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2023-05-05 Avienda Draft SWMP SCD14001 Landform® and Site to Finish® are registered service marks of Landform Professional Services., LLC Level 7 Development, LLC AVIENDA Chanhassen, Minnesota DRAFT STORMWATER MANAGEMENT PLAN DESIGN THROUGH PHASE 3: AVIENDA ROWHOMES May 05, 2023 I hereby certify that this plan was prepared by me, or under my direct supervision, and that I am a duly Licensed Professional Engineer under the laws of the State of MINNESOTA. Steven E. Sabraski Date License No. 47165 Avienda 5/5/2023 Stormwater Management Plan – Phase 2 i i TABLE OF CONTENTS INTRODUCTION ................................................................................................................................................. 1 JURISDICTIONAL BODIES AND REQUIREMENTS ................................................................................................ 1 City of Chanhassen Requirements ................................................................................................................ 1 Riley Purgatory Bluff Creek Watershed District Requirements .................................................................... 2 MNDOT Requirements .................................................................................................................................. 2 Minnesota Pollution Control Agency (MPCA) Requirements ....................................................................... 2 Net Requirements ......................................................................................................................................... 2 Predevelopment SITE ........................................................................................................................................ 3 Lake Susan Tributary Area ............................................................................................................................ 4 Bluff Creek Tributary Area ............................................................................................................................ 4 PROPOSED STORM WATER MANAGEMENT ..................................................................................................... 5 Phase 2 Development ................................................................................................................................... 5 Ultimate Development.................................................................................................................................. 5 Drainage Patterns ......................................................................................................................................... 6 Abstraction of Runoff (RPBCWD Permitting) ................................................................................................ 7 Filtration of Runoff (MPCA Permitting)......................................................................................................... 8 Compensatory Floodplain Storage ................................................................................................................ 9 Nondegradation of Downstream Waters ..................................................................................................... 9 Rate Control ................................................................................................................................................ 13 Water Quality – TSS and TP ........................................................................................................................ 13 WETLANDS HYDROLOGY IMPACTS ................................................................................................................. 14 CONSTRUCTION STORMWATER MANAGEMENT ............................................................................................ 14 CONCLUSION ................................................................................................................................................... 15 CONTACT INFORMATION ................................................................................................................................ 15 Avienda 5/5/2023 Stormwater Management Plan – Phase 2 ii ii APPENDICES A. NRCS Soils Map B. Existing Drainage a. Existing Drainage Map b. Existing Lake Susan HydroCAD Model c. Existing Bluff Creek Only HydroCAD Model d. Existing Bluff Creek w/ M10 HydroCAD Model e. ZRC HydroCAD Modeling C. Phases I & 2 Drainage a. Phases 1 & 2 Drainage Map b. Phases 1 & 2 Irrigation Area Exhibit c. Phase I Wetland Floodplain Fill Map d. Phases 1 & 2 Lake Susan HydroCAD Model e. Phases 1 & 2 Bluff Creek HydroCAD Model f. Phases 1 & 2 Bluff Creek South and M09 HydroCAD Model D. Ultimate Drainage Maps a. Ultimate Drainage Map b. Ultimate Storm Sewer Drainage Map E. Ultimate HydroCAD Models a. Proposed Site HydroCAD Model b. Proposed MNDOT Wetland M9 HydroCAD Model c. Proposed MNDOT Wetland M10 HydroCAD Model F. Miscellaneous Drainage Calculations and Tables a. Table 1 – Drainage Area Summaries b. Table 2 – Runoff Volume Summary – Lake Susan c. Table 3 – Runoff Volume Summary – Bluff Creek d. Table 4 – Peak Runoff Rate – Powers South e. Table 5 – Peak Runoff Rate – East Culvert f. Table 6 – Peak Runoff Rate – Powers North g. Table 7 – Peak Runoff Rate – Lyman NE h. Table 8 – Peak Runoff Rate – Lyman North i. Table 9 – Peak Runoff Rate – NW and Wetland 6 j. Table 10 – Peak Runoff Rate – Wetland 3 k. Table 11 – Peak Runoff Rate – West-South l. Table 12 – Peak Runoff Rate – Southwest m. Table 13 – Peak Runoff Rate – East Woods n. Table 14 – Peak Runoff Rate – Wetland 4 Channel Avienda 5/5/2023 Stormwater Management Plan – Phase 2 iii iii o. Table 15 – Peak Runoff Rate – South p. Table 16 – Peak Runoff Rate – Southeast q. Table 17 – Comparative Floodplain Storage r. Table 18 – Infiltration Areas – Ultimate s. Table 19 – Abstraction Areas – Phases 1 & 2 t. Table 20 – Watershed Buffer Averages u. Table 21 – Pond Design Level Summary G. Water Quality Modeling –MIDS Output H. Wetlands Hydrology a. Table A – Avienda Wetlands Hydrology b. Table B – Wetland Functions and Values Impacts from Development I. Phases 1 & 2 - Storm Sewer a. Catch Basin Drainage Area Map b. Storm Sewer Calculations c. Catch Basin Inlet Capacity and Lane Spread J. Jellyfish Filter Documentation K. Nondegradation Summary, City of Chanhassen Phase II Nondegradation P8 Output L. Lake Susan Use Attainability Assessment (UAA) Update, RPBCWD, 2013 (Selected Sections) M. MNDOT Wetland “As-Built” Plans REFERENCES (NOT INCLUDED IN REPORT) i. Preliminary Geotechnical Evaluation Report, Braun Intertec, April 12, 2017 ii. Double Ring Infiltrometer Test Results, Braun Intertec, July 12, 2017 iii. U.S. Highway 212, Design Package 18 (DP-18) Drainage Calculations by Zumbro River Constructors Avienda 5/5/2023 Stormwater Management Plan – Phase 2 1 1 INTRODUCTION The proposed Avienda development totaling 115.5 acres in Chanhassen envisions an ultimate build out with construction of public roads and utilities, residential, commercial, hotel, and office components with associated private improvements. Phase 3 of the site improvements includes the Avienda Rowhomes with three and four unit buildings on the east side of Avienda Parkway. These improvements are in both the Lake Susan and Bluff Creek watersheds. This stormwater Management Plan includes Phases 1-3. Phase 2 of the development encompassed fine grading, installation of public utilities, stormwater management systems, and construction of public (Mills Drive) and private streets, with sidewalks within the Avienda Townhomes plat. Two reuse basins (cisterns) and irrigation systems were installed to provide abstraction. During construction of Phase 1 improvements infiltration testing was done on various infiltration basins. The results showed that infiltration was zero or approaching zero after two hours and therefore does not work for abstraction of runoff. JURISDICTIONAL BODIES AND REQUIREMENTS The City of Chanhassen (City), the Riley Purgatory Bluff Creek Watershed District (Watershed or RPBCWD), and Minnesota Department of Transportation (MNDOT) have review jurisdiction over storm water runoff from proposed redevelopment at this site. The Minnesota Pollution Control Agency (MPCA) has jurisdiction under the State Construction Stormwater NPDES General Permit. City of Chanhassen Requirements The City requires rate control such that the proposed discharge rates for the 2-year, 10-year, and 100-year, 24-hour storms do not exceed the existing discharge rates. Water quality treatment is to be to NURP standards. Storm sewer pipe shall carry the 10-year design storm. Low floor elevations need to be a minimum of 3-feet above the 100-year high water level (HWL). Emergency overflows shall be sized to handle extreme events. Emergency overflows shall be set at least 1.5 feet below adjacent low floor elevations. Maintenance and access easement shall be a minimum of 20 feet wide. The City has indicated that if the site meets the Watershed’s requirements it will meet the City’s requirements. Lake Susan Lake Susan is classified as an “Improve – 2” management class waterbody in the City’s Surface Water Management Plan. The management strategy for Improve – 2 waterbodies is to maintain or improve their water quality and look for opportunities to apply higher standards. Bluff Creek Bluff Creek is classified as an “Improve – 1” management class waterbody in the City’s Surface Water Management Plan. The management strategy for Improve – 1 waterbodies is to improve trends and impose higher standards. Avienda 5/5/2023 Stormwater Management Plan – Phase 2 2 2 Riley Purgatory Bluff Creek Watershed District Requirements The Watershed District requires the same rate control as the city and additionally for the 10-day, 100-year snowmelt from all major discharge points at the perimeter of the site. The watershed uses the following storm totals for the rainfall events: 2-year = 2.87-inches, 10-year = 4.27-inches, 100-year = 7.41-inches. Volume control is required such that 1.1-inches of runoff from the site impervious areas are abstracted, or on restricted sites, to abstract 0.55-inches of runoff (or the maximum extent practicable) from impervious surfaces. Infiltration or filtration practices must have pretreatment. Water quality treatment requirements are satisfied if the volume control standards are met. Low floor elevations need to be at least 2-feet above the 100-year HWL. Per Rule J, Section 2.2 d, requirements do not apply to trails, sidewalks, and retaining walls that do not exceed 10 feet in width and are bordered downgradient by a pervious area extending at least half the trail width. MNDOT Requirements MNDOT requires that all drainage onto their property maintain the existing runoff rates up to the 100-year storm. An approved drainage permit from MnDOT was received on 2/20/2020. Minnesota Pollution Control Agency (MPCA) Requirements The MPCA requirements follow the NPDES permit process. Requirements include preparation of a Storm Water Pollution Prevention Plan (SWPPP), retention of 1 inch of runoff from new impervious surfaces (infiltration on D soils is restricted) or provide filtration or provide permanent wet detention basins with volumes of 1800 c.f. of storage below the pipe outlet for each tributary acre, protection of buffer areas, minimization of soil compaction, and meeting impaired water standards. Where retention of 1-inch of runoff is unattainable, a combination of wet sedimentation basins and/or filtration must be provided such that the system removes 80% of total suspended solids (TSS). Because the site drains to impaired waters, stabilization of all exposed soil areas must be initiated immediately to limit soil erosion but in no case completed later than seven (7) days after the construction activity in that portion of the site has temporarily or permanently ceased. Additionally, temporary sediment basins are required for common drainage locations that serve an area with five or more acres disturbed at one time. Because the disturbed area is greater than 50 acres and the site drains to and has a discharge point within one mile (aerial measurement) of impaired waters, the NPDES Permit application needs to be submitted 30 days prior to the start of construction and include all calculations. See Existing Site Drainage Patterns, below. An NPDES Construction Stormwater permit Notice of Coverage letter was issued on 5/29/2019. Net Requirements The following are the most restrictive requirements or net requirements for the site: Avienda 5/5/2023 Stormwater Management Plan – Phase 2 3 3 • Rate Control – hold the proposed discharge rates to the existing rates for the 2-year, 10-year, 100- year, 24-hour rainfalls and the 10-day, 100-year snow melt. • Volume Abstraction (RPBCWD) – abstract 1.1 inches, or 0.55 inches, or the maximum extent practicable, of runoff from the impervious area of the site. • Water Quality (RPBCWD) – meet full volume abstraction requirements or remove 60% of TP and 90% of TSS. • Water Quality (MPCA) – remove 80% of total suspended solids from stormwater (without infiltration). • Storm Sewer Pipe (Chanhassen) – size for the 10-year storm. • Emergency Overflows – sized for extreme events. • Low Floor Elevations – must be at least 3.0 feet above the 100-year HWL (rainfall or snowmelt) and 1.5 feet above the emergency overflow. • Easements for maintenance and access – must be a minimum of 20 feet wide. • Temporary Ponding – must be provided for tributary areas draining 5 acres or more to a common location and provide live storage for the 2-year, 24-hour storm. PREDEVELOPMENT SITE The site comprises approximately 115.5 acres of non-contiguous land located at the southwest and southeast corners of Lyman Boulevard (County Road 18) and Powers Boulevard (County Road 17) immediately north of U.S. Highway 212 in the City of Chanhassen, Minnesota. For drainage calculations we have used the 113.88 acres that are south and west of Lyman Boulevard and Powers Boulevard (all but proposed Outlot B of the Avienda plat). An additional 5.06 acres off-site drain onto the site and are accounted for in our drainage calculations. In the southwest corner of the site, 20.85 wooded acres are in the Bluff Creek Overlay District and will remain undisturbed. Therefore, the portion of the site to be disturbed is 93.03 acres. Another 3.6 acres will be disturbed offsite. Most of the site consists of farm fields with the southwest corner containing the wooded area covered by the Bluff Creek Overlay District. The fields are mostly separated by tree lines. Several wetlands exist on site (refer to the separate wetland alteration submittals for further information). The topography is hilly with elevations ranging from 875 to 952 and drainage occurring in multiple directions. The highest areas are in the NE and SW with low areas in the NW, SE, west-central, and east-central areas. There were two buildings on site along Lyman Boulevard – a barn or large shed and a house with associated improvements. Approximately 0.4 acres were impervious prior to the demolition of these buildings as part of site preparation. Carver County recently rebuilt Lyman Boulevard as a four-lane road. MNDOT built Powers Boulevard as a four-lane road as part of the Highway 212 improvements. Bluff Creek Boulevard approaches the west property line from the southwest as a two-lane roadway. There are residential developments to the west and south of the site. The site is divided into two major drainage areas. The northeast and eastern portion of the site drains east, eventually to Lake Susan; the rest of the site drains west and south, ultimately reaching Bluff Creek. Avienda 5/5/2023 Stormwater Management Plan – Phase 2 4 4 For drainage analysis, per the Watershed District, there are 13 main drainage discharge locations around the perimeter of the site. Four of these areas drain to Lake Susan and the other nine drain to Bluff Creek. One of the Bluff Creek discharge locations is Wetland 3, which straddles the site boundary. The outlet is to the south to Bluff Creek Boulevard via overland flow. Portions of the site drain directly to MNDOT Wetland M9 to the south. All Lake Susan bound flow drains indirectly through MNDOT Wetland M10 to the east. The NRCS soils map shows most of the site covered with Lester-Kilkenny loams and clay loams with slopes ranging from 1 to over 25 percent. These correspond to NRCS Type B soils; however, soil borings indicate that the underlying soils are mostly clays. Lake Susan Tributary Area This area is in the northeast and east central portions of the site. It is comprised of approximately 37.37 acres, most of which drains to Wetlands #1, 2, 7 and 8 before draining under Powers Boulevard and into the U.S. Highway 212 “Englewood” pond. An additional 0.93 acres from off-site drains to Wetland 8. The remainder of this tributary area drains directly to Lyman and Powers Boulevards and then into the “Englewood” pond. From the “Englewood” pond, stormwater drains north through MNDOT Wetland M10, under Lyman Boulevard, and eventually to Lake Susan. The site discharge point is within 4,600 feet of Lake Susan. Lake Susan is listed as an Impaired Water by the MPCA, Assessment Unit 10-0013-00; Impaired for Mercury in Fish Tissue; Nutrient/Eutrophication Biological Indicators. There is no TMDL for Nutrient/Eutrophication Biological Indicators for Lake Susan. There is an existing buried, plugged 12-inch CMP culvert at the outlet from Wetland 1. We have shown it on the plans, but it provides no outlet function at present. Bluff Creek Tributary Area This area is comprised of approximately 76.52 acres, which drains in three main directions: to the northwest corner, the southwest, and south property lines. There are an additional 4.40 off-site acres that drain on site. The northwest discharge points are within 750 feet of Bluff Creek. The west discharge points are within 1,100 feet of Bluff Creek. The south discharge points are within 1,500 feet of Bluff Creek. Bluff Creek is listed as an Impaired Water by the MPCA, Assessment Unit 07020012-710; Impaired for Fishes Bioassessments and for Turbidity. There is an approved TMDL for TSS (Total Suspended Solids) to address both impairments. The TMDL Implementation Plan Final Report, dated July 2013 shows that 70% of current TSS load is added after the Pioneer Trail crossing and is mostly due to erosion of stream banks and bluffs as well as poorly vegetated ravines and gullies. To meet the TMDL turbidity standard, load reductions of 87% are required during high flow conditions. Section 4.2 of the TMDL report states the following: “If a construction site owner/operator obtains coverage under the NPDES/SDS General Stormwater Permit and properly selects, installs and maintains all BMPs required under the permit, including those related to impaired waters discharges and any applicable Avienda 5/5/2023 Stormwater Management Plan – Phase 2 5 5 requirements found in Appendix A of the Construction General Permit, the stormwater discharges would be expected to be consistent with the WLA in this TMDL”. Four of the south discharge points drain into MNDOT Wetland M9, which eventually drains into Bluff Creek. Refer to Appendices A and B for modeling information on the existing drainage patterns, volumes, and peak rates of runoff, which are also summarized in tables under Appendix F. PROPOSED STORM WATER MANAGEMENT There are six design goals of the proposed drainage plan: 1. Follow the existing drainage patterns to the extent practicable 2. Provide rate control to limit the rate of runoff to the current condition for each discharge point 3. Filter 1.1-inches of runoff from impervious areas of the site for MPCA/NPDES permit 4. Abstract 0.55-inches of runoff from impervious areas of the site for RPBCWD 5. Provide water quality treatment for the entire site 6. Provide other best management practices where practicable Phases 1-3 (Avienda Rowhomes) Phase 3 improvements will cover construction of a private street and alley, utilities, underground stormwater basins, Rowhomes with driveways, walks, and patios. Phase 2 improvements included construction of Mills Drive (a public road), Mills Lane (a private road north of Mills Drive), and Avienda Lane (a private road south of Bluff Creek Boulevard), as well as public and private utilities. Individual single-family villas will be constructed by a builder. Phase 1 included mass grading and construction of public streets, trails, and walks. Per the RPBCWD’s Rule J exceptions (2.2d), the trails and walks are not treated as impervious in the stormwater infiltration calculations. Storm sewer will pick up runoff from the improved areas and direct it to pretreatment devices prior to discharge to treatment basins and systems. Runoff from larger storms will continue downstream and offsite. The treatment basins and systems will be located on private property but will be covered by drainage and utility easements. As parcels including these earlier basins are developed, some of the open air basins will be converted to underground systems to provide rate control, filtration, and abstraction of runoff. Per the Watershed’s Rule J exceptions (2.2d), the trails and walks do not need to be treated as impervious in the stormwater calculations. Ultimate Development The pervious portion of the proposed condition site will be approximately 46.5 percent. The modeled area (HydroCAD) is about 45.0% pervious (refer to the Drainage Area Summaries in Appendix F) due to offsite tributary areas. The increase in impervious area from development will be treated on-site. Since the site consists predominantly of clay soils, abstraction through infiltration is likely infeasible. Abstraction for the private development parcels may include other options such as stormwater reuse for irrigation. Rate control Avienda 5/5/2023 Stormwater Management Plan – Phase 2 6 6 through detention facilities will also be provided to meet existing peak discharge rates. Refer to Appendices D, E, and F for additional information. All calculations and models are based on current rules. We realize that these rules may change over the course of build out, in which case, those portions of the site that are developed after any potential new requirements will need to meet those new requirements. Oscillations occur in the following model storms due to the addition of filtration into the model. The oscillations occur after the peak discharge rates are reached, on the far limb of each storm. The oscillations do not affect peak discharge rates. Drainage Patterns Runoff from the proposed development has been designed to discharge from the site similarly to the existing condition for the four major drainage areas: East, Northwest, Southwest, and South. The east basin drains to Lake Susan, while the remaining three drain to Bluff Creek. Tables 1 and 1a in Appendix F compare the existing and proposed tributary drainage areas for the Ultimate and Phases 1-3 of development. Lake Susan / MNDOT Englewood Pond During the design of Highway 212, the City of Chanhassen requested that MNDOT’s Englewood pond (east of Powers Boulevard and north of Highway 212) handle the runoff from a future residential development west of Powers Boulevard. This is the portion of our site that drains to Lake Susan. Zumbro River Constructors (ZRC), the Highway 212 designers, sized the Englewood pond to meet the NURP water quality criteria (dead volume from 2.5-inch storm) and the stormwater rate-control requirement (6.0-inch, 24-hour storm) based on 65% impervious with a runoff curve number of 85 and a tributary area of 41.4 acres. Refer to ZRC calculations related to this tributary area. As discussed above, Avienda’s existing tributary area to the east is 37.37 acres. The Phase 3 proposed contributing area to the east is 40.21 acres. Both areas are less than the 41.4 acres used to size the Englewood pond. The existing 54-inch culvert (ZRC references: Powers Sta. 114+00, also inlet 3162 to outlet 3161) under Powers Boulevard also provides a limiting factor for the peak discharge from the site. The Powers Blvd Culvert Check – 100 Year Storm spreadsheet found in Appendix F show that the culvert has a full flow capacity of 156.1 cfs, based on the rational method and the installed pipe slope. Using the Ultimate HydroCAD model (refer to Appendix E), the Powers Boulevard culvert (node 11.4P) has 60.04 cfs discharge from the 6.0-inch, 24-hour storm, and 85.37 cfs for the 7.41-inch, 24-hour storm, which means it is adequately sized. Nodes 0S and 0P in the ZRC Design Check HydroCAD model are used to model the ZRC design and compare to the proposed Avienda design. There will be less total discharge in the proposed condition than that proposed by ZRC. There will be less total runoff volume than the existing condition for the 1-year, 2-year, and 10-year storms as well as the 10- Avienda 5/5/2023 Stormwater Management Plan – Phase 2 7 7 day, 100-year snowmelt, due to the abstraction requirements of the Watershed District. The total runoff volume for the 100-year storm will be slightly higher than in the existing condition. Refer to Table 2 in Appendix F for comparative runoff volumes (including the proposed runoff volumes from MNDOT’s assumed design). For impacts of runoff to the downstream wetlands, refer to the Wetlands Hydrology Impacts section below (p.14). Phase 3 construction will mostly be in the Lake Susan watershed. Bluff Creek Proposed runoff volumes for individual storms are listed in Table 3, Appendix F. For the 1-year, 2-year, 10- year and 100-year storms, there is a slight increase in total runoff volume. For the 10-day, 100-year snowmelt, the proposed runoff volume will be less than the existing volume. For peak discharge rates, see the Rate Control section and Tables 8 through 16 in Appendix F. Abstraction of Runoff (RPBCWD Permitting) The original Phase 1 design envisioned infiltration to meet the abstraction requirements based on initial infiltration testing. A design infiltration rate of 0.06 in/hr was used. Phases 1-3 have since been designed without infiltration based on testing of proposed infiltration basins. Abstraction will be, and has been, provided by stormwater reuse through irrigation. A summary of required and provided abstraction for the entire site is provided in Table 19 under Appendix F. Phases 1-3 – Site Development Up Through Avienda Rowhomes Bluff Creek Drainage Some additional runoff from green spaces and patios in Phase 3 will now drain to Bluff Creek, but the required abstraction has not changed significantly. During construction of the Phase 1 infiltration basins, testing was performed to ascertain the actual infiltration rates achievable. All test results were at zero or approaching zero inches per hour after two hours of testing. Therefore, we proposed that we have a restricted site and the Watershed Board agreed. Restricted sites need to provide abstraction of 0.55 inches of runoff from impervious surfaces or to the maximum extent practicable. Development of Phases 1 & 2 resulted in a total of 11.377 ac. (495,558 sf) of new impervious surfaces. Less 69,822 s.f. of sidewalk results in 425,736 s.f. (9.774 ac.) of new impervious surfaces generating runoff that needs to be abstracted (trails and walks are exempt per Rule J, subsection 2.2 d). This equates to a total site full abstraction requirement of 39,026 c.f. (425,736 sf x 1.1 in / 12 in/ft) or 19,513 c.f. for restricted sites. With 20,352 c.f. proposed to be abstracted per MIDS modeling, these phases will accomplish 51.7% of the full required volume or equivalent to a depth of 0.57 inches, thus meeting the restricted site requirement. Additional green space adjacent to Phases 1-3 will be built on in future phases. Therefore, abstraction for Phases 1-3 can’t be provided in these areas. Avienda 5/5/2023 Stormwater Management Plan – Phase 2 8 8 Lake Susan Drainage With Phase 3 (Avienda Rowhomes) new impervious area of 173,190 s.f. will be added to the Lake Susan tributary area and will require abstraction. The runoff to Lake Susan requires 15,876 c.f. of abstraction for the full requirement (1.1-iunch of runoff) per the MIDS model. The stormwater reuse irrigation system for the rowhomes will abstract 4,442 c.f. or 28.2% of the full required volume per MIDS (and is limited by the available irrigation area once the cistern size reaches the maximum volume that can be irrigated over the pervious area). This equates to 0.31 inches over the new impervious surfaces, which does not meet the restricted site requirements of 0.55-inches. An important consideration is that the MIDS model does not account for oversizing of the cistern or storage basin which would allow more stormwater to be used for irrigation over the course of the season. The city has required us to analyze annual abstraction of stormwater runoff through irrigation with a Stormwater Reuse Calculator spreadsheet developed by Emmons & Olivier Resources for the Minnehaha Creek Watershed District and the Mississippi Watershed Management Organization. This spreadsheet uses actual rainfall data from three years to analyze runoff and irrigation reuse for dry, average, and wet years. Using the Stormwater Reuse Calculator for the Rowhomes site shows that larger basins lead to greater abstraction for a full year (runoff from larger storms can be saved and used for irrigation). For an average or typical year (not wet or dry), the spreadsheet estimates reuse of 75.0% of total runoff for irrigation purposes. We feel this meets the intent of the Summary Refer to the Irrigation Area exhibit in Appendix C for a map of the area to be irrigated in Phases 1-3, along with a schematic layout of the future improvements. Refer to Table 19 in Appendix F for a summary of the impervious areas, along with required and provided abstraction amounts. Ultimate Development The ultimate development will result in a total of 61.58 ac. (2,682,557 sf) of impervious surfaces, excluding public walks and trails. This equates to a total site abstraction requirement of 243,734 c.f. (2,682,557 sf x 1.1 in / 12 in./ft.). The site has been modeled to have 24.40 acres (1,062,844 sf) of rock beds and 37,160 s.f. of surface basin for infiltration. The infiltration areas will provide abstraction of 264,001 c.f. ((1,062,844 +37,160) sf x 0.24 ft.) or 108.3% of the required volume. Pretreatment will be provided for each system. Pretreatment will be designed on a site-by-site basis and could include: hydrodynamic separators, sump manholes with baffles, or water quality settlement basins. Treatment of Runoff (MPCA Permitting) For MPCA NPDES permitting, infiltration on clay soils is restricted, therefore we are proposing a combination of filtration and Design Level 2 & 3 surface ponds to treat 1.1-inch of runoff from impervious surfaces, thus exceeding the 1.0-inch requirement. Phase 1 & 2 Development (Public Rights of Way and Avienda Townhomes) Avienda 5/5/2023 Stormwater Management Plan – Phase 2 9 9 Underground filtration will be accomplished with distribution pipes within a rock bed designed to hold 1.1- inch of runoff, all overlaying a sand layer to provide filtration. Surface filtration basins will have open air ponding above the sand filtration beds. Runoff greater than 1.1-inch will flow downstream. The open air ponds will be a combination of Design Level 2 & 3 to provide the required 80% TSS removal. Filtration will be accomplished by surface biofiltration basins with underdrains and one underground sand filtration bed with underdrains. These basins, their types, and pretreatment provided are listed in Table below. Filtration Basins Basin ID Basin Type Pretreatment 21P Surface Biofiltration Sump Manhole with skimmer (Phase 1 - STMH 502A) & Pond for Irrigation Reuse 25P Underground Sand Filtration Sump Manholes with skimmers (Phase 2 - STMH 101, STMH 121) 31P Surface Biofiltration Sump Manhole with skimmer (Phase 2 - STMH 402) 47P Surface Biofiltration Sump Manhole with skimmer (Phase 1 - STMH 201) Ultimate Development Filtration sand beds will be underground or at the surface. Flows greater than 1.1-inch of runoff will be passed downstream. The filtration volume will be greater than 110% of the required volume. Alternatively, Manufactured Treatment Devices will also be utilized to satisfy the water quality treatment requirements for the development. However, for simplicity in analyzing the full build-out scenario, filtration basins have been assumed. Refer to Table 18 in Appendix F for a summary of impervious areas and filtration provided. Compensatory Floodplain Storage Compensatory floodplain volumes for each foot of elevation have been provided for the fill placed in Wetlands 1 and 2. Refer to Table 17 in Appendix F. Compensatory floodplain is all provided in the Lake Susan watershed therefore there are no changes to these calculations for Phase 2 development. Nondegradation of Downstream Waters Runoff from the existing site is currently undetained. The City of Chanhassen has estimated annual flows from areas around the City at present and in the future and published them in the Phase II Nondegradation P8 Output Subwatershed Summary (Nondegradation Summary). Refer to Appendix K. East to Lake Susan The City’s prorated estimated proposed runoff volumes in 2020 are 1.383 af/ac/yr. With 38.293 acres draining to Lake Susan in the existing condition, the estimated existing flow would thus be 52.959 af/yr based Avienda 5/5/2023 Stormwater Management Plan – Phase 2 10 10 on the City’s per acre value (refer to Appendix H for the prorated summary). With the proposed area draining to Lake Susan of 40.21 acres, the allowed volume would be 55.610 af/yr (40.21 ac x 1.383 af/ac/yr). Our modeling of the Phases 1-3 in MIDS shows an annual flow draining to Lake Susan of 24.271 af. Since this is below the City’s allowed amount, the Lake Susan tributary area meets the nondegradation standard. Phase 1 included the construction of two ponds (1P and 11.4P). Phase 3 proposed work includes a rate control basin and a reuse cistern, both underground (13P). Refer to Table B in Appendix H for additional data. West to Bluff Creek The City’s prorated estimated proposed runoff volumes in 2020 are 1.367 af/ac/yr. With 80.819 acres draining to Bluff Creek in the existing condition, the estimated existing flow would thus be 110.480 af/yr based on the City’s per acre value (refer to Appendix H for the prorated summary). With the proposed area draining to Bluff Creek of 79.129 acres, the allowed volume would be 108.137 af/yr (79.129 ac x 1.367 af/ac/yr). Our modeling of the Phases 1 & 2 in MIDS shows a discharge from the area draining to Bluff Creek of 39.286 af average annual flow. Since this is below the City’s allowed amount, the Bluff Creek tributary area meets the nondegradation standard. Refer to Appendix H for a summary of the wetland functions and values impacts from this development compared to the existing condition. Refer to Appendix G for the MIDS Modeling results for water volumes. Wetland 6 Hydrographs showing no impact for Wetland 6 follow. Wetland 6 is a Medium value wetland which allows the proposed hydrograph to be 2 days (48 hours) longer than the existing for the 1-year and 2-year storms and up to 14-days longer for the 10-year storm. Avienda 5/5/2023 Stormwater Management Plan – Phase 2 11 11 1-Year Hydrograph Results Phases 1 & 2 - Time to Drain Down (Hours) Existing - Time to Drain Down (Hours) Difference (Hours) Difference (Days) 57.32 25.04 32.28 1.35 885.00 885.10 885.20 885.30 885.40 885.50 885.60 885.70 885.80 885.90 886.00 0.00 10.00 20.00 30.00 40.00 50.00 60.00 70.00 80.00 90.00Elevation Time (hours) Avienda -Wetland 6 -1-Year Hydrographs Existing Wetland 6 Elevation (feet) Phases 1 & 2 Wetland 6 Elevation (feet) Avienda 5/5/2023 Stormwater Management Plan – Phase 2 12 12 2-Year Hydrograph Results Phases 1 & 2 - Time to Drain Down (Hours) Existing - Time to Drain Down (Hours) Difference (Hours) Difference (Days) 63.38 25.26 38.12 1.59 885.00 885.10 885.20 885.30 885.40 885.50 885.60 885.70 885.80 885.90 886.00 0.00 10.00 20.00 30.00 40.00 50.00 60.00 70.00 80.00 90.00Elevation Time (hours) Avienda -Wetland 6 -2-Year Hydrographs Existing Wetland 6 Elevation (feet) Phases 1 & 2 Wetland 6 Elevation (feet) Avienda 5/5/2023 Stormwater Management Plan – Phase 2 13 13 10-Year Hydrograph Results Phases 1 & 2 - Time to Drain Down (Hours) Existing - Time to Drain Down (Hours) Difference (Hours) Difference (Days) 64.96 25.26 39.70 1.65 Rate Control Runoff from the existing site is currently undetained. We have provided peak discharge control in the proposed condition for each of the development’s existing discharge points to match or be below the existing peak rates. The peak rates are compared in Tables 4 thru 16 in Appendix F, and are based on the existing and ultimate HydroCAD models in Appendices B and E. Water Quality – TSS and TP City of Chanhassen Nondegradation Water quality modeling was done with MIDS for the two major basins, Lake Susan and Bluff Creek. The modeling was done for Phases 1-3 conditions to illustrate the City’s non-degradation requirements are being met. The results are shown in Appendix G and Table B in Appendix H, which also has mass balance results comparing existing and proposed conditions. Refer to the manufactured treatment devices documentation in Appendix J. 885.00 885.10 885.20 885.30 885.40 885.50 885.60 885.70 885.80 885.90 886.00 0.00 10.00 20.00 30.00 40.00 50.00 60.00 70.00 80.00 90.00Elevation Time (hours) Avienda -Wetland 6 -10-Year Hydrographs Existing - Wetland 6 Elevation (feet) Phases 1 & 2 - Wetland 6 Elevation (feet) Avienda 5/5/2023 Stormwater Management Plan – Phase 2 14 14 RPBCWD Calculations Water quality modeling was done with MIDS for Phases 1-3. Lake Susan drainage has 65% removal of TP and 91% removal of TSS. Bluff Creek NW drainage has 82% removal of TP and 100% removal of TSS. Bluff Creek South drainage has 77% removal of TP and 90% removal of TSS. These removal rates show that the site will meet the requirements of the Watershed. Additionally, due to the site not meeting the full abstraction requirement, water quality requirements need to be met for discharge to each wetland. The removals for each wetland in the Bluff Creek Watershed are listed in the MIDS Summary of Results – Bluff Creek table. The removals for discharge to MNDOT Wetland 10 are the same as for Lake Susan drainage listed above. All MIDS results are provided in Appendix G. Phase 2 has a Jellyfish Filter® downstream of basin 47P will be a model JF4 with two 40” High-Flo® cartridges and one Draindown® cartridge. These will have a capacity of 0.325 cfs (0.13*2 + 0.065) which is greater than the 100-year flow rate of 0.29 through the Jellyfish Filter®. The sizing of the cartridges has been provided in accordance with the TAPE program requirements. The location of the Jellyfish Filter® will be adjusted slightly in Phase 3 to accommodate the new underground filtration system of Basin 47P. Refer to Appendix J for Jellyfish Filter® documentation. MPCA Calculations Water quality modeling was done with MIDS for the proposed filtration systems (no infiltration) in the two major watersheds, Lake Susan, and Bluff Creek. The modeling was done for Phases 1-3. Both watersheds meet the requirements for 80% TSS removal as discussed above under RPBCWD Calculations. The results are shown in Appendix G, which also has mass balance results comparing existing and proposed conditions. WETLANDS HYDROLOGY IMPACTS We have tabulated the hydrology impacts to three onsite and two offsite wetlands, including total discharge volume into the wetlands and high-water levels for the 1-year, 10-year, and 100-year, 24-hour storms. The onsite wetlands are Wetland 3, Wetland 4, and Wetland 6. The offsite wetlands are MNDOT M9, south of the site and west of Powers Boulevard (City basin BC-A5.11), the second one is MNDOT M10, east of Powers Boulevard (City basin LS-A2.2). Refer to Appendix H for the tables. CONSTRUCTION STORMWATER MANAGEMENT To minimize erosion and sedimentation, temporary onsite on-site BMPs were installed as part of Phase 1 mass grading. There will be minimal grading for Phase 3, therefore additional temporary sedimentation basins will not be required. Additional controls will include: silt fence, inlet protection, steep slope stabilization, phased construction, and street sweeping. Stabilized rock construction entrances will also be implemented as part of the temporary erosion and sediment control plan and SWPPP, both at the project entrances and at individual development Avienda 5/5/2023 Stormwater Management Plan – Phase 2 15 15 sites. Individual site rock entrances will be added as each site comes under construction, and after the public roads are paved. Refer to the design/construction documents for additional information and details. The SWPPP will continue to be updated as individual phases/sites move forward with final design and construction. CONCLUSION Our design meets the MPCA’s, MNDOT’s, the Watershed’s and the City’s requirements for abstraction, rate control, and water quality. Therefore, we respectfully request approval of the Phase 2 plan. CONTACT INFORMATION This document was prepared by: Landform 105 South Fifth Avenue Suite 513 Minneapolis, MN 55401 Please direct any questions regarding the storm water system design to Steve Sabraski at ssabraski@landform.net or 612.638.0243. SCD14001 Landform® and Site to Finish® are registered service marks of Landform Professional Services., LLC APPENDIX A NRCS Soils Map SCD14001 Landform® and Site to Finish® are registered service marks of Landform Professional Services., LLC APPENDIX B Existing Drainage Map And HydroCAD Model C.S.A.H. NO. 18 LYMAN BOULEVARD POWERS BOULEVARDU.S. TRUNK HIGHWAY NO. 212BLUFF CREEK BLVD.MILLS DRIVE CHAINLINK FENCE EAST OF LINECHAINLINK FENCE ON LINE WOODED AREA RE:937.71 IE:925.96 RE:915.15IE:884.0510057915.73HYD@GRND B-3 B-2B-1 B-4 B-5 B-6 B-7 B-8 B-9 B-10 B-12B-11 20' WETL A N D B UF F E R 20' W E T L A N D B U F F E R 30 F O O T W E T L A N D B U F F E R S E T B A C K 30 F O O T W E T L A N D B U F F E R S E T B A C K B-13 B-14 B-15 B-16 B-17 B-18 B-19 B-20 B-21B-22B-23B-24 B-25 B-26 B-27 B-28 B-29 B-30 B-31 B-32 RIVER ROCK D R I V E S .RIVER ROCK DRIVE N. 20' WETLAND BUFFER 30 FOOT WETLAND BUFFER SETBACK 20' WETLA N D B U FFE R 30 FOOT WETL A N D B UFFER S ETB A C K SUNSETTRAIL C.S.A.H.NO. 17LO W F L O O R E L E V A T I O N A B O V E 8 8 3 . 5 MI N . L O W F L O O R E L E V A T I O N = 9 2 5 . 5 MIN. LOW FLOOR ELEVATION = 925.5LOW FLOOR ELEVATION ABOVE 897.115" RCPCOCO XXXXXXXXXXOEOEOEOEOEOEOEOEOEOECOCO SIG.BASE SIG.BASE SIG.BASE SIG.BASE SIG.BASE SIG.BASE CMP 24IE=884.1 CMP 24IE=894.2 CABXHH CABX CABX 54" RCPIE=894.5 54" RCPIE=895.7 IIIIIIIIIIIIUEOEOEOEOE OE OE OE OE 15" R C P 15" RCPSSMHRE=936.6IE=925.3(E)IE=925.2(W) SSMHRE=937.7IE=925.9(W)18" RCP15" RCP12" RCP12" RCP15" RCP>I15" RCP 15" RCP 15" RCP15" RCP HH SIG.BASE SIG.BASE LT SIG.BASE EM SIG.BASE SIG.BASE SIG.BASE HH SIG.BASE SIG.BASE SIG.BASE CABX LT LTMB 12" RCP12" RCP18" RCP18" RCP12 " R C P 15" RCP 12" RCP 21" RCP 18" RCP 18" RCP 15" RCP GMEM21" RCP 15" RCP 21" RCP 15" RCP 12" RCP12" RCPBOULDER RET. WAL EDGE OF PLOWED FIELD EDGE OF PLOWED FIELD EDGE OF PLOWED FIELD EDGE OF PLOWED FIELD EDGE OF PLOWED FIELD EDGE OF PLOWED FIELD XXXXXXXXXX X X X X X X X X X X X X X X X X X X X X X FO FO FO FO FO FO FO FO ELECTRICTRANSFORMER ELECTRIC TW ELEV. 921.2 BW ELEV. 918.07 TW ELEV. 930.8BW ELEV. 927.1 918 925 930 935 940 945 950 950 900 915 915910 905 900 895 890 885 880 920 915 890 890 895 900 905 910 915 920 925 930 935 940 945 945 940 935 930 925 920 925925929 920915910905900895890 89 5 90 0 900 925 920 915 910 945 885 875 911 91191091 0 910 910905910 910915 915920910918947952 89 0 89 5 900 915920925924930915 920925 930935895900 905 91091591592092091 0 91 5 SSMHRE=894.8 WSOEMWSOSSMHRE=891.1 SSMHRE=903.6 X915 910 905 900 895 890920 915 910 905 900 895>II I I TOP 12IN CMPRE=905.5 TOPRE=904.9 >>PIPE SSMH RE=909.0 IE=883.6 SSMH RE=915.2 IE=884.1 15" RCP BM-2 (TNH)913.82 BM-1 (TNH)921.32 15" RCP 15" RCPMETAL COVERTOP=912.8IE=910.3(NW)IE=909.0(S) 15" RCP METALCOVERTOP=914.2 IE=910.3(NW) RIPRAP CBRE=913.9IE=909.8 CBRE=913.9IE=909.0 (NW)IE=908.8 (NE)IE=906.0 (SE, SW) CBRE=909.0IE=901.3 CBRE=935.9IE=931.4(S)IE=931.3(W) CBRE=936.0IE=931.8 CBRE=925.0IE=919.4 CBRE=924.8IE=920.7 15" RCP 15" RCP 15" RCP 18" RCP 15" RCP 18" RCP 12" RCP >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> 21" RCP PIPE FULLY PLUGGED UE UE UE UE UE UE UE UE UE UE UE UE UE UE UE UE UE UE UE UE UE U E UE IP ILLEGIBLE B9 B-3 B-2B-1 B-4 B-5 B-6 B-7 B-8 B-9 B-10 B-12B-11 B-13 B-14 B-15 B-16 B-17 B-18 B-19 B-20 B-21B-22 B-23B-24 B-25 B-26 B-27 B-28 B-29 B-30 B-31 B-32 CB PM (D) HM (B) HM (B) HM (B) HM (B) GL (B/D) GL (B/D) NE3 (B) NE3 (B) KB (B) KB (B) KB (B) KC2 (B) KC2 (B) KC2 (B) KC2 (B) KC2 (B) KB (B) KD2 (B) KD2 (B) KD2 (B) KD2 (B) HM (B) KC2 (B) CS (C/D) KC (B) HM (B) KD2 (B) KE2 (B) KE2 (B) TB (B) ND3 (B) NE3 (B)KB2 (B) HM (B) KF (B) ND3 (B) KB (B) KD2 (B) KB2 (B) KC2 (B) WETLA N D # 6 WETLAND #2 WETLAND #1 WETLAND #7 WETLAND #8 WETLAN D # 9 WETLAND #3 WETLAND #5 WETL A N D # 4 WETLAND #10 20' CITY WETLAND BUFFER 30' CITY WETLAND BUFFER SETBACK HIGHWAY EASEMENT PER BOOK 150 OF DEEDS, PG. 313 HIGHWAY EASEMENT PER BOOK 150 OF DEEDS, PG. 307 18" RCP 45' PERMANENT D&U EASEMENT PER MNDOT R/W PLAT NO. 10-19 (DOC.NO. A399301) HILLSIDE OAKS N42°43'42" W 58.08 N00°43'25" E 9.76 S00 ° 4 3 ' 2 5 " W 12.9 5 S47°01'24"W 49.70 B1811 925 930 935 94 0 MNDOT WETLAND M09 MNDOT WETLAND M10 NE3 (B) KF (B)KB (B) HM (B) KC2 (B) GL (B/D)09.509.506.506.520.5820.4420.6809.505.520' CITY WETLAND BUFFER 30' CITY WETLAND BUFFER SETBACK (TYP) 20' CITY WETLAND BUFFER 20' CITY WETLAND BUFFER 20' CITY WETLAND BUFFER 30' CITY WETLAND BUFFER SETBACK 30' CITY WETLAND BUFFER SETBACK 30' CITY WETLAND BUFFER SETBACK 30' CITY WETLAND BUFFER SETBACK 30' CITY WETLAND BUFFER SETBACK 30' CITY WETLAND BUFFER SETBACK 20' CITY WETLAND BUFFER 20' CITY WETLAND BUFFER 30' CITY WETLAND BUFFER SETBACK 20' CITY WETLAND BUFFER 30' CITY WETLAND BUFFER SETBACK 20' CITY WETLAND BUFFER29.127.026.926.327.09.4S Southeast 9.3S South 9.2S Northeast Woods 9.1S East Woods10S Southwest 8S South - Central 7S West Woods 6S West - North 5S Northwest 2S Wetland 2 3S Wetland 1 4S Wetland 8 1S To Lyman - NE 0S To Powers - North 6oS Offsite West - North 7oS Offsite West - South 00S South to Powers 5oS From Lyman 5aS To Lyman - North 4oS From Powers WETLAND 2 OUTLET WEIR WETLAND 1 OUTLET WEIR WETLAND 3 OUTLET WEIR 7P West - South 8P Wetland 4 2P Wetland 2 3P Wetland 1 4P Powers Culvert 3P Wetland 3 1R Lake Susan Drainage 8R South Drainage 3R Lower Wetland 6 6R Bluff Creek Drainage 5R Upper Wetland 6 9R Wetland 4 Channel 4R Southwest Drainage 16oS EAST OFFSITE 29oS NORTH OFFSITE 36oS SOUTHWEST OFFSITE Landform and Site to Finish are registered service marks of Landform Professional Services, LLC.R R in collaboration with: LEVEL 7 DEVELOPMENT RSP ARCHITECTS ∂ WELSH AND COLLIERS AVIENDA ∂ Chanhassen, MN Stormwater Management Plan ∂ 08.23.2018 EXISTING DRAINAGE NORTH 0 200 400 LEGEND PRIMARY DRAINAGE BOUNDARY SECONDARY DRAINAGE BOUNDARY TERTIARY DRAINAGE BOUNDARY TIME OF CONCENTRATION PATH SOIL BOUNDARY 1S Name SUBCATCHMENT LABEL SOILS MAP UNIT SYMBOL (SOIL TYPE)KD2 (B) 1P Name SUBCATCHMENT LABEL DRAINAGE DIRECTION 0S To Powers - North 00S To Powers - South 1S To Lyman - NE 2S Wetland 2 3S Wetland 1 4oS From Powers 4S Wetland 8 16oS East Offsite 61S Powers (from SRF) 62S NE Ramp (from SRF) 63S TH 212 (from SRF) 64S Englewood (from SRF) 65S LYMLP (from SRF) 66S N54 (from SRF) 67-1S Fresh MDW Subcatch 1 (from SRF) 67-2S Fresh MDW Subcatch 2 (from SRF) 67-3S Fresh MDW Subcatch 3 (from SRF) 68S M10 1R Lake Susan Drainage 61R NERDITCH 62R L42 2P Wetland 2 3P Basin 3 (Wetland 1) 4P Powers Culvert 61P Englewood Pond 65P Fresh MDW 68P East MNDOT M10 Wetland Routing Diagram for Avienda - Existing Prepared by LANDFORM, Printed 8/23/2018 HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Subcat Reach Pond Link MSE 24-hr 3 1-Year A Rainfall=2.47"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 2HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Time span=0.00-360.00 hrs, dt=0.01 hrs, 36001 points Runoff by SCS TR-20 method, UH=SCS, Weighted-Q Reach routing by Dyn-Stor-Ind method - Pond routing by Dyn-Stor-Ind method Runoff Area=27,760 sf 0.00% Impervious Runoff Depth=0.13"Subcatchment 0S: To Powers - North Flow Length=212' Tc=6.5 min CN=58 Runoff=0.04 cfs 0.007 af Runoff Area=29,120 sf 0.00% Impervious Runoff Depth=0.45"Subcatchment 00S: To Powers - South Flow Length=198' Tc=7.2 min CN=WQ Runoff=0.47 cfs 0.025 af Runoff Area=90,310 sf 0.00% Impervious Runoff Depth=0.13"Subcatchment 1S: To Lyman - NE Flow Length=122' Slope=0.1600 '/' Tc=5.0 min CN=58 Runoff=0.12 cfs 0.022 af Runoff Area=687,520 sf 4.63% Impervious Runoff Depth=0.93"Subcatchment 2S: Wetland 2 Flow Length=1,087' Tc=26.4 min CN=WQ Runoff=13.13 cfs 1.222 af Runoff Area=560,145 sf 0.00% Impervious Runoff Depth=0.85"Subcatchment 3S: Wetland 1 Flow Length=585' Tc=16.8 min CN=WQ Runoff=12.66 cfs 0.911 af Runoff Area=35,675 sf 0.00% Impervious Runoff Depth=0.77"Subcatchment 4oS: From Powers Flow Length=320' Tc=6.0 min CN=78 Runoff=1.15 cfs 0.052 af Runoff Area=232,825 sf 0.00% Impervious Runoff Depth=0.77"Subcatchment 4S: Wetland 8 Flow Length=472' Tc=18.3 min CN=WQ Runoff=4.60 cfs 0.344 af Runoff Area=4,669 sf 0.00% Impervious Runoff Depth=0.13"Subcatchment 16oS: East Offsite Tc=10.0 min CN=58 Runoff=0.01 cfs 0.001 af Runoff Area=9.400 ac 0.00% Impervious Runoff Depth=1.29"Subcatchment 61S: Powers (from SRF) Tc=9.0 min CN=87 Runoff=19.80 cfs 1.007 af Runoff Area=4.200 ac 0.00% Impervious Runoff Depth=0.92"Subcatchment 62S: NE Ramp (from SRF) Tc=8.0 min CN=81 Runoff=6.52 cfs 0.322 af Runoff Area=8.200 ac 0.00% Impervious Runoff Depth=1.29"Subcatchment 63S: TH 212 (from SRF) Tc=12.0 min CN=87 Runoff=15.22 cfs 0.879 af Runoff Area=7.800 ac 0.00% Impervious Runoff Depth=0.72"Subcatchment 64S: Englewood (from SRF) Tc=10.0 min CN=77 Runoff=8.39 cfs 0.469 af Runoff Area=6.400 ac 0.00% Impervious Runoff Depth=1.03"Subcatchment 65S: LYMLP (from SRF) Tc=15.0 min CN=83 Runoff=8.53 cfs 0.551 af Runoff Area=1.900 ac 0.00% Impervious Runoff Depth=1.84"Subcatchment 66S: N54 (from SRF) Tc=7.6 min CN=94 Runoff=5.76 cfs 0.291 af Runoff Area=0.440 ac 100.00% Impervious Runoff Depth=2.47"Subcatchment 67-1S: Fresh MDW Tc=7.0 min CN=100 Runoff=1.57 cfs 0.091 af Runoff Area=1.100 ac 0.00% Impervious Runoff Depth=0.48"Subcatchment 67-2S: Fresh MDW Subcatch Tc=7.0 min CN=71 Runoff=0.82 cfs 0.044 af MSE 24-hr 3 1-Year A Rainfall=2.47"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 3HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Runoff Area=2.300 ac 0.00% Impervious Runoff Depth=0.00"Subcatchment 67-3S: Fresh MDW Subcatch Tc=83.0 min CN=10 Runoff=0.00 cfs 0.000 af Runoff Area=17.000 ac 0.00% Impervious Runoff Depth=0.59"Subcatchment 68S: M10 Tc=10.0 min CN=74 Runoff=14.34 cfs 0.838 af Inflow=11.54 cfs 2.130 afReach 1R: Lake Susan Drainage Outflow=11.54 cfs 2.130 af Avg. Flow Depth=0.86' Max Vel=2.43 fps Inflow=24.28 cfs 3.138 afReach 61R: NERDITCH n=0.035 L=545.0' S=0.0055 '/' Capacity=737.08 cfs Outflow=22.01 cfs 3.138 af Avg. Flow Depth=0.85' Max Vel=5.12 fps Inflow=6.52 cfs 0.322 afReach 62R: L42 24.0" Round Pipe n=0.012 L=200.0' S=0.0050 '/' Capacity=17.33 cfs Outflow=6.48 cfs 0.322 af Peak Elev=909.61' Storage=3,534 cf Inflow=13.13 cfs 1.222 afPond 2P: Wetland 2 Outflow=12.58 cfs 1.222 af Peak Elev=906.89' Storage=39,109 cf Inflow=21.83 cfs 2.133 afPond 3P: Basin 3 (Wetland 1) Outflow=9.96 cfs 1.679 af Peak Elev=896.90' Storage=187 cf Inflow=11.38 cfs 2.076 afPond 4P: Powers Culvert 54.0" Round Culvert n=0.013 L=191.0' S=0.0062 '/' Outflow=11.38 cfs 2.076 af Peak Elev=892.83' Storage=117,532 cf Inflow=51.29 cfs 4.808 afPond 61P: Englewood Pond Outflow=4.65 cfs 4.754 af Peak Elev=897.10' Storage=21,884 cf Inflow=14.73 cfs 0.977 afPond 65P: Fresh MDW Outflow=3.09 cfs 0.822 af Peak Elev=891.39' Storage=222,220 cf Inflow=15.36 cfs 6.414 afPond 68P: East MNDOT M10 Wetland Outflow=0.53 cfs 3.109 af Total Runoff Area = 97.033 ac Runoff Volume = 7.077 af Average Runoff Depth = 0.88" 98.79% Pervious = 95.862 ac 1.21% Impervious = 1.170 ac MSE 24-hr 3 1-Year A Rainfall=2.47"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 4HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 0S: To Powers - North Runoff = 0.04 cfs @ 12.35 hrs, Volume= 0.007 af, Depth= 0.13" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MSE 24-hr 3 1-Year A Rainfall=2.47" Area (sf) CN Description 27,760 58 Meadow, non-grazed, HSG B 27,760 58 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 5.6 75 0.0530 0.22 Sheet Flow, Grass: Short n= 0.150 P2= 2.87" 0.9 137 0.1240 2.46 Shallow Concentrated Flow, Short Grass Pasture Kv= 7.0 fps 6.5 212 Total Subcatchment 0S: To Powers - North Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.04 0.038 0.036 0.034 0.032 0.03 0.028 0.026 0.024 0.022 0.02 0.018 0.016 0.014 0.012 0.01 0.008 0.006 0.004 0.002 0 MSE 24-hr 3 1-Year A Rainfall=2.47" Runoff Area=27,760 sf Runoff Volume=0.007 af Runoff Depth=0.13" Flow Length=212' Tc=6.5 min CN=58 0.04 cfs MSE 24-hr 3 1-Year A Rainfall=2.47"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 5HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 00S: To Powers - South Runoff = 0.47 cfs @ 12.15 hrs, Volume= 0.025 af, Depth= 0.45" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MSE 24-hr 3 1-Year A Rainfall=2.47" Area (sf) CN Description 14,560 55 Woods, Good, HSG B 14,560 79 Pasture/grassland/range, Poor, HSG B 29,120 Weighted Average 29,120 67 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 4.3 38 0.0200 0.15 Sheet Flow, Range n= 0.130 P2= 2.87" 2.9 160 0.0170 0.91 Shallow Concentrated Flow, Short Grass Pasture Kv= 7.0 fps 7.2 198 Total Subcatchment 00S: To Powers - South Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.5 0.45 0.4 0.35 0.3 0.25 0.2 0.15 0.1 0.05 0 MSE 24-hr 3 1-Year A Rainfall=2.47" Runoff Area=29,120 sf Runoff Volume=0.025 af Runoff Depth=0.45" Flow Length=198' Tc=7.2 min CN=WQ 0.47 cfs MSE 24-hr 3 1-Year A Rainfall=2.47"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 6HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 1S: To Lyman - NE Runoff = 0.12 cfs @ 12.34 hrs, Volume= 0.022 af, Depth= 0.13" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MSE 24-hr 3 1-Year A Rainfall=2.47" Area (sf) CN Description 90,310 58 Meadow, non-grazed, HSG B 90,310 58 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 2.6 50 0.1600 0.32 Sheet Flow, Grass: Short n= 0.150 P2= 2.87" 0.4 72 0.1600 2.80 Shallow Concentrated Flow, Short Grass Pasture Kv= 7.0 fps 2.0 Direct Entry, Make up to 5 Minutes 5.0 122 Total Subcatchment 1S: To Lyman - NE Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.13 0.12 0.11 0.1 0.09 0.08 0.07 0.06 0.05 0.04 0.03 0.02 0.01 0 MSE 24-hr 3 1-Year A Rainfall=2.47" Runoff Area=90,310 sf Runoff Volume=0.022 af Runoff Depth=0.13" Flow Length=122' Slope=0.1600 '/' Tc=5.0 min CN=58 0.12 cfs MSE 24-hr 3 1-Year A Rainfall=2.47"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 7HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 2S: Wetland 2 Runoff = 13.13 cfs @ 12.40 hrs, Volume= 1.222 af, Depth= 0.93" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MSE 24-hr 3 1-Year A Rainfall=2.47" Area (sf) CN Description 31,810 98 Water Surface, HSG D * 70,790 96 Wetland 79,915 79 Pasture/grassland/range, Poor, HSG B * 86,270 61 Grasses, Good, HSG B 418,735 79 Pasture/grassland/range, Poor, HSG B 687,520 Weighted Average 655,710 78 95.37% Pervious Area 31,810 98 4.63% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 9.2 135 0.0370 0.25 Sheet Flow, Range n= 0.130 P2= 2.87" 0.4 60 0.1310 2.53 Shallow Concentrated Flow, Short Grass Pasture Kv= 7.0 fps 0.1 46 0.6500 5.64 Shallow Concentrated Flow, Short Grass Pasture Kv= 7.0 fps 1.4 90 0.0220 1.04 Shallow Concentrated Flow, Short Grass Pasture Kv= 7.0 fps 0.9 52 0.0190 0.96 Shallow Concentrated Flow, Short Grass Pasture Kv= 7.0 fps 1.3 94 0.0320 1.25 Shallow Concentrated Flow, Short Grass Pasture Kv= 7.0 fps 2.3 210 0.0480 1.53 Shallow Concentrated Flow, Short Grass Pasture Kv= 7.0 fps 0.4 50 0.0200 2.12 Shallow Concentrated Flow, Wetland Grassed Waterway Kv= 15.0 fps 10.4 350 0.0014 0.56 Shallow Concentrated Flow, Wetland Grassed Waterway Kv= 15.0 fps 26.4 1,087 Total MSE 24-hr 3 1-Year A Rainfall=2.47"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 8HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Subcatchment 2S: Wetland 2 Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 MSE 24-hr 3 1-Year A Rainfall=2.47" Runoff Area=687,520 sf Runoff Volume=1.222 af Runoff Depth=0.93" Flow Length=1,087' Tc=26.4 min CN=WQ 13.13 cfs MSE 24-hr 3 1-Year A Rainfall=2.47"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 9HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 3S: Wetland 1 Runoff = 12.66 cfs @ 12.26 hrs, Volume= 0.911 af, Depth= 0.85" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MSE 24-hr 3 1-Year A Rainfall=2.47" Area (sf) CN Description * 56,025 96 Wetland, HSG D 55,045 79 Pasture/grassland/range, Poor, HSG B 62,080 55 Woods, Good, HSG B 349,085 79 Pasture/grassland/range, Poor, HSG B 37,910 77 Woods, Good, HSG D 560,145 Weighted Average 560,145 78 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 9.2 100 0.0200 0.18 Sheet Flow, Range n= 0.130 P2= 2.87" 7.2 438 0.0210 1.01 Shallow Concentrated Flow, Short Grass Pasture Kv= 7.0 fps 0.4 47 0.0150 1.84 Shallow Concentrated Flow, Wetland Grassed Waterway Kv= 15.0 fps 16.8 585 Total Subcatchment 3S: Wetland 1 Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 MSE 24-hr 3 1-Year A Rainfall=2.47" Runoff Area=560,145 sf Runoff Volume=0.911 af Runoff Depth=0.85" Flow Length=585' Tc=16.8 min CN=WQ 12.66 cfs MSE 24-hr 3 1-Year A Rainfall=2.47"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 10HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 4oS: From Powers Runoff = 1.15 cfs @ 12.14 hrs, Volume= 0.052 af, Depth= 0.77" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MSE 24-hr 3 1-Year A Rainfall=2.47" Area (sf) CN Description 35,675 78 Meadow, non-grazed, HSG D 35,675 78 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 3.5 75 0.1670 0.36 Sheet Flow, Grass: Short n= 0.150 P2= 2.87" 2.5 245 0.0550 1.64 Shallow Concentrated Flow, Short Grass Pasture Kv= 7.0 fps 6.0 320 Total Subcatchment 4oS: From Powers Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)1 0 MSE 24-hr 3 1-Year A Rainfall=2.47" Runoff Area=35,675 sf Runoff Volume=0.052 af Runoff Depth=0.77" Flow Length=320' Tc=6.0 min CN=78 1.15 cfs MSE 24-hr 3 1-Year A Rainfall=2.47"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 11HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 4S: Wetland 8 Runoff = 4.60 cfs @ 12.30 hrs, Volume= 0.344 af, Depth= 0.77" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MSE 24-hr 3 1-Year A Rainfall=2.47" Area (sf) CN Description * 2,815 96 Wetland, HSG D 15,470 55 Woods, Good, HSG B 150,205 79 Pasture/grassland/range, Poor, HSG B 37,925 79 Pasture/grassland/range, Poor, HSG B 26,410 77 Woods, Good, HSG D 232,825 Weighted Average 232,825 77 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 10.4 50 0.0350 0.08 Sheet Flow, Woods: Light underbrush n= 0.400 P2= 2.87" 4.2 50 0.0350 0.20 Sheet Flow, Range n= 0.130 P2= 2.87" 3.5 325 0.0490 1.55 Shallow Concentrated Flow, Short Grass Pasture Kv= 7.0 fps 0.2 47 0.0600 3.67 Shallow Concentrated Flow, Wetland Grassed Waterway Kv= 15.0 fps 18.3 472 Total MSE 24-hr 3 1-Year A Rainfall=2.47"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 12HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Subcatchment 4S: Wetland 8 Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)5 4 3 2 1 0 MSE 24-hr 3 1-Year A Rainfall=2.47" Runoff Area=232,825 sf Runoff Volume=0.344 af Runoff Depth=0.77" Flow Length=472' Tc=18.3 min CN=WQ 4.60 cfs MSE 24-hr 3 1-Year A Rainfall=2.47"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 13HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 16oS: East Offsite Runoff = 0.01 cfs @ 12.41 hrs, Volume= 0.001 af, Depth= 0.13" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MSE 24-hr 3 1-Year A Rainfall=2.47" Area (sf) CN Description 4,669 58 Meadow, non-grazed, HSG B 4,669 58 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 10.0 Direct Entry, Subcatchment 16oS: East Offsite Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.007 0.006 0.005 0.005 0.004 0.004 0.003 0.003 0.002 0.002 0.001 0.001 0.000 0 MSE 24-hr 3 1-Year A Rainfall=2.47" Runoff Area=4,669 sf Runoff Volume=0.001 af Runoff Depth=0.13" Tc=10.0 min CN=58 0.01 cfs MSE 24-hr 3 1-Year A Rainfall=2.47"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 14HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 61S: Powers (from SRF) Runoff = 19.80 cfs @ 12.17 hrs, Volume= 1.007 af, Depth= 1.29" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MSE 24-hr 3 1-Year A Rainfall=2.47" Area (ac) CN Description * 9.400 87 Weighted 9.400 87 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 9.0 Direct Entry, Subcatchment 61S: Powers (from SRF) Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 MSE 24-hr 3 1-Year A Rainfall=2.47" Runoff Area=9.400 ac Runoff Volume=1.007 af Runoff Depth=1.29" Tc=9.0 min CN=87 19.80 cfs MSE 24-hr 3 1-Year A Rainfall=2.47"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 15HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 62S: NE Ramp (from SRF) Runoff = 6.52 cfs @ 12.16 hrs, Volume= 0.322 af, Depth= 0.92" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MSE 24-hr 3 1-Year A Rainfall=2.47" Area (ac) CN Description * 4.200 81 Weighted 4.200 81 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 8.0 Direct Entry, Subcatchment 62S: NE Ramp (from SRF) Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)7 6 5 4 3 2 1 0 MSE 24-hr 3 1-Year A Rainfall=2.47" Runoff Area=4.200 ac Runoff Volume=0.322 af Runoff Depth=0.92" Tc=8.0 min CN=81 6.52 cfs MSE 24-hr 3 1-Year A Rainfall=2.47"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 16HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 63S: TH 212 (from SRF) Runoff = 15.22 cfs @ 12.20 hrs, Volume= 0.879 af, Depth= 1.29" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MSE 24-hr 3 1-Year A Rainfall=2.47" Area (ac) CN Description * 8.200 87 Weighted 8.200 87 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 12.0 Direct Entry, Subcatchment 63S: TH 212 (from SRF) Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 MSE 24-hr 3 1-Year A Rainfall=2.47" Runoff Area=8.200 ac Runoff Volume=0.879 af Runoff Depth=1.29" Tc=12.0 min CN=87 15.22 cfs MSE 24-hr 3 1-Year A Rainfall=2.47"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 17HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 64S: Englewood (from SRF) Runoff = 8.39 cfs @ 12.19 hrs, Volume= 0.469 af, Depth= 0.72" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MSE 24-hr 3 1-Year A Rainfall=2.47" Area (ac) CN Description * 7.800 77 Weighted 7.800 77 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 10.0 Direct Entry, Subcatchment 64S: Englewood (from SRF) Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)9 8 7 6 5 4 3 2 1 0 MSE 24-hr 3 1-Year A Rainfall=2.47" Runoff Area=7.800 ac Runoff Volume=0.469 af Runoff Depth=0.72" Tc=10.0 min CN=77 8.39 cfs MSE 24-hr 3 1-Year A Rainfall=2.47"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 18HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 65S: LYMLP (from SRF) Runoff = 8.53 cfs @ 12.24 hrs, Volume= 0.551 af, Depth= 1.03" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MSE 24-hr 3 1-Year A Rainfall=2.47" Area (ac) CN Description * 6.400 83 Weighted 6.400 83 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 15.0 Direct Entry, Subcatchment 65S: LYMLP (from SRF) Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)9 8 7 6 5 4 3 2 1 0 MSE 24-hr 3 1-Year A Rainfall=2.47" Runoff Area=6.400 ac Runoff Volume=0.551 af Runoff Depth=1.03" Tc=15.0 min CN=83 8.53 cfs MSE 24-hr 3 1-Year A Rainfall=2.47"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 19HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 66S: N54 (from SRF) Runoff = 5.76 cfs @ 12.15 hrs, Volume= 0.291 af, Depth= 1.84" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MSE 24-hr 3 1-Year A Rainfall=2.47" Area (ac) CN Description * 1.900 94 Weighted 1.900 94 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 7.6 Direct Entry, Subcatchment 66S: N54 (from SRF) Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)6 5 4 3 2 1 0 MSE 24-hr 3 1-Year A Rainfall=2.47" Runoff Area=1.900 ac Runoff Volume=0.291 af Runoff Depth=1.84" Tc=7.6 min CN=94 5.76 cfs MSE 24-hr 3 1-Year A Rainfall=2.47"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 20HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 67-1S: Fresh MDW Subcatch 1 (from SRF) Runoff = 1.57 cfs @ 12.14 hrs, Volume= 0.091 af, Depth= 2.47" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MSE 24-hr 3 1-Year A Rainfall=2.47" Area (ac) CN Description * 0.440 100 Weighted 0.440 100 100.00% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 7.0 Direct Entry, Subcatchment 67-1S: Fresh MDW Subcatch 1 (from SRF) Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)1 0 MSE 24-hr 3 1-Year A Rainfall=2.47" Runoff Area=0.440 ac Runoff Volume=0.091 af Runoff Depth=2.47" Tc=7.0 min CN=100 1.57 cfs MSE 24-hr 3 1-Year A Rainfall=2.47"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 21HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 67-2S: Fresh MDW Subcatch 2 (from SRF) Runoff = 0.82 cfs @ 12.16 hrs, Volume= 0.044 af, Depth= 0.48" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MSE 24-hr 3 1-Year A Rainfall=2.47" Area (ac) CN Description * 1.100 71 Weighted 1.100 71 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 7.0 Direct Entry, Subcatchment 67-2S: Fresh MDW Subcatch 2 (from SRF) Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.9 0.85 0.8 0.75 0.7 0.65 0.6 0.55 0.5 0.45 0.4 0.35 0.3 0.25 0.2 0.15 0.1 0.05 0 MSE 24-hr 3 1-Year A Rainfall=2.47" Runoff Area=1.100 ac Runoff Volume=0.044 af Runoff Depth=0.48" Tc=7.0 min CN=71 0.82 cfs MSE 24-hr 3 1-Year A Rainfall=2.47"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 22HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 67-3S: Fresh MDW Subcatch 3 (from SRF) [45] Hint: Runoff=Zero Runoff = 0.00 cfs @ 0.00 hrs, Volume= 0.000 af, Depth= 0.00" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MSE 24-hr 3 1-Year A Rainfall=2.47" Area (ac) CN Description * 2.300 10 Weighted 2.300 10 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 83.0 Direct Entry, Subcatchment 67-3S: Fresh MDW Subcatch 3 (from SRF) Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)1 0 MSE 24-hr 3 1-Year A Rainfall=2.47" Runoff Area=2.300 ac Runoff Volume=0.000 af Runoff Depth=0.00" Tc=83.0 min CN=10 0.00 cfs MSE 24-hr 3 1-Year A Rainfall=2.47"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 23HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 68S: M10 Runoff = 14.34 cfs @ 12.19 hrs, Volume= 0.838 af, Depth= 0.59" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MSE 24-hr 3 1-Year A Rainfall=2.47" Area (ac) CN Description * 17.000 74 Weighted 17.000 74 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 10.0 Direct Entry, Subcatchment 68S: M10 Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 MSE 24-hr 3 1-Year A Rainfall=2.47" Runoff Area=17.000 ac Runoff Volume=0.838 af Runoff Depth=0.59" Tc=10.0 min CN=74 14.34 cfs MSE 24-hr 3 1-Year A Rainfall=2.47"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 24HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Reach 1R: Lake Susan Drainage [40] Hint: Not Described (Outflow=Inflow) Inflow Area = 38.293 ac, 1.91% Impervious, Inflow Depth = 0.67" for 1-Year A event Inflow = 11.54 cfs @ 12.75 hrs, Volume= 2.130 af Outflow = 11.54 cfs @ 12.75 hrs, Volume= 2.130 af, Atten= 0%, Lag= 0.0 min Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Reach 1R: Lake Susan Drainage Inflow Outflow Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)12 11 10 9 8 7 6 5 4 3 2 1 0 Inflow Area=38.293 ac 11.54 cfs 11.54 cfs MSE 24-hr 3 1-Year A Rainfall=2.47"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 25HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Reach 61R: NERDITCH Inflow Area = 47.693 ac, 1.53% Impervious, Inflow Depth = 0.79" for 1-Year A event Inflow = 24.28 cfs @ 12.17 hrs, Volume= 3.138 af Outflow = 22.01 cfs @ 12.21 hrs, Volume= 3.138 af, Atten= 9%, Lag= 2.4 min Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Max. Velocity= 2.43 fps, Min. Travel Time= 3.7 min Avg. Velocity = 0.45 fps, Avg. Travel Time= 20.4 min Peak Storage= 4,945 cf @ 12.21 hrs Average Depth at Peak Storage= 0.86' Bank-Full Depth= 5.00' Flow Area= 115.0 sf, Capacity= 737.08 cfs 8.00' x 5.00' deep channel, n= 0.035 Side Slope Z-value= 3.0 '/' Top Width= 38.00' Length= 545.0' Slope= 0.0055 '/' Inlet Invert= 895.00', Outlet Invert= 892.00' ‡ Reach 61R: NERDITCH Inflow Outflow Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)26 24 22 20 18 16 14 12 10 8 6 4 2 0 Inflow Area=47.693 ac Avg. Flow Depth=0.86' Max Vel=2.43 fps n=0.035 L=545.0' S=0.0055 '/' Capacity=737.08 cfs 24.28 cfs 22.01 cfs MSE 24-hr 3 1-Year A Rainfall=2.47"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 26HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Stage-Area-Storage for Reach 61R: NERDITCH Elevation (feet) End-Area (sq-ft) Storage (cubic-feet) 895.00 0.0 0 895.05 0.4 222 895.10 0.8 452 895.15 1.3 691 895.20 1.7 937 895.25 2.2 1,192 895.30 2.7 1,455 895.35 3.2 1,726 895.40 3.7 2,006 895.45 4.2 2,293 895.50 4.8 2,589 895.55 5.3 2,893 895.60 5.9 3,205 895.65 6.5 3,525 895.70 7.1 3,853 895.75 7.7 4,190 895.80 8.3 4,534 895.85 9.0 4,887 895.90 9.6 5,248 895.95 10.3 5,618 896.00 11.0 5,995 896.05 11.7 6,381 896.10 12.4 6,774 896.15 13.2 7,176 896.20 13.9 7,586 896.25 14.7 8,005 896.30 15.5 8,431 896.35 16.3 8,866 896.40 17.1 9,309 896.45 17.9 9,760 896.50 18.8 10,219 896.55 19.6 10,686 896.60 20.5 11,162 896.65 21.4 11,645 896.70 22.3 12,137 896.75 23.2 12,637 896.80 24.1 13,145 896.85 25.1 13,662 896.90 26.0 14,186 896.95 27.0 14,719 897.00 28.0 15,260 897.05 29.0 15,809 897.10 30.0 16,366 897.15 31.1 16,932 897.20 32.1 17,505 897.25 33.2 18,087 897.30 34.3 18,677 897.35 35.4 19,275 897.40 36.5 19,882 897.45 37.6 20,496 897.50 38.8 21,119 897.55 39.9 21,750 Elevation (feet) End-Area (sq-ft) Storage (cubic-feet) 897.60 41.1 22,389 897.65 42.3 23,036 897.70 43.5 23,691 897.75 44.7 24,355 897.80 45.9 25,026 897.85 47.2 25,706 897.90 48.4 26,394 897.95 49.7 27,091 898.00 51.0 27,795 898.05 52.3 28,508 898.10 53.6 29,228 898.15 55.0 29,957 898.20 56.3 30,694 898.25 57.7 31,440 898.30 59.1 32,193 898.35 60.5 32,955 898.40 61.9 33,725 898.45 63.3 34,503 898.50 64.8 35,289 898.55 66.2 36,083 898.60 67.7 36,886 898.65 69.2 37,696 898.70 70.7 38,515 898.75 72.2 39,342 898.80 73.7 40,177 898.85 75.3 41,021 898.90 76.8 41,872 898.95 78.4 42,732 899.00 80.0 43,600 899.05 81.6 44,476 899.10 83.2 45,360 899.15 84.9 46,253 899.20 86.5 47,153 899.25 88.2 48,062 899.30 89.9 48,979 899.35 91.6 49,904 899.40 93.3 50,838 899.45 95.0 51,779 899.50 96.8 52,729 899.55 98.5 53,687 899.60 100.3 54,653 899.65 102.1 55,627 899.70 103.9 56,609 899.75 105.7 57,600 899.80 107.5 58,598 899.85 109.4 59,605 899.90 111.2 60,620 899.95 113.1 61,644 900.00 115.0 62,675 MSE 24-hr 3 1-Year A Rainfall=2.47"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 27HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Reach 62R: L42 [52] Hint: Inlet/Outlet conditions not evaluated Inflow Area = 4.200 ac, 0.00% Impervious, Inflow Depth = 0.92" for 1-Year A event Inflow = 6.52 cfs @ 12.16 hrs, Volume= 0.322 af Outflow = 6.48 cfs @ 12.17 hrs, Volume= 0.322 af, Atten= 1%, Lag= 0.5 min Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Max. Velocity= 5.12 fps, Min. Travel Time= 0.7 min Avg. Velocity = 1.64 fps, Avg. Travel Time= 2.0 min Peak Storage= 253 cf @ 12.17 hrs Average Depth at Peak Storage= 0.85' Bank-Full Depth= 2.00' Flow Area= 3.1 sf, Capacity= 17.33 cfs 24.0" Round Pipe n= 0.012 Length= 200.0' Slope= 0.0050 '/' Inlet Invert= 893.00', Outlet Invert= 892.00' Reach 62R: L42 Inflow Outflow Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)7 6 5 4 3 2 1 0 Inflow Area=4.200 ac Avg. Flow Depth=0.85' Max Vel=5.12 fps 24.0" Round Pipe n=0.012 L=200.0' S=0.0050 '/' Capacity=17.33 cfs 6.52 cfs 6.48 cfs MSE 24-hr 3 1-Year A Rainfall=2.47"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 28HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Stage-Area-Storage for Reach 62R: L42 Elevation (feet) End-Area (sq-ft) Storage (cubic-feet) 893.00 0.0 0 893.02 0.0 1 893.04 0.0 3 893.06 0.0 5 893.08 0.0 8 893.10 0.1 12 893.12 0.1 15 893.14 0.1 19 893.16 0.1 24 893.18 0.1 28 893.20 0.2 33 893.22 0.2 38 893.24 0.2 43 893.26 0.2 48 893.28 0.3 53 893.30 0.3 59 893.32 0.3 65 893.34 0.4 71 893.36 0.4 77 893.38 0.4 83 893.40 0.4 89 893.42 0.5 96 893.44 0.5 102 893.46 0.5 109 893.48 0.6 116 893.50 0.6 123 893.52 0.6 130 893.54 0.7 137 893.56 0.7 144 893.58 0.8 151 893.60 0.8 159 893.62 0.8 166 893.64 0.9 173 893.66 0.9 181 893.68 0.9 188 893.70 1.0 196 893.72 1.0 204 893.74 1.1 211 893.76 1.1 219 893.78 1.1 227 893.80 1.2 235 893.82 1.2 243 893.84 1.3 250 893.86 1.3 258 893.88 1.3 266 893.90 1.4 274 893.92 1.4 282 893.94 1.5 290 893.96 1.5 298 893.98 1.5 306 894.00 1.6 314 894.02 1.6 322 Elevation (feet) End-Area (sq-ft) Storage (cubic-feet) 894.04 1.7 330 894.06 1.7 338 894.08 1.7 346 894.10 1.8 354 894.12 1.8 362 894.14 1.8 370 894.16 1.9 378 894.18 1.9 386 894.20 2.0 394 894.22 2.0 401 894.24 2.0 409 894.26 2.1 417 894.28 2.1 425 894.30 2.2 432 894.32 2.2 440 894.34 2.2 447 894.36 2.3 455 894.38 2.3 462 894.40 2.3 470 894.42 2.4 477 894.44 2.4 484 894.46 2.5 491 894.48 2.5 499 894.50 2.5 505 894.52 2.6 512 894.54 2.6 519 894.56 2.6 526 894.58 2.7 532 894.60 2.7 539 894.62 2.7 545 894.64 2.8 551 894.66 2.8 557 894.68 2.8 563 894.70 2.8 569 894.72 2.9 575 894.74 2.9 580 894.76 2.9 586 894.78 3.0 591 894.80 3.0 596 894.82 3.0 600 894.84 3.0 605 894.86 3.0 609 894.88 3.1 613 894.90 3.1 617 894.92 3.1 620 894.94 3.1 623 894.96 3.1 625 894.98 3.1 627 895.00 3.1 628 MSE 24-hr 3 1-Year A Rainfall=2.47"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 29HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Pond 2P: Wetland 2 Inflow Area = 15.783 ac, 4.63% Impervious, Inflow Depth = 0.93" for 1-Year A event Inflow = 13.13 cfs @ 12.40 hrs, Volume= 1.222 af Outflow = 12.58 cfs @ 12.46 hrs, Volume= 1.222 af, Atten= 4%, Lag= 3.4 min Primary = 12.58 cfs @ 12.46 hrs, Volume= 1.222 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 909.61' @ 12.46 hrs Surf.Area= 40,009 sf Storage= 3,534 cf Plug-Flow detention time= 8.3 min calculated for 1.222 af (100% of inflow) Center-of-Mass det. time= 8.1 min ( 835.7 - 827.6 ) Volume Invert Avail.Storage Storage Description #1 909.50' 137,271 cf Custom Stage Data (Prismatic) Listed below (Recalc) Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 909.50 25,770 0 0 910.00 92,020 29,448 29,448 911.00 123,627 107,824 137,271 Device Routing Invert Outlet Devices #1 Primary 909.50'Asymmetrical Weir, C= 3.27 Offset (feet) 0.00 45.00 95.00 196.00 241.00 301.00 Height (feet) 1.50 0.50 0.00 0.00 0.50 1.50 Primary OutFlow Max=12.57 cfs @ 12.46 hrs HW=909.61' TW=906.74' (Dynamic Tailwater) 1=Asymmetrical Weir (Weir Controls 12.57 cfs @ 0.96 fps) MSE 24-hr 3 1-Year A Rainfall=2.47"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 30HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Pond 2P: Wetland 2 Inflow Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 Inflow Area=15.783 ac Peak Elev=909.61' Storage=3,534 cf 13.13 cfs 12.58 cfs MSE 24-hr 3 1-Year A Rainfall=2.47"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 31HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Stage-Area-Storage for Pond 2P: Wetland 2 Elevation (feet) Surface (sq-ft) Storage (cubic-feet) 909.50 25,770 0 909.52 28,420 542 909.54 31,070 1,137 909.56 33,720 1,785 909.58 36,370 2,486 909.60 39,020 3,240 909.62 41,670 4,046 909.64 44,320 4,906 909.66 46,970 5,819 909.68 49,620 6,785 909.70 52,270 7,804 909.72 54,920 8,876 909.74 57,570 10,001 909.76 60,220 11,179 909.78 62,870 12,410 909.80 65,520 13,693 909.82 68,170 15,030 909.84 70,820 16,420 909.86 73,470 17,863 909.88 76,120 19,359 909.90 78,770 20,908 909.92 81,420 22,510 909.94 84,070 24,165 909.96 86,720 25,873 909.98 89,370 27,634 910.00 92,020 29,448 910.02 92,652 31,294 910.04 93,284 33,154 910.06 93,916 35,026 910.08 94,549 36,910 910.10 95,181 38,808 910.12 95,813 40,717 910.14 96,445 42,640 910.16 97,077 44,575 910.18 97,709 46,523 910.20 98,341 48,484 910.22 98,974 50,457 910.24 99,606 52,443 910.26 100,238 54,441 910.28 100,870 56,452 910.30 101,502 58,476 910.32 102,134 60,512 910.34 102,766 62,561 910.36 103,399 64,623 910.38 104,031 66,697 910.40 104,663 68,784 910.42 105,295 70,884 910.44 105,927 72,996 910.46 106,559 75,121 910.48 107,191 77,258 910.50 107,824 79,408 910.52 108,456 81,571 Elevation (feet) Surface (sq-ft) Storage (cubic-feet) 910.54 109,088 83,747 910.56 109,720 85,935 910.58 110,352 88,135 910.60 110,984 90,349 910.62 111,616 92,575 910.64 112,248 94,813 910.66 112,881 97,065 910.68 113,513 99,329 910.70 114,145 101,605 910.72 114,777 103,894 910.74 115,409 106,196 910.76 116,041 108,511 910.78 116,673 110,838 910.80 117,306 113,178 910.82 117,938 115,530 910.84 118,570 117,895 910.86 119,202 120,273 910.88 119,834 122,663 910.90 120,466 125,066 910.92 121,098 127,482 910.94 121,731 129,910 910.96 122,363 132,351 910.98 122,995 134,805 911.00 123,627 137,271 MSE 24-hr 3 1-Year A Rainfall=2.47"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 32HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Pond 3P: Basin 3 (Wetland 1) Inflow Area = 28.642 ac, 2.55% Impervious, Inflow Depth = 0.89" for 1-Year A event Inflow = 21.83 cfs @ 12.34 hrs, Volume= 2.133 af Outflow = 9.96 cfs @ 12.78 hrs, Volume= 1.679 af, Atten= 54%, Lag= 26.1 min Primary = 9.96 cfs @ 12.78 hrs, Volume= 1.679 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 906.89' @ 12.78 hrs Surf.Area= 58,678 sf Storage= 39,109 cf Plug-Flow detention time= 238.2 min calculated for 1.679 af (79% of inflow) Center-of-Mass det. time= 166.0 min ( 997.4 - 831.4 ) Volume Invert Avail.Storage Storage Description #1 905.50' 251,588 cf Custom Stage Data (Prismatic) Listed below (Recalc) Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 905.50 0 0 0 906.00 18,685 4,671 4,671 907.00 63,607 41,146 45,817 908.00 100,875 82,241 128,058 909.00 146,184 123,530 251,588 Device Routing Invert Outlet Devices #1 Primary 906.50'Asymmetrical Weir, C= 3.27 Offset (feet) 0.00 28.00 115.00 135.00 155.00 184.00 204.00 Height (feet) 2.50 1.50 0.50 0.00 0.50 1.50 2.50 Primary OutFlow Max=9.96 cfs @ 12.78 hrs HW=906.89' TW=896.90' (Dynamic Tailwater) 1=Asymmetrical Weir (Weir Controls 9.96 cfs @ 0.82 fps) MSE 24-hr 3 1-Year A Rainfall=2.47"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 33HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Pond 3P: Basin 3 (Wetland 1) Inflow Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 Inflow Area=28.642 ac Peak Elev=906.89' Storage=39,109 cf 21.83 cfs 9.96 cfs MSE 24-hr 3 1-Year A Rainfall=2.47"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 34HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Stage-Area-Storage for Pond 3P: Basin 3 (Wetland 1) Elevation (feet) Surface (sq-ft) Storage (cubic-feet) 905.50 0 0 905.55 1,868 47 905.60 3,737 187 905.65 5,605 420 905.70 7,474 747 905.75 9,343 1,168 905.80 11,211 1,682 905.85 13,080 2,289 905.90 14,948 2,990 905.95 16,817 3,784 906.00 18,685 4,671 906.05 20,931 5,662 906.10 23,177 6,764 906.15 25,423 7,979 906.20 27,669 9,307 906.25 29,916 10,746 906.30 32,162 12,298 906.35 34,408 13,962 906.40 36,654 15,739 906.45 38,900 17,628 906.50 41,146 19,629 906.55 43,392 21,742 906.60 45,638 23,968 906.65 47,884 26,306 906.70 50,130 28,757 906.75 52,377 31,319 906.80 54,623 33,994 906.85 56,869 36,782 906.90 59,115 39,681 906.95 61,361 42,693 907.00 63,607 45,817 907.05 65,470 49,044 907.10 67,334 52,364 907.15 69,197 55,778 907.20 71,061 59,284 907.25 72,924 62,884 907.30 74,787 66,576 907.35 76,651 70,362 907.40 78,514 74,241 907.45 80,378 78,214 907.50 82,241 82,279 907.55 84,104 86,438 907.60 85,968 90,690 907.65 87,831 95,035 907.70 89,695 99,473 907.75 91,558 104,004 907.80 93,421 108,629 907.85 95,285 113,346 907.90 97,148 118,157 907.95 99,012 123,061 908.00 100,875 128,058 908.05 103,140 133,159 Elevation (feet) Surface (sq-ft) Storage (cubic-feet) 908.10 105,406 138,372 908.15 107,671 143,699 908.20 109,937 149,139 908.25 112,202 154,693 908.30 114,468 160,360 908.35 116,733 166,140 908.40 118,999 172,033 908.45 121,264 178,040 908.50 123,530 184,159 908.55 125,795 190,392 908.60 128,060 196,739 908.65 130,326 203,199 908.70 132,591 209,771 908.75 134,857 216,458 908.80 137,122 223,257 908.85 139,388 230,170 908.90 141,653 237,196 908.95 143,919 244,335 909.00 146,184 251,588 MSE 24-hr 3 1-Year A Rainfall=2.47"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 35HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Pond 4P: Powers Culvert Inflow Area = 34.806 ac, 2.10% Impervious, Inflow Depth = 0.72" for 1-Year A event Inflow = 11.38 cfs @ 12.74 hrs, Volume= 2.076 af Outflow = 11.38 cfs @ 12.75 hrs, Volume= 2.076 af, Atten= 0%, Lag= 0.4 min Primary = 11.38 cfs @ 12.75 hrs, Volume= 2.076 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 896.90' @ 12.75 hrs Surf.Area= 400 sf Storage= 187 cf Plug-Flow detention time= (not calculated: outflow precedes inflow) Center-of-Mass det. time= 0.2 min ( 967.1 - 966.9 ) Volume Invert Avail.Storage Storage Description #1 895.70' 165,537 cf Custom Stage Data (Prismatic) Listed below (Recalc) Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 895.70 1 0 0 896.00 12 2 2 898.00 877 889 891 899.00 2,760 1,819 2,709 900.00 8,250 5,505 8,214 901.00 16,910 12,580 20,794 902.00 26,632 21,771 42,565 903.00 36,506 31,569 74,134 904.00 44,700 40,603 114,737 905.00 56,900 50,800 165,537 Device Routing Invert Outlet Devices #1 Primary 895.71'54.0" Round Culvert L= 191.0' RCP, end-section conforming to fill, Ke= 0.500 Inlet / Outlet Invert= 895.71' / 894.53' S= 0.0062 '/' Cc= 0.900 n= 0.013 Concrete pipe, straight & clean, Flow Area= 15.90 sf Primary OutFlow Max=11.38 cfs @ 12.75 hrs HW=896.90' TW=0.00' (Dynamic Tailwater) 1=Culvert (Barrel Controls 11.38 cfs @ 5.10 fps) MSE 24-hr 3 1-Year A Rainfall=2.47"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 36HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Pond 4P: Powers Culvert Inflow Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)12 11 10 9 8 7 6 5 4 3 2 1 0 Inflow Area=34.806 ac Peak Elev=896.90' Storage=187 cf 54.0" Round Culvert n=0.013 L=191.0' S=0.0062 '/' 11.38 cfs 11.38 cfs MSE 24-hr 3 1-Year A Rainfall=2.47"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 37HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Stage-Area-Storage for Pond 4P: Powers Culvert Elevation (feet) Surface (sq-ft) Storage (cubic-feet) 895.70 1 0 895.80 5 0 895.90 8 1 896.00 12 2 896.10 55 5 896.20 99 13 896.30 142 25 896.40 185 41 896.50 228 62 896.60 272 87 896.70 315 116 896.80 358 150 896.90 401 188 897.00 445 230 897.10 488 277 897.20 531 328 897.30 574 383 897.40 618 443 897.50 661 507 897.60 704 575 897.70 747 647 897.80 791 724 897.90 834 805 898.00 877 891 898.10 1,065 988 898.20 1,254 1,104 898.30 1,442 1,239 898.40 1,630 1,392 898.50 1,819 1,565 898.60 2,007 1,756 898.70 2,195 1,966 898.80 2,383 2,195 898.90 2,572 2,443 899.00 2,760 2,709 899.10 3,309 3,013 899.20 3,858 3,371 899.30 4,407 3,785 899.40 4,956 4,253 899.50 5,505 4,776 899.60 6,054 5,354 899.70 6,603 5,987 899.80 7,152 6,674 899.90 7,701 7,417 900.00 8,250 8,214 900.10 9,116 9,083 900.20 9,982 10,038 900.30 10,848 11,079 900.40 11,714 12,207 900.50 12,580 13,422 900.60 13,446 14,723 900.70 14,312 16,111 900.80 15,178 17,586 Elevation (feet) Surface (sq-ft) Storage (cubic-feet) 900.90 16,044 19,147 901.00 16,910 20,794 901.10 17,882 22,534 901.20 18,854 24,371 901.30 19,827 26,305 901.40 20,799 28,336 901.50 21,771 30,465 901.60 22,743 32,690 901.70 23,715 35,013 901.80 24,688 37,433 901.90 25,660 39,951 902.00 26,632 42,565 902.10 27,619 45,278 902.20 28,607 48,089 902.30 29,594 50,999 902.40 30,582 54,008 902.50 31,569 57,116 902.60 32,556 60,322 902.70 33,544 63,627 902.80 34,531 67,031 902.90 35,519 70,533 903.00 36,506 74,134 903.10 37,325 77,826 903.20 38,145 81,600 903.30 38,964 85,455 903.40 39,784 89,392 903.50 40,603 93,412 903.60 41,422 97,513 903.70 42,242 101,696 903.80 43,061 105,961 903.90 43,881 110,308 904.00 44,700 114,737 904.10 45,920 119,268 904.20 47,140 123,921 904.30 48,360 128,696 904.40 49,580 133,593 904.50 50,800 138,612 904.60 52,020 143,753 904.70 53,240 149,016 904.80 54,460 154,401 904.90 55,680 159,908 905.00 56,900 165,537 MSE 24-hr 3 1-Year A Rainfall=2.47"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 38HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Pond 61P: Englewood Pond [62] Hint: Exceeded Reach 61R OUTLET depth by 0.59' @ 15.81 hrs [62] Hint: Exceeded Reach 62R OUTLET depth by 0.69' @ 15.27 hrs Inflow Area = 67.893 ac, 1.08% Impervious, Inflow Depth = 0.85" for 1-Year A event Inflow = 51.29 cfs @ 12.20 hrs, Volume= 4.808 af Outflow = 4.65 cfs @ 14.50 hrs, Volume= 4.754 af, Atten= 91%, Lag= 138.1 min Primary = 4.65 cfs @ 14.50 hrs, Volume= 4.754 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 892.83' @ 14.50 hrs Surf.Area= 145,330 sf Storage= 117,532 cf Plug-Flow detention time= 871.1 min calculated for 4.754 af (99% of inflow) Center-of-Mass det. time= 843.9 min ( 1,730.6 - 886.7 ) Volume Invert Avail.Storage Storage Description #1 892.00' 1,031,055 cf Custom Stage Data (Prismatic) Listed below (Recalc) Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 892.00 136,580 0 0 895.00 168,060 456,960 456,960 898.00 214,670 574,095 1,031,055 Device Routing Invert Outlet Devices #1 Primary 892.00'42.0" Round Culvert L= 29.0' RCP, square edge headwall, Ke= 0.500 Inlet / Outlet Invert= 892.00' / 891.71' S= 0.0100 '/' Cc= 0.900 n= 0.013 Concrete pipe, straight & clean, Flow Area= 9.62 sf #2 Device 1 887.63'42.0" Round Culvert L= 13.0' RCP, end-section conforming to fill, Ke= 0.500 Inlet / Outlet Invert= 887.50' / 887.63' S= -0.0100 '/' Cc= 0.900 n= 0.013 Concrete pipe, straight & clean, Flow Area= 9.62 sf Primary OutFlow Max=4.65 cfs @ 14.50 hrs HW=892.83' TW=890.66' (Dynamic Tailwater) 1=Culvert (Barrel Controls 4.65 cfs @ 3.99 fps) 2=Culvert (Passes 4.65 cfs of 42.30 cfs potential flow) MSE 24-hr 3 1-Year A Rainfall=2.47"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 39HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Pond 61P: Englewood Pond Inflow Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)55 50 45 40 35 30 25 20 15 10 5 0 Inflow Area=67.893 ac Peak Elev=892.83' Storage=117,532 cf 51.29 cfs 4.65 cfs MSE 24-hr 3 1-Year A Rainfall=2.47"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 40HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Stage-Area-Storage for Pond 61P: Englewood Pond Elevation (feet) Surface (sq-ft) Storage (cubic-feet) 892.00 136,580 0 892.10 137,629 13,710 892.20 138,679 27,526 892.30 139,728 41,446 892.40 140,777 55,471 892.50 141,827 69,602 892.60 142,876 83,837 892.70 143,925 98,177 892.80 144,975 112,622 892.90 146,024 127,172 893.00 147,073 141,827 893.10 148,123 156,586 893.20 149,172 171,451 893.30 150,221 186,421 893.40 151,271 201,495 893.50 152,320 216,675 893.60 153,369 231,959 893.70 154,419 247,349 893.80 155,468 262,843 893.90 156,517 278,442 894.00 157,567 294,147 894.10 158,616 309,956 894.20 159,665 325,870 894.30 160,715 341,889 894.40 161,764 358,013 894.50 162,813 374,242 894.60 163,863 390,575 894.70 164,912 407,014 894.80 165,961 423,558 894.90 167,011 440,206 895.00 168,060 456,960 895.10 169,614 473,844 895.20 171,167 490,883 895.30 172,721 508,077 895.40 174,275 525,427 895.50 175,828 542,932 895.60 177,382 560,593 895.70 178,936 578,408 895.80 180,489 596,380 895.90 182,043 614,506 896.00 183,597 632,788 896.10 185,150 651,226 896.20 186,704 669,818 896.30 188,258 688,566 896.40 189,811 707,470 896.50 191,365 726,529 896.60 192,919 745,743 896.70 194,472 765,112 896.80 196,026 784,637 896.90 197,580 804,318 897.00 199,133 824,153 897.10 200,687 844,144 Elevation (feet) Surface (sq-ft) Storage (cubic-feet) 897.20 202,241 864,291 897.30 203,794 884,592 897.40 205,348 905,050 897.50 206,902 925,662 897.60 208,455 946,430 897.70 210,009 967,353 897.80 211,563 988,432 897.90 213,116 1,009,666 898.00 214,670 1,031,055 MSE 24-hr 3 1-Year A Rainfall=2.47"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 41HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Pond 65P: Fresh MDW Inflow Area = 12.140 ac, 3.62% Impervious, Inflow Depth = 0.97" for 1-Year A event Inflow = 14.73 cfs @ 12.17 hrs, Volume= 0.977 af Outflow = 3.09 cfs @ 12.66 hrs, Volume= 0.822 af, Atten= 79%, Lag= 29.2 min Primary = 3.09 cfs @ 12.66 hrs, Volume= 0.822 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 897.10' @ 12.66 hrs Surf.Area= 21,208 sf Storage= 21,884 cf Plug-Flow detention time= 320.9 min calculated for 0.822 af (84% of inflow) Center-of-Mass det. time= 262.6 min ( 1,067.1 - 804.5 ) Volume Invert Avail.Storage Storage Description #1 896.00' 123,320 cf Custom Stage Data (Prismatic) Listed below (Recalc) Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 896.00 18,540 0 0 900.00 28,230 93,540 93,540 901.00 31,330 29,780 123,320 Device Routing Invert Outlet Devices #1 Primary 892.35'12.0" Round Culvert L= 35.0' RCP, square edge headwall, Ke= 0.500 Inlet / Outlet Invert= 892.00' / 892.35' S= -0.0100 '/' Cc= 0.900 n= 0.012, Flow Area= 0.79 sf #2 Device 1 896.35'33.0" Round Culvert L= 69.0' RCP, end-section conforming to fill, Ke= 0.500 Inlet / Outlet Invert= 896.35' / 896.01' S= 0.0049 '/' Cc= 0.900 n= 0.012 Concrete pipe, finished, Flow Area= 5.94 sf Primary OutFlow Max=3.09 cfs @ 12.66 hrs HW=897.10' TW=890.28' (Dynamic Tailwater) 1=Culvert (Passes 3.09 cfs of 7.80 cfs potential flow) 2=Culvert (Barrel Controls 3.09 cfs @ 3.53 fps) MSE 24-hr 3 1-Year A Rainfall=2.47"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 42HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Pond 65P: Fresh MDW Inflow Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 Inflow Area=12.140 ac Peak Elev=897.10' Storage=21,884 cf 14.73 cfs 3.09 cfs MSE 24-hr 3 1-Year A Rainfall=2.47"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 43HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Stage-Area-Storage for Pond 65P: Fresh MDW Elevation (feet) Surface (sq-ft) Storage (cubic-feet) 896.00 18,540 0 896.05 18,661 930 896.10 18,782 1,866 896.15 18,903 2,808 896.20 19,025 3,756 896.25 19,146 4,711 896.30 19,267 5,671 896.35 19,388 6,637 896.40 19,509 7,610 896.45 19,630 8,588 896.50 19,751 9,573 896.55 19,872 10,563 896.60 19,994 11,560 896.65 20,115 12,563 896.70 20,236 13,572 896.75 20,357 14,586 896.80 20,478 15,607 896.85 20,599 16,634 896.90 20,720 17,667 896.95 20,841 18,706 897.00 20,963 19,751 897.05 21,084 20,802 897.10 21,205 21,860 897.15 21,326 22,923 897.20 21,447 23,992 897.25 21,568 25,068 897.30 21,689 26,149 897.35 21,810 27,237 897.40 21,931 28,330 897.45 22,053 29,430 897.50 22,174 30,535 897.55 22,295 31,647 897.60 22,416 32,765 897.65 22,537 33,889 897.70 22,658 35,019 897.75 22,779 36,154 897.80 22,900 37,296 897.85 23,022 38,445 897.90 23,143 39,599 897.95 23,264 40,759 898.00 23,385 41,925 898.05 23,506 43,097 898.10 23,627 44,276 898.15 23,748 45,460 898.20 23,870 46,650 898.25 23,991 47,847 898.30 24,112 49,050 898.35 24,233 50,258 898.40 24,354 51,473 898.45 24,475 52,694 898.50 24,596 53,920 898.55 24,717 55,153 Elevation (feet) Surface (sq-ft) Storage (cubic-feet) 898.60 24,839 56,392 898.65 24,960 57,637 898.70 25,081 58,888 898.75 25,202 60,145 898.80 25,323 61,408 898.85 25,444 62,677 898.90 25,565 63,953 898.95 25,686 65,234 899.00 25,808 66,521 899.05 25,929 67,815 899.10 26,050 69,114 899.15 26,171 70,420 899.20 26,292 71,731 899.25 26,413 73,049 899.30 26,534 74,373 899.35 26,655 75,702 899.40 26,776 77,038 899.45 26,898 78,380 899.50 27,019 79,728 899.55 27,140 81,082 899.60 27,261 82,442 899.65 27,382 83,808 899.70 27,503 85,180 899.75 27,624 86,558 899.80 27,745 87,942 899.85 27,867 89,333 899.90 27,988 90,729 899.95 28,109 92,132 900.00 28,230 93,540 900.05 28,385 94,955 900.10 28,540 96,379 900.15 28,695 97,809 900.20 28,850 99,248 900.25 29,005 100,694 900.30 29,160 102,148 900.35 29,315 103,610 900.40 29,470 105,080 900.45 29,625 106,557 900.50 29,780 108,043 900.55 29,935 109,535 900.60 30,090 111,036 900.65 30,245 112,544 900.70 30,400 114,061 900.75 30,555 115,584 900.80 30,710 117,116 900.85 30,865 118,655 900.90 31,020 120,202 900.95 31,175 121,757 901.00 31,330 123,320 MSE 24-hr 3 1-Year A Rainfall=2.47"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 44HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Pond 68P: East MNDOT M10 Wetland Inflow Area = 97.033 ac, 1.21% Impervious, Inflow Depth > 0.79" for 1-Year A event Inflow = 15.36 cfs @ 12.19 hrs, Volume= 6.414 af Outflow = 0.53 cfs @ 34.35 hrs, Volume= 3.109 af, Atten= 97%, Lag= 1,329.4 min Primary = 0.53 cfs @ 34.35 hrs, Volume= 3.109 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 891.39' @ 34.35 hrs Surf.Area= 254,076 sf Storage= 222,220 cf Plug-Flow detention time= 4,397.1 min calculated for 3.109 af (48% of inflow) Center-of-Mass det. time= 3,734.3 min ( 5,264.2 - 1,530.0 ) Volume Invert Avail.Storage Storage Description #1 890.00' 1,574,445 cf Custom Stage Data (Prismatic) Listed below (Recalc) Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 890.00 68,660 0 0 891.00 198,790 133,725 133,725 892.00 340,250 269,520 403,245 895.00 440,550 1,171,200 1,574,445 Device Routing Invert Outlet Devices #1 Primary 890.30'18.0" Round Culvert L= 155.0' RCP, square edge headwall, Ke= 0.500 Inlet / Outlet Invert= 890.30' / 889.53' S= 0.0050 '/' Cc= 0.900 n= 0.013 Concrete pipe, straight & clean, Flow Area= 1.77 sf #2 Device 1 891.00'10.0" Vert. Orifice/Grate C= 0.600 #3 Device 2 890.50'18.0" Round Culvert L= 40.0' RCP, end-section conforming to fill, Ke= 0.500 Inlet / Outlet Invert= 890.30' / 890.50' S= -0.0050 '/' Cc= 0.900 n= 0.013 Concrete pipe, straight & clean, Flow Area= 1.77 sf Primary OutFlow Max=0.53 cfs @ 34.35 hrs HW=891.39' (Free Discharge) 1=Culvert (Passes 0.53 cfs of 3.97 cfs potential flow) 2=Orifice/Grate (Orifice Controls 0.53 cfs @ 2.13 fps) 3=Culvert (Passes 0.53 cfs of 2.80 cfs potential flow) MSE 24-hr 3 1-Year A Rainfall=2.47"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 45HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Pond 68P: East MNDOT M10 Wetland Inflow Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 Inflow Area=97.033 ac Peak Elev=891.39' Storage=222,220 cf 15.36 cfs 0.53 cfs MSE 24-hr 3 1-Year A Rainfall=2.47"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 46HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Stage-Area-Storage for Pond 68P: East MNDOT M10 Wetland Elevation (feet) Surface (sq-ft) Storage (cubic-feet) 890.00 68,660 0 890.05 75,166 3,596 890.10 81,673 7,517 890.15 88,179 11,763 890.20 94,686 16,335 890.25 101,193 21,232 890.30 107,699 26,454 890.35 114,206 32,001 890.40 120,712 37,874 890.45 127,219 44,073 890.50 133,725 50,596 890.55 140,231 57,445 890.60 146,738 64,619 890.65 153,244 72,119 890.70 159,751 79,944 890.75 166,258 88,094 890.80 172,764 96,570 890.85 179,271 105,370 890.90 185,777 114,497 890.95 192,284 123,948 891.00 198,790 133,725 891.05 205,863 143,841 891.10 212,936 154,311 891.15 220,009 165,135 891.20 227,082 176,312 891.25 234,155 187,843 891.30 241,228 199,728 891.35 248,301 211,966 891.40 255,374 224,558 891.45 262,447 237,503 891.50 269,520 250,803 891.55 276,593 264,455 891.60 283,666 278,462 891.65 290,739 292,822 891.70 297,812 307,536 891.75 304,885 322,603 891.80 311,958 338,024 891.85 319,031 353,799 891.90 326,104 369,927 891.95 333,177 386,409 892.00 340,250 403,245 892.05 341,922 420,299 892.10 343,593 437,437 892.15 345,265 454,659 892.20 346,937 471,964 892.25 348,608 489,352 892.30 350,280 506,824 892.35 351,952 524,380 892.40 353,623 542,020 892.45 355,295 559,743 892.50 356,967 577,549 892.55 358,638 595,439 Elevation (feet) Surface (sq-ft) Storage (cubic-feet) 892.60 360,310 613,413 892.65 361,982 631,470 892.70 363,653 649,611 892.75 365,325 667,836 892.80 366,997 686,144 892.85 368,668 704,535 892.90 370,340 723,010 892.95 372,012 741,569 893.00 373,683 760,212 893.05 375,355 778,938 893.10 377,027 797,747 893.15 378,698 816,640 893.20 380,370 835,617 893.25 382,042 854,677 893.30 383,713 873,821 893.35 385,385 893,049 893.40 387,057 912,360 893.45 388,728 931,754 893.50 390,400 951,233 893.55 392,072 970,794 893.60 393,743 990,440 893.65 395,415 1,010,169 893.70 397,087 1,029,981 893.75 398,758 1,049,877 893.80 400,430 1,069,857 893.85 402,102 1,089,920 893.90 403,773 1,110,067 893.95 405,445 1,130,298 894.00 407,117 1,150,612 894.05 408,788 1,171,009 894.10 410,460 1,191,491 894.15 412,132 1,212,055 894.20 413,803 1,232,704 894.25 415,475 1,253,436 894.30 417,147 1,274,251 894.35 418,818 1,295,150 894.40 420,490 1,316,133 894.45 422,162 1,337,199 894.50 423,833 1,358,349 894.55 425,505 1,379,583 894.60 427,177 1,400,900 894.65 428,848 1,422,300 894.70 430,520 1,443,785 894.75 432,192 1,465,352 894.80 433,863 1,487,004 894.85 435,535 1,508,739 894.90 437,207 1,530,557 894.95 438,878 1,552,459 895.00 440,550 1,574,445 MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 47HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Time span=0.00-360.00 hrs, dt=0.01 hrs, 36001 points Runoff by SCS TR-20 method, UH=SCS, Weighted-Q Reach routing by Dyn-Stor-Ind method - Pond routing by Dyn-Stor-Ind method Runoff Area=27,760 sf 0.00% Impervious Runoff Depth=0.00"Subcatchment 0S: To Powers - North Flow Length=212' Tc=6.5 min CN=58 Runoff=0.00 cfs 0.000 af Runoff Area=29,120 sf 0.00% Impervious Runoff Depth=0.09"Subcatchment 00S: To Powers - South Flow Length=198' Tc=7.2 min CN=WQ Runoff=0.08 cfs 0.005 af Runoff Area=90,310 sf 0.00% Impervious Runoff Depth=0.00"Subcatchment 1S: To Lyman - NE Flow Length=122' Slope=0.1600 '/' Tc=5.0 min CN=58 Runoff=0.00 cfs 0.000 af Runoff Area=687,520 sf 4.63% Impervious Runoff Depth=0.28"Subcatchment 2S: Wetland 2 Flow Length=1,087' Tc=26.4 min CN=WQ Runoff=3.45 cfs 0.364 af Runoff Area=560,145 sf 0.00% Impervious Runoff Depth=0.23"Subcatchment 3S: Wetland 1 Flow Length=585' Tc=16.8 min CN=WQ Runoff=2.84 cfs 0.249 af Runoff Area=35,675 sf 0.00% Impervious Runoff Depth=0.16"Subcatchment 4oS: From Powers Flow Length=320' Tc=6.0 min CN=78 Runoff=0.17 cfs 0.011 af Runoff Area=232,825 sf 0.00% Impervious Runoff Depth=0.17"Subcatchment 4S: Wetland 8 Flow Length=472' Tc=18.3 min CN=WQ Runoff=0.75 cfs 0.077 af Runoff Area=4,669 sf 0.00% Impervious Runoff Depth=0.00"Subcatchment 16oS: East Offsite Tc=10.0 min CN=58 Runoff=0.00 cfs 0.000 af Runoff Area=9.400 ac 0.00% Impervious Runoff Depth=0.41"Subcatchment 61S: Powers (from SRF) Tc=9.0 min CN=87 Runoff=6.20 cfs 0.325 af Runoff Area=4.200 ac 0.00% Impervious Runoff Depth=0.23"Subcatchment 62S: NE Ramp (from SRF) Tc=8.0 min CN=81 Runoff=1.34 cfs 0.079 af Runoff Area=8.200 ac 0.00% Impervious Runoff Depth=0.41"Subcatchment 63S: TH 212 (from SRF) Tc=12.0 min CN=87 Runoff=4.71 cfs 0.283 af Runoff Area=7.800 ac 0.00% Impervious Runoff Depth=0.14"Subcatchment 64S: Englewood (from SRF) Tc=10.0 min CN=77 Runoff=0.99 cfs 0.091 af Runoff Area=6.400 ac 0.00% Impervious Runoff Depth=0.28"Subcatchment 65S: LYMLP (from SRF) Tc=15.0 min CN=83 Runoff=2.01 cfs 0.149 af Runoff Area=1.900 ac 0.00% Impervious Runoff Depth=0.78"Subcatchment 66S: N54 (from SRF) Tc=7.6 min CN=94 Runoff=2.53 cfs 0.123 af Runoff Area=0.440 ac 100.00% Impervious Runoff Depth=1.32"Subcatchment 67-1S: Fresh MDW Tc=7.0 min CN=100 Runoff=0.84 cfs 0.048 af Runoff Area=1.100 ac 0.00% Impervious Runoff Depth=0.06"Subcatchment 67-2S: Fresh MDW Subcatch Tc=7.0 min CN=71 Runoff=0.02 cfs 0.005 af MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 48HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Runoff Area=2.300 ac 0.00% Impervious Runoff Depth=0.00"Subcatchment 67-3S: Fresh MDW Subcatch Tc=83.0 min CN=10 Runoff=0.00 cfs 0.000 af Runoff Area=17.000 ac 0.00% Impervious Runoff Depth=0.09"Subcatchment 68S: M10 Tc=10.0 min CN=74 Runoff=0.89 cfs 0.131 af Inflow=0.87 cfs 0.252 afReach 1R: Lake Susan Drainage Outflow=0.87 cfs 0.252 af Avg. Flow Depth=0.39' Max Vel=1.54 fps Inflow=6.73 cfs 0.577 afReach 61R: NERDITCH n=0.035 L=545.0' S=0.0055 '/' Capacity=737.08 cfs Outflow=5.49 cfs 0.577 af Avg. Flow Depth=0.37' Max Vel=3.25 fps Inflow=1.34 cfs 0.079 afReach 62R: L42 24.0" Round Pipe n=0.012 L=200.0' S=0.0050 '/' Capacity=17.33 cfs Outflow=1.31 cfs 0.079 af Peak Elev=909.54' Storage=1,279 cf Inflow=3.45 cfs 0.364 afPond 2P: Wetland 2 Outflow=3.21 cfs 0.364 af Peak Elev=906.58' Storage=22,966 cf Inflow=5.18 cfs 0.613 afPond 3P: Basin 3 (Wetland 1) Outflow=0.18 cfs 0.159 af Peak Elev=896.03' Storage=3 cf Inflow=0.83 cfs 0.247 afPond 4P: Powers Culvert 54.0" Round Culvert n=0.013 L=191.0' S=0.0062 '/' Outflow=0.83 cfs 0.247 af Peak Elev=892.21' Storage=29,583 cf Inflow=12.28 cfs 1.031 afPond 61P: Englewood Pond Outflow=0.36 cfs 0.978 af Peak Elev=896.53' Storage=10,226 cf Inflow=4.59 cfs 0.326 afPond 65P: Fresh MDW Outflow=0.19 cfs 0.172 af Peak Elev=890.54' Storage=55,777 cf Inflow=0.92 cfs 1.280 afPond 68P: East MNDOT M10 Wetland Outflow=0.00 cfs 0.000 af Total Runoff Area = 97.033 ac Runoff Volume = 1.941 af Average Runoff Depth = 0.24" 98.79% Pervious = 95.862 ac 1.21% Impervious = 1.170 ac MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 49HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 0S: To Powers - North [45] Hint: Runoff=Zero Runoff = 0.00 cfs @ 0.00 hrs, Volume= 0.000 af, Depth= 0.00" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32" Area (sf) CN Description 27,760 58 Meadow, non-grazed, HSG B 27,760 58 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 5.6 75 0.0530 0.22 Sheet Flow, Grass: Short n= 0.150 P2= 2.87" 0.9 137 0.1240 2.46 Shallow Concentrated Flow, Short Grass Pasture Kv= 7.0 fps 6.5 212 Total Subcatchment 0S: To Powers - North Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)1 0 MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32" Runoff Area=27,760 sf Runoff Volume=0.000 af Runoff Depth=0.00" Flow Length=212' Tc=6.5 min CN=58 0.00 cfs MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 50HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 00S: To Powers - South Runoff = 0.08 cfs @ 12.17 hrs, Volume= 0.005 af, Depth= 0.09" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32" Area (sf) CN Description 14,560 55 Woods, Good, HSG B 14,560 79 Pasture/grassland/range, Poor, HSG B 29,120 Weighted Average 29,120 67 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 4.3 38 0.0200 0.15 Sheet Flow, Range n= 0.130 P2= 2.87" 2.9 160 0.0170 0.91 Shallow Concentrated Flow, Short Grass Pasture Kv= 7.0 fps 7.2 198 Total Subcatchment 00S: To Powers - South Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.085 0.08 0.075 0.07 0.065 0.06 0.055 0.05 0.045 0.04 0.035 0.03 0.025 0.02 0.015 0.01 0.005 0 MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32" Runoff Area=29,120 sf Runoff Volume=0.005 af Runoff Depth=0.09" Flow Length=198' Tc=7.2 min CN=WQ 0.08 cfs MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 51HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 1S: To Lyman - NE [45] Hint: Runoff=Zero Runoff = 0.00 cfs @ 0.00 hrs, Volume= 0.000 af, Depth= 0.00" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32" Area (sf) CN Description 90,310 58 Meadow, non-grazed, HSG B 90,310 58 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 2.6 50 0.1600 0.32 Sheet Flow, Grass: Short n= 0.150 P2= 2.87" 0.4 72 0.1600 2.80 Shallow Concentrated Flow, Short Grass Pasture Kv= 7.0 fps 2.0 Direct Entry, Make up to 5 Minutes 5.0 122 Total Subcatchment 1S: To Lyman - NE Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)1 0 MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32" Runoff Area=90,310 sf Runoff Volume=0.000 af Runoff Depth=0.00" Flow Length=122' Slope=0.1600 '/' Tc=5.0 min CN=58 0.00 cfs MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 52HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 2S: Wetland 2 Runoff = 3.45 cfs @ 12.41 hrs, Volume= 0.364 af, Depth= 0.28" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32" Area (sf) CN Description 31,810 98 Water Surface, HSG D * 70,790 96 Wetland 79,915 79 Pasture/grassland/range, Poor, HSG B * 86,270 61 Grasses, Good, HSG B 418,735 79 Pasture/grassland/range, Poor, HSG B 687,520 Weighted Average 655,710 78 95.37% Pervious Area 31,810 98 4.63% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 9.2 135 0.0370 0.25 Sheet Flow, Range n= 0.130 P2= 2.87" 0.4 60 0.1310 2.53 Shallow Concentrated Flow, Short Grass Pasture Kv= 7.0 fps 0.1 46 0.6500 5.64 Shallow Concentrated Flow, Short Grass Pasture Kv= 7.0 fps 1.4 90 0.0220 1.04 Shallow Concentrated Flow, Short Grass Pasture Kv= 7.0 fps 0.9 52 0.0190 0.96 Shallow Concentrated Flow, Short Grass Pasture Kv= 7.0 fps 1.3 94 0.0320 1.25 Shallow Concentrated Flow, Short Grass Pasture Kv= 7.0 fps 2.3 210 0.0480 1.53 Shallow Concentrated Flow, Short Grass Pasture Kv= 7.0 fps 0.4 50 0.0200 2.12 Shallow Concentrated Flow, Wetland Grassed Waterway Kv= 15.0 fps 10.4 350 0.0014 0.56 Shallow Concentrated Flow, Wetland Grassed Waterway Kv= 15.0 fps 26.4 1,087 Total MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 53HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Subcatchment 2S: Wetland 2 Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)3 2 1 0 MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32" Runoff Area=687,520 sf Runoff Volume=0.364 af Runoff Depth=0.28" Flow Length=1,087' Tc=26.4 min CN=WQ 3.45 cfs MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 54HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 3S: Wetland 1 Runoff = 2.84 cfs @ 12.29 hrs, Volume= 0.249 af, Depth= 0.23" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32" Area (sf) CN Description * 56,025 96 Wetland, HSG D 55,045 79 Pasture/grassland/range, Poor, HSG B 62,080 55 Woods, Good, HSG B 349,085 79 Pasture/grassland/range, Poor, HSG B 37,910 77 Woods, Good, HSG D 560,145 Weighted Average 560,145 78 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 9.2 100 0.0200 0.18 Sheet Flow, Range n= 0.130 P2= 2.87" 7.2 438 0.0210 1.01 Shallow Concentrated Flow, Short Grass Pasture Kv= 7.0 fps 0.4 47 0.0150 1.84 Shallow Concentrated Flow, Wetland Grassed Waterway Kv= 15.0 fps 16.8 585 Total Subcatchment 3S: Wetland 1 Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)3 2 1 0 MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32" Runoff Area=560,145 sf Runoff Volume=0.249 af Runoff Depth=0.23" Flow Length=585' Tc=16.8 min CN=WQ 2.84 cfs MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 55HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 4oS: From Powers Runoff = 0.17 cfs @ 12.15 hrs, Volume= 0.011 af, Depth= 0.16" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32" Area (sf) CN Description 35,675 78 Meadow, non-grazed, HSG D 35,675 78 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 3.5 75 0.1670 0.36 Sheet Flow, Grass: Short n= 0.150 P2= 2.87" 2.5 245 0.0550 1.64 Shallow Concentrated Flow, Short Grass Pasture Kv= 7.0 fps 6.0 320 Total Subcatchment 4oS: From Powers Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.18 0.17 0.16 0.15 0.14 0.13 0.12 0.11 0.1 0.09 0.08 0.07 0.06 0.05 0.04 0.03 0.02 0.01 0 MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32" Runoff Area=35,675 sf Runoff Volume=0.011 af Runoff Depth=0.16" Flow Length=320' Tc=6.0 min CN=78 0.17 cfs MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 56HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 4S: Wetland 8 Runoff = 0.75 cfs @ 12.34 hrs, Volume= 0.077 af, Depth= 0.17" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32" Area (sf) CN Description * 2,815 96 Wetland, HSG D 15,470 55 Woods, Good, HSG B 150,205 79 Pasture/grassland/range, Poor, HSG B 37,925 79 Pasture/grassland/range, Poor, HSG B 26,410 77 Woods, Good, HSG D 232,825 Weighted Average 232,825 77 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 10.4 50 0.0350 0.08 Sheet Flow, Woods: Light underbrush n= 0.400 P2= 2.87" 4.2 50 0.0350 0.20 Sheet Flow, Range n= 0.130 P2= 2.87" 3.5 325 0.0490 1.55 Shallow Concentrated Flow, Short Grass Pasture Kv= 7.0 fps 0.2 47 0.0600 3.67 Shallow Concentrated Flow, Wetland Grassed Waterway Kv= 15.0 fps 18.3 472 Total MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 57HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Subcatchment 4S: Wetland 8 Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.8 0.75 0.7 0.65 0.6 0.55 0.5 0.45 0.4 0.35 0.3 0.25 0.2 0.15 0.1 0.05 0 MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32" Runoff Area=232,825 sf Runoff Volume=0.077 af Runoff Depth=0.17" Flow Length=472' Tc=18.3 min CN=WQ 0.75 cfs MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 58HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 16oS: East Offsite [45] Hint: Runoff=Zero Runoff = 0.00 cfs @ 0.00 hrs, Volume= 0.000 af, Depth= 0.00" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32" Area (sf) CN Description 4,669 58 Meadow, non-grazed, HSG B 4,669 58 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 10.0 Direct Entry, Subcatchment 16oS: East Offsite Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)1 0 MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32" Runoff Area=4,669 sf Runoff Volume=0.000 af Runoff Depth=0.00" Tc=10.0 min CN=58 0.00 cfs MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 59HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 61S: Powers (from SRF) Runoff = 6.20 cfs @ 12.17 hrs, Volume= 0.325 af, Depth= 0.41" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32" Area (ac) CN Description * 9.400 87 Weighted 9.400 87 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 9.0 Direct Entry, Subcatchment 61S: Powers (from SRF) Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)6 5 4 3 2 1 0 MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32" Runoff Area=9.400 ac Runoff Volume=0.325 af Runoff Depth=0.41" Tc=9.0 min CN=87 6.20 cfs MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 60HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 62S: NE Ramp (from SRF) Runoff = 1.34 cfs @ 12.17 hrs, Volume= 0.079 af, Depth= 0.23" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32" Area (ac) CN Description * 4.200 81 Weighted 4.200 81 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 8.0 Direct Entry, Subcatchment 62S: NE Ramp (from SRF) Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)1 0 MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32" Runoff Area=4.200 ac Runoff Volume=0.079 af Runoff Depth=0.23" Tc=8.0 min CN=81 1.34 cfs MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 61HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 63S: TH 212 (from SRF) Runoff = 4.71 cfs @ 12.21 hrs, Volume= 0.283 af, Depth= 0.41" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32" Area (ac) CN Description * 8.200 87 Weighted 8.200 87 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 12.0 Direct Entry, Subcatchment 63S: TH 212 (from SRF) Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)5 4 3 2 1 0 MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32" Runoff Area=8.200 ac Runoff Volume=0.283 af Runoff Depth=0.41" Tc=12.0 min CN=87 4.71 cfs MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 62HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 64S: Englewood (from SRF) Runoff = 0.99 cfs @ 12.22 hrs, Volume= 0.091 af, Depth= 0.14" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32" Area (ac) CN Description * 7.800 77 Weighted 7.800 77 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 10.0 Direct Entry, Subcatchment 64S: Englewood (from SRF) Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)1 0 MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32" Runoff Area=7.800 ac Runoff Volume=0.091 af Runoff Depth=0.14" Tc=10.0 min CN=77 0.99 cfs MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 63HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 65S: LYMLP (from SRF) Runoff = 2.01 cfs @ 12.26 hrs, Volume= 0.149 af, Depth= 0.28" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32" Area (ac) CN Description * 6.400 83 Weighted 6.400 83 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 15.0 Direct Entry, Subcatchment 65S: LYMLP (from SRF) Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)2 1 0 MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32" Runoff Area=6.400 ac Runoff Volume=0.149 af Runoff Depth=0.28" Tc=15.0 min CN=83 2.01 cfs MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 64HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 66S: N54 (from SRF) Runoff = 2.53 cfs @ 12.15 hrs, Volume= 0.123 af, Depth= 0.78" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32" Area (ac) CN Description * 1.900 94 Weighted 1.900 94 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 7.6 Direct Entry, Subcatchment 66S: N54 (from SRF) Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)2 1 0 MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32" Runoff Area=1.900 ac Runoff Volume=0.123 af Runoff Depth=0.78" Tc=7.6 min CN=94 2.53 cfs MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 65HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 67-1S: Fresh MDW Subcatch 1 (from SRF) Runoff = 0.84 cfs @ 12.14 hrs, Volume= 0.048 af, Depth= 1.32" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32" Area (ac) CN Description * 0.440 100 Weighted 0.440 100 100.00% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 7.0 Direct Entry, Subcatchment 67-1S: Fresh MDW Subcatch 1 (from SRF) Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.9 0.85 0.8 0.75 0.7 0.65 0.6 0.55 0.5 0.45 0.4 0.35 0.3 0.25 0.2 0.15 0.1 0.05 0 MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32" Runoff Area=0.440 ac Runoff Volume=0.048 af Runoff Depth=1.32" Tc=7.0 min CN=100 0.84 cfs MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 66HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 67-2S: Fresh MDW Subcatch 2 (from SRF) Runoff = 0.02 cfs @ 12.44 hrs, Volume= 0.005 af, Depth= 0.06" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32" Area (ac) CN Description * 1.100 71 Weighted 1.100 71 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 7.0 Direct Entry, Subcatchment 67-2S: Fresh MDW Subcatch 2 (from SRF) Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.025 0.024 0.023 0.022 0.021 0.02 0.019 0.018 0.017 0.016 0.015 0.014 0.013 0.012 0.011 0.01 0.009 0.008 0.007 0.006 0.005 0.004 0.003 0.002 0.001 0 MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32" Runoff Area=1.100 ac Runoff Volume=0.005 af Runoff Depth=0.06" Tc=7.0 min CN=71 0.02 cfs MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 67HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 67-3S: Fresh MDW Subcatch 3 (from SRF) [45] Hint: Runoff=Zero Runoff = 0.00 cfs @ 0.00 hrs, Volume= 0.000 af, Depth= 0.00" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32" Area (ac) CN Description * 2.300 10 Weighted 2.300 10 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 83.0 Direct Entry, Subcatchment 67-3S: Fresh MDW Subcatch 3 (from SRF) Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)1 0 MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32" Runoff Area=2.300 ac Runoff Volume=0.000 af Runoff Depth=0.00" Tc=83.0 min CN=10 0.00 cfs MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 68HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 68S: M10 Runoff = 0.89 cfs @ 12.28 hrs, Volume= 0.131 af, Depth= 0.09" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32" Area (ac) CN Description * 17.000 74 Weighted 17.000 74 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 10.0 Direct Entry, Subcatchment 68S: M10 Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.95 0.9 0.85 0.8 0.75 0.7 0.65 0.6 0.55 0.5 0.45 0.4 0.35 0.3 0.25 0.2 0.15 0.1 0.05 0 MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32" Runoff Area=17.000 ac Runoff Volume=0.131 af Runoff Depth=0.09" Tc=10.0 min CN=74 0.89 cfs MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 69HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Reach 1R: Lake Susan Drainage [40] Hint: Not Described (Outflow=Inflow) Inflow Area = 38.293 ac, 1.91% Impervious, Inflow Depth = 0.08" for 1.1 Inch Equiv. event Inflow = 0.87 cfs @ 12.34 hrs, Volume= 0.252 af Outflow = 0.87 cfs @ 12.34 hrs, Volume= 0.252 af, Atten= 0%, Lag= 0.0 min Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Reach 1R: Lake Susan Drainage Inflow Outflow Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.95 0.9 0.85 0.8 0.75 0.7 0.65 0.6 0.55 0.5 0.45 0.4 0.35 0.3 0.25 0.2 0.15 0.1 0.05 0 Inflow Area=38.293 ac 0.87 cfs 0.87 cfs MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 70HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Reach 61R: NERDITCH Inflow Area = 47.693 ac, 1.53% Impervious, Inflow Depth = 0.15" for 1.1 Inch Equiv. event Inflow = 6.73 cfs @ 12.17 hrs, Volume= 0.577 af Outflow = 5.49 cfs @ 12.24 hrs, Volume= 0.577 af, Atten= 18%, Lag= 3.8 min Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Max. Velocity= 1.54 fps, Min. Travel Time= 5.9 min Avg. Velocity = 0.43 fps, Avg. Travel Time= 21.2 min Peak Storage= 1,943 cf @ 12.24 hrs Average Depth at Peak Storage= 0.39' Bank-Full Depth= 5.00' Flow Area= 115.0 sf, Capacity= 737.08 cfs 8.00' x 5.00' deep channel, n= 0.035 Side Slope Z-value= 3.0 '/' Top Width= 38.00' Length= 545.0' Slope= 0.0055 '/' Inlet Invert= 895.00', Outlet Invert= 892.00' ‡ Reach 61R: NERDITCH Inflow Outflow Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)7 6 5 4 3 2 1 0 Inflow Area=47.693 ac Avg. Flow Depth=0.39' Max Vel=1.54 fps n=0.035 L=545.0' S=0.0055 '/' Capacity=737.08 cfs 6.73 cfs 5.49 cfs MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 71HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Stage-Area-Storage for Reach 61R: NERDITCH Elevation (feet) End-Area (sq-ft) Storage (cubic-feet) 895.00 0.0 0 895.05 0.4 222 895.10 0.8 452 895.15 1.3 691 895.20 1.7 937 895.25 2.2 1,192 895.30 2.7 1,455 895.35 3.2 1,726 895.40 3.7 2,006 895.45 4.2 2,293 895.50 4.8 2,589 895.55 5.3 2,893 895.60 5.9 3,205 895.65 6.5 3,525 895.70 7.1 3,853 895.75 7.7 4,190 895.80 8.3 4,534 895.85 9.0 4,887 895.90 9.6 5,248 895.95 10.3 5,618 896.00 11.0 5,995 896.05 11.7 6,381 896.10 12.4 6,774 896.15 13.2 7,176 896.20 13.9 7,586 896.25 14.7 8,005 896.30 15.5 8,431 896.35 16.3 8,866 896.40 17.1 9,309 896.45 17.9 9,760 896.50 18.8 10,219 896.55 19.6 10,686 896.60 20.5 11,162 896.65 21.4 11,645 896.70 22.3 12,137 896.75 23.2 12,637 896.80 24.1 13,145 896.85 25.1 13,662 896.90 26.0 14,186 896.95 27.0 14,719 897.00 28.0 15,260 897.05 29.0 15,809 897.10 30.0 16,366 897.15 31.1 16,932 897.20 32.1 17,505 897.25 33.2 18,087 897.30 34.3 18,677 897.35 35.4 19,275 897.40 36.5 19,882 897.45 37.6 20,496 897.50 38.8 21,119 897.55 39.9 21,750 Elevation (feet) End-Area (sq-ft) Storage (cubic-feet) 897.60 41.1 22,389 897.65 42.3 23,036 897.70 43.5 23,691 897.75 44.7 24,355 897.80 45.9 25,026 897.85 47.2 25,706 897.90 48.4 26,394 897.95 49.7 27,091 898.00 51.0 27,795 898.05 52.3 28,508 898.10 53.6 29,228 898.15 55.0 29,957 898.20 56.3 30,694 898.25 57.7 31,440 898.30 59.1 32,193 898.35 60.5 32,955 898.40 61.9 33,725 898.45 63.3 34,503 898.50 64.8 35,289 898.55 66.2 36,083 898.60 67.7 36,886 898.65 69.2 37,696 898.70 70.7 38,515 898.75 72.2 39,342 898.80 73.7 40,177 898.85 75.3 41,021 898.90 76.8 41,872 898.95 78.4 42,732 899.00 80.0 43,600 899.05 81.6 44,476 899.10 83.2 45,360 899.15 84.9 46,253 899.20 86.5 47,153 899.25 88.2 48,062 899.30 89.9 48,979 899.35 91.6 49,904 899.40 93.3 50,838 899.45 95.0 51,779 899.50 96.8 52,729 899.55 98.5 53,687 899.60 100.3 54,653 899.65 102.1 55,627 899.70 103.9 56,609 899.75 105.7 57,600 899.80 107.5 58,598 899.85 109.4 59,605 899.90 111.2 60,620 899.95 113.1 61,644 900.00 115.0 62,675 MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 72HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Reach 62R: L42 [52] Hint: Inlet/Outlet conditions not evaluated Inflow Area = 4.200 ac, 0.00% Impervious, Inflow Depth = 0.23" for 1.1 Inch Equiv. event Inflow = 1.34 cfs @ 12.17 hrs, Volume= 0.079 af Outflow = 1.31 cfs @ 12.18 hrs, Volume= 0.079 af, Atten= 2%, Lag= 0.8 min Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Max. Velocity= 3.25 fps, Min. Travel Time= 1.0 min Avg. Velocity = 1.17 fps, Avg. Travel Time= 2.9 min Peak Storage= 81 cf @ 12.18 hrs Average Depth at Peak Storage= 0.37' Bank-Full Depth= 2.00' Flow Area= 3.1 sf, Capacity= 17.33 cfs 24.0" Round Pipe n= 0.012 Length= 200.0' Slope= 0.0050 '/' Inlet Invert= 893.00', Outlet Invert= 892.00' Reach 62R: L42 Inflow Outflow Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)1 0 Inflow Area=4.200 ac Avg. Flow Depth=0.37' Max Vel=3.25 fps 24.0" Round Pipe n=0.012 L=200.0' S=0.0050 '/' Capacity=17.33 cfs 1.34 cfs 1.31 cfs MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 73HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Stage-Area-Storage for Reach 62R: L42 Elevation (feet) End-Area (sq-ft) Storage (cubic-feet) 893.00 0.0 0 893.02 0.0 1 893.04 0.0 3 893.06 0.0 5 893.08 0.0 8 893.10 0.1 12 893.12 0.1 15 893.14 0.1 19 893.16 0.1 24 893.18 0.1 28 893.20 0.2 33 893.22 0.2 38 893.24 0.2 43 893.26 0.2 48 893.28 0.3 53 893.30 0.3 59 893.32 0.3 65 893.34 0.4 71 893.36 0.4 77 893.38 0.4 83 893.40 0.4 89 893.42 0.5 96 893.44 0.5 102 893.46 0.5 109 893.48 0.6 116 893.50 0.6 123 893.52 0.6 130 893.54 0.7 137 893.56 0.7 144 893.58 0.8 151 893.60 0.8 159 893.62 0.8 166 893.64 0.9 173 893.66 0.9 181 893.68 0.9 188 893.70 1.0 196 893.72 1.0 204 893.74 1.1 211 893.76 1.1 219 893.78 1.1 227 893.80 1.2 235 893.82 1.2 243 893.84 1.3 250 893.86 1.3 258 893.88 1.3 266 893.90 1.4 274 893.92 1.4 282 893.94 1.5 290 893.96 1.5 298 893.98 1.5 306 894.00 1.6 314 894.02 1.6 322 Elevation (feet) End-Area (sq-ft) Storage (cubic-feet) 894.04 1.7 330 894.06 1.7 338 894.08 1.7 346 894.10 1.8 354 894.12 1.8 362 894.14 1.8 370 894.16 1.9 378 894.18 1.9 386 894.20 2.0 394 894.22 2.0 401 894.24 2.0 409 894.26 2.1 417 894.28 2.1 425 894.30 2.2 432 894.32 2.2 440 894.34 2.2 447 894.36 2.3 455 894.38 2.3 462 894.40 2.3 470 894.42 2.4 477 894.44 2.4 484 894.46 2.5 491 894.48 2.5 499 894.50 2.5 505 894.52 2.6 512 894.54 2.6 519 894.56 2.6 526 894.58 2.7 532 894.60 2.7 539 894.62 2.7 545 894.64 2.8 551 894.66 2.8 557 894.68 2.8 563 894.70 2.8 569 894.72 2.9 575 894.74 2.9 580 894.76 2.9 586 894.78 3.0 591 894.80 3.0 596 894.82 3.0 600 894.84 3.0 605 894.86 3.0 609 894.88 3.1 613 894.90 3.1 617 894.92 3.1 620 894.94 3.1 623 894.96 3.1 625 894.98 3.1 627 895.00 3.1 628 MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 74HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Pond 2P: Wetland 2 Inflow Area = 15.783 ac, 4.63% Impervious, Inflow Depth = 0.28" for 1.1 Inch Equiv. event Inflow = 3.45 cfs @ 12.41 hrs, Volume= 0.364 af Outflow = 3.21 cfs @ 12.50 hrs, Volume= 0.364 af, Atten= 7%, Lag= 5.3 min Primary = 3.21 cfs @ 12.50 hrs, Volume= 0.364 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 909.54' @ 12.50 hrs Surf.Area= 31,672 sf Storage= 1,279 cf Plug-Flow detention time= 11.9 min calculated for 0.364 af (100% of inflow) Center-of-Mass det. time= 11.9 min ( 853.4 - 841.5 ) Volume Invert Avail.Storage Storage Description #1 909.50' 137,271 cf Custom Stage Data (Prismatic) Listed below (Recalc) Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 909.50 25,770 0 0 910.00 92,020 29,448 29,448 911.00 123,627 107,824 137,271 Device Routing Invert Outlet Devices #1 Primary 909.50'Asymmetrical Weir, C= 3.27 Offset (feet) 0.00 45.00 95.00 196.00 241.00 301.00 Height (feet) 1.50 0.50 0.00 0.00 0.50 1.50 Primary OutFlow Max=3.21 cfs @ 12.50 hrs HW=909.54' TW=906.15' (Dynamic Tailwater) 1=Asymmetrical Weir (Weir Controls 3.21 cfs @ 0.66 fps) MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 75HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Pond 2P: Wetland 2 Inflow Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)3 2 1 0 Inflow Area=15.783 ac Peak Elev=909.54' Storage=1,279 cf 3.45 cfs 3.21 cfs MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 76HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Stage-Area-Storage for Pond 2P: Wetland 2 Elevation (feet) Surface (sq-ft) Storage (cubic-feet) 909.50 25,770 0 909.52 28,420 542 909.54 31,070 1,137 909.56 33,720 1,785 909.58 36,370 2,486 909.60 39,020 3,240 909.62 41,670 4,046 909.64 44,320 4,906 909.66 46,970 5,819 909.68 49,620 6,785 909.70 52,270 7,804 909.72 54,920 8,876 909.74 57,570 10,001 909.76 60,220 11,179 909.78 62,870 12,410 909.80 65,520 13,693 909.82 68,170 15,030 909.84 70,820 16,420 909.86 73,470 17,863 909.88 76,120 19,359 909.90 78,770 20,908 909.92 81,420 22,510 909.94 84,070 24,165 909.96 86,720 25,873 909.98 89,370 27,634 910.00 92,020 29,448 910.02 92,652 31,294 910.04 93,284 33,154 910.06 93,916 35,026 910.08 94,549 36,910 910.10 95,181 38,808 910.12 95,813 40,717 910.14 96,445 42,640 910.16 97,077 44,575 910.18 97,709 46,523 910.20 98,341 48,484 910.22 98,974 50,457 910.24 99,606 52,443 910.26 100,238 54,441 910.28 100,870 56,452 910.30 101,502 58,476 910.32 102,134 60,512 910.34 102,766 62,561 910.36 103,399 64,623 910.38 104,031 66,697 910.40 104,663 68,784 910.42 105,295 70,884 910.44 105,927 72,996 910.46 106,559 75,121 910.48 107,191 77,258 910.50 107,824 79,408 910.52 108,456 81,571 Elevation (feet) Surface (sq-ft) Storage (cubic-feet) 910.54 109,088 83,747 910.56 109,720 85,935 910.58 110,352 88,135 910.60 110,984 90,349 910.62 111,616 92,575 910.64 112,248 94,813 910.66 112,881 97,065 910.68 113,513 99,329 910.70 114,145 101,605 910.72 114,777 103,894 910.74 115,409 106,196 910.76 116,041 108,511 910.78 116,673 110,838 910.80 117,306 113,178 910.82 117,938 115,530 910.84 118,570 117,895 910.86 119,202 120,273 910.88 119,834 122,663 910.90 120,466 125,066 910.92 121,098 127,482 910.94 121,731 129,910 910.96 122,363 132,351 910.98 122,995 134,805 911.00 123,627 137,271 MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 77HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Pond 3P: Basin 3 (Wetland 1) Inflow Area = 28.642 ac, 2.55% Impervious, Inflow Depth = 0.26" for 1.1 Inch Equiv. event Inflow = 5.18 cfs @ 12.41 hrs, Volume= 0.613 af Outflow = 0.18 cfs @ 20.08 hrs, Volume= 0.159 af, Atten= 97%, Lag= 460.5 min Primary = 0.18 cfs @ 20.08 hrs, Volume= 0.159 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 906.58' @ 20.08 hrs Surf.Area= 44,641 sf Storage= 22,966 cf Plug-Flow detention time= 1,178.6 min calculated for 0.159 af (26% of inflow) Center-of-Mass det. time= 1,049.3 min ( 1,900.1 - 850.8 ) Volume Invert Avail.Storage Storage Description #1 905.50' 251,588 cf Custom Stage Data (Prismatic) Listed below (Recalc) Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 905.50 0 0 0 906.00 18,685 4,671 4,671 907.00 63,607 41,146 45,817 908.00 100,875 82,241 128,058 909.00 146,184 123,530 251,588 Device Routing Invert Outlet Devices #1 Primary 906.50'Asymmetrical Weir, C= 3.27 Offset (feet) 0.00 28.00 115.00 135.00 155.00 184.00 204.00 Height (feet) 2.50 1.50 0.50 0.00 0.50 1.50 2.50 Primary OutFlow Max=0.18 cfs @ 20.08 hrs HW=906.58' TW=895.88' (Dynamic Tailwater) 1=Asymmetrical Weir (Weir Controls 0.18 cfs @ 0.36 fps) MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 78HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Pond 3P: Basin 3 (Wetland 1) Inflow Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)5 4 3 2 1 0 Inflow Area=28.642 ac Peak Elev=906.58' Storage=22,966 cf 5.18 cfs 0.18 cfs MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 79HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Stage-Area-Storage for Pond 3P: Basin 3 (Wetland 1) Elevation (feet) Surface (sq-ft) Storage (cubic-feet) 905.50 0 0 905.55 1,868 47 905.60 3,737 187 905.65 5,605 420 905.70 7,474 747 905.75 9,343 1,168 905.80 11,211 1,682 905.85 13,080 2,289 905.90 14,948 2,990 905.95 16,817 3,784 906.00 18,685 4,671 906.05 20,931 5,662 906.10 23,177 6,764 906.15 25,423 7,979 906.20 27,669 9,307 906.25 29,916 10,746 906.30 32,162 12,298 906.35 34,408 13,962 906.40 36,654 15,739 906.45 38,900 17,628 906.50 41,146 19,629 906.55 43,392 21,742 906.60 45,638 23,968 906.65 47,884 26,306 906.70 50,130 28,757 906.75 52,377 31,319 906.80 54,623 33,994 906.85 56,869 36,782 906.90 59,115 39,681 906.95 61,361 42,693 907.00 63,607 45,817 907.05 65,470 49,044 907.10 67,334 52,364 907.15 69,197 55,778 907.20 71,061 59,284 907.25 72,924 62,884 907.30 74,787 66,576 907.35 76,651 70,362 907.40 78,514 74,241 907.45 80,378 78,214 907.50 82,241 82,279 907.55 84,104 86,438 907.60 85,968 90,690 907.65 87,831 95,035 907.70 89,695 99,473 907.75 91,558 104,004 907.80 93,421 108,629 907.85 95,285 113,346 907.90 97,148 118,157 907.95 99,012 123,061 908.00 100,875 128,058 908.05 103,140 133,159 Elevation (feet) Surface (sq-ft) Storage (cubic-feet) 908.10 105,406 138,372 908.15 107,671 143,699 908.20 109,937 149,139 908.25 112,202 154,693 908.30 114,468 160,360 908.35 116,733 166,140 908.40 118,999 172,033 908.45 121,264 178,040 908.50 123,530 184,159 908.55 125,795 190,392 908.60 128,060 196,739 908.65 130,326 203,199 908.70 132,591 209,771 908.75 134,857 216,458 908.80 137,122 223,257 908.85 139,388 230,170 908.90 141,653 237,196 908.95 143,919 244,335 909.00 146,184 251,588 MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 80HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Pond 4P: Powers Culvert Inflow Area = 34.806 ac, 2.10% Impervious, Inflow Depth = 0.09" for 1.1 Inch Equiv. event Inflow = 0.83 cfs @ 12.34 hrs, Volume= 0.247 af Outflow = 0.83 cfs @ 12.34 hrs, Volume= 0.247 af, Atten= 0%, Lag= 0.0 min Primary = 0.83 cfs @ 12.34 hrs, Volume= 0.247 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 896.03' @ 12.34 hrs Surf.Area= 26 sf Storage= 3 cf Plug-Flow detention time= (not calculated: outflow precedes inflow) Center-of-Mass det. time= 0.2 min ( 1,536.3 - 1,536.1 ) Volume Invert Avail.Storage Storage Description #1 895.70' 165,537 cf Custom Stage Data (Prismatic) Listed below (Recalc) Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 895.70 1 0 0 896.00 12 2 2 898.00 877 889 891 899.00 2,760 1,819 2,709 900.00 8,250 5,505 8,214 901.00 16,910 12,580 20,794 902.00 26,632 21,771 42,565 903.00 36,506 31,569 74,134 904.00 44,700 40,603 114,737 905.00 56,900 50,800 165,537 Device Routing Invert Outlet Devices #1 Primary 895.71'54.0" Round Culvert L= 191.0' RCP, end-section conforming to fill, Ke= 0.500 Inlet / Outlet Invert= 895.71' / 894.53' S= 0.0062 '/' Cc= 0.900 n= 0.013 Concrete pipe, straight & clean, Flow Area= 15.90 sf Primary OutFlow Max=0.83 cfs @ 12.34 hrs HW=896.03' TW=0.00' (Dynamic Tailwater) 1=Culvert (Barrel Controls 0.83 cfs @ 2.53 fps) MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 81HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Pond 4P: Powers Culvert Inflow Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.9 0.85 0.8 0.75 0.7 0.65 0.6 0.55 0.5 0.45 0.4 0.35 0.3 0.25 0.2 0.15 0.1 0.05 0 Inflow Area=34.806 ac Peak Elev=896.03' Storage=3 cf 54.0" Round Culvert n=0.013 L=191.0' S=0.0062 '/' 0.83 cfs 0.83 cfs MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 82HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Stage-Area-Storage for Pond 4P: Powers Culvert Elevation (feet) Surface (sq-ft) Storage (cubic-feet) 895.70 1 0 895.80 5 0 895.90 8 1 896.00 12 2 896.10 55 5 896.20 99 13 896.30 142 25 896.40 185 41 896.50 228 62 896.60 272 87 896.70 315 116 896.80 358 150 896.90 401 188 897.00 445 230 897.10 488 277 897.20 531 328 897.30 574 383 897.40 618 443 897.50 661 507 897.60 704 575 897.70 747 647 897.80 791 724 897.90 834 805 898.00 877 891 898.10 1,065 988 898.20 1,254 1,104 898.30 1,442 1,239 898.40 1,630 1,392 898.50 1,819 1,565 898.60 2,007 1,756 898.70 2,195 1,966 898.80 2,383 2,195 898.90 2,572 2,443 899.00 2,760 2,709 899.10 3,309 3,013 899.20 3,858 3,371 899.30 4,407 3,785 899.40 4,956 4,253 899.50 5,505 4,776 899.60 6,054 5,354 899.70 6,603 5,987 899.80 7,152 6,674 899.90 7,701 7,417 900.00 8,250 8,214 900.10 9,116 9,083 900.20 9,982 10,038 900.30 10,848 11,079 900.40 11,714 12,207 900.50 12,580 13,422 900.60 13,446 14,723 900.70 14,312 16,111 900.80 15,178 17,586 Elevation (feet) Surface (sq-ft) Storage (cubic-feet) 900.90 16,044 19,147 901.00 16,910 20,794 901.10 17,882 22,534 901.20 18,854 24,371 901.30 19,827 26,305 901.40 20,799 28,336 901.50 21,771 30,465 901.60 22,743 32,690 901.70 23,715 35,013 901.80 24,688 37,433 901.90 25,660 39,951 902.00 26,632 42,565 902.10 27,619 45,278 902.20 28,607 48,089 902.30 29,594 50,999 902.40 30,582 54,008 902.50 31,569 57,116 902.60 32,556 60,322 902.70 33,544 63,627 902.80 34,531 67,031 902.90 35,519 70,533 903.00 36,506 74,134 903.10 37,325 77,826 903.20 38,145 81,600 903.30 38,964 85,455 903.40 39,784 89,392 903.50 40,603 93,412 903.60 41,422 97,513 903.70 42,242 101,696 903.80 43,061 105,961 903.90 43,881 110,308 904.00 44,700 114,737 904.10 45,920 119,268 904.20 47,140 123,921 904.30 48,360 128,696 904.40 49,580 133,593 904.50 50,800 138,612 904.60 52,020 143,753 904.70 53,240 149,016 904.80 54,460 154,401 904.90 55,680 159,908 905.00 56,900 165,537 MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 83HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Pond 61P: Englewood Pond [62] Hint: Exceeded Reach 61R OUTLET depth by 0.18' @ 26.11 hrs [62] Hint: Exceeded Reach 62R OUTLET depth by 0.21' @ 24.61 hrs Inflow Area = 67.893 ac, 1.08% Impervious, Inflow Depth = 0.18" for 1.1 Inch Equiv. event Inflow = 12.28 cfs @ 12.22 hrs, Volume= 1.031 af Outflow = 0.36 cfs @ 21.60 hrs, Volume= 0.978 af, Atten= 97%, Lag= 562.8 min Primary = 0.36 cfs @ 21.60 hrs, Volume= 0.978 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 892.21' @ 21.60 hrs Surf.Area= 138,834 sf Storage= 29,583 cf Plug-Flow detention time= 2,337.1 min calculated for 0.978 af (95% of inflow) Center-of-Mass det. time= 2,217.1 min ( 3,233.9 - 1,016.8 ) Volume Invert Avail.Storage Storage Description #1 892.00' 1,031,055 cf Custom Stage Data (Prismatic) Listed below (Recalc) Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 892.00 136,580 0 0 895.00 168,060 456,960 456,960 898.00 214,670 574,095 1,031,055 Device Routing Invert Outlet Devices #1 Primary 892.00'42.0" Round Culvert L= 29.0' RCP, square edge headwall, Ke= 0.500 Inlet / Outlet Invert= 892.00' / 891.71' S= 0.0100 '/' Cc= 0.900 n= 0.013 Concrete pipe, straight & clean, Flow Area= 9.62 sf #2 Device 1 887.63'42.0" Round Culvert L= 13.0' RCP, end-section conforming to fill, Ke= 0.500 Inlet / Outlet Invert= 887.50' / 887.63' S= -0.0100 '/' Cc= 0.900 n= 0.013 Concrete pipe, straight & clean, Flow Area= 9.62 sf Primary OutFlow Max=0.36 cfs @ 21.60 hrs HW=892.21' TW=890.24' (Dynamic Tailwater) 1=Culvert (Barrel Controls 0.36 cfs @ 2.25 fps) 2=Culvert (Passes 0.36 cfs of 21.47 cfs potential flow) MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 84HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Pond 61P: Englewood Pond Inflow Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)13 12 11 10 9 8 7 6 5 4 3 2 1 0 Inflow Area=67.893 ac Peak Elev=892.21' Storage=29,583 cf 12.28 cfs 0.36 cfs MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 85HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Stage-Area-Storage for Pond 61P: Englewood Pond Elevation (feet) Surface (sq-ft) Storage (cubic-feet) 892.00 136,580 0 892.10 137,629 13,710 892.20 138,679 27,526 892.30 139,728 41,446 892.40 140,777 55,471 892.50 141,827 69,602 892.60 142,876 83,837 892.70 143,925 98,177 892.80 144,975 112,622 892.90 146,024 127,172 893.00 147,073 141,827 893.10 148,123 156,586 893.20 149,172 171,451 893.30 150,221 186,421 893.40 151,271 201,495 893.50 152,320 216,675 893.60 153,369 231,959 893.70 154,419 247,349 893.80 155,468 262,843 893.90 156,517 278,442 894.00 157,567 294,147 894.10 158,616 309,956 894.20 159,665 325,870 894.30 160,715 341,889 894.40 161,764 358,013 894.50 162,813 374,242 894.60 163,863 390,575 894.70 164,912 407,014 894.80 165,961 423,558 894.90 167,011 440,206 895.00 168,060 456,960 895.10 169,614 473,844 895.20 171,167 490,883 895.30 172,721 508,077 895.40 174,275 525,427 895.50 175,828 542,932 895.60 177,382 560,593 895.70 178,936 578,408 895.80 180,489 596,380 895.90 182,043 614,506 896.00 183,597 632,788 896.10 185,150 651,226 896.20 186,704 669,818 896.30 188,258 688,566 896.40 189,811 707,470 896.50 191,365 726,529 896.60 192,919 745,743 896.70 194,472 765,112 896.80 196,026 784,637 896.90 197,580 804,318 897.00 199,133 824,153 897.10 200,687 844,144 Elevation (feet) Surface (sq-ft) Storage (cubic-feet) 897.20 202,241 864,291 897.30 203,794 884,592 897.40 205,348 905,050 897.50 206,902 925,662 897.60 208,455 946,430 897.70 210,009 967,353 897.80 211,563 988,432 897.90 213,116 1,009,666 898.00 214,670 1,031,055 MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 86HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Pond 65P: Fresh MDW Inflow Area = 12.140 ac, 3.62% Impervious, Inflow Depth = 0.32" for 1.1 Inch Equiv. event Inflow = 4.59 cfs @ 12.17 hrs, Volume= 0.326 af Outflow = 0.19 cfs @ 15.15 hrs, Volume= 0.172 af, Atten= 96%, Lag= 179.3 min Primary = 0.19 cfs @ 15.15 hrs, Volume= 0.172 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 896.53' @ 15.15 hrs Surf.Area= 19,831 sf Storage= 10,226 cf Plug-Flow detention time= 923.6 min calculated for 0.172 af (53% of inflow) Center-of-Mass det. time= 821.1 min ( 1,638.2 - 817.1 ) Volume Invert Avail.Storage Storage Description #1 896.00' 123,320 cf Custom Stage Data (Prismatic) Listed below (Recalc) Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 896.00 18,540 0 0 900.00 28,230 93,540 93,540 901.00 31,330 29,780 123,320 Device Routing Invert Outlet Devices #1 Primary 892.35'12.0" Round Culvert L= 35.0' RCP, square edge headwall, Ke= 0.500 Inlet / Outlet Invert= 892.00' / 892.35' S= -0.0100 '/' Cc= 0.900 n= 0.012, Flow Area= 0.79 sf #2 Device 1 896.35'33.0" Round Culvert L= 69.0' RCP, end-section conforming to fill, Ke= 0.500 Inlet / Outlet Invert= 896.35' / 896.01' S= 0.0049 '/' Cc= 0.900 n= 0.012 Concrete pipe, finished, Flow Area= 5.94 sf Primary OutFlow Max=0.19 cfs @ 15.15 hrs HW=896.53' TW=890.09' (Dynamic Tailwater) 1=Culvert (Passes 0.19 cfs of 7.26 cfs potential flow) 2=Culvert (Barrel Controls 0.19 cfs @ 1.68 fps) MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 87HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Pond 65P: Fresh MDW Inflow Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)5 4 3 2 1 0 Inflow Area=12.140 ac Peak Elev=896.53' Storage=10,226 cf 4.59 cfs 0.19 cfs MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 88HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Stage-Area-Storage for Pond 65P: Fresh MDW Elevation (feet) Surface (sq-ft) Storage (cubic-feet) 896.00 18,540 0 896.05 18,661 930 896.10 18,782 1,866 896.15 18,903 2,808 896.20 19,025 3,756 896.25 19,146 4,711 896.30 19,267 5,671 896.35 19,388 6,637 896.40 19,509 7,610 896.45 19,630 8,588 896.50 19,751 9,573 896.55 19,872 10,563 896.60 19,994 11,560 896.65 20,115 12,563 896.70 20,236 13,572 896.75 20,357 14,586 896.80 20,478 15,607 896.85 20,599 16,634 896.90 20,720 17,667 896.95 20,841 18,706 897.00 20,963 19,751 897.05 21,084 20,802 897.10 21,205 21,860 897.15 21,326 22,923 897.20 21,447 23,992 897.25 21,568 25,068 897.30 21,689 26,149 897.35 21,810 27,237 897.40 21,931 28,330 897.45 22,053 29,430 897.50 22,174 30,535 897.55 22,295 31,647 897.60 22,416 32,765 897.65 22,537 33,889 897.70 22,658 35,019 897.75 22,779 36,154 897.80 22,900 37,296 897.85 23,022 38,445 897.90 23,143 39,599 897.95 23,264 40,759 898.00 23,385 41,925 898.05 23,506 43,097 898.10 23,627 44,276 898.15 23,748 45,460 898.20 23,870 46,650 898.25 23,991 47,847 898.30 24,112 49,050 898.35 24,233 50,258 898.40 24,354 51,473 898.45 24,475 52,694 898.50 24,596 53,920 898.55 24,717 55,153 Elevation (feet) Surface (sq-ft) Storage (cubic-feet) 898.60 24,839 56,392 898.65 24,960 57,637 898.70 25,081 58,888 898.75 25,202 60,145 898.80 25,323 61,408 898.85 25,444 62,677 898.90 25,565 63,953 898.95 25,686 65,234 899.00 25,808 66,521 899.05 25,929 67,815 899.10 26,050 69,114 899.15 26,171 70,420 899.20 26,292 71,731 899.25 26,413 73,049 899.30 26,534 74,373 899.35 26,655 75,702 899.40 26,776 77,038 899.45 26,898 78,380 899.50 27,019 79,728 899.55 27,140 81,082 899.60 27,261 82,442 899.65 27,382 83,808 899.70 27,503 85,180 899.75 27,624 86,558 899.80 27,745 87,942 899.85 27,867 89,333 899.90 27,988 90,729 899.95 28,109 92,132 900.00 28,230 93,540 900.05 28,385 94,955 900.10 28,540 96,379 900.15 28,695 97,809 900.20 28,850 99,248 900.25 29,005 100,694 900.30 29,160 102,148 900.35 29,315 103,610 900.40 29,470 105,080 900.45 29,625 106,557 900.50 29,780 108,043 900.55 29,935 109,535 900.60 30,090 111,036 900.65 30,245 112,544 900.70 30,400 114,061 900.75 30,555 115,584 900.80 30,710 117,116 900.85 30,865 118,655 900.90 31,020 120,202 900.95 31,175 121,757 901.00 31,330 123,320 MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 89HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Pond 68P: East MNDOT M10 Wetland Inflow Area = 97.033 ac, 1.21% Impervious, Inflow Depth > 0.16" for 1.1 Inch Equiv. event Inflow = 0.92 cfs @ 12.32 hrs, Volume= 1.280 af Outflow = 0.00 cfs @ 0.00 hrs, Volume= 0.000 af, Atten= 100%, Lag= 0.0 min Primary = 0.00 cfs @ 0.00 hrs, Volume= 0.000 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 890.54' @ 360.00 hrs Surf.Area= 138,675 sf Storage= 55,777 cf Plug-Flow detention time= (not calculated: initial storage exceeds outflow) Center-of-Mass det. time= (not calculated: no outflow) Volume Invert Avail.Storage Storage Description #1 890.00' 1,574,445 cf Custom Stage Data (Prismatic) Listed below (Recalc) Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 890.00 68,660 0 0 891.00 198,790 133,725 133,725 892.00 340,250 269,520 403,245 895.00 440,550 1,171,200 1,574,445 Device Routing Invert Outlet Devices #1 Primary 890.30'18.0" Round Culvert L= 155.0' RCP, square edge headwall, Ke= 0.500 Inlet / Outlet Invert= 890.30' / 889.53' S= 0.0050 '/' Cc= 0.900 n= 0.013 Concrete pipe, straight & clean, Flow Area= 1.77 sf #2 Device 1 891.00'10.0" Vert. Orifice/Grate C= 0.600 #3 Device 2 890.50'18.0" Round Culvert L= 40.0' RCP, end-section conforming to fill, Ke= 0.500 Inlet / Outlet Invert= 890.30' / 890.50' S= -0.0050 '/' Cc= 0.900 n= 0.013 Concrete pipe, straight & clean, Flow Area= 1.77 sf Primary OutFlow Max=0.00 cfs @ 0.00 hrs HW=890.00' (Free Discharge) 1=Culvert ( Controls 0.00 cfs) 2=Orifice/Grate ( Controls 0.00 cfs) 3=Culvert ( Controls 0.00 cfs) MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 90HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Pond 68P: East MNDOT M10 Wetland Inflow Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)1 0 Inflow Area=97.033 ac Peak Elev=890.54' Storage=55,777 cf 0.92 cfs 0.00 cfs MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 91HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Stage-Area-Storage for Pond 68P: East MNDOT M10 Wetland Elevation (feet) Surface (sq-ft) Storage (cubic-feet) 890.00 68,660 0 890.05 75,166 3,596 890.10 81,673 7,517 890.15 88,179 11,763 890.20 94,686 16,335 890.25 101,193 21,232 890.30 107,699 26,454 890.35 114,206 32,001 890.40 120,712 37,874 890.45 127,219 44,073 890.50 133,725 50,596 890.55 140,231 57,445 890.60 146,738 64,619 890.65 153,244 72,119 890.70 159,751 79,944 890.75 166,258 88,094 890.80 172,764 96,570 890.85 179,271 105,370 890.90 185,777 114,497 890.95 192,284 123,948 891.00 198,790 133,725 891.05 205,863 143,841 891.10 212,936 154,311 891.15 220,009 165,135 891.20 227,082 176,312 891.25 234,155 187,843 891.30 241,228 199,728 891.35 248,301 211,966 891.40 255,374 224,558 891.45 262,447 237,503 891.50 269,520 250,803 891.55 276,593 264,455 891.60 283,666 278,462 891.65 290,739 292,822 891.70 297,812 307,536 891.75 304,885 322,603 891.80 311,958 338,024 891.85 319,031 353,799 891.90 326,104 369,927 891.95 333,177 386,409 892.00 340,250 403,245 892.05 341,922 420,299 892.10 343,593 437,437 892.15 345,265 454,659 892.20 346,937 471,964 892.25 348,608 489,352 892.30 350,280 506,824 892.35 351,952 524,380 892.40 353,623 542,020 892.45 355,295 559,743 892.50 356,967 577,549 892.55 358,638 595,439 Elevation (feet) Surface (sq-ft) Storage (cubic-feet) 892.60 360,310 613,413 892.65 361,982 631,470 892.70 363,653 649,611 892.75 365,325 667,836 892.80 366,997 686,144 892.85 368,668 704,535 892.90 370,340 723,010 892.95 372,012 741,569 893.00 373,683 760,212 893.05 375,355 778,938 893.10 377,027 797,747 893.15 378,698 816,640 893.20 380,370 835,617 893.25 382,042 854,677 893.30 383,713 873,821 893.35 385,385 893,049 893.40 387,057 912,360 893.45 388,728 931,754 893.50 390,400 951,233 893.55 392,072 970,794 893.60 393,743 990,440 893.65 395,415 1,010,169 893.70 397,087 1,029,981 893.75 398,758 1,049,877 893.80 400,430 1,069,857 893.85 402,102 1,089,920 893.90 403,773 1,110,067 893.95 405,445 1,130,298 894.00 407,117 1,150,612 894.05 408,788 1,171,009 894.10 410,460 1,191,491 894.15 412,132 1,212,055 894.20 413,803 1,232,704 894.25 415,475 1,253,436 894.30 417,147 1,274,251 894.35 418,818 1,295,150 894.40 420,490 1,316,133 894.45 422,162 1,337,199 894.50 423,833 1,358,349 894.55 425,505 1,379,583 894.60 427,177 1,400,900 894.65 428,848 1,422,300 894.70 430,520 1,443,785 894.75 432,192 1,465,352 894.80 433,863 1,487,004 894.85 435,535 1,508,739 894.90 437,207 1,530,557 894.95 438,878 1,552,459 895.00 440,550 1,574,445 MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 92HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Time span=0.00-360.00 hrs, dt=0.01 hrs, 36001 points Runoff by SCS TR-20 method, UH=SCS, Weighted-Q Reach routing by Dyn-Stor-Ind method - Pond routing by Dyn-Stor-Ind method Runoff Area=27,760 sf 0.00% Impervious Runoff Depth=0.23"Subcatchment 0S: To Powers - North Flow Length=212' Tc=6.5 min CN=58 Runoff=0.09 cfs 0.012 af Runoff Area=29,120 sf 0.00% Impervious Runoff Depth=0.63"Subcatchment 00S: To Powers - South Flow Length=198' Tc=7.2 min CN=WQ Runoff=0.60 cfs 0.035 af Runoff Area=90,310 sf 0.00% Impervious Runoff Depth=0.23"Subcatchment 1S: To Lyman - NE Flow Length=122' Slope=0.1600 '/' Tc=5.0 min CN=58 Runoff=0.30 cfs 0.040 af Runoff Area=687,520 sf 4.63% Impervious Runoff Depth=1.21"Subcatchment 2S: Wetland 2 Flow Length=1,087' Tc=26.4 min CN=WQ Runoff=16.13 cfs 1.585 af Runoff Area=560,145 sf 0.00% Impervious Runoff Depth=1.12"Subcatchment 3S: Wetland 1 Flow Length=585' Tc=16.8 min CN=WQ Runoff=15.56 cfs 1.196 af Runoff Area=35,675 sf 0.00% Impervious Runoff Depth=1.04"Subcatchment 4oS: From Powers Flow Length=320' Tc=6.0 min CN=78 Runoff=1.47 cfs 0.071 af Runoff Area=232,825 sf 0.00% Impervious Runoff Depth=1.04"Subcatchment 4S: Wetland 8 Flow Length=472' Tc=18.3 min CN=WQ Runoff=5.82 cfs 0.461 af Runoff Area=4,669 sf 0.00% Impervious Runoff Depth=0.23"Subcatchment 16oS: East Offsite Tc=10.0 min CN=58 Runoff=0.01 cfs 0.002 af Runoff Area=9.400 ac 0.00% Impervious Runoff Depth=1.63"Subcatchment 61S: Powers (from SRF) Tc=9.0 min CN=87 Runoff=23.53 cfs 1.274 af Runoff Area=4.200 ac 0.00% Impervious Runoff Depth=1.21"Subcatchment 62S: NE Ramp (from SRF) Tc=8.0 min CN=81 Runoff=8.07 cfs 0.425 af Runoff Area=8.200 ac 0.00% Impervious Runoff Depth=1.63"Subcatchment 63S: TH 212 (from SRF) Tc=12.0 min CN=87 Runoff=18.02 cfs 1.111 af Runoff Area=7.800 ac 0.00% Impervious Runoff Depth=0.98"Subcatchment 64S: Englewood (from SRF) Tc=10.0 min CN=77 Runoff=10.71 cfs 0.638 af Runoff Area=6.400 ac 0.00% Impervious Runoff Depth=1.34"Subcatchment 65S: LYMLP (from SRF) Tc=15.0 min CN=83 Runoff=10.31 cfs 0.716 af Runoff Area=1.900 ac 0.00% Impervious Runoff Depth=2.22"Subcatchment 66S: N54 (from SRF) Tc=7.6 min CN=94 Runoff=6.75 cfs 0.352 af Runoff Area=0.440 ac 100.00% Impervious Runoff Depth=2.87"Subcatchment 67-1S: Fresh MDW Tc=7.0 min CN=100 Runoff=1.81 cfs 0.105 af Runoff Area=1.100 ac 0.00% Impervious Runoff Depth=0.69"Subcatchment 67-2S: Fresh MDW Subcatch Tc=7.0 min CN=71 Runoff=1.11 cfs 0.063 af MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 93HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Runoff Area=2.300 ac 0.00% Impervious Runoff Depth=0.00"Subcatchment 67-3S: Fresh MDW Subcatch Tc=83.0 min CN=10 Runoff=0.00 cfs 0.000 af Runoff Area=17.000 ac 0.00% Impervious Runoff Depth=0.83"Subcatchment 68S: M10 Tc=10.0 min CN=74 Runoff=18.87 cfs 1.171 af Inflow=18.40 cfs 2.949 afReach 1R: Lake Susan Drainage Outflow=18.40 cfs 2.949 af Avg. Flow Depth=0.95' Max Vel=2.57 fps Inflow=29.17 cfs 4.223 afReach 61R: NERDITCH n=0.035 L=545.0' S=0.0055 '/' Capacity=737.08 cfs Outflow=26.66 cfs 4.223 af Avg. Flow Depth=0.96' Max Vel=5.41 fps Inflow=8.07 cfs 0.425 afReach 62R: L42 24.0" Round Pipe n=0.012 L=200.0' S=0.0050 '/' Capacity=17.33 cfs Outflow=8.02 cfs 0.425 af Peak Elev=909.62' Storage=4,167 cf Inflow=16.13 cfs 1.585 afPond 2P: Wetland 2 Outflow=15.54 cfs 1.585 af Peak Elev=906.97' Storage=43,864 cf Inflow=26.94 cfs 2.781 afPond 3P: Basin 3 (Wetland 1) Outflow=15.76 cfs 2.327 af Peak Elev=897.24' Storage=348 cf Inflow=18.15 cfs 2.860 afPond 4P: Powers Culvert 54.0" Round Culvert n=0.013 L=191.0' S=0.0062 '/' Outflow=18.14 cfs 2.860 af Peak Elev=893.05' Storage=149,922 cf Inflow=62.25 cfs 6.398 afPond 61P: Englewood Pond Outflow=7.08 cfs 6.343 af Peak Elev=897.28' Storage=25,704 cf Inflow=17.19 cfs 1.236 afPond 65P: Fresh MDW Outflow=4.58 cfs 1.082 af Peak Elev=891.61' Storage=281,551 cf Inflow=20.64 cfs 8.597 afPond 68P: East MNDOT M10 Wetland Outflow=1.14 cfs 5.284 af Total Runoff Area = 97.033 ac Runoff Volume = 9.259 af Average Runoff Depth = 1.15" 98.79% Pervious = 95.862 ac 1.21% Impervious = 1.170 ac MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 94HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 0S: To Powers - North Runoff = 0.09 cfs @ 12.29 hrs, Volume= 0.012 af, Depth= 0.23" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Area (sf) CN Description 27,760 58 Meadow, non-grazed, HSG B 27,760 58 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 5.6 75 0.0530 0.22 Sheet Flow, Grass: Short n= 0.150 P2= 2.87" 0.9 137 0.1240 2.46 Shallow Concentrated Flow, Short Grass Pasture Kv= 7.0 fps 6.5 212 Total Subcatchment 0S: To Powers - North Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.095 0.09 0.085 0.08 0.075 0.07 0.065 0.06 0.055 0.05 0.045 0.04 0.035 0.03 0.025 0.02 0.015 0.01 0.005 0 MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Runoff Area=27,760 sf Runoff Volume=0.012 af Runoff Depth=0.23" Flow Length=212' Tc=6.5 min CN=58 0.09 cfs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 95HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 00S: To Powers - South Runoff = 0.60 cfs @ 12.11 hrs, Volume= 0.035 af, Depth= 0.63" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Area (sf) CN Description 14,560 55 Woods, Good, HSG B 14,560 79 Pasture/grassland/range, Poor, HSG B 29,120 Weighted Average 29,120 67 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 4.3 38 0.0200 0.15 Sheet Flow, Range n= 0.130 P2= 2.87" 2.9 160 0.0170 0.91 Shallow Concentrated Flow, Short Grass Pasture Kv= 7.0 fps 7.2 198 Total Subcatchment 00S: To Powers - South Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.65 0.6 0.55 0.5 0.45 0.4 0.35 0.3 0.25 0.2 0.15 0.1 0.05 0 MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Runoff Area=29,120 sf Runoff Volume=0.035 af Runoff Depth=0.63" Flow Length=198' Tc=7.2 min CN=WQ 0.60 cfs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 96HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 1S: To Lyman - NE Runoff = 0.30 cfs @ 12.28 hrs, Volume= 0.040 af, Depth= 0.23" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Area (sf) CN Description 90,310 58 Meadow, non-grazed, HSG B 90,310 58 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 2.6 50 0.1600 0.32 Sheet Flow, Grass: Short n= 0.150 P2= 2.87" 0.4 72 0.1600 2.80 Shallow Concentrated Flow, Short Grass Pasture Kv= 7.0 fps 2.0 Direct Entry, Make up to 5 Minutes 5.0 122 Total Subcatchment 1S: To Lyman - NE Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.32 0.3 0.28 0.26 0.24 0.22 0.2 0.18 0.16 0.14 0.12 0.1 0.08 0.06 0.04 0.02 0 MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Runoff Area=90,310 sf Runoff Volume=0.040 af Runoff Depth=0.23" Flow Length=122' Slope=0.1600 '/' Tc=5.0 min CN=58 0.30 cfs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 97HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 2S: Wetland 2 Runoff = 16.13 cfs @ 12.36 hrs, Volume= 1.585 af, Depth= 1.21" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Area (sf) CN Description 31,810 98 Water Surface, HSG D * 70,790 96 Wetland 79,915 79 Pasture/grassland/range, Poor, HSG B * 86,270 61 Grasses, Good, HSG B 418,735 79 Pasture/grassland/range, Poor, HSG B 687,520 Weighted Average 655,710 78 95.37% Pervious Area 31,810 98 4.63% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 9.2 135 0.0370 0.25 Sheet Flow, Range n= 0.130 P2= 2.87" 0.4 60 0.1310 2.53 Shallow Concentrated Flow, Short Grass Pasture Kv= 7.0 fps 0.1 46 0.6500 5.64 Shallow Concentrated Flow, Short Grass Pasture Kv= 7.0 fps 1.4 90 0.0220 1.04 Shallow Concentrated Flow, Short Grass Pasture Kv= 7.0 fps 0.9 52 0.0190 0.96 Shallow Concentrated Flow, Short Grass Pasture Kv= 7.0 fps 1.3 94 0.0320 1.25 Shallow Concentrated Flow, Short Grass Pasture Kv= 7.0 fps 2.3 210 0.0480 1.53 Shallow Concentrated Flow, Short Grass Pasture Kv= 7.0 fps 0.4 50 0.0200 2.12 Shallow Concentrated Flow, Wetland Grassed Waterway Kv= 15.0 fps 10.4 350 0.0014 0.56 Shallow Concentrated Flow, Wetland Grassed Waterway Kv= 15.0 fps 26.4 1,087 Total MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 98HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Subcatchment 2S: Wetland 2 Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Runoff Area=687,520 sf Runoff Volume=1.585 af Runoff Depth=1.21" Flow Length=1,087' Tc=26.4 min CN=WQ 16.13 cfs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 99HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 3S: Wetland 1 Runoff = 15.56 cfs @ 12.23 hrs, Volume= 1.196 af, Depth= 1.12" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Area (sf) CN Description * 56,025 96 Wetland, HSG D 55,045 79 Pasture/grassland/range, Poor, HSG B 62,080 55 Woods, Good, HSG B 349,085 79 Pasture/grassland/range, Poor, HSG B 37,910 77 Woods, Good, HSG D 560,145 Weighted Average 560,145 78 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 9.2 100 0.0200 0.18 Sheet Flow, Range n= 0.130 P2= 2.87" 7.2 438 0.0210 1.01 Shallow Concentrated Flow, Short Grass Pasture Kv= 7.0 fps 0.4 47 0.0150 1.84 Shallow Concentrated Flow, Wetland Grassed Waterway Kv= 15.0 fps 16.8 585 Total Subcatchment 3S: Wetland 1 Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Runoff Area=560,145 sf Runoff Volume=1.196 af Runoff Depth=1.12" Flow Length=585' Tc=16.8 min CN=WQ 15.56 cfs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 100HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 4oS: From Powers Runoff = 1.47 cfs @ 12.09 hrs, Volume= 0.071 af, Depth= 1.04" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Area (sf) CN Description 35,675 78 Meadow, non-grazed, HSG D 35,675 78 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 3.5 75 0.1670 0.36 Sheet Flow, Grass: Short n= 0.150 P2= 2.87" 2.5 245 0.0550 1.64 Shallow Concentrated Flow, Short Grass Pasture Kv= 7.0 fps 6.0 320 Total Subcatchment 4oS: From Powers Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)1 0 MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Runoff Area=35,675 sf Runoff Volume=0.071 af Runoff Depth=1.04" Flow Length=320' Tc=6.0 min CN=78 1.47 cfs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 101HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 4S: Wetland 8 Runoff = 5.82 cfs @ 12.26 hrs, Volume= 0.461 af, Depth= 1.04" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Area (sf) CN Description * 2,815 96 Wetland, HSG D 15,470 55 Woods, Good, HSG B 150,205 79 Pasture/grassland/range, Poor, HSG B 37,925 79 Pasture/grassland/range, Poor, HSG B 26,410 77 Woods, Good, HSG D 232,825 Weighted Average 232,825 77 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 10.4 50 0.0350 0.08 Sheet Flow, Woods: Light underbrush n= 0.400 P2= 2.87" 4.2 50 0.0350 0.20 Sheet Flow, Range n= 0.130 P2= 2.87" 3.5 325 0.0490 1.55 Shallow Concentrated Flow, Short Grass Pasture Kv= 7.0 fps 0.2 47 0.0600 3.67 Shallow Concentrated Flow, Wetland Grassed Waterway Kv= 15.0 fps 18.3 472 Total MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 102HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Subcatchment 4S: Wetland 8 Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)6 5 4 3 2 1 0 MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Runoff Area=232,825 sf Runoff Volume=0.461 af Runoff Depth=1.04" Flow Length=472' Tc=18.3 min CN=WQ 5.82 cfs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 103HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 16oS: East Offsite Runoff = 0.01 cfs @ 12.32 hrs, Volume= 0.002 af, Depth= 0.23" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Area (sf) CN Description 4,669 58 Meadow, non-grazed, HSG B 4,669 58 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 10.0 Direct Entry, Subcatchment 16oS: East Offsite Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.015 0.014 0.013 0.012 0.011 0.01 0.009 0.008 0.007 0.006 0.005 0.004 0.003 0.002 0.001 0 MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Runoff Area=4,669 sf Runoff Volume=0.002 af Runoff Depth=0.23" Tc=10.0 min CN=58 0.01 cfs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 104HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 61S: Powers (from SRF) Runoff = 23.53 cfs @ 12.12 hrs, Volume= 1.274 af, Depth= 1.63" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Area (ac) CN Description * 9.400 87 Weighted 9.400 87 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 9.0 Direct Entry, Subcatchment 61S: Powers (from SRF) Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Runoff Area=9.400 ac Runoff Volume=1.274 af Runoff Depth=1.63" Tc=9.0 min CN=87 23.53 cfs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 105HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 62S: NE Ramp (from SRF) Runoff = 8.07 cfs @ 12.11 hrs, Volume= 0.425 af, Depth= 1.21" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Area (ac) CN Description * 4.200 81 Weighted 4.200 81 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 8.0 Direct Entry, Subcatchment 62S: NE Ramp (from SRF) Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)9 8 7 6 5 4 3 2 1 0 MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Runoff Area=4.200 ac Runoff Volume=0.425 af Runoff Depth=1.21" Tc=8.0 min CN=81 8.07 cfs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 106HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 63S: TH 212 (from SRF) Runoff = 18.02 cfs @ 12.17 hrs, Volume= 1.111 af, Depth= 1.63" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Area (ac) CN Description * 8.200 87 Weighted 8.200 87 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 12.0 Direct Entry, Subcatchment 63S: TH 212 (from SRF) Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Runoff Area=8.200 ac Runoff Volume=1.111 af Runoff Depth=1.63" Tc=12.0 min CN=87 18.02 cfs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 107HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 64S: Englewood (from SRF) Runoff = 10.71 cfs @ 12.14 hrs, Volume= 0.638 af, Depth= 0.98" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Area (ac) CN Description * 7.800 77 Weighted 7.800 77 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 10.0 Direct Entry, Subcatchment 64S: Englewood (from SRF) Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)11 10 9 8 7 6 5 4 3 2 1 0 MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Runoff Area=7.800 ac Runoff Volume=0.638 af Runoff Depth=0.98" Tc=10.0 min CN=77 10.71 cfs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 108HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 65S: LYMLP (from SRF) Runoff = 10.31 cfs @ 12.21 hrs, Volume= 0.716 af, Depth= 1.34" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Area (ac) CN Description * 6.400 83 Weighted 6.400 83 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 15.0 Direct Entry, Subcatchment 65S: LYMLP (from SRF) Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)11 10 9 8 7 6 5 4 3 2 1 0 MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Runoff Area=6.400 ac Runoff Volume=0.716 af Runoff Depth=1.34" Tc=15.0 min CN=83 10.31 cfs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 109HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 66S: N54 (from SRF) Runoff = 6.75 cfs @ 12.10 hrs, Volume= 0.352 af, Depth= 2.22" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Area (ac) CN Description * 1.900 94 Weighted 1.900 94 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 7.6 Direct Entry, Subcatchment 66S: N54 (from SRF) Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)7 6 5 4 3 2 1 0 MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Runoff Area=1.900 ac Runoff Volume=0.352 af Runoff Depth=2.22" Tc=7.6 min CN=94 6.75 cfs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 110HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 67-1S: Fresh MDW Subcatch 1 (from SRF) Runoff = 1.81 cfs @ 12.09 hrs, Volume= 0.105 af, Depth= 2.87" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Area (ac) CN Description * 0.440 100 Weighted 0.440 100 100.00% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 7.0 Direct Entry, Subcatchment 67-1S: Fresh MDW Subcatch 1 (from SRF) Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)2 1 0 MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Runoff Area=0.440 ac Runoff Volume=0.105 af Runoff Depth=2.87" Tc=7.0 min CN=100 1.81 cfs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 111HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 67-2S: Fresh MDW Subcatch 2 (from SRF) Runoff = 1.11 cfs @ 12.11 hrs, Volume= 0.063 af, Depth= 0.69" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Area (ac) CN Description * 1.100 71 Weighted 1.100 71 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 7.0 Direct Entry, Subcatchment 67-2S: Fresh MDW Subcatch 2 (from SRF) Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)1 0 MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Runoff Area=1.100 ac Runoff Volume=0.063 af Runoff Depth=0.69" Tc=7.0 min CN=71 1.11 cfs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 112HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 67-3S: Fresh MDW Subcatch 3 (from SRF) [45] Hint: Runoff=Zero Runoff = 0.00 cfs @ 0.00 hrs, Volume= 0.000 af, Depth= 0.00" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Area (ac) CN Description * 2.300 10 Weighted 2.300 10 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 83.0 Direct Entry, Subcatchment 67-3S: Fresh MDW Subcatch 3 (from SRF) Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)1 0 MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Runoff Area=2.300 ac Runoff Volume=0.000 af Runoff Depth=0.00" Tc=83.0 min CN=10 0.00 cfs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 113HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 68S: M10 Runoff = 18.87 cfs @ 12.15 hrs, Volume= 1.171 af, Depth= 0.83" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Area (ac) CN Description * 17.000 74 Weighted 17.000 74 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 10.0 Direct Entry, Subcatchment 68S: M10 Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Runoff Area=17.000 ac Runoff Volume=1.171 af Runoff Depth=0.83" Tc=10.0 min CN=74 18.87 cfs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 114HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Reach 1R: Lake Susan Drainage [40] Hint: Not Described (Outflow=Inflow) Inflow Area = 38.293 ac, 1.91% Impervious, Inflow Depth = 0.92" for 2y 24hr event Inflow = 18.40 cfs @ 12.64 hrs, Volume= 2.949 af Outflow = 18.40 cfs @ 12.64 hrs, Volume= 2.949 af, Atten= 0%, Lag= 0.0 min Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Reach 1R: Lake Susan Drainage Inflow Outflow Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 Inflow Area=38.293 ac 18.40 cfs 18.40 cfs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 115HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Reach 61R: NERDITCH Inflow Area = 47.693 ac, 1.53% Impervious, Inflow Depth = 1.06" for 2y 24hr event Inflow = 29.17 cfs @ 12.13 hrs, Volume= 4.223 af Outflow = 26.66 cfs @ 12.17 hrs, Volume= 4.223 af, Atten= 9%, Lag= 2.7 min Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Max. Velocity= 2.57 fps, Min. Travel Time= 3.5 min Avg. Velocity = 0.45 fps, Avg. Travel Time= 20.2 min Peak Storage= 5,646 cf @ 12.17 hrs Average Depth at Peak Storage= 0.95' Bank-Full Depth= 5.00' Flow Area= 115.0 sf, Capacity= 737.08 cfs 8.00' x 5.00' deep channel, n= 0.035 Side Slope Z-value= 3.0 '/' Top Width= 38.00' Length= 545.0' Slope= 0.0055 '/' Inlet Invert= 895.00', Outlet Invert= 892.00' ‡ Reach 61R: NERDITCH Inflow Outflow Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)32 30 28 26 24 22 20 18 16 14 12 10 8 6 4 2 0 Inflow Area=47.693 ac Avg. Flow Depth=0.95' Max Vel=2.57 fps n=0.035 L=545.0' S=0.0055 '/' Capacity=737.08 cfs 29.17 cfs 26.66 cfs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 116HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Stage-Area-Storage for Reach 61R: NERDITCH Elevation (feet) End-Area (sq-ft) Storage (cubic-feet) 895.00 0.0 0 895.05 0.4 222 895.10 0.8 452 895.15 1.3 691 895.20 1.7 937 895.25 2.2 1,192 895.30 2.7 1,455 895.35 3.2 1,726 895.40 3.7 2,006 895.45 4.2 2,293 895.50 4.8 2,589 895.55 5.3 2,893 895.60 5.9 3,205 895.65 6.5 3,525 895.70 7.1 3,853 895.75 7.7 4,190 895.80 8.3 4,534 895.85 9.0 4,887 895.90 9.6 5,248 895.95 10.3 5,618 896.00 11.0 5,995 896.05 11.7 6,381 896.10 12.4 6,774 896.15 13.2 7,176 896.20 13.9 7,586 896.25 14.7 8,005 896.30 15.5 8,431 896.35 16.3 8,866 896.40 17.1 9,309 896.45 17.9 9,760 896.50 18.8 10,219 896.55 19.6 10,686 896.60 20.5 11,162 896.65 21.4 11,645 896.70 22.3 12,137 896.75 23.2 12,637 896.80 24.1 13,145 896.85 25.1 13,662 896.90 26.0 14,186 896.95 27.0 14,719 897.00 28.0 15,260 897.05 29.0 15,809 897.10 30.0 16,366 897.15 31.1 16,932 897.20 32.1 17,505 897.25 33.2 18,087 897.30 34.3 18,677 897.35 35.4 19,275 897.40 36.5 19,882 897.45 37.6 20,496 897.50 38.8 21,119 897.55 39.9 21,750 Elevation (feet) End-Area (sq-ft) Storage (cubic-feet) 897.60 41.1 22,389 897.65 42.3 23,036 897.70 43.5 23,691 897.75 44.7 24,355 897.80 45.9 25,026 897.85 47.2 25,706 897.90 48.4 26,394 897.95 49.7 27,091 898.00 51.0 27,795 898.05 52.3 28,508 898.10 53.6 29,228 898.15 55.0 29,957 898.20 56.3 30,694 898.25 57.7 31,440 898.30 59.1 32,193 898.35 60.5 32,955 898.40 61.9 33,725 898.45 63.3 34,503 898.50 64.8 35,289 898.55 66.2 36,083 898.60 67.7 36,886 898.65 69.2 37,696 898.70 70.7 38,515 898.75 72.2 39,342 898.80 73.7 40,177 898.85 75.3 41,021 898.90 76.8 41,872 898.95 78.4 42,732 899.00 80.0 43,600 899.05 81.6 44,476 899.10 83.2 45,360 899.15 84.9 46,253 899.20 86.5 47,153 899.25 88.2 48,062 899.30 89.9 48,979 899.35 91.6 49,904 899.40 93.3 50,838 899.45 95.0 51,779 899.50 96.8 52,729 899.55 98.5 53,687 899.60 100.3 54,653 899.65 102.1 55,627 899.70 103.9 56,609 899.75 105.7 57,600 899.80 107.5 58,598 899.85 109.4 59,605 899.90 111.2 60,620 899.95 113.1 61,644 900.00 115.0 62,675 MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 117HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Reach 62R: L42 [52] Hint: Inlet/Outlet conditions not evaluated Inflow Area = 4.200 ac, 0.00% Impervious, Inflow Depth = 1.21" for 2y 24hr event Inflow = 8.07 cfs @ 12.11 hrs, Volume= 0.425 af Outflow = 8.02 cfs @ 12.12 hrs, Volume= 0.425 af, Atten= 1%, Lag= 0.5 min Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Max. Velocity= 5.41 fps, Min. Travel Time= 0.6 min Avg. Velocity = 1.78 fps, Avg. Travel Time= 1.9 min Peak Storage= 297 cf @ 12.12 hrs Average Depth at Peak Storage= 0.96' Bank-Full Depth= 2.00' Flow Area= 3.1 sf, Capacity= 17.33 cfs 24.0" Round Pipe n= 0.012 Length= 200.0' Slope= 0.0050 '/' Inlet Invert= 893.00', Outlet Invert= 892.00' Reach 62R: L42 Inflow Outflow Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)9 8 7 6 5 4 3 2 1 0 Inflow Area=4.200 ac Avg. Flow Depth=0.96' Max Vel=5.41 fps 24.0" Round Pipe n=0.012 L=200.0' S=0.0050 '/' Capacity=17.33 cfs 8.07 cfs 8.02 cfs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 118HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Stage-Area-Storage for Reach 62R: L42 Elevation (feet) End-Area (sq-ft) Storage (cubic-feet) 893.00 0.0 0 893.02 0.0 1 893.04 0.0 3 893.06 0.0 5 893.08 0.0 8 893.10 0.1 12 893.12 0.1 15 893.14 0.1 19 893.16 0.1 24 893.18 0.1 28 893.20 0.2 33 893.22 0.2 38 893.24 0.2 43 893.26 0.2 48 893.28 0.3 53 893.30 0.3 59 893.32 0.3 65 893.34 0.4 71 893.36 0.4 77 893.38 0.4 83 893.40 0.4 89 893.42 0.5 96 893.44 0.5 102 893.46 0.5 109 893.48 0.6 116 893.50 0.6 123 893.52 0.6 130 893.54 0.7 137 893.56 0.7 144 893.58 0.8 151 893.60 0.8 159 893.62 0.8 166 893.64 0.9 173 893.66 0.9 181 893.68 0.9 188 893.70 1.0 196 893.72 1.0 204 893.74 1.1 211 893.76 1.1 219 893.78 1.1 227 893.80 1.2 235 893.82 1.2 243 893.84 1.3 250 893.86 1.3 258 893.88 1.3 266 893.90 1.4 274 893.92 1.4 282 893.94 1.5 290 893.96 1.5 298 893.98 1.5 306 894.00 1.6 314 894.02 1.6 322 Elevation (feet) End-Area (sq-ft) Storage (cubic-feet) 894.04 1.7 330 894.06 1.7 338 894.08 1.7 346 894.10 1.8 354 894.12 1.8 362 894.14 1.8 370 894.16 1.9 378 894.18 1.9 386 894.20 2.0 394 894.22 2.0 401 894.24 2.0 409 894.26 2.1 417 894.28 2.1 425 894.30 2.2 432 894.32 2.2 440 894.34 2.2 447 894.36 2.3 455 894.38 2.3 462 894.40 2.3 470 894.42 2.4 477 894.44 2.4 484 894.46 2.5 491 894.48 2.5 499 894.50 2.5 505 894.52 2.6 512 894.54 2.6 519 894.56 2.6 526 894.58 2.7 532 894.60 2.7 539 894.62 2.7 545 894.64 2.8 551 894.66 2.8 557 894.68 2.8 563 894.70 2.8 569 894.72 2.9 575 894.74 2.9 580 894.76 2.9 586 894.78 3.0 591 894.80 3.0 596 894.82 3.0 600 894.84 3.0 605 894.86 3.0 609 894.88 3.1 613 894.90 3.1 617 894.92 3.1 620 894.94 3.1 623 894.96 3.1 625 894.98 3.1 627 895.00 3.1 628 MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 119HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Pond 2P: Wetland 2 Inflow Area = 15.783 ac, 4.63% Impervious, Inflow Depth = 1.21" for 2y 24hr event Inflow = 16.13 cfs @ 12.36 hrs, Volume= 1.585 af Outflow = 15.54 cfs @ 12.43 hrs, Volume= 1.585 af, Atten= 4%, Lag= 4.1 min Primary = 15.54 cfs @ 12.43 hrs, Volume= 1.585 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 909.62' @ 12.43 hrs Surf.Area= 42,051 sf Storage= 4,167 cf Plug-Flow detention time= 7.7 min calculated for 1.585 af (100% of inflow) Center-of-Mass det. time= 7.7 min ( 842.6 - 835.0 ) Volume Invert Avail.Storage Storage Description #1 909.50' 137,271 cf Custom Stage Data (Prismatic) Listed below (Recalc) Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 909.50 25,770 0 0 910.00 92,020 29,448 29,448 911.00 123,627 107,824 137,271 Device Routing Invert Outlet Devices #1 Primary 909.50'Asymmetrical Weir, C= 3.27 Offset (feet) 0.00 45.00 95.00 196.00 241.00 301.00 Height (feet) 1.50 0.50 0.00 0.00 0.50 1.50 Primary OutFlow Max=15.54 cfs @ 12.43 hrs HW=909.62' TW=906.87' (Dynamic Tailwater) 1=Asymmetrical Weir (Weir Controls 15.54 cfs @ 1.02 fps) MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 120HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Pond 2P: Wetland 2 Inflow Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 Inflow Area=15.783 ac Peak Elev=909.62' Storage=4,167 cf 16.13 cfs 15.54 cfs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 121HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Stage-Area-Storage for Pond 2P: Wetland 2 Elevation (feet) Surface (sq-ft) Storage (cubic-feet) 909.50 25,770 0 909.52 28,420 542 909.54 31,070 1,137 909.56 33,720 1,785 909.58 36,370 2,486 909.60 39,020 3,240 909.62 41,670 4,046 909.64 44,320 4,906 909.66 46,970 5,819 909.68 49,620 6,785 909.70 52,270 7,804 909.72 54,920 8,876 909.74 57,570 10,001 909.76 60,220 11,179 909.78 62,870 12,410 909.80 65,520 13,693 909.82 68,170 15,030 909.84 70,820 16,420 909.86 73,470 17,863 909.88 76,120 19,359 909.90 78,770 20,908 909.92 81,420 22,510 909.94 84,070 24,165 909.96 86,720 25,873 909.98 89,370 27,634 910.00 92,020 29,448 910.02 92,652 31,294 910.04 93,284 33,154 910.06 93,916 35,026 910.08 94,549 36,910 910.10 95,181 38,808 910.12 95,813 40,717 910.14 96,445 42,640 910.16 97,077 44,575 910.18 97,709 46,523 910.20 98,341 48,484 910.22 98,974 50,457 910.24 99,606 52,443 910.26 100,238 54,441 910.28 100,870 56,452 910.30 101,502 58,476 910.32 102,134 60,512 910.34 102,766 62,561 910.36 103,399 64,623 910.38 104,031 66,697 910.40 104,663 68,784 910.42 105,295 70,884 910.44 105,927 72,996 910.46 106,559 75,121 910.48 107,191 77,258 910.50 107,824 79,408 910.52 108,456 81,571 Elevation (feet) Surface (sq-ft) Storage (cubic-feet) 910.54 109,088 83,747 910.56 109,720 85,935 910.58 110,352 88,135 910.60 110,984 90,349 910.62 111,616 92,575 910.64 112,248 94,813 910.66 112,881 97,065 910.68 113,513 99,329 910.70 114,145 101,605 910.72 114,777 103,894 910.74 115,409 106,196 910.76 116,041 108,511 910.78 116,673 110,838 910.80 117,306 113,178 910.82 117,938 115,530 910.84 118,570 117,895 910.86 119,202 120,273 910.88 119,834 122,663 910.90 120,466 125,066 910.92 121,098 127,482 910.94 121,731 129,910 910.96 122,363 132,351 910.98 122,995 134,805 911.00 123,627 137,271 MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 122HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Pond 3P: Basin 3 (Wetland 1) Inflow Area = 28.642 ac, 2.55% Impervious, Inflow Depth = 1.17" for 2y 24hr event Inflow = 26.94 cfs @ 12.32 hrs, Volume= 2.781 af Outflow = 15.76 cfs @ 12.67 hrs, Volume= 2.327 af, Atten= 41%, Lag= 20.7 min Primary = 15.76 cfs @ 12.67 hrs, Volume= 2.327 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 906.97' @ 12.67 hrs Surf.Area= 62,212 sf Storage= 43,864 cf Plug-Flow detention time= 204.2 min calculated for 2.327 af (84% of inflow) Center-of-Mass det. time= 135.3 min ( 973.8 - 838.6 ) Volume Invert Avail.Storage Storage Description #1 905.50' 251,588 cf Custom Stage Data (Prismatic) Listed below (Recalc) Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 905.50 0 0 0 906.00 18,685 4,671 4,671 907.00 63,607 41,146 45,817 908.00 100,875 82,241 128,058 909.00 146,184 123,530 251,588 Device Routing Invert Outlet Devices #1 Primary 906.50'Asymmetrical Weir, C= 3.27 Offset (feet) 0.00 28.00 115.00 135.00 155.00 184.00 204.00 Height (feet) 2.50 1.50 0.50 0.00 0.50 1.50 2.50 Primary OutFlow Max=15.76 cfs @ 12.67 hrs HW=906.97' TW=897.24' (Dynamic Tailwater) 1=Asymmetrical Weir (Weir Controls 15.76 cfs @ 0.90 fps) MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 123HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Pond 3P: Basin 3 (Wetland 1) Inflow Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)30 28 26 24 22 20 18 16 14 12 10 8 6 4 2 0 Inflow Area=28.642 ac Peak Elev=906.97' Storage=43,864 cf 26.94 cfs 15.76 cfs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 124HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Stage-Area-Storage for Pond 3P: Basin 3 (Wetland 1) Elevation (feet) Surface (sq-ft) Storage (cubic-feet) 905.50 0 0 905.55 1,868 47 905.60 3,737 187 905.65 5,605 420 905.70 7,474 747 905.75 9,343 1,168 905.80 11,211 1,682 905.85 13,080 2,289 905.90 14,948 2,990 905.95 16,817 3,784 906.00 18,685 4,671 906.05 20,931 5,662 906.10 23,177 6,764 906.15 25,423 7,979 906.20 27,669 9,307 906.25 29,916 10,746 906.30 32,162 12,298 906.35 34,408 13,962 906.40 36,654 15,739 906.45 38,900 17,628 906.50 41,146 19,629 906.55 43,392 21,742 906.60 45,638 23,968 906.65 47,884 26,306 906.70 50,130 28,757 906.75 52,377 31,319 906.80 54,623 33,994 906.85 56,869 36,782 906.90 59,115 39,681 906.95 61,361 42,693 907.00 63,607 45,817 907.05 65,470 49,044 907.10 67,334 52,364 907.15 69,197 55,778 907.20 71,061 59,284 907.25 72,924 62,884 907.30 74,787 66,576 907.35 76,651 70,362 907.40 78,514 74,241 907.45 80,378 78,214 907.50 82,241 82,279 907.55 84,104 86,438 907.60 85,968 90,690 907.65 87,831 95,035 907.70 89,695 99,473 907.75 91,558 104,004 907.80 93,421 108,629 907.85 95,285 113,346 907.90 97,148 118,157 907.95 99,012 123,061 908.00 100,875 128,058 908.05 103,140 133,159 Elevation (feet) Surface (sq-ft) Storage (cubic-feet) 908.10 105,406 138,372 908.15 107,671 143,699 908.20 109,937 149,139 908.25 112,202 154,693 908.30 114,468 160,360 908.35 116,733 166,140 908.40 118,999 172,033 908.45 121,264 178,040 908.50 123,530 184,159 908.55 125,795 190,392 908.60 128,060 196,739 908.65 130,326 203,199 908.70 132,591 209,771 908.75 134,857 216,458 908.80 137,122 223,257 908.85 139,388 230,170 908.90 141,653 237,196 908.95 143,919 244,335 909.00 146,184 251,588 MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 125HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Pond 4P: Powers Culvert Inflow Area = 34.806 ac, 2.10% Impervious, Inflow Depth = 0.99" for 2y 24hr event Inflow = 18.15 cfs @ 12.64 hrs, Volume= 2.860 af Outflow = 18.14 cfs @ 12.64 hrs, Volume= 2.860 af, Atten= 0%, Lag= 0.4 min Primary = 18.14 cfs @ 12.64 hrs, Volume= 2.860 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 897.24' @ 12.64 hrs Surf.Area= 547 sf Storage= 348 cf Plug-Flow detention time= (not calculated: outflow precedes inflow) Center-of-Mass det. time= 0.2 min ( 950.0 - 949.8 ) Volume Invert Avail.Storage Storage Description #1 895.70' 165,537 cf Custom Stage Data (Prismatic) Listed below (Recalc) Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 895.70 1 0 0 896.00 12 2 2 898.00 877 889 891 899.00 2,760 1,819 2,709 900.00 8,250 5,505 8,214 901.00 16,910 12,580 20,794 902.00 26,632 21,771 42,565 903.00 36,506 31,569 74,134 904.00 44,700 40,603 114,737 905.00 56,900 50,800 165,537 Device Routing Invert Outlet Devices #1 Primary 895.71'54.0" Round Culvert L= 191.0' RCP, end-section conforming to fill, Ke= 0.500 Inlet / Outlet Invert= 895.71' / 894.53' S= 0.0062 '/' Cc= 0.900 n= 0.013 Concrete pipe, straight & clean, Flow Area= 15.90 sf Primary OutFlow Max=18.14 cfs @ 12.64 hrs HW=897.24' TW=0.00' (Dynamic Tailwater) 1=Culvert (Barrel Controls 18.14 cfs @ 5.69 fps) MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 126HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Pond 4P: Powers Culvert Inflow Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 Inflow Area=34.806 ac Peak Elev=897.24' Storage=348 cf 54.0" Round Culvert n=0.013 L=191.0' S=0.0062 '/' 18.15 cfs 18.14 cfs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 127HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Stage-Area-Storage for Pond 4P: Powers Culvert Elevation (feet) Surface (sq-ft) Storage (cubic-feet) 895.70 1 0 895.80 5 0 895.90 8 1 896.00 12 2 896.10 55 5 896.20 99 13 896.30 142 25 896.40 185 41 896.50 228 62 896.60 272 87 896.70 315 116 896.80 358 150 896.90 401 188 897.00 445 230 897.10 488 277 897.20 531 328 897.30 574 383 897.40 618 443 897.50 661 507 897.60 704 575 897.70 747 647 897.80 791 724 897.90 834 805 898.00 877 891 898.10 1,065 988 898.20 1,254 1,104 898.30 1,442 1,239 898.40 1,630 1,392 898.50 1,819 1,565 898.60 2,007 1,756 898.70 2,195 1,966 898.80 2,383 2,195 898.90 2,572 2,443 899.00 2,760 2,709 899.10 3,309 3,013 899.20 3,858 3,371 899.30 4,407 3,785 899.40 4,956 4,253 899.50 5,505 4,776 899.60 6,054 5,354 899.70 6,603 5,987 899.80 7,152 6,674 899.90 7,701 7,417 900.00 8,250 8,214 900.10 9,116 9,083 900.20 9,982 10,038 900.30 10,848 11,079 900.40 11,714 12,207 900.50 12,580 13,422 900.60 13,446 14,723 900.70 14,312 16,111 900.80 15,178 17,586 Elevation (feet) Surface (sq-ft) Storage (cubic-feet) 900.90 16,044 19,147 901.00 16,910 20,794 901.10 17,882 22,534 901.20 18,854 24,371 901.30 19,827 26,305 901.40 20,799 28,336 901.50 21,771 30,465 901.60 22,743 32,690 901.70 23,715 35,013 901.80 24,688 37,433 901.90 25,660 39,951 902.00 26,632 42,565 902.10 27,619 45,278 902.20 28,607 48,089 902.30 29,594 50,999 902.40 30,582 54,008 902.50 31,569 57,116 902.60 32,556 60,322 902.70 33,544 63,627 902.80 34,531 67,031 902.90 35,519 70,533 903.00 36,506 74,134 903.10 37,325 77,826 903.20 38,145 81,600 903.30 38,964 85,455 903.40 39,784 89,392 903.50 40,603 93,412 903.60 41,422 97,513 903.70 42,242 101,696 903.80 43,061 105,961 903.90 43,881 110,308 904.00 44,700 114,737 904.10 45,920 119,268 904.20 47,140 123,921 904.30 48,360 128,696 904.40 49,580 133,593 904.50 50,800 138,612 904.60 52,020 143,753 904.70 53,240 149,016 904.80 54,460 154,401 904.90 55,680 159,908 905.00 56,900 165,537 MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 128HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Pond 61P: Englewood Pond [62] Hint: Exceeded Reach 61R OUTLET depth by 0.74' @ 15.49 hrs [62] Hint: Exceeded Reach 62R OUTLET depth by 0.88' @ 15.26 hrs Inflow Area = 67.893 ac, 1.08% Impervious, Inflow Depth = 1.13" for 2y 24hr event Inflow = 62.25 cfs @ 12.16 hrs, Volume= 6.398 af Outflow = 7.08 cfs @ 14.01 hrs, Volume= 6.343 af, Atten= 89%, Lag= 111.4 min Primary = 7.08 cfs @ 14.01 hrs, Volume= 6.343 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 893.05' @ 14.01 hrs Surf.Area= 147,650 sf Storage= 149,922 cf Plug-Flow detention time= 733.4 min calculated for 6.343 af (99% of inflow) Center-of-Mass det. time= 712.0 min ( 1,596.8 - 884.7 ) Volume Invert Avail.Storage Storage Description #1 892.00' 1,031,055 cf Custom Stage Data (Prismatic) Listed below (Recalc) Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 892.00 136,580 0 0 895.00 168,060 456,960 456,960 898.00 214,670 574,095 1,031,055 Device Routing Invert Outlet Devices #1 Primary 892.00'42.0" Round Culvert L= 29.0' RCP, square edge headwall, Ke= 0.500 Inlet / Outlet Invert= 892.00' / 891.71' S= 0.0100 '/' Cc= 0.900 n= 0.013 Concrete pipe, straight & clean, Flow Area= 9.62 sf #2 Device 1 887.63'42.0" Round Culvert L= 13.0' RCP, end-section conforming to fill, Ke= 0.500 Inlet / Outlet Invert= 887.50' / 887.63' S= -0.0100 '/' Cc= 0.900 n= 0.013 Concrete pipe, straight & clean, Flow Area= 9.62 sf Primary OutFlow Max=7.08 cfs @ 14.01 hrs HW=893.05' TW=890.77' (Dynamic Tailwater) 1=Culvert (Barrel Controls 7.08 cfs @ 4.34 fps) 2=Culvert (Passes 7.08 cfs of 47.58 cfs potential flow) MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 129HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Pond 61P: Englewood Pond Inflow Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)65 60 55 50 45 40 35 30 25 20 15 10 5 0 Inflow Area=67.893 ac Peak Elev=893.05' Storage=149,922 cf 62.25 cfs 7.08 cfs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 130HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Stage-Area-Storage for Pond 61P: Englewood Pond Elevation (feet) Surface (sq-ft) Storage (cubic-feet) 892.00 136,580 0 892.10 137,629 13,710 892.20 138,679 27,526 892.30 139,728 41,446 892.40 140,777 55,471 892.50 141,827 69,602 892.60 142,876 83,837 892.70 143,925 98,177 892.80 144,975 112,622 892.90 146,024 127,172 893.00 147,073 141,827 893.10 148,123 156,586 893.20 149,172 171,451 893.30 150,221 186,421 893.40 151,271 201,495 893.50 152,320 216,675 893.60 153,369 231,959 893.70 154,419 247,349 893.80 155,468 262,843 893.90 156,517 278,442 894.00 157,567 294,147 894.10 158,616 309,956 894.20 159,665 325,870 894.30 160,715 341,889 894.40 161,764 358,013 894.50 162,813 374,242 894.60 163,863 390,575 894.70 164,912 407,014 894.80 165,961 423,558 894.90 167,011 440,206 895.00 168,060 456,960 895.10 169,614 473,844 895.20 171,167 490,883 895.30 172,721 508,077 895.40 174,275 525,427 895.50 175,828 542,932 895.60 177,382 560,593 895.70 178,936 578,408 895.80 180,489 596,380 895.90 182,043 614,506 896.00 183,597 632,788 896.10 185,150 651,226 896.20 186,704 669,818 896.30 188,258 688,566 896.40 189,811 707,470 896.50 191,365 726,529 896.60 192,919 745,743 896.70 194,472 765,112 896.80 196,026 784,637 896.90 197,580 804,318 897.00 199,133 824,153 897.10 200,687 844,144 Elevation (feet) Surface (sq-ft) Storage (cubic-feet) 897.20 202,241 864,291 897.30 203,794 884,592 897.40 205,348 905,050 897.50 206,902 925,662 897.60 208,455 946,430 897.70 210,009 967,353 897.80 211,563 988,432 897.90 213,116 1,009,666 898.00 214,670 1,031,055 MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 131HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Pond 65P: Fresh MDW Inflow Area = 12.140 ac, 3.62% Impervious, Inflow Depth = 1.22" for 2y 24hr event Inflow = 17.19 cfs @ 12.14 hrs, Volume= 1.236 af Outflow = 4.58 cfs @ 12.60 hrs, Volume= 1.082 af, Atten= 73%, Lag= 27.9 min Primary = 4.58 cfs @ 12.60 hrs, Volume= 1.082 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 897.28' @ 12.60 hrs Surf.Area= 21,640 sf Storage= 25,704 cf Plug-Flow detention time= 281.3 min calculated for 1.082 af (88% of inflow) Center-of-Mass det. time= 225.0 min ( 1,035.9 - 810.9 ) Volume Invert Avail.Storage Storage Description #1 896.00' 123,320 cf Custom Stage Data (Prismatic) Listed below (Recalc) Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 896.00 18,540 0 0 900.00 28,230 93,540 93,540 901.00 31,330 29,780 123,320 Device Routing Invert Outlet Devices #1 Primary 892.35'12.0" Round Culvert L= 35.0' RCP, square edge headwall, Ke= 0.500 Inlet / Outlet Invert= 892.00' / 892.35' S= -0.0100 '/' Cc= 0.900 n= 0.012, Flow Area= 0.79 sf #2 Device 1 896.35'33.0" Round Culvert L= 69.0' RCP, end-section conforming to fill, Ke= 0.500 Inlet / Outlet Invert= 896.35' / 896.01' S= 0.0049 '/' Cc= 0.900 n= 0.012 Concrete pipe, finished, Flow Area= 5.94 sf Primary OutFlow Max=4.58 cfs @ 12.60 hrs HW=897.28' TW=890.37' (Dynamic Tailwater) 1=Culvert (Passes 4.58 cfs of 7.96 cfs potential flow) 2=Culvert (Barrel Controls 4.58 cfs @ 3.87 fps) MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 132HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Pond 65P: Fresh MDW Inflow Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 Inflow Area=12.140 ac Peak Elev=897.28' Storage=25,704 cf 17.19 cfs 4.58 cfs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 133HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Stage-Area-Storage for Pond 65P: Fresh MDW Elevation (feet) Surface (sq-ft) Storage (cubic-feet) 896.00 18,540 0 896.05 18,661 930 896.10 18,782 1,866 896.15 18,903 2,808 896.20 19,025 3,756 896.25 19,146 4,711 896.30 19,267 5,671 896.35 19,388 6,637 896.40 19,509 7,610 896.45 19,630 8,588 896.50 19,751 9,573 896.55 19,872 10,563 896.60 19,994 11,560 896.65 20,115 12,563 896.70 20,236 13,572 896.75 20,357 14,586 896.80 20,478 15,607 896.85 20,599 16,634 896.90 20,720 17,667 896.95 20,841 18,706 897.00 20,963 19,751 897.05 21,084 20,802 897.10 21,205 21,860 897.15 21,326 22,923 897.20 21,447 23,992 897.25 21,568 25,068 897.30 21,689 26,149 897.35 21,810 27,237 897.40 21,931 28,330 897.45 22,053 29,430 897.50 22,174 30,535 897.55 22,295 31,647 897.60 22,416 32,765 897.65 22,537 33,889 897.70 22,658 35,019 897.75 22,779 36,154 897.80 22,900 37,296 897.85 23,022 38,445 897.90 23,143 39,599 897.95 23,264 40,759 898.00 23,385 41,925 898.05 23,506 43,097 898.10 23,627 44,276 898.15 23,748 45,460 898.20 23,870 46,650 898.25 23,991 47,847 898.30 24,112 49,050 898.35 24,233 50,258 898.40 24,354 51,473 898.45 24,475 52,694 898.50 24,596 53,920 898.55 24,717 55,153 Elevation (feet) Surface (sq-ft) Storage (cubic-feet) 898.60 24,839 56,392 898.65 24,960 57,637 898.70 25,081 58,888 898.75 25,202 60,145 898.80 25,323 61,408 898.85 25,444 62,677 898.90 25,565 63,953 898.95 25,686 65,234 899.00 25,808 66,521 899.05 25,929 67,815 899.10 26,050 69,114 899.15 26,171 70,420 899.20 26,292 71,731 899.25 26,413 73,049 899.30 26,534 74,373 899.35 26,655 75,702 899.40 26,776 77,038 899.45 26,898 78,380 899.50 27,019 79,728 899.55 27,140 81,082 899.60 27,261 82,442 899.65 27,382 83,808 899.70 27,503 85,180 899.75 27,624 86,558 899.80 27,745 87,942 899.85 27,867 89,333 899.90 27,988 90,729 899.95 28,109 92,132 900.00 28,230 93,540 900.05 28,385 94,955 900.10 28,540 96,379 900.15 28,695 97,809 900.20 28,850 99,248 900.25 29,005 100,694 900.30 29,160 102,148 900.35 29,315 103,610 900.40 29,470 105,080 900.45 29,625 106,557 900.50 29,780 108,043 900.55 29,935 109,535 900.60 30,090 111,036 900.65 30,245 112,544 900.70 30,400 114,061 900.75 30,555 115,584 900.80 30,710 117,116 900.85 30,865 118,655 900.90 31,020 120,202 900.95 31,175 121,757 901.00 31,330 123,320 MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 134HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Pond 68P: East MNDOT M10 Wetland Inflow Area = 97.033 ac, 1.21% Impervious, Inflow Depth = 1.06" for 2y 24hr event Inflow = 20.64 cfs @ 12.16 hrs, Volume= 8.597 af Outflow = 1.14 cfs @ 29.51 hrs, Volume= 5.284 af, Atten= 94%, Lag= 1,041.2 min Primary = 1.14 cfs @ 29.51 hrs, Volume= 5.284 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 891.61' @ 29.51 hrs Surf.Area= 285,202 sf Storage= 281,551 cf Plug-Flow detention time= 3,461.8 min calculated for 5.284 af (61% of inflow) Center-of-Mass det. time= 2,939.2 min ( 4,363.9 - 1,424.8 ) Volume Invert Avail.Storage Storage Description #1 890.00' 1,574,445 cf Custom Stage Data (Prismatic) Listed below (Recalc) Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 890.00 68,660 0 0 891.00 198,790 133,725 133,725 892.00 340,250 269,520 403,245 895.00 440,550 1,171,200 1,574,445 Device Routing Invert Outlet Devices #1 Primary 890.30'18.0" Round Culvert L= 155.0' RCP, square edge headwall, Ke= 0.500 Inlet / Outlet Invert= 890.30' / 889.53' S= 0.0050 '/' Cc= 0.900 n= 0.013 Concrete pipe, straight & clean, Flow Area= 1.77 sf #2 Device 1 891.00'10.0" Vert. Orifice/Grate C= 0.600 #3 Device 2 890.50'18.0" Round Culvert L= 40.0' RCP, end-section conforming to fill, Ke= 0.500 Inlet / Outlet Invert= 890.30' / 890.50' S= -0.0050 '/' Cc= 0.900 n= 0.013 Concrete pipe, straight & clean, Flow Area= 1.77 sf Primary OutFlow Max=1.14 cfs @ 29.51 hrs HW=891.61' (Free Discharge) 1=Culvert (Passes 1.14 cfs of 5.27 cfs potential flow) 2=Orifice/Grate (Orifice Controls 1.14 cfs @ 2.66 fps) 3=Culvert (Passes 1.14 cfs of 3.89 cfs potential flow) MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 135HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Pond 68P: East MNDOT M10 Wetland Inflow Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 Inflow Area=97.033 ac Peak Elev=891.61' Storage=281,551 cf 20.64 cfs 1.14 cfs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 136HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Stage-Area-Storage for Pond 68P: East MNDOT M10 Wetland Elevation (feet) Surface (sq-ft) Storage (cubic-feet) 890.00 68,660 0 890.05 75,166 3,596 890.10 81,673 7,517 890.15 88,179 11,763 890.20 94,686 16,335 890.25 101,193 21,232 890.30 107,699 26,454 890.35 114,206 32,001 890.40 120,712 37,874 890.45 127,219 44,073 890.50 133,725 50,596 890.55 140,231 57,445 890.60 146,738 64,619 890.65 153,244 72,119 890.70 159,751 79,944 890.75 166,258 88,094 890.80 172,764 96,570 890.85 179,271 105,370 890.90 185,777 114,497 890.95 192,284 123,948 891.00 198,790 133,725 891.05 205,863 143,841 891.10 212,936 154,311 891.15 220,009 165,135 891.20 227,082 176,312 891.25 234,155 187,843 891.30 241,228 199,728 891.35 248,301 211,966 891.40 255,374 224,558 891.45 262,447 237,503 891.50 269,520 250,803 891.55 276,593 264,455 891.60 283,666 278,462 891.65 290,739 292,822 891.70 297,812 307,536 891.75 304,885 322,603 891.80 311,958 338,024 891.85 319,031 353,799 891.90 326,104 369,927 891.95 333,177 386,409 892.00 340,250 403,245 892.05 341,922 420,299 892.10 343,593 437,437 892.15 345,265 454,659 892.20 346,937 471,964 892.25 348,608 489,352 892.30 350,280 506,824 892.35 351,952 524,380 892.40 353,623 542,020 892.45 355,295 559,743 892.50 356,967 577,549 892.55 358,638 595,439 Elevation (feet) Surface (sq-ft) Storage (cubic-feet) 892.60 360,310 613,413 892.65 361,982 631,470 892.70 363,653 649,611 892.75 365,325 667,836 892.80 366,997 686,144 892.85 368,668 704,535 892.90 370,340 723,010 892.95 372,012 741,569 893.00 373,683 760,212 893.05 375,355 778,938 893.10 377,027 797,747 893.15 378,698 816,640 893.20 380,370 835,617 893.25 382,042 854,677 893.30 383,713 873,821 893.35 385,385 893,049 893.40 387,057 912,360 893.45 388,728 931,754 893.50 390,400 951,233 893.55 392,072 970,794 893.60 393,743 990,440 893.65 395,415 1,010,169 893.70 397,087 1,029,981 893.75 398,758 1,049,877 893.80 400,430 1,069,857 893.85 402,102 1,089,920 893.90 403,773 1,110,067 893.95 405,445 1,130,298 894.00 407,117 1,150,612 894.05 408,788 1,171,009 894.10 410,460 1,191,491 894.15 412,132 1,212,055 894.20 413,803 1,232,704 894.25 415,475 1,253,436 894.30 417,147 1,274,251 894.35 418,818 1,295,150 894.40 420,490 1,316,133 894.45 422,162 1,337,199 894.50 423,833 1,358,349 894.55 425,505 1,379,583 894.60 427,177 1,400,900 894.65 428,848 1,422,300 894.70 430,520 1,443,785 894.75 432,192 1,465,352 894.80 433,863 1,487,004 894.85 435,535 1,508,739 894.90 437,207 1,530,557 894.95 438,878 1,552,459 895.00 440,550 1,574,445 MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 137HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Time span=0.00-360.00 hrs, dt=0.01 hrs, 36001 points Runoff by SCS TR-20 method, UH=SCS, Weighted-Q Reach routing by Dyn-Stor-Ind method - Pond routing by Dyn-Stor-Ind method Runoff Area=27,760 sf 0.00% Impervious Runoff Depth=6.96"Subcatchment 0S: To Powers - North Flow Length=212' Tc=6.5 min AMC Adjusted CN=98 Runoff=0.12 cfs 0.370 af Runoff Area=29,120 sf 0.00% Impervious Runoff Depth=6.96"Subcatchment 00S: To Powers - South Flow Length=198' Tc=7.2 min AMC Adjusted CN=WQ Runoff=0.13 cfs 0.388 af Runoff Area=90,310 sf 0.00% Impervious Runoff Depth=6.96"Subcatchment 1S: To Lyman - NE Flow Length=122' Slope=0.1600 '/' Tc=5.0 min AMC Adjusted CN=98 Runoff=0.40 cfs 1.203 af Runoff Area=687,520 sf 4.63% Impervious Runoff Depth=6.96"Subcatchment 2S: Wetland 2 Flow Length=1,087' Tc=26.4 min AMC Adjusted CN=WQ Runoff=2.99 cfs 9.155 af Runoff Area=560,145 sf 0.00% Impervious Runoff Depth=6.96"Subcatchment 3S: Wetland 1 Flow Length=585' Tc=16.8 min AMC Adjusted CN=WQ Runoff=2.45 cfs 7.459 af Runoff Area=35,675 sf 0.00% Impervious Runoff Depth=6.96"Subcatchment 4oS: From Powers Flow Length=320' Tc=6.0 min AMC Adjusted CN=98 Runoff=0.16 cfs 0.475 af Runoff Area=232,825 sf 0.00% Impervious Runoff Depth=6.96"Subcatchment 4S: Wetland 8 Flow Length=472' Tc=18.3 min AMC Adjusted CN=WQ Runoff=1.02 cfs 3.100 af Runoff Area=4,669 sf 0.00% Impervious Runoff Depth=6.96"Subcatchment 16oS: East Offsite Tc=10.0 min AMC Adjusted CN=98 Runoff=0.02 cfs 0.062 af Runoff Area=9.400 ac 0.00% Impervious Runoff Depth=6.96"Subcatchment 61S: Powers (from SRF) Tc=9.0 min AMC Adjusted CN=98 Runoff=1.80 cfs 5.453 af Runoff Area=4.200 ac 0.00% Impervious Runoff Depth=6.96"Subcatchment 62S: NE Ramp (from SRF) Tc=8.0 min AMC Adjusted CN=98 Runoff=0.80 cfs 2.436 af Runoff Area=8.200 ac 0.00% Impervious Runoff Depth=6.96"Subcatchment 63S: TH 212 (from SRF) Tc=12.0 min AMC Adjusted CN=98 Runoff=1.56 cfs 4.757 af Runoff Area=7.800 ac 0.00% Impervious Runoff Depth=6.96"Subcatchment 64S: Englewood (from SRF) Tc=10.0 min AMC Adjusted CN=98 Runoff=1.49 cfs 4.524 af Runoff Area=6.400 ac 0.00% Impervious Runoff Depth=6.96"Subcatchment 65S: LYMLP (from SRF) Tc=15.0 min AMC Adjusted CN=98 Runoff=1.22 cfs 3.712 af Runoff Area=1.900 ac 0.00% Impervious Runoff Depth=6.96"Subcatchment 66S: N54 (from SRF) Tc=7.6 min AMC Adjusted CN=98 Runoff=0.36 cfs 1.102 af Runoff Area=0.440 ac 100.00% Impervious Runoff Depth=7.20"Subcatchment 67-1S: Fresh MDW Tc=7.0 min CN=100 Runoff=0.08 cfs 0.264 af Runoff Area=1.100 ac 0.00% Impervious Runoff Depth=6.96"Subcatchment 67-2S: Fresh MDW Subcatch Tc=7.0 min AMC Adjusted CN=98 Runoff=0.21 cfs 0.638 af MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 138HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Runoff Area=2.300 ac 0.00% Impervious Runoff Depth=6.96"Subcatchment 67-3S: Fresh MDW Subcatch Tc=83.0 min AMC Adjusted CN=98 Runoff=0.42 cfs 1.334 af Runoff Area=17.000 ac 0.00% Impervious Runoff Depth=6.96"Subcatchment 68S: M10 Tc=10.0 min AMC Adjusted CN=98 Runoff=3.25 cfs 9.861 af Inflow=7.14 cfs 21.755 afReach 1R: Lake Susan Drainage Outflow=7.14 cfs 21.755 af Avg. Flow Depth=0.51' Max Vel=1.81 fps Inflow=8.91 cfs 27.207 afReach 61R: NERDITCH n=0.035 L=545.0' S=0.0055 '/' Capacity=737.08 cfs Outflow=8.90 cfs 27.207 af Avg. Flow Depth=0.29' Max Vel=2.81 fps Inflow=0.80 cfs 2.436 afReach 62R: L42 24.0" Round Pipe n=0.012 L=200.0' S=0.0050 '/' Capacity=17.33 cfs Outflow=0.80 cfs 2.436 af Peak Elev=909.54' Storage=1,214 cf Inflow=2.99 cfs 9.155 afPond 2P: Wetland 2 Outflow=2.98 cfs 9.155 af Peak Elev=906.80' Storage=34,238 cf Inflow=5.42 cfs 16.614 afPond 3P: Basin 3 (Wetland 1) Outflow=5.35 cfs 16.157 af Peak Elev=896.60' Storage=86 cf Inflow=6.50 cfs 19.732 afPond 4P: Powers Culvert 54.0" Round Culvert n=0.013 L=191.0' S=0.0062 '/' Outflow=6.50 cfs 19.732 af Peak Elev=893.33' Storage=191,034 cf Inflow=12.74 cfs 38.925 afPond 61P: Englewood Pond Outflow=9.16 cfs 38.780 af Peak Elev=896.97' Storage=19,184 cf Inflow=2.28 cfs 7.051 afPond 65P: Fresh MDW Outflow=2.17 cfs 6.894 af Peak Elev=893.29' Storage=871,546 cf Inflow=14.14 cfs 55.535 afPond 68P: East MNDOT M10 Wetland Outflow=3.60 cfs 51.480 af Total Runoff Area = 97.033 ac Runoff Volume = 56.294 af Average Runoff Depth = 6.96" 98.79% Pervious = 95.862 ac 1.21% Impervious = 1.170 ac MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 139HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 0S: To Powers - North Runoff = 0.12 cfs @ 121.27 hrs, Volume= 0.370 af, Depth= 6.96" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4 Area (sf) CN Adj Description 27,760 58 98 Meadow, non-grazed, HSG B 27,760 Weighted Average 27,760 58 98 100.00% Pervious Area, AMC Adjusted Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 5.6 75 0.0530 0.22 Sheet Flow, Grass: Short n= 0.150 P2= 2.87" 0.9 137 0.1240 2.46 Shallow Concentrated Flow, Short Grass Pasture Kv= 7.0 fps 6.5 212 Total Subcatchment 0S: To Powers - North Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.13 0.12 0.11 0.1 0.09 0.08 0.07 0.06 0.05 0.04 0.03 0.02 0.01 0 MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20" AMC=4 Runoff Area=27,760 sf Runoff Volume=0.370 af Runoff Depth=6.96" Flow Length=212' Tc=6.5 min AMC Adjusted CN=98 0.12 cfs MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 140HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 00S: To Powers - South Runoff = 0.13 cfs @ 121.27 hrs, Volume= 0.388 af, Depth= 6.96" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4 Area (sf) CN Adj Description 14,560 55 98 Woods, Good, HSG B 14,560 79 98 Pasture/grassland/range, Poor, HSG B 29,120 Weighted Average 29,120 67 98 100.00% Pervious Area, AMC Adjusted Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 4.3 38 0.0200 0.15 Sheet Flow, Range n= 0.130 P2= 2.87" 2.9 160 0.0170 0.91 Shallow Concentrated Flow, Short Grass Pasture Kv= 7.0 fps 7.2 198 Total Subcatchment 00S: To Powers - South Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.14 0.13 0.12 0.11 0.1 0.09 0.08 0.07 0.06 0.05 0.04 0.03 0.02 0.01 0 MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20" AMC=4 Runoff Area=29,120 sf Runoff Volume=0.388 af Runoff Depth=6.96" Flow Length=198' Tc=7.2 min AMC Adjusted CN=WQ 0.13 cfs MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 141HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 1S: To Lyman - NE Runoff = 0.40 cfs @ 121.24 hrs, Volume= 1.203 af, Depth= 6.96" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4 Area (sf) CN Adj Description 90,310 58 98 Meadow, non-grazed, HSG B 90,310 Weighted Average 90,310 58 98 100.00% Pervious Area, AMC Adjusted Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 2.6 50 0.1600 0.32 Sheet Flow, Grass: Short n= 0.150 P2= 2.87" 0.4 72 0.1600 2.80 Shallow Concentrated Flow, Short Grass Pasture Kv= 7.0 fps 2.0 Direct Entry, Make up to 5 Minutes 5.0 122 Total Subcatchment 1S: To Lyman - NE Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.44 0.42 0.4 0.38 0.36 0.34 0.32 0.3 0.28 0.26 0.24 0.22 0.2 0.18 0.16 0.14 0.12 0.1 0.08 0.06 0.04 0.02 0 MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20" AMC=4 Runoff Area=90,310 sf Runoff Volume=1.203 af Runoff Depth=6.96" Flow Length=122' Slope=0.1600 '/' Tc=5.0 min AMC Adjusted CN=98 0.40 cfs MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 142HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 2S: Wetland 2 Runoff = 2.99 cfs @ 121.47 hrs, Volume= 9.155 af, Depth= 6.96" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4 Area (sf) CN Adj Description 31,810 98 98 Water Surface, HSG D * 70,790 96 98 Wetland 79,915 79 98 Pasture/grassland/range, Poor, HSG B * 86,270 61 98 Grasses, Good, HSG B 418,735 79 98 Pasture/grassland/range, Poor, HSG B 687,520 Weighted Average 655,710 78 98 95.37% Pervious Area, AMC Adjusted 31,810 98 98 4.63% Impervious Area, AMC Adjusted Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 9.2 135 0.0370 0.25 Sheet Flow, Range n= 0.130 P2= 2.87" 0.4 60 0.1310 2.53 Shallow Concentrated Flow, Short Grass Pasture Kv= 7.0 fps 0.1 46 0.6500 5.64 Shallow Concentrated Flow, Short Grass Pasture Kv= 7.0 fps 1.4 90 0.0220 1.04 Shallow Concentrated Flow, Short Grass Pasture Kv= 7.0 fps 0.9 52 0.0190 0.96 Shallow Concentrated Flow, Short Grass Pasture Kv= 7.0 fps 1.3 94 0.0320 1.25 Shallow Concentrated Flow, Short Grass Pasture Kv= 7.0 fps 2.3 210 0.0480 1.53 Shallow Concentrated Flow, Short Grass Pasture Kv= 7.0 fps 0.4 50 0.0200 2.12 Shallow Concentrated Flow, Wetland Grassed Waterway Kv= 15.0 fps 10.4 350 0.0014 0.56 Shallow Concentrated Flow, Wetland Grassed Waterway Kv= 15.0 fps 26.4 1,087 Total MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 143HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Subcatchment 2S: Wetland 2 Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)3 2 1 0 MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20" AMC=4 Runoff Area=687,520 sf Runoff Volume=9.155 af Runoff Depth=6.96" Flow Length=1,087' Tc=26.4 min AMC Adjusted CN=WQ 2.99 cfs MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 144HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 3S: Wetland 1 Runoff = 2.45 cfs @ 121.39 hrs, Volume= 7.459 af, Depth= 6.96" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4 Area (sf) CN Adj Description * 56,025 96 98 Wetland, HSG D 55,045 79 98 Pasture/grassland/range, Poor, HSG B 62,080 55 98 Woods, Good, HSG B 349,085 79 98 Pasture/grassland/range, Poor, HSG B 37,910 77 98 Woods, Good, HSG D 560,145 Weighted Average 560,145 78 98 100.00% Pervious Area, AMC Adjusted Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 9.2 100 0.0200 0.18 Sheet Flow, Range n= 0.130 P2= 2.87" 7.2 438 0.0210 1.01 Shallow Concentrated Flow, Short Grass Pasture Kv= 7.0 fps 0.4 47 0.0150 1.84 Shallow Concentrated Flow, Wetland Grassed Waterway Kv= 15.0 fps 16.8 585 Total Subcatchment 3S: Wetland 1 Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)2 1 0 MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20" AMC=4 Runoff Area=560,145 sf Runoff Volume=7.459 af Runoff Depth=6.96" Flow Length=585' Tc=16.8 min AMC Adjusted CN=WQ 2.45 cfs MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 145HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 4oS: From Powers Runoff = 0.16 cfs @ 121.26 hrs, Volume= 0.475 af, Depth= 6.96" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4 Area (sf) CN Adj Description 35,675 78 98 Meadow, non-grazed, HSG D 35,675 Weighted Average 35,675 78 98 100.00% Pervious Area, AMC Adjusted Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 3.5 75 0.1670 0.36 Sheet Flow, Grass: Short n= 0.150 P2= 2.87" 2.5 245 0.0550 1.64 Shallow Concentrated Flow, Short Grass Pasture Kv= 7.0 fps 6.0 320 Total Subcatchment 4oS: From Powers Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.17 0.16 0.15 0.14 0.13 0.12 0.11 0.1 0.09 0.08 0.07 0.06 0.05 0.04 0.03 0.02 0.01 0 MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20" AMC=4 Runoff Area=35,675 sf Runoff Volume=0.475 af Runoff Depth=6.96" Flow Length=320' Tc=6.0 min AMC Adjusted CN=98 0.16 cfs MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 146HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 4S: Wetland 8 Runoff = 1.02 cfs @ 121.37 hrs, Volume= 3.100 af, Depth= 6.96" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4 Area (sf) CN Adj Description * 2,815 96 98 Wetland, HSG D 15,470 55 98 Woods, Good, HSG B 150,205 79 98 Pasture/grassland/range, Poor, HSG B 37,925 79 98 Pasture/grassland/range, Poor, HSG B 26,410 77 98 Woods, Good, HSG D 232,825 Weighted Average 232,825 77 98 100.00% Pervious Area, AMC Adjusted Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 10.4 50 0.0350 0.08 Sheet Flow, Woods: Light underbrush n= 0.400 P2= 2.87" 4.2 50 0.0350 0.20 Sheet Flow, Range n= 0.130 P2= 2.87" 3.5 325 0.0490 1.55 Shallow Concentrated Flow, Short Grass Pasture Kv= 7.0 fps 0.2 47 0.0600 3.67 Shallow Concentrated Flow, Wetland Grassed Waterway Kv= 15.0 fps 18.3 472 Total MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 147HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Subcatchment 4S: Wetland 8 Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)1 0 MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20" AMC=4 Runoff Area=232,825 sf Runoff Volume=3.100 af Runoff Depth=6.96" Flow Length=472' Tc=18.3 min AMC Adjusted CN=WQ 1.02 cfs MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 148HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 16oS: East Offsite Runoff = 0.02 cfs @ 121.30 hrs, Volume= 0.062 af, Depth= 6.96" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4 Area (sf) CN Adj Description 4,669 58 98 Meadow, non-grazed, HSG B 4,669 Weighted Average 4,669 58 98 100.00% Pervious Area, AMC Adjusted Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 10.0 Direct Entry, Subcatchment 16oS: East Offsite Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.022 0.021 0.02 0.019 0.018 0.017 0.016 0.015 0.014 0.013 0.012 0.011 0.01 0.009 0.008 0.007 0.006 0.005 0.004 0.003 0.002 0.001 0 MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20" AMC=4 Runoff Area=4,669 sf Runoff Volume=0.062 af Runoff Depth=6.96" Tc=10.0 min AMC Adjusted CN=98 0.02 cfs MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 149HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 61S: Powers (from SRF) Runoff = 1.80 cfs @ 121.29 hrs, Volume= 5.453 af, Depth= 6.96" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4 Area (ac) CN Adj Description * 9.400 87 98 Weighted 9.400 Weighted Average 9.400 87 98 100.00% Pervious Area, AMC Adjusted Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 9.0 Direct Entry, Subcatchment 61S: Powers (from SRF) Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)2 1 0 MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20" AMC=4 Runoff Area=9.400 ac Runoff Volume=5.453 af Runoff Depth=6.96" Tc=9.0 min AMC Adjusted CN=98 1.80 cfs MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 150HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 62S: NE Ramp (from SRF) Runoff = 0.80 cfs @ 121.27 hrs, Volume= 2.436 af, Depth= 6.96" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4 Area (ac) CN Adj Description * 4.200 81 98 Weighted 4.200 Weighted Average 4.200 81 98 100.00% Pervious Area, AMC Adjusted Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 8.0 Direct Entry, Subcatchment 62S: NE Ramp (from SRF) Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.85 0.8 0.75 0.7 0.65 0.6 0.55 0.5 0.45 0.4 0.35 0.3 0.25 0.2 0.15 0.1 0.05 0 MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20" AMC=4 Runoff Area=4.200 ac Runoff Volume=2.436 af Runoff Depth=6.96" Tc=8.0 min AMC Adjusted CN=98 0.80 cfs MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 151HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 63S: TH 212 (from SRF) Runoff = 1.56 cfs @ 121.32 hrs, Volume= 4.757 af, Depth= 6.96" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4 Area (ac) CN Adj Description * 8.200 87 98 Weighted 8.200 Weighted Average 8.200 87 98 100.00% Pervious Area, AMC Adjusted Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 12.0 Direct Entry, Subcatchment 63S: TH 212 (from SRF) Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)1 0 MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20" AMC=4 Runoff Area=8.200 ac Runoff Volume=4.757 af Runoff Depth=6.96" Tc=12.0 min AMC Adjusted CN=98 1.56 cfs MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 152HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 64S: Englewood (from SRF) Runoff = 1.49 cfs @ 121.30 hrs, Volume= 4.524 af, Depth= 6.96" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4 Area (ac) CN Adj Description * 7.800 77 98 Weighted 7.800 Weighted Average 7.800 77 98 100.00% Pervious Area, AMC Adjusted Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 10.0 Direct Entry, Subcatchment 64S: Englewood (from SRF) Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)1 0 MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20" AMC=4 Runoff Area=7.800 ac Runoff Volume=4.524 af Runoff Depth=6.96" Tc=10.0 min AMC Adjusted CN=98 1.49 cfs MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 153HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 65S: LYMLP (from SRF) Runoff = 1.22 cfs @ 121.35 hrs, Volume= 3.712 af, Depth= 6.96" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4 Area (ac) CN Adj Description * 6.400 83 98 Weighted 6.400 Weighted Average 6.400 83 98 100.00% Pervious Area, AMC Adjusted Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 15.0 Direct Entry, Subcatchment 65S: LYMLP (from SRF) Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)1 0 MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20" AMC=4 Runoff Area=6.400 ac Runoff Volume=3.712 af Runoff Depth=6.96" Tc=15.0 min AMC Adjusted CN=98 1.22 cfs MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 154HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 66S: N54 (from SRF) Runoff = 0.36 cfs @ 121.27 hrs, Volume= 1.102 af, Depth= 6.96" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4 Area (ac) CN Adj Description * 1.900 94 98 Weighted 1.900 Weighted Average 1.900 94 98 100.00% Pervious Area, AMC Adjusted Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 7.6 Direct Entry, Subcatchment 66S: N54 (from SRF) Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.4 0.38 0.36 0.34 0.32 0.3 0.28 0.26 0.24 0.22 0.2 0.18 0.16 0.14 0.12 0.1 0.08 0.06 0.04 0.02 0 MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20" AMC=4 Runoff Area=1.900 ac Runoff Volume=1.102 af Runoff Depth=6.96" Tc=7.6 min AMC Adjusted CN=98 0.36 cfs MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 155HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 67-1S: Fresh MDW Subcatch 1 (from SRF) Runoff = 0.08 cfs @ 121.26 hrs, Volume= 0.264 af, Depth= 7.20" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4 Area (ac) CN Description * 0.440 100 Weighted 0.440 100 100.00% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 7.0 Direct Entry, Subcatchment 67-1S: Fresh MDW Subcatch 1 (from SRF) Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.09 0.085 0.08 0.075 0.07 0.065 0.06 0.055 0.05 0.045 0.04 0.035 0.03 0.025 0.02 0.015 0.01 0.005 0 MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20" AMC=4 Runoff Area=0.440 ac Runoff Volume=0.264 af Runoff Depth=7.20" Tc=7.0 min CN=100 0.08 cfs MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 156HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 67-2S: Fresh MDW Subcatch 2 (from SRF) Runoff = 0.21 cfs @ 121.26 hrs, Volume= 0.638 af, Depth= 6.96" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4 Area (ac) CN Adj Description * 1.100 71 98 Weighted 1.100 Weighted Average 1.100 71 98 100.00% Pervious Area, AMC Adjusted Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 7.0 Direct Entry, Subcatchment 67-2S: Fresh MDW Subcatch 2 (from SRF) Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.23 0.22 0.21 0.2 0.19 0.18 0.17 0.16 0.15 0.14 0.13 0.12 0.11 0.1 0.09 0.08 0.07 0.06 0.05 0.04 0.03 0.02 0.01 0 MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20" AMC=4 Runoff Area=1.100 ac Runoff Volume=0.638 af Runoff Depth=6.96" Tc=7.0 min AMC Adjusted CN=98 0.21 cfs MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 157HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 67-3S: Fresh MDW Subcatch 3 (from SRF) Runoff = 0.42 cfs @ 122.19 hrs, Volume= 1.334 af, Depth= 6.96" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4 Area (ac) CN Adj Description * 2.300 10 98 Weighted 2.300 Weighted Average 2.300 10 98 100.00% Pervious Area, AMC Adjusted Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 83.0 Direct Entry, Subcatchment 67-3S: Fresh MDW Subcatch 3 (from SRF) Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.46 0.44 0.42 0.4 0.38 0.36 0.34 0.32 0.3 0.28 0.26 0.24 0.22 0.2 0.18 0.16 0.14 0.12 0.1 0.08 0.06 0.04 0.02 0 MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20" AMC=4 Runoff Area=2.300 ac Runoff Volume=1.334 af Runoff Depth=6.96" Tc=83.0 min AMC Adjusted CN=98 0.42 cfs MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 158HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 68S: M10 Runoff = 3.25 cfs @ 121.30 hrs, Volume= 9.861 af, Depth= 6.96" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4 Area (ac) CN Adj Description * 17.000 74 98 Weighted 17.000 Weighted Average 17.000 74 98 100.00% Pervious Area, AMC Adjusted Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 10.0 Direct Entry, Subcatchment 68S: M10 Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)3 2 1 0 MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20" AMC=4 Runoff Area=17.000 ac Runoff Volume=9.861 af Runoff Depth=6.96" Tc=10.0 min AMC Adjusted CN=98 3.25 cfs MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 159HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Reach 1R: Lake Susan Drainage [40] Hint: Not Described (Outflow=Inflow) Inflow Area = 38.293 ac, 1.91% Impervious, Inflow Depth = 6.82" for 10 day snowmelt event Inflow = 7.14 cfs @ 121.50 hrs, Volume= 21.755 af Outflow = 7.14 cfs @ 121.50 hrs, Volume= 21.755 af, Atten= 0%, Lag= 0.0 min Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Reach 1R: Lake Susan Drainage Inflow Outflow Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)7 6 5 4 3 2 1 0 Inflow Area=38.293 ac 7.14 cfs 7.14 cfs MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 160HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Reach 61R: NERDITCH Inflow Area = 47.693 ac, 1.53% Impervious, Inflow Depth = 6.85" for 10 day snowmelt event Inflow = 8.91 cfs @ 121.37 hrs, Volume= 27.207 af Outflow = 8.90 cfs @ 121.45 hrs, Volume= 27.207 af, Atten= 0%, Lag= 4.5 min Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Max. Velocity= 1.81 fps, Min. Travel Time= 5.0 min Avg. Velocity = 0.73 fps, Avg. Travel Time= 12.4 min Peak Storage= 2,676 cf @ 121.45 hrs Average Depth at Peak Storage= 0.51' Bank-Full Depth= 5.00' Flow Area= 115.0 sf, Capacity= 737.08 cfs 8.00' x 5.00' deep channel, n= 0.035 Side Slope Z-value= 3.0 '/' Top Width= 38.00' Length= 545.0' Slope= 0.0055 '/' Inlet Invert= 895.00', Outlet Invert= 892.00' ‡ Reach 61R: NERDITCH Inflow Outflow Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)9 8 7 6 5 4 3 2 1 0 Inflow Area=47.693 ac Avg. Flow Depth=0.51' Max Vel=1.81 fps n=0.035 L=545.0' S=0.0055 '/' Capacity=737.08 cfs 8.91 cfs 8.90 cfs MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 161HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Stage-Area-Storage for Reach 61R: NERDITCH Elevation (feet) End-Area (sq-ft) Storage (cubic-feet) 895.00 0.0 0 895.05 0.4 222 895.10 0.8 452 895.15 1.3 691 895.20 1.7 937 895.25 2.2 1,192 895.30 2.7 1,455 895.35 3.2 1,726 895.40 3.7 2,006 895.45 4.2 2,293 895.50 4.8 2,589 895.55 5.3 2,893 895.60 5.9 3,205 895.65 6.5 3,525 895.70 7.1 3,853 895.75 7.7 4,190 895.80 8.3 4,534 895.85 9.0 4,887 895.90 9.6 5,248 895.95 10.3 5,618 896.00 11.0 5,995 896.05 11.7 6,381 896.10 12.4 6,774 896.15 13.2 7,176 896.20 13.9 7,586 896.25 14.7 8,005 896.30 15.5 8,431 896.35 16.3 8,866 896.40 17.1 9,309 896.45 17.9 9,760 896.50 18.8 10,219 896.55 19.6 10,686 896.60 20.5 11,162 896.65 21.4 11,645 896.70 22.3 12,137 896.75 23.2 12,637 896.80 24.1 13,145 896.85 25.1 13,662 896.90 26.0 14,186 896.95 27.0 14,719 897.00 28.0 15,260 897.05 29.0 15,809 897.10 30.0 16,366 897.15 31.1 16,932 897.20 32.1 17,505 897.25 33.2 18,087 897.30 34.3 18,677 897.35 35.4 19,275 897.40 36.5 19,882 897.45 37.6 20,496 897.50 38.8 21,119 897.55 39.9 21,750 Elevation (feet) End-Area (sq-ft) Storage (cubic-feet) 897.60 41.1 22,389 897.65 42.3 23,036 897.70 43.5 23,691 897.75 44.7 24,355 897.80 45.9 25,026 897.85 47.2 25,706 897.90 48.4 26,394 897.95 49.7 27,091 898.00 51.0 27,795 898.05 52.3 28,508 898.10 53.6 29,228 898.15 55.0 29,957 898.20 56.3 30,694 898.25 57.7 31,440 898.30 59.1 32,193 898.35 60.5 32,955 898.40 61.9 33,725 898.45 63.3 34,503 898.50 64.8 35,289 898.55 66.2 36,083 898.60 67.7 36,886 898.65 69.2 37,696 898.70 70.7 38,515 898.75 72.2 39,342 898.80 73.7 40,177 898.85 75.3 41,021 898.90 76.8 41,872 898.95 78.4 42,732 899.00 80.0 43,600 899.05 81.6 44,476 899.10 83.2 45,360 899.15 84.9 46,253 899.20 86.5 47,153 899.25 88.2 48,062 899.30 89.9 48,979 899.35 91.6 49,904 899.40 93.3 50,838 899.45 95.0 51,779 899.50 96.8 52,729 899.55 98.5 53,687 899.60 100.3 54,653 899.65 102.1 55,627 899.70 103.9 56,609 899.75 105.7 57,600 899.80 107.5 58,598 899.85 109.4 59,605 899.90 111.2 60,620 899.95 113.1 61,644 900.00 115.0 62,675 MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 162HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Reach 62R: L42 [52] Hint: Inlet/Outlet conditions not evaluated Inflow Area = 4.200 ac, 0.00% Impervious, Inflow Depth = 6.96" for 10 day snowmelt event Inflow = 0.80 cfs @ 121.27 hrs, Volume= 2.436 af Outflow = 0.80 cfs @ 121.29 hrs, Volume= 2.436 af, Atten= 0%, Lag= 1.1 min Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Max. Velocity= 2.81 fps, Min. Travel Time= 1.2 min Avg. Velocity = 1.53 fps, Avg. Travel Time= 2.2 min Peak Storage= 57 cf @ 121.29 hrs Average Depth at Peak Storage= 0.29' Bank-Full Depth= 2.00' Flow Area= 3.1 sf, Capacity= 17.33 cfs 24.0" Round Pipe n= 0.012 Length= 200.0' Slope= 0.0050 '/' Inlet Invert= 893.00', Outlet Invert= 892.00' Reach 62R: L42 Inflow Outflow Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.85 0.8 0.75 0.7 0.65 0.6 0.55 0.5 0.45 0.4 0.35 0.3 0.25 0.2 0.15 0.1 0.05 0 Inflow Area=4.200 ac Avg. Flow Depth=0.29' Max Vel=2.81 fps 24.0" Round Pipe n=0.012 L=200.0' S=0.0050 '/' Capacity=17.33 cfs 0.80 cfs 0.80 cfs MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 163HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Stage-Area-Storage for Reach 62R: L42 Elevation (feet) End-Area (sq-ft) Storage (cubic-feet) 893.00 0.0 0 893.02 0.0 1 893.04 0.0 3 893.06 0.0 5 893.08 0.0 8 893.10 0.1 12 893.12 0.1 15 893.14 0.1 19 893.16 0.1 24 893.18 0.1 28 893.20 0.2 33 893.22 0.2 38 893.24 0.2 43 893.26 0.2 48 893.28 0.3 53 893.30 0.3 59 893.32 0.3 65 893.34 0.4 71 893.36 0.4 77 893.38 0.4 83 893.40 0.4 89 893.42 0.5 96 893.44 0.5 102 893.46 0.5 109 893.48 0.6 116 893.50 0.6 123 893.52 0.6 130 893.54 0.7 137 893.56 0.7 144 893.58 0.8 151 893.60 0.8 159 893.62 0.8 166 893.64 0.9 173 893.66 0.9 181 893.68 0.9 188 893.70 1.0 196 893.72 1.0 204 893.74 1.1 211 893.76 1.1 219 893.78 1.1 227 893.80 1.2 235 893.82 1.2 243 893.84 1.3 250 893.86 1.3 258 893.88 1.3 266 893.90 1.4 274 893.92 1.4 282 893.94 1.5 290 893.96 1.5 298 893.98 1.5 306 894.00 1.6 314 894.02 1.6 322 Elevation (feet) End-Area (sq-ft) Storage (cubic-feet) 894.04 1.7 330 894.06 1.7 338 894.08 1.7 346 894.10 1.8 354 894.12 1.8 362 894.14 1.8 370 894.16 1.9 378 894.18 1.9 386 894.20 2.0 394 894.22 2.0 401 894.24 2.0 409 894.26 2.1 417 894.28 2.1 425 894.30 2.2 432 894.32 2.2 440 894.34 2.2 447 894.36 2.3 455 894.38 2.3 462 894.40 2.3 470 894.42 2.4 477 894.44 2.4 484 894.46 2.5 491 894.48 2.5 499 894.50 2.5 505 894.52 2.6 512 894.54 2.6 519 894.56 2.6 526 894.58 2.7 532 894.60 2.7 539 894.62 2.7 545 894.64 2.8 551 894.66 2.8 557 894.68 2.8 563 894.70 2.8 569 894.72 2.9 575 894.74 2.9 580 894.76 2.9 586 894.78 3.0 591 894.80 3.0 596 894.82 3.0 600 894.84 3.0 605 894.86 3.0 609 894.88 3.1 613 894.90 3.1 617 894.92 3.1 620 894.94 3.1 623 894.96 3.1 625 894.98 3.1 627 895.00 3.1 628 MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 164HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Pond 2P: Wetland 2 Inflow Area = 15.783 ac, 4.63% Impervious, Inflow Depth = 6.96" for 10 day snowmelt event Inflow = 2.99 cfs @ 121.47 hrs, Volume= 9.155 af Outflow = 2.98 cfs @ 121.54 hrs, Volume= 9.155 af, Atten= 0%, Lag= 4.4 min Primary = 2.98 cfs @ 121.54 hrs, Volume= 9.155 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 909.54' @ 121.54 hrs Surf.Area= 31,399 sf Storage= 1,214 cf Plug-Flow detention time= 11.3 min calculated for 9.155 af (100% of inflow) Center-of-Mass det. time= 11.3 min ( 7,412.1 - 7,400.8 ) Volume Invert Avail.Storage Storage Description #1 909.50' 137,271 cf Custom Stage Data (Prismatic) Listed below (Recalc) Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 909.50 25,770 0 0 910.00 92,020 29,448 29,448 911.00 123,627 107,824 137,271 Device Routing Invert Outlet Devices #1 Primary 909.50'Asymmetrical Weir, C= 3.27 Offset (feet) 0.00 45.00 95.00 196.00 241.00 301.00 Height (feet) 1.50 0.50 0.00 0.00 0.50 1.50 Primary OutFlow Max=2.98 cfs @ 121.54 hrs HW=909.54' TW=906.80' (Dynamic Tailwater) 1=Asymmetrical Weir (Weir Controls 2.98 cfs @ 0.64 fps) MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 165HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Pond 2P: Wetland 2 Inflow Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)3 2 1 0 Inflow Area=15.783 ac Peak Elev=909.54' Storage=1,214 cf 2.99 cfs 2.98 cfs MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 166HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Stage-Area-Storage for Pond 2P: Wetland 2 Elevation (feet) Surface (sq-ft) Storage (cubic-feet) 909.50 25,770 0 909.52 28,420 542 909.54 31,070 1,137 909.56 33,720 1,785 909.58 36,370 2,486 909.60 39,020 3,240 909.62 41,670 4,046 909.64 44,320 4,906 909.66 46,970 5,819 909.68 49,620 6,785 909.70 52,270 7,804 909.72 54,920 8,876 909.74 57,570 10,001 909.76 60,220 11,179 909.78 62,870 12,410 909.80 65,520 13,693 909.82 68,170 15,030 909.84 70,820 16,420 909.86 73,470 17,863 909.88 76,120 19,359 909.90 78,770 20,908 909.92 81,420 22,510 909.94 84,070 24,165 909.96 86,720 25,873 909.98 89,370 27,634 910.00 92,020 29,448 910.02 92,652 31,294 910.04 93,284 33,154 910.06 93,916 35,026 910.08 94,549 36,910 910.10 95,181 38,808 910.12 95,813 40,717 910.14 96,445 42,640 910.16 97,077 44,575 910.18 97,709 46,523 910.20 98,341 48,484 910.22 98,974 50,457 910.24 99,606 52,443 910.26 100,238 54,441 910.28 100,870 56,452 910.30 101,502 58,476 910.32 102,134 60,512 910.34 102,766 62,561 910.36 103,399 64,623 910.38 104,031 66,697 910.40 104,663 68,784 910.42 105,295 70,884 910.44 105,927 72,996 910.46 106,559 75,121 910.48 107,191 77,258 910.50 107,824 79,408 910.52 108,456 81,571 Elevation (feet) Surface (sq-ft) Storage (cubic-feet) 910.54 109,088 83,747 910.56 109,720 85,935 910.58 110,352 88,135 910.60 110,984 90,349 910.62 111,616 92,575 910.64 112,248 94,813 910.66 112,881 97,065 910.68 113,513 99,329 910.70 114,145 101,605 910.72 114,777 103,894 910.74 115,409 106,196 910.76 116,041 108,511 910.78 116,673 110,838 910.80 117,306 113,178 910.82 117,938 115,530 910.84 118,570 117,895 910.86 119,202 120,273 910.88 119,834 122,663 910.90 120,466 125,066 910.92 121,098 127,482 910.94 121,731 129,910 910.96 122,363 132,351 910.98 122,995 134,805 911.00 123,627 137,271 MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 167HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Pond 3P: Basin 3 (Wetland 1) Inflow Area = 28.642 ac, 2.55% Impervious, Inflow Depth = 6.96" for 10 day snowmelt event Inflow = 5.42 cfs @ 121.43 hrs, Volume= 16.614 af Outflow = 5.35 cfs @ 121.66 hrs, Volume= 16.157 af, Atten= 1%, Lag= 14.2 min Primary = 5.35 cfs @ 121.66 hrs, Volume= 16.157 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 906.80' @ 121.66 hrs Surf.Area= 54,823 sf Storage= 34,238 cf Plug-Flow detention time= 482.1 min calculated for 16.157 af (97% of inflow) Center-of-Mass det. time= 295.1 min ( 7,698.2 - 7,403.0 ) Volume Invert Avail.Storage Storage Description #1 905.50' 251,588 cf Custom Stage Data (Prismatic) Listed below (Recalc) Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 905.50 0 0 0 906.00 18,685 4,671 4,671 907.00 63,607 41,146 45,817 908.00 100,875 82,241 128,058 909.00 146,184 123,530 251,588 Device Routing Invert Outlet Devices #1 Primary 906.50'Asymmetrical Weir, C= 3.27 Offset (feet) 0.00 28.00 115.00 135.00 155.00 184.00 204.00 Height (feet) 2.50 1.50 0.50 0.00 0.50 1.50 2.50 Primary OutFlow Max=5.35 cfs @ 121.66 hrs HW=906.80' TW=896.60' (Dynamic Tailwater) 1=Asymmetrical Weir (Weir Controls 5.35 cfs @ 0.72 fps) MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 168HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Pond 3P: Basin 3 (Wetland 1) Inflow Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)6 5 4 3 2 1 0 Inflow Area=28.642 ac Peak Elev=906.80' Storage=34,238 cf 5.42 cfs 5.35 cfs MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 169HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Stage-Area-Storage for Pond 3P: Basin 3 (Wetland 1) Elevation (feet) Surface (sq-ft) Storage (cubic-feet) 905.50 0 0 905.55 1,868 47 905.60 3,737 187 905.65 5,605 420 905.70 7,474 747 905.75 9,343 1,168 905.80 11,211 1,682 905.85 13,080 2,289 905.90 14,948 2,990 905.95 16,817 3,784 906.00 18,685 4,671 906.05 20,931 5,662 906.10 23,177 6,764 906.15 25,423 7,979 906.20 27,669 9,307 906.25 29,916 10,746 906.30 32,162 12,298 906.35 34,408 13,962 906.40 36,654 15,739 906.45 38,900 17,628 906.50 41,146 19,629 906.55 43,392 21,742 906.60 45,638 23,968 906.65 47,884 26,306 906.70 50,130 28,757 906.75 52,377 31,319 906.80 54,623 33,994 906.85 56,869 36,782 906.90 59,115 39,681 906.95 61,361 42,693 907.00 63,607 45,817 907.05 65,470 49,044 907.10 67,334 52,364 907.15 69,197 55,778 907.20 71,061 59,284 907.25 72,924 62,884 907.30 74,787 66,576 907.35 76,651 70,362 907.40 78,514 74,241 907.45 80,378 78,214 907.50 82,241 82,279 907.55 84,104 86,438 907.60 85,968 90,690 907.65 87,831 95,035 907.70 89,695 99,473 907.75 91,558 104,004 907.80 93,421 108,629 907.85 95,285 113,346 907.90 97,148 118,157 907.95 99,012 123,061 908.00 100,875 128,058 908.05 103,140 133,159 Elevation (feet) Surface (sq-ft) Storage (cubic-feet) 908.10 105,406 138,372 908.15 107,671 143,699 908.20 109,937 149,139 908.25 112,202 154,693 908.30 114,468 160,360 908.35 116,733 166,140 908.40 118,999 172,033 908.45 121,264 178,040 908.50 123,530 184,159 908.55 125,795 190,392 908.60 128,060 196,739 908.65 130,326 203,199 908.70 132,591 209,771 908.75 134,857 216,458 908.80 137,122 223,257 908.85 139,388 230,170 908.90 141,653 237,196 908.95 143,919 244,335 909.00 146,184 251,588 MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 170HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Pond 4P: Powers Culvert Inflow Area = 34.806 ac, 2.10% Impervious, Inflow Depth = 6.80" for 10 day snowmelt event Inflow = 6.50 cfs @ 121.57 hrs, Volume= 19.732 af Outflow = 6.50 cfs @ 121.58 hrs, Volume= 19.732 af, Atten= 0%, Lag= 0.3 min Primary = 6.50 cfs @ 121.58 hrs, Volume= 19.732 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 896.60' @ 121.58 hrs Surf.Area= 270 sf Storage= 86 cf Plug-Flow detention time= 0.1 min calculated for 19.732 af (100% of inflow) Center-of-Mass det. time= 0.1 min ( 7,642.8 - 7,642.7 ) Volume Invert Avail.Storage Storage Description #1 895.70' 165,537 cf Custom Stage Data (Prismatic) Listed below (Recalc) Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 895.70 1 0 0 896.00 12 2 2 898.00 877 889 891 899.00 2,760 1,819 2,709 900.00 8,250 5,505 8,214 901.00 16,910 12,580 20,794 902.00 26,632 21,771 42,565 903.00 36,506 31,569 74,134 904.00 44,700 40,603 114,737 905.00 56,900 50,800 165,537 Device Routing Invert Outlet Devices #1 Primary 895.71'54.0" Round Culvert L= 191.0' RCP, end-section conforming to fill, Ke= 0.500 Inlet / Outlet Invert= 895.71' / 894.53' S= 0.0062 '/' Cc= 0.900 n= 0.013 Concrete pipe, straight & clean, Flow Area= 15.90 sf Primary OutFlow Max=6.50 cfs @ 121.58 hrs HW=896.60' TW=0.00' (Dynamic Tailwater) 1=Culvert (Barrel Controls 6.50 cfs @ 4.44 fps) MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 171HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Pond 4P: Powers Culvert Inflow Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)7 6 5 4 3 2 1 0 Inflow Area=34.806 ac Peak Elev=896.60' Storage=86 cf 54.0" Round Culvert n=0.013 L=191.0' S=0.0062 '/' 6.50 cfs 6.50 cfs MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 172HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Stage-Area-Storage for Pond 4P: Powers Culvert Elevation (feet) Surface (sq-ft) Storage (cubic-feet) 895.70 1 0 895.80 5 0 895.90 8 1 896.00 12 2 896.10 55 5 896.20 99 13 896.30 142 25 896.40 185 41 896.50 228 62 896.60 272 87 896.70 315 116 896.80 358 150 896.90 401 188 897.00 445 230 897.10 488 277 897.20 531 328 897.30 574 383 897.40 618 443 897.50 661 507 897.60 704 575 897.70 747 647 897.80 791 724 897.90 834 805 898.00 877 891 898.10 1,065 988 898.20 1,254 1,104 898.30 1,442 1,239 898.40 1,630 1,392 898.50 1,819 1,565 898.60 2,007 1,756 898.70 2,195 1,966 898.80 2,383 2,195 898.90 2,572 2,443 899.00 2,760 2,709 899.10 3,309 3,013 899.20 3,858 3,371 899.30 4,407 3,785 899.40 4,956 4,253 899.50 5,505 4,776 899.60 6,054 5,354 899.70 6,603 5,987 899.80 7,152 6,674 899.90 7,701 7,417 900.00 8,250 8,214 900.10 9,116 9,083 900.20 9,982 10,038 900.30 10,848 11,079 900.40 11,714 12,207 900.50 12,580 13,422 900.60 13,446 14,723 900.70 14,312 16,111 900.80 15,178 17,586 Elevation (feet) Surface (sq-ft) Storage (cubic-feet) 900.90 16,044 19,147 901.00 16,910 20,794 901.10 17,882 22,534 901.20 18,854 24,371 901.30 19,827 26,305 901.40 20,799 28,336 901.50 21,771 30,465 901.60 22,743 32,690 901.70 23,715 35,013 901.80 24,688 37,433 901.90 25,660 39,951 902.00 26,632 42,565 902.10 27,619 45,278 902.20 28,607 48,089 902.30 29,594 50,999 902.40 30,582 54,008 902.50 31,569 57,116 902.60 32,556 60,322 902.70 33,544 63,627 902.80 34,531 67,031 902.90 35,519 70,533 903.00 36,506 74,134 903.10 37,325 77,826 903.20 38,145 81,600 903.30 38,964 85,455 903.40 39,784 89,392 903.50 40,603 93,412 903.60 41,422 97,513 903.70 42,242 101,696 903.80 43,061 105,961 903.90 43,881 110,308 904.00 44,700 114,737 904.10 45,920 119,268 904.20 47,140 123,921 904.30 48,360 128,696 904.40 49,580 133,593 904.50 50,800 138,612 904.60 52,020 143,753 904.70 53,240 149,016 904.80 54,460 154,401 904.90 55,680 159,908 905.00 56,900 165,537 MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 173HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Pond 61P: Englewood Pond [87] Warning: Oscillations may require smaller dt or Finer Routing (severity=10) [62] Hint: Exceeded Reach 61R OUTLET depth by 1.13' @ 142.88 hrs [63] Warning: Exceeded Reach 62R INLET depth by 0.20' @ 140.44 hrs Inflow Area = 67.893 ac, 1.08% Impervious, Inflow Depth = 6.88" for 10 day snowmelt event Inflow = 12.74 cfs @ 121.35 hrs, Volume= 38.925 af Outflow = 9.16 cfs @ 122.49 hrs, Volume= 38.780 af, Atten= 28%, Lag= 68.5 min Primary = 9.16 cfs @ 122.49 hrs, Volume= 38.780 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 893.33' @ 138.30 hrs Surf.Area= 150,543 sf Storage= 191,034 cf Plug-Flow detention time= 935.6 min calculated for 38.779 af (100% of inflow) Center-of-Mass det. time= 908.3 min ( 8,430.5 - 7,522.2 ) Volume Invert Avail.Storage Storage Description #1 892.00' 1,031,055 cf Custom Stage Data (Prismatic) Listed below (Recalc) Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 892.00 136,580 0 0 895.00 168,060 456,960 456,960 898.00 214,670 574,095 1,031,055 Device Routing Invert Outlet Devices #1 Primary 892.00'42.0" Round Culvert L= 29.0' RCP, square edge headwall, Ke= 0.500 Inlet / Outlet Invert= 892.00' / 891.71' S= 0.0100 '/' Cc= 0.900 n= 0.013 Concrete pipe, straight & clean, Flow Area= 9.62 sf #2 Device 1 887.63'42.0" Round Culvert L= 13.0' RCP, end-section conforming to fill, Ke= 0.500 Inlet / Outlet Invert= 887.50' / 887.63' S= -0.0100 '/' Cc= 0.900 n= 0.013 Concrete pipe, straight & clean, Flow Area= 9.62 sf Primary OutFlow Max=9.15 cfs @ 122.49 hrs HW=893.29' TW=892.80' (Dynamic Tailwater) 1=Culvert (Outlet Controls 9.15 cfs @ 4.21 fps) 2=Culvert (Passes 9.15 cfs of 32.69 cfs potential flow) MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 174HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Pond 61P: Englewood Pond Inflow Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 Inflow Area=67.893 ac Peak Elev=893.33' Storage=191,034 cf 12.74 cfs 9.16 cfs MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 175HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Stage-Area-Storage for Pond 61P: Englewood Pond Elevation (feet) Surface (sq-ft) Storage (cubic-feet) 892.00 136,580 0 892.10 137,629 13,710 892.20 138,679 27,526 892.30 139,728 41,446 892.40 140,777 55,471 892.50 141,827 69,602 892.60 142,876 83,837 892.70 143,925 98,177 892.80 144,975 112,622 892.90 146,024 127,172 893.00 147,073 141,827 893.10 148,123 156,586 893.20 149,172 171,451 893.30 150,221 186,421 893.40 151,271 201,495 893.50 152,320 216,675 893.60 153,369 231,959 893.70 154,419 247,349 893.80 155,468 262,843 893.90 156,517 278,442 894.00 157,567 294,147 894.10 158,616 309,956 894.20 159,665 325,870 894.30 160,715 341,889 894.40 161,764 358,013 894.50 162,813 374,242 894.60 163,863 390,575 894.70 164,912 407,014 894.80 165,961 423,558 894.90 167,011 440,206 895.00 168,060 456,960 895.10 169,614 473,844 895.20 171,167 490,883 895.30 172,721 508,077 895.40 174,275 525,427 895.50 175,828 542,932 895.60 177,382 560,593 895.70 178,936 578,408 895.80 180,489 596,380 895.90 182,043 614,506 896.00 183,597 632,788 896.10 185,150 651,226 896.20 186,704 669,818 896.30 188,258 688,566 896.40 189,811 707,470 896.50 191,365 726,529 896.60 192,919 745,743 896.70 194,472 765,112 896.80 196,026 784,637 896.90 197,580 804,318 897.00 199,133 824,153 897.10 200,687 844,144 Elevation (feet) Surface (sq-ft) Storage (cubic-feet) 897.20 202,241 864,291 897.30 203,794 884,592 897.40 205,348 905,050 897.50 206,902 925,662 897.60 208,455 946,430 897.70 210,009 967,353 897.80 211,563 988,432 897.90 213,116 1,009,666 898.00 214,670 1,031,055 MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 176HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Pond 65P: Fresh MDW Inflow Area = 12.140 ac, 3.62% Impervious, Inflow Depth = 6.97" for 10 day snowmelt event Inflow = 2.28 cfs @ 121.32 hrs, Volume= 7.051 af Outflow = 2.17 cfs @ 121.85 hrs, Volume= 6.894 af, Atten= 5%, Lag= 32.2 min Primary = 2.17 cfs @ 121.85 hrs, Volume= 6.894 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 896.97' @ 121.85 hrs Surf.Area= 20,897 sf Storage= 19,184 cf Plug-Flow detention time= 510.3 min calculated for 6.894 af (98% of inflow) Center-of-Mass det. time= 357.9 min ( 7,750.8 - 7,392.9 ) Volume Invert Avail.Storage Storage Description #1 896.00' 123,320 cf Custom Stage Data (Prismatic) Listed below (Recalc) Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 896.00 18,540 0 0 900.00 28,230 93,540 93,540 901.00 31,330 29,780 123,320 Device Routing Invert Outlet Devices #1 Primary 892.35'12.0" Round Culvert L= 35.0' RCP, square edge headwall, Ke= 0.500 Inlet / Outlet Invert= 892.00' / 892.35' S= -0.0100 '/' Cc= 0.900 n= 0.012, Flow Area= 0.79 sf #2 Device 1 896.35'33.0" Round Culvert L= 69.0' RCP, end-section conforming to fill, Ke= 0.500 Inlet / Outlet Invert= 896.35' / 896.01' S= 0.0049 '/' Cc= 0.900 n= 0.012 Concrete pipe, finished, Flow Area= 5.94 sf Primary OutFlow Max=2.17 cfs @ 121.85 hrs HW=896.97' TW=892.73' (Dynamic Tailwater) 1=Culvert (Passes 2.17 cfs of 7.68 cfs potential flow) 2=Culvert (Barrel Controls 2.17 cfs @ 3.24 fps) MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 177HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Pond 65P: Fresh MDW Inflow Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)2 1 0 Inflow Area=12.140 ac Peak Elev=896.97' Storage=19,184 cf 2.28 cfs 2.17 cfs MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 178HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Stage-Area-Storage for Pond 65P: Fresh MDW Elevation (feet) Surface (sq-ft) Storage (cubic-feet) 896.00 18,540 0 896.05 18,661 930 896.10 18,782 1,866 896.15 18,903 2,808 896.20 19,025 3,756 896.25 19,146 4,711 896.30 19,267 5,671 896.35 19,388 6,637 896.40 19,509 7,610 896.45 19,630 8,588 896.50 19,751 9,573 896.55 19,872 10,563 896.60 19,994 11,560 896.65 20,115 12,563 896.70 20,236 13,572 896.75 20,357 14,586 896.80 20,478 15,607 896.85 20,599 16,634 896.90 20,720 17,667 896.95 20,841 18,706 897.00 20,963 19,751 897.05 21,084 20,802 897.10 21,205 21,860 897.15 21,326 22,923 897.20 21,447 23,992 897.25 21,568 25,068 897.30 21,689 26,149 897.35 21,810 27,237 897.40 21,931 28,330 897.45 22,053 29,430 897.50 22,174 30,535 897.55 22,295 31,647 897.60 22,416 32,765 897.65 22,537 33,889 897.70 22,658 35,019 897.75 22,779 36,154 897.80 22,900 37,296 897.85 23,022 38,445 897.90 23,143 39,599 897.95 23,264 40,759 898.00 23,385 41,925 898.05 23,506 43,097 898.10 23,627 44,276 898.15 23,748 45,460 898.20 23,870 46,650 898.25 23,991 47,847 898.30 24,112 49,050 898.35 24,233 50,258 898.40 24,354 51,473 898.45 24,475 52,694 898.50 24,596 53,920 898.55 24,717 55,153 Elevation (feet) Surface (sq-ft) Storage (cubic-feet) 898.60 24,839 56,392 898.65 24,960 57,637 898.70 25,081 58,888 898.75 25,202 60,145 898.80 25,323 61,408 898.85 25,444 62,677 898.90 25,565 63,953 898.95 25,686 65,234 899.00 25,808 66,521 899.05 25,929 67,815 899.10 26,050 69,114 899.15 26,171 70,420 899.20 26,292 71,731 899.25 26,413 73,049 899.30 26,534 74,373 899.35 26,655 75,702 899.40 26,776 77,038 899.45 26,898 78,380 899.50 27,019 79,728 899.55 27,140 81,082 899.60 27,261 82,442 899.65 27,382 83,808 899.70 27,503 85,180 899.75 27,624 86,558 899.80 27,745 87,942 899.85 27,867 89,333 899.90 27,988 90,729 899.95 28,109 92,132 900.00 28,230 93,540 900.05 28,385 94,955 900.10 28,540 96,379 900.15 28,695 97,809 900.20 28,850 99,248 900.25 29,005 100,694 900.30 29,160 102,148 900.35 29,315 103,610 900.40 29,470 105,080 900.45 29,625 106,557 900.50 29,780 108,043 900.55 29,935 109,535 900.60 30,090 111,036 900.65 30,245 112,544 900.70 30,400 114,061 900.75 30,555 115,584 900.80 30,710 117,116 900.85 30,865 118,655 900.90 31,020 120,202 900.95 31,175 121,757 901.00 31,330 123,320 MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 179HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Pond 68P: East MNDOT M10 Wetland Inflow Area = 97.033 ac, 1.21% Impervious, Inflow Depth > 6.87" for 10 day snowmelt event Inflow = 14.14 cfs @ 121.92 hrs, Volume= 55.535 af Outflow = 3.60 cfs @ 140.30 hrs, Volume= 51.480 af, Atten= 75%, Lag= 1,102.6 min Primary = 3.60 cfs @ 140.30 hrs, Volume= 51.480 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 893.29' @ 140.30 hrs Surf.Area= 383,515 sf Storage= 871,546 cf Plug-Flow detention time= 3,503.5 min calculated for 51.478 af (93% of inflow) Center-of-Mass det. time= 2,979.7 min ( 11,140.3 - 8,160.6 ) Volume Invert Avail.Storage Storage Description #1 890.00' 1,574,445 cf Custom Stage Data (Prismatic) Listed below (Recalc) Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 890.00 68,660 0 0 891.00 198,790 133,725 133,725 892.00 340,250 269,520 403,245 895.00 440,550 1,171,200 1,574,445 Device Routing Invert Outlet Devices #1 Primary 890.30'18.0" Round Culvert L= 155.0' RCP, square edge headwall, Ke= 0.500 Inlet / Outlet Invert= 890.30' / 889.53' S= 0.0050 '/' Cc= 0.900 n= 0.013 Concrete pipe, straight & clean, Flow Area= 1.77 sf #2 Device 1 891.00'10.0" Vert. Orifice/Grate C= 0.600 #3 Device 2 890.50'18.0" Round Culvert L= 40.0' RCP, end-section conforming to fill, Ke= 0.500 Inlet / Outlet Invert= 890.30' / 890.50' S= -0.0050 '/' Cc= 0.900 n= 0.013 Concrete pipe, straight & clean, Flow Area= 1.77 sf Primary OutFlow Max=3.60 cfs @ 140.30 hrs HW=893.29' (Free Discharge) 1=Culvert (Passes 3.60 cfs of 10.25 cfs potential flow) 2=Orifice/Grate (Orifice Controls 3.60 cfs @ 6.60 fps) 3=Culvert (Passes 3.60 cfs of 11.60 cfs potential flow) MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 180HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Pond 68P: East MNDOT M10 Wetland Inflow Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 Inflow Area=97.033 ac Peak Elev=893.29' Storage=871,546 cf 14.14 cfs 3.60 cfs MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 181HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Stage-Area-Storage for Pond 68P: East MNDOT M10 Wetland Elevation (feet) Surface (sq-ft) Storage (cubic-feet) 890.00 68,660 0 890.05 75,166 3,596 890.10 81,673 7,517 890.15 88,179 11,763 890.20 94,686 16,335 890.25 101,193 21,232 890.30 107,699 26,454 890.35 114,206 32,001 890.40 120,712 37,874 890.45 127,219 44,073 890.50 133,725 50,596 890.55 140,231 57,445 890.60 146,738 64,619 890.65 153,244 72,119 890.70 159,751 79,944 890.75 166,258 88,094 890.80 172,764 96,570 890.85 179,271 105,370 890.90 185,777 114,497 890.95 192,284 123,948 891.00 198,790 133,725 891.05 205,863 143,841 891.10 212,936 154,311 891.15 220,009 165,135 891.20 227,082 176,312 891.25 234,155 187,843 891.30 241,228 199,728 891.35 248,301 211,966 891.40 255,374 224,558 891.45 262,447 237,503 891.50 269,520 250,803 891.55 276,593 264,455 891.60 283,666 278,462 891.65 290,739 292,822 891.70 297,812 307,536 891.75 304,885 322,603 891.80 311,958 338,024 891.85 319,031 353,799 891.90 326,104 369,927 891.95 333,177 386,409 892.00 340,250 403,245 892.05 341,922 420,299 892.10 343,593 437,437 892.15 345,265 454,659 892.20 346,937 471,964 892.25 348,608 489,352 892.30 350,280 506,824 892.35 351,952 524,380 892.40 353,623 542,020 892.45 355,295 559,743 892.50 356,967 577,549 892.55 358,638 595,439 Elevation (feet) Surface (sq-ft) Storage (cubic-feet) 892.60 360,310 613,413 892.65 361,982 631,470 892.70 363,653 649,611 892.75 365,325 667,836 892.80 366,997 686,144 892.85 368,668 704,535 892.90 370,340 723,010 892.95 372,012 741,569 893.00 373,683 760,212 893.05 375,355 778,938 893.10 377,027 797,747 893.15 378,698 816,640 893.20 380,370 835,617 893.25 382,042 854,677 893.30 383,713 873,821 893.35 385,385 893,049 893.40 387,057 912,360 893.45 388,728 931,754 893.50 390,400 951,233 893.55 392,072 970,794 893.60 393,743 990,440 893.65 395,415 1,010,169 893.70 397,087 1,029,981 893.75 398,758 1,049,877 893.80 400,430 1,069,857 893.85 402,102 1,089,920 893.90 403,773 1,110,067 893.95 405,445 1,130,298 894.00 407,117 1,150,612 894.05 408,788 1,171,009 894.10 410,460 1,191,491 894.15 412,132 1,212,055 894.20 413,803 1,232,704 894.25 415,475 1,253,436 894.30 417,147 1,274,251 894.35 418,818 1,295,150 894.40 420,490 1,316,133 894.45 422,162 1,337,199 894.50 423,833 1,358,349 894.55 425,505 1,379,583 894.60 427,177 1,400,900 894.65 428,848 1,422,300 894.70 430,520 1,443,785 894.75 432,192 1,465,352 894.80 433,863 1,487,004 894.85 435,535 1,508,739 894.90 437,207 1,530,557 894.95 438,878 1,552,459 895.00 440,550 1,574,445 MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 182HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Time span=0.00-360.00 hrs, dt=0.01 hrs, 36001 points Runoff by SCS TR-20 method, UH=SCS, Weighted-Q Reach routing by Dyn-Stor-Ind method - Pond routing by Dyn-Stor-Ind method Runoff Area=27,760 sf 0.00% Impervious Runoff Depth=0.79"Subcatchment 0S: To Powers - North Flow Length=212' Tc=6.5 min CN=58 Runoff=0.69 cfs 0.042 af Runoff Area=29,120 sf 0.00% Impervious Runoff Depth=1.41"Subcatchment 00S: To Powers - South Flow Length=198' Tc=7.2 min CN=WQ Runoff=1.48 cfs 0.079 af Runoff Area=90,310 sf 0.00% Impervious Runoff Depth=0.79"Subcatchment 1S: To Lyman - NE Flow Length=122' Slope=0.1600 '/' Tc=5.0 min CN=58 Runoff=2.48 cfs 0.137 af Runoff Area=687,520 sf 4.63% Impervious Runoff Depth=2.28"Subcatchment 2S: Wetland 2 Flow Length=1,087' Tc=26.4 min CN=WQ Runoff=32.37 cfs 3.003 af Runoff Area=560,145 sf 0.00% Impervious Runoff Depth=2.17"Subcatchment 3S: Wetland 1 Flow Length=585' Tc=16.8 min CN=WQ Runoff=31.72 cfs 2.320 af Runoff Area=35,675 sf 0.00% Impervious Runoff Depth=2.10"Subcatchment 4oS: From Powers Flow Length=320' Tc=6.0 min CN=78 Runoff=3.14 cfs 0.144 af Runoff Area=232,825 sf 0.00% Impervious Runoff Depth=2.08"Subcatchment 4S: Wetland 8 Flow Length=472' Tc=18.3 min CN=WQ Runoff=12.38 cfs 0.928 af Runoff Area=4,669 sf 0.00% Impervious Runoff Depth=0.79"Subcatchment 16oS: East Offsite Tc=10.0 min CN=58 Runoff=0.10 cfs 0.007 af Runoff Area=9.400 ac 0.00% Impervious Runoff Depth=2.89"Subcatchment 61S: Powers (from SRF) Tc=9.0 min CN=87 Runoff=42.32 cfs 2.260 af Runoff Area=4.200 ac 0.00% Impervious Runoff Depth=2.35"Subcatchment 62S: NE Ramp (from SRF) Tc=8.0 min CN=81 Runoff=16.23 cfs 0.823 af Runoff Area=8.200 ac 0.00% Impervious Runoff Depth=2.89"Subcatchment 63S: TH 212 (from SRF) Tc=12.0 min CN=87 Runoff=32.44 cfs 1.972 af Runoff Area=7.800 ac 0.00% Impervious Runoff Depth=2.03"Subcatchment 64S: Englewood (from SRF) Tc=10.0 min CN=77 Runoff=23.60 cfs 1.316 af Runoff Area=6.400 ac 0.00% Impervious Runoff Depth=2.52"Subcatchment 65S: LYMLP (from SRF) Tc=15.0 min CN=83 Runoff=19.99 cfs 1.345 af Runoff Area=1.900 ac 0.00% Impervious Runoff Depth=3.59"Subcatchment 66S: N54 (from SRF) Tc=7.6 min CN=94 Runoff=10.86 cfs 0.568 af Runoff Area=0.440 ac 100.00% Impervious Runoff Depth=4.27"Subcatchment 67-1S: Fresh MDW Tc=7.0 min CN=100 Runoff=2.75 cfs 0.157 af Runoff Area=1.100 ac 0.00% Impervious Runoff Depth=1.58"Subcatchment 67-2S: Fresh MDW Subcatch Tc=7.0 min CN=71 Runoff=2.91 cfs 0.145 af MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 183HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Runoff Area=2.300 ac 0.00% Impervious Runoff Depth=0.00"Subcatchment 67-3S: Fresh MDW Subcatch Tc=83.0 min CN=10 Runoff=0.00 cfs 0.000 af Runoff Area=17.000 ac 0.00% Impervious Runoff Depth=1.80"Subcatchment 68S: M10 Tc=10.0 min CN=74 Runoff=45.10 cfs 2.546 af Inflow=55.12 cfs 6.205 afReach 1R: Lake Susan Drainage Outflow=55.12 cfs 6.205 af Avg. Flow Depth=1.54' Max Vel=3.34 fps Inflow=64.94 cfs 8.466 afReach 61R: NERDITCH n=0.035 L=545.0' S=0.0055 '/' Capacity=737.08 cfs Outflow=64.81 cfs 8.466 af Avg. Flow Depth=1.53' Max Vel=6.27 fps Inflow=16.23 cfs 0.823 afReach 62R: L42 24.0" Round Pipe n=0.012 L=200.0' S=0.0050 '/' Capacity=17.33 cfs Outflow=16.13 cfs 0.823 af Peak Elev=909.69' Storage=7,304 cf Inflow=32.37 cfs 3.003 afPond 2P: Wetland 2 Outflow=31.35 cfs 3.003 af Peak Elev=907.21' Storage=60,212 cf Inflow=55.27 cfs 5.323 afPond 3P: Basin 3 (Wetland 1) Outflow=45.91 cfs 4.869 af Peak Elev=898.56' Storage=1,681 cf Inflow=53.87 cfs 5.941 afPond 4P: Powers Culvert 54.0" Round Culvert n=0.013 L=191.0' S=0.0062 '/' Outflow=53.75 cfs 5.941 af Peak Elev=894.03' Storage=298,315 cf Inflow=127.10 cfs 12.576 afPond 61P: Englewood Pond Outflow=22.05 cfs 12.520 af Peak Elev=898.12' Storage=44,673 cf Inflow=31.73 cfs 2.215 afPond 65P: Fresh MDW Outflow=8.68 cfs 2.061 af Peak Elev=892.43' Storage=553,643 cf Inflow=53.71 cfs 17.127 afPond 68P: East MNDOT M10 Wetland Outflow=2.65 cfs 13.794 af Total Runoff Area = 97.033 ac Runoff Volume = 17.791 af Average Runoff Depth = 2.20" 98.79% Pervious = 95.862 ac 1.21% Impervious = 1.170 ac MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 184HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 0S: To Powers - North Runoff = 0.69 cfs @ 12.11 hrs, Volume= 0.042 af, Depth= 0.79" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Area (sf) CN Description 27,760 58 Meadow, non-grazed, HSG B 27,760 58 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 5.6 75 0.0530 0.22 Sheet Flow, Grass: Short n= 0.150 P2= 2.87" 0.9 137 0.1240 2.46 Shallow Concentrated Flow, Short Grass Pasture Kv= 7.0 fps 6.5 212 Total Subcatchment 0S: To Powers - North Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.75 0.7 0.65 0.6 0.55 0.5 0.45 0.4 0.35 0.3 0.25 0.2 0.15 0.1 0.05 0 MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Runoff Area=27,760 sf Runoff Volume=0.042 af Runoff Depth=0.79" Flow Length=212' Tc=6.5 min CN=58 0.69 cfs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 185HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 00S: To Powers - South Runoff = 1.48 cfs @ 12.11 hrs, Volume= 0.079 af, Depth= 1.41" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Area (sf) CN Description 14,560 55 Woods, Good, HSG B 14,560 79 Pasture/grassland/range, Poor, HSG B 29,120 Weighted Average 29,120 67 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 4.3 38 0.0200 0.15 Sheet Flow, Range n= 0.130 P2= 2.87" 2.9 160 0.0170 0.91 Shallow Concentrated Flow, Short Grass Pasture Kv= 7.0 fps 7.2 198 Total Subcatchment 00S: To Powers - South Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)1 0 MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Runoff Area=29,120 sf Runoff Volume=0.079 af Runoff Depth=1.41" Flow Length=198' Tc=7.2 min CN=WQ 1.48 cfs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 186HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 1S: To Lyman - NE Runoff = 2.48 cfs @ 12.09 hrs, Volume= 0.137 af, Depth= 0.79" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Area (sf) CN Description 90,310 58 Meadow, non-grazed, HSG B 90,310 58 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 2.6 50 0.1600 0.32 Sheet Flow, Grass: Short n= 0.150 P2= 2.87" 0.4 72 0.1600 2.80 Shallow Concentrated Flow, Short Grass Pasture Kv= 7.0 fps 2.0 Direct Entry, Make up to 5 Minutes 5.0 122 Total Subcatchment 1S: To Lyman - NE Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)2 1 0 MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Runoff Area=90,310 sf Runoff Volume=0.137 af Runoff Depth=0.79" Flow Length=122' Slope=0.1600 '/' Tc=5.0 min CN=58 2.48 cfs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 187HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 2S: Wetland 2 Runoff = 32.37 cfs @ 12.35 hrs, Volume= 3.003 af, Depth= 2.28" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Area (sf) CN Description 31,810 98 Water Surface, HSG D * 70,790 96 Wetland 79,915 79 Pasture/grassland/range, Poor, HSG B * 86,270 61 Grasses, Good, HSG B 418,735 79 Pasture/grassland/range, Poor, HSG B 687,520 Weighted Average 655,710 78 95.37% Pervious Area 31,810 98 4.63% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 9.2 135 0.0370 0.25 Sheet Flow, Range n= 0.130 P2= 2.87" 0.4 60 0.1310 2.53 Shallow Concentrated Flow, Short Grass Pasture Kv= 7.0 fps 0.1 46 0.6500 5.64 Shallow Concentrated Flow, Short Grass Pasture Kv= 7.0 fps 1.4 90 0.0220 1.04 Shallow Concentrated Flow, Short Grass Pasture Kv= 7.0 fps 0.9 52 0.0190 0.96 Shallow Concentrated Flow, Short Grass Pasture Kv= 7.0 fps 1.3 94 0.0320 1.25 Shallow Concentrated Flow, Short Grass Pasture Kv= 7.0 fps 2.3 210 0.0480 1.53 Shallow Concentrated Flow, Short Grass Pasture Kv= 7.0 fps 0.4 50 0.0200 2.12 Shallow Concentrated Flow, Wetland Grassed Waterway Kv= 15.0 fps 10.4 350 0.0014 0.56 Shallow Concentrated Flow, Wetland Grassed Waterway Kv= 15.0 fps 26.4 1,087 Total MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 188HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Subcatchment 2S: Wetland 2 Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)36 34 32 30 28 26 24 22 20 18 16 14 12 10 8 6 4 2 0 MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Runoff Area=687,520 sf Runoff Volume=3.003 af Runoff Depth=2.28" Flow Length=1,087' Tc=26.4 min CN=WQ 32.37 cfs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 189HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 3S: Wetland 1 Runoff = 31.72 cfs @ 12.23 hrs, Volume= 2.320 af, Depth= 2.17" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Area (sf) CN Description * 56,025 96 Wetland, HSG D 55,045 79 Pasture/grassland/range, Poor, HSG B 62,080 55 Woods, Good, HSG B 349,085 79 Pasture/grassland/range, Poor, HSG B 37,910 77 Woods, Good, HSG D 560,145 Weighted Average 560,145 78 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 9.2 100 0.0200 0.18 Sheet Flow, Range n= 0.130 P2= 2.87" 7.2 438 0.0210 1.01 Shallow Concentrated Flow, Short Grass Pasture Kv= 7.0 fps 0.4 47 0.0150 1.84 Shallow Concentrated Flow, Wetland Grassed Waterway Kv= 15.0 fps 16.8 585 Total Subcatchment 3S: Wetland 1 Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)34 32 30 28 26 24 22 20 18 16 14 12 10 8 6 4 2 0 MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Runoff Area=560,145 sf Runoff Volume=2.320 af Runoff Depth=2.17" Flow Length=585' Tc=16.8 min CN=WQ 31.72 cfs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 190HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 4oS: From Powers Runoff = 3.14 cfs @ 12.09 hrs, Volume= 0.144 af, Depth= 2.10" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Area (sf) CN Description 35,675 78 Meadow, non-grazed, HSG D 35,675 78 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 3.5 75 0.1670 0.36 Sheet Flow, Grass: Short n= 0.150 P2= 2.87" 2.5 245 0.0550 1.64 Shallow Concentrated Flow, Short Grass Pasture Kv= 7.0 fps 6.0 320 Total Subcatchment 4oS: From Powers Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)3 2 1 0 MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Runoff Area=35,675 sf Runoff Volume=0.144 af Runoff Depth=2.10" Flow Length=320' Tc=6.0 min CN=78 3.14 cfs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 191HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 4S: Wetland 8 Runoff = 12.38 cfs @ 12.26 hrs, Volume= 0.928 af, Depth= 2.08" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Area (sf) CN Description * 2,815 96 Wetland, HSG D 15,470 55 Woods, Good, HSG B 150,205 79 Pasture/grassland/range, Poor, HSG B 37,925 79 Pasture/grassland/range, Poor, HSG B 26,410 77 Woods, Good, HSG D 232,825 Weighted Average 232,825 77 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 10.4 50 0.0350 0.08 Sheet Flow, Woods: Light underbrush n= 0.400 P2= 2.87" 4.2 50 0.0350 0.20 Sheet Flow, Range n= 0.130 P2= 2.87" 3.5 325 0.0490 1.55 Shallow Concentrated Flow, Short Grass Pasture Kv= 7.0 fps 0.2 47 0.0600 3.67 Shallow Concentrated Flow, Wetland Grassed Waterway Kv= 15.0 fps 18.3 472 Total MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 192HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Subcatchment 4S: Wetland 8 Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)13 12 11 10 9 8 7 6 5 4 3 2 1 0 MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Runoff Area=232,825 sf Runoff Volume=0.928 af Runoff Depth=2.08" Flow Length=472' Tc=18.3 min CN=WQ 12.38 cfs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 193HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 16oS: East Offsite Runoff = 0.10 cfs @ 12.16 hrs, Volume= 0.007 af, Depth= 0.79" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Area (sf) CN Description 4,669 58 Meadow, non-grazed, HSG B 4,669 58 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 10.0 Direct Entry, Subcatchment 16oS: East Offsite Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.105 0.1 0.095 0.09 0.085 0.08 0.075 0.07 0.065 0.06 0.055 0.05 0.045 0.04 0.035 0.03 0.025 0.02 0.015 0.01 0.005 0 MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Runoff Area=4,669 sf Runoff Volume=0.007 af Runoff Depth=0.79" Tc=10.0 min CN=58 0.10 cfs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 194HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 61S: Powers (from SRF) Runoff = 42.32 cfs @ 12.12 hrs, Volume= 2.260 af, Depth= 2.89" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Area (ac) CN Description * 9.400 87 Weighted 9.400 87 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 9.0 Direct Entry, Subcatchment 61S: Powers (from SRF) Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)46 44 42 40 38 36 34 32 30 28 26 24 22 20 18 16 14 12 10 8 6 4 2 0 MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Runoff Area=9.400 ac Runoff Volume=2.260 af Runoff Depth=2.89" Tc=9.0 min CN=87 42.32 cfs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 195HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 62S: NE Ramp (from SRF) Runoff = 16.23 cfs @ 12.11 hrs, Volume= 0.823 af, Depth= 2.35" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Area (ac) CN Description * 4.200 81 Weighted 4.200 81 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 8.0 Direct Entry, Subcatchment 62S: NE Ramp (from SRF) Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Runoff Area=4.200 ac Runoff Volume=0.823 af Runoff Depth=2.35" Tc=8.0 min CN=81 16.23 cfs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 196HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 63S: TH 212 (from SRF) Runoff = 32.44 cfs @ 12.16 hrs, Volume= 1.972 af, Depth= 2.89" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Area (ac) CN Description * 8.200 87 Weighted 8.200 87 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 12.0 Direct Entry, Subcatchment 63S: TH 212 (from SRF) Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)36 34 32 30 28 26 24 22 20 18 16 14 12 10 8 6 4 2 0 MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Runoff Area=8.200 ac Runoff Volume=1.972 af Runoff Depth=2.89" Tc=12.0 min CN=87 32.44 cfs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 197HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 64S: Englewood (from SRF) Runoff = 23.60 cfs @ 12.14 hrs, Volume= 1.316 af, Depth= 2.03" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Area (ac) CN Description * 7.800 77 Weighted 7.800 77 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 10.0 Direct Entry, Subcatchment 64S: Englewood (from SRF) Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Runoff Area=7.800 ac Runoff Volume=1.316 af Runoff Depth=2.03" Tc=10.0 min CN=77 23.60 cfs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 198HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 65S: LYMLP (from SRF) Runoff = 19.99 cfs @ 12.20 hrs, Volume= 1.345 af, Depth= 2.52" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Area (ac) CN Description * 6.400 83 Weighted 6.400 83 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 15.0 Direct Entry, Subcatchment 65S: LYMLP (from SRF) Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Runoff Area=6.400 ac Runoff Volume=1.345 af Runoff Depth=2.52" Tc=15.0 min CN=83 19.99 cfs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 199HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 66S: N54 (from SRF) Runoff = 10.86 cfs @ 12.10 hrs, Volume= 0.568 af, Depth= 3.59" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Area (ac) CN Description * 1.900 94 Weighted 1.900 94 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 7.6 Direct Entry, Subcatchment 66S: N54 (from SRF) Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)12 11 10 9 8 7 6 5 4 3 2 1 0 MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Runoff Area=1.900 ac Runoff Volume=0.568 af Runoff Depth=3.59" Tc=7.6 min CN=94 10.86 cfs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 200HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 67-1S: Fresh MDW Subcatch 1 (from SRF) Runoff = 2.75 cfs @ 12.09 hrs, Volume= 0.157 af, Depth= 4.27" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Area (ac) CN Description * 0.440 100 Weighted 0.440 100 100.00% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 7.0 Direct Entry, Subcatchment 67-1S: Fresh MDW Subcatch 1 (from SRF) Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)3 2 1 0 MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Runoff Area=0.440 ac Runoff Volume=0.157 af Runoff Depth=4.27" Tc=7.0 min CN=100 2.75 cfs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 201HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 67-2S: Fresh MDW Subcatch 2 (from SRF) Runoff = 2.91 cfs @ 12.10 hrs, Volume= 0.145 af, Depth= 1.58" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Area (ac) CN Description * 1.100 71 Weighted 1.100 71 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 7.0 Direct Entry, Subcatchment 67-2S: Fresh MDW Subcatch 2 (from SRF) Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)3 2 1 0 MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Runoff Area=1.100 ac Runoff Volume=0.145 af Runoff Depth=1.58" Tc=7.0 min CN=71 2.91 cfs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 202HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 67-3S: Fresh MDW Subcatch 3 (from SRF) [45] Hint: Runoff=Zero Runoff = 0.00 cfs @ 0.00 hrs, Volume= 0.000 af, Depth= 0.00" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Area (ac) CN Description * 2.300 10 Weighted 2.300 10 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 83.0 Direct Entry, Subcatchment 67-3S: Fresh MDW Subcatch 3 (from SRF) Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)1 0 MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Runoff Area=2.300 ac Runoff Volume=0.000 af Runoff Depth=0.00" Tc=83.0 min CN=10 0.00 cfs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 203HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 68S: M10 Runoff = 45.10 cfs @ 12.14 hrs, Volume= 2.546 af, Depth= 1.80" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Area (ac) CN Description * 17.000 74 Weighted 17.000 74 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 10.0 Direct Entry, Subcatchment 68S: M10 Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)50 48 46 44 42 40 38 36 34 32 30 28 26 24 22 20 18 16 14 12 10 8 6 4 2 0 MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Runoff Area=17.000 ac Runoff Volume=2.546 af Runoff Depth=1.80" Tc=10.0 min CN=74 45.10 cfs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 204HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Reach 1R: Lake Susan Drainage [40] Hint: Not Described (Outflow=Inflow) Inflow Area = 38.293 ac, 1.91% Impervious, Inflow Depth = 1.94" for 10y 24hr event Inflow = 55.12 cfs @ 12.48 hrs, Volume= 6.205 af Outflow = 55.12 cfs @ 12.48 hrs, Volume= 6.205 af, Atten= 0%, Lag= 0.0 min Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Reach 1R: Lake Susan Drainage Inflow Outflow Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)60 55 50 45 40 35 30 25 20 15 10 5 0 Inflow Area=38.293 ac 55.12 cfs 55.12 cfs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 205HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Reach 61R: NERDITCH Inflow Area = 47.693 ac, 1.53% Impervious, Inflow Depth = 2.13" for 10y 24hr event Inflow = 64.94 cfs @ 12.44 hrs, Volume= 8.466 af Outflow = 64.81 cfs @ 12.47 hrs, Volume= 8.466 af, Atten= 0%, Lag= 1.6 min Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Max. Velocity= 3.34 fps, Min. Travel Time= 2.7 min Avg. Velocity = 0.46 fps, Avg. Travel Time= 19.8 min Peak Storage= 10,562 cf @ 12.47 hrs Average Depth at Peak Storage= 1.54' Bank-Full Depth= 5.00' Flow Area= 115.0 sf, Capacity= 737.08 cfs 8.00' x 5.00' deep channel, n= 0.035 Side Slope Z-value= 3.0 '/' Top Width= 38.00' Length= 545.0' Slope= 0.0055 '/' Inlet Invert= 895.00', Outlet Invert= 892.00' ‡ Reach 61R: NERDITCH Inflow Outflow Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)70 65 60 55 50 45 40 35 30 25 20 15 10 5 0 Inflow Area=47.693 ac Avg. Flow Depth=1.54' Max Vel=3.34 fps n=0.035 L=545.0' S=0.0055 '/' Capacity=737.08 cfs 64.94 cfs 64.81 cfs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 206HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Stage-Area-Storage for Reach 61R: NERDITCH Elevation (feet) End-Area (sq-ft) Storage (cubic-feet) 895.00 0.0 0 895.05 0.4 222 895.10 0.8 452 895.15 1.3 691 895.20 1.7 937 895.25 2.2 1,192 895.30 2.7 1,455 895.35 3.2 1,726 895.40 3.7 2,006 895.45 4.2 2,293 895.50 4.8 2,589 895.55 5.3 2,893 895.60 5.9 3,205 895.65 6.5 3,525 895.70 7.1 3,853 895.75 7.7 4,190 895.80 8.3 4,534 895.85 9.0 4,887 895.90 9.6 5,248 895.95 10.3 5,618 896.00 11.0 5,995 896.05 11.7 6,381 896.10 12.4 6,774 896.15 13.2 7,176 896.20 13.9 7,586 896.25 14.7 8,005 896.30 15.5 8,431 896.35 16.3 8,866 896.40 17.1 9,309 896.45 17.9 9,760 896.50 18.8 10,219 896.55 19.6 10,686 896.60 20.5 11,162 896.65 21.4 11,645 896.70 22.3 12,137 896.75 23.2 12,637 896.80 24.1 13,145 896.85 25.1 13,662 896.90 26.0 14,186 896.95 27.0 14,719 897.00 28.0 15,260 897.05 29.0 15,809 897.10 30.0 16,366 897.15 31.1 16,932 897.20 32.1 17,505 897.25 33.2 18,087 897.30 34.3 18,677 897.35 35.4 19,275 897.40 36.5 19,882 897.45 37.6 20,496 897.50 38.8 21,119 897.55 39.9 21,750 Elevation (feet) End-Area (sq-ft) Storage (cubic-feet) 897.60 41.1 22,389 897.65 42.3 23,036 897.70 43.5 23,691 897.75 44.7 24,355 897.80 45.9 25,026 897.85 47.2 25,706 897.90 48.4 26,394 897.95 49.7 27,091 898.00 51.0 27,795 898.05 52.3 28,508 898.10 53.6 29,228 898.15 55.0 29,957 898.20 56.3 30,694 898.25 57.7 31,440 898.30 59.1 32,193 898.35 60.5 32,955 898.40 61.9 33,725 898.45 63.3 34,503 898.50 64.8 35,289 898.55 66.2 36,083 898.60 67.7 36,886 898.65 69.2 37,696 898.70 70.7 38,515 898.75 72.2 39,342 898.80 73.7 40,177 898.85 75.3 41,021 898.90 76.8 41,872 898.95 78.4 42,732 899.00 80.0 43,600 899.05 81.6 44,476 899.10 83.2 45,360 899.15 84.9 46,253 899.20 86.5 47,153 899.25 88.2 48,062 899.30 89.9 48,979 899.35 91.6 49,904 899.40 93.3 50,838 899.45 95.0 51,779 899.50 96.8 52,729 899.55 98.5 53,687 899.60 100.3 54,653 899.65 102.1 55,627 899.70 103.9 56,609 899.75 105.7 57,600 899.80 107.5 58,598 899.85 109.4 59,605 899.90 111.2 60,620 899.95 113.1 61,644 900.00 115.0 62,675 MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 207HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Reach 62R: L42 [52] Hint: Inlet/Outlet conditions not evaluated Inflow Area = 4.200 ac, 0.00% Impervious, Inflow Depth = 2.35" for 10y 24hr event Inflow = 16.23 cfs @ 12.11 hrs, Volume= 0.823 af Outflow = 16.13 cfs @ 12.12 hrs, Volume= 0.823 af, Atten= 1%, Lag= 0.5 min Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Max. Velocity= 6.27 fps, Min. Travel Time= 0.5 min Avg. Velocity = 2.01 fps, Avg. Travel Time= 1.7 min Peak Storage= 515 cf @ 12.12 hrs Average Depth at Peak Storage= 1.53' Bank-Full Depth= 2.00' Flow Area= 3.1 sf, Capacity= 17.33 cfs 24.0" Round Pipe n= 0.012 Length= 200.0' Slope= 0.0050 '/' Inlet Invert= 893.00', Outlet Invert= 892.00' Reach 62R: L42 Inflow Outflow Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 Inflow Area=4.200 ac Avg. Flow Depth=1.53' Max Vel=6.27 fps 24.0" Round Pipe n=0.012 L=200.0' S=0.0050 '/' Capacity=17.33 cfs 16.23 cfs 16.13 cfs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 208HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Stage-Area-Storage for Reach 62R: L42 Elevation (feet) End-Area (sq-ft) Storage (cubic-feet) 893.00 0.0 0 893.02 0.0 1 893.04 0.0 3 893.06 0.0 5 893.08 0.0 8 893.10 0.1 12 893.12 0.1 15 893.14 0.1 19 893.16 0.1 24 893.18 0.1 28 893.20 0.2 33 893.22 0.2 38 893.24 0.2 43 893.26 0.2 48 893.28 0.3 53 893.30 0.3 59 893.32 0.3 65 893.34 0.4 71 893.36 0.4 77 893.38 0.4 83 893.40 0.4 89 893.42 0.5 96 893.44 0.5 102 893.46 0.5 109 893.48 0.6 116 893.50 0.6 123 893.52 0.6 130 893.54 0.7 137 893.56 0.7 144 893.58 0.8 151 893.60 0.8 159 893.62 0.8 166 893.64 0.9 173 893.66 0.9 181 893.68 0.9 188 893.70 1.0 196 893.72 1.0 204 893.74 1.1 211 893.76 1.1 219 893.78 1.1 227 893.80 1.2 235 893.82 1.2 243 893.84 1.3 250 893.86 1.3 258 893.88 1.3 266 893.90 1.4 274 893.92 1.4 282 893.94 1.5 290 893.96 1.5 298 893.98 1.5 306 894.00 1.6 314 894.02 1.6 322 Elevation (feet) End-Area (sq-ft) Storage (cubic-feet) 894.04 1.7 330 894.06 1.7 338 894.08 1.7 346 894.10 1.8 354 894.12 1.8 362 894.14 1.8 370 894.16 1.9 378 894.18 1.9 386 894.20 2.0 394 894.22 2.0 401 894.24 2.0 409 894.26 2.1 417 894.28 2.1 425 894.30 2.2 432 894.32 2.2 440 894.34 2.2 447 894.36 2.3 455 894.38 2.3 462 894.40 2.3 470 894.42 2.4 477 894.44 2.4 484 894.46 2.5 491 894.48 2.5 499 894.50 2.5 505 894.52 2.6 512 894.54 2.6 519 894.56 2.6 526 894.58 2.7 532 894.60 2.7 539 894.62 2.7 545 894.64 2.8 551 894.66 2.8 557 894.68 2.8 563 894.70 2.8 569 894.72 2.9 575 894.74 2.9 580 894.76 2.9 586 894.78 3.0 591 894.80 3.0 596 894.82 3.0 600 894.84 3.0 605 894.86 3.0 609 894.88 3.1 613 894.90 3.1 617 894.92 3.1 620 894.94 3.1 623 894.96 3.1 625 894.98 3.1 627 895.00 3.1 628 MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 209HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Pond 2P: Wetland 2 Inflow Area = 15.783 ac, 4.63% Impervious, Inflow Depth = 2.28" for 10y 24hr event Inflow = 32.37 cfs @ 12.35 hrs, Volume= 3.003 af Outflow = 31.35 cfs @ 12.42 hrs, Volume= 3.003 af, Atten= 3%, Lag= 3.9 min Primary = 31.35 cfs @ 12.42 hrs, Volume= 3.003 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 909.69' @ 12.42 hrs Surf.Area= 50,986 sf Storage= 7,304 cf Plug-Flow detention time= 6.1 min calculated for 3.003 af (100% of inflow) Center-of-Mass det. time= 6.2 min ( 815.0 - 808.9 ) Volume Invert Avail.Storage Storage Description #1 909.50' 137,271 cf Custom Stage Data (Prismatic) Listed below (Recalc) Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 909.50 25,770 0 0 910.00 92,020 29,448 29,448 911.00 123,627 107,824 137,271 Device Routing Invert Outlet Devices #1 Primary 909.50'Asymmetrical Weir, C= 3.27 Offset (feet) 0.00 45.00 95.00 196.00 241.00 301.00 Height (feet) 1.50 0.50 0.00 0.00 0.50 1.50 Primary OutFlow Max=31.34 cfs @ 12.42 hrs HW=909.69' TW=907.20' (Dynamic Tailwater) 1=Asymmetrical Weir (Weir Controls 31.34 cfs @ 1.20 fps) MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 210HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Pond 2P: Wetland 2 Inflow Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)36 34 32 30 28 26 24 22 20 18 16 14 12 10 8 6 4 2 0 Inflow Area=15.783 ac Peak Elev=909.69' Storage=7,304 cf 32.37 cfs 31.35 cfs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 211HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Stage-Area-Storage for Pond 2P: Wetland 2 Elevation (feet) Surface (sq-ft) Storage (cubic-feet) 909.50 25,770 0 909.52 28,420 542 909.54 31,070 1,137 909.56 33,720 1,785 909.58 36,370 2,486 909.60 39,020 3,240 909.62 41,670 4,046 909.64 44,320 4,906 909.66 46,970 5,819 909.68 49,620 6,785 909.70 52,270 7,804 909.72 54,920 8,876 909.74 57,570 10,001 909.76 60,220 11,179 909.78 62,870 12,410 909.80 65,520 13,693 909.82 68,170 15,030 909.84 70,820 16,420 909.86 73,470 17,863 909.88 76,120 19,359 909.90 78,770 20,908 909.92 81,420 22,510 909.94 84,070 24,165 909.96 86,720 25,873 909.98 89,370 27,634 910.00 92,020 29,448 910.02 92,652 31,294 910.04 93,284 33,154 910.06 93,916 35,026 910.08 94,549 36,910 910.10 95,181 38,808 910.12 95,813 40,717 910.14 96,445 42,640 910.16 97,077 44,575 910.18 97,709 46,523 910.20 98,341 48,484 910.22 98,974 50,457 910.24 99,606 52,443 910.26 100,238 54,441 910.28 100,870 56,452 910.30 101,502 58,476 910.32 102,134 60,512 910.34 102,766 62,561 910.36 103,399 64,623 910.38 104,031 66,697 910.40 104,663 68,784 910.42 105,295 70,884 910.44 105,927 72,996 910.46 106,559 75,121 910.48 107,191 77,258 910.50 107,824 79,408 910.52 108,456 81,571 Elevation (feet) Surface (sq-ft) Storage (cubic-feet) 910.54 109,088 83,747 910.56 109,720 85,935 910.58 110,352 88,135 910.60 110,984 90,349 910.62 111,616 92,575 910.64 112,248 94,813 910.66 112,881 97,065 910.68 113,513 99,329 910.70 114,145 101,605 910.72 114,777 103,894 910.74 115,409 106,196 910.76 116,041 108,511 910.78 116,673 110,838 910.80 117,306 113,178 910.82 117,938 115,530 910.84 118,570 117,895 910.86 119,202 120,273 910.88 119,834 122,663 910.90 120,466 125,066 910.92 121,098 127,482 910.94 121,731 129,910 910.96 122,363 132,351 910.98 122,995 134,805 911.00 123,627 137,271 MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 212HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Pond 3P: Basin 3 (Wetland 1) Inflow Area = 28.642 ac, 2.55% Impervious, Inflow Depth = 2.23" for 10y 24hr event Inflow = 55.27 cfs @ 12.31 hrs, Volume= 5.323 af Outflow = 45.91 cfs @ 12.49 hrs, Volume= 4.869 af, Atten= 17%, Lag= 10.9 min Primary = 45.91 cfs @ 12.49 hrs, Volume= 4.869 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 907.21' @ 12.49 hrs Surf.Area= 71,546 sf Storage= 60,212 cf Plug-Flow detention time= 111.0 min calculated for 4.869 af (91% of inflow) Center-of-Mass det. time= 73.8 min ( 884.1 - 810.3 ) Volume Invert Avail.Storage Storage Description #1 905.50' 251,588 cf Custom Stage Data (Prismatic) Listed below (Recalc) Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 905.50 0 0 0 906.00 18,685 4,671 4,671 907.00 63,607 41,146 45,817 908.00 100,875 82,241 128,058 909.00 146,184 123,530 251,588 Device Routing Invert Outlet Devices #1 Primary 906.50'Asymmetrical Weir, C= 3.27 Offset (feet) 0.00 28.00 115.00 135.00 155.00 184.00 204.00 Height (feet) 2.50 1.50 0.50 0.00 0.50 1.50 2.50 Primary OutFlow Max=45.90 cfs @ 12.49 hrs HW=907.21' TW=898.56' (Dynamic Tailwater) 1=Asymmetrical Weir (Weir Controls 45.90 cfs @ 1.36 fps) MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 213HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Pond 3P: Basin 3 (Wetland 1) Inflow Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)60 55 50 45 40 35 30 25 20 15 10 5 0 Inflow Area=28.642 ac Peak Elev=907.21' Storage=60,212 cf 55.27 cfs 45.91 cfs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 214HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Stage-Area-Storage for Pond 3P: Basin 3 (Wetland 1) Elevation (feet) Surface (sq-ft) Storage (cubic-feet) 905.50 0 0 905.55 1,868 47 905.60 3,737 187 905.65 5,605 420 905.70 7,474 747 905.75 9,343 1,168 905.80 11,211 1,682 905.85 13,080 2,289 905.90 14,948 2,990 905.95 16,817 3,784 906.00 18,685 4,671 906.05 20,931 5,662 906.10 23,177 6,764 906.15 25,423 7,979 906.20 27,669 9,307 906.25 29,916 10,746 906.30 32,162 12,298 906.35 34,408 13,962 906.40 36,654 15,739 906.45 38,900 17,628 906.50 41,146 19,629 906.55 43,392 21,742 906.60 45,638 23,968 906.65 47,884 26,306 906.70 50,130 28,757 906.75 52,377 31,319 906.80 54,623 33,994 906.85 56,869 36,782 906.90 59,115 39,681 906.95 61,361 42,693 907.00 63,607 45,817 907.05 65,470 49,044 907.10 67,334 52,364 907.15 69,197 55,778 907.20 71,061 59,284 907.25 72,924 62,884 907.30 74,787 66,576 907.35 76,651 70,362 907.40 78,514 74,241 907.45 80,378 78,214 907.50 82,241 82,279 907.55 84,104 86,438 907.60 85,968 90,690 907.65 87,831 95,035 907.70 89,695 99,473 907.75 91,558 104,004 907.80 93,421 108,629 907.85 95,285 113,346 907.90 97,148 118,157 907.95 99,012 123,061 908.00 100,875 128,058 908.05 103,140 133,159 Elevation (feet) Surface (sq-ft) Storage (cubic-feet) 908.10 105,406 138,372 908.15 107,671 143,699 908.20 109,937 149,139 908.25 112,202 154,693 908.30 114,468 160,360 908.35 116,733 166,140 908.40 118,999 172,033 908.45 121,264 178,040 908.50 123,530 184,159 908.55 125,795 190,392 908.60 128,060 196,739 908.65 130,326 203,199 908.70 132,591 209,771 908.75 134,857 216,458 908.80 137,122 223,257 908.85 139,388 230,170 908.90 141,653 237,196 908.95 143,919 244,335 909.00 146,184 251,588 MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 215HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Pond 4P: Powers Culvert Inflow Area = 34.806 ac, 2.10% Impervious, Inflow Depth = 2.05" for 10y 24hr event Inflow = 53.87 cfs @ 12.46 hrs, Volume= 5.941 af Outflow = 53.75 cfs @ 12.48 hrs, Volume= 5.941 af, Atten= 0%, Lag= 1.0 min Primary = 53.75 cfs @ 12.48 hrs, Volume= 5.941 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 898.56' @ 12.48 hrs Surf.Area= 1,935 sf Storage= 1,681 cf Plug-Flow detention time= (not calculated: outflow precedes inflow) Center-of-Mass det. time= 0.3 min ( 871.1 - 870.8 ) Volume Invert Avail.Storage Storage Description #1 895.70' 165,537 cf Custom Stage Data (Prismatic) Listed below (Recalc) Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 895.70 1 0 0 896.00 12 2 2 898.00 877 889 891 899.00 2,760 1,819 2,709 900.00 8,250 5,505 8,214 901.00 16,910 12,580 20,794 902.00 26,632 21,771 42,565 903.00 36,506 31,569 74,134 904.00 44,700 40,603 114,737 905.00 56,900 50,800 165,537 Device Routing Invert Outlet Devices #1 Primary 895.71'54.0" Round Culvert L= 191.0' RCP, end-section conforming to fill, Ke= 0.500 Inlet / Outlet Invert= 895.71' / 894.53' S= 0.0062 '/' Cc= 0.900 n= 0.013 Concrete pipe, straight & clean, Flow Area= 15.90 sf Primary OutFlow Max=53.74 cfs @ 12.48 hrs HW=898.56' TW=0.00' (Dynamic Tailwater) 1=Culvert (Barrel Controls 53.74 cfs @ 7.21 fps) MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 216HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Pond 4P: Powers Culvert Inflow Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)60 55 50 45 40 35 30 25 20 15 10 5 0 Inflow Area=34.806 ac Peak Elev=898.56' Storage=1,681 cf 54.0" Round Culvert n=0.013 L=191.0' S=0.0062 '/' 53.87 cfs 53.75 cfs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 217HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Stage-Area-Storage for Pond 4P: Powers Culvert Elevation (feet) Surface (sq-ft) Storage (cubic-feet) 895.70 1 0 895.80 5 0 895.90 8 1 896.00 12 2 896.10 55 5 896.20 99 13 896.30 142 25 896.40 185 41 896.50 228 62 896.60 272 87 896.70 315 116 896.80 358 150 896.90 401 188 897.00 445 230 897.10 488 277 897.20 531 328 897.30 574 383 897.40 618 443 897.50 661 507 897.60 704 575 897.70 747 647 897.80 791 724 897.90 834 805 898.00 877 891 898.10 1,065 988 898.20 1,254 1,104 898.30 1,442 1,239 898.40 1,630 1,392 898.50 1,819 1,565 898.60 2,007 1,756 898.70 2,195 1,966 898.80 2,383 2,195 898.90 2,572 2,443 899.00 2,760 2,709 899.10 3,309 3,013 899.20 3,858 3,371 899.30 4,407 3,785 899.40 4,956 4,253 899.50 5,505 4,776 899.60 6,054 5,354 899.70 6,603 5,987 899.80 7,152 6,674 899.90 7,701 7,417 900.00 8,250 8,214 900.10 9,116 9,083 900.20 9,982 10,038 900.30 10,848 11,079 900.40 11,714 12,207 900.50 12,580 13,422 900.60 13,446 14,723 900.70 14,312 16,111 900.80 15,178 17,586 Elevation (feet) Surface (sq-ft) Storage (cubic-feet) 900.90 16,044 19,147 901.00 16,910 20,794 901.10 17,882 22,534 901.20 18,854 24,371 901.30 19,827 26,305 901.40 20,799 28,336 901.50 21,771 30,465 901.60 22,743 32,690 901.70 23,715 35,013 901.80 24,688 37,433 901.90 25,660 39,951 902.00 26,632 42,565 902.10 27,619 45,278 902.20 28,607 48,089 902.30 29,594 50,999 902.40 30,582 54,008 902.50 31,569 57,116 902.60 32,556 60,322 902.70 33,544 63,627 902.80 34,531 67,031 902.90 35,519 70,533 903.00 36,506 74,134 903.10 37,325 77,826 903.20 38,145 81,600 903.30 38,964 85,455 903.40 39,784 89,392 903.50 40,603 93,412 903.60 41,422 97,513 903.70 42,242 101,696 903.80 43,061 105,961 903.90 43,881 110,308 904.00 44,700 114,737 904.10 45,920 119,268 904.20 47,140 123,921 904.30 48,360 128,696 904.40 49,580 133,593 904.50 50,800 138,612 904.60 52,020 143,753 904.70 53,240 149,016 904.80 54,460 154,401 904.90 55,680 159,908 905.00 56,900 165,537 MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 218HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Pond 61P: Englewood Pond [62] Hint: Exceeded Reach 61R OUTLET depth by 1.43' @ 14.14 hrs [63] Warning: Exceeded Reach 62R INLET depth by 0.75' @ 13.74 hrs Inflow Area = 67.893 ac, 1.08% Impervious, Inflow Depth = 2.22" for 10y 24hr event Inflow = 127.10 cfs @ 12.15 hrs, Volume= 12.576 af Outflow = 22.05 cfs @ 13.51 hrs, Volume= 12.520 af, Atten= 83%, Lag= 81.2 min Primary = 22.05 cfs @ 13.51 hrs, Volume= 12.520 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 894.03' @ 13.51 hrs Surf.Area= 157,844 sf Storage= 298,315 cf Plug-Flow detention time= 538.3 min calculated for 12.520 af (100% of inflow) Center-of-Mass det. time= 527.7 min ( 1,361.8 - 834.1 ) Volume Invert Avail.Storage Storage Description #1 892.00' 1,031,055 cf Custom Stage Data (Prismatic) Listed below (Recalc) Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 892.00 136,580 0 0 895.00 168,060 456,960 456,960 898.00 214,670 574,095 1,031,055 Device Routing Invert Outlet Devices #1 Primary 892.00'42.0" Round Culvert L= 29.0' RCP, square edge headwall, Ke= 0.500 Inlet / Outlet Invert= 892.00' / 891.71' S= 0.0100 '/' Cc= 0.900 n= 0.013 Concrete pipe, straight & clean, Flow Area= 9.62 sf #2 Device 1 887.63'42.0" Round Culvert L= 13.0' RCP, end-section conforming to fill, Ke= 0.500 Inlet / Outlet Invert= 887.50' / 887.63' S= -0.0100 '/' Cc= 0.900 n= 0.013 Concrete pipe, straight & clean, Flow Area= 9.62 sf Primary OutFlow Max=22.05 cfs @ 13.51 hrs HW=894.03' TW=891.32' (Dynamic Tailwater) 1=Culvert (Barrel Controls 22.05 cfs @ 5.50 fps) 2=Culvert (Passes 22.05 cfs of 65.95 cfs potential flow) MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 219HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Pond 61P: Englewood Pond Inflow Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)140 130 120 110 100 90 80 70 60 50 40 30 20 10 0 Inflow Area=67.893 ac Peak Elev=894.03' Storage=298,315 cf 127.10 cfs 22.05 cfs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 220HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Stage-Area-Storage for Pond 61P: Englewood Pond Elevation (feet) Surface (sq-ft) Storage (cubic-feet) 892.00 136,580 0 892.10 137,629 13,710 892.20 138,679 27,526 892.30 139,728 41,446 892.40 140,777 55,471 892.50 141,827 69,602 892.60 142,876 83,837 892.70 143,925 98,177 892.80 144,975 112,622 892.90 146,024 127,172 893.00 147,073 141,827 893.10 148,123 156,586 893.20 149,172 171,451 893.30 150,221 186,421 893.40 151,271 201,495 893.50 152,320 216,675 893.60 153,369 231,959 893.70 154,419 247,349 893.80 155,468 262,843 893.90 156,517 278,442 894.00 157,567 294,147 894.10 158,616 309,956 894.20 159,665 325,870 894.30 160,715 341,889 894.40 161,764 358,013 894.50 162,813 374,242 894.60 163,863 390,575 894.70 164,912 407,014 894.80 165,961 423,558 894.90 167,011 440,206 895.00 168,060 456,960 895.10 169,614 473,844 895.20 171,167 490,883 895.30 172,721 508,077 895.40 174,275 525,427 895.50 175,828 542,932 895.60 177,382 560,593 895.70 178,936 578,408 895.80 180,489 596,380 895.90 182,043 614,506 896.00 183,597 632,788 896.10 185,150 651,226 896.20 186,704 669,818 896.30 188,258 688,566 896.40 189,811 707,470 896.50 191,365 726,529 896.60 192,919 745,743 896.70 194,472 765,112 896.80 196,026 784,637 896.90 197,580 804,318 897.00 199,133 824,153 897.10 200,687 844,144 Elevation (feet) Surface (sq-ft) Storage (cubic-feet) 897.20 202,241 864,291 897.30 203,794 884,592 897.40 205,348 905,050 897.50 206,902 925,662 897.60 208,455 946,430 897.70 210,009 967,353 897.80 211,563 988,432 897.90 213,116 1,009,666 898.00 214,670 1,031,055 MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 221HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Pond 65P: Fresh MDW Inflow Area = 12.140 ac, 3.62% Impervious, Inflow Depth = 2.19" for 10y 24hr event Inflow = 31.73 cfs @ 12.14 hrs, Volume= 2.215 af Outflow = 8.68 cfs @ 12.60 hrs, Volume= 2.061 af, Atten= 73%, Lag= 27.5 min Primary = 8.68 cfs @ 12.60 hrs, Volume= 2.061 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 898.12' @ 12.60 hrs Surf.Area= 23,668 sf Storage= 44,673 cf Plug-Flow detention time= 179.2 min calculated for 2.061 af (93% of inflow) Center-of-Mass det. time= 147.5 min ( 935.0 - 787.5 ) Volume Invert Avail.Storage Storage Description #1 896.00' 123,320 cf Custom Stage Data (Prismatic) Listed below (Recalc) Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 896.00 18,540 0 0 900.00 28,230 93,540 93,540 901.00 31,330 29,780 123,320 Device Routing Invert Outlet Devices #1 Primary 892.35'12.0" Round Culvert L= 35.0' RCP, square edge headwall, Ke= 0.500 Inlet / Outlet Invert= 892.00' / 892.35' S= -0.0100 '/' Cc= 0.900 n= 0.012, Flow Area= 0.79 sf #2 Device 1 896.35'33.0" Round Culvert L= 69.0' RCP, end-section conforming to fill, Ke= 0.500 Inlet / Outlet Invert= 896.35' / 896.01' S= 0.0049 '/' Cc= 0.900 n= 0.012 Concrete pipe, finished, Flow Area= 5.94 sf Primary OutFlow Max=8.68 cfs @ 12.60 hrs HW=898.12' TW=890.79' (Dynamic Tailwater) 1=Culvert (Inlet Controls 8.68 cfs @ 11.05 fps) 2=Culvert (Passes 8.68 cfs of 14.23 cfs potential flow) MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 222HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Pond 65P: Fresh MDW Inflow Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)34 32 30 28 26 24 22 20 18 16 14 12 10 8 6 4 2 0 Inflow Area=12.140 ac Peak Elev=898.12' Storage=44,673 cf 31.73 cfs 8.68 cfs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 223HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Stage-Area-Storage for Pond 65P: Fresh MDW Elevation (feet) Surface (sq-ft) Storage (cubic-feet) 896.00 18,540 0 896.05 18,661 930 896.10 18,782 1,866 896.15 18,903 2,808 896.20 19,025 3,756 896.25 19,146 4,711 896.30 19,267 5,671 896.35 19,388 6,637 896.40 19,509 7,610 896.45 19,630 8,588 896.50 19,751 9,573 896.55 19,872 10,563 896.60 19,994 11,560 896.65 20,115 12,563 896.70 20,236 13,572 896.75 20,357 14,586 896.80 20,478 15,607 896.85 20,599 16,634 896.90 20,720 17,667 896.95 20,841 18,706 897.00 20,963 19,751 897.05 21,084 20,802 897.10 21,205 21,860 897.15 21,326 22,923 897.20 21,447 23,992 897.25 21,568 25,068 897.30 21,689 26,149 897.35 21,810 27,237 897.40 21,931 28,330 897.45 22,053 29,430 897.50 22,174 30,535 897.55 22,295 31,647 897.60 22,416 32,765 897.65 22,537 33,889 897.70 22,658 35,019 897.75 22,779 36,154 897.80 22,900 37,296 897.85 23,022 38,445 897.90 23,143 39,599 897.95 23,264 40,759 898.00 23,385 41,925 898.05 23,506 43,097 898.10 23,627 44,276 898.15 23,748 45,460 898.20 23,870 46,650 898.25 23,991 47,847 898.30 24,112 49,050 898.35 24,233 50,258 898.40 24,354 51,473 898.45 24,475 52,694 898.50 24,596 53,920 898.55 24,717 55,153 Elevation (feet) Surface (sq-ft) Storage (cubic-feet) 898.60 24,839 56,392 898.65 24,960 57,637 898.70 25,081 58,888 898.75 25,202 60,145 898.80 25,323 61,408 898.85 25,444 62,677 898.90 25,565 63,953 898.95 25,686 65,234 899.00 25,808 66,521 899.05 25,929 67,815 899.10 26,050 69,114 899.15 26,171 70,420 899.20 26,292 71,731 899.25 26,413 73,049 899.30 26,534 74,373 899.35 26,655 75,702 899.40 26,776 77,038 899.45 26,898 78,380 899.50 27,019 79,728 899.55 27,140 81,082 899.60 27,261 82,442 899.65 27,382 83,808 899.70 27,503 85,180 899.75 27,624 86,558 899.80 27,745 87,942 899.85 27,867 89,333 899.90 27,988 90,729 899.95 28,109 92,132 900.00 28,230 93,540 900.05 28,385 94,955 900.10 28,540 96,379 900.15 28,695 97,809 900.20 28,850 99,248 900.25 29,005 100,694 900.30 29,160 102,148 900.35 29,315 103,610 900.40 29,470 105,080 900.45 29,625 106,557 900.50 29,780 108,043 900.55 29,935 109,535 900.60 30,090 111,036 900.65 30,245 112,544 900.70 30,400 114,061 900.75 30,555 115,584 900.80 30,710 117,116 900.85 30,865 118,655 900.90 31,020 120,202 900.95 31,175 121,757 901.00 31,330 123,320 MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 224HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Pond 68P: East MNDOT M10 Wetland Inflow Area = 97.033 ac, 1.21% Impervious, Inflow Depth = 2.12" for 10y 24hr event Inflow = 53.71 cfs @ 12.15 hrs, Volume= 17.127 af Outflow = 2.65 cfs @ 24.54 hrs, Volume= 13.794 af, Atten= 95%, Lag= 743.5 min Primary = 2.65 cfs @ 24.54 hrs, Volume= 13.794 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 892.43' @ 24.54 hrs Surf.Area= 354,721 sf Storage= 553,643 cf Plug-Flow detention time= 2,815.1 min calculated for 13.794 af (81% of inflow) Center-of-Mass det. time= 2,490.9 min ( 3,719.7 - 1,228.8 ) Volume Invert Avail.Storage Storage Description #1 890.00' 1,574,445 cf Custom Stage Data (Prismatic) Listed below (Recalc) Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 890.00 68,660 0 0 891.00 198,790 133,725 133,725 892.00 340,250 269,520 403,245 895.00 440,550 1,171,200 1,574,445 Device Routing Invert Outlet Devices #1 Primary 890.30'18.0" Round Culvert L= 155.0' RCP, square edge headwall, Ke= 0.500 Inlet / Outlet Invert= 890.30' / 889.53' S= 0.0050 '/' Cc= 0.900 n= 0.013 Concrete pipe, straight & clean, Flow Area= 1.77 sf #2 Device 1 891.00'10.0" Vert. Orifice/Grate C= 0.600 #3 Device 2 890.50'18.0" Round Culvert L= 40.0' RCP, end-section conforming to fill, Ke= 0.500 Inlet / Outlet Invert= 890.30' / 890.50' S= -0.0050 '/' Cc= 0.900 n= 0.013 Concrete pipe, straight & clean, Flow Area= 1.77 sf Primary OutFlow Max=2.65 cfs @ 24.54 hrs HW=892.43' (Free Discharge) 1=Culvert (Passes 2.65 cfs of 8.07 cfs potential flow) 2=Orifice/Grate (Orifice Controls 2.65 cfs @ 4.85 fps) 3=Culvert (Passes 2.65 cfs of 7.55 cfs potential flow) MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 225HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Pond 68P: East MNDOT M10 Wetland Inflow Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)60 55 50 45 40 35 30 25 20 15 10 5 0 Inflow Area=97.033 ac Peak Elev=892.43' Storage=553,643 cf 53.71 cfs 2.65 cfs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 226HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Stage-Area-Storage for Pond 68P: East MNDOT M10 Wetland Elevation (feet) Surface (sq-ft) Storage (cubic-feet) 890.00 68,660 0 890.05 75,166 3,596 890.10 81,673 7,517 890.15 88,179 11,763 890.20 94,686 16,335 890.25 101,193 21,232 890.30 107,699 26,454 890.35 114,206 32,001 890.40 120,712 37,874 890.45 127,219 44,073 890.50 133,725 50,596 890.55 140,231 57,445 890.60 146,738 64,619 890.65 153,244 72,119 890.70 159,751 79,944 890.75 166,258 88,094 890.80 172,764 96,570 890.85 179,271 105,370 890.90 185,777 114,497 890.95 192,284 123,948 891.00 198,790 133,725 891.05 205,863 143,841 891.10 212,936 154,311 891.15 220,009 165,135 891.20 227,082 176,312 891.25 234,155 187,843 891.30 241,228 199,728 891.35 248,301 211,966 891.40 255,374 224,558 891.45 262,447 237,503 891.50 269,520 250,803 891.55 276,593 264,455 891.60 283,666 278,462 891.65 290,739 292,822 891.70 297,812 307,536 891.75 304,885 322,603 891.80 311,958 338,024 891.85 319,031 353,799 891.90 326,104 369,927 891.95 333,177 386,409 892.00 340,250 403,245 892.05 341,922 420,299 892.10 343,593 437,437 892.15 345,265 454,659 892.20 346,937 471,964 892.25 348,608 489,352 892.30 350,280 506,824 892.35 351,952 524,380 892.40 353,623 542,020 892.45 355,295 559,743 892.50 356,967 577,549 892.55 358,638 595,439 Elevation (feet) Surface (sq-ft) Storage (cubic-feet) 892.60 360,310 613,413 892.65 361,982 631,470 892.70 363,653 649,611 892.75 365,325 667,836 892.80 366,997 686,144 892.85 368,668 704,535 892.90 370,340 723,010 892.95 372,012 741,569 893.00 373,683 760,212 893.05 375,355 778,938 893.10 377,027 797,747 893.15 378,698 816,640 893.20 380,370 835,617 893.25 382,042 854,677 893.30 383,713 873,821 893.35 385,385 893,049 893.40 387,057 912,360 893.45 388,728 931,754 893.50 390,400 951,233 893.55 392,072 970,794 893.60 393,743 990,440 893.65 395,415 1,010,169 893.70 397,087 1,029,981 893.75 398,758 1,049,877 893.80 400,430 1,069,857 893.85 402,102 1,089,920 893.90 403,773 1,110,067 893.95 405,445 1,130,298 894.00 407,117 1,150,612 894.05 408,788 1,171,009 894.10 410,460 1,191,491 894.15 412,132 1,212,055 894.20 413,803 1,232,704 894.25 415,475 1,253,436 894.30 417,147 1,274,251 894.35 418,818 1,295,150 894.40 420,490 1,316,133 894.45 422,162 1,337,199 894.50 423,833 1,358,349 894.55 425,505 1,379,583 894.60 427,177 1,400,900 894.65 428,848 1,422,300 894.70 430,520 1,443,785 894.75 432,192 1,465,352 894.80 433,863 1,487,004 894.85 435,535 1,508,739 894.90 437,207 1,530,557 894.95 438,878 1,552,459 895.00 440,550 1,574,445 MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 227HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Time span=0.00-360.00 hrs, dt=0.01 hrs, 36001 points Runoff by SCS TR-20 method, UH=SCS, Weighted-Q Reach routing by Dyn-Stor-Ind method - Pond routing by Dyn-Stor-Ind method Runoff Area=27,760 sf 0.00% Impervious Runoff Depth=2.69"Subcatchment 0S: To Powers - North Flow Length=212' Tc=6.5 min CN=58 Runoff=2.73 cfs 0.143 af Runoff Area=29,120 sf 0.00% Impervious Runoff Depth=3.67"Subcatchment 00S: To Powers - South Flow Length=198' Tc=7.2 min CN=WQ Runoff=3.81 cfs 0.205 af Runoff Area=90,310 sf 0.00% Impervious Runoff Depth=2.69"Subcatchment 1S: To Lyman - NE Flow Length=122' Slope=0.1600 '/' Tc=5.0 min CN=58 Runoff=9.69 cfs 0.465 af Runoff Area=687,520 sf 4.63% Impervious Runoff Depth=5.02"Subcatchment 2S: Wetland 2 Flow Length=1,087' Tc=26.4 min CN=WQ Runoff=67.59 cfs 6.603 af Runoff Area=560,145 sf 0.00% Impervious Runoff Depth=4.86"Subcatchment 3S: Wetland 1 Flow Length=585' Tc=16.8 min CN=WQ Runoff=66.91 cfs 5.206 af Runoff Area=35,675 sf 0.00% Impervious Runoff Depth=4.85"Subcatchment 4oS: From Powers Flow Length=320' Tc=6.0 min CN=78 Runoff=6.69 cfs 0.331 af Runoff Area=232,825 sf 0.00% Impervious Runoff Depth=4.79"Subcatchment 4S: Wetland 8 Flow Length=472' Tc=18.3 min CN=WQ Runoff=26.69 cfs 2.133 af Runoff Area=4,669 sf 0.00% Impervious Runoff Depth=2.69"Subcatchment 16oS: East Offsite Tc=10.0 min CN=58 Runoff=0.39 cfs 0.024 af Runoff Area=9.400 ac 0.00% Impervious Runoff Depth=5.88"Subcatchment 61S: Powers (from SRF) Tc=9.0 min CN=87 Runoff=77.82 cfs 4.603 af Runoff Area=4.200 ac 0.00% Impervious Runoff Depth=5.19"Subcatchment 62S: NE Ramp (from SRF) Tc=8.0 min CN=81 Runoff=32.86 cfs 1.816 af Runoff Area=8.200 ac 0.00% Impervious Runoff Depth=5.88"Subcatchment 63S: TH 212 (from SRF) Tc=12.0 min CN=87 Runoff=59.82 cfs 4.016 af Runoff Area=7.800 ac 0.00% Impervious Runoff Depth=4.74"Subcatchment 64S: Englewood (from SRF) Tc=10.0 min CN=77 Runoff=51.54 cfs 3.078 af Runoff Area=6.400 ac 0.00% Impervious Runoff Depth=5.42"Subcatchment 65S: LYMLP (from SRF) Tc=15.0 min CN=83 Runoff=39.40 cfs 2.888 af Runoff Area=1.900 ac 0.00% Impervious Runoff Depth=6.70"Subcatchment 66S: N54 (from SRF) Tc=7.6 min CN=94 Runoff=18.18 cfs 1.060 af Runoff Area=0.440 ac 100.00% Impervious Runoff Depth=7.41"Subcatchment 67-1S: Fresh MDW Tc=7.0 min CN=100 Runoff=4.43 cfs 0.272 af Runoff Area=1.100 ac 0.00% Impervious Runoff Depth=4.07"Subcatchment 67-2S: Fresh MDW Subcatch Tc=7.0 min CN=71 Runoff=7.21 cfs 0.373 af MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 228HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Runoff Area=2.300 ac 0.00% Impervious Runoff Depth=0.00"Subcatchment 67-3S: Fresh MDW Subcatch Tc=83.0 min CN=10 Runoff=0.00 cfs 0.000 af Runoff Area=17.000 ac 0.00% Impervious Runoff Depth=4.40"Subcatchment 68S: M10 Tc=10.0 min CN=74 Runoff=104.71 cfs 6.236 af Inflow=128.91 cfs 14.655 afReach 1R: Lake Susan Drainage Outflow=128.91 cfs 14.655 af Avg. Flow Depth=2.38' Max Vel=4.25 fps Inflow=156.80 cfs 19.259 afReach 61R: NERDITCH n=0.035 L=545.0' S=0.0055 '/' Capacity=737.08 cfs Outflow=153.50 cfs 19.259 af Avg. Flow Depth=2.00' Max Vel=6.29 fps Inflow=32.86 cfs 1.816 afReach 62R: L42 24.0" Round Pipe n=0.012 L=200.0' S=0.0050 '/' Capacity=17.33 cfs Outflow=18.89 cfs 1.816 af Peak Elev=909.80' Storage=13,562 cf Inflow=67.59 cfs 6.603 afPond 2P: Wetland 2 Outflow=65.77 cfs 6.603 af Peak Elev=907.49' Storage=81,620 cf Inflow=117.90 cfs 11.809 afPond 3P: Basin 3 (Wetland 1) Outflow=110.55 cfs 11.355 af Peak Elev=900.81' Storage=17,797 cf Inflow=133.07 cfs 13.819 afPond 4P: Powers Culvert 54.0" Round Culvert n=0.013 L=191.0' S=0.0062 '/' Outflow=124.40 cfs 13.819 af Peak Elev=896.14' Storage=658,457 cf Inflow=279.90 cfs 28.168 afPond 61P: Englewood Pond Outflow=65.18 cfs 28.101 af Peak Elev=900.32' Storage=102,625 cf Inflow=60.84 cfs 4.593 afPond 65P: Fresh MDW Outflow=10.33 cfs 4.439 af Peak Elev=894.16' Storage=1,217,211 cf Inflow=131.13 cfs 38.775 afPond 68P: East MNDOT M10 Wetland Outflow=4.35 cfs 35.364 af Total Runoff Area = 97.033 ac Runoff Volume = 39.451 af Average Runoff Depth = 4.88" 98.79% Pervious = 95.862 ac 1.21% Impervious = 1.170 ac MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 229HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 0S: To Powers - North Runoff = 2.73 cfs @ 12.10 hrs, Volume= 0.143 af, Depth= 2.69" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Area (sf) CN Description 27,760 58 Meadow, non-grazed, HSG B 27,760 58 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 5.6 75 0.0530 0.22 Sheet Flow, Grass: Short n= 0.150 P2= 2.87" 0.9 137 0.1240 2.46 Shallow Concentrated Flow, Short Grass Pasture Kv= 7.0 fps 6.5 212 Total Subcatchment 0S: To Powers - North Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)3 2 1 0 MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Runoff Area=27,760 sf Runoff Volume=0.143 af Runoff Depth=2.69" Flow Length=212' Tc=6.5 min CN=58 2.73 cfs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 230HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 00S: To Powers - South Runoff = 3.81 cfs @ 12.10 hrs, Volume= 0.205 af, Depth= 3.67" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Area (sf) CN Description 14,560 55 Woods, Good, HSG B 14,560 79 Pasture/grassland/range, Poor, HSG B 29,120 Weighted Average 29,120 67 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 4.3 38 0.0200 0.15 Sheet Flow, Range n= 0.130 P2= 2.87" 2.9 160 0.0170 0.91 Shallow Concentrated Flow, Short Grass Pasture Kv= 7.0 fps 7.2 198 Total Subcatchment 00S: To Powers - South Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)4 3 2 1 0 MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Runoff Area=29,120 sf Runoff Volume=0.205 af Runoff Depth=3.67" Flow Length=198' Tc=7.2 min CN=WQ 3.81 cfs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 231HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 1S: To Lyman - NE Runoff = 9.69 cfs @ 12.08 hrs, Volume= 0.465 af, Depth= 2.69" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Area (sf) CN Description 90,310 58 Meadow, non-grazed, HSG B 90,310 58 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 2.6 50 0.1600 0.32 Sheet Flow, Grass: Short n= 0.150 P2= 2.87" 0.4 72 0.1600 2.80 Shallow Concentrated Flow, Short Grass Pasture Kv= 7.0 fps 2.0 Direct Entry, Make up to 5 Minutes 5.0 122 Total Subcatchment 1S: To Lyman - NE Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)10 9 8 7 6 5 4 3 2 1 0 MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Runoff Area=90,310 sf Runoff Volume=0.465 af Runoff Depth=2.69" Flow Length=122' Slope=0.1600 '/' Tc=5.0 min CN=58 9.69 cfs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 232HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 2S: Wetland 2 Runoff = 67.59 cfs @ 12.35 hrs, Volume= 6.603 af, Depth= 5.02" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Area (sf) CN Description 31,810 98 Water Surface, HSG D * 70,790 96 Wetland 79,915 79 Pasture/grassland/range, Poor, HSG B * 86,270 61 Grasses, Good, HSG B 418,735 79 Pasture/grassland/range, Poor, HSG B 687,520 Weighted Average 655,710 78 95.37% Pervious Area 31,810 98 4.63% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 9.2 135 0.0370 0.25 Sheet Flow, Range n= 0.130 P2= 2.87" 0.4 60 0.1310 2.53 Shallow Concentrated Flow, Short Grass Pasture Kv= 7.0 fps 0.1 46 0.6500 5.64 Shallow Concentrated Flow, Short Grass Pasture Kv= 7.0 fps 1.4 90 0.0220 1.04 Shallow Concentrated Flow, Short Grass Pasture Kv= 7.0 fps 0.9 52 0.0190 0.96 Shallow Concentrated Flow, Short Grass Pasture Kv= 7.0 fps 1.3 94 0.0320 1.25 Shallow Concentrated Flow, Short Grass Pasture Kv= 7.0 fps 2.3 210 0.0480 1.53 Shallow Concentrated Flow, Short Grass Pasture Kv= 7.0 fps 0.4 50 0.0200 2.12 Shallow Concentrated Flow, Wetland Grassed Waterway Kv= 15.0 fps 10.4 350 0.0014 0.56 Shallow Concentrated Flow, Wetland Grassed Waterway Kv= 15.0 fps 26.4 1,087 Total MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 233HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Subcatchment 2S: Wetland 2 Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)75 70 65 60 55 50 45 40 35 30 25 20 15 10 5 0 MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Runoff Area=687,520 sf Runoff Volume=6.603 af Runoff Depth=5.02" Flow Length=1,087' Tc=26.4 min CN=WQ 67.59 cfs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 234HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 3S: Wetland 1 Runoff = 66.91 cfs @ 12.23 hrs, Volume= 5.206 af, Depth= 4.86" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Area (sf) CN Description * 56,025 96 Wetland, HSG D 55,045 79 Pasture/grassland/range, Poor, HSG B 62,080 55 Woods, Good, HSG B 349,085 79 Pasture/grassland/range, Poor, HSG B 37,910 77 Woods, Good, HSG D 560,145 Weighted Average 560,145 78 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 9.2 100 0.0200 0.18 Sheet Flow, Range n= 0.130 P2= 2.87" 7.2 438 0.0210 1.01 Shallow Concentrated Flow, Short Grass Pasture Kv= 7.0 fps 0.4 47 0.0150 1.84 Shallow Concentrated Flow, Wetland Grassed Waterway Kv= 15.0 fps 16.8 585 Total Subcatchment 3S: Wetland 1 Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)70 65 60 55 50 45 40 35 30 25 20 15 10 5 0 MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Runoff Area=560,145 sf Runoff Volume=5.206 af Runoff Depth=4.86" Flow Length=585' Tc=16.8 min CN=WQ 66.91 cfs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 235HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 4oS: From Powers Runoff = 6.69 cfs @ 12.09 hrs, Volume= 0.331 af, Depth= 4.85" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Area (sf) CN Description 35,675 78 Meadow, non-grazed, HSG D 35,675 78 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 3.5 75 0.1670 0.36 Sheet Flow, Grass: Short n= 0.150 P2= 2.87" 2.5 245 0.0550 1.64 Shallow Concentrated Flow, Short Grass Pasture Kv= 7.0 fps 6.0 320 Total Subcatchment 4oS: From Powers Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)7 6 5 4 3 2 1 0 MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Runoff Area=35,675 sf Runoff Volume=0.331 af Runoff Depth=4.85" Flow Length=320' Tc=6.0 min CN=78 6.69 cfs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 236HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 4S: Wetland 8 Runoff = 26.69 cfs @ 12.24 hrs, Volume= 2.133 af, Depth= 4.79" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Area (sf) CN Description * 2,815 96 Wetland, HSG D 15,470 55 Woods, Good, HSG B 150,205 79 Pasture/grassland/range, Poor, HSG B 37,925 79 Pasture/grassland/range, Poor, HSG B 26,410 77 Woods, Good, HSG D 232,825 Weighted Average 232,825 77 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 10.4 50 0.0350 0.08 Sheet Flow, Woods: Light underbrush n= 0.400 P2= 2.87" 4.2 50 0.0350 0.20 Sheet Flow, Range n= 0.130 P2= 2.87" 3.5 325 0.0490 1.55 Shallow Concentrated Flow, Short Grass Pasture Kv= 7.0 fps 0.2 47 0.0600 3.67 Shallow Concentrated Flow, Wetland Grassed Waterway Kv= 15.0 fps 18.3 472 Total MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 237HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Subcatchment 4S: Wetland 8 Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)28 26 24 22 20 18 16 14 12 10 8 6 4 2 0 MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Runoff Area=232,825 sf Runoff Volume=2.133 af Runoff Depth=4.79" Flow Length=472' Tc=18.3 min CN=WQ 26.69 cfs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 238HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 16oS: East Offsite Runoff = 0.39 cfs @ 12.14 hrs, Volume= 0.024 af, Depth= 2.69" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Area (sf) CN Description 4,669 58 Meadow, non-grazed, HSG B 4,669 58 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 10.0 Direct Entry, Subcatchment 16oS: East Offsite Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.42 0.4 0.38 0.36 0.34 0.32 0.3 0.28 0.26 0.24 0.22 0.2 0.18 0.16 0.14 0.12 0.1 0.08 0.06 0.04 0.02 0 MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Runoff Area=4,669 sf Runoff Volume=0.024 af Runoff Depth=2.69" Tc=10.0 min CN=58 0.39 cfs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 239HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 61S: Powers (from SRF) Runoff = 77.82 cfs @ 12.12 hrs, Volume= 4.603 af, Depth= 5.88" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Area (ac) CN Description * 9.400 87 Weighted 9.400 87 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 9.0 Direct Entry, Subcatchment 61S: Powers (from SRF) Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)85 80 75 70 65 60 55 50 45 40 35 30 25 20 15 10 5 0 MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Runoff Area=9.400 ac Runoff Volume=4.603 af Runoff Depth=5.88" Tc=9.0 min CN=87 77.82 cfs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 240HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 62S: NE Ramp (from SRF) Runoff = 32.86 cfs @ 12.11 hrs, Volume= 1.816 af, Depth= 5.19" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Area (ac) CN Description * 4.200 81 Weighted 4.200 81 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 8.0 Direct Entry, Subcatchment 62S: NE Ramp (from SRF) Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)36 34 32 30 28 26 24 22 20 18 16 14 12 10 8 6 4 2 0 MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Runoff Area=4.200 ac Runoff Volume=1.816 af Runoff Depth=5.19" Tc=8.0 min CN=81 32.86 cfs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 241HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 63S: TH 212 (from SRF) Runoff = 59.82 cfs @ 12.16 hrs, Volume= 4.016 af, Depth= 5.88" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Area (ac) CN Description * 8.200 87 Weighted 8.200 87 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 12.0 Direct Entry, Subcatchment 63S: TH 212 (from SRF) Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)65 60 55 50 45 40 35 30 25 20 15 10 5 0 MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Runoff Area=8.200 ac Runoff Volume=4.016 af Runoff Depth=5.88" Tc=12.0 min CN=87 59.82 cfs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 242HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 64S: Englewood (from SRF) Runoff = 51.54 cfs @ 12.14 hrs, Volume= 3.078 af, Depth= 4.74" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Area (ac) CN Description * 7.800 77 Weighted 7.800 77 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 10.0 Direct Entry, Subcatchment 64S: Englewood (from SRF) Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)55 50 45 40 35 30 25 20 15 10 5 0 MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Runoff Area=7.800 ac Runoff Volume=3.078 af Runoff Depth=4.74" Tc=10.0 min CN=77 51.54 cfs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 243HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 65S: LYMLP (from SRF) Runoff = 39.40 cfs @ 12.20 hrs, Volume= 2.888 af, Depth= 5.42" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Area (ac) CN Description * 6.400 83 Weighted 6.400 83 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 15.0 Direct Entry, Subcatchment 65S: LYMLP (from SRF) Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)44 42 40 38 36 34 32 30 28 26 24 22 20 18 16 14 12 10 8 6 4 2 0 MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Runoff Area=6.400 ac Runoff Volume=2.888 af Runoff Depth=5.42" Tc=15.0 min CN=83 39.40 cfs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 244HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 66S: N54 (from SRF) Runoff = 18.18 cfs @ 12.10 hrs, Volume= 1.060 af, Depth= 6.70" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Area (ac) CN Description * 1.900 94 Weighted 1.900 94 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 7.6 Direct Entry, Subcatchment 66S: N54 (from SRF) Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Runoff Area=1.900 ac Runoff Volume=1.060 af Runoff Depth=6.70" Tc=7.6 min CN=94 18.18 cfs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 245HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 67-1S: Fresh MDW Subcatch 1 (from SRF) Runoff = 4.43 cfs @ 12.09 hrs, Volume= 0.272 af, Depth= 7.41" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Area (ac) CN Description * 0.440 100 Weighted 0.440 100 100.00% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 7.0 Direct Entry, Subcatchment 67-1S: Fresh MDW Subcatch 1 (from SRF) Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)4 3 2 1 0 MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Runoff Area=0.440 ac Runoff Volume=0.272 af Runoff Depth=7.41" Tc=7.0 min CN=100 4.43 cfs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 246HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 67-2S: Fresh MDW Subcatch 2 (from SRF) Runoff = 7.21 cfs @ 12.10 hrs, Volume= 0.373 af, Depth= 4.07" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Area (ac) CN Description * 1.100 71 Weighted 1.100 71 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 7.0 Direct Entry, Subcatchment 67-2S: Fresh MDW Subcatch 2 (from SRF) Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)8 7 6 5 4 3 2 1 0 MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Runoff Area=1.100 ac Runoff Volume=0.373 af Runoff Depth=4.07" Tc=7.0 min CN=71 7.21 cfs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 247HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 67-3S: Fresh MDW Subcatch 3 (from SRF) [45] Hint: Runoff=Zero Runoff = 0.00 cfs @ 0.00 hrs, Volume= 0.000 af, Depth= 0.00" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Area (ac) CN Description * 2.300 10 Weighted 2.300 10 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 83.0 Direct Entry, Subcatchment 67-3S: Fresh MDW Subcatch 3 (from SRF) Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)1 0 MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Runoff Area=2.300 ac Runoff Volume=0.000 af Runoff Depth=0.00" Tc=83.0 min CN=10 0.00 cfs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 248HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 68S: M10 Runoff = 104.71 cfs @ 12.14 hrs, Volume= 6.236 af, Depth= 4.40" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Area (ac) CN Description * 17.000 74 Weighted 17.000 74 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 10.0 Direct Entry, Subcatchment 68S: M10 Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)115 110 105 100 95 90 85 80 75 70 65 60 55 50 45 40 35 30 25 20 15 10 5 0 MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Runoff Area=17.000 ac Runoff Volume=6.236 af Runoff Depth=4.40" Tc=10.0 min CN=74 104.71 cfs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 249HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Reach 1R: Lake Susan Drainage [40] Hint: Not Described (Outflow=Inflow) Inflow Area = 38.293 ac, 1.91% Impervious, Inflow Depth = 4.59" for 100y 24hr event Inflow = 128.91 cfs @ 12.47 hrs, Volume= 14.655 af Outflow = 128.91 cfs @ 12.47 hrs, Volume= 14.655 af, Atten= 0%, Lag= 0.0 min Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Reach 1R: Lake Susan Drainage Inflow Outflow Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)140 130 120 110 100 90 80 70 60 50 40 30 20 10 0 Inflow Area=38.293 ac 128.91 cfs 128.91 cfs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 250HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Reach 61R: NERDITCH Inflow Area = 47.693 ac, 1.53% Impervious, Inflow Depth = 4.85" for 100y 24hr event Inflow = 156.80 cfs @ 12.14 hrs, Volume= 19.259 af Outflow = 153.50 cfs @ 12.17 hrs, Volume= 19.259 af, Atten= 2%, Lag= 2.1 min Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Max. Velocity= 4.25 fps, Min. Travel Time= 2.1 min Avg. Velocity = 0.47 fps, Avg. Travel Time= 19.2 min Peak Storage= 19,695 cf @ 12.17 hrs Average Depth at Peak Storage= 2.38' Bank-Full Depth= 5.00' Flow Area= 115.0 sf, Capacity= 737.08 cfs 8.00' x 5.00' deep channel, n= 0.035 Side Slope Z-value= 3.0 '/' Top Width= 38.00' Length= 545.0' Slope= 0.0055 '/' Inlet Invert= 895.00', Outlet Invert= 892.00' ‡ Reach 61R: NERDITCH Inflow Outflow Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)170 160 150 140 130 120 110 100 90 80 70 60 50 40 30 20 10 0 Inflow Area=47.693 ac Avg. Flow Depth=2.38' Max Vel=4.25 fps n=0.035 L=545.0' S=0.0055 '/' Capacity=737.08 cfs 156.80 cfs 153.50 cfs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 251HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Stage-Area-Storage for Reach 61R: NERDITCH Elevation (feet) End-Area (sq-ft) Storage (cubic-feet) 895.00 0.0 0 895.05 0.4 222 895.10 0.8 452 895.15 1.3 691 895.20 1.7 937 895.25 2.2 1,192 895.30 2.7 1,455 895.35 3.2 1,726 895.40 3.7 2,006 895.45 4.2 2,293 895.50 4.8 2,589 895.55 5.3 2,893 895.60 5.9 3,205 895.65 6.5 3,525 895.70 7.1 3,853 895.75 7.7 4,190 895.80 8.3 4,534 895.85 9.0 4,887 895.90 9.6 5,248 895.95 10.3 5,618 896.00 11.0 5,995 896.05 11.7 6,381 896.10 12.4 6,774 896.15 13.2 7,176 896.20 13.9 7,586 896.25 14.7 8,005 896.30 15.5 8,431 896.35 16.3 8,866 896.40 17.1 9,309 896.45 17.9 9,760 896.50 18.8 10,219 896.55 19.6 10,686 896.60 20.5 11,162 896.65 21.4 11,645 896.70 22.3 12,137 896.75 23.2 12,637 896.80 24.1 13,145 896.85 25.1 13,662 896.90 26.0 14,186 896.95 27.0 14,719 897.00 28.0 15,260 897.05 29.0 15,809 897.10 30.0 16,366 897.15 31.1 16,932 897.20 32.1 17,505 897.25 33.2 18,087 897.30 34.3 18,677 897.35 35.4 19,275 897.40 36.5 19,882 897.45 37.6 20,496 897.50 38.8 21,119 897.55 39.9 21,750 Elevation (feet) End-Area (sq-ft) Storage (cubic-feet) 897.60 41.1 22,389 897.65 42.3 23,036 897.70 43.5 23,691 897.75 44.7 24,355 897.80 45.9 25,026 897.85 47.2 25,706 897.90 48.4 26,394 897.95 49.7 27,091 898.00 51.0 27,795 898.05 52.3 28,508 898.10 53.6 29,228 898.15 55.0 29,957 898.20 56.3 30,694 898.25 57.7 31,440 898.30 59.1 32,193 898.35 60.5 32,955 898.40 61.9 33,725 898.45 63.3 34,503 898.50 64.8 35,289 898.55 66.2 36,083 898.60 67.7 36,886 898.65 69.2 37,696 898.70 70.7 38,515 898.75 72.2 39,342 898.80 73.7 40,177 898.85 75.3 41,021 898.90 76.8 41,872 898.95 78.4 42,732 899.00 80.0 43,600 899.05 81.6 44,476 899.10 83.2 45,360 899.15 84.9 46,253 899.20 86.5 47,153 899.25 88.2 48,062 899.30 89.9 48,979 899.35 91.6 49,904 899.40 93.3 50,838 899.45 95.0 51,779 899.50 96.8 52,729 899.55 98.5 53,687 899.60 100.3 54,653 899.65 102.1 55,627 899.70 103.9 56,609 899.75 105.7 57,600 899.80 107.5 58,598 899.85 109.4 59,605 899.90 111.2 60,620 899.95 113.1 61,644 900.00 115.0 62,675 MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 252HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Reach 62R: L42 [52] Hint: Inlet/Outlet conditions not evaluated [55] Hint: Peak inflow is 190% of Manning's capacity [76] Warning: Detained 0.147 af (Pond w/culvert advised) Inflow Area = 4.200 ac, 0.00% Impervious, Inflow Depth = 5.19" for 100y 24hr event Inflow = 32.86 cfs @ 12.11 hrs, Volume= 1.816 af Outflow = 18.89 cfs @ 12.51 hrs, Volume= 1.816 af, Atten= 43%, Lag= 23.9 min Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Max. Velocity= 6.29 fps, Min. Travel Time= 0.5 min Avg. Velocity = 2.39 fps, Avg. Travel Time= 1.4 min Peak Storage= 628 cf @ 12.04 hrs Average Depth at Peak Storage= 2.00' Bank-Full Depth= 2.00' Flow Area= 3.1 sf, Capacity= 17.33 cfs 24.0" Round Pipe n= 0.012 Length= 200.0' Slope= 0.0050 '/' Inlet Invert= 893.00', Outlet Invert= 892.00' MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 253HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Reach 62R: L42 Inflow Outflow Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)36 34 32 30 28 26 24 22 20 18 16 14 12 10 8 6 4 2 0 Inflow Area=4.200 ac Avg. Flow Depth=2.00' Max Vel=6.29 fps 24.0" Round Pipe n=0.012 L=200.0' S=0.0050 '/' Capacity=17.33 cfs 32.86 cfs 18.89 cfs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 254HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Stage-Area-Storage for Reach 62R: L42 Elevation (feet) End-Area (sq-ft) Storage (cubic-feet) 893.00 0.0 0 893.02 0.0 1 893.04 0.0 3 893.06 0.0 5 893.08 0.0 8 893.10 0.1 12 893.12 0.1 15 893.14 0.1 19 893.16 0.1 24 893.18 0.1 28 893.20 0.2 33 893.22 0.2 38 893.24 0.2 43 893.26 0.2 48 893.28 0.3 53 893.30 0.3 59 893.32 0.3 65 893.34 0.4 71 893.36 0.4 77 893.38 0.4 83 893.40 0.4 89 893.42 0.5 96 893.44 0.5 102 893.46 0.5 109 893.48 0.6 116 893.50 0.6 123 893.52 0.6 130 893.54 0.7 137 893.56 0.7 144 893.58 0.8 151 893.60 0.8 159 893.62 0.8 166 893.64 0.9 173 893.66 0.9 181 893.68 0.9 188 893.70 1.0 196 893.72 1.0 204 893.74 1.1 211 893.76 1.1 219 893.78 1.1 227 893.80 1.2 235 893.82 1.2 243 893.84 1.3 250 893.86 1.3 258 893.88 1.3 266 893.90 1.4 274 893.92 1.4 282 893.94 1.5 290 893.96 1.5 298 893.98 1.5 306 894.00 1.6 314 894.02 1.6 322 Elevation (feet) End-Area (sq-ft) Storage (cubic-feet) 894.04 1.7 330 894.06 1.7 338 894.08 1.7 346 894.10 1.8 354 894.12 1.8 362 894.14 1.8 370 894.16 1.9 378 894.18 1.9 386 894.20 2.0 394 894.22 2.0 401 894.24 2.0 409 894.26 2.1 417 894.28 2.1 425 894.30 2.2 432 894.32 2.2 440 894.34 2.2 447 894.36 2.3 455 894.38 2.3 462 894.40 2.3 470 894.42 2.4 477 894.44 2.4 484 894.46 2.5 491 894.48 2.5 499 894.50 2.5 505 894.52 2.6 512 894.54 2.6 519 894.56 2.6 526 894.58 2.7 532 894.60 2.7 539 894.62 2.7 545 894.64 2.8 551 894.66 2.8 557 894.68 2.8 563 894.70 2.8 569 894.72 2.9 575 894.74 2.9 580 894.76 2.9 586 894.78 3.0 591 894.80 3.0 596 894.82 3.0 600 894.84 3.0 605 894.86 3.0 609 894.88 3.1 613 894.90 3.1 617 894.92 3.1 620 894.94 3.1 623 894.96 3.1 625 894.98 3.1 627 895.00 3.1 628 MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 255HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Pond 2P: Wetland 2 Inflow Area = 15.783 ac, 4.63% Impervious, Inflow Depth = 5.02" for 100y 24hr event Inflow = 67.59 cfs @ 12.35 hrs, Volume= 6.603 af Outflow = 65.77 cfs @ 12.40 hrs, Volume= 6.603 af, Atten= 3%, Lag= 3.3 min Primary = 65.77 cfs @ 12.40 hrs, Volume= 6.603 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 909.80' @ 12.40 hrs Surf.Area= 65,253 sf Storage= 13,562 cf Plug-Flow detention time= 5.2 min calculated for 6.603 af (100% of inflow) Center-of-Mass det. time= 4.9 min ( 793.5 - 788.6 ) Volume Invert Avail.Storage Storage Description #1 909.50' 137,271 cf Custom Stage Data (Prismatic) Listed below (Recalc) Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 909.50 25,770 0 0 910.00 92,020 29,448 29,448 911.00 123,627 107,824 137,271 Device Routing Invert Outlet Devices #1 Primary 909.50'Asymmetrical Weir, C= 3.27 Offset (feet) 0.00 45.00 95.00 196.00 241.00 301.00 Height (feet) 1.50 0.50 0.00 0.00 0.50 1.50 Primary OutFlow Max=65.76 cfs @ 12.40 hrs HW=909.80' TW=907.49' (Dynamic Tailwater) 1=Asymmetrical Weir (Weir Controls 65.76 cfs @ 1.40 fps) MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 256HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Pond 2P: Wetland 2 Inflow Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)75 70 65 60 55 50 45 40 35 30 25 20 15 10 5 0 Inflow Area=15.783 ac Peak Elev=909.80' Storage=13,562 cf 67.59 cfs 65.77 cfs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 257HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Stage-Area-Storage for Pond 2P: Wetland 2 Elevation (feet) Surface (sq-ft) Storage (cubic-feet) 909.50 25,770 0 909.52 28,420 542 909.54 31,070 1,137 909.56 33,720 1,785 909.58 36,370 2,486 909.60 39,020 3,240 909.62 41,670 4,046 909.64 44,320 4,906 909.66 46,970 5,819 909.68 49,620 6,785 909.70 52,270 7,804 909.72 54,920 8,876 909.74 57,570 10,001 909.76 60,220 11,179 909.78 62,870 12,410 909.80 65,520 13,693 909.82 68,170 15,030 909.84 70,820 16,420 909.86 73,470 17,863 909.88 76,120 19,359 909.90 78,770 20,908 909.92 81,420 22,510 909.94 84,070 24,165 909.96 86,720 25,873 909.98 89,370 27,634 910.00 92,020 29,448 910.02 92,652 31,294 910.04 93,284 33,154 910.06 93,916 35,026 910.08 94,549 36,910 910.10 95,181 38,808 910.12 95,813 40,717 910.14 96,445 42,640 910.16 97,077 44,575 910.18 97,709 46,523 910.20 98,341 48,484 910.22 98,974 50,457 910.24 99,606 52,443 910.26 100,238 54,441 910.28 100,870 56,452 910.30 101,502 58,476 910.32 102,134 60,512 910.34 102,766 62,561 910.36 103,399 64,623 910.38 104,031 66,697 910.40 104,663 68,784 910.42 105,295 70,884 910.44 105,927 72,996 910.46 106,559 75,121 910.48 107,191 77,258 910.50 107,824 79,408 910.52 108,456 81,571 Elevation (feet) Surface (sq-ft) Storage (cubic-feet) 910.54 109,088 83,747 910.56 109,720 85,935 910.58 110,352 88,135 910.60 110,984 90,349 910.62 111,616 92,575 910.64 112,248 94,813 910.66 112,881 97,065 910.68 113,513 99,329 910.70 114,145 101,605 910.72 114,777 103,894 910.74 115,409 106,196 910.76 116,041 108,511 910.78 116,673 110,838 910.80 117,306 113,178 910.82 117,938 115,530 910.84 118,570 117,895 910.86 119,202 120,273 910.88 119,834 122,663 910.90 120,466 125,066 910.92 121,098 127,482 910.94 121,731 129,910 910.96 122,363 132,351 910.98 122,995 134,805 911.00 123,627 137,271 MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 258HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Pond 3P: Basin 3 (Wetland 1) Inflow Area = 28.642 ac, 2.55% Impervious, Inflow Depth = 4.95" for 100y 24hr event Inflow = 117.90 cfs @ 12.29 hrs, Volume= 11.809 af Outflow = 110.55 cfs @ 12.39 hrs, Volume= 11.355 af, Atten= 6%, Lag= 5.9 min Primary = 110.55 cfs @ 12.39 hrs, Volume= 11.355 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 907.49' @ 12.39 hrs Surf.Area= 81,942 sf Storage= 81,620 cf Plug-Flow detention time= 59.3 min calculated for 11.355 af (96% of inflow) Center-of-Mass det. time= 40.2 min ( 828.7 - 788.5 ) Volume Invert Avail.Storage Storage Description #1 905.50' 251,588 cf Custom Stage Data (Prismatic) Listed below (Recalc) Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 905.50 0 0 0 906.00 18,685 4,671 4,671 907.00 63,607 41,146 45,817 908.00 100,875 82,241 128,058 909.00 146,184 123,530 251,588 Device Routing Invert Outlet Devices #1 Primary 906.50'Asymmetrical Weir, C= 3.27 Offset (feet) 0.00 28.00 115.00 135.00 155.00 184.00 204.00 Height (feet) 2.50 1.50 0.50 0.00 0.50 1.50 2.50 Primary OutFlow Max=110.53 cfs @ 12.39 hrs HW=907.49' TW=900.73' (Dynamic Tailwater) 1=Asymmetrical Weir (Weir Controls 110.53 cfs @ 1.63 fps) MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 259HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Pond 3P: Basin 3 (Wetland 1) Inflow Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)130 120 110 100 90 80 70 60 50 40 30 20 10 0 Inflow Area=28.642 ac Peak Elev=907.49' Storage=81,620 cf 117.90 cfs 110.55 cfs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 260HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Stage-Area-Storage for Pond 3P: Basin 3 (Wetland 1) Elevation (feet) Surface (sq-ft) Storage (cubic-feet) 905.50 0 0 905.55 1,868 47 905.60 3,737 187 905.65 5,605 420 905.70 7,474 747 905.75 9,343 1,168 905.80 11,211 1,682 905.85 13,080 2,289 905.90 14,948 2,990 905.95 16,817 3,784 906.00 18,685 4,671 906.05 20,931 5,662 906.10 23,177 6,764 906.15 25,423 7,979 906.20 27,669 9,307 906.25 29,916 10,746 906.30 32,162 12,298 906.35 34,408 13,962 906.40 36,654 15,739 906.45 38,900 17,628 906.50 41,146 19,629 906.55 43,392 21,742 906.60 45,638 23,968 906.65 47,884 26,306 906.70 50,130 28,757 906.75 52,377 31,319 906.80 54,623 33,994 906.85 56,869 36,782 906.90 59,115 39,681 906.95 61,361 42,693 907.00 63,607 45,817 907.05 65,470 49,044 907.10 67,334 52,364 907.15 69,197 55,778 907.20 71,061 59,284 907.25 72,924 62,884 907.30 74,787 66,576 907.35 76,651 70,362 907.40 78,514 74,241 907.45 80,378 78,214 907.50 82,241 82,279 907.55 84,104 86,438 907.60 85,968 90,690 907.65 87,831 95,035 907.70 89,695 99,473 907.75 91,558 104,004 907.80 93,421 108,629 907.85 95,285 113,346 907.90 97,148 118,157 907.95 99,012 123,061 908.00 100,875 128,058 908.05 103,140 133,159 Elevation (feet) Surface (sq-ft) Storage (cubic-feet) 908.10 105,406 138,372 908.15 107,671 143,699 908.20 109,937 149,139 908.25 112,202 154,693 908.30 114,468 160,360 908.35 116,733 166,140 908.40 118,999 172,033 908.45 121,264 178,040 908.50 123,530 184,159 908.55 125,795 190,392 908.60 128,060 196,739 908.65 130,326 203,199 908.70 132,591 209,771 908.75 134,857 216,458 908.80 137,122 223,257 908.85 139,388 230,170 908.90 141,653 237,196 908.95 143,919 244,335 909.00 146,184 251,588 MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 261HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Pond 4P: Powers Culvert Inflow Area = 34.806 ac, 2.10% Impervious, Inflow Depth = 4.76" for 100y 24hr event Inflow = 133.07 cfs @ 12.35 hrs, Volume= 13.819 af Outflow = 124.40 cfs @ 12.47 hrs, Volume= 13.819 af, Atten= 7%, Lag= 6.8 min Primary = 124.40 cfs @ 12.47 hrs, Volume= 13.819 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 900.81' @ 12.47 hrs Surf.Area= 15,298 sf Storage= 17,797 cf Plug-Flow detention time= (not calculated: outflow precedes inflow) Center-of-Mass det. time= 1.0 min ( 821.9 - 821.0 ) Volume Invert Avail.Storage Storage Description #1 895.70' 165,537 cf Custom Stage Data (Prismatic) Listed below (Recalc) Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 895.70 1 0 0 896.00 12 2 2 898.00 877 889 891 899.00 2,760 1,819 2,709 900.00 8,250 5,505 8,214 901.00 16,910 12,580 20,794 902.00 26,632 21,771 42,565 903.00 36,506 31,569 74,134 904.00 44,700 40,603 114,737 905.00 56,900 50,800 165,537 Device Routing Invert Outlet Devices #1 Primary 895.71'54.0" Round Culvert L= 191.0' RCP, end-section conforming to fill, Ke= 0.500 Inlet / Outlet Invert= 895.71' / 894.53' S= 0.0062 '/' Cc= 0.900 n= 0.013 Concrete pipe, straight & clean, Flow Area= 15.90 sf Primary OutFlow Max=124.39 cfs @ 12.47 hrs HW=900.81' TW=0.00' (Dynamic Tailwater) 1=Culvert (Barrel Controls 124.39 cfs @ 8.63 fps) MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 262HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Pond 4P: Powers Culvert Inflow Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)140 130 120 110 100 90 80 70 60 50 40 30 20 10 0 Inflow Area=34.806 ac Peak Elev=900.81' Storage=17,797 cf 54.0" Round Culvert n=0.013 L=191.0' S=0.0062 '/' 133.07 cfs 124.40 cfs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 263HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Stage-Area-Storage for Pond 4P: Powers Culvert Elevation (feet) Surface (sq-ft) Storage (cubic-feet) 895.70 1 0 895.80 5 0 895.90 8 1 896.00 12 2 896.10 55 5 896.20 99 13 896.30 142 25 896.40 185 41 896.50 228 62 896.60 272 87 896.70 315 116 896.80 358 150 896.90 401 188 897.00 445 230 897.10 488 277 897.20 531 328 897.30 574 383 897.40 618 443 897.50 661 507 897.60 704 575 897.70 747 647 897.80 791 724 897.90 834 805 898.00 877 891 898.10 1,065 988 898.20 1,254 1,104 898.30 1,442 1,239 898.40 1,630 1,392 898.50 1,819 1,565 898.60 2,007 1,756 898.70 2,195 1,966 898.80 2,383 2,195 898.90 2,572 2,443 899.00 2,760 2,709 899.10 3,309 3,013 899.20 3,858 3,371 899.30 4,407 3,785 899.40 4,956 4,253 899.50 5,505 4,776 899.60 6,054 5,354 899.70 6,603 5,987 899.80 7,152 6,674 899.90 7,701 7,417 900.00 8,250 8,214 900.10 9,116 9,083 900.20 9,982 10,038 900.30 10,848 11,079 900.40 11,714 12,207 900.50 12,580 13,422 900.60 13,446 14,723 900.70 14,312 16,111 900.80 15,178 17,586 Elevation (feet) Surface (sq-ft) Storage (cubic-feet) 900.90 16,044 19,147 901.00 16,910 20,794 901.10 17,882 22,534 901.20 18,854 24,371 901.30 19,827 26,305 901.40 20,799 28,336 901.50 21,771 30,465 901.60 22,743 32,690 901.70 23,715 35,013 901.80 24,688 37,433 901.90 25,660 39,951 902.00 26,632 42,565 902.10 27,619 45,278 902.20 28,607 48,089 902.30 29,594 50,999 902.40 30,582 54,008 902.50 31,569 57,116 902.60 32,556 60,322 902.70 33,544 63,627 902.80 34,531 67,031 902.90 35,519 70,533 903.00 36,506 74,134 903.10 37,325 77,826 903.20 38,145 81,600 903.30 38,964 85,455 903.40 39,784 89,392 903.50 40,603 93,412 903.60 41,422 97,513 903.70 42,242 101,696 903.80 43,061 105,961 903.90 43,881 110,308 904.00 44,700 114,737 904.10 45,920 119,268 904.20 47,140 123,921 904.30 48,360 128,696 904.40 49,580 133,593 904.50 50,800 138,612 904.60 52,020 143,753 904.70 53,240 149,016 904.80 54,460 154,401 904.90 55,680 159,908 905.00 56,900 165,537 MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 264HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Pond 61P: Englewood Pond [63] Warning: Exceeded Reach 61R INLET depth by 0.02' @ 13.84 hrs [63] Warning: Exceeded Reach 62R INLET depth by 2.62' @ 13.70 hrs Inflow Area = 67.893 ac, 1.08% Impervious, Inflow Depth = 4.98" for 100y 24hr event Inflow = 279.90 cfs @ 12.16 hrs, Volume= 28.168 af Outflow = 65.18 cfs @ 13.20 hrs, Volume= 28.101 af, Atten= 77%, Lag= 62.5 min Primary = 65.18 cfs @ 13.20 hrs, Volume= 28.101 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 896.14' @ 13.20 hrs Surf.Area= 185,756 sf Storage= 658,457 cf Plug-Flow detention time= 964.9 min calculated for 28.100 af (100% of inflow) Center-of-Mass det. time= 959.9 min ( 1,759.4 - 799.5 ) Volume Invert Avail.Storage Storage Description #1 892.00' 1,031,055 cf Custom Stage Data (Prismatic) Listed below (Recalc) Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 892.00 136,580 0 0 895.00 168,060 456,960 456,960 898.00 214,670 574,095 1,031,055 Device Routing Invert Outlet Devices #1 Primary 892.00'42.0" Round Culvert L= 29.0' RCP, square edge headwall, Ke= 0.500 Inlet / Outlet Invert= 892.00' / 891.71' S= 0.0100 '/' Cc= 0.900 n= 0.013 Concrete pipe, straight & clean, Flow Area= 9.62 sf #2 Device 1 887.63'42.0" Round Culvert L= 13.0' RCP, end-section conforming to fill, Ke= 0.500 Inlet / Outlet Invert= 887.50' / 887.63' S= -0.0100 '/' Cc= 0.900 n= 0.013 Concrete pipe, straight & clean, Flow Area= 9.62 sf Primary OutFlow Max=65.18 cfs @ 13.20 hrs HW=896.14' TW=892.17' (Dynamic Tailwater) 1=Culvert (Barrel Controls 65.18 cfs @ 7.22 fps) 2=Culvert (Passes 65.18 cfs of 92.24 cfs potential flow) MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 265HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Pond 61P: Englewood Pond Inflow Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)300 280 260 240 220 200 180 160 140 120 100 80 60 40 20 0 Inflow Area=67.893 ac Peak Elev=896.14' Storage=658,457 cf 279.90 cfs 65.18 cfs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 266HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Stage-Area-Storage for Pond 61P: Englewood Pond Elevation (feet) Surface (sq-ft) Storage (cubic-feet) 892.00 136,580 0 892.10 137,629 13,710 892.20 138,679 27,526 892.30 139,728 41,446 892.40 140,777 55,471 892.50 141,827 69,602 892.60 142,876 83,837 892.70 143,925 98,177 892.80 144,975 112,622 892.90 146,024 127,172 893.00 147,073 141,827 893.10 148,123 156,586 893.20 149,172 171,451 893.30 150,221 186,421 893.40 151,271 201,495 893.50 152,320 216,675 893.60 153,369 231,959 893.70 154,419 247,349 893.80 155,468 262,843 893.90 156,517 278,442 894.00 157,567 294,147 894.10 158,616 309,956 894.20 159,665 325,870 894.30 160,715 341,889 894.40 161,764 358,013 894.50 162,813 374,242 894.60 163,863 390,575 894.70 164,912 407,014 894.80 165,961 423,558 894.90 167,011 440,206 895.00 168,060 456,960 895.10 169,614 473,844 895.20 171,167 490,883 895.30 172,721 508,077 895.40 174,275 525,427 895.50 175,828 542,932 895.60 177,382 560,593 895.70 178,936 578,408 895.80 180,489 596,380 895.90 182,043 614,506 896.00 183,597 632,788 896.10 185,150 651,226 896.20 186,704 669,818 896.30 188,258 688,566 896.40 189,811 707,470 896.50 191,365 726,529 896.60 192,919 745,743 896.70 194,472 765,112 896.80 196,026 784,637 896.90 197,580 804,318 897.00 199,133 824,153 897.10 200,687 844,144 Elevation (feet) Surface (sq-ft) Storage (cubic-feet) 897.20 202,241 864,291 897.30 203,794 884,592 897.40 205,348 905,050 897.50 206,902 925,662 897.60 208,455 946,430 897.70 210,009 967,353 897.80 211,563 988,432 897.90 213,116 1,009,666 898.00 214,670 1,031,055 MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 267HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Pond 65P: Fresh MDW Inflow Area = 12.140 ac, 3.62% Impervious, Inflow Depth = 4.54" for 100y 24hr event Inflow = 60.84 cfs @ 12.14 hrs, Volume= 4.593 af Outflow = 10.33 cfs @ 12.88 hrs, Volume= 4.439 af, Atten= 83%, Lag= 44.3 min Primary = 10.33 cfs @ 12.88 hrs, Volume= 4.439 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 900.32' @ 12.88 hrs Surf.Area= 29,211 sf Storage= 102,625 cf Plug-Flow detention time= 162.5 min calculated for 4.439 af (97% of inflow) Center-of-Mass det. time= 145.4 min ( 914.8 - 769.4 ) Volume Invert Avail.Storage Storage Description #1 896.00' 123,320 cf Custom Stage Data (Prismatic) Listed below (Recalc) Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 896.00 18,540 0 0 900.00 28,230 93,540 93,540 901.00 31,330 29,780 123,320 Device Routing Invert Outlet Devices #1 Primary 892.35'12.0" Round Culvert L= 35.0' RCP, square edge headwall, Ke= 0.500 Inlet / Outlet Invert= 892.00' / 892.35' S= -0.0100 '/' Cc= 0.900 n= 0.012, Flow Area= 0.79 sf #2 Device 1 896.35'33.0" Round Culvert L= 69.0' RCP, end-section conforming to fill, Ke= 0.500 Inlet / Outlet Invert= 896.35' / 896.01' S= 0.0049 '/' Cc= 0.900 n= 0.012 Concrete pipe, finished, Flow Area= 5.94 sf Primary OutFlow Max=10.33 cfs @ 12.88 hrs HW=900.32' TW=891.88' (Dynamic Tailwater) 1=Culvert (Inlet Controls 10.33 cfs @ 13.16 fps) 2=Culvert (Passes 10.33 cfs of 42.27 cfs potential flow) MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 268HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Pond 65P: Fresh MDW Inflow Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)65 60 55 50 45 40 35 30 25 20 15 10 5 0 Inflow Area=12.140 ac Peak Elev=900.32' Storage=102,625 cf 60.84 cfs 10.33 cfs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 269HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Stage-Area-Storage for Pond 65P: Fresh MDW Elevation (feet) Surface (sq-ft) Storage (cubic-feet) 896.00 18,540 0 896.05 18,661 930 896.10 18,782 1,866 896.15 18,903 2,808 896.20 19,025 3,756 896.25 19,146 4,711 896.30 19,267 5,671 896.35 19,388 6,637 896.40 19,509 7,610 896.45 19,630 8,588 896.50 19,751 9,573 896.55 19,872 10,563 896.60 19,994 11,560 896.65 20,115 12,563 896.70 20,236 13,572 896.75 20,357 14,586 896.80 20,478 15,607 896.85 20,599 16,634 896.90 20,720 17,667 896.95 20,841 18,706 897.00 20,963 19,751 897.05 21,084 20,802 897.10 21,205 21,860 897.15 21,326 22,923 897.20 21,447 23,992 897.25 21,568 25,068 897.30 21,689 26,149 897.35 21,810 27,237 897.40 21,931 28,330 897.45 22,053 29,430 897.50 22,174 30,535 897.55 22,295 31,647 897.60 22,416 32,765 897.65 22,537 33,889 897.70 22,658 35,019 897.75 22,779 36,154 897.80 22,900 37,296 897.85 23,022 38,445 897.90 23,143 39,599 897.95 23,264 40,759 898.00 23,385 41,925 898.05 23,506 43,097 898.10 23,627 44,276 898.15 23,748 45,460 898.20 23,870 46,650 898.25 23,991 47,847 898.30 24,112 49,050 898.35 24,233 50,258 898.40 24,354 51,473 898.45 24,475 52,694 898.50 24,596 53,920 898.55 24,717 55,153 Elevation (feet) Surface (sq-ft) Storage (cubic-feet) 898.60 24,839 56,392 898.65 24,960 57,637 898.70 25,081 58,888 898.75 25,202 60,145 898.80 25,323 61,408 898.85 25,444 62,677 898.90 25,565 63,953 898.95 25,686 65,234 899.00 25,808 66,521 899.05 25,929 67,815 899.10 26,050 69,114 899.15 26,171 70,420 899.20 26,292 71,731 899.25 26,413 73,049 899.30 26,534 74,373 899.35 26,655 75,702 899.40 26,776 77,038 899.45 26,898 78,380 899.50 27,019 79,728 899.55 27,140 81,082 899.60 27,261 82,442 899.65 27,382 83,808 899.70 27,503 85,180 899.75 27,624 86,558 899.80 27,745 87,942 899.85 27,867 89,333 899.90 27,988 90,729 899.95 28,109 92,132 900.00 28,230 93,540 900.05 28,385 94,955 900.10 28,540 96,379 900.15 28,695 97,809 900.20 28,850 99,248 900.25 29,005 100,694 900.30 29,160 102,148 900.35 29,315 103,610 900.40 29,470 105,080 900.45 29,625 106,557 900.50 29,780 108,043 900.55 29,935 109,535 900.60 30,090 111,036 900.65 30,245 112,544 900.70 30,400 114,061 900.75 30,555 115,584 900.80 30,710 117,116 900.85 30,865 118,655 900.90 31,020 120,202 900.95 31,175 121,757 901.00 31,330 123,320 MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 270HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Pond 68P: East MNDOT M10 Wetland Inflow Area = 97.033 ac, 1.21% Impervious, Inflow Depth = 4.80" for 100y 24hr event Inflow = 131.13 cfs @ 12.14 hrs, Volume= 38.775 af Outflow = 4.35 cfs @ 19.07 hrs, Volume= 35.364 af, Atten= 97%, Lag= 415.9 min Primary = 4.35 cfs @ 19.07 hrs, Volume= 35.364 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 894.16' @ 19.07 hrs Surf.Area= 412,550 sf Storage= 1,217,211 cf Plug-Flow detention time= 3,584.3 min calculated for 35.363 af (91% of inflow) Center-of-Mass det. time= 3,144.5 min ( 4,650.4 - 1,505.9 ) Volume Invert Avail.Storage Storage Description #1 890.00' 1,574,445 cf Custom Stage Data (Prismatic) Listed below (Recalc) Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 890.00 68,660 0 0 891.00 198,790 133,725 133,725 892.00 340,250 269,520 403,245 895.00 440,550 1,171,200 1,574,445 Device Routing Invert Outlet Devices #1 Primary 890.30'18.0" Round Culvert L= 155.0' RCP, square edge headwall, Ke= 0.500 Inlet / Outlet Invert= 890.30' / 889.53' S= 0.0050 '/' Cc= 0.900 n= 0.013 Concrete pipe, straight & clean, Flow Area= 1.77 sf #2 Device 1 891.00'10.0" Vert. Orifice/Grate C= 0.600 #3 Device 2 890.50'18.0" Round Culvert L= 40.0' RCP, end-section conforming to fill, Ke= 0.500 Inlet / Outlet Invert= 890.30' / 890.50' S= -0.0050 '/' Cc= 0.900 n= 0.013 Concrete pipe, straight & clean, Flow Area= 1.77 sf Primary OutFlow Max=4.35 cfs @ 19.07 hrs HW=894.16' (Free Discharge) 1=Culvert (Passes 4.35 cfs of 12.06 cfs potential flow) 2=Orifice/Grate (Orifice Controls 4.35 cfs @ 7.98 fps) 3=Culvert (Passes 4.35 cfs of 14.52 cfs potential flow) MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 271HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Pond 68P: East MNDOT M10 Wetland Inflow Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)140 130 120 110 100 90 80 70 60 50 40 30 20 10 0 Inflow Area=97.033 ac Peak Elev=894.16' Storage=1,217,211 cf 131.13 cfs 4.35 cfs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 272HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Stage-Area-Storage for Pond 68P: East MNDOT M10 Wetland Elevation (feet) Surface (sq-ft) Storage (cubic-feet) 890.00 68,660 0 890.05 75,166 3,596 890.10 81,673 7,517 890.15 88,179 11,763 890.20 94,686 16,335 890.25 101,193 21,232 890.30 107,699 26,454 890.35 114,206 32,001 890.40 120,712 37,874 890.45 127,219 44,073 890.50 133,725 50,596 890.55 140,231 57,445 890.60 146,738 64,619 890.65 153,244 72,119 890.70 159,751 79,944 890.75 166,258 88,094 890.80 172,764 96,570 890.85 179,271 105,370 890.90 185,777 114,497 890.95 192,284 123,948 891.00 198,790 133,725 891.05 205,863 143,841 891.10 212,936 154,311 891.15 220,009 165,135 891.20 227,082 176,312 891.25 234,155 187,843 891.30 241,228 199,728 891.35 248,301 211,966 891.40 255,374 224,558 891.45 262,447 237,503 891.50 269,520 250,803 891.55 276,593 264,455 891.60 283,666 278,462 891.65 290,739 292,822 891.70 297,812 307,536 891.75 304,885 322,603 891.80 311,958 338,024 891.85 319,031 353,799 891.90 326,104 369,927 891.95 333,177 386,409 892.00 340,250 403,245 892.05 341,922 420,299 892.10 343,593 437,437 892.15 345,265 454,659 892.20 346,937 471,964 892.25 348,608 489,352 892.30 350,280 506,824 892.35 351,952 524,380 892.40 353,623 542,020 892.45 355,295 559,743 892.50 356,967 577,549 892.55 358,638 595,439 Elevation (feet) Surface (sq-ft) Storage (cubic-feet) 892.60 360,310 613,413 892.65 361,982 631,470 892.70 363,653 649,611 892.75 365,325 667,836 892.80 366,997 686,144 892.85 368,668 704,535 892.90 370,340 723,010 892.95 372,012 741,569 893.00 373,683 760,212 893.05 375,355 778,938 893.10 377,027 797,747 893.15 378,698 816,640 893.20 380,370 835,617 893.25 382,042 854,677 893.30 383,713 873,821 893.35 385,385 893,049 893.40 387,057 912,360 893.45 388,728 931,754 893.50 390,400 951,233 893.55 392,072 970,794 893.60 393,743 990,440 893.65 395,415 1,010,169 893.70 397,087 1,029,981 893.75 398,758 1,049,877 893.80 400,430 1,069,857 893.85 402,102 1,089,920 893.90 403,773 1,110,067 893.95 405,445 1,130,298 894.00 407,117 1,150,612 894.05 408,788 1,171,009 894.10 410,460 1,191,491 894.15 412,132 1,212,055 894.20 413,803 1,232,704 894.25 415,475 1,253,436 894.30 417,147 1,274,251 894.35 418,818 1,295,150 894.40 420,490 1,316,133 894.45 422,162 1,337,199 894.50 423,833 1,358,349 894.55 425,505 1,379,583 894.60 427,177 1,400,900 894.65 428,848 1,422,300 894.70 430,520 1,443,785 894.75 432,192 1,465,352 894.80 433,863 1,487,004 894.85 435,535 1,508,739 894.90 437,207 1,530,557 894.95 438,878 1,552,459 895.00 440,550 1,574,445 Type II 24-hr 100y 24hr Old Rainfall=6.00"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 273HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Time span=0.00-360.00 hrs, dt=0.01 hrs, 36001 points Runoff by SCS TR-20 method, UH=SCS, Weighted-Q Reach routing by Dyn-Stor-Ind method - Pond routing by Dyn-Stor-Ind method Runoff Area=27,760 sf 0.00% Impervious Runoff Depth=1.76"Subcatchment 0S: To Powers - North Flow Length=212' Tc=6.5 min CN=58 Runoff=1.93 cfs 0.093 af Runoff Area=29,120 sf 0.00% Impervious Runoff Depth=2.60"Subcatchment 00S: To Powers - South Flow Length=198' Tc=7.2 min CN=WQ Runoff=2.89 cfs 0.145 af Runoff Area=90,310 sf 0.00% Impervious Runoff Depth=1.76"Subcatchment 1S: To Lyman - NE Flow Length=122' Slope=0.1600 '/' Tc=5.0 min CN=58 Runoff=6.67 cfs 0.304 af Runoff Area=687,520 sf 4.63% Impervious Runoff Depth=3.76"Subcatchment 2S: Wetland 2 Flow Length=1,087' Tc=26.4 min CN=WQ Runoff=54.35 cfs 4.940 af Runoff Area=560,145 sf 0.00% Impervious Runoff Depth=3.61"Subcatchment 3S: Wetland 1 Flow Length=585' Tc=16.8 min CN=WQ Runoff=55.47 cfs 3.870 af Runoff Area=35,675 sf 0.00% Impervious Runoff Depth=3.58"Subcatchment 4oS: From Powers Flow Length=320' Tc=6.0 min CN=78 Runoff=5.16 cfs 0.244 af Runoff Area=232,825 sf 0.00% Impervious Runoff Depth=3.54"Subcatchment 4S: Wetland 8 Flow Length=472' Tc=18.3 min CN=WQ Runoff=21.96 cfs 1.575 af Runoff Area=4,669 sf 0.00% Impervious Runoff Depth=1.76"Subcatchment 16oS: East Offsite Tc=10.0 min CN=58 Runoff=0.28 cfs 0.016 af Runoff Area=9.400 ac 0.00% Impervious Runoff Depth=4.52"Subcatchment 61S: Powers (from SRF) Tc=9.0 min CN=87 Runoff=64.51 cfs 3.538 af Runoff Area=4.200 ac 0.00% Impervious Runoff Depth=3.88"Subcatchment 62S: NE Ramp (from SRF) Tc=8.0 min CN=81 Runoff=26.48 cfs 1.359 af Runoff Area=8.200 ac 0.00% Impervious Runoff Depth=4.52"Subcatchment 63S: TH 212 (from SRF) Tc=12.0 min CN=87 Runoff=51.01 cfs 3.087 af Runoff Area=7.800 ac 0.00% Impervious Runoff Depth=3.48"Subcatchment 64S: Englewood (from SRF) Tc=10.0 min CN=77 Runoff=41.57 cfs 2.261 af Runoff Area=6.400 ac 0.00% Impervious Runoff Depth=4.09"Subcatchment 65S: LYMLP (from SRF) Tc=15.0 min CN=83 Runoff=33.39 cfs 2.182 af Runoff Area=1.900 ac 0.00% Impervious Runoff Depth=5.30"Subcatchment 66S: N54 (from SRF) Tc=7.6 min CN=94 Runoff=15.03 cfs 0.839 af Runoff Area=0.440 ac 100.00% Impervious Runoff Depth=6.00"Subcatchment 67-1S: Fresh MDW Tc=7.0 min CN=100 Runoff=3.66 cfs 0.220 af Runoff Area=1.100 ac 0.00% Impervious Runoff Depth=2.90"Subcatchment 67-2S: Fresh MDW Subcatch Tc=7.0 min CN=71 Runoff=5.50 cfs 0.266 af Type II 24-hr 100y 24hr Old Rainfall=6.00"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 274HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Runoff Area=2.300 ac 0.00% Impervious Runoff Depth=0.00"Subcatchment 67-3S: Fresh MDW Subcatch Tc=83.0 min CN=10 Runoff=0.00 cfs 0.000 af Runoff Area=17.000 ac 0.00% Impervious Runoff Depth=3.18"Subcatchment 68S: M10 Tc=10.0 min CN=74 Runoff=83.35 cfs 4.512 af Inflow=99.45 cfs 10.732 afReach 1R: Lake Susan Drainage Outflow=99.45 cfs 10.732 af Avg. Flow Depth=2.13' Max Vel=4.00 fps Inflow=125.55 cfs 14.271 afReach 61R: NERDITCH n=0.035 L=545.0' S=0.0055 '/' Capacity=737.08 cfs Outflow=122.63 cfs 14.271 af Avg. Flow Depth=2.00' Max Vel=6.29 fps Inflow=26.48 cfs 1.359 afReach 62R: L42 24.0" Round Pipe n=0.012 L=200.0' S=0.0050 '/' Capacity=17.33 cfs Outflow=18.48 cfs 1.359 af Peak Elev=909.76' Storage=11,210 cf Inflow=54.35 cfs 4.940 afPond 2P: Wetland 2 Outflow=52.53 cfs 4.940 af Peak Elev=907.40' Storage=74,025 cf Inflow=95.61 cfs 8.810 afPond 3P: Basin 3 (Wetland 1) Outflow=84.48 cfs 8.356 af Peak Elev=899.92' Storage=7,587 cf Inflow=101.16 cfs 10.175 afPond 4P: Powers Culvert 54.0" Round Culvert n=0.013 L=191.0' S=0.0062 '/' Outflow=97.71 cfs 10.175 af Peak Elev=894.91' Storage=442,293 cf Inflow=230.21 cfs 20.978 afPond 61P: Englewood Pond Outflow=39.87 cfs 20.916 af Peak Elev=899.14' Storage=70,111 cf Inflow=52.86 cfs 3.506 afPond 65P: Fresh MDW Outflow=9.48 cfs 3.352 af Peak Elev=893.37' Storage=901,172 cf Inflow=103.25 cfs 28.780 afPond 68P: East MNDOT M10 Wetland Outflow=3.67 cfs 25.406 af Total Runoff Area = 97.033 ac Runoff Volume = 29.451 af Average Runoff Depth = 3.64" 98.79% Pervious = 95.862 ac 1.21% Impervious = 1.170 ac Type II 24-hr 100y 24hr Old Rainfall=6.00"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 275HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 0S: To Powers - North Runoff = 1.93 cfs @ 11.99 hrs, Volume= 0.093 af, Depth= 1.76" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Type II 24-hr 100y 24hr Old Rainfall=6.00" Area (sf) CN Description 27,760 58 Meadow, non-grazed, HSG B 27,760 58 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 5.6 75 0.0530 0.22 Sheet Flow, Grass: Short n= 0.150 P2= 2.87" 0.9 137 0.1240 2.46 Shallow Concentrated Flow, Short Grass Pasture Kv= 7.0 fps 6.5 212 Total Subcatchment 0S: To Powers - North Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)2 1 0 Type II 24-hr 100y 24hr Old Rainfall=6.00" Runoff Area=27,760 sf Runoff Volume=0.093 af Runoff Depth=1.76" Flow Length=212' Tc=6.5 min CN=58 1.93 cfs Type II 24-hr 100y 24hr Old Rainfall=6.00"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 276HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 00S: To Powers - South Runoff = 2.89 cfs @ 11.99 hrs, Volume= 0.145 af, Depth= 2.60" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Type II 24-hr 100y 24hr Old Rainfall=6.00" Area (sf) CN Description 14,560 55 Woods, Good, HSG B 14,560 79 Pasture/grassland/range, Poor, HSG B 29,120 Weighted Average 29,120 67 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 4.3 38 0.0200 0.15 Sheet Flow, Range n= 0.130 P2= 2.87" 2.9 160 0.0170 0.91 Shallow Concentrated Flow, Short Grass Pasture Kv= 7.0 fps 7.2 198 Total Subcatchment 00S: To Powers - South Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)3 2 1 0 Type II 24-hr 100y 24hr Old Rainfall=6.00" Runoff Area=29,120 sf Runoff Volume=0.145 af Runoff Depth=2.60" Flow Length=198' Tc=7.2 min CN=WQ 2.89 cfs Type II 24-hr 100y 24hr Old Rainfall=6.00"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 277HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 1S: To Lyman - NE Runoff = 6.67 cfs @ 11.97 hrs, Volume= 0.304 af, Depth= 1.76" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Type II 24-hr 100y 24hr Old Rainfall=6.00" Area (sf) CN Description 90,310 58 Meadow, non-grazed, HSG B 90,310 58 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 2.6 50 0.1600 0.32 Sheet Flow, Grass: Short n= 0.150 P2= 2.87" 0.4 72 0.1600 2.80 Shallow Concentrated Flow, Short Grass Pasture Kv= 7.0 fps 2.0 Direct Entry, Make up to 5 Minutes 5.0 122 Total Subcatchment 1S: To Lyman - NE Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)7 6 5 4 3 2 1 0 Type II 24-hr 100y 24hr Old Rainfall=6.00" Runoff Area=90,310 sf Runoff Volume=0.304 af Runoff Depth=1.76" Flow Length=122' Slope=0.1600 '/' Tc=5.0 min CN=58 6.67 cfs Type II 24-hr 100y 24hr Old Rainfall=6.00"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 278HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 2S: Wetland 2 Runoff = 54.35 cfs @ 12.20 hrs, Volume= 4.940 af, Depth= 3.76" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Type II 24-hr 100y 24hr Old Rainfall=6.00" Area (sf) CN Description 31,810 98 Water Surface, HSG D * 70,790 96 Wetland 79,915 79 Pasture/grassland/range, Poor, HSG B * 86,270 61 Grasses, Good, HSG B 418,735 79 Pasture/grassland/range, Poor, HSG B 687,520 Weighted Average 655,710 78 95.37% Pervious Area 31,810 98 4.63% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 9.2 135 0.0370 0.25 Sheet Flow, Range n= 0.130 P2= 2.87" 0.4 60 0.1310 2.53 Shallow Concentrated Flow, Short Grass Pasture Kv= 7.0 fps 0.1 46 0.6500 5.64 Shallow Concentrated Flow, Short Grass Pasture Kv= 7.0 fps 1.4 90 0.0220 1.04 Shallow Concentrated Flow, Short Grass Pasture Kv= 7.0 fps 0.9 52 0.0190 0.96 Shallow Concentrated Flow, Short Grass Pasture Kv= 7.0 fps 1.3 94 0.0320 1.25 Shallow Concentrated Flow, Short Grass Pasture Kv= 7.0 fps 2.3 210 0.0480 1.53 Shallow Concentrated Flow, Short Grass Pasture Kv= 7.0 fps 0.4 50 0.0200 2.12 Shallow Concentrated Flow, Wetland Grassed Waterway Kv= 15.0 fps 10.4 350 0.0014 0.56 Shallow Concentrated Flow, Wetland Grassed Waterway Kv= 15.0 fps 26.4 1,087 Total Type II 24-hr 100y 24hr Old Rainfall=6.00"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 279HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Subcatchment 2S: Wetland 2 Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)60 55 50 45 40 35 30 25 20 15 10 5 0 Type II 24-hr 100y 24hr Old Rainfall=6.00" Runoff Area=687,520 sf Runoff Volume=4.940 af Runoff Depth=3.76" Flow Length=1,087' Tc=26.4 min CN=WQ 54.35 cfs Type II 24-hr 100y 24hr Old Rainfall=6.00"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 280HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 3S: Wetland 1 Runoff = 55.47 cfs @ 12.09 hrs, Volume= 3.870 af, Depth= 3.61" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Type II 24-hr 100y 24hr Old Rainfall=6.00" Area (sf) CN Description * 56,025 96 Wetland, HSG D 55,045 79 Pasture/grassland/range, Poor, HSG B 62,080 55 Woods, Good, HSG B 349,085 79 Pasture/grassland/range, Poor, HSG B 37,910 77 Woods, Good, HSG D 560,145 Weighted Average 560,145 78 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 9.2 100 0.0200 0.18 Sheet Flow, Range n= 0.130 P2= 2.87" 7.2 438 0.0210 1.01 Shallow Concentrated Flow, Short Grass Pasture Kv= 7.0 fps 0.4 47 0.0150 1.84 Shallow Concentrated Flow, Wetland Grassed Waterway Kv= 15.0 fps 16.8 585 Total Subcatchment 3S: Wetland 1 Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)60 55 50 45 40 35 30 25 20 15 10 5 0 Type II 24-hr 100y 24hr Old Rainfall=6.00" Runoff Area=560,145 sf Runoff Volume=3.870 af Runoff Depth=3.61" Flow Length=585' Tc=16.8 min CN=WQ 55.47 cfs Type II 24-hr 100y 24hr Old Rainfall=6.00"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 281HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 4oS: From Powers Runoff = 5.16 cfs @ 11.97 hrs, Volume= 0.244 af, Depth= 3.58" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Type II 24-hr 100y 24hr Old Rainfall=6.00" Area (sf) CN Description 35,675 78 Meadow, non-grazed, HSG D 35,675 78 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 3.5 75 0.1670 0.36 Sheet Flow, Grass: Short n= 0.150 P2= 2.87" 2.5 245 0.0550 1.64 Shallow Concentrated Flow, Short Grass Pasture Kv= 7.0 fps 6.0 320 Total Subcatchment 4oS: From Powers Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)5 4 3 2 1 0 Type II 24-hr 100y 24hr Old Rainfall=6.00" Runoff Area=35,675 sf Runoff Volume=0.244 af Runoff Depth=3.58" Flow Length=320' Tc=6.0 min CN=78 5.16 cfs Type II 24-hr 100y 24hr Old Rainfall=6.00"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 282HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 4S: Wetland 8 Runoff = 21.96 cfs @ 12.10 hrs, Volume= 1.575 af, Depth= 3.54" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Type II 24-hr 100y 24hr Old Rainfall=6.00" Area (sf) CN Description * 2,815 96 Wetland, HSG D 15,470 55 Woods, Good, HSG B 150,205 79 Pasture/grassland/range, Poor, HSG B 37,925 79 Pasture/grassland/range, Poor, HSG B 26,410 77 Woods, Good, HSG D 232,825 Weighted Average 232,825 77 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 10.4 50 0.0350 0.08 Sheet Flow, Woods: Light underbrush n= 0.400 P2= 2.87" 4.2 50 0.0350 0.20 Sheet Flow, Range n= 0.130 P2= 2.87" 3.5 325 0.0490 1.55 Shallow Concentrated Flow, Short Grass Pasture Kv= 7.0 fps 0.2 47 0.0600 3.67 Shallow Concentrated Flow, Wetland Grassed Waterway Kv= 15.0 fps 18.3 472 Total Type II 24-hr 100y 24hr Old Rainfall=6.00"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 283HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Subcatchment 4S: Wetland 8 Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 Type II 24-hr 100y 24hr Old Rainfall=6.00" Runoff Area=232,825 sf Runoff Volume=1.575 af Runoff Depth=3.54" Flow Length=472' Tc=18.3 min CN=WQ 21.96 cfs Type II 24-hr 100y 24hr Old Rainfall=6.00"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 284HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 16oS: East Offsite Runoff = 0.28 cfs @ 12.03 hrs, Volume= 0.016 af, Depth= 1.76" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Type II 24-hr 100y 24hr Old Rainfall=6.00" Area (sf) CN Description 4,669 58 Meadow, non-grazed, HSG B 4,669 58 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 10.0 Direct Entry, Subcatchment 16oS: East Offsite Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.3 0.28 0.26 0.24 0.22 0.2 0.18 0.16 0.14 0.12 0.1 0.08 0.06 0.04 0.02 0 Type II 24-hr 100y 24hr Old Rainfall=6.00" Runoff Area=4,669 sf Runoff Volume=0.016 af Runoff Depth=1.76" Tc=10.0 min CN=58 0.28 cfs Type II 24-hr 100y 24hr Old Rainfall=6.00"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 285HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 61S: Powers (from SRF) Runoff = 64.51 cfs @ 12.00 hrs, Volume= 3.538 af, Depth= 4.52" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Type II 24-hr 100y 24hr Old Rainfall=6.00" Area (ac) CN Description * 9.400 87 Weighted 9.400 87 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 9.0 Direct Entry, Subcatchment 61S: Powers (from SRF) Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)70 65 60 55 50 45 40 35 30 25 20 15 10 5 0 Type II 24-hr 100y 24hr Old Rainfall=6.00" Runoff Area=9.400 ac Runoff Volume=3.538 af Runoff Depth=4.52" Tc=9.0 min CN=87 64.51 cfs Type II 24-hr 100y 24hr Old Rainfall=6.00"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 286HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 62S: NE Ramp (from SRF) Runoff = 26.48 cfs @ 11.99 hrs, Volume= 1.359 af, Depth= 3.88" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Type II 24-hr 100y 24hr Old Rainfall=6.00" Area (ac) CN Description * 4.200 81 Weighted 4.200 81 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 8.0 Direct Entry, Subcatchment 62S: NE Ramp (from SRF) Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)28 26 24 22 20 18 16 14 12 10 8 6 4 2 0 Type II 24-hr 100y 24hr Old Rainfall=6.00" Runoff Area=4.200 ac Runoff Volume=1.359 af Runoff Depth=3.88" Tc=8.0 min CN=81 26.48 cfs Type II 24-hr 100y 24hr Old Rainfall=6.00"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 287HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 63S: TH 212 (from SRF) Runoff = 51.01 cfs @ 12.03 hrs, Volume= 3.087 af, Depth= 4.52" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Type II 24-hr 100y 24hr Old Rainfall=6.00" Area (ac) CN Description * 8.200 87 Weighted 8.200 87 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 12.0 Direct Entry, Subcatchment 63S: TH 212 (from SRF) Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)55 50 45 40 35 30 25 20 15 10 5 0 Type II 24-hr 100y 24hr Old Rainfall=6.00" Runoff Area=8.200 ac Runoff Volume=3.087 af Runoff Depth=4.52" Tc=12.0 min CN=87 51.01 cfs Type II 24-hr 100y 24hr Old Rainfall=6.00"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 288HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 64S: Englewood (from SRF) Runoff = 41.57 cfs @ 12.02 hrs, Volume= 2.261 af, Depth= 3.48" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Type II 24-hr 100y 24hr Old Rainfall=6.00" Area (ac) CN Description * 7.800 77 Weighted 7.800 77 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 10.0 Direct Entry, Subcatchment 64S: Englewood (from SRF) Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)46 44 42 40 38 36 34 32 30 28 26 24 22 20 18 16 14 12 10 8 6 4 2 0 Type II 24-hr 100y 24hr Old Rainfall=6.00" Runoff Area=7.800 ac Runoff Volume=2.261 af Runoff Depth=3.48" Tc=10.0 min CN=77 41.57 cfs Type II 24-hr 100y 24hr Old Rainfall=6.00"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 289HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 65S: LYMLP (from SRF) Runoff = 33.39 cfs @ 12.07 hrs, Volume= 2.182 af, Depth= 4.09" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Type II 24-hr 100y 24hr Old Rainfall=6.00" Area (ac) CN Description * 6.400 83 Weighted 6.400 83 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 15.0 Direct Entry, Subcatchment 65S: LYMLP (from SRF) Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)36 34 32 30 28 26 24 22 20 18 16 14 12 10 8 6 4 2 0 Type II 24-hr 100y 24hr Old Rainfall=6.00" Runoff Area=6.400 ac Runoff Volume=2.182 af Runoff Depth=4.09" Tc=15.0 min CN=83 33.39 cfs Type II 24-hr 100y 24hr Old Rainfall=6.00"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 290HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 66S: N54 (from SRF) Runoff = 15.03 cfs @ 11.98 hrs, Volume= 0.839 af, Depth= 5.30" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Type II 24-hr 100y 24hr Old Rainfall=6.00" Area (ac) CN Description * 1.900 94 Weighted 1.900 94 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 7.6 Direct Entry, Subcatchment 66S: N54 (from SRF) Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 Type II 24-hr 100y 24hr Old Rainfall=6.00" Runoff Area=1.900 ac Runoff Volume=0.839 af Runoff Depth=5.30" Tc=7.6 min CN=94 15.03 cfs Type II 24-hr 100y 24hr Old Rainfall=6.00"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 291HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 67-1S: Fresh MDW Subcatch 1 (from SRF) Runoff = 3.66 cfs @ 11.98 hrs, Volume= 0.220 af, Depth= 6.00" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Type II 24-hr 100y 24hr Old Rainfall=6.00" Area (ac) CN Description * 0.440 100 Weighted 0.440 100 100.00% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 7.0 Direct Entry, Subcatchment 67-1S: Fresh MDW Subcatch 1 (from SRF) Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)4 3 2 1 0 Type II 24-hr 100y 24hr Old Rainfall=6.00" Runoff Area=0.440 ac Runoff Volume=0.220 af Runoff Depth=6.00" Tc=7.0 min CN=100 3.66 cfs Type II 24-hr 100y 24hr Old Rainfall=6.00"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 292HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 67-2S: Fresh MDW Subcatch 2 (from SRF) Runoff = 5.50 cfs @ 11.99 hrs, Volume= 0.266 af, Depth= 2.90" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Type II 24-hr 100y 24hr Old Rainfall=6.00" Area (ac) CN Description * 1.100 71 Weighted 1.100 71 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 7.0 Direct Entry, Subcatchment 67-2S: Fresh MDW Subcatch 2 (from SRF) Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)6 5 4 3 2 1 0 Type II 24-hr 100y 24hr Old Rainfall=6.00" Runoff Area=1.100 ac Runoff Volume=0.266 af Runoff Depth=2.90" Tc=7.0 min CN=71 5.50 cfs Type II 24-hr 100y 24hr Old Rainfall=6.00"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 293HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 67-3S: Fresh MDW Subcatch 3 (from SRF) [45] Hint: Runoff=Zero Runoff = 0.00 cfs @ 0.00 hrs, Volume= 0.000 af, Depth= 0.00" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Type II 24-hr 100y 24hr Old Rainfall=6.00" Area (ac) CN Description * 2.300 10 Weighted 2.300 10 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 83.0 Direct Entry, Subcatchment 67-3S: Fresh MDW Subcatch 3 (from SRF) Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)1 0 Type II 24-hr 100y 24hr Old Rainfall=6.00" Runoff Area=2.300 ac Runoff Volume=0.000 af Runoff Depth=0.00" Tc=83.0 min CN=10 0.00 cfs Type II 24-hr 100y 24hr Old Rainfall=6.00"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 294HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 68S: M10 Runoff = 83.35 cfs @ 12.02 hrs, Volume= 4.512 af, Depth= 3.18" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Type II 24-hr 100y 24hr Old Rainfall=6.00" Area (ac) CN Description * 17.000 74 Weighted 17.000 74 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 10.0 Direct Entry, Subcatchment 68S: M10 Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)90 85 80 75 70 65 60 55 50 45 40 35 30 25 20 15 10 5 0 Type II 24-hr 100y 24hr Old Rainfall=6.00" Runoff Area=17.000 ac Runoff Volume=4.512 af Runoff Depth=3.18" Tc=10.0 min CN=74 83.35 cfs Type II 24-hr 100y 24hr Old Rainfall=6.00"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 295HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Reach 1R: Lake Susan Drainage [40] Hint: Not Described (Outflow=Inflow) Inflow Area = 38.293 ac, 1.91% Impervious, Inflow Depth = 3.36" for 100y 24hr Old event Inflow = 99.45 cfs @ 12.26 hrs, Volume= 10.732 af Outflow = 99.45 cfs @ 12.26 hrs, Volume= 10.732 af, Atten= 0%, Lag= 0.0 min Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Reach 1R: Lake Susan Drainage Inflow Outflow Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)110 105 100 95 90 85 80 75 70 65 60 55 50 45 40 35 30 25 20 15 10 5 0 Inflow Area=38.293 ac 99.45 cfs 99.45 cfs Type II 24-hr 100y 24hr Old Rainfall=6.00"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 296HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Reach 61R: NERDITCH Inflow Area = 47.693 ac, 1.53% Impervious, Inflow Depth = 3.59" for 100y 24hr Old event Inflow = 125.55 cfs @ 12.03 hrs, Volume= 14.271 af Outflow = 122.63 cfs @ 12.06 hrs, Volume= 14.271 af, Atten= 2%, Lag= 1.8 min Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Max. Velocity= 4.00 fps, Min. Travel Time= 2.3 min Avg. Velocity = 0.48 fps, Avg. Travel Time= 19.1 min Peak Storage= 16,726 cf @ 12.06 hrs Average Depth at Peak Storage= 2.13' Bank-Full Depth= 5.00' Flow Area= 115.0 sf, Capacity= 737.08 cfs 8.00' x 5.00' deep channel, n= 0.035 Side Slope Z-value= 3.0 '/' Top Width= 38.00' Length= 545.0' Slope= 0.0055 '/' Inlet Invert= 895.00', Outlet Invert= 892.00' ‡ Reach 61R: NERDITCH Inflow Outflow Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)140 130 120 110 100 90 80 70 60 50 40 30 20 10 0 Inflow Area=47.693 ac Avg. Flow Depth=2.13' Max Vel=4.00 fps n=0.035 L=545.0' S=0.0055 '/' Capacity=737.08 cfs 125.55 cfs 122.63 cfs Type II 24-hr 100y 24hr Old Rainfall=6.00"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 297HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Stage-Area-Storage for Reach 61R: NERDITCH Elevation (feet) End-Area (sq-ft) Storage (cubic-feet) 895.00 0.0 0 895.05 0.4 222 895.10 0.8 452 895.15 1.3 691 895.20 1.7 937 895.25 2.2 1,192 895.30 2.7 1,455 895.35 3.2 1,726 895.40 3.7 2,006 895.45 4.2 2,293 895.50 4.8 2,589 895.55 5.3 2,893 895.60 5.9 3,205 895.65 6.5 3,525 895.70 7.1 3,853 895.75 7.7 4,190 895.80 8.3 4,534 895.85 9.0 4,887 895.90 9.6 5,248 895.95 10.3 5,618 896.00 11.0 5,995 896.05 11.7 6,381 896.10 12.4 6,774 896.15 13.2 7,176 896.20 13.9 7,586 896.25 14.7 8,005 896.30 15.5 8,431 896.35 16.3 8,866 896.40 17.1 9,309 896.45 17.9 9,760 896.50 18.8 10,219 896.55 19.6 10,686 896.60 20.5 11,162 896.65 21.4 11,645 896.70 22.3 12,137 896.75 23.2 12,637 896.80 24.1 13,145 896.85 25.1 13,662 896.90 26.0 14,186 896.95 27.0 14,719 897.00 28.0 15,260 897.05 29.0 15,809 897.10 30.0 16,366 897.15 31.1 16,932 897.20 32.1 17,505 897.25 33.2 18,087 897.30 34.3 18,677 897.35 35.4 19,275 897.40 36.5 19,882 897.45 37.6 20,496 897.50 38.8 21,119 897.55 39.9 21,750 Elevation (feet) End-Area (sq-ft) Storage (cubic-feet) 897.60 41.1 22,389 897.65 42.3 23,036 897.70 43.5 23,691 897.75 44.7 24,355 897.80 45.9 25,026 897.85 47.2 25,706 897.90 48.4 26,394 897.95 49.7 27,091 898.00 51.0 27,795 898.05 52.3 28,508 898.10 53.6 29,228 898.15 55.0 29,957 898.20 56.3 30,694 898.25 57.7 31,440 898.30 59.1 32,193 898.35 60.5 32,955 898.40 61.9 33,725 898.45 63.3 34,503 898.50 64.8 35,289 898.55 66.2 36,083 898.60 67.7 36,886 898.65 69.2 37,696 898.70 70.7 38,515 898.75 72.2 39,342 898.80 73.7 40,177 898.85 75.3 41,021 898.90 76.8 41,872 898.95 78.4 42,732 899.00 80.0 43,600 899.05 81.6 44,476 899.10 83.2 45,360 899.15 84.9 46,253 899.20 86.5 47,153 899.25 88.2 48,062 899.30 89.9 48,979 899.35 91.6 49,904 899.40 93.3 50,838 899.45 95.0 51,779 899.50 96.8 52,729 899.55 98.5 53,687 899.60 100.3 54,653 899.65 102.1 55,627 899.70 103.9 56,609 899.75 105.7 57,600 899.80 107.5 58,598 899.85 109.4 59,605 899.90 111.2 60,620 899.95 113.1 61,644 900.00 115.0 62,675 Type II 24-hr 100y 24hr Old Rainfall=6.00"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 298HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Reach 62R: L42 [52] Hint: Inlet/Outlet conditions not evaluated [55] Hint: Peak inflow is 153% of Manning's capacity [76] Warning: Detained 0.075 af (Pond w/culvert advised) Inflow Area = 4.200 ac, 0.00% Impervious, Inflow Depth = 3.88" for 100y 24hr Old event Inflow = 26.48 cfs @ 11.99 hrs, Volume= 1.359 af Outflow = 18.48 cfs @ 11.92 hrs, Volume= 1.359 af, Atten= 30%, Lag= 0.0 min Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Max. Velocity= 6.29 fps, Min. Travel Time= 0.5 min Avg. Velocity = 2.29 fps, Avg. Travel Time= 1.5 min Peak Storage= 628 cf @ 11.93 hrs Average Depth at Peak Storage= 2.00' Bank-Full Depth= 2.00' Flow Area= 3.1 sf, Capacity= 17.33 cfs 24.0" Round Pipe n= 0.012 Length= 200.0' Slope= 0.0050 '/' Inlet Invert= 893.00', Outlet Invert= 892.00' Type II 24-hr 100y 24hr Old Rainfall=6.00"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 299HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Reach 62R: L42 Inflow Outflow Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)28 26 24 22 20 18 16 14 12 10 8 6 4 2 0 Inflow Area=4.200 ac Avg. Flow Depth=2.00' Max Vel=6.29 fps 24.0" Round Pipe n=0.012 L=200.0' S=0.0050 '/' Capacity=17.33 cfs 26.48 cfs 18.48 cfs Type II 24-hr 100y 24hr Old Rainfall=6.00"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 300HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Stage-Area-Storage for Reach 62R: L42 Elevation (feet) End-Area (sq-ft) Storage (cubic-feet) 893.00 0.0 0 893.02 0.0 1 893.04 0.0 3 893.06 0.0 5 893.08 0.0 8 893.10 0.1 12 893.12 0.1 15 893.14 0.1 19 893.16 0.1 24 893.18 0.1 28 893.20 0.2 33 893.22 0.2 38 893.24 0.2 43 893.26 0.2 48 893.28 0.3 53 893.30 0.3 59 893.32 0.3 65 893.34 0.4 71 893.36 0.4 77 893.38 0.4 83 893.40 0.4 89 893.42 0.5 96 893.44 0.5 102 893.46 0.5 109 893.48 0.6 116 893.50 0.6 123 893.52 0.6 130 893.54 0.7 137 893.56 0.7 144 893.58 0.8 151 893.60 0.8 159 893.62 0.8 166 893.64 0.9 173 893.66 0.9 181 893.68 0.9 188 893.70 1.0 196 893.72 1.0 204 893.74 1.1 211 893.76 1.1 219 893.78 1.1 227 893.80 1.2 235 893.82 1.2 243 893.84 1.3 250 893.86 1.3 258 893.88 1.3 266 893.90 1.4 274 893.92 1.4 282 893.94 1.5 290 893.96 1.5 298 893.98 1.5 306 894.00 1.6 314 894.02 1.6 322 Elevation (feet) End-Area (sq-ft) Storage (cubic-feet) 894.04 1.7 330 894.06 1.7 338 894.08 1.7 346 894.10 1.8 354 894.12 1.8 362 894.14 1.8 370 894.16 1.9 378 894.18 1.9 386 894.20 2.0 394 894.22 2.0 401 894.24 2.0 409 894.26 2.1 417 894.28 2.1 425 894.30 2.2 432 894.32 2.2 440 894.34 2.2 447 894.36 2.3 455 894.38 2.3 462 894.40 2.3 470 894.42 2.4 477 894.44 2.4 484 894.46 2.5 491 894.48 2.5 499 894.50 2.5 505 894.52 2.6 512 894.54 2.6 519 894.56 2.6 526 894.58 2.7 532 894.60 2.7 539 894.62 2.7 545 894.64 2.8 551 894.66 2.8 557 894.68 2.8 563 894.70 2.8 569 894.72 2.9 575 894.74 2.9 580 894.76 2.9 586 894.78 3.0 591 894.80 3.0 596 894.82 3.0 600 894.84 3.0 605 894.86 3.0 609 894.88 3.1 613 894.90 3.1 617 894.92 3.1 620 894.94 3.1 623 894.96 3.1 625 894.98 3.1 627 895.00 3.1 628 Type II 24-hr 100y 24hr Old Rainfall=6.00"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 301HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Pond 2P: Wetland 2 Inflow Area = 15.783 ac, 4.63% Impervious, Inflow Depth = 3.76" for 100y 24hr Old event Inflow = 54.35 cfs @ 12.20 hrs, Volume= 4.940 af Outflow = 52.53 cfs @ 12.25 hrs, Volume= 4.940 af, Atten= 3%, Lag= 2.9 min Primary = 52.53 cfs @ 12.25 hrs, Volume= 4.940 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 909.76' @ 12.25 hrs Surf.Area= 60,289 sf Storage= 11,210 cf Plug-Flow detention time= 5.8 min calculated for 4.940 af (100% of inflow) Center-of-Mass det. time= 5.8 min ( 827.1 - 821.3 ) Volume Invert Avail.Storage Storage Description #1 909.50' 137,271 cf Custom Stage Data (Prismatic) Listed below (Recalc) Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 909.50 25,770 0 0 910.00 92,020 29,448 29,448 911.00 123,627 107,824 137,271 Device Routing Invert Outlet Devices #1 Primary 909.50'Asymmetrical Weir, C= 3.27 Offset (feet) 0.00 45.00 95.00 196.00 241.00 301.00 Height (feet) 1.50 0.50 0.00 0.00 0.50 1.50 Primary OutFlow Max=52.51 cfs @ 12.25 hrs HW=909.76' TW=907.40' (Dynamic Tailwater) 1=Asymmetrical Weir (Weir Controls 52.51 cfs @ 1.34 fps) Type II 24-hr 100y 24hr Old Rainfall=6.00"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 302HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Pond 2P: Wetland 2 Inflow Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)60 55 50 45 40 35 30 25 20 15 10 5 0 Inflow Area=15.783 ac Peak Elev=909.76' Storage=11,210 cf 54.35 cfs 52.53 cfs Type II 24-hr 100y 24hr Old Rainfall=6.00"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 303HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Stage-Area-Storage for Pond 2P: Wetland 2 Elevation (feet) Surface (sq-ft) Storage (cubic-feet) 909.50 25,770 0 909.52 28,420 542 909.54 31,070 1,137 909.56 33,720 1,785 909.58 36,370 2,486 909.60 39,020 3,240 909.62 41,670 4,046 909.64 44,320 4,906 909.66 46,970 5,819 909.68 49,620 6,785 909.70 52,270 7,804 909.72 54,920 8,876 909.74 57,570 10,001 909.76 60,220 11,179 909.78 62,870 12,410 909.80 65,520 13,693 909.82 68,170 15,030 909.84 70,820 16,420 909.86 73,470 17,863 909.88 76,120 19,359 909.90 78,770 20,908 909.92 81,420 22,510 909.94 84,070 24,165 909.96 86,720 25,873 909.98 89,370 27,634 910.00 92,020 29,448 910.02 92,652 31,294 910.04 93,284 33,154 910.06 93,916 35,026 910.08 94,549 36,910 910.10 95,181 38,808 910.12 95,813 40,717 910.14 96,445 42,640 910.16 97,077 44,575 910.18 97,709 46,523 910.20 98,341 48,484 910.22 98,974 50,457 910.24 99,606 52,443 910.26 100,238 54,441 910.28 100,870 56,452 910.30 101,502 58,476 910.32 102,134 60,512 910.34 102,766 62,561 910.36 103,399 64,623 910.38 104,031 66,697 910.40 104,663 68,784 910.42 105,295 70,884 910.44 105,927 72,996 910.46 106,559 75,121 910.48 107,191 77,258 910.50 107,824 79,408 910.52 108,456 81,571 Elevation (feet) Surface (sq-ft) Storage (cubic-feet) 910.54 109,088 83,747 910.56 109,720 85,935 910.58 110,352 88,135 910.60 110,984 90,349 910.62 111,616 92,575 910.64 112,248 94,813 910.66 112,881 97,065 910.68 113,513 99,329 910.70 114,145 101,605 910.72 114,777 103,894 910.74 115,409 106,196 910.76 116,041 108,511 910.78 116,673 110,838 910.80 117,306 113,178 910.82 117,938 115,530 910.84 118,570 117,895 910.86 119,202 120,273 910.88 119,834 122,663 910.90 120,466 125,066 910.92 121,098 127,482 910.94 121,731 129,910 910.96 122,363 132,351 910.98 122,995 134,805 911.00 123,627 137,271 Type II 24-hr 100y 24hr Old Rainfall=6.00"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 304HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Pond 3P: Basin 3 (Wetland 1) Inflow Area = 28.642 ac, 2.55% Impervious, Inflow Depth = 3.69" for 100y 24hr Old event Inflow = 95.61 cfs @ 12.14 hrs, Volume= 8.810 af Outflow = 84.48 cfs @ 12.24 hrs, Volume= 8.356 af, Atten= 12%, Lag= 6.1 min Primary = 84.48 cfs @ 12.24 hrs, Volume= 8.356 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 907.40' @ 12.24 hrs Surf.Area= 78,411 sf Storage= 74,025 cf Plug-Flow detention time= 90.8 min calculated for 8.356 af (95% of inflow) Center-of-Mass det. time= 61.5 min ( 884.4 - 823.0 ) Volume Invert Avail.Storage Storage Description #1 905.50' 251,588 cf Custom Stage Data (Prismatic) Listed below (Recalc) Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 905.50 0 0 0 906.00 18,685 4,671 4,671 907.00 63,607 41,146 45,817 908.00 100,875 82,241 128,058 909.00 146,184 123,530 251,588 Device Routing Invert Outlet Devices #1 Primary 906.50'Asymmetrical Weir, C= 3.27 Offset (feet) 0.00 28.00 115.00 135.00 155.00 184.00 204.00 Height (feet) 2.50 1.50 0.50 0.00 0.50 1.50 2.50 Primary OutFlow Max=84.47 cfs @ 12.24 hrs HW=907.40' TW=899.91' (Dynamic Tailwater) 1=Asymmetrical Weir (Weir Controls 84.47 cfs @ 1.56 fps) Type II 24-hr 100y 24hr Old Rainfall=6.00"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 305HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Pond 3P: Basin 3 (Wetland 1) Inflow Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)105 100 95 90 85 80 75 70 65 60 55 50 45 40 35 30 25 20 15 10 5 0 Inflow Area=28.642 ac Peak Elev=907.40' Storage=74,025 cf 95.61 cfs 84.48 cfs Type II 24-hr 100y 24hr Old Rainfall=6.00"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 306HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Stage-Area-Storage for Pond 3P: Basin 3 (Wetland 1) Elevation (feet) Surface (sq-ft) Storage (cubic-feet) 905.50 0 0 905.55 1,868 47 905.60 3,737 187 905.65 5,605 420 905.70 7,474 747 905.75 9,343 1,168 905.80 11,211 1,682 905.85 13,080 2,289 905.90 14,948 2,990 905.95 16,817 3,784 906.00 18,685 4,671 906.05 20,931 5,662 906.10 23,177 6,764 906.15 25,423 7,979 906.20 27,669 9,307 906.25 29,916 10,746 906.30 32,162 12,298 906.35 34,408 13,962 906.40 36,654 15,739 906.45 38,900 17,628 906.50 41,146 19,629 906.55 43,392 21,742 906.60 45,638 23,968 906.65 47,884 26,306 906.70 50,130 28,757 906.75 52,377 31,319 906.80 54,623 33,994 906.85 56,869 36,782 906.90 59,115 39,681 906.95 61,361 42,693 907.00 63,607 45,817 907.05 65,470 49,044 907.10 67,334 52,364 907.15 69,197 55,778 907.20 71,061 59,284 907.25 72,924 62,884 907.30 74,787 66,576 907.35 76,651 70,362 907.40 78,514 74,241 907.45 80,378 78,214 907.50 82,241 82,279 907.55 84,104 86,438 907.60 85,968 90,690 907.65 87,831 95,035 907.70 89,695 99,473 907.75 91,558 104,004 907.80 93,421 108,629 907.85 95,285 113,346 907.90 97,148 118,157 907.95 99,012 123,061 908.00 100,875 128,058 908.05 103,140 133,159 Elevation (feet) Surface (sq-ft) Storage (cubic-feet) 908.10 105,406 138,372 908.15 107,671 143,699 908.20 109,937 149,139 908.25 112,202 154,693 908.30 114,468 160,360 908.35 116,733 166,140 908.40 118,999 172,033 908.45 121,264 178,040 908.50 123,530 184,159 908.55 125,795 190,392 908.60 128,060 196,739 908.65 130,326 203,199 908.70 132,591 209,771 908.75 134,857 216,458 908.80 137,122 223,257 908.85 139,388 230,170 908.90 141,653 237,196 908.95 143,919 244,335 909.00 146,184 251,588 Type II 24-hr 100y 24hr Old Rainfall=6.00"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 307HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Pond 4P: Powers Culvert Inflow Area = 34.806 ac, 2.10% Impervious, Inflow Depth = 3.51" for 100y 24hr Old event Inflow = 101.16 cfs @ 12.21 hrs, Volume= 10.175 af Outflow = 97.71 cfs @ 12.26 hrs, Volume= 10.175 af, Atten= 3%, Lag= 3.4 min Primary = 97.71 cfs @ 12.26 hrs, Volume= 10.175 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 899.92' @ 12.26 hrs Surf.Area= 7,821 sf Storage= 7,587 cf Plug-Flow detention time= (not calculated: outflow precedes inflow) Center-of-Mass det. time= 0.5 min ( 874.3 - 873.8 ) Volume Invert Avail.Storage Storage Description #1 895.70' 165,537 cf Custom Stage Data (Prismatic) Listed below (Recalc) Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 895.70 1 0 0 896.00 12 2 2 898.00 877 889 891 899.00 2,760 1,819 2,709 900.00 8,250 5,505 8,214 901.00 16,910 12,580 20,794 902.00 26,632 21,771 42,565 903.00 36,506 31,569 74,134 904.00 44,700 40,603 114,737 905.00 56,900 50,800 165,537 Device Routing Invert Outlet Devices #1 Primary 895.71'54.0" Round Culvert L= 191.0' RCP, end-section conforming to fill, Ke= 0.500 Inlet / Outlet Invert= 895.71' / 894.53' S= 0.0062 '/' Cc= 0.900 n= 0.013 Concrete pipe, straight & clean, Flow Area= 15.90 sf Primary OutFlow Max=97.69 cfs @ 12.26 hrs HW=899.92' TW=0.00' (Dynamic Tailwater) 1=Culvert (Barrel Controls 97.69 cfs @ 8.19 fps) Type II 24-hr 100y 24hr Old Rainfall=6.00"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 308HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Pond 4P: Powers Culvert Inflow Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)110 105 100 95 90 85 80 75 70 65 60 55 50 45 40 35 30 25 20 15 10 5 0 Inflow Area=34.806 ac Peak Elev=899.92' Storage=7,587 cf 54.0" Round Culvert n=0.013 L=191.0' S=0.0062 '/' 101.16 cfs 97.71 cfs Type II 24-hr 100y 24hr Old Rainfall=6.00"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 309HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Stage-Area-Storage for Pond 4P: Powers Culvert Elevation (feet) Surface (sq-ft) Storage (cubic-feet) 895.70 1 0 895.80 5 0 895.90 8 1 896.00 12 2 896.10 55 5 896.20 99 13 896.30 142 25 896.40 185 41 896.50 228 62 896.60 272 87 896.70 315 116 896.80 358 150 896.90 401 188 897.00 445 230 897.10 488 277 897.20 531 328 897.30 574 383 897.40 618 443 897.50 661 507 897.60 704 575 897.70 747 647 897.80 791 724 897.90 834 805 898.00 877 891 898.10 1,065 988 898.20 1,254 1,104 898.30 1,442 1,239 898.40 1,630 1,392 898.50 1,819 1,565 898.60 2,007 1,756 898.70 2,195 1,966 898.80 2,383 2,195 898.90 2,572 2,443 899.00 2,760 2,709 899.10 3,309 3,013 899.20 3,858 3,371 899.30 4,407 3,785 899.40 4,956 4,253 899.50 5,505 4,776 899.60 6,054 5,354 899.70 6,603 5,987 899.80 7,152 6,674 899.90 7,701 7,417 900.00 8,250 8,214 900.10 9,116 9,083 900.20 9,982 10,038 900.30 10,848 11,079 900.40 11,714 12,207 900.50 12,580 13,422 900.60 13,446 14,723 900.70 14,312 16,111 900.80 15,178 17,586 Elevation (feet) Surface (sq-ft) Storage (cubic-feet) 900.90 16,044 19,147 901.00 16,910 20,794 901.10 17,882 22,534 901.20 18,854 24,371 901.30 19,827 26,305 901.40 20,799 28,336 901.50 21,771 30,465 901.60 22,743 32,690 901.70 23,715 35,013 901.80 24,688 37,433 901.90 25,660 39,951 902.00 26,632 42,565 902.10 27,619 45,278 902.20 28,607 48,089 902.30 29,594 50,999 902.40 30,582 54,008 902.50 31,569 57,116 902.60 32,556 60,322 902.70 33,544 63,627 902.80 34,531 67,031 902.90 35,519 70,533 903.00 36,506 74,134 903.10 37,325 77,826 903.20 38,145 81,600 903.30 38,964 85,455 903.40 39,784 89,392 903.50 40,603 93,412 903.60 41,422 97,513 903.70 42,242 101,696 903.80 43,061 105,961 903.90 43,881 110,308 904.00 44,700 114,737 904.10 45,920 119,268 904.20 47,140 123,921 904.30 48,360 128,696 904.40 49,580 133,593 904.50 50,800 138,612 904.60 52,020 143,753 904.70 53,240 149,016 904.80 54,460 154,401 904.90 55,680 159,908 905.00 56,900 165,537 Type II 24-hr 100y 24hr Old Rainfall=6.00"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 310HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Pond 61P: Englewood Pond [87] Warning: Oscillations may require smaller dt or Finer Routing (severity=5) [62] Hint: Exceeded Reach 61R OUTLET depth by 2.06' @ 13.48 hrs [63] Warning: Exceeded Reach 62R INLET depth by 1.51' @ 13.05 hrs Inflow Area = 67.893 ac, 1.08% Impervious, Inflow Depth = 3.71" for 100y 24hr Old event Inflow = 230.21 cfs @ 12.04 hrs, Volume= 20.978 af Outflow = 39.87 cfs @ 12.91 hrs, Volume= 20.916 af, Atten= 83%, Lag= 52.1 min Primary = 39.87 cfs @ 12.91 hrs, Volume= 20.916 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 894.91' @ 12.91 hrs Surf.Area= 167,142 sf Storage= 442,293 cf Plug-Flow detention time= 737.5 min calculated for 20.916 af (100% of inflow) Center-of-Mass det. time= 730.4 min ( 1,572.6 - 842.2 ) Volume Invert Avail.Storage Storage Description #1 892.00' 1,031,055 cf Custom Stage Data (Prismatic) Listed below (Recalc) Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 892.00 136,580 0 0 895.00 168,060 456,960 456,960 898.00 214,670 574,095 1,031,055 Device Routing Invert Outlet Devices #1 Primary 892.00'42.0" Round Culvert L= 29.0' RCP, square edge headwall, Ke= 0.500 Inlet / Outlet Invert= 892.00' / 891.71' S= 0.0100 '/' Cc= 0.900 n= 0.013 Concrete pipe, straight & clean, Flow Area= 9.62 sf #2 Device 1 887.63'42.0" Round Culvert L= 13.0' RCP, end-section conforming to fill, Ke= 0.500 Inlet / Outlet Invert= 887.50' / 887.63' S= -0.0100 '/' Cc= 0.900 n= 0.013 Concrete pipe, straight & clean, Flow Area= 9.62 sf Primary OutFlow Max=39.87 cfs @ 12.91 hrs HW=894.91' TW=891.58' (Dynamic Tailwater) 1=Culvert (Barrel Controls 39.87 cfs @ 6.31 fps) 2=Culvert (Passes 39.87 cfs of 79.06 cfs potential flow) Type II 24-hr 100y 24hr Old Rainfall=6.00"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 311HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Pond 61P: Englewood Pond Inflow Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)240 220 200 180 160 140 120 100 80 60 40 20 0 Inflow Area=67.893 ac Peak Elev=894.91' Storage=442,293 cf 230.21 cfs 39.87 cfs Type II 24-hr 100y 24hr Old Rainfall=6.00"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 312HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Stage-Area-Storage for Pond 61P: Englewood Pond Elevation (feet) Surface (sq-ft) Storage (cubic-feet) 892.00 136,580 0 892.10 137,629 13,710 892.20 138,679 27,526 892.30 139,728 41,446 892.40 140,777 55,471 892.50 141,827 69,602 892.60 142,876 83,837 892.70 143,925 98,177 892.80 144,975 112,622 892.90 146,024 127,172 893.00 147,073 141,827 893.10 148,123 156,586 893.20 149,172 171,451 893.30 150,221 186,421 893.40 151,271 201,495 893.50 152,320 216,675 893.60 153,369 231,959 893.70 154,419 247,349 893.80 155,468 262,843 893.90 156,517 278,442 894.00 157,567 294,147 894.10 158,616 309,956 894.20 159,665 325,870 894.30 160,715 341,889 894.40 161,764 358,013 894.50 162,813 374,242 894.60 163,863 390,575 894.70 164,912 407,014 894.80 165,961 423,558 894.90 167,011 440,206 895.00 168,060 456,960 895.10 169,614 473,844 895.20 171,167 490,883 895.30 172,721 508,077 895.40 174,275 525,427 895.50 175,828 542,932 895.60 177,382 560,593 895.70 178,936 578,408 895.80 180,489 596,380 895.90 182,043 614,506 896.00 183,597 632,788 896.10 185,150 651,226 896.20 186,704 669,818 896.30 188,258 688,566 896.40 189,811 707,470 896.50 191,365 726,529 896.60 192,919 745,743 896.70 194,472 765,112 896.80 196,026 784,637 896.90 197,580 804,318 897.00 199,133 824,153 897.10 200,687 844,144 Elevation (feet) Surface (sq-ft) Storage (cubic-feet) 897.20 202,241 864,291 897.30 203,794 884,592 897.40 205,348 905,050 897.50 206,902 925,662 897.60 208,455 946,430 897.70 210,009 967,353 897.80 211,563 988,432 897.90 213,116 1,009,666 898.00 214,670 1,031,055 Type II 24-hr 100y 24hr Old Rainfall=6.00"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 313HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Pond 65P: Fresh MDW Inflow Area = 12.140 ac, 3.62% Impervious, Inflow Depth = 3.47" for 100y 24hr Old event Inflow = 52.86 cfs @ 12.02 hrs, Volume= 3.506 af Outflow = 9.48 cfs @ 12.41 hrs, Volume= 3.352 af, Atten= 82%, Lag= 23.9 min Primary = 9.48 cfs @ 12.41 hrs, Volume= 3.352 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 899.14' @ 12.41 hrs Surf.Area= 26,142 sf Storage= 70,111 cf Plug-Flow detention time= 167.5 min calculated for 3.352 af (96% of inflow) Center-of-Mass det. time= 142.0 min ( 938.8 - 796.8 ) Volume Invert Avail.Storage Storage Description #1 896.00' 123,320 cf Custom Stage Data (Prismatic) Listed below (Recalc) Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 896.00 18,540 0 0 900.00 28,230 93,540 93,540 901.00 31,330 29,780 123,320 Device Routing Invert Outlet Devices #1 Primary 892.35'12.0" Round Culvert L= 35.0' RCP, square edge headwall, Ke= 0.500 Inlet / Outlet Invert= 892.00' / 892.35' S= -0.0100 '/' Cc= 0.900 n= 0.012, Flow Area= 0.79 sf #2 Device 1 896.35'33.0" Round Culvert L= 69.0' RCP, end-section conforming to fill, Ke= 0.500 Inlet / Outlet Invert= 896.35' / 896.01' S= 0.0049 '/' Cc= 0.900 n= 0.012 Concrete pipe, finished, Flow Area= 5.94 sf Primary OutFlow Max=9.48 cfs @ 12.41 hrs HW=899.14' TW=891.20' (Dynamic Tailwater) 1=Culvert (Inlet Controls 9.48 cfs @ 12.07 fps) 2=Culvert (Passes 9.48 cfs of 28.95 cfs potential flow) Type II 24-hr 100y 24hr Old Rainfall=6.00"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 314HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Pond 65P: Fresh MDW Inflow Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)55 50 45 40 35 30 25 20 15 10 5 0 Inflow Area=12.140 ac Peak Elev=899.14' Storage=70,111 cf 52.86 cfs 9.48 cfs Type II 24-hr 100y 24hr Old Rainfall=6.00"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 315HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Stage-Area-Storage for Pond 65P: Fresh MDW Elevation (feet) Surface (sq-ft) Storage (cubic-feet) 896.00 18,540 0 896.05 18,661 930 896.10 18,782 1,866 896.15 18,903 2,808 896.20 19,025 3,756 896.25 19,146 4,711 896.30 19,267 5,671 896.35 19,388 6,637 896.40 19,509 7,610 896.45 19,630 8,588 896.50 19,751 9,573 896.55 19,872 10,563 896.60 19,994 11,560 896.65 20,115 12,563 896.70 20,236 13,572 896.75 20,357 14,586 896.80 20,478 15,607 896.85 20,599 16,634 896.90 20,720 17,667 896.95 20,841 18,706 897.00 20,963 19,751 897.05 21,084 20,802 897.10 21,205 21,860 897.15 21,326 22,923 897.20 21,447 23,992 897.25 21,568 25,068 897.30 21,689 26,149 897.35 21,810 27,237 897.40 21,931 28,330 897.45 22,053 29,430 897.50 22,174 30,535 897.55 22,295 31,647 897.60 22,416 32,765 897.65 22,537 33,889 897.70 22,658 35,019 897.75 22,779 36,154 897.80 22,900 37,296 897.85 23,022 38,445 897.90 23,143 39,599 897.95 23,264 40,759 898.00 23,385 41,925 898.05 23,506 43,097 898.10 23,627 44,276 898.15 23,748 45,460 898.20 23,870 46,650 898.25 23,991 47,847 898.30 24,112 49,050 898.35 24,233 50,258 898.40 24,354 51,473 898.45 24,475 52,694 898.50 24,596 53,920 898.55 24,717 55,153 Elevation (feet) Surface (sq-ft) Storage (cubic-feet) 898.60 24,839 56,392 898.65 24,960 57,637 898.70 25,081 58,888 898.75 25,202 60,145 898.80 25,323 61,408 898.85 25,444 62,677 898.90 25,565 63,953 898.95 25,686 65,234 899.00 25,808 66,521 899.05 25,929 67,815 899.10 26,050 69,114 899.15 26,171 70,420 899.20 26,292 71,731 899.25 26,413 73,049 899.30 26,534 74,373 899.35 26,655 75,702 899.40 26,776 77,038 899.45 26,898 78,380 899.50 27,019 79,728 899.55 27,140 81,082 899.60 27,261 82,442 899.65 27,382 83,808 899.70 27,503 85,180 899.75 27,624 86,558 899.80 27,745 87,942 899.85 27,867 89,333 899.90 27,988 90,729 899.95 28,109 92,132 900.00 28,230 93,540 900.05 28,385 94,955 900.10 28,540 96,379 900.15 28,695 97,809 900.20 28,850 99,248 900.25 29,005 100,694 900.30 29,160 102,148 900.35 29,315 103,610 900.40 29,470 105,080 900.45 29,625 106,557 900.50 29,780 108,043 900.55 29,935 109,535 900.60 30,090 111,036 900.65 30,245 112,544 900.70 30,400 114,061 900.75 30,555 115,584 900.80 30,710 117,116 900.85 30,865 118,655 900.90 31,020 120,202 900.95 31,175 121,757 901.00 31,330 123,320 Type II 24-hr 100y 24hr Old Rainfall=6.00"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 316HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Pond 68P: East MNDOT M10 Wetland Inflow Area = 97.033 ac, 1.21% Impervious, Inflow Depth = 3.56" for 100y 24hr Old event Inflow = 103.25 cfs @ 12.03 hrs, Volume= 28.780 af Outflow = 3.67 cfs @ 24.55 hrs, Volume= 25.406 af, Atten= 96%, Lag= 751.7 min Primary = 3.67 cfs @ 24.55 hrs, Volume= 25.406 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 893.37' @ 24.55 hrs Surf.Area= 386,089 sf Storage= 901,172 cf Plug-Flow detention time= 3,226.6 min calculated for 25.406 af (88% of inflow) Center-of-Mass det. time= 2,815.5 min ( 4,197.8 - 1,382.3 ) Volume Invert Avail.Storage Storage Description #1 890.00' 1,574,445 cf Custom Stage Data (Prismatic) Listed below (Recalc) Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 890.00 68,660 0 0 891.00 198,790 133,725 133,725 892.00 340,250 269,520 403,245 895.00 440,550 1,171,200 1,574,445 Device Routing Invert Outlet Devices #1 Primary 890.30'18.0" Round Culvert L= 155.0' RCP, square edge headwall, Ke= 0.500 Inlet / Outlet Invert= 890.30' / 889.53' S= 0.0050 '/' Cc= 0.900 n= 0.013 Concrete pipe, straight & clean, Flow Area= 1.77 sf #2 Device 1 891.00'10.0" Vert. Orifice/Grate C= 0.600 #3 Device 2 890.50'18.0" Round Culvert L= 40.0' RCP, end-section conforming to fill, Ke= 0.500 Inlet / Outlet Invert= 890.30' / 890.50' S= -0.0050 '/' Cc= 0.900 n= 0.013 Concrete pipe, straight & clean, Flow Area= 1.77 sf Primary OutFlow Max=3.67 cfs @ 24.55 hrs HW=893.37' (Free Discharge) 1=Culvert (Passes 3.67 cfs of 10.42 cfs potential flow) 2=Orifice/Grate (Orifice Controls 3.67 cfs @ 6.73 fps) 3=Culvert (Passes 3.67 cfs of 11.90 cfs potential flow) Type II 24-hr 100y 24hr Old Rainfall=6.00"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 317HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Pond 68P: East MNDOT M10 Wetland Inflow Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)115 110 105 100 95 90 85 80 75 70 65 60 55 50 45 40 35 30 25 20 15 10 5 0 Inflow Area=97.033 ac Peak Elev=893.37' Storage=901,172 cf 103.25 cfs 3.67 cfs Type II 24-hr 100y 24hr Old Rainfall=6.00"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 318HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Stage-Area-Storage for Pond 68P: East MNDOT M10 Wetland Elevation (feet) Surface (sq-ft) Storage (cubic-feet) 890.00 68,660 0 890.05 75,166 3,596 890.10 81,673 7,517 890.15 88,179 11,763 890.20 94,686 16,335 890.25 101,193 21,232 890.30 107,699 26,454 890.35 114,206 32,001 890.40 120,712 37,874 890.45 127,219 44,073 890.50 133,725 50,596 890.55 140,231 57,445 890.60 146,738 64,619 890.65 153,244 72,119 890.70 159,751 79,944 890.75 166,258 88,094 890.80 172,764 96,570 890.85 179,271 105,370 890.90 185,777 114,497 890.95 192,284 123,948 891.00 198,790 133,725 891.05 205,863 143,841 891.10 212,936 154,311 891.15 220,009 165,135 891.20 227,082 176,312 891.25 234,155 187,843 891.30 241,228 199,728 891.35 248,301 211,966 891.40 255,374 224,558 891.45 262,447 237,503 891.50 269,520 250,803 891.55 276,593 264,455 891.60 283,666 278,462 891.65 290,739 292,822 891.70 297,812 307,536 891.75 304,885 322,603 891.80 311,958 338,024 891.85 319,031 353,799 891.90 326,104 369,927 891.95 333,177 386,409 892.00 340,250 403,245 892.05 341,922 420,299 892.10 343,593 437,437 892.15 345,265 454,659 892.20 346,937 471,964 892.25 348,608 489,352 892.30 350,280 506,824 892.35 351,952 524,380 892.40 353,623 542,020 892.45 355,295 559,743 892.50 356,967 577,549 892.55 358,638 595,439 Elevation (feet) Surface (sq-ft) Storage (cubic-feet) 892.60 360,310 613,413 892.65 361,982 631,470 892.70 363,653 649,611 892.75 365,325 667,836 892.80 366,997 686,144 892.85 368,668 704,535 892.90 370,340 723,010 892.95 372,012 741,569 893.00 373,683 760,212 893.05 375,355 778,938 893.10 377,027 797,747 893.15 378,698 816,640 893.20 380,370 835,617 893.25 382,042 854,677 893.30 383,713 873,821 893.35 385,385 893,049 893.40 387,057 912,360 893.45 388,728 931,754 893.50 390,400 951,233 893.55 392,072 970,794 893.60 393,743 990,440 893.65 395,415 1,010,169 893.70 397,087 1,029,981 893.75 398,758 1,049,877 893.80 400,430 1,069,857 893.85 402,102 1,089,920 893.90 403,773 1,110,067 893.95 405,445 1,130,298 894.00 407,117 1,150,612 894.05 408,788 1,171,009 894.10 410,460 1,191,491 894.15 412,132 1,212,055 894.20 413,803 1,232,704 894.25 415,475 1,253,436 894.30 417,147 1,274,251 894.35 418,818 1,295,150 894.40 420,490 1,316,133 894.45 422,162 1,337,199 894.50 423,833 1,358,349 894.55 425,505 1,379,583 894.60 427,177 1,400,900 894.65 428,848 1,422,300 894.70 430,520 1,443,785 894.75 432,192 1,465,352 894.80 433,863 1,487,004 894.85 435,535 1,508,739 894.90 437,207 1,530,557 894.95 438,878 1,552,459 895.00 440,550 1,574,445 5aS To Lyman - North 5oS From Lyman 5S Northwest 6oS Offsite West - North 6S West - North 7oS Offsite West - South 7S West Woods 8S South - Central to Wetland 4 9.1S East Woods 9.2S Northeast Woods 9.3S South 9.4S Southeast 10S Southwest 29oS North Offsite 36oS Southwest Offsite 3R Lower Wetland 6 4R Southwest Drainage 5R Upper Wetland 6 6R Bluff Creek Drainage 8R South Drainage 9R Wetland 4 Channel 6P Wetland 3 7P West - South 8P Wetland 4 Routing Diagram for Avienda - Existing Prepared by LANDFORM, Printed 8/23/2018 HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Subcat Reach Pond Link MSE 24-hr 3 1-Year A Rainfall=2.47"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 2HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Time span=0.00-360.00 hrs, dt=0.01 hrs, 36001 points Runoff by SCS TR-20 method, UH=SCS, Weighted-Q Reach routing by Dyn-Stor-Ind method - Pond routing by Dyn-Stor-Ind method Runoff Area=67,165 sf 0.00% Impervious Runoff Depth=0.19"Subcatchment 5aS: To Lyman - North Flow Length=115' Tc=7.9 min CN=61 Runoff=0.19 cfs 0.024 af Runoff Area=10,548 sf 0.00% Impervious Runoff Depth=0.77"Subcatchment 5oS: From Lyman Flow Length=57' Slope=0.3330 '/' Tc=5.0 min CN=78 Runoff=0.36 cfs 0.016 af Runoff Area=627,245 sf 0.00% Impervious Runoff Depth=0.77"Subcatchment 5S: Northwest Flow Length=1,040' Tc=15.9 min CN=WQ Runoff=13.25 cfs 0.921 af Runoff Area=115,865 sf 17.26% Impervious Runoff Depth=0.74"Subcatchment 6oS: Offsite West - North Flow Length=431' Tc=7.3 min UI Adjusted CN=WQ Runoff=2.69 cfs 0.164 af Runoff Area=225,525 sf 0.00% Impervious Runoff Depth=0.94"Subcatchment 6S: West - North Flow Length=531' Tc=10.6 min CN=WQ Runoff=7.10 cfs 0.406 af Runoff Area=58,180 sf 4.64% Impervious Runoff Depth=0.81"Subcatchment 7oS: Offsite West - South Flow Length=37' Slope=0.1620 '/' Tc=5.0 min CN=WQ Runoff=2.05 cfs 0.090 af Runoff Area=137,060 sf 0.00% Impervious Runoff Depth=0.18"Subcatchment 7S: West Woods Flow Length=268' Tc=11.1 min CN=WQ Runoff=0.54 cfs 0.048 af Runoff Area=1,300,770 sf 0.00% Impervious Runoff Depth=0.54"Subcatchment 8S: South - Central to Flow Length=1,321' Tc=24.5 min CN=WQ Runoff=14.74 cfs 1.352 af Runoff Area=140,359 sf 0.00% Impervious Runoff Depth=0.08"Subcatchment 9.1S: East Woods Flow Length=530' Tc=15.2 min CN=55 Runoff=0.06 cfs 0.021 af Runoff Area=88,007 sf 0.00% Impervious Runoff Depth=0.17"Subcatchment 9.2S: Northeast Woods Flow Length=623' Tc=19.5 min CN=WQ Runoff=0.23 cfs 0.029 af Runoff Area=258,057 sf 0.00% Impervious Runoff Depth=0.82"Subcatchment 9.3S: South Flow Length=550' Tc=10.3 min CN=WQ Runoff=7.26 cfs 0.404 af Runoff Area=323,827 sf 0.00% Impervious Runoff Depth=0.81"Subcatchment 9.4S: Southeast Flow Length=912' Tc=16.5 min CN=WQ Runoff=7.14 cfs 0.500 af Runoff Area=165,080 sf 0.00% Impervious Runoff Depth=0.08"Subcatchment 10S: Southwest Flow Length=270' Tc=18.3 min CN=55 Runoff=0.07 cfs 0.024 af Runoff Area=1,162 sf 0.00% Impervious Runoff Depth=0.13"Subcatchment 29oS: North Offsite Tc=10.0 min CN=58 Runoff=0.00 cfs 0.000 af Runoff Area=1,628 sf 0.00% Impervious Runoff Depth=0.13"Subcatchment 36oS: Southwest Offsite Tc=10.0 min CN=58 Runoff=0.00 cfs 0.000 af Avg. Flow Depth=0.60' Max Vel=0.97 fps Inflow=13.57 cfs 0.961 afReach 3R: Lower Wetland 6 n=0.050 L=187.0' S=0.0053 '/' Capacity=3,072.14 cfs Outflow=12.96 cfs 0.961 af MSE 24-hr 3 1-Year A Rainfall=2.47"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 3HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Inflow=5.90 cfs 0.732 afReach 4R: Southwest Drainage Outflow=5.90 cfs 0.732 af Inflow=13.38 cfs 0.936 afReach 5R: Upper Wetland 6 Outflow=13.38 cfs 0.936 af Inflow=43.46 cfs 3.997 afReach 6R: Bluff Creek Drainage Outflow=43.46 cfs 3.997 af Inflow=24.83 cfs 2.304 afReach 8R: South Drainage Outflow=24.83 cfs 2.304 af Inflow=14.93 cfs 1.380 afReach 9R: Wetland 4 Channel Outflow=14.93 cfs 1.380 af Peak Elev=920.87' Storage=2,964 cf Inflow=9.51 cfs 0.569 afPond 6P: Wetland 3 Outflow=7.41 cfs 0.569 af Peak Elev=908.59' Storage=3,823 cf Inflow=8.74 cfs 0.708 afPond 7P: West - South Outflow=5.88 cfs 0.708 af Peak Elev=884.53' Storage=769 cf Inflow=14.74 cfs 1.352 afPond 8P: Wetland 4 Outflow=14.72 cfs 1.351 af Total Runoff Area = 80.819 ac Runoff Volume = 3.998 af Average Runoff Depth = 0.59" 99.36% Pervious = 80.298 ac 0.64% Impervious = 0.521 ac MSE 24-hr 3 1-Year A Rainfall=2.47"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 4HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 5aS: To Lyman - North Runoff = 0.19 cfs @ 12.22 hrs, Volume= 0.024 af, Depth= 0.19" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MSE 24-hr 3 1-Year A Rainfall=2.47" Area (sf) CN Description 67,165 61 >75% Grass cover, Good, HSG B 67,165 61 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 7.7 75 0.0600 0.16 Sheet Flow, Grass: Dense n= 0.240 P2= 2.87" 0.2 40 0.1500 2.71 Shallow Concentrated Flow, Short Grass Pasture Kv= 7.0 fps 7.9 115 Total Subcatchment 5aS: To Lyman - North Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.21 0.2 0.19 0.18 0.17 0.16 0.15 0.14 0.13 0.12 0.11 0.1 0.09 0.08 0.07 0.06 0.05 0.04 0.03 0.02 0.01 0 MSE 24-hr 3 1-Year A Rainfall=2.47" Runoff Area=67,165 sf Runoff Volume=0.024 af Runoff Depth=0.19" Flow Length=115' Tc=7.9 min CN=61 0.19 cfs MSE 24-hr 3 1-Year A Rainfall=2.47"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 5HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 5oS: From Lyman Runoff = 0.36 cfs @ 12.13 hrs, Volume= 0.016 af, Depth= 0.77" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MSE 24-hr 3 1-Year A Rainfall=2.47" Area (sf) CN Description 10,548 78 Meadow, non-grazed, HSG D 10,548 78 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 2.1 57 0.3330 0.44 Sheet Flow, Grass: Short n= 0.150 P2= 2.87" 2.9 Direct Entry, Make up to 5 minutes 5.0 57 Total Subcatchment 5oS: From Lyman Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.4 0.38 0.36 0.34 0.32 0.3 0.28 0.26 0.24 0.22 0.2 0.18 0.16 0.14 0.12 0.1 0.08 0.06 0.04 0.02 0 MSE 24-hr 3 1-Year A Rainfall=2.47" Runoff Area=10,548 sf Runoff Volume=0.016 af Runoff Depth=0.77" Flow Length=57' Slope=0.3330 '/' Tc=5.0 min CN=78 0.36 cfs MSE 24-hr 3 1-Year A Rainfall=2.47"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 6HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 5S: Northwest Runoff = 13.25 cfs @ 12.26 hrs, Volume= 0.921 af, Depth= 0.77" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MSE 24-hr 3 1-Year A Rainfall=2.47" Area (sf) CN Description 7,250 55 Woods, Good, HSG B 217,355 79 Pasture/grassland/range, Poor, HSG B 366,575 79 Pasture/grassland/range, Poor, HSG B 7,095 61 >75% Grass cover, Good, HSG B 28,970 55 Woods, Good, HSG B 627,245 Weighted Average 627,245 77 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 7.8 100 0.0300 0.21 Sheet Flow, Range n= 0.130 P2= 2.87" 4.5 419 0.0500 1.57 Shallow Concentrated Flow, Short Grass Pasture Kv= 7.0 fps 0.9 131 0.1220 2.44 Shallow Concentrated Flow, Short Grass Pasture Kv= 7.0 fps 2.7 390 0.0260 2.42 Shallow Concentrated Flow, Wetland Grassed Waterway Kv= 15.0 fps 15.9 1,040 Total MSE 24-hr 3 1-Year A Rainfall=2.47"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 7HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Subcatchment 5S: Northwest Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 MSE 24-hr 3 1-Year A Rainfall=2.47" Runoff Area=627,245 sf Runoff Volume=0.921 af Runoff Depth=0.77" Flow Length=1,040' Tc=15.9 min CN=WQ 13.25 cfs MSE 24-hr 3 1-Year A Rainfall=2.47"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 8HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 6oS: Offsite West - North Runoff = 2.69 cfs @ 12.15 hrs, Volume= 0.164 af, Depth= 0.74" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MSE 24-hr 3 1-Year A Rainfall=2.47" Area (sf) CN Adj Description 20,000 98 98 Unconnected roofs, HSG B 71,000 61 61 >75% Grass cover, Good, HSG B * 12,720 96 96 Wetland, Good, HSG D 12,145 58 58 Meadow, non-grazed, HSG B 115,865 Weighted Average 95,865 65 65 82.74% Pervious Area 20,000 98 98 17.26% Impervious Area 20,000 100.00% Unconnected Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 5.0 25 0.0200 0.08 Sheet Flow, Grass: Dense n= 0.240 P2= 2.87" 2.3 406 0.0390 2.96 Shallow Concentrated Flow, Grassed Waterway Kv= 15.0 fps 7.3 431 Total Subcatchment 6oS: Offsite West - North Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)3 2 1 0 MSE 24-hr 3 1-Year A Rainfall=2.47" Runoff Area=115,865 sf Runoff Volume=0.164 af Runoff Depth=0.74" Flow Length=431' Tc=7.3 min UI Adjusted CN=WQ 2.69 cfs MSE 24-hr 3 1-Year A Rainfall=2.47"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 9HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 6S: West - North Runoff = 7.10 cfs @ 12.19 hrs, Volume= 0.406 af, Depth= 0.94" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MSE 24-hr 3 1-Year A Rainfall=2.47" Area (sf) CN Description 2,000 77 Woods, Good, HSG D 4,000 55 Woods, Good, HSG B * 25,440 96 Wetland, Good, HSG D 194,085 79 Pasture/grassland/range, Poor, HSG B 225,525 Weighted Average 225,525 80 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 6.4 100 0.0500 0.26 Sheet Flow, Range n= 0.130 P2= 2.87" 3.5 348 0.0550 1.64 Shallow Concentrated Flow, Short Grass Pasture Kv= 7.0 fps 0.7 83 0.0170 1.96 Shallow Concentrated Flow, Wetland Grassed Waterway Kv= 15.0 fps 10.6 531 Total Subcatchment 6S: West - North Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)7 6 5 4 3 2 1 0 MSE 24-hr 3 1-Year A Rainfall=2.47" Runoff Area=225,525 sf Runoff Volume=0.406 af Runoff Depth=0.94" Flow Length=531' Tc=10.6 min CN=WQ 7.10 cfs MSE 24-hr 3 1-Year A Rainfall=2.47"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 10HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 7oS: Offsite West - South Runoff = 2.05 cfs @ 12.13 hrs, Volume= 0.090 af, Depth= 0.81" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MSE 24-hr 3 1-Year A Rainfall=2.47" Area (sf) CN Description 45,880 78 Meadow, non-grazed, HSG D 2,700 98 Unconnected roofs, HSG C 9,600 74 >75% Grass cover, Good, HSG C 58,180 Weighted Average 55,480 77 95.36% Pervious Area 2,700 98 4.64% Impervious Area 2,700 100.00% Unconnected Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 2.0 37 0.1620 0.30 Sheet Flow, Grass: Short n= 0.150 P2= 2.87" 3.0 Direct Entry, Make up to 5.0 minutes 5.0 37 Total Subcatchment 7oS: Offsite West - South Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)2 1 0 MSE 24-hr 3 1-Year A Rainfall=2.47" Runoff Area=58,180 sf Runoff Volume=0.090 af Runoff Depth=0.81" Flow Length=37' Slope=0.1620 '/' Tc=5.0 min CN=WQ 2.05 cfs MSE 24-hr 3 1-Year A Rainfall=2.47"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 11HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 7S: West Woods Runoff = 0.54 cfs @ 12.20 hrs, Volume= 0.048 af, Depth= 0.18" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MSE 24-hr 3 1-Year A Rainfall=2.47" Area (sf) CN Description 117,170 55 Woods, Good, HSG B 19,890 79 Pasture/grassland/range, Poor, HSG B 137,060 Weighted Average 137,060 58 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 8.4 50 0.0600 0.10 Sheet Flow, Woods: Light underbrush n= 0.400 P2= 2.87" 2.7 218 0.0710 1.33 Shallow Concentrated Flow, Woodland Kv= 5.0 fps 11.1 268 Total Subcatchment 7S: West Woods Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.6 0.55 0.5 0.45 0.4 0.35 0.3 0.25 0.2 0.15 0.1 0.05 0 MSE 24-hr 3 1-Year A Rainfall=2.47" Runoff Area=137,060 sf Runoff Volume=0.048 af Runoff Depth=0.18" Flow Length=268' Tc=11.1 min CN=WQ 0.54 cfs MSE 24-hr 3 1-Year A Rainfall=2.47"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 12HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 8S: South - Central to Wetland 4 Runoff = 14.74 cfs @ 12.38 hrs, Volume= 1.352 af, Depth= 0.54" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MSE 24-hr 3 1-Year A Rainfall=2.47" Area (sf) CN Description * 15,505 79 Wetland 5, Pasture/grassland/range, Poor, HSG B 21,030 55 Woods, Good, HSG B 185,110 79 Pasture/grassland/range, Poor, HSG B 460,890 55 Woods, Good, HSG B 618,235 79 Pasture/grassland/range, Poor, HSG B 1,300,770 Weighted Average 1,300,770 70 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 7.8 100 0.0300 0.21 Sheet Flow, Range n= 0.130 P2= 2.87" 15.2 1,028 0.0260 1.13 Shallow Concentrated Flow, Short Grass Pasture Kv= 7.0 fps 1.5 193 0.0200 2.12 Shallow Concentrated Flow, Wetland Grassed Waterway Kv= 15.0 fps 24.5 1,321 Total Subcatchment 8S: South - Central to Wetland 4 Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 MSE 24-hr 3 1-Year A Rainfall=2.47" Runoff Area=1,300,770 sf Runoff Volume=1.352 af Runoff Depth=0.54" Flow Length=1,321' Tc=24.5 min CN=WQ 14.74 cfs MSE 24-hr 3 1-Year A Rainfall=2.47"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 13HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 9.1S: East Woods Runoff = 0.06 cfs @ 12.65 hrs, Volume= 0.021 af, Depth= 0.08" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MSE 24-hr 3 1-Year A Rainfall=2.47" Area (sf) CN Description 140,359 55 Woods, Good, HSG B 140,359 55 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 11.1 75 0.0670 0.11 Sheet Flow, Woods: Light underbrush n= 0.400 P2= 2.87" 4.1 455 0.1380 1.86 Shallow Concentrated Flow, Woodland Kv= 5.0 fps 15.2 530 Total Subcatchment 9.1S: East Woods Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.065 0.06 0.055 0.05 0.045 0.04 0.035 0.03 0.025 0.02 0.015 0.01 0.005 0 MSE 24-hr 3 1-Year A Rainfall=2.47" Runoff Area=140,359 sf Runoff Volume=0.021 af Runoff Depth=0.08" Flow Length=530' Tc=15.2 min CN=55 0.06 cfs MSE 24-hr 3 1-Year A Rainfall=2.47"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 14HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 9.2S: Northeast Woods Runoff = 0.23 cfs @ 12.31 hrs, Volume= 0.029 af, Depth= 0.17" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MSE 24-hr 3 1-Year A Rainfall=2.47" Area (sf) CN Description 76,845 55 Woods, Good, HSG B 11,162 79 Pasture/grassland/range, Poor, HSG B 88,007 Weighted Average 88,007 58 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 14.2 100 0.0650 0.12 Sheet Flow, Woods: Light underbrush n= 0.400 P2= 2.87" 5.3 523 0.1080 1.64 Shallow Concentrated Flow, Woodland Kv= 5.0 fps 19.5 623 Total Subcatchment 9.2S: Northeast Woods Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.25 0.24 0.23 0.22 0.21 0.2 0.19 0.18 0.17 0.16 0.15 0.14 0.13 0.12 0.11 0.1 0.09 0.08 0.07 0.06 0.05 0.04 0.03 0.02 0.01 0 MSE 24-hr 3 1-Year A Rainfall=2.47" Runoff Area=88,007 sf Runoff Volume=0.029 af Runoff Depth=0.17" Flow Length=623' Tc=19.5 min CN=WQ 0.23 cfs MSE 24-hr 3 1-Year A Rainfall=2.47"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 15HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 9.3S: South Runoff = 7.26 cfs @ 12.19 hrs, Volume= 0.404 af, Depth= 0.82" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MSE 24-hr 3 1-Year A Rainfall=2.47" Area (sf) CN Description 3,690 55 Woods, Good, HSG B 246,824 79 Pasture/grassland/range, Poor, HSG B 7,543 86 Pasture/grassland/range, Poor, HSG C 258,057 Weighted Average 258,057 79 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 6.5 90 0.0390 0.23 Sheet Flow, Range n= 0.130 P2= 2.87" 3.8 460 0.0850 2.04 Shallow Concentrated Flow, Short Grass Pasture Kv= 7.0 fps 10.3 550 Total Subcatchment 9.3S: South Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)8 7 6 5 4 3 2 1 0 MSE 24-hr 3 1-Year A Rainfall=2.47" Runoff Area=258,057 sf Runoff Volume=0.404 af Runoff Depth=0.82" Flow Length=550' Tc=10.3 min CN=WQ 7.26 cfs MSE 24-hr 3 1-Year A Rainfall=2.47"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 16HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 9.4S: Southeast Runoff = 7.14 cfs @ 12.26 hrs, Volume= 0.500 af, Depth= 0.81" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MSE 24-hr 3 1-Year A Rainfall=2.47" Area (sf) CN Description 4,560 55 Woods, Good, HSG B 2,090 58 Meadow, non-grazed, HSG B 313,772 79 Pasture/grassland/range, Poor, HSG B 3,405 86 Pasture/grassland/range, Poor, HSG C 323,827 Weighted Average 323,827 79 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 6.0 55 0.0180 0.15 Sheet Flow, Range n= 0.130 P2= 2.87" 10.5 857 0.0380 1.36 Shallow Concentrated Flow, Short Grass Pasture Kv= 7.0 fps 16.5 912 Total Subcatchment 9.4S: Southeast Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)7 6 5 4 3 2 1 0 MSE 24-hr 3 1-Year A Rainfall=2.47" Runoff Area=323,827 sf Runoff Volume=0.500 af Runoff Depth=0.81" Flow Length=912' Tc=16.5 min CN=WQ 7.14 cfs MSE 24-hr 3 1-Year A Rainfall=2.47"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 17HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 10S: Southwest Runoff = 0.07 cfs @ 13.12 hrs, Volume= 0.024 af, Depth= 0.08" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MSE 24-hr 3 1-Year A Rainfall=2.47" Area (sf) CN Description 165,080 55 Woods, Good, HSG B 165,080 55 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 16.0 75 0.0270 0.08 Sheet Flow, Woods: Light underbrush n= 0.400 P2= 2.87" 2.3 195 0.0820 1.43 Shallow Concentrated Flow, Woodland Kv= 5.0 fps 18.3 270 Total Subcatchment 10S: Southwest Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.075 0.07 0.065 0.06 0.055 0.05 0.045 0.04 0.035 0.03 0.025 0.02 0.015 0.01 0.005 0 MSE 24-hr 3 1-Year A Rainfall=2.47" Runoff Area=165,080 sf Runoff Volume=0.024 af Runoff Depth=0.08" Flow Length=270' Tc=18.3 min CN=55 0.07 cfs MSE 24-hr 3 1-Year A Rainfall=2.47"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 18HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 29oS: North Offsite Runoff = 0.00 cfs @ 12.41 hrs, Volume= 0.000 af, Depth= 0.13" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MSE 24-hr 3 1-Year A Rainfall=2.47" Area (sf) CN Description 1,162 58 Meadow, non-grazed, HSG B 1,162 58 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 10.0 Direct Entry, Subcatchment 29oS: North Offsite Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.002 0.002 0.001 0.001 0.001 0.001 0.001 0.001 0.001 0.001 0.001 0.000 0.000 0.000 0.000 0 0 MSE 24-hr 3 1-Year A Rainfall=2.47" Runoff Area=1,162 sf Runoff Volume=0.000 af Runoff Depth=0.13" Tc=10.0 min CN=58 0.00 cfs MSE 24-hr 3 1-Year A Rainfall=2.47"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 19HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 36oS: Southwest Offsite Runoff = 0.00 cfs @ 12.41 hrs, Volume= 0.000 af, Depth= 0.13" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MSE 24-hr 3 1-Year A Rainfall=2.47" Area (sf) CN Description 1,628 58 Meadow, non-grazed, HSG B 1,628 58 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 10.0 Direct Entry, Subcatchment 36oS: Southwest Offsite Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.002 0.002 0.002 0.002 0.002 0.002 0.002 0.002 0.001 0.001 0.001 0.001 0.001 0.001 0.001 0.001 0.001 0.000 0.000 0.000 0.000 0 0 MSE 24-hr 3 1-Year A Rainfall=2.47" Runoff Area=1,628 sf Runoff Volume=0.000 af Runoff Depth=0.13" Tc=10.0 min CN=58 0.00 cfs MSE 24-hr 3 1-Year A Rainfall=2.47"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 20HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Reach 3R: Lower Wetland 6 Inflow Area = 16.210 ac, 0.00% Impervious, Inflow Depth = 0.71" for 1-Year A event Inflow = 13.57 cfs @ 12.26 hrs, Volume= 0.961 af Outflow = 12.96 cfs @ 12.30 hrs, Volume= 0.961 af, Atten= 5%, Lag= 2.7 min Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Max. Velocity= 0.97 fps, Min. Travel Time= 3.2 min Avg. Velocity = 0.40 fps, Avg. Travel Time= 7.8 min Peak Storage= 2,501 cf @ 12.30 hrs Average Depth at Peak Storage= 0.60' Bank-Full Depth= 5.99' Flow Area= 570.1 sf, Capacity= 3,072.14 cfs Custom cross-section, Length= 187.0' Slope= 0.0053 '/' (102 Elevation Intervals) Constant n= 0.050 Scattered brush, heavy weeds Inlet Invert= 885.00', Outlet Invert= 884.00' ‡ Offset Elevation Chan.Depth (feet) (feet) (feet) 0.00 890.40 0.00 43.10 886.55 3.85 85.60 884.41 5.99 126.20 885.14 5.26 145.10 890.40 0.00 Depth End Area Perim. Storage Discharge (feet) (sq-ft) (feet) (cubic-feet) (cfs) 0.00 0.0 0.0 0 0.00 0.73 20.1 55.1 3,761 22.32 2.14 121.1 88.4 22,648 324.64 5.99 570.1 146.1 106,618 3,072.14 MSE 24-hr 3 1-Year A Rainfall=2.47"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 21HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Reach 3R: Lower Wetland 6 Inflow Outflow Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 Inflow Area=16.210 ac Avg. Flow Depth=0.60' Max Vel=0.97 fps n=0.050 L=187.0' S=0.0053 '/' Capacity=3,072.14 cfs 13.57 cfs 12.96 cfs MSE 24-hr 3 1-Year A Rainfall=2.47"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 22HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Stage-Area-Storage for Reach 3R: Lower Wetland 6 Elevation (feet) End-Area (sq-ft) Storage (cubic-feet) 885.00 0.0 0 885.10 0.4 76 885.20 1.5 288 885.30 3.4 635 885.40 6.1 1,135 885.50 9.5 1,770 885.60 13.6 2,541 885.70 18.5 3,463 885.80 24.0 4,494 885.90 29.8 5,576 886.00 35.9 6,704 886.10 42.1 7,875 886.20 48.6 9,088 886.30 55.3 10,348 886.40 62.3 11,650 886.50 69.5 12,995 886.60 76.9 14,386 886.70 84.6 15,820 886.80 92.5 17,296 886.90 100.6 18,819 887.00 109.0 20,385 887.10 117.6 21,992 887.20 126.4 23,643 887.30 135.4 25,322 887.40 144.5 27,028 887.50 153.8 28,763 887.60 163.2 30,526 887.70 172.8 32,315 887.80 182.5 34,133 887.90 192.4 35,978 888.00 202.4 37,850 888.10 212.6 39,751 888.20 222.9 41,679 888.30 233.3 43,634 888.40 243.9 45,618 888.50 254.7 47,629 888.60 265.6 49,667 888.70 276.6 51,734 888.80 287.8 53,828 888.90 299.2 55,949 889.00 310.7 58,098 889.10 322.3 60,276 889.20 334.1 62,479 889.30 346.1 64,712 889.40 358.1 66,972 889.50 370.4 69,259 889.60 382.8 71,574 889.70 395.3 73,918 889.80 408.0 76,287 889.90 420.8 78,686 890.00 433.8 81,112 890.10 446.9 83,565 Elevation (feet) End-Area (sq-ft) Storage (cubic-feet) 890.20 460.1 86,046 890.30 473.6 88,555 890.40 487.1 91,091 890.50 500.8 93,655 890.60 514.7 96,247 890.70 528.7 98,866 890.80 542.9 101,513 890.90 557.2 104,188 891.00 571.6 106,888 MSE 24-hr 3 1-Year A Rainfall=2.47"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 23HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Reach 4R: Southwest Drainage [40] Hint: Not Described (Outflow=Inflow) Inflow Area = 16.146 ac, 3.23% Impervious, Inflow Depth = 0.54" for 1-Year A event Inflow = 5.90 cfs @ 12.42 hrs, Volume= 0.732 af Outflow = 5.90 cfs @ 12.42 hrs, Volume= 0.732 af, Atten= 0%, Lag= 0.0 min Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Reach 4R: Southwest Drainage Inflow Outflow Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)6 5 4 3 2 1 0 Inflow Area=16.146 ac 5.90 cfs 5.90 cfs MSE 24-hr 3 1-Year A Rainfall=2.47"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 24HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Reach 5R: Upper Wetland 6 [40] Hint: Not Described (Outflow=Inflow) Inflow Area = 14.642 ac, 0.00% Impervious, Inflow Depth = 0.77" for 1-Year A event Inflow = 13.38 cfs @ 12.26 hrs, Volume= 0.936 af Outflow = 13.38 cfs @ 12.26 hrs, Volume= 0.936 af, Atten= 0%, Lag= 0.0 min Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Reach 5R: Upper Wetland 6 Inflow Outflow Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 Inflow Area=14.642 ac 13.38 cfs 13.38 cfs MSE 24-hr 3 1-Year A Rainfall=2.47"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 25HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Reach 6R: Bluff Creek Drainage [40] Hint: Not Described (Outflow=Inflow) Inflow Area = 80.819 ac, 0.64% Impervious, Inflow Depth = 0.59" for 1-Year A event Inflow = 43.46 cfs @ 12.31 hrs, Volume= 3.997 af Outflow = 43.46 cfs @ 12.31 hrs, Volume= 3.997 af, Atten= 0%, Lag= 0.0 min Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Reach 6R: Bluff Creek Drainage Inflow Outflow Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)48 46 44 42 40 38 36 34 32 30 28 26 24 22 20 18 16 14 12 10 8 6 4 2 0 Inflow Area=80.819 ac 43.46 cfs 43.46 cfs MSE 24-hr 3 1-Year A Rainfall=2.47"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 26HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Reach 8R: South Drainage [40] Hint: Not Described (Outflow=Inflow) Inflow Area = 48.462 ac, 0.00% Impervious, Inflow Depth = 0.57" for 1-Year A event Inflow = 24.83 cfs @ 12.30 hrs, Volume= 2.304 af Outflow = 24.83 cfs @ 12.30 hrs, Volume= 2.304 af, Atten= 0%, Lag= 0.0 min Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Reach 8R: South Drainage Inflow Outflow Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)26 24 22 20 18 16 14 12 10 8 6 4 2 0 Inflow Area=48.462 ac 24.83 cfs 24.83 cfs MSE 24-hr 3 1-Year A Rainfall=2.47"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 27HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Reach 9R: Wetland 4 Channel [40] Hint: Not Described (Outflow=Inflow) Inflow Area = 31.882 ac, 0.00% Impervious, Inflow Depth = 0.52" for 1-Year A event Inflow = 14.93 cfs @ 12.39 hrs, Volume= 1.380 af Outflow = 14.93 cfs @ 12.39 hrs, Volume= 1.380 af, Atten= 0%, Lag= 0.0 min Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Reach 9R: Wetland 4 Channel Inflow Outflow Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 Inflow Area=31.882 ac 14.93 cfs 14.93 cfs MSE 24-hr 3 1-Year A Rainfall=2.47"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 28HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Pond 6P: Wetland 3 Inflow Area = 7.837 ac, 5.86% Impervious, Inflow Depth = 0.87" for 1-Year A event Inflow = 9.51 cfs @ 12.17 hrs, Volume= 0.569 af Outflow = 7.41 cfs @ 12.25 hrs, Volume= 0.569 af, Atten= 22%, Lag= 4.4 min Primary = 7.41 cfs @ 12.25 hrs, Volume= 0.569 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 920.87' @ 12.25 hrs Surf.Area= 20,545 sf Storage= 2,964 cf Plug-Flow detention time= 9.1 min calculated for 0.569 af (100% of inflow) Center-of-Mass det. time= 10.9 min ( 820.4 - 809.5 ) Volume Invert Avail.Storage Storage Description #1 920.58' 140,121 cf Custom Stage Data (Prismatic) Listed below (Recalc) Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 920.58 100 0 0 921.00 30,000 6,321 6,321 922.00 68,200 49,100 55,421 923.00 101,200 84,700 140,121 Device Routing Invert Outlet Devices #1 Primary 920.58'Asymmetrical Weir, C= 3.27 Offset (feet) 0.00 10.50 22.75 36.75 74.10 Height (feet) 2.09 0.33 0.10 0.00 2.09 Primary OutFlow Max=7.40 cfs @ 12.25 hrs HW=920.87' TW=908.42' (Dynamic Tailwater) 1=Asymmetrical Weir (Weir Controls 7.40 cfs @ 1.01 fps) MSE 24-hr 3 1-Year A Rainfall=2.47"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 29HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Pond 6P: Wetland 3 Inflow Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)10 9 8 7 6 5 4 3 2 1 0 Inflow Area=7.837 ac Peak Elev=920.87' Storage=2,964 cf 9.51 cfs 7.41 cfs MSE 24-hr 3 1-Year A Rainfall=2.47"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 30HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Stage-Area-Storage for Pond 6P: Wetland 3 Elevation (feet) Surface (sq-ft) Storage (cubic-feet) 920.58 100 0 920.63 3,660 94 920.68 7,219 366 920.73 10,779 816 920.78 14,338 1,444 920.83 17,898 2,250 920.88 21,457 3,234 920.93 25,017 4,395 920.98 28,576 5,735 921.03 31,146 7,238 921.08 33,056 8,843 921.13 34,966 10,544 921.18 36,876 12,340 921.23 38,786 14,231 921.28 40,696 16,218 921.33 42,606 18,301 921.38 44,516 20,479 921.43 46,426 22,753 921.48 48,336 25,122 921.53 50,246 27,586 921.58 52,156 30,146 921.63 54,066 32,802 921.68 55,976 35,553 921.73 57,886 38,399 921.78 59,796 41,341 921.83 61,706 44,379 921.88 63,616 47,512 921.93 65,526 50,741 921.98 67,436 54,065 922.03 69,190 57,482 922.08 70,840 60,983 922.13 72,490 64,566 922.18 74,140 68,232 922.23 75,790 71,980 922.28 77,440 75,811 922.33 79,090 79,724 922.38 80,740 83,720 922.43 82,390 87,798 922.48 84,040 91,959 922.53 85,690 96,202 922.58 87,340 100,528 922.63 88,990 104,936 922.68 90,640 109,427 922.73 92,290 114,000 922.78 93,940 118,656 922.83 95,590 123,394 922.88 97,240 128,215 922.93 98,890 133,118 922.98 100,540 138,104 MSE 24-hr 3 1-Year A Rainfall=2.47"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 31HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Pond 7P: West - South Inflow Area = 12.319 ac, 4.23% Impervious, Inflow Depth = 0.69" for 1-Year A event Inflow = 8.74 cfs @ 12.23 hrs, Volume= 0.708 af Outflow = 5.88 cfs @ 12.41 hrs, Volume= 0.708 af, Atten= 33%, Lag= 10.7 min Primary = 5.88 cfs @ 12.41 hrs, Volume= 0.708 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 908.59' @ 12.41 hrs Surf.Area= 6,362 sf Storage= 3,823 cf Plug-Flow detention time= (not calculated: outflow precedes inflow) Center-of-Mass det. time= 6.5 min ( 831.1 - 824.6 ) Volume Invert Avail.Storage Storage Description #1 906.98' 69,886 cf Custom Stage Data (Prismatic) Listed below (Recalc) Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 906.98 10 0 0 908.00 2,390 1,224 1,224 909.00 9,076 5,733 6,957 910.00 17,981 13,529 20,485 911.00 24,971 21,476 41,961 912.00 30,878 27,925 69,886 Device Routing Invert Outlet Devices #1 Primary 906.98'15.0" Round Culvert L= 48.8' RCP, end-section conforming to fill, Ke= 0.500 Inlet / Outlet Invert= 906.98' / 906.00' S= 0.0201 '/' Cc= 0.900 n= 0.013 Concrete pipe, straight & clean, Flow Area= 1.23 sf #2 Primary 911.22'Asymmetrical Weir, C= 3.27 Offset (feet) 0.00 12.00 18.00 28.00 49.00 88.00 Height (feet) 1.35 0.02 0.00 0.15 0.70 1.35 Primary OutFlow Max=5.88 cfs @ 12.41 hrs HW=908.59' TW=0.00' (Dynamic Tailwater) 1=Culvert (Inlet Controls 5.88 cfs @ 4.79 fps) 2=Asymmetrical Weir ( Controls 0.00 cfs) MSE 24-hr 3 1-Year A Rainfall=2.47"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 32HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Pond 7P: West - South Inflow Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)9 8 7 6 5 4 3 2 1 0 Inflow Area=12.319 ac Peak Elev=908.59' Storage=3,823 cf 8.74 cfs 5.88 cfs MSE 24-hr 3 1-Year A Rainfall=2.47"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 33HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Stage-Area-Storage for Pond 7P: West - South Elevation (feet) Surface (sq-ft) Storage (cubic-feet) 906.98 10 0 907.08 243 13 907.18 477 49 907.28 710 108 907.38 943 191 907.48 1,177 297 907.58 1,410 426 907.68 1,643 579 907.78 1,877 755 907.88 2,110 954 907.98 2,343 1,177 908.08 2,925 1,437 908.18 3,593 1,763 908.28 4,262 2,155 908.38 4,931 2,615 908.48 5,599 3,141 908.58 6,268 3,735 908.68 6,936 4,395 908.78 7,605 5,122 908.88 8,274 5,916 908.98 8,942 6,777 909.08 9,788 7,712 909.18 10,679 8,735 909.28 11,569 9,847 909.38 12,460 11,049 909.48 13,350 12,339 909.58 14,241 13,719 909.68 15,131 15,188 909.78 16,022 16,745 909.88 16,912 18,392 909.98 17,803 20,128 910.08 18,540 21,946 910.18 19,239 23,835 910.28 19,938 25,794 910.38 20,637 27,823 910.48 21,336 29,922 910.58 22,035 32,090 910.68 22,734 34,329 910.78 23,433 36,637 910.88 24,132 39,015 910.98 24,831 41,463 911.08 25,444 43,978 911.18 26,034 46,552 911.28 26,625 49,185 911.38 27,216 51,877 911.48 27,806 54,628 911.58 28,397 57,438 911.68 28,988 60,307 911.78 29,578 63,236 911.88 30,169 66,223 911.98 30,760 69,270 912.08 30,878 69,886 Elevation (feet) Surface (sq-ft) Storage (cubic-feet) 912.18 30,878 69,886 912.28 30,878 69,886 912.38 30,878 69,886 912.48 30,878 69,886 MSE 24-hr 3 1-Year A Rainfall=2.47"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 34HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Pond 8P: Wetland 4 Inflow Area = 29.862 ac, 0.00% Impervious, Inflow Depth = 0.54" for 1-Year A event Inflow = 14.74 cfs @ 12.38 hrs, Volume= 1.352 af Outflow = 14.72 cfs @ 12.39 hrs, Volume= 1.351 af, Atten= 0%, Lag= 0.4 min Primary = 14.72 cfs @ 12.39 hrs, Volume= 1.351 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 884.53' @ 12.39 hrs Surf.Area= 2,065 sf Storage= 769 cf Plug-Flow detention time= 2.7 min calculated for 1.351 af (100% of inflow) Center-of-Mass det. time= 2.6 min ( 854.4 - 851.8 ) Volume Invert Avail.Storage Storage Description #1 884.00' 37,633 cf Custom Stage Data (Prismatic) Listed below (Recalc) Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 884.00 870 0 0 884.50 1,980 713 713 885.00 3,500 1,370 2,083 886.00 7,800 5,650 7,733 887.00 14,000 10,900 18,633 888.00 24,000 19,000 37,633 Device Routing Invert Outlet Devices #1 Primary 884.03'Asymmetrical Weir, C= 3.27 Offset (feet) 0.00 51.00 133.60 176.00 217.30 239.00 Elev. (feet) 889.78 886.05 884.03 885.84 889.00 889.78 Primary OutFlow Max=14.72 cfs @ 12.39 hrs HW=884.53' TW=0.00' (Dynamic Tailwater) 1=Asymmetrical Weir (Weir Controls 14.72 cfs @ 0.92 fps) MSE 24-hr 3 1-Year A Rainfall=2.47"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 35HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Pond 8P: Wetland 4 Inflow Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 Inflow Area=29.862 ac Peak Elev=884.53' Storage=769 cf 14.74 cfs 14.72 cfs MSE 24-hr 3 1-Year A Rainfall=2.47"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 36HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Stage-Area-Storage for Pond 8P: Wetland 4 Elevation (feet) Surface (sq-ft) Storage (cubic-feet) 884.00 870 0 884.10 1,092 98 884.20 1,314 218 884.30 1,536 361 884.40 1,758 526 884.50 1,980 713 884.60 2,284 926 884.70 2,588 1,169 884.80 2,892 1,443 884.90 3,196 1,748 885.00 3,500 2,083 885.10 3,930 2,454 885.20 4,360 2,869 885.30 4,790 3,326 885.40 5,220 3,826 885.50 5,650 4,370 885.60 6,080 4,957 885.70 6,510 5,586 885.80 6,940 6,258 885.90 7,370 6,974 886.00 7,800 7,733 886.10 8,420 8,544 886.20 9,040 9,417 886.30 9,660 10,351 886.40 10,280 11,348 886.50 10,900 12,408 886.60 11,520 13,529 886.70 12,140 14,712 886.80 12,760 15,956 886.90 13,380 17,263 887.00 14,000 18,633 887.10 15,000 20,083 887.20 16,000 21,633 887.30 17,000 23,282 887.40 18,000 25,032 887.50 19,000 26,883 887.60 20,000 28,833 887.70 21,000 30,883 887.80 22,000 33,032 887.90 23,000 35,282 888.00 24,000 37,633 888.10 24,000 37,633 888.20 24,000 37,633 888.30 24,000 37,633 888.40 24,000 37,633 888.50 24,000 37,633 888.60 24,000 37,633 888.70 24,000 37,633 888.80 24,000 37,633 888.90 24,000 37,633 889.00 24,000 37,633 889.10 24,000 37,633 Elevation (feet) Surface (sq-ft) Storage (cubic-feet) 889.20 24,000 37,633 889.30 24,000 37,633 889.40 24,000 37,633 889.50 24,000 37,633 889.60 24,000 37,633 889.70 24,000 37,633 MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 37HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Time span=0.00-360.00 hrs, dt=0.01 hrs, 36001 points Runoff by SCS TR-20 method, UH=SCS, Weighted-Q Reach routing by Dyn-Stor-Ind method - Pond routing by Dyn-Stor-Ind method Runoff Area=67,165 sf 0.00% Impervious Runoff Depth=0.00"Subcatchment 5aS: To Lyman - North Flow Length=115' Tc=7.9 min CN=61 Runoff=0.00 cfs 0.000 af Runoff Area=10,548 sf 0.00% Impervious Runoff Depth=0.16"Subcatchment 5oS: From Lyman Flow Length=57' Slope=0.3330 '/' Tc=5.0 min CN=78 Runoff=0.05 cfs 0.003 af Runoff Area=627,245 sf 0.00% Impervious Runoff Depth=0.17"Subcatchment 5S: Northwest Flow Length=1,040' Tc=15.9 min CN=WQ Runoff=2.10 cfs 0.201 af Runoff Area=115,865 sf 17.26% Impervious Runoff Depth=0.29"Subcatchment 6oS: Offsite West - North Flow Length=431' Tc=7.3 min UI Adjusted CN=WQ Runoff=1.27 cfs 0.065 af Runoff Area=225,525 sf 0.00% Impervious Runoff Depth=0.26"Subcatchment 6S: West - North Flow Length=531' Tc=10.6 min CN=WQ Runoff=1.63 cfs 0.113 af Runoff Area=58,180 sf 4.64% Impervious Runoff Depth=0.19"Subcatchment 7oS: Offsite West - South Flow Length=37' Slope=0.1620 '/' Tc=5.0 min CN=WQ Runoff=0.37 cfs 0.021 af Runoff Area=137,060 sf 0.00% Impervious Runoff Depth=0.03"Subcatchment 7S: West Woods Flow Length=268' Tc=11.1 min CN=WQ Runoff=0.09 cfs 0.007 af Runoff Area=1,300,770 sf 0.00% Impervious Runoff Depth=0.11"Subcatchment 8S: South - Central to Flow Length=1,321' Tc=24.5 min CN=WQ Runoff=2.37 cfs 0.282 af Runoff Area=140,359 sf 0.00% Impervious Runoff Depth=0.00"Subcatchment 9.1S: East Woods Flow Length=530' Tc=15.2 min CN=55 Runoff=0.00 cfs 0.000 af Runoff Area=88,007 sf 0.00% Impervious Runoff Depth=0.02"Subcatchment 9.2S: Northeast Woods Flow Length=623' Tc=19.5 min CN=WQ Runoff=0.04 cfs 0.004 af Runoff Area=258,057 sf 0.00% Impervious Runoff Depth=0.18"Subcatchment 9.3S: South Flow Length=550' Tc=10.3 min CN=WQ Runoff=1.20 cfs 0.091 af Runoff Area=323,827 sf 0.00% Impervious Runoff Depth=0.18"Subcatchment 9.4S: Southeast Flow Length=912' Tc=16.5 min CN=WQ Runoff=1.14 cfs 0.111 af Runoff Area=165,080 sf 0.00% Impervious Runoff Depth=0.00"Subcatchment 10S: Southwest Flow Length=270' Tc=18.3 min CN=55 Runoff=0.00 cfs 0.000 af Runoff Area=1,162 sf 0.00% Impervious Runoff Depth=0.00"Subcatchment 29oS: North Offsite Tc=10.0 min CN=58 Runoff=0.00 cfs 0.000 af Runoff Area=1,628 sf 0.00% Impervious Runoff Depth=0.00"Subcatchment 36oS: Southwest Offsite Tc=10.0 min CN=58 Runoff=0.00 cfs 0.000 af Avg. Flow Depth=0.29' Max Vel=0.60 fps Inflow=2.13 cfs 0.205 afReach 3R: Lower Wetland 6 n=0.050 L=187.0' S=0.0053 '/' Capacity=3,072.14 cfs Outflow=1.90 cfs 0.205 af MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 38HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Inflow=2.06 cfs 0.206 afReach 4R: Southwest Drainage Outflow=2.06 cfs 0.206 af Inflow=2.13 cfs 0.205 afReach 5R: Upper Wetland 6 Outflow=2.13 cfs 0.205 af Inflow=7.84 cfs 0.897 afReach 6R: Bluff Creek Drainage Outflow=7.84 cfs 0.897 af Inflow=3.95 cfs 0.487 afReach 8R: South Drainage Outflow=3.95 cfs 0.487 af Inflow=2.39 cfs 0.286 afReach 9R: Wetland 4 Channel Outflow=2.39 cfs 0.286 af Peak Elev=920.74' Storage=939 cf Inflow=2.71 cfs 0.177 afPond 6P: Wetland 3 Outflow=2.04 cfs 0.177 af Peak Elev=907.69' Storage=593 cf Inflow=2.31 cfs 0.206 afPond 7P: West - South Outflow=2.06 cfs 0.206 af Peak Elev=884.27' Storage=315 cf Inflow=2.37 cfs 0.282 afPond 8P: Wetland 4 Outflow=2.36 cfs 0.282 af Total Runoff Area = 80.819 ac Runoff Volume = 0.898 af Average Runoff Depth = 0.13" 99.36% Pervious = 80.298 ac 0.64% Impervious = 0.521 ac MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 39HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 5aS: To Lyman - North Runoff = 0.00 cfs @ 22.15 hrs, Volume= 0.000 af, Depth= 0.00" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32" Area (sf) CN Description 67,165 61 >75% Grass cover, Good, HSG B 67,165 61 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 7.7 75 0.0600 0.16 Sheet Flow, Grass: Dense n= 0.240 P2= 2.87" 0.2 40 0.1500 2.71 Shallow Concentrated Flow, Short Grass Pasture Kv= 7.0 fps 7.9 115 Total Subcatchment 5aS: To Lyman - North Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.000 0.000 0.000 0.000 0 0 0 0 0 0 0 0 0 0 MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32" Runoff Area=67,165 sf Runoff Volume=0.000 af Runoff Depth=0.00" Flow Length=115' Tc=7.9 min CN=61 0.00 cfs MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 40HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 5oS: From Lyman Runoff = 0.05 cfs @ 12.14 hrs, Volume= 0.003 af, Depth= 0.16" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32" Area (sf) CN Description 10,548 78 Meadow, non-grazed, HSG D 10,548 78 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 2.1 57 0.3330 0.44 Sheet Flow, Grass: Short n= 0.150 P2= 2.87" 2.9 Direct Entry, Make up to 5 minutes 5.0 57 Total Subcatchment 5oS: From Lyman Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.06 0.055 0.05 0.045 0.04 0.035 0.03 0.025 0.02 0.015 0.01 0.005 0 MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32" Runoff Area=10,548 sf Runoff Volume=0.003 af Runoff Depth=0.16" Flow Length=57' Slope=0.3330 '/' Tc=5.0 min CN=78 0.05 cfs MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 41HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 5S: Northwest Runoff = 2.10 cfs @ 12.31 hrs, Volume= 0.201 af, Depth= 0.17" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32" Area (sf) CN Description 7,250 55 Woods, Good, HSG B 217,355 79 Pasture/grassland/range, Poor, HSG B 366,575 79 Pasture/grassland/range, Poor, HSG B 7,095 61 >75% Grass cover, Good, HSG B 28,970 55 Woods, Good, HSG B 627,245 Weighted Average 627,245 77 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 7.8 100 0.0300 0.21 Sheet Flow, Range n= 0.130 P2= 2.87" 4.5 419 0.0500 1.57 Shallow Concentrated Flow, Short Grass Pasture Kv= 7.0 fps 0.9 131 0.1220 2.44 Shallow Concentrated Flow, Short Grass Pasture Kv= 7.0 fps 2.7 390 0.0260 2.42 Shallow Concentrated Flow, Wetland Grassed Waterway Kv= 15.0 fps 15.9 1,040 Total MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 42HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Subcatchment 5S: Northwest Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)2 1 0 MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32" Runoff Area=627,245 sf Runoff Volume=0.201 af Runoff Depth=0.17" Flow Length=1,040' Tc=15.9 min CN=WQ 2.10 cfs MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 43HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 6oS: Offsite West - North Runoff = 1.27 cfs @ 12.14 hrs, Volume= 0.065 af, Depth= 0.29" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32" Area (sf) CN Adj Description 20,000 98 98 Unconnected roofs, HSG B 71,000 61 61 >75% Grass cover, Good, HSG B * 12,720 96 96 Wetland, Good, HSG D 12,145 58 58 Meadow, non-grazed, HSG B 115,865 Weighted Average 95,865 65 65 82.74% Pervious Area 20,000 98 98 17.26% Impervious Area 20,000 100.00% Unconnected Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 5.0 25 0.0200 0.08 Sheet Flow, Grass: Dense n= 0.240 P2= 2.87" 2.3 406 0.0390 2.96 Shallow Concentrated Flow, Grassed Waterway Kv= 15.0 fps 7.3 431 Total Subcatchment 6oS: Offsite West - North Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)1 0 MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32" Runoff Area=115,865 sf Runoff Volume=0.065 af Runoff Depth=0.29" Flow Length=431' Tc=7.3 min UI Adjusted CN=WQ 1.27 cfs MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 44HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 6S: West - North Runoff = 1.63 cfs @ 12.20 hrs, Volume= 0.113 af, Depth= 0.26" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32" Area (sf) CN Description 2,000 77 Woods, Good, HSG D 4,000 55 Woods, Good, HSG B * 25,440 96 Wetland, Good, HSG D 194,085 79 Pasture/grassland/range, Poor, HSG B 225,525 Weighted Average 225,525 80 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 6.4 100 0.0500 0.26 Sheet Flow, Range n= 0.130 P2= 2.87" 3.5 348 0.0550 1.64 Shallow Concentrated Flow, Short Grass Pasture Kv= 7.0 fps 0.7 83 0.0170 1.96 Shallow Concentrated Flow, Wetland Grassed Waterway Kv= 15.0 fps 10.6 531 Total Subcatchment 6S: West - North Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)1 0 MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32" Runoff Area=225,525 sf Runoff Volume=0.113 af Runoff Depth=0.26" Flow Length=531' Tc=10.6 min CN=WQ 1.63 cfs MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 45HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 7oS: Offsite West - South Runoff = 0.37 cfs @ 12.14 hrs, Volume= 0.021 af, Depth= 0.19" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32" Area (sf) CN Description 45,880 78 Meadow, non-grazed, HSG D 2,700 98 Unconnected roofs, HSG C 9,600 74 >75% Grass cover, Good, HSG C 58,180 Weighted Average 55,480 77 95.36% Pervious Area 2,700 98 4.64% Impervious Area 2,700 100.00% Unconnected Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 2.0 37 0.1620 0.30 Sheet Flow, Grass: Short n= 0.150 P2= 2.87" 3.0 Direct Entry, Make up to 5.0 minutes 5.0 37 Total Subcatchment 7oS: Offsite West - South Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.4 0.38 0.36 0.34 0.32 0.3 0.28 0.26 0.24 0.22 0.2 0.18 0.16 0.14 0.12 0.1 0.08 0.06 0.04 0.02 0 MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32" Runoff Area=58,180 sf Runoff Volume=0.021 af Runoff Depth=0.19" Flow Length=37' Slope=0.1620 '/' Tc=5.0 min CN=WQ 0.37 cfs MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 46HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 7S: West Woods Runoff = 0.09 cfs @ 12.22 hrs, Volume= 0.007 af, Depth= 0.03" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32" Area (sf) CN Description 117,170 55 Woods, Good, HSG B 19,890 79 Pasture/grassland/range, Poor, HSG B 137,060 Weighted Average 137,060 58 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 8.4 50 0.0600 0.10 Sheet Flow, Woods: Light underbrush n= 0.400 P2= 2.87" 2.7 218 0.0710 1.33 Shallow Concentrated Flow, Woodland Kv= 5.0 fps 11.1 268 Total Subcatchment 7S: West Woods Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.095 0.09 0.085 0.08 0.075 0.07 0.065 0.06 0.055 0.05 0.045 0.04 0.035 0.03 0.025 0.02 0.015 0.01 0.005 0 MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32" Runoff Area=137,060 sf Runoff Volume=0.007 af Runoff Depth=0.03" Flow Length=268' Tc=11.1 min CN=WQ 0.09 cfs MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 47HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 8S: South - Central to Wetland 4 Runoff = 2.37 cfs @ 12.44 hrs, Volume= 0.282 af, Depth= 0.11" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32" Area (sf) CN Description * 15,505 79 Wetland 5, Pasture/grassland/range, Poor, HSG B 21,030 55 Woods, Good, HSG B 185,110 79 Pasture/grassland/range, Poor, HSG B 460,890 55 Woods, Good, HSG B 618,235 79 Pasture/grassland/range, Poor, HSG B 1,300,770 Weighted Average 1,300,770 70 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 7.8 100 0.0300 0.21 Sheet Flow, Range n= 0.130 P2= 2.87" 15.2 1,028 0.0260 1.13 Shallow Concentrated Flow, Short Grass Pasture Kv= 7.0 fps 1.5 193 0.0200 2.12 Shallow Concentrated Flow, Wetland Grassed Waterway Kv= 15.0 fps 24.5 1,321 Total Subcatchment 8S: South - Central to Wetland 4 Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)2 1 0 MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32" Runoff Area=1,300,770 sf Runoff Volume=0.282 af Runoff Depth=0.11" Flow Length=1,321' Tc=24.5 min CN=WQ 2.37 cfs MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 48HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 9.1S: East Woods [45] Hint: Runoff=Zero Runoff = 0.00 cfs @ 0.00 hrs, Volume= 0.000 af, Depth= 0.00" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32" Area (sf) CN Description 140,359 55 Woods, Good, HSG B 140,359 55 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 11.1 75 0.0670 0.11 Sheet Flow, Woods: Light underbrush n= 0.400 P2= 2.87" 4.1 455 0.1380 1.86 Shallow Concentrated Flow, Woodland Kv= 5.0 fps 15.2 530 Total Subcatchment 9.1S: East Woods Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)1 0 MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32" Runoff Area=140,359 sf Runoff Volume=0.000 af Runoff Depth=0.00" Flow Length=530' Tc=15.2 min CN=55 0.00 cfs MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 49HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 9.2S: Northeast Woods Runoff = 0.04 cfs @ 12.37 hrs, Volume= 0.004 af, Depth= 0.02" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32" Area (sf) CN Description 76,845 55 Woods, Good, HSG B 11,162 79 Pasture/grassland/range, Poor, HSG B 88,007 Weighted Average 88,007 58 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 14.2 100 0.0650 0.12 Sheet Flow, Woods: Light underbrush n= 0.400 P2= 2.87" 5.3 523 0.1080 1.64 Shallow Concentrated Flow, Woodland Kv= 5.0 fps 19.5 623 Total Subcatchment 9.2S: Northeast Woods Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.04 0.038 0.036 0.034 0.032 0.03 0.028 0.026 0.024 0.022 0.02 0.018 0.016 0.014 0.012 0.01 0.008 0.006 0.004 0.002 0 MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32" Runoff Area=88,007 sf Runoff Volume=0.004 af Runoff Depth=0.02" Flow Length=623' Tc=19.5 min CN=WQ 0.04 cfs MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 50HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 9.3S: South Runoff = 1.20 cfs @ 12.21 hrs, Volume= 0.091 af, Depth= 0.18" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32" Area (sf) CN Description 3,690 55 Woods, Good, HSG B 246,824 79 Pasture/grassland/range, Poor, HSG B 7,543 86 Pasture/grassland/range, Poor, HSG C 258,057 Weighted Average 258,057 79 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 6.5 90 0.0390 0.23 Sheet Flow, Range n= 0.130 P2= 2.87" 3.8 460 0.0850 2.04 Shallow Concentrated Flow, Short Grass Pasture Kv= 7.0 fps 10.3 550 Total Subcatchment 9.3S: South Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)1 0 MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32" Runoff Area=258,057 sf Runoff Volume=0.091 af Runoff Depth=0.18" Flow Length=550' Tc=10.3 min CN=WQ 1.20 cfs MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 51HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 9.4S: Southeast Runoff = 1.14 cfs @ 12.31 hrs, Volume= 0.111 af, Depth= 0.18" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32" Area (sf) CN Description 4,560 55 Woods, Good, HSG B 2,090 58 Meadow, non-grazed, HSG B 313,772 79 Pasture/grassland/range, Poor, HSG B 3,405 86 Pasture/grassland/range, Poor, HSG C 323,827 Weighted Average 323,827 79 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 6.0 55 0.0180 0.15 Sheet Flow, Range n= 0.130 P2= 2.87" 10.5 857 0.0380 1.36 Shallow Concentrated Flow, Short Grass Pasture Kv= 7.0 fps 16.5 912 Total Subcatchment 9.4S: Southeast Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)1 0 MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32" Runoff Area=323,827 sf Runoff Volume=0.111 af Runoff Depth=0.18" Flow Length=912' Tc=16.5 min CN=WQ 1.14 cfs MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 52HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 10S: Southwest [45] Hint: Runoff=Zero Runoff = 0.00 cfs @ 0.00 hrs, Volume= 0.000 af, Depth= 0.00" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32" Area (sf) CN Description 165,080 55 Woods, Good, HSG B 165,080 55 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 16.0 75 0.0270 0.08 Sheet Flow, Woods: Light underbrush n= 0.400 P2= 2.87" 2.3 195 0.0820 1.43 Shallow Concentrated Flow, Woodland Kv= 5.0 fps 18.3 270 Total Subcatchment 10S: Southwest Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)1 0 MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32" Runoff Area=165,080 sf Runoff Volume=0.000 af Runoff Depth=0.00" Flow Length=270' Tc=18.3 min CN=55 0.00 cfs MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 53HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 29oS: North Offsite [45] Hint: Runoff=Zero Runoff = 0.00 cfs @ 0.00 hrs, Volume= 0.000 af, Depth= 0.00" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32" Area (sf) CN Description 1,162 58 Meadow, non-grazed, HSG B 1,162 58 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 10.0 Direct Entry, Subcatchment 29oS: North Offsite Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)1 0 MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32" Runoff Area=1,162 sf Runoff Volume=0.000 af Runoff Depth=0.00" Tc=10.0 min CN=58 0.00 cfs MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 54HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 36oS: Southwest Offsite [45] Hint: Runoff=Zero Runoff = 0.00 cfs @ 0.00 hrs, Volume= 0.000 af, Depth= 0.00" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32" Area (sf) CN Description 1,628 58 Meadow, non-grazed, HSG B 1,628 58 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 10.0 Direct Entry, Subcatchment 36oS: Southwest Offsite Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)1 0 MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32" Runoff Area=1,628 sf Runoff Volume=0.000 af Runoff Depth=0.00" Tc=10.0 min CN=58 0.00 cfs MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 55HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Reach 3R: Lower Wetland 6 Inflow Area = 16.210 ac, 0.00% Impervious, Inflow Depth = 0.15" for 1.1 Inch Equiv. event Inflow = 2.13 cfs @ 12.31 hrs, Volume= 0.205 af Outflow = 1.90 cfs @ 12.38 hrs, Volume= 0.205 af, Atten= 11%, Lag= 4.7 min Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Max. Velocity= 0.60 fps, Min. Travel Time= 5.2 min Avg. Velocity = 0.30 fps, Avg. Travel Time= 10.2 min Peak Storage= 591 cf @ 12.38 hrs Average Depth at Peak Storage= 0.29' Bank-Full Depth= 5.99' Flow Area= 570.1 sf, Capacity= 3,072.14 cfs Custom cross-section, Length= 187.0' Slope= 0.0053 '/' (102 Elevation Intervals) Constant n= 0.050 Scattered brush, heavy weeds Inlet Invert= 885.00', Outlet Invert= 884.00' ‡ Offset Elevation Chan.Depth (feet) (feet) (feet) 0.00 890.40 0.00 43.10 886.55 3.85 85.60 884.41 5.99 126.20 885.14 5.26 145.10 890.40 0.00 Depth End Area Perim. Storage Discharge (feet) (sq-ft) (feet) (cubic-feet) (cfs) 0.00 0.0 0.0 0 0.00 0.73 20.1 55.1 3,761 22.32 2.14 121.1 88.4 22,648 324.64 5.99 570.1 146.1 106,618 3,072.14 MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 56HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Reach 3R: Lower Wetland 6 Inflow Outflow Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)2 1 0 Inflow Area=16.210 ac Avg. Flow Depth=0.29' Max Vel=0.60 fps n=0.050 L=187.0' S=0.0053 '/' Capacity=3,072.14 cfs 2.13 cfs 1.90 cfs MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 57HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Stage-Area-Storage for Reach 3R: Lower Wetland 6 Elevation (feet) End-Area (sq-ft) Storage (cubic-feet) 885.00 0.0 0 885.10 0.4 76 885.20 1.5 288 885.30 3.4 635 885.40 6.1 1,135 885.50 9.5 1,770 885.60 13.6 2,541 885.70 18.5 3,463 885.80 24.0 4,494 885.90 29.8 5,576 886.00 35.9 6,704 886.10 42.1 7,875 886.20 48.6 9,088 886.30 55.3 10,348 886.40 62.3 11,650 886.50 69.5 12,995 886.60 76.9 14,386 886.70 84.6 15,820 886.80 92.5 17,296 886.90 100.6 18,819 887.00 109.0 20,385 887.10 117.6 21,992 887.20 126.4 23,643 887.30 135.4 25,322 887.40 144.5 27,028 887.50 153.8 28,763 887.60 163.2 30,526 887.70 172.8 32,315 887.80 182.5 34,133 887.90 192.4 35,978 888.00 202.4 37,850 888.10 212.6 39,751 888.20 222.9 41,679 888.30 233.3 43,634 888.40 243.9 45,618 888.50 254.7 47,629 888.60 265.6 49,667 888.70 276.6 51,734 888.80 287.8 53,828 888.90 299.2 55,949 889.00 310.7 58,098 889.10 322.3 60,276 889.20 334.1 62,479 889.30 346.1 64,712 889.40 358.1 66,972 889.50 370.4 69,259 889.60 382.8 71,574 889.70 395.3 73,918 889.80 408.0 76,287 889.90 420.8 78,686 890.00 433.8 81,112 890.10 446.9 83,565 Elevation (feet) End-Area (sq-ft) Storage (cubic-feet) 890.20 460.1 86,046 890.30 473.6 88,555 890.40 487.1 91,091 890.50 500.8 93,655 890.60 514.7 96,247 890.70 528.7 98,866 890.80 542.9 101,513 890.90 557.2 104,188 891.00 571.6 106,888 MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 58HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Reach 4R: Southwest Drainage [40] Hint: Not Described (Outflow=Inflow) Inflow Area = 16.146 ac, 3.23% Impervious, Inflow Depth = 0.15" for 1.1 Inch Equiv. event Inflow = 2.06 cfs @ 12.33 hrs, Volume= 0.206 af Outflow = 2.06 cfs @ 12.33 hrs, Volume= 0.206 af, Atten= 0%, Lag= 0.0 min Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Reach 4R: Southwest Drainage Inflow Outflow Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)2 1 0 Inflow Area=16.146 ac 2.06 cfs 2.06 cfs MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 59HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Reach 5R: Upper Wetland 6 [40] Hint: Not Described (Outflow=Inflow) Inflow Area = 14.642 ac, 0.00% Impervious, Inflow Depth = 0.17" for 1.1 Inch Equiv. event Inflow = 2.13 cfs @ 12.31 hrs, Volume= 0.205 af Outflow = 2.13 cfs @ 12.31 hrs, Volume= 0.205 af, Atten= 0%, Lag= 0.0 min Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Reach 5R: Upper Wetland 6 Inflow Outflow Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)2 1 0 Inflow Area=14.642 ac 2.13 cfs 2.13 cfs MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 60HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Reach 6R: Bluff Creek Drainage [40] Hint: Not Described (Outflow=Inflow) Inflow Area = 80.819 ac, 0.64% Impervious, Inflow Depth = 0.13" for 1.1 Inch Equiv. event Inflow = 7.84 cfs @ 12.38 hrs, Volume= 0.897 af Outflow = 7.84 cfs @ 12.38 hrs, Volume= 0.897 af, Atten= 0%, Lag= 0.0 min Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Reach 6R: Bluff Creek Drainage Inflow Outflow Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)8 7 6 5 4 3 2 1 0 Inflow Area=80.819 ac 7.84 cfs 7.84 cfs MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 61HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Reach 8R: South Drainage [40] Hint: Not Described (Outflow=Inflow) Inflow Area = 48.462 ac, 0.00% Impervious, Inflow Depth = 0.12" for 1.1 Inch Equiv. event Inflow = 3.95 cfs @ 12.40 hrs, Volume= 0.487 af Outflow = 3.95 cfs @ 12.40 hrs, Volume= 0.487 af, Atten= 0%, Lag= 0.0 min Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Reach 8R: South Drainage Inflow Outflow Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)4 3 2 1 0 Inflow Area=48.462 ac 3.95 cfs 3.95 cfs MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 62HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Reach 9R: Wetland 4 Channel [40] Hint: Not Described (Outflow=Inflow) Inflow Area = 31.882 ac, 0.00% Impervious, Inflow Depth = 0.11" for 1.1 Inch Equiv. event Inflow = 2.39 cfs @ 12.46 hrs, Volume= 0.286 af Outflow = 2.39 cfs @ 12.46 hrs, Volume= 0.286 af, Atten= 0%, Lag= 0.0 min Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Reach 9R: Wetland 4 Channel Inflow Outflow Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)2 1 0 Inflow Area=31.882 ac 2.39 cfs 2.39 cfs MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 63HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Pond 6P: Wetland 3 Inflow Area = 7.837 ac, 5.86% Impervious, Inflow Depth = 0.27" for 1.1 Inch Equiv. event Inflow = 2.71 cfs @ 12.17 hrs, Volume= 0.177 af Outflow = 2.04 cfs @ 12.25 hrs, Volume= 0.177 af, Atten= 25%, Lag= 4.9 min Primary = 2.04 cfs @ 12.25 hrs, Volume= 0.177 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 920.74' @ 12.25 hrs Surf.Area= 11,563 sf Storage= 939 cf Plug-Flow detention time= 11.4 min calculated for 0.177 af (100% of inflow) Center-of-Mass det. time= 17.1 min ( 834.4 - 817.3 ) Volume Invert Avail.Storage Storage Description #1 920.58' 140,121 cf Custom Stage Data (Prismatic) Listed below (Recalc) Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 920.58 100 0 0 921.00 30,000 6,321 6,321 922.00 68,200 49,100 55,421 923.00 101,200 84,700 140,121 Device Routing Invert Outlet Devices #1 Primary 920.58'Asymmetrical Weir, C= 3.27 Offset (feet) 0.00 10.50 22.75 36.75 74.10 Height (feet) 2.09 0.33 0.10 0.00 2.09 Primary OutFlow Max=2.04 cfs @ 12.25 hrs HW=920.74' TW=907.65' (Dynamic Tailwater) 1=Asymmetrical Weir (Weir Controls 2.04 cfs @ 0.70 fps) MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 64HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Pond 6P: Wetland 3 Inflow Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)3 2 1 0 Inflow Area=7.837 ac Peak Elev=920.74' Storage=939 cf 2.71 cfs 2.04 cfs MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 65HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Stage-Area-Storage for Pond 6P: Wetland 3 Elevation (feet) Surface (sq-ft) Storage (cubic-feet) 920.58 100 0 920.63 3,660 94 920.68 7,219 366 920.73 10,779 816 920.78 14,338 1,444 920.83 17,898 2,250 920.88 21,457 3,234 920.93 25,017 4,395 920.98 28,576 5,735 921.03 31,146 7,238 921.08 33,056 8,843 921.13 34,966 10,544 921.18 36,876 12,340 921.23 38,786 14,231 921.28 40,696 16,218 921.33 42,606 18,301 921.38 44,516 20,479 921.43 46,426 22,753 921.48 48,336 25,122 921.53 50,246 27,586 921.58 52,156 30,146 921.63 54,066 32,802 921.68 55,976 35,553 921.73 57,886 38,399 921.78 59,796 41,341 921.83 61,706 44,379 921.88 63,616 47,512 921.93 65,526 50,741 921.98 67,436 54,065 922.03 69,190 57,482 922.08 70,840 60,983 922.13 72,490 64,566 922.18 74,140 68,232 922.23 75,790 71,980 922.28 77,440 75,811 922.33 79,090 79,724 922.38 80,740 83,720 922.43 82,390 87,798 922.48 84,040 91,959 922.53 85,690 96,202 922.58 87,340 100,528 922.63 88,990 104,936 922.68 90,640 109,427 922.73 92,290 114,000 922.78 93,940 118,656 922.83 95,590 123,394 922.88 97,240 128,215 922.93 98,890 133,118 922.98 100,540 138,104 MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 66HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Pond 7P: West - South Inflow Area = 12.319 ac, 4.23% Impervious, Inflow Depth = 0.20" for 1.1 Inch Equiv. event Inflow = 2.31 cfs @ 12.24 hrs, Volume= 0.206 af Outflow = 2.06 cfs @ 12.33 hrs, Volume= 0.206 af, Atten= 11%, Lag= 5.2 min Primary = 2.06 cfs @ 12.33 hrs, Volume= 0.206 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 907.69' @ 12.33 hrs Surf.Area= 1,663 sf Storage= 593 cf Plug-Flow detention time= (not calculated: outflow precedes inflow) Center-of-Mass det. time= 4.9 min ( 842.2 - 837.2 ) Volume Invert Avail.Storage Storage Description #1 906.98' 69,886 cf Custom Stage Data (Prismatic) Listed below (Recalc) Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 906.98 10 0 0 908.00 2,390 1,224 1,224 909.00 9,076 5,733 6,957 910.00 17,981 13,529 20,485 911.00 24,971 21,476 41,961 912.00 30,878 27,925 69,886 Device Routing Invert Outlet Devices #1 Primary 906.98'15.0" Round Culvert L= 48.8' RCP, end-section conforming to fill, Ke= 0.500 Inlet / Outlet Invert= 906.98' / 906.00' S= 0.0201 '/' Cc= 0.900 n= 0.013 Concrete pipe, straight & clean, Flow Area= 1.23 sf #2 Primary 911.22'Asymmetrical Weir, C= 3.27 Offset (feet) 0.00 12.00 18.00 28.00 49.00 88.00 Height (feet) 1.35 0.02 0.00 0.15 0.70 1.35 Primary OutFlow Max=2.06 cfs @ 12.33 hrs HW=907.69' TW=0.00' (Dynamic Tailwater) 1=Culvert (Inlet Controls 2.06 cfs @ 2.87 fps) 2=Asymmetrical Weir ( Controls 0.00 cfs) MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 67HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Pond 7P: West - South Inflow Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)2 1 0 Inflow Area=12.319 ac Peak Elev=907.69' Storage=593 cf 2.31 cfs 2.06 cfs MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 68HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Stage-Area-Storage for Pond 7P: West - South Elevation (feet) Surface (sq-ft) Storage (cubic-feet) 906.98 10 0 907.08 243 13 907.18 477 49 907.28 710 108 907.38 943 191 907.48 1,177 297 907.58 1,410 426 907.68 1,643 579 907.78 1,877 755 907.88 2,110 954 907.98 2,343 1,177 908.08 2,925 1,437 908.18 3,593 1,763 908.28 4,262 2,155 908.38 4,931 2,615 908.48 5,599 3,141 908.58 6,268 3,735 908.68 6,936 4,395 908.78 7,605 5,122 908.88 8,274 5,916 908.98 8,942 6,777 909.08 9,788 7,712 909.18 10,679 8,735 909.28 11,569 9,847 909.38 12,460 11,049 909.48 13,350 12,339 909.58 14,241 13,719 909.68 15,131 15,188 909.78 16,022 16,745 909.88 16,912 18,392 909.98 17,803 20,128 910.08 18,540 21,946 910.18 19,239 23,835 910.28 19,938 25,794 910.38 20,637 27,823 910.48 21,336 29,922 910.58 22,035 32,090 910.68 22,734 34,329 910.78 23,433 36,637 910.88 24,132 39,015 910.98 24,831 41,463 911.08 25,444 43,978 911.18 26,034 46,552 911.28 26,625 49,185 911.38 27,216 51,877 911.48 27,806 54,628 911.58 28,397 57,438 911.68 28,988 60,307 911.78 29,578 63,236 911.88 30,169 66,223 911.98 30,760 69,270 912.08 30,878 69,886 Elevation (feet) Surface (sq-ft) Storage (cubic-feet) 912.18 30,878 69,886 912.28 30,878 69,886 912.38 30,878 69,886 912.48 30,878 69,886 MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 69HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Pond 8P: Wetland 4 Inflow Area = 29.862 ac, 0.00% Impervious, Inflow Depth = 0.11" for 1.1 Inch Equiv. event Inflow = 2.37 cfs @ 12.44 hrs, Volume= 0.282 af Outflow = 2.36 cfs @ 12.47 hrs, Volume= 0.282 af, Atten= 0%, Lag= 1.3 min Primary = 2.36 cfs @ 12.47 hrs, Volume= 0.282 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 884.27' @ 12.47 hrs Surf.Area= 1,468 sf Storage= 315 cf Plug-Flow detention time= 7.8 min calculated for 0.282 af (100% of inflow) Center-of-Mass det. time= 6.8 min ( 893.5 - 886.7 ) Volume Invert Avail.Storage Storage Description #1 884.00' 37,633 cf Custom Stage Data (Prismatic) Listed below (Recalc) Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 884.00 870 0 0 884.50 1,980 713 713 885.00 3,500 1,370 2,083 886.00 7,800 5,650 7,733 887.00 14,000 10,900 18,633 888.00 24,000 19,000 37,633 Device Routing Invert Outlet Devices #1 Primary 884.03'Asymmetrical Weir, C= 3.27 Offset (feet) 0.00 51.00 133.60 176.00 217.30 239.00 Elev. (feet) 889.78 886.05 884.03 885.84 889.00 889.78 Primary OutFlow Max=2.36 cfs @ 12.47 hrs HW=884.27' TW=0.00' (Dynamic Tailwater) 1=Asymmetrical Weir (Weir Controls 2.36 cfs @ 0.64 fps) MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 70HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Pond 8P: Wetland 4 Inflow Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)2 1 0 Inflow Area=29.862 ac Peak Elev=884.27' Storage=315 cf 2.37 cfs 2.36 cfs MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 71HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Stage-Area-Storage for Pond 8P: Wetland 4 Elevation (feet) Surface (sq-ft) Storage (cubic-feet) 884.00 870 0 884.10 1,092 98 884.20 1,314 218 884.30 1,536 361 884.40 1,758 526 884.50 1,980 713 884.60 2,284 926 884.70 2,588 1,169 884.80 2,892 1,443 884.90 3,196 1,748 885.00 3,500 2,083 885.10 3,930 2,454 885.20 4,360 2,869 885.30 4,790 3,326 885.40 5,220 3,826 885.50 5,650 4,370 885.60 6,080 4,957 885.70 6,510 5,586 885.80 6,940 6,258 885.90 7,370 6,974 886.00 7,800 7,733 886.10 8,420 8,544 886.20 9,040 9,417 886.30 9,660 10,351 886.40 10,280 11,348 886.50 10,900 12,408 886.60 11,520 13,529 886.70 12,140 14,712 886.80 12,760 15,956 886.90 13,380 17,263 887.00 14,000 18,633 887.10 15,000 20,083 887.20 16,000 21,633 887.30 17,000 23,282 887.40 18,000 25,032 887.50 19,000 26,883 887.60 20,000 28,833 887.70 21,000 30,883 887.80 22,000 33,032 887.90 23,000 35,282 888.00 24,000 37,633 888.10 24,000 37,633 888.20 24,000 37,633 888.30 24,000 37,633 888.40 24,000 37,633 888.50 24,000 37,633 888.60 24,000 37,633 888.70 24,000 37,633 888.80 24,000 37,633 888.90 24,000 37,633 889.00 24,000 37,633 889.10 24,000 37,633 Elevation (feet) Surface (sq-ft) Storage (cubic-feet) 889.20 24,000 37,633 889.30 24,000 37,633 889.40 24,000 37,633 889.50 24,000 37,633 889.60 24,000 37,633 889.70 24,000 37,633 MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 72HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Time span=0.00-360.00 hrs, dt=0.01 hrs, 36001 points Runoff by SCS TR-20 method, UH=SCS, Weighted-Q Reach routing by Dyn-Stor-Ind method - Pond routing by Dyn-Stor-Ind method Runoff Area=67,165 sf 0.00% Impervious Runoff Depth=0.32"Subcatchment 5aS: To Lyman - North Flow Length=115' Tc=7.9 min CN=61 Runoff=0.39 cfs 0.041 af Runoff Area=10,548 sf 0.00% Impervious Runoff Depth=1.04"Subcatchment 5oS: From Lyman Flow Length=57' Slope=0.3330 '/' Tc=5.0 min CN=78 Runoff=0.46 cfs 0.021 af Runoff Area=627,245 sf 0.00% Impervious Runoff Depth=1.03"Subcatchment 5S: Northwest Flow Length=1,040' Tc=15.9 min CN=WQ Runoff=16.74 cfs 1.238 af Runoff Area=115,865 sf 17.26% Impervious Runoff Depth=0.94"Subcatchment 6oS: Offsite West - North Flow Length=431' Tc=7.3 min UI Adjusted CN=WQ Runoff=3.28 cfs 0.208 af Runoff Area=225,525 sf 0.00% Impervious Runoff Depth=1.23"Subcatchment 6S: West - North Flow Length=531' Tc=10.6 min CN=WQ Runoff=8.71 cfs 0.529 af Runoff Area=58,180 sf 4.64% Impervious Runoff Depth=1.08"Subcatchment 7oS: Offsite West - South Flow Length=37' Slope=0.1620 '/' Tc=5.0 min CN=WQ Runoff=2.59 cfs 0.120 af Runoff Area=137,060 sf 0.00% Impervious Runoff Depth=0.30"Subcatchment 7S: West Woods Flow Length=268' Tc=11.1 min CN=WQ Runoff=0.71 cfs 0.078 af Runoff Area=1,300,770 sf 0.00% Impervious Runoff Depth=0.75"Subcatchment 8S: South - Central to Flow Length=1,321' Tc=24.5 min CN=WQ Runoff=18.94 cfs 1.863 af Runoff Area=140,359 sf 0.00% Impervious Runoff Depth=0.16"Subcatchment 9.1S: East Woods Flow Length=530' Tc=15.2 min CN=55 Runoff=0.19 cfs 0.043 af Runoff Area=88,007 sf 0.00% Impervious Runoff Depth=0.28"Subcatchment 9.2S: Northeast Woods Flow Length=623' Tc=19.5 min CN=WQ Runoff=0.33 cfs 0.047 af Runoff Area=258,057 sf 0.00% Impervious Runoff Depth=1.09"Subcatchment 9.3S: South Flow Length=550' Tc=10.3 min CN=WQ Runoff=9.08 cfs 0.540 af Runoff Area=323,827 sf 0.00% Impervious Runoff Depth=1.08"Subcatchment 9.4S: Southeast Flow Length=912' Tc=16.5 min CN=WQ Runoff=8.97 cfs 0.669 af Runoff Area=165,080 sf 0.00% Impervious Runoff Depth=0.16"Subcatchment 10S: Southwest Flow Length=270' Tc=18.3 min CN=55 Runoff=0.22 cfs 0.051 af Runoff Area=1,162 sf 0.00% Impervious Runoff Depth=0.23"Subcatchment 29oS: North Offsite Tc=10.0 min CN=58 Runoff=0.00 cfs 0.001 af Runoff Area=1,628 sf 0.00% Impervious Runoff Depth=0.23"Subcatchment 36oS: Southwest Offsite Tc=10.0 min CN=58 Runoff=0.00 cfs 0.001 af Avg. Flow Depth=0.65' Max Vel=1.03 fps Inflow=17.27 cfs 1.300 afReach 3R: Lower Wetland 6 n=0.050 L=187.0' S=0.0053 '/' Capacity=3,072.14 cfs Outflow=16.61 cfs 1.300 af MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 73HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Inflow=6.79 cfs 0.987 afReach 4R: Southwest Drainage Outflow=6.79 cfs 0.987 af Inflow=16.92 cfs 1.259 afReach 5R: Upper Wetland 6 Outflow=16.92 cfs 1.259 af Inflow=54.73 cfs 5.450 afReach 6R: Bluff Creek Drainage Outflow=54.73 cfs 5.450 af Inflow=31.87 cfs 3.163 afReach 8R: South Drainage Outflow=31.87 cfs 3.163 af Inflow=19.25 cfs 1.910 afReach 9R: Wetland 4 Channel Outflow=19.25 cfs 1.910 af Peak Elev=920.89' Storage=3,555 cf Inflow=11.66 cfs 0.738 afPond 6P: Wetland 3 Outflow=9.04 cfs 0.738 af Peak Elev=908.85' Storage=5,658 cf Inflow=10.79 cfs 0.936 afPond 7P: West - South Outflow=6.59 cfs 0.936 af Peak Elev=884.58' Storage=882 cf Inflow=18.94 cfs 1.863 afPond 8P: Wetland 4 Outflow=18.93 cfs 1.863 af Total Runoff Area = 80.819 ac Runoff Volume = 5.451 af Average Runoff Depth = 0.81" 99.36% Pervious = 80.298 ac 0.64% Impervious = 0.521 ac MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 74HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 5aS: To Lyman - North Runoff = 0.39 cfs @ 12.16 hrs, Volume= 0.041 af, Depth= 0.32" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Area (sf) CN Description 67,165 61 >75% Grass cover, Good, HSG B 67,165 61 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 7.7 75 0.0600 0.16 Sheet Flow, Grass: Dense n= 0.240 P2= 2.87" 0.2 40 0.1500 2.71 Shallow Concentrated Flow, Short Grass Pasture Kv= 7.0 fps 7.9 115 Total Subcatchment 5aS: To Lyman - North Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.42 0.4 0.38 0.36 0.34 0.32 0.3 0.28 0.26 0.24 0.22 0.2 0.18 0.16 0.14 0.12 0.1 0.08 0.06 0.04 0.02 0 MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Runoff Area=67,165 sf Runoff Volume=0.041 af Runoff Depth=0.32" Flow Length=115' Tc=7.9 min CN=61 0.39 cfs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 75HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 5oS: From Lyman Runoff = 0.46 cfs @ 12.08 hrs, Volume= 0.021 af, Depth= 1.04" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Area (sf) CN Description 10,548 78 Meadow, non-grazed, HSG D 10,548 78 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 2.1 57 0.3330 0.44 Sheet Flow, Grass: Short n= 0.150 P2= 2.87" 2.9 Direct Entry, Make up to 5 minutes 5.0 57 Total Subcatchment 5oS: From Lyman Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.5 0.48 0.46 0.44 0.42 0.4 0.38 0.36 0.34 0.32 0.3 0.28 0.26 0.24 0.22 0.2 0.18 0.16 0.14 0.12 0.1 0.08 0.06 0.04 0.02 0 MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Runoff Area=10,548 sf Runoff Volume=0.021 af Runoff Depth=1.04" Flow Length=57' Slope=0.3330 '/' Tc=5.0 min CN=78 0.46 cfs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 76HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 5S: Northwest Runoff = 16.74 cfs @ 12.23 hrs, Volume= 1.238 af, Depth= 1.03" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Area (sf) CN Description 7,250 55 Woods, Good, HSG B 217,355 79 Pasture/grassland/range, Poor, HSG B 366,575 79 Pasture/grassland/range, Poor, HSG B 7,095 61 >75% Grass cover, Good, HSG B 28,970 55 Woods, Good, HSG B 627,245 Weighted Average 627,245 77 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 7.8 100 0.0300 0.21 Sheet Flow, Range n= 0.130 P2= 2.87" 4.5 419 0.0500 1.57 Shallow Concentrated Flow, Short Grass Pasture Kv= 7.0 fps 0.9 131 0.1220 2.44 Shallow Concentrated Flow, Short Grass Pasture Kv= 7.0 fps 2.7 390 0.0260 2.42 Shallow Concentrated Flow, Wetland Grassed Waterway Kv= 15.0 fps 15.9 1,040 Total MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 77HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Subcatchment 5S: Northwest Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Runoff Area=627,245 sf Runoff Volume=1.238 af Runoff Depth=1.03" Flow Length=1,040' Tc=15.9 min CN=WQ 16.74 cfs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 78HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 6oS: Offsite West - North Runoff = 3.28 cfs @ 12.11 hrs, Volume= 0.208 af, Depth= 0.94" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Area (sf) CN Adj Description 20,000 98 98 Unconnected roofs, HSG B 71,000 61 61 >75% Grass cover, Good, HSG B * 12,720 96 96 Wetland, Good, HSG D 12,145 58 58 Meadow, non-grazed, HSG B 115,865 Weighted Average 95,865 65 65 82.74% Pervious Area 20,000 98 98 17.26% Impervious Area 20,000 100.00% Unconnected Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 5.0 25 0.0200 0.08 Sheet Flow, Grass: Dense n= 0.240 P2= 2.87" 2.3 406 0.0390 2.96 Shallow Concentrated Flow, Grassed Waterway Kv= 15.0 fps 7.3 431 Total Subcatchment 6oS: Offsite West - North Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)3 2 1 0 MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Runoff Area=115,865 sf Runoff Volume=0.208 af Runoff Depth=0.94" Flow Length=431' Tc=7.3 min UI Adjusted CN=WQ 3.28 cfs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 79HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 6S: West - North Runoff = 8.71 cfs @ 12.15 hrs, Volume= 0.529 af, Depth= 1.23" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Area (sf) CN Description 2,000 77 Woods, Good, HSG D 4,000 55 Woods, Good, HSG B * 25,440 96 Wetland, Good, HSG D 194,085 79 Pasture/grassland/range, Poor, HSG B 225,525 Weighted Average 225,525 80 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 6.4 100 0.0500 0.26 Sheet Flow, Range n= 0.130 P2= 2.87" 3.5 348 0.0550 1.64 Shallow Concentrated Flow, Short Grass Pasture Kv= 7.0 fps 0.7 83 0.0170 1.96 Shallow Concentrated Flow, Wetland Grassed Waterway Kv= 15.0 fps 10.6 531 Total Subcatchment 6S: West - North Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)9 8 7 6 5 4 3 2 1 0 MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Runoff Area=225,525 sf Runoff Volume=0.529 af Runoff Depth=1.23" Flow Length=531' Tc=10.6 min CN=WQ 8.71 cfs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 80HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 7oS: Offsite West - South Runoff = 2.59 cfs @ 12.08 hrs, Volume= 0.120 af, Depth= 1.08" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Area (sf) CN Description 45,880 78 Meadow, non-grazed, HSG D 2,700 98 Unconnected roofs, HSG C 9,600 74 >75% Grass cover, Good, HSG C 58,180 Weighted Average 55,480 77 95.36% Pervious Area 2,700 98 4.64% Impervious Area 2,700 100.00% Unconnected Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 2.0 37 0.1620 0.30 Sheet Flow, Grass: Short n= 0.150 P2= 2.87" 3.0 Direct Entry, Make up to 5.0 minutes 5.0 37 Total Subcatchment 7oS: Offsite West - South Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)2 1 0 MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Runoff Area=58,180 sf Runoff Volume=0.120 af Runoff Depth=1.08" Flow Length=37' Slope=0.1620 '/' Tc=5.0 min CN=WQ 2.59 cfs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 81HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 7S: West Woods Runoff = 0.71 cfs @ 12.17 hrs, Volume= 0.078 af, Depth= 0.30" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Area (sf) CN Description 117,170 55 Woods, Good, HSG B 19,890 79 Pasture/grassland/range, Poor, HSG B 137,060 Weighted Average 137,060 58 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 8.4 50 0.0600 0.10 Sheet Flow, Woods: Light underbrush n= 0.400 P2= 2.87" 2.7 218 0.0710 1.33 Shallow Concentrated Flow, Woodland Kv= 5.0 fps 11.1 268 Total Subcatchment 7S: West Woods Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.75 0.7 0.65 0.6 0.55 0.5 0.45 0.4 0.35 0.3 0.25 0.2 0.15 0.1 0.05 0 MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Runoff Area=137,060 sf Runoff Volume=0.078 af Runoff Depth=0.30" Flow Length=268' Tc=11.1 min CN=WQ 0.71 cfs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 82HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 8S: South - Central to Wetland 4 Runoff = 18.94 cfs @ 12.36 hrs, Volume= 1.863 af, Depth= 0.75" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Area (sf) CN Description * 15,505 79 Wetland 5, Pasture/grassland/range, Poor, HSG B 21,030 55 Woods, Good, HSG B 185,110 79 Pasture/grassland/range, Poor, HSG B 460,890 55 Woods, Good, HSG B 618,235 79 Pasture/grassland/range, Poor, HSG B 1,300,770 Weighted Average 1,300,770 70 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 7.8 100 0.0300 0.21 Sheet Flow, Range n= 0.130 P2= 2.87" 15.2 1,028 0.0260 1.13 Shallow Concentrated Flow, Short Grass Pasture Kv= 7.0 fps 1.5 193 0.0200 2.12 Shallow Concentrated Flow, Wetland Grassed Waterway Kv= 15.0 fps 24.5 1,321 Total Subcatchment 8S: South - Central to Wetland 4 Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Runoff Area=1,300,770 sf Runoff Volume=1.863 af Runoff Depth=0.75" Flow Length=1,321' Tc=24.5 min CN=WQ 18.94 cfs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 83HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 9.1S: East Woods Runoff = 0.19 cfs @ 12.58 hrs, Volume= 0.043 af, Depth= 0.16" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Area (sf) CN Description 140,359 55 Woods, Good, HSG B 140,359 55 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 11.1 75 0.0670 0.11 Sheet Flow, Woods: Light underbrush n= 0.400 P2= 2.87" 4.1 455 0.1380 1.86 Shallow Concentrated Flow, Woodland Kv= 5.0 fps 15.2 530 Total Subcatchment 9.1S: East Woods Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.21 0.2 0.19 0.18 0.17 0.16 0.15 0.14 0.13 0.12 0.11 0.1 0.09 0.08 0.07 0.06 0.05 0.04 0.03 0.02 0.01 0 MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Runoff Area=140,359 sf Runoff Volume=0.043 af Runoff Depth=0.16" Flow Length=530' Tc=15.2 min CN=55 0.19 cfs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 84HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 9.2S: Northeast Woods Runoff = 0.33 cfs @ 12.33 hrs, Volume= 0.047 af, Depth= 0.28" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Area (sf) CN Description 76,845 55 Woods, Good, HSG B 11,162 79 Pasture/grassland/range, Poor, HSG B 88,007 Weighted Average 88,007 58 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 14.2 100 0.0650 0.12 Sheet Flow, Woods: Light underbrush n= 0.400 P2= 2.87" 5.3 523 0.1080 1.64 Shallow Concentrated Flow, Woodland Kv= 5.0 fps 19.5 623 Total Subcatchment 9.2S: Northeast Woods Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.36 0.34 0.32 0.3 0.28 0.26 0.24 0.22 0.2 0.18 0.16 0.14 0.12 0.1 0.08 0.06 0.04 0.02 0 MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Runoff Area=88,007 sf Runoff Volume=0.047 af Runoff Depth=0.28" Flow Length=623' Tc=19.5 min CN=WQ 0.33 cfs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 85HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 9.3S: South Runoff = 9.08 cfs @ 12.15 hrs, Volume= 0.540 af, Depth= 1.09" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Area (sf) CN Description 3,690 55 Woods, Good, HSG B 246,824 79 Pasture/grassland/range, Poor, HSG B 7,543 86 Pasture/grassland/range, Poor, HSG C 258,057 Weighted Average 258,057 79 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 6.5 90 0.0390 0.23 Sheet Flow, Range n= 0.130 P2= 2.87" 3.8 460 0.0850 2.04 Shallow Concentrated Flow, Short Grass Pasture Kv= 7.0 fps 10.3 550 Total Subcatchment 9.3S: South Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)10 9 8 7 6 5 4 3 2 1 0 MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Runoff Area=258,057 sf Runoff Volume=0.540 af Runoff Depth=1.09" Flow Length=550' Tc=10.3 min CN=WQ 9.08 cfs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 86HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 9.4S: Southeast Runoff = 8.97 cfs @ 12.23 hrs, Volume= 0.669 af, Depth= 1.08" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Area (sf) CN Description 4,560 55 Woods, Good, HSG B 2,090 58 Meadow, non-grazed, HSG B 313,772 79 Pasture/grassland/range, Poor, HSG B 3,405 86 Pasture/grassland/range, Poor, HSG C 323,827 Weighted Average 323,827 79 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 6.0 55 0.0180 0.15 Sheet Flow, Range n= 0.130 P2= 2.87" 10.5 857 0.0380 1.36 Shallow Concentrated Flow, Short Grass Pasture Kv= 7.0 fps 16.5 912 Total Subcatchment 9.4S: Southeast Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)10 9 8 7 6 5 4 3 2 1 0 MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Runoff Area=323,827 sf Runoff Volume=0.669 af Runoff Depth=1.08" Flow Length=912' Tc=16.5 min CN=WQ 8.97 cfs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 87HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 10S: Southwest Runoff = 0.22 cfs @ 12.61 hrs, Volume= 0.051 af, Depth= 0.16" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Area (sf) CN Description 165,080 55 Woods, Good, HSG B 165,080 55 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 16.0 75 0.0270 0.08 Sheet Flow, Woods: Light underbrush n= 0.400 P2= 2.87" 2.3 195 0.0820 1.43 Shallow Concentrated Flow, Woodland Kv= 5.0 fps 18.3 270 Total Subcatchment 10S: Southwest Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.24 0.23 0.22 0.21 0.2 0.19 0.18 0.17 0.16 0.15 0.14 0.13 0.12 0.11 0.1 0.09 0.08 0.07 0.06 0.05 0.04 0.03 0.02 0.01 0 MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Runoff Area=165,080 sf Runoff Volume=0.051 af Runoff Depth=0.16" Flow Length=270' Tc=18.3 min CN=55 0.22 cfs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 88HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 29oS: North Offsite Runoff = 0.00 cfs @ 12.32 hrs, Volume= 0.001 af, Depth= 0.23" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Area (sf) CN Description 1,162 58 Meadow, non-grazed, HSG B 1,162 58 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 10.0 Direct Entry, Subcatchment 29oS: North Offsite Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.004 0.004 0.003 0.003 0.003 0.003 0.003 0.002 0.002 0.002 0.002 0.002 0.001 0.001 0.001 0.001 0.001 0.000 0.000 0 MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Runoff Area=1,162 sf Runoff Volume=0.001 af Runoff Depth=0.23" Tc=10.0 min CN=58 0.00 cfs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 89HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 36oS: Southwest Offsite Runoff = 0.00 cfs @ 12.32 hrs, Volume= 0.001 af, Depth= 0.23" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Area (sf) CN Description 1,628 58 Meadow, non-grazed, HSG B 1,628 58 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 10.0 Direct Entry, Subcatchment 36oS: Southwest Offsite Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.005 0.005 0.004 0.004 0.003 0.003 0.002 0.002 0.001 0.001 0.000 0 MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Runoff Area=1,628 sf Runoff Volume=0.001 af Runoff Depth=0.23" Tc=10.0 min CN=58 0.00 cfs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 90HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Reach 3R: Lower Wetland 6 Inflow Area = 16.210 ac, 0.00% Impervious, Inflow Depth = 0.96" for 2y 24hr event Inflow = 17.27 cfs @ 12.22 hrs, Volume= 1.300 af Outflow = 16.61 cfs @ 12.27 hrs, Volume= 1.300 af, Atten= 4%, Lag= 2.5 min Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Max. Velocity= 1.03 fps, Min. Travel Time= 3.0 min Avg. Velocity = 0.43 fps, Avg. Travel Time= 7.3 min Peak Storage= 3,012 cf @ 12.27 hrs Average Depth at Peak Storage= 0.65' Bank-Full Depth= 5.99' Flow Area= 570.1 sf, Capacity= 3,072.14 cfs Custom cross-section, Length= 187.0' Slope= 0.0053 '/' (102 Elevation Intervals) Constant n= 0.050 Scattered brush, heavy weeds Inlet Invert= 885.00', Outlet Invert= 884.00' ‡ Offset Elevation Chan.Depth (feet) (feet) (feet) 0.00 890.40 0.00 43.10 886.55 3.85 85.60 884.41 5.99 126.20 885.14 5.26 145.10 890.40 0.00 Depth End Area Perim. Storage Discharge (feet) (sq-ft) (feet) (cubic-feet) (cfs) 0.00 0.0 0.0 0 0.00 0.73 20.1 55.1 3,761 22.32 2.14 121.1 88.4 22,648 324.64 5.99 570.1 146.1 106,618 3,072.14 MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 91HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Reach 3R: Lower Wetland 6 Inflow Outflow Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 Inflow Area=16.210 ac Avg. Flow Depth=0.65' Max Vel=1.03 fps n=0.050 L=187.0' S=0.0053 '/' Capacity=3,072.14 cfs 17.27 cfs 16.61 cfs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 92HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Stage-Area-Storage for Reach 3R: Lower Wetland 6 Elevation (feet) End-Area (sq-ft) Storage (cubic-feet) 885.00 0.0 0 885.10 0.4 76 885.20 1.5 288 885.30 3.4 635 885.40 6.1 1,135 885.50 9.5 1,770 885.60 13.6 2,541 885.70 18.5 3,463 885.80 24.0 4,494 885.90 29.8 5,576 886.00 35.9 6,704 886.10 42.1 7,875 886.20 48.6 9,088 886.30 55.3 10,348 886.40 62.3 11,650 886.50 69.5 12,995 886.60 76.9 14,386 886.70 84.6 15,820 886.80 92.5 17,296 886.90 100.6 18,819 887.00 109.0 20,385 887.10 117.6 21,992 887.20 126.4 23,643 887.30 135.4 25,322 887.40 144.5 27,028 887.50 153.8 28,763 887.60 163.2 30,526 887.70 172.8 32,315 887.80 182.5 34,133 887.90 192.4 35,978 888.00 202.4 37,850 888.10 212.6 39,751 888.20 222.9 41,679 888.30 233.3 43,634 888.40 243.9 45,618 888.50 254.7 47,629 888.60 265.6 49,667 888.70 276.6 51,734 888.80 287.8 53,828 888.90 299.2 55,949 889.00 310.7 58,098 889.10 322.3 60,276 889.20 334.1 62,479 889.30 346.1 64,712 889.40 358.1 66,972 889.50 370.4 69,259 889.60 382.8 71,574 889.70 395.3 73,918 889.80 408.0 76,287 889.90 420.8 78,686 890.00 433.8 81,112 890.10 446.9 83,565 Elevation (feet) End-Area (sq-ft) Storage (cubic-feet) 890.20 460.1 86,046 890.30 473.6 88,555 890.40 487.1 91,091 890.50 500.8 93,655 890.60 514.7 96,247 890.70 528.7 98,866 890.80 542.9 101,513 890.90 557.2 104,188 891.00 571.6 106,888 MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 93HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Reach 4R: Southwest Drainage [40] Hint: Not Described (Outflow=Inflow) Inflow Area = 16.146 ac, 3.23% Impervious, Inflow Depth = 0.73" for 2y 24hr event Inflow = 6.79 cfs @ 12.44 hrs, Volume= 0.987 af Outflow = 6.79 cfs @ 12.44 hrs, Volume= 0.987 af, Atten= 0%, Lag= 0.0 min Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Reach 4R: Southwest Drainage Inflow Outflow Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)7 6 5 4 3 2 1 0 Inflow Area=16.146 ac 6.79 cfs 6.79 cfs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 94HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Reach 5R: Upper Wetland 6 [40] Hint: Not Described (Outflow=Inflow) Inflow Area = 14.642 ac, 0.00% Impervious, Inflow Depth = 1.03" for 2y 24hr event Inflow = 16.92 cfs @ 12.22 hrs, Volume= 1.259 af Outflow = 16.92 cfs @ 12.22 hrs, Volume= 1.259 af, Atten= 0%, Lag= 0.0 min Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Reach 5R: Upper Wetland 6 Inflow Outflow Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 Inflow Area=14.642 ac 16.92 cfs 16.92 cfs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 95HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Reach 6R: Bluff Creek Drainage [40] Hint: Not Described (Outflow=Inflow) Inflow Area = 80.819 ac, 0.64% Impervious, Inflow Depth = 0.81" for 2y 24hr event Inflow = 54.73 cfs @ 12.28 hrs, Volume= 5.450 af Outflow = 54.73 cfs @ 12.28 hrs, Volume= 5.450 af, Atten= 0%, Lag= 0.0 min Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Reach 6R: Bluff Creek Drainage Inflow Outflow Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)60 55 50 45 40 35 30 25 20 15 10 5 0 Inflow Area=80.819 ac 54.73 cfs 54.73 cfs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 96HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Reach 8R: South Drainage [40] Hint: Not Described (Outflow=Inflow) Inflow Area = 48.462 ac, 0.00% Impervious, Inflow Depth = 0.78" for 2y 24hr event Inflow = 31.87 cfs @ 12.29 hrs, Volume= 3.163 af Outflow = 31.87 cfs @ 12.29 hrs, Volume= 3.163 af, Atten= 0%, Lag= 0.0 min Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Reach 8R: South Drainage Inflow Outflow Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)34 32 30 28 26 24 22 20 18 16 14 12 10 8 6 4 2 0 Inflow Area=48.462 ac 31.87 cfs 31.87 cfs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 97HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Reach 9R: Wetland 4 Channel [40] Hint: Not Described (Outflow=Inflow) Inflow Area = 31.882 ac, 0.00% Impervious, Inflow Depth = 0.72" for 2y 24hr event Inflow = 19.25 cfs @ 12.36 hrs, Volume= 1.910 af Outflow = 19.25 cfs @ 12.36 hrs, Volume= 1.910 af, Atten= 0%, Lag= 0.0 min Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Reach 9R: Wetland 4 Channel Inflow Outflow Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 Inflow Area=31.882 ac 19.25 cfs 19.25 cfs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 98HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Pond 6P: Wetland 3 Inflow Area = 7.837 ac, 5.86% Impervious, Inflow Depth = 1.13" for 2y 24hr event Inflow = 11.66 cfs @ 12.14 hrs, Volume= 0.738 af Outflow = 9.04 cfs @ 12.22 hrs, Volume= 0.738 af, Atten= 22%, Lag= 4.8 min Primary = 9.04 cfs @ 12.22 hrs, Volume= 0.738 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 920.89' @ 12.22 hrs Surf.Area= 22,498 sf Storage= 3,555 cf Plug-Flow detention time= 8.8 min calculated for 0.738 af (100% of inflow) Center-of-Mass det. time= 10.2 min ( 827.5 - 817.3 ) Volume Invert Avail.Storage Storage Description #1 920.58' 140,121 cf Custom Stage Data (Prismatic) Listed below (Recalc) Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 920.58 100 0 0 921.00 30,000 6,321 6,321 922.00 68,200 49,100 55,421 923.00 101,200 84,700 140,121 Device Routing Invert Outlet Devices #1 Primary 920.58'Asymmetrical Weir, C= 3.27 Offset (feet) 0.00 10.50 22.75 36.75 74.10 Height (feet) 2.09 0.33 0.10 0.00 2.09 Primary OutFlow Max=9.04 cfs @ 12.22 hrs HW=920.89' TW=908.58' (Dynamic Tailwater) 1=Asymmetrical Weir (Weir Controls 9.04 cfs @ 1.05 fps) MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 99HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Pond 6P: Wetland 3 Inflow Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)13 12 11 10 9 8 7 6 5 4 3 2 1 0 Inflow Area=7.837 ac Peak Elev=920.89' Storage=3,555 cf 11.66 cfs 9.04 cfs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 100HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Stage-Area-Storage for Pond 6P: Wetland 3 Elevation (feet) Surface (sq-ft) Storage (cubic-feet) 920.58 100 0 920.63 3,660 94 920.68 7,219 366 920.73 10,779 816 920.78 14,338 1,444 920.83 17,898 2,250 920.88 21,457 3,234 920.93 25,017 4,395 920.98 28,576 5,735 921.03 31,146 7,238 921.08 33,056 8,843 921.13 34,966 10,544 921.18 36,876 12,340 921.23 38,786 14,231 921.28 40,696 16,218 921.33 42,606 18,301 921.38 44,516 20,479 921.43 46,426 22,753 921.48 48,336 25,122 921.53 50,246 27,586 921.58 52,156 30,146 921.63 54,066 32,802 921.68 55,976 35,553 921.73 57,886 38,399 921.78 59,796 41,341 921.83 61,706 44,379 921.88 63,616 47,512 921.93 65,526 50,741 921.98 67,436 54,065 922.03 69,190 57,482 922.08 70,840 60,983 922.13 72,490 64,566 922.18 74,140 68,232 922.23 75,790 71,980 922.28 77,440 75,811 922.33 79,090 79,724 922.38 80,740 83,720 922.43 82,390 87,798 922.48 84,040 91,959 922.53 85,690 96,202 922.58 87,340 100,528 922.63 88,990 104,936 922.68 90,640 109,427 922.73 92,290 114,000 922.78 93,940 118,656 922.83 95,590 123,394 922.88 97,240 128,215 922.93 98,890 133,118 922.98 100,540 138,104 MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 101HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Pond 7P: West - South Inflow Area = 12.319 ac, 4.23% Impervious, Inflow Depth = 0.91" for 2y 24hr event Inflow = 10.79 cfs @ 12.20 hrs, Volume= 0.936 af Outflow = 6.59 cfs @ 12.43 hrs, Volume= 0.936 af, Atten= 39%, Lag= 13.5 min Primary = 6.59 cfs @ 12.43 hrs, Volume= 0.936 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 908.85' @ 12.43 hrs Surf.Area= 8,063 sf Storage= 5,658 cf Plug-Flow detention time= (not calculated: outflow precedes inflow) Center-of-Mass det. time= 7.7 min ( 840.8 - 833.1 ) Volume Invert Avail.Storage Storage Description #1 906.98' 69,886 cf Custom Stage Data (Prismatic) Listed below (Recalc) Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 906.98 10 0 0 908.00 2,390 1,224 1,224 909.00 9,076 5,733 6,957 910.00 17,981 13,529 20,485 911.00 24,971 21,476 41,961 912.00 30,878 27,925 69,886 Device Routing Invert Outlet Devices #1 Primary 906.98'15.0" Round Culvert L= 48.8' RCP, end-section conforming to fill, Ke= 0.500 Inlet / Outlet Invert= 906.98' / 906.00' S= 0.0201 '/' Cc= 0.900 n= 0.013 Concrete pipe, straight & clean, Flow Area= 1.23 sf #2 Primary 911.22'Asymmetrical Weir, C= 3.27 Offset (feet) 0.00 12.00 18.00 28.00 49.00 88.00 Height (feet) 1.35 0.02 0.00 0.15 0.70 1.35 Primary OutFlow Max=6.59 cfs @ 12.43 hrs HW=908.85' TW=0.00' (Dynamic Tailwater) 1=Culvert (Inlet Controls 6.59 cfs @ 5.37 fps) 2=Asymmetrical Weir ( Controls 0.00 cfs) MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 102HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Pond 7P: West - South Inflow Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)12 11 10 9 8 7 6 5 4 3 2 1 0 Inflow Area=12.319 ac Peak Elev=908.85' Storage=5,658 cf 10.79 cfs 6.59 cfs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 103HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Stage-Area-Storage for Pond 7P: West - South Elevation (feet) Surface (sq-ft) Storage (cubic-feet) 906.98 10 0 907.08 243 13 907.18 477 49 907.28 710 108 907.38 943 191 907.48 1,177 297 907.58 1,410 426 907.68 1,643 579 907.78 1,877 755 907.88 2,110 954 907.98 2,343 1,177 908.08 2,925 1,437 908.18 3,593 1,763 908.28 4,262 2,155 908.38 4,931 2,615 908.48 5,599 3,141 908.58 6,268 3,735 908.68 6,936 4,395 908.78 7,605 5,122 908.88 8,274 5,916 908.98 8,942 6,777 909.08 9,788 7,712 909.18 10,679 8,735 909.28 11,569 9,847 909.38 12,460 11,049 909.48 13,350 12,339 909.58 14,241 13,719 909.68 15,131 15,188 909.78 16,022 16,745 909.88 16,912 18,392 909.98 17,803 20,128 910.08 18,540 21,946 910.18 19,239 23,835 910.28 19,938 25,794 910.38 20,637 27,823 910.48 21,336 29,922 910.58 22,035 32,090 910.68 22,734 34,329 910.78 23,433 36,637 910.88 24,132 39,015 910.98 24,831 41,463 911.08 25,444 43,978 911.18 26,034 46,552 911.28 26,625 49,185 911.38 27,216 51,877 911.48 27,806 54,628 911.58 28,397 57,438 911.68 28,988 60,307 911.78 29,578 63,236 911.88 30,169 66,223 911.98 30,760 69,270 912.08 30,878 69,886 Elevation (feet) Surface (sq-ft) Storage (cubic-feet) 912.18 30,878 69,886 912.28 30,878 69,886 912.38 30,878 69,886 912.48 30,878 69,886 MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 104HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Pond 8P: Wetland 4 Inflow Area = 29.862 ac, 0.00% Impervious, Inflow Depth = 0.75" for 2y 24hr event Inflow = 18.94 cfs @ 12.36 hrs, Volume= 1.863 af Outflow = 18.93 cfs @ 12.36 hrs, Volume= 1.863 af, Atten= 0%, Lag= 0.3 min Primary = 18.93 cfs @ 12.36 hrs, Volume= 1.863 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 884.58' @ 12.36 hrs Surf.Area= 2,225 sf Storage= 882 cf Plug-Flow detention time= 2.3 min calculated for 1.863 af (100% of inflow) Center-of-Mass det. time= 2.2 min ( 862.9 - 860.6 ) Volume Invert Avail.Storage Storage Description #1 884.00' 37,633 cf Custom Stage Data (Prismatic) Listed below (Recalc) Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 884.00 870 0 0 884.50 1,980 713 713 885.00 3,500 1,370 2,083 886.00 7,800 5,650 7,733 887.00 14,000 10,900 18,633 888.00 24,000 19,000 37,633 Device Routing Invert Outlet Devices #1 Primary 884.03'Asymmetrical Weir, C= 3.27 Offset (feet) 0.00 51.00 133.60 176.00 217.30 239.00 Elev. (feet) 889.78 886.05 884.03 885.84 889.00 889.78 Primary OutFlow Max=18.93 cfs @ 12.36 hrs HW=884.58' TW=0.00' (Dynamic Tailwater) 1=Asymmetrical Weir (Weir Controls 18.93 cfs @ 0.97 fps) MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 105HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Pond 8P: Wetland 4 Inflow Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 Inflow Area=29.862 ac Peak Elev=884.58' Storage=882 cf 18.94 cfs 18.93 cfs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 106HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Stage-Area-Storage for Pond 8P: Wetland 4 Elevation (feet) Surface (sq-ft) Storage (cubic-feet) 884.00 870 0 884.10 1,092 98 884.20 1,314 218 884.30 1,536 361 884.40 1,758 526 884.50 1,980 713 884.60 2,284 926 884.70 2,588 1,169 884.80 2,892 1,443 884.90 3,196 1,748 885.00 3,500 2,083 885.10 3,930 2,454 885.20 4,360 2,869 885.30 4,790 3,326 885.40 5,220 3,826 885.50 5,650 4,370 885.60 6,080 4,957 885.70 6,510 5,586 885.80 6,940 6,258 885.90 7,370 6,974 886.00 7,800 7,733 886.10 8,420 8,544 886.20 9,040 9,417 886.30 9,660 10,351 886.40 10,280 11,348 886.50 10,900 12,408 886.60 11,520 13,529 886.70 12,140 14,712 886.80 12,760 15,956 886.90 13,380 17,263 887.00 14,000 18,633 887.10 15,000 20,083 887.20 16,000 21,633 887.30 17,000 23,282 887.40 18,000 25,032 887.50 19,000 26,883 887.60 20,000 28,833 887.70 21,000 30,883 887.80 22,000 33,032 887.90 23,000 35,282 888.00 24,000 37,633 888.10 24,000 37,633 888.20 24,000 37,633 888.30 24,000 37,633 888.40 24,000 37,633 888.50 24,000 37,633 888.60 24,000 37,633 888.70 24,000 37,633 888.80 24,000 37,633 888.90 24,000 37,633 889.00 24,000 37,633 889.10 24,000 37,633 Elevation (feet) Surface (sq-ft) Storage (cubic-feet) 889.20 24,000 37,633 889.30 24,000 37,633 889.40 24,000 37,633 889.50 24,000 37,633 889.60 24,000 37,633 889.70 24,000 37,633 MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 107HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Time span=0.00-360.00 hrs, dt=0.01 hrs, 36001 points Runoff by SCS TR-20 method, UH=SCS, Weighted-Q Reach routing by Dyn-Stor-Ind method - Pond routing by Dyn-Stor-Ind method Runoff Area=67,165 sf 0.00% Impervious Runoff Depth=6.96"Subcatchment 5aS: To Lyman - North Flow Length=115' Tc=7.9 min AMC Adjusted CN=98 Runoff=0.29 cfs 0.894 af Runoff Area=10,548 sf 0.00% Impervious Runoff Depth=6.96"Subcatchment 5oS: From Lyman Flow Length=57' Slope=0.3330 '/' Tc=5.0 min AMC Adjusted CN=98 Runoff=0.05 cfs 0.140 af Runoff Area=627,245 sf 0.00% Impervious Runoff Depth=6.96"Subcatchment 5S: Northwest Flow Length=1,040' Tc=15.9 min AMC Adjusted CN=WQ Runoff=2.74 cfs 8.353 af Runoff Area=115,865 sf 17.26% Impervious Runoff Depth=6.96"Subcatchment 6oS: Offsite West - North Flow Length=431' Tc=7.3 min AMC UI Adjusted CN=WQ Runoff=0.51 cfs 1.543 af Runoff Area=225,525 sf 0.00% Impervious Runoff Depth=6.96"Subcatchment 6S: West - North Flow Length=531' Tc=10.6 min AMC Adjusted CN=WQ Runoff=0.99 cfs 3.003 af Runoff Area=58,180 sf 4.64% Impervious Runoff Depth=6.96"Subcatchment 7oS: Offsite West - South Flow Length=37' Slope=0.1620 '/' Tc=5.0 min AMC UI Adjusted CN=WQ Runoff=0.26 cfs 0.775 af Runoff Area=137,060 sf 0.00% Impervious Runoff Depth=6.96"Subcatchment 7S: West Woods Flow Length=268' Tc=11.1 min AMC Adjusted CN=WQ Runoff=0.60 cfs 1.825 af Runoff Area=1,300,770 sf 0.00% Impervious Runoff Depth=6.96"Subcatchment 8S: South - Central to Flow Length=1,321' Tc=24.5 min AMC Adjusted CN=WQ Runoff=5.66 cfs 17.322 af Runoff Area=140,359 sf 0.00% Impervious Runoff Depth=6.96"Subcatchment 9.1S: East Woods Flow Length=530' Tc=15.2 min AMC Adjusted CN=98 Runoff=0.61 cfs 1.869 af Runoff Area=88,007 sf 0.00% Impervious Runoff Depth=6.96"Subcatchment 9.2S: Northeast Woods Flow Length=623' Tc=19.5 min AMC Adjusted CN=WQ Runoff=0.38 cfs 1.172 af Runoff Area=258,057 sf 0.00% Impervious Runoff Depth=6.96"Subcatchment 9.3S: South Flow Length=550' Tc=10.3 min AMC Adjusted CN=WQ Runoff=1.13 cfs 3.436 af Runoff Area=323,827 sf 0.00% Impervious Runoff Depth=6.96"Subcatchment 9.4S: Southeast Flow Length=912' Tc=16.5 min AMC Adjusted CN=WQ Runoff=1.41 cfs 4.312 af Runoff Area=165,080 sf 0.00% Impervious Runoff Depth=6.96"Subcatchment 10S: Southwest Flow Length=270' Tc=18.3 min AMC Adjusted CN=98 Runoff=0.72 cfs 2.198 af Runoff Area=1,162 sf 0.00% Impervious Runoff Depth=6.96"Subcatchment 29oS: North Offsite Tc=10.0 min AMC Adjusted CN=98 Runoff=0.01 cfs 0.015 af Runoff Area=1,628 sf 0.00% Impervious Runoff Depth=6.96"Subcatchment 36oS: Southwest Offsite Tc=10.0 min AMC Adjusted CN=98 Runoff=0.01 cfs 0.022 af Avg. Flow Depth=0.35' Max Vel=0.68 fps Inflow=3.09 cfs 9.403 afReach 3R: Lower Wetland 6 n=0.050 L=187.0' S=0.0053 '/' Capacity=3,072.14 cfs Outflow=3.08 cfs 9.403 af MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 108HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Inflow=3.06 cfs 9.366 afReach 4R: Southwest Drainage Outflow=3.06 cfs 9.366 af Inflow=2.79 cfs 8.493 afReach 5R: Upper Wetland 6 Outflow=2.79 cfs 8.493 af Inflow=15.33 cfs 46.880 afReach 6R: Bluff Creek Drainage Outflow=15.33 cfs 46.880 af Inflow=9.19 cfs 28.111 afReach 8R: South Drainage Outflow=9.19 cfs 28.111 af Inflow=6.04 cfs 18.493 afReach 9R: Wetland 4 Channel Outflow=6.04 cfs 18.493 af Peak Elev=920.72' Storage=717 cf Inflow=1.50 cfs 4.546 afPond 6P: Wetland 3 Outflow=1.49 cfs 4.546 af Peak Elev=907.74' Storage=688 cf Inflow=2.34 cfs 7.146 afPond 7P: West - South Outflow=2.34 cfs 7.146 af Peak Elev=884.37' Storage=473 cf Inflow=5.66 cfs 17.322 afPond 8P: Wetland 4 Outflow=5.66 cfs 17.321 af Total Runoff Area = 80.819 ac Runoff Volume = 46.880 af Average Runoff Depth = 6.96" 99.36% Pervious = 80.298 ac 0.64% Impervious = 0.521 ac MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 109HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 5aS: To Lyman - North Runoff = 0.29 cfs @ 121.28 hrs, Volume= 0.894 af, Depth= 6.96" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4 Area (sf) CN Adj Description 67,165 61 98 >75% Grass cover, Good, HSG B 67,165 Weighted Average 67,165 61 98 100.00% Pervious Area, AMC Adjusted Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 7.7 75 0.0600 0.16 Sheet Flow, Grass: Dense n= 0.240 P2= 2.87" 0.2 40 0.1500 2.71 Shallow Concentrated Flow, Short Grass Pasture Kv= 7.0 fps 7.9 115 Total Subcatchment 5aS: To Lyman - North Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.32 0.3 0.28 0.26 0.24 0.22 0.2 0.18 0.16 0.14 0.12 0.1 0.08 0.06 0.04 0.02 0 MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20" AMC=4 Runoff Area=67,165 sf Runoff Volume=0.894 af Runoff Depth=6.96" Flow Length=115' Tc=7.9 min AMC Adjusted CN=98 0.29 cfs MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 110HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 5oS: From Lyman Runoff = 0.05 cfs @ 121.24 hrs, Volume= 0.140 af, Depth= 6.96" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4 Area (sf) CN Adj Description 10,548 78 98 Meadow, non-grazed, HSG D 10,548 Weighted Average 10,548 78 98 100.00% Pervious Area, AMC Adjusted Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 2.1 57 0.3330 0.44 Sheet Flow, Grass: Short n= 0.150 P2= 2.87" 2.9 Direct Entry, Make up to 5 minutes 5.0 57 Total Subcatchment 5oS: From Lyman Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.05 0.048 0.046 0.044 0.042 0.04 0.038 0.036 0.034 0.032 0.03 0.028 0.026 0.024 0.022 0.02 0.018 0.016 0.014 0.012 0.01 0.008 0.006 0.004 0.002 0 MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20" AMC=4 Runoff Area=10,548 sf Runoff Volume=0.140 af Runoff Depth=6.96" Flow Length=57' Slope=0.3330 '/' Tc=5.0 min AMC Adjusted CN=98 0.05 cfs MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 111HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 5S: Northwest Runoff = 2.74 cfs @ 121.35 hrs, Volume= 8.353 af, Depth= 6.96" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4 Area (sf) CN Adj Description 7,250 55 98 Woods, Good, HSG B 217,355 79 98 Pasture/grassland/range, Poor, HSG B 366,575 79 98 Pasture/grassland/range, Poor, HSG B 7,095 61 98 >75% Grass cover, Good, HSG B 28,970 55 98 Woods, Good, HSG B 627,245 Weighted Average 627,245 77 98 100.00% Pervious Area, AMC Adjusted Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 7.8 100 0.0300 0.21 Sheet Flow, Range n= 0.130 P2= 2.87" 4.5 419 0.0500 1.57 Shallow Concentrated Flow, Short Grass Pasture Kv= 7.0 fps 0.9 131 0.1220 2.44 Shallow Concentrated Flow, Short Grass Pasture Kv= 7.0 fps 2.7 390 0.0260 2.42 Shallow Concentrated Flow, Wetland Grassed Waterway Kv= 15.0 fps 15.9 1,040 Total MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 112HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Subcatchment 5S: Northwest Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)3 2 1 0 MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20" AMC=4 Runoff Area=627,245 sf Runoff Volume=8.353 af Runoff Depth=6.96" Flow Length=1,040' Tc=15.9 min AMC Adjusted CN=WQ 2.74 cfs MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 113HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 6oS: Offsite West - North Runoff = 0.51 cfs @ 121.27 hrs, Volume= 1.543 af, Depth= 6.96" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4 Area (sf) CN Adj Description 20,000 98 98 Unconnected roofs, HSG B 71,000 61 98 >75% Grass cover, Good, HSG B * 12,720 96 98 Wetland, Good, HSG D 12,145 58 98 Meadow, non-grazed, HSG B 115,865 Weighted Average 95,865 65 98 82.74% Pervious Area, AMC Adjusted 20,000 98 98 17.26% Impervious Area, AMC Adjusted 20,000 100.00% Unconnected Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 5.0 25 0.0200 0.08 Sheet Flow, Grass: Dense n= 0.240 P2= 2.87" 2.3 406 0.0390 2.96 Shallow Concentrated Flow, Grassed Waterway Kv= 15.0 fps 7.3 431 Total Subcatchment 6oS: Offsite West - North Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.55 0.5 0.45 0.4 0.35 0.3 0.25 0.2 0.15 0.1 0.05 0 MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20" AMC=4 Runoff Area=115,865 sf Runoff Volume=1.543 af Runoff Depth=6.96" Flow Length=431' Tc=7.3 min AMC UI Adjusted CN=WQ 0.51 cfs MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 114HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 6S: West - North Runoff = 0.99 cfs @ 121.30 hrs, Volume= 3.003 af, Depth= 6.96" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4 Area (sf) CN Adj Description 2,000 77 98 Woods, Good, HSG D 4,000 55 98 Woods, Good, HSG B * 25,440 96 98 Wetland, Good, HSG D 194,085 79 98 Pasture/grassland/range, Poor, HSG B 225,525 Weighted Average 225,525 80 98 100.00% Pervious Area, AMC Adjusted Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 6.4 100 0.0500 0.26 Sheet Flow, Range n= 0.130 P2= 2.87" 3.5 348 0.0550 1.64 Shallow Concentrated Flow, Short Grass Pasture Kv= 7.0 fps 0.7 83 0.0170 1.96 Shallow Concentrated Flow, Wetland Grassed Waterway Kv= 15.0 fps 10.6 531 Total Subcatchment 6S: West - North Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)1 0 MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20" AMC=4 Runoff Area=225,525 sf Runoff Volume=3.003 af Runoff Depth=6.96" Flow Length=531' Tc=10.6 min AMC Adjusted CN=WQ 0.99 cfs MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 115HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 7oS: Offsite West - South Runoff = 0.26 cfs @ 121.24 hrs, Volume= 0.775 af, Depth= 6.96" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4 Area (sf) CN Adj Description 45,880 78 98 Meadow, non-grazed, HSG D 2,700 98 98 Unconnected roofs, HSG C 9,600 74 98 >75% Grass cover, Good, HSG C 58,180 Weighted Average 55,480 77 98 95.36% Pervious Area, AMC Adjusted 2,700 98 98 4.64% Impervious Area, AMC Adjusted 2,700 100.00% Unconnected Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 2.0 37 0.1620 0.30 Sheet Flow, Grass: Short n= 0.150 P2= 2.87" 3.0 Direct Entry, Make up to 5.0 minutes 5.0 37 Total Subcatchment 7oS: Offsite West - South Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.28 0.26 0.24 0.22 0.2 0.18 0.16 0.14 0.12 0.1 0.08 0.06 0.04 0.02 0 MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20" AMC=4 Runoff Area=58,180 sf Runoff Volume=0.775 af Runoff Depth=6.96" Flow Length=37' Slope=0.1620 '/' Tc=5.0 min AMC UI Adjusted CN=WQ 0.26 cfs MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 116HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 7S: West Woods Runoff = 0.60 cfs @ 121.30 hrs, Volume= 1.825 af, Depth= 6.96" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4 Area (sf) CN Adj Description 117,170 55 98 Woods, Good, HSG B 19,890 79 98 Pasture/grassland/range, Poor, HSG B 137,060 Weighted Average 137,060 58 98 100.00% Pervious Area, AMC Adjusted Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 8.4 50 0.0600 0.10 Sheet Flow, Woods: Light underbrush n= 0.400 P2= 2.87" 2.7 218 0.0710 1.33 Shallow Concentrated Flow, Woodland Kv= 5.0 fps 11.1 268 Total Subcatchment 7S: West Woods Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.65 0.6 0.55 0.5 0.45 0.4 0.35 0.3 0.25 0.2 0.15 0.1 0.05 0 MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20" AMC=4 Runoff Area=137,060 sf Runoff Volume=1.825 af Runoff Depth=6.96" Flow Length=268' Tc=11.1 min AMC Adjusted CN=WQ 0.60 cfs MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 117HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 8S: South - Central to Wetland 4 Runoff = 5.66 cfs @ 121.44 hrs, Volume= 17.322 af, Depth= 6.96" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4 Area (sf) CN Adj Description * 15,505 79 98 Wetland 5, Pasture/grassland/range, Poor, HSG B 21,030 55 98 Woods, Good, HSG B 185,110 79 98 Pasture/grassland/range, Poor, HSG B 460,890 55 98 Woods, Good, HSG B 618,235 79 98 Pasture/grassland/range, Poor, HSG B 1,300,770 Weighted Average 1,300,770 70 98 100.00% Pervious Area, AMC Adjusted Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 7.8 100 0.0300 0.21 Sheet Flow, Range n= 0.130 P2= 2.87" 15.2 1,028 0.0260 1.13 Shallow Concentrated Flow, Short Grass Pasture Kv= 7.0 fps 1.5 193 0.0200 2.12 Shallow Concentrated Flow, Wetland Grassed Waterway Kv= 15.0 fps 24.5 1,321 Total Subcatchment 8S: South - Central to Wetland 4 Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)6 5 4 3 2 1 0 MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20" AMC=4 Runoff Area=1,300,770 sf Runoff Volume=17.322 af Runoff Depth=6.96" Flow Length=1,321' Tc=24.5 min AMC Adjusted CN=WQ 5.66 cfs MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 118HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 9.1S: East Woods Runoff = 0.61 cfs @ 121.35 hrs, Volume= 1.869 af, Depth= 6.96" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4 Area (sf) CN Adj Description 140,359 55 98 Woods, Good, HSG B 140,359 Weighted Average 140,359 55 98 100.00% Pervious Area, AMC Adjusted Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 11.1 75 0.0670 0.11 Sheet Flow, Woods: Light underbrush n= 0.400 P2= 2.87" 4.1 455 0.1380 1.86 Shallow Concentrated Flow, Woodland Kv= 5.0 fps 15.2 530 Total Subcatchment 9.1S: East Woods Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.65 0.6 0.55 0.5 0.45 0.4 0.35 0.3 0.25 0.2 0.15 0.1 0.05 0 MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20" AMC=4 Runoff Area=140,359 sf Runoff Volume=1.869 af Runoff Depth=6.96" Flow Length=530' Tc=15.2 min AMC Adjusted CN=98 0.61 cfs MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 119HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 9.2S: Northeast Woods Runoff = 0.38 cfs @ 121.40 hrs, Volume= 1.172 af, Depth= 6.96" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4 Area (sf) CN Adj Description 76,845 55 98 Woods, Good, HSG B 11,162 79 98 Pasture/grassland/range, Poor, HSG B 88,007 Weighted Average 88,007 58 98 100.00% Pervious Area, AMC Adjusted Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 14.2 100 0.0650 0.12 Sheet Flow, Woods: Light underbrush n= 0.400 P2= 2.87" 5.3 523 0.1080 1.64 Shallow Concentrated Flow, Woodland Kv= 5.0 fps 19.5 623 Total Subcatchment 9.2S: Northeast Woods Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.42 0.4 0.38 0.36 0.34 0.32 0.3 0.28 0.26 0.24 0.22 0.2 0.18 0.16 0.14 0.12 0.1 0.08 0.06 0.04 0.02 0 MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20" AMC=4 Runoff Area=88,007 sf Runoff Volume=1.172 af Runoff Depth=6.96" Flow Length=623' Tc=19.5 min AMC Adjusted CN=WQ 0.38 cfs MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 120HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 9.3S: South Runoff = 1.13 cfs @ 121.30 hrs, Volume= 3.436 af, Depth= 6.96" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4 Area (sf) CN Adj Description 3,690 55 98 Woods, Good, HSG B 246,824 79 98 Pasture/grassland/range, Poor, HSG B 7,543 86 98 Pasture/grassland/range, Poor, HSG C 258,057 Weighted Average 258,057 79 98 100.00% Pervious Area, AMC Adjusted Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 6.5 90 0.0390 0.23 Sheet Flow, Range n= 0.130 P2= 2.87" 3.8 460 0.0850 2.04 Shallow Concentrated Flow, Short Grass Pasture Kv= 7.0 fps 10.3 550 Total Subcatchment 9.3S: South Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)1 0 MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20" AMC=4 Runoff Area=258,057 sf Runoff Volume=3.436 af Runoff Depth=6.96" Flow Length=550' Tc=10.3 min AMC Adjusted CN=WQ 1.13 cfs MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 121HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 9.4S: Southeast Runoff = 1.41 cfs @ 121.35 hrs, Volume= 4.312 af, Depth= 6.96" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4 Area (sf) CN Adj Description 4,560 55 98 Woods, Good, HSG B 2,090 58 98 Meadow, non-grazed, HSG B 313,772 79 98 Pasture/grassland/range, Poor, HSG B 3,405 86 98 Pasture/grassland/range, Poor, HSG C 323,827 Weighted Average 323,827 79 98 100.00% Pervious Area, AMC Adjusted Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 6.0 55 0.0180 0.15 Sheet Flow, Range n= 0.130 P2= 2.87" 10.5 857 0.0380 1.36 Shallow Concentrated Flow, Short Grass Pasture Kv= 7.0 fps 16.5 912 Total Subcatchment 9.4S: Southeast Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)1 0 MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20" AMC=4 Runoff Area=323,827 sf Runoff Volume=4.312 af Runoff Depth=6.96" Flow Length=912' Tc=16.5 min AMC Adjusted CN=WQ 1.41 cfs MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 122HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 10S: Southwest Runoff = 0.72 cfs @ 121.37 hrs, Volume= 2.198 af, Depth= 6.96" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4 Area (sf) CN Adj Description 165,080 55 98 Woods, Good, HSG B 165,080 Weighted Average 165,080 55 98 100.00% Pervious Area, AMC Adjusted Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 16.0 75 0.0270 0.08 Sheet Flow, Woods: Light underbrush n= 0.400 P2= 2.87" 2.3 195 0.0820 1.43 Shallow Concentrated Flow, Woodland Kv= 5.0 fps 18.3 270 Total Subcatchment 10S: Southwest Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.8 0.75 0.7 0.65 0.6 0.55 0.5 0.45 0.4 0.35 0.3 0.25 0.2 0.15 0.1 0.05 0 MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20" AMC=4 Runoff Area=165,080 sf Runoff Volume=2.198 af Runoff Depth=6.96" Flow Length=270' Tc=18.3 min AMC Adjusted CN=98 0.72 cfs MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 123HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 29oS: North Offsite Runoff = 0.01 cfs @ 121.30 hrs, Volume= 0.015 af, Depth= 6.96" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4 Area (sf) CN Adj Description 1,162 58 98 Meadow, non-grazed, HSG B 1,162 Weighted Average 1,162 58 98 100.00% Pervious Area, AMC Adjusted Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 10.0 Direct Entry, Subcatchment 29oS: North Offsite Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.005 0.005 0.004 0.004 0.003 0.003 0.002 0.002 0.001 0.001 0.000 0 MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20" AMC=4 Runoff Area=1,162 sf Runoff Volume=0.015 af Runoff Depth=6.96" Tc=10.0 min AMC Adjusted CN=98 0.01 cfs MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 124HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 36oS: Southwest Offsite Runoff = 0.01 cfs @ 121.30 hrs, Volume= 0.022 af, Depth= 6.96" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4 Area (sf) CN Adj Description 1,628 58 98 Meadow, non-grazed, HSG B 1,628 Weighted Average 1,628 58 98 100.00% Pervious Area, AMC Adjusted Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 10.0 Direct Entry, Subcatchment 36oS: Southwest Offsite Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.007 0.007 0.006 0.006 0.005 0.005 0.004 0.004 0.003 0.003 0.002 0.002 0.001 0.001 0.000 0 MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20" AMC=4 Runoff Area=1,628 sf Runoff Volume=0.022 af Runoff Depth=6.96" Tc=10.0 min AMC Adjusted CN=98 0.01 cfs MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 125HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Reach 3R: Lower Wetland 6 Inflow Area = 16.210 ac, 0.00% Impervious, Inflow Depth = 6.96" for 10 day snowmelt event Inflow = 3.09 cfs @ 121.35 hrs, Volume= 9.403 af Outflow = 3.08 cfs @ 121.40 hrs, Volume= 9.403 af, Atten= 0%, Lag= 2.7 min Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Max. Velocity= 0.68 fps, Min. Travel Time= 4.6 min Avg. Velocity = 0.41 fps, Avg. Travel Time= 7.5 min Peak Storage= 849 cf @ 121.40 hrs Average Depth at Peak Storage= 0.35' Bank-Full Depth= 5.99' Flow Area= 570.1 sf, Capacity= 3,072.14 cfs Custom cross-section, Length= 187.0' Slope= 0.0053 '/' (102 Elevation Intervals) Constant n= 0.050 Scattered brush, heavy weeds Inlet Invert= 885.00', Outlet Invert= 884.00' ‡ Offset Elevation Chan.Depth (feet) (feet) (feet) 0.00 890.40 0.00 43.10 886.55 3.85 85.60 884.41 5.99 126.20 885.14 5.26 145.10 890.40 0.00 Depth End Area Perim. Storage Discharge (feet) (sq-ft) (feet) (cubic-feet) (cfs) 0.00 0.0 0.0 0 0.00 0.73 20.1 55.1 3,761 22.32 2.14 121.1 88.4 22,648 324.64 5.99 570.1 146.1 106,618 3,072.14 MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 126HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Reach 3R: Lower Wetland 6 Inflow Outflow Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)3 2 1 0 Inflow Area=16.210 ac Avg. Flow Depth=0.35' Max Vel=0.68 fps n=0.050 L=187.0' S=0.0053 '/' Capacity=3,072.14 cfs 3.09 cfs 3.08 cfs MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 127HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Stage-Area-Storage for Reach 3R: Lower Wetland 6 Elevation (feet) End-Area (sq-ft) Storage (cubic-feet) 885.00 0.0 0 885.10 0.4 76 885.20 1.5 288 885.30 3.4 635 885.40 6.1 1,135 885.50 9.5 1,770 885.60 13.6 2,541 885.70 18.5 3,463 885.80 24.0 4,494 885.90 29.8 5,576 886.00 35.9 6,704 886.10 42.1 7,875 886.20 48.6 9,088 886.30 55.3 10,348 886.40 62.3 11,650 886.50 69.5 12,995 886.60 76.9 14,386 886.70 84.6 15,820 886.80 92.5 17,296 886.90 100.6 18,819 887.00 109.0 20,385 887.10 117.6 21,992 887.20 126.4 23,643 887.30 135.4 25,322 887.40 144.5 27,028 887.50 153.8 28,763 887.60 163.2 30,526 887.70 172.8 32,315 887.80 182.5 34,133 887.90 192.4 35,978 888.00 202.4 37,850 888.10 212.6 39,751 888.20 222.9 41,679 888.30 233.3 43,634 888.40 243.9 45,618 888.50 254.7 47,629 888.60 265.6 49,667 888.70 276.6 51,734 888.80 287.8 53,828 888.90 299.2 55,949 889.00 310.7 58,098 889.10 322.3 60,276 889.20 334.1 62,479 889.30 346.1 64,712 889.40 358.1 66,972 889.50 370.4 69,259 889.60 382.8 71,574 889.70 395.3 73,918 889.80 408.0 76,287 889.90 420.8 78,686 890.00 433.8 81,112 890.10 446.9 83,565 Elevation (feet) End-Area (sq-ft) Storage (cubic-feet) 890.20 460.1 86,046 890.30 473.6 88,555 890.40 487.1 91,091 890.50 500.8 93,655 890.60 514.7 96,247 890.70 528.7 98,866 890.80 542.9 101,513 890.90 557.2 104,188 891.00 571.6 106,888 MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 128HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Reach 4R: Southwest Drainage [40] Hint: Not Described (Outflow=Inflow) Inflow Area = 16.146 ac, 3.23% Impervious, Inflow Depth = 6.96" for 10 day snowmelt event Inflow = 3.06 cfs @ 121.41 hrs, Volume= 9.366 af Outflow = 3.06 cfs @ 121.41 hrs, Volume= 9.366 af, Atten= 0%, Lag= 0.0 min Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Reach 4R: Southwest Drainage Inflow Outflow Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)3 2 1 0 Inflow Area=16.146 ac 3.06 cfs 3.06 cfs MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 129HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Reach 5R: Upper Wetland 6 [40] Hint: Not Described (Outflow=Inflow) Inflow Area = 14.642 ac, 0.00% Impervious, Inflow Depth = 6.96" for 10 day snowmelt event Inflow = 2.79 cfs @ 121.35 hrs, Volume= 8.493 af Outflow = 2.79 cfs @ 121.35 hrs, Volume= 8.493 af, Atten= 0%, Lag= 0.0 min Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Reach 5R: Upper Wetland 6 Inflow Outflow Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)3 2 1 0 Inflow Area=14.642 ac 2.79 cfs 2.79 cfs MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 130HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Reach 6R: Bluff Creek Drainage [40] Hint: Not Described (Outflow=Inflow) Inflow Area = 80.819 ac, 0.64% Impervious, Inflow Depth = 6.96" for 10 day snowmelt event Inflow = 15.33 cfs @ 121.39 hrs, Volume= 46.880 af Outflow = 15.33 cfs @ 121.39 hrs, Volume= 46.880 af, Atten= 0%, Lag= 0.0 min Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Reach 6R: Bluff Creek Drainage Inflow Outflow Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 Inflow Area=80.819 ac 15.33 cfs 15.33 cfs MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 131HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Reach 8R: South Drainage [40] Hint: Not Described (Outflow=Inflow) Inflow Area = 48.462 ac, 0.00% Impervious, Inflow Depth = 6.96" for 10 day snowmelt event Inflow = 9.19 cfs @ 121.39 hrs, Volume= 28.111 af Outflow = 9.19 cfs @ 121.39 hrs, Volume= 28.111 af, Atten= 0%, Lag= 0.0 min Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Reach 8R: South Drainage Inflow Outflow Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)10 9 8 7 6 5 4 3 2 1 0 Inflow Area=48.462 ac 9.19 cfs 9.19 cfs MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 132HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Reach 9R: Wetland 4 Channel [40] Hint: Not Described (Outflow=Inflow) Inflow Area = 31.882 ac, 0.00% Impervious, Inflow Depth = 6.96" for 10 day snowmelt event Inflow = 6.04 cfs @ 121.45 hrs, Volume= 18.493 af Outflow = 6.04 cfs @ 121.45 hrs, Volume= 18.493 af, Atten= 0%, Lag= 0.0 min Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Reach 9R: Wetland 4 Channel Inflow Outflow Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)6 5 4 3 2 1 0 Inflow Area=31.882 ac 6.04 cfs 6.04 cfs MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 133HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Pond 6P: Wetland 3 Inflow Area = 7.837 ac, 5.86% Impervious, Inflow Depth = 6.96" for 10 day snowmelt event Inflow = 1.50 cfs @ 121.30 hrs, Volume= 4.546 af Outflow = 1.49 cfs @ 121.36 hrs, Volume= 4.546 af, Atten= 0%, Lag= 3.8 min Primary = 1.49 cfs @ 121.36 hrs, Volume= 4.546 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 920.72' @ 121.36 hrs Surf.Area= 10,101 sf Storage= 717 cf Plug-Flow detention time= 11.2 min calculated for 4.546 af (100% of inflow) Center-of-Mass det. time= 11.3 min ( 7,396.4 - 7,385.1 ) Volume Invert Avail.Storage Storage Description #1 920.58' 140,121 cf Custom Stage Data (Prismatic) Listed below (Recalc) Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 920.58 100 0 0 921.00 30,000 6,321 6,321 922.00 68,200 49,100 55,421 923.00 101,200 84,700 140,121 Device Routing Invert Outlet Devices #1 Primary 920.58'Asymmetrical Weir, C= 3.27 Offset (feet) 0.00 10.50 22.75 36.75 74.10 Height (feet) 2.09 0.33 0.10 0.00 2.09 Primary OutFlow Max=1.49 cfs @ 121.36 hrs HW=920.72' TW=907.74' (Dynamic Tailwater) 1=Asymmetrical Weir (Weir Controls 1.49 cfs @ 0.62 fps) MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 134HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Pond 6P: Wetland 3 Inflow Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)1 0 Inflow Area=7.837 ac Peak Elev=920.72' Storage=717 cf 1.50 cfs 1.49 cfs MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 135HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Stage-Area-Storage for Pond 6P: Wetland 3 Elevation (feet) Surface (sq-ft) Storage (cubic-feet) 920.58 100 0 920.63 3,660 94 920.68 7,219 366 920.73 10,779 816 920.78 14,338 1,444 920.83 17,898 2,250 920.88 21,457 3,234 920.93 25,017 4,395 920.98 28,576 5,735 921.03 31,146 7,238 921.08 33,056 8,843 921.13 34,966 10,544 921.18 36,876 12,340 921.23 38,786 14,231 921.28 40,696 16,218 921.33 42,606 18,301 921.38 44,516 20,479 921.43 46,426 22,753 921.48 48,336 25,122 921.53 50,246 27,586 921.58 52,156 30,146 921.63 54,066 32,802 921.68 55,976 35,553 921.73 57,886 38,399 921.78 59,796 41,341 921.83 61,706 44,379 921.88 63,616 47,512 921.93 65,526 50,741 921.98 67,436 54,065 922.03 69,190 57,482 922.08 70,840 60,983 922.13 72,490 64,566 922.18 74,140 68,232 922.23 75,790 71,980 922.28 77,440 75,811 922.33 79,090 79,724 922.38 80,740 83,720 922.43 82,390 87,798 922.48 84,040 91,959 922.53 85,690 96,202 922.58 87,340 100,528 922.63 88,990 104,936 922.68 90,640 109,427 922.73 92,290 114,000 922.78 93,940 118,656 922.83 95,590 123,394 922.88 97,240 128,215 922.93 98,890 133,118 922.98 100,540 138,104 MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 136HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Pond 7P: West - South Inflow Area = 12.319 ac, 4.23% Impervious, Inflow Depth = 6.96" for 10 day snowmelt event Inflow = 2.34 cfs @ 121.32 hrs, Volume= 7.146 af Outflow = 2.34 cfs @ 121.40 hrs, Volume= 7.146 af, Atten= 0%, Lag= 4.6 min Primary = 2.34 cfs @ 121.40 hrs, Volume= 7.146 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 907.74' @ 121.40 hrs Surf.Area= 1,792 sf Storage= 688 cf Plug-Flow detention time= 4.3 min calculated for 7.146 af (100% of inflow) Center-of-Mass det. time= 4.3 min ( 7,396.6 - 7,392.2 ) Volume Invert Avail.Storage Storage Description #1 906.98' 69,886 cf Custom Stage Data (Prismatic) Listed below (Recalc) Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 906.98 10 0 0 908.00 2,390 1,224 1,224 909.00 9,076 5,733 6,957 910.00 17,981 13,529 20,485 911.00 24,971 21,476 41,961 912.00 30,878 27,925 69,886 Device Routing Invert Outlet Devices #1 Primary 906.98'15.0" Round Culvert L= 48.8' RCP, end-section conforming to fill, Ke= 0.500 Inlet / Outlet Invert= 906.98' / 906.00' S= 0.0201 '/' Cc= 0.900 n= 0.013 Concrete pipe, straight & clean, Flow Area= 1.23 sf #2 Primary 911.22'Asymmetrical Weir, C= 3.27 Offset (feet) 0.00 12.00 18.00 28.00 49.00 88.00 Height (feet) 1.35 0.02 0.00 0.15 0.70 1.35 Primary OutFlow Max=2.34 cfs @ 121.40 hrs HW=907.74' TW=0.00' (Dynamic Tailwater) 1=Culvert (Inlet Controls 2.34 cfs @ 2.98 fps) 2=Asymmetrical Weir ( Controls 0.00 cfs) MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 137HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Pond 7P: West - South Inflow Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)2 1 0 Inflow Area=12.319 ac Peak Elev=907.74' Storage=688 cf 2.34 cfs 2.34 cfs MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 138HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Stage-Area-Storage for Pond 7P: West - South Elevation (feet) Surface (sq-ft) Storage (cubic-feet) 906.98 10 0 907.08 243 13 907.18 477 49 907.28 710 108 907.38 943 191 907.48 1,177 297 907.58 1,410 426 907.68 1,643 579 907.78 1,877 755 907.88 2,110 954 907.98 2,343 1,177 908.08 2,925 1,437 908.18 3,593 1,763 908.28 4,262 2,155 908.38 4,931 2,615 908.48 5,599 3,141 908.58 6,268 3,735 908.68 6,936 4,395 908.78 7,605 5,122 908.88 8,274 5,916 908.98 8,942 6,777 909.08 9,788 7,712 909.18 10,679 8,735 909.28 11,569 9,847 909.38 12,460 11,049 909.48 13,350 12,339 909.58 14,241 13,719 909.68 15,131 15,188 909.78 16,022 16,745 909.88 16,912 18,392 909.98 17,803 20,128 910.08 18,540 21,946 910.18 19,239 23,835 910.28 19,938 25,794 910.38 20,637 27,823 910.48 21,336 29,922 910.58 22,035 32,090 910.68 22,734 34,329 910.78 23,433 36,637 910.88 24,132 39,015 910.98 24,831 41,463 911.08 25,444 43,978 911.18 26,034 46,552 911.28 26,625 49,185 911.38 27,216 51,877 911.48 27,806 54,628 911.58 28,397 57,438 911.68 28,988 60,307 911.78 29,578 63,236 911.88 30,169 66,223 911.98 30,760 69,270 912.08 30,878 69,886 Elevation (feet) Surface (sq-ft) Storage (cubic-feet) 912.18 30,878 69,886 912.28 30,878 69,886 912.38 30,878 69,886 912.48 30,878 69,886 MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 139HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Pond 8P: Wetland 4 Inflow Area = 29.862 ac, 0.00% Impervious, Inflow Depth = 6.96" for 10 day snowmelt event Inflow = 5.66 cfs @ 121.44 hrs, Volume= 17.322 af Outflow = 5.66 cfs @ 121.45 hrs, Volume= 17.321 af, Atten= 0%, Lag= 0.6 min Primary = 5.66 cfs @ 121.45 hrs, Volume= 17.321 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 884.37' @ 121.45 hrs Surf.Area= 1,691 sf Storage= 473 cf Plug-Flow detention time= 3.8 min calculated for 17.321 af (100% of inflow) Center-of-Mass det. time= 3.5 min ( 7,402.5 - 7,399.1 ) Volume Invert Avail.Storage Storage Description #1 884.00' 37,633 cf Custom Stage Data (Prismatic) Listed below (Recalc) Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 884.00 870 0 0 884.50 1,980 713 713 885.00 3,500 1,370 2,083 886.00 7,800 5,650 7,733 887.00 14,000 10,900 18,633 888.00 24,000 19,000 37,633 Device Routing Invert Outlet Devices #1 Primary 884.03'Asymmetrical Weir, C= 3.27 Offset (feet) 0.00 51.00 133.60 176.00 217.30 239.00 Elev. (feet) 889.78 886.05 884.03 885.84 889.00 889.78 Primary OutFlow Max=5.66 cfs @ 121.45 hrs HW=884.37' TW=0.00' (Dynamic Tailwater) 1=Asymmetrical Weir (Weir Controls 5.66 cfs @ 0.76 fps) MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 140HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Pond 8P: Wetland 4 Inflow Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)6 5 4 3 2 1 0 Inflow Area=29.862 ac Peak Elev=884.37' Storage=473 cf 5.66 cfs 5.66 cfs MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 141HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Stage-Area-Storage for Pond 8P: Wetland 4 Elevation (feet) Surface (sq-ft) Storage (cubic-feet) 884.00 870 0 884.10 1,092 98 884.20 1,314 218 884.30 1,536 361 884.40 1,758 526 884.50 1,980 713 884.60 2,284 926 884.70 2,588 1,169 884.80 2,892 1,443 884.90 3,196 1,748 885.00 3,500 2,083 885.10 3,930 2,454 885.20 4,360 2,869 885.30 4,790 3,326 885.40 5,220 3,826 885.50 5,650 4,370 885.60 6,080 4,957 885.70 6,510 5,586 885.80 6,940 6,258 885.90 7,370 6,974 886.00 7,800 7,733 886.10 8,420 8,544 886.20 9,040 9,417 886.30 9,660 10,351 886.40 10,280 11,348 886.50 10,900 12,408 886.60 11,520 13,529 886.70 12,140 14,712 886.80 12,760 15,956 886.90 13,380 17,263 887.00 14,000 18,633 887.10 15,000 20,083 887.20 16,000 21,633 887.30 17,000 23,282 887.40 18,000 25,032 887.50 19,000 26,883 887.60 20,000 28,833 887.70 21,000 30,883 887.80 22,000 33,032 887.90 23,000 35,282 888.00 24,000 37,633 888.10 24,000 37,633 888.20 24,000 37,633 888.30 24,000 37,633 888.40 24,000 37,633 888.50 24,000 37,633 888.60 24,000 37,633 888.70 24,000 37,633 888.80 24,000 37,633 888.90 24,000 37,633 889.00 24,000 37,633 889.10 24,000 37,633 Elevation (feet) Surface (sq-ft) Storage (cubic-feet) 889.20 24,000 37,633 889.30 24,000 37,633 889.40 24,000 37,633 889.50 24,000 37,633 889.60 24,000 37,633 889.70 24,000 37,633 MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 142HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Time span=0.00-360.00 hrs, dt=0.01 hrs, 36001 points Runoff by SCS TR-20 method, UH=SCS, Weighted-Q Reach routing by Dyn-Stor-Ind method - Pond routing by Dyn-Stor-Ind method Runoff Area=67,165 sf 0.00% Impervious Runoff Depth=0.95"Subcatchment 5aS: To Lyman - North Flow Length=115' Tc=7.9 min CN=61 Runoff=2.05 cfs 0.123 af Runoff Area=10,548 sf 0.00% Impervious Runoff Depth=2.10"Subcatchment 5oS: From Lyman Flow Length=57' Slope=0.3330 '/' Tc=5.0 min CN=78 Runoff=0.98 cfs 0.042 af Runoff Area=627,245 sf 0.00% Impervious Runoff Depth=2.08"Subcatchment 5S: Northwest Flow Length=1,040' Tc=15.9 min CN=WQ Runoff=35.78 cfs 2.498 af Runoff Area=115,865 sf 17.26% Impervious Runoff Depth=1.78"Subcatchment 6oS: Offsite West - North Flow Length=431' Tc=7.3 min UI Adjusted CN=WQ Runoff=6.99 cfs 0.395 af Runoff Area=225,525 sf 0.00% Impervious Runoff Depth=2.34"Subcatchment 6S: West - North Flow Length=531' Tc=10.6 min CN=WQ Runoff=17.38 cfs 1.009 af Runoff Area=58,180 sf 4.64% Impervious Runoff Depth=2.14"Subcatchment 7oS: Offsite West - South Flow Length=37' Slope=0.1620 '/' Tc=5.0 min CN=WQ Runoff=5.45 cfs 0.239 af Runoff Area=137,060 sf 0.00% Impervious Runoff Depth=0.87"Subcatchment 7S: West Woods Flow Length=268' Tc=11.1 min CN=WQ Runoff=3.01 cfs 0.227 af Runoff Area=1,300,770 sf 0.00% Impervious Runoff Depth=1.61"Subcatchment 8S: South - Central to Flow Length=1,321' Tc=24.5 min CN=WQ Runoff=43.91 cfs 4.014 af Runoff Area=140,359 sf 0.00% Impervious Runoff Depth=0.64"Subcatchment 9.1S: East Woods Flow Length=530' Tc=15.2 min CN=55 Runoff=1.73 cfs 0.172 af Runoff Area=88,007 sf 0.00% Impervious Runoff Depth=0.84"Subcatchment 9.2S: Northeast Woods Flow Length=623' Tc=19.5 min CN=WQ Runoff=1.43 cfs 0.141 af Runoff Area=258,057 sf 0.00% Impervious Runoff Depth=2.18"Subcatchment 9.3S: South Flow Length=550' Tc=10.3 min CN=WQ Runoff=19.06 cfs 1.076 af Runoff Area=323,827 sf 0.00% Impervious Runoff Depth=2.16"Subcatchment 9.4S: Southeast Flow Length=912' Tc=16.5 min CN=WQ Runoff=18.93 cfs 1.338 af Runoff Area=165,080 sf 0.00% Impervious Runoff Depth=0.64"Subcatchment 10S: Southwest Flow Length=270' Tc=18.3 min CN=55 Runoff=1.88 cfs 0.203 af Runoff Area=1,162 sf 0.00% Impervious Runoff Depth=0.79"Subcatchment 29oS: North Offsite Tc=10.0 min CN=58 Runoff=0.02 cfs 0.002 af Runoff Area=1,628 sf 0.00% Impervious Runoff Depth=0.79"Subcatchment 36oS: Southwest Offsite Tc=10.0 min CN=58 Runoff=0.03 cfs 0.002 af Avg. Flow Depth=0.87' Max Vel=1.33 fps Inflow=37.63 cfs 2.665 afReach 3R: Lower Wetland 6 n=0.050 L=187.0' S=0.0053 '/' Capacity=3,072.14 cfs Outflow=36.91 cfs 2.665 af MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 143HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Inflow=10.72 cfs 2.075 afReach 4R: Southwest Drainage Outflow=10.72 cfs 2.075 af Inflow=36.16 cfs 2.540 afReach 5R: Upper Wetland 6 Outflow=36.16 cfs 2.540 af Inflow=119.11 cfs 11.481 afReach 6R: Bluff Creek Drainage Outflow=119.11 cfs 11.481 af Inflow=72.88 cfs 6.741 afReach 8R: South Drainage Outflow=72.88 cfs 6.741 af Inflow=45.29 cfs 4.154 afReach 9R: Wetland 4 Channel Outflow=45.29 cfs 4.154 af Peak Elev=921.02' Storage=6,915 cf Inflow=23.71 cfs 1.404 afPond 6P: Wetland 3 Outflow=18.58 cfs 1.404 af Peak Elev=909.98' Storage=20,197 cf Inflow=23.76 cfs 1.870 afPond 7P: West - South Outflow=9.11 cfs 1.870 af Peak Elev=884.80' Storage=1,446 cf Inflow=43.91 cfs 4.014 afPond 8P: Wetland 4 Outflow=43.89 cfs 4.013 af Total Runoff Area = 80.819 ac Runoff Volume = 11.481 af Average Runoff Depth = 1.70" 99.36% Pervious = 80.298 ac 0.64% Impervious = 0.521 ac MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 144HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 5aS: To Lyman - North Runoff = 2.05 cfs @ 12.12 hrs, Volume= 0.123 af, Depth= 0.95" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Area (sf) CN Description 67,165 61 >75% Grass cover, Good, HSG B 67,165 61 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 7.7 75 0.0600 0.16 Sheet Flow, Grass: Dense n= 0.240 P2= 2.87" 0.2 40 0.1500 2.71 Shallow Concentrated Flow, Short Grass Pasture Kv= 7.0 fps 7.9 115 Total Subcatchment 5aS: To Lyman - North Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)2 1 0 MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Runoff Area=67,165 sf Runoff Volume=0.123 af Runoff Depth=0.95" Flow Length=115' Tc=7.9 min CN=61 2.05 cfs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 145HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 5oS: From Lyman Runoff = 0.98 cfs @ 12.08 hrs, Volume= 0.042 af, Depth= 2.10" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Area (sf) CN Description 10,548 78 Meadow, non-grazed, HSG D 10,548 78 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 2.1 57 0.3330 0.44 Sheet Flow, Grass: Short n= 0.150 P2= 2.87" 2.9 Direct Entry, Make up to 5 minutes 5.0 57 Total Subcatchment 5oS: From Lyman Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)1 0 MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Runoff Area=10,548 sf Runoff Volume=0.042 af Runoff Depth=2.10" Flow Length=57' Slope=0.3330 '/' Tc=5.0 min CN=78 0.98 cfs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 146HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 5S: Northwest Runoff = 35.78 cfs @ 12.21 hrs, Volume= 2.498 af, Depth= 2.08" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Area (sf) CN Description 7,250 55 Woods, Good, HSG B 217,355 79 Pasture/grassland/range, Poor, HSG B 366,575 79 Pasture/grassland/range, Poor, HSG B 7,095 61 >75% Grass cover, Good, HSG B 28,970 55 Woods, Good, HSG B 627,245 Weighted Average 627,245 77 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 7.8 100 0.0300 0.21 Sheet Flow, Range n= 0.130 P2= 2.87" 4.5 419 0.0500 1.57 Shallow Concentrated Flow, Short Grass Pasture Kv= 7.0 fps 0.9 131 0.1220 2.44 Shallow Concentrated Flow, Short Grass Pasture Kv= 7.0 fps 2.7 390 0.0260 2.42 Shallow Concentrated Flow, Wetland Grassed Waterway Kv= 15.0 fps 15.9 1,040 Total MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 147HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Subcatchment 5S: Northwest Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)40 38 36 34 32 30 28 26 24 22 20 18 16 14 12 10 8 6 4 2 0 MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Runoff Area=627,245 sf Runoff Volume=2.498 af Runoff Depth=2.08" Flow Length=1,040' Tc=15.9 min CN=WQ 35.78 cfs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 148HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 6oS: Offsite West - North Runoff = 6.99 cfs @ 12.11 hrs, Volume= 0.395 af, Depth= 1.78" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Area (sf) CN Adj Description 20,000 98 98 Unconnected roofs, HSG B 71,000 61 61 >75% Grass cover, Good, HSG B * 12,720 96 96 Wetland, Good, HSG D 12,145 58 58 Meadow, non-grazed, HSG B 115,865 Weighted Average 95,865 65 65 82.74% Pervious Area 20,000 98 98 17.26% Impervious Area 20,000 100.00% Unconnected Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 5.0 25 0.0200 0.08 Sheet Flow, Grass: Dense n= 0.240 P2= 2.87" 2.3 406 0.0390 2.96 Shallow Concentrated Flow, Grassed Waterway Kv= 15.0 fps 7.3 431 Total Subcatchment 6oS: Offsite West - North Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)7 6 5 4 3 2 1 0 MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Runoff Area=115,865 sf Runoff Volume=0.395 af Runoff Depth=1.78" Flow Length=431' Tc=7.3 min UI Adjusted CN=WQ 6.99 cfs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 149HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 6S: West - North Runoff = 17.38 cfs @ 12.14 hrs, Volume= 1.009 af, Depth= 2.34" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Area (sf) CN Description 2,000 77 Woods, Good, HSG D 4,000 55 Woods, Good, HSG B * 25,440 96 Wetland, Good, HSG D 194,085 79 Pasture/grassland/range, Poor, HSG B 225,525 Weighted Average 225,525 80 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 6.4 100 0.0500 0.26 Sheet Flow, Range n= 0.130 P2= 2.87" 3.5 348 0.0550 1.64 Shallow Concentrated Flow, Short Grass Pasture Kv= 7.0 fps 0.7 83 0.0170 1.96 Shallow Concentrated Flow, Wetland Grassed Waterway Kv= 15.0 fps 10.6 531 Total Subcatchment 6S: West - North Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Runoff Area=225,525 sf Runoff Volume=1.009 af Runoff Depth=2.34" Flow Length=531' Tc=10.6 min CN=WQ 17.38 cfs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 150HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 7oS: Offsite West - South Runoff = 5.45 cfs @ 12.08 hrs, Volume= 0.239 af, Depth= 2.14" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Area (sf) CN Description 45,880 78 Meadow, non-grazed, HSG D 2,700 98 Unconnected roofs, HSG C 9,600 74 >75% Grass cover, Good, HSG C 58,180 Weighted Average 55,480 77 95.36% Pervious Area 2,700 98 4.64% Impervious Area 2,700 100.00% Unconnected Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 2.0 37 0.1620 0.30 Sheet Flow, Grass: Short n= 0.150 P2= 2.87" 3.0 Direct Entry, Make up to 5.0 minutes 5.0 37 Total Subcatchment 7oS: Offsite West - South Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)6 5 4 3 2 1 0 MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Runoff Area=58,180 sf Runoff Volume=0.239 af Runoff Depth=2.14" Flow Length=37' Slope=0.1620 '/' Tc=5.0 min CN=WQ 5.45 cfs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 151HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 7S: West Woods Runoff = 3.01 cfs @ 12.17 hrs, Volume= 0.227 af, Depth= 0.87" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Area (sf) CN Description 117,170 55 Woods, Good, HSG B 19,890 79 Pasture/grassland/range, Poor, HSG B 137,060 Weighted Average 137,060 58 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 8.4 50 0.0600 0.10 Sheet Flow, Woods: Light underbrush n= 0.400 P2= 2.87" 2.7 218 0.0710 1.33 Shallow Concentrated Flow, Woodland Kv= 5.0 fps 11.1 268 Total Subcatchment 7S: West Woods Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)3 2 1 0 MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Runoff Area=137,060 sf Runoff Volume=0.227 af Runoff Depth=0.87" Flow Length=268' Tc=11.1 min CN=WQ 3.01 cfs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 152HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 8S: South - Central to Wetland 4 Runoff = 43.91 cfs @ 12.34 hrs, Volume= 4.014 af, Depth= 1.61" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Area (sf) CN Description * 15,505 79 Wetland 5, Pasture/grassland/range, Poor, HSG B 21,030 55 Woods, Good, HSG B 185,110 79 Pasture/grassland/range, Poor, HSG B 460,890 55 Woods, Good, HSG B 618,235 79 Pasture/grassland/range, Poor, HSG B 1,300,770 Weighted Average 1,300,770 70 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 7.8 100 0.0300 0.21 Sheet Flow, Range n= 0.130 P2= 2.87" 15.2 1,028 0.0260 1.13 Shallow Concentrated Flow, Short Grass Pasture Kv= 7.0 fps 1.5 193 0.0200 2.12 Shallow Concentrated Flow, Wetland Grassed Waterway Kv= 15.0 fps 24.5 1,321 Total Subcatchment 8S: South - Central to Wetland 4 Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)48 46 44 42 40 38 36 34 32 30 28 26 24 22 20 18 16 14 12 10 8 6 4 2 0 MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Runoff Area=1,300,770 sf Runoff Volume=4.014 af Runoff Depth=1.61" Flow Length=1,321' Tc=24.5 min CN=WQ 43.91 cfs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 153HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 9.1S: East Woods Runoff = 1.73 cfs @ 12.27 hrs, Volume= 0.172 af, Depth= 0.64" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Area (sf) CN Description 140,359 55 Woods, Good, HSG B 140,359 55 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 11.1 75 0.0670 0.11 Sheet Flow, Woods: Light underbrush n= 0.400 P2= 2.87" 4.1 455 0.1380 1.86 Shallow Concentrated Flow, Woodland Kv= 5.0 fps 15.2 530 Total Subcatchment 9.1S: East Woods Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)1 0 MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Runoff Area=140,359 sf Runoff Volume=0.172 af Runoff Depth=0.64" Flow Length=530' Tc=15.2 min CN=55 1.73 cfs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 154HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 9.2S: Northeast Woods Runoff = 1.43 cfs @ 12.32 hrs, Volume= 0.141 af, Depth= 0.84" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Area (sf) CN Description 76,845 55 Woods, Good, HSG B 11,162 79 Pasture/grassland/range, Poor, HSG B 88,007 Weighted Average 88,007 58 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 14.2 100 0.0650 0.12 Sheet Flow, Woods: Light underbrush n= 0.400 P2= 2.87" 5.3 523 0.1080 1.64 Shallow Concentrated Flow, Woodland Kv= 5.0 fps 19.5 623 Total Subcatchment 9.2S: Northeast Woods Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)1 0 MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Runoff Area=88,007 sf Runoff Volume=0.141 af Runoff Depth=0.84" Flow Length=623' Tc=19.5 min CN=WQ 1.43 cfs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 155HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 9.3S: South Runoff = 19.06 cfs @ 12.14 hrs, Volume= 1.076 af, Depth= 2.18" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Area (sf) CN Description 3,690 55 Woods, Good, HSG B 246,824 79 Pasture/grassland/range, Poor, HSG B 7,543 86 Pasture/grassland/range, Poor, HSG C 258,057 Weighted Average 258,057 79 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 6.5 90 0.0390 0.23 Sheet Flow, Range n= 0.130 P2= 2.87" 3.8 460 0.0850 2.04 Shallow Concentrated Flow, Short Grass Pasture Kv= 7.0 fps 10.3 550 Total Subcatchment 9.3S: South Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Runoff Area=258,057 sf Runoff Volume=1.076 af Runoff Depth=2.18" Flow Length=550' Tc=10.3 min CN=WQ 19.06 cfs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 156HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 9.4S: Southeast Runoff = 18.93 cfs @ 12.23 hrs, Volume= 1.338 af, Depth= 2.16" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Area (sf) CN Description 4,560 55 Woods, Good, HSG B 2,090 58 Meadow, non-grazed, HSG B 313,772 79 Pasture/grassland/range, Poor, HSG B 3,405 86 Pasture/grassland/range, Poor, HSG C 323,827 Weighted Average 323,827 79 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 6.0 55 0.0180 0.15 Sheet Flow, Range n= 0.130 P2= 2.87" 10.5 857 0.0380 1.36 Shallow Concentrated Flow, Short Grass Pasture Kv= 7.0 fps 16.5 912 Total Subcatchment 9.4S: Southeast Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Runoff Area=323,827 sf Runoff Volume=1.338 af Runoff Depth=2.16" Flow Length=912' Tc=16.5 min CN=WQ 18.93 cfs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 157HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 10S: Southwest Runoff = 1.88 cfs @ 12.33 hrs, Volume= 0.203 af, Depth= 0.64" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Area (sf) CN Description 165,080 55 Woods, Good, HSG B 165,080 55 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 16.0 75 0.0270 0.08 Sheet Flow, Woods: Light underbrush n= 0.400 P2= 2.87" 2.3 195 0.0820 1.43 Shallow Concentrated Flow, Woodland Kv= 5.0 fps 18.3 270 Total Subcatchment 10S: Southwest Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)2 1 0 MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Runoff Area=165,080 sf Runoff Volume=0.203 af Runoff Depth=0.64" Flow Length=270' Tc=18.3 min CN=55 1.88 cfs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 158HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 29oS: North Offsite Runoff = 0.02 cfs @ 12.16 hrs, Volume= 0.002 af, Depth= 0.79" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Area (sf) CN Description 1,162 58 Meadow, non-grazed, HSG B 1,162 58 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 10.0 Direct Entry, Subcatchment 29oS: North Offsite Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.026 0.024 0.022 0.02 0.018 0.016 0.014 0.012 0.01 0.008 0.006 0.004 0.002 0 MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Runoff Area=1,162 sf Runoff Volume=0.002 af Runoff Depth=0.79" Tc=10.0 min CN=58 0.02 cfs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 159HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 36oS: Southwest Offsite Runoff = 0.03 cfs @ 12.16 hrs, Volume= 0.002 af, Depth= 0.79" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Area (sf) CN Description 1,628 58 Meadow, non-grazed, HSG B 1,628 58 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 10.0 Direct Entry, Subcatchment 36oS: Southwest Offsite Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.036 0.034 0.032 0.03 0.028 0.026 0.024 0.022 0.02 0.018 0.016 0.014 0.012 0.01 0.008 0.006 0.004 0.002 0 MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Runoff Area=1,628 sf Runoff Volume=0.002 af Runoff Depth=0.79" Tc=10.0 min CN=58 0.03 cfs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 160HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Reach 3R: Lower Wetland 6 Inflow Area = 16.210 ac, 0.00% Impervious, Inflow Depth = 1.97" for 10y 24hr event Inflow = 37.63 cfs @ 12.21 hrs, Volume= 2.665 af Outflow = 36.91 cfs @ 12.24 hrs, Volume= 2.665 af, Atten= 2%, Lag= 1.8 min Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Max. Velocity= 1.33 fps, Min. Travel Time= 2.3 min Avg. Velocity = 0.47 fps, Avg. Travel Time= 6.6 min Peak Storage= 5,198 cf @ 12.24 hrs Average Depth at Peak Storage= 0.87' Bank-Full Depth= 5.99' Flow Area= 570.1 sf, Capacity= 3,072.14 cfs Custom cross-section, Length= 187.0' Slope= 0.0053 '/' (102 Elevation Intervals) Constant n= 0.050 Scattered brush, heavy weeds Inlet Invert= 885.00', Outlet Invert= 884.00' ‡ Offset Elevation Chan.Depth (feet) (feet) (feet) 0.00 890.40 0.00 43.10 886.55 3.85 85.60 884.41 5.99 126.20 885.14 5.26 145.10 890.40 0.00 Depth End Area Perim. Storage Discharge (feet) (sq-ft) (feet) (cubic-feet) (cfs) 0.00 0.0 0.0 0 0.00 0.73 20.1 55.1 3,761 22.32 2.14 121.1 88.4 22,648 324.64 5.99 570.1 146.1 106,618 3,072.14 MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 161HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Reach 3R: Lower Wetland 6 Inflow Outflow Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)42 40 38 36 34 32 30 28 26 24 22 20 18 16 14 12 10 8 6 4 2 0 Inflow Area=16.210 ac Avg. Flow Depth=0.87' Max Vel=1.33 fps n=0.050 L=187.0' S=0.0053 '/' Capacity=3,072.14 cfs 37.63 cfs 36.91 cfs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 162HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Stage-Area-Storage for Reach 3R: Lower Wetland 6 Elevation (feet) End-Area (sq-ft) Storage (cubic-feet) 885.00 0.0 0 885.10 0.4 76 885.20 1.5 288 885.30 3.4 635 885.40 6.1 1,135 885.50 9.5 1,770 885.60 13.6 2,541 885.70 18.5 3,463 885.80 24.0 4,494 885.90 29.8 5,576 886.00 35.9 6,704 886.10 42.1 7,875 886.20 48.6 9,088 886.30 55.3 10,348 886.40 62.3 11,650 886.50 69.5 12,995 886.60 76.9 14,386 886.70 84.6 15,820 886.80 92.5 17,296 886.90 100.6 18,819 887.00 109.0 20,385 887.10 117.6 21,992 887.20 126.4 23,643 887.30 135.4 25,322 887.40 144.5 27,028 887.50 153.8 28,763 887.60 163.2 30,526 887.70 172.8 32,315 887.80 182.5 34,133 887.90 192.4 35,978 888.00 202.4 37,850 888.10 212.6 39,751 888.20 222.9 41,679 888.30 233.3 43,634 888.40 243.9 45,618 888.50 254.7 47,629 888.60 265.6 49,667 888.70 276.6 51,734 888.80 287.8 53,828 888.90 299.2 55,949 889.00 310.7 58,098 889.10 322.3 60,276 889.20 334.1 62,479 889.30 346.1 64,712 889.40 358.1 66,972 889.50 370.4 69,259 889.60 382.8 71,574 889.70 395.3 73,918 889.80 408.0 76,287 889.90 420.8 78,686 890.00 433.8 81,112 890.10 446.9 83,565 Elevation (feet) End-Area (sq-ft) Storage (cubic-feet) 890.20 460.1 86,046 890.30 473.6 88,555 890.40 487.1 91,091 890.50 500.8 93,655 890.60 514.7 96,247 890.70 528.7 98,866 890.80 542.9 101,513 890.90 557.2 104,188 891.00 571.6 106,888 MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 163HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Reach 4R: Southwest Drainage [40] Hint: Not Described (Outflow=Inflow) Inflow Area = 16.146 ac, 3.23% Impervious, Inflow Depth = 1.54" for 10y 24hr event Inflow = 10.72 cfs @ 12.40 hrs, Volume= 2.075 af Outflow = 10.72 cfs @ 12.40 hrs, Volume= 2.075 af, Atten= 0%, Lag= 0.0 min Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Reach 4R: Southwest Drainage Inflow Outflow Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)12 11 10 9 8 7 6 5 4 3 2 1 0 Inflow Area=16.146 ac 10.72 cfs 10.72 cfs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 164HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Reach 5R: Upper Wetland 6 [40] Hint: Not Described (Outflow=Inflow) Inflow Area = 14.642 ac, 0.00% Impervious, Inflow Depth = 2.08" for 10y 24hr event Inflow = 36.16 cfs @ 12.21 hrs, Volume= 2.540 af Outflow = 36.16 cfs @ 12.21 hrs, Volume= 2.540 af, Atten= 0%, Lag= 0.0 min Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Reach 5R: Upper Wetland 6 Inflow Outflow Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)40 38 36 34 32 30 28 26 24 22 20 18 16 14 12 10 8 6 4 2 0 Inflow Area=14.642 ac 36.16 cfs 36.16 cfs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 165HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Reach 6R: Bluff Creek Drainage [40] Hint: Not Described (Outflow=Inflow) Inflow Area = 80.819 ac, 0.64% Impervious, Inflow Depth = 1.70" for 10y 24hr event Inflow = 119.11 cfs @ 12.27 hrs, Volume= 11.481 af Outflow = 119.11 cfs @ 12.27 hrs, Volume= 11.481 af, Atten= 0%, Lag= 0.0 min Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Reach 6R: Bluff Creek Drainage Inflow Outflow Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)130 120 110 100 90 80 70 60 50 40 30 20 10 0 Inflow Area=80.819 ac 119.11 cfs 119.11 cfs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 166HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Reach 8R: South Drainage [40] Hint: Not Described (Outflow=Inflow) Inflow Area = 48.462 ac, 0.00% Impervious, Inflow Depth = 1.67" for 10y 24hr event Inflow = 72.88 cfs @ 12.28 hrs, Volume= 6.741 af Outflow = 72.88 cfs @ 12.28 hrs, Volume= 6.741 af, Atten= 0%, Lag= 0.0 min Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Reach 8R: South Drainage Inflow Outflow Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)80 75 70 65 60 55 50 45 40 35 30 25 20 15 10 5 0 Inflow Area=48.462 ac 72.88 cfs 72.88 cfs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 167HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Reach 9R: Wetland 4 Channel [40] Hint: Not Described (Outflow=Inflow) Inflow Area = 31.882 ac, 0.00% Impervious, Inflow Depth = 1.56" for 10y 24hr event Inflow = 45.29 cfs @ 12.35 hrs, Volume= 4.154 af Outflow = 45.29 cfs @ 12.35 hrs, Volume= 4.154 af, Atten= 0%, Lag= 0.0 min Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Reach 9R: Wetland 4 Channel Inflow Outflow Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)50 48 46 44 42 40 38 36 34 32 30 28 26 24 22 20 18 16 14 12 10 8 6 4 2 0 Inflow Area=31.882 ac 45.29 cfs 45.29 cfs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 168HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Pond 6P: Wetland 3 Inflow Area = 7.837 ac, 5.86% Impervious, Inflow Depth = 2.15" for 10y 24hr event Inflow = 23.71 cfs @ 12.13 hrs, Volume= 1.404 af Outflow = 18.58 cfs @ 12.21 hrs, Volume= 1.404 af, Atten= 22%, Lag= 4.6 min Primary = 18.58 cfs @ 12.21 hrs, Volume= 1.404 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 921.02' @ 12.21 hrs Surf.Area= 30,747 sf Storage= 6,915 cf Plug-Flow detention time= 7.8 min calculated for 1.404 af (100% of inflow) Center-of-Mass det. time= 8.5 min ( 801.5 - 793.0 ) Volume Invert Avail.Storage Storage Description #1 920.58' 140,121 cf Custom Stage Data (Prismatic) Listed below (Recalc) Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 920.58 100 0 0 921.00 30,000 6,321 6,321 922.00 68,200 49,100 55,421 923.00 101,200 84,700 140,121 Device Routing Invert Outlet Devices #1 Primary 920.58'Asymmetrical Weir, C= 3.27 Offset (feet) 0.00 10.50 22.75 36.75 74.10 Height (feet) 2.09 0.33 0.10 0.00 2.09 Primary OutFlow Max=18.58 cfs @ 12.21 hrs HW=921.02' TW=909.37' (Dynamic Tailwater) 1=Asymmetrical Weir (Weir Controls 18.58 cfs @ 1.34 fps) MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 169HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Pond 6P: Wetland 3 Inflow Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)26 24 22 20 18 16 14 12 10 8 6 4 2 0 Inflow Area=7.837 ac Peak Elev=921.02' Storage=6,915 cf 23.71 cfs 18.58 cfs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 170HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Stage-Area-Storage for Pond 6P: Wetland 3 Elevation (feet) Surface (sq-ft) Storage (cubic-feet) 920.58 100 0 920.63 3,660 94 920.68 7,219 366 920.73 10,779 816 920.78 14,338 1,444 920.83 17,898 2,250 920.88 21,457 3,234 920.93 25,017 4,395 920.98 28,576 5,735 921.03 31,146 7,238 921.08 33,056 8,843 921.13 34,966 10,544 921.18 36,876 12,340 921.23 38,786 14,231 921.28 40,696 16,218 921.33 42,606 18,301 921.38 44,516 20,479 921.43 46,426 22,753 921.48 48,336 25,122 921.53 50,246 27,586 921.58 52,156 30,146 921.63 54,066 32,802 921.68 55,976 35,553 921.73 57,886 38,399 921.78 59,796 41,341 921.83 61,706 44,379 921.88 63,616 47,512 921.93 65,526 50,741 921.98 67,436 54,065 922.03 69,190 57,482 922.08 70,840 60,983 922.13 72,490 64,566 922.18 74,140 68,232 922.23 75,790 71,980 922.28 77,440 75,811 922.33 79,090 79,724 922.38 80,740 83,720 922.43 82,390 87,798 922.48 84,040 91,959 922.53 85,690 96,202 922.58 87,340 100,528 922.63 88,990 104,936 922.68 90,640 109,427 922.73 92,290 114,000 922.78 93,940 118,656 922.83 95,590 123,394 922.88 97,240 128,215 922.93 98,890 133,118 922.98 100,540 138,104 MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 171HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Pond 7P: West - South Inflow Area = 12.319 ac, 4.23% Impervious, Inflow Depth = 1.82" for 10y 24hr event Inflow = 23.76 cfs @ 12.19 hrs, Volume= 1.870 af Outflow = 9.11 cfs @ 12.58 hrs, Volume= 1.870 af, Atten= 62%, Lag= 23.2 min Primary = 9.11 cfs @ 12.58 hrs, Volume= 1.870 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 909.98' @ 12.58 hrs Surf.Area= 17,838 sf Storage= 20,197 cf Plug-Flow detention time= (not calculated: outflow precedes inflow) Center-of-Mass det. time= 18.4 min ( 823.8 - 805.4 ) Volume Invert Avail.Storage Storage Description #1 906.98' 69,886 cf Custom Stage Data (Prismatic) Listed below (Recalc) Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 906.98 10 0 0 908.00 2,390 1,224 1,224 909.00 9,076 5,733 6,957 910.00 17,981 13,529 20,485 911.00 24,971 21,476 41,961 912.00 30,878 27,925 69,886 Device Routing Invert Outlet Devices #1 Primary 906.98'15.0" Round Culvert L= 48.8' RCP, end-section conforming to fill, Ke= 0.500 Inlet / Outlet Invert= 906.98' / 906.00' S= 0.0201 '/' Cc= 0.900 n= 0.013 Concrete pipe, straight & clean, Flow Area= 1.23 sf #2 Primary 911.22'Asymmetrical Weir, C= 3.27 Offset (feet) 0.00 12.00 18.00 28.00 49.00 88.00 Height (feet) 1.35 0.02 0.00 0.15 0.70 1.35 Primary OutFlow Max=9.11 cfs @ 12.58 hrs HW=909.98' TW=0.00' (Dynamic Tailwater) 1=Culvert (Inlet Controls 9.11 cfs @ 7.43 fps) 2=Asymmetrical Weir ( Controls 0.00 cfs) MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 172HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Pond 7P: West - South Inflow Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)26 24 22 20 18 16 14 12 10 8 6 4 2 0 Inflow Area=12.319 ac Peak Elev=909.98' Storage=20,197 cf 23.76 cfs 9.11 cfs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 173HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Stage-Area-Storage for Pond 7P: West - South Elevation (feet) Surface (sq-ft) Storage (cubic-feet) 906.98 10 0 907.08 243 13 907.18 477 49 907.28 710 108 907.38 943 191 907.48 1,177 297 907.58 1,410 426 907.68 1,643 579 907.78 1,877 755 907.88 2,110 954 907.98 2,343 1,177 908.08 2,925 1,437 908.18 3,593 1,763 908.28 4,262 2,155 908.38 4,931 2,615 908.48 5,599 3,141 908.58 6,268 3,735 908.68 6,936 4,395 908.78 7,605 5,122 908.88 8,274 5,916 908.98 8,942 6,777 909.08 9,788 7,712 909.18 10,679 8,735 909.28 11,569 9,847 909.38 12,460 11,049 909.48 13,350 12,339 909.58 14,241 13,719 909.68 15,131 15,188 909.78 16,022 16,745 909.88 16,912 18,392 909.98 17,803 20,128 910.08 18,540 21,946 910.18 19,239 23,835 910.28 19,938 25,794 910.38 20,637 27,823 910.48 21,336 29,922 910.58 22,035 32,090 910.68 22,734 34,329 910.78 23,433 36,637 910.88 24,132 39,015 910.98 24,831 41,463 911.08 25,444 43,978 911.18 26,034 46,552 911.28 26,625 49,185 911.38 27,216 51,877 911.48 27,806 54,628 911.58 28,397 57,438 911.68 28,988 60,307 911.78 29,578 63,236 911.88 30,169 66,223 911.98 30,760 69,270 912.08 30,878 69,886 Elevation (feet) Surface (sq-ft) Storage (cubic-feet) 912.18 30,878 69,886 912.28 30,878 69,886 912.38 30,878 69,886 912.48 30,878 69,886 MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 174HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Pond 8P: Wetland 4 Inflow Area = 29.862 ac, 0.00% Impervious, Inflow Depth = 1.61" for 10y 24hr event Inflow = 43.91 cfs @ 12.34 hrs, Volume= 4.014 af Outflow = 43.89 cfs @ 12.35 hrs, Volume= 4.013 af, Atten= 0%, Lag= 0.5 min Primary = 43.89 cfs @ 12.35 hrs, Volume= 4.013 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 884.80' @ 12.35 hrs Surf.Area= 2,895 sf Storage= 1,446 cf Plug-Flow detention time= 1.8 min calculated for 4.013 af (100% of inflow) Center-of-Mass det. time= 1.4 min ( 826.2 - 824.8 ) Volume Invert Avail.Storage Storage Description #1 884.00' 37,633 cf Custom Stage Data (Prismatic) Listed below (Recalc) Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 884.00 870 0 0 884.50 1,980 713 713 885.00 3,500 1,370 2,083 886.00 7,800 5,650 7,733 887.00 14,000 10,900 18,633 888.00 24,000 19,000 37,633 Device Routing Invert Outlet Devices #1 Primary 884.03'Asymmetrical Weir, C= 3.27 Offset (feet) 0.00 51.00 133.60 176.00 217.30 239.00 Elev. (feet) 889.78 886.05 884.03 885.84 889.00 889.78 Primary OutFlow Max=43.89 cfs @ 12.35 hrs HW=884.80' TW=0.00' (Dynamic Tailwater) 1=Asymmetrical Weir (Weir Controls 43.89 cfs @ 1.15 fps) MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 175HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Pond 8P: Wetland 4 Inflow Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)48 46 44 42 40 38 36 34 32 30 28 26 24 22 20 18 16 14 12 10 8 6 4 2 0 Inflow Area=29.862 ac Peak Elev=884.80' Storage=1,446 cf 43.91 cfs 43.89 cfs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 176HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Stage-Area-Storage for Pond 8P: Wetland 4 Elevation (feet) Surface (sq-ft) Storage (cubic-feet) 884.00 870 0 884.10 1,092 98 884.20 1,314 218 884.30 1,536 361 884.40 1,758 526 884.50 1,980 713 884.60 2,284 926 884.70 2,588 1,169 884.80 2,892 1,443 884.90 3,196 1,748 885.00 3,500 2,083 885.10 3,930 2,454 885.20 4,360 2,869 885.30 4,790 3,326 885.40 5,220 3,826 885.50 5,650 4,370 885.60 6,080 4,957 885.70 6,510 5,586 885.80 6,940 6,258 885.90 7,370 6,974 886.00 7,800 7,733 886.10 8,420 8,544 886.20 9,040 9,417 886.30 9,660 10,351 886.40 10,280 11,348 886.50 10,900 12,408 886.60 11,520 13,529 886.70 12,140 14,712 886.80 12,760 15,956 886.90 13,380 17,263 887.00 14,000 18,633 887.10 15,000 20,083 887.20 16,000 21,633 887.30 17,000 23,282 887.40 18,000 25,032 887.50 19,000 26,883 887.60 20,000 28,833 887.70 21,000 30,883 887.80 22,000 33,032 887.90 23,000 35,282 888.00 24,000 37,633 888.10 24,000 37,633 888.20 24,000 37,633 888.30 24,000 37,633 888.40 24,000 37,633 888.50 24,000 37,633 888.60 24,000 37,633 888.70 24,000 37,633 888.80 24,000 37,633 888.90 24,000 37,633 889.00 24,000 37,633 889.10 24,000 37,633 Elevation (feet) Surface (sq-ft) Storage (cubic-feet) 889.20 24,000 37,633 889.30 24,000 37,633 889.40 24,000 37,633 889.50 24,000 37,633 889.60 24,000 37,633 889.70 24,000 37,633 MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 177HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Time span=0.00-360.00 hrs, dt=0.01 hrs, 36001 points Runoff by SCS TR-20 method, UH=SCS, Weighted-Q Reach routing by Dyn-Stor-Ind method - Pond routing by Dyn-Stor-Ind method Runoff Area=67,165 sf 0.00% Impervious Runoff Depth=3.00"Subcatchment 5aS: To Lyman - North Flow Length=115' Tc=7.9 min CN=61 Runoff=6.98 cfs 0.386 af Runoff Area=10,548 sf 0.00% Impervious Runoff Depth=4.85"Subcatchment 5oS: From Lyman Flow Length=57' Slope=0.3330 '/' Tc=5.0 min CN=78 Runoff=2.08 cfs 0.098 af Runoff Area=627,245 sf 0.00% Impervious Runoff Depth=4.79"Subcatchment 5S: Northwest Flow Length=1,040' Tc=15.9 min CN=WQ Runoff=77.23 cfs 5.748 af Runoff Area=115,865 sf 17.26% Impervious Runoff Depth=4.12"Subcatchment 6oS: Offsite West - North Flow Length=431' Tc=7.3 min UI Adjusted CN=WQ Runoff=16.09 cfs 0.913 af Runoff Area=225,525 sf 0.00% Impervious Runoff Depth=5.14"Subcatchment 6S: West - North Flow Length=531' Tc=10.6 min CN=WQ Runoff=35.40 cfs 2.216 af Runoff Area=58,180 sf 4.64% Impervious Runoff Depth=4.88"Subcatchment 7oS: Offsite West - South Flow Length=37' Slope=0.1620 '/' Tc=5.0 min CN=WQ Runoff=11.48 cfs 0.543 af Runoff Area=137,060 sf 0.00% Impervious Runoff Depth=2.76"Subcatchment 7S: West Woods Flow Length=268' Tc=11.1 min CN=WQ Runoff=11.00 cfs 0.724 af Runoff Area=1,300,770 sf 0.00% Impervious Runoff Depth=4.01"Subcatchment 8S: South - Central to Flow Length=1,321' Tc=24.5 min CN=WQ Runoff=106.67 cfs 9.974 af Runoff Area=140,359 sf 0.00% Impervious Runoff Depth=2.39"Subcatchment 9.1S: East Woods Flow Length=530' Tc=15.2 min CN=55 Runoff=8.28 cfs 0.641 af Runoff Area=88,007 sf 0.00% Impervious Runoff Depth=2.71"Subcatchment 9.2S: Northeast Woods Flow Length=623' Tc=19.5 min CN=WQ Runoff=5.30 cfs 0.457 af Runoff Area=258,057 sf 0.00% Impervious Runoff Depth=4.95"Subcatchment 9.3S: South Flow Length=550' Tc=10.3 min CN=WQ Runoff=40.09 cfs 2.443 af Runoff Area=323,827 sf 0.00% Impervious Runoff Depth=4.92"Subcatchment 9.4S: Southeast Flow Length=912' Tc=16.5 min CN=WQ Runoff=40.15 cfs 3.047 af Runoff Area=165,080 sf 0.00% Impervious Runoff Depth=2.39"Subcatchment 10S: Southwest Flow Length=270' Tc=18.3 min CN=55 Runoff=8.90 cfs 0.754 af Runoff Area=1,162 sf 0.00% Impervious Runoff Depth=2.69"Subcatchment 29oS: North Offsite Tc=10.0 min CN=58 Runoff=0.10 cfs 0.006 af Runoff Area=1,628 sf 0.00% Impervious Runoff Depth=2.69"Subcatchment 36oS: Southwest Offsite Tc=10.0 min CN=58 Runoff=0.14 cfs 0.008 af Avg. Flow Depth=1.17' Max Vel=1.74 fps Inflow=82.54 cfs 6.238 afReach 3R: Lower Wetland 6 n=0.050 L=187.0' S=0.0053 '/' Capacity=3,072.14 cfs Outflow=81.59 cfs 6.238 af MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 178HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Inflow=31.77 cfs 5.160 afReach 4R: Southwest Drainage Outflow=31.77 cfs 5.160 af Inflow=78.01 cfs 5.846 afReach 5R: Upper Wetland 6 Outflow=78.01 cfs 5.846 af Inflow=274.25 cfs 27.959 afReach 6R: Bluff Creek Drainage Outflow=274.25 cfs 27.959 af Inflow=174.60 cfs 16.561 afReach 8R: South Drainage Outflow=174.60 cfs 16.561 af Inflow=111.61 cfs 10.430 afReach 9R: Wetland 4 Channel Outflow=111.61 cfs 10.430 af Peak Elev=921.22' Storage=13,961 cf Inflow=50.06 cfs 3.129 afPond 6P: Wetland 3 Outflow=40.42 cfs 3.129 af Peak Elev=911.63' Storage=58,742 cf Inflow=55.98 cfs 4.397 afPond 7P: West - South Outflow=25.73 cfs 4.397 af Peak Elev=885.13' Storage=2,571 cf Inflow=106.67 cfs 9.974 afPond 8P: Wetland 4 Outflow=106.57 cfs 9.973 af Total Runoff Area = 80.819 ac Runoff Volume = 27.959 af Average Runoff Depth = 4.15" 99.36% Pervious = 80.298 ac 0.64% Impervious = 0.521 ac MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 179HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 5aS: To Lyman - North Runoff = 6.98 cfs @ 12.11 hrs, Volume= 0.386 af, Depth= 3.00" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Area (sf) CN Description 67,165 61 >75% Grass cover, Good, HSG B 67,165 61 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 7.7 75 0.0600 0.16 Sheet Flow, Grass: Dense n= 0.240 P2= 2.87" 0.2 40 0.1500 2.71 Shallow Concentrated Flow, Short Grass Pasture Kv= 7.0 fps 7.9 115 Total Subcatchment 5aS: To Lyman - North Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)7 6 5 4 3 2 1 0 MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Runoff Area=67,165 sf Runoff Volume=0.386 af Runoff Depth=3.00" Flow Length=115' Tc=7.9 min CN=61 6.98 cfs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 180HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 5oS: From Lyman Runoff = 2.08 cfs @ 12.07 hrs, Volume= 0.098 af, Depth= 4.85" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Area (sf) CN Description 10,548 78 Meadow, non-grazed, HSG D 10,548 78 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 2.1 57 0.3330 0.44 Sheet Flow, Grass: Short n= 0.150 P2= 2.87" 2.9 Direct Entry, Make up to 5 minutes 5.0 57 Total Subcatchment 5oS: From Lyman Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)2 1 0 MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Runoff Area=10,548 sf Runoff Volume=0.098 af Runoff Depth=4.85" Flow Length=57' Slope=0.3330 '/' Tc=5.0 min CN=78 2.08 cfs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 181HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 5S: Northwest Runoff = 77.23 cfs @ 12.21 hrs, Volume= 5.748 af, Depth= 4.79" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Area (sf) CN Description 7,250 55 Woods, Good, HSG B 217,355 79 Pasture/grassland/range, Poor, HSG B 366,575 79 Pasture/grassland/range, Poor, HSG B 7,095 61 >75% Grass cover, Good, HSG B 28,970 55 Woods, Good, HSG B 627,245 Weighted Average 627,245 77 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 7.8 100 0.0300 0.21 Sheet Flow, Range n= 0.130 P2= 2.87" 4.5 419 0.0500 1.57 Shallow Concentrated Flow, Short Grass Pasture Kv= 7.0 fps 0.9 131 0.1220 2.44 Shallow Concentrated Flow, Short Grass Pasture Kv= 7.0 fps 2.7 390 0.0260 2.42 Shallow Concentrated Flow, Wetland Grassed Waterway Kv= 15.0 fps 15.9 1,040 Total MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 182HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Subcatchment 5S: Northwest Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)85 80 75 70 65 60 55 50 45 40 35 30 25 20 15 10 5 0 MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Runoff Area=627,245 sf Runoff Volume=5.748 af Runoff Depth=4.79" Flow Length=1,040' Tc=15.9 min CN=WQ 77.23 cfs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 183HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 6oS: Offsite West - North Runoff = 16.09 cfs @ 12.10 hrs, Volume= 0.913 af, Depth= 4.12" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Area (sf) CN Adj Description 20,000 98 98 Unconnected roofs, HSG B 71,000 61 61 >75% Grass cover, Good, HSG B * 12,720 96 96 Wetland, Good, HSG D 12,145 58 58 Meadow, non-grazed, HSG B 115,865 Weighted Average 95,865 65 65 82.74% Pervious Area 20,000 98 98 17.26% Impervious Area 20,000 100.00% Unconnected Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 5.0 25 0.0200 0.08 Sheet Flow, Grass: Dense n= 0.240 P2= 2.87" 2.3 406 0.0390 2.96 Shallow Concentrated Flow, Grassed Waterway Kv= 15.0 fps 7.3 431 Total Subcatchment 6oS: Offsite West - North Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Runoff Area=115,865 sf Runoff Volume=0.913 af Runoff Depth=4.12" Flow Length=431' Tc=7.3 min UI Adjusted CN=WQ 16.09 cfs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 184HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 6S: West - North Runoff = 35.40 cfs @ 12.14 hrs, Volume= 2.216 af, Depth= 5.14" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Area (sf) CN Description 2,000 77 Woods, Good, HSG D 4,000 55 Woods, Good, HSG B * 25,440 96 Wetland, Good, HSG D 194,085 79 Pasture/grassland/range, Poor, HSG B 225,525 Weighted Average 225,525 80 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 6.4 100 0.0500 0.26 Sheet Flow, Range n= 0.130 P2= 2.87" 3.5 348 0.0550 1.64 Shallow Concentrated Flow, Short Grass Pasture Kv= 7.0 fps 0.7 83 0.0170 1.96 Shallow Concentrated Flow, Wetland Grassed Waterway Kv= 15.0 fps 10.6 531 Total Subcatchment 6S: West - North Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)38 36 34 32 30 28 26 24 22 20 18 16 14 12 10 8 6 4 2 0 MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Runoff Area=225,525 sf Runoff Volume=2.216 af Runoff Depth=5.14" Flow Length=531' Tc=10.6 min CN=WQ 35.40 cfs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 185HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 7oS: Offsite West - South Runoff = 11.48 cfs @ 12.07 hrs, Volume= 0.543 af, Depth= 4.88" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Area (sf) CN Description 45,880 78 Meadow, non-grazed, HSG D 2,700 98 Unconnected roofs, HSG C 9,600 74 >75% Grass cover, Good, HSG C 58,180 Weighted Average 55,480 77 95.36% Pervious Area 2,700 98 4.64% Impervious Area 2,700 100.00% Unconnected Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 2.0 37 0.1620 0.30 Sheet Flow, Grass: Short n= 0.150 P2= 2.87" 3.0 Direct Entry, Make up to 5.0 minutes 5.0 37 Total Subcatchment 7oS: Offsite West - South Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)12 11 10 9 8 7 6 5 4 3 2 1 0 MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Runoff Area=58,180 sf Runoff Volume=0.543 af Runoff Depth=4.88" Flow Length=37' Slope=0.1620 '/' Tc=5.0 min CN=WQ 11.48 cfs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 186HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 7S: West Woods Runoff = 11.00 cfs @ 12.16 hrs, Volume= 0.724 af, Depth= 2.76" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Area (sf) CN Description 117,170 55 Woods, Good, HSG B 19,890 79 Pasture/grassland/range, Poor, HSG B 137,060 Weighted Average 137,060 58 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 8.4 50 0.0600 0.10 Sheet Flow, Woods: Light underbrush n= 0.400 P2= 2.87" 2.7 218 0.0710 1.33 Shallow Concentrated Flow, Woodland Kv= 5.0 fps 11.1 268 Total Subcatchment 7S: West Woods Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)12 11 10 9 8 7 6 5 4 3 2 1 0 MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Runoff Area=137,060 sf Runoff Volume=0.724 af Runoff Depth=2.76" Flow Length=268' Tc=11.1 min CN=WQ 11.00 cfs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 187HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 8S: South - Central to Wetland 4 Runoff = 106.67 cfs @ 12.33 hrs, Volume= 9.974 af, Depth= 4.01" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Area (sf) CN Description * 15,505 79 Wetland 5, Pasture/grassland/range, Poor, HSG B 21,030 55 Woods, Good, HSG B 185,110 79 Pasture/grassland/range, Poor, HSG B 460,890 55 Woods, Good, HSG B 618,235 79 Pasture/grassland/range, Poor, HSG B 1,300,770 Weighted Average 1,300,770 70 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 7.8 100 0.0300 0.21 Sheet Flow, Range n= 0.130 P2= 2.87" 15.2 1,028 0.0260 1.13 Shallow Concentrated Flow, Short Grass Pasture Kv= 7.0 fps 1.5 193 0.0200 2.12 Shallow Concentrated Flow, Wetland Grassed Waterway Kv= 15.0 fps 24.5 1,321 Total Subcatchment 8S: South - Central to Wetland 4 Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)115 110 105 100 95 90 85 80 75 70 65 60 55 50 45 40 35 30 25 20 15 10 5 0 MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Runoff Area=1,300,770 sf Runoff Volume=9.974 af Runoff Depth=4.01" Flow Length=1,321' Tc=24.5 min CN=WQ 106.67 cfs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 188HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 9.1S: East Woods Runoff = 8.28 cfs @ 12.22 hrs, Volume= 0.641 af, Depth= 2.39" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Area (sf) CN Description 140,359 55 Woods, Good, HSG B 140,359 55 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 11.1 75 0.0670 0.11 Sheet Flow, Woods: Light underbrush n= 0.400 P2= 2.87" 4.1 455 0.1380 1.86 Shallow Concentrated Flow, Woodland Kv= 5.0 fps 15.2 530 Total Subcatchment 9.1S: East Woods Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)9 8 7 6 5 4 3 2 1 0 MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Runoff Area=140,359 sf Runoff Volume=0.641 af Runoff Depth=2.39" Flow Length=530' Tc=15.2 min CN=55 8.28 cfs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 189HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 9.2S: Northeast Woods Runoff = 5.30 cfs @ 12.28 hrs, Volume= 0.457 af, Depth= 2.71" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Area (sf) CN Description 76,845 55 Woods, Good, HSG B 11,162 79 Pasture/grassland/range, Poor, HSG B 88,007 Weighted Average 88,007 58 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 14.2 100 0.0650 0.12 Sheet Flow, Woods: Light underbrush n= 0.400 P2= 2.87" 5.3 523 0.1080 1.64 Shallow Concentrated Flow, Woodland Kv= 5.0 fps 19.5 623 Total Subcatchment 9.2S: Northeast Woods Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)5 4 3 2 1 0 MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Runoff Area=88,007 sf Runoff Volume=0.457 af Runoff Depth=2.71" Flow Length=623' Tc=19.5 min CN=WQ 5.30 cfs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 190HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 9.3S: South Runoff = 40.09 cfs @ 12.14 hrs, Volume= 2.443 af, Depth= 4.95" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Area (sf) CN Description 3,690 55 Woods, Good, HSG B 246,824 79 Pasture/grassland/range, Poor, HSG B 7,543 86 Pasture/grassland/range, Poor, HSG C 258,057 Weighted Average 258,057 79 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 6.5 90 0.0390 0.23 Sheet Flow, Range n= 0.130 P2= 2.87" 3.8 460 0.0850 2.04 Shallow Concentrated Flow, Short Grass Pasture Kv= 7.0 fps 10.3 550 Total Subcatchment 9.3S: South Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)44 42 40 38 36 34 32 30 28 26 24 22 20 18 16 14 12 10 8 6 4 2 0 MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Runoff Area=258,057 sf Runoff Volume=2.443 af Runoff Depth=4.95" Flow Length=550' Tc=10.3 min CN=WQ 40.09 cfs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 191HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 9.4S: Southeast Runoff = 40.15 cfs @ 12.22 hrs, Volume= 3.047 af, Depth= 4.92" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Area (sf) CN Description 4,560 55 Woods, Good, HSG B 2,090 58 Meadow, non-grazed, HSG B 313,772 79 Pasture/grassland/range, Poor, HSG B 3,405 86 Pasture/grassland/range, Poor, HSG C 323,827 Weighted Average 323,827 79 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 6.0 55 0.0180 0.15 Sheet Flow, Range n= 0.130 P2= 2.87" 10.5 857 0.0380 1.36 Shallow Concentrated Flow, Short Grass Pasture Kv= 7.0 fps 16.5 912 Total Subcatchment 9.4S: Southeast Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)44 42 40 38 36 34 32 30 28 26 24 22 20 18 16 14 12 10 8 6 4 2 0 MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Runoff Area=323,827 sf Runoff Volume=3.047 af Runoff Depth=4.92" Flow Length=912' Tc=16.5 min CN=WQ 40.15 cfs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 192HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 10S: Southwest Runoff = 8.90 cfs @ 12.26 hrs, Volume= 0.754 af, Depth= 2.39" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Area (sf) CN Description 165,080 55 Woods, Good, HSG B 165,080 55 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 16.0 75 0.0270 0.08 Sheet Flow, Woods: Light underbrush n= 0.400 P2= 2.87" 2.3 195 0.0820 1.43 Shallow Concentrated Flow, Woodland Kv= 5.0 fps 18.3 270 Total Subcatchment 10S: Southwest Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)9 8 7 6 5 4 3 2 1 0 MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Runoff Area=165,080 sf Runoff Volume=0.754 af Runoff Depth=2.39" Flow Length=270' Tc=18.3 min CN=55 8.90 cfs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 193HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 29oS: North Offsite Runoff = 0.10 cfs @ 12.14 hrs, Volume= 0.006 af, Depth= 2.69" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Area (sf) CN Description 1,162 58 Meadow, non-grazed, HSG B 1,162 58 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 10.0 Direct Entry, Subcatchment 29oS: North Offsite Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.105 0.1 0.095 0.09 0.085 0.08 0.075 0.07 0.065 0.06 0.055 0.05 0.045 0.04 0.035 0.03 0.025 0.02 0.015 0.01 0.005 0 MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Runoff Area=1,162 sf Runoff Volume=0.006 af Runoff Depth=2.69" Tc=10.0 min CN=58 0.10 cfs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 194HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 36oS: Southwest Offsite Runoff = 0.14 cfs @ 12.14 hrs, Volume= 0.008 af, Depth= 2.69" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Area (sf) CN Description 1,628 58 Meadow, non-grazed, HSG B 1,628 58 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 10.0 Direct Entry, Subcatchment 36oS: Southwest Offsite Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.15 0.14 0.13 0.12 0.11 0.1 0.09 0.08 0.07 0.06 0.05 0.04 0.03 0.02 0.01 0 MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Runoff Area=1,628 sf Runoff Volume=0.008 af Runoff Depth=2.69" Tc=10.0 min CN=58 0.14 cfs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 195HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Reach 3R: Lower Wetland 6 Inflow Area = 16.210 ac, 0.00% Impervious, Inflow Depth = 4.62" for 100y 24hr event Inflow = 82.54 cfs @ 12.21 hrs, Volume= 6.238 af Outflow = 81.59 cfs @ 12.22 hrs, Volume= 6.238 af, Atten= 1%, Lag= 1.1 min Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Max. Velocity= 1.74 fps, Min. Travel Time= 1.8 min Avg. Velocity = 0.55 fps, Avg. Travel Time= 5.6 min Peak Storage= 8,774 cf @ 12.22 hrs Average Depth at Peak Storage= 1.17' Bank-Full Depth= 5.99' Flow Area= 570.1 sf, Capacity= 3,072.14 cfs Custom cross-section, Length= 187.0' Slope= 0.0053 '/' (102 Elevation Intervals) Constant n= 0.050 Scattered brush, heavy weeds Inlet Invert= 885.00', Outlet Invert= 884.00' ‡ Offset Elevation Chan.Depth (feet) (feet) (feet) 0.00 890.40 0.00 43.10 886.55 3.85 85.60 884.41 5.99 126.20 885.14 5.26 145.10 890.40 0.00 Depth End Area Perim. Storage Discharge (feet) (sq-ft) (feet) (cubic-feet) (cfs) 0.00 0.0 0.0 0 0.00 0.73 20.1 55.1 3,761 22.32 2.14 121.1 88.4 22,648 324.64 5.99 570.1 146.1 106,618 3,072.14 MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 196HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Reach 3R: Lower Wetland 6 Inflow Outflow Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)90 85 80 75 70 65 60 55 50 45 40 35 30 25 20 15 10 5 0 Inflow Area=16.210 ac Avg. Flow Depth=1.17' Max Vel=1.74 fps n=0.050 L=187.0' S=0.0053 '/' Capacity=3,072.14 cfs 82.54 cfs 81.59 cfs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 197HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Stage-Area-Storage for Reach 3R: Lower Wetland 6 Elevation (feet) End-Area (sq-ft) Storage (cubic-feet) 885.00 0.0 0 885.10 0.4 76 885.20 1.5 288 885.30 3.4 635 885.40 6.1 1,135 885.50 9.5 1,770 885.60 13.6 2,541 885.70 18.5 3,463 885.80 24.0 4,494 885.90 29.8 5,576 886.00 35.9 6,704 886.10 42.1 7,875 886.20 48.6 9,088 886.30 55.3 10,348 886.40 62.3 11,650 886.50 69.5 12,995 886.60 76.9 14,386 886.70 84.6 15,820 886.80 92.5 17,296 886.90 100.6 18,819 887.00 109.0 20,385 887.10 117.6 21,992 887.20 126.4 23,643 887.30 135.4 25,322 887.40 144.5 27,028 887.50 153.8 28,763 887.60 163.2 30,526 887.70 172.8 32,315 887.80 182.5 34,133 887.90 192.4 35,978 888.00 202.4 37,850 888.10 212.6 39,751 888.20 222.9 41,679 888.30 233.3 43,634 888.40 243.9 45,618 888.50 254.7 47,629 888.60 265.6 49,667 888.70 276.6 51,734 888.80 287.8 53,828 888.90 299.2 55,949 889.00 310.7 58,098 889.10 322.3 60,276 889.20 334.1 62,479 889.30 346.1 64,712 889.40 358.1 66,972 889.50 370.4 69,259 889.60 382.8 71,574 889.70 395.3 73,918 889.80 408.0 76,287 889.90 420.8 78,686 890.00 433.8 81,112 890.10 446.9 83,565 Elevation (feet) End-Area (sq-ft) Storage (cubic-feet) 890.20 460.1 86,046 890.30 473.6 88,555 890.40 487.1 91,091 890.50 500.8 93,655 890.60 514.7 96,247 890.70 528.7 98,866 890.80 542.9 101,513 890.90 557.2 104,188 891.00 571.6 106,888 MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 198HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Reach 4R: Southwest Drainage [40] Hint: Not Described (Outflow=Inflow) Inflow Area = 16.146 ac, 3.23% Impervious, Inflow Depth = 3.83" for 100y 24hr event Inflow = 31.77 cfs @ 12.47 hrs, Volume= 5.160 af Outflow = 31.77 cfs @ 12.47 hrs, Volume= 5.160 af, Atten= 0%, Lag= 0.0 min Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Reach 4R: Southwest Drainage Inflow Outflow Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)34 32 30 28 26 24 22 20 18 16 14 12 10 8 6 4 2 0 Inflow Area=16.146 ac 31.77 cfs 31.77 cfs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 199HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Reach 5R: Upper Wetland 6 [40] Hint: Not Described (Outflow=Inflow) Inflow Area = 14.642 ac, 0.00% Impervious, Inflow Depth = 4.79" for 100y 24hr event Inflow = 78.01 cfs @ 12.21 hrs, Volume= 5.846 af Outflow = 78.01 cfs @ 12.21 hrs, Volume= 5.846 af, Atten= 0%, Lag= 0.0 min Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Reach 5R: Upper Wetland 6 Inflow Outflow Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)85 80 75 70 65 60 55 50 45 40 35 30 25 20 15 10 5 0 Inflow Area=14.642 ac 78.01 cfs 78.01 cfs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 200HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Reach 6R: Bluff Creek Drainage [40] Hint: Not Described (Outflow=Inflow) Inflow Area = 80.819 ac, 0.64% Impervious, Inflow Depth = 4.15" for 100y 24hr event Inflow = 274.25 cfs @ 12.25 hrs, Volume= 27.959 af Outflow = 274.25 cfs @ 12.25 hrs, Volume= 27.959 af, Atten= 0%, Lag= 0.0 min Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Reach 6R: Bluff Creek Drainage Inflow Outflow Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)300 280 260 240 220 200 180 160 140 120 100 80 60 40 20 0 Inflow Area=80.819 ac 274.25 cfs 274.25 cfs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 201HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Reach 8R: South Drainage [40] Hint: Not Described (Outflow=Inflow) Inflow Area = 48.462 ac, 0.00% Impervious, Inflow Depth = 4.10" for 100y 24hr event Inflow = 174.60 cfs @ 12.27 hrs, Volume= 16.561 af Outflow = 174.60 cfs @ 12.27 hrs, Volume= 16.561 af, Atten= 0%, Lag= 0.0 min Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Reach 8R: South Drainage Inflow Outflow Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)190 180 170 160 150 140 130 120 110 100 90 80 70 60 50 40 30 20 10 0 Inflow Area=48.462 ac 174.60 cfs 174.60 cfs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 202HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Reach 9R: Wetland 4 Channel [40] Hint: Not Described (Outflow=Inflow) Inflow Area = 31.882 ac, 0.00% Impervious, Inflow Depth = 3.93" for 100y 24hr event Inflow = 111.61 cfs @ 12.34 hrs, Volume= 10.430 af Outflow = 111.61 cfs @ 12.34 hrs, Volume= 10.430 af, Atten= 0%, Lag= 0.0 min Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Reach 9R: Wetland 4 Channel Inflow Outflow Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)120 115 110 105 100 95 90 85 80 75 70 65 60 55 50 45 40 35 30 25 20 15 10 5 0 Inflow Area=31.882 ac 111.61 cfs 111.61 cfs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 203HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Pond 6P: Wetland 3 Inflow Area = 7.837 ac, 5.86% Impervious, Inflow Depth = 4.79" for 100y 24hr event Inflow = 50.06 cfs @ 12.13 hrs, Volume= 3.129 af Outflow = 40.42 cfs @ 12.20 hrs, Volume= 3.129 af, Atten= 19%, Lag= 4.1 min Primary = 40.42 cfs @ 12.20 hrs, Volume= 3.129 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 921.22' @ 12.20 hrs Surf.Area= 38,518 sf Storage= 13,961 cf Plug-Flow detention time= 6.9 min calculated for 3.129 af (100% of inflow) Center-of-Mass det. time= 7.3 min ( 780.9 - 773.6 ) Volume Invert Avail.Storage Storage Description #1 920.58' 140,121 cf Custom Stage Data (Prismatic) Listed below (Recalc) Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 920.58 100 0 0 921.00 30,000 6,321 6,321 922.00 68,200 49,100 55,421 923.00 101,200 84,700 140,121 Device Routing Invert Outlet Devices #1 Primary 920.58'Asymmetrical Weir, C= 3.27 Offset (feet) 0.00 10.50 22.75 36.75 74.10 Height (feet) 2.09 0.33 0.10 0.00 2.09 Primary OutFlow Max=40.39 cfs @ 12.20 hrs HW=921.22' TW=910.72' (Dynamic Tailwater) 1=Asymmetrical Weir (Weir Controls 40.39 cfs @ 1.71 fps) MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 204HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Pond 6P: Wetland 3 Inflow Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)55 50 45 40 35 30 25 20 15 10 5 0 Inflow Area=7.837 ac Peak Elev=921.22' Storage=13,961 cf 50.06 cfs 40.42 cfs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 205HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Stage-Area-Storage for Pond 6P: Wetland 3 Elevation (feet) Surface (sq-ft) Storage (cubic-feet) 920.58 100 0 920.63 3,660 94 920.68 7,219 366 920.73 10,779 816 920.78 14,338 1,444 920.83 17,898 2,250 920.88 21,457 3,234 920.93 25,017 4,395 920.98 28,576 5,735 921.03 31,146 7,238 921.08 33,056 8,843 921.13 34,966 10,544 921.18 36,876 12,340 921.23 38,786 14,231 921.28 40,696 16,218 921.33 42,606 18,301 921.38 44,516 20,479 921.43 46,426 22,753 921.48 48,336 25,122 921.53 50,246 27,586 921.58 52,156 30,146 921.63 54,066 32,802 921.68 55,976 35,553 921.73 57,886 38,399 921.78 59,796 41,341 921.83 61,706 44,379 921.88 63,616 47,512 921.93 65,526 50,741 921.98 67,436 54,065 922.03 69,190 57,482 922.08 70,840 60,983 922.13 72,490 64,566 922.18 74,140 68,232 922.23 75,790 71,980 922.28 77,440 75,811 922.33 79,090 79,724 922.38 80,740 83,720 922.43 82,390 87,798 922.48 84,040 91,959 922.53 85,690 96,202 922.58 87,340 100,528 922.63 88,990 104,936 922.68 90,640 109,427 922.73 92,290 114,000 922.78 93,940 118,656 922.83 95,590 123,394 922.88 97,240 128,215 922.93 98,890 133,118 922.98 100,540 138,104 MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 206HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Pond 7P: West - South Inflow Area = 12.319 ac, 4.23% Impervious, Inflow Depth = 4.28" for 100y 24hr event Inflow = 55.98 cfs @ 12.17 hrs, Volume= 4.397 af Outflow = 25.73 cfs @ 12.50 hrs, Volume= 4.397 af, Atten= 54%, Lag= 19.4 min Primary = 25.73 cfs @ 12.50 hrs, Volume= 4.397 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 911.63' @ 12.50 hrs Surf.Area= 28,667 sf Storage= 58,742 cf Plug-Flow detention time= 39.8 min calculated for 4.397 af (100% of inflow) Center-of-Mass det. time= 39.8 min ( 823.1 - 783.4 ) Volume Invert Avail.Storage Storage Description #1 906.98' 69,886 cf Custom Stage Data (Prismatic) Listed below (Recalc) Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 906.98 10 0 0 908.00 2,390 1,224 1,224 909.00 9,076 5,733 6,957 910.00 17,981 13,529 20,485 911.00 24,971 21,476 41,961 912.00 30,878 27,925 69,886 Device Routing Invert Outlet Devices #1 Primary 906.98'15.0" Round Culvert L= 48.8' RCP, end-section conforming to fill, Ke= 0.500 Inlet / Outlet Invert= 906.98' / 906.00' S= 0.0201 '/' Cc= 0.900 n= 0.013 Concrete pipe, straight & clean, Flow Area= 1.23 sf #2 Primary 911.22'Asymmetrical Weir, C= 3.27 Offset (feet) 0.00 12.00 18.00 28.00 49.00 88.00 Height (feet) 1.35 0.02 0.00 0.15 0.70 1.35 Primary OutFlow Max=25.73 cfs @ 12.50 hrs HW=911.63' TW=0.00' (Dynamic Tailwater) 1=Culvert (Inlet Controls 11.85 cfs @ 9.65 fps) 2=Asymmetrical Weir (Weir Controls 13.88 cfs @ 1.34 fps) MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 207HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Pond 7P: West - South Inflow Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)60 55 50 45 40 35 30 25 20 15 10 5 0 Inflow Area=12.319 ac Peak Elev=911.63' Storage=58,742 cf 55.98 cfs 25.73 cfs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 208HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Stage-Area-Storage for Pond 7P: West - South Elevation (feet) Surface (sq-ft) Storage (cubic-feet) 906.98 10 0 907.08 243 13 907.18 477 49 907.28 710 108 907.38 943 191 907.48 1,177 297 907.58 1,410 426 907.68 1,643 579 907.78 1,877 755 907.88 2,110 954 907.98 2,343 1,177 908.08 2,925 1,437 908.18 3,593 1,763 908.28 4,262 2,155 908.38 4,931 2,615 908.48 5,599 3,141 908.58 6,268 3,735 908.68 6,936 4,395 908.78 7,605 5,122 908.88 8,274 5,916 908.98 8,942 6,777 909.08 9,788 7,712 909.18 10,679 8,735 909.28 11,569 9,847 909.38 12,460 11,049 909.48 13,350 12,339 909.58 14,241 13,719 909.68 15,131 15,188 909.78 16,022 16,745 909.88 16,912 18,392 909.98 17,803 20,128 910.08 18,540 21,946 910.18 19,239 23,835 910.28 19,938 25,794 910.38 20,637 27,823 910.48 21,336 29,922 910.58 22,035 32,090 910.68 22,734 34,329 910.78 23,433 36,637 910.88 24,132 39,015 910.98 24,831 41,463 911.08 25,444 43,978 911.18 26,034 46,552 911.28 26,625 49,185 911.38 27,216 51,877 911.48 27,806 54,628 911.58 28,397 57,438 911.68 28,988 60,307 911.78 29,578 63,236 911.88 30,169 66,223 911.98 30,760 69,270 912.08 30,878 69,886 Elevation (feet) Surface (sq-ft) Storage (cubic-feet) 912.18 30,878 69,886 912.28 30,878 69,886 912.38 30,878 69,886 912.48 30,878 69,886 MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 209HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Pond 8P: Wetland 4 Inflow Area = 29.862 ac, 0.00% Impervious, Inflow Depth = 4.01" for 100y 24hr event Inflow = 106.67 cfs @ 12.33 hrs, Volume= 9.974 af Outflow = 106.57 cfs @ 12.34 hrs, Volume= 9.973 af, Atten= 0%, Lag= 0.4 min Primary = 106.57 cfs @ 12.34 hrs, Volume= 9.973 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 885.13' @ 12.34 hrs Surf.Area= 4,056 sf Storage= 2,571 cf Plug-Flow detention time= 0.9 min calculated for 9.973 af (100% of inflow) Center-of-Mass det. time= 0.9 min ( 799.3 - 798.4 ) Volume Invert Avail.Storage Storage Description #1 884.00' 37,633 cf Custom Stage Data (Prismatic) Listed below (Recalc) Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 884.00 870 0 0 884.50 1,980 713 713 885.00 3,500 1,370 2,083 886.00 7,800 5,650 7,733 887.00 14,000 10,900 18,633 888.00 24,000 19,000 37,633 Device Routing Invert Outlet Devices #1 Primary 884.03'Asymmetrical Weir, C= 3.27 Offset (feet) 0.00 51.00 133.60 176.00 217.30 239.00 Elev. (feet) 889.78 886.05 884.03 885.84 889.00 889.78 Primary OutFlow Max=106.54 cfs @ 12.34 hrs HW=885.13' TW=0.00' (Dynamic Tailwater) 1=Asymmetrical Weir (Weir Controls 106.54 cfs @ 1.37 fps) MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 210HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Pond 8P: Wetland 4 Inflow Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)115 110 105 100 95 90 85 80 75 70 65 60 55 50 45 40 35 30 25 20 15 10 5 0 Inflow Area=29.862 ac Peak Elev=885.13' Storage=2,571 cf 106.67 cfs 106.57 cfs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda - Existing Printed 8/23/2018Prepared by LANDFORM Page 211HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Stage-Area-Storage for Pond 8P: Wetland 4 Elevation (feet) Surface (sq-ft) Storage (cubic-feet) 884.00 870 0 884.10 1,092 98 884.20 1,314 218 884.30 1,536 361 884.40 1,758 526 884.50 1,980 713 884.60 2,284 926 884.70 2,588 1,169 884.80 2,892 1,443 884.90 3,196 1,748 885.00 3,500 2,083 885.10 3,930 2,454 885.20 4,360 2,869 885.30 4,790 3,326 885.40 5,220 3,826 885.50 5,650 4,370 885.60 6,080 4,957 885.70 6,510 5,586 885.80 6,940 6,258 885.90 7,370 6,974 886.00 7,800 7,733 886.10 8,420 8,544 886.20 9,040 9,417 886.30 9,660 10,351 886.40 10,280 11,348 886.50 10,900 12,408 886.60 11,520 13,529 886.70 12,140 14,712 886.80 12,760 15,956 886.90 13,380 17,263 887.00 14,000 18,633 887.10 15,000 20,083 887.20 16,000 21,633 887.30 17,000 23,282 887.40 18,000 25,032 887.50 19,000 26,883 887.60 20,000 28,833 887.70 21,000 30,883 887.80 22,000 33,032 887.90 23,000 35,282 888.00 24,000 37,633 888.10 24,000 37,633 888.20 24,000 37,633 888.30 24,000 37,633 888.40 24,000 37,633 888.50 24,000 37,633 888.60 24,000 37,633 888.70 24,000 37,633 888.80 24,000 37,633 888.90 24,000 37,633 889.00 24,000 37,633 889.10 24,000 37,633 Elevation (feet) Surface (sq-ft) Storage (cubic-feet) 889.20 24,000 37,633 889.30 24,000 37,633 889.40 24,000 37,633 889.50 24,000 37,633 889.60 24,000 37,633 889.70 24,000 37,633 8S South - Central to Wetland 4 9.1S East Woods 9.2S Northeast Woods 9.3S South 9.4S Southeast 71-1S Interlacn Subcatch 1 71-2S Interlacn Subcatch 2 72S 6_Temp 73S N68 74S 5_Temp 75S 3225 76S 3236 77S 3238 78S 3243 79S 3245 80S 3250 81S 3343 82S 3345 83S 3348 84S SE12 85S 1S 86S 2S 87S M9 8R South Drainage 9R Wetland 4 Channel 72R N68 8P Wetland 4 71P Interlachen 72P South MNDOT M9 Wetland Routing Diagram for Avienda - Existing Prepared by LANDFORM, Printed 8/3/2018 HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Subcat Reach Pond Link MSE 24-hr 3 1-Year A Rainfall=2.47"Avienda - Existing Printed 8/3/2018Prepared by LANDFORM Page 2HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Time span=0.00-360.00 hrs, dt=0.01 hrs, 36001 points Runoff by SCS TR-20 method, UH=SCS, Weighted-Q Reach routing by Dyn-Stor-Ind method - Pond routing by Dyn-Stor-Ind method Runoff Area=1,300,770 sf 0.00% Impervious Runoff Depth=0.54"Subcatchment 8S: South - Central to Flow Length=1,321' Tc=24.5 min CN=WQ Runoff=14.74 cfs 1.352 af Runoff Area=140,359 sf 0.00% Impervious Runoff Depth=0.08"Subcatchment 9.1S: East Woods Flow Length=530' Tc=15.2 min CN=55 Runoff=0.06 cfs 0.021 af Runoff Area=88,007 sf 0.00% Impervious Runoff Depth=0.17"Subcatchment 9.2S: Northeast Woods Flow Length=623' Tc=19.5 min CN=WQ Runoff=0.23 cfs 0.029 af Runoff Area=258,057 sf 0.00% Impervious Runoff Depth=0.82"Subcatchment 9.3S: South Flow Length=550' Tc=10.3 min CN=WQ Runoff=7.26 cfs 0.404 af Runoff Area=323,827 sf 0.00% Impervious Runoff Depth=0.81"Subcatchment 9.4S: Southeast Flow Length=912' Tc=16.5 min CN=WQ Runoff=7.14 cfs 0.500 af Runoff Area=2.080 ac 0.00% Impervious Runoff Depth=1.09"Subcatchment 71-1S: Interlacn Subcatch 1 Tc=7.0 min CN=84 Runoff=4.06 cfs 0.189 af Runoff Area=1.160 ac 100.00% Impervious Runoff Depth=2.47"Subcatchment 71-2S: Interlacn Subcatch 2 Tc=7.0 min CN=100 Runoff=4.13 cfs 0.239 af Runoff Area=0.810 ac 0.00% Impervious Runoff Depth=1.84"Subcatchment 72S: 6_Temp Tc=9.0 min CN=94 Runoff=2.34 cfs 0.124 af Runoff Area=2.360 ac 100.00% Impervious Runoff Depth=2.24"Subcatchment 73S: N68 Tc=7.0 min CN=98 Runoff=8.24 cfs 0.441 af Runoff Area=1.020 ac 0.00% Impervious Runoff Depth=1.50"Subcatchment 74S: 5_Temp Tc=9.0 min CN=90 Runoff=2.49 cfs 0.128 af Runoff Area=3.010 ac 100.00% Impervious Runoff Depth=2.24"Subcatchment 75S: 3225 Tc=7.0 min CN=98 Runoff=10.51 cfs 0.562 af Runoff Area=8.310 ac 0.00% Impervious Runoff Depth=0.87"Subcatchment 76S: 3236 Tc=14.0 min CN=80 Runoff=9.43 cfs 0.601 af Runoff Area=0.950 ac 0.00% Impervious Runoff Depth=1.03"Subcatchment 77S: 3238 Tc=7.0 min CN=83 Runoff=1.75 cfs 0.082 af Runoff Area=0.630 ac 0.00% Impervious Runoff Depth=1.58"Subcatchment 78S: 3243 Tc=7.0 min CN=91 Runoff=1.74 cfs 0.083 af Runoff Area=2.050 ac 100.00% Impervious Runoff Depth=2.24"Subcatchment 79S: 3245 Tc=7.0 min CN=98 Runoff=7.16 cfs 0.383 af Runoff Area=0.350 ac 0.00% Impervious Runoff Depth=1.50"Subcatchment 80S: 3250 Tc=7.0 min CN=90 Runoff=0.93 cfs 0.044 af MSE 24-hr 3 1-Year A Rainfall=2.47"Avienda - Existing Printed 8/3/2018Prepared by LANDFORM Page 3HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Runoff Area=5.950 ac 0.00% Impervious Runoff Depth=0.68"Subcatchment 81S: 3343 Tc=19.0 min CN=76 Runoff=4.28 cfs 0.335 af Runoff Area=1.480 ac 0.00% Impervious Runoff Depth=0.77"Subcatchment 82S: 3345 Tc=7.0 min CN=78 Runoff=1.98 cfs 0.095 af Runoff Area=0.700 ac 0.00% Impervious Runoff Depth=1.29"Subcatchment 83S: 3348 Tc=7.0 min CN=87 Runoff=1.60 cfs 0.075 af Runoff Area=2.100 ac 0.00% Impervious Runoff Depth=0.82"Subcatchment 84S: SE12 Tc=11.0 min CN=79 Runoff=2.51 cfs 0.143 af Runoff Area=4.530 ac 0.00% Impervious Runoff Depth=0.41"Subcatchment 85S: 1S Tc=15.0 min CN=69 Runoff=1.85 cfs 0.154 af Runoff Area=5.800 ac 0.00% Impervious Runoff Depth=0.41"Subcatchment 86S: 2S Tc=25.0 min CN=69 Runoff=1.80 cfs 0.197 af Runoff Area=21.638 ac 0.00% Impervious Runoff Depth=0.68"Subcatchment 87S: M9 Tc=29.0 min CN=76 Runoff=12.22 cfs 1.220 af Inflow=24.83 cfs 2.304 afReach 8R: South Drainage Outflow=24.83 cfs 2.304 af Inflow=14.93 cfs 1.380 afReach 9R: Wetland 4 Channel Outflow=14.93 cfs 1.380 af Avg. Flow Depth=1.13' Max Vel=7.07 fps Inflow=12.90 cfs 0.693 afReach 72R: N68 24.0" Round Pipe n=0.012 L=63.0' S=0.0075 '/' Capacity=21.17 cfs Outflow=12.90 cfs 0.693 af Peak Elev=884.53' Storage=769 cf Inflow=14.74 cfs 1.352 afPond 8P: Wetland 4 Outflow=14.72 cfs 1.351 af Peak Elev=871.46' Storage=77,301 cf Inflow=55.58 cfs 3.381 afPond 71P: Interlachen Outflow=8.74 cfs 3.371 af Peak Elev=870.19' Storage=246,357 cf Inflow=47.40 cfs 7.388 afPond 72P: South MNDOT M9 Wetland Outflow=1.64 cfs 7.123 af Total Runoff Area = 113.390 ac Runoff Volume = 7.399 af Average Runoff Depth = 0.78" 92.43% Pervious = 104.810 ac 7.57% Impervious = 8.580 ac MSE 24-hr 3 1-Year A Rainfall=2.47"Avienda - Existing Printed 8/3/2018Prepared by LANDFORM Page 4HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 8S: South - Central to Wetland 4 Runoff = 14.74 cfs @ 12.38 hrs, Volume= 1.352 af, Depth= 0.54" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MSE 24-hr 3 1-Year A Rainfall=2.47" Area (sf) CN Description * 15,505 79 Wetland 5, Pasture/grassland/range, Poor, HSG B 21,030 55 Woods, Good, HSG B 185,110 79 Pasture/grassland/range, Poor, HSG B 460,890 55 Woods, Good, HSG B 618,235 79 Pasture/grassland/range, Poor, HSG B 1,300,770 Weighted Average 1,300,770 70 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 7.8 100 0.0300 0.21 Sheet Flow, Range n= 0.130 P2= 2.87" 15.2 1,028 0.0260 1.13 Shallow Concentrated Flow, Short Grass Pasture Kv= 7.0 fps 1.5 193 0.0200 2.12 Shallow Concentrated Flow, Wetland Grassed Waterway Kv= 15.0 fps 24.5 1,321 Total Subcatchment 8S: South - Central to Wetland 4 Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 MSE 24-hr 3 1-Year A Rainfall=2.47" Runoff Area=1,300,770 sf Runoff Volume=1.352 af Runoff Depth=0.54" Flow Length=1,321' Tc=24.5 min CN=WQ 14.74 cfs MSE 24-hr 3 1-Year A Rainfall=2.47"Avienda - Existing Printed 8/3/2018Prepared by LANDFORM Page 5HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 9.1S: East Woods Runoff = 0.06 cfs @ 12.65 hrs, Volume= 0.021 af, Depth= 0.08" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MSE 24-hr 3 1-Year A Rainfall=2.47" Area (sf) CN Description 140,359 55 Woods, Good, HSG B 140,359 55 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 11.1 75 0.0670 0.11 Sheet Flow, Woods: Light underbrush n= 0.400 P2= 2.87" 4.1 455 0.1380 1.86 Shallow Concentrated Flow, Woodland Kv= 5.0 fps 15.2 530 Total Subcatchment 9.1S: East Woods Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.065 0.06 0.055 0.05 0.045 0.04 0.035 0.03 0.025 0.02 0.015 0.01 0.005 0 MSE 24-hr 3 1-Year A Rainfall=2.47" Runoff Area=140,359 sf Runoff Volume=0.021 af Runoff Depth=0.08" Flow Length=530' Tc=15.2 min CN=55 0.06 cfs MSE 24-hr 3 1-Year A Rainfall=2.47"Avienda - Existing Printed 8/3/2018Prepared by LANDFORM Page 6HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 9.2S: Northeast Woods Runoff = 0.23 cfs @ 12.31 hrs, Volume= 0.029 af, Depth= 0.17" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MSE 24-hr 3 1-Year A Rainfall=2.47" Area (sf) CN Description 76,845 55 Woods, Good, HSG B 11,162 79 Pasture/grassland/range, Poor, HSG B 88,007 Weighted Average 88,007 58 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 14.2 100 0.0650 0.12 Sheet Flow, Woods: Light underbrush n= 0.400 P2= 2.87" 5.3 523 0.1080 1.64 Shallow Concentrated Flow, Woodland Kv= 5.0 fps 19.5 623 Total Subcatchment 9.2S: Northeast Woods Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.25 0.24 0.23 0.22 0.21 0.2 0.19 0.18 0.17 0.16 0.15 0.14 0.13 0.12 0.11 0.1 0.09 0.08 0.07 0.06 0.05 0.04 0.03 0.02 0.01 0 MSE 24-hr 3 1-Year A Rainfall=2.47" Runoff Area=88,007 sf Runoff Volume=0.029 af Runoff Depth=0.17" Flow Length=623' Tc=19.5 min CN=WQ 0.23 cfs MSE 24-hr 3 1-Year A Rainfall=2.47"Avienda - Existing Printed 8/3/2018Prepared by LANDFORM Page 7HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 9.3S: South Runoff = 7.26 cfs @ 12.19 hrs, Volume= 0.404 af, Depth= 0.82" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MSE 24-hr 3 1-Year A Rainfall=2.47" Area (sf) CN Description 3,690 55 Woods, Good, HSG B 246,824 79 Pasture/grassland/range, Poor, HSG B 7,543 86 Pasture/grassland/range, Poor, HSG C 258,057 Weighted Average 258,057 79 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 6.5 90 0.0390 0.23 Sheet Flow, Range n= 0.130 P2= 2.87" 3.8 460 0.0850 2.04 Shallow Concentrated Flow, Short Grass Pasture Kv= 7.0 fps 10.3 550 Total Subcatchment 9.3S: South Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)8 7 6 5 4 3 2 1 0 MSE 24-hr 3 1-Year A Rainfall=2.47" Runoff Area=258,057 sf Runoff Volume=0.404 af Runoff Depth=0.82" Flow Length=550' Tc=10.3 min CN=WQ 7.26 cfs MSE 24-hr 3 1-Year A Rainfall=2.47"Avienda - Existing Printed 8/3/2018Prepared by LANDFORM Page 8HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 9.4S: Southeast Runoff = 7.14 cfs @ 12.26 hrs, Volume= 0.500 af, Depth= 0.81" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MSE 24-hr 3 1-Year A Rainfall=2.47" Area (sf) CN Description 4,560 55 Woods, Good, HSG B 2,090 58 Meadow, non-grazed, HSG B 313,772 79 Pasture/grassland/range, Poor, HSG B 3,405 86 Pasture/grassland/range, Poor, HSG C 323,827 Weighted Average 323,827 79 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 6.0 55 0.0180 0.15 Sheet Flow, Range n= 0.130 P2= 2.87" 10.5 857 0.0380 1.36 Shallow Concentrated Flow, Short Grass Pasture Kv= 7.0 fps 16.5 912 Total Subcatchment 9.4S: Southeast Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)7 6 5 4 3 2 1 0 MSE 24-hr 3 1-Year A Rainfall=2.47" Runoff Area=323,827 sf Runoff Volume=0.500 af Runoff Depth=0.81" Flow Length=912' Tc=16.5 min CN=WQ 7.14 cfs MSE 24-hr 3 1-Year A Rainfall=2.47"Avienda - Existing Printed 8/3/2018Prepared by LANDFORM Page 9HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 71-1S: Interlacn Subcatch 1 Runoff = 4.06 cfs @ 12.15 hrs, Volume= 0.189 af, Depth= 1.09" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MSE 24-hr 3 1-Year A Rainfall=2.47" Area (ac) CN Description * 2.080 84 Weoghted 2.080 84 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 7.0 Direct Entry, Subcatchment 71-1S: Interlacn Subcatch 1 Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)4 3 2 1 0 MSE 24-hr 3 1-Year A Rainfall=2.47" Runoff Area=2.080 ac Runoff Volume=0.189 af Runoff Depth=1.09" Tc=7.0 min CN=84 4.06 cfs MSE 24-hr 3 1-Year A Rainfall=2.47"Avienda - Existing Printed 8/3/2018Prepared by LANDFORM Page 10HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 71-2S: Interlacn Subcatch 2 Runoff = 4.13 cfs @ 12.14 hrs, Volume= 0.239 af, Depth= 2.47" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MSE 24-hr 3 1-Year A Rainfall=2.47" Area (ac) CN Description * 1.160 100 1.160 100 100.00% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 7.0 Direct Entry, Subcatchment 71-2S: Interlacn Subcatch 2 Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)4 3 2 1 0 MSE 24-hr 3 1-Year A Rainfall=2.47" Runoff Area=1.160 ac Runoff Volume=0.239 af Runoff Depth=2.47" Tc=7.0 min CN=100 4.13 cfs MSE 24-hr 3 1-Year A Rainfall=2.47"Avienda - Existing Printed 8/3/2018Prepared by LANDFORM Page 11HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 72S: 6_Temp Runoff = 2.34 cfs @ 12.16 hrs, Volume= 0.124 af, Depth= 1.84" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MSE 24-hr 3 1-Year A Rainfall=2.47" Area (ac) CN Description * 0.810 94 Weighted 0.810 94 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 9.0 Direct Entry, Subcatchment 72S: 6_Temp Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)2 1 0 MSE 24-hr 3 1-Year A Rainfall=2.47" Runoff Area=0.810 ac Runoff Volume=0.124 af Runoff Depth=1.84" Tc=9.0 min CN=94 2.34 cfs MSE 24-hr 3 1-Year A Rainfall=2.47"Avienda - Existing Printed 8/3/2018Prepared by LANDFORM Page 12HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 73S: N68 Runoff = 8.24 cfs @ 12.14 hrs, Volume= 0.441 af, Depth= 2.24" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MSE 24-hr 3 1-Year A Rainfall=2.47" Area (ac) CN Description * 2.360 98 Weighted 2.360 98 100.00% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 7.0 Direct Entry, Subcatchment 73S: N68 Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)9 8 7 6 5 4 3 2 1 0 MSE 24-hr 3 1-Year A Rainfall=2.47" Runoff Area=2.360 ac Runoff Volume=0.441 af Runoff Depth=2.24" Tc=7.0 min CN=98 8.24 cfs MSE 24-hr 3 1-Year A Rainfall=2.47"Avienda - Existing Printed 8/3/2018Prepared by LANDFORM Page 13HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 74S: 5_Temp Runoff = 2.49 cfs @ 12.16 hrs, Volume= 0.128 af, Depth= 1.50" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MSE 24-hr 3 1-Year A Rainfall=2.47" Area (ac) CN Description * 1.020 90 1.020 90 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 9.0 Direct Entry, Subcatchment 74S: 5_Temp Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)2 1 0 MSE 24-hr 3 1-Year A Rainfall=2.47" Runoff Area=1.020 ac Runoff Volume=0.128 af Runoff Depth=1.50" Tc=9.0 min CN=90 2.49 cfs MSE 24-hr 3 1-Year A Rainfall=2.47"Avienda - Existing Printed 8/3/2018Prepared by LANDFORM Page 14HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 75S: 3225 Runoff = 10.51 cfs @ 12.14 hrs, Volume= 0.562 af, Depth= 2.24" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MSE 24-hr 3 1-Year A Rainfall=2.47" Area (ac) CN Description * 3.010 98 Weighted 3.010 98 100.00% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 7.0 Direct Entry, Subcatchment 75S: 3225 Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)11 10 9 8 7 6 5 4 3 2 1 0 MSE 24-hr 3 1-Year A Rainfall=2.47" Runoff Area=3.010 ac Runoff Volume=0.562 af Runoff Depth=2.24" Tc=7.0 min CN=98 10.51 cfs MSE 24-hr 3 1-Year A Rainfall=2.47"Avienda - Existing Printed 8/3/2018Prepared by LANDFORM Page 15HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 76S: 3236 Runoff = 9.43 cfs @ 12.23 hrs, Volume= 0.601 af, Depth= 0.87" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MSE 24-hr 3 1-Year A Rainfall=2.47" Area (ac) CN Description * 8.310 80 Weighted 8.310 80 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 14.0 Direct Entry, Subcatchment 76S: 3236 Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)10 9 8 7 6 5 4 3 2 1 0 MSE 24-hr 3 1-Year A Rainfall=2.47" Runoff Area=8.310 ac Runoff Volume=0.601 af Runoff Depth=0.87" Tc=14.0 min CN=80 9.43 cfs MSE 24-hr 3 1-Year A Rainfall=2.47"Avienda - Existing Printed 8/3/2018Prepared by LANDFORM Page 16HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 77S: 3238 Runoff = 1.75 cfs @ 12.15 hrs, Volume= 0.082 af, Depth= 1.03" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MSE 24-hr 3 1-Year A Rainfall=2.47" Area (ac) CN Description * 0.950 83 Weighted 0.950 83 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 7.0 Direct Entry, Subcatchment 77S: 3238 Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)1 0 MSE 24-hr 3 1-Year A Rainfall=2.47" Runoff Area=0.950 ac Runoff Volume=0.082 af Runoff Depth=1.03" Tc=7.0 min CN=83 1.75 cfs MSE 24-hr 3 1-Year A Rainfall=2.47"Avienda - Existing Printed 8/3/2018Prepared by LANDFORM Page 17HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 78S: 3243 Runoff = 1.74 cfs @ 12.14 hrs, Volume= 0.083 af, Depth= 1.58" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MSE 24-hr 3 1-Year A Rainfall=2.47" Area (ac) CN Description * 0.630 91 Weighted 0.630 91 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 7.0 Direct Entry, Subcatchment 78S: 3243 Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)1 0 MSE 24-hr 3 1-Year A Rainfall=2.47" Runoff Area=0.630 ac Runoff Volume=0.083 af Runoff Depth=1.58" Tc=7.0 min CN=91 1.74 cfs MSE 24-hr 3 1-Year A Rainfall=2.47"Avienda - Existing Printed 8/3/2018Prepared by LANDFORM Page 18HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 79S: 3245 Runoff = 7.16 cfs @ 12.14 hrs, Volume= 0.383 af, Depth= 2.24" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MSE 24-hr 3 1-Year A Rainfall=2.47" Area (ac) CN Description * 2.050 98 Weighted 2.050 98 100.00% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 7.0 Direct Entry, Subcatchment 79S: 3245 Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)8 7 6 5 4 3 2 1 0 MSE 24-hr 3 1-Year A Rainfall=2.47" Runoff Area=2.050 ac Runoff Volume=0.383 af Runoff Depth=2.24" Tc=7.0 min CN=98 7.16 cfs MSE 24-hr 3 1-Year A Rainfall=2.47"Avienda - Existing Printed 8/3/2018Prepared by LANDFORM Page 19HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 80S: 3250 Runoff = 0.93 cfs @ 12.14 hrs, Volume= 0.044 af, Depth= 1.50" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MSE 24-hr 3 1-Year A Rainfall=2.47" Area (ac) CN Description * 0.350 90 Weighted 0.350 90 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 7.0 Direct Entry, Subcatchment 80S: 3250 Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)1 0 MSE 24-hr 3 1-Year A Rainfall=2.47" Runoff Area=0.350 ac Runoff Volume=0.044 af Runoff Depth=1.50" Tc=7.0 min CN=90 0.93 cfs MSE 24-hr 3 1-Year A Rainfall=2.47"Avienda - Existing Printed 8/3/2018Prepared by LANDFORM Page 20HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 81S: 3343 Runoff = 4.28 cfs @ 12.31 hrs, Volume= 0.335 af, Depth= 0.68" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MSE 24-hr 3 1-Year A Rainfall=2.47" Area (ac) CN Description * 5.950 76 Weighted 5.950 76 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 19.0 Direct Entry, Subcatchment 81S: 3343 Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)4 3 2 1 0 MSE 24-hr 3 1-Year A Rainfall=2.47" Runoff Area=5.950 ac Runoff Volume=0.335 af Runoff Depth=0.68" Tc=19.0 min CN=76 4.28 cfs MSE 24-hr 3 1-Year A Rainfall=2.47"Avienda - Existing Printed 8/3/2018Prepared by LANDFORM Page 21HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 82S: 3345 Runoff = 1.98 cfs @ 12.15 hrs, Volume= 0.095 af, Depth= 0.77" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MSE 24-hr 3 1-Year A Rainfall=2.47" Area (ac) CN Description * 1.480 78 Weighted 1.480 78 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 7.0 Direct Entry, Subcatchment 82S: 3345 Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)2 1 0 MSE 24-hr 3 1-Year A Rainfall=2.47" Runoff Area=1.480 ac Runoff Volume=0.095 af Runoff Depth=0.77" Tc=7.0 min CN=78 1.98 cfs MSE 24-hr 3 1-Year A Rainfall=2.47"Avienda - Existing Printed 8/3/2018Prepared by LANDFORM Page 22HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 83S: 3348 Runoff = 1.60 cfs @ 12.14 hrs, Volume= 0.075 af, Depth= 1.29" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MSE 24-hr 3 1-Year A Rainfall=2.47" Area (ac) CN Description * 0.700 87 Weighted 0.700 87 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 7.0 Direct Entry, Subcatchment 83S: 3348 Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)1 0 MSE 24-hr 3 1-Year A Rainfall=2.47" Runoff Area=0.700 ac Runoff Volume=0.075 af Runoff Depth=1.29" Tc=7.0 min CN=87 1.60 cfs MSE 24-hr 3 1-Year A Rainfall=2.47"Avienda - Existing Printed 8/3/2018Prepared by LANDFORM Page 23HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 84S: SE12 Runoff = 2.51 cfs @ 12.19 hrs, Volume= 0.143 af, Depth= 0.82" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MSE 24-hr 3 1-Year A Rainfall=2.47" Area (ac) CN Description * 2.100 79 Weighted 2.100 79 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 11.0 Direct Entry, Subcatchment 84S: SE12 Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)2 1 0 MSE 24-hr 3 1-Year A Rainfall=2.47" Runoff Area=2.100 ac Runoff Volume=0.143 af Runoff Depth=0.82" Tc=11.0 min CN=79 2.51 cfs MSE 24-hr 3 1-Year A Rainfall=2.47"Avienda - Existing Printed 8/3/2018Prepared by LANDFORM Page 24HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 85S: 1S Runoff = 1.85 cfs @ 12.28 hrs, Volume= 0.154 af, Depth= 0.41" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MSE 24-hr 3 1-Year A Rainfall=2.47" Area (ac) CN Description * 4.530 69 Weighted 4.530 69 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 15.0 Direct Entry, Subcatchment 85S: 1S Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)2 1 0 MSE 24-hr 3 1-Year A Rainfall=2.47" Runoff Area=4.530 ac Runoff Volume=0.154 af Runoff Depth=0.41" Tc=15.0 min CN=69 1.85 cfs MSE 24-hr 3 1-Year A Rainfall=2.47"Avienda - Existing Printed 8/3/2018Prepared by LANDFORM Page 25HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 86S: 2S Runoff = 1.80 cfs @ 12.44 hrs, Volume= 0.197 af, Depth= 0.41" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MSE 24-hr 3 1-Year A Rainfall=2.47" Area (ac) CN Description * 5.800 69 Weighted 5.800 69 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 25.0 Direct Entry, Subcatchment 86S: 2S Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)2 1 0 MSE 24-hr 3 1-Year A Rainfall=2.47" Runoff Area=5.800 ac Runoff Volume=0.197 af Runoff Depth=0.41" Tc=25.0 min CN=69 1.80 cfs MSE 24-hr 3 1-Year A Rainfall=2.47"Avienda - Existing Printed 8/3/2018Prepared by LANDFORM Page 26HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 87S: M9 Runoff = 12.22 cfs @ 12.47 hrs, Volume= 1.220 af, Depth= 0.68" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MSE 24-hr 3 1-Year A Rainfall=2.47" Area (ac) CN Description * 21.638 76 Weighted 21.638 76 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 29.0 Direct Entry, Subcatchment 87S: M9 Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)13 12 11 10 9 8 7 6 5 4 3 2 1 0 MSE 24-hr 3 1-Year A Rainfall=2.47" Runoff Area=21.638 ac Runoff Volume=1.220 af Runoff Depth=0.68" Tc=29.0 min CN=76 12.22 cfs MSE 24-hr 3 1-Year A Rainfall=2.47"Avienda - Existing Printed 8/3/2018Prepared by LANDFORM Page 27HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Reach 8R: South Drainage [40] Hint: Not Described (Outflow=Inflow) Inflow Area = 48.462 ac, 0.00% Impervious, Inflow Depth = 0.57" for 1-Year A event Inflow = 24.83 cfs @ 12.30 hrs, Volume= 2.304 af Outflow = 24.83 cfs @ 12.30 hrs, Volume= 2.304 af, Atten= 0%, Lag= 0.0 min Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Reach 8R: South Drainage Inflow Outflow Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)26 24 22 20 18 16 14 12 10 8 6 4 2 0 Inflow Area=48.462 ac 24.83 cfs 24.83 cfs MSE 24-hr 3 1-Year A Rainfall=2.47"Avienda - Existing Printed 8/3/2018Prepared by LANDFORM Page 28HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Reach 9R: Wetland 4 Channel [40] Hint: Not Described (Outflow=Inflow) Inflow Area = 31.882 ac, 0.00% Impervious, Inflow Depth = 0.52" for 1-Year A event Inflow = 14.93 cfs @ 12.39 hrs, Volume= 1.380 af Outflow = 14.93 cfs @ 12.39 hrs, Volume= 1.380 af, Atten= 0%, Lag= 0.0 min Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Reach 9R: Wetland 4 Channel Inflow Outflow Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 Inflow Area=31.882 ac 14.93 cfs 14.93 cfs MSE 24-hr 3 1-Year A Rainfall=2.47"Avienda - Existing Printed 8/3/2018Prepared by LANDFORM Page 29HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Reach 72R: N68 [52] Hint: Inlet/Outlet conditions not evaluated Inflow Area = 4.190 ac, 56.32% Impervious, Inflow Depth = 1.98" for 1-Year A event Inflow = 12.90 cfs @ 12.15 hrs, Volume= 0.693 af Outflow = 12.90 cfs @ 12.15 hrs, Volume= 0.693 af, Atten= 0%, Lag= 0.1 min Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Max. Velocity= 7.07 fps, Min. Travel Time= 0.1 min Avg. Velocity = 1.98 fps, Avg. Travel Time= 0.5 min Peak Storage= 115 cf @ 12.15 hrs Average Depth at Peak Storage= 1.13' Bank-Full Depth= 2.00' Flow Area= 3.1 sf, Capacity= 21.17 cfs 24.0" Round Pipe n= 0.012 Length= 63.0' Slope= 0.0075 '/' Inlet Invert= 872.00', Outlet Invert= 871.53' Reach 72R: N68 Inflow Outflow Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 Inflow Area=4.190 ac Avg. Flow Depth=1.13' Max Vel=7.07 fps 24.0" Round Pipe n=0.012 L=63.0' S=0.0075 '/' Capacity=21.17 cfs 12.90 cfs 12.90 cfs MSE 24-hr 3 1-Year A Rainfall=2.47"Avienda - Existing Printed 8/3/2018Prepared by LANDFORM Page 30HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Stage-Area-Storage for Reach 72R: N68 Elevation (feet) End-Area (sq-ft) Storage (cubic-feet) 872.00 0.0 0 872.02 0.0 0 872.04 0.0 1 872.06 0.0 2 872.08 0.0 3 872.10 0.1 4 872.12 0.1 5 872.14 0.1 6 872.16 0.1 7 872.18 0.1 9 872.20 0.2 10 872.22 0.2 12 872.24 0.2 13 872.26 0.2 15 872.28 0.3 17 872.30 0.3 19 872.32 0.3 20 872.34 0.4 22 872.36 0.4 24 872.38 0.4 26 872.40 0.4 28 872.42 0.5 30 872.44 0.5 32 872.46 0.5 34 872.48 0.6 37 872.50 0.6 39 872.52 0.6 41 872.54 0.7 43 872.56 0.7 45 872.58 0.8 48 872.60 0.8 50 872.62 0.8 52 872.64 0.9 55 872.66 0.9 57 872.68 0.9 59 872.70 1.0 62 872.72 1.0 64 872.74 1.1 67 872.76 1.1 69 872.78 1.1 71 872.80 1.2 74 872.82 1.2 76 872.84 1.3 79 872.86 1.3 81 872.88 1.3 84 872.90 1.4 86 872.92 1.4 89 872.94 1.5 91 872.96 1.5 94 872.98 1.5 96 873.00 1.6 99 873.02 1.6 101 Elevation (feet) End-Area (sq-ft) Storage (cubic-feet) 873.04 1.7 104 873.06 1.7 107 873.08 1.7 109 873.10 1.8 112 873.12 1.8 114 873.14 1.8 117 873.16 1.9 119 873.18 1.9 122 873.20 2.0 124 873.22 2.0 126 873.24 2.0 129 873.26 2.1 131 873.28 2.1 134 873.30 2.2 136 873.32 2.2 139 873.34 2.2 141 873.36 2.3 143 873.38 2.3 146 873.40 2.3 148 873.42 2.4 150 873.44 2.4 153 873.46 2.5 155 873.48 2.5 157 873.50 2.5 159 873.52 2.6 161 873.54 2.6 164 873.56 2.6 166 873.58 2.7 168 873.60 2.7 170 873.62 2.7 172 873.64 2.8 174 873.66 2.8 176 873.68 2.8 177 873.70 2.8 179 873.72 2.9 181 873.74 2.9 183 873.76 2.9 184 873.78 3.0 186 873.80 3.0 188 873.82 3.0 189 873.84 3.0 191 873.86 3.0 192 873.88 3.1 193 873.90 3.1 194 873.92 3.1 195 873.94 3.1 196 873.96 3.1 197 873.98 3.1 198 874.00 3.1 198 MSE 24-hr 3 1-Year A Rainfall=2.47"Avienda - Existing Printed 8/3/2018Prepared by LANDFORM Page 31HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Pond 8P: Wetland 4 Inflow Area = 29.862 ac, 0.00% Impervious, Inflow Depth = 0.54" for 1-Year A event Inflow = 14.74 cfs @ 12.38 hrs, Volume= 1.352 af Outflow = 14.72 cfs @ 12.39 hrs, Volume= 1.351 af, Atten= 0%, Lag= 0.4 min Primary = 14.72 cfs @ 12.39 hrs, Volume= 1.351 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 884.53' @ 12.39 hrs Surf.Area= 2,065 sf Storage= 769 cf Plug-Flow detention time= 2.7 min calculated for 1.351 af (100% of inflow) Center-of-Mass det. time= 2.6 min ( 854.4 - 851.8 ) Volume Invert Avail.Storage Storage Description #1 884.00' 37,633 cf Custom Stage Data (Prismatic) Listed below (Recalc) Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 884.00 870 0 0 884.50 1,980 713 713 885.00 3,500 1,370 2,083 886.00 7,800 5,650 7,733 887.00 14,000 10,900 18,633 888.00 24,000 19,000 37,633 Device Routing Invert Outlet Devices #1 Primary 884.03'Asymmetrical Weir, C= 3.27 Offset (feet) 0.00 51.00 133.60 176.00 217.30 239.00 Elev. (feet) 889.78 886.05 884.03 885.84 889.00 889.78 Primary OutFlow Max=14.72 cfs @ 12.39 hrs HW=884.53' TW=0.00' (Dynamic Tailwater) 1=Asymmetrical Weir (Weir Controls 14.72 cfs @ 0.92 fps) MSE 24-hr 3 1-Year A Rainfall=2.47"Avienda - Existing Printed 8/3/2018Prepared by LANDFORM Page 32HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Pond 8P: Wetland 4 Inflow Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 Inflow Area=29.862 ac Peak Elev=884.53' Storage=769 cf 14.74 cfs 14.72 cfs MSE 24-hr 3 1-Year A Rainfall=2.47"Avienda - Existing Printed 8/3/2018Prepared by LANDFORM Page 33HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Stage-Area-Storage for Pond 8P: Wetland 4 Elevation (feet) Surface (sq-ft) Storage (cubic-feet) 884.00 870 0 884.10 1,092 98 884.20 1,314 218 884.30 1,536 361 884.40 1,758 526 884.50 1,980 713 884.60 2,284 926 884.70 2,588 1,169 884.80 2,892 1,443 884.90 3,196 1,748 885.00 3,500 2,083 885.10 3,930 2,454 885.20 4,360 2,869 885.30 4,790 3,326 885.40 5,220 3,826 885.50 5,650 4,370 885.60 6,080 4,957 885.70 6,510 5,586 885.80 6,940 6,258 885.90 7,370 6,974 886.00 7,800 7,733 886.10 8,420 8,544 886.20 9,040 9,417 886.30 9,660 10,351 886.40 10,280 11,348 886.50 10,900 12,408 886.60 11,520 13,529 886.70 12,140 14,712 886.80 12,760 15,956 886.90 13,380 17,263 887.00 14,000 18,633 887.10 15,000 20,083 887.20 16,000 21,633 887.30 17,000 23,282 887.40 18,000 25,032 887.50 19,000 26,883 887.60 20,000 28,833 887.70 21,000 30,883 887.80 22,000 33,032 887.90 23,000 35,282 888.00 24,000 37,633 888.10 24,000 37,633 888.20 24,000 37,633 888.30 24,000 37,633 888.40 24,000 37,633 888.50 24,000 37,633 888.60 24,000 37,633 888.70 24,000 37,633 888.80 24,000 37,633 888.90 24,000 37,633 889.00 24,000 37,633 889.10 24,000 37,633 Elevation (feet) Surface (sq-ft) Storage (cubic-feet) 889.20 24,000 37,633 889.30 24,000 37,633 889.40 24,000 37,633 889.50 24,000 37,633 889.60 24,000 37,633 889.70 24,000 37,633 MSE 24-hr 3 1-Year A Rainfall=2.47"Avienda - Existing Printed 8/3/2018Prepared by LANDFORM Page 34HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Pond 71P: Interlachen Inflow Area = 30.860 ac, 27.80% Impervious, Inflow Depth = 1.31" for 1-Year A event Inflow = 55.58 cfs @ 12.15 hrs, Volume= 3.381 af Outflow = 8.74 cfs @ 12.67 hrs, Volume= 3.371 af, Atten= 84%, Lag= 31.3 min Primary = 8.74 cfs @ 12.67 hrs, Volume= 3.371 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 871.46' @ 12.67 hrs Surf.Area= 55,168 sf Storage= 77,301 cf Plug-Flow detention time= 400.0 min calculated for 3.371 af (100% of inflow) Center-of-Mass det. time= 398.5 min ( 1,187.9 - 789.3 ) Volume Invert Avail.Storage Storage Description #1 870.00' 381,460 cf Custom Stage Data (Prismatic) Listed below (Recalc) Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 870.00 50,570 0 0 872.00 56,860 107,430 107,430 875.00 74,330 196,785 304,215 876.00 80,160 77,245 381,460 Device Routing Invert Outlet Devices #1 Primary 870.00'24.0" Round Culvert L= 33.0' RCP, square edge headwall, Ke= 0.500 Inlet / Outlet Invert= 870.00' / 869.67' S= 0.0100 '/' Cc= 0.900 n= 0.012, Flow Area= 3.14 sf #2 Device 1 866.61'24.0" Round Culvert L= 21.0' RCP, end-section conforming to fill, Ke= 0.500 Inlet / Outlet Invert= 866.50' / 866.61' S= -0.0052 '/' Cc= 0.900 n= 0.012, Flow Area= 3.14 sf Primary OutFlow Max=8.74 cfs @ 12.67 hrs HW=871.46' TW=869.82' (Dynamic Tailwater) 1=Culvert (Barrel Controls 8.74 cfs @ 4.95 fps) 2=Culvert (Passes 8.74 cfs of 18.29 cfs potential flow) MSE 24-hr 3 1-Year A Rainfall=2.47"Avienda - Existing Printed 8/3/2018Prepared by LANDFORM Page 35HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Pond 71P: Interlachen Inflow Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)60 55 50 45 40 35 30 25 20 15 10 5 0 Inflow Area=30.860 ac Peak Elev=871.46' Storage=77,301 cf 55.58 cfs 8.74 cfs MSE 24-hr 3 1-Year A Rainfall=2.47"Avienda - Existing Printed 8/3/2018Prepared by LANDFORM Page 36HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Stage-Area-Storage for Pond 71P: Interlachen Elevation (feet) Surface (sq-ft) Storage (cubic-feet) 870.00 50,570 0 870.10 50,885 5,073 870.20 51,199 10,177 870.30 51,513 15,313 870.40 51,828 20,480 870.50 52,143 25,678 870.60 52,457 30,908 870.70 52,772 36,170 870.80 53,086 41,462 870.90 53,400 46,787 871.00 53,715 52,143 871.10 54,030 57,530 871.20 54,344 62,948 871.30 54,658 68,399 871.40 54,973 73,880 871.50 55,288 79,393 871.60 55,602 84,938 871.70 55,917 90,514 871.80 56,231 96,121 871.90 56,545 101,760 872.00 56,860 107,430 872.10 57,442 113,145 872.20 58,025 118,918 872.30 58,607 124,750 872.40 59,189 130,640 872.50 59,772 136,588 872.60 60,354 142,594 872.70 60,936 148,659 872.80 61,519 154,781 872.90 62,101 160,962 873.00 62,683 167,202 873.10 63,266 173,499 873.20 63,848 179,855 873.30 64,430 186,269 873.40 65,013 192,741 873.50 65,595 199,271 873.60 66,177 205,860 873.70 66,760 212,507 873.80 67,342 219,212 873.90 67,924 225,975 874.00 68,507 232,797 874.10 69,089 239,676 874.20 69,671 246,614 874.30 70,254 253,611 874.40 70,836 260,665 874.50 71,418 267,778 874.60 72,001 274,949 874.70 72,583 282,178 874.80 73,165 289,465 874.90 73,748 296,811 875.00 74,330 304,215 875.10 74,913 311,677 Elevation (feet) Surface (sq-ft) Storage (cubic-feet) 875.20 75,496 319,198 875.30 76,079 326,776 875.40 76,662 334,413 875.50 77,245 342,109 875.60 77,828 349,862 875.70 78,411 357,674 875.80 78,994 365,545 875.90 79,577 373,473 876.00 80,160 381,460 MSE 24-hr 3 1-Year A Rainfall=2.47"Avienda - Existing Printed 8/3/2018Prepared by LANDFORM Page 37HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Pond 72P: South MNDOT M9 Wetland Inflow Area = 113.390 ac, 7.57% Impervious, Inflow Depth = 0.78" for 1-Year A event Inflow = 47.40 cfs @ 12.37 hrs, Volume= 7.388 af Outflow = 1.64 cfs @ 21.88 hrs, Volume= 7.123 af, Atten= 97%, Lag= 570.6 min Primary = 1.64 cfs @ 21.88 hrs, Volume= 7.123 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 870.19' @ 21.88 hrs Surf.Area= 443,944 sf Storage= 246,357 cf Plug-Flow detention time= 3,035.5 min calculated for 7.123 af (96% of inflow) Center-of-Mass det. time= 2,928.4 min ( 3,933.9 - 1,005.5 ) Volume Invert Avail.Storage Storage Description #1 869.50' 2,891,990 cf Custom Stage Data (Prismatic) Listed below (Recalc) Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 869.50 214,970 0 0 870.00 433,070 162,010 162,010 871.00 489,600 461,335 623,345 872.00 532,650 511,125 1,134,470 875.00 639,030 1,757,520 2,891,990 Device Routing Invert Outlet Devices #1 Primary 869.00'18.0" Round Culvert L= 276.0' RCP, square edge headwall, Ke= 0.500 Inlet / Outlet Invert= 869.00' / 866.93' S= 0.0075 '/' Cc= 0.900 n= 0.013 Concrete pipe, straight & clean, Flow Area= 1.77 sf #2 Device 1 869.50'12.0" Vert. Orifice/Grate C= 0.600 #3 Device 2 869.36'18.0" Round Culvert L= 172.0' RCP, end-section conforming to fill, Ke= 0.500 Inlet / Outlet Invert= 868.50' / 869.36' S= -0.0050 '/' Cc= 0.900 n= 0.013 Concrete pipe, straight & clean, Flow Area= 1.77 sf Primary OutFlow Max=1.64 cfs @ 21.88 hrs HW=870.19' (Free Discharge) 1=Culvert (Passes 1.64 cfs of 5.58 cfs potential flow) 2=Orifice/Grate (Orifice Controls 1.64 cfs @ 2.83 fps) 3=Culvert (Passes 1.64 cfs of 3.13 cfs potential flow) MSE 24-hr 3 1-Year A Rainfall=2.47"Avienda - Existing Printed 8/3/2018Prepared by LANDFORM Page 38HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Pond 72P: South MNDOT M9 Wetland Inflow Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)50 45 40 35 30 25 20 15 10 5 0 Inflow Area=113.390 ac Peak Elev=870.19' Storage=246,357 cf 47.40 cfs 1.64 cfs MSE 24-hr 3 1-Year A Rainfall=2.47"Avienda - Existing Printed 8/3/2018Prepared by LANDFORM Page 39HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Stage-Area-Storage for Pond 72P: South MNDOT M9 Wetland Elevation (feet) Surface (sq-ft) Storage (cubic-feet) 869.50 214,970 0 869.60 258,590 23,678 869.70 302,210 51,718 869.80 345,830 84,120 869.90 389,450 120,884 870.00 433,070 162,010 870.10 438,723 205,600 870.20 444,376 249,755 870.30 450,029 294,475 870.40 455,682 339,760 870.50 461,335 385,611 870.60 466,988 432,027 870.70 472,641 479,009 870.80 478,294 526,556 870.90 483,947 574,668 871.00 489,600 623,345 871.10 493,905 672,520 871.20 498,210 722,126 871.30 502,515 772,162 871.40 506,820 822,629 871.50 511,125 873,526 871.60 515,430 924,854 871.70 519,735 976,612 871.80 524,040 1,028,801 871.90 528,345 1,081,420 872.00 532,650 1,134,470 872.10 536,196 1,187,912 872.20 539,742 1,241,709 872.30 543,288 1,295,861 872.40 546,834 1,350,367 872.50 550,380 1,405,228 872.60 553,926 1,460,443 872.70 557,472 1,516,013 872.80 561,018 1,571,937 872.90 564,564 1,628,216 873.00 568,110 1,684,850 873.10 571,656 1,741,838 873.20 575,202 1,799,181 873.30 578,748 1,856,879 873.40 582,294 1,914,931 873.50 585,840 1,973,338 873.60 589,386 2,032,099 873.70 592,932 2,091,215 873.80 596,478 2,150,685 873.90 600,024 2,210,510 874.00 603,570 2,270,690 874.10 607,116 2,331,224 874.20 610,662 2,392,113 874.30 614,208 2,453,357 874.40 617,754 2,514,955 874.50 621,300 2,576,908 874.60 624,846 2,639,215 Elevation (feet) Surface (sq-ft) Storage (cubic-feet) 874.70 628,392 2,701,877 874.80 631,938 2,764,893 874.90 635,484 2,828,264 875.00 639,030 2,891,990 MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32"Avienda - Existing Printed 8/3/2018Prepared by LANDFORM Page 40HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Time span=0.00-360.00 hrs, dt=0.01 hrs, 36001 points Runoff by SCS TR-20 method, UH=SCS, Weighted-Q Reach routing by Dyn-Stor-Ind method - Pond routing by Dyn-Stor-Ind method Runoff Area=1,300,770 sf 0.00% Impervious Runoff Depth=0.11"Subcatchment 8S: South - Central to Flow Length=1,321' Tc=24.5 min CN=WQ Runoff=2.37 cfs 0.282 af Runoff Area=140,359 sf 0.00% Impervious Runoff Depth=0.00"Subcatchment 9.1S: East Woods Flow Length=530' Tc=15.2 min CN=55 Runoff=0.00 cfs 0.000 af Runoff Area=88,007 sf 0.00% Impervious Runoff Depth=0.02"Subcatchment 9.2S: Northeast Woods Flow Length=623' Tc=19.5 min CN=WQ Runoff=0.04 cfs 0.004 af Runoff Area=258,057 sf 0.00% Impervious Runoff Depth=0.18"Subcatchment 9.3S: South Flow Length=550' Tc=10.3 min CN=WQ Runoff=1.20 cfs 0.091 af Runoff Area=323,827 sf 0.00% Impervious Runoff Depth=0.18"Subcatchment 9.4S: Southeast Flow Length=912' Tc=16.5 min CN=WQ Runoff=1.14 cfs 0.111 af Runoff Area=2.080 ac 0.00% Impervious Runoff Depth=0.31"Subcatchment 71-1S: Interlacn Subcatch 1 Tc=7.0 min CN=84 Runoff=1.07 cfs 0.054 af Runoff Area=1.160 ac 100.00% Impervious Runoff Depth=1.32"Subcatchment 71-2S: Interlacn Subcatch 2 Tc=7.0 min CN=100 Runoff=2.21 cfs 0.128 af Runoff Area=0.810 ac 0.00% Impervious Runoff Depth=0.78"Subcatchment 72S: 6_Temp Tc=9.0 min CN=94 Runoff=1.02 cfs 0.052 af Runoff Area=2.360 ac 100.00% Impervious Runoff Depth=1.10"Subcatchment 73S: N68 Tc=7.0 min CN=98 Runoff=4.23 cfs 0.217 af Runoff Area=1.020 ac 0.00% Impervious Runoff Depth=0.55"Subcatchment 74S: 5_Temp Tc=9.0 min CN=90 Runoff=0.91 cfs 0.046 af Runoff Area=3.010 ac 100.00% Impervious Runoff Depth=1.10"Subcatchment 75S: 3225 Tc=7.0 min CN=98 Runoff=5.40 cfs 0.277 af Runoff Area=8.310 ac 0.00% Impervious Runoff Depth=0.20"Subcatchment 76S: 3236 Tc=14.0 min CN=80 Runoff=1.68 cfs 0.140 af Runoff Area=0.950 ac 0.00% Impervious Runoff Depth=0.28"Subcatchment 77S: 3238 Tc=7.0 min CN=83 Runoff=0.43 cfs 0.022 af Runoff Area=0.630 ac 0.00% Impervious Runoff Depth=0.60"Subcatchment 78S: 3243 Tc=7.0 min CN=91 Runoff=0.67 cfs 0.031 af Runoff Area=2.050 ac 100.00% Impervious Runoff Depth=1.10"Subcatchment 79S: 3245 Tc=7.0 min CN=98 Runoff=3.68 cfs 0.188 af Runoff Area=0.350 ac 0.00% Impervious Runoff Depth=0.55"Subcatchment 80S: 3250 Tc=7.0 min CN=90 Runoff=0.34 cfs 0.016 af MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32"Avienda - Existing Printed 8/3/2018Prepared by LANDFORM Page 41HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Runoff Area=5.950 ac 0.00% Impervious Runoff Depth=0.12"Subcatchment 81S: 3343 Tc=19.0 min CN=76 Runoff=0.45 cfs 0.061 af Runoff Area=1.480 ac 0.00% Impervious Runoff Depth=0.16"Subcatchment 82S: 3345 Tc=7.0 min CN=78 Runoff=0.28 cfs 0.020 af Runoff Area=0.700 ac 0.00% Impervious Runoff Depth=0.41"Subcatchment 83S: 3348 Tc=7.0 min CN=87 Runoff=0.51 cfs 0.024 af Runoff Area=2.100 ac 0.00% Impervious Runoff Depth=0.18"Subcatchment 84S: SE12 Tc=11.0 min CN=79 Runoff=0.40 cfs 0.032 af Runoff Area=4.530 ac 0.00% Impervious Runoff Depth=0.04"Subcatchment 85S: 1S Tc=15.0 min CN=69 Runoff=0.04 cfs 0.014 af Runoff Area=5.800 ac 0.00% Impervious Runoff Depth=0.04"Subcatchment 86S: 2S Tc=25.0 min CN=69 Runoff=0.05 cfs 0.017 af Runoff Area=21.638 ac 0.00% Impervious Runoff Depth=0.12"Subcatchment 87S: M9 Tc=29.0 min CN=76 Runoff=1.37 cfs 0.222 af Inflow=3.95 cfs 0.487 afReach 8R: South Drainage Outflow=3.95 cfs 0.487 af Inflow=2.39 cfs 0.286 afReach 9R: Wetland 4 Channel Outflow=2.39 cfs 0.286 af Avg. Flow Depth=0.73' Max Vel=5.82 fps Inflow=6.08 cfs 0.316 afReach 72R: N68 24.0" Round Pipe n=0.012 L=63.0' S=0.0075 '/' Capacity=21.17 cfs Outflow=6.08 cfs 0.316 af Peak Elev=884.27' Storage=315 cf Inflow=2.37 cfs 0.282 afPond 8P: Wetland 4 Outflow=2.36 cfs 0.282 af Peak Elev=870.62' Storage=31,965 cf Inflow=21.43 cfs 1.277 afPond 71P: Interlachen Outflow=2.05 cfs 1.267 af Peak Elev=869.76' Storage=69,629 cf Inflow=7.08 cfs 2.039 afPond 72P: South MNDOT M9 Wetland Outflow=0.28 cfs 1.818 af Total Runoff Area = 113.390 ac Runoff Volume = 2.049 af Average Runoff Depth = 0.22" 92.43% Pervious = 104.810 ac 7.57% Impervious = 8.580 ac MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32"Avienda - Existing Printed 8/3/2018Prepared by LANDFORM Page 42HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 8S: South - Central to Wetland 4 Runoff = 2.37 cfs @ 12.44 hrs, Volume= 0.282 af, Depth= 0.11" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32" Area (sf) CN Description * 15,505 79 Wetland 5, Pasture/grassland/range, Poor, HSG B 21,030 55 Woods, Good, HSG B 185,110 79 Pasture/grassland/range, Poor, HSG B 460,890 55 Woods, Good, HSG B 618,235 79 Pasture/grassland/range, Poor, HSG B 1,300,770 Weighted Average 1,300,770 70 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 7.8 100 0.0300 0.21 Sheet Flow, Range n= 0.130 P2= 2.87" 15.2 1,028 0.0260 1.13 Shallow Concentrated Flow, Short Grass Pasture Kv= 7.0 fps 1.5 193 0.0200 2.12 Shallow Concentrated Flow, Wetland Grassed Waterway Kv= 15.0 fps 24.5 1,321 Total Subcatchment 8S: South - Central to Wetland 4 Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)2 1 0 MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32" Runoff Area=1,300,770 sf Runoff Volume=0.282 af Runoff Depth=0.11" Flow Length=1,321' Tc=24.5 min CN=WQ 2.37 cfs MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32"Avienda - Existing Printed 8/3/2018Prepared by LANDFORM Page 43HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 9.1S: East Woods [45] Hint: Runoff=Zero Runoff = 0.00 cfs @ 0.00 hrs, Volume= 0.000 af, Depth= 0.00" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32" Area (sf) CN Description 140,359 55 Woods, Good, HSG B 140,359 55 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 11.1 75 0.0670 0.11 Sheet Flow, Woods: Light underbrush n= 0.400 P2= 2.87" 4.1 455 0.1380 1.86 Shallow Concentrated Flow, Woodland Kv= 5.0 fps 15.2 530 Total Subcatchment 9.1S: East Woods Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)1 0 MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32" Runoff Area=140,359 sf Runoff Volume=0.000 af Runoff Depth=0.00" Flow Length=530' Tc=15.2 min CN=55 0.00 cfs MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32"Avienda - Existing Printed 8/3/2018Prepared by LANDFORM Page 44HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 9.2S: Northeast Woods Runoff = 0.04 cfs @ 12.37 hrs, Volume= 0.004 af, Depth= 0.02" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32" Area (sf) CN Description 76,845 55 Woods, Good, HSG B 11,162 79 Pasture/grassland/range, Poor, HSG B 88,007 Weighted Average 88,007 58 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 14.2 100 0.0650 0.12 Sheet Flow, Woods: Light underbrush n= 0.400 P2= 2.87" 5.3 523 0.1080 1.64 Shallow Concentrated Flow, Woodland Kv= 5.0 fps 19.5 623 Total Subcatchment 9.2S: Northeast Woods Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.04 0.038 0.036 0.034 0.032 0.03 0.028 0.026 0.024 0.022 0.02 0.018 0.016 0.014 0.012 0.01 0.008 0.006 0.004 0.002 0 MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32" Runoff Area=88,007 sf Runoff Volume=0.004 af Runoff Depth=0.02" Flow Length=623' Tc=19.5 min CN=WQ 0.04 cfs MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32"Avienda - Existing Printed 8/3/2018Prepared by LANDFORM Page 45HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 9.3S: South Runoff = 1.20 cfs @ 12.21 hrs, Volume= 0.091 af, Depth= 0.18" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32" Area (sf) CN Description 3,690 55 Woods, Good, HSG B 246,824 79 Pasture/grassland/range, Poor, HSG B 7,543 86 Pasture/grassland/range, Poor, HSG C 258,057 Weighted Average 258,057 79 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 6.5 90 0.0390 0.23 Sheet Flow, Range n= 0.130 P2= 2.87" 3.8 460 0.0850 2.04 Shallow Concentrated Flow, Short Grass Pasture Kv= 7.0 fps 10.3 550 Total Subcatchment 9.3S: South Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)1 0 MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32" Runoff Area=258,057 sf Runoff Volume=0.091 af Runoff Depth=0.18" Flow Length=550' Tc=10.3 min CN=WQ 1.20 cfs MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32"Avienda - Existing Printed 8/3/2018Prepared by LANDFORM Page 46HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 9.4S: Southeast Runoff = 1.14 cfs @ 12.31 hrs, Volume= 0.111 af, Depth= 0.18" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32" Area (sf) CN Description 4,560 55 Woods, Good, HSG B 2,090 58 Meadow, non-grazed, HSG B 313,772 79 Pasture/grassland/range, Poor, HSG B 3,405 86 Pasture/grassland/range, Poor, HSG C 323,827 Weighted Average 323,827 79 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 6.0 55 0.0180 0.15 Sheet Flow, Range n= 0.130 P2= 2.87" 10.5 857 0.0380 1.36 Shallow Concentrated Flow, Short Grass Pasture Kv= 7.0 fps 16.5 912 Total Subcatchment 9.4S: Southeast Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)1 0 MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32" Runoff Area=323,827 sf Runoff Volume=0.111 af Runoff Depth=0.18" Flow Length=912' Tc=16.5 min CN=WQ 1.14 cfs MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32"Avienda - Existing Printed 8/3/2018Prepared by LANDFORM Page 47HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 71-1S: Interlacn Subcatch 1 Runoff = 1.07 cfs @ 12.15 hrs, Volume= 0.054 af, Depth= 0.31" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32" Area (ac) CN Description * 2.080 84 Weoghted 2.080 84 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 7.0 Direct Entry, Subcatchment 71-1S: Interlacn Subcatch 1 Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)1 0 MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32" Runoff Area=2.080 ac Runoff Volume=0.054 af Runoff Depth=0.31" Tc=7.0 min CN=84 1.07 cfs MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32"Avienda - Existing Printed 8/3/2018Prepared by LANDFORM Page 48HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 71-2S: Interlacn Subcatch 2 Runoff = 2.21 cfs @ 12.14 hrs, Volume= 0.128 af, Depth= 1.32" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32" Area (ac) CN Description * 1.160 100 1.160 100 100.00% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 7.0 Direct Entry, Subcatchment 71-2S: Interlacn Subcatch 2 Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)2 1 0 MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32" Runoff Area=1.160 ac Runoff Volume=0.128 af Runoff Depth=1.32" Tc=7.0 min CN=100 2.21 cfs MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32"Avienda - Existing Printed 8/3/2018Prepared by LANDFORM Page 49HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 72S: 6_Temp Runoff = 1.02 cfs @ 12.17 hrs, Volume= 0.052 af, Depth= 0.78" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32" Area (ac) CN Description * 0.810 94 Weighted 0.810 94 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 9.0 Direct Entry, Subcatchment 72S: 6_Temp Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)1 0 MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32" Runoff Area=0.810 ac Runoff Volume=0.052 af Runoff Depth=0.78" Tc=9.0 min CN=94 1.02 cfs MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32"Avienda - Existing Printed 8/3/2018Prepared by LANDFORM Page 50HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 73S: N68 Runoff = 4.23 cfs @ 12.14 hrs, Volume= 0.217 af, Depth= 1.10" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32" Area (ac) CN Description * 2.360 98 Weighted 2.360 98 100.00% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 7.0 Direct Entry, Subcatchment 73S: N68 Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)4 3 2 1 0 MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32" Runoff Area=2.360 ac Runoff Volume=0.217 af Runoff Depth=1.10" Tc=7.0 min CN=98 4.23 cfs MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32"Avienda - Existing Printed 8/3/2018Prepared by LANDFORM Page 51HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 74S: 5_Temp Runoff = 0.91 cfs @ 12.17 hrs, Volume= 0.046 af, Depth= 0.55" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32" Area (ac) CN Description * 1.020 90 1.020 90 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 9.0 Direct Entry, Subcatchment 74S: 5_Temp Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)1 0 MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32" Runoff Area=1.020 ac Runoff Volume=0.046 af Runoff Depth=0.55" Tc=9.0 min CN=90 0.91 cfs MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32"Avienda - Existing Printed 8/3/2018Prepared by LANDFORM Page 52HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 75S: 3225 Runoff = 5.40 cfs @ 12.14 hrs, Volume= 0.277 af, Depth= 1.10" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32" Area (ac) CN Description * 3.010 98 Weighted 3.010 98 100.00% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 7.0 Direct Entry, Subcatchment 75S: 3225 Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)6 5 4 3 2 1 0 MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32" Runoff Area=3.010 ac Runoff Volume=0.277 af Runoff Depth=1.10" Tc=7.0 min CN=98 5.40 cfs MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32"Avienda - Existing Printed 8/3/2018Prepared by LANDFORM Page 53HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 76S: 3236 Runoff = 1.68 cfs @ 12.27 hrs, Volume= 0.140 af, Depth= 0.20" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32" Area (ac) CN Description * 8.310 80 Weighted 8.310 80 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 14.0 Direct Entry, Subcatchment 76S: 3236 Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)1 0 MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32" Runoff Area=8.310 ac Runoff Volume=0.140 af Runoff Depth=0.20" Tc=14.0 min CN=80 1.68 cfs MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32"Avienda - Existing Printed 8/3/2018Prepared by LANDFORM Page 54HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 77S: 3238 Runoff = 0.43 cfs @ 12.15 hrs, Volume= 0.022 af, Depth= 0.28" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32" Area (ac) CN Description * 0.950 83 Weighted 0.950 83 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 7.0 Direct Entry, Subcatchment 77S: 3238 Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.48 0.46 0.44 0.42 0.4 0.38 0.36 0.34 0.32 0.3 0.28 0.26 0.24 0.22 0.2 0.18 0.16 0.14 0.12 0.1 0.08 0.06 0.04 0.02 0 MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32" Runoff Area=0.950 ac Runoff Volume=0.022 af Runoff Depth=0.28" Tc=7.0 min CN=83 0.43 cfs MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32"Avienda - Existing Printed 8/3/2018Prepared by LANDFORM Page 55HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 78S: 3243 Runoff = 0.67 cfs @ 12.15 hrs, Volume= 0.031 af, Depth= 0.60" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32" Area (ac) CN Description * 0.630 91 Weighted 0.630 91 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 7.0 Direct Entry, Subcatchment 78S: 3243 Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.75 0.7 0.65 0.6 0.55 0.5 0.45 0.4 0.35 0.3 0.25 0.2 0.15 0.1 0.05 0 MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32" Runoff Area=0.630 ac Runoff Volume=0.031 af Runoff Depth=0.60" Tc=7.0 min CN=91 0.67 cfs MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32"Avienda - Existing Printed 8/3/2018Prepared by LANDFORM Page 56HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 79S: 3245 Runoff = 3.68 cfs @ 12.14 hrs, Volume= 0.188 af, Depth= 1.10" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32" Area (ac) CN Description * 2.050 98 Weighted 2.050 98 100.00% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 7.0 Direct Entry, Subcatchment 79S: 3245 Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)4 3 2 1 0 MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32" Runoff Area=2.050 ac Runoff Volume=0.188 af Runoff Depth=1.10" Tc=7.0 min CN=98 3.68 cfs MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32"Avienda - Existing Printed 8/3/2018Prepared by LANDFORM Page 57HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 80S: 3250 Runoff = 0.34 cfs @ 12.15 hrs, Volume= 0.016 af, Depth= 0.55" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32" Area (ac) CN Description * 0.350 90 Weighted 0.350 90 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 7.0 Direct Entry, Subcatchment 80S: 3250 Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.38 0.36 0.34 0.32 0.3 0.28 0.26 0.24 0.22 0.2 0.18 0.16 0.14 0.12 0.1 0.08 0.06 0.04 0.02 0 MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32" Runoff Area=0.350 ac Runoff Volume=0.016 af Runoff Depth=0.55" Tc=7.0 min CN=90 0.34 cfs MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32"Avienda - Existing Printed 8/3/2018Prepared by LANDFORM Page 58HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 81S: 3343 Runoff = 0.45 cfs @ 12.40 hrs, Volume= 0.061 af, Depth= 0.12" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32" Area (ac) CN Description * 5.950 76 Weighted 5.950 76 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 19.0 Direct Entry, Subcatchment 81S: 3343 Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.5 0.48 0.46 0.44 0.42 0.4 0.38 0.36 0.34 0.32 0.3 0.28 0.26 0.24 0.22 0.2 0.18 0.16 0.14 0.12 0.1 0.08 0.06 0.04 0.02 0 MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32" Runoff Area=5.950 ac Runoff Volume=0.061 af Runoff Depth=0.12" Tc=19.0 min CN=76 0.45 cfs MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32"Avienda - Existing Printed 8/3/2018Prepared by LANDFORM Page 59HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 82S: 3345 Runoff = 0.28 cfs @ 12.17 hrs, Volume= 0.020 af, Depth= 0.16" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32" Area (ac) CN Description * 1.480 78 Weighted 1.480 78 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 7.0 Direct Entry, Subcatchment 82S: 3345 Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.3 0.28 0.26 0.24 0.22 0.2 0.18 0.16 0.14 0.12 0.1 0.08 0.06 0.04 0.02 0 MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32" Runoff Area=1.480 ac Runoff Volume=0.020 af Runoff Depth=0.16" Tc=7.0 min CN=78 0.28 cfs MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32"Avienda - Existing Printed 8/3/2018Prepared by LANDFORM Page 60HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 83S: 3348 Runoff = 0.51 cfs @ 12.15 hrs, Volume= 0.024 af, Depth= 0.41" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32" Area (ac) CN Description * 0.700 87 Weighted 0.700 87 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 7.0 Direct Entry, Subcatchment 83S: 3348 Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.55 0.5 0.45 0.4 0.35 0.3 0.25 0.2 0.15 0.1 0.05 0 MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32" Runoff Area=0.700 ac Runoff Volume=0.024 af Runoff Depth=0.41" Tc=7.0 min CN=87 0.51 cfs MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32"Avienda - Existing Printed 8/3/2018Prepared by LANDFORM Page 61HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 84S: SE12 Runoff = 0.40 cfs @ 12.22 hrs, Volume= 0.032 af, Depth= 0.18" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32" Area (ac) CN Description * 2.100 79 Weighted 2.100 79 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 11.0 Direct Entry, Subcatchment 84S: SE12 Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.44 0.42 0.4 0.38 0.36 0.34 0.32 0.3 0.28 0.26 0.24 0.22 0.2 0.18 0.16 0.14 0.12 0.1 0.08 0.06 0.04 0.02 0 MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32" Runoff Area=2.100 ac Runoff Volume=0.032 af Runoff Depth=0.18" Tc=11.0 min CN=79 0.40 cfs MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32"Avienda - Existing Printed 8/3/2018Prepared by LANDFORM Page 62HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 85S: 1S Runoff = 0.04 cfs @ 13.15 hrs, Volume= 0.014 af, Depth= 0.04" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32" Area (ac) CN Description * 4.530 69 Weighted 4.530 69 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 15.0 Direct Entry, Subcatchment 85S: 1S Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.042 0.04 0.038 0.036 0.034 0.032 0.03 0.028 0.026 0.024 0.022 0.02 0.018 0.016 0.014 0.012 0.01 0.008 0.006 0.004 0.002 0 MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32" Runoff Area=4.530 ac Runoff Volume=0.014 af Runoff Depth=0.04" Tc=15.0 min CN=69 0.04 cfs MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32"Avienda - Existing Printed 8/3/2018Prepared by LANDFORM Page 63HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 86S: 2S Runoff = 0.05 cfs @ 13.31 hrs, Volume= 0.017 af, Depth= 0.04" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32" Area (ac) CN Description * 5.800 69 Weighted 5.800 69 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 25.0 Direct Entry, Subcatchment 86S: 2S Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.05 0.045 0.04 0.035 0.03 0.025 0.02 0.015 0.01 0.005 0 MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32" Runoff Area=5.800 ac Runoff Volume=0.017 af Runoff Depth=0.04" Tc=25.0 min CN=69 0.05 cfs MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32"Avienda - Existing Printed 8/3/2018Prepared by LANDFORM Page 64HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 87S: M9 Runoff = 1.37 cfs @ 12.59 hrs, Volume= 0.222 af, Depth= 0.12" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32" Area (ac) CN Description * 21.638 76 Weighted 21.638 76 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 29.0 Direct Entry, Subcatchment 87S: M9 Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)1 0 MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32" Runoff Area=21.638 ac Runoff Volume=0.222 af Runoff Depth=0.12" Tc=29.0 min CN=76 1.37 cfs MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32"Avienda - Existing Printed 8/3/2018Prepared by LANDFORM Page 65HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Reach 8R: South Drainage [40] Hint: Not Described (Outflow=Inflow) Inflow Area = 48.462 ac, 0.00% Impervious, Inflow Depth = 0.12" for 1.1 Inch Equiv. event Inflow = 3.95 cfs @ 12.40 hrs, Volume= 0.487 af Outflow = 3.95 cfs @ 12.40 hrs, Volume= 0.487 af, Atten= 0%, Lag= 0.0 min Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Reach 8R: South Drainage Inflow Outflow Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)4 3 2 1 0 Inflow Area=48.462 ac 3.95 cfs 3.95 cfs MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32"Avienda - Existing Printed 8/3/2018Prepared by LANDFORM Page 66HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Reach 9R: Wetland 4 Channel [40] Hint: Not Described (Outflow=Inflow) Inflow Area = 31.882 ac, 0.00% Impervious, Inflow Depth = 0.11" for 1.1 Inch Equiv. event Inflow = 2.39 cfs @ 12.46 hrs, Volume= 0.286 af Outflow = 2.39 cfs @ 12.46 hrs, Volume= 0.286 af, Atten= 0%, Lag= 0.0 min Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Reach 9R: Wetland 4 Channel Inflow Outflow Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)2 1 0 Inflow Area=31.882 ac 2.39 cfs 2.39 cfs MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32"Avienda - Existing Printed 8/3/2018Prepared by LANDFORM Page 67HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Reach 72R: N68 [52] Hint: Inlet/Outlet conditions not evaluated Inflow Area = 4.190 ac, 56.32% Impervious, Inflow Depth = 0.90" for 1.1 Inch Equiv. event Inflow = 6.08 cfs @ 12.15 hrs, Volume= 0.316 af Outflow = 6.08 cfs @ 12.15 hrs, Volume= 0.316 af, Atten= 0%, Lag= 0.1 min Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Max. Velocity= 5.82 fps, Min. Travel Time= 0.2 min Avg. Velocity = 1.61 fps, Avg. Travel Time= 0.7 min Peak Storage= 66 cf @ 12.15 hrs Average Depth at Peak Storage= 0.73' Bank-Full Depth= 2.00' Flow Area= 3.1 sf, Capacity= 21.17 cfs 24.0" Round Pipe n= 0.012 Length= 63.0' Slope= 0.0075 '/' Inlet Invert= 872.00', Outlet Invert= 871.53' Reach 72R: N68 Inflow Outflow Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)6 5 4 3 2 1 0 Inflow Area=4.190 ac Avg. Flow Depth=0.73' Max Vel=5.82 fps 24.0" Round Pipe n=0.012 L=63.0' S=0.0075 '/' Capacity=21.17 cfs 6.08 cfs 6.08 cfs MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32"Avienda - Existing Printed 8/3/2018Prepared by LANDFORM Page 68HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Stage-Area-Storage for Reach 72R: N68 Elevation (feet) End-Area (sq-ft) Storage (cubic-feet) 872.00 0.0 0 872.02 0.0 0 872.04 0.0 1 872.06 0.0 2 872.08 0.0 3 872.10 0.1 4 872.12 0.1 5 872.14 0.1 6 872.16 0.1 7 872.18 0.1 9 872.20 0.2 10 872.22 0.2 12 872.24 0.2 13 872.26 0.2 15 872.28 0.3 17 872.30 0.3 19 872.32 0.3 20 872.34 0.4 22 872.36 0.4 24 872.38 0.4 26 872.40 0.4 28 872.42 0.5 30 872.44 0.5 32 872.46 0.5 34 872.48 0.6 37 872.50 0.6 39 872.52 0.6 41 872.54 0.7 43 872.56 0.7 45 872.58 0.8 48 872.60 0.8 50 872.62 0.8 52 872.64 0.9 55 872.66 0.9 57 872.68 0.9 59 872.70 1.0 62 872.72 1.0 64 872.74 1.1 67 872.76 1.1 69 872.78 1.1 71 872.80 1.2 74 872.82 1.2 76 872.84 1.3 79 872.86 1.3 81 872.88 1.3 84 872.90 1.4 86 872.92 1.4 89 872.94 1.5 91 872.96 1.5 94 872.98 1.5 96 873.00 1.6 99 873.02 1.6 101 Elevation (feet) End-Area (sq-ft) Storage (cubic-feet) 873.04 1.7 104 873.06 1.7 107 873.08 1.7 109 873.10 1.8 112 873.12 1.8 114 873.14 1.8 117 873.16 1.9 119 873.18 1.9 122 873.20 2.0 124 873.22 2.0 126 873.24 2.0 129 873.26 2.1 131 873.28 2.1 134 873.30 2.2 136 873.32 2.2 139 873.34 2.2 141 873.36 2.3 143 873.38 2.3 146 873.40 2.3 148 873.42 2.4 150 873.44 2.4 153 873.46 2.5 155 873.48 2.5 157 873.50 2.5 159 873.52 2.6 161 873.54 2.6 164 873.56 2.6 166 873.58 2.7 168 873.60 2.7 170 873.62 2.7 172 873.64 2.8 174 873.66 2.8 176 873.68 2.8 177 873.70 2.8 179 873.72 2.9 181 873.74 2.9 183 873.76 2.9 184 873.78 3.0 186 873.80 3.0 188 873.82 3.0 189 873.84 3.0 191 873.86 3.0 192 873.88 3.1 193 873.90 3.1 194 873.92 3.1 195 873.94 3.1 196 873.96 3.1 197 873.98 3.1 198 874.00 3.1 198 MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32"Avienda - Existing Printed 8/3/2018Prepared by LANDFORM Page 69HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Pond 8P: Wetland 4 Inflow Area = 29.862 ac, 0.00% Impervious, Inflow Depth = 0.11" for 1.1 Inch Equiv. event Inflow = 2.37 cfs @ 12.44 hrs, Volume= 0.282 af Outflow = 2.36 cfs @ 12.47 hrs, Volume= 0.282 af, Atten= 0%, Lag= 1.3 min Primary = 2.36 cfs @ 12.47 hrs, Volume= 0.282 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 884.27' @ 12.47 hrs Surf.Area= 1,468 sf Storage= 315 cf Plug-Flow detention time= 7.8 min calculated for 0.282 af (100% of inflow) Center-of-Mass det. time= 6.8 min ( 893.5 - 886.7 ) Volume Invert Avail.Storage Storage Description #1 884.00' 37,633 cf Custom Stage Data (Prismatic) Listed below (Recalc) Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 884.00 870 0 0 884.50 1,980 713 713 885.00 3,500 1,370 2,083 886.00 7,800 5,650 7,733 887.00 14,000 10,900 18,633 888.00 24,000 19,000 37,633 Device Routing Invert Outlet Devices #1 Primary 884.03'Asymmetrical Weir, C= 3.27 Offset (feet) 0.00 51.00 133.60 176.00 217.30 239.00 Elev. (feet) 889.78 886.05 884.03 885.84 889.00 889.78 Primary OutFlow Max=2.36 cfs @ 12.47 hrs HW=884.27' TW=0.00' (Dynamic Tailwater) 1=Asymmetrical Weir (Weir Controls 2.36 cfs @ 0.64 fps) MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32"Avienda - Existing Printed 8/3/2018Prepared by LANDFORM Page 70HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Pond 8P: Wetland 4 Inflow Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)2 1 0 Inflow Area=29.862 ac Peak Elev=884.27' Storage=315 cf 2.37 cfs 2.36 cfs MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32"Avienda - Existing Printed 8/3/2018Prepared by LANDFORM Page 71HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Stage-Area-Storage for Pond 8P: Wetland 4 Elevation (feet) Surface (sq-ft) Storage (cubic-feet) 884.00 870 0 884.10 1,092 98 884.20 1,314 218 884.30 1,536 361 884.40 1,758 526 884.50 1,980 713 884.60 2,284 926 884.70 2,588 1,169 884.80 2,892 1,443 884.90 3,196 1,748 885.00 3,500 2,083 885.10 3,930 2,454 885.20 4,360 2,869 885.30 4,790 3,326 885.40 5,220 3,826 885.50 5,650 4,370 885.60 6,080 4,957 885.70 6,510 5,586 885.80 6,940 6,258 885.90 7,370 6,974 886.00 7,800 7,733 886.10 8,420 8,544 886.20 9,040 9,417 886.30 9,660 10,351 886.40 10,280 11,348 886.50 10,900 12,408 886.60 11,520 13,529 886.70 12,140 14,712 886.80 12,760 15,956 886.90 13,380 17,263 887.00 14,000 18,633 887.10 15,000 20,083 887.20 16,000 21,633 887.30 17,000 23,282 887.40 18,000 25,032 887.50 19,000 26,883 887.60 20,000 28,833 887.70 21,000 30,883 887.80 22,000 33,032 887.90 23,000 35,282 888.00 24,000 37,633 888.10 24,000 37,633 888.20 24,000 37,633 888.30 24,000 37,633 888.40 24,000 37,633 888.50 24,000 37,633 888.60 24,000 37,633 888.70 24,000 37,633 888.80 24,000 37,633 888.90 24,000 37,633 889.00 24,000 37,633 889.10 24,000 37,633 Elevation (feet) Surface (sq-ft) Storage (cubic-feet) 889.20 24,000 37,633 889.30 24,000 37,633 889.40 24,000 37,633 889.50 24,000 37,633 889.60 24,000 37,633 889.70 24,000 37,633 MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32"Avienda - Existing Printed 8/3/2018Prepared by LANDFORM Page 72HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Pond 71P: Interlachen Inflow Area = 30.860 ac, 27.80% Impervious, Inflow Depth = 0.50" for 1.1 Inch Equiv. event Inflow = 21.43 cfs @ 12.15 hrs, Volume= 1.277 af Outflow = 2.05 cfs @ 13.13 hrs, Volume= 1.267 af, Atten= 90%, Lag= 59.0 min Primary = 2.05 cfs @ 13.13 hrs, Volume= 1.267 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 870.62' @ 13.13 hrs Surf.Area= 52,520 sf Storage= 31,965 cf Plug-Flow detention time= 615.5 min calculated for 1.267 af (99% of inflow) Center-of-Mass det. time= 611.3 min ( 1,406.6 - 795.2 ) Volume Invert Avail.Storage Storage Description #1 870.00' 381,460 cf Custom Stage Data (Prismatic) Listed below (Recalc) Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 870.00 50,570 0 0 872.00 56,860 107,430 107,430 875.00 74,330 196,785 304,215 876.00 80,160 77,245 381,460 Device Routing Invert Outlet Devices #1 Primary 870.00'24.0" Round Culvert L= 33.0' RCP, square edge headwall, Ke= 0.500 Inlet / Outlet Invert= 870.00' / 869.67' S= 0.0100 '/' Cc= 0.900 n= 0.012, Flow Area= 3.14 sf #2 Device 1 866.61'24.0" Round Culvert L= 21.0' RCP, end-section conforming to fill, Ke= 0.500 Inlet / Outlet Invert= 866.50' / 866.61' S= -0.0052 '/' Cc= 0.900 n= 0.012, Flow Area= 3.14 sf Primary OutFlow Max=2.05 cfs @ 13.13 hrs HW=870.62' TW=869.59' (Dynamic Tailwater) 1=Culvert (Barrel Controls 2.05 cfs @ 3.70 fps) 2=Culvert (Passes 2.05 cfs of 11.91 cfs potential flow) MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32"Avienda - Existing Printed 8/3/2018Prepared by LANDFORM Page 73HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Pond 71P: Interlachen Inflow Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 Inflow Area=30.860 ac Peak Elev=870.62' Storage=31,965 cf 21.43 cfs 2.05 cfs MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32"Avienda - Existing Printed 8/3/2018Prepared by LANDFORM Page 74HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Stage-Area-Storage for Pond 71P: Interlachen Elevation (feet) Surface (sq-ft) Storage (cubic-feet) 870.00 50,570 0 870.10 50,885 5,073 870.20 51,199 10,177 870.30 51,513 15,313 870.40 51,828 20,480 870.50 52,143 25,678 870.60 52,457 30,908 870.70 52,772 36,170 870.80 53,086 41,462 870.90 53,400 46,787 871.00 53,715 52,143 871.10 54,030 57,530 871.20 54,344 62,948 871.30 54,658 68,399 871.40 54,973 73,880 871.50 55,288 79,393 871.60 55,602 84,938 871.70 55,917 90,514 871.80 56,231 96,121 871.90 56,545 101,760 872.00 56,860 107,430 872.10 57,442 113,145 872.20 58,025 118,918 872.30 58,607 124,750 872.40 59,189 130,640 872.50 59,772 136,588 872.60 60,354 142,594 872.70 60,936 148,659 872.80 61,519 154,781 872.90 62,101 160,962 873.00 62,683 167,202 873.10 63,266 173,499 873.20 63,848 179,855 873.30 64,430 186,269 873.40 65,013 192,741 873.50 65,595 199,271 873.60 66,177 205,860 873.70 66,760 212,507 873.80 67,342 219,212 873.90 67,924 225,975 874.00 68,507 232,797 874.10 69,089 239,676 874.20 69,671 246,614 874.30 70,254 253,611 874.40 70,836 260,665 874.50 71,418 267,778 874.60 72,001 274,949 874.70 72,583 282,178 874.80 73,165 289,465 874.90 73,748 296,811 875.00 74,330 304,215 875.10 74,913 311,677 Elevation (feet) Surface (sq-ft) Storage (cubic-feet) 875.20 75,496 319,198 875.30 76,079 326,776 875.40 76,662 334,413 875.50 77,245 342,109 875.60 77,828 349,862 875.70 78,411 357,674 875.80 78,994 365,545 875.90 79,577 373,473 876.00 80,160 381,460 MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32"Avienda - Existing Printed 8/3/2018Prepared by LANDFORM Page 75HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Pond 72P: South MNDOT M9 Wetland Inflow Area = 113.390 ac, 7.57% Impervious, Inflow Depth = 0.22" for 1.1 Inch Equiv. event Inflow = 7.08 cfs @ 12.47 hrs, Volume= 2.039 af Outflow = 0.28 cfs @ 25.30 hrs, Volume= 1.818 af, Atten= 96%, Lag= 769.9 min Primary = 0.28 cfs @ 25.30 hrs, Volume= 1.818 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 869.76' @ 25.30 hrs Surf.Area= 327,042 sf Storage= 69,629 cf Plug-Flow detention time= 4,581.5 min calculated for 1.818 af (89% of inflow) Center-of-Mass det. time= 4,324.1 min ( 5,537.8 - 1,213.7 ) Volume Invert Avail.Storage Storage Description #1 869.50' 2,891,990 cf Custom Stage Data (Prismatic) Listed below (Recalc) Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 869.50 214,970 0 0 870.00 433,070 162,010 162,010 871.00 489,600 461,335 623,345 872.00 532,650 511,125 1,134,470 875.00 639,030 1,757,520 2,891,990 Device Routing Invert Outlet Devices #1 Primary 869.00'18.0" Round Culvert L= 276.0' RCP, square edge headwall, Ke= 0.500 Inlet / Outlet Invert= 869.00' / 866.93' S= 0.0075 '/' Cc= 0.900 n= 0.013 Concrete pipe, straight & clean, Flow Area= 1.77 sf #2 Device 1 869.50'12.0" Vert. Orifice/Grate C= 0.600 #3 Device 2 869.36'18.0" Round Culvert L= 172.0' RCP, end-section conforming to fill, Ke= 0.500 Inlet / Outlet Invert= 868.50' / 869.36' S= -0.0050 '/' Cc= 0.900 n= 0.013 Concrete pipe, straight & clean, Flow Area= 1.77 sf Primary OutFlow Max=0.28 cfs @ 25.30 hrs HW=869.76' (Free Discharge) 1=Culvert (Passes 0.28 cfs of 2.60 cfs potential flow) 2=Orifice/Grate (Orifice Controls 0.28 cfs @ 1.73 fps) 3=Culvert (Passes 0.28 cfs of 0.80 cfs potential flow) MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32"Avienda - Existing Printed 8/3/2018Prepared by LANDFORM Page 76HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Pond 72P: South MNDOT M9 Wetland Inflow Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)7 6 5 4 3 2 1 0 Inflow Area=113.390 ac Peak Elev=869.76' Storage=69,629 cf 7.08 cfs 0.28 cfs MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32"Avienda - Existing Printed 8/3/2018Prepared by LANDFORM Page 77HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Stage-Area-Storage for Pond 72P: South MNDOT M9 Wetland Elevation (feet) Surface (sq-ft) Storage (cubic-feet) 869.50 214,970 0 869.60 258,590 23,678 869.70 302,210 51,718 869.80 345,830 84,120 869.90 389,450 120,884 870.00 433,070 162,010 870.10 438,723 205,600 870.20 444,376 249,755 870.30 450,029 294,475 870.40 455,682 339,760 870.50 461,335 385,611 870.60 466,988 432,027 870.70 472,641 479,009 870.80 478,294 526,556 870.90 483,947 574,668 871.00 489,600 623,345 871.10 493,905 672,520 871.20 498,210 722,126 871.30 502,515 772,162 871.40 506,820 822,629 871.50 511,125 873,526 871.60 515,430 924,854 871.70 519,735 976,612 871.80 524,040 1,028,801 871.90 528,345 1,081,420 872.00 532,650 1,134,470 872.10 536,196 1,187,912 872.20 539,742 1,241,709 872.30 543,288 1,295,861 872.40 546,834 1,350,367 872.50 550,380 1,405,228 872.60 553,926 1,460,443 872.70 557,472 1,516,013 872.80 561,018 1,571,937 872.90 564,564 1,628,216 873.00 568,110 1,684,850 873.10 571,656 1,741,838 873.20 575,202 1,799,181 873.30 578,748 1,856,879 873.40 582,294 1,914,931 873.50 585,840 1,973,338 873.60 589,386 2,032,099 873.70 592,932 2,091,215 873.80 596,478 2,150,685 873.90 600,024 2,210,510 874.00 603,570 2,270,690 874.10 607,116 2,331,224 874.20 610,662 2,392,113 874.30 614,208 2,453,357 874.40 617,754 2,514,955 874.50 621,300 2,576,908 874.60 624,846 2,639,215 Elevation (feet) Surface (sq-ft) Storage (cubic-feet) 874.70 628,392 2,701,877 874.80 631,938 2,764,893 874.90 635,484 2,828,264 875.00 639,030 2,891,990 MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda - Existing Printed 8/3/2018Prepared by LANDFORM Page 78HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Time span=0.00-360.00 hrs, dt=0.01 hrs, 36001 points Runoff by SCS TR-20 method, UH=SCS, Weighted-Q Reach routing by Dyn-Stor-Ind method - Pond routing by Dyn-Stor-Ind method Runoff Area=1,300,770 sf 0.00% Impervious Runoff Depth=0.75"Subcatchment 8S: South - Central to Flow Length=1,321' Tc=24.5 min CN=WQ Runoff=18.94 cfs 1.863 af Runoff Area=140,359 sf 0.00% Impervious Runoff Depth=0.16"Subcatchment 9.1S: East Woods Flow Length=530' Tc=15.2 min CN=55 Runoff=0.19 cfs 0.043 af Runoff Area=88,007 sf 0.00% Impervious Runoff Depth=0.28"Subcatchment 9.2S: Northeast Woods Flow Length=623' Tc=19.5 min CN=WQ Runoff=0.33 cfs 0.047 af Runoff Area=258,057 sf 0.00% Impervious Runoff Depth=1.09"Subcatchment 9.3S: South Flow Length=550' Tc=10.3 min CN=WQ Runoff=9.08 cfs 0.540 af Runoff Area=323,827 sf 0.00% Impervious Runoff Depth=1.08"Subcatchment 9.4S: Southeast Flow Length=912' Tc=16.5 min CN=WQ Runoff=8.97 cfs 0.669 af Runoff Area=2.080 ac 0.00% Impervious Runoff Depth=1.41"Subcatchment 71-1S: Interlacn Subcatch 1 Tc=7.0 min CN=84 Runoff=4.95 cfs 0.244 af Runoff Area=1.160 ac 100.00% Impervious Runoff Depth=2.87"Subcatchment 71-2S: Interlacn Subcatch 2 Tc=7.0 min CN=100 Runoff=4.76 cfs 0.277 af Runoff Area=0.810 ac 0.00% Impervious Runoff Depth=2.22"Subcatchment 72S: 6_Temp Tc=9.0 min CN=94 Runoff=2.69 cfs 0.150 af Runoff Area=2.360 ac 100.00% Impervious Runoff Depth=2.64"Subcatchment 73S: N68 Tc=7.0 min CN=98 Runoff=9.53 cfs 0.519 af Runoff Area=1.020 ac 0.00% Impervious Runoff Depth=1.87"Subcatchment 74S: 5_Temp Tc=9.0 min CN=90 Runoff=2.91 cfs 0.159 af Runoff Area=3.010 ac 100.00% Impervious Runoff Depth=2.64"Subcatchment 75S: 3225 Tc=7.0 min CN=98 Runoff=12.15 cfs 0.662 af Runoff Area=8.310 ac 0.00% Impervious Runoff Depth=1.15"Subcatchment 76S: 3236 Tc=14.0 min CN=80 Runoff=11.70 cfs 0.799 af Runoff Area=0.950 ac 0.00% Impervious Runoff Depth=1.34"Subcatchment 77S: 3238 Tc=7.0 min CN=83 Runoff=2.15 cfs 0.106 af Runoff Area=0.630 ac 0.00% Impervious Runoff Depth=1.95"Subcatchment 78S: 3243 Tc=7.0 min CN=91 Runoff=2.06 cfs 0.102 af Runoff Area=2.050 ac 100.00% Impervious Runoff Depth=2.64"Subcatchment 79S: 3245 Tc=7.0 min CN=98 Runoff=8.27 cfs 0.451 af Runoff Area=0.350 ac 0.00% Impervious Runoff Depth=1.87"Subcatchment 80S: 3250 Tc=7.0 min CN=90 Runoff=1.10 cfs 0.054 af MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda - Existing Printed 8/3/2018Prepared by LANDFORM Page 79HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Runoff Area=5.950 ac 0.00% Impervious Runoff Depth=0.93"Subcatchment 81S: 3343 Tc=19.0 min CN=76 Runoff=5.57 cfs 0.460 af Runoff Area=1.480 ac 0.00% Impervious Runoff Depth=1.04"Subcatchment 82S: 3345 Tc=7.0 min CN=78 Runoff=2.51 cfs 0.128 af Runoff Area=0.700 ac 0.00% Impervious Runoff Depth=1.63"Subcatchment 83S: 3348 Tc=7.0 min CN=87 Runoff=1.93 cfs 0.095 af Runoff Area=2.100 ac 0.00% Impervious Runoff Depth=1.09"Subcatchment 84S: SE12 Tc=11.0 min CN=79 Runoff=3.13 cfs 0.192 af Runoff Area=4.530 ac 0.00% Impervious Runoff Depth=0.60"Subcatchment 85S: 1S Tc=15.0 min CN=69 Runoff=2.68 cfs 0.227 af Runoff Area=5.800 ac 0.00% Impervious Runoff Depth=0.60"Subcatchment 86S: 2S Tc=25.0 min CN=69 Runoff=2.66 cfs 0.291 af Runoff Area=21.638 ac 0.00% Impervious Runoff Depth=0.93"Subcatchment 87S: M9 Tc=29.0 min CN=76 Runoff=16.15 cfs 1.674 af Inflow=31.87 cfs 3.163 afReach 8R: South Drainage Outflow=31.87 cfs 3.163 af Inflow=19.25 cfs 1.910 afReach 9R: Wetland 4 Channel Outflow=19.25 cfs 1.910 af Avg. Flow Depth=1.24' Max Vel=7.29 fps Inflow=14.88 cfs 0.828 afReach 72R: N68 24.0" Round Pipe n=0.012 L=63.0' S=0.0075 '/' Capacity=21.17 cfs Outflow=14.88 cfs 0.828 af Peak Elev=884.58' Storage=882 cf Inflow=18.94 cfs 1.863 afPond 8P: Wetland 4 Outflow=18.93 cfs 1.863 af Peak Elev=871.72' Storage=91,701 cf Inflow=64.95 cfs 4.207 afPond 71P: Interlachen Outflow=11.21 cfs 4.197 af Peak Elev=870.35' Storage=315,379 cf Inflow=62.46 cfs 9.743 afPond 72P: South MNDOT M9 Wetland Outflow=2.22 cfs 9.466 af Total Runoff Area = 113.390 ac Runoff Volume = 9.754 af Average Runoff Depth = 1.03" 92.43% Pervious = 104.810 ac 7.57% Impervious = 8.580 ac MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda - Existing Printed 8/3/2018Prepared by LANDFORM Page 80HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 8S: South - Central to Wetland 4 Runoff = 18.94 cfs @ 12.36 hrs, Volume= 1.863 af, Depth= 0.75" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Area (sf) CN Description * 15,505 79 Wetland 5, Pasture/grassland/range, Poor, HSG B 21,030 55 Woods, Good, HSG B 185,110 79 Pasture/grassland/range, Poor, HSG B 460,890 55 Woods, Good, HSG B 618,235 79 Pasture/grassland/range, Poor, HSG B 1,300,770 Weighted Average 1,300,770 70 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 7.8 100 0.0300 0.21 Sheet Flow, Range n= 0.130 P2= 2.87" 15.2 1,028 0.0260 1.13 Shallow Concentrated Flow, Short Grass Pasture Kv= 7.0 fps 1.5 193 0.0200 2.12 Shallow Concentrated Flow, Wetland Grassed Waterway Kv= 15.0 fps 24.5 1,321 Total Subcatchment 8S: South - Central to Wetland 4 Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Runoff Area=1,300,770 sf Runoff Volume=1.863 af Runoff Depth=0.75" Flow Length=1,321' Tc=24.5 min CN=WQ 18.94 cfs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda - Existing Printed 8/3/2018Prepared by LANDFORM Page 81HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 9.1S: East Woods Runoff = 0.19 cfs @ 12.58 hrs, Volume= 0.043 af, Depth= 0.16" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Area (sf) CN Description 140,359 55 Woods, Good, HSG B 140,359 55 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 11.1 75 0.0670 0.11 Sheet Flow, Woods: Light underbrush n= 0.400 P2= 2.87" 4.1 455 0.1380 1.86 Shallow Concentrated Flow, Woodland Kv= 5.0 fps 15.2 530 Total Subcatchment 9.1S: East Woods Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.21 0.2 0.19 0.18 0.17 0.16 0.15 0.14 0.13 0.12 0.11 0.1 0.09 0.08 0.07 0.06 0.05 0.04 0.03 0.02 0.01 0 MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Runoff Area=140,359 sf Runoff Volume=0.043 af Runoff Depth=0.16" Flow Length=530' Tc=15.2 min CN=55 0.19 cfs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda - Existing Printed 8/3/2018Prepared by LANDFORM Page 82HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 9.2S: Northeast Woods Runoff = 0.33 cfs @ 12.33 hrs, Volume= 0.047 af, Depth= 0.28" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Area (sf) CN Description 76,845 55 Woods, Good, HSG B 11,162 79 Pasture/grassland/range, Poor, HSG B 88,007 Weighted Average 88,007 58 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 14.2 100 0.0650 0.12 Sheet Flow, Woods: Light underbrush n= 0.400 P2= 2.87" 5.3 523 0.1080 1.64 Shallow Concentrated Flow, Woodland Kv= 5.0 fps 19.5 623 Total Subcatchment 9.2S: Northeast Woods Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.36 0.34 0.32 0.3 0.28 0.26 0.24 0.22 0.2 0.18 0.16 0.14 0.12 0.1 0.08 0.06 0.04 0.02 0 MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Runoff Area=88,007 sf Runoff Volume=0.047 af Runoff Depth=0.28" Flow Length=623' Tc=19.5 min CN=WQ 0.33 cfs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda - Existing Printed 8/3/2018Prepared by LANDFORM Page 83HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 9.3S: South Runoff = 9.08 cfs @ 12.15 hrs, Volume= 0.540 af, Depth= 1.09" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Area (sf) CN Description 3,690 55 Woods, Good, HSG B 246,824 79 Pasture/grassland/range, Poor, HSG B 7,543 86 Pasture/grassland/range, Poor, HSG C 258,057 Weighted Average 258,057 79 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 6.5 90 0.0390 0.23 Sheet Flow, Range n= 0.130 P2= 2.87" 3.8 460 0.0850 2.04 Shallow Concentrated Flow, Short Grass Pasture Kv= 7.0 fps 10.3 550 Total Subcatchment 9.3S: South Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)10 9 8 7 6 5 4 3 2 1 0 MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Runoff Area=258,057 sf Runoff Volume=0.540 af Runoff Depth=1.09" Flow Length=550' Tc=10.3 min CN=WQ 9.08 cfs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda - Existing Printed 8/3/2018Prepared by LANDFORM Page 84HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 9.4S: Southeast Runoff = 8.97 cfs @ 12.23 hrs, Volume= 0.669 af, Depth= 1.08" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Area (sf) CN Description 4,560 55 Woods, Good, HSG B 2,090 58 Meadow, non-grazed, HSG B 313,772 79 Pasture/grassland/range, Poor, HSG B 3,405 86 Pasture/grassland/range, Poor, HSG C 323,827 Weighted Average 323,827 79 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 6.0 55 0.0180 0.15 Sheet Flow, Range n= 0.130 P2= 2.87" 10.5 857 0.0380 1.36 Shallow Concentrated Flow, Short Grass Pasture Kv= 7.0 fps 16.5 912 Total Subcatchment 9.4S: Southeast Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)10 9 8 7 6 5 4 3 2 1 0 MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Runoff Area=323,827 sf Runoff Volume=0.669 af Runoff Depth=1.08" Flow Length=912' Tc=16.5 min CN=WQ 8.97 cfs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda - Existing Printed 8/3/2018Prepared by LANDFORM Page 85HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 71-1S: Interlacn Subcatch 1 Runoff = 4.95 cfs @ 12.10 hrs, Volume= 0.244 af, Depth= 1.41" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Area (ac) CN Description * 2.080 84 Weoghted 2.080 84 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 7.0 Direct Entry, Subcatchment 71-1S: Interlacn Subcatch 1 Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)5 4 3 2 1 0 MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Runoff Area=2.080 ac Runoff Volume=0.244 af Runoff Depth=1.41" Tc=7.0 min CN=84 4.95 cfs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda - Existing Printed 8/3/2018Prepared by LANDFORM Page 86HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 71-2S: Interlacn Subcatch 2 Runoff = 4.76 cfs @ 12.09 hrs, Volume= 0.277 af, Depth= 2.87" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Area (ac) CN Description * 1.160 100 1.160 100 100.00% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 7.0 Direct Entry, Subcatchment 71-2S: Interlacn Subcatch 2 Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)5 4 3 2 1 0 MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Runoff Area=1.160 ac Runoff Volume=0.277 af Runoff Depth=2.87" Tc=7.0 min CN=100 4.76 cfs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda - Existing Printed 8/3/2018Prepared by LANDFORM Page 87HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 72S: 6_Temp Runoff = 2.69 cfs @ 12.12 hrs, Volume= 0.150 af, Depth= 2.22" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Area (ac) CN Description * 0.810 94 Weighted 0.810 94 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 9.0 Direct Entry, Subcatchment 72S: 6_Temp Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)3 2 1 0 MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Runoff Area=0.810 ac Runoff Volume=0.150 af Runoff Depth=2.22" Tc=9.0 min CN=94 2.69 cfs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda - Existing Printed 8/3/2018Prepared by LANDFORM Page 88HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 73S: N68 Runoff = 9.53 cfs @ 12.09 hrs, Volume= 0.519 af, Depth= 2.64" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Area (ac) CN Description * 2.360 98 Weighted 2.360 98 100.00% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 7.0 Direct Entry, Subcatchment 73S: N68 Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)10 9 8 7 6 5 4 3 2 1 0 MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Runoff Area=2.360 ac Runoff Volume=0.519 af Runoff Depth=2.64" Tc=7.0 min CN=98 9.53 cfs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda - Existing Printed 8/3/2018Prepared by LANDFORM Page 89HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 74S: 5_Temp Runoff = 2.91 cfs @ 12.12 hrs, Volume= 0.159 af, Depth= 1.87" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Area (ac) CN Description * 1.020 90 1.020 90 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 9.0 Direct Entry, Subcatchment 74S: 5_Temp Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)3 2 1 0 MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Runoff Area=1.020 ac Runoff Volume=0.159 af Runoff Depth=1.87" Tc=9.0 min CN=90 2.91 cfs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda - Existing Printed 8/3/2018Prepared by LANDFORM Page 90HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 75S: 3225 Runoff = 12.15 cfs @ 12.09 hrs, Volume= 0.662 af, Depth= 2.64" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Area (ac) CN Description * 3.010 98 Weighted 3.010 98 100.00% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 7.0 Direct Entry, Subcatchment 75S: 3225 Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)13 12 11 10 9 8 7 6 5 4 3 2 1 0 MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Runoff Area=3.010 ac Runoff Volume=0.662 af Runoff Depth=2.64" Tc=7.0 min CN=98 12.15 cfs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda - Existing Printed 8/3/2018Prepared by LANDFORM Page 91HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 76S: 3236 Runoff = 11.70 cfs @ 12.20 hrs, Volume= 0.799 af, Depth= 1.15" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Area (ac) CN Description * 8.310 80 Weighted 8.310 80 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 14.0 Direct Entry, Subcatchment 76S: 3236 Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)13 12 11 10 9 8 7 6 5 4 3 2 1 0 MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Runoff Area=8.310 ac Runoff Volume=0.799 af Runoff Depth=1.15" Tc=14.0 min CN=80 11.70 cfs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda - Existing Printed 8/3/2018Prepared by LANDFORM Page 92HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 77S: 3238 Runoff = 2.15 cfs @ 12.10 hrs, Volume= 0.106 af, Depth= 1.34" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Area (ac) CN Description * 0.950 83 Weighted 0.950 83 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 7.0 Direct Entry, Subcatchment 77S: 3238 Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)2 1 0 MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Runoff Area=0.950 ac Runoff Volume=0.106 af Runoff Depth=1.34" Tc=7.0 min CN=83 2.15 cfs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda - Existing Printed 8/3/2018Prepared by LANDFORM Page 93HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 78S: 3243 Runoff = 2.06 cfs @ 12.10 hrs, Volume= 0.102 af, Depth= 1.95" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Area (ac) CN Description * 0.630 91 Weighted 0.630 91 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 7.0 Direct Entry, Subcatchment 78S: 3243 Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)2 1 0 MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Runoff Area=0.630 ac Runoff Volume=0.102 af Runoff Depth=1.95" Tc=7.0 min CN=91 2.06 cfs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda - Existing Printed 8/3/2018Prepared by LANDFORM Page 94HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 79S: 3245 Runoff = 8.27 cfs @ 12.09 hrs, Volume= 0.451 af, Depth= 2.64" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Area (ac) CN Description * 2.050 98 Weighted 2.050 98 100.00% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 7.0 Direct Entry, Subcatchment 79S: 3245 Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)9 8 7 6 5 4 3 2 1 0 MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Runoff Area=2.050 ac Runoff Volume=0.451 af Runoff Depth=2.64" Tc=7.0 min CN=98 8.27 cfs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda - Existing Printed 8/3/2018Prepared by LANDFORM Page 95HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 80S: 3250 Runoff = 1.10 cfs @ 12.10 hrs, Volume= 0.054 af, Depth= 1.87" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Area (ac) CN Description * 0.350 90 Weighted 0.350 90 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 7.0 Direct Entry, Subcatchment 80S: 3250 Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)1 0 MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Runoff Area=0.350 ac Runoff Volume=0.054 af Runoff Depth=1.87" Tc=7.0 min CN=90 1.10 cfs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda - Existing Printed 8/3/2018Prepared by LANDFORM Page 96HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 81S: 3343 Runoff = 5.57 cfs @ 12.27 hrs, Volume= 0.460 af, Depth= 0.93" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Area (ac) CN Description * 5.950 76 Weighted 5.950 76 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 19.0 Direct Entry, Subcatchment 81S: 3343 Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)6 5 4 3 2 1 0 MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Runoff Area=5.950 ac Runoff Volume=0.460 af Runoff Depth=0.93" Tc=19.0 min CN=76 5.57 cfs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda - Existing Printed 8/3/2018Prepared by LANDFORM Page 97HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 82S: 3345 Runoff = 2.51 cfs @ 12.10 hrs, Volume= 0.128 af, Depth= 1.04" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Area (ac) CN Description * 1.480 78 Weighted 1.480 78 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 7.0 Direct Entry, Subcatchment 82S: 3345 Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)2 1 0 MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Runoff Area=1.480 ac Runoff Volume=0.128 af Runoff Depth=1.04" Tc=7.0 min CN=78 2.51 cfs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda - Existing Printed 8/3/2018Prepared by LANDFORM Page 98HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 83S: 3348 Runoff = 1.93 cfs @ 12.10 hrs, Volume= 0.095 af, Depth= 1.63" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Area (ac) CN Description * 0.700 87 Weighted 0.700 87 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 7.0 Direct Entry, Subcatchment 83S: 3348 Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)2 1 0 MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Runoff Area=0.700 ac Runoff Volume=0.095 af Runoff Depth=1.63" Tc=7.0 min CN=87 1.93 cfs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda - Existing Printed 8/3/2018Prepared by LANDFORM Page 99HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 84S: SE12 Runoff = 3.13 cfs @ 12.16 hrs, Volume= 0.192 af, Depth= 1.09" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Area (ac) CN Description * 2.100 79 Weighted 2.100 79 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 11.0 Direct Entry, Subcatchment 84S: SE12 Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)3 2 1 0 MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Runoff Area=2.100 ac Runoff Volume=0.192 af Runoff Depth=1.09" Tc=11.0 min CN=79 3.13 cfs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda - Existing Printed 8/3/2018Prepared by LANDFORM Page 100HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 85S: 1S Runoff = 2.68 cfs @ 12.24 hrs, Volume= 0.227 af, Depth= 0.60" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Area (ac) CN Description * 4.530 69 Weighted 4.530 69 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 15.0 Direct Entry, Subcatchment 85S: 1S Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)2 1 0 MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Runoff Area=4.530 ac Runoff Volume=0.227 af Runoff Depth=0.60" Tc=15.0 min CN=69 2.68 cfs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda - Existing Printed 8/3/2018Prepared by LANDFORM Page 101HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 86S: 2S Runoff = 2.66 cfs @ 12.39 hrs, Volume= 0.291 af, Depth= 0.60" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Area (ac) CN Description * 5.800 69 Weighted 5.800 69 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 25.0 Direct Entry, Subcatchment 86S: 2S Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)2 1 0 MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Runoff Area=5.800 ac Runoff Volume=0.291 af Runoff Depth=0.60" Tc=25.0 min CN=69 2.66 cfs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda - Existing Printed 8/3/2018Prepared by LANDFORM Page 102HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 87S: M9 Runoff = 16.15 cfs @ 12.41 hrs, Volume= 1.674 af, Depth= 0.93" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Area (ac) CN Description * 21.638 76 Weighted 21.638 76 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 29.0 Direct Entry, Subcatchment 87S: M9 Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Runoff Area=21.638 ac Runoff Volume=1.674 af Runoff Depth=0.93" Tc=29.0 min CN=76 16.15 cfs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda - Existing Printed 8/3/2018Prepared by LANDFORM Page 103HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Reach 8R: South Drainage [40] Hint: Not Described (Outflow=Inflow) Inflow Area = 48.462 ac, 0.00% Impervious, Inflow Depth = 0.78" for 2y 24hr event Inflow = 31.87 cfs @ 12.29 hrs, Volume= 3.163 af Outflow = 31.87 cfs @ 12.29 hrs, Volume= 3.163 af, Atten= 0%, Lag= 0.0 min Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Reach 8R: South Drainage Inflow Outflow Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)34 32 30 28 26 24 22 20 18 16 14 12 10 8 6 4 2 0 Inflow Area=48.462 ac 31.87 cfs 31.87 cfs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda - Existing Printed 8/3/2018Prepared by LANDFORM Page 104HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Reach 9R: Wetland 4 Channel [40] Hint: Not Described (Outflow=Inflow) Inflow Area = 31.882 ac, 0.00% Impervious, Inflow Depth = 0.72" for 2y 24hr event Inflow = 19.25 cfs @ 12.36 hrs, Volume= 1.910 af Outflow = 19.25 cfs @ 12.36 hrs, Volume= 1.910 af, Atten= 0%, Lag= 0.0 min Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Reach 9R: Wetland 4 Channel Inflow Outflow Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 Inflow Area=31.882 ac 19.25 cfs 19.25 cfs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda - Existing Printed 8/3/2018Prepared by LANDFORM Page 105HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Reach 72R: N68 [52] Hint: Inlet/Outlet conditions not evaluated Inflow Area = 4.190 ac, 56.32% Impervious, Inflow Depth = 2.37" for 2y 24hr event Inflow = 14.88 cfs @ 12.10 hrs, Volume= 0.828 af Outflow = 14.88 cfs @ 12.10 hrs, Volume= 0.828 af, Atten= 0%, Lag= 0.1 min Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Max. Velocity= 7.29 fps, Min. Travel Time= 0.1 min Avg. Velocity = 2.08 fps, Avg. Travel Time= 0.5 min Peak Storage= 128 cf @ 12.10 hrs Average Depth at Peak Storage= 1.24' Bank-Full Depth= 2.00' Flow Area= 3.1 sf, Capacity= 21.17 cfs 24.0" Round Pipe n= 0.012 Length= 63.0' Slope= 0.0075 '/' Inlet Invert= 872.00', Outlet Invert= 871.53' Reach 72R: N68 Inflow Outflow Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 Inflow Area=4.190 ac Avg. Flow Depth=1.24' Max Vel=7.29 fps 24.0" Round Pipe n=0.012 L=63.0' S=0.0075 '/' Capacity=21.17 cfs 14.88 cfs 14.88 cfs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda - Existing Printed 8/3/2018Prepared by LANDFORM Page 106HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Stage-Area-Storage for Reach 72R: N68 Elevation (feet) End-Area (sq-ft) Storage (cubic-feet) 872.00 0.0 0 872.02 0.0 0 872.04 0.0 1 872.06 0.0 2 872.08 0.0 3 872.10 0.1 4 872.12 0.1 5 872.14 0.1 6 872.16 0.1 7 872.18 0.1 9 872.20 0.2 10 872.22 0.2 12 872.24 0.2 13 872.26 0.2 15 872.28 0.3 17 872.30 0.3 19 872.32 0.3 20 872.34 0.4 22 872.36 0.4 24 872.38 0.4 26 872.40 0.4 28 872.42 0.5 30 872.44 0.5 32 872.46 0.5 34 872.48 0.6 37 872.50 0.6 39 872.52 0.6 41 872.54 0.7 43 872.56 0.7 45 872.58 0.8 48 872.60 0.8 50 872.62 0.8 52 872.64 0.9 55 872.66 0.9 57 872.68 0.9 59 872.70 1.0 62 872.72 1.0 64 872.74 1.1 67 872.76 1.1 69 872.78 1.1 71 872.80 1.2 74 872.82 1.2 76 872.84 1.3 79 872.86 1.3 81 872.88 1.3 84 872.90 1.4 86 872.92 1.4 89 872.94 1.5 91 872.96 1.5 94 872.98 1.5 96 873.00 1.6 99 873.02 1.6 101 Elevation (feet) End-Area (sq-ft) Storage (cubic-feet) 873.04 1.7 104 873.06 1.7 107 873.08 1.7 109 873.10 1.8 112 873.12 1.8 114 873.14 1.8 117 873.16 1.9 119 873.18 1.9 122 873.20 2.0 124 873.22 2.0 126 873.24 2.0 129 873.26 2.1 131 873.28 2.1 134 873.30 2.2 136 873.32 2.2 139 873.34 2.2 141 873.36 2.3 143 873.38 2.3 146 873.40 2.3 148 873.42 2.4 150 873.44 2.4 153 873.46 2.5 155 873.48 2.5 157 873.50 2.5 159 873.52 2.6 161 873.54 2.6 164 873.56 2.6 166 873.58 2.7 168 873.60 2.7 170 873.62 2.7 172 873.64 2.8 174 873.66 2.8 176 873.68 2.8 177 873.70 2.8 179 873.72 2.9 181 873.74 2.9 183 873.76 2.9 184 873.78 3.0 186 873.80 3.0 188 873.82 3.0 189 873.84 3.0 191 873.86 3.0 192 873.88 3.1 193 873.90 3.1 194 873.92 3.1 195 873.94 3.1 196 873.96 3.1 197 873.98 3.1 198 874.00 3.1 198 MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda - Existing Printed 8/3/2018Prepared by LANDFORM Page 107HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Pond 8P: Wetland 4 Inflow Area = 29.862 ac, 0.00% Impervious, Inflow Depth = 0.75" for 2y 24hr event Inflow = 18.94 cfs @ 12.36 hrs, Volume= 1.863 af Outflow = 18.93 cfs @ 12.36 hrs, Volume= 1.863 af, Atten= 0%, Lag= 0.3 min Primary = 18.93 cfs @ 12.36 hrs, Volume= 1.863 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 884.58' @ 12.36 hrs Surf.Area= 2,225 sf Storage= 882 cf Plug-Flow detention time= 2.3 min calculated for 1.863 af (100% of inflow) Center-of-Mass det. time= 2.2 min ( 862.9 - 860.6 ) Volume Invert Avail.Storage Storage Description #1 884.00' 37,633 cf Custom Stage Data (Prismatic) Listed below (Recalc) Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 884.00 870 0 0 884.50 1,980 713 713 885.00 3,500 1,370 2,083 886.00 7,800 5,650 7,733 887.00 14,000 10,900 18,633 888.00 24,000 19,000 37,633 Device Routing Invert Outlet Devices #1 Primary 884.03'Asymmetrical Weir, C= 3.27 Offset (feet) 0.00 51.00 133.60 176.00 217.30 239.00 Elev. (feet) 889.78 886.05 884.03 885.84 889.00 889.78 Primary OutFlow Max=18.93 cfs @ 12.36 hrs HW=884.58' TW=0.00' (Dynamic Tailwater) 1=Asymmetrical Weir (Weir Controls 18.93 cfs @ 0.97 fps) MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda - Existing Printed 8/3/2018Prepared by LANDFORM Page 108HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Pond 8P: Wetland 4 Inflow Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 Inflow Area=29.862 ac Peak Elev=884.58' Storage=882 cf 18.94 cfs 18.93 cfs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda - Existing Printed 8/3/2018Prepared by LANDFORM Page 109HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Stage-Area-Storage for Pond 8P: Wetland 4 Elevation (feet) Surface (sq-ft) Storage (cubic-feet) 884.00 870 0 884.10 1,092 98 884.20 1,314 218 884.30 1,536 361 884.40 1,758 526 884.50 1,980 713 884.60 2,284 926 884.70 2,588 1,169 884.80 2,892 1,443 884.90 3,196 1,748 885.00 3,500 2,083 885.10 3,930 2,454 885.20 4,360 2,869 885.30 4,790 3,326 885.40 5,220 3,826 885.50 5,650 4,370 885.60 6,080 4,957 885.70 6,510 5,586 885.80 6,940 6,258 885.90 7,370 6,974 886.00 7,800 7,733 886.10 8,420 8,544 886.20 9,040 9,417 886.30 9,660 10,351 886.40 10,280 11,348 886.50 10,900 12,408 886.60 11,520 13,529 886.70 12,140 14,712 886.80 12,760 15,956 886.90 13,380 17,263 887.00 14,000 18,633 887.10 15,000 20,083 887.20 16,000 21,633 887.30 17,000 23,282 887.40 18,000 25,032 887.50 19,000 26,883 887.60 20,000 28,833 887.70 21,000 30,883 887.80 22,000 33,032 887.90 23,000 35,282 888.00 24,000 37,633 888.10 24,000 37,633 888.20 24,000 37,633 888.30 24,000 37,633 888.40 24,000 37,633 888.50 24,000 37,633 888.60 24,000 37,633 888.70 24,000 37,633 888.80 24,000 37,633 888.90 24,000 37,633 889.00 24,000 37,633 889.10 24,000 37,633 Elevation (feet) Surface (sq-ft) Storage (cubic-feet) 889.20 24,000 37,633 889.30 24,000 37,633 889.40 24,000 37,633 889.50 24,000 37,633 889.60 24,000 37,633 889.70 24,000 37,633 MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda - Existing Printed 8/3/2018Prepared by LANDFORM Page 110HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Pond 71P: Interlachen [61] Hint: Exceeded Reach 72R outlet invert by 0.19' @ 12.65 hrs Inflow Area = 30.860 ac, 27.80% Impervious, Inflow Depth = 1.64" for 2y 24hr event Inflow = 64.95 cfs @ 12.11 hrs, Volume= 4.207 af Outflow = 11.21 cfs @ 12.65 hrs, Volume= 4.197 af, Atten= 83%, Lag= 32.6 min Primary = 11.21 cfs @ 12.65 hrs, Volume= 4.197 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 871.72' @ 12.65 hrs Surf.Area= 55,983 sf Storage= 91,701 cf Plug-Flow detention time= 398.8 min calculated for 4.197 af (100% of inflow) Center-of-Mass det. time= 397.2 min ( 1,192.4 - 795.2 ) Volume Invert Avail.Storage Storage Description #1 870.00' 381,460 cf Custom Stage Data (Prismatic) Listed below (Recalc) Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 870.00 50,570 0 0 872.00 56,860 107,430 107,430 875.00 74,330 196,785 304,215 876.00 80,160 77,245 381,460 Device Routing Invert Outlet Devices #1 Primary 870.00'24.0" Round Culvert L= 33.0' RCP, square edge headwall, Ke= 0.500 Inlet / Outlet Invert= 870.00' / 869.67' S= 0.0100 '/' Cc= 0.900 n= 0.012, Flow Area= 3.14 sf #2 Device 1 866.61'24.0" Round Culvert L= 21.0' RCP, end-section conforming to fill, Ke= 0.500 Inlet / Outlet Invert= 866.50' / 866.61' S= -0.0052 '/' Cc= 0.900 n= 0.012, Flow Area= 3.14 sf Primary OutFlow Max=11.21 cfs @ 12.65 hrs HW=871.72' TW=869.91' (Dynamic Tailwater) 1=Culvert (Barrel Controls 11.21 cfs @ 5.23 fps) 2=Culvert (Passes 11.21 cfs of 19.85 cfs potential flow) MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda - Existing Printed 8/3/2018Prepared by LANDFORM Page 111HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Pond 71P: Interlachen Inflow Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)70 65 60 55 50 45 40 35 30 25 20 15 10 5 0 Inflow Area=30.860 ac Peak Elev=871.72' Storage=91,701 cf 64.95 cfs 11.21 cfs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda - Existing Printed 8/3/2018Prepared by LANDFORM Page 112HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Stage-Area-Storage for Pond 71P: Interlachen Elevation (feet) Surface (sq-ft) Storage (cubic-feet) 870.00 50,570 0 870.10 50,885 5,073 870.20 51,199 10,177 870.30 51,513 15,313 870.40 51,828 20,480 870.50 52,143 25,678 870.60 52,457 30,908 870.70 52,772 36,170 870.80 53,086 41,462 870.90 53,400 46,787 871.00 53,715 52,143 871.10 54,030 57,530 871.20 54,344 62,948 871.30 54,658 68,399 871.40 54,973 73,880 871.50 55,288 79,393 871.60 55,602 84,938 871.70 55,917 90,514 871.80 56,231 96,121 871.90 56,545 101,760 872.00 56,860 107,430 872.10 57,442 113,145 872.20 58,025 118,918 872.30 58,607 124,750 872.40 59,189 130,640 872.50 59,772 136,588 872.60 60,354 142,594 872.70 60,936 148,659 872.80 61,519 154,781 872.90 62,101 160,962 873.00 62,683 167,202 873.10 63,266 173,499 873.20 63,848 179,855 873.30 64,430 186,269 873.40 65,013 192,741 873.50 65,595 199,271 873.60 66,177 205,860 873.70 66,760 212,507 873.80 67,342 219,212 873.90 67,924 225,975 874.00 68,507 232,797 874.10 69,089 239,676 874.20 69,671 246,614 874.30 70,254 253,611 874.40 70,836 260,665 874.50 71,418 267,778 874.60 72,001 274,949 874.70 72,583 282,178 874.80 73,165 289,465 874.90 73,748 296,811 875.00 74,330 304,215 875.10 74,913 311,677 Elevation (feet) Surface (sq-ft) Storage (cubic-feet) 875.20 75,496 319,198 875.30 76,079 326,776 875.40 76,662 334,413 875.50 77,245 342,109 875.60 77,828 349,862 875.70 78,411 357,674 875.80 78,994 365,545 875.90 79,577 373,473 876.00 80,160 381,460 MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda - Existing Printed 8/3/2018Prepared by LANDFORM Page 113HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Pond 72P: South MNDOT M9 Wetland Inflow Area = 113.390 ac, 7.57% Impervious, Inflow Depth = 1.03" for 2y 24hr event Inflow = 62.46 cfs @ 12.34 hrs, Volume= 9.743 af Outflow = 2.22 cfs @ 22.89 hrs, Volume= 9.466 af, Atten= 96%, Lag= 632.7 min Primary = 2.22 cfs @ 22.89 hrs, Volume= 9.466 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 870.35' @ 22.89 hrs Surf.Area= 452,647 sf Storage= 315,379 cf Plug-Flow detention time= 2,833.2 min calculated for 9.466 af (97% of inflow) Center-of-Mass det. time= 2,737.1 min ( 3,740.5 - 1,003.4 ) Volume Invert Avail.Storage Storage Description #1 869.50' 2,891,990 cf Custom Stage Data (Prismatic) Listed below (Recalc) Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 869.50 214,970 0 0 870.00 433,070 162,010 162,010 871.00 489,600 461,335 623,345 872.00 532,650 511,125 1,134,470 875.00 639,030 1,757,520 2,891,990 Device Routing Invert Outlet Devices #1 Primary 869.00'18.0" Round Culvert L= 276.0' RCP, square edge headwall, Ke= 0.500 Inlet / Outlet Invert= 869.00' / 866.93' S= 0.0075 '/' Cc= 0.900 n= 0.013 Concrete pipe, straight & clean, Flow Area= 1.77 sf #2 Device 1 869.50'12.0" Vert. Orifice/Grate C= 0.600 #3 Device 2 869.36'18.0" Round Culvert L= 172.0' RCP, end-section conforming to fill, Ke= 0.500 Inlet / Outlet Invert= 868.50' / 869.36' S= -0.0050 '/' Cc= 0.900 n= 0.013 Concrete pipe, straight & clean, Flow Area= 1.77 sf Primary OutFlow Max=2.22 cfs @ 22.89 hrs HW=870.35' (Free Discharge) 1=Culvert (Passes 2.22 cfs of 6.60 cfs potential flow) 2=Orifice/Grate (Orifice Controls 2.22 cfs @ 3.13 fps) 3=Culvert (Passes 2.22 cfs of 4.17 cfs potential flow) MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda - Existing Printed 8/3/2018Prepared by LANDFORM Page 114HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Pond 72P: South MNDOT M9 Wetland Inflow Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)65 60 55 50 45 40 35 30 25 20 15 10 5 0 Inflow Area=113.390 ac Peak Elev=870.35' Storage=315,379 cf 62.46 cfs 2.22 cfs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda - Existing Printed 8/3/2018Prepared by LANDFORM Page 115HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Stage-Area-Storage for Pond 72P: South MNDOT M9 Wetland Elevation (feet) Surface (sq-ft) Storage (cubic-feet) 869.50 214,970 0 869.60 258,590 23,678 869.70 302,210 51,718 869.80 345,830 84,120 869.90 389,450 120,884 870.00 433,070 162,010 870.10 438,723 205,600 870.20 444,376 249,755 870.30 450,029 294,475 870.40 455,682 339,760 870.50 461,335 385,611 870.60 466,988 432,027 870.70 472,641 479,009 870.80 478,294 526,556 870.90 483,947 574,668 871.00 489,600 623,345 871.10 493,905 672,520 871.20 498,210 722,126 871.30 502,515 772,162 871.40 506,820 822,629 871.50 511,125 873,526 871.60 515,430 924,854 871.70 519,735 976,612 871.80 524,040 1,028,801 871.90 528,345 1,081,420 872.00 532,650 1,134,470 872.10 536,196 1,187,912 872.20 539,742 1,241,709 872.30 543,288 1,295,861 872.40 546,834 1,350,367 872.50 550,380 1,405,228 872.60 553,926 1,460,443 872.70 557,472 1,516,013 872.80 561,018 1,571,937 872.90 564,564 1,628,216 873.00 568,110 1,684,850 873.10 571,656 1,741,838 873.20 575,202 1,799,181 873.30 578,748 1,856,879 873.40 582,294 1,914,931 873.50 585,840 1,973,338 873.60 589,386 2,032,099 873.70 592,932 2,091,215 873.80 596,478 2,150,685 873.90 600,024 2,210,510 874.00 603,570 2,270,690 874.10 607,116 2,331,224 874.20 610,662 2,392,113 874.30 614,208 2,453,357 874.40 617,754 2,514,955 874.50 621,300 2,576,908 874.60 624,846 2,639,215 Elevation (feet) Surface (sq-ft) Storage (cubic-feet) 874.70 628,392 2,701,877 874.80 631,938 2,764,893 874.90 635,484 2,828,264 875.00 639,030 2,891,990 MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4Avienda - Existing Printed 8/3/2018Prepared by LANDFORM Page 116HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Time span=0.00-360.00 hrs, dt=0.01 hrs, 36001 points Runoff by SCS TR-20 method, UH=SCS, Weighted-Q Reach routing by Dyn-Stor-Ind method - Pond routing by Dyn-Stor-Ind method Runoff Area=1,300,770 sf 0.00% Impervious Runoff Depth=6.96"Subcatchment 8S: South - Central to Flow Length=1,321' Tc=24.5 min AMC Adjusted CN=WQ Runoff=5.66 cfs 17.322 af Runoff Area=140,359 sf 0.00% Impervious Runoff Depth=6.96"Subcatchment 9.1S: East Woods Flow Length=530' Tc=15.2 min AMC Adjusted CN=98 Runoff=0.61 cfs 1.869 af Runoff Area=88,007 sf 0.00% Impervious Runoff Depth=6.96"Subcatchment 9.2S: Northeast Woods Flow Length=623' Tc=19.5 min AMC Adjusted CN=WQ Runoff=0.38 cfs 1.172 af Runoff Area=258,057 sf 0.00% Impervious Runoff Depth=6.96"Subcatchment 9.3S: South Flow Length=550' Tc=10.3 min AMC Adjusted CN=WQ Runoff=1.13 cfs 3.436 af Runoff Area=323,827 sf 0.00% Impervious Runoff Depth=6.96"Subcatchment 9.4S: Southeast Flow Length=912' Tc=16.5 min AMC Adjusted CN=WQ Runoff=1.41 cfs 4.312 af Runoff Area=2.080 ac 0.00% Impervious Runoff Depth=6.96"Subcatchment 71-1S: Interlacn Subcatch 1 Tc=7.0 min AMC Adjusted CN=98 Runoff=0.40 cfs 1.207 af Runoff Area=1.160 ac 100.00% Impervious Runoff Depth=7.20"Subcatchment 71-2S: Interlacn Subcatch 2 Tc=7.0 min CN=100 Runoff=0.22 cfs 0.696 af Runoff Area=0.810 ac 0.00% Impervious Runoff Depth=6.96"Subcatchment 72S: 6_Temp Tc=9.0 min AMC Adjusted CN=98 Runoff=0.15 cfs 0.470 af Runoff Area=2.360 ac 100.00% Impervious Runoff Depth=6.96"Subcatchment 73S: N68 Tc=7.0 min CN=98 Runoff=0.45 cfs 1.369 af Runoff Area=1.020 ac 0.00% Impervious Runoff Depth=6.96"Subcatchment 74S: 5_Temp Tc=9.0 min AMC Adjusted CN=98 Runoff=0.19 cfs 0.592 af Runoff Area=3.010 ac 100.00% Impervious Runoff Depth=6.96"Subcatchment 75S: 3225 Tc=7.0 min CN=98 Runoff=0.58 cfs 1.746 af Runoff Area=8.310 ac 0.00% Impervious Runoff Depth=6.96"Subcatchment 76S: 3236 Tc=14.0 min AMC Adjusted CN=98 Runoff=1.58 cfs 4.820 af Runoff Area=0.950 ac 0.00% Impervious Runoff Depth=6.96"Subcatchment 77S: 3238 Tc=7.0 min AMC Adjusted CN=98 Runoff=0.18 cfs 0.551 af Runoff Area=0.630 ac 0.00% Impervious Runoff Depth=6.96"Subcatchment 78S: 3243 Tc=7.0 min AMC Adjusted CN=98 Runoff=0.12 cfs 0.365 af Runoff Area=2.050 ac 100.00% Impervious Runoff Depth=6.96"Subcatchment 79S: 3245 Tc=7.0 min CN=98 Runoff=0.39 cfs 1.189 af Runoff Area=0.350 ac 0.00% Impervious Runoff Depth=6.96"Subcatchment 80S: 3250 Tc=7.0 min AMC Adjusted CN=98 Runoff=0.07 cfs 0.203 af MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4Avienda - Existing Printed 8/3/2018Prepared by LANDFORM Page 117HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Runoff Area=5.950 ac 0.00% Impervious Runoff Depth=6.96"Subcatchment 81S: 3343 Tc=19.0 min AMC Adjusted CN=98 Runoff=1.13 cfs 3.451 af Runoff Area=1.480 ac 0.00% Impervious Runoff Depth=6.96"Subcatchment 82S: 3345 Tc=7.0 min AMC Adjusted CN=98 Runoff=0.28 cfs 0.858 af Runoff Area=0.700 ac 0.00% Impervious Runoff Depth=6.96"Subcatchment 83S: 3348 Tc=7.0 min AMC Adjusted CN=98 Runoff=0.13 cfs 0.406 af Runoff Area=2.100 ac 0.00% Impervious Runoff Depth=6.96"Subcatchment 84S: SE12 Tc=11.0 min AMC Adjusted CN=98 Runoff=0.40 cfs 1.218 af Runoff Area=4.530 ac 0.00% Impervious Runoff Depth=6.96"Subcatchment 85S: 1S Tc=15.0 min AMC Adjusted CN=98 Runoff=0.86 cfs 2.628 af Runoff Area=5.800 ac 0.00% Impervious Runoff Depth=6.96"Subcatchment 86S: 2S Tc=25.0 min AMC Adjusted CN=98 Runoff=1.10 cfs 3.364 af Runoff Area=21.638 ac 0.00% Impervious Runoff Depth=6.96"Subcatchment 87S: M9 Tc=29.0 min AMC Adjusted CN=98 Runoff=4.10 cfs 12.551 af Inflow=9.19 cfs 28.111 afReach 8R: South Drainage Outflow=9.19 cfs 28.111 af Inflow=6.04 cfs 18.493 afReach 9R: Wetland 4 Channel Outflow=6.04 cfs 18.493 af Avg. Flow Depth=0.27' Max Vel=3.23 fps Inflow=0.80 cfs 2.430 afReach 72R: N68 24.0" Round Pipe n=0.012 L=63.0' S=0.0075 '/' Capacity=21.17 cfs Outflow=0.80 cfs 2.430 af Peak Elev=884.37' Storage=473 cf Inflow=5.66 cfs 17.322 afPond 8P: Wetland 4 Outflow=5.66 cfs 17.321 af Peak Elev=871.64' Storage=87,396 cf Inflow=5.88 cfs 17.924 afPond 71P: Interlachen Outflow=4.35 cfs 17.889 af Peak Elev=871.63' Storage=941,531 cf Inflow=19.96 cfs 65.761 afPond 72P: South MNDOT M9 Wetland Outflow=4.83 cfs 64.584 af Total Runoff Area = 113.390 ac Runoff Volume = 65.797 af Average Runoff Depth = 6.96" 92.43% Pervious = 104.810 ac 7.57% Impervious = 8.580 ac MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4Avienda - Existing Printed 8/3/2018Prepared by LANDFORM Page 118HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 8S: South - Central to Wetland 4 Runoff = 5.66 cfs @ 121.44 hrs, Volume= 17.322 af, Depth= 6.96" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4 Area (sf) CN Adj Description * 15,505 79 98 Wetland 5, Pasture/grassland/range, Poor, HSG B 21,030 55 98 Woods, Good, HSG B 185,110 79 98 Pasture/grassland/range, Poor, HSG B 460,890 55 98 Woods, Good, HSG B 618,235 79 98 Pasture/grassland/range, Poor, HSG B 1,300,770 Weighted Average 1,300,770 70 98 100.00% Pervious Area, AMC Adjusted Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 7.8 100 0.0300 0.21 Sheet Flow, Range n= 0.130 P2= 2.87" 15.2 1,028 0.0260 1.13 Shallow Concentrated Flow, Short Grass Pasture Kv= 7.0 fps 1.5 193 0.0200 2.12 Shallow Concentrated Flow, Wetland Grassed Waterway Kv= 15.0 fps 24.5 1,321 Total Subcatchment 8S: South - Central to Wetland 4 Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)6 5 4 3 2 1 0 MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20" AMC=4 Runoff Area=1,300,770 sf Runoff Volume=17.322 af Runoff Depth=6.96" Flow Length=1,321' Tc=24.5 min AMC Adjusted CN=WQ 5.66 cfs MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4Avienda - Existing Printed 8/3/2018Prepared by LANDFORM Page 119HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 9.1S: East Woods Runoff = 0.61 cfs @ 121.35 hrs, Volume= 1.869 af, Depth= 6.96" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4 Area (sf) CN Adj Description 140,359 55 98 Woods, Good, HSG B 140,359 Weighted Average 140,359 55 98 100.00% Pervious Area, AMC Adjusted Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 11.1 75 0.0670 0.11 Sheet Flow, Woods: Light underbrush n= 0.400 P2= 2.87" 4.1 455 0.1380 1.86 Shallow Concentrated Flow, Woodland Kv= 5.0 fps 15.2 530 Total Subcatchment 9.1S: East Woods Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.65 0.6 0.55 0.5 0.45 0.4 0.35 0.3 0.25 0.2 0.15 0.1 0.05 0 MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20" AMC=4 Runoff Area=140,359 sf Runoff Volume=1.869 af Runoff Depth=6.96" Flow Length=530' Tc=15.2 min AMC Adjusted CN=98 0.61 cfs MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4Avienda - Existing Printed 8/3/2018Prepared by LANDFORM Page 120HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 9.2S: Northeast Woods Runoff = 0.38 cfs @ 121.40 hrs, Volume= 1.172 af, Depth= 6.96" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4 Area (sf) CN Adj Description 76,845 55 98 Woods, Good, HSG B 11,162 79 98 Pasture/grassland/range, Poor, HSG B 88,007 Weighted Average 88,007 58 98 100.00% Pervious Area, AMC Adjusted Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 14.2 100 0.0650 0.12 Sheet Flow, Woods: Light underbrush n= 0.400 P2= 2.87" 5.3 523 0.1080 1.64 Shallow Concentrated Flow, Woodland Kv= 5.0 fps 19.5 623 Total Subcatchment 9.2S: Northeast Woods Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.42 0.4 0.38 0.36 0.34 0.32 0.3 0.28 0.26 0.24 0.22 0.2 0.18 0.16 0.14 0.12 0.1 0.08 0.06 0.04 0.02 0 MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20" AMC=4 Runoff Area=88,007 sf Runoff Volume=1.172 af Runoff Depth=6.96" Flow Length=623' Tc=19.5 min AMC Adjusted CN=WQ 0.38 cfs MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4Avienda - Existing Printed 8/3/2018Prepared by LANDFORM Page 121HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 9.3S: South Runoff = 1.13 cfs @ 121.30 hrs, Volume= 3.436 af, Depth= 6.96" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4 Area (sf) CN Adj Description 3,690 55 98 Woods, Good, HSG B 246,824 79 98 Pasture/grassland/range, Poor, HSG B 7,543 86 98 Pasture/grassland/range, Poor, HSG C 258,057 Weighted Average 258,057 79 98 100.00% Pervious Area, AMC Adjusted Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 6.5 90 0.0390 0.23 Sheet Flow, Range n= 0.130 P2= 2.87" 3.8 460 0.0850 2.04 Shallow Concentrated Flow, Short Grass Pasture Kv= 7.0 fps 10.3 550 Total Subcatchment 9.3S: South Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)1 0 MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20" AMC=4 Runoff Area=258,057 sf Runoff Volume=3.436 af Runoff Depth=6.96" Flow Length=550' Tc=10.3 min AMC Adjusted CN=WQ 1.13 cfs MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4Avienda - Existing Printed 8/3/2018Prepared by LANDFORM Page 122HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 9.4S: Southeast Runoff = 1.41 cfs @ 121.35 hrs, Volume= 4.312 af, Depth= 6.96" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4 Area (sf) CN Adj Description 4,560 55 98 Woods, Good, HSG B 2,090 58 98 Meadow, non-grazed, HSG B 313,772 79 98 Pasture/grassland/range, Poor, HSG B 3,405 86 98 Pasture/grassland/range, Poor, HSG C 323,827 Weighted Average 323,827 79 98 100.00% Pervious Area, AMC Adjusted Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 6.0 55 0.0180 0.15 Sheet Flow, Range n= 0.130 P2= 2.87" 10.5 857 0.0380 1.36 Shallow Concentrated Flow, Short Grass Pasture Kv= 7.0 fps 16.5 912 Total Subcatchment 9.4S: Southeast Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)1 0 MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20" AMC=4 Runoff Area=323,827 sf Runoff Volume=4.312 af Runoff Depth=6.96" Flow Length=912' Tc=16.5 min AMC Adjusted CN=WQ 1.41 cfs MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4Avienda - Existing Printed 8/3/2018Prepared by LANDFORM Page 123HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 71-1S: Interlacn Subcatch 1 Runoff = 0.40 cfs @ 121.26 hrs, Volume= 1.207 af, Depth= 6.96" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4 Area (ac) CN Adj Description * 2.080 84 98 Weoghted 2.080 Weighted Average 2.080 84 98 100.00% Pervious Area, AMC Adjusted Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 7.0 Direct Entry, Subcatchment 71-1S: Interlacn Subcatch 1 Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.44 0.42 0.4 0.38 0.36 0.34 0.32 0.3 0.28 0.26 0.24 0.22 0.2 0.18 0.16 0.14 0.12 0.1 0.08 0.06 0.04 0.02 0 MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20" AMC=4 Runoff Area=2.080 ac Runoff Volume=1.207 af Runoff Depth=6.96" Tc=7.0 min AMC Adjusted CN=98 0.40 cfs MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4Avienda - Existing Printed 8/3/2018Prepared by LANDFORM Page 124HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 71-2S: Interlacn Subcatch 2 Runoff = 0.22 cfs @ 121.26 hrs, Volume= 0.696 af, Depth= 7.20" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4 Area (ac) CN Description * 1.160 100 1.160 100 100.00% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 7.0 Direct Entry, Subcatchment 71-2S: Interlacn Subcatch 2 Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.24 0.23 0.22 0.21 0.2 0.19 0.18 0.17 0.16 0.15 0.14 0.13 0.12 0.11 0.1 0.09 0.08 0.07 0.06 0.05 0.04 0.03 0.02 0.01 0 MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20" AMC=4 Runoff Area=1.160 ac Runoff Volume=0.696 af Runoff Depth=7.20" Tc=7.0 min CN=100 0.22 cfs MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4Avienda - Existing Printed 8/3/2018Prepared by LANDFORM Page 125HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 72S: 6_Temp Runoff = 0.15 cfs @ 121.29 hrs, Volume= 0.470 af, Depth= 6.96" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4 Area (ac) CN Adj Description * 0.810 94 98 Weighted 0.810 Weighted Average 0.810 94 98 100.00% Pervious Area, AMC Adjusted Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 9.0 Direct Entry, Subcatchment 72S: 6_Temp Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.17 0.16 0.15 0.14 0.13 0.12 0.11 0.1 0.09 0.08 0.07 0.06 0.05 0.04 0.03 0.02 0.01 0 MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20" AMC=4 Runoff Area=0.810 ac Runoff Volume=0.470 af Runoff Depth=6.96" Tc=9.0 min AMC Adjusted CN=98 0.15 cfs MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4Avienda - Existing Printed 8/3/2018Prepared by LANDFORM Page 126HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 73S: N68 Runoff = 0.45 cfs @ 121.26 hrs, Volume= 1.369 af, Depth= 6.96" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4 Area (ac) CN Description * 2.360 98 Weighted 2.360 98 100.00% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 7.0 Direct Entry, Subcatchment 73S: N68 Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.5 0.48 0.46 0.44 0.42 0.4 0.38 0.36 0.34 0.32 0.3 0.28 0.26 0.24 0.22 0.2 0.18 0.16 0.14 0.12 0.1 0.08 0.06 0.04 0.02 0 MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20" AMC=4 Runoff Area=2.360 ac Runoff Volume=1.369 af Runoff Depth=6.96" Tc=7.0 min CN=98 0.45 cfs MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4Avienda - Existing Printed 8/3/2018Prepared by LANDFORM Page 127HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 74S: 5_Temp Runoff = 0.19 cfs @ 121.29 hrs, Volume= 0.592 af, Depth= 6.96" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4 Area (ac) CN Adj Description * 1.020 90 98 1.020 Weighted Average 1.020 90 98 100.00% Pervious Area, AMC Adjusted Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 9.0 Direct Entry, Subcatchment 74S: 5_Temp Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.21 0.2 0.19 0.18 0.17 0.16 0.15 0.14 0.13 0.12 0.11 0.1 0.09 0.08 0.07 0.06 0.05 0.04 0.03 0.02 0.01 0 MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20" AMC=4 Runoff Area=1.020 ac Runoff Volume=0.592 af Runoff Depth=6.96" Tc=9.0 min AMC Adjusted CN=98 0.19 cfs MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4Avienda - Existing Printed 8/3/2018Prepared by LANDFORM Page 128HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 75S: 3225 Runoff = 0.58 cfs @ 121.26 hrs, Volume= 1.746 af, Depth= 6.96" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4 Area (ac) CN Description * 3.010 98 Weighted 3.010 98 100.00% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 7.0 Direct Entry, Subcatchment 75S: 3225 Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.6 0.55 0.5 0.45 0.4 0.35 0.3 0.25 0.2 0.15 0.1 0.05 0 MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20" AMC=4 Runoff Area=3.010 ac Runoff Volume=1.746 af Runoff Depth=6.96" Tc=7.0 min CN=98 0.58 cfs MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4Avienda - Existing Printed 8/3/2018Prepared by LANDFORM Page 129HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 76S: 3236 Runoff = 1.58 cfs @ 121.35 hrs, Volume= 4.820 af, Depth= 6.96" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4 Area (ac) CN Adj Description * 8.310 80 98 Weighted 8.310 Weighted Average 8.310 80 98 100.00% Pervious Area, AMC Adjusted Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 14.0 Direct Entry, Subcatchment 76S: 3236 Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)1 0 MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20" AMC=4 Runoff Area=8.310 ac Runoff Volume=4.820 af Runoff Depth=6.96" Tc=14.0 min AMC Adjusted CN=98 1.58 cfs MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4Avienda - Existing Printed 8/3/2018Prepared by LANDFORM Page 130HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 77S: 3238 Runoff = 0.18 cfs @ 121.26 hrs, Volume= 0.551 af, Depth= 6.96" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4 Area (ac) CN Adj Description * 0.950 83 98 Weighted 0.950 Weighted Average 0.950 83 98 100.00% Pervious Area, AMC Adjusted Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 7.0 Direct Entry, Subcatchment 77S: 3238 Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.2 0.19 0.18 0.17 0.16 0.15 0.14 0.13 0.12 0.11 0.1 0.09 0.08 0.07 0.06 0.05 0.04 0.03 0.02 0.01 0 MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20" AMC=4 Runoff Area=0.950 ac Runoff Volume=0.551 af Runoff Depth=6.96" Tc=7.0 min AMC Adjusted CN=98 0.18 cfs MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4Avienda - Existing Printed 8/3/2018Prepared by LANDFORM Page 131HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 78S: 3243 Runoff = 0.12 cfs @ 121.26 hrs, Volume= 0.365 af, Depth= 6.96" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4 Area (ac) CN Adj Description * 0.630 91 98 Weighted 0.630 Weighted Average 0.630 91 98 100.00% Pervious Area, AMC Adjusted Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 7.0 Direct Entry, Subcatchment 78S: 3243 Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.13 0.12 0.11 0.1 0.09 0.08 0.07 0.06 0.05 0.04 0.03 0.02 0.01 0 MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20" AMC=4 Runoff Area=0.630 ac Runoff Volume=0.365 af Runoff Depth=6.96" Tc=7.0 min AMC Adjusted CN=98 0.12 cfs MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4Avienda - Existing Printed 8/3/2018Prepared by LANDFORM Page 132HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 79S: 3245 Runoff = 0.39 cfs @ 121.26 hrs, Volume= 1.189 af, Depth= 6.96" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4 Area (ac) CN Description * 2.050 98 Weighted 2.050 98 100.00% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 7.0 Direct Entry, Subcatchment 79S: 3245 Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.42 0.4 0.38 0.36 0.34 0.32 0.3 0.28 0.26 0.24 0.22 0.2 0.18 0.16 0.14 0.12 0.1 0.08 0.06 0.04 0.02 0 MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20" AMC=4 Runoff Area=2.050 ac Runoff Volume=1.189 af Runoff Depth=6.96" Tc=7.0 min CN=98 0.39 cfs MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4Avienda - Existing Printed 8/3/2018Prepared by LANDFORM Page 133HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 80S: 3250 Runoff = 0.07 cfs @ 121.26 hrs, Volume= 0.203 af, Depth= 6.96" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4 Area (ac) CN Adj Description * 0.350 90 98 Weighted 0.350 Weighted Average 0.350 90 98 100.00% Pervious Area, AMC Adjusted Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 7.0 Direct Entry, Subcatchment 80S: 3250 Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.07 0.065 0.06 0.055 0.05 0.045 0.04 0.035 0.03 0.025 0.02 0.015 0.01 0.005 0 MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20" AMC=4 Runoff Area=0.350 ac Runoff Volume=0.203 af Runoff Depth=6.96" Tc=7.0 min AMC Adjusted CN=98 0.07 cfs MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4Avienda - Existing Printed 8/3/2018Prepared by LANDFORM Page 134HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 81S: 3343 Runoff = 1.13 cfs @ 121.41 hrs, Volume= 3.451 af, Depth= 6.96" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4 Area (ac) CN Adj Description * 5.950 76 98 Weighted 5.950 Weighted Average 5.950 76 98 100.00% Pervious Area, AMC Adjusted Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 19.0 Direct Entry, Subcatchment 81S: 3343 Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)1 0 MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20" AMC=4 Runoff Area=5.950 ac Runoff Volume=3.451 af Runoff Depth=6.96" Tc=19.0 min AMC Adjusted CN=98 1.13 cfs MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4Avienda - Existing Printed 8/3/2018Prepared by LANDFORM Page 135HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 82S: 3345 Runoff = 0.28 cfs @ 121.26 hrs, Volume= 0.858 af, Depth= 6.96" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4 Area (ac) CN Adj Description * 1.480 78 98 Weighted 1.480 Weighted Average 1.480 78 98 100.00% Pervious Area, AMC Adjusted Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 7.0 Direct Entry, Subcatchment 82S: 3345 Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.3 0.28 0.26 0.24 0.22 0.2 0.18 0.16 0.14 0.12 0.1 0.08 0.06 0.04 0.02 0 MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20" AMC=4 Runoff Area=1.480 ac Runoff Volume=0.858 af Runoff Depth=6.96" Tc=7.0 min AMC Adjusted CN=98 0.28 cfs MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4Avienda - Existing Printed 8/3/2018Prepared by LANDFORM Page 136HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 83S: 3348 Runoff = 0.13 cfs @ 121.26 hrs, Volume= 0.406 af, Depth= 6.96" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4 Area (ac) CN Adj Description * 0.700 87 98 Weighted 0.700 Weighted Average 0.700 87 98 100.00% Pervious Area, AMC Adjusted Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 7.0 Direct Entry, Subcatchment 83S: 3348 Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.14 0.13 0.12 0.11 0.1 0.09 0.08 0.07 0.06 0.05 0.04 0.03 0.02 0.01 0 MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20" AMC=4 Runoff Area=0.700 ac Runoff Volume=0.406 af Runoff Depth=6.96" Tc=7.0 min AMC Adjusted CN=98 0.13 cfs MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4Avienda - Existing Printed 8/3/2018Prepared by LANDFORM Page 137HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 84S: SE12 Runoff = 0.40 cfs @ 121.31 hrs, Volume= 1.218 af, Depth= 6.96" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4 Area (ac) CN Adj Description * 2.100 79 98 Weighted 2.100 Weighted Average 2.100 79 98 100.00% Pervious Area, AMC Adjusted Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 11.0 Direct Entry, Subcatchment 84S: SE12 Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.44 0.42 0.4 0.38 0.36 0.34 0.32 0.3 0.28 0.26 0.24 0.22 0.2 0.18 0.16 0.14 0.12 0.1 0.08 0.06 0.04 0.02 0 MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20" AMC=4 Runoff Area=2.100 ac Runoff Volume=1.218 af Runoff Depth=6.96" Tc=11.0 min AMC Adjusted CN=98 0.40 cfs MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4Avienda - Existing Printed 8/3/2018Prepared by LANDFORM Page 138HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 85S: 1S Runoff = 0.86 cfs @ 121.35 hrs, Volume= 2.628 af, Depth= 6.96" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4 Area (ac) CN Adj Description * 4.530 69 98 Weighted 4.530 Weighted Average 4.530 69 98 100.00% Pervious Area, AMC Adjusted Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 15.0 Direct Entry, Subcatchment 85S: 1S Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.95 0.9 0.85 0.8 0.75 0.7 0.65 0.6 0.55 0.5 0.45 0.4 0.35 0.3 0.25 0.2 0.15 0.1 0.05 0 MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20" AMC=4 Runoff Area=4.530 ac Runoff Volume=2.628 af Runoff Depth=6.96" Tc=15.0 min AMC Adjusted CN=98 0.86 cfs MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4Avienda - Existing Printed 8/3/2018Prepared by LANDFORM Page 139HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 86S: 2S Runoff = 1.10 cfs @ 121.47 hrs, Volume= 3.364 af, Depth= 6.96" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4 Area (ac) CN Adj Description * 5.800 69 98 Weighted 5.800 Weighted Average 5.800 69 98 100.00% Pervious Area, AMC Adjusted Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 25.0 Direct Entry, Subcatchment 86S: 2S Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)1 0 MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20" AMC=4 Runoff Area=5.800 ac Runoff Volume=3.364 af Runoff Depth=6.96" Tc=25.0 min AMC Adjusted CN=98 1.10 cfs MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4Avienda - Existing Printed 8/3/2018Prepared by LANDFORM Page 140HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 87S: M9 Runoff = 4.10 cfs @ 121.51 hrs, Volume= 12.551 af, Depth= 6.96" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4 Area (ac) CN Adj Description * 21.638 76 98 Weighted 21.638 Weighted Average 21.638 76 98 100.00% Pervious Area, AMC Adjusted Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 29.0 Direct Entry, Subcatchment 87S: M9 Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)4 3 2 1 0 MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20" AMC=4 Runoff Area=21.638 ac Runoff Volume=12.551 af Runoff Depth=6.96" Tc=29.0 min AMC Adjusted CN=98 4.10 cfs MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4Avienda - Existing Printed 8/3/2018Prepared by LANDFORM Page 141HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Reach 8R: South Drainage [40] Hint: Not Described (Outflow=Inflow) Inflow Area = 48.462 ac, 0.00% Impervious, Inflow Depth = 6.96" for 10 day snowmelt event Inflow = 9.19 cfs @ 121.39 hrs, Volume= 28.111 af Outflow = 9.19 cfs @ 121.39 hrs, Volume= 28.111 af, Atten= 0%, Lag= 0.0 min Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Reach 8R: South Drainage Inflow Outflow Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)10 9 8 7 6 5 4 3 2 1 0 Inflow Area=48.462 ac 9.19 cfs 9.19 cfs MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4Avienda - Existing Printed 8/3/2018Prepared by LANDFORM Page 142HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Reach 9R: Wetland 4 Channel [40] Hint: Not Described (Outflow=Inflow) Inflow Area = 31.882 ac, 0.00% Impervious, Inflow Depth = 6.96" for 10 day snowmelt event Inflow = 6.04 cfs @ 121.45 hrs, Volume= 18.493 af Outflow = 6.04 cfs @ 121.45 hrs, Volume= 18.493 af, Atten= 0%, Lag= 0.0 min Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Reach 9R: Wetland 4 Channel Inflow Outflow Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)6 5 4 3 2 1 0 Inflow Area=31.882 ac 6.04 cfs 6.04 cfs MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4Avienda - Existing Printed 8/3/2018Prepared by LANDFORM Page 143HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Reach 72R: N68 [52] Hint: Inlet/Outlet conditions not evaluated Inflow Area = 4.190 ac, 56.32% Impervious, Inflow Depth = 6.96" for 10 day snowmelt event Inflow = 0.80 cfs @ 121.27 hrs, Volume= 2.430 af Outflow = 0.80 cfs @ 121.28 hrs, Volume= 2.430 af, Atten= 0%, Lag= 0.5 min Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Max. Velocity= 3.23 fps, Min. Travel Time= 0.3 min Avg. Velocity = 1.77 fps, Avg. Travel Time= 0.6 min Peak Storage= 16 cf @ 121.28 hrs Average Depth at Peak Storage= 0.27' Bank-Full Depth= 2.00' Flow Area= 3.1 sf, Capacity= 21.17 cfs 24.0" Round Pipe n= 0.012 Length= 63.0' Slope= 0.0075 '/' Inlet Invert= 872.00', Outlet Invert= 871.53' Reach 72R: N68 Inflow Outflow Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.85 0.8 0.75 0.7 0.65 0.6 0.55 0.5 0.45 0.4 0.35 0.3 0.25 0.2 0.15 0.1 0.05 0 Inflow Area=4.190 ac Avg. Flow Depth=0.27' Max Vel=3.23 fps 24.0" Round Pipe n=0.012 L=63.0' S=0.0075 '/' Capacity=21.17 cfs 0.80 cfs 0.80 cfs MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4Avienda - Existing Printed 8/3/2018Prepared by LANDFORM Page 144HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Stage-Area-Storage for Reach 72R: N68 Elevation (feet) End-Area (sq-ft) Storage (cubic-feet) 872.00 0.0 0 872.02 0.0 0 872.04 0.0 1 872.06 0.0 2 872.08 0.0 3 872.10 0.1 4 872.12 0.1 5 872.14 0.1 6 872.16 0.1 7 872.18 0.1 9 872.20 0.2 10 872.22 0.2 12 872.24 0.2 13 872.26 0.2 15 872.28 0.3 17 872.30 0.3 19 872.32 0.3 20 872.34 0.4 22 872.36 0.4 24 872.38 0.4 26 872.40 0.4 28 872.42 0.5 30 872.44 0.5 32 872.46 0.5 34 872.48 0.6 37 872.50 0.6 39 872.52 0.6 41 872.54 0.7 43 872.56 0.7 45 872.58 0.8 48 872.60 0.8 50 872.62 0.8 52 872.64 0.9 55 872.66 0.9 57 872.68 0.9 59 872.70 1.0 62 872.72 1.0 64 872.74 1.1 67 872.76 1.1 69 872.78 1.1 71 872.80 1.2 74 872.82 1.2 76 872.84 1.3 79 872.86 1.3 81 872.88 1.3 84 872.90 1.4 86 872.92 1.4 89 872.94 1.5 91 872.96 1.5 94 872.98 1.5 96 873.00 1.6 99 873.02 1.6 101 Elevation (feet) End-Area (sq-ft) Storage (cubic-feet) 873.04 1.7 104 873.06 1.7 107 873.08 1.7 109 873.10 1.8 112 873.12 1.8 114 873.14 1.8 117 873.16 1.9 119 873.18 1.9 122 873.20 2.0 124 873.22 2.0 126 873.24 2.0 129 873.26 2.1 131 873.28 2.1 134 873.30 2.2 136 873.32 2.2 139 873.34 2.2 141 873.36 2.3 143 873.38 2.3 146 873.40 2.3 148 873.42 2.4 150 873.44 2.4 153 873.46 2.5 155 873.48 2.5 157 873.50 2.5 159 873.52 2.6 161 873.54 2.6 164 873.56 2.6 166 873.58 2.7 168 873.60 2.7 170 873.62 2.7 172 873.64 2.8 174 873.66 2.8 176 873.68 2.8 177 873.70 2.8 179 873.72 2.9 181 873.74 2.9 183 873.76 2.9 184 873.78 3.0 186 873.80 3.0 188 873.82 3.0 189 873.84 3.0 191 873.86 3.0 192 873.88 3.1 193 873.90 3.1 194 873.92 3.1 195 873.94 3.1 196 873.96 3.1 197 873.98 3.1 198 874.00 3.1 198 MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4Avienda - Existing Printed 8/3/2018Prepared by LANDFORM Page 145HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Pond 8P: Wetland 4 Inflow Area = 29.862 ac, 0.00% Impervious, Inflow Depth = 6.96" for 10 day snowmelt event Inflow = 5.66 cfs @ 121.44 hrs, Volume= 17.322 af Outflow = 5.66 cfs @ 121.45 hrs, Volume= 17.321 af, Atten= 0%, Lag= 0.6 min Primary = 5.66 cfs @ 121.45 hrs, Volume= 17.321 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 884.37' @ 121.45 hrs Surf.Area= 1,691 sf Storage= 473 cf Plug-Flow detention time= 3.8 min calculated for 17.321 af (100% of inflow) Center-of-Mass det. time= 3.5 min ( 7,402.5 - 7,399.1 ) Volume Invert Avail.Storage Storage Description #1 884.00' 37,633 cf Custom Stage Data (Prismatic) Listed below (Recalc) Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 884.00 870 0 0 884.50 1,980 713 713 885.00 3,500 1,370 2,083 886.00 7,800 5,650 7,733 887.00 14,000 10,900 18,633 888.00 24,000 19,000 37,633 Device Routing Invert Outlet Devices #1 Primary 884.03'Asymmetrical Weir, C= 3.27 Offset (feet) 0.00 51.00 133.60 176.00 217.30 239.00 Elev. (feet) 889.78 886.05 884.03 885.84 889.00 889.78 Primary OutFlow Max=5.66 cfs @ 121.45 hrs HW=884.37' TW=0.00' (Dynamic Tailwater) 1=Asymmetrical Weir (Weir Controls 5.66 cfs @ 0.76 fps) MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4Avienda - Existing Printed 8/3/2018Prepared by LANDFORM Page 146HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Pond 8P: Wetland 4 Inflow Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)6 5 4 3 2 1 0 Inflow Area=29.862 ac Peak Elev=884.37' Storage=473 cf 5.66 cfs 5.66 cfs MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4Avienda - Existing Printed 8/3/2018Prepared by LANDFORM Page 147HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Stage-Area-Storage for Pond 8P: Wetland 4 Elevation (feet) Surface (sq-ft) Storage (cubic-feet) 884.00 870 0 884.10 1,092 98 884.20 1,314 218 884.30 1,536 361 884.40 1,758 526 884.50 1,980 713 884.60 2,284 926 884.70 2,588 1,169 884.80 2,892 1,443 884.90 3,196 1,748 885.00 3,500 2,083 885.10 3,930 2,454 885.20 4,360 2,869 885.30 4,790 3,326 885.40 5,220 3,826 885.50 5,650 4,370 885.60 6,080 4,957 885.70 6,510 5,586 885.80 6,940 6,258 885.90 7,370 6,974 886.00 7,800 7,733 886.10 8,420 8,544 886.20 9,040 9,417 886.30 9,660 10,351 886.40 10,280 11,348 886.50 10,900 12,408 886.60 11,520 13,529 886.70 12,140 14,712 886.80 12,760 15,956 886.90 13,380 17,263 887.00 14,000 18,633 887.10 15,000 20,083 887.20 16,000 21,633 887.30 17,000 23,282 887.40 18,000 25,032 887.50 19,000 26,883 887.60 20,000 28,833 887.70 21,000 30,883 887.80 22,000 33,032 887.90 23,000 35,282 888.00 24,000 37,633 888.10 24,000 37,633 888.20 24,000 37,633 888.30 24,000 37,633 888.40 24,000 37,633 888.50 24,000 37,633 888.60 24,000 37,633 888.70 24,000 37,633 888.80 24,000 37,633 888.90 24,000 37,633 889.00 24,000 37,633 889.10 24,000 37,633 Elevation (feet) Surface (sq-ft) Storage (cubic-feet) 889.20 24,000 37,633 889.30 24,000 37,633 889.40 24,000 37,633 889.50 24,000 37,633 889.60 24,000 37,633 889.70 24,000 37,633 MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4Avienda - Existing Printed 8/3/2018Prepared by LANDFORM Page 148HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Pond 71P: Interlachen [87] Warning: Oscillations may require smaller dt or Finer Routing (severity=19) [61] Hint: Exceeded Reach 72R outlet invert by 0.11' @ 135.40 hrs Inflow Area = 30.860 ac, 27.80% Impervious, Inflow Depth = 6.97" for 10 day snowmelt event Inflow = 5.88 cfs @ 121.28 hrs, Volume= 17.924 af Outflow = 4.35 cfs @ 121.68 hrs, Volume= 17.889 af, Atten= 26%, Lag= 23.5 min Primary = 4.35 cfs @ 121.68 hrs, Volume= 17.889 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 871.64' @ 135.40 hrs Surf.Area= 55,741 sf Storage= 87,396 cf Plug-Flow detention time= 842.0 min calculated for 17.889 af (100% of inflow) Center-of-Mass det. time= 828.2 min ( 8,207.6 - 7,379.4 ) Volume Invert Avail.Storage Storage Description #1 870.00' 381,460 cf Custom Stage Data (Prismatic) Listed below (Recalc) Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 870.00 50,570 0 0 872.00 56,860 107,430 107,430 875.00 74,330 196,785 304,215 876.00 80,160 77,245 381,460 Device Routing Invert Outlet Devices #1 Primary 870.00'24.0" Round Culvert L= 33.0' RCP, square edge headwall, Ke= 0.500 Inlet / Outlet Invert= 870.00' / 869.67' S= 0.0100 '/' Cc= 0.900 n= 0.012, Flow Area= 3.14 sf #2 Device 1 866.61'24.0" Round Culvert L= 21.0' RCP, end-section conforming to fill, Ke= 0.500 Inlet / Outlet Invert= 866.50' / 866.61' S= -0.0052 '/' Cc= 0.900 n= 0.012, Flow Area= 3.14 sf Primary OutFlow Max=4.34 cfs @ 121.68 hrs HW=871.42' TW=871.23' (Dynamic Tailwater) 1=Culvert (Outlet Controls 4.34 cfs @ 2.56 fps) 2=Culvert (Passes 4.34 cfs of 6.54 cfs potential flow) MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4Avienda - Existing Printed 8/3/2018Prepared by LANDFORM Page 149HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Pond 71P: Interlachen Inflow Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)6 5 4 3 2 1 0 Inflow Area=30.860 ac Peak Elev=871.64' Storage=87,396 cf 5.88 cfs 4.35 cfs MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4Avienda - Existing Printed 8/3/2018Prepared by LANDFORM Page 150HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Stage-Area-Storage for Pond 71P: Interlachen Elevation (feet) Surface (sq-ft) Storage (cubic-feet) 870.00 50,570 0 870.10 50,885 5,073 870.20 51,199 10,177 870.30 51,513 15,313 870.40 51,828 20,480 870.50 52,143 25,678 870.60 52,457 30,908 870.70 52,772 36,170 870.80 53,086 41,462 870.90 53,400 46,787 871.00 53,715 52,143 871.10 54,030 57,530 871.20 54,344 62,948 871.30 54,658 68,399 871.40 54,973 73,880 871.50 55,288 79,393 871.60 55,602 84,938 871.70 55,917 90,514 871.80 56,231 96,121 871.90 56,545 101,760 872.00 56,860 107,430 872.10 57,442 113,145 872.20 58,025 118,918 872.30 58,607 124,750 872.40 59,189 130,640 872.50 59,772 136,588 872.60 60,354 142,594 872.70 60,936 148,659 872.80 61,519 154,781 872.90 62,101 160,962 873.00 62,683 167,202 873.10 63,266 173,499 873.20 63,848 179,855 873.30 64,430 186,269 873.40 65,013 192,741 873.50 65,595 199,271 873.60 66,177 205,860 873.70 66,760 212,507 873.80 67,342 219,212 873.90 67,924 225,975 874.00 68,507 232,797 874.10 69,089 239,676 874.20 69,671 246,614 874.30 70,254 253,611 874.40 70,836 260,665 874.50 71,418 267,778 874.60 72,001 274,949 874.70 72,583 282,178 874.80 73,165 289,465 874.90 73,748 296,811 875.00 74,330 304,215 875.10 74,913 311,677 Elevation (feet) Surface (sq-ft) Storage (cubic-feet) 875.20 75,496 319,198 875.30 76,079 326,776 875.40 76,662 334,413 875.50 77,245 342,109 875.60 77,828 349,862 875.70 78,411 357,674 875.80 78,994 365,545 875.90 79,577 373,473 876.00 80,160 381,460 MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4Avienda - Existing Printed 8/3/2018Prepared by LANDFORM Page 151HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Pond 72P: South MNDOT M9 Wetland Inflow Area = 113.390 ac, 7.57% Impervious, Inflow Depth > 6.96" for 10 day snowmelt event Inflow = 19.96 cfs @ 121.45 hrs, Volume= 65.761 af Outflow = 4.83 cfs @ 135.91 hrs, Volume= 64.584 af, Atten= 76%, Lag= 867.9 min Primary = 4.83 cfs @ 135.91 hrs, Volume= 64.584 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 871.63' @ 135.91 hrs Surf.Area= 516,821 sf Storage= 941,531 cf Plug-Flow detention time= 2,717.1 min calculated for 64.582 af (98% of inflow) Center-of-Mass det. time= 2,578.3 min ( 10,196.9 - 7,618.6 ) Volume Invert Avail.Storage Storage Description #1 869.50' 2,891,990 cf Custom Stage Data (Prismatic) Listed below (Recalc) Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 869.50 214,970 0 0 870.00 433,070 162,010 162,010 871.00 489,600 461,335 623,345 872.00 532,650 511,125 1,134,470 875.00 639,030 1,757,520 2,891,990 Device Routing Invert Outlet Devices #1 Primary 869.00'18.0" Round Culvert L= 276.0' RCP, square edge headwall, Ke= 0.500 Inlet / Outlet Invert= 869.00' / 866.93' S= 0.0075 '/' Cc= 0.900 n= 0.013 Concrete pipe, straight & clean, Flow Area= 1.77 sf #2 Device 1 869.50'12.0" Vert. Orifice/Grate C= 0.600 #3 Device 2 869.36'18.0" Round Culvert L= 172.0' RCP, end-section conforming to fill, Ke= 0.500 Inlet / Outlet Invert= 868.50' / 869.36' S= -0.0050 '/' Cc= 0.900 n= 0.013 Concrete pipe, straight & clean, Flow Area= 1.77 sf Primary OutFlow Max=4.83 cfs @ 135.91 hrs HW=871.63' (Free Discharge) 1=Culvert (Passes 4.83 cfs of 9.92 cfs potential flow) 2=Orifice/Grate (Orifice Controls 4.83 cfs @ 6.15 fps) 3=Culvert (Passes 4.83 cfs of 8.41 cfs potential flow) MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4Avienda - Existing Printed 8/3/2018Prepared by LANDFORM Page 152HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Pond 72P: South MNDOT M9 Wetland Inflow Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 Inflow Area=113.390 ac Peak Elev=871.63' Storage=941,531 cf 19.96 cfs 4.83 cfs MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4Avienda - Existing Printed 8/3/2018Prepared by LANDFORM Page 153HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Stage-Area-Storage for Pond 72P: South MNDOT M9 Wetland Elevation (feet) Surface (sq-ft) Storage (cubic-feet) 869.50 214,970 0 869.60 258,590 23,678 869.70 302,210 51,718 869.80 345,830 84,120 869.90 389,450 120,884 870.00 433,070 162,010 870.10 438,723 205,600 870.20 444,376 249,755 870.30 450,029 294,475 870.40 455,682 339,760 870.50 461,335 385,611 870.60 466,988 432,027 870.70 472,641 479,009 870.80 478,294 526,556 870.90 483,947 574,668 871.00 489,600 623,345 871.10 493,905 672,520 871.20 498,210 722,126 871.30 502,515 772,162 871.40 506,820 822,629 871.50 511,125 873,526 871.60 515,430 924,854 871.70 519,735 976,612 871.80 524,040 1,028,801 871.90 528,345 1,081,420 872.00 532,650 1,134,470 872.10 536,196 1,187,912 872.20 539,742 1,241,709 872.30 543,288 1,295,861 872.40 546,834 1,350,367 872.50 550,380 1,405,228 872.60 553,926 1,460,443 872.70 557,472 1,516,013 872.80 561,018 1,571,937 872.90 564,564 1,628,216 873.00 568,110 1,684,850 873.10 571,656 1,741,838 873.20 575,202 1,799,181 873.30 578,748 1,856,879 873.40 582,294 1,914,931 873.50 585,840 1,973,338 873.60 589,386 2,032,099 873.70 592,932 2,091,215 873.80 596,478 2,150,685 873.90 600,024 2,210,510 874.00 603,570 2,270,690 874.10 607,116 2,331,224 874.20 610,662 2,392,113 874.30 614,208 2,453,357 874.40 617,754 2,514,955 874.50 621,300 2,576,908 874.60 624,846 2,639,215 Elevation (feet) Surface (sq-ft) Storage (cubic-feet) 874.70 628,392 2,701,877 874.80 631,938 2,764,893 874.90 635,484 2,828,264 875.00 639,030 2,891,990 MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda - Existing Printed 8/3/2018Prepared by LANDFORM Page 154HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Time span=0.00-360.00 hrs, dt=0.01 hrs, 36001 points Runoff by SCS TR-20 method, UH=SCS, Weighted-Q Reach routing by Dyn-Stor-Ind method - Pond routing by Dyn-Stor-Ind method Runoff Area=1,300,770 sf 0.00% Impervious Runoff Depth=1.61"Subcatchment 8S: South - Central to Flow Length=1,321' Tc=24.5 min CN=WQ Runoff=43.91 cfs 4.014 af Runoff Area=140,359 sf 0.00% Impervious Runoff Depth=0.64"Subcatchment 9.1S: East Woods Flow Length=530' Tc=15.2 min CN=55 Runoff=1.73 cfs 0.172 af Runoff Area=88,007 sf 0.00% Impervious Runoff Depth=0.84"Subcatchment 9.2S: Northeast Woods Flow Length=623' Tc=19.5 min CN=WQ Runoff=1.43 cfs 0.141 af Runoff Area=258,057 sf 0.00% Impervious Runoff Depth=2.18"Subcatchment 9.3S: South Flow Length=550' Tc=10.3 min CN=WQ Runoff=19.06 cfs 1.076 af Runoff Area=323,827 sf 0.00% Impervious Runoff Depth=2.16"Subcatchment 9.4S: Southeast Flow Length=912' Tc=16.5 min CN=WQ Runoff=18.93 cfs 1.338 af Runoff Area=2.080 ac 0.00% Impervious Runoff Depth=2.61"Subcatchment 71-1S: Interlacn Subcatch 1 Tc=7.0 min CN=84 Runoff=9.39 cfs 0.452 af Runoff Area=1.160 ac 100.00% Impervious Runoff Depth=4.27"Subcatchment 71-2S: Interlacn Subcatch 2 Tc=7.0 min CN=100 Runoff=7.24 cfs 0.413 af Runoff Area=0.810 ac 0.00% Impervious Runoff Depth=3.59"Subcatchment 72S: 6_Temp Tc=9.0 min CN=94 Runoff=4.32 cfs 0.242 af Runoff Area=2.360 ac 100.00% Impervious Runoff Depth=4.03"Subcatchment 73S: N68 Tc=7.0 min CN=98 Runoff=14.62 cfs 0.793 af Runoff Area=1.020 ac 0.00% Impervious Runoff Depth=3.18"Subcatchment 74S: 5_Temp Tc=9.0 min CN=90 Runoff=4.98 cfs 0.270 af Runoff Area=3.010 ac 100.00% Impervious Runoff Depth=4.03"Subcatchment 75S: 3225 Tc=7.0 min CN=98 Runoff=18.64 cfs 1.012 af Runoff Area=8.310 ac 0.00% Impervious Runoff Depth=2.27"Subcatchment 76S: 3236 Tc=14.0 min CN=80 Runoff=24.12 cfs 1.570 af Runoff Area=0.950 ac 0.00% Impervious Runoff Depth=2.52"Subcatchment 77S: 3238 Tc=7.0 min CN=83 Runoff=4.15 cfs 0.200 af Runoff Area=0.630 ac 0.00% Impervious Runoff Depth=3.28"Subcatchment 78S: 3243 Tc=7.0 min CN=91 Runoff=3.47 cfs 0.172 af Runoff Area=2.050 ac 100.00% Impervious Runoff Depth=4.03"Subcatchment 79S: 3245 Tc=7.0 min CN=98 Runoff=12.70 cfs 0.689 af Runoff Area=0.350 ac 0.00% Impervious Runoff Depth=3.18"Subcatchment 80S: 3250 Tc=7.0 min CN=90 Runoff=1.88 cfs 0.093 af MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda - Existing Printed 8/3/2018Prepared by LANDFORM Page 155HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Runoff Area=5.950 ac 0.00% Impervious Runoff Depth=1.95"Subcatchment 81S: 3343 Tc=19.0 min CN=76 Runoff=12.62 cfs 0.966 af Runoff Area=1.480 ac 0.00% Impervious Runoff Depth=2.10"Subcatchment 82S: 3345 Tc=7.0 min CN=78 Runoff=5.38 cfs 0.260 af Runoff Area=0.700 ac 0.00% Impervious Runoff Depth=2.89"Subcatchment 83S: 3348 Tc=7.0 min CN=87 Runoff=3.47 cfs 0.168 af Runoff Area=2.100 ac 0.00% Impervious Runoff Depth=2.18"Subcatchment 84S: SE12 Tc=11.0 min CN=79 Runoff=6.58 cfs 0.382 af Runoff Area=4.530 ac 0.00% Impervious Runoff Depth=1.45"Subcatchment 85S: 1S Tc=15.0 min CN=69 Runoff=7.68 cfs 0.546 af Runoff Area=5.800 ac 0.00% Impervious Runoff Depth=1.45"Subcatchment 86S: 2S Tc=25.0 min CN=69 Runoff=7.59 cfs 0.699 af Runoff Area=21.638 ac 0.00% Impervious Runoff Depth=1.95"Subcatchment 87S: M9 Tc=29.0 min CN=76 Runoff=36.74 cfs 3.512 af Inflow=72.88 cfs 6.741 afReach 8R: South Drainage Outflow=72.88 cfs 6.741 af Inflow=45.29 cfs 4.154 afReach 9R: Wetland 4 Channel Outflow=45.29 cfs 4.154 af Avg. Flow Depth=2.00' Max Vel=7.68 fps Inflow=23.56 cfs 1.306 afReach 72R: N68 24.0" Round Pipe n=0.012 L=63.0' S=0.0075 '/' Capacity=21.17 cfs Outflow=22.07 cfs 1.306 af Peak Elev=884.80' Storage=1,446 cf Inflow=43.91 cfs 4.014 afPond 8P: Wetland 4 Outflow=43.89 cfs 4.013 af Peak Elev=872.91' Storage=161,551 cf Inflow=110.95 cfs 7.300 afPond 71P: Interlachen Outflow=20.63 cfs 7.288 af Peak Elev=871.06' Storage=653,953 cf Inflow=141.71 cfs 19.168 afPond 72P: South MNDOT M9 Wetland Outflow=3.90 cfs 18.857 af Total Runoff Area = 113.390 ac Runoff Volume = 19.181 af Average Runoff Depth = 2.03" 92.43% Pervious = 104.810 ac 7.57% Impervious = 8.580 ac MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda - Existing Printed 8/3/2018Prepared by LANDFORM Page 156HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 8S: South - Central to Wetland 4 Runoff = 43.91 cfs @ 12.34 hrs, Volume= 4.014 af, Depth= 1.61" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Area (sf) CN Description * 15,505 79 Wetland 5, Pasture/grassland/range, Poor, HSG B 21,030 55 Woods, Good, HSG B 185,110 79 Pasture/grassland/range, Poor, HSG B 460,890 55 Woods, Good, HSG B 618,235 79 Pasture/grassland/range, Poor, HSG B 1,300,770 Weighted Average 1,300,770 70 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 7.8 100 0.0300 0.21 Sheet Flow, Range n= 0.130 P2= 2.87" 15.2 1,028 0.0260 1.13 Shallow Concentrated Flow, Short Grass Pasture Kv= 7.0 fps 1.5 193 0.0200 2.12 Shallow Concentrated Flow, Wetland Grassed Waterway Kv= 15.0 fps 24.5 1,321 Total Subcatchment 8S: South - Central to Wetland 4 Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)48 46 44 42 40 38 36 34 32 30 28 26 24 22 20 18 16 14 12 10 8 6 4 2 0 MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Runoff Area=1,300,770 sf Runoff Volume=4.014 af Runoff Depth=1.61" Flow Length=1,321' Tc=24.5 min CN=WQ 43.91 cfs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda - Existing Printed 8/3/2018Prepared by LANDFORM Page 157HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 9.1S: East Woods Runoff = 1.73 cfs @ 12.27 hrs, Volume= 0.172 af, Depth= 0.64" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Area (sf) CN Description 140,359 55 Woods, Good, HSG B 140,359 55 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 11.1 75 0.0670 0.11 Sheet Flow, Woods: Light underbrush n= 0.400 P2= 2.87" 4.1 455 0.1380 1.86 Shallow Concentrated Flow, Woodland Kv= 5.0 fps 15.2 530 Total Subcatchment 9.1S: East Woods Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)1 0 MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Runoff Area=140,359 sf Runoff Volume=0.172 af Runoff Depth=0.64" Flow Length=530' Tc=15.2 min CN=55 1.73 cfs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda - Existing Printed 8/3/2018Prepared by LANDFORM Page 158HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 9.2S: Northeast Woods Runoff = 1.43 cfs @ 12.32 hrs, Volume= 0.141 af, Depth= 0.84" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Area (sf) CN Description 76,845 55 Woods, Good, HSG B 11,162 79 Pasture/grassland/range, Poor, HSG B 88,007 Weighted Average 88,007 58 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 14.2 100 0.0650 0.12 Sheet Flow, Woods: Light underbrush n= 0.400 P2= 2.87" 5.3 523 0.1080 1.64 Shallow Concentrated Flow, Woodland Kv= 5.0 fps 19.5 623 Total Subcatchment 9.2S: Northeast Woods Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)1 0 MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Runoff Area=88,007 sf Runoff Volume=0.141 af Runoff Depth=0.84" Flow Length=623' Tc=19.5 min CN=WQ 1.43 cfs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda - Existing Printed 8/3/2018Prepared by LANDFORM Page 159HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 9.3S: South Runoff = 19.06 cfs @ 12.14 hrs, Volume= 1.076 af, Depth= 2.18" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Area (sf) CN Description 3,690 55 Woods, Good, HSG B 246,824 79 Pasture/grassland/range, Poor, HSG B 7,543 86 Pasture/grassland/range, Poor, HSG C 258,057 Weighted Average 258,057 79 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 6.5 90 0.0390 0.23 Sheet Flow, Range n= 0.130 P2= 2.87" 3.8 460 0.0850 2.04 Shallow Concentrated Flow, Short Grass Pasture Kv= 7.0 fps 10.3 550 Total Subcatchment 9.3S: South Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Runoff Area=258,057 sf Runoff Volume=1.076 af Runoff Depth=2.18" Flow Length=550' Tc=10.3 min CN=WQ 19.06 cfs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda - Existing Printed 8/3/2018Prepared by LANDFORM Page 160HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 9.4S: Southeast Runoff = 18.93 cfs @ 12.23 hrs, Volume= 1.338 af, Depth= 2.16" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Area (sf) CN Description 4,560 55 Woods, Good, HSG B 2,090 58 Meadow, non-grazed, HSG B 313,772 79 Pasture/grassland/range, Poor, HSG B 3,405 86 Pasture/grassland/range, Poor, HSG C 323,827 Weighted Average 323,827 79 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 6.0 55 0.0180 0.15 Sheet Flow, Range n= 0.130 P2= 2.87" 10.5 857 0.0380 1.36 Shallow Concentrated Flow, Short Grass Pasture Kv= 7.0 fps 16.5 912 Total Subcatchment 9.4S: Southeast Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Runoff Area=323,827 sf Runoff Volume=1.338 af Runoff Depth=2.16" Flow Length=912' Tc=16.5 min CN=WQ 18.93 cfs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda - Existing Printed 8/3/2018Prepared by LANDFORM Page 161HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 71-1S: Interlacn Subcatch 1 Runoff = 9.39 cfs @ 12.10 hrs, Volume= 0.452 af, Depth= 2.61" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Area (ac) CN Description * 2.080 84 Weoghted 2.080 84 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 7.0 Direct Entry, Subcatchment 71-1S: Interlacn Subcatch 1 Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)10 9 8 7 6 5 4 3 2 1 0 MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Runoff Area=2.080 ac Runoff Volume=0.452 af Runoff Depth=2.61" Tc=7.0 min CN=84 9.39 cfs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda - Existing Printed 8/3/2018Prepared by LANDFORM Page 162HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 71-2S: Interlacn Subcatch 2 Runoff = 7.24 cfs @ 12.09 hrs, Volume= 0.413 af, Depth= 4.27" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Area (ac) CN Description * 1.160 100 1.160 100 100.00% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 7.0 Direct Entry, Subcatchment 71-2S: Interlacn Subcatch 2 Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)8 7 6 5 4 3 2 1 0 MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Runoff Area=1.160 ac Runoff Volume=0.413 af Runoff Depth=4.27" Tc=7.0 min CN=100 7.24 cfs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda - Existing Printed 8/3/2018Prepared by LANDFORM Page 163HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 72S: 6_Temp Runoff = 4.32 cfs @ 12.12 hrs, Volume= 0.242 af, Depth= 3.59" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Area (ac) CN Description * 0.810 94 Weighted 0.810 94 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 9.0 Direct Entry, Subcatchment 72S: 6_Temp Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)4 3 2 1 0 MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Runoff Area=0.810 ac Runoff Volume=0.242 af Runoff Depth=3.59" Tc=9.0 min CN=94 4.32 cfs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda - Existing Printed 8/3/2018Prepared by LANDFORM Page 164HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 73S: N68 Runoff = 14.62 cfs @ 12.09 hrs, Volume= 0.793 af, Depth= 4.03" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Area (ac) CN Description * 2.360 98 Weighted 2.360 98 100.00% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 7.0 Direct Entry, Subcatchment 73S: N68 Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Runoff Area=2.360 ac Runoff Volume=0.793 af Runoff Depth=4.03" Tc=7.0 min CN=98 14.62 cfs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda - Existing Printed 8/3/2018Prepared by LANDFORM Page 165HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 74S: 5_Temp Runoff = 4.98 cfs @ 12.12 hrs, Volume= 0.270 af, Depth= 3.18" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Area (ac) CN Description * 1.020 90 1.020 90 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 9.0 Direct Entry, Subcatchment 74S: 5_Temp Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)5 4 3 2 1 0 MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Runoff Area=1.020 ac Runoff Volume=0.270 af Runoff Depth=3.18" Tc=9.0 min CN=90 4.98 cfs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda - Existing Printed 8/3/2018Prepared by LANDFORM Page 166HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 75S: 3225 Runoff = 18.64 cfs @ 12.09 hrs, Volume= 1.012 af, Depth= 4.03" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Area (ac) CN Description * 3.010 98 Weighted 3.010 98 100.00% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 7.0 Direct Entry, Subcatchment 75S: 3225 Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Runoff Area=3.010 ac Runoff Volume=1.012 af Runoff Depth=4.03" Tc=7.0 min CN=98 18.64 cfs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda - Existing Printed 8/3/2018Prepared by LANDFORM Page 167HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 76S: 3236 Runoff = 24.12 cfs @ 12.19 hrs, Volume= 1.570 af, Depth= 2.27" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Area (ac) CN Description * 8.310 80 Weighted 8.310 80 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 14.0 Direct Entry, Subcatchment 76S: 3236 Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)26 24 22 20 18 16 14 12 10 8 6 4 2 0 MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Runoff Area=8.310 ac Runoff Volume=1.570 af Runoff Depth=2.27" Tc=14.0 min CN=80 24.12 cfs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda - Existing Printed 8/3/2018Prepared by LANDFORM Page 168HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 77S: 3238 Runoff = 4.15 cfs @ 12.10 hrs, Volume= 0.200 af, Depth= 2.52" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Area (ac) CN Description * 0.950 83 Weighted 0.950 83 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 7.0 Direct Entry, Subcatchment 77S: 3238 Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)4 3 2 1 0 MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Runoff Area=0.950 ac Runoff Volume=0.200 af Runoff Depth=2.52" Tc=7.0 min CN=83 4.15 cfs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda - Existing Printed 8/3/2018Prepared by LANDFORM Page 169HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 78S: 3243 Runoff = 3.47 cfs @ 12.10 hrs, Volume= 0.172 af, Depth= 3.28" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Area (ac) CN Description * 0.630 91 Weighted 0.630 91 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 7.0 Direct Entry, Subcatchment 78S: 3243 Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)3 2 1 0 MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Runoff Area=0.630 ac Runoff Volume=0.172 af Runoff Depth=3.28" Tc=7.0 min CN=91 3.47 cfs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda - Existing Printed 8/3/2018Prepared by LANDFORM Page 170HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 79S: 3245 Runoff = 12.70 cfs @ 12.09 hrs, Volume= 0.689 af, Depth= 4.03" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Area (ac) CN Description * 2.050 98 Weighted 2.050 98 100.00% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 7.0 Direct Entry, Subcatchment 79S: 3245 Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Runoff Area=2.050 ac Runoff Volume=0.689 af Runoff Depth=4.03" Tc=7.0 min CN=98 12.70 cfs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda - Existing Printed 8/3/2018Prepared by LANDFORM Page 171HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 80S: 3250 Runoff = 1.88 cfs @ 12.10 hrs, Volume= 0.093 af, Depth= 3.18" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Area (ac) CN Description * 0.350 90 Weighted 0.350 90 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 7.0 Direct Entry, Subcatchment 80S: 3250 Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)2 1 0 MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Runoff Area=0.350 ac Runoff Volume=0.093 af Runoff Depth=3.18" Tc=7.0 min CN=90 1.88 cfs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda - Existing Printed 8/3/2018Prepared by LANDFORM Page 172HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 81S: 3343 Runoff = 12.62 cfs @ 12.27 hrs, Volume= 0.966 af, Depth= 1.95" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Area (ac) CN Description * 5.950 76 Weighted 5.950 76 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 19.0 Direct Entry, Subcatchment 81S: 3343 Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Runoff Area=5.950 ac Runoff Volume=0.966 af Runoff Depth=1.95" Tc=19.0 min CN=76 12.62 cfs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda - Existing Printed 8/3/2018Prepared by LANDFORM Page 173HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 82S: 3345 Runoff = 5.38 cfs @ 12.10 hrs, Volume= 0.260 af, Depth= 2.10" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Area (ac) CN Description * 1.480 78 Weighted 1.480 78 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 7.0 Direct Entry, Subcatchment 82S: 3345 Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)6 5 4 3 2 1 0 MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Runoff Area=1.480 ac Runoff Volume=0.260 af Runoff Depth=2.10" Tc=7.0 min CN=78 5.38 cfs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda - Existing Printed 8/3/2018Prepared by LANDFORM Page 174HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 83S: 3348 Runoff = 3.47 cfs @ 12.10 hrs, Volume= 0.168 af, Depth= 2.89" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Area (ac) CN Description * 0.700 87 Weighted 0.700 87 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 7.0 Direct Entry, Subcatchment 83S: 3348 Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)3 2 1 0 MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Runoff Area=0.700 ac Runoff Volume=0.168 af Runoff Depth=2.89" Tc=7.0 min CN=87 3.47 cfs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda - Existing Printed 8/3/2018Prepared by LANDFORM Page 175HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 84S: SE12 Runoff = 6.58 cfs @ 12.15 hrs, Volume= 0.382 af, Depth= 2.18" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Area (ac) CN Description * 2.100 79 Weighted 2.100 79 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 11.0 Direct Entry, Subcatchment 84S: SE12 Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)7 6 5 4 3 2 1 0 MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Runoff Area=2.100 ac Runoff Volume=0.382 af Runoff Depth=2.18" Tc=11.0 min CN=79 6.58 cfs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda - Existing Printed 8/3/2018Prepared by LANDFORM Page 176HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 85S: 1S Runoff = 7.68 cfs @ 12.22 hrs, Volume= 0.546 af, Depth= 1.45" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Area (ac) CN Description * 4.530 69 Weighted 4.530 69 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 15.0 Direct Entry, Subcatchment 85S: 1S Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)8 7 6 5 4 3 2 1 0 MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Runoff Area=4.530 ac Runoff Volume=0.546 af Runoff Depth=1.45" Tc=15.0 min CN=69 7.68 cfs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda - Existing Printed 8/3/2018Prepared by LANDFORM Page 177HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 86S: 2S Runoff = 7.59 cfs @ 12.36 hrs, Volume= 0.699 af, Depth= 1.45" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Area (ac) CN Description * 5.800 69 Weighted 5.800 69 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 25.0 Direct Entry, Subcatchment 86S: 2S Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)8 7 6 5 4 3 2 1 0 MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Runoff Area=5.800 ac Runoff Volume=0.699 af Runoff Depth=1.45" Tc=25.0 min CN=69 7.59 cfs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda - Existing Printed 8/3/2018Prepared by LANDFORM Page 178HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 87S: M9 Runoff = 36.74 cfs @ 12.41 hrs, Volume= 3.512 af, Depth= 1.95" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Area (ac) CN Description * 21.638 76 Weighted 21.638 76 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 29.0 Direct Entry, Subcatchment 87S: M9 Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)40 38 36 34 32 30 28 26 24 22 20 18 16 14 12 10 8 6 4 2 0 MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Runoff Area=21.638 ac Runoff Volume=3.512 af Runoff Depth=1.95" Tc=29.0 min CN=76 36.74 cfs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda - Existing Printed 8/3/2018Prepared by LANDFORM Page 179HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Reach 8R: South Drainage [40] Hint: Not Described (Outflow=Inflow) Inflow Area = 48.462 ac, 0.00% Impervious, Inflow Depth = 1.67" for 10y 24hr event Inflow = 72.88 cfs @ 12.28 hrs, Volume= 6.741 af Outflow = 72.88 cfs @ 12.28 hrs, Volume= 6.741 af, Atten= 0%, Lag= 0.0 min Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Reach 8R: South Drainage Inflow Outflow Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)80 75 70 65 60 55 50 45 40 35 30 25 20 15 10 5 0 Inflow Area=48.462 ac 72.88 cfs 72.88 cfs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda - Existing Printed 8/3/2018Prepared by LANDFORM Page 180HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Reach 9R: Wetland 4 Channel [40] Hint: Not Described (Outflow=Inflow) Inflow Area = 31.882 ac, 0.00% Impervious, Inflow Depth = 1.56" for 10y 24hr event Inflow = 45.29 cfs @ 12.35 hrs, Volume= 4.154 af Outflow = 45.29 cfs @ 12.35 hrs, Volume= 4.154 af, Atten= 0%, Lag= 0.0 min Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Reach 9R: Wetland 4 Channel Inflow Outflow Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)50 48 46 44 42 40 38 36 34 32 30 28 26 24 22 20 18 16 14 12 10 8 6 4 2 0 Inflow Area=31.882 ac 45.29 cfs 45.29 cfs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda - Existing Printed 8/3/2018Prepared by LANDFORM Page 181HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Reach 72R: N68 [52] Hint: Inlet/Outlet conditions not evaluated [55] Hint: Peak inflow is 111% of Manning's capacity [76] Warning: Detained 0.008 af (Pond w/culvert advised) Inflow Area = 4.190 ac, 56.32% Impervious, Inflow Depth = 3.74" for 10y 24hr event Inflow = 23.56 cfs @ 12.10 hrs, Volume= 1.306 af Outflow = 22.07 cfs @ 12.08 hrs, Volume= 1.306 af, Atten= 6%, Lag= 0.0 min Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Max. Velocity= 7.68 fps, Min. Travel Time= 0.1 min Avg. Velocity = 2.26 fps, Avg. Travel Time= 0.5 min Peak Storage= 198 cf @ 12.09 hrs Average Depth at Peak Storage= 2.00' Bank-Full Depth= 2.00' Flow Area= 3.1 sf, Capacity= 21.17 cfs 24.0" Round Pipe n= 0.012 Length= 63.0' Slope= 0.0075 '/' Inlet Invert= 872.00', Outlet Invert= 871.53' MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda - Existing Printed 8/3/2018Prepared by LANDFORM Page 182HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Reach 72R: N68 Inflow Outflow Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)26 24 22 20 18 16 14 12 10 8 6 4 2 0 Inflow Area=4.190 ac Avg. Flow Depth=2.00' Max Vel=7.68 fps 24.0" Round Pipe n=0.012 L=63.0' S=0.0075 '/' Capacity=21.17 cfs 23.56 cfs 22.07 cfs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda - Existing Printed 8/3/2018Prepared by LANDFORM Page 183HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Stage-Area-Storage for Reach 72R: N68 Elevation (feet) End-Area (sq-ft) Storage (cubic-feet) 872.00 0.0 0 872.02 0.0 0 872.04 0.0 1 872.06 0.0 2 872.08 0.0 3 872.10 0.1 4 872.12 0.1 5 872.14 0.1 6 872.16 0.1 7 872.18 0.1 9 872.20 0.2 10 872.22 0.2 12 872.24 0.2 13 872.26 0.2 15 872.28 0.3 17 872.30 0.3 19 872.32 0.3 20 872.34 0.4 22 872.36 0.4 24 872.38 0.4 26 872.40 0.4 28 872.42 0.5 30 872.44 0.5 32 872.46 0.5 34 872.48 0.6 37 872.50 0.6 39 872.52 0.6 41 872.54 0.7 43 872.56 0.7 45 872.58 0.8 48 872.60 0.8 50 872.62 0.8 52 872.64 0.9 55 872.66 0.9 57 872.68 0.9 59 872.70 1.0 62 872.72 1.0 64 872.74 1.1 67 872.76 1.1 69 872.78 1.1 71 872.80 1.2 74 872.82 1.2 76 872.84 1.3 79 872.86 1.3 81 872.88 1.3 84 872.90 1.4 86 872.92 1.4 89 872.94 1.5 91 872.96 1.5 94 872.98 1.5 96 873.00 1.6 99 873.02 1.6 101 Elevation (feet) End-Area (sq-ft) Storage (cubic-feet) 873.04 1.7 104 873.06 1.7 107 873.08 1.7 109 873.10 1.8 112 873.12 1.8 114 873.14 1.8 117 873.16 1.9 119 873.18 1.9 122 873.20 2.0 124 873.22 2.0 126 873.24 2.0 129 873.26 2.1 131 873.28 2.1 134 873.30 2.2 136 873.32 2.2 139 873.34 2.2 141 873.36 2.3 143 873.38 2.3 146 873.40 2.3 148 873.42 2.4 150 873.44 2.4 153 873.46 2.5 155 873.48 2.5 157 873.50 2.5 159 873.52 2.6 161 873.54 2.6 164 873.56 2.6 166 873.58 2.7 168 873.60 2.7 170 873.62 2.7 172 873.64 2.8 174 873.66 2.8 176 873.68 2.8 177 873.70 2.8 179 873.72 2.9 181 873.74 2.9 183 873.76 2.9 184 873.78 3.0 186 873.80 3.0 188 873.82 3.0 189 873.84 3.0 191 873.86 3.0 192 873.88 3.1 193 873.90 3.1 194 873.92 3.1 195 873.94 3.1 196 873.96 3.1 197 873.98 3.1 198 874.00 3.1 198 MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda - Existing Printed 8/3/2018Prepared by LANDFORM Page 184HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Pond 8P: Wetland 4 Inflow Area = 29.862 ac, 0.00% Impervious, Inflow Depth = 1.61" for 10y 24hr event Inflow = 43.91 cfs @ 12.34 hrs, Volume= 4.014 af Outflow = 43.89 cfs @ 12.35 hrs, Volume= 4.013 af, Atten= 0%, Lag= 0.5 min Primary = 43.89 cfs @ 12.35 hrs, Volume= 4.013 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 884.80' @ 12.35 hrs Surf.Area= 2,895 sf Storage= 1,446 cf Plug-Flow detention time= 1.8 min calculated for 4.013 af (100% of inflow) Center-of-Mass det. time= 1.4 min ( 826.2 - 824.8 ) Volume Invert Avail.Storage Storage Description #1 884.00' 37,633 cf Custom Stage Data (Prismatic) Listed below (Recalc) Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 884.00 870 0 0 884.50 1,980 713 713 885.00 3,500 1,370 2,083 886.00 7,800 5,650 7,733 887.00 14,000 10,900 18,633 888.00 24,000 19,000 37,633 Device Routing Invert Outlet Devices #1 Primary 884.03'Asymmetrical Weir, C= 3.27 Offset (feet) 0.00 51.00 133.60 176.00 217.30 239.00 Elev. (feet) 889.78 886.05 884.03 885.84 889.00 889.78 Primary OutFlow Max=43.89 cfs @ 12.35 hrs HW=884.80' TW=0.00' (Dynamic Tailwater) 1=Asymmetrical Weir (Weir Controls 43.89 cfs @ 1.15 fps) MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda - Existing Printed 8/3/2018Prepared by LANDFORM Page 185HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Pond 8P: Wetland 4 Inflow Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)48 46 44 42 40 38 36 34 32 30 28 26 24 22 20 18 16 14 12 10 8 6 4 2 0 Inflow Area=29.862 ac Peak Elev=884.80' Storage=1,446 cf 43.91 cfs 43.89 cfs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda - Existing Printed 8/3/2018Prepared by LANDFORM Page 186HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Stage-Area-Storage for Pond 8P: Wetland 4 Elevation (feet) Surface (sq-ft) Storage (cubic-feet) 884.00 870 0 884.10 1,092 98 884.20 1,314 218 884.30 1,536 361 884.40 1,758 526 884.50 1,980 713 884.60 2,284 926 884.70 2,588 1,169 884.80 2,892 1,443 884.90 3,196 1,748 885.00 3,500 2,083 885.10 3,930 2,454 885.20 4,360 2,869 885.30 4,790 3,326 885.40 5,220 3,826 885.50 5,650 4,370 885.60 6,080 4,957 885.70 6,510 5,586 885.80 6,940 6,258 885.90 7,370 6,974 886.00 7,800 7,733 886.10 8,420 8,544 886.20 9,040 9,417 886.30 9,660 10,351 886.40 10,280 11,348 886.50 10,900 12,408 886.60 11,520 13,529 886.70 12,140 14,712 886.80 12,760 15,956 886.90 13,380 17,263 887.00 14,000 18,633 887.10 15,000 20,083 887.20 16,000 21,633 887.30 17,000 23,282 887.40 18,000 25,032 887.50 19,000 26,883 887.60 20,000 28,833 887.70 21,000 30,883 887.80 22,000 33,032 887.90 23,000 35,282 888.00 24,000 37,633 888.10 24,000 37,633 888.20 24,000 37,633 888.30 24,000 37,633 888.40 24,000 37,633 888.50 24,000 37,633 888.60 24,000 37,633 888.70 24,000 37,633 888.80 24,000 37,633 888.90 24,000 37,633 889.00 24,000 37,633 889.10 24,000 37,633 Elevation (feet) Surface (sq-ft) Storage (cubic-feet) 889.20 24,000 37,633 889.30 24,000 37,633 889.40 24,000 37,633 889.50 24,000 37,633 889.60 24,000 37,633 889.70 24,000 37,633 MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda - Existing Printed 8/3/2018Prepared by LANDFORM Page 187HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Pond 71P: Interlachen [63] Warning: Exceeded Reach 72R INLET depth by 0.46' @ 12.74 hrs Inflow Area = 30.860 ac, 27.80% Impervious, Inflow Depth = 2.84" for 10y 24hr event Inflow = 110.95 cfs @ 12.11 hrs, Volume= 7.300 af Outflow = 20.63 cfs @ 12.66 hrs, Volume= 7.288 af, Atten= 81%, Lag= 32.9 min Primary = 20.63 cfs @ 12.66 hrs, Volume= 7.288 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 872.91' @ 12.66 hrs Surf.Area= 62,156 sf Storage= 161,551 cf Plug-Flow detention time= 502.1 min calculated for 7.288 af (100% of inflow) Center-of-Mass det. time= 501.0 min ( 1,278.6 - 777.6 ) Volume Invert Avail.Storage Storage Description #1 870.00' 381,460 cf Custom Stage Data (Prismatic) Listed below (Recalc) Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 870.00 50,570 0 0 872.00 56,860 107,430 107,430 875.00 74,330 196,785 304,215 876.00 80,160 77,245 381,460 Device Routing Invert Outlet Devices #1 Primary 870.00'24.0" Round Culvert L= 33.0' RCP, square edge headwall, Ke= 0.500 Inlet / Outlet Invert= 870.00' / 869.67' S= 0.0100 '/' Cc= 0.900 n= 0.012, Flow Area= 3.14 sf #2 Device 1 866.61'24.0" Round Culvert L= 21.0' RCP, end-section conforming to fill, Ke= 0.500 Inlet / Outlet Invert= 866.50' / 866.61' S= -0.0052 '/' Cc= 0.900 n= 0.012, Flow Area= 3.14 sf Primary OutFlow Max=20.63 cfs @ 12.66 hrs HW=872.91' TW=870.31' (Dynamic Tailwater) 1=Culvert (Barrel Controls 20.63 cfs @ 6.57 fps) 2=Culvert (Passes 20.63 cfs of 24.38 cfs potential flow) MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda - Existing Printed 8/3/2018Prepared by LANDFORM Page 188HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Pond 71P: Interlachen Inflow Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)120 115 110 105 100 95 90 85 80 75 70 65 60 55 50 45 40 35 30 25 20 15 10 5 0 Inflow Area=30.860 ac Peak Elev=872.91' Storage=161,551 cf 110.95 cfs 20.63 cfs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda - Existing Printed 8/3/2018Prepared by LANDFORM Page 189HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Stage-Area-Storage for Pond 71P: Interlachen Elevation (feet) Surface (sq-ft) Storage (cubic-feet) 870.00 50,570 0 870.10 50,885 5,073 870.20 51,199 10,177 870.30 51,513 15,313 870.40 51,828 20,480 870.50 52,143 25,678 870.60 52,457 30,908 870.70 52,772 36,170 870.80 53,086 41,462 870.90 53,400 46,787 871.00 53,715 52,143 871.10 54,030 57,530 871.20 54,344 62,948 871.30 54,658 68,399 871.40 54,973 73,880 871.50 55,288 79,393 871.60 55,602 84,938 871.70 55,917 90,514 871.80 56,231 96,121 871.90 56,545 101,760 872.00 56,860 107,430 872.10 57,442 113,145 872.20 58,025 118,918 872.30 58,607 124,750 872.40 59,189 130,640 872.50 59,772 136,588 872.60 60,354 142,594 872.70 60,936 148,659 872.80 61,519 154,781 872.90 62,101 160,962 873.00 62,683 167,202 873.10 63,266 173,499 873.20 63,848 179,855 873.30 64,430 186,269 873.40 65,013 192,741 873.50 65,595 199,271 873.60 66,177 205,860 873.70 66,760 212,507 873.80 67,342 219,212 873.90 67,924 225,975 874.00 68,507 232,797 874.10 69,089 239,676 874.20 69,671 246,614 874.30 70,254 253,611 874.40 70,836 260,665 874.50 71,418 267,778 874.60 72,001 274,949 874.70 72,583 282,178 874.80 73,165 289,465 874.90 73,748 296,811 875.00 74,330 304,215 875.10 74,913 311,677 Elevation (feet) Surface (sq-ft) Storage (cubic-feet) 875.20 75,496 319,198 875.30 76,079 326,776 875.40 76,662 334,413 875.50 77,245 342,109 875.60 77,828 349,862 875.70 78,411 357,674 875.80 78,994 365,545 875.90 79,577 373,473 876.00 80,160 381,460 MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda - Existing Printed 8/3/2018Prepared by LANDFORM Page 190HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Pond 72P: South MNDOT M9 Wetland Inflow Area = 113.390 ac, 7.57% Impervious, Inflow Depth = 2.03" for 10y 24hr event Inflow = 141.71 cfs @ 12.33 hrs, Volume= 19.168 af Outflow = 3.90 cfs @ 18.50 hrs, Volume= 18.857 af, Atten= 97%, Lag= 370.2 min Primary = 3.90 cfs @ 18.50 hrs, Volume= 18.857 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 871.06' @ 18.50 hrs Surf.Area= 492,284 sf Storage= 653,953 cf Plug-Flow detention time= 2,699.1 min calculated for 18.856 af (98% of inflow) Center-of-Mass det. time= 2,619.8 min ( 3,616.0 - 996.2 ) Volume Invert Avail.Storage Storage Description #1 869.50' 2,891,990 cf Custom Stage Data (Prismatic) Listed below (Recalc) Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 869.50 214,970 0 0 870.00 433,070 162,010 162,010 871.00 489,600 461,335 623,345 872.00 532,650 511,125 1,134,470 875.00 639,030 1,757,520 2,891,990 Device Routing Invert Outlet Devices #1 Primary 869.00'18.0" Round Culvert L= 276.0' RCP, square edge headwall, Ke= 0.500 Inlet / Outlet Invert= 869.00' / 866.93' S= 0.0075 '/' Cc= 0.900 n= 0.013 Concrete pipe, straight & clean, Flow Area= 1.77 sf #2 Device 1 869.50'12.0" Vert. Orifice/Grate C= 0.600 #3 Device 2 869.36'18.0" Round Culvert L= 172.0' RCP, end-section conforming to fill, Ke= 0.500 Inlet / Outlet Invert= 868.50' / 869.36' S= -0.0050 '/' Cc= 0.900 n= 0.013 Concrete pipe, straight & clean, Flow Area= 1.77 sf Primary OutFlow Max=3.90 cfs @ 18.50 hrs HW=871.06' (Free Discharge) 1=Culvert (Passes 3.90 cfs of 8.99 cfs potential flow) 2=Orifice/Grate (Orifice Controls 3.90 cfs @ 4.96 fps) 3=Culvert (Passes 3.90 cfs of 6.78 cfs potential flow) MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda - Existing Printed 8/3/2018Prepared by LANDFORM Page 191HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Pond 72P: South MNDOT M9 Wetland Inflow Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)150 140 130 120 110 100 90 80 70 60 50 40 30 20 10 0 Inflow Area=113.390 ac Peak Elev=871.06' Storage=653,953 cf 141.71 cfs 3.90 cfs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda - Existing Printed 8/3/2018Prepared by LANDFORM Page 192HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Stage-Area-Storage for Pond 72P: South MNDOT M9 Wetland Elevation (feet) Surface (sq-ft) Storage (cubic-feet) 869.50 214,970 0 869.60 258,590 23,678 869.70 302,210 51,718 869.80 345,830 84,120 869.90 389,450 120,884 870.00 433,070 162,010 870.10 438,723 205,600 870.20 444,376 249,755 870.30 450,029 294,475 870.40 455,682 339,760 870.50 461,335 385,611 870.60 466,988 432,027 870.70 472,641 479,009 870.80 478,294 526,556 870.90 483,947 574,668 871.00 489,600 623,345 871.10 493,905 672,520 871.20 498,210 722,126 871.30 502,515 772,162 871.40 506,820 822,629 871.50 511,125 873,526 871.60 515,430 924,854 871.70 519,735 976,612 871.80 524,040 1,028,801 871.90 528,345 1,081,420 872.00 532,650 1,134,470 872.10 536,196 1,187,912 872.20 539,742 1,241,709 872.30 543,288 1,295,861 872.40 546,834 1,350,367 872.50 550,380 1,405,228 872.60 553,926 1,460,443 872.70 557,472 1,516,013 872.80 561,018 1,571,937 872.90 564,564 1,628,216 873.00 568,110 1,684,850 873.10 571,656 1,741,838 873.20 575,202 1,799,181 873.30 578,748 1,856,879 873.40 582,294 1,914,931 873.50 585,840 1,973,338 873.60 589,386 2,032,099 873.70 592,932 2,091,215 873.80 596,478 2,150,685 873.90 600,024 2,210,510 874.00 603,570 2,270,690 874.10 607,116 2,331,224 874.20 610,662 2,392,113 874.30 614,208 2,453,357 874.40 617,754 2,514,955 874.50 621,300 2,576,908 874.60 624,846 2,639,215 Elevation (feet) Surface (sq-ft) Storage (cubic-feet) 874.70 628,392 2,701,877 874.80 631,938 2,764,893 874.90 635,484 2,828,264 875.00 639,030 2,891,990 MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda - Existing Printed 8/3/2018Prepared by LANDFORM Page 193HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Time span=0.00-360.00 hrs, dt=0.01 hrs, 36001 points Runoff by SCS TR-20 method, UH=SCS, Weighted-Q Reach routing by Dyn-Stor-Ind method - Pond routing by Dyn-Stor-Ind method Runoff Area=1,300,770 sf 0.00% Impervious Runoff Depth=4.01"Subcatchment 8S: South - Central to Flow Length=1,321' Tc=24.5 min CN=WQ Runoff=106.67 cfs 9.974 af Runoff Area=140,359 sf 0.00% Impervious Runoff Depth=2.39"Subcatchment 9.1S: East Woods Flow Length=530' Tc=15.2 min CN=55 Runoff=8.28 cfs 0.641 af Runoff Area=88,007 sf 0.00% Impervious Runoff Depth=2.71"Subcatchment 9.2S: Northeast Woods Flow Length=623' Tc=19.5 min CN=WQ Runoff=5.30 cfs 0.457 af Runoff Area=258,057 sf 0.00% Impervious Runoff Depth=4.95"Subcatchment 9.3S: South Flow Length=550' Tc=10.3 min CN=WQ Runoff=40.09 cfs 2.443 af Runoff Area=323,827 sf 0.00% Impervious Runoff Depth=4.92"Subcatchment 9.4S: Southeast Flow Length=912' Tc=16.5 min CN=WQ Runoff=40.15 cfs 3.047 af Runoff Area=2.080 ac 0.00% Impervious Runoff Depth=5.53"Subcatchment 71-1S: Interlacn Subcatch 1 Tc=7.0 min CN=84 Runoff=18.06 cfs 0.959 af Runoff Area=1.160 ac 100.00% Impervious Runoff Depth=7.41"Subcatchment 71-2S: Interlacn Subcatch 2 Tc=7.0 min CN=100 Runoff=11.67 cfs 0.716 af Runoff Area=0.810 ac 0.00% Impervious Runoff Depth=6.70"Subcatchment 72S: 6_Temp Tc=9.0 min CN=94 Runoff=7.25 cfs 0.452 af Runoff Area=2.360 ac 100.00% Impervious Runoff Depth=7.17"Subcatchment 73S: N68 Tc=7.0 min CN=98 Runoff=23.67 cfs 1.410 af Runoff Area=1.020 ac 0.00% Impervious Runoff Depth=6.23"Subcatchment 74S: 5_Temp Tc=9.0 min CN=90 Runoff=8.78 cfs 0.529 af Runoff Area=3.010 ac 100.00% Impervious Runoff Depth=7.17"Subcatchment 75S: 3225 Tc=7.0 min CN=98 Runoff=30.19 cfs 1.799 af Runoff Area=8.310 ac 0.00% Impervious Runoff Depth=5.07"Subcatchment 76S: 3236 Tc=14.0 min CN=80 Runoff=50.13 cfs 3.514 af Runoff Area=0.950 ac 0.00% Impervious Runoff Depth=5.42"Subcatchment 77S: 3238 Tc=7.0 min CN=83 Runoff=8.11 cfs 0.429 af Runoff Area=0.630 ac 0.00% Impervious Runoff Depth=6.34"Subcatchment 78S: 3243 Tc=7.0 min CN=91 Runoff=6.02 cfs 0.333 af Runoff Area=2.050 ac 100.00% Impervious Runoff Depth=7.17"Subcatchment 79S: 3245 Tc=7.0 min CN=98 Runoff=20.56 cfs 1.225 af Runoff Area=0.350 ac 0.00% Impervious Runoff Depth=6.23"Subcatchment 80S: 3250 Tc=7.0 min CN=90 Runoff=3.31 cfs 0.182 af MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda - Existing Printed 8/3/2018Prepared by LANDFORM Page 194HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Runoff Area=5.950 ac 0.00% Impervious Runoff Depth=4.62"Subcatchment 81S: 3343 Tc=19.0 min CN=76 Runoff=28.32 cfs 2.293 af Runoff Area=1.480 ac 0.00% Impervious Runoff Depth=4.85"Subcatchment 82S: 3345 Tc=7.0 min CN=78 Runoff=11.48 cfs 0.598 af Runoff Area=0.700 ac 0.00% Impervious Runoff Depth=5.88"Subcatchment 83S: 3348 Tc=7.0 min CN=87 Runoff=6.36 cfs 0.343 af Runoff Area=2.100 ac 0.00% Impervious Runoff Depth=4.96"Subcatchment 84S: SE12 Tc=11.0 min CN=79 Runoff=13.85 cfs 0.868 af Runoff Area=4.530 ac 0.00% Impervious Runoff Depth=3.85"Subcatchment 85S: 1S Tc=15.0 min CN=69 Runoff=20.10 cfs 1.454 af Runoff Area=5.800 ac 0.00% Impervious Runoff Depth=3.85"Subcatchment 86S: 2S Tc=25.0 min CN=69 Runoff=19.99 cfs 1.862 af Runoff Area=21.638 ac 0.00% Impervious Runoff Depth=4.62"Subcatchment 87S: M9 Tc=29.0 min CN=76 Runoff=83.28 cfs 8.338 af Inflow=174.60 cfs 16.561 afReach 8R: South Drainage Outflow=174.60 cfs 16.561 af Inflow=111.61 cfs 10.430 afReach 9R: Wetland 4 Channel Outflow=111.61 cfs 10.430 af Avg. Flow Depth=2.00' Max Vel=7.68 fps Inflow=39.13 cfs 2.391 afReach 72R: N68 24.0" Round Pipe n=0.012 L=63.0' S=0.0075 '/' Capacity=21.17 cfs Outflow=21.18 cfs 2.391 af Peak Elev=885.13' Storage=2,571 cf Inflow=106.67 cfs 9.974 afPond 8P: Wetland 4 Outflow=106.57 cfs 9.973 af Peak Elev=875.55' Storage=345,911 cf Inflow=190.89 cfs 14.781 afPond 71P: Interlachen Outflow=31.08 cfs 14.767 af Peak Elev=872.78' Storage=1,558,286 cf Inflow=322.46 cfs 43.851 afPond 72P: South MNDOT M9 Wetland Outflow=6.30 cfs 43.454 af Total Runoff Area = 113.390 ac Runoff Volume = 43.866 af Average Runoff Depth = 4.64" 92.43% Pervious = 104.810 ac 7.57% Impervious = 8.580 ac MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda - Existing Printed 8/3/2018Prepared by LANDFORM Page 195HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 8S: South - Central to Wetland 4 Runoff = 106.67 cfs @ 12.33 hrs, Volume= 9.974 af, Depth= 4.01" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Area (sf) CN Description * 15,505 79 Wetland 5, Pasture/grassland/range, Poor, HSG B 21,030 55 Woods, Good, HSG B 185,110 79 Pasture/grassland/range, Poor, HSG B 460,890 55 Woods, Good, HSG B 618,235 79 Pasture/grassland/range, Poor, HSG B 1,300,770 Weighted Average 1,300,770 70 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 7.8 100 0.0300 0.21 Sheet Flow, Range n= 0.130 P2= 2.87" 15.2 1,028 0.0260 1.13 Shallow Concentrated Flow, Short Grass Pasture Kv= 7.0 fps 1.5 193 0.0200 2.12 Shallow Concentrated Flow, Wetland Grassed Waterway Kv= 15.0 fps 24.5 1,321 Total Subcatchment 8S: South - Central to Wetland 4 Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)115 110 105 100 95 90 85 80 75 70 65 60 55 50 45 40 35 30 25 20 15 10 5 0 MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Runoff Area=1,300,770 sf Runoff Volume=9.974 af Runoff Depth=4.01" Flow Length=1,321' Tc=24.5 min CN=WQ 106.67 cfs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda - Existing Printed 8/3/2018Prepared by LANDFORM Page 196HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 9.1S: East Woods Runoff = 8.28 cfs @ 12.22 hrs, Volume= 0.641 af, Depth= 2.39" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Area (sf) CN Description 140,359 55 Woods, Good, HSG B 140,359 55 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 11.1 75 0.0670 0.11 Sheet Flow, Woods: Light underbrush n= 0.400 P2= 2.87" 4.1 455 0.1380 1.86 Shallow Concentrated Flow, Woodland Kv= 5.0 fps 15.2 530 Total Subcatchment 9.1S: East Woods Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)9 8 7 6 5 4 3 2 1 0 MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Runoff Area=140,359 sf Runoff Volume=0.641 af Runoff Depth=2.39" Flow Length=530' Tc=15.2 min CN=55 8.28 cfs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda - Existing Printed 8/3/2018Prepared by LANDFORM Page 197HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 9.2S: Northeast Woods Runoff = 5.30 cfs @ 12.28 hrs, Volume= 0.457 af, Depth= 2.71" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Area (sf) CN Description 76,845 55 Woods, Good, HSG B 11,162 79 Pasture/grassland/range, Poor, HSG B 88,007 Weighted Average 88,007 58 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 14.2 100 0.0650 0.12 Sheet Flow, Woods: Light underbrush n= 0.400 P2= 2.87" 5.3 523 0.1080 1.64 Shallow Concentrated Flow, Woodland Kv= 5.0 fps 19.5 623 Total Subcatchment 9.2S: Northeast Woods Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)5 4 3 2 1 0 MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Runoff Area=88,007 sf Runoff Volume=0.457 af Runoff Depth=2.71" Flow Length=623' Tc=19.5 min CN=WQ 5.30 cfs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda - Existing Printed 8/3/2018Prepared by LANDFORM Page 198HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 9.3S: South Runoff = 40.09 cfs @ 12.14 hrs, Volume= 2.443 af, Depth= 4.95" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Area (sf) CN Description 3,690 55 Woods, Good, HSG B 246,824 79 Pasture/grassland/range, Poor, HSG B 7,543 86 Pasture/grassland/range, Poor, HSG C 258,057 Weighted Average 258,057 79 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 6.5 90 0.0390 0.23 Sheet Flow, Range n= 0.130 P2= 2.87" 3.8 460 0.0850 2.04 Shallow Concentrated Flow, Short Grass Pasture Kv= 7.0 fps 10.3 550 Total Subcatchment 9.3S: South Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)44 42 40 38 36 34 32 30 28 26 24 22 20 18 16 14 12 10 8 6 4 2 0 MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Runoff Area=258,057 sf Runoff Volume=2.443 af Runoff Depth=4.95" Flow Length=550' Tc=10.3 min CN=WQ 40.09 cfs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda - Existing Printed 8/3/2018Prepared by LANDFORM Page 199HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 9.4S: Southeast Runoff = 40.15 cfs @ 12.22 hrs, Volume= 3.047 af, Depth= 4.92" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Area (sf) CN Description 4,560 55 Woods, Good, HSG B 2,090 58 Meadow, non-grazed, HSG B 313,772 79 Pasture/grassland/range, Poor, HSG B 3,405 86 Pasture/grassland/range, Poor, HSG C 323,827 Weighted Average 323,827 79 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 6.0 55 0.0180 0.15 Sheet Flow, Range n= 0.130 P2= 2.87" 10.5 857 0.0380 1.36 Shallow Concentrated Flow, Short Grass Pasture Kv= 7.0 fps 16.5 912 Total Subcatchment 9.4S: Southeast Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)44 42 40 38 36 34 32 30 28 26 24 22 20 18 16 14 12 10 8 6 4 2 0 MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Runoff Area=323,827 sf Runoff Volume=3.047 af Runoff Depth=4.92" Flow Length=912' Tc=16.5 min CN=WQ 40.15 cfs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda - Existing Printed 8/3/2018Prepared by LANDFORM Page 200HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 71-1S: Interlacn Subcatch 1 Runoff = 18.06 cfs @ 12.10 hrs, Volume= 0.959 af, Depth= 5.53" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Area (ac) CN Description * 2.080 84 Weoghted 2.080 84 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 7.0 Direct Entry, Subcatchment 71-1S: Interlacn Subcatch 1 Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Runoff Area=2.080 ac Runoff Volume=0.959 af Runoff Depth=5.53" Tc=7.0 min CN=84 18.06 cfs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda - Existing Printed 8/3/2018Prepared by LANDFORM Page 201HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 71-2S: Interlacn Subcatch 2 Runoff = 11.67 cfs @ 12.09 hrs, Volume= 0.716 af, Depth= 7.41" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Area (ac) CN Description * 1.160 100 1.160 100 100.00% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 7.0 Direct Entry, Subcatchment 71-2S: Interlacn Subcatch 2 Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)13 12 11 10 9 8 7 6 5 4 3 2 1 0 MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Runoff Area=1.160 ac Runoff Volume=0.716 af Runoff Depth=7.41" Tc=7.0 min CN=100 11.67 cfs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda - Existing Printed 8/3/2018Prepared by LANDFORM Page 202HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 72S: 6_Temp Runoff = 7.25 cfs @ 12.12 hrs, Volume= 0.452 af, Depth= 6.70" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Area (ac) CN Description * 0.810 94 Weighted 0.810 94 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 9.0 Direct Entry, Subcatchment 72S: 6_Temp Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)8 7 6 5 4 3 2 1 0 MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Runoff Area=0.810 ac Runoff Volume=0.452 af Runoff Depth=6.70" Tc=9.0 min CN=94 7.25 cfs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda - Existing Printed 8/3/2018Prepared by LANDFORM Page 203HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 73S: N68 Runoff = 23.67 cfs @ 12.09 hrs, Volume= 1.410 af, Depth= 7.17" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Area (ac) CN Description * 2.360 98 Weighted 2.360 98 100.00% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 7.0 Direct Entry, Subcatchment 73S: N68 Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)26 24 22 20 18 16 14 12 10 8 6 4 2 0 MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Runoff Area=2.360 ac Runoff Volume=1.410 af Runoff Depth=7.17" Tc=7.0 min CN=98 23.67 cfs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda - Existing Printed 8/3/2018Prepared by LANDFORM Page 204HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 74S: 5_Temp Runoff = 8.78 cfs @ 12.12 hrs, Volume= 0.529 af, Depth= 6.23" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Area (ac) CN Description * 1.020 90 1.020 90 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 9.0 Direct Entry, Subcatchment 74S: 5_Temp Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)9 8 7 6 5 4 3 2 1 0 MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Runoff Area=1.020 ac Runoff Volume=0.529 af Runoff Depth=6.23" Tc=9.0 min CN=90 8.78 cfs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda - Existing Printed 8/3/2018Prepared by LANDFORM Page 205HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 75S: 3225 Runoff = 30.19 cfs @ 12.09 hrs, Volume= 1.799 af, Depth= 7.17" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Area (ac) CN Description * 3.010 98 Weighted 3.010 98 100.00% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 7.0 Direct Entry, Subcatchment 75S: 3225 Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)32 30 28 26 24 22 20 18 16 14 12 10 8 6 4 2 0 MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Runoff Area=3.010 ac Runoff Volume=1.799 af Runoff Depth=7.17" Tc=7.0 min CN=98 30.19 cfs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda - Existing Printed 8/3/2018Prepared by LANDFORM Page 206HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 76S: 3236 Runoff = 50.13 cfs @ 12.18 hrs, Volume= 3.514 af, Depth= 5.07" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Area (ac) CN Description * 8.310 80 Weighted 8.310 80 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 14.0 Direct Entry, Subcatchment 76S: 3236 Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)55 50 45 40 35 30 25 20 15 10 5 0 MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Runoff Area=8.310 ac Runoff Volume=3.514 af Runoff Depth=5.07" Tc=14.0 min CN=80 50.13 cfs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda - Existing Printed 8/3/2018Prepared by LANDFORM Page 207HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 77S: 3238 Runoff = 8.11 cfs @ 12.10 hrs, Volume= 0.429 af, Depth= 5.42" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Area (ac) CN Description * 0.950 83 Weighted 0.950 83 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 7.0 Direct Entry, Subcatchment 77S: 3238 Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)9 8 7 6 5 4 3 2 1 0 MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Runoff Area=0.950 ac Runoff Volume=0.429 af Runoff Depth=5.42" Tc=7.0 min CN=83 8.11 cfs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda - Existing Printed 8/3/2018Prepared by LANDFORM Page 208HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 78S: 3243 Runoff = 6.02 cfs @ 12.09 hrs, Volume= 0.333 af, Depth= 6.34" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Area (ac) CN Description * 0.630 91 Weighted 0.630 91 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 7.0 Direct Entry, Subcatchment 78S: 3243 Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)6 5 4 3 2 1 0 MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Runoff Area=0.630 ac Runoff Volume=0.333 af Runoff Depth=6.34" Tc=7.0 min CN=91 6.02 cfs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda - Existing Printed 8/3/2018Prepared by LANDFORM Page 209HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 79S: 3245 Runoff = 20.56 cfs @ 12.09 hrs, Volume= 1.225 af, Depth= 7.17" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Area (ac) CN Description * 2.050 98 Weighted 2.050 98 100.00% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 7.0 Direct Entry, Subcatchment 79S: 3245 Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Runoff Area=2.050 ac Runoff Volume=1.225 af Runoff Depth=7.17" Tc=7.0 min CN=98 20.56 cfs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda - Existing Printed 8/3/2018Prepared by LANDFORM Page 210HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 80S: 3250 Runoff = 3.31 cfs @ 12.09 hrs, Volume= 0.182 af, Depth= 6.23" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Area (ac) CN Description * 0.350 90 Weighted 0.350 90 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 7.0 Direct Entry, Subcatchment 80S: 3250 Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)3 2 1 0 MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Runoff Area=0.350 ac Runoff Volume=0.182 af Runoff Depth=6.23" Tc=7.0 min CN=90 3.31 cfs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda - Existing Printed 8/3/2018Prepared by LANDFORM Page 211HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 81S: 3343 Runoff = 28.32 cfs @ 12.26 hrs, Volume= 2.293 af, Depth= 4.62" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Area (ac) CN Description * 5.950 76 Weighted 5.950 76 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 19.0 Direct Entry, Subcatchment 81S: 3343 Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)30 28 26 24 22 20 18 16 14 12 10 8 6 4 2 0 MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Runoff Area=5.950 ac Runoff Volume=2.293 af Runoff Depth=4.62" Tc=19.0 min CN=76 28.32 cfs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda - Existing Printed 8/3/2018Prepared by LANDFORM Page 212HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 82S: 3345 Runoff = 11.48 cfs @ 12.10 hrs, Volume= 0.598 af, Depth= 4.85" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Area (ac) CN Description * 1.480 78 Weighted 1.480 78 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 7.0 Direct Entry, Subcatchment 82S: 3345 Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)12 11 10 9 8 7 6 5 4 3 2 1 0 MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Runoff Area=1.480 ac Runoff Volume=0.598 af Runoff Depth=4.85" Tc=7.0 min CN=78 11.48 cfs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda - Existing Printed 8/3/2018Prepared by LANDFORM Page 213HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 83S: 3348 Runoff = 6.36 cfs @ 12.10 hrs, Volume= 0.343 af, Depth= 5.88" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Area (ac) CN Description * 0.700 87 Weighted 0.700 87 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 7.0 Direct Entry, Subcatchment 83S: 3348 Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)7 6 5 4 3 2 1 0 MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Runoff Area=0.700 ac Runoff Volume=0.343 af Runoff Depth=5.88" Tc=7.0 min CN=87 6.36 cfs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda - Existing Printed 8/3/2018Prepared by LANDFORM Page 214HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 84S: SE12 Runoff = 13.85 cfs @ 12.15 hrs, Volume= 0.868 af, Depth= 4.96" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Area (ac) CN Description * 2.100 79 Weighted 2.100 79 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 11.0 Direct Entry, Subcatchment 84S: SE12 Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Runoff Area=2.100 ac Runoff Volume=0.868 af Runoff Depth=4.96" Tc=11.0 min CN=79 13.85 cfs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda - Existing Printed 8/3/2018Prepared by LANDFORM Page 215HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 85S: 1S Runoff = 20.10 cfs @ 12.21 hrs, Volume= 1.454 af, Depth= 3.85" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Area (ac) CN Description * 4.530 69 Weighted 4.530 69 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 15.0 Direct Entry, Subcatchment 85S: 1S Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Runoff Area=4.530 ac Runoff Volume=1.454 af Runoff Depth=3.85" Tc=15.0 min CN=69 20.10 cfs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda - Existing Printed 8/3/2018Prepared by LANDFORM Page 216HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 86S: 2S Runoff = 19.99 cfs @ 12.36 hrs, Volume= 1.862 af, Depth= 3.85" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Area (ac) CN Description * 5.800 69 Weighted 5.800 69 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 25.0 Direct Entry, Subcatchment 86S: 2S Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Runoff Area=5.800 ac Runoff Volume=1.862 af Runoff Depth=3.85" Tc=25.0 min CN=69 19.99 cfs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda - Existing Printed 8/3/2018Prepared by LANDFORM Page 217HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 87S: M9 Runoff = 83.28 cfs @ 12.40 hrs, Volume= 8.338 af, Depth= 4.62" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Area (ac) CN Description * 21.638 76 Weighted 21.638 76 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 29.0 Direct Entry, Subcatchment 87S: M9 Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)90 85 80 75 70 65 60 55 50 45 40 35 30 25 20 15 10 5 0 MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Runoff Area=21.638 ac Runoff Volume=8.338 af Runoff Depth=4.62" Tc=29.0 min CN=76 83.28 cfs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda - Existing Printed 8/3/2018Prepared by LANDFORM Page 218HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Reach 8R: South Drainage [40] Hint: Not Described (Outflow=Inflow) Inflow Area = 48.462 ac, 0.00% Impervious, Inflow Depth = 4.10" for 100y 24hr event Inflow = 174.60 cfs @ 12.27 hrs, Volume= 16.561 af Outflow = 174.60 cfs @ 12.27 hrs, Volume= 16.561 af, Atten= 0%, Lag= 0.0 min Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Reach 8R: South Drainage Inflow Outflow Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)190 180 170 160 150 140 130 120 110 100 90 80 70 60 50 40 30 20 10 0 Inflow Area=48.462 ac 174.60 cfs 174.60 cfs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda - Existing Printed 8/3/2018Prepared by LANDFORM Page 219HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Reach 9R: Wetland 4 Channel [40] Hint: Not Described (Outflow=Inflow) Inflow Area = 31.882 ac, 0.00% Impervious, Inflow Depth = 3.93" for 100y 24hr event Inflow = 111.61 cfs @ 12.34 hrs, Volume= 10.430 af Outflow = 111.61 cfs @ 12.34 hrs, Volume= 10.430 af, Atten= 0%, Lag= 0.0 min Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Reach 9R: Wetland 4 Channel Inflow Outflow Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)120 115 110 105 100 95 90 85 80 75 70 65 60 55 50 45 40 35 30 25 20 15 10 5 0 Inflow Area=31.882 ac 111.61 cfs 111.61 cfs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda - Existing Printed 8/3/2018Prepared by LANDFORM Page 220HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Reach 72R: N68 [52] Hint: Inlet/Outlet conditions not evaluated [55] Hint: Peak inflow is 185% of Manning's capacity [76] Warning: Detained 0.166 af (Pond w/culvert advised) Inflow Area = 4.190 ac, 56.32% Impervious, Inflow Depth = 6.85" for 100y 24hr event Inflow = 39.13 cfs @ 12.10 hrs, Volume= 2.391 af Outflow = 21.18 cfs @ 12.02 hrs, Volume= 2.391 af, Atten= 46%, Lag= 0.0 min Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Max. Velocity= 7.68 fps, Min. Travel Time= 0.1 min Avg. Velocity = 2.56 fps, Avg. Travel Time= 0.4 min Peak Storage= 198 cf @ 12.03 hrs Average Depth at Peak Storage= 2.00' Bank-Full Depth= 2.00' Flow Area= 3.1 sf, Capacity= 21.17 cfs 24.0" Round Pipe n= 0.012 Length= 63.0' Slope= 0.0075 '/' Inlet Invert= 872.00', Outlet Invert= 871.53' MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda - Existing Printed 8/3/2018Prepared by LANDFORM Page 221HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Reach 72R: N68 Inflow Outflow Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)42 40 38 36 34 32 30 28 26 24 22 20 18 16 14 12 10 8 6 4 2 0 Inflow Area=4.190 ac Avg. Flow Depth=2.00' Max Vel=7.68 fps 24.0" Round Pipe n=0.012 L=63.0' S=0.0075 '/' Capacity=21.17 cfs 39.13 cfs 21.18 cfs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda - Existing Printed 8/3/2018Prepared by LANDFORM Page 222HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Stage-Area-Storage for Reach 72R: N68 Elevation (feet) End-Area (sq-ft) Storage (cubic-feet) 872.00 0.0 0 872.02 0.0 0 872.04 0.0 1 872.06 0.0 2 872.08 0.0 3 872.10 0.1 4 872.12 0.1 5 872.14 0.1 6 872.16 0.1 7 872.18 0.1 9 872.20 0.2 10 872.22 0.2 12 872.24 0.2 13 872.26 0.2 15 872.28 0.3 17 872.30 0.3 19 872.32 0.3 20 872.34 0.4 22 872.36 0.4 24 872.38 0.4 26 872.40 0.4 28 872.42 0.5 30 872.44 0.5 32 872.46 0.5 34 872.48 0.6 37 872.50 0.6 39 872.52 0.6 41 872.54 0.7 43 872.56 0.7 45 872.58 0.8 48 872.60 0.8 50 872.62 0.8 52 872.64 0.9 55 872.66 0.9 57 872.68 0.9 59 872.70 1.0 62 872.72 1.0 64 872.74 1.1 67 872.76 1.1 69 872.78 1.1 71 872.80 1.2 74 872.82 1.2 76 872.84 1.3 79 872.86 1.3 81 872.88 1.3 84 872.90 1.4 86 872.92 1.4 89 872.94 1.5 91 872.96 1.5 94 872.98 1.5 96 873.00 1.6 99 873.02 1.6 101 Elevation (feet) End-Area (sq-ft) Storage (cubic-feet) 873.04 1.7 104 873.06 1.7 107 873.08 1.7 109 873.10 1.8 112 873.12 1.8 114 873.14 1.8 117 873.16 1.9 119 873.18 1.9 122 873.20 2.0 124 873.22 2.0 126 873.24 2.0 129 873.26 2.1 131 873.28 2.1 134 873.30 2.2 136 873.32 2.2 139 873.34 2.2 141 873.36 2.3 143 873.38 2.3 146 873.40 2.3 148 873.42 2.4 150 873.44 2.4 153 873.46 2.5 155 873.48 2.5 157 873.50 2.5 159 873.52 2.6 161 873.54 2.6 164 873.56 2.6 166 873.58 2.7 168 873.60 2.7 170 873.62 2.7 172 873.64 2.8 174 873.66 2.8 176 873.68 2.8 177 873.70 2.8 179 873.72 2.9 181 873.74 2.9 183 873.76 2.9 184 873.78 3.0 186 873.80 3.0 188 873.82 3.0 189 873.84 3.0 191 873.86 3.0 192 873.88 3.1 193 873.90 3.1 194 873.92 3.1 195 873.94 3.1 196 873.96 3.1 197 873.98 3.1 198 874.00 3.1 198 MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda - Existing Printed 8/3/2018Prepared by LANDFORM Page 223HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Pond 8P: Wetland 4 Inflow Area = 29.862 ac, 0.00% Impervious, Inflow Depth = 4.01" for 100y 24hr event Inflow = 106.67 cfs @ 12.33 hrs, Volume= 9.974 af Outflow = 106.57 cfs @ 12.34 hrs, Volume= 9.973 af, Atten= 0%, Lag= 0.4 min Primary = 106.57 cfs @ 12.34 hrs, Volume= 9.973 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 885.13' @ 12.34 hrs Surf.Area= 4,056 sf Storage= 2,571 cf Plug-Flow detention time= 0.9 min calculated for 9.973 af (100% of inflow) Center-of-Mass det. time= 0.9 min ( 799.3 - 798.4 ) Volume Invert Avail.Storage Storage Description #1 884.00' 37,633 cf Custom Stage Data (Prismatic) Listed below (Recalc) Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 884.00 870 0 0 884.50 1,980 713 713 885.00 3,500 1,370 2,083 886.00 7,800 5,650 7,733 887.00 14,000 10,900 18,633 888.00 24,000 19,000 37,633 Device Routing Invert Outlet Devices #1 Primary 884.03'Asymmetrical Weir, C= 3.27 Offset (feet) 0.00 51.00 133.60 176.00 217.30 239.00 Elev. (feet) 889.78 886.05 884.03 885.84 889.00 889.78 Primary OutFlow Max=106.54 cfs @ 12.34 hrs HW=885.13' TW=0.00' (Dynamic Tailwater) 1=Asymmetrical Weir (Weir Controls 106.54 cfs @ 1.37 fps) MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda - Existing Printed 8/3/2018Prepared by LANDFORM Page 224HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Pond 8P: Wetland 4 Inflow Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)115 110 105 100 95 90 85 80 75 70 65 60 55 50 45 40 35 30 25 20 15 10 5 0 Inflow Area=29.862 ac Peak Elev=885.13' Storage=2,571 cf 106.67 cfs 106.57 cfs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda - Existing Printed 8/3/2018Prepared by LANDFORM Page 225HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Stage-Area-Storage for Pond 8P: Wetland 4 Elevation (feet) Surface (sq-ft) Storage (cubic-feet) 884.00 870 0 884.10 1,092 98 884.20 1,314 218 884.30 1,536 361 884.40 1,758 526 884.50 1,980 713 884.60 2,284 926 884.70 2,588 1,169 884.80 2,892 1,443 884.90 3,196 1,748 885.00 3,500 2,083 885.10 3,930 2,454 885.20 4,360 2,869 885.30 4,790 3,326 885.40 5,220 3,826 885.50 5,650 4,370 885.60 6,080 4,957 885.70 6,510 5,586 885.80 6,940 6,258 885.90 7,370 6,974 886.00 7,800 7,733 886.10 8,420 8,544 886.20 9,040 9,417 886.30 9,660 10,351 886.40 10,280 11,348 886.50 10,900 12,408 886.60 11,520 13,529 886.70 12,140 14,712 886.80 12,760 15,956 886.90 13,380 17,263 887.00 14,000 18,633 887.10 15,000 20,083 887.20 16,000 21,633 887.30 17,000 23,282 887.40 18,000 25,032 887.50 19,000 26,883 887.60 20,000 28,833 887.70 21,000 30,883 887.80 22,000 33,032 887.90 23,000 35,282 888.00 24,000 37,633 888.10 24,000 37,633 888.20 24,000 37,633 888.30 24,000 37,633 888.40 24,000 37,633 888.50 24,000 37,633 888.60 24,000 37,633 888.70 24,000 37,633 888.80 24,000 37,633 888.90 24,000 37,633 889.00 24,000 37,633 889.10 24,000 37,633 Elevation (feet) Surface (sq-ft) Storage (cubic-feet) 889.20 24,000 37,633 889.30 24,000 37,633 889.40 24,000 37,633 889.50 24,000 37,633 889.60 24,000 37,633 889.70 24,000 37,633 MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda - Existing Printed 8/3/2018Prepared by LANDFORM Page 226HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Pond 71P: Interlachen [63] Warning: Exceeded Reach 72R INLET depth by 3.00' @ 13.19 hrs Inflow Area = 30.860 ac, 27.80% Impervious, Inflow Depth = 5.75" for 100y 24hr event Inflow = 190.89 cfs @ 12.11 hrs, Volume= 14.781 af Outflow = 31.08 cfs @ 12.49 hrs, Volume= 14.767 af, Atten= 84%, Lag= 22.8 min Primary = 31.08 cfs @ 12.49 hrs, Volume= 14.767 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 875.55' @ 13.07 hrs Surf.Area= 77,531 sf Storage= 345,911 cf Plug-Flow detention time= 871.9 min calculated for 14.767 af (100% of inflow) Center-of-Mass det. time= 871.3 min ( 1,634.8 - 763.5 ) Volume Invert Avail.Storage Storage Description #1 870.00' 381,460 cf Custom Stage Data (Prismatic) Listed below (Recalc) Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 870.00 50,570 0 0 872.00 56,860 107,430 107,430 875.00 74,330 196,785 304,215 876.00 80,160 77,245 381,460 Device Routing Invert Outlet Devices #1 Primary 870.00'24.0" Round Culvert L= 33.0' RCP, square edge headwall, Ke= 0.500 Inlet / Outlet Invert= 870.00' / 869.67' S= 0.0100 '/' Cc= 0.900 n= 0.012, Flow Area= 3.14 sf #2 Device 1 866.61'24.0" Round Culvert L= 21.0' RCP, end-section conforming to fill, Ke= 0.500 Inlet / Outlet Invert= 866.50' / 866.61' S= -0.0052 '/' Cc= 0.900 n= 0.012, Flow Area= 3.14 sf Primary OutFlow Max=31.01 cfs @ 12.49 hrs HW=875.24' TW=871.04' (Dynamic Tailwater) 1=Culvert ( Controls 31.01 cfs) 2=Culvert (Inlet Controls 31.01 cfs @ 9.87 fps) MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda - Existing Printed 8/3/2018Prepared by LANDFORM Page 227HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Pond 71P: Interlachen Inflow Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)210 200 190 180 170 160 150 140 130 120 110 100 90 80 70 60 50 40 30 20 10 0 Inflow Area=30.860 ac Peak Elev=875.55' Storage=345,911 cf 190.89 cfs 31.08 cfs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda - Existing Printed 8/3/2018Prepared by LANDFORM Page 228HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Stage-Area-Storage for Pond 71P: Interlachen Elevation (feet) Surface (sq-ft) Storage (cubic-feet) 870.00 50,570 0 870.10 50,885 5,073 870.20 51,199 10,177 870.30 51,513 15,313 870.40 51,828 20,480 870.50 52,143 25,678 870.60 52,457 30,908 870.70 52,772 36,170 870.80 53,086 41,462 870.90 53,400 46,787 871.00 53,715 52,143 871.10 54,030 57,530 871.20 54,344 62,948 871.30 54,658 68,399 871.40 54,973 73,880 871.50 55,288 79,393 871.60 55,602 84,938 871.70 55,917 90,514 871.80 56,231 96,121 871.90 56,545 101,760 872.00 56,860 107,430 872.10 57,442 113,145 872.20 58,025 118,918 872.30 58,607 124,750 872.40 59,189 130,640 872.50 59,772 136,588 872.60 60,354 142,594 872.70 60,936 148,659 872.80 61,519 154,781 872.90 62,101 160,962 873.00 62,683 167,202 873.10 63,266 173,499 873.20 63,848 179,855 873.30 64,430 186,269 873.40 65,013 192,741 873.50 65,595 199,271 873.60 66,177 205,860 873.70 66,760 212,507 873.80 67,342 219,212 873.90 67,924 225,975 874.00 68,507 232,797 874.10 69,089 239,676 874.20 69,671 246,614 874.30 70,254 253,611 874.40 70,836 260,665 874.50 71,418 267,778 874.60 72,001 274,949 874.70 72,583 282,178 874.80 73,165 289,465 874.90 73,748 296,811 875.00 74,330 304,215 875.10 74,913 311,677 Elevation (feet) Surface (sq-ft) Storage (cubic-feet) 875.20 75,496 319,198 875.30 76,079 326,776 875.40 76,662 334,413 875.50 77,245 342,109 875.60 77,828 349,862 875.70 78,411 357,674 875.80 78,994 365,545 875.90 79,577 373,473 876.00 80,160 381,460 MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda - Existing Printed 8/3/2018Prepared by LANDFORM Page 229HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Pond 72P: South MNDOT M9 Wetland Inflow Area = 113.390 ac, 7.57% Impervious, Inflow Depth = 4.64" for 100y 24hr event Inflow = 322.46 cfs @ 12.30 hrs, Volume= 43.851 af Outflow = 6.30 cfs @ 18.43 hrs, Volume= 43.454 af, Atten= 98%, Lag= 367.5 min Primary = 6.30 cfs @ 18.43 hrs, Volume= 43.454 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 872.78' @ 18.43 hrs Surf.Area= 560,155 sf Storage= 1,558,286 cf Plug-Flow detention time= 3,212.4 min calculated for 43.454 af (99% of inflow) Center-of-Mass det. time= 3,144.7 min ( 4,223.2 - 1,078.5 ) Volume Invert Avail.Storage Storage Description #1 869.50' 2,891,990 cf Custom Stage Data (Prismatic) Listed below (Recalc) Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 869.50 214,970 0 0 870.00 433,070 162,010 162,010 871.00 489,600 461,335 623,345 872.00 532,650 511,125 1,134,470 875.00 639,030 1,757,520 2,891,990 Device Routing Invert Outlet Devices #1 Primary 869.00'18.0" Round Culvert L= 276.0' RCP, square edge headwall, Ke= 0.500 Inlet / Outlet Invert= 869.00' / 866.93' S= 0.0075 '/' Cc= 0.900 n= 0.013 Concrete pipe, straight & clean, Flow Area= 1.77 sf #2 Device 1 869.50'12.0" Vert. Orifice/Grate C= 0.600 #3 Device 2 869.36'18.0" Round Culvert L= 172.0' RCP, end-section conforming to fill, Ke= 0.500 Inlet / Outlet Invert= 868.50' / 869.36' S= -0.0050 '/' Cc= 0.900 n= 0.013 Concrete pipe, straight & clean, Flow Area= 1.77 sf Primary OutFlow Max=6.30 cfs @ 18.43 hrs HW=872.78' (Free Discharge) 1=Culvert (Passes 6.30 cfs of 11.55 cfs potential flow) 2=Orifice/Grate (Orifice Controls 6.30 cfs @ 8.02 fps) 3=Culvert (Passes 6.30 cfs of 10.96 cfs potential flow) MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda - Existing Printed 8/3/2018Prepared by LANDFORM Page 230HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Pond 72P: South MNDOT M9 Wetland Inflow Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)360 340 320 300 280 260 240 220 200 180 160 140 120 100 80 60 40 20 0 Inflow Area=113.390 ac Peak Elev=872.78' Storage=1,558,286 cf 322.46 cfs 6.30 cfs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda - Existing Printed 8/3/2018Prepared by LANDFORM Page 231HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Stage-Area-Storage for Pond 72P: South MNDOT M9 Wetland Elevation (feet) Surface (sq-ft) Storage (cubic-feet) 869.50 214,970 0 869.60 258,590 23,678 869.70 302,210 51,718 869.80 345,830 84,120 869.90 389,450 120,884 870.00 433,070 162,010 870.10 438,723 205,600 870.20 444,376 249,755 870.30 450,029 294,475 870.40 455,682 339,760 870.50 461,335 385,611 870.60 466,988 432,027 870.70 472,641 479,009 870.80 478,294 526,556 870.90 483,947 574,668 871.00 489,600 623,345 871.10 493,905 672,520 871.20 498,210 722,126 871.30 502,515 772,162 871.40 506,820 822,629 871.50 511,125 873,526 871.60 515,430 924,854 871.70 519,735 976,612 871.80 524,040 1,028,801 871.90 528,345 1,081,420 872.00 532,650 1,134,470 872.10 536,196 1,187,912 872.20 539,742 1,241,709 872.30 543,288 1,295,861 872.40 546,834 1,350,367 872.50 550,380 1,405,228 872.60 553,926 1,460,443 872.70 557,472 1,516,013 872.80 561,018 1,571,937 872.90 564,564 1,628,216 873.00 568,110 1,684,850 873.10 571,656 1,741,838 873.20 575,202 1,799,181 873.30 578,748 1,856,879 873.40 582,294 1,914,931 873.50 585,840 1,973,338 873.60 589,386 2,032,099 873.70 592,932 2,091,215 873.80 596,478 2,150,685 873.90 600,024 2,210,510 874.00 603,570 2,270,690 874.10 607,116 2,331,224 874.20 610,662 2,392,113 874.30 614,208 2,453,357 874.40 617,754 2,514,955 874.50 621,300 2,576,908 874.60 624,846 2,639,215 Elevation (feet) Surface (sq-ft) Storage (cubic-feet) 874.70 628,392 2,701,877 874.80 631,938 2,764,893 874.90 635,484 2,828,264 875.00 639,030 2,891,990 MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Custom Rainfall=4.27", AMC=4Avienda - Exi Printed 8/3/2018Prepared by LANDFORM Page 232HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Time span=0.00-360.00 hrs, dt=0.01 hrs, 36001 points Runoff by SCS TR-20 method, UH=SCS, Weighted-Q Reach routing by Dyn-Stor-Ind method - Pond routing by Dyn-Stor-Ind method Runoff Area=1,300,770 sf 0.00% Impervious Runoff Depth=4.03"Subcatchment 8S: South - Central to Flow Length=1,321' Tc=24.5 min AMC Adjusted CN=WQ Runoff=104.75 cfs 10.040 af Runoff Area=140,359 sf 0.00% Impervious Runoff Depth=4.03"Subcatchment 9.1S: East Woods Flow Length=530' Tc=15.2 min AMC Adjusted CN=98 Runoff=14.36 cfs 1.083 af Runoff Area=88,007 sf 0.00% Impervious Runoff Depth=4.03"Subcatchment 9.2S: Northeast Woods Flow Length=623' Tc=19.5 min AMC Adjusted CN=WQ Runoff=8.00 cfs 0.679 af Runoff Area=258,057 sf 0.00% Impervious Runoff Depth=4.03"Subcatchment 9.3S: South Flow Length=550' Tc=10.3 min AMC Adjusted CN=WQ Runoff=31.54 cfs 1.992 af Runoff Area=323,827 sf 0.00% Impervious Runoff Depth=4.03"Subcatchment 9.4S: Southeast Flow Length=912' Tc=16.5 min AMC Adjusted CN=WQ Runoff=31.81 cfs 2.499 af Runoff Area=2.080 ac 0.00% Impervious Runoff Depth=4.03"Subcatchment 71-1S: Interlacn Subcatch 1 Tc=7.0 min AMC Adjusted CN=98 Runoff=12.88 cfs 0.699 af Runoff Area=1.160 ac 100.00% Impervious Runoff Depth=4.27"Subcatchment 71-2S: Interlacn Subcatch 2 Tc=7.0 min CN=100 Runoff=7.24 cfs 0.413 af Runoff Area=0.810 ac 0.00% Impervious Runoff Depth=4.03"Subcatchment 72S: 6_Temp Tc=9.0 min AMC Adjusted CN=98 Runoff=4.57 cfs 0.272 af Runoff Area=2.360 ac 100.00% Impervious Runoff Depth=4.03"Subcatchment 73S: N68 Tc=7.0 min CN=98 Runoff=14.62 cfs 0.793 af Runoff Area=1.020 ac 0.00% Impervious Runoff Depth=4.03"Subcatchment 74S: 5_Temp Tc=9.0 min AMC Adjusted CN=98 Runoff=5.75 cfs 0.343 af Runoff Area=3.010 ac 100.00% Impervious Runoff Depth=4.03"Subcatchment 75S: 3225 Tc=7.0 min CN=98 Runoff=18.64 cfs 1.012 af Runoff Area=8.310 ac 0.00% Impervious Runoff Depth=4.03"Subcatchment 76S: 3236 Tc=14.0 min AMC Adjusted CN=98 Runoff=38.57 cfs 2.794 af Runoff Area=0.950 ac 0.00% Impervious Runoff Depth=4.03"Subcatchment 77S: 3238 Tc=7.0 min AMC Adjusted CN=98 Runoff=5.88 cfs 0.319 af Runoff Area=0.630 ac 0.00% Impervious Runoff Depth=4.03"Subcatchment 78S: 3243 Tc=7.0 min AMC Adjusted CN=98 Runoff=3.90 cfs 0.212 af Runoff Area=2.050 ac 100.00% Impervious Runoff Depth=4.03"Subcatchment 79S: 3245 Tc=7.0 min CN=98 Runoff=12.70 cfs 0.689 af Runoff Area=0.350 ac 0.00% Impervious Runoff Depth=4.03"Subcatchment 80S: 3250 Tc=7.0 min AMC Adjusted CN=98 Runoff=2.17 cfs 0.118 af MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Custom Rainfall=4.27", AMC=4Avienda - Exi Printed 8/3/2018Prepared by LANDFORM Page 233HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Runoff Area=5.950 ac 0.00% Impervious Runoff Depth=4.03"Subcatchment 81S: 3343 Tc=19.0 min AMC Adjusted CN=98 Runoff=23.72 cfs 2.000 af Runoff Area=1.480 ac 0.00% Impervious Runoff Depth=4.03"Subcatchment 82S: 3345 Tc=7.0 min AMC Adjusted CN=98 Runoff=9.17 cfs 0.498 af Runoff Area=0.700 ac 0.00% Impervious Runoff Depth=4.03"Subcatchment 83S: 3348 Tc=7.0 min AMC Adjusted CN=98 Runoff=4.34 cfs 0.235 af Runoff Area=2.100 ac 0.00% Impervious Runoff Depth=4.03"Subcatchment 84S: SE12 Tc=11.0 min AMC Adjusted CN=98 Runoff=10.87 cfs 0.706 af Runoff Area=4.530 ac 0.00% Impervious Runoff Depth=4.03"Subcatchment 85S: 1S Tc=15.0 min AMC Adjusted CN=98 Runoff=20.27 cfs 1.523 af Runoff Area=5.800 ac 0.00% Impervious Runoff Depth=4.03"Subcatchment 86S: 2S Tc=25.0 min AMC Adjusted CN=98 Runoff=20.14 cfs 1.950 af Runoff Area=21.638 ac 0.00% Impervious Runoff Depth=4.03"Subcatchment 87S: M9 Tc=29.0 min AMC Adjusted CN=98 Runoff=69.42 cfs 7.275 af Inflow=169.23 cfs 16.293 afReach 8R: South Drainage Outflow=169.23 cfs 16.293 af Inflow=112.12 cfs 10.718 afReach 9R: Wetland 4 Channel Outflow=112.12 cfs 10.718 af Avg. Flow Depth=2.00' Max Vel=7.67 fps Inflow=24.60 cfs 1.409 afReach 72R: N68 24.0" Round Pipe n=0.012 L=63.0' S=0.0075 '/' Capacity=21.17 cfs Outflow=21.80 cfs 1.409 af Peak Elev=885.12' Storage=2,541 cf Inflow=104.75 cfs 10.040 afPond 8P: Wetland 4 Outflow=104.78 cfs 10.039 af Peak Elev=874.04' Storage=235,505 cf Inflow=142.82 cfs 10.398 afPond 71P: Interlachen Outflow=24.95 cfs 10.385 af Peak Elev=872.37' Storage=1,336,316 cf Inflow=298.59 cfs 38.131 afPond 72P: South MNDOT M9 Wetland Outflow=5.83 cfs 37.756 af Total Runoff Area = 113.390 ac Runoff Volume = 38.146 af Average Runoff Depth = 4.04" 92.43% Pervious = 104.810 ac 7.57% Impervious = 8.580 ac MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Custom Rainfall=4.27", AMC=4Avienda - Exi Printed 8/3/2018Prepared by LANDFORM Page 234HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 8S: South - Central to Wetland 4 Runoff = 104.75 cfs @ 12.32 hrs, Volume= 10.040 af, Depth= 4.03" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Custom Rainfall=4.27", AMC=4 Area (sf) CN Adj Description * 15,505 79 98 Wetland 5, Pasture/grassland/range, Poor, HSG B 21,030 55 98 Woods, Good, HSG B 185,110 79 98 Pasture/grassland/range, Poor, HSG B 460,890 55 98 Woods, Good, HSG B 618,235 79 98 Pasture/grassland/range, Poor, HSG B 1,300,770 Weighted Average 1,300,770 70 98 100.00% Pervious Area, AMC Adjusted Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 7.8 100 0.0300 0.21 Sheet Flow, Range n= 0.130 P2= 2.87" 15.2 1,028 0.0260 1.13 Shallow Concentrated Flow, Short Grass Pasture Kv= 7.0 fps 1.5 193 0.0200 2.12 Shallow Concentrated Flow, Wetland Grassed Waterway Kv= 15.0 fps 24.5 1,321 Total Subcatchment 8S: South - Central to Wetland 4 Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)115 110 105 100 95 90 85 80 75 70 65 60 55 50 45 40 35 30 25 20 15 10 5 0 MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Custom Rainfall=4.27" AMC=4 Runoff Area=1,300,770 sf Runoff Volume=10.040 af Runoff Depth=4.03" Flow Length=1,321' Tc=24.5 min AMC Adjusted CN=WQ 104.75 cfs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Custom Rainfall=4.27", AMC=4Avienda - Exi Printed 8/3/2018Prepared by LANDFORM Page 235HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 9.1S: East Woods Runoff = 14.36 cfs @ 12.20 hrs, Volume= 1.083 af, Depth= 4.03" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Custom Rainfall=4.27", AMC=4 Area (sf) CN Adj Description 140,359 55 98 Woods, Good, HSG B 140,359 Weighted Average 140,359 55 98 100.00% Pervious Area, AMC Adjusted Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 11.1 75 0.0670 0.11 Sheet Flow, Woods: Light underbrush n= 0.400 P2= 2.87" 4.1 455 0.1380 1.86 Shallow Concentrated Flow, Woodland Kv= 5.0 fps 15.2 530 Total Subcatchment 9.1S: East Woods Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Custom Rainfall=4.27" AMC=4 Runoff Area=140,359 sf Runoff Volume=1.083 af Runoff Depth=4.03" Flow Length=530' Tc=15.2 min AMC Adjusted CN=98 14.36 cfs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Custom Rainfall=4.27", AMC=4Avienda - Exi Printed 8/3/2018Prepared by LANDFORM Page 236HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 9.2S: Northeast Woods Runoff = 8.00 cfs @ 12.25 hrs, Volume= 0.679 af, Depth= 4.03" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Custom Rainfall=4.27", AMC=4 Area (sf) CN Adj Description 76,845 55 98 Woods, Good, HSG B 11,162 79 98 Pasture/grassland/range, Poor, HSG B 88,007 Weighted Average 88,007 58 98 100.00% Pervious Area, AMC Adjusted Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 14.2 100 0.0650 0.12 Sheet Flow, Woods: Light underbrush n= 0.400 P2= 2.87" 5.3 523 0.1080 1.64 Shallow Concentrated Flow, Woodland Kv= 5.0 fps 19.5 623 Total Subcatchment 9.2S: Northeast Woods Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)8 7 6 5 4 3 2 1 0 MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Custom Rainfall=4.27" AMC=4 Runoff Area=88,007 sf Runoff Volume=0.679 af Runoff Depth=4.03" Flow Length=623' Tc=19.5 min AMC Adjusted CN=WQ 8.00 cfs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Custom Rainfall=4.27", AMC=4Avienda - Exi Printed 8/3/2018Prepared by LANDFORM Page 237HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 9.3S: South Runoff = 31.54 cfs @ 12.14 hrs, Volume= 1.992 af, Depth= 4.03" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Custom Rainfall=4.27", AMC=4 Area (sf) CN Adj Description 3,690 55 98 Woods, Good, HSG B 246,824 79 98 Pasture/grassland/range, Poor, HSG B 7,543 86 98 Pasture/grassland/range, Poor, HSG C 258,057 Weighted Average 258,057 79 98 100.00% Pervious Area, AMC Adjusted Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 6.5 90 0.0390 0.23 Sheet Flow, Range n= 0.130 P2= 2.87" 3.8 460 0.0850 2.04 Shallow Concentrated Flow, Short Grass Pasture Kv= 7.0 fps 10.3 550 Total Subcatchment 9.3S: South Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)34 32 30 28 26 24 22 20 18 16 14 12 10 8 6 4 2 0 MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Custom Rainfall=4.27" AMC=4 Runoff Area=258,057 sf Runoff Volume=1.992 af Runoff Depth=4.03" Flow Length=550' Tc=10.3 min AMC Adjusted CN=WQ 31.54 cfs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Custom Rainfall=4.27", AMC=4Avienda - Exi Printed 8/3/2018Prepared by LANDFORM Page 238HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 9.4S: Southeast Runoff = 31.81 cfs @ 12.21 hrs, Volume= 2.499 af, Depth= 4.03" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Custom Rainfall=4.27", AMC=4 Area (sf) CN Adj Description 4,560 55 98 Woods, Good, HSG B 2,090 58 98 Meadow, non-grazed, HSG B 313,772 79 98 Pasture/grassland/range, Poor, HSG B 3,405 86 98 Pasture/grassland/range, Poor, HSG C 323,827 Weighted Average 323,827 79 98 100.00% Pervious Area, AMC Adjusted Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 6.0 55 0.0180 0.15 Sheet Flow, Range n= 0.130 P2= 2.87" 10.5 857 0.0380 1.36 Shallow Concentrated Flow, Short Grass Pasture Kv= 7.0 fps 16.5 912 Total Subcatchment 9.4S: Southeast Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)34 32 30 28 26 24 22 20 18 16 14 12 10 8 6 4 2 0 MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Custom Rainfall=4.27" AMC=4 Runoff Area=323,827 sf Runoff Volume=2.499 af Runoff Depth=4.03" Flow Length=912' Tc=16.5 min AMC Adjusted CN=WQ 31.81 cfs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Custom Rainfall=4.27", AMC=4Avienda - Exi Printed 8/3/2018Prepared by LANDFORM Page 239HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 71-1S: Interlacn Subcatch 1 Runoff = 12.88 cfs @ 12.09 hrs, Volume= 0.699 af, Depth= 4.03" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Custom Rainfall=4.27", AMC=4 Area (ac) CN Adj Description * 2.080 84 98 Weoghted 2.080 Weighted Average 2.080 84 98 100.00% Pervious Area, AMC Adjusted Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 7.0 Direct Entry, Subcatchment 71-1S: Interlacn Subcatch 1 Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Custom Rainfall=4.27" AMC=4 Runoff Area=2.080 ac Runoff Volume=0.699 af Runoff Depth=4.03" Tc=7.0 min AMC Adjusted CN=98 12.88 cfs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Custom Rainfall=4.27", AMC=4Avienda - Exi Printed 8/3/2018Prepared by LANDFORM Page 240HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 71-2S: Interlacn Subcatch 2 Runoff = 7.24 cfs @ 12.09 hrs, Volume= 0.413 af, Depth= 4.27" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Custom Rainfall=4.27", AMC=4 Area (ac) CN Description * 1.160 100 1.160 100 100.00% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 7.0 Direct Entry, Subcatchment 71-2S: Interlacn Subcatch 2 Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)8 7 6 5 4 3 2 1 0 MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Custom Rainfall=4.27" AMC=4 Runoff Area=1.160 ac Runoff Volume=0.413 af Runoff Depth=4.27" Tc=7.0 min CN=100 7.24 cfs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Custom Rainfall=4.27", AMC=4Avienda - Exi Printed 8/3/2018Prepared by LANDFORM Page 241HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 72S: 6_Temp Runoff = 4.57 cfs @ 12.12 hrs, Volume= 0.272 af, Depth= 4.03" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Custom Rainfall=4.27", AMC=4 Area (ac) CN Adj Description * 0.810 94 98 Weighted 0.810 Weighted Average 0.810 94 98 100.00% Pervious Area, AMC Adjusted Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 9.0 Direct Entry, Subcatchment 72S: 6_Temp Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)5 4 3 2 1 0 MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Custom Rainfall=4.27" AMC=4 Runoff Area=0.810 ac Runoff Volume=0.272 af Runoff Depth=4.03" Tc=9.0 min AMC Adjusted CN=98 4.57 cfs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Custom Rainfall=4.27", AMC=4Avienda - Exi Printed 8/3/2018Prepared by LANDFORM Page 242HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 73S: N68 Runoff = 14.62 cfs @ 12.09 hrs, Volume= 0.793 af, Depth= 4.03" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Custom Rainfall=4.27", AMC=4 Area (ac) CN Description * 2.360 98 Weighted 2.360 98 100.00% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 7.0 Direct Entry, Subcatchment 73S: N68 Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Custom Rainfall=4.27" AMC=4 Runoff Area=2.360 ac Runoff Volume=0.793 af Runoff Depth=4.03" Tc=7.0 min CN=98 14.62 cfs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Custom Rainfall=4.27", AMC=4Avienda - Exi Printed 8/3/2018Prepared by LANDFORM Page 243HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 74S: 5_Temp Runoff = 5.75 cfs @ 12.12 hrs, Volume= 0.343 af, Depth= 4.03" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Custom Rainfall=4.27", AMC=4 Area (ac) CN Adj Description * 1.020 90 98 1.020 Weighted Average 1.020 90 98 100.00% Pervious Area, AMC Adjusted Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 9.0 Direct Entry, Subcatchment 74S: 5_Temp Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)6 5 4 3 2 1 0 MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Custom Rainfall=4.27" AMC=4 Runoff Area=1.020 ac Runoff Volume=0.343 af Runoff Depth=4.03" Tc=9.0 min AMC Adjusted CN=98 5.75 cfs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Custom Rainfall=4.27", AMC=4Avienda - Exi Printed 8/3/2018Prepared by LANDFORM Page 244HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 75S: 3225 Runoff = 18.64 cfs @ 12.09 hrs, Volume= 1.012 af, Depth= 4.03" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Custom Rainfall=4.27", AMC=4 Area (ac) CN Description * 3.010 98 Weighted 3.010 98 100.00% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 7.0 Direct Entry, Subcatchment 75S: 3225 Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Custom Rainfall=4.27" AMC=4 Runoff Area=3.010 ac Runoff Volume=1.012 af Runoff Depth=4.03" Tc=7.0 min CN=98 18.64 cfs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Custom Rainfall=4.27", AMC=4Avienda - Exi Printed 8/3/2018Prepared by LANDFORM Page 245HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 76S: 3236 Runoff = 38.57 cfs @ 12.18 hrs, Volume= 2.794 af, Depth= 4.03" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Custom Rainfall=4.27", AMC=4 Area (ac) CN Adj Description * 8.310 80 98 Weighted 8.310 Weighted Average 8.310 80 98 100.00% Pervious Area, AMC Adjusted Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 14.0 Direct Entry, Subcatchment 76S: 3236 Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)42 40 38 36 34 32 30 28 26 24 22 20 18 16 14 12 10 8 6 4 2 0 MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Custom Rainfall=4.27" AMC=4 Runoff Area=8.310 ac Runoff Volume=2.794 af Runoff Depth=4.03" Tc=14.0 min AMC Adjusted CN=98 38.57 cfs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Custom Rainfall=4.27", AMC=4Avienda - Exi Printed 8/3/2018Prepared by LANDFORM Page 246HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 77S: 3238 Runoff = 5.88 cfs @ 12.09 hrs, Volume= 0.319 af, Depth= 4.03" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Custom Rainfall=4.27", AMC=4 Area (ac) CN Adj Description * 0.950 83 98 Weighted 0.950 Weighted Average 0.950 83 98 100.00% Pervious Area, AMC Adjusted Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 7.0 Direct Entry, Subcatchment 77S: 3238 Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)6 5 4 3 2 1 0 MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Custom Rainfall=4.27" AMC=4 Runoff Area=0.950 ac Runoff Volume=0.319 af Runoff Depth=4.03" Tc=7.0 min AMC Adjusted CN=98 5.88 cfs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Custom Rainfall=4.27", AMC=4Avienda - Exi Printed 8/3/2018Prepared by LANDFORM Page 247HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 78S: 3243 Runoff = 3.90 cfs @ 12.09 hrs, Volume= 0.212 af, Depth= 4.03" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Custom Rainfall=4.27", AMC=4 Area (ac) CN Adj Description * 0.630 91 98 Weighted 0.630 Weighted Average 0.630 91 98 100.00% Pervious Area, AMC Adjusted Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 7.0 Direct Entry, Subcatchment 78S: 3243 Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)4 3 2 1 0 MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Custom Rainfall=4.27" AMC=4 Runoff Area=0.630 ac Runoff Volume=0.212 af Runoff Depth=4.03" Tc=7.0 min AMC Adjusted CN=98 3.90 cfs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Custom Rainfall=4.27", AMC=4Avienda - Exi Printed 8/3/2018Prepared by LANDFORM Page 248HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 79S: 3245 Runoff = 12.70 cfs @ 12.09 hrs, Volume= 0.689 af, Depth= 4.03" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Custom Rainfall=4.27", AMC=4 Area (ac) CN Description * 2.050 98 Weighted 2.050 98 100.00% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 7.0 Direct Entry, Subcatchment 79S: 3245 Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Custom Rainfall=4.27" AMC=4 Runoff Area=2.050 ac Runoff Volume=0.689 af Runoff Depth=4.03" Tc=7.0 min CN=98 12.70 cfs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Custom Rainfall=4.27", AMC=4Avienda - Exi Printed 8/3/2018Prepared by LANDFORM Page 249HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 80S: 3250 Runoff = 2.17 cfs @ 12.09 hrs, Volume= 0.118 af, Depth= 4.03" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Custom Rainfall=4.27", AMC=4 Area (ac) CN Adj Description * 0.350 90 98 Weighted 0.350 Weighted Average 0.350 90 98 100.00% Pervious Area, AMC Adjusted Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 7.0 Direct Entry, Subcatchment 80S: 3250 Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)2 1 0 MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Custom Rainfall=4.27" AMC=4 Runoff Area=0.350 ac Runoff Volume=0.118 af Runoff Depth=4.03" Tc=7.0 min AMC Adjusted CN=98 2.17 cfs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Custom Rainfall=4.27", AMC=4Avienda - Exi Printed 8/3/2018Prepared by LANDFORM Page 250HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 81S: 3343 Runoff = 23.72 cfs @ 12.24 hrs, Volume= 2.000 af, Depth= 4.03" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Custom Rainfall=4.27", AMC=4 Area (ac) CN Adj Description * 5.950 76 98 Weighted 5.950 Weighted Average 5.950 76 98 100.00% Pervious Area, AMC Adjusted Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 19.0 Direct Entry, Subcatchment 81S: 3343 Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)26 24 22 20 18 16 14 12 10 8 6 4 2 0 MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Custom Rainfall=4.27" AMC=4 Runoff Area=5.950 ac Runoff Volume=2.000 af Runoff Depth=4.03" Tc=19.0 min AMC Adjusted CN=98 23.72 cfs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Custom Rainfall=4.27", AMC=4Avienda - Exi Printed 8/3/2018Prepared by LANDFORM Page 251HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 82S: 3345 Runoff = 9.17 cfs @ 12.09 hrs, Volume= 0.498 af, Depth= 4.03" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Custom Rainfall=4.27", AMC=4 Area (ac) CN Adj Description * 1.480 78 98 Weighted 1.480 Weighted Average 1.480 78 98 100.00% Pervious Area, AMC Adjusted Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 7.0 Direct Entry, Subcatchment 82S: 3345 Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)10 9 8 7 6 5 4 3 2 1 0 MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Custom Rainfall=4.27" AMC=4 Runoff Area=1.480 ac Runoff Volume=0.498 af Runoff Depth=4.03" Tc=7.0 min AMC Adjusted CN=98 9.17 cfs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Custom Rainfall=4.27", AMC=4Avienda - Exi Printed 8/3/2018Prepared by LANDFORM Page 252HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 83S: 3348 Runoff = 4.34 cfs @ 12.09 hrs, Volume= 0.235 af, Depth= 4.03" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Custom Rainfall=4.27", AMC=4 Area (ac) CN Adj Description * 0.700 87 98 Weighted 0.700 Weighted Average 0.700 87 98 100.00% Pervious Area, AMC Adjusted Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 7.0 Direct Entry, Subcatchment 83S: 3348 Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)4 3 2 1 0 MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Custom Rainfall=4.27" AMC=4 Runoff Area=0.700 ac Runoff Volume=0.235 af Runoff Depth=4.03" Tc=7.0 min AMC Adjusted CN=98 4.34 cfs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Custom Rainfall=4.27", AMC=4Avienda - Exi Printed 8/3/2018Prepared by LANDFORM Page 253HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 84S: SE12 Runoff = 10.87 cfs @ 12.14 hrs, Volume= 0.706 af, Depth= 4.03" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Custom Rainfall=4.27", AMC=4 Area (ac) CN Adj Description * 2.100 79 98 Weighted 2.100 Weighted Average 2.100 79 98 100.00% Pervious Area, AMC Adjusted Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 11.0 Direct Entry, Subcatchment 84S: SE12 Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)12 11 10 9 8 7 6 5 4 3 2 1 0 MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Custom Rainfall=4.27" AMC=4 Runoff Area=2.100 ac Runoff Volume=0.706 af Runoff Depth=4.03" Tc=11.0 min AMC Adjusted CN=98 10.87 cfs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Custom Rainfall=4.27", AMC=4Avienda - Exi Printed 8/3/2018Prepared by LANDFORM Page 254HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 85S: 1S Runoff = 20.27 cfs @ 12.19 hrs, Volume= 1.523 af, Depth= 4.03" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Custom Rainfall=4.27", AMC=4 Area (ac) CN Adj Description * 4.530 69 98 Weighted 4.530 Weighted Average 4.530 69 98 100.00% Pervious Area, AMC Adjusted Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 15.0 Direct Entry, Subcatchment 85S: 1S Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Custom Rainfall=4.27" AMC=4 Runoff Area=4.530 ac Runoff Volume=1.523 af Runoff Depth=4.03" Tc=15.0 min AMC Adjusted CN=98 20.27 cfs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Custom Rainfall=4.27", AMC=4Avienda - Exi Printed 8/3/2018Prepared by LANDFORM Page 255HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 86S: 2S Runoff = 20.14 cfs @ 12.31 hrs, Volume= 1.950 af, Depth= 4.03" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Custom Rainfall=4.27", AMC=4 Area (ac) CN Adj Description * 5.800 69 98 Weighted 5.800 Weighted Average 5.800 69 98 100.00% Pervious Area, AMC Adjusted Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 25.0 Direct Entry, Subcatchment 86S: 2S Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Custom Rainfall=4.27" AMC=4 Runoff Area=5.800 ac Runoff Volume=1.950 af Runoff Depth=4.03" Tc=25.0 min AMC Adjusted CN=98 20.14 cfs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Custom Rainfall=4.27", AMC=4Avienda - Exi Printed 8/3/2018Prepared by LANDFORM Page 256HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 87S: M9 Runoff = 69.42 cfs @ 12.37 hrs, Volume= 7.275 af, Depth= 4.03" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Custom Rainfall=4.27", AMC=4 Area (ac) CN Adj Description * 21.638 76 98 Weighted 21.638 Weighted Average 21.638 76 98 100.00% Pervious Area, AMC Adjusted Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 29.0 Direct Entry, Subcatchment 87S: M9 Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)75 70 65 60 55 50 45 40 35 30 25 20 15 10 5 0 MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Custom Rainfall=4.27" AMC=4 Runoff Area=21.638 ac Runoff Volume=7.275 af Runoff Depth=4.03" Tc=29.0 min AMC Adjusted CN=98 69.42 cfs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Custom Rainfall=4.27", AMC=4Avienda - Exi Printed 8/3/2018Prepared by LANDFORM Page 257HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Reach 8R: South Drainage [40] Hint: Not Described (Outflow=Inflow) Inflow Area = 48.462 ac, 0.00% Impervious, Inflow Depth = 4.03" for Custom event Inflow = 169.23 cfs @ 12.25 hrs, Volume= 16.293 af Outflow = 169.23 cfs @ 12.25 hrs, Volume= 16.293 af, Atten= 0%, Lag= 0.0 min Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Reach 8R: South Drainage Inflow Outflow Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)180 170 160 150 140 130 120 110 100 90 80 70 60 50 40 30 20 10 0 Inflow Area=48.462 ac 169.23 cfs 169.23 cfs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Custom Rainfall=4.27", AMC=4Avienda - Exi Printed 8/3/2018Prepared by LANDFORM Page 258HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Reach 9R: Wetland 4 Channel [40] Hint: Not Described (Outflow=Inflow) Inflow Area = 31.882 ac, 0.00% Impervious, Inflow Depth = 4.03" for Custom event Inflow = 112.12 cfs @ 12.31 hrs, Volume= 10.718 af Outflow = 112.12 cfs @ 12.31 hrs, Volume= 10.718 af, Atten= 0%, Lag= 0.0 min Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Reach 9R: Wetland 4 Channel Inflow Outflow Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)125 120 115 110 105 100 95 90 85 80 75 70 65 60 55 50 45 40 35 30 25 20 15 10 5 0 Inflow Area=31.882 ac 112.12 cfs 112.12 cfs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Custom Rainfall=4.27", AMC=4Avienda - Exi Printed 8/3/2018Prepared by LANDFORM Page 259HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Reach 72R: N68 [52] Hint: Inlet/Outlet conditions not evaluated [55] Hint: Peak inflow is 116% of Manning's capacity [76] Warning: Detained 0.014 af (Pond w/culvert advised) Inflow Area = 4.190 ac, 56.32% Impervious, Inflow Depth = 4.03" for Custom event Inflow = 24.60 cfs @ 12.10 hrs, Volume= 1.409 af Outflow = 21.80 cfs @ 12.07 hrs, Volume= 1.409 af, Atten= 11%, Lag= 0.0 min Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Max. Velocity= 7.67 fps, Min. Travel Time= 0.1 min Avg. Velocity = 2.36 fps, Avg. Travel Time= 0.4 min Peak Storage= 198 cf @ 12.08 hrs Average Depth at Peak Storage= 2.00' Bank-Full Depth= 2.00' Flow Area= 3.1 sf, Capacity= 21.17 cfs 24.0" Round Pipe n= 0.012 Length= 63.0' Slope= 0.0075 '/' Inlet Invert= 872.00', Outlet Invert= 871.53' MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Custom Rainfall=4.27", AMC=4Avienda - Exi Printed 8/3/2018Prepared by LANDFORM Page 260HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Reach 72R: N68 Inflow Outflow Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)26 24 22 20 18 16 14 12 10 8 6 4 2 0 Inflow Area=4.190 ac Avg. Flow Depth=2.00' Max Vel=7.67 fps 24.0" Round Pipe n=0.012 L=63.0' S=0.0075 '/' Capacity=21.17 cfs 24.60 cfs 21.80 cfs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Custom Rainfall=4.27", AMC=4Avienda - Exi Printed 8/3/2018Prepared by LANDFORM Page 261HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Stage-Area-Storage for Reach 72R: N68 Elevation (feet) End-Area (sq-ft) Storage (cubic-feet) 872.00 0.0 0 872.02 0.0 0 872.04 0.0 1 872.06 0.0 2 872.08 0.0 3 872.10 0.1 4 872.12 0.1 5 872.14 0.1 6 872.16 0.1 7 872.18 0.1 9 872.20 0.2 10 872.22 0.2 12 872.24 0.2 13 872.26 0.2 15 872.28 0.3 17 872.30 0.3 19 872.32 0.3 20 872.34 0.4 22 872.36 0.4 24 872.38 0.4 26 872.40 0.4 28 872.42 0.5 30 872.44 0.5 32 872.46 0.5 34 872.48 0.6 37 872.50 0.6 39 872.52 0.6 41 872.54 0.7 43 872.56 0.7 45 872.58 0.8 48 872.60 0.8 50 872.62 0.8 52 872.64 0.9 55 872.66 0.9 57 872.68 0.9 59 872.70 1.0 62 872.72 1.0 64 872.74 1.1 67 872.76 1.1 69 872.78 1.1 71 872.80 1.2 74 872.82 1.2 76 872.84 1.3 79 872.86 1.3 81 872.88 1.3 84 872.90 1.4 86 872.92 1.4 89 872.94 1.5 91 872.96 1.5 94 872.98 1.5 96 873.00 1.6 99 873.02 1.6 101 Elevation (feet) End-Area (sq-ft) Storage (cubic-feet) 873.04 1.7 104 873.06 1.7 107 873.08 1.7 109 873.10 1.8 112 873.12 1.8 114 873.14 1.8 117 873.16 1.9 119 873.18 1.9 122 873.20 2.0 124 873.22 2.0 126 873.24 2.0 129 873.26 2.1 131 873.28 2.1 134 873.30 2.2 136 873.32 2.2 139 873.34 2.2 141 873.36 2.3 143 873.38 2.3 146 873.40 2.3 148 873.42 2.4 150 873.44 2.4 153 873.46 2.5 155 873.48 2.5 157 873.50 2.5 159 873.52 2.6 161 873.54 2.6 164 873.56 2.6 166 873.58 2.7 168 873.60 2.7 170 873.62 2.7 172 873.64 2.8 174 873.66 2.8 176 873.68 2.8 177 873.70 2.8 179 873.72 2.9 181 873.74 2.9 183 873.76 2.9 184 873.78 3.0 186 873.80 3.0 188 873.82 3.0 189 873.84 3.0 191 873.86 3.0 192 873.88 3.1 193 873.90 3.1 194 873.92 3.1 195 873.94 3.1 196 873.96 3.1 197 873.98 3.1 198 874.00 3.1 198 MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Custom Rainfall=4.27", AMC=4Avienda - Exi Printed 8/3/2018Prepared by LANDFORM Page 262HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Pond 8P: Wetland 4 [90] Warning: Qout>Qin may require smaller dt or Finer Routing Inflow Area = 29.862 ac, 0.00% Impervious, Inflow Depth = 4.03" for Custom event Inflow = 104.75 cfs @ 12.32 hrs, Volume= 10.040 af Outflow = 104.78 cfs @ 12.33 hrs, Volume= 10.039 af, Atten= 0%, Lag= 0.1 min Primary = 104.78 cfs @ 12.33 hrs, Volume= 10.039 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 885.12' @ 12.33 hrs Surf.Area= 4,024 sf Storage= 2,541 cf Plug-Flow detention time= 1.4 min calculated for 10.039 af (100% of inflow) Center-of-Mass det. time= 1.1 min ( 764.7 - 763.6 ) Volume Invert Avail.Storage Storage Description #1 884.00' 37,633 cf Custom Stage Data (Prismatic) Listed below (Recalc) Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 884.00 870 0 0 884.50 1,980 713 713 885.00 3,500 1,370 2,083 886.00 7,800 5,650 7,733 887.00 14,000 10,900 18,633 888.00 24,000 19,000 37,633 Device Routing Invert Outlet Devices #1 Primary 884.03'Asymmetrical Weir, C= 3.27 Offset (feet) 0.00 51.00 133.60 176.00 217.30 239.00 Elev. (feet) 889.78 886.05 884.03 885.84 889.00 889.78 Primary OutFlow Max=104.73 cfs @ 12.33 hrs HW=885.12' TW=0.00' (Dynamic Tailwater) 1=Asymmetrical Weir (Weir Controls 104.73 cfs @ 1.37 fps) MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Custom Rainfall=4.27", AMC=4Avienda - Exi Printed 8/3/2018Prepared by LANDFORM Page 263HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Pond 8P: Wetland 4 Inflow Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)115 110 105 100 95 90 85 80 75 70 65 60 55 50 45 40 35 30 25 20 15 10 5 0 Inflow Area=29.862 ac Peak Elev=885.12' Storage=2,541 cf 104.75 cfs 104.78 cfs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Custom Rainfall=4.27", AMC=4Avienda - Exi Printed 8/3/2018Prepared by LANDFORM Page 264HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Stage-Area-Storage for Pond 8P: Wetland 4 Elevation (feet) Surface (sq-ft) Storage (cubic-feet) 884.00 870 0 884.10 1,092 98 884.20 1,314 218 884.30 1,536 361 884.40 1,758 526 884.50 1,980 713 884.60 2,284 926 884.70 2,588 1,169 884.80 2,892 1,443 884.90 3,196 1,748 885.00 3,500 2,083 885.10 3,930 2,454 885.20 4,360 2,869 885.30 4,790 3,326 885.40 5,220 3,826 885.50 5,650 4,370 885.60 6,080 4,957 885.70 6,510 5,586 885.80 6,940 6,258 885.90 7,370 6,974 886.00 7,800 7,733 886.10 8,420 8,544 886.20 9,040 9,417 886.30 9,660 10,351 886.40 10,280 11,348 886.50 10,900 12,408 886.60 11,520 13,529 886.70 12,140 14,712 886.80 12,760 15,956 886.90 13,380 17,263 887.00 14,000 18,633 887.10 15,000 20,083 887.20 16,000 21,633 887.30 17,000 23,282 887.40 18,000 25,032 887.50 19,000 26,883 887.60 20,000 28,833 887.70 21,000 30,883 887.80 22,000 33,032 887.90 23,000 35,282 888.00 24,000 37,633 888.10 24,000 37,633 888.20 24,000 37,633 888.30 24,000 37,633 888.40 24,000 37,633 888.50 24,000 37,633 888.60 24,000 37,633 888.70 24,000 37,633 888.80 24,000 37,633 888.90 24,000 37,633 889.00 24,000 37,633 889.10 24,000 37,633 Elevation (feet) Surface (sq-ft) Storage (cubic-feet) 889.20 24,000 37,633 889.30 24,000 37,633 889.40 24,000 37,633 889.50 24,000 37,633 889.60 24,000 37,633 889.70 24,000 37,633 MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Custom Rainfall=4.27", AMC=4Avienda - Exi Printed 8/3/2018Prepared by LANDFORM Page 265HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Pond 71P: Interlachen [63] Warning: Exceeded Reach 72R INLET depth by 1.59' @ 12.75 hrs Inflow Area = 30.860 ac, 27.80% Impervious, Inflow Depth = 4.04" for Custom event Inflow = 142.82 cfs @ 12.11 hrs, Volume= 10.398 af Outflow = 24.95 cfs @ 12.37 hrs, Volume= 10.385 af, Atten= 83%, Lag= 15.4 min Primary = 24.95 cfs @ 12.37 hrs, Volume= 10.385 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 874.04' @ 12.69 hrs Surf.Area= 68,737 sf Storage= 235,505 cf Plug-Flow detention time= 953.8 min calculated for 10.384 af (100% of inflow) Center-of-Mass det. time= 953.4 min ( 1,704.0 - 750.6 ) Volume Invert Avail.Storage Storage Description #1 870.00' 381,460 cf Custom Stage Data (Prismatic) Listed below (Recalc) Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 870.00 50,570 0 0 872.00 56,860 107,430 107,430 875.00 74,330 196,785 304,215 876.00 80,160 77,245 381,460 Device Routing Invert Outlet Devices #1 Primary 870.00'24.0" Round Culvert L= 33.0' RCP, square edge headwall, Ke= 0.500 Inlet / Outlet Invert= 870.00' / 869.67' S= 0.0100 '/' Cc= 0.900 n= 0.012, Flow Area= 3.14 sf #2 Device 1 866.61'24.0" Round Culvert L= 21.0' RCP, end-section conforming to fill, Ke= 0.500 Inlet / Outlet Invert= 866.50' / 866.61' S= -0.0052 '/' Cc= 0.900 n= 0.012, Flow Area= 3.14 sf Primary OutFlow Max=24.86 cfs @ 12.37 hrs HW=873.78' TW=871.08' (Dynamic Tailwater) 1=Culvert ( Controls 24.86 cfs) 2=Culvert (Inlet Controls 24.86 cfs @ 7.91 fps) MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Custom Rainfall=4.27", AMC=4Avienda - Exi Printed 8/3/2018Prepared by LANDFORM Page 266HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Pond 71P: Interlachen Inflow Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)150 140 130 120 110 100 90 80 70 60 50 40 30 20 10 0 Inflow Area=30.860 ac Peak Elev=874.04' Storage=235,505 cf 142.82 cfs 24.95 cfs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Custom Rainfall=4.27", AMC=4Avienda - Exi Printed 8/3/2018Prepared by LANDFORM Page 267HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Stage-Area-Storage for Pond 71P: Interlachen Elevation (feet) Surface (sq-ft) Storage (cubic-feet) 870.00 50,570 0 870.10 50,885 5,073 870.20 51,199 10,177 870.30 51,513 15,313 870.40 51,828 20,480 870.50 52,143 25,678 870.60 52,457 30,908 870.70 52,772 36,170 870.80 53,086 41,462 870.90 53,400 46,787 871.00 53,715 52,143 871.10 54,030 57,530 871.20 54,344 62,948 871.30 54,658 68,399 871.40 54,973 73,880 871.50 55,288 79,393 871.60 55,602 84,938 871.70 55,917 90,514 871.80 56,231 96,121 871.90 56,545 101,760 872.00 56,860 107,430 872.10 57,442 113,145 872.20 58,025 118,918 872.30 58,607 124,750 872.40 59,189 130,640 872.50 59,772 136,588 872.60 60,354 142,594 872.70 60,936 148,659 872.80 61,519 154,781 872.90 62,101 160,962 873.00 62,683 167,202 873.10 63,266 173,499 873.20 63,848 179,855 873.30 64,430 186,269 873.40 65,013 192,741 873.50 65,595 199,271 873.60 66,177 205,860 873.70 66,760 212,507 873.80 67,342 219,212 873.90 67,924 225,975 874.00 68,507 232,797 874.10 69,089 239,676 874.20 69,671 246,614 874.30 70,254 253,611 874.40 70,836 260,665 874.50 71,418 267,778 874.60 72,001 274,949 874.70 72,583 282,178 874.80 73,165 289,465 874.90 73,748 296,811 875.00 74,330 304,215 875.10 74,913 311,677 Elevation (feet) Surface (sq-ft) Storage (cubic-feet) 875.20 75,496 319,198 875.30 76,079 326,776 875.40 76,662 334,413 875.50 77,245 342,109 875.60 77,828 349,862 875.70 78,411 357,674 875.80 78,994 365,545 875.90 79,577 373,473 876.00 80,160 381,460 MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Custom Rainfall=4.27", AMC=4Avienda - Exi Printed 8/3/2018Prepared by LANDFORM Page 268HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Pond 72P: South MNDOT M9 Wetland Inflow Area = 113.390 ac, 7.57% Impervious, Inflow Depth = 4.04" for Custom event Inflow = 298.59 cfs @ 12.28 hrs, Volume= 38.131 af Outflow = 5.83 cfs @ 18.31 hrs, Volume= 37.756 af, Atten= 98%, Lag= 362.2 min Primary = 5.83 cfs @ 18.31 hrs, Volume= 37.756 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 872.37' @ 18.31 hrs Surf.Area= 545,922 sf Storage= 1,336,316 cf Plug-Flow detention time= 3,073.9 min calculated for 37.756 af (99% of inflow) Center-of-Mass det. time= 3,005.3 min ( 4,024.0 - 1,018.7 ) Volume Invert Avail.Storage Storage Description #1 869.50' 2,891,990 cf Custom Stage Data (Prismatic) Listed below (Recalc) Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 869.50 214,970 0 0 870.00 433,070 162,010 162,010 871.00 489,600 461,335 623,345 872.00 532,650 511,125 1,134,470 875.00 639,030 1,757,520 2,891,990 Device Routing Invert Outlet Devices #1 Primary 869.00'18.0" Round Culvert L= 276.0' RCP, square edge headwall, Ke= 0.500 Inlet / Outlet Invert= 869.00' / 866.93' S= 0.0075 '/' Cc= 0.900 n= 0.013 Concrete pipe, straight & clean, Flow Area= 1.77 sf #2 Device 1 869.50'12.0" Vert. Orifice/Grate C= 0.600 #3 Device 2 869.36'18.0" Round Culvert L= 172.0' RCP, end-section conforming to fill, Ke= 0.500 Inlet / Outlet Invert= 868.50' / 869.36' S= -0.0050 '/' Cc= 0.900 n= 0.013 Concrete pipe, straight & clean, Flow Area= 1.77 sf Primary OutFlow Max=5.83 cfs @ 18.31 hrs HW=872.37' (Free Discharge) 1=Culvert (Passes 5.83 cfs of 11.01 cfs potential flow) 2=Orifice/Grate (Orifice Controls 5.83 cfs @ 7.42 fps) 3=Culvert (Passes 5.83 cfs of 10.14 cfs potential flow) MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Custom Rainfall=4.27", AMC=4Avienda - Exi Printed 8/3/2018Prepared by LANDFORM Page 269HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Pond 72P: South MNDOT M9 Wetland Inflow Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)320 300 280 260 240 220 200 180 160 140 120 100 80 60 40 20 0 Inflow Area=113.390 ac Peak Elev=872.37' Storage=1,336,316 cf 298.59 cfs 5.83 cfs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Custom Rainfall=4.27", AMC=4Avienda - Exi Printed 8/3/2018Prepared by LANDFORM Page 270HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Stage-Area-Storage for Pond 72P: South MNDOT M9 Wetland Elevation (feet) Surface (sq-ft) Storage (cubic-feet) 869.50 214,970 0 869.60 258,590 23,678 869.70 302,210 51,718 869.80 345,830 84,120 869.90 389,450 120,884 870.00 433,070 162,010 870.10 438,723 205,600 870.20 444,376 249,755 870.30 450,029 294,475 870.40 455,682 339,760 870.50 461,335 385,611 870.60 466,988 432,027 870.70 472,641 479,009 870.80 478,294 526,556 870.90 483,947 574,668 871.00 489,600 623,345 871.10 493,905 672,520 871.20 498,210 722,126 871.30 502,515 772,162 871.40 506,820 822,629 871.50 511,125 873,526 871.60 515,430 924,854 871.70 519,735 976,612 871.80 524,040 1,028,801 871.90 528,345 1,081,420 872.00 532,650 1,134,470 872.10 536,196 1,187,912 872.20 539,742 1,241,709 872.30 543,288 1,295,861 872.40 546,834 1,350,367 872.50 550,380 1,405,228 872.60 553,926 1,460,443 872.70 557,472 1,516,013 872.80 561,018 1,571,937 872.90 564,564 1,628,216 873.00 568,110 1,684,850 873.10 571,656 1,741,838 873.20 575,202 1,799,181 873.30 578,748 1,856,879 873.40 582,294 1,914,931 873.50 585,840 1,973,338 873.60 589,386 2,032,099 873.70 592,932 2,091,215 873.80 596,478 2,150,685 873.90 600,024 2,210,510 874.00 603,570 2,270,690 874.10 607,116 2,331,224 874.20 610,662 2,392,113 874.30 614,208 2,453,357 874.40 617,754 2,514,955 874.50 621,300 2,576,908 874.60 624,846 2,639,215 Elevation (feet) Surface (sq-ft) Storage (cubic-feet) 874.70 628,392 2,701,877 874.80 631,938 2,764,893 874.90 635,484 2,828,264 875.00 639,030 2,891,990 0S Lake Susan Drainage (Hwy 212 Design) 0P Powers Culvert --- (Hwy 212 Design) Routing Diagram for Avienda - ZRC Design Check Prepared by LANDFORM, Printed 5/22/2018 HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Subcat Reach Pond Link MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda - ZRC Design Check Printed 5/22/2018Prepared by LANDFORM Page 2HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Time span=5.00-20.00 hrs, dt=0.05 hrs, 301 points Runoff by SCS TR-20 method, UH=SCS, Weighted-CN Reach routing by Stor-Ind+Trans method - Pond routing by Stor-Ind method Runoff Area=41.400 ac 65.00% Impervious Runoff Depth>1.38"Subcatchment 0S: Lake Susan Drainage Tc=20.0 min CN=85 Runoff=64.04 cfs 4.763 af Peak Elev=899.23' Storage=4,217 cf Inflow=64.04 cfs 4.763 afPond 0P: Powers Culvert --- (Hwy 212 54.0" Round Culvert n=0.013 L=200.0' S=0.0050 '/' Outflow=62.29 cfs 4.762 af Total Runoff Area = 41.400 ac Runoff Volume = 4.763 af Average Runoff Depth = 1.38" 35.00% Pervious = 14.490 ac 65.00% Impervious = 26.910 ac MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda - ZRC Design Check Printed 5/22/2018Prepared by LANDFORM Page 3HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 0S: Lake Susan Drainage (Hwy 212 Design) ZRC Design for Hwy 212 Runoff = 64.04 cfs @ 12.27 hrs, Volume= 4.763 af, Depth> 1.38" Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 5.00-20.00 hrs, dt= 0.05 hrs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Area (ac) CN Description 41.400 85 1/8 acre lots, 65% imp, HSG B 14.490 35.00% Pervious Area 26.910 65.00% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 20.0 Direct Entry, Subcatchment 0S: Lake Susan Drainage (Hwy 212 Design) Runoff Hydrograph Time (hours) 201918171615141312111098765Flow (cfs)70 65 60 55 50 45 40 35 30 25 20 15 10 5 0 MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Runoff Area=41.400 ac Runoff Volume=4.763 af Runoff Depth>1.38" Tc=20.0 min CN=85 64.04 cfs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda - ZRC Design Check Printed 5/22/2018Prepared by LANDFORM Page 4HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Pond 0P: Powers Culvert --- (Hwy 212 Design) Inflow Area = 41.400 ac, 65.00% Impervious, Inflow Depth > 1.38" for 2y 24hr event Inflow = 64.04 cfs @ 12.27 hrs, Volume= 4.763 af Outflow = 62.29 cfs @ 12.31 hrs, Volume= 4.762 af, Atten= 3%, Lag= 2.4 min Primary = 62.29 cfs @ 12.31 hrs, Volume= 4.762 af Routing by Stor-Ind method, Time Span= 5.00-20.00 hrs, dt= 0.05 hrs Peak Elev= 899.23' @ 12.31 hrs Surf.Area= 5,064 sf Storage= 4,217 cf Plug-Flow detention time= 0.7 min calculated for 4.762 af (100% of inflow) Center-of-Mass det. time= 0.6 min ( 794.9 - 794.3 ) Volume Invert Avail.Storage Storage Description #1 896.00' 162,320 cf Custom Stage Data (Prismatic) Listed below (Recalc) Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 896.00 10 0 0 898.00 960 970 970 899.00 3,520 2,240 3,210 900.00 10,100 6,810 10,020 901.00 16,000 13,050 23,070 902.00 24,900 20,450 43,520 903.00 33,200 29,050 72,570 904.00 44,700 38,950 111,520 905.00 56,900 50,800 162,320 Device Routing Invert Outlet Devices #1 Primary 896.00'54.0" Round Culvert L= 200.0' RCP, end-section conforming to fill, Ke= 0.500 Inlet / Outlet Invert= 896.00' / 895.00' S= 0.0050 '/' Cc= 0.900 n= 0.013 Concrete pipe, straight & clean, Flow Area= 15.90 sf Primary OutFlow Max=61.85 cfs @ 12.31 hrs HW=899.22' (Free Discharge) 1=Culvert (Barrel Controls 61.85 cfs @ 7.11 fps) MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda - ZRC Design Check Printed 5/22/2018Prepared by LANDFORM Page 5HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Pond 0P: Powers Culvert --- (Hwy 212 Design) Inflow Primary Hydrograph Time (hours) 201918171615141312111098765Flow (cfs)70 65 60 55 50 45 40 35 30 25 20 15 10 5 0 Inflow Area=41.400 ac Peak Elev=899.23' Storage=4,217 cf 54.0" Round Culvert n=0.013 L=200.0' S=0.0050 '/' 64.04 cfs 62.29 cfs MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4Avienda - ZRC Design Che Printed 5/22/2018Prepared by LANDFORM Page 6HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Time span=5.00-20.00 hrs, dt=0.05 hrs, 301 points Runoff by SCS TR-20 method, UH=SCS, Weighted-CN Reach routing by Stor-Ind+Trans method - Pond routing by Stor-Ind method Runoff Area=41.400 ac 65.00% Impervious Runoff Depth>0.13"Subcatchment 0S: Lake Susan Drainage Tc=20.0 min AMC Adjusted CN=98 Runoff=0.57 cfs 0.442 af Peak Elev=896.28' Storage=21 cf Inflow=0.57 cfs 0.442 afPond 0P: Powers Culvert --- (Hwy 212 Design) 54.0" Round Culvert n=0.013 L=200.0' S=0.0050 '/' Outflow=0.57 cfs 0.442 af Total Runoff Area = 41.400 ac Runoff Volume = 0.442 af Average Runoff Depth = 0.13" 35.00% Pervious = 14.490 ac 65.00% Impervious = 26.910 ac MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4Avienda - ZRC Design Che Printed 5/22/2018Prepared by LANDFORM Page 7HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 0S: Lake Susan Drainage (Hwy 212 Design) ZRC Design for Hwy 212 [73] Warning: Peak may fall outside time span Runoff = 0.57 cfs @ 20.00 hrs, Volume= 0.442 af, Depth> 0.13" Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 5.00-20.00 hrs, dt= 0.05 hrs MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4 Area (ac) CN Adj Description 41.400 85 1/8 acre lots, 65% imp, HSG B 41.400 85 98 Weighted Average, AMC Adjusted 14.490 35.00% Pervious Area 26.910 65.00% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 20.0 Direct Entry, Subcatchment 0S: Lake Susan Drainage (Hwy 212 Design) Runoff Hydrograph Time (hours) 201918171615141312111098765Flow (cfs)0.6 0.55 0.5 0.45 0.4 0.35 0.3 0.25 0.2 0.15 0.1 0.05 0 MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20" AMC=4 Runoff Area=41.400 ac Runoff Volume=0.442 af Runoff Depth>0.13" Tc=20.0 min AMC Adjusted CN=98 0.57 cfs MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4Avienda - ZRC Design Che Printed 5/22/2018Prepared by LANDFORM Page 8HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Pond 0P: Powers Culvert --- (Hwy 212 Design) Inflow Area = 41.400 ac, 65.00% Impervious, Inflow Depth > 0.13" for 10 day snowmelt event Inflow = 0.57 cfs @ 20.00 hrs, Volume= 0.442 af Outflow = 0.57 cfs @ 20.00 hrs, Volume= 0.442 af, Atten= 0%, Lag= 0.0 min Primary = 0.57 cfs @ 20.00 hrs, Volume= 0.442 af Routing by Stor-Ind method, Time Span= 5.00-20.00 hrs, dt= 0.05 hrs Peak Elev= 896.28' @ 20.00 hrs Surf.Area= 143 sf Storage= 21 cf Plug-Flow detention time= 0.7 min calculated for 0.440 af (100% of inflow) Center-of-Mass det. time= 0.3 min ( 870.6 - 870.3 ) Volume Invert Avail.Storage Storage Description #1 896.00' 162,320 cf Custom Stage Data (Prismatic) Listed below (Recalc) Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 896.00 10 0 0 898.00 960 970 970 899.00 3,520 2,240 3,210 900.00 10,100 6,810 10,020 901.00 16,000 13,050 23,070 902.00 24,900 20,450 43,520 903.00 33,200 29,050 72,570 904.00 44,700 38,950 111,520 905.00 56,900 50,800 162,320 Device Routing Invert Outlet Devices #1 Primary 896.00'54.0" Round Culvert L= 200.0' RCP, end-section conforming to fill, Ke= 0.500 Inlet / Outlet Invert= 896.00' / 895.00' S= 0.0050 '/' Cc= 0.900 n= 0.013 Concrete pipe, straight & clean, Flow Area= 15.90 sf Primary OutFlow Max=0.56 cfs @ 20.00 hrs HW=896.28' (Free Discharge) 1=Culvert (Barrel Controls 0.56 cfs @ 2.11 fps) MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4Avienda - ZRC Design Che Printed 5/22/2018Prepared by LANDFORM Page 9HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Pond 0P: Powers Culvert --- (Hwy 212 Design) Inflow Primary Hydrograph Time (hours) 201918171615141312111098765Flow (cfs)0.6 0.55 0.5 0.45 0.4 0.35 0.3 0.25 0.2 0.15 0.1 0.05 0 Inflow Area=41.400 ac Peak Elev=896.28' Storage=21 cf 54.0" Round Culvert n=0.013 L=200.0' S=0.0050 '/' 0.57 cfs 0.57 cfs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda - ZRC Design Check Printed 5/22/2018Prepared by LANDFORM Page 10HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Time span=5.00-20.00 hrs, dt=0.05 hrs, 301 points Runoff by SCS TR-20 method, UH=SCS, Weighted-CN Reach routing by Stor-Ind+Trans method - Pond routing by Stor-Ind method Runoff Area=41.400 ac 65.00% Impervious Runoff Depth>2.60"Subcatchment 0S: Lake Susan Drainage Tc=20.0 min CN=85 Runoff=119.93 cfs 8.984 af Peak Elev=900.68' Storage=18,187 cf Inflow=119.93 cfs 8.984 afPond 0P: Powers Culvert --- (Hwy 212 54.0" Round Culvert n=0.013 L=200.0' S=0.0050 '/' Outflow=107.10 cfs 8.983 af Total Runoff Area = 41.400 ac Runoff Volume = 8.984 af Average Runoff Depth = 2.60" 35.00% Pervious = 14.490 ac 65.00% Impervious = 26.910 ac MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda - ZRC Design Check Printed 5/22/2018Prepared by LANDFORM Page 11HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 0S: Lake Susan Drainage (Hwy 212 Design) ZRC Design for Hwy 212 Runoff = 119.93 cfs @ 12.27 hrs, Volume= 8.984 af, Depth> 2.60" Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 5.00-20.00 hrs, dt= 0.05 hrs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Area (ac) CN Description 41.400 85 1/8 acre lots, 65% imp, HSG B 14.490 35.00% Pervious Area 26.910 65.00% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 20.0 Direct Entry, Subcatchment 0S: Lake Susan Drainage (Hwy 212 Design) Runoff Hydrograph Time (hours) 201918171615141312111098765Flow (cfs)130 120 110 100 90 80 70 60 50 40 30 20 10 0 MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Runoff Area=41.400 ac Runoff Volume=8.984 af Runoff Depth>2.60" Tc=20.0 min CN=85 119.93 cfs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda - ZRC Design Check Printed 5/22/2018Prepared by LANDFORM Page 12HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Pond 0P: Powers Culvert --- (Hwy 212 Design) Inflow Area = 41.400 ac, 65.00% Impervious, Inflow Depth > 2.60" for 10y 24hr event Inflow = 119.93 cfs @ 12.27 hrs, Volume= 8.984 af Outflow = 107.10 cfs @ 12.36 hrs, Volume= 8.983 af, Atten= 11%, Lag= 5.2 min Primary = 107.10 cfs @ 12.36 hrs, Volume= 8.983 af Routing by Stor-Ind method, Time Span= 5.00-20.00 hrs, dt= 0.05 hrs Peak Elev= 900.68' @ 12.36 hrs Surf.Area= 14,085 sf Storage= 18,187 cf Plug-Flow detention time= 1.3 min calculated for 8.953 af (100% of inflow) Center-of-Mass det. time= 1.2 min ( 782.8 - 781.5 ) Volume Invert Avail.Storage Storage Description #1 896.00' 162,320 cf Custom Stage Data (Prismatic) Listed below (Recalc) Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 896.00 10 0 0 898.00 960 970 970 899.00 3,520 2,240 3,210 900.00 10,100 6,810 10,020 901.00 16,000 13,050 23,070 902.00 24,900 20,450 43,520 903.00 33,200 29,050 72,570 904.00 44,700 38,950 111,520 905.00 56,900 50,800 162,320 Device Routing Invert Outlet Devices #1 Primary 896.00'54.0" Round Culvert L= 200.0' RCP, end-section conforming to fill, Ke= 0.500 Inlet / Outlet Invert= 896.00' / 895.00' S= 0.0050 '/' Cc= 0.900 n= 0.013 Concrete pipe, straight & clean, Flow Area= 15.90 sf Primary OutFlow Max=106.88 cfs @ 12.36 hrs HW=900.67' (Free Discharge) 1=Culvert (Barrel Controls 106.88 cfs @ 8.05 fps) MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda - ZRC Design Check Printed 5/22/2018Prepared by LANDFORM Page 13HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Pond 0P: Powers Culvert --- (Hwy 212 Design) Inflow Primary Hydrograph Time (hours) 201918171615141312111098765Flow (cfs)130 120 110 100 90 80 70 60 50 40 30 20 10 0 Inflow Area=41.400 ac Peak Elev=900.68' Storage=18,187 cf 54.0" Round Culvert n=0.013 L=200.0' S=0.0050 '/' 119.93 cfs 107.10 cfs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda - ZRC Design Che Printed 5/22/2018Prepared by LANDFORM Page 14HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Time span=5.00-20.00 hrs, dt=0.05 hrs, 301 points Runoff by SCS TR-20 method, UH=SCS, Weighted-CN Reach routing by Stor-Ind+Trans method - Pond routing by Stor-Ind method Runoff Area=41.400 ac 65.00% Impervious Runoff Depth>5.52"Subcatchment 0S: Lake Susan Drainage Tc=20.0 min CN=85 Runoff=230.00 cfs 19.038 af Peak Elev=903.30' Storage=83,201 cf Inflow=230.00 cfs 19.038 afPond 0P: Powers Culvert --- (Hwy 212 54.0" Round Culvert n=0.013 L=200.0' S=0.0050 '/' Outflow=162.54 cfs 19.037 af Total Runoff Area = 41.400 ac Runoff Volume = 19.038 af Average Runoff Depth = 5.52" 35.00% Pervious = 14.490 ac 65.00% Impervious = 26.910 ac MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda - ZRC Design Che Printed 5/22/2018Prepared by LANDFORM Page 15HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 0S: Lake Susan Drainage (Hwy 212 Design) ZRC Design for Hwy 212 Runoff = 230.00 cfs @ 12.26 hrs, Volume= 19.038 af, Depth> 5.52" Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 5.00-20.00 hrs, dt= 0.05 hrs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Area (ac) CN Description 41.400 85 1/8 acre lots, 65% imp, HSG B 14.490 35.00% Pervious Area 26.910 65.00% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 20.0 Direct Entry, Subcatchment 0S: Lake Susan Drainage (Hwy 212 Design) Runoff Hydrograph Time (hours) 201918171615141312111098765Flow (cfs)250 240 230 220 210 200 190 180 170 160 150 140 130 120 110 100 90 80 70 60 50 40 30 20 10 0 MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Runoff Area=41.400 ac Runoff Volume=19.038 af Runoff Depth>5.52" Tc=20.0 min CN=85 230.00 cfs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda - ZRC Design Che Printed 5/22/2018Prepared by LANDFORM Page 16HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Pond 0P: Powers Culvert --- (Hwy 212 Design) Inflow Area = 41.400 ac, 65.00% Impervious, Inflow Depth > 5.52" for 100y 24hr event Inflow = 230.00 cfs @ 12.26 hrs, Volume= 19.038 af Outflow = 162.54 cfs @ 12.44 hrs, Volume= 19.037 af, Atten= 29%, Lag= 10.5 min Primary = 162.54 cfs @ 12.44 hrs, Volume= 19.037 af Routing by Stor-Ind method, Time Span= 5.00-20.00 hrs, dt= 0.05 hrs Peak Elev= 903.30' @ 12.44 hrs Surf.Area= 36,698 sf Storage= 83,201 cf Plug-Flow detention time= 3.5 min calculated for 18.973 af (100% of inflow) Center-of-Mass det. time= 3.5 min ( 770.3 - 766.9 ) Volume Invert Avail.Storage Storage Description #1 896.00' 162,320 cf Custom Stage Data (Prismatic) Listed below (Recalc) Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 896.00 10 0 0 898.00 960 970 970 899.00 3,520 2,240 3,210 900.00 10,100 6,810 10,020 901.00 16,000 13,050 23,070 902.00 24,900 20,450 43,520 903.00 33,200 29,050 72,570 904.00 44,700 38,950 111,520 905.00 56,900 50,800 162,320 Device Routing Invert Outlet Devices #1 Primary 896.00'54.0" Round Culvert L= 200.0' RCP, end-section conforming to fill, Ke= 0.500 Inlet / Outlet Invert= 896.00' / 895.00' S= 0.0050 '/' Cc= 0.900 n= 0.013 Concrete pipe, straight & clean, Flow Area= 15.90 sf Primary OutFlow Max=162.33 cfs @ 12.44 hrs HW=903.29' (Free Discharge) 1=Culvert (Barrel Controls 162.33 cfs @ 10.21 fps) MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda - ZRC Design Che Printed 5/22/2018Prepared by LANDFORM Page 17HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Pond 0P: Powers Culvert --- (Hwy 212 Design) Inflow Primary Hydrograph Time (hours) 201918171615141312111098765Flow (cfs)240 220 200 180 160 140 120 100 80 60 40 20 0 Inflow Area=41.400 ac Peak Elev=903.30' Storage=83,201 cf 54.0" Round Culvert n=0.013 L=200.0' S=0.0050 '/' 230.00 cfs 162.54 cfs Type II 24-hr 100y 24hr Old Rainfall=6.00"Avienda - ZRC Design Check Printed 5/22/2018Prepared by LANDFORM Page 18HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Time span=5.00-20.00 hrs, dt=0.05 hrs, 301 points Runoff by SCS TR-20 method, UH=SCS, Weighted-CN Reach routing by Stor-Ind+Trans method - Pond routing by Stor-Ind method Runoff Area=41.400 ac 65.00% Impervious Runoff Depth>4.01"Subcatchment 0S: Lake Susan Drainage Tc=20.0 min CN=85 Runoff=193.94 cfs 13.834 af Peak Elev=902.42' Storage=54,799 cf Inflow=193.94 cfs 13.834 afPond 0P: Powers Culvert --- (Hwy 212 54.0" Round Culvert n=0.013 L=200.0' S=0.0050 '/' Outflow=142.47 cfs 13.832 af Total Runoff Area = 41.400 ac Runoff Volume = 13.834 af Average Runoff Depth = 4.01" 35.00% Pervious = 14.490 ac 65.00% Impervious = 26.910 ac Type II 24-hr 100y 24hr Old Rainfall=6.00"Avienda - ZRC Design Check Printed 5/22/2018Prepared by LANDFORM Page 19HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 0S: Lake Susan Drainage (Hwy 212 Design) ZRC Design for Hwy 212 Runoff = 193.94 cfs @ 12.12 hrs, Volume= 13.834 af, Depth> 4.01" Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 5.00-20.00 hrs, dt= 0.05 hrs Type II 24-hr 100y 24hr Old Rainfall=6.00" Area (ac) CN Description 41.400 85 1/8 acre lots, 65% imp, HSG B 14.490 35.00% Pervious Area 26.910 65.00% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 20.0 Direct Entry, Subcatchment 0S: Lake Susan Drainage (Hwy 212 Design) Runoff Hydrograph Time (hours) 201918171615141312111098765Flow (cfs)210 200 190 180 170 160 150 140 130 120 110 100 90 80 70 60 50 40 30 20 10 0 Type II 24-hr 100y 24hr Old Rainfall=6.00" Runoff Area=41.400 ac Runoff Volume=13.834 af Runoff Depth>4.01" Tc=20.0 min CN=85 193.94 cfs Type II 24-hr 100y 24hr Old Rainfall=6.00"Avienda - ZRC Design Check Printed 5/22/2018Prepared by LANDFORM Page 20HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Pond 0P: Powers Culvert --- (Hwy 212 Design) Inflow Area = 41.400 ac, 65.00% Impervious, Inflow Depth > 4.01" for 100y 24hr Old event Inflow = 193.94 cfs @ 12.12 hrs, Volume= 13.834 af Outflow = 142.47 cfs @ 12.25 hrs, Volume= 13.832 af, Atten= 27%, Lag= 7.7 min Primary = 142.47 cfs @ 12.25 hrs, Volume= 13.832 af Routing by Stor-Ind method, Time Span= 5.00-20.00 hrs, dt= 0.05 hrs Peak Elev= 902.42' @ 12.25 hrs Surf.Area= 28,412 sf Storage= 54,799 cf Plug-Flow detention time= 2.4 min calculated for 13.786 af (100% of inflow) Center-of-Mass det. time= 2.3 min ( 775.2 - 772.9 ) Volume Invert Avail.Storage Storage Description #1 896.00' 162,320 cf Custom Stage Data (Prismatic) Listed below (Recalc) Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 896.00 10 0 0 898.00 960 970 970 899.00 3,520 2,240 3,210 900.00 10,100 6,810 10,020 901.00 16,000 13,050 23,070 902.00 24,900 20,450 43,520 903.00 33,200 29,050 72,570 904.00 44,700 38,950 111,520 905.00 56,900 50,800 162,320 Device Routing Invert Outlet Devices #1 Primary 896.00'54.0" Round Culvert L= 200.0' RCP, end-section conforming to fill, Ke= 0.500 Inlet / Outlet Invert= 896.00' / 895.00' S= 0.0050 '/' Cc= 0.900 n= 0.013 Concrete pipe, straight & clean, Flow Area= 15.90 sf Primary OutFlow Max=142.44 cfs @ 12.25 hrs HW=902.42' (Free Discharge) 1=Culvert (Barrel Controls 142.44 cfs @ 8.96 fps) Type II 24-hr 100y 24hr Old Rainfall=6.00"Avienda - ZRC Design Check Printed 5/22/2018Prepared by LANDFORM Page 21HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Pond 0P: Powers Culvert --- (Hwy 212 Design) Inflow Primary Hydrograph Time (hours) 201918171615141312111098765Flow (cfs)210 200 190 180 170 160 150 140 130 120 110 100 90 80 70 60 50 40 30 20 10 0 Inflow Area=41.400 ac Peak Elev=902.42' Storage=54,799 cf 54.0" Round Culvert n=0.013 L=200.0' S=0.0050 '/' 193.94 cfs 142.47 cfs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Custom Rainfall=4.27", AMC=4Avienda - ZR Printed 5/22/2018Prepared by LANDFORM Page 22HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Time span=5.00-20.00 hrs, dt=0.05 hrs, 301 points Runoff by SCS TR-20 method, UH=SCS, Weighted-CN Reach routing by Stor-Ind+Trans method - Pond routing by Stor-Ind method Runoff Area=41.400 ac 65.00% Impervious Runoff Depth>3.91"Subcatchment 0S: Lake Susan Drainage Tc=20.0 min AMC Adjusted CN=98 Runoff=161.16 cfs 13.480 af Peak Elev=901.68' Storage=36,076 cf Inflow=161.16 cfs 13.480 afPond 0P: Powers Culvert --- (Hwy 212 54.0" Round Culvert n=0.013 L=200.0' S=0.0050 '/' Outflow=131.14 cfs 13.479 af Total Runoff Area = 41.400 ac Runoff Volume = 13.480 af Average Runoff Depth = 3.91" 35.00% Pervious = 14.490 ac 65.00% Impervious = 26.910 ac MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Custom Rainfall=4.27", AMC=4Avienda - ZR Printed 5/22/2018Prepared by LANDFORM Page 23HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 0S: Lake Susan Drainage (Hwy 212 Design) ZRC Design for Hwy 212 Runoff = 161.16 cfs @ 12.26 hrs, Volume= 13.480 af, Depth> 3.91" Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 5.00-20.00 hrs, dt= 0.05 hrs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Custom Rainfall=4.27", AMC=4 Area (ac) CN Adj Description 41.400 85 1/8 acre lots, 65% imp, HSG B 41.400 85 98 Weighted Average, AMC Adjusted 14.490 35.00% Pervious Area 26.910 65.00% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 20.0 Direct Entry, Subcatchment 0S: Lake Susan Drainage (Hwy 212 Design) Runoff Hydrograph Time (hours) 201918171615141312111098765Flow (cfs)180 170 160 150 140 130 120 110 100 90 80 70 60 50 40 30 20 10 0 MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Custom Rainfall=4.27" AMC=4 Runoff Area=41.400 ac Runoff Volume=13.480 af Runoff Depth>3.91" Tc=20.0 min AMC Adjusted CN=98 161.16 cfs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Custom Rainfall=4.27", AMC=4Avienda - ZR Printed 5/22/2018Prepared by LANDFORM Page 24HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Pond 0P: Powers Culvert --- (Hwy 212 Design) [82] Warning: Early inflow requires earlier time span Inflow Area = 41.400 ac, 65.00% Impervious, Inflow Depth > 3.91" for Custom event Inflow = 161.16 cfs @ 12.26 hrs, Volume= 13.480 af Outflow = 131.14 cfs @ 12.38 hrs, Volume= 13.479 af, Atten= 19%, Lag= 7.0 min Primary = 131.14 cfs @ 12.38 hrs, Volume= 13.479 af Routing by Stor-Ind method, Time Span= 5.00-20.00 hrs, dt= 0.05 hrs Peak Elev= 901.68' @ 12.38 hrs Surf.Area= 22,080 sf Storage= 36,076 cf Plug-Flow detention time= 1.8 min calculated for 13.479 af (100% of inflow) Center-of-Mass det. time= 1.7 min ( 748.3 - 746.6 ) Volume Invert Avail.Storage Storage Description #1 896.00' 162,320 cf Custom Stage Data (Prismatic) Listed below (Recalc) Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 896.00 10 0 0 898.00 960 970 970 899.00 3,520 2,240 3,210 900.00 10,100 6,810 10,020 901.00 16,000 13,050 23,070 902.00 24,900 20,450 43,520 903.00 33,200 29,050 72,570 904.00 44,700 38,950 111,520 905.00 56,900 50,800 162,320 Device Routing Invert Outlet Devices #1 Primary 896.00'54.0" Round Culvert L= 200.0' RCP, end-section conforming to fill, Ke= 0.500 Inlet / Outlet Invert= 896.00' / 895.00' S= 0.0050 '/' Cc= 0.900 n= 0.013 Concrete pipe, straight & clean, Flow Area= 15.90 sf Primary OutFlow Max=130.82 cfs @ 12.38 hrs HW=901.66' (Free Discharge) 1=Culvert (Barrel Controls 130.82 cfs @ 8.41 fps) MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Custom Rainfall=4.27", AMC=4Avienda - ZR Printed 5/22/2018Prepared by LANDFORM Page 25HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Pond 0P: Powers Culvert --- (Hwy 212 Design) Inflow Primary Hydrograph Time (hours) 201918171615141312111098765Flow (cfs)180 170 160 150 140 130 120 110 100 90 80 70 60 50 40 30 20 10 0 Inflow Area=41.400 ac Peak Elev=901.68' Storage=36,076 cf 54.0" Round Culvert n=0.013 L=200.0' S=0.0050 '/' 161.16 cfs 131.14 cfs SCD14001 Landform® and Site to Finish® are registered service marks of Landform Professional Services., LLC APPENDIX C Phases 1 & 2 Drainage Map Proposed HydroCAD Model Phase 1 - Wetland Floodplain Fill Map STS>>STS >>STS >>ST S>>STS>>STS>>STS >>STS>>STS>>STS>>STS>>STS>>STS>>34S West Woods 35S Rowhomes 10R Lake Susan Drainage East Pond East Temp Basin South-Center South Villas 92091091 5 911912 913 91 4 915 914 920 916 917 918 919 921 922 923 925 926927 9 2 0 9 2 1 92 2 92 0 91 9 915 916 917 911 912 913 911912913913915911912913914916917918919900 905910 915 920 898899901902903904 906907908909911912913914916917918919921922923 925 93093 5 9229239249 2 6 927928929931932933934 936 906 906 907 907 908 908 909 910915920 906 907 908 909 911 912 913 914 916917918919921 910910910910906907 907 9 0 8 9089099 0 9900905897898899901902903904906907Bluff Creek Blvd - East 40R South Drainage ONLY0+0 0 1+00 2+00 3+004+005+006+006+95.160+001+00 2+00 3+00 4+00 5+00 6+00 7+007+80.79GF=927.8 928.1 (FFE)SOG 927.6 GF=928.8929.1 (FFE)SOG 928.6 GF=930.8 931.1 (FFE)SOG 930.6 GF=927.3919.8 FBWO919.3 GF=926.8 919.3 FBWO918.8 GF=924.7 917.2 FBWO 916.7 GF=923. 1 915.6 FBWO 915.1 GF=9 2 2 . 0 914.5 FBW O 914.0 GF=915. 4 907.4FBWO 906.9 GF=916.5 908.5 FBWO 908.0 GF=917.5 909.5FBWO 909.0 GF=918.4 910.4FBWO 909.9 GF=919.8 911.8FBWO 911.3 GF=921.5 913.5FBWO 913.0 GF=922.5 914.5FBWO 914.0 GF=923.5 915.5 FBLO 918.5GF=930.8923.3FBWO922.8GF=933.1925.6FBWO925.1GF=934.5927.0FBWO926.5GF=935.7930.2FBWO927.7GF=935.3927.8FBWO927.3GF=936.3928.8FBWO928.3GF=936.4928.9FBWO928.4GF=936.4928.9FBWO928.4GF=935.5928.0FBWO927.5GF=934.7927.2FBWO926.7GF=931.8931.2(FFE)SOG931.6GF=933.8926.3FBWO925.8GF=932.5932.8(FFE)SOG932.3GF=933.7934.0(FFE)SOG933.5GF=934.5934.8(FFE)SOG934.3GF=936.3936.6(FFE)SOG936.1GF=936.4936.7(FFE)SOG936.2GF=936.1936.4(FFE)SOG935.9GF=935.5936.8(FFE)SOG935.3GF=934.8935.1(FFE)SOG934.6GF=933.9934.2(FFE)SOG933.7GF=932.2924.9FBLO924.4GF=929.8922.3FBWO921.8SAN>SAN>SAN>STS>>STS>>STS>>STS>>STS>>STS>>STS>>STS>>STS>>STS>>STS>>STS >>STS >>STS >> STS>>S T S>>STS>>STS >>STS>>STS >>STS >>STS >>STS >>STS>>STS >> STS >>STS >>STS>>STS>>STS >> STS >>STS >> STS>>STS >> STS >> STS >>STS>>STS >>STS>>STS >>STS>>STS >>STS>>STS>>SAN>STS>>STS>>STS>>STS>>STS>>STS >> STS >>STS>>STS>>STS >>B-3 B-2B-1 B-4 B-5 B-6 B-7 B-8 B-9 B-10 B-12B-11 B-13 B-14 B-15 B-16 B-17 B-18 B-19 B-20 B-21 B-22 B-23 B-24 B-25 B-26 B-27 B-28 B-29 B-30 B-31 B-32 930 935 927928929931932 933 934 936 920925 930935935 9359219229239249 2 6 9279289299319329339 3 4 936937925930 935 923923923924926927 928 929 931 932 933934 934934936937 9 2 0 9 1 8919 9 2 1 92 2925920915910905902 890 930 930 926927928 929 931 931 932 932 933 933 934 934 930925920920925925 9309359409409359309059008958 9 0 885 890 920 920921 9219 2 2 922 9229 2 3923 923 9 2 4 916896897905 910 904 906 907 908 909 911 912 913915 920913914916916916 917918919921922912913914915 910 905900 895 890 888905900895890885880876925922 915 913914 916917918919919 8908 9 59009 0 591091 5 8918928938 9 4 8 9 6 8 9 7 8 9 8 8 9 9 9 0 1 9 0 2 9 0 3 9 0 49069079089099 1 1 9 1 2 9 1 3 9 1 4 91 6 917 915 920 912913914916917918919921915920 925 911912913914916917918919921 922 923 924 920 918919921910905900895893 ONLYCOCO XXXXXXXXXXOEOEOEOEOEOEOEOEOEOECOCO SIG.BASE SIG.BASE SIG.BASE SIG.BASE SIG.BASE SIG.BASE CABXHH CABX CABX IIIII III IIIIUEOEOEOEOE OE OE OE OE >IHH SIG.BASE SIG.BASE LT SIG.BASE EM SIG.BASE SIG.BASE SIG.BASE HH SIG.BASE SIG.BASE SIG.BASECABX LT LTMB XX XXXXXXX X X X X X X X X X X X X X X FO FO FO FO FO FO FO FO >I>>BM-2 (TNH) 913.82 BM-1 (TNH) 921.32 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> UE UE UE UE UE UE UE UE UE UE UE UE UE UE UE UE UE UE UE UE UE U E UE B-3 B-2B-1 B-4 B-5 B-6 B-7 B-8 B-9 B-10 B-12B-11 B-13 B-14 B-15 B-16 B-17 B-18 B-19 B-20 B-21 B-22 B-23 B-24 B-25 B-26 B-27 B-28 B-29 B-30 B-31 B-32 XX FO FO FO FO FO FO FO >ONLY0+0 0 1+00 2+00 3+004+005+006+006+95.160+001+00 2+00 3+00 4+00 5+00 6+00 7+007+80.79GF=927.8 928.1 (FFE)SOG 927.6 GF=928.8929.1 (FFE)SOG 928.6 GF=930.8 931.1 (FFE)SOG 930.6 GF=927.3919.8 FBWO919.3 GF=926.8 919.3 FBWO918.8 GF=924.7 917.2 FBWO 916.7 GF=923. 1 915.6 FBWO 915.1 GF=9 2 2 . 0 914.5 FBW O 914.0 GF=915. 4 907.4FBWO 906.9 GF=916.5 908.5 FBWO 908.0 GF=917.5 909.5FBWO 909.0 GF=918.4 910.4FBWO 909.9 GF=919.8 911.8FBWO 911.3 GF=921.5 913.5FBWO 913.0 GF=922.5 914.5FBWO 914.0 GF=923.5 915.5 FBLO 918.5GF=930.8923.3FBWO922.8GF=933.1925.6FBWO925.1GF=934.5927.0FBWO926.5GF=935.7930.2FBWO927.7GF=935.3927.8FBWO927.3GF=936.3928.8FBWO928.3GF=936.4928.9FBWO928.4GF=936.4928.9FBWO928.4GF=935.5928.0FBWO927.5GF=934.7927.2FBWO926.7GF=931.8931.2(FFE)SOG931.6GF=933.8926.3FBWO925.8GF=932.5932.8(FFE)SOG932.3GF=933.7934.0(FFE)SOG933.5GF=934.5934.8(FFE)SOG934.3GF=936.3936.6(FFE)SOG936.1GF=936.4936.7(FFE)SOG936.2GF=936.1936.4(FFE)SOG935.9GF=935.5936.8(FFE)SOG935.3GF=934.8935.1(FFE)SOG934.6GF=933.9934.2(FFE)SOG933.7GF=932.2924.9FBLO924.4GF=929.8922.3FBWO921.8SAN>SAN>SAN>STS>>STS>>STS>>STS>>STS>>STS>>STS>>STS>>STS>>STS>>STS>>STS >>STS >>STS >> STS>>S T S>>STS>>STS >>STS>>STS >>STS >>STS >>STS >>STS>>STS >> STS >>STS >>STS>>STS>>STS >> STS >>STS >> STS>>STS >> STS >> STS >>STS>>STS >>STS>>STS >>STS>>STS >>STS>>STS>>SAN>STS>>STS>>STS>>STS>>STS>>STS >> STS >>STS>>STS>>STS >>B-3 B-2B-1 B-4 B-5 B-6 B-7 B-8 B-9 B-10 B-12B-11 B-13 B-14 B-15 B-16 B-17 B-18 B-19 B-20 B-21 B-22 B-23 B-24 B-25 B-26 B-27 B-28 B-29 B-30 B-31 B-32 STS>>STS >>STS >>ST S>>GRADE BREAKGRADEBREAKGRADE BREAK SWAL E SWALESTS >>STS>>Three 7.5" Steps @ 1'Three 6.25" Steps @ 1'Three 5" Steps @ 1'Two 6" Steps @ 1.5' Three 7" Steps @ 1' Four 6.5" Steps @ 0.75' Five 7" Steps @ 0.6' Five 6.5" Steps @ 0.6' Four 7.5" Steps @ 0.75' Four 7" Steps @ 0.75' Five 6.5" Steps @ 0.6' Five 6.25" Steps @ 0.6' Four 7" Steps @ 0.75' Five 6.75" Steps @ 0.6' Five 6.5" Steps @ 0.6' Four 7.25" Steps @ 0.75' Four 6.75" Steps @ 0.75' Four 7" Steps @ 0.75' Four 6.5" Steps @ 0.75' Four 5.75" Steps @ 0.75' Three 7" Steps @ 1' STS >>STS>>STS>>STS>>STS>>STS>>STS>>Three 6" Steps @ 1' Three 5.5" Steps @ 1' Three 5" Steps @ 1' Two 6" Steps @ 1' 11.04 11.62 Two 5" Steps @ 1.5' Two 4.25" Steps @ 1.5 One 7.25" step One 2.75" step Three 6.5" Steps @ 1' Two 7" Steps @ 1.5' One 6" step Five 7" Steps @ 0.6' Five 6.5" Steps @ 0.6' Three 5.5" Steps @ 1.5'Two 7" steps @ 1.5'"Three 7.5" Steps @ 1' Four 6.75" Steps @ 0.75' PROPOSED BUILDING FFE = 924.95 GFE = 924.53 PROPOSED BUILDINGFFE = 925.60GFE = 925.18 PROPOSED BUILDINGFFE = 926.20GFE = 925.78 PROPOSED BUILDINGFFE = 926.50GFE = 926.08 PROPOSED BUILDING FFE = 925.75 GFE = 925.33 PROPOSED BUILDINGFFE = 925.20GFE = 924.78 PROPOSED BUILDING FFE = 923.85 GFE = 923.43 PROPOSED BUILDINGFFE = 924.40GFE = 923.98 PROPOSED BUILDING FFE = 925.35 GFE = 924.93 PROPOSED BUILDINGFFE = 925.70GFE = 925.28 PROPOSED BUILDING FFE = 925.15 GFE = 924.73 PROPOSED BUILDING FFE = 926.40 GFE = 925.98 PROPOSED BUILDING FFE = 926.15 GFE = 925.73 1 2 3 4 1 2 3 4 1 1 1 1 1 1 1 1 1 1 1 1 2 2 2 2 2 2 2 2 2 2 2 2 3 3 3 3 3 3 3 3 3 3 3 3 4 4 4 4 4 4 4 4 4 1 2 3 4 5 6 7 8 9 10 11 12 13 14 PROPOSED BUILDING FFE = 925.00 GFE = 924.58 10.00 > > > > > > > >>>>>>>>>>>>>924924 923922921920919918917916915914913912924924923922921922923923924924921920 9239 2 3924 925925925925 925925924 9249249239239 2 2922 921923922921 920 919 919920 91891 9 91 8 91 7 91 6922921920919 922922924924925924925 925924 923924924923 9229219209199189179169159149139 2 3 923922923923924 923STS>>STS >>STS>>STS >>STS>>STS >>STS>>STS >> 924925 925 2.8%3.1%3.1%17.2%3.3%4.8% 3.7%2.1% 2.1% 5.7% 4.7% 3.7%3.6% 3.8 % 3.8% 5.8% 4.4% 2.5% 2.5% 2.8% 3.5% 5.6% 2.5% 2.6% 2.5% 2.7% 3.7% 5.7% 1. 2% 2.6% 2.5%1.1%2.2% 33.8%2.0%5.8%2.4%3.5%4.8%2.0%3.2%2.6% 5.8% 1 . 3% 2.0%2.0%4.5%1.4%2.0% 2.0%11.4%6.2%5.6% 4.5% 5.8%2.8%5.5%4.7%4.4%2.8%4.0%4.9%6.2%4.9% 3.8% 4.3% 5.0% 4.2% 4.3% 3.0% 2.6% 2.7% 5.9% 4.8%4.3% 4.5% 4.0% 4.8%5.3% 5.9% 4.1% 4.8% 5.5% 3.4% 4.2% 4.7% 5.4%4.8%2.0% 2.5%2.5%2.0%2.0%2.5% 2.0% 2.3%2.4%3.3% 3.1% 3.2%3.1%2.0%2.6% 2.0% 2.0%2.6% 2.4%2.7%0.4%2.0%4.4%1.4% 2.0%4.4% 2.0 %4.5% 2.0% 4.3%2.0% 2.0 %4.6% 2. 0 %2.5%1.6%2.5% 2.5%2.4%13.0%2.0% 3. 2 % 2.6%51.9%41.7%3.8%4.6%2.0%6.7%4.4% 3.6%46.8%2.1%4.9%7.2% 3.3% 2.0% 3.0% 5.5%0.4% 7.3% 25.0%24.8%7.1% 13.1S 13S 13P Rowhomes Basin RH Front Yards - N 12S Northeast 1P 11.4P 48S 52S46uS 47P Bluff Creek - West Basin 25P West North Basin 25S West North 28P Avienda Parkway Basin 28S Avienda Parkway 21P Northwest Basin 22oS From Lyman 22S Direct to Wetland 6 21R Lower NW Wetland 6 Northwest 21S 29oS North Offsite 11S East 1S Northeast 11oS Offsite East 16oS East Offsite 55S Direct to Bluff Creek - East Basin 48P Bluff Creek - East Basin 54S South-East 54P South-East Temp Basin 42.2S Southeast Fringe 42.1S South FringeWetland 4 Channel 44R 41.3P South-West Temp Basin 52P South-Center Temp Basin 41.3S South-West 43.1S East Woods 43.2S Northeast Woods 44P Wetland 4 44S North Woods 34P West - South (Existing) Offsite to West South 34oS 36oS Southwest Offsite 34dS Offsite West Direct 33oS Offsite West North 33S Direct to Wetland 3 31P West Central Basin 31S West Central 13.2S RH Front Yards - S47S Bluff Creek Blvd - West 40.4S South Villa's Drive 46P Triangle Basin 46S South West 50R Bluff Creek Drainage Wetland 3 33P Landform and Site to Finish are registered service marks of Landform Professional Services, LLC.R R in collaboration with: LEVEL 7 DEVELOPMENT RSP ARCHITECTS · WELSH AND COLLIERS AVIENDA ROWHOMES · Chanhassen, MN PHASES 1-3 DRAINAGE NORTH 0 150 300 LEGEND PRIMARY DRAINAGE BOUNDARY SECONDARY DRAINAGE BOUNDARY TERTIARY DRAINAGE BOUNDARY TIME OF CONCENTRATION PATH 1S Name SUBCATCHMENT LABEL 1P Name 1R Name BASIN / POND LABEL REACH LABEL Stormwater Management Plan · 05.05.2023 DRAINAGE DIRECTION AVIENDA PKWYSUNSET TRAIL BLUFF CREEK BLVD.C.S.A.H. NO. 17RIVER ROCK DRIVE N.MILLS DRIVELYMAN BOULEVARDPHASE 1 CONSTRUCTIONPHASE 2 CONSTRUCTIONPHASE 2 CONSTRUCTIONIRRIGATION RE-USE BASINVOLUME AVAILABLE = 20,384 C.F.IRRIGATIONCONTROLLERIRRIGATIONCONTROLLERIRRIGATION RE-USE BASINVOLUME AVAILABLE = 23,100 C.F.IRRIGATION BOUNDARYNORTHWEST IRRIGATION AREA = 364,438 S.F.SOUTH IRRIGATION AREA = 120,169 S.F.PHASE 1 CONSTRUCTIONPHASE 3 CONSTRUCTIONBLUFF CREEK OVERLAY DISTRICTSECONDARY BOUNDARYBLUFF CREEK OVERLAY DISTRICTPRIMARY BOUNDARYIrrigation Areas ExhibitAvienda • Chanhassen, MN • 05.05.2023LEGENDIrrigation AreaConstruction Phasing LimitsLandform® and Site to Finish® are registered service marks of Landform Professional Services, LLC. WETLAND #2 WETLAND #1 XXXXXXXXXXXXXXXXXXXXXXSIG.BASE SIG.BASE SIG.BASE SIG.BASE SIG.BASE SIG.BASE CABX CABX IIII IIIIIIIIIII III III II I IIIIIII HH SIG.BASE SIG.BASE LT SIG.BASE SIG.BASE SIG.BASE SIG.BASE HH SIG.BASE SIG.BASE SIG.BASE CABX LT LTMBFO FO FO FO FO FO FO FO FO FO FO FO FO FO FO FO FO FO FO G BM-1 (TNH) 921.32 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> >> >> C.S.A.H. NO. 18 LYMAN BOULEVARD POWERS BOULEVARDSUNSETTRAIL C.S.A.H.NO. 17C.S.A.H. NO. 1791091 5 920 925 930 935 940 945 950 955 9109159209259309 3 5 890 895900905 910 915915920920 905910915920 925 930 935 940 945950 92 5 930 935 940 945 950 905 910 Landform and Site to Finish are registered service marks of Landform Professional Services, LLC.R R in collaboration with: LEVEL 7 DEVELOPMENT RSP ARCHITECTS · WELSH AND COLLIERS AVIENDA · Chanhassen, MN · 04.22.2020 WETLAND FILL MAP NORTH 0 200 400 LEGEND :WETLAND FILL AREA 1S North East 11oS Offsite East 11S East 12S (new Subcat) 013S Undeveloped Site of Rowhomes 13S Rowhomes 61S Powers (from SRF) 62S NE Ramp (from SRF) 63S TH 212 (from SRF) 64S Englewood (from SRF) 65S LYMLP (from SRF) 66S N54 (from SRF) 67-1S Fresh MDW Subcatch 1 (from SRF) 67-2S Fresh MDW Subcatch 2 (from SRF) 67-3S Fresh MDW Subcatch 3 (from SRF) 68S M10 10R Lake Susan Drainage 61R NERDITCH 62R L42 1P East Central Temp Basin 11.4P East Pond 13P Live Storage 61P Englewood Pond 65P Fresh MDW 68P East MNDOT M10 Wetland Routing Diagram for Avienda Ph 3 -- 2023-05-04 Prepared by Landform Professional Services, Printed 5/4/2023 HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Subcat Reach Pond Link Lake Susan and MnDOT Wetland M10 Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 2HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Rainfall Events Listing (selected events) Event# Event Name Storm Type Curve Mode Duration (hours) B/B Depth (inches) 1 1-Year MSE 24-hr 3 Default 24.00 1 2.47 2 1.1 Inch Equiv. MSE 24-hr 3 Default 24.00 1 1.32 3 2y 24hr MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Default 24.00 1 2.87 4 10 day snowmelt MN-Snowmelt_10d_100yr Default 240.00 1 7.20 5 10y 24hr MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Default 24.00 1 4.27 6 100y 24hr MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Default 24.00 1 7.41 7 100y 24hr Old Type II 24-hr Default 24.00 1 6.00 MSE 24-hr 3 1-Year Rainfall=2.47"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 3HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Time span=0.00-360.00 hrs, dt=0.01 hrs, 36001 points Runoff by SCS TR-20 method, UH=SCS, Weighted-CN Reach routing by Dyn-Stor-Ind method - Pond routing by Dyn-Stor-Ind method Runoff Area=1,266,860 sf 2.93% Impervious Runoff Depth=0.92"Subcatchment 1S: North East Flow Length=1,058' Tc=23.9 min CN=81 Runoff=26.60 cfs 2.232 af Runoff Area=35,675 sf 0.00% Impervious Runoff Depth=0.87"Subcatchment 11oS: Offsite East Flow Length=94' Slope=0.0430 '/' Tc=10.6 min CN=80 Runoff=1.06 cfs 0.059 af Runoff Area=233,115 sf 5.23% Impervious Runoff Depth=0.92"Subcatchment 11S: East Flow Length=783' Tc=24.3 min CN=81 Runoff=4.83 cfs 0.411 af Subcatchment 12S: (new Subcat) Runoff=0.00 cfs 0.000 af Runoff Area=251,740 sf 0.00% Impervious Runoff Depth=0.87"Subcatchment 013S: Undeveloped Site of Tc=30.0 min CN=80 Runoff=4.33 cfs 0.418 af Runoff Area=251,740 sf 68.19% Impervious Runoff Depth=1.67"Subcatchment 13S: Rowhomes Tc=7.5 min CN=92 Runoff=16.38 cfs 0.802 af Runoff Area=9.400 ac 0.00% Impervious Runoff Depth=1.29"Subcatchment 61S: Powers (from SRF) Tc=9.0 min CN=87 Runoff=19.80 cfs 1.007 af Runoff Area=4.200 ac 0.00% Impervious Runoff Depth=0.92"Subcatchment 62S: NE Ramp (from SRF) Tc=8.0 min CN=81 Runoff=6.52 cfs 0.322 af Runoff Area=8.200 ac 0.00% Impervious Runoff Depth=1.29"Subcatchment 63S: TH 212 (from SRF) Tc=12.0 min CN=87 Runoff=15.22 cfs 0.879 af Runoff Area=7.800 ac 0.00% Impervious Runoff Depth=0.72"Subcatchment 64S: Englewood (from SRF) Tc=10.0 min CN=77 Runoff=8.39 cfs 0.469 af Runoff Area=6.400 ac 0.00% Impervious Runoff Depth=1.03"Subcatchment 65S: LYMLP (from SRF) Tc=15.0 min CN=83 Runoff=8.53 cfs 0.551 af Runoff Area=1.900 ac 0.00% Impervious Runoff Depth=1.84"Subcatchment 66S: N54 (from SRF) Tc=7.6 min CN=94 Runoff=5.76 cfs 0.291 af Runoff Area=0.440 ac 100.00% Impervious Runoff Depth=2.47"Subcatchment 67-1S: Fresh MDW Tc=7.0 min CN=100 Runoff=1.57 cfs 0.091 af Runoff Area=1.100 ac 0.00% Impervious Runoff Depth=0.48"Subcatchment 67-2S: Fresh MDW Subcatch Tc=7.0 min CN=71 Runoff=0.82 cfs 0.044 af Runoff Area=2.300 ac 0.00% Impervious Runoff Depth=0.00"Subcatchment 67-3S: Fresh MDW Subcatch Tc=83.0 min CN=10 Runoff=0.00 cfs 0.000 af Runoff Area=17.000 ac 0.00% Impervious Runoff Depth=0.59"Subcatchment 68S: M10 Tc=10.0 min CN=74 Runoff=14.34 cfs 0.838 af MSE 24-hr 3 1-Year Rainfall=2.47"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 4HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Inflow=11.33 cfs 3.479 afReach 10R: Lake Susan Drainage Outflow=11.33 cfs 3.479 af Avg. Flow Depth=0.81' Max Vel=2.36 fps Inflow=22.16 cfs 4.486 afReach 61R: NERDITCH n=0.035 L=545.0' S=0.0055 '/' Capacity=737.08 cfs Outflow=20.03 cfs 4.486 af Avg. Flow Depth=0.85' Max Vel=5.12 fps Inflow=6.52 cfs 0.322 afReach 62R: L42 24.0" Round Pipe n=0.012 L=200.0' S=0.0050 '/' Capacity=17.33 cfs Outflow=6.48 cfs 0.322 af Peak Elev=907.82' Storage=54,268 cf Inflow=33.56 cfs 3.013 afPond 1P: East Central Temp Basin Primary=9.30 cfs 3.009 af Secondary=0.00 cfs 0.000 af Outflow=9.30 cfs 3.009 af Peak Elev=904.26' Storage=3,307 cf Inflow=11.22 cfs 3.419 afPond 11.4P: East Pond Outflow=11.17 cfs 3.419 af Peak Elev=914.56' Storage=10,424 cf Inflow=16.38 cfs 0.802 afPond 13P: Live Storage Outflow=13.84 cfs 0.781 af Peak Elev=892.94' Storage=132,978 cf Inflow=49.28 cfs 6.156 afPond 61P: Englewood Pond Outflow=5.76 cfs 6.100 af Peak Elev=897.10' Storage=21,884 cf Inflow=14.73 cfs 0.977 afPond 65P: Fresh MDW Outflow=3.09 cfs 0.822 af Peak Elev=891.52' Storage=255,803 cf Inflow=15.34 cfs 7.760 afPond 68P: East MNDOT M10 Wetland Outflow=0.87 cfs 4.446 af Total Runoff Area = 105.552 ac Runoff Volume = 8.415 af Average Runoff Depth = 0.96" 94.78% Pervious = 100.040 ac 5.22% Impervious = 5.512 ac MSE 24-hr 3 1-Year Rainfall=2.47"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 5HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 1S: North East Runoff = 26.60 cfs @ 12.35 hrs, Volume= 2.232 af, Depth= 0.92" Routed to Pond 1P : East Central Temp Basin Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MSE 24-hr 3 1-Year Rainfall=2.47" Area (sf) CN Description * 1,229,785 80 >75% Grass cover, Good, HSG D * 37,075 100 Water 1,266,860 81 Weighted Average 1,229,785 97.07% Pervious Area 37,075 2.93% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 5.2 100 0.1100 0.32 Sheet Flow, Grass: Short n= 0.150 P2= 2.87" 6.8 460 0.0260 1.13 Shallow Concentrated Flow, Short Grass Pasture Kv= 7.0 fps 11.9 498 0.0100 0.70 Shallow Concentrated Flow, Short Grass Pasture Kv= 7.0 fps 23.9 1,058 Total Subcatchment 1S: North East Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)28 26 24 22 20 18 16 14 12 10 8 6 4 2 0 MSE 24-hr 3 1-Year Rainfall=2.47" Runoff Area=1,266,860 sf Runoff Volume=2.232 af Runoff Depth=0.92" Flow Length=1,058' Tc=23.9 min CN=81 26.60 cfs MSE 24-hr 3 1-Year Rainfall=2.47"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 6HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 11oS: Offsite East Runoff = 1.06 cfs @ 12.19 hrs, Volume= 0.059 af, Depth= 0.87" Routed to Reach 10R : Lake Susan Drainage Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MSE 24-hr 3 1-Year Rainfall=2.47" Area (sf) CN Description 35,675 80 >75% Grass cover, Good, HSG D 35,675 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 10.6 94 0.0430 0.15 Sheet Flow, Grass: Dense n= 0.240 P2= 2.87" Subcatchment 11oS: Offsite East Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)1 0 MSE 24-hr 3 1-Year Rainfall=2.47" Runoff Area=35,675 sf Runoff Volume=0.059 af Runoff Depth=0.87" Flow Length=94' Slope=0.0430 '/' Tc=10.6 min CN=80 1.06 cfs MSE 24-hr 3 1-Year Rainfall=2.47"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 7HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 11S: East Runoff = 4.83 cfs @ 12.37 hrs, Volume= 0.411 af, Depth= 0.92" Routed to Pond 11.4P : East Pond Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MSE 24-hr 3 1-Year Rainfall=2.47" Area (sf) CN Description * 220,915 80 >75% Grass cover, Good, HSG D 12,200 98 Water Surface, HSG D 233,115 81 Weighted Average 220,915 94.77% Pervious Area 12,200 5.23% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 9.9 178 0.0700 0.30 Sheet Flow, Grass: Short n= 0.150 P2= 2.87" 14.4 605 0.0100 0.70 Shallow Concentrated Flow, Short Grass Pasture Kv= 7.0 fps 24.3 783 Total Subcatchment 11S: East Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)5 4 3 2 1 0 MSE 24-hr 3 1-Year Rainfall=2.47" Runoff Area=233,115 sf Runoff Volume=0.411 af Runoff Depth=0.92" Flow Length=783' Tc=24.3 min CN=81 4.83 cfs MSE 24-hr 3 1-Year Rainfall=2.47"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 8HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 12S: (new Subcat) [40] Hint: Not Described (Area=0) Runoff = 0.00 cfs @ 0.00 hrs, Volume= 0.000 af, Depth= 0.00" Routed to Pond 13P : Live Storage Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MSE 24-hr 3 1-Year Rainfall=2.47" Subcatchment 12S: (new Subcat) Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)1 0 MSE 24-hr 3 1-Year Rainfall=2.47" 0.00 cfs MSE 24-hr 3 1-Year Rainfall=2.47"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 9HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 013S: Undeveloped Site of Rowhomes Runoff = 4.33 cfs @ 12.44 hrs, Volume= 0.418 af, Depth= 0.87" Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MSE 24-hr 3 1-Year Rainfall=2.47" Area (sf) CN Description 251,740 80 >75% Grass cover, Good, HSG D 251,740 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 30.0 Direct Entry, Subcatchment 013S: Undeveloped Site of Rowhomes Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)4 3 2 1 0 MSE 24-hr 3 1-Year Rainfall=2.47" Runoff Area=251,740 sf Runoff Volume=0.418 af Runoff Depth=0.87" Tc=30.0 min CN=80 4.33 cfs MSE 24-hr 3 1-Year Rainfall=2.47"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 10HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 13S: Rowhomes Runoff = 16.38 cfs @ 12.15 hrs, Volume= 0.802 af, Depth= 1.67" Routed to Pond 13P : Live Storage Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MSE 24-hr 3 1-Year Rainfall=2.47" Area (sf) CN Description 93,825 98 Roofs, HSG D 77,845 98 Paved parking, HSG D 80,070 80 >75% Grass cover, Good, HSG D 251,740 92 Weighted Average 80,070 31.81% Pervious Area 171,670 68.19% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 7.5 Direct Entry, Subcatchment 13S: Rowhomes Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 MSE 24-hr 3 1-Year Rainfall=2.47" Runoff Area=251,740 sf Runoff Volume=0.802 af Runoff Depth=1.67" Tc=7.5 min CN=92 16.38 cfs MSE 24-hr 3 1-Year Rainfall=2.47"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 11HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 61S: Powers (from SRF) Runoff = 19.80 cfs @ 12.17 hrs, Volume= 1.007 af, Depth= 1.29" Routed to Reach 61R : NERDITCH Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MSE 24-hr 3 1-Year Rainfall=2.47" Area (ac) CN Description * 9.400 87 Weighted 9.400 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 9.0 Direct Entry, Subcatchment 61S: Powers (from SRF) Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 MSE 24-hr 3 1-Year Rainfall=2.47" Runoff Area=9.400 ac Runoff Volume=1.007 af Runoff Depth=1.29" Tc=9.0 min CN=87 19.80 cfs MSE 24-hr 3 1-Year Rainfall=2.47"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 12HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 62S: NE Ramp (from SRF) Runoff = 6.52 cfs @ 12.16 hrs, Volume= 0.322 af, Depth= 0.92" Routed to Reach 62R : L42 Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MSE 24-hr 3 1-Year Rainfall=2.47" Area (ac) CN Description * 4.200 81 Weighted 4.200 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 8.0 Direct Entry, Subcatchment 62S: NE Ramp (from SRF) Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)7 6 5 4 3 2 1 0 MSE 24-hr 3 1-Year Rainfall=2.47" Runoff Area=4.200 ac Runoff Volume=0.322 af Runoff Depth=0.92" Tc=8.0 min CN=81 6.52 cfs MSE 24-hr 3 1-Year Rainfall=2.47"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 13HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 63S: TH 212 (from SRF) Runoff = 15.22 cfs @ 12.20 hrs, Volume= 0.879 af, Depth= 1.29" Routed to Pond 61P : Englewood Pond Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MSE 24-hr 3 1-Year Rainfall=2.47" Area (ac) CN Description * 8.200 87 Weighted 8.200 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 12.0 Direct Entry, Subcatchment 63S: TH 212 (from SRF) Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 MSE 24-hr 3 1-Year Rainfall=2.47" Runoff Area=8.200 ac Runoff Volume=0.879 af Runoff Depth=1.29" Tc=12.0 min CN=87 15.22 cfs MSE 24-hr 3 1-Year Rainfall=2.47"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 14HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 64S: Englewood (from SRF) Runoff = 8.39 cfs @ 12.19 hrs, Volume= 0.469 af, Depth= 0.72" Routed to Pond 61P : Englewood Pond Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MSE 24-hr 3 1-Year Rainfall=2.47" Area (ac) CN Description * 7.800 77 Weighted 7.800 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 10.0 Direct Entry, Subcatchment 64S: Englewood (from SRF) Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)9 8 7 6 5 4 3 2 1 0 MSE 24-hr 3 1-Year Rainfall=2.47" Runoff Area=7.800 ac Runoff Volume=0.469 af Runoff Depth=0.72" Tc=10.0 min CN=77 8.39 cfs MSE 24-hr 3 1-Year Rainfall=2.47"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 15HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 65S: LYMLP (from SRF) Runoff = 8.53 cfs @ 12.24 hrs, Volume= 0.551 af, Depth= 1.03" Routed to Pond 65P : Fresh MDW Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MSE 24-hr 3 1-Year Rainfall=2.47" Area (ac) CN Description * 6.400 83 Weighted 6.400 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 15.0 Direct Entry, Subcatchment 65S: LYMLP (from SRF) Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)9 8 7 6 5 4 3 2 1 0 MSE 24-hr 3 1-Year Rainfall=2.47" Runoff Area=6.400 ac Runoff Volume=0.551 af Runoff Depth=1.03" Tc=15.0 min CN=83 8.53 cfs MSE 24-hr 3 1-Year Rainfall=2.47"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 16HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 66S: N54 (from SRF) Runoff = 5.76 cfs @ 12.15 hrs, Volume= 0.291 af, Depth= 1.84" Routed to Pond 65P : Fresh MDW Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MSE 24-hr 3 1-Year Rainfall=2.47" Area (ac) CN Description * 1.900 94 Weighted 1.900 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 7.6 Direct Entry, Subcatchment 66S: N54 (from SRF) Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)6 5 4 3 2 1 0 MSE 24-hr 3 1-Year Rainfall=2.47" Runoff Area=1.900 ac Runoff Volume=0.291 af Runoff Depth=1.84" Tc=7.6 min CN=94 5.76 cfs MSE 24-hr 3 1-Year Rainfall=2.47"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 17HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 67-1S: Fresh MDW Subcatch 1 (from SRF) Runoff = 1.57 cfs @ 12.14 hrs, Volume= 0.091 af, Depth= 2.47" Routed to Pond 65P : Fresh MDW Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MSE 24-hr 3 1-Year Rainfall=2.47" Area (ac) CN Description * 0.440 100 Weighted 0.440 100.00% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 7.0 Direct Entry, Subcatchment 67-1S: Fresh MDW Subcatch 1 (from SRF) Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)1 0 MSE 24-hr 3 1-Year Rainfall=2.47" Runoff Area=0.440 ac Runoff Volume=0.091 af Runoff Depth=2.47" Tc=7.0 min CN=100 1.57 cfs MSE 24-hr 3 1-Year Rainfall=2.47"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 18HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 67-2S: Fresh MDW Subcatch 2 (from SRF) Runoff = 0.82 cfs @ 12.16 hrs, Volume= 0.044 af, Depth= 0.48" Routed to Pond 65P : Fresh MDW Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MSE 24-hr 3 1-Year Rainfall=2.47" Area (ac) CN Description * 1.100 71 Weighted 1.100 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 7.0 Direct Entry, Subcatchment 67-2S: Fresh MDW Subcatch 2 (from SRF) Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.9 0.85 0.8 0.75 0.7 0.65 0.6 0.55 0.5 0.45 0.4 0.35 0.3 0.25 0.2 0.15 0.1 0.05 0 MSE 24-hr 3 1-Year Rainfall=2.47" Runoff Area=1.100 ac Runoff Volume=0.044 af Runoff Depth=0.48" Tc=7.0 min CN=71 0.82 cfs MSE 24-hr 3 1-Year Rainfall=2.47"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 19HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 67-3S: Fresh MDW Subcatch 3 (from SRF) [45] Hint: Runoff=Zero Runoff = 0.00 cfs @ 0.00 hrs, Volume= 0.000 af, Depth= 0.00" Routed to Pond 65P : Fresh MDW Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MSE 24-hr 3 1-Year Rainfall=2.47" Area (ac) CN Description * 2.300 10 Weighted 2.300 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 83.0 Direct Entry, Subcatchment 67-3S: Fresh MDW Subcatch 3 (from SRF) Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)1 0 MSE 24-hr 3 1-Year Rainfall=2.47" Runoff Area=2.300 ac Runoff Volume=0.000 af Runoff Depth=0.00" Tc=83.0 min CN=10 0.00 cfs MSE 24-hr 3 1-Year Rainfall=2.47"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 20HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 68S: M10 Runoff = 14.34 cfs @ 12.19 hrs, Volume= 0.838 af, Depth= 0.59" Routed to Pond 68P : East MNDOT M10 Wetland Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MSE 24-hr 3 1-Year Rainfall=2.47" Area (ac) CN Description * 17.000 74 Weighted 17.000 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 10.0 Direct Entry, Subcatchment 68S: M10 Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 MSE 24-hr 3 1-Year Rainfall=2.47" Runoff Area=17.000 ac Runoff Volume=0.838 af Runoff Depth=0.59" Tc=10.0 min CN=74 14.34 cfs MSE 24-hr 3 1-Year Rainfall=2.47"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 21HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Reach 10R: Lake Susan Drainage [40] Hint: Not Described (Outflow=Inflow) Inflow Area = 41.033 ac, 12.36% Impervious, Inflow Depth = 1.02" for 1-Year event Inflow = 11.33 cfs @ 12.73 hrs, Volume= 3.479 af Outflow = 11.33 cfs @ 12.73 hrs, Volume= 3.479 af, Atten= 0%, Lag= 0.0 min Routed to Reach 61R : NERDITCH Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Reach 10R: Lake Susan Drainage Inflow Outflow Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)12 11 10 9 8 7 6 5 4 3 2 1 0 Inflow Area=41.033 ac 11.33 cfs 11.33 cfs MSE 24-hr 3 1-Year Rainfall=2.47"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 22HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Reach 61R: NERDITCH Inflow Area = 50.433 ac, 10.06% Impervious, Inflow Depth = 1.07" for 1-Year event Inflow = 22.16 cfs @ 12.17 hrs, Volume= 4.486 af Outflow = 20.03 cfs @ 12.21 hrs, Volume= 4.486 af, Atten= 10%, Lag= 2.5 min Routed to Pond 61P : Englewood Pond Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Max. Velocity= 2.36 fps, Min. Travel Time= 3.9 min Avg. Velocity = 0.45 fps, Avg. Travel Time= 20.0 min Peak Storage= 4,633 cf @ 12.21 hrs Average Depth at Peak Storage= 0.81' , Surface Width= 12.88' Bank-Full Depth= 5.00' Flow Area= 115.0 sf, Capacity= 737.08 cfs 8.00' x 5.00' deep channel, n= 0.035 Side Slope Z-value= 3.0 '/' Top Width= 38.00' Length= 545.0' Slope= 0.0055 '/' Inlet Invert= 895.00', Outlet Invert= 892.00' ‡ Reach 61R: NERDITCH Inflow Outflow Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 Inflow Area=50.433 ac Avg. Flow Depth=0.81' Max Vel=2.36 fps n=0.035 L=545.0' S=0.0055 '/' Capacity=737.08 cfs 22.16 cfs 20.03 cfs MSE 24-hr 3 1-Year Rainfall=2.47"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 23HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Reach 62R: L42 [52] Hint: Inlet/Outlet conditions not evaluated Inflow Area = 4.200 ac, 0.00% Impervious, Inflow Depth = 0.92" for 1-Year event Inflow = 6.52 cfs @ 12.16 hrs, Volume= 0.322 af Outflow = 6.48 cfs @ 12.17 hrs, Volume= 0.322 af, Atten= 1%, Lag= 0.5 min Routed to Pond 61P : Englewood Pond Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Max. Velocity= 5.12 fps, Min. Travel Time= 0.7 min Avg. Velocity = 1.64 fps, Avg. Travel Time= 2.0 min Peak Storage= 253 cf @ 12.17 hrs Average Depth at Peak Storage= 0.85' , Surface Width= 1.98' Bank-Full Depth= 2.00' Flow Area= 3.1 sf, Capacity= 17.33 cfs 24.0" Round Pipe n= 0.012 Length= 200.0' Slope= 0.0050 '/' Inlet Invert= 893.00', Outlet Invert= 892.00' MSE 24-hr 3 1-Year Rainfall=2.47"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 24HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Reach 62R: L42 Inflow Outflow Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)7 6 5 4 3 2 1 0 Inflow Area=4.200 ac Avg. Flow Depth=0.85' Max Vel=5.12 fps 24.0" Round Pipe n=0.012 L=200.0' S=0.0050 '/' Capacity=17.33 cfs 6.52 cfs 6.48 cfs MSE 24-hr 3 1-Year Rainfall=2.47"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 25HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Pond 1P: East Central Temp Basin Inflow Area = 34.862 ac, 13.75% Impervious, Inflow Depth = 1.04" for 1-Year event Inflow = 33.56 cfs @ 12.30 hrs, Volume= 3.013 af Outflow = 9.30 cfs @ 12.90 hrs, Volume= 3.009 af, Atten= 72%, Lag= 36.0 min Primary = 9.30 cfs @ 12.90 hrs, Volume= 3.009 af Routed to Pond 11.4P : East Pond Secondary = 0.00 cfs @ 0.00 hrs, Volume= 0.000 af Routed to Pond 11.4P : East Pond Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 907.82' @ 12.90 hrs Surf.Area= 41,279 sf Storage= 54,268 cf Plug-Flow detention time= 227.9 min calculated for 3.009 af (100% of inflow) Center-of-Mass det. time= 226.0 min ( 1,075.4 - 849.5 ) Volume Invert Avail.Storage Storage Description #1 906.43' 364,823 cf Basin 2 (Prismatic) Listed below (Recalc) Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 906.43 37,075 0 0 908.00 41,840 61,948 61,948 909.00 48,360 45,100 107,048 910.00 66,876 57,618 164,666 911.50 200,000 200,157 364,823 Device Routing Invert Outlet Devices #1 Secondary 910.20'25.0' long x 80.0' breadth EOF Head (feet) 0.20 0.40 0.60 0.80 1.00 1.20 1.40 1.60 Coef. (English) 2.68 2.70 2.70 2.64 2.63 2.64 2.64 2.63 #2 Primary 906.43'24.0" Round Culvert L= 199.0' RCP, sq.cut end projecting, Ke= 0.500 Inlet / Outlet Invert= 906.43' / 904.00' S= 0.0122 '/' Cc= 0.900 n= 0.011 Concrete pipe, straight & clean, Flow Area= 3.14 sf Primary OutFlow Max=9.30 cfs @ 12.90 hrs HW=907.82' TW=904.26' (Dynamic Tailwater) 2=Culvert (Inlet Controls 9.30 cfs @ 4.01 fps) Secondary OutFlow Max=0.00 cfs @ 0.00 hrs HW=906.43' TW=904.00' (Dynamic Tailwater) 1=EOF ( Controls 0.00 cfs) MSE 24-hr 3 1-Year Rainfall=2.47"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 26HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Pond 1P: East Central Temp Basin Inflow Outflow Primary Secondary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)36 34 32 30 28 26 24 22 20 18 16 14 12 10 8 6 4 2 0 Inflow Area=34.862 ac Peak Elev=907.82' Storage=54,268 cf 33.56 cfs 9.30 cfs 9.30 cfs 0.00 cfs MSE 24-hr 3 1-Year Rainfall=2.47"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 27HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Pond 11.4P: East Pond Inflow Area = 40.214 ac, 12.61% Impervious, Inflow Depth = 1.02" for 1-Year event Inflow = 11.22 cfs @ 12.67 hrs, Volume= 3.419 af Outflow = 11.17 cfs @ 12.73 hrs, Volume= 3.419 af, Atten= 0%, Lag= 3.6 min Primary = 11.17 cfs @ 12.73 hrs, Volume= 3.419 af Routed to Reach 10R : Lake Susan Drainage Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 904.26' @ 12.73 hrs Surf.Area= 12,836 sf Storage= 3,307 cf Plug-Flow detention time= 9.1 min calculated for 3.419 af (100% of inflow) Center-of-Mass det. time= 8.8 min ( 1,055.8 - 1,047.0 ) Volume Invert Avail.Storage Storage Description #1 904.00' 68,298 cf Custom Stage Data (Prismatic) Listed below (Recalc) Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 904.00 12,200 0 0 906.00 17,015 29,215 29,215 908.00 22,068 39,083 68,298 Device Routing Invert Outlet Devices #1 Primary 895.97'54.0" Round Culvert L= 232.0' RCP, square edge headwall, Ke= 0.500 Inlet / Outlet Invert= 895.97' / 894.53' S= 0.0062 '/' Cc= 0.900 n= 0.011 Concrete pipe, straight & clean, Flow Area= 15.90 sf #2 Device 1 904.00'84.0" Horiz. Orifice/Grate C= 0.600 Limited to weir flow at low heads #3 Primary 904.00'Custom Weir/Orifice, Cv= 2.62 (C= 3.28) Head (feet) 0.00 0.25 0.50 0.75 1.00 Width (feet) 0.10 7.33 11.00 14.67 22.00 Primary OutFlow Max=11.17 cfs @ 12.73 hrs HW=904.26' TW=0.00' (Dynamic Tailwater) 1=Culvert (Passes 9.76 cfs of 188.27 cfs potential flow) 2=Orifice/Grate (Weir Controls 9.76 cfs @ 1.68 fps) 3=Custom Weir/Orifice (Weir Controls 1.40 cfs @ 1.36 fps) MSE 24-hr 3 1-Year Rainfall=2.47"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 28HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Pond 11.4P: East Pond Inflow Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)12 11 10 9 8 7 6 5 4 3 2 1 0 Inflow Area=40.214 ac Peak Elev=904.26' Storage=3,307 cf 11.22 cfs 11.17 cfs MSE 24-hr 3 1-Year Rainfall=2.47"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 29HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Pond 13P: Live Storage Inflow Area = 5.779 ac, 68.19% Impervious, Inflow Depth = 1.67" for 1-Year event Inflow = 16.38 cfs @ 12.15 hrs, Volume= 0.802 af Outflow = 13.84 cfs @ 12.19 hrs, Volume= 0.781 af, Atten= 16%, Lag= 2.5 min Primary = 13.84 cfs @ 12.19 hrs, Volume= 0.781 af Routed to Pond 1P : East Central Temp Basin Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 914.56' @ 12.19 hrs Surf.Area= 4,554 sf Storage= 10,424 cf Plug-Flow detention time= 103.8 min calculated for 0.781 af (97% of inflow) Center-of-Mass det. time= 89.7 min ( 880.6 - 790.8 ) Volume Invert Avail.Storage Storage Description #1A 911.20' 6,060 cf 22.00'W x 207.00'L x 6.00'H Field A 27,324 cf Overall - 12,174 cf Embedded = 15,150 cf x 40.0% Voids #2A 911.70' 12,174 cf CMP Round 60 x 30 Inside #1 Effective Size= 60.0"W x 60.0"H => 19.63 sf x 20.00'L = 392.7 cf Overall Size= 60.0"W x 60.0"H x 20.00'L 30 Chambers in 3 Rows 20.00' Header x 19.63 sf x 1 = 392.7 cf Inside #3 916.70' 6,362 cf 30.00'D x 3.00'H Vertical Cone/Cylinder x 3 24,596 cf Total Available Storage Storage Group A created with Chamber Wizard Device Routing Invert Outlet Devices #1 Primary 911.70'21.0" Round Culvert L= 26.0' RCP, square edge headwall, Ke= 0.500 Inlet / Outlet Invert= 911.70' / 911.62' S= 0.0031 '/' Cc= 0.900 n= 0.013 Concrete pipe, straight & clean, Flow Area= 2.41 sf #2 Device 1 911.70'4.0" Vert. Orifice/Grate C= 0.600 Limited to weir flow at low heads #3 Device 1 913.70'5.0' long Sharp-Crested Rectangular Weir 2 End Contraction(s) 2.0' Crest Height Primary OutFlow Max=13.83 cfs @ 12.19 hrs HW=914.55' TW=906.78' (Dynamic Tailwater) 1=Culvert (Passes 13.83 cfs of 15.30 cfs potential flow) 2=Orifice/Grate (Orifice Controls 0.69 cfs @ 7.89 fps) 3=Sharp-Crested Rectangular Weir (Weir Controls 13.14 cfs @ 3.18 fps) MSE 24-hr 3 1-Year Rainfall=2.47"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 30HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Pond 13P: Live Storage - Chamber Wizard Field A Chamber Model = CMP Round 60 (Round Corrugated Metal Pipe) Effective Size= 60.0"W x 60.0"H => 19.63 sf x 20.00'L = 392.7 cf Overall Size= 60.0"W x 60.0"H x 20.00'L 60.0" Wide + 30.0" Spacing = 90.0" C-C Row Spacing 10 Chambers/Row x 20.00' Long +5.00' Header x 1 = 205.00' Row Length +12.0" End Stone x 2 = 207.00' Base Length 3 Rows x 60.0" Wide + 30.0" Spacing x 2 + 12.0" Side Stone x 2 = 22.00' Base Width 6.0" Stone Base + 60.0" Chamber Height + 6.0" Stone Cover = 6.00' Field Height 30 Chambers x 392.7 cf + 20.00' Header x 19.63 sf = 12,173.7 cf Chamber Storage 27,324.0 cf Field - 12,173.7 cf Chambers = 15,150.3 cf Stone x 40.0% Voids = 6,060.1 cf Stone Storage Chamber Storage + Stone Storage = 18,233.8 cf = 0.419 af Overall Storage Efficiency = 66.7% Overall System Size = 207.00' x 22.00' x 6.00' 30 Chambers 1,012.0 cy Field 561.1 cy Stone MSE 24-hr 3 1-Year Rainfall=2.47"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 31HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Pond 13P: Live Storage Inflow Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 Inflow Area=5.779 ac Peak Elev=914.56' Storage=10,424 cf 16.38 cfs 13.84 cfs MSE 24-hr 3 1-Year Rainfall=2.47"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 32HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Pond 61P: Englewood Pond [44] Hint: Outlet device #2 is below defined storage [62] Hint: Exceeded Reach 61R OUTLET depth by 0.63' @ 16.55 hrs [62] Hint: Exceeded Reach 62R OUTLET depth by 0.81' @ 15.34 hrs Inflow Area = 70.633 ac, 7.18% Impervious, Inflow Depth = 1.05" for 1-Year event Inflow = 49.28 cfs @ 12.20 hrs, Volume= 6.156 af Outflow = 5.76 cfs @ 15.17 hrs, Volume= 6.100 af, Atten= 88%, Lag= 178.3 min Primary = 5.76 cfs @ 15.17 hrs, Volume= 6.100 af Routed to Pond 68P : East MNDOT M10 Wetland Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 892.94' @ 15.17 hrs Surf.Area= 146,441 sf Storage= 132,978 cf Plug-Flow detention time= 787.2 min calculated for 6.099 af (99% of inflow) Center-of-Mass det. time= 748.2 min ( 1,702.7 - 954.5 ) Volume Invert Avail.Storage Storage Description #1 892.00' 1,031,055 cf Custom Stage Data (Prismatic) Listed below (Recalc) Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 892.00 136,580 0 0 895.00 168,060 456,960 456,960 898.00 214,670 574,095 1,031,055 Device Routing Invert Outlet Devices #1 Primary 892.00'42.0" Round Culvert L= 29.0' RCP, square edge headwall, Ke= 0.500 Inlet / Outlet Invert= 892.00' / 891.71' S= 0.0100 '/' Cc= 0.900 n= 0.013 Concrete pipe, straight & clean, Flow Area= 9.62 sf #2 Device 1 887.63'42.0" Round Culvert L= 13.0' RCP, end-section conforming to fill, Ke= 0.500 Inlet / Outlet Invert= 887.50' / 887.63' S= -0.0100 '/' Cc= 0.900 n= 0.013 Concrete pipe, straight & clean, Flow Area= 9.62 sf Primary OutFlow Max=5.76 cfs @ 15.17 hrs HW=892.94' TW=890.78' (Dynamic Tailwater) 1=Culvert (Barrel Controls 5.76 cfs @ 4.16 fps) 2=Culvert (Passes 5.76 cfs of 44.91 cfs potential flow) MSE 24-hr 3 1-Year Rainfall=2.47"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 33HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Pond 61P: Englewood Pond Inflow Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)55 50 45 40 35 30 25 20 15 10 5 0 Inflow Area=70.633 ac Peak Elev=892.94' Storage=132,978 cf 49.28 cfs 5.76 cfs MSE 24-hr 3 1-Year Rainfall=2.47"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 34HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Pond 65P: Fresh MDW Inflow Area = 12.140 ac, 3.62% Impervious, Inflow Depth = 0.97" for 1-Year event Inflow = 14.73 cfs @ 12.17 hrs, Volume= 0.977 af Outflow = 3.09 cfs @ 12.66 hrs, Volume= 0.822 af, Atten= 79%, Lag= 29.2 min Primary = 3.09 cfs @ 12.66 hrs, Volume= 0.822 af Routed to Pond 68P : East MNDOT M10 Wetland Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 897.10' @ 12.66 hrs Surf.Area= 21,208 sf Storage= 21,884 cf Plug-Flow detention time= 320.9 min calculated for 0.822 af (84% of inflow) Center-of-Mass det. time= 262.6 min ( 1,067.1 - 804.5 ) Volume Invert Avail.Storage Storage Description #1 896.00' 123,320 cf Custom Stage Data (Prismatic) Listed below (Recalc) Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 896.00 18,540 0 0 900.00 28,230 93,540 93,540 901.00 31,330 29,780 123,320 Device Routing Invert Outlet Devices #1 Primary 892.35'12.0" Round Culvert L= 35.0' RCP, square edge headwall, Ke= 0.500 Inlet / Outlet Invert= 892.00' / 892.35' S= -0.0100 '/' Cc= 0.900 n= 0.012, Flow Area= 0.79 sf #2 Device 1 896.35'33.0" Round Culvert L= 69.0' RCP, end-section conforming to fill, Ke= 0.500 Inlet / Outlet Invert= 896.35' / 896.01' S= 0.0049 '/' Cc= 0.900 n= 0.012 Concrete pipe, finished, Flow Area= 5.94 sf Primary OutFlow Max=3.09 cfs @ 12.66 hrs HW=897.10' TW=890.28' (Dynamic Tailwater) 1=Culvert (Passes 3.09 cfs of 7.80 cfs potential flow) 2=Culvert (Barrel Controls 3.09 cfs @ 3.53 fps) MSE 24-hr 3 1-Year Rainfall=2.47"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 35HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Pond 65P: Fresh MDW Inflow Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 Inflow Area=12.140 ac Peak Elev=897.10' Storage=21,884 cf 14.73 cfs 3.09 cfs MSE 24-hr 3 1-Year Rainfall=2.47"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 36HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Pond 68P: East MNDOT M10 Wetland Inflow Area = 99.773 ac, 5.52% Impervious, Inflow Depth > 0.93" for 1-Year event Inflow = 15.34 cfs @ 12.19 hrs, Volume= 7.760 af Outflow = 0.87 cfs @ 32.28 hrs, Volume= 4.446 af, Atten= 94%, Lag= 1,205.3 min Primary = 0.87 cfs @ 32.28 hrs, Volume= 4.446 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 891.52' @ 32.28 hrs Surf.Area= 272,132 sf Storage= 255,803 cf Plug-Flow detention time= 3,814.9 min calculated for 4.446 af (57% of inflow) Center-of-Mass det. time= 3,202.4 min ( 4,745.3 - 1,542.8 ) Volume Invert Avail.Storage Storage Description #1 890.00' 1,574,445 cf Custom Stage Data (Prismatic) Listed below (Recalc) Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 890.00 68,660 0 0 891.00 198,790 133,725 133,725 892.00 340,250 269,520 403,245 895.00 440,550 1,171,200 1,574,445 Device Routing Invert Outlet Devices #1 Primary 890.30'18.0" Round Culvert L= 155.0' RCP, square edge headwall, Ke= 0.500 Inlet / Outlet Invert= 890.30' / 889.53' S= 0.0050 '/' Cc= 0.900 n= 0.013 Concrete pipe, straight & clean, Flow Area= 1.77 sf #2 Device 1 891.00'10.0" Vert. Orifice/Grate C= 0.600 Limited to weir flow at low heads #3 Device 2 890.50'18.0" Round Culvert L= 40.0' RCP, end-section conforming to fill, Ke= 0.500 Inlet / Outlet Invert= 890.30' / 890.50' S= -0.0050 '/' Cc= 0.900 n= 0.013 Concrete pipe, straight & clean, Flow Area= 1.77 sf Primary OutFlow Max=0.87 cfs @ 32.28 hrs HW=891.52' (Free Discharge) 1=Culvert (Passes 0.87 cfs of 4.72 cfs potential flow) 2=Orifice/Grate (Orifice Controls 0.87 cfs @ 2.45 fps) 3=Culvert (Passes 0.87 cfs of 3.42 cfs potential flow) MSE 24-hr 3 1-Year Rainfall=2.47"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 37HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Pond 68P: East MNDOT M10 Wetland Inflow Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 Inflow Area=99.773 ac Peak Elev=891.52' Storage=255,803 cf 15.34 cfs 0.87 cfs MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 38HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Time span=0.00-360.00 hrs, dt=0.01 hrs, 36001 points Runoff by SCS TR-20 method, UH=SCS, Weighted-CN Reach routing by Dyn-Stor-Ind method - Pond routing by Dyn-Stor-Ind method Runoff Area=1,266,860 sf 2.93% Impervious Runoff Depth=0.23"Subcatchment 1S: North East Flow Length=1,058' Tc=23.9 min CN=81 Runoff=5.23 cfs 0.549 af Runoff Area=35,675 sf 0.00% Impervious Runoff Depth=0.20"Subcatchment 11oS: Offsite East Flow Length=94' Slope=0.0430 '/' Tc=10.6 min CN=80 Runoff=0.19 cfs 0.014 af Runoff Area=233,115 sf 5.23% Impervious Runoff Depth=0.23"Subcatchment 11S: East Flow Length=783' Tc=24.3 min CN=81 Runoff=0.95 cfs 0.101 af Subcatchment 12S: (new Subcat) Runoff=0.00 cfs 0.000 af Runoff Area=251,740 sf 0.00% Impervious Runoff Depth=0.20"Subcatchment 013S: Undeveloped Site of Tc=30.0 min CN=80 Runoff=0.78 cfs 0.098 af Runoff Area=251,740 sf 68.19% Impervious Runoff Depth=0.65"Subcatchment 13S: Rowhomes Tc=7.5 min CN=92 Runoff=6.59 cfs 0.314 af Runoff Area=9.400 ac 0.00% Impervious Runoff Depth=0.41"Subcatchment 61S: Powers (from SRF) Tc=9.0 min CN=87 Runoff=6.20 cfs 0.325 af Runoff Area=4.200 ac 0.00% Impervious Runoff Depth=0.23"Subcatchment 62S: NE Ramp (from SRF) Tc=8.0 min CN=81 Runoff=1.34 cfs 0.079 af Runoff Area=8.200 ac 0.00% Impervious Runoff Depth=0.41"Subcatchment 63S: TH 212 (from SRF) Tc=12.0 min CN=87 Runoff=4.71 cfs 0.283 af Runoff Area=7.800 ac 0.00% Impervious Runoff Depth=0.14"Subcatchment 64S: Englewood (from SRF) Tc=10.0 min CN=77 Runoff=0.99 cfs 0.091 af Runoff Area=6.400 ac 0.00% Impervious Runoff Depth=0.28"Subcatchment 65S: LYMLP (from SRF) Tc=15.0 min CN=83 Runoff=2.01 cfs 0.149 af Runoff Area=1.900 ac 0.00% Impervious Runoff Depth=0.78"Subcatchment 66S: N54 (from SRF) Tc=7.6 min CN=94 Runoff=2.53 cfs 0.123 af Runoff Area=0.440 ac 100.00% Impervious Runoff Depth=1.32"Subcatchment 67-1S: Fresh MDW Tc=7.0 min CN=100 Runoff=0.84 cfs 0.048 af Runoff Area=1.100 ac 0.00% Impervious Runoff Depth=0.06"Subcatchment 67-2S: Fresh MDW Subcatch Tc=7.0 min CN=71 Runoff=0.02 cfs 0.005 af Runoff Area=2.300 ac 0.00% Impervious Runoff Depth=0.00"Subcatchment 67-3S: Fresh MDW Subcatch Tc=83.0 min CN=10 Runoff=0.00 cfs 0.000 af Runoff Area=17.000 ac 0.00% Impervious Runoff Depth=0.09"Subcatchment 68S: M10 Tc=10.0 min CN=74 Runoff=0.89 cfs 0.131 af MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 39HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Inflow=1.11 cfs 0.952 afReach 10R: Lake Susan Drainage Outflow=1.11 cfs 0.952 af Avg. Flow Depth=0.37' Max Vel=1.51 fps Inflow=6.39 cfs 1.277 afReach 61R: NERDITCH n=0.035 L=545.0' S=0.0055 '/' Capacity=737.08 cfs Outflow=5.15 cfs 1.277 af Avg. Flow Depth=0.37' Max Vel=3.25 fps Inflow=1.34 cfs 0.079 afReach 62R: L42 24.0" Round Pipe n=0.012 L=200.0' S=0.0050 '/' Capacity=17.33 cfs Outflow=1.31 cfs 0.079 af Peak Elev=906.84' Storage=15,396 cf Inflow=5.77 cfs 0.842 afPond 1P: East Central Temp Basin Primary=1.00 cfs 0.837 af Secondary=0.00 cfs 0.000 af Outflow=1.00 cfs 0.837 af Peak Elev=904.06' Storage=738 cf Inflow=1.10 cfs 0.938 afPond 11.4P: East Pond Outflow=1.10 cfs 0.938 af Peak Elev=913.72' Storage=7,348 cf Inflow=6.59 cfs 0.314 afPond 13P: Live Storage Outflow=0.61 cfs 0.293 af Peak Elev=892.31' Storage=43,514 cf Inflow=11.98 cfs 1.731 afPond 61P: Englewood Pond Outflow=0.76 cfs 1.675 af Peak Elev=896.53' Storage=10,226 cf Inflow=4.59 cfs 0.326 afPond 65P: Fresh MDW Outflow=0.19 cfs 0.172 af Peak Elev=890.74' Storage=86,122 cf Inflow=0.94 cfs 1.977 afPond 68P: East MNDOT M10 Wetland Outflow=0.00 cfs 0.000 af Total Runoff Area = 105.552 ac Runoff Volume = 2.310 af Average Runoff Depth = 0.26" 94.78% Pervious = 100.040 ac 5.22% Impervious = 5.512 ac MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 40HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 1S: North East Runoff = 5.23 cfs @ 12.41 hrs, Volume= 0.549 af, Depth= 0.23" Routed to Pond 1P : East Central Temp Basin Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32" Area (sf) CN Description * 1,229,785 80 >75% Grass cover, Good, HSG D * 37,075 100 Water 1,266,860 81 Weighted Average 1,229,785 97.07% Pervious Area 37,075 2.93% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 5.2 100 0.1100 0.32 Sheet Flow, Grass: Short n= 0.150 P2= 2.87" 6.8 460 0.0260 1.13 Shallow Concentrated Flow, Short Grass Pasture Kv= 7.0 fps 11.9 498 0.0100 0.70 Shallow Concentrated Flow, Short Grass Pasture Kv= 7.0 fps 23.9 1,058 Total Subcatchment 1S: North East Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)5 4 3 2 1 0 MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32" Runoff Area=1,266,860 sf Runoff Volume=0.549 af Runoff Depth=0.23" Flow Length=1,058' Tc=23.9 min CN=81 5.23 cfs MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 41HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 11oS: Offsite East Runoff = 0.19 cfs @ 12.21 hrs, Volume= 0.014 af, Depth= 0.20" Routed to Reach 10R : Lake Susan Drainage Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32" Area (sf) CN Description 35,675 80 >75% Grass cover, Good, HSG D 35,675 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 10.6 94 0.0430 0.15 Sheet Flow, Grass: Dense n= 0.240 P2= 2.87" Subcatchment 11oS: Offsite East Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.21 0.2 0.19 0.18 0.17 0.16 0.15 0.14 0.13 0.12 0.11 0.1 0.09 0.08 0.07 0.06 0.05 0.04 0.03 0.02 0.01 0 MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32" Runoff Area=35,675 sf Runoff Volume=0.014 af Runoff Depth=0.20" Flow Length=94' Slope=0.0430 '/' Tc=10.6 min CN=80 0.19 cfs MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 42HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 11S: East Runoff = 0.95 cfs @ 12.42 hrs, Volume= 0.101 af, Depth= 0.23" Routed to Pond 11.4P : East Pond Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32" Area (sf) CN Description * 220,915 80 >75% Grass cover, Good, HSG D 12,200 98 Water Surface, HSG D 233,115 81 Weighted Average 220,915 94.77% Pervious Area 12,200 5.23% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 9.9 178 0.0700 0.30 Sheet Flow, Grass: Short n= 0.150 P2= 2.87" 14.4 605 0.0100 0.70 Shallow Concentrated Flow, Short Grass Pasture Kv= 7.0 fps 24.3 783 Total Subcatchment 11S: East Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)1 0 MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32" Runoff Area=233,115 sf Runoff Volume=0.101 af Runoff Depth=0.23" Flow Length=783' Tc=24.3 min CN=81 0.95 cfs MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 43HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 12S: (new Subcat) [40] Hint: Not Described (Area=0) Runoff = 0.00 cfs @ 0.00 hrs, Volume= 0.000 af, Depth= 0.00" Routed to Pond 13P : Live Storage Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32" Subcatchment 12S: (new Subcat) Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)1 0 MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32" 0.00 cfs MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 44HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 013S: Undeveloped Site of Rowhomes Runoff = 0.78 cfs @ 12.53 hrs, Volume= 0.098 af, Depth= 0.20" Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32" Area (sf) CN Description 251,740 80 >75% Grass cover, Good, HSG D 251,740 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 30.0 Direct Entry, Subcatchment 013S: Undeveloped Site of Rowhomes Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.85 0.8 0.75 0.7 0.65 0.6 0.55 0.5 0.45 0.4 0.35 0.3 0.25 0.2 0.15 0.1 0.05 0 MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32" Runoff Area=251,740 sf Runoff Volume=0.098 af Runoff Depth=0.20" Tc=30.0 min CN=80 0.78 cfs MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 45HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 13S: Rowhomes Runoff = 6.59 cfs @ 12.15 hrs, Volume= 0.314 af, Depth= 0.65" Routed to Pond 13P : Live Storage Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32" Area (sf) CN Description 93,825 98 Roofs, HSG D 77,845 98 Paved parking, HSG D 80,070 80 >75% Grass cover, Good, HSG D 251,740 92 Weighted Average 80,070 31.81% Pervious Area 171,670 68.19% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 7.5 Direct Entry, Subcatchment 13S: Rowhomes Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)7 6 5 4 3 2 1 0 MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32" Runoff Area=251,740 sf Runoff Volume=0.314 af Runoff Depth=0.65" Tc=7.5 min CN=92 6.59 cfs MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 46HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 61S: Powers (from SRF) Runoff = 6.20 cfs @ 12.17 hrs, Volume= 0.325 af, Depth= 0.41" Routed to Reach 61R : NERDITCH Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32" Area (ac) CN Description * 9.400 87 Weighted 9.400 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 9.0 Direct Entry, Subcatchment 61S: Powers (from SRF) Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)6 5 4 3 2 1 0 MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32" Runoff Area=9.400 ac Runoff Volume=0.325 af Runoff Depth=0.41" Tc=9.0 min CN=87 6.20 cfs MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 47HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 62S: NE Ramp (from SRF) Runoff = 1.34 cfs @ 12.17 hrs, Volume= 0.079 af, Depth= 0.23" Routed to Reach 62R : L42 Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32" Area (ac) CN Description * 4.200 81 Weighted 4.200 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 8.0 Direct Entry, Subcatchment 62S: NE Ramp (from SRF) Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)1 0 MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32" Runoff Area=4.200 ac Runoff Volume=0.079 af Runoff Depth=0.23" Tc=8.0 min CN=81 1.34 cfs MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 48HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 63S: TH 212 (from SRF) Runoff = 4.71 cfs @ 12.21 hrs, Volume= 0.283 af, Depth= 0.41" Routed to Pond 61P : Englewood Pond Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32" Area (ac) CN Description * 8.200 87 Weighted 8.200 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 12.0 Direct Entry, Subcatchment 63S: TH 212 (from SRF) Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)5 4 3 2 1 0 MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32" Runoff Area=8.200 ac Runoff Volume=0.283 af Runoff Depth=0.41" Tc=12.0 min CN=87 4.71 cfs MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 49HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 64S: Englewood (from SRF) Runoff = 0.99 cfs @ 12.22 hrs, Volume= 0.091 af, Depth= 0.14" Routed to Pond 61P : Englewood Pond Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32" Area (ac) CN Description * 7.800 77 Weighted 7.800 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 10.0 Direct Entry, Subcatchment 64S: Englewood (from SRF) Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)1 0 MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32" Runoff Area=7.800 ac Runoff Volume=0.091 af Runoff Depth=0.14" Tc=10.0 min CN=77 0.99 cfs MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 50HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 65S: LYMLP (from SRF) Runoff = 2.01 cfs @ 12.26 hrs, Volume= 0.149 af, Depth= 0.28" Routed to Pond 65P : Fresh MDW Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32" Area (ac) CN Description * 6.400 83 Weighted 6.400 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 15.0 Direct Entry, Subcatchment 65S: LYMLP (from SRF) Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)2 1 0 MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32" Runoff Area=6.400 ac Runoff Volume=0.149 af Runoff Depth=0.28" Tc=15.0 min CN=83 2.01 cfs MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 51HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 66S: N54 (from SRF) Runoff = 2.53 cfs @ 12.15 hrs, Volume= 0.123 af, Depth= 0.78" Routed to Pond 65P : Fresh MDW Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32" Area (ac) CN Description * 1.900 94 Weighted 1.900 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 7.6 Direct Entry, Subcatchment 66S: N54 (from SRF) Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)2 1 0 MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32" Runoff Area=1.900 ac Runoff Volume=0.123 af Runoff Depth=0.78" Tc=7.6 min CN=94 2.53 cfs MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 52HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 67-1S: Fresh MDW Subcatch 1 (from SRF) Runoff = 0.84 cfs @ 12.14 hrs, Volume= 0.048 af, Depth= 1.32" Routed to Pond 65P : Fresh MDW Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32" Area (ac) CN Description * 0.440 100 Weighted 0.440 100.00% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 7.0 Direct Entry, Subcatchment 67-1S: Fresh MDW Subcatch 1 (from SRF) Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.9 0.85 0.8 0.75 0.7 0.65 0.6 0.55 0.5 0.45 0.4 0.35 0.3 0.25 0.2 0.15 0.1 0.05 0 MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32" Runoff Area=0.440 ac Runoff Volume=0.048 af Runoff Depth=1.32" Tc=7.0 min CN=100 0.84 cfs MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 53HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 67-2S: Fresh MDW Subcatch 2 (from SRF) Runoff = 0.02 cfs @ 12.44 hrs, Volume= 0.005 af, Depth= 0.06" Routed to Pond 65P : Fresh MDW Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32" Area (ac) CN Description * 1.100 71 Weighted 1.100 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 7.0 Direct Entry, Subcatchment 67-2S: Fresh MDW Subcatch 2 (from SRF) Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.025 0.024 0.023 0.022 0.021 0.02 0.019 0.018 0.017 0.016 0.015 0.014 0.013 0.012 0.011 0.01 0.009 0.008 0.007 0.006 0.005 0.004 0.003 0.002 0.001 0 MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32" Runoff Area=1.100 ac Runoff Volume=0.005 af Runoff Depth=0.06" Tc=7.0 min CN=71 0.02 cfs MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 54HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 67-3S: Fresh MDW Subcatch 3 (from SRF) [45] Hint: Runoff=Zero Runoff = 0.00 cfs @ 0.00 hrs, Volume= 0.000 af, Depth= 0.00" Routed to Pond 65P : Fresh MDW Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32" Area (ac) CN Description * 2.300 10 Weighted 2.300 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 83.0 Direct Entry, Subcatchment 67-3S: Fresh MDW Subcatch 3 (from SRF) Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)1 0 MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32" Runoff Area=2.300 ac Runoff Volume=0.000 af Runoff Depth=0.00" Tc=83.0 min CN=10 0.00 cfs MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 55HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 68S: M10 Runoff = 0.89 cfs @ 12.28 hrs, Volume= 0.131 af, Depth= 0.09" Routed to Pond 68P : East MNDOT M10 Wetland Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32" Area (ac) CN Description * 17.000 74 Weighted 17.000 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 10.0 Direct Entry, Subcatchment 68S: M10 Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.95 0.9 0.85 0.8 0.75 0.7 0.65 0.6 0.55 0.5 0.45 0.4 0.35 0.3 0.25 0.2 0.15 0.1 0.05 0 MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32" Runoff Area=17.000 ac Runoff Volume=0.131 af Runoff Depth=0.09" Tc=10.0 min CN=74 0.89 cfs MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 56HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Reach 10R: Lake Susan Drainage [40] Hint: Not Described (Outflow=Inflow) Inflow Area = 41.033 ac, 12.36% Impervious, Inflow Depth > 0.28" for 1.1 Inch Equiv. event Inflow = 1.11 cfs @ 15.02 hrs, Volume= 0.952 af Outflow = 1.11 cfs @ 15.02 hrs, Volume= 0.952 af, Atten= 0%, Lag= 0.0 min Routed to Reach 61R : NERDITCH Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Reach 10R: Lake Susan Drainage Inflow Outflow Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)1 0 Inflow Area=41.033 ac 1.11 cfs 1.11 cfs MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 57HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Reach 61R: NERDITCH Inflow Area = 50.433 ac, 10.06% Impervious, Inflow Depth = 0.30" for 1.1 Inch Equiv. event Inflow = 6.39 cfs @ 12.17 hrs, Volume= 1.277 af Outflow = 5.15 cfs @ 12.23 hrs, Volume= 1.277 af, Atten= 19%, Lag= 3.6 min Routed to Pond 61P : Englewood Pond Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Max. Velocity= 1.51 fps, Min. Travel Time= 6.0 min Avg. Velocity = 0.44 fps, Avg. Travel Time= 20.8 min Peak Storage= 1,863 cf @ 12.23 hrs Average Depth at Peak Storage= 0.37' , Surface Width= 10.25' Bank-Full Depth= 5.00' Flow Area= 115.0 sf, Capacity= 737.08 cfs 8.00' x 5.00' deep channel, n= 0.035 Side Slope Z-value= 3.0 '/' Top Width= 38.00' Length= 545.0' Slope= 0.0055 '/' Inlet Invert= 895.00', Outlet Invert= 892.00' ‡ Reach 61R: NERDITCH Inflow Outflow Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)7 6 5 4 3 2 1 0 Inflow Area=50.433 ac Avg. Flow Depth=0.37' Max Vel=1.51 fps n=0.035 L=545.0' S=0.0055 '/' Capacity=737.08 cfs 6.39 cfs 5.15 cfs MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 58HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Reach 62R: L42 [52] Hint: Inlet/Outlet conditions not evaluated Inflow Area = 4.200 ac, 0.00% Impervious, Inflow Depth = 0.23" for 1.1 Inch Equiv. event Inflow = 1.34 cfs @ 12.17 hrs, Volume= 0.079 af Outflow = 1.31 cfs @ 12.18 hrs, Volume= 0.079 af, Atten= 2%, Lag= 0.8 min Routed to Pond 61P : Englewood Pond Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Max. Velocity= 3.25 fps, Min. Travel Time= 1.0 min Avg. Velocity = 1.17 fps, Avg. Travel Time= 2.9 min Peak Storage= 81 cf @ 12.18 hrs Average Depth at Peak Storage= 0.37' , Surface Width= 1.56' Bank-Full Depth= 2.00' Flow Area= 3.1 sf, Capacity= 17.33 cfs 24.0" Round Pipe n= 0.012 Length= 200.0' Slope= 0.0050 '/' Inlet Invert= 893.00', Outlet Invert= 892.00' MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 59HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Reach 62R: L42 Inflow Outflow Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)1 0 Inflow Area=4.200 ac Avg. Flow Depth=0.37' Max Vel=3.25 fps 24.0" Round Pipe n=0.012 L=200.0' S=0.0050 '/' Capacity=17.33 cfs 1.34 cfs 1.31 cfs MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 60HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Pond 1P: East Central Temp Basin Inflow Area = 34.862 ac, 13.75% Impervious, Inflow Depth = 0.29" for 1.1 Inch Equiv. event Inflow = 5.77 cfs @ 12.41 hrs, Volume= 0.842 af Outflow = 1.00 cfs @ 15.11 hrs, Volume= 0.837 af, Atten= 83%, Lag= 162.2 min Primary = 1.00 cfs @ 15.11 hrs, Volume= 0.837 af Routed to Pond 11.4P : East Pond Secondary = 0.00 cfs @ 0.00 hrs, Volume= 0.000 af Routed to Pond 11.4P : East Pond Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 906.84' @ 15.11 hrs Surf.Area= 38,315 sf Storage= 15,396 cf Plug-Flow detention time= 525.8 min calculated for 0.837 af (99% of inflow) Center-of-Mass det. time= 519.6 min ( 1,426.0 - 906.4 ) Volume Invert Avail.Storage Storage Description #1 906.43' 364,823 cf Basin 2 (Prismatic) Listed below (Recalc) Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 906.43 37,075 0 0 908.00 41,840 61,948 61,948 909.00 48,360 45,100 107,048 910.00 66,876 57,618 164,666 911.50 200,000 200,157 364,823 Device Routing Invert Outlet Devices #1 Secondary 910.20'25.0' long x 80.0' breadth EOF Head (feet) 0.20 0.40 0.60 0.80 1.00 1.20 1.40 1.60 Coef. (English) 2.68 2.70 2.70 2.64 2.63 2.64 2.64 2.63 #2 Primary 906.43'24.0" Round Culvert L= 199.0' RCP, sq.cut end projecting, Ke= 0.500 Inlet / Outlet Invert= 906.43' / 904.00' S= 0.0122 '/' Cc= 0.900 n= 0.011 Concrete pipe, straight & clean, Flow Area= 3.14 sf Primary OutFlow Max=1.00 cfs @ 15.11 hrs HW=906.84' TW=904.06' (Dynamic Tailwater) 2=Culvert (Inlet Controls 1.00 cfs @ 2.18 fps) Secondary OutFlow Max=0.00 cfs @ 0.00 hrs HW=906.43' TW=904.00' (Dynamic Tailwater) 1=EOF ( Controls 0.00 cfs) MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 61HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Pond 1P: East Central Temp Basin Inflow Outflow Primary Secondary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)6 5 4 3 2 1 0 Inflow Area=34.862 ac Peak Elev=906.84' Storage=15,396 cf 5.77 cfs 1.00 cfs 1.00 cfs 0.00 cfs MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 62HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Pond 11.4P: East Pond Inflow Area = 40.214 ac, 12.61% Impervious, Inflow Depth > 0.28" for 1.1 Inch Equiv. event Inflow = 1.10 cfs @ 14.98 hrs, Volume= 0.938 af Outflow = 1.10 cfs @ 15.07 hrs, Volume= 0.938 af, Atten= 0%, Lag= 4.9 min Primary = 1.10 cfs @ 15.07 hrs, Volume= 0.938 af Routed to Reach 10R : Lake Susan Drainage Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 904.06' @ 15.07 hrs Surf.Area= 12,345 sf Storage= 738 cf Plug-Flow detention time= 17.7 min calculated for 0.938 af (100% of inflow) Center-of-Mass det. time= 16.7 min ( 1,383.4 - 1,366.7 ) Volume Invert Avail.Storage Storage Description #1 904.00' 68,298 cf Custom Stage Data (Prismatic) Listed below (Recalc) Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 904.00 12,200 0 0 906.00 17,015 29,215 29,215 908.00 22,068 39,083 68,298 Device Routing Invert Outlet Devices #1 Primary 895.97'54.0" Round Culvert L= 232.0' RCP, square edge headwall, Ke= 0.500 Inlet / Outlet Invert= 895.97' / 894.53' S= 0.0062 '/' Cc= 0.900 n= 0.011 Concrete pipe, straight & clean, Flow Area= 15.90 sf #2 Device 1 904.00'84.0" Horiz. Orifice/Grate C= 0.600 Limited to weir flow at low heads #3 Primary 904.00'Custom Weir/Orifice, Cv= 2.62 (C= 3.28) Head (feet) 0.00 0.25 0.50 0.75 1.00 Width (feet) 0.10 7.33 11.00 14.67 22.00 Primary OutFlow Max=1.10 cfs @ 15.07 hrs HW=904.06' TW=0.00' (Dynamic Tailwater) 1=Culvert (Passes 1.06 cfs of 185.06 cfs potential flow) 2=Orifice/Grate (Weir Controls 1.06 cfs @ 0.80 fps) 3=Custom Weir/Orifice (Weir Controls 0.04 cfs @ 0.66 fps) MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 63HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Pond 11.4P: East Pond Inflow Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)1 0 Inflow Area=40.214 ac Peak Elev=904.06' Storage=738 cf 1.10 cfs 1.10 cfs MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 64HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Pond 13P: Live Storage Inflow Area = 5.779 ac, 68.19% Impervious, Inflow Depth = 0.65" for 1.1 Inch Equiv. event Inflow = 6.59 cfs @ 12.15 hrs, Volume= 0.314 af Outflow = 0.61 cfs @ 12.92 hrs, Volume= 0.293 af, Atten= 91%, Lag= 46.5 min Primary = 0.61 cfs @ 12.92 hrs, Volume= 0.293 af Routed to Pond 1P : East Central Temp Basin Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 913.72' @ 12.92 hrs Surf.Area= 4,554 sf Storage= 7,348 cf Plug-Flow detention time= 187.6 min calculated for 0.293 af (93% of inflow) Center-of-Mass det. time= 156.3 min ( 965.9 - 809.7 ) Volume Invert Avail.Storage Storage Description #1A 911.20' 6,060 cf 22.00'W x 207.00'L x 6.00'H Field A 27,324 cf Overall - 12,174 cf Embedded = 15,150 cf x 40.0% Voids #2A 911.70' 12,174 cf CMP Round 60 x 30 Inside #1 Effective Size= 60.0"W x 60.0"H => 19.63 sf x 20.00'L = 392.7 cf Overall Size= 60.0"W x 60.0"H x 20.00'L 30 Chambers in 3 Rows 20.00' Header x 19.63 sf x 1 = 392.7 cf Inside #3 916.70' 6,362 cf 30.00'D x 3.00'H Vertical Cone/Cylinder x 3 24,596 cf Total Available Storage Storage Group A created with Chamber Wizard Device Routing Invert Outlet Devices #1 Primary 911.70'21.0" Round Culvert L= 26.0' RCP, square edge headwall, Ke= 0.500 Inlet / Outlet Invert= 911.70' / 911.62' S= 0.0031 '/' Cc= 0.900 n= 0.013 Concrete pipe, straight & clean, Flow Area= 2.41 sf #2 Device 1 911.70'4.0" Vert. Orifice/Grate C= 0.600 Limited to weir flow at low heads #3 Device 1 913.70'5.0' long Sharp-Crested Rectangular Weir 2 End Contraction(s) 2.0' Crest Height Primary OutFlow Max=0.61 cfs @ 12.92 hrs HW=913.72' TW=906.73' (Dynamic Tailwater) 1=Culvert (Passes 0.61 cfs of 10.11 cfs potential flow) 2=Orifice/Grate (Orifice Controls 0.57 cfs @ 6.55 fps) 3=Sharp-Crested Rectangular Weir (Weir Controls 0.04 cfs @ 0.44 fps) MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 65HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Pond 13P: Live Storage - Chamber Wizard Field A Chamber Model = CMP Round 60 (Round Corrugated Metal Pipe) Effective Size= 60.0"W x 60.0"H => 19.63 sf x 20.00'L = 392.7 cf Overall Size= 60.0"W x 60.0"H x 20.00'L 60.0" Wide + 30.0" Spacing = 90.0" C-C Row Spacing 10 Chambers/Row x 20.00' Long +5.00' Header x 1 = 205.00' Row Length +12.0" End Stone x 2 = 207.00' Base Length 3 Rows x 60.0" Wide + 30.0" Spacing x 2 + 12.0" Side Stone x 2 = 22.00' Base Width 6.0" Stone Base + 60.0" Chamber Height + 6.0" Stone Cover = 6.00' Field Height 30 Chambers x 392.7 cf + 20.00' Header x 19.63 sf = 12,173.7 cf Chamber Storage 27,324.0 cf Field - 12,173.7 cf Chambers = 15,150.3 cf Stone x 40.0% Voids = 6,060.1 cf Stone Storage Chamber Storage + Stone Storage = 18,233.8 cf = 0.419 af Overall Storage Efficiency = 66.7% Overall System Size = 207.00' x 22.00' x 6.00' 30 Chambers 1,012.0 cy Field 561.1 cy Stone MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 66HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Pond 13P: Live Storage Inflow Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)7 6 5 4 3 2 1 0 Inflow Area=5.779 ac Peak Elev=913.72' Storage=7,348 cf 6.59 cfs 0.61 cfs MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 67HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Pond 61P: Englewood Pond [44] Hint: Outlet device #2 is below defined storage [62] Hint: Exceeded Reach 61R OUTLET depth by 0.23' @ 24.75 hrs [62] Hint: Exceeded Reach 62R OUTLET depth by 0.30' @ 24.55 hrs Inflow Area = 70.633 ac, 7.18% Impervious, Inflow Depth = 0.29" for 1.1 Inch Equiv. event Inflow = 11.98 cfs @ 12.22 hrs, Volume= 1.731 af Outflow = 0.76 cfs @ 20.93 hrs, Volume= 1.675 af, Atten= 94%, Lag= 523.1 min Primary = 0.76 cfs @ 20.93 hrs, Volume= 1.675 af Routed to Pond 68P : East MNDOT M10 Wetland Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 892.31' @ 20.93 hrs Surf.Area= 139,883 sf Storage= 43,514 cf Plug-Flow detention time= 1,795.1 min calculated for 1.675 af (97% of inflow) Center-of-Mass det. time= 1,663.0 min ( 2,807.9 - 1,144.9 ) Volume Invert Avail.Storage Storage Description #1 892.00' 1,031,055 cf Custom Stage Data (Prismatic) Listed below (Recalc) Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 892.00 136,580 0 0 895.00 168,060 456,960 456,960 898.00 214,670 574,095 1,031,055 Device Routing Invert Outlet Devices #1 Primary 892.00'42.0" Round Culvert L= 29.0' RCP, square edge headwall, Ke= 0.500 Inlet / Outlet Invert= 892.00' / 891.71' S= 0.0100 '/' Cc= 0.900 n= 0.013 Concrete pipe, straight & clean, Flow Area= 9.62 sf #2 Device 1 887.63'42.0" Round Culvert L= 13.0' RCP, end-section conforming to fill, Ke= 0.500 Inlet / Outlet Invert= 887.50' / 887.63' S= -0.0100 '/' Cc= 0.900 n= 0.013 Concrete pipe, straight & clean, Flow Area= 9.62 sf Primary OutFlow Max=0.76 cfs @ 20.93 hrs HW=892.31' TW=890.30' (Dynamic Tailwater) 1=Culvert (Barrel Controls 0.76 cfs @ 2.70 fps) 2=Culvert (Passes 0.76 cfs of 25.99 cfs potential flow) MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 68HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Pond 61P: Englewood Pond Inflow Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)13 12 11 10 9 8 7 6 5 4 3 2 1 0 Inflow Area=70.633 ac Peak Elev=892.31' Storage=43,514 cf 11.98 cfs 0.76 cfs MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 69HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Pond 65P: Fresh MDW Inflow Area = 12.140 ac, 3.62% Impervious, Inflow Depth = 0.32" for 1.1 Inch Equiv. event Inflow = 4.59 cfs @ 12.17 hrs, Volume= 0.326 af Outflow = 0.19 cfs @ 15.15 hrs, Volume= 0.172 af, Atten= 96%, Lag= 179.3 min Primary = 0.19 cfs @ 15.15 hrs, Volume= 0.172 af Routed to Pond 68P : East MNDOT M10 Wetland Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 896.53' @ 15.15 hrs Surf.Area= 19,831 sf Storage= 10,226 cf Plug-Flow detention time= 923.6 min calculated for 0.172 af (53% of inflow) Center-of-Mass det. time= 821.1 min ( 1,638.2 - 817.1 ) Volume Invert Avail.Storage Storage Description #1 896.00' 123,320 cf Custom Stage Data (Prismatic) Listed below (Recalc) Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 896.00 18,540 0 0 900.00 28,230 93,540 93,540 901.00 31,330 29,780 123,320 Device Routing Invert Outlet Devices #1 Primary 892.35'12.0" Round Culvert L= 35.0' RCP, square edge headwall, Ke= 0.500 Inlet / Outlet Invert= 892.00' / 892.35' S= -0.0100 '/' Cc= 0.900 n= 0.012, Flow Area= 0.79 sf #2 Device 1 896.35'33.0" Round Culvert L= 69.0' RCP, end-section conforming to fill, Ke= 0.500 Inlet / Outlet Invert= 896.35' / 896.01' S= 0.0049 '/' Cc= 0.900 n= 0.012 Concrete pipe, finished, Flow Area= 5.94 sf Primary OutFlow Max=0.19 cfs @ 15.15 hrs HW=896.53' TW=890.10' (Dynamic Tailwater) 1=Culvert (Passes 0.19 cfs of 7.26 cfs potential flow) 2=Culvert (Barrel Controls 0.19 cfs @ 1.68 fps) MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 70HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Pond 65P: Fresh MDW Inflow Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)5 4 3 2 1 0 Inflow Area=12.140 ac Peak Elev=896.53' Storage=10,226 cf 4.59 cfs 0.19 cfs MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 71HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Pond 68P: East MNDOT M10 Wetland Inflow Area = 99.773 ac, 5.52% Impervious, Inflow Depth > 0.24" for 1.1 Inch Equiv. event Inflow = 0.94 cfs @ 19.66 hrs, Volume= 1.977 af Outflow = 0.00 cfs @ 0.00 hrs, Volume= 0.000 af, Atten= 100%, Lag= 0.0 min Primary = 0.00 cfs @ 0.00 hrs, Volume= 0.000 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 890.74' @ 360.00 hrs Surf.Area= 164,707 sf Storage= 86,122 cf Plug-Flow detention time= (not calculated: initial storage exceeds outflow) Center-of-Mass det. time= (not calculated: no outflow) Volume Invert Avail.Storage Storage Description #1 890.00' 1,574,445 cf Custom Stage Data (Prismatic) Listed below (Recalc) Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 890.00 68,660 0 0 891.00 198,790 133,725 133,725 892.00 340,250 269,520 403,245 895.00 440,550 1,171,200 1,574,445 Device Routing Invert Outlet Devices #1 Primary 890.30'18.0" Round Culvert L= 155.0' RCP, square edge headwall, Ke= 0.500 Inlet / Outlet Invert= 890.30' / 889.53' S= 0.0050 '/' Cc= 0.900 n= 0.013 Concrete pipe, straight & clean, Flow Area= 1.77 sf #2 Device 1 891.00'10.0" Vert. Orifice/Grate C= 0.600 Limited to weir flow at low heads #3 Device 2 890.50'18.0" Round Culvert L= 40.0' RCP, end-section conforming to fill, Ke= 0.500 Inlet / Outlet Invert= 890.30' / 890.50' S= -0.0050 '/' Cc= 0.900 n= 0.013 Concrete pipe, straight & clean, Flow Area= 1.77 sf Primary OutFlow Max=0.00 cfs @ 0.00 hrs HW=890.00' (Free Discharge) 1=Culvert ( Controls 0.00 cfs) 2=Orifice/Grate ( Controls 0.00 cfs) 3=Culvert ( Controls 0.00 cfs) MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 72HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Pond 68P: East MNDOT M10 Wetland Inflow Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)1 0 Inflow Area=99.773 ac Peak Elev=890.74' Storage=86,122 cf 0.94 cfs 0.00 cfs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 73HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Time span=0.00-360.00 hrs, dt=0.01 hrs, 36001 points Runoff by SCS TR-20 method, UH=SCS, Weighted-CN Reach routing by Dyn-Stor-Ind method - Pond routing by Dyn-Stor-Ind method Runoff Area=1,266,860 sf 2.93% Impervious Runoff Depth=1.21"Subcatchment 1S: North East Flow Length=1,058' Tc=23.9 min CN=81 Runoff=33.02 cfs 2.943 af Runoff Area=35,675 sf 0.00% Impervious Runoff Depth=1.15"Subcatchment 11oS: Offsite East Flow Length=94' Slope=0.0430 '/' Tc=10.6 min CN=80 Runoff=1.32 cfs 0.079 af Runoff Area=233,115 sf 5.23% Impervious Runoff Depth=1.21"Subcatchment 11S: East Flow Length=783' Tc=24.3 min CN=81 Runoff=6.03 cfs 0.542 af Subcatchment 12S: (new Subcat) Runoff=0.00 cfs 0.000 af Runoff Area=251,740 sf 0.00% Impervious Runoff Depth=1.15"Subcatchment 013S: Undeveloped Site of Tc=30.0 min CN=80 Runoff=5.46 cfs 0.555 af Runoff Area=251,740 sf 68.19% Impervious Runoff Depth=2.04"Subcatchment 13S: Rowhomes Tc=7.5 min CN=92 Runoff=19.14 cfs 0.982 af Runoff Area=9.400 ac 0.00% Impervious Runoff Depth=1.63"Subcatchment 61S: Powers (from SRF) Tc=9.0 min CN=87 Runoff=23.53 cfs 1.274 af Runoff Area=4.200 ac 0.00% Impervious Runoff Depth=1.21"Subcatchment 62S: NE Ramp (from SRF) Tc=8.0 min CN=81 Runoff=8.07 cfs 0.425 af Runoff Area=8.200 ac 0.00% Impervious Runoff Depth=1.63"Subcatchment 63S: TH 212 (from SRF) Tc=12.0 min CN=87 Runoff=18.02 cfs 1.111 af Runoff Area=7.800 ac 0.00% Impervious Runoff Depth=0.98"Subcatchment 64S: Englewood (from SRF) Tc=10.0 min CN=77 Runoff=10.71 cfs 0.638 af Runoff Area=6.400 ac 0.00% Impervious Runoff Depth=1.34"Subcatchment 65S: LYMLP (from SRF) Tc=15.0 min CN=83 Runoff=10.31 cfs 0.716 af Runoff Area=1.900 ac 0.00% Impervious Runoff Depth=2.22"Subcatchment 66S: N54 (from SRF) Tc=7.6 min CN=94 Runoff=6.75 cfs 0.352 af Runoff Area=0.440 ac 100.00% Impervious Runoff Depth=2.87"Subcatchment 67-1S: Fresh MDW Tc=7.0 min CN=100 Runoff=1.81 cfs 0.105 af Runoff Area=1.100 ac 0.00% Impervious Runoff Depth=0.69"Subcatchment 67-2S: Fresh MDW Subcatch Tc=7.0 min CN=71 Runoff=1.11 cfs 0.063 af Runoff Area=2.300 ac 0.00% Impervious Runoff Depth=0.00"Subcatchment 67-3S: Fresh MDW Subcatch Tc=83.0 min CN=10 Runoff=0.00 cfs 0.000 af Runoff Area=17.000 ac 0.00% Impervious Runoff Depth=0.83"Subcatchment 68S: M10 Tc=10.0 min CN=74 Runoff=18.87 cfs 1.171 af MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 74HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Inflow=15.64 cfs 4.520 afReach 10R: Lake Susan Drainage Outflow=15.64 cfs 4.520 af Avg. Flow Depth=0.91' Max Vel=2.50 fps Inflow=26.77 cfs 5.793 afReach 61R: NERDITCH n=0.035 L=545.0' S=0.0055 '/' Capacity=737.08 cfs Outflow=24.40 cfs 5.793 af Avg. Flow Depth=0.96' Max Vel=5.41 fps Inflow=8.07 cfs 0.425 afReach 62R: L42 24.0" Round Pipe n=0.012 L=200.0' S=0.0050 '/' Capacity=17.33 cfs Outflow=8.02 cfs 0.425 af Peak Elev=908.14' Storage=68,073 cf Inflow=41.23 cfs 3.904 afPond 1P: East Central Temp Basin Primary=12.78 cfs 3.899 af Secondary=0.00 cfs 0.000 af Outflow=12.78 cfs 3.899 af Peak Elev=904.32' Storage=4,055 cf Inflow=15.46 cfs 4.441 afPond 11.4P: East Pond Outflow=15.41 cfs 4.441 af Peak Elev=914.68' Storage=10,875 cf Inflow=19.14 cfs 0.982 afPond 13P: Live Storage Outflow=16.08 cfs 0.961 af Peak Elev=893.16' Storage=165,089 cf Inflow=59.96 cfs 7.968 afPond 61P: Englewood Pond Outflow=8.35 cfs 7.911 af Peak Elev=897.28' Storage=25,704 cf Inflow=17.19 cfs 1.236 afPond 65P: Fresh MDW Outflow=4.58 cfs 1.082 af Peak Elev=891.75' Storage=321,252 cf Inflow=20.60 cfs 10.165 afPond 68P: East MNDOT M10 Wetland Outflow=1.51 cfs 6.845 af Total Runoff Area = 105.552 ac Runoff Volume = 10.957 af Average Runoff Depth = 1.25" 94.78% Pervious = 100.040 ac 5.22% Impervious = 5.512 ac MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 75HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 1S: North East Runoff = 33.02 cfs @ 12.34 hrs, Volume= 2.943 af, Depth= 1.21" Routed to Pond 1P : East Central Temp Basin Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Area (sf) CN Description * 1,229,785 80 >75% Grass cover, Good, HSG D * 37,075 100 Water 1,266,860 81 Weighted Average 1,229,785 97.07% Pervious Area 37,075 2.93% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 5.2 100 0.1100 0.32 Sheet Flow, Grass: Short n= 0.150 P2= 2.87" 6.8 460 0.0260 1.13 Shallow Concentrated Flow, Short Grass Pasture Kv= 7.0 fps 11.9 498 0.0100 0.70 Shallow Concentrated Flow, Short Grass Pasture Kv= 7.0 fps 23.9 1,058 Total Subcatchment 1S: North East Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)36 34 32 30 28 26 24 22 20 18 16 14 12 10 8 6 4 2 0 MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Runoff Area=1,266,860 sf Runoff Volume=2.943 af Runoff Depth=1.21" Flow Length=1,058' Tc=23.9 min CN=81 33.02 cfs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 76HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 11oS: Offsite East Runoff = 1.32 cfs @ 12.15 hrs, Volume= 0.079 af, Depth= 1.15" Routed to Reach 10R : Lake Susan Drainage Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Area (sf) CN Description 35,675 80 >75% Grass cover, Good, HSG D 35,675 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 10.6 94 0.0430 0.15 Sheet Flow, Grass: Dense n= 0.240 P2= 2.87" Subcatchment 11oS: Offsite East Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)1 0 MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Runoff Area=35,675 sf Runoff Volume=0.079 af Runoff Depth=1.15" Flow Length=94' Slope=0.0430 '/' Tc=10.6 min CN=80 1.32 cfs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 77HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 11S: East Runoff = 6.03 cfs @ 12.34 hrs, Volume= 0.542 af, Depth= 1.21" Routed to Pond 11.4P : East Pond Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Area (sf) CN Description * 220,915 80 >75% Grass cover, Good, HSG D 12,200 98 Water Surface, HSG D 233,115 81 Weighted Average 220,915 94.77% Pervious Area 12,200 5.23% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 9.9 178 0.0700 0.30 Sheet Flow, Grass: Short n= 0.150 P2= 2.87" 14.4 605 0.0100 0.70 Shallow Concentrated Flow, Short Grass Pasture Kv= 7.0 fps 24.3 783 Total Subcatchment 11S: East Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)6 5 4 3 2 1 0 MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Runoff Area=233,115 sf Runoff Volume=0.542 af Runoff Depth=1.21" Flow Length=783' Tc=24.3 min CN=81 6.03 cfs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 78HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 12S: (new Subcat) [40] Hint: Not Described (Area=0) Runoff = 0.00 cfs @ 0.00 hrs, Volume= 0.000 af, Depth= 0.00" Routed to Pond 13P : Live Storage Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Subcatchment 12S: (new Subcat) Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)1 0 MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" 0.00 cfs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 79HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 013S: Undeveloped Site of Rowhomes Runoff = 5.46 cfs @ 12.43 hrs, Volume= 0.555 af, Depth= 1.15" Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Area (sf) CN Description 251,740 80 >75% Grass cover, Good, HSG D 251,740 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 30.0 Direct Entry, Subcatchment 013S: Undeveloped Site of Rowhomes Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)6 5 4 3 2 1 0 MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Runoff Area=251,740 sf Runoff Volume=0.555 af Runoff Depth=1.15" Tc=30.0 min CN=80 5.46 cfs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 80HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 13S: Rowhomes Runoff = 19.14 cfs @ 12.10 hrs, Volume= 0.982 af, Depth= 2.04" Routed to Pond 13P : Live Storage Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Area (sf) CN Description 93,825 98 Roofs, HSG D 77,845 98 Paved parking, HSG D 80,070 80 >75% Grass cover, Good, HSG D 251,740 92 Weighted Average 80,070 31.81% Pervious Area 171,670 68.19% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 7.5 Direct Entry, Subcatchment 13S: Rowhomes Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Runoff Area=251,740 sf Runoff Volume=0.982 af Runoff Depth=2.04" Tc=7.5 min CN=92 19.14 cfs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 81HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 61S: Powers (from SRF) Runoff = 23.53 cfs @ 12.12 hrs, Volume= 1.274 af, Depth= 1.63" Routed to Reach 61R : NERDITCH Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Area (ac) CN Description * 9.400 87 Weighted 9.400 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 9.0 Direct Entry, Subcatchment 61S: Powers (from SRF) Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Runoff Area=9.400 ac Runoff Volume=1.274 af Runoff Depth=1.63" Tc=9.0 min CN=87 23.53 cfs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 82HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 62S: NE Ramp (from SRF) Runoff = 8.07 cfs @ 12.11 hrs, Volume= 0.425 af, Depth= 1.21" Routed to Reach 62R : L42 Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Area (ac) CN Description * 4.200 81 Weighted 4.200 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 8.0 Direct Entry, Subcatchment 62S: NE Ramp (from SRF) Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)9 8 7 6 5 4 3 2 1 0 MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Runoff Area=4.200 ac Runoff Volume=0.425 af Runoff Depth=1.21" Tc=8.0 min CN=81 8.07 cfs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 83HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 63S: TH 212 (from SRF) Runoff = 18.02 cfs @ 12.17 hrs, Volume= 1.111 af, Depth= 1.63" Routed to Pond 61P : Englewood Pond Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Area (ac) CN Description * 8.200 87 Weighted 8.200 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 12.0 Direct Entry, Subcatchment 63S: TH 212 (from SRF) Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Runoff Area=8.200 ac Runoff Volume=1.111 af Runoff Depth=1.63" Tc=12.0 min CN=87 18.02 cfs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 84HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 64S: Englewood (from SRF) Runoff = 10.71 cfs @ 12.14 hrs, Volume= 0.638 af, Depth= 0.98" Routed to Pond 61P : Englewood Pond Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Area (ac) CN Description * 7.800 77 Weighted 7.800 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 10.0 Direct Entry, Subcatchment 64S: Englewood (from SRF) Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)11 10 9 8 7 6 5 4 3 2 1 0 MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Runoff Area=7.800 ac Runoff Volume=0.638 af Runoff Depth=0.98" Tc=10.0 min CN=77 10.71 cfs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 85HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 65S: LYMLP (from SRF) Runoff = 10.31 cfs @ 12.21 hrs, Volume= 0.716 af, Depth= 1.34" Routed to Pond 65P : Fresh MDW Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Area (ac) CN Description * 6.400 83 Weighted 6.400 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 15.0 Direct Entry, Subcatchment 65S: LYMLP (from SRF) Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)11 10 9 8 7 6 5 4 3 2 1 0 MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Runoff Area=6.400 ac Runoff Volume=0.716 af Runoff Depth=1.34" Tc=15.0 min CN=83 10.31 cfs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 86HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 66S: N54 (from SRF) Runoff = 6.75 cfs @ 12.10 hrs, Volume= 0.352 af, Depth= 2.22" Routed to Pond 65P : Fresh MDW Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Area (ac) CN Description * 1.900 94 Weighted 1.900 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 7.6 Direct Entry, Subcatchment 66S: N54 (from SRF) Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)7 6 5 4 3 2 1 0 MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Runoff Area=1.900 ac Runoff Volume=0.352 af Runoff Depth=2.22" Tc=7.6 min CN=94 6.75 cfs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 87HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 67-1S: Fresh MDW Subcatch 1 (from SRF) Runoff = 1.81 cfs @ 12.09 hrs, Volume= 0.105 af, Depth= 2.87" Routed to Pond 65P : Fresh MDW Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Area (ac) CN Description * 0.440 100 Weighted 0.440 100.00% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 7.0 Direct Entry, Subcatchment 67-1S: Fresh MDW Subcatch 1 (from SRF) Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)2 1 0 MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Runoff Area=0.440 ac Runoff Volume=0.105 af Runoff Depth=2.87" Tc=7.0 min CN=100 1.81 cfs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 88HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 67-2S: Fresh MDW Subcatch 2 (from SRF) Runoff = 1.11 cfs @ 12.11 hrs, Volume= 0.063 af, Depth= 0.69" Routed to Pond 65P : Fresh MDW Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Area (ac) CN Description * 1.100 71 Weighted 1.100 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 7.0 Direct Entry, Subcatchment 67-2S: Fresh MDW Subcatch 2 (from SRF) Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)1 0 MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Runoff Area=1.100 ac Runoff Volume=0.063 af Runoff Depth=0.69" Tc=7.0 min CN=71 1.11 cfs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 89HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 67-3S: Fresh MDW Subcatch 3 (from SRF) [45] Hint: Runoff=Zero Runoff = 0.00 cfs @ 0.00 hrs, Volume= 0.000 af, Depth= 0.00" Routed to Pond 65P : Fresh MDW Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Area (ac) CN Description * 2.300 10 Weighted 2.300 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 83.0 Direct Entry, Subcatchment 67-3S: Fresh MDW Subcatch 3 (from SRF) Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)1 0 MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Runoff Area=2.300 ac Runoff Volume=0.000 af Runoff Depth=0.00" Tc=83.0 min CN=10 0.00 cfs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 90HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 68S: M10 Runoff = 18.87 cfs @ 12.15 hrs, Volume= 1.171 af, Depth= 0.83" Routed to Pond 68P : East MNDOT M10 Wetland Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Area (ac) CN Description * 17.000 74 Weighted 17.000 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 10.0 Direct Entry, Subcatchment 68S: M10 Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Runoff Area=17.000 ac Runoff Volume=1.171 af Runoff Depth=0.83" Tc=10.0 min CN=74 18.87 cfs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 91HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Reach 10R: Lake Susan Drainage [40] Hint: Not Described (Outflow=Inflow) Inflow Area = 41.033 ac, 12.36% Impervious, Inflow Depth = 1.32" for 2y 24hr event Inflow = 15.64 cfs @ 12.66 hrs, Volume= 4.520 af Outflow = 15.64 cfs @ 12.66 hrs, Volume= 4.520 af, Atten= 0%, Lag= 0.0 min Routed to Reach 61R : NERDITCH Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Reach 10R: Lake Susan Drainage Inflow Outflow Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 Inflow Area=41.033 ac 15.64 cfs 15.64 cfs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 92HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Reach 61R: NERDITCH Inflow Area = 50.433 ac, 10.06% Impervious, Inflow Depth = 1.38" for 2y 24hr event Inflow = 26.77 cfs @ 12.13 hrs, Volume= 5.793 af Outflow = 24.40 cfs @ 12.18 hrs, Volume= 5.793 af, Atten= 9%, Lag= 2.7 min Routed to Pond 61P : Englewood Pond Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Max. Velocity= 2.50 fps, Min. Travel Time= 3.6 min Avg. Velocity = 0.46 fps, Avg. Travel Time= 19.8 min Peak Storage= 5,310 cf @ 12.18 hrs Average Depth at Peak Storage= 0.91' , Surface Width= 13.45' Bank-Full Depth= 5.00' Flow Area= 115.0 sf, Capacity= 737.08 cfs 8.00' x 5.00' deep channel, n= 0.035 Side Slope Z-value= 3.0 '/' Top Width= 38.00' Length= 545.0' Slope= 0.0055 '/' Inlet Invert= 895.00', Outlet Invert= 892.00' ‡ Reach 61R: NERDITCH Inflow Outflow Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)28 26 24 22 20 18 16 14 12 10 8 6 4 2 0 Inflow Area=50.433 ac Avg. Flow Depth=0.91' Max Vel=2.50 fps n=0.035 L=545.0' S=0.0055 '/' Capacity=737.08 cfs 26.77 cfs 24.40 cfs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 93HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Reach 62R: L42 [52] Hint: Inlet/Outlet conditions not evaluated Inflow Area = 4.200 ac, 0.00% Impervious, Inflow Depth = 1.21" for 2y 24hr event Inflow = 8.07 cfs @ 12.11 hrs, Volume= 0.425 af Outflow = 8.02 cfs @ 12.12 hrs, Volume= 0.425 af, Atten= 1%, Lag= 0.5 min Routed to Pond 61P : Englewood Pond Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Max. Velocity= 5.41 fps, Min. Travel Time= 0.6 min Avg. Velocity = 1.78 fps, Avg. Travel Time= 1.9 min Peak Storage= 297 cf @ 12.12 hrs Average Depth at Peak Storage= 0.96' , Surface Width= 2.00' Bank-Full Depth= 2.00' Flow Area= 3.1 sf, Capacity= 17.33 cfs 24.0" Round Pipe n= 0.012 Length= 200.0' Slope= 0.0050 '/' Inlet Invert= 893.00', Outlet Invert= 892.00' MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 94HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Reach 62R: L42 Inflow Outflow Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)9 8 7 6 5 4 3 2 1 0 Inflow Area=4.200 ac Avg. Flow Depth=0.96' Max Vel=5.41 fps 24.0" Round Pipe n=0.012 L=200.0' S=0.0050 '/' Capacity=17.33 cfs 8.07 cfs 8.02 cfs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 95HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Pond 1P: East Central Temp Basin Inflow Area = 34.862 ac, 13.75% Impervious, Inflow Depth = 1.34" for 2y 24hr event Inflow = 41.23 cfs @ 12.30 hrs, Volume= 3.904 af Outflow = 12.78 cfs @ 12.84 hrs, Volume= 3.899 af, Atten= 69%, Lag= 32.8 min Primary = 12.78 cfs @ 12.84 hrs, Volume= 3.899 af Routed to Pond 11.4P : East Pond Secondary = 0.00 cfs @ 0.00 hrs, Volume= 0.000 af Routed to Pond 11.4P : East Pond Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 908.14' @ 12.84 hrs Surf.Area= 42,784 sf Storage= 68,073 cf Plug-Flow detention time= 199.1 min calculated for 3.899 af (100% of inflow) Center-of-Mass det. time= 197.5 min ( 1,051.3 - 853.7 ) Volume Invert Avail.Storage Storage Description #1 906.43' 364,823 cf Basin 2 (Prismatic) Listed below (Recalc) Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 906.43 37,075 0 0 908.00 41,840 61,948 61,948 909.00 48,360 45,100 107,048 910.00 66,876 57,618 164,666 911.50 200,000 200,157 364,823 Device Routing Invert Outlet Devices #1 Secondary 910.20'25.0' long x 80.0' breadth EOF Head (feet) 0.20 0.40 0.60 0.80 1.00 1.20 1.40 1.60 Coef. (English) 2.68 2.70 2.70 2.64 2.63 2.64 2.64 2.63 #2 Primary 906.43'24.0" Round Culvert L= 199.0' RCP, sq.cut end projecting, Ke= 0.500 Inlet / Outlet Invert= 906.43' / 904.00' S= 0.0122 '/' Cc= 0.900 n= 0.011 Concrete pipe, straight & clean, Flow Area= 3.14 sf Primary OutFlow Max=12.78 cfs @ 12.84 hrs HW=908.14' TW=904.32' (Dynamic Tailwater) 2=Culvert (Inlet Controls 12.78 cfs @ 4.46 fps) Secondary OutFlow Max=0.00 cfs @ 0.00 hrs HW=906.43' TW=904.00' (Dynamic Tailwater) 1=EOF ( Controls 0.00 cfs) MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 96HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Pond 1P: East Central Temp Basin Inflow Outflow Primary Secondary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)46 44 42 40 38 36 34 32 30 28 26 24 22 20 18 16 14 12 10 8 6 4 2 0 Inflow Area=34.862 ac Peak Elev=908.14' Storage=68,073 cf 41.23 cfs 12.78 cfs 12.78 cfs 0.00 cfs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 97HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Pond 11.4P: East Pond Inflow Area = 40.214 ac, 12.61% Impervious, Inflow Depth = 1.33" for 2y 24hr event Inflow = 15.46 cfs @ 12.63 hrs, Volume= 4.441 af Outflow = 15.41 cfs @ 12.68 hrs, Volume= 4.441 af, Atten= 0%, Lag= 3.0 min Primary = 15.41 cfs @ 12.68 hrs, Volume= 4.441 af Routed to Reach 10R : Lake Susan Drainage Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 904.32' @ 12.68 hrs Surf.Area= 12,976 sf Storage= 4,055 cf Plug-Flow detention time= 8.2 min calculated for 4.441 af (100% of inflow) Center-of-Mass det. time= 8.0 min ( 1,034.1 - 1,026.2 ) Volume Invert Avail.Storage Storage Description #1 904.00' 68,298 cf Custom Stage Data (Prismatic) Listed below (Recalc) Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 904.00 12,200 0 0 906.00 17,015 29,215 29,215 908.00 22,068 39,083 68,298 Device Routing Invert Outlet Devices #1 Primary 895.97'54.0" Round Culvert L= 232.0' RCP, square edge headwall, Ke= 0.500 Inlet / Outlet Invert= 895.97' / 894.53' S= 0.0062 '/' Cc= 0.900 n= 0.011 Concrete pipe, straight & clean, Flow Area= 15.90 sf #2 Device 1 904.00'84.0" Horiz. Orifice/Grate C= 0.600 Limited to weir flow at low heads #3 Primary 904.00'Custom Weir/Orifice, Cv= 2.62 (C= 3.28) Head (feet) 0.00 0.25 0.50 0.75 1.00 Width (feet) 0.10 7.33 11.00 14.67 22.00 Primary OutFlow Max=15.41 cfs @ 12.68 hrs HW=904.32' TW=0.00' (Dynamic Tailwater) 1=Culvert (Passes 13.15 cfs of 189.17 cfs potential flow) 2=Orifice/Grate (Weir Controls 13.15 cfs @ 1.86 fps) 3=Custom Weir/Orifice (Weir Controls 2.26 cfs @ 1.51 fps) MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 98HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Pond 11.4P: East Pond Inflow Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 Inflow Area=40.214 ac Peak Elev=904.32' Storage=4,055 cf 15.46 cfs 15.41 cfs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 99HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Pond 13P: Live Storage Inflow Area = 5.779 ac, 68.19% Impervious, Inflow Depth = 2.04" for 2y 24hr event Inflow = 19.14 cfs @ 12.10 hrs, Volume= 0.982 af Outflow = 16.08 cfs @ 12.15 hrs, Volume= 0.961 af, Atten= 16%, Lag= 2.8 min Primary = 16.08 cfs @ 12.15 hrs, Volume= 0.961 af Routed to Pond 1P : East Central Temp Basin Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 914.68' @ 12.15 hrs Surf.Area= 4,554 sf Storage= 10,875 cf Plug-Flow detention time= 97.6 min calculated for 0.961 af (98% of inflow) Center-of-Mass det. time= 84.9 min ( 879.8 - 794.9 ) Volume Invert Avail.Storage Storage Description #1A 911.20' 6,060 cf 22.00'W x 207.00'L x 6.00'H Field A 27,324 cf Overall - 12,174 cf Embedded = 15,150 cf x 40.0% Voids #2A 911.70' 12,174 cf CMP Round 60 x 30 Inside #1 Effective Size= 60.0"W x 60.0"H => 19.63 sf x 20.00'L = 392.7 cf Overall Size= 60.0"W x 60.0"H x 20.00'L 30 Chambers in 3 Rows 20.00' Header x 19.63 sf x 1 = 392.7 cf Inside #3 916.70' 6,362 cf 30.00'D x 3.00'H Vertical Cone/Cylinder x 3 24,596 cf Total Available Storage Storage Group A created with Chamber Wizard Device Routing Invert Outlet Devices #1 Primary 911.70'21.0" Round Culvert L= 26.0' RCP, square edge headwall, Ke= 0.500 Inlet / Outlet Invert= 911.70' / 911.62' S= 0.0031 '/' Cc= 0.900 n= 0.013 Concrete pipe, straight & clean, Flow Area= 2.41 sf #2 Device 1 911.70'4.0" Vert. Orifice/Grate C= 0.600 Limited to weir flow at low heads #3 Device 1 913.70'5.0' long Sharp-Crested Rectangular Weir 2 End Contraction(s) 2.0' Crest Height Primary OutFlow Max=16.07 cfs @ 12.15 hrs HW=914.68' TW=906.91' (Dynamic Tailwater) 1=Culvert (Barrel Controls 16.07 cfs @ 6.68 fps) 2=Orifice/Grate (Passes < 0.70 cfs potential flow) 3=Sharp-Crested Rectangular Weir (Passes < 16.12 cfs potential flow) MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 100HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Pond 13P: Live Storage - Chamber Wizard Field A Chamber Model = CMP Round 60 (Round Corrugated Metal Pipe) Effective Size= 60.0"W x 60.0"H => 19.63 sf x 20.00'L = 392.7 cf Overall Size= 60.0"W x 60.0"H x 20.00'L 60.0" Wide + 30.0" Spacing = 90.0" C-C Row Spacing 10 Chambers/Row x 20.00' Long +5.00' Header x 1 = 205.00' Row Length +12.0" End Stone x 2 = 207.00' Base Length 3 Rows x 60.0" Wide + 30.0" Spacing x 2 + 12.0" Side Stone x 2 = 22.00' Base Width 6.0" Stone Base + 60.0" Chamber Height + 6.0" Stone Cover = 6.00' Field Height 30 Chambers x 392.7 cf + 20.00' Header x 19.63 sf = 12,173.7 cf Chamber Storage 27,324.0 cf Field - 12,173.7 cf Chambers = 15,150.3 cf Stone x 40.0% Voids = 6,060.1 cf Stone Storage Chamber Storage + Stone Storage = 18,233.8 cf = 0.419 af Overall Storage Efficiency = 66.7% Overall System Size = 207.00' x 22.00' x 6.00' 30 Chambers 1,012.0 cy Field 561.1 cy Stone MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 101HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Pond 13P: Live Storage Inflow Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 Inflow Area=5.779 ac Peak Elev=914.68' Storage=10,875 cf 19.14 cfs 16.08 cfs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 102HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Pond 61P: Englewood Pond [44] Hint: Outlet device #2 is below defined storage [62] Hint: Exceeded Reach 61R OUTLET depth by 0.78' @ 16.04 hrs [63] Warning: Exceeded Reach 62R INLET depth by 0.01' @ 15.29 hrs Inflow Area = 70.633 ac, 7.18% Impervious, Inflow Depth = 1.35" for 2y 24hr event Inflow = 59.96 cfs @ 12.16 hrs, Volume= 7.968 af Outflow = 8.35 cfs @ 14.96 hrs, Volume= 7.911 af, Atten= 86%, Lag= 167.9 min Primary = 8.35 cfs @ 14.96 hrs, Volume= 7.911 af Routed to Pond 68P : East MNDOT M10 Wetland Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 893.16' @ 14.96 hrs Surf.Area= 148,724 sf Storage= 165,089 cf Plug-Flow detention time= 673.7 min calculated for 7.911 af (99% of inflow) Center-of-Mass det. time= 643.1 min ( 1,588.4 - 945.2 ) Volume Invert Avail.Storage Storage Description #1 892.00' 1,031,055 cf Custom Stage Data (Prismatic) Listed below (Recalc) Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 892.00 136,580 0 0 895.00 168,060 456,960 456,960 898.00 214,670 574,095 1,031,055 Device Routing Invert Outlet Devices #1 Primary 892.00'42.0" Round Culvert L= 29.0' RCP, square edge headwall, Ke= 0.500 Inlet / Outlet Invert= 892.00' / 891.71' S= 0.0100 '/' Cc= 0.900 n= 0.013 Concrete pipe, straight & clean, Flow Area= 9.62 sf #2 Device 1 887.63'42.0" Round Culvert L= 13.0' RCP, end-section conforming to fill, Ke= 0.500 Inlet / Outlet Invert= 887.50' / 887.63' S= -0.0100 '/' Cc= 0.900 n= 0.013 Concrete pipe, straight & clean, Flow Area= 9.62 sf Primary OutFlow Max=8.35 cfs @ 14.96 hrs HW=893.16' TW=890.97' (Dynamic Tailwater) 1=Culvert (Barrel Controls 8.35 cfs @ 4.49 fps) 2=Culvert (Passes 8.35 cfs of 49.84 cfs potential flow) MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 103HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Pond 61P: Englewood Pond Inflow Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)65 60 55 50 45 40 35 30 25 20 15 10 5 0 Inflow Area=70.633 ac Peak Elev=893.16' Storage=165,089 cf 59.96 cfs 8.35 cfs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 104HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Pond 65P: Fresh MDW Inflow Area = 12.140 ac, 3.62% Impervious, Inflow Depth = 1.22" for 2y 24hr event Inflow = 17.19 cfs @ 12.14 hrs, Volume= 1.236 af Outflow = 4.58 cfs @ 12.60 hrs, Volume= 1.082 af, Atten= 73%, Lag= 27.9 min Primary = 4.58 cfs @ 12.60 hrs, Volume= 1.082 af Routed to Pond 68P : East MNDOT M10 Wetland Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 897.28' @ 12.60 hrs Surf.Area= 21,640 sf Storage= 25,704 cf Plug-Flow detention time= 281.3 min calculated for 1.082 af (88% of inflow) Center-of-Mass det. time= 225.0 min ( 1,035.9 - 810.9 ) Volume Invert Avail.Storage Storage Description #1 896.00' 123,320 cf Custom Stage Data (Prismatic) Listed below (Recalc) Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 896.00 18,540 0 0 900.00 28,230 93,540 93,540 901.00 31,330 29,780 123,320 Device Routing Invert Outlet Devices #1 Primary 892.35'12.0" Round Culvert L= 35.0' RCP, square edge headwall, Ke= 0.500 Inlet / Outlet Invert= 892.00' / 892.35' S= -0.0100 '/' Cc= 0.900 n= 0.012, Flow Area= 0.79 sf #2 Device 1 896.35'33.0" Round Culvert L= 69.0' RCP, end-section conforming to fill, Ke= 0.500 Inlet / Outlet Invert= 896.35' / 896.01' S= 0.0049 '/' Cc= 0.900 n= 0.012 Concrete pipe, finished, Flow Area= 5.94 sf Primary OutFlow Max=4.58 cfs @ 12.60 hrs HW=897.28' TW=890.37' (Dynamic Tailwater) 1=Culvert (Passes 4.58 cfs of 7.96 cfs potential flow) 2=Culvert (Barrel Controls 4.58 cfs @ 3.87 fps) MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 105HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Pond 65P: Fresh MDW Inflow Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 Inflow Area=12.140 ac Peak Elev=897.28' Storage=25,704 cf 17.19 cfs 4.58 cfs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 106HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Pond 68P: East MNDOT M10 Wetland Inflow Area = 99.773 ac, 5.52% Impervious, Inflow Depth = 1.22" for 2y 24hr event Inflow = 20.60 cfs @ 12.16 hrs, Volume= 10.165 af Outflow = 1.51 cfs @ 29.35 hrs, Volume= 6.845 af, Atten= 93%, Lag= 1,031.3 min Primary = 1.51 cfs @ 29.35 hrs, Volume= 6.845 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 891.75' @ 29.35 hrs Surf.Area= 304,258 sf Storage= 321,252 cf Plug-Flow detention time= 3,175.2 min calculated for 6.845 af (67% of inflow) Center-of-Mass det. time= 2,685.6 min ( 4,130.4 - 1,444.8 ) Volume Invert Avail.Storage Storage Description #1 890.00' 1,574,445 cf Custom Stage Data (Prismatic) Listed below (Recalc) Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 890.00 68,660 0 0 891.00 198,790 133,725 133,725 892.00 340,250 269,520 403,245 895.00 440,550 1,171,200 1,574,445 Device Routing Invert Outlet Devices #1 Primary 890.30'18.0" Round Culvert L= 155.0' RCP, square edge headwall, Ke= 0.500 Inlet / Outlet Invert= 890.30' / 889.53' S= 0.0050 '/' Cc= 0.900 n= 0.013 Concrete pipe, straight & clean, Flow Area= 1.77 sf #2 Device 1 891.00'10.0" Vert. Orifice/Grate C= 0.600 Limited to weir flow at low heads #3 Device 2 890.50'18.0" Round Culvert L= 40.0' RCP, end-section conforming to fill, Ke= 0.500 Inlet / Outlet Invert= 890.30' / 890.50' S= -0.0050 '/' Cc= 0.900 n= 0.013 Concrete pipe, straight & clean, Flow Area= 1.77 sf Primary OutFlow Max=1.51 cfs @ 29.35 hrs HW=891.75' (Free Discharge) 1=Culvert (Passes 1.51 cfs of 6.04 cfs potential flow) 2=Orifice/Grate (Orifice Controls 1.51 cfs @ 2.94 fps) 3=Culvert (Passes 1.51 cfs of 4.58 cfs potential flow) MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 107HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Pond 68P: East MNDOT M10 Wetland Inflow Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 Inflow Area=99.773 ac Peak Elev=891.75' Storage=321,252 cf 20.60 cfs 1.51 cfs MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 108HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Time span=0.00-360.00 hrs, dt=0.01 hrs, 36001 points Runoff by SCS TR-20 method, UH=SCS, Weighted-CN Reach routing by Dyn-Stor-Ind method - Pond routing by Dyn-Stor-Ind method Runoff Area=1,266,860 sf 2.93% Impervious Runoff Depth=6.96"Subcatchment 1S: North East Flow Length=1,058' Tc=23.9 min AMC Adjusted CN=98 Runoff=5.52 cfs 16.870 af Runoff Area=35,675 sf 0.00% Impervious Runoff Depth=6.96"Subcatchment 11oS: Offsite East Flow Length=94' Slope=0.0430 '/' Tc=10.6 min AMC Adjusted CN=98 Runoff=0.16 cfs 0.475 af Runoff Area=233,115 sf 5.23% Impervious Runoff Depth=6.96"Subcatchment 11S: East Flow Length=783' Tc=24.3 min AMC Adjusted CN=98 Runoff=1.01 cfs 3.104 af Subcatchment 12S: (new Subcat) Runoff=0.00 cfs 0.000 af Runoff Area=251,740 sf 0.00% Impervious Runoff Depth=6.96"Subcatchment 013S: Undeveloped Site of Tc=30.0 min AMC Adjusted CN=98 Runoff=1.09 cfs 3.352 af Runoff Area=251,740 sf 68.19% Impervious Runoff Depth=6.96"Subcatchment 13S: Rowhomes Tc=7.5 min AMC Adjusted CN=98 Runoff=1.10 cfs 3.352 af Runoff Area=9.400 ac 0.00% Impervious Runoff Depth=6.96"Subcatchment 61S: Powers (from SRF) Tc=9.0 min AMC Adjusted CN=98 Runoff=1.80 cfs 5.453 af Runoff Area=4.200 ac 0.00% Impervious Runoff Depth=6.96"Subcatchment 62S: NE Ramp (from SRF) Tc=8.0 min AMC Adjusted CN=98 Runoff=0.80 cfs 2.436 af Runoff Area=8.200 ac 0.00% Impervious Runoff Depth=6.96"Subcatchment 63S: TH 212 (from SRF) Tc=12.0 min AMC Adjusted CN=98 Runoff=1.56 cfs 4.757 af Runoff Area=7.800 ac 0.00% Impervious Runoff Depth=6.96"Subcatchment 64S: Englewood (from SRF) Tc=10.0 min AMC Adjusted CN=98 Runoff=1.49 cfs 4.524 af Runoff Area=6.400 ac 0.00% Impervious Runoff Depth=6.96"Subcatchment 65S: LYMLP (from SRF) Tc=15.0 min AMC Adjusted CN=98 Runoff=1.22 cfs 3.712 af Runoff Area=1.900 ac 0.00% Impervious Runoff Depth=6.96"Subcatchment 66S: N54 (from SRF) Tc=7.6 min AMC Adjusted CN=98 Runoff=0.36 cfs 1.102 af Runoff Area=0.440 ac 100.00% Impervious Runoff Depth=7.20"Subcatchment 67-1S: Fresh MDW Tc=7.0 min CN=100 Runoff=0.08 cfs 0.264 af Runoff Area=1.100 ac 0.00% Impervious Runoff Depth=6.96"Subcatchment 67-2S: Fresh MDW Subcatch Tc=7.0 min AMC Adjusted CN=98 Runoff=0.21 cfs 0.638 af Runoff Area=2.300 ac 0.00% Impervious Runoff Depth=6.96"Subcatchment 67-3S: Fresh MDW Subcatch Tc=83.0 min AMC Adjusted CN=98 Runoff=0.42 cfs 1.334 af Runoff Area=17.000 ac 0.00% Impervious Runoff Depth=6.96"Subcatchment 68S: M10 Tc=10.0 min AMC Adjusted CN=98 Runoff=3.25 cfs 9.861 af MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 109HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Inflow=7.19 cfs 23.769 afReach 10R: Lake Susan Drainage Outflow=7.19 cfs 23.769 af Avg. Flow Depth=0.51' Max Vel=1.81 fps Inflow=8.84 cfs 29.221 afReach 61R: NERDITCH n=0.035 L=545.0' S=0.0055 '/' Capacity=737.08 cfs Outflow=8.84 cfs 29.221 af Avg. Flow Depth=0.29' Max Vel=2.81 fps Inflow=0.80 cfs 2.436 afReach 62R: L42 24.0" Round Pipe n=0.012 L=200.0' S=0.0050 '/' Capacity=17.33 cfs Outflow=0.80 cfs 2.436 af Peak Elev=907.51' Storage=41,697 cf Inflow=6.61 cfs 20.201 afPond 1P: East Central Temp Basin Primary=6.10 cfs 20.190 af Secondary=0.00 cfs 0.000 af Outflow=6.10 cfs 20.190 af Peak Elev=904.20' Storage=2,467 cf Inflow=7.05 cfs 23.294 afPond 11.4P: East Pond Outflow=7.05 cfs 23.294 af Peak Elev=913.80' Storage=7,646 cf Inflow=1.10 cfs 3.352 afPond 13P: Live Storage Outflow=1.10 cfs 3.331 af Peak Elev=893.39' Storage=199,937 cf Inflow=12.56 cfs 40.939 afPond 61P: Englewood Pond Outflow=9.03 cfs 40.785 af Peak Elev=896.97' Storage=19,184 cf Inflow=2.28 cfs 7.051 afPond 65P: Fresh MDW Outflow=2.17 cfs 6.894 af Peak Elev=893.35' Storage=894,890 cf Inflow=13.79 cfs 57.540 afPond 68P: East MNDOT M10 Wetland Outflow=3.66 cfs 53.434 af Total Runoff Area = 105.552 ac Runoff Volume = 61.236 af Average Runoff Depth = 6.96" 94.78% Pervious = 100.040 ac 5.22% Impervious = 5.512 ac MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 110HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 1S: North East Runoff = 5.52 cfs @ 121.44 hrs, Volume= 16.870 af, Depth= 6.96" Routed to Pond 1P : East Central Temp Basin Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4 Area (sf) CN Adj Description * 1,229,785 80 >75% Grass cover, Good, HSG D * 37,075 100 Water 1,266,860 81 98 Weighted Average, AMC Adjusted 1,229,785 97.07% Pervious Area 37,075 2.93% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 5.2 100 0.1100 0.32 Sheet Flow, Grass: Short n= 0.150 P2= 2.87" 6.8 460 0.0260 1.13 Shallow Concentrated Flow, Short Grass Pasture Kv= 7.0 fps 11.9 498 0.0100 0.70 Shallow Concentrated Flow, Short Grass Pasture Kv= 7.0 fps 23.9 1,058 Total Subcatchment 1S: North East Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)6 5 4 3 2 1 0 MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20" AMC=4 Runoff Area=1,266,860 sf Runoff Volume=16.870 af Runoff Depth=6.96" Flow Length=1,058' Tc=23.9 min AMC Adjusted CN=98 5.52 cfs MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 111HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 11oS: Offsite East Runoff = 0.16 cfs @ 121.30 hrs, Volume= 0.475 af, Depth= 6.96" Routed to Reach 10R : Lake Susan Drainage Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4 Area (sf) CN Adj Description 35,675 80 >75% Grass cover, Good, HSG D 35,675 80 98 Weighted Average, AMC Adjusted 35,675 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 10.6 94 0.0430 0.15 Sheet Flow, Grass: Dense n= 0.240 P2= 2.87" Subcatchment 11oS: Offsite East Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.17 0.16 0.15 0.14 0.13 0.12 0.11 0.1 0.09 0.08 0.07 0.06 0.05 0.04 0.03 0.02 0.01 0 MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20" AMC=4 Runoff Area=35,675 sf Runoff Volume=0.475 af Runoff Depth=6.96" Flow Length=94' Slope=0.0430 '/' Tc=10.6 min AMC Adjusted CN=98 0.16 cfs MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 112HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 11S: East Runoff = 1.01 cfs @ 121.47 hrs, Volume= 3.104 af, Depth= 6.96" Routed to Pond 11.4P : East Pond Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4 Area (sf) CN Adj Description * 220,915 80 >75% Grass cover, Good, HSG D 12,200 98 Water Surface, HSG D 233,115 81 98 Weighted Average, AMC Adjusted 220,915 94.77% Pervious Area 12,200 5.23% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 9.9 178 0.0700 0.30 Sheet Flow, Grass: Short n= 0.150 P2= 2.87" 14.4 605 0.0100 0.70 Shallow Concentrated Flow, Short Grass Pasture Kv= 7.0 fps 24.3 783 Total Subcatchment 11S: East Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)1 0 MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20" AMC=4 Runoff Area=233,115 sf Runoff Volume=3.104 af Runoff Depth=6.96" Flow Length=783' Tc=24.3 min AMC Adjusted CN=98 1.01 cfs MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 113HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 12S: (new Subcat) [40] Hint: Not Described (Area=0) Runoff = 0.00 cfs @ 0.00 hrs, Volume= 0.000 af, Depth= 0.00" Routed to Pond 13P : Live Storage Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4 Subcatchment 12S: (new Subcat) Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)1 0 MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20" AMC=4 0.00 cfs MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 114HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 013S: Undeveloped Site of Rowhomes Runoff = 1.09 cfs @ 121.50 hrs, Volume= 3.352 af, Depth= 6.96" Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4 Area (sf) CN Adj Description 251,740 80 >75% Grass cover, Good, HSG D 251,740 80 98 Weighted Average, AMC Adjusted 251,740 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 30.0 Direct Entry, Subcatchment 013S: Undeveloped Site of Rowhomes Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)1 0 MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20" AMC=4 Runoff Area=251,740 sf Runoff Volume=3.352 af Runoff Depth=6.96" Tc=30.0 min AMC Adjusted CN=98 1.09 cfs MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 115HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 13S: Rowhomes Runoff = 1.10 cfs @ 121.26 hrs, Volume= 3.352 af, Depth= 6.96" Routed to Pond 13P : Live Storage Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4 Area (sf) CN Adj Description 93,825 98 Roofs, HSG D 77,845 98 Paved parking, HSG D 80,070 80 >75% Grass cover, Good, HSG D 251,740 92 98 Weighted Average, AMC Adjusted 80,070 31.81% Pervious Area 171,670 68.19% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 7.5 Direct Entry, Subcatchment 13S: Rowhomes Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)1 0 MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20" AMC=4 Runoff Area=251,740 sf Runoff Volume=3.352 af Runoff Depth=6.96" Tc=7.5 min AMC Adjusted CN=98 1.10 cfs MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 116HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 61S: Powers (from SRF) Runoff = 1.80 cfs @ 121.29 hrs, Volume= 5.453 af, Depth= 6.96" Routed to Reach 61R : NERDITCH Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4 Area (ac) CN Adj Description * 9.400 87 Weighted 9.400 87 98 Weighted Average, AMC Adjusted 9.400 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 9.0 Direct Entry, Subcatchment 61S: Powers (from SRF) Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)2 1 0 MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20" AMC=4 Runoff Area=9.400 ac Runoff Volume=5.453 af Runoff Depth=6.96" Tc=9.0 min AMC Adjusted CN=98 1.80 cfs MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 117HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 62S: NE Ramp (from SRF) Runoff = 0.80 cfs @ 121.27 hrs, Volume= 2.436 af, Depth= 6.96" Routed to Reach 62R : L42 Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4 Area (ac) CN Adj Description * 4.200 81 Weighted 4.200 81 98 Weighted Average, AMC Adjusted 4.200 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 8.0 Direct Entry, Subcatchment 62S: NE Ramp (from SRF) Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.85 0.8 0.75 0.7 0.65 0.6 0.55 0.5 0.45 0.4 0.35 0.3 0.25 0.2 0.15 0.1 0.05 0 MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20" AMC=4 Runoff Area=4.200 ac Runoff Volume=2.436 af Runoff Depth=6.96" Tc=8.0 min AMC Adjusted CN=98 0.80 cfs MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 118HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 63S: TH 212 (from SRF) Runoff = 1.56 cfs @ 121.32 hrs, Volume= 4.757 af, Depth= 6.96" Routed to Pond 61P : Englewood Pond Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4 Area (ac) CN Adj Description * 8.200 87 Weighted 8.200 87 98 Weighted Average, AMC Adjusted 8.200 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 12.0 Direct Entry, Subcatchment 63S: TH 212 (from SRF) Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)1 0 MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20" AMC=4 Runoff Area=8.200 ac Runoff Volume=4.757 af Runoff Depth=6.96" Tc=12.0 min AMC Adjusted CN=98 1.56 cfs MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 119HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 64S: Englewood (from SRF) Runoff = 1.49 cfs @ 121.30 hrs, Volume= 4.524 af, Depth= 6.96" Routed to Pond 61P : Englewood Pond Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4 Area (ac) CN Adj Description * 7.800 77 Weighted 7.800 77 98 Weighted Average, AMC Adjusted 7.800 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 10.0 Direct Entry, Subcatchment 64S: Englewood (from SRF) Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)1 0 MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20" AMC=4 Runoff Area=7.800 ac Runoff Volume=4.524 af Runoff Depth=6.96" Tc=10.0 min AMC Adjusted CN=98 1.49 cfs MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 120HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 65S: LYMLP (from SRF) Runoff = 1.22 cfs @ 121.35 hrs, Volume= 3.712 af, Depth= 6.96" Routed to Pond 65P : Fresh MDW Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4 Area (ac) CN Adj Description * 6.400 83 Weighted 6.400 83 98 Weighted Average, AMC Adjusted 6.400 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 15.0 Direct Entry, Subcatchment 65S: LYMLP (from SRF) Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)1 0 MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20" AMC=4 Runoff Area=6.400 ac Runoff Volume=3.712 af Runoff Depth=6.96" Tc=15.0 min AMC Adjusted CN=98 1.22 cfs MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 121HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 66S: N54 (from SRF) Runoff = 0.36 cfs @ 121.27 hrs, Volume= 1.102 af, Depth= 6.96" Routed to Pond 65P : Fresh MDW Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4 Area (ac) CN Adj Description * 1.900 94 Weighted 1.900 94 98 Weighted Average, AMC Adjusted 1.900 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 7.6 Direct Entry, Subcatchment 66S: N54 (from SRF) Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.4 0.38 0.36 0.34 0.32 0.3 0.28 0.26 0.24 0.22 0.2 0.18 0.16 0.14 0.12 0.1 0.08 0.06 0.04 0.02 0 MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20" AMC=4 Runoff Area=1.900 ac Runoff Volume=1.102 af Runoff Depth=6.96" Tc=7.6 min AMC Adjusted CN=98 0.36 cfs MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 122HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 67-1S: Fresh MDW Subcatch 1 (from SRF) Runoff = 0.08 cfs @ 121.26 hrs, Volume= 0.264 af, Depth= 7.20" Routed to Pond 65P : Fresh MDW Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4 Area (ac) CN Description * 0.440 100 Weighted 0.440 100.00% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 7.0 Direct Entry, Subcatchment 67-1S: Fresh MDW Subcatch 1 (from SRF) Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.09 0.085 0.08 0.075 0.07 0.065 0.06 0.055 0.05 0.045 0.04 0.035 0.03 0.025 0.02 0.015 0.01 0.005 0 MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20" AMC=4 Runoff Area=0.440 ac Runoff Volume=0.264 af Runoff Depth=7.20" Tc=7.0 min CN=100 0.08 cfs MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 123HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 67-2S: Fresh MDW Subcatch 2 (from SRF) Runoff = 0.21 cfs @ 121.26 hrs, Volume= 0.638 af, Depth= 6.96" Routed to Pond 65P : Fresh MDW Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4 Area (ac) CN Adj Description * 1.100 71 Weighted 1.100 71 98 Weighted Average, AMC Adjusted 1.100 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 7.0 Direct Entry, Subcatchment 67-2S: Fresh MDW Subcatch 2 (from SRF) Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.23 0.22 0.21 0.2 0.19 0.18 0.17 0.16 0.15 0.14 0.13 0.12 0.11 0.1 0.09 0.08 0.07 0.06 0.05 0.04 0.03 0.02 0.01 0 MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20" AMC=4 Runoff Area=1.100 ac Runoff Volume=0.638 af Runoff Depth=6.96" Tc=7.0 min AMC Adjusted CN=98 0.21 cfs MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 124HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 67-3S: Fresh MDW Subcatch 3 (from SRF) Runoff = 0.42 cfs @ 122.19 hrs, Volume= 1.334 af, Depth= 6.96" Routed to Pond 65P : Fresh MDW Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4 Area (ac) CN Adj Description * 2.300 10 Weighted 2.300 10 98 Weighted Average, AMC Adjusted 2.300 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 83.0 Direct Entry, Subcatchment 67-3S: Fresh MDW Subcatch 3 (from SRF) Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.46 0.44 0.42 0.4 0.38 0.36 0.34 0.32 0.3 0.28 0.26 0.24 0.22 0.2 0.18 0.16 0.14 0.12 0.1 0.08 0.06 0.04 0.02 0 MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20" AMC=4 Runoff Area=2.300 ac Runoff Volume=1.334 af Runoff Depth=6.96" Tc=83.0 min AMC Adjusted CN=98 0.42 cfs MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 125HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 68S: M10 Runoff = 3.25 cfs @ 121.30 hrs, Volume= 9.861 af, Depth= 6.96" Routed to Pond 68P : East MNDOT M10 Wetland Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4 Area (ac) CN Adj Description * 17.000 74 Weighted 17.000 74 98 Weighted Average, AMC Adjusted 17.000 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 10.0 Direct Entry, Subcatchment 68S: M10 Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)3 2 1 0 MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20" AMC=4 Runoff Area=17.000 ac Runoff Volume=9.861 af Runoff Depth=6.96" Tc=10.0 min AMC Adjusted CN=98 3.25 cfs MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 126HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Reach 10R: Lake Susan Drainage [40] Hint: Not Described (Outflow=Inflow) Inflow Area = 41.033 ac, 12.36% Impervious, Inflow Depth > 6.95" for 10 day snowmelt event Inflow = 7.19 cfs @ 121.98 hrs, Volume= 23.769 af Outflow = 7.19 cfs @ 121.98 hrs, Volume= 23.769 af, Atten= 0%, Lag= 0.0 min Routed to Reach 61R : NERDITCH Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Reach 10R: Lake Susan Drainage Inflow Outflow Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)8 7 6 5 4 3 2 1 0 Inflow Area=41.033 ac 7.19 cfs 7.19 cfs MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 127HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Reach 61R: NERDITCH Inflow Area = 50.433 ac, 10.06% Impervious, Inflow Depth > 6.95" for 10 day snowmelt event Inflow = 8.84 cfs @ 121.75 hrs, Volume= 29.221 af Outflow = 8.84 cfs @ 121.80 hrs, Volume= 29.221 af, Atten= 0%, Lag= 3.1 min Routed to Pond 61P : Englewood Pond Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Max. Velocity= 1.81 fps, Min. Travel Time= 5.0 min Avg. Velocity = 0.75 fps, Avg. Travel Time= 12.1 min Peak Storage= 2,662 cf @ 121.80 hrs Average Depth at Peak Storage= 0.51' , Surface Width= 11.07' Bank-Full Depth= 5.00' Flow Area= 115.0 sf, Capacity= 737.08 cfs 8.00' x 5.00' deep channel, n= 0.035 Side Slope Z-value= 3.0 '/' Top Width= 38.00' Length= 545.0' Slope= 0.0055 '/' Inlet Invert= 895.00', Outlet Invert= 892.00' ‡ Reach 61R: NERDITCH Inflow Outflow Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)9 8 7 6 5 4 3 2 1 0 Inflow Area=50.433 ac Avg. Flow Depth=0.51' Max Vel=1.81 fps n=0.035 L=545.0' S=0.0055 '/' Capacity=737.08 cfs 8.84 cfs 8.84 cfs MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 128HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Reach 62R: L42 [52] Hint: Inlet/Outlet conditions not evaluated Inflow Area = 4.200 ac, 0.00% Impervious, Inflow Depth = 6.96" for 10 day snowmelt event Inflow = 0.80 cfs @ 121.27 hrs, Volume= 2.436 af Outflow = 0.80 cfs @ 121.29 hrs, Volume= 2.436 af, Atten= 0%, Lag= 1.1 min Routed to Pond 61P : Englewood Pond Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Max. Velocity= 2.81 fps, Min. Travel Time= 1.2 min Avg. Velocity = 1.53 fps, Avg. Travel Time= 2.2 min Peak Storage= 57 cf @ 121.29 hrs Average Depth at Peak Storage= 0.29' , Surface Width= 1.41' Bank-Full Depth= 2.00' Flow Area= 3.1 sf, Capacity= 17.33 cfs 24.0" Round Pipe n= 0.012 Length= 200.0' Slope= 0.0050 '/' Inlet Invert= 893.00', Outlet Invert= 892.00' MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 129HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Reach 62R: L42 Inflow Outflow Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.85 0.8 0.75 0.7 0.65 0.6 0.55 0.5 0.45 0.4 0.35 0.3 0.25 0.2 0.15 0.1 0.05 0 Inflow Area=4.200 ac Avg. Flow Depth=0.29' Max Vel=2.81 fps 24.0" Round Pipe n=0.012 L=200.0' S=0.0050 '/' Capacity=17.33 cfs 0.80 cfs 0.80 cfs MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 130HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Pond 1P: East Central Temp Basin Inflow Area = 34.862 ac, 13.75% Impervious, Inflow Depth = 6.95" for 10 day snowmelt event Inflow = 6.61 cfs @ 121.44 hrs, Volume= 20.201 af Outflow = 6.10 cfs @ 122.09 hrs, Volume= 20.190 af, Atten= 8%, Lag= 39.4 min Primary = 6.10 cfs @ 122.09 hrs, Volume= 20.190 af Routed to Pond 11.4P : East Pond Secondary = 0.00 cfs @ 0.00 hrs, Volume= 0.000 af Routed to Pond 11.4P : East Pond Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 907.51' @ 122.09 hrs Surf.Area= 40,344 sf Storage= 41,697 cf Plug-Flow detention time= 244.0 min calculated for 20.190 af (100% of inflow) Center-of-Mass det. time= 239.9 min ( 7,659.6 - 7,419.7 ) Volume Invert Avail.Storage Storage Description #1 906.43' 364,823 cf Basin 2 (Prismatic) Listed below (Recalc) Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 906.43 37,075 0 0 908.00 41,840 61,948 61,948 909.00 48,360 45,100 107,048 910.00 66,876 57,618 164,666 911.50 200,000 200,157 364,823 Device Routing Invert Outlet Devices #1 Secondary 910.20'25.0' long x 80.0' breadth EOF Head (feet) 0.20 0.40 0.60 0.80 1.00 1.20 1.40 1.60 Coef. (English) 2.68 2.70 2.70 2.64 2.63 2.64 2.64 2.63 #2 Primary 906.43'24.0" Round Culvert L= 199.0' RCP, sq.cut end projecting, Ke= 0.500 Inlet / Outlet Invert= 906.43' / 904.00' S= 0.0122 '/' Cc= 0.900 n= 0.011 Concrete pipe, straight & clean, Flow Area= 3.14 sf Primary OutFlow Max=6.10 cfs @ 122.09 hrs HW=907.51' TW=904.20' (Dynamic Tailwater) 2=Culvert (Inlet Controls 6.10 cfs @ 3.53 fps) Secondary OutFlow Max=0.00 cfs @ 0.00 hrs HW=906.43' TW=904.00' (Dynamic Tailwater) 1=EOF ( Controls 0.00 cfs) MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 131HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Pond 1P: East Central Temp Basin Inflow Outflow Primary Secondary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)7 6 5 4 3 2 1 0 Inflow Area=34.862 ac Peak Elev=907.51' Storage=41,697 cf 6.61 cfs 6.10 cfs 6.10 cfs 0.00 cfs MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 132HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Pond 11.4P: East Pond Inflow Area = 40.214 ac, 12.61% Impervious, Inflow Depth > 6.95" for 10 day snowmelt event Inflow = 7.05 cfs @ 121.96 hrs, Volume= 23.294 af Outflow = 7.05 cfs @ 122.01 hrs, Volume= 23.294 af, Atten= 0%, Lag= 3.0 min Primary = 7.05 cfs @ 122.01 hrs, Volume= 23.294 af Routed to Reach 10R : Lake Susan Drainage Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 904.20' @ 122.01 hrs Surf.Area= 12,678 sf Storage= 2,467 cf Plug-Flow detention time= 10.5 min calculated for 23.294 af (100% of inflow) Center-of-Mass det. time= 10.4 min ( 7,635.2 - 7,624.8 ) Volume Invert Avail.Storage Storage Description #1 904.00' 68,298 cf Custom Stage Data (Prismatic) Listed below (Recalc) Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 904.00 12,200 0 0 906.00 17,015 29,215 29,215 908.00 22,068 39,083 68,298 Device Routing Invert Outlet Devices #1 Primary 895.97'54.0" Round Culvert L= 232.0' RCP, square edge headwall, Ke= 0.500 Inlet / Outlet Invert= 895.97' / 894.53' S= 0.0062 '/' Cc= 0.900 n= 0.011 Concrete pipe, straight & clean, Flow Area= 15.90 sf #2 Device 1 904.00'84.0" Horiz. Orifice/Grate C= 0.600 Limited to weir flow at low heads #3 Primary 904.00'Custom Weir/Orifice, Cv= 2.62 (C= 3.28) Head (feet) 0.00 0.25 0.50 0.75 1.00 Width (feet) 0.10 7.33 11.00 14.67 22.00 Primary OutFlow Max=7.05 cfs @ 122.01 hrs HW=904.20' TW=0.00' (Dynamic Tailwater) 1=Culvert (Passes 6.35 cfs of 187.24 cfs potential flow) 2=Orifice/Grate (Weir Controls 6.35 cfs @ 1.46 fps) 3=Custom Weir/Orifice (Weir Controls 0.69 cfs @ 1.18 fps) MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 133HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Pond 11.4P: East Pond Inflow Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)7 6 5 4 3 2 1 0 Inflow Area=40.214 ac Peak Elev=904.20' Storage=2,467 cf 7.05 cfs 7.05 cfs MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 134HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Pond 13P: Live Storage Inflow Area = 5.779 ac, 68.19% Impervious, Inflow Depth = 6.96" for 10 day snowmelt event Inflow = 1.10 cfs @ 121.26 hrs, Volume= 3.352 af Outflow = 1.10 cfs @ 121.34 hrs, Volume= 3.331 af, Atten= 1%, Lag= 4.9 min Primary = 1.10 cfs @ 121.34 hrs, Volume= 3.331 af Routed to Pond 1P : East Central Temp Basin Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 913.80' @ 121.34 hrs Surf.Area= 4,554 sf Storage= 7,646 cf Plug-Flow detention time= 187.3 min calculated for 3.331 af (99% of inflow) Center-of-Mass det. time= 143.8 min ( 7,527.0 - 7,383.3 ) Volume Invert Avail.Storage Storage Description #1A 911.20' 6,060 cf 22.00'W x 207.00'L x 6.00'H Field A 27,324 cf Overall - 12,174 cf Embedded = 15,150 cf x 40.0% Voids #2A 911.70' 12,174 cf CMP Round 60 x 30 Inside #1 Effective Size= 60.0"W x 60.0"H => 19.63 sf x 20.00'L = 392.7 cf Overall Size= 60.0"W x 60.0"H x 20.00'L 30 Chambers in 3 Rows 20.00' Header x 19.63 sf x 1 = 392.7 cf Inside #3 916.70' 6,362 cf 30.00'D x 3.00'H Vertical Cone/Cylinder x 3 24,596 cf Total Available Storage Storage Group A created with Chamber Wizard Device Routing Invert Outlet Devices #1 Primary 911.70'21.0" Round Culvert L= 26.0' RCP, square edge headwall, Ke= 0.500 Inlet / Outlet Invert= 911.70' / 911.62' S= 0.0031 '/' Cc= 0.900 n= 0.013 Concrete pipe, straight & clean, Flow Area= 2.41 sf #2 Device 1 911.70'4.0" Vert. Orifice/Grate C= 0.600 Limited to weir flow at low heads #3 Device 1 913.70'5.0' long Sharp-Crested Rectangular Weir 2 End Contraction(s) 2.0' Crest Height Primary OutFlow Max=1.10 cfs @ 121.34 hrs HW=913.80' TW=907.48' (Dynamic Tailwater) 1=Culvert (Passes 1.10 cfs of 10.59 cfs potential flow) 2=Orifice/Grate (Orifice Controls 0.58 cfs @ 6.69 fps) 3=Sharp-Crested Rectangular Weir (Weir Controls 0.51 cfs @ 1.04 fps) MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 135HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Pond 13P: Live Storage - Chamber Wizard Field A Chamber Model = CMP Round 60 (Round Corrugated Metal Pipe) Effective Size= 60.0"W x 60.0"H => 19.63 sf x 20.00'L = 392.7 cf Overall Size= 60.0"W x 60.0"H x 20.00'L 60.0" Wide + 30.0" Spacing = 90.0" C-C Row Spacing 10 Chambers/Row x 20.00' Long +5.00' Header x 1 = 205.00' Row Length +12.0" End Stone x 2 = 207.00' Base Length 3 Rows x 60.0" Wide + 30.0" Spacing x 2 + 12.0" Side Stone x 2 = 22.00' Base Width 6.0" Stone Base + 60.0" Chamber Height + 6.0" Stone Cover = 6.00' Field Height 30 Chambers x 392.7 cf + 20.00' Header x 19.63 sf = 12,173.7 cf Chamber Storage 27,324.0 cf Field - 12,173.7 cf Chambers = 15,150.3 cf Stone x 40.0% Voids = 6,060.1 cf Stone Storage Chamber Storage + Stone Storage = 18,233.8 cf = 0.419 af Overall Storage Efficiency = 66.7% Overall System Size = 207.00' x 22.00' x 6.00' 30 Chambers 1,012.0 cy Field 561.1 cy Stone MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 136HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Pond 13P: Live Storage Inflow Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)1 0 Inflow Area=5.779 ac Peak Elev=913.80' Storage=7,646 cf 1.10 cfs 1.10 cfs MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 137HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Pond 61P: Englewood Pond [44] Hint: Outlet device #2 is below defined storage [87] Warning: Oscillations may require smaller dt or Finer Routing (severity=13) [62] Hint: Exceeded Reach 61R OUTLET depth by 1.18' @ 144.69 hrs [63] Warning: Exceeded Reach 62R INLET depth by 0.26' @ 141.88 hrs Inflow Area = 70.633 ac, 7.18% Impervious, Inflow Depth = 6.96" for 10 day snowmelt event Inflow = 12.56 cfs @ 121.43 hrs, Volume= 40.939 af Outflow = 9.03 cfs @ 122.95 hrs, Volume= 40.785 af, Atten= 28%, Lag= 91.3 min Primary = 9.03 cfs @ 122.95 hrs, Volume= 40.785 af Routed to Pond 68P : East MNDOT M10 Wetland Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 893.39' @ 139.49 hrs Surf.Area= 151,163 sf Storage= 199,937 cf Plug-Flow detention time= 945.1 min calculated for 40.784 af (100% of inflow) Center-of-Mass det. time= 914.9 min ( 8,449.1 - 7,534.1 ) Volume Invert Avail.Storage Storage Description #1 892.00' 1,031,055 cf Custom Stage Data (Prismatic) Listed below (Recalc) Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 892.00 136,580 0 0 895.00 168,060 456,960 456,960 898.00 214,670 574,095 1,031,055 Device Routing Invert Outlet Devices #1 Primary 892.00'42.0" Round Culvert L= 29.0' RCP, square edge headwall, Ke= 0.500 Inlet / Outlet Invert= 892.00' / 891.71' S= 0.0100 '/' Cc= 0.900 n= 0.013 Concrete pipe, straight & clean, Flow Area= 9.62 sf #2 Device 1 887.63'42.0" Round Culvert L= 13.0' RCP, end-section conforming to fill, Ke= 0.500 Inlet / Outlet Invert= 887.50' / 887.63' S= -0.0100 '/' Cc= 0.900 n= 0.013 Concrete pipe, straight & clean, Flow Area= 9.62 sf Primary OutFlow Max=9.02 cfs @ 122.95 hrs HW=893.31' TW=892.85' (Dynamic Tailwater) 1=Culvert (Outlet Controls 9.02 cfs @ 4.07 fps) 2=Culvert (Passes 9.02 cfs of 31.57 cfs potential flow) MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 138HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Pond 61P: Englewood Pond Inflow Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 Inflow Area=70.633 ac Peak Elev=893.39' Storage=199,937 cf 12.56 cfs 9.03 cfs MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 139HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Pond 65P: Fresh MDW Inflow Area = 12.140 ac, 3.62% Impervious, Inflow Depth = 6.97" for 10 day snowmelt event Inflow = 2.28 cfs @ 121.32 hrs, Volume= 7.051 af Outflow = 2.17 cfs @ 121.85 hrs, Volume= 6.894 af, Atten= 5%, Lag= 32.2 min Primary = 2.17 cfs @ 121.85 hrs, Volume= 6.894 af Routed to Pond 68P : East MNDOT M10 Wetland Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 896.97' @ 121.85 hrs Surf.Area= 20,897 sf Storage= 19,184 cf Plug-Flow detention time= 510.3 min calculated for 6.894 af (98% of inflow) Center-of-Mass det. time= 357.9 min ( 7,750.8 - 7,392.9 ) Volume Invert Avail.Storage Storage Description #1 896.00' 123,320 cf Custom Stage Data (Prismatic) Listed below (Recalc) Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 896.00 18,540 0 0 900.00 28,230 93,540 93,540 901.00 31,330 29,780 123,320 Device Routing Invert Outlet Devices #1 Primary 892.35'12.0" Round Culvert L= 35.0' RCP, square edge headwall, Ke= 0.500 Inlet / Outlet Invert= 892.00' / 892.35' S= -0.0100 '/' Cc= 0.900 n= 0.012, Flow Area= 0.79 sf #2 Device 1 896.35'33.0" Round Culvert L= 69.0' RCP, end-section conforming to fill, Ke= 0.500 Inlet / Outlet Invert= 896.35' / 896.01' S= 0.0049 '/' Cc= 0.900 n= 0.012 Concrete pipe, finished, Flow Area= 5.94 sf Primary OutFlow Max=2.17 cfs @ 121.85 hrs HW=896.97' TW=892.73' (Dynamic Tailwater) 1=Culvert (Passes 2.17 cfs of 7.68 cfs potential flow) 2=Culvert (Barrel Controls 2.17 cfs @ 3.24 fps) MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 140HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Pond 65P: Fresh MDW Inflow Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)2 1 0 Inflow Area=12.140 ac Peak Elev=896.97' Storage=19,184 cf 2.28 cfs 2.17 cfs MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 141HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Pond 68P: East MNDOT M10 Wetland Inflow Area = 99.773 ac, 5.52% Impervious, Inflow Depth > 6.92" for 10 day snowmelt event Inflow = 13.79 cfs @ 122.19 hrs, Volume= 57.540 af Outflow = 3.66 cfs @ 141.56 hrs, Volume= 53.434 af, Atten= 73%, Lag= 1,162.5 min Primary = 3.66 cfs @ 141.56 hrs, Volume= 53.434 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 893.35' @ 141.56 hrs Surf.Area= 385,545 sf Storage= 894,890 cf Plug-Flow detention time= 3,524.4 min calculated for 53.434 af (93% of inflow) Center-of-Mass det. time= 3,001.5 min ( 11,184.7 - 8,183.1 ) Volume Invert Avail.Storage Storage Description #1 890.00' 1,574,445 cf Custom Stage Data (Prismatic) Listed below (Recalc) Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 890.00 68,660 0 0 891.00 198,790 133,725 133,725 892.00 340,250 269,520 403,245 895.00 440,550 1,171,200 1,574,445 Device Routing Invert Outlet Devices #1 Primary 890.30'18.0" Round Culvert L= 155.0' RCP, square edge headwall, Ke= 0.500 Inlet / Outlet Invert= 890.30' / 889.53' S= 0.0050 '/' Cc= 0.900 n= 0.013 Concrete pipe, straight & clean, Flow Area= 1.77 sf #2 Device 1 891.00'10.0" Vert. Orifice/Grate C= 0.600 Limited to weir flow at low heads #3 Device 2 890.50'18.0" Round Culvert L= 40.0' RCP, end-section conforming to fill, Ke= 0.500 Inlet / Outlet Invert= 890.30' / 890.50' S= -0.0050 '/' Cc= 0.900 n= 0.013 Concrete pipe, straight & clean, Flow Area= 1.77 sf Primary OutFlow Max=3.66 cfs @ 141.56 hrs HW=893.35' (Free Discharge) 1=Culvert (Passes 3.66 cfs of 10.39 cfs potential flow) 2=Orifice/Grate (Orifice Controls 3.66 cfs @ 6.70 fps) 3=Culvert (Passes 3.66 cfs of 11.84 cfs potential flow) MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 142HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Pond 68P: East MNDOT M10 Wetland Inflow Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 Inflow Area=99.773 ac Peak Elev=893.35' Storage=894,890 cf 13.79 cfs 3.66 cfs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 143HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Time span=0.00-360.00 hrs, dt=0.01 hrs, 36001 points Runoff by SCS TR-20 method, UH=SCS, Weighted-CN Reach routing by Dyn-Stor-Ind method - Pond routing by Dyn-Stor-Ind method Runoff Area=1,266,860 sf 2.93% Impervious Runoff Depth=2.35"Subcatchment 1S: North East Flow Length=1,058' Tc=23.9 min CN=81 Runoff=66.75 cfs 5.696 af Runoff Area=35,675 sf 0.00% Impervious Runoff Depth=2.27"Subcatchment 11oS: Offsite East Flow Length=94' Slope=0.0430 '/' Tc=10.6 min CN=80 Runoff=2.71 cfs 0.155 af Runoff Area=233,115 sf 5.23% Impervious Runoff Depth=2.35"Subcatchment 11S: East Flow Length=783' Tc=24.3 min CN=81 Runoff=12.20 cfs 1.048 af Subcatchment 12S: (new Subcat) Runoff=0.00 cfs 0.000 af Runoff Area=251,740 sf 0.00% Impervious Runoff Depth=2.27"Subcatchment 013S: Undeveloped Site of Tc=30.0 min CN=80 Runoff=11.30 cfs 1.092 af Runoff Area=251,740 sf 68.19% Impervious Runoff Depth=3.38"Subcatchment 13S: Rowhomes Tc=7.5 min CN=92 Runoff=31.69 cfs 1.627 af Runoff Area=9.400 ac 0.00% Impervious Runoff Depth=2.89"Subcatchment 61S: Powers (from SRF) Tc=9.0 min CN=87 Runoff=42.32 cfs 2.260 af Runoff Area=4.200 ac 0.00% Impervious Runoff Depth=2.35"Subcatchment 62S: NE Ramp (from SRF) Tc=8.0 min CN=81 Runoff=16.23 cfs 0.823 af Runoff Area=8.200 ac 0.00% Impervious Runoff Depth=2.89"Subcatchment 63S: TH 212 (from SRF) Tc=12.0 min CN=87 Runoff=32.44 cfs 1.972 af Runoff Area=7.800 ac 0.00% Impervious Runoff Depth=2.03"Subcatchment 64S: Englewood (from SRF) Tc=10.0 min CN=77 Runoff=23.60 cfs 1.316 af Runoff Area=6.400 ac 0.00% Impervious Runoff Depth=2.52"Subcatchment 65S: LYMLP (from SRF) Tc=15.0 min CN=83 Runoff=19.99 cfs 1.345 af Runoff Area=1.900 ac 0.00% Impervious Runoff Depth=3.59"Subcatchment 66S: N54 (from SRF) Tc=7.6 min CN=94 Runoff=10.86 cfs 0.568 af Runoff Area=0.440 ac 100.00% Impervious Runoff Depth=4.27"Subcatchment 67-1S: Fresh MDW Tc=7.0 min CN=100 Runoff=2.75 cfs 0.157 af Runoff Area=1.100 ac 0.00% Impervious Runoff Depth=1.58"Subcatchment 67-2S: Fresh MDW Subcatch Tc=7.0 min CN=71 Runoff=2.91 cfs 0.145 af Runoff Area=2.300 ac 0.00% Impervious Runoff Depth=0.00"Subcatchment 67-3S: Fresh MDW Subcatch Tc=83.0 min CN=10 Runoff=0.00 cfs 0.000 af Runoff Area=17.000 ac 0.00% Impervious Runoff Depth=1.80"Subcatchment 68S: M10 Tc=10.0 min CN=74 Runoff=45.10 cfs 2.546 af MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 144HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Inflow=30.95 cfs 8.501 afReach 10R: Lake Susan Drainage Outflow=30.95 cfs 8.501 af Avg. Flow Depth=1.35' Max Vel=3.12 fps Inflow=53.91 cfs 10.761 afReach 61R: NERDITCH n=0.035 L=545.0' S=0.0055 '/' Capacity=737.08 cfs Outflow=50.88 cfs 10.761 af Avg. Flow Depth=1.53' Max Vel=6.27 fps Inflow=16.23 cfs 0.823 afReach 62R: L42 24.0" Round Pipe n=0.012 L=200.0' S=0.0050 '/' Capacity=17.33 cfs Outflow=16.13 cfs 0.823 af Peak Elev=909.64' Storage=142,050 cf Inflow=85.07 cfs 7.303 afPond 1P: East Central Temp Basin Primary=22.51 cfs 7.298 af Secondary=0.00 cfs 0.000 af Outflow=22.51 cfs 7.298 af Peak Elev=904.49' Storage=6,207 cf Inflow=30.37 cfs 8.346 afPond 11.4P: East Pond Outflow=30.16 cfs 8.346 af Peak Elev=915.85' Storage=14,950 cf Inflow=31.69 cfs 1.627 afPond 13P: Live Storage Outflow=20.96 cfs 1.606 af Peak Elev=893.99' Storage=292,973 cf Inflow=120.59 cfs 14.872 afPond 61P: Englewood Pond Outflow=21.43 cfs 14.813 af Peak Elev=898.12' Storage=44,673 cf Inflow=31.73 cfs 2.215 afPond 65P: Fresh MDW Outflow=8.68 cfs 2.061 af Peak Elev=892.62' Storage=619,068 cf Inflow=53.61 cfs 19.420 afPond 68P: East MNDOT M10 Wetland Outflow=2.88 cfs 16.076 af Total Runoff Area = 105.552 ac Runoff Volume = 20.750 af Average Runoff Depth = 2.36" 94.78% Pervious = 100.040 ac 5.22% Impervious = 5.512 ac MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 145HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 1S: North East Runoff = 66.75 cfs @ 12.33 hrs, Volume= 5.696 af, Depth= 2.35" Routed to Pond 1P : East Central Temp Basin Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Area (sf) CN Description * 1,229,785 80 >75% Grass cover, Good, HSG D * 37,075 100 Water 1,266,860 81 Weighted Average 1,229,785 97.07% Pervious Area 37,075 2.93% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 5.2 100 0.1100 0.32 Sheet Flow, Grass: Short n= 0.150 P2= 2.87" 6.8 460 0.0260 1.13 Shallow Concentrated Flow, Short Grass Pasture Kv= 7.0 fps 11.9 498 0.0100 0.70 Shallow Concentrated Flow, Short Grass Pasture Kv= 7.0 fps 23.9 1,058 Total Subcatchment 1S: North East Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)70 65 60 55 50 45 40 35 30 25 20 15 10 5 0 MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Runoff Area=1,266,860 sf Runoff Volume=5.696 af Runoff Depth=2.35" Flow Length=1,058' Tc=23.9 min CN=81 66.75 cfs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 146HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 11oS: Offsite East Runoff = 2.71 cfs @ 12.15 hrs, Volume= 0.155 af, Depth= 2.27" Routed to Reach 10R : Lake Susan Drainage Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Area (sf) CN Description 35,675 80 >75% Grass cover, Good, HSG D 35,675 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 10.6 94 0.0430 0.15 Sheet Flow, Grass: Dense n= 0.240 P2= 2.87" Subcatchment 11oS: Offsite East Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)3 2 1 0 MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Runoff Area=35,675 sf Runoff Volume=0.155 af Runoff Depth=2.27" Flow Length=94' Slope=0.0430 '/' Tc=10.6 min CN=80 2.71 cfs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 147HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 11S: East Runoff = 12.20 cfs @ 12.34 hrs, Volume= 1.048 af, Depth= 2.35" Routed to Pond 11.4P : East Pond Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Area (sf) CN Description * 220,915 80 >75% Grass cover, Good, HSG D 12,200 98 Water Surface, HSG D 233,115 81 Weighted Average 220,915 94.77% Pervious Area 12,200 5.23% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 9.9 178 0.0700 0.30 Sheet Flow, Grass: Short n= 0.150 P2= 2.87" 14.4 605 0.0100 0.70 Shallow Concentrated Flow, Short Grass Pasture Kv= 7.0 fps 24.3 783 Total Subcatchment 11S: East Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)13 12 11 10 9 8 7 6 5 4 3 2 1 0 MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Runoff Area=233,115 sf Runoff Volume=1.048 af Runoff Depth=2.35" Flow Length=783' Tc=24.3 min CN=81 12.20 cfs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 148HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 12S: (new Subcat) [40] Hint: Not Described (Area=0) Runoff = 0.00 cfs @ 0.00 hrs, Volume= 0.000 af, Depth= 0.00" Routed to Pond 13P : Live Storage Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Subcatchment 12S: (new Subcat) Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)1 0 MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" 0.00 cfs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 149HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 013S: Undeveloped Site of Rowhomes Runoff = 11.30 cfs @ 12.43 hrs, Volume= 1.092 af, Depth= 2.27" Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Area (sf) CN Description 251,740 80 >75% Grass cover, Good, HSG D 251,740 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 30.0 Direct Entry, Subcatchment 013S: Undeveloped Site of Rowhomes Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)12 11 10 9 8 7 6 5 4 3 2 1 0 MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Runoff Area=251,740 sf Runoff Volume=1.092 af Runoff Depth=2.27" Tc=30.0 min CN=80 11.30 cfs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 150HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 13S: Rowhomes Runoff = 31.69 cfs @ 12.10 hrs, Volume= 1.627 af, Depth= 3.38" Routed to Pond 13P : Live Storage Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Area (sf) CN Description 93,825 98 Roofs, HSG D 77,845 98 Paved parking, HSG D 80,070 80 >75% Grass cover, Good, HSG D 251,740 92 Weighted Average 80,070 31.81% Pervious Area 171,670 68.19% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 7.5 Direct Entry, Subcatchment 13S: Rowhomes Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)34 32 30 28 26 24 22 20 18 16 14 12 10 8 6 4 2 0 MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Runoff Area=251,740 sf Runoff Volume=1.627 af Runoff Depth=3.38" Tc=7.5 min CN=92 31.69 cfs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 151HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 61S: Powers (from SRF) Runoff = 42.32 cfs @ 12.12 hrs, Volume= 2.260 af, Depth= 2.89" Routed to Reach 61R : NERDITCH Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Area (ac) CN Description * 9.400 87 Weighted 9.400 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 9.0 Direct Entry, Subcatchment 61S: Powers (from SRF) Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)46 44 42 40 38 36 34 32 30 28 26 24 22 20 18 16 14 12 10 8 6 4 2 0 MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Runoff Area=9.400 ac Runoff Volume=2.260 af Runoff Depth=2.89" Tc=9.0 min CN=87 42.32 cfs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 152HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 62S: NE Ramp (from SRF) Runoff = 16.23 cfs @ 12.11 hrs, Volume= 0.823 af, Depth= 2.35" Routed to Reach 62R : L42 Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Area (ac) CN Description * 4.200 81 Weighted 4.200 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 8.0 Direct Entry, Subcatchment 62S: NE Ramp (from SRF) Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Runoff Area=4.200 ac Runoff Volume=0.823 af Runoff Depth=2.35" Tc=8.0 min CN=81 16.23 cfs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 153HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 63S: TH 212 (from SRF) Runoff = 32.44 cfs @ 12.16 hrs, Volume= 1.972 af, Depth= 2.89" Routed to Pond 61P : Englewood Pond Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Area (ac) CN Description * 8.200 87 Weighted 8.200 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 12.0 Direct Entry, Subcatchment 63S: TH 212 (from SRF) Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)36 34 32 30 28 26 24 22 20 18 16 14 12 10 8 6 4 2 0 MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Runoff Area=8.200 ac Runoff Volume=1.972 af Runoff Depth=2.89" Tc=12.0 min CN=87 32.44 cfs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 154HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 64S: Englewood (from SRF) Runoff = 23.60 cfs @ 12.14 hrs, Volume= 1.316 af, Depth= 2.03" Routed to Pond 61P : Englewood Pond Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Area (ac) CN Description * 7.800 77 Weighted 7.800 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 10.0 Direct Entry, Subcatchment 64S: Englewood (from SRF) Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Runoff Area=7.800 ac Runoff Volume=1.316 af Runoff Depth=2.03" Tc=10.0 min CN=77 23.60 cfs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 155HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 65S: LYMLP (from SRF) Runoff = 19.99 cfs @ 12.20 hrs, Volume= 1.345 af, Depth= 2.52" Routed to Pond 65P : Fresh MDW Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Area (ac) CN Description * 6.400 83 Weighted 6.400 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 15.0 Direct Entry, Subcatchment 65S: LYMLP (from SRF) Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Runoff Area=6.400 ac Runoff Volume=1.345 af Runoff Depth=2.52" Tc=15.0 min CN=83 19.99 cfs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 156HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 66S: N54 (from SRF) Runoff = 10.86 cfs @ 12.10 hrs, Volume= 0.568 af, Depth= 3.59" Routed to Pond 65P : Fresh MDW Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Area (ac) CN Description * 1.900 94 Weighted 1.900 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 7.6 Direct Entry, Subcatchment 66S: N54 (from SRF) Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)12 11 10 9 8 7 6 5 4 3 2 1 0 MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Runoff Area=1.900 ac Runoff Volume=0.568 af Runoff Depth=3.59" Tc=7.6 min CN=94 10.86 cfs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 157HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 67-1S: Fresh MDW Subcatch 1 (from SRF) Runoff = 2.75 cfs @ 12.09 hrs, Volume= 0.157 af, Depth= 4.27" Routed to Pond 65P : Fresh MDW Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Area (ac) CN Description * 0.440 100 Weighted 0.440 100.00% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 7.0 Direct Entry, Subcatchment 67-1S: Fresh MDW Subcatch 1 (from SRF) Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)3 2 1 0 MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Runoff Area=0.440 ac Runoff Volume=0.157 af Runoff Depth=4.27" Tc=7.0 min CN=100 2.75 cfs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 158HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 67-2S: Fresh MDW Subcatch 2 (from SRF) Runoff = 2.91 cfs @ 12.10 hrs, Volume= 0.145 af, Depth= 1.58" Routed to Pond 65P : Fresh MDW Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Area (ac) CN Description * 1.100 71 Weighted 1.100 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 7.0 Direct Entry, Subcatchment 67-2S: Fresh MDW Subcatch 2 (from SRF) Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)3 2 1 0 MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Runoff Area=1.100 ac Runoff Volume=0.145 af Runoff Depth=1.58" Tc=7.0 min CN=71 2.91 cfs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 159HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 67-3S: Fresh MDW Subcatch 3 (from SRF) [45] Hint: Runoff=Zero Runoff = 0.00 cfs @ 0.00 hrs, Volume= 0.000 af, Depth= 0.00" Routed to Pond 65P : Fresh MDW Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Area (ac) CN Description * 2.300 10 Weighted 2.300 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 83.0 Direct Entry, Subcatchment 67-3S: Fresh MDW Subcatch 3 (from SRF) Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)1 0 MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Runoff Area=2.300 ac Runoff Volume=0.000 af Runoff Depth=0.00" Tc=83.0 min CN=10 0.00 cfs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 160HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 68S: M10 Runoff = 45.10 cfs @ 12.14 hrs, Volume= 2.546 af, Depth= 1.80" Routed to Pond 68P : East MNDOT M10 Wetland Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Area (ac) CN Description * 17.000 74 Weighted 17.000 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 10.0 Direct Entry, Subcatchment 68S: M10 Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)50 48 46 44 42 40 38 36 34 32 30 28 26 24 22 20 18 16 14 12 10 8 6 4 2 0 MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Runoff Area=17.000 ac Runoff Volume=2.546 af Runoff Depth=1.80" Tc=10.0 min CN=74 45.10 cfs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 161HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Reach 10R: Lake Susan Drainage [40] Hint: Not Described (Outflow=Inflow) Inflow Area = 41.033 ac, 12.36% Impervious, Inflow Depth = 2.49" for 10y 24hr event Inflow = 30.95 cfs @ 12.46 hrs, Volume= 8.501 af Outflow = 30.95 cfs @ 12.46 hrs, Volume= 8.501 af, Atten= 0%, Lag= 0.0 min Routed to Reach 61R : NERDITCH Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Reach 10R: Lake Susan Drainage Inflow Outflow Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)34 32 30 28 26 24 22 20 18 16 14 12 10 8 6 4 2 0 Inflow Area=41.033 ac 30.95 cfs 30.95 cfs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 162HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Reach 61R: NERDITCH Inflow Area = 50.433 ac, 10.06% Impervious, Inflow Depth = 2.56" for 10y 24hr event Inflow = 53.91 cfs @ 12.13 hrs, Volume= 10.761 af Outflow = 50.88 cfs @ 12.17 hrs, Volume= 10.761 af, Atten= 6%, Lag= 2.4 min Routed to Pond 61P : Englewood Pond Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Max. Velocity= 3.12 fps, Min. Travel Time= 2.9 min Avg. Velocity = 0.47 fps, Avg. Travel Time= 19.3 min Peak Storage= 8,890 cf @ 12.17 hrs Average Depth at Peak Storage= 1.35' , Surface Width= 16.12' Bank-Full Depth= 5.00' Flow Area= 115.0 sf, Capacity= 737.08 cfs 8.00' x 5.00' deep channel, n= 0.035 Side Slope Z-value= 3.0 '/' Top Width= 38.00' Length= 545.0' Slope= 0.0055 '/' Inlet Invert= 895.00', Outlet Invert= 892.00' ‡ Reach 61R: NERDITCH Inflow Outflow Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)60 55 50 45 40 35 30 25 20 15 10 5 0 Inflow Area=50.433 ac Avg. Flow Depth=1.35' Max Vel=3.12 fps n=0.035 L=545.0' S=0.0055 '/' Capacity=737.08 cfs 53.91 cfs 50.88 cfs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 163HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Reach 62R: L42 [52] Hint: Inlet/Outlet conditions not evaluated Inflow Area = 4.200 ac, 0.00% Impervious, Inflow Depth = 2.35" for 10y 24hr event Inflow = 16.23 cfs @ 12.11 hrs, Volume= 0.823 af Outflow = 16.13 cfs @ 12.12 hrs, Volume= 0.823 af, Atten= 1%, Lag= 0.5 min Routed to Pond 61P : Englewood Pond Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Max. Velocity= 6.27 fps, Min. Travel Time= 0.5 min Avg. Velocity = 2.01 fps, Avg. Travel Time= 1.7 min Peak Storage= 515 cf @ 12.12 hrs Average Depth at Peak Storage= 1.53' , Surface Width= 1.70' Bank-Full Depth= 2.00' Flow Area= 3.1 sf, Capacity= 17.33 cfs 24.0" Round Pipe n= 0.012 Length= 200.0' Slope= 0.0050 '/' Inlet Invert= 893.00', Outlet Invert= 892.00' MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 164HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Reach 62R: L42 Inflow Outflow Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 Inflow Area=4.200 ac Avg. Flow Depth=1.53' Max Vel=6.27 fps 24.0" Round Pipe n=0.012 L=200.0' S=0.0050 '/' Capacity=17.33 cfs 16.23 cfs 16.13 cfs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 165HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Pond 1P: East Central Temp Basin Inflow Area = 34.862 ac, 13.75% Impervious, Inflow Depth = 2.51" for 10y 24hr event Inflow = 85.07 cfs @ 12.30 hrs, Volume= 7.303 af Outflow = 22.51 cfs @ 12.89 hrs, Volume= 7.298 af, Atten= 74%, Lag= 34.8 min Primary = 22.51 cfs @ 12.89 hrs, Volume= 7.298 af Routed to Pond 11.4P : East Pond Secondary = 0.00 cfs @ 0.00 hrs, Volume= 0.000 af Routed to Pond 11.4P : East Pond Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 909.64' @ 12.89 hrs Surf.Area= 60,290 sf Storage= 142,050 cf Plug-Flow detention time= 149.6 min calculated for 7.298 af (100% of inflow) Center-of-Mass det. time= 149.2 min ( 966.5 - 817.3 ) Volume Invert Avail.Storage Storage Description #1 906.43' 364,823 cf Basin 2 (Prismatic) Listed below (Recalc) Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 906.43 37,075 0 0 908.00 41,840 61,948 61,948 909.00 48,360 45,100 107,048 910.00 66,876 57,618 164,666 911.50 200,000 200,157 364,823 Device Routing Invert Outlet Devices #1 Secondary 910.20'25.0' long x 80.0' breadth EOF Head (feet) 0.20 0.40 0.60 0.80 1.00 1.20 1.40 1.60 Coef. (English) 2.68 2.70 2.70 2.64 2.63 2.64 2.64 2.63 #2 Primary 906.43'24.0" Round Culvert L= 199.0' RCP, sq.cut end projecting, Ke= 0.500 Inlet / Outlet Invert= 906.43' / 904.00' S= 0.0122 '/' Cc= 0.900 n= 0.011 Concrete pipe, straight & clean, Flow Area= 3.14 sf Primary OutFlow Max=22.51 cfs @ 12.89 hrs HW=909.64' TW=904.45' (Dynamic Tailwater) 2=Culvert (Inlet Controls 22.51 cfs @ 7.16 fps) Secondary OutFlow Max=0.00 cfs @ 0.00 hrs HW=906.43' TW=904.00' (Dynamic Tailwater) 1=EOF ( Controls 0.00 cfs) MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 166HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Pond 1P: East Central Temp Basin Inflow Outflow Primary Secondary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)95 90 85 80 75 70 65 60 55 50 45 40 35 30 25 20 15 10 5 0 Inflow Area=34.862 ac Peak Elev=909.64' Storage=142,050 cf 85.07 cfs 22.51 cfs 22.51 cfs 0.00 cfs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 167HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Pond 11.4P: East Pond Inflow Area = 40.214 ac, 12.61% Impervious, Inflow Depth = 2.49" for 10y 24hr event Inflow = 30.37 cfs @ 12.43 hrs, Volume= 8.346 af Outflow = 30.16 cfs @ 12.47 hrs, Volume= 8.346 af, Atten= 1%, Lag= 2.5 min Primary = 30.16 cfs @ 12.47 hrs, Volume= 8.346 af Routed to Reach 10R : Lake Susan Drainage Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 904.49' @ 12.47 hrs Surf.Area= 13,369 sf Storage= 6,207 cf Plug-Flow detention time= 6.0 min calculated for 8.346 af (100% of inflow) Center-of-Mass det. time= 5.8 min ( 953.1 - 947.2 ) Volume Invert Avail.Storage Storage Description #1 904.00' 68,298 cf Custom Stage Data (Prismatic) Listed below (Recalc) Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 904.00 12,200 0 0 906.00 17,015 29,215 29,215 908.00 22,068 39,083 68,298 Device Routing Invert Outlet Devices #1 Primary 895.97'54.0" Round Culvert L= 232.0' RCP, square edge headwall, Ke= 0.500 Inlet / Outlet Invert= 895.97' / 894.53' S= 0.0062 '/' Cc= 0.900 n= 0.011 Concrete pipe, straight & clean, Flow Area= 15.90 sf #2 Device 1 904.00'84.0" Horiz. Orifice/Grate C= 0.600 Limited to weir flow at low heads #3 Primary 904.00'Custom Weir/Orifice, Cv= 2.62 (C= 3.28) Head (feet) 0.00 0.25 0.50 0.75 1.00 Width (feet) 0.10 7.33 11.00 14.67 22.00 Primary OutFlow Max=30.15 cfs @ 12.47 hrs HW=904.49' TW=0.00' (Dynamic Tailwater) 1=Culvert (Passes 24.32 cfs of 191.68 cfs potential flow) 2=Orifice/Grate (Weir Controls 24.32 cfs @ 2.28 fps) 3=Custom Weir/Orifice (Weir Controls 5.83 cfs @ 1.90 fps) MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 168HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Pond 11.4P: East Pond Inflow Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)34 32 30 28 26 24 22 20 18 16 14 12 10 8 6 4 2 0 Inflow Area=40.214 ac Peak Elev=904.49' Storage=6,207 cf 30.37 cfs 30.16 cfs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 169HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Pond 13P: Live Storage Inflow Area = 5.779 ac, 68.19% Impervious, Inflow Depth = 3.38" for 10y 24hr event Inflow = 31.69 cfs @ 12.10 hrs, Volume= 1.627 af Outflow = 20.96 cfs @ 12.18 hrs, Volume= 1.606 af, Atten= 34%, Lag= 4.7 min Primary = 20.96 cfs @ 12.18 hrs, Volume= 1.606 af Routed to Pond 1P : East Central Temp Basin Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 915.85' @ 12.18 hrs Surf.Area= 4,554 sf Storage= 14,950 cf Plug-Flow detention time= 69.0 min calculated for 1.606 af (99% of inflow) Center-of-Mass det. time= 61.3 min ( 834.1 - 772.8 ) Volume Invert Avail.Storage Storage Description #1A 911.20' 6,060 cf 22.00'W x 207.00'L x 6.00'H Field A 27,324 cf Overall - 12,174 cf Embedded = 15,150 cf x 40.0% Voids #2A 911.70' 12,174 cf CMP Round 60 x 30 Inside #1 Effective Size= 60.0"W x 60.0"H => 19.63 sf x 20.00'L = 392.7 cf Overall Size= 60.0"W x 60.0"H x 20.00'L 30 Chambers in 3 Rows 20.00' Header x 19.63 sf x 1 = 392.7 cf Inside #3 916.70' 6,362 cf 30.00'D x 3.00'H Vertical Cone/Cylinder x 3 24,596 cf Total Available Storage Storage Group A created with Chamber Wizard Device Routing Invert Outlet Devices #1 Primary 911.70'21.0" Round Culvert L= 26.0' RCP, square edge headwall, Ke= 0.500 Inlet / Outlet Invert= 911.70' / 911.62' S= 0.0031 '/' Cc= 0.900 n= 0.013 Concrete pipe, straight & clean, Flow Area= 2.41 sf #2 Device 1 911.70'4.0" Vert. Orifice/Grate C= 0.600 Limited to weir flow at low heads #3 Device 1 913.70'5.0' long Sharp-Crested Rectangular Weir 2 End Contraction(s) 2.0' Crest Height Primary OutFlow Max=20.95 cfs @ 12.18 hrs HW=915.85' TW=907.79' (Dynamic Tailwater) 1=Culvert (Inlet Controls 20.95 cfs @ 8.71 fps) 2=Orifice/Grate (Passes < 0.84 cfs potential flow) 3=Sharp-Crested Rectangular Weir (Passes < 53.25 cfs potential flow) MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 170HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Pond 13P: Live Storage - Chamber Wizard Field A Chamber Model = CMP Round 60 (Round Corrugated Metal Pipe) Effective Size= 60.0"W x 60.0"H => 19.63 sf x 20.00'L = 392.7 cf Overall Size= 60.0"W x 60.0"H x 20.00'L 60.0" Wide + 30.0" Spacing = 90.0" C-C Row Spacing 10 Chambers/Row x 20.00' Long +5.00' Header x 1 = 205.00' Row Length +12.0" End Stone x 2 = 207.00' Base Length 3 Rows x 60.0" Wide + 30.0" Spacing x 2 + 12.0" Side Stone x 2 = 22.00' Base Width 6.0" Stone Base + 60.0" Chamber Height + 6.0" Stone Cover = 6.00' Field Height 30 Chambers x 392.7 cf + 20.00' Header x 19.63 sf = 12,173.7 cf Chamber Storage 27,324.0 cf Field - 12,173.7 cf Chambers = 15,150.3 cf Stone x 40.0% Voids = 6,060.1 cf Stone Storage Chamber Storage + Stone Storage = 18,233.8 cf = 0.419 af Overall Storage Efficiency = 66.7% Overall System Size = 207.00' x 22.00' x 6.00' 30 Chambers 1,012.0 cy Field 561.1 cy Stone MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 171HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Pond 13P: Live Storage Inflow Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)34 32 30 28 26 24 22 20 18 16 14 12 10 8 6 4 2 0 Inflow Area=5.779 ac Peak Elev=915.85' Storage=14,950 cf 31.69 cfs 20.96 cfs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 172HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Pond 61P: Englewood Pond [44] Hint: Outlet device #2 is below defined storage [62] Hint: Exceeded Reach 61R OUTLET depth by 1.33' @ 15.70 hrs [63] Warning: Exceeded Reach 62R INLET depth by 0.77' @ 15.24 hrs Inflow Area = 70.633 ac, 7.18% Impervious, Inflow Depth = 2.53" for 10y 24hr event Inflow = 120.59 cfs @ 12.15 hrs, Volume= 14.872 af Outflow = 21.43 cfs @ 14.51 hrs, Volume= 14.813 af, Atten= 82%, Lag= 141.7 min Primary = 21.43 cfs @ 14.51 hrs, Volume= 14.813 af Routed to Pond 68P : East MNDOT M10 Wetland Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 893.99' @ 14.51 hrs Surf.Area= 157,489 sf Storage= 292,973 cf Plug-Flow detention time= 556.3 min calculated for 14.813 af (100% of inflow) Center-of-Mass det. time= 539.2 min ( 1,425.8 - 886.6 ) Volume Invert Avail.Storage Storage Description #1 892.00' 1,031,055 cf Custom Stage Data (Prismatic) Listed below (Recalc) Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 892.00 136,580 0 0 895.00 168,060 456,960 456,960 898.00 214,670 574,095 1,031,055 Device Routing Invert Outlet Devices #1 Primary 892.00'42.0" Round Culvert L= 29.0' RCP, square edge headwall, Ke= 0.500 Inlet / Outlet Invert= 892.00' / 891.71' S= 0.0100 '/' Cc= 0.900 n= 0.013 Concrete pipe, straight & clean, Flow Area= 9.62 sf #2 Device 1 887.63'42.0" Round Culvert L= 13.0' RCP, end-section conforming to fill, Ke= 0.500 Inlet / Outlet Invert= 887.50' / 887.63' S= -0.0100 '/' Cc= 0.900 n= 0.013 Concrete pipe, straight & clean, Flow Area= 9.62 sf Primary OutFlow Max=21.43 cfs @ 14.51 hrs HW=893.99' TW=891.64' (Dynamic Tailwater) 1=Culvert (Barrel Controls 21.43 cfs @ 5.47 fps) 2=Culvert (Passes 21.43 cfs of 65.39 cfs potential flow) MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 173HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Pond 61P: Englewood Pond Inflow Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)130 120 110 100 90 80 70 60 50 40 30 20 10 0 Inflow Area=70.633 ac Peak Elev=893.99' Storage=292,973 cf 120.59 cfs 21.43 cfs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 174HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Pond 65P: Fresh MDW Inflow Area = 12.140 ac, 3.62% Impervious, Inflow Depth = 2.19" for 10y 24hr event Inflow = 31.73 cfs @ 12.14 hrs, Volume= 2.215 af Outflow = 8.68 cfs @ 12.60 hrs, Volume= 2.061 af, Atten= 73%, Lag= 27.5 min Primary = 8.68 cfs @ 12.60 hrs, Volume= 2.061 af Routed to Pond 68P : East MNDOT M10 Wetland Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 898.12' @ 12.60 hrs Surf.Area= 23,668 sf Storage= 44,673 cf Plug-Flow detention time= 179.2 min calculated for 2.061 af (93% of inflow) Center-of-Mass det. time= 147.5 min ( 935.0 - 787.5 ) Volume Invert Avail.Storage Storage Description #1 896.00' 123,320 cf Custom Stage Data (Prismatic) Listed below (Recalc) Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 896.00 18,540 0 0 900.00 28,230 93,540 93,540 901.00 31,330 29,780 123,320 Device Routing Invert Outlet Devices #1 Primary 892.35'12.0" Round Culvert L= 35.0' RCP, square edge headwall, Ke= 0.500 Inlet / Outlet Invert= 892.00' / 892.35' S= -0.0100 '/' Cc= 0.900 n= 0.012, Flow Area= 0.79 sf #2 Device 1 896.35'33.0" Round Culvert L= 69.0' RCP, end-section conforming to fill, Ke= 0.500 Inlet / Outlet Invert= 896.35' / 896.01' S= 0.0049 '/' Cc= 0.900 n= 0.012 Concrete pipe, finished, Flow Area= 5.94 sf Primary OutFlow Max=8.68 cfs @ 12.60 hrs HW=898.12' TW=890.77' (Dynamic Tailwater) 1=Culvert (Inlet Controls 8.68 cfs @ 11.05 fps) 2=Culvert (Passes 8.68 cfs of 14.23 cfs potential flow) MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 175HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Pond 65P: Fresh MDW Inflow Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)34 32 30 28 26 24 22 20 18 16 14 12 10 8 6 4 2 0 Inflow Area=12.140 ac Peak Elev=898.12' Storage=44,673 cf 31.73 cfs 8.68 cfs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 176HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Pond 68P: East MNDOT M10 Wetland Inflow Area = 99.773 ac, 5.52% Impervious, Inflow Depth = 2.34" for 10y 24hr event Inflow = 53.61 cfs @ 12.15 hrs, Volume= 19.420 af Outflow = 2.88 cfs @ 24.91 hrs, Volume= 16.076 af, Atten= 95%, Lag= 765.7 min Primary = 2.88 cfs @ 24.91 hrs, Volume= 16.076 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 892.62' @ 24.91 hrs Surf.Area= 360,834 sf Storage= 619,068 cf Plug-Flow detention time= 2,888.7 min calculated for 16.076 af (83% of inflow) Center-of-Mass det. time= 2,541.3 min ( 3,834.6 - 1,293.3 ) Volume Invert Avail.Storage Storage Description #1 890.00' 1,574,445 cf Custom Stage Data (Prismatic) Listed below (Recalc) Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 890.00 68,660 0 0 891.00 198,790 133,725 133,725 892.00 340,250 269,520 403,245 895.00 440,550 1,171,200 1,574,445 Device Routing Invert Outlet Devices #1 Primary 890.30'18.0" Round Culvert L= 155.0' RCP, square edge headwall, Ke= 0.500 Inlet / Outlet Invert= 890.30' / 889.53' S= 0.0050 '/' Cc= 0.900 n= 0.013 Concrete pipe, straight & clean, Flow Area= 1.77 sf #2 Device 1 891.00'10.0" Vert. Orifice/Grate C= 0.600 Limited to weir flow at low heads #3 Device 2 890.50'18.0" Round Culvert L= 40.0' RCP, end-section conforming to fill, Ke= 0.500 Inlet / Outlet Invert= 890.30' / 890.50' S= -0.0050 '/' Cc= 0.900 n= 0.013 Concrete pipe, straight & clean, Flow Area= 1.77 sf Primary OutFlow Max=2.88 cfs @ 24.91 hrs HW=892.62' (Free Discharge) 1=Culvert (Passes 2.88 cfs of 8.58 cfs potential flow) 2=Orifice/Grate (Orifice Controls 2.88 cfs @ 5.27 fps) 3=Culvert (Passes 2.88 cfs of 8.57 cfs potential flow) MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 177HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Pond 68P: East MNDOT M10 Wetland Inflow Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)60 55 50 45 40 35 30 25 20 15 10 5 0 Inflow Area=99.773 ac Peak Elev=892.62' Storage=619,068 cf 53.61 cfs 2.88 cfs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 178HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Time span=0.00-360.00 hrs, dt=0.01 hrs, 36001 points Runoff by SCS TR-20 method, UH=SCS, Weighted-CN Reach routing by Dyn-Stor-Ind method - Pond routing by Dyn-Stor-Ind method Runoff Area=1,266,860 sf 2.93% Impervious Runoff Depth=5.19"Subcatchment 1S: North East Flow Length=1,058' Tc=23.9 min CN=81 Runoff=137.41 cfs 12.573 af Runoff Area=35,675 sf 0.00% Impervious Runoff Depth=5.07"Subcatchment 11oS: Offsite East Flow Length=94' Slope=0.0430 '/' Tc=10.6 min CN=80 Runoff=5.61 cfs 0.346 af Runoff Area=233,115 sf 5.23% Impervious Runoff Depth=5.19"Subcatchment 11S: East Flow Length=783' Tc=24.3 min CN=81 Runoff=25.07 cfs 2.314 af Subcatchment 12S: (new Subcat) Runoff=0.00 cfs 0.000 af Runoff Area=251,740 sf 0.00% Impervious Runoff Depth=5.07"Subcatchment 013S: Undeveloped Site of Tc=30.0 min CN=80 Runoff=23.82 cfs 2.444 af Runoff Area=251,740 sf 68.19% Impervious Runoff Depth=6.46"Subcatchment 13S: Rowhomes Tc=7.5 min CN=92 Runoff=54.29 cfs 3.111 af Runoff Area=9.400 ac 0.00% Impervious Runoff Depth=5.88"Subcatchment 61S: Powers (from SRF) Tc=9.0 min CN=87 Runoff=77.82 cfs 4.603 af Runoff Area=4.200 ac 0.00% Impervious Runoff Depth=5.19"Subcatchment 62S: NE Ramp (from SRF) Tc=8.0 min CN=81 Runoff=32.86 cfs 1.816 af Runoff Area=8.200 ac 0.00% Impervious Runoff Depth=5.88"Subcatchment 63S: TH 212 (from SRF) Tc=12.0 min CN=87 Runoff=59.82 cfs 4.016 af Runoff Area=7.800 ac 0.00% Impervious Runoff Depth=4.74"Subcatchment 64S: Englewood (from SRF) Tc=10.0 min CN=77 Runoff=51.54 cfs 3.078 af Runoff Area=6.400 ac 0.00% Impervious Runoff Depth=5.42"Subcatchment 65S: LYMLP (from SRF) Tc=15.0 min CN=83 Runoff=39.40 cfs 2.888 af Runoff Area=1.900 ac 0.00% Impervious Runoff Depth=6.70"Subcatchment 66S: N54 (from SRF) Tc=7.6 min CN=94 Runoff=18.18 cfs 1.060 af Runoff Area=0.440 ac 100.00% Impervious Runoff Depth=7.41"Subcatchment 67-1S: Fresh MDW Tc=7.0 min CN=100 Runoff=4.43 cfs 0.272 af Runoff Area=1.100 ac 0.00% Impervious Runoff Depth=4.07"Subcatchment 67-2S: Fresh MDW Subcatch Tc=7.0 min CN=71 Runoff=7.21 cfs 0.373 af Runoff Area=2.300 ac 0.00% Impervious Runoff Depth=0.00"Subcatchment 67-3S: Fresh MDW Subcatch Tc=83.0 min CN=10 Runoff=0.00 cfs 0.000 af Runoff Area=17.000 ac 0.00% Impervious Runoff Depth=4.40"Subcatchment 68S: M10 Tc=10.0 min CN=74 Runoff=104.71 cfs 6.236 af MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 179HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Inflow=91.94 cfs 18.318 afReach 10R: Lake Susan Drainage Outflow=91.94 cfs 18.318 af Avg. Flow Depth=2.01' Max Vel=3.87 fps Inflow=113.62 cfs 22.921 afReach 61R: NERDITCH n=0.035 L=545.0' S=0.0055 '/' Capacity=737.08 cfs Outflow=109.35 cfs 22.921 af Avg. Flow Depth=2.00' Max Vel=6.29 fps Inflow=32.86 cfs 1.816 afReach 62R: L42 24.0" Round Pipe n=0.012 L=200.0' S=0.0050 '/' Capacity=17.33 cfs Outflow=18.89 cfs 1.816 af Peak Elev=911.02' Storage=279,095 cf Inflow=165.80 cfs 15.663 afPond 1P: East Central Temp Basin Primary=28.66 cfs 11.900 af Secondary=49.02 cfs 3.758 af Outflow=77.68 cfs 15.658 af Peak Elev=904.94' Storage=12,498 cf Inflow=90.96 cfs 17.972 afPond 11.4P: East Pond Outflow=90.82 cfs 17.972 af Peak Elev=919.62' Storage=24,431 cf Inflow=54.29 cfs 3.111 afPond 13P: Live Storage Outflow=30.75 cfs 3.090 af Peak Elev=895.95' Storage=623,601 cf Inflow=236.78 cfs 31.831 afPond 61P: Englewood Pond Outflow=61.65 cfs 31.760 af Peak Elev=900.32' Storage=102,625 cf Inflow=60.84 cfs 4.593 afPond 65P: Fresh MDW Outflow=10.33 cfs 4.439 af Peak Elev=894.39' Storage=1,311,530 cf Inflow=128.85 cfs 42.435 afPond 68P: East MNDOT M10 Wetland Outflow=4.53 cfs 39.007 af Total Runoff Area = 105.552 ac Runoff Volume = 45.129 af Average Runoff Depth = 5.13" 94.78% Pervious = 100.040 ac 5.22% Impervious = 5.512 ac MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 180HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 1S: North East Runoff = 137.41 cfs @ 12.32 hrs, Volume= 12.573 af, Depth= 5.19" Routed to Pond 1P : East Central Temp Basin Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Area (sf) CN Description * 1,229,785 80 >75% Grass cover, Good, HSG D * 37,075 100 Water 1,266,860 81 Weighted Average 1,229,785 97.07% Pervious Area 37,075 2.93% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 5.2 100 0.1100 0.32 Sheet Flow, Grass: Short n= 0.150 P2= 2.87" 6.8 460 0.0260 1.13 Shallow Concentrated Flow, Short Grass Pasture Kv= 7.0 fps 11.9 498 0.0100 0.70 Shallow Concentrated Flow, Short Grass Pasture Kv= 7.0 fps 23.9 1,058 Total Subcatchment 1S: North East Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)150 140 130 120 110 100 90 80 70 60 50 40 30 20 10 0 MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Runoff Area=1,266,860 sf Runoff Volume=12.573 af Runoff Depth=5.19" Flow Length=1,058' Tc=23.9 min CN=81 137.41 cfs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 181HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 11oS: Offsite East Runoff = 5.61 cfs @ 12.14 hrs, Volume= 0.346 af, Depth= 5.07" Routed to Reach 10R : Lake Susan Drainage Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Area (sf) CN Description 35,675 80 >75% Grass cover, Good, HSG D 35,675 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 10.6 94 0.0430 0.15 Sheet Flow, Grass: Dense n= 0.240 P2= 2.87" Subcatchment 11oS: Offsite East Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)6 5 4 3 2 1 0 MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Runoff Area=35,675 sf Runoff Volume=0.346 af Runoff Depth=5.07" Flow Length=94' Slope=0.0430 '/' Tc=10.6 min CN=80 5.61 cfs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 182HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 11S: East Runoff = 25.07 cfs @ 12.33 hrs, Volume= 2.314 af, Depth= 5.19" Routed to Pond 11.4P : East Pond Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Area (sf) CN Description * 220,915 80 >75% Grass cover, Good, HSG D 12,200 98 Water Surface, HSG D 233,115 81 Weighted Average 220,915 94.77% Pervious Area 12,200 5.23% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 9.9 178 0.0700 0.30 Sheet Flow, Grass: Short n= 0.150 P2= 2.87" 14.4 605 0.0100 0.70 Shallow Concentrated Flow, Short Grass Pasture Kv= 7.0 fps 24.3 783 Total Subcatchment 11S: East Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)28 26 24 22 20 18 16 14 12 10 8 6 4 2 0 MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Runoff Area=233,115 sf Runoff Volume=2.314 af Runoff Depth=5.19" Flow Length=783' Tc=24.3 min CN=81 25.07 cfs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 183HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 12S: (new Subcat) [40] Hint: Not Described (Area=0) Runoff = 0.00 cfs @ 0.00 hrs, Volume= 0.000 af, Depth= 0.00" Routed to Pond 13P : Live Storage Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Subcatchment 12S: (new Subcat) Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)1 0 MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" 0.00 cfs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 184HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 013S: Undeveloped Site of Rowhomes Runoff = 23.82 cfs @ 12.40 hrs, Volume= 2.444 af, Depth= 5.07" Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Area (sf) CN Description 251,740 80 >75% Grass cover, Good, HSG D 251,740 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 30.0 Direct Entry, Subcatchment 013S: Undeveloped Site of Rowhomes Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)26 24 22 20 18 16 14 12 10 8 6 4 2 0 MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Runoff Area=251,740 sf Runoff Volume=2.444 af Runoff Depth=5.07" Tc=30.0 min CN=80 23.82 cfs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 185HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 13S: Rowhomes Runoff = 54.29 cfs @ 12.10 hrs, Volume= 3.111 af, Depth= 6.46" Routed to Pond 13P : Live Storage Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Area (sf) CN Description 93,825 98 Roofs, HSG D 77,845 98 Paved parking, HSG D 80,070 80 >75% Grass cover, Good, HSG D 251,740 92 Weighted Average 80,070 31.81% Pervious Area 171,670 68.19% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 7.5 Direct Entry, Subcatchment 13S: Rowhomes Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)60 55 50 45 40 35 30 25 20 15 10 5 0 MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Runoff Area=251,740 sf Runoff Volume=3.111 af Runoff Depth=6.46" Tc=7.5 min CN=92 54.29 cfs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 186HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 61S: Powers (from SRF) Runoff = 77.82 cfs @ 12.12 hrs, Volume= 4.603 af, Depth= 5.88" Routed to Reach 61R : NERDITCH Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Area (ac) CN Description * 9.400 87 Weighted 9.400 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 9.0 Direct Entry, Subcatchment 61S: Powers (from SRF) Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)85 80 75 70 65 60 55 50 45 40 35 30 25 20 15 10 5 0 MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Runoff Area=9.400 ac Runoff Volume=4.603 af Runoff Depth=5.88" Tc=9.0 min CN=87 77.82 cfs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 187HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 62S: NE Ramp (from SRF) Runoff = 32.86 cfs @ 12.11 hrs, Volume= 1.816 af, Depth= 5.19" Routed to Reach 62R : L42 Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Area (ac) CN Description * 4.200 81 Weighted 4.200 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 8.0 Direct Entry, Subcatchment 62S: NE Ramp (from SRF) Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)36 34 32 30 28 26 24 22 20 18 16 14 12 10 8 6 4 2 0 MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Runoff Area=4.200 ac Runoff Volume=1.816 af Runoff Depth=5.19" Tc=8.0 min CN=81 32.86 cfs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 188HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 63S: TH 212 (from SRF) Runoff = 59.82 cfs @ 12.16 hrs, Volume= 4.016 af, Depth= 5.88" Routed to Pond 61P : Englewood Pond Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Area (ac) CN Description * 8.200 87 Weighted 8.200 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 12.0 Direct Entry, Subcatchment 63S: TH 212 (from SRF) Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)65 60 55 50 45 40 35 30 25 20 15 10 5 0 MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Runoff Area=8.200 ac Runoff Volume=4.016 af Runoff Depth=5.88" Tc=12.0 min CN=87 59.82 cfs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 189HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 64S: Englewood (from SRF) Runoff = 51.54 cfs @ 12.14 hrs, Volume= 3.078 af, Depth= 4.74" Routed to Pond 61P : Englewood Pond Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Area (ac) CN Description * 7.800 77 Weighted 7.800 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 10.0 Direct Entry, Subcatchment 64S: Englewood (from SRF) Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)55 50 45 40 35 30 25 20 15 10 5 0 MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Runoff Area=7.800 ac Runoff Volume=3.078 af Runoff Depth=4.74" Tc=10.0 min CN=77 51.54 cfs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 190HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 65S: LYMLP (from SRF) Runoff = 39.40 cfs @ 12.20 hrs, Volume= 2.888 af, Depth= 5.42" Routed to Pond 65P : Fresh MDW Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Area (ac) CN Description * 6.400 83 Weighted 6.400 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 15.0 Direct Entry, Subcatchment 65S: LYMLP (from SRF) Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)44 42 40 38 36 34 32 30 28 26 24 22 20 18 16 14 12 10 8 6 4 2 0 MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Runoff Area=6.400 ac Runoff Volume=2.888 af Runoff Depth=5.42" Tc=15.0 min CN=83 39.40 cfs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 191HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 66S: N54 (from SRF) Runoff = 18.18 cfs @ 12.10 hrs, Volume= 1.060 af, Depth= 6.70" Routed to Pond 65P : Fresh MDW Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Area (ac) CN Description * 1.900 94 Weighted 1.900 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 7.6 Direct Entry, Subcatchment 66S: N54 (from SRF) Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Runoff Area=1.900 ac Runoff Volume=1.060 af Runoff Depth=6.70" Tc=7.6 min CN=94 18.18 cfs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 192HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 67-1S: Fresh MDW Subcatch 1 (from SRF) Runoff = 4.43 cfs @ 12.09 hrs, Volume= 0.272 af, Depth= 7.41" Routed to Pond 65P : Fresh MDW Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Area (ac) CN Description * 0.440 100 Weighted 0.440 100.00% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 7.0 Direct Entry, Subcatchment 67-1S: Fresh MDW Subcatch 1 (from SRF) Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)4 3 2 1 0 MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Runoff Area=0.440 ac Runoff Volume=0.272 af Runoff Depth=7.41" Tc=7.0 min CN=100 4.43 cfs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 193HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 67-2S: Fresh MDW Subcatch 2 (from SRF) Runoff = 7.21 cfs @ 12.10 hrs, Volume= 0.373 af, Depth= 4.07" Routed to Pond 65P : Fresh MDW Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Area (ac) CN Description * 1.100 71 Weighted 1.100 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 7.0 Direct Entry, Subcatchment 67-2S: Fresh MDW Subcatch 2 (from SRF) Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)8 7 6 5 4 3 2 1 0 MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Runoff Area=1.100 ac Runoff Volume=0.373 af Runoff Depth=4.07" Tc=7.0 min CN=71 7.21 cfs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 194HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 67-3S: Fresh MDW Subcatch 3 (from SRF) [45] Hint: Runoff=Zero Runoff = 0.00 cfs @ 0.00 hrs, Volume= 0.000 af, Depth= 0.00" Routed to Pond 65P : Fresh MDW Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Area (ac) CN Description * 2.300 10 Weighted 2.300 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 83.0 Direct Entry, Subcatchment 67-3S: Fresh MDW Subcatch 3 (from SRF) Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)1 0 MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Runoff Area=2.300 ac Runoff Volume=0.000 af Runoff Depth=0.00" Tc=83.0 min CN=10 0.00 cfs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 195HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 68S: M10 Runoff = 104.71 cfs @ 12.14 hrs, Volume= 6.236 af, Depth= 4.40" Routed to Pond 68P : East MNDOT M10 Wetland Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Area (ac) CN Description * 17.000 74 Weighted 17.000 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 10.0 Direct Entry, Subcatchment 68S: M10 Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)115 110 105 100 95 90 85 80 75 70 65 60 55 50 45 40 35 30 25 20 15 10 5 0 MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Runoff Area=17.000 ac Runoff Volume=6.236 af Runoff Depth=4.40" Tc=10.0 min CN=74 104.71 cfs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 196HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Reach 10R: Lake Susan Drainage [40] Hint: Not Described (Outflow=Inflow) Inflow Area = 41.033 ac, 12.36% Impervious, Inflow Depth = 5.36" for 100y 24hr event Inflow = 91.94 cfs @ 12.66 hrs, Volume= 18.318 af Outflow = 91.94 cfs @ 12.66 hrs, Volume= 18.318 af, Atten= 0%, Lag= 0.0 min Routed to Reach 61R : NERDITCH Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Reach 10R: Lake Susan Drainage Inflow Outflow Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)100 95 90 85 80 75 70 65 60 55 50 45 40 35 30 25 20 15 10 5 0 Inflow Area=41.033 ac 91.94 cfs 91.94 cfs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 197HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Reach 61R: NERDITCH Inflow Area = 50.433 ac, 10.06% Impervious, Inflow Depth = 5.45" for 100y 24hr event Inflow = 113.62 cfs @ 12.13 hrs, Volume= 22.921 af Outflow = 109.35 cfs @ 12.16 hrs, Volume= 22.921 af, Atten= 4%, Lag= 1.8 min Routed to Pond 61P : Englewood Pond Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Max. Velocity= 3.87 fps, Min. Travel Time= 2.3 min Avg. Velocity = 0.49 fps, Avg. Travel Time= 18.7 min Peak Storage= 15,392 cf @ 12.16 hrs Average Depth at Peak Storage= 2.01' , Surface Width= 20.07' Bank-Full Depth= 5.00' Flow Area= 115.0 sf, Capacity= 737.08 cfs 8.00' x 5.00' deep channel, n= 0.035 Side Slope Z-value= 3.0 '/' Top Width= 38.00' Length= 545.0' Slope= 0.0055 '/' Inlet Invert= 895.00', Outlet Invert= 892.00' ‡ Reach 61R: NERDITCH Inflow Outflow Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)125 120 115 110 105 100 95 90 85 80 75 70 65 60 55 50 45 40 35 30 25 20 15 10 5 0 Inflow Area=50.433 ac Avg. Flow Depth=2.01' Max Vel=3.87 fps n=0.035 L=545.0' S=0.0055 '/' Capacity=737.08 cfs 113.62 cfs 109.35 cfs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 198HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Reach 62R: L42 [52] Hint: Inlet/Outlet conditions not evaluated [55] Hint: Peak inflow is 190% of Manning's capacity [76] Warning: Detained 0.147 af (Pond w/culvert advised) Inflow Area = 4.200 ac, 0.00% Impervious, Inflow Depth = 5.19" for 100y 24hr event Inflow = 32.86 cfs @ 12.11 hrs, Volume= 1.816 af Outflow = 18.89 cfs @ 12.51 hrs, Volume= 1.816 af, Atten= 43%, Lag= 23.9 min Routed to Pond 61P : Englewood Pond Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Max. Velocity= 6.29 fps, Min. Travel Time= 0.5 min Avg. Velocity = 2.39 fps, Avg. Travel Time= 1.4 min Peak Storage= 628 cf @ 12.04 hrs Average Depth at Peak Storage= 2.00' Bank-Full Depth= 2.00' Flow Area= 3.1 sf, Capacity= 17.33 cfs 24.0" Round Pipe n= 0.012 Length= 200.0' Slope= 0.0050 '/' Inlet Invert= 893.00', Outlet Invert= 892.00' MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 199HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Reach 62R: L42 Inflow Outflow Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)36 34 32 30 28 26 24 22 20 18 16 14 12 10 8 6 4 2 0 Inflow Area=4.200 ac Avg. Flow Depth=2.00' Max Vel=6.29 fps 24.0" Round Pipe n=0.012 L=200.0' S=0.0050 '/' Capacity=17.33 cfs 32.86 cfs 18.89 cfs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 200HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Pond 1P: East Central Temp Basin Inflow Area = 34.862 ac, 13.75% Impervious, Inflow Depth = 5.39" for 100y 24hr event Inflow = 165.80 cfs @ 12.30 hrs, Volume= 15.663 af Outflow = 77.68 cfs @ 12.69 hrs, Volume= 15.658 af, Atten= 53%, Lag= 23.5 min Primary = 28.66 cfs @ 12.69 hrs, Volume= 11.900 af Routed to Pond 11.4P : East Pond Secondary = 49.02 cfs @ 12.69 hrs, Volume= 3.758 af Routed to Pond 11.4P : East Pond Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 911.02' @ 12.69 hrs Surf.Area= 157,427 sf Storage= 279,095 cf Plug-Flow detention time= 111.2 min calculated for 15.658 af (100% of inflow) Center-of-Mass det. time= 111.3 min ( 901.5 - 790.1 ) Volume Invert Avail.Storage Storage Description #1 906.43' 364,823 cf Basin 2 (Prismatic) Listed below (Recalc) Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 906.43 37,075 0 0 908.00 41,840 61,948 61,948 909.00 48,360 45,100 107,048 910.00 66,876 57,618 164,666 911.50 200,000 200,157 364,823 Device Routing Invert Outlet Devices #1 Secondary 910.20'25.0' long x 80.0' breadth EOF Head (feet) 0.20 0.40 0.60 0.80 1.00 1.20 1.40 1.60 Coef. (English) 2.68 2.70 2.70 2.64 2.63 2.64 2.64 2.63 #2 Primary 906.43'24.0" Round Culvert L= 199.0' RCP, sq.cut end projecting, Ke= 0.500 Inlet / Outlet Invert= 906.43' / 904.00' S= 0.0122 '/' Cc= 0.900 n= 0.011 Concrete pipe, straight & clean, Flow Area= 3.14 sf Primary OutFlow Max=28.66 cfs @ 12.69 hrs HW=911.02' TW=904.94' (Dynamic Tailwater) 2=Culvert (Inlet Controls 28.66 cfs @ 9.12 fps) Secondary OutFlow Max=49.01 cfs @ 12.69 hrs HW=911.02' TW=904.94' (Dynamic Tailwater) 1=EOF (Weir Controls 49.01 cfs @ 2.39 fps) MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 201HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Pond 1P: East Central Temp Basin Inflow Outflow Primary Secondary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)180 170 160 150 140 130 120 110 100 90 80 70 60 50 40 30 20 10 0 Inflow Area=34.862 ac Peak Elev=911.02' Storage=279,095 cf 165.80 cfs 77.68 cfs 28.66 cfs 49.02 cfs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 202HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Pond 11.4P: East Pond Inflow Area = 40.214 ac, 12.61% Impervious, Inflow Depth = 5.36" for 100y 24hr event Inflow = 90.96 cfs @ 12.65 hrs, Volume= 17.972 af Outflow = 90.82 cfs @ 12.67 hrs, Volume= 17.972 af, Atten= 0%, Lag= 1.2 min Primary = 90.82 cfs @ 12.67 hrs, Volume= 17.972 af Routed to Reach 10R : Lake Susan Drainage Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 904.94' @ 12.67 hrs Surf.Area= 14,457 sf Storage= 12,498 cf Plug-Flow detention time= 4.2 min calculated for 17.972 af (100% of inflow) Center-of-Mass det. time= 4.1 min ( 891.1 - 887.0 ) Volume Invert Avail.Storage Storage Description #1 904.00' 68,298 cf Custom Stage Data (Prismatic) Listed below (Recalc) Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 904.00 12,200 0 0 906.00 17,015 29,215 29,215 908.00 22,068 39,083 68,298 Device Routing Invert Outlet Devices #1 Primary 895.97'54.0" Round Culvert L= 232.0' RCP, square edge headwall, Ke= 0.500 Inlet / Outlet Invert= 895.97' / 894.53' S= 0.0062 '/' Cc= 0.900 n= 0.011 Concrete pipe, straight & clean, Flow Area= 15.90 sf #2 Device 1 904.00'84.0" Horiz. Orifice/Grate C= 0.600 Limited to weir flow at low heads #3 Primary 904.00'Custom Weir/Orifice, Cv= 2.62 (C= 3.28) Head (feet) 0.00 0.25 0.50 0.75 1.00 Width (feet) 0.10 7.33 11.00 14.67 22.00 Primary OutFlow Max=90.81 cfs @ 12.67 hrs HW=904.94' TW=0.00' (Dynamic Tailwater) 1=Culvert (Passes 65.29 cfs of 198.48 cfs potential flow) 2=Orifice/Grate (Weir Controls 65.29 cfs @ 3.17 fps) 3=Custom Weir/Orifice (Weir Controls 25.53 cfs @ 2.63 fps) MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 203HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Pond 11.4P: East Pond Inflow Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)100 95 90 85 80 75 70 65 60 55 50 45 40 35 30 25 20 15 10 5 0 Inflow Area=40.214 ac Peak Elev=904.94' Storage=12,498 cf 90.96 cfs 90.82 cfs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 204HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Pond 13P: Live Storage Inflow Area = 5.779 ac, 68.19% Impervious, Inflow Depth = 6.46" for 100y 24hr event Inflow = 54.29 cfs @ 12.10 hrs, Volume= 3.111 af Outflow = 30.75 cfs @ 12.20 hrs, Volume= 3.090 af, Atten= 43%, Lag= 6.0 min Primary = 30.75 cfs @ 12.20 hrs, Volume= 3.090 af Routed to Pond 1P : East Central Temp Basin Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 919.62' @ 12.20 hrs Surf.Area= 6,675 sf Storage= 24,431 cf Plug-Flow detention time= 44.1 min calculated for 3.090 af (99% of inflow) Center-of-Mass det. time= 40.0 min ( 796.5 - 756.5 ) Volume Invert Avail.Storage Storage Description #1A 911.20' 6,060 cf 22.00'W x 207.00'L x 6.00'H Field A 27,324 cf Overall - 12,174 cf Embedded = 15,150 cf x 40.0% Voids #2A 911.70' 12,174 cf CMP Round 60 x 30 Inside #1 Effective Size= 60.0"W x 60.0"H => 19.63 sf x 20.00'L = 392.7 cf Overall Size= 60.0"W x 60.0"H x 20.00'L 30 Chambers in 3 Rows 20.00' Header x 19.63 sf x 1 = 392.7 cf Inside #3 916.70' 6,362 cf 30.00'D x 3.00'H Vertical Cone/Cylinder x 3 24,596 cf Total Available Storage Storage Group A created with Chamber Wizard Device Routing Invert Outlet Devices #1 Primary 911.70'21.0" Round Culvert L= 26.0' RCP, square edge headwall, Ke= 0.500 Inlet / Outlet Invert= 911.70' / 911.62' S= 0.0031 '/' Cc= 0.900 n= 0.013 Concrete pipe, straight & clean, Flow Area= 2.41 sf #2 Device 1 911.70'4.0" Vert. Orifice/Grate C= 0.600 Limited to weir flow at low heads #3 Device 1 913.70'5.0' long Sharp-Crested Rectangular Weir 2 End Contraction(s) 2.0' Crest Height Primary OutFlow Max=30.74 cfs @ 12.20 hrs HW=919.62' TW=909.62' (Dynamic Tailwater) 1=Culvert (Inlet Controls 30.74 cfs @ 12.78 fps) 2=Orifice/Grate (Passes < 1.17 cfs potential flow) 3=Sharp-Crested Rectangular Weir (Passes < 244.84 cfs potential flow) MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 205HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Pond 13P: Live Storage - Chamber Wizard Field A Chamber Model = CMP Round 60 (Round Corrugated Metal Pipe) Effective Size= 60.0"W x 60.0"H => 19.63 sf x 20.00'L = 392.7 cf Overall Size= 60.0"W x 60.0"H x 20.00'L 60.0" Wide + 30.0" Spacing = 90.0" C-C Row Spacing 10 Chambers/Row x 20.00' Long +5.00' Header x 1 = 205.00' Row Length +12.0" End Stone x 2 = 207.00' Base Length 3 Rows x 60.0" Wide + 30.0" Spacing x 2 + 12.0" Side Stone x 2 = 22.00' Base Width 6.0" Stone Base + 60.0" Chamber Height + 6.0" Stone Cover = 6.00' Field Height 30 Chambers x 392.7 cf + 20.00' Header x 19.63 sf = 12,173.7 cf Chamber Storage 27,324.0 cf Field - 12,173.7 cf Chambers = 15,150.3 cf Stone x 40.0% Voids = 6,060.1 cf Stone Storage Chamber Storage + Stone Storage = 18,233.8 cf = 0.419 af Overall Storage Efficiency = 66.7% Overall System Size = 207.00' x 22.00' x 6.00' 30 Chambers 1,012.0 cy Field 561.1 cy Stone MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 206HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Pond 13P: Live Storage Inflow Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)60 55 50 45 40 35 30 25 20 15 10 5 0 Inflow Area=5.779 ac Peak Elev=919.62' Storage=24,431 cf 54.29 cfs 30.75 cfs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 207HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Pond 61P: Englewood Pond [44] Hint: Outlet device #2 is below defined storage [62] Hint: Exceeded Reach 61R OUTLET depth by 2.75' @ 14.12 hrs [63] Warning: Exceeded Reach 62R INLET depth by 2.55' @ 13.76 hrs Inflow Area = 70.633 ac, 7.18% Impervious, Inflow Depth = 5.41" for 100y 24hr event Inflow = 236.78 cfs @ 12.15 hrs, Volume= 31.831 af Outflow = 61.65 cfs @ 13.64 hrs, Volume= 31.760 af, Atten= 74%, Lag= 89.1 min Primary = 61.65 cfs @ 13.64 hrs, Volume= 31.760 af Routed to Pond 68P : East MNDOT M10 Wetland Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 895.95' @ 13.64 hrs Surf.Area= 182,818 sf Storage= 623,601 cf Plug-Flow detention time= 1,012.4 min calculated for 31.760 af (100% of inflow) Center-of-Mass det. time= 1,003.6 min ( 1,845.5 - 841.9 ) Volume Invert Avail.Storage Storage Description #1 892.00' 1,031,055 cf Custom Stage Data (Prismatic) Listed below (Recalc) Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 892.00 136,580 0 0 895.00 168,060 456,960 456,960 898.00 214,670 574,095 1,031,055 Device Routing Invert Outlet Devices #1 Primary 892.00'42.0" Round Culvert L= 29.0' RCP, square edge headwall, Ke= 0.500 Inlet / Outlet Invert= 892.00' / 891.71' S= 0.0100 '/' Cc= 0.900 n= 0.013 Concrete pipe, straight & clean, Flow Area= 9.62 sf #2 Device 1 887.63'42.0" Round Culvert L= 13.0' RCP, end-section conforming to fill, Ke= 0.500 Inlet / Outlet Invert= 887.50' / 887.63' S= -0.0100 '/' Cc= 0.900 n= 0.013 Concrete pipe, straight & clean, Flow Area= 9.62 sf Primary OutFlow Max=61.65 cfs @ 13.64 hrs HW=895.95' TW=892.44' (Dynamic Tailwater) 1=Culvert (Barrel Controls 61.65 cfs @ 7.10 fps) 2=Culvert (Passes 61.65 cfs of 86.82 cfs potential flow) MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 208HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Pond 61P: Englewood Pond Inflow Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)260 240 220 200 180 160 140 120 100 80 60 40 20 0 Inflow Area=70.633 ac Peak Elev=895.95' Storage=623,601 cf 236.78 cfs 61.65 cfs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 209HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Pond 65P: Fresh MDW Inflow Area = 12.140 ac, 3.62% Impervious, Inflow Depth = 4.54" for 100y 24hr event Inflow = 60.84 cfs @ 12.14 hrs, Volume= 4.593 af Outflow = 10.33 cfs @ 12.88 hrs, Volume= 4.439 af, Atten= 83%, Lag= 44.3 min Primary = 10.33 cfs @ 12.88 hrs, Volume= 4.439 af Routed to Pond 68P : East MNDOT M10 Wetland Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 900.32' @ 12.88 hrs Surf.Area= 29,211 sf Storage= 102,625 cf Plug-Flow detention time= 161.7 min calculated for 4.439 af (97% of inflow) Center-of-Mass det. time= 145.2 min ( 914.6 - 769.4 ) Volume Invert Avail.Storage Storage Description #1 896.00' 123,320 cf Custom Stage Data (Prismatic) Listed below (Recalc) Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 896.00 18,540 0 0 900.00 28,230 93,540 93,540 901.00 31,330 29,780 123,320 Device Routing Invert Outlet Devices #1 Primary 892.35'12.0" Round Culvert L= 35.0' RCP, square edge headwall, Ke= 0.500 Inlet / Outlet Invert= 892.00' / 892.35' S= -0.0100 '/' Cc= 0.900 n= 0.012, Flow Area= 0.79 sf #2 Device 1 896.35'33.0" Round Culvert L= 69.0' RCP, end-section conforming to fill, Ke= 0.500 Inlet / Outlet Invert= 896.35' / 896.01' S= 0.0049 '/' Cc= 0.900 n= 0.012 Concrete pipe, finished, Flow Area= 5.94 sf Primary OutFlow Max=10.33 cfs @ 12.88 hrs HW=900.32' TW=891.80' (Dynamic Tailwater) 1=Culvert (Inlet Controls 10.33 cfs @ 13.16 fps) 2=Culvert (Passes 10.33 cfs of 42.27 cfs potential flow) MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 210HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Pond 65P: Fresh MDW Inflow Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)65 60 55 50 45 40 35 30 25 20 15 10 5 0 Inflow Area=12.140 ac Peak Elev=900.32' Storage=102,625 cf 60.84 cfs 10.33 cfs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 211HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Pond 68P: East MNDOT M10 Wetland Inflow Area = 99.773 ac, 5.52% Impervious, Inflow Depth = 5.10" for 100y 24hr event Inflow = 128.85 cfs @ 12.14 hrs, Volume= 42.435 af Outflow = 4.53 cfs @ 20.35 hrs, Volume= 39.007 af, Atten= 96%, Lag= 492.7 min Primary = 4.53 cfs @ 20.35 hrs, Volume= 39.007 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 894.39' @ 20.35 hrs Surf.Area= 420,124 sf Storage= 1,311,530 cf Plug-Flow detention time= 3,697.1 min calculated for 39.006 af (92% of inflow) Center-of-Mass det. time= 3,253.3 min ( 4,845.5 - 1,592.2 ) Volume Invert Avail.Storage Storage Description #1 890.00' 1,574,445 cf Custom Stage Data (Prismatic) Listed below (Recalc) Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 890.00 68,660 0 0 891.00 198,790 133,725 133,725 892.00 340,250 269,520 403,245 895.00 440,550 1,171,200 1,574,445 Device Routing Invert Outlet Devices #1 Primary 890.30'18.0" Round Culvert L= 155.0' RCP, square edge headwall, Ke= 0.500 Inlet / Outlet Invert= 890.30' / 889.53' S= 0.0050 '/' Cc= 0.900 n= 0.013 Concrete pipe, straight & clean, Flow Area= 1.77 sf #2 Device 1 891.00'10.0" Vert. Orifice/Grate C= 0.600 Limited to weir flow at low heads #3 Device 2 890.50'18.0" Round Culvert L= 40.0' RCP, end-section conforming to fill, Ke= 0.500 Inlet / Outlet Invert= 890.30' / 890.50' S= -0.0050 '/' Cc= 0.900 n= 0.013 Concrete pipe, straight & clean, Flow Area= 1.77 sf Primary OutFlow Max=4.53 cfs @ 20.35 hrs HW=894.39' (Free Discharge) 1=Culvert (Passes 4.53 cfs of 12.48 cfs potential flow) 2=Orifice/Grate (Orifice Controls 4.53 cfs @ 8.30 fps) 3=Culvert (Passes 4.53 cfs of 15.08 cfs potential flow) MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 212HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Pond 68P: East MNDOT M10 Wetland Inflow Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)140 130 120 110 100 90 80 70 60 50 40 30 20 10 0 Inflow Area=99.773 ac Peak Elev=894.39' Storage=1,311,530 cf 128.85 cfs 4.53 cfs Type II 24-hr 100y 24hr Old Rainfall=6.00"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 213HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Time span=0.00-360.00 hrs, dt=0.01 hrs, 36001 points Runoff by SCS TR-20 method, UH=SCS, Weighted-CN Reach routing by Dyn-Stor-Ind method - Pond routing by Dyn-Stor-Ind method Runoff Area=1,266,860 sf 2.93% Impervious Runoff Depth=3.88"Subcatchment 1S: North East Flow Length=1,058' Tc=23.9 min CN=81 Runoff=112.65 cfs 9.413 af Runoff Area=35,675 sf 0.00% Impervious Runoff Depth=3.78"Subcatchment 11oS: Offsite East Flow Length=94' Slope=0.0430 '/' Tc=10.6 min CN=80 Runoff=4.61 cfs 0.258 af Runoff Area=233,115 sf 5.23% Impervious Runoff Depth=3.88"Subcatchment 11S: East Flow Length=783' Tc=24.3 min CN=81 Runoff=20.60 cfs 1.732 af Subcatchment 12S: (new Subcat) Runoff=0.00 cfs 0.000 af Runoff Area=251,740 sf 0.00% Impervious Runoff Depth=3.78"Subcatchment 013S: Undeveloped Site of Tc=30.0 min CN=80 Runoff=19.00 cfs 1.821 af Runoff Area=251,740 sf 68.19% Impervious Runoff Depth=5.07"Subcatchment 13S: Rowhomes Tc=7.5 min CN=92 Runoff=44.88 cfs 2.441 af Runoff Area=9.400 ac 0.00% Impervious Runoff Depth=4.52"Subcatchment 61S: Powers (from SRF) Tc=9.0 min CN=87 Runoff=64.51 cfs 3.538 af Runoff Area=4.200 ac 0.00% Impervious Runoff Depth=3.88"Subcatchment 62S: NE Ramp (from SRF) Tc=8.0 min CN=81 Runoff=26.48 cfs 1.359 af Runoff Area=8.200 ac 0.00% Impervious Runoff Depth=4.52"Subcatchment 63S: TH 212 (from SRF) Tc=12.0 min CN=87 Runoff=51.01 cfs 3.087 af Runoff Area=7.800 ac 0.00% Impervious Runoff Depth=3.48"Subcatchment 64S: Englewood (from SRF) Tc=10.0 min CN=77 Runoff=41.57 cfs 2.261 af Runoff Area=6.400 ac 0.00% Impervious Runoff Depth=4.09"Subcatchment 65S: LYMLP (from SRF) Tc=15.0 min CN=83 Runoff=33.39 cfs 2.182 af Runoff Area=1.900 ac 0.00% Impervious Runoff Depth=5.30"Subcatchment 66S: N54 (from SRF) Tc=7.6 min CN=94 Runoff=15.03 cfs 0.839 af Runoff Area=0.440 ac 100.00% Impervious Runoff Depth=6.00"Subcatchment 67-1S: Fresh MDW Tc=7.0 min CN=100 Runoff=3.66 cfs 0.220 af Runoff Area=1.100 ac 0.00% Impervious Runoff Depth=2.90"Subcatchment 67-2S: Fresh MDW Subcatch Tc=7.0 min CN=71 Runoff=5.50 cfs 0.266 af Runoff Area=2.300 ac 0.00% Impervious Runoff Depth=0.00"Subcatchment 67-3S: Fresh MDW Subcatch Tc=83.0 min CN=10 Runoff=0.00 cfs 0.000 af Runoff Area=17.000 ac 0.00% Impervious Runoff Depth=3.18"Subcatchment 68S: M10 Tc=10.0 min CN=74 Runoff=83.35 cfs 4.512 af Type II 24-hr 100y 24hr Old Rainfall=6.00"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 214HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Inflow=48.80 cfs 13.818 afReach 10R: Lake Susan Drainage Outflow=48.80 cfs 13.818 af Avg. Flow Depth=1.82' Max Vel=3.66 fps Inflow=92.67 cfs 17.357 afReach 61R: NERDITCH n=0.035 L=545.0' S=0.0055 '/' Capacity=737.08 cfs Outflow=89.57 cfs 17.357 af Avg. Flow Depth=2.00' Max Vel=6.29 fps Inflow=26.48 cfs 1.359 afReach 62R: L42 24.0" Round Pipe n=0.012 L=200.0' S=0.0050 '/' Capacity=17.33 cfs Outflow=18.48 cfs 1.359 af Peak Elev=910.55' Storage=214,513 cf Inflow=137.07 cfs 11.833 afPond 1P: East Central Temp Basin Primary=26.71 cfs 11.192 af Secondary=13.76 cfs 0.637 af Outflow=40.47 cfs 11.828 af Peak Elev=904.65' Storage=8,370 cf Inflow=48.38 cfs 13.560 afPond 11.4P: East Pond Outflow=48.25 cfs 13.560 af Peak Elev=918.45' Storage=21,945 cf Inflow=44.88 cfs 2.441 afPond 13P: Live Storage Outflow=28.07 cfs 2.420 af Peak Elev=894.64' Storage=397,665 cf Inflow=198.31 cfs 24.064 afPond 61P: Englewood Pond Outflow=34.19 cfs 23.999 af Peak Elev=899.14' Storage=70,111 cf Inflow=52.86 cfs 3.506 afPond 65P: Fresh MDW Outflow=9.48 cfs 3.352 af Peak Elev=893.58' Storage=981,362 cf Inflow=102.49 cfs 31.863 afPond 68P: East MNDOT M10 Wetland Outflow=3.86 cfs 28.476 af Total Runoff Area = 105.552 ac Runoff Volume = 33.929 af Average Runoff Depth = 3.86" 94.78% Pervious = 100.040 ac 5.22% Impervious = 5.512 ac Type II 24-hr 100y 24hr Old Rainfall=6.00"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 215HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 1S: North East Runoff = 112.65 cfs @ 12.17 hrs, Volume= 9.413 af, Depth= 3.88" Routed to Pond 1P : East Central Temp Basin Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Type II 24-hr 100y 24hr Old Rainfall=6.00" Area (sf) CN Description * 1,229,785 80 >75% Grass cover, Good, HSG D * 37,075 100 Water 1,266,860 81 Weighted Average 1,229,785 97.07% Pervious Area 37,075 2.93% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 5.2 100 0.1100 0.32 Sheet Flow, Grass: Short n= 0.150 P2= 2.87" 6.8 460 0.0260 1.13 Shallow Concentrated Flow, Short Grass Pasture Kv= 7.0 fps 11.9 498 0.0100 0.70 Shallow Concentrated Flow, Short Grass Pasture Kv= 7.0 fps 23.9 1,058 Total Subcatchment 1S: North East Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)125 120 115 110 105 100 95 90 85 80 75 70 65 60 55 50 45 40 35 30 25 20 15 10 5 0 Type II 24-hr 100y 24hr Old Rainfall=6.00" Runoff Area=1,266,860 sf Runoff Volume=9.413 af Runoff Depth=3.88" Flow Length=1,058' Tc=23.9 min CN=81 112.65 cfs Type II 24-hr 100y 24hr Old Rainfall=6.00"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 216HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 11oS: Offsite East Runoff = 4.61 cfs @ 12.02 hrs, Volume= 0.258 af, Depth= 3.78" Routed to Reach 10R : Lake Susan Drainage Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Type II 24-hr 100y 24hr Old Rainfall=6.00" Area (sf) CN Description 35,675 80 >75% Grass cover, Good, HSG D 35,675 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 10.6 94 0.0430 0.15 Sheet Flow, Grass: Dense n= 0.240 P2= 2.87" Subcatchment 11oS: Offsite East Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)5 4 3 2 1 0 Type II 24-hr 100y 24hr Old Rainfall=6.00" Runoff Area=35,675 sf Runoff Volume=0.258 af Runoff Depth=3.78" Flow Length=94' Slope=0.0430 '/' Tc=10.6 min CN=80 4.61 cfs Type II 24-hr 100y 24hr Old Rainfall=6.00"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 217HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 11S: East Runoff = 20.60 cfs @ 12.18 hrs, Volume= 1.732 af, Depth= 3.88" Routed to Pond 11.4P : East Pond Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Type II 24-hr 100y 24hr Old Rainfall=6.00" Area (sf) CN Description * 220,915 80 >75% Grass cover, Good, HSG D 12,200 98 Water Surface, HSG D 233,115 81 Weighted Average 220,915 94.77% Pervious Area 12,200 5.23% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 9.9 178 0.0700 0.30 Sheet Flow, Grass: Short n= 0.150 P2= 2.87" 14.4 605 0.0100 0.70 Shallow Concentrated Flow, Short Grass Pasture Kv= 7.0 fps 24.3 783 Total Subcatchment 11S: East Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 Type II 24-hr 100y 24hr Old Rainfall=6.00" Runoff Area=233,115 sf Runoff Volume=1.732 af Runoff Depth=3.88" Flow Length=783' Tc=24.3 min CN=81 20.60 cfs Type II 24-hr 100y 24hr Old Rainfall=6.00"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 218HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 12S: (new Subcat) [40] Hint: Not Described (Area=0) Runoff = 0.00 cfs @ 0.00 hrs, Volume= 0.000 af, Depth= 0.00" Routed to Pond 13P : Live Storage Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Type II 24-hr 100y 24hr Old Rainfall=6.00" Subcatchment 12S: (new Subcat) Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)1 0 Type II 24-hr 100y 24hr Old Rainfall=6.00" 0.00 cfs Type II 24-hr 100y 24hr Old Rainfall=6.00"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 219HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 013S: Undeveloped Site of Rowhomes Runoff = 19.00 cfs @ 12.23 hrs, Volume= 1.821 af, Depth= 3.78" Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Type II 24-hr 100y 24hr Old Rainfall=6.00" Area (sf) CN Description 251,740 80 >75% Grass cover, Good, HSG D 251,740 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 30.0 Direct Entry, Subcatchment 013S: Undeveloped Site of Rowhomes Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 Type II 24-hr 100y 24hr Old Rainfall=6.00" Runoff Area=251,740 sf Runoff Volume=1.821 af Runoff Depth=3.78" Tc=30.0 min CN=80 19.00 cfs Type II 24-hr 100y 24hr Old Rainfall=6.00"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 220HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 13S: Rowhomes Runoff = 44.88 cfs @ 11.98 hrs, Volume= 2.441 af, Depth= 5.07" Routed to Pond 13P : Live Storage Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Type II 24-hr 100y 24hr Old Rainfall=6.00" Area (sf) CN Description 93,825 98 Roofs, HSG D 77,845 98 Paved parking, HSG D 80,070 80 >75% Grass cover, Good, HSG D 251,740 92 Weighted Average 80,070 31.81% Pervious Area 171,670 68.19% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 7.5 Direct Entry, Subcatchment 13S: Rowhomes Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)50 48 46 44 42 40 38 36 34 32 30 28 26 24 22 20 18 16 14 12 10 8 6 4 2 0 Type II 24-hr 100y 24hr Old Rainfall=6.00" Runoff Area=251,740 sf Runoff Volume=2.441 af Runoff Depth=5.07" Tc=7.5 min CN=92 44.88 cfs Type II 24-hr 100y 24hr Old Rainfall=6.00"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 221HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 61S: Powers (from SRF) Runoff = 64.51 cfs @ 12.00 hrs, Volume= 3.538 af, Depth= 4.52" Routed to Reach 61R : NERDITCH Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Type II 24-hr 100y 24hr Old Rainfall=6.00" Area (ac) CN Description * 9.400 87 Weighted 9.400 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 9.0 Direct Entry, Subcatchment 61S: Powers (from SRF) Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)70 65 60 55 50 45 40 35 30 25 20 15 10 5 0 Type II 24-hr 100y 24hr Old Rainfall=6.00" Runoff Area=9.400 ac Runoff Volume=3.538 af Runoff Depth=4.52" Tc=9.0 min CN=87 64.51 cfs Type II 24-hr 100y 24hr Old Rainfall=6.00"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 222HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 62S: NE Ramp (from SRF) Runoff = 26.48 cfs @ 11.99 hrs, Volume= 1.359 af, Depth= 3.88" Routed to Reach 62R : L42 Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Type II 24-hr 100y 24hr Old Rainfall=6.00" Area (ac) CN Description * 4.200 81 Weighted 4.200 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 8.0 Direct Entry, Subcatchment 62S: NE Ramp (from SRF) Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)28 26 24 22 20 18 16 14 12 10 8 6 4 2 0 Type II 24-hr 100y 24hr Old Rainfall=6.00" Runoff Area=4.200 ac Runoff Volume=1.359 af Runoff Depth=3.88" Tc=8.0 min CN=81 26.48 cfs Type II 24-hr 100y 24hr Old Rainfall=6.00"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 223HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 63S: TH 212 (from SRF) Runoff = 51.01 cfs @ 12.03 hrs, Volume= 3.087 af, Depth= 4.52" Routed to Pond 61P : Englewood Pond Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Type II 24-hr 100y 24hr Old Rainfall=6.00" Area (ac) CN Description * 8.200 87 Weighted 8.200 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 12.0 Direct Entry, Subcatchment 63S: TH 212 (from SRF) Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)55 50 45 40 35 30 25 20 15 10 5 0 Type II 24-hr 100y 24hr Old Rainfall=6.00" Runoff Area=8.200 ac Runoff Volume=3.087 af Runoff Depth=4.52" Tc=12.0 min CN=87 51.01 cfs Type II 24-hr 100y 24hr Old Rainfall=6.00"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 224HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 64S: Englewood (from SRF) Runoff = 41.57 cfs @ 12.02 hrs, Volume= 2.261 af, Depth= 3.48" Routed to Pond 61P : Englewood Pond Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Type II 24-hr 100y 24hr Old Rainfall=6.00" Area (ac) CN Description * 7.800 77 Weighted 7.800 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 10.0 Direct Entry, Subcatchment 64S: Englewood (from SRF) Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)46 44 42 40 38 36 34 32 30 28 26 24 22 20 18 16 14 12 10 8 6 4 2 0 Type II 24-hr 100y 24hr Old Rainfall=6.00" Runoff Area=7.800 ac Runoff Volume=2.261 af Runoff Depth=3.48" Tc=10.0 min CN=77 41.57 cfs Type II 24-hr 100y 24hr Old Rainfall=6.00"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 225HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 65S: LYMLP (from SRF) Runoff = 33.39 cfs @ 12.07 hrs, Volume= 2.182 af, Depth= 4.09" Routed to Pond 65P : Fresh MDW Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Type II 24-hr 100y 24hr Old Rainfall=6.00" Area (ac) CN Description * 6.400 83 Weighted 6.400 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 15.0 Direct Entry, Subcatchment 65S: LYMLP (from SRF) Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)36 34 32 30 28 26 24 22 20 18 16 14 12 10 8 6 4 2 0 Type II 24-hr 100y 24hr Old Rainfall=6.00" Runoff Area=6.400 ac Runoff Volume=2.182 af Runoff Depth=4.09" Tc=15.0 min CN=83 33.39 cfs Type II 24-hr 100y 24hr Old Rainfall=6.00"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 226HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 66S: N54 (from SRF) Runoff = 15.03 cfs @ 11.98 hrs, Volume= 0.839 af, Depth= 5.30" Routed to Pond 65P : Fresh MDW Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Type II 24-hr 100y 24hr Old Rainfall=6.00" Area (ac) CN Description * 1.900 94 Weighted 1.900 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 7.6 Direct Entry, Subcatchment 66S: N54 (from SRF) Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 Type II 24-hr 100y 24hr Old Rainfall=6.00" Runoff Area=1.900 ac Runoff Volume=0.839 af Runoff Depth=5.30" Tc=7.6 min CN=94 15.03 cfs Type II 24-hr 100y 24hr Old Rainfall=6.00"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 227HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 67-1S: Fresh MDW Subcatch 1 (from SRF) Runoff = 3.66 cfs @ 11.98 hrs, Volume= 0.220 af, Depth= 6.00" Routed to Pond 65P : Fresh MDW Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Type II 24-hr 100y 24hr Old Rainfall=6.00" Area (ac) CN Description * 0.440 100 Weighted 0.440 100.00% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 7.0 Direct Entry, Subcatchment 67-1S: Fresh MDW Subcatch 1 (from SRF) Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)4 3 2 1 0 Type II 24-hr 100y 24hr Old Rainfall=6.00" Runoff Area=0.440 ac Runoff Volume=0.220 af Runoff Depth=6.00" Tc=7.0 min CN=100 3.66 cfs Type II 24-hr 100y 24hr Old Rainfall=6.00"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 228HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 67-2S: Fresh MDW Subcatch 2 (from SRF) Runoff = 5.50 cfs @ 11.99 hrs, Volume= 0.266 af, Depth= 2.90" Routed to Pond 65P : Fresh MDW Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Type II 24-hr 100y 24hr Old Rainfall=6.00" Area (ac) CN Description * 1.100 71 Weighted 1.100 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 7.0 Direct Entry, Subcatchment 67-2S: Fresh MDW Subcatch 2 (from SRF) Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)6 5 4 3 2 1 0 Type II 24-hr 100y 24hr Old Rainfall=6.00" Runoff Area=1.100 ac Runoff Volume=0.266 af Runoff Depth=2.90" Tc=7.0 min CN=71 5.50 cfs Type II 24-hr 100y 24hr Old Rainfall=6.00"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 229HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 67-3S: Fresh MDW Subcatch 3 (from SRF) [45] Hint: Runoff=Zero Runoff = 0.00 cfs @ 0.00 hrs, Volume= 0.000 af, Depth= 0.00" Routed to Pond 65P : Fresh MDW Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Type II 24-hr 100y 24hr Old Rainfall=6.00" Area (ac) CN Description * 2.300 10 Weighted 2.300 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 83.0 Direct Entry, Subcatchment 67-3S: Fresh MDW Subcatch 3 (from SRF) Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)1 0 Type II 24-hr 100y 24hr Old Rainfall=6.00" Runoff Area=2.300 ac Runoff Volume=0.000 af Runoff Depth=0.00" Tc=83.0 min CN=10 0.00 cfs Type II 24-hr 100y 24hr Old Rainfall=6.00"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 230HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 68S: M10 Runoff = 83.35 cfs @ 12.02 hrs, Volume= 4.512 af, Depth= 3.18" Routed to Pond 68P : East MNDOT M10 Wetland Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Type II 24-hr 100y 24hr Old Rainfall=6.00" Area (ac) CN Description * 17.000 74 Weighted 17.000 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 10.0 Direct Entry, Subcatchment 68S: M10 Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)90 85 80 75 70 65 60 55 50 45 40 35 30 25 20 15 10 5 0 Type II 24-hr 100y 24hr Old Rainfall=6.00" Runoff Area=17.000 ac Runoff Volume=4.512 af Runoff Depth=3.18" Tc=10.0 min CN=74 83.35 cfs Type II 24-hr 100y 24hr Old Rainfall=6.00"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 231HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Reach 10R: Lake Susan Drainage [40] Hint: Not Described (Outflow=Inflow) Inflow Area = 41.033 ac, 12.36% Impervious, Inflow Depth = 4.04" for 100y 24hr Old event Inflow = 48.80 cfs @ 12.48 hrs, Volume= 13.818 af Outflow = 48.80 cfs @ 12.48 hrs, Volume= 13.818 af, Atten= 0%, Lag= 0.0 min Routed to Reach 61R : NERDITCH Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Reach 10R: Lake Susan Drainage Inflow Outflow Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)50 45 40 35 30 25 20 15 10 5 0 Inflow Area=41.033 ac 48.80 cfs 48.80 cfs Type II 24-hr 100y 24hr Old Rainfall=6.00"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 232HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Reach 61R: NERDITCH Inflow Area = 50.433 ac, 10.06% Impervious, Inflow Depth = 4.13" for 100y 24hr Old event Inflow = 92.67 cfs @ 12.02 hrs, Volume= 17.357 af Outflow = 89.57 cfs @ 12.05 hrs, Volume= 17.357 af, Atten= 3%, Lag= 1.8 min Routed to Pond 61P : Englewood Pond Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Max. Velocity= 3.66 fps, Min. Travel Time= 2.5 min Avg. Velocity = 0.49 fps, Avg. Travel Time= 18.5 min Peak Storage= 13,325 cf @ 12.05 hrs Average Depth at Peak Storage= 1.82' , Surface Width= 18.90' Bank-Full Depth= 5.00' Flow Area= 115.0 sf, Capacity= 737.08 cfs 8.00' x 5.00' deep channel, n= 0.035 Side Slope Z-value= 3.0 '/' Top Width= 38.00' Length= 545.0' Slope= 0.0055 '/' Inlet Invert= 895.00', Outlet Invert= 892.00' ‡ Reach 61R: NERDITCH Inflow Outflow Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)100 95 90 85 80 75 70 65 60 55 50 45 40 35 30 25 20 15 10 5 0 Inflow Area=50.433 ac Avg. Flow Depth=1.82' Max Vel=3.66 fps n=0.035 L=545.0' S=0.0055 '/' Capacity=737.08 cfs 92.67 cfs 89.57 cfs Type II 24-hr 100y 24hr Old Rainfall=6.00"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 233HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Reach 62R: L42 [52] Hint: Inlet/Outlet conditions not evaluated [55] Hint: Peak inflow is 153% of Manning's capacity [76] Warning: Detained 0.075 af (Pond w/culvert advised) Inflow Area = 4.200 ac, 0.00% Impervious, Inflow Depth = 3.88" for 100y 24hr Old event Inflow = 26.48 cfs @ 11.99 hrs, Volume= 1.359 af Outflow = 18.48 cfs @ 11.92 hrs, Volume= 1.359 af, Atten= 30%, Lag= 0.0 min Routed to Pond 61P : Englewood Pond Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Max. Velocity= 6.29 fps, Min. Travel Time= 0.5 min Avg. Velocity = 2.29 fps, Avg. Travel Time= 1.5 min Peak Storage= 628 cf @ 11.93 hrs Average Depth at Peak Storage= 2.00' Bank-Full Depth= 2.00' Flow Area= 3.1 sf, Capacity= 17.33 cfs 24.0" Round Pipe n= 0.012 Length= 200.0' Slope= 0.0050 '/' Inlet Invert= 893.00', Outlet Invert= 892.00' Type II 24-hr 100y 24hr Old Rainfall=6.00"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 234HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Reach 62R: L42 Inflow Outflow Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)28 26 24 22 20 18 16 14 12 10 8 6 4 2 0 Inflow Area=4.200 ac Avg. Flow Depth=2.00' Max Vel=6.29 fps 24.0" Round Pipe n=0.012 L=200.0' S=0.0050 '/' Capacity=17.33 cfs 26.48 cfs 18.48 cfs Type II 24-hr 100y 24hr Old Rainfall=6.00"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 235HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Pond 1P: East Central Temp Basin Inflow Area = 34.862 ac, 13.75% Impervious, Inflow Depth = 4.07" for 100y 24hr Old event Inflow = 137.07 cfs @ 12.16 hrs, Volume= 11.833 af Outflow = 40.47 cfs @ 12.55 hrs, Volume= 11.828 af, Atten= 70%, Lag= 23.4 min Primary = 26.71 cfs @ 12.55 hrs, Volume= 11.192 af Routed to Pond 11.4P : East Pond Secondary = 13.76 cfs @ 12.55 hrs, Volume= 0.637 af Routed to Pond 11.4P : East Pond Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 910.55' @ 12.55 hrs Surf.Area= 115,413 sf Storage= 214,513 cf Plug-Flow detention time= 135.4 min calculated for 11.828 af (100% of inflow) Center-of-Mass det. time= 135.3 min ( 964.0 - 828.7 ) Volume Invert Avail.Storage Storage Description #1 906.43' 364,823 cf Basin 2 (Prismatic) Listed below (Recalc) Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 906.43 37,075 0 0 908.00 41,840 61,948 61,948 909.00 48,360 45,100 107,048 910.00 66,876 57,618 164,666 911.50 200,000 200,157 364,823 Device Routing Invert Outlet Devices #1 Secondary 910.20'25.0' long x 80.0' breadth EOF Head (feet) 0.20 0.40 0.60 0.80 1.00 1.20 1.40 1.60 Coef. (English) 2.68 2.70 2.70 2.64 2.63 2.64 2.64 2.63 #2 Primary 906.43'24.0" Round Culvert L= 199.0' RCP, sq.cut end projecting, Ke= 0.500 Inlet / Outlet Invert= 906.43' / 904.00' S= 0.0122 '/' Cc= 0.900 n= 0.011 Concrete pipe, straight & clean, Flow Area= 3.14 sf Primary OutFlow Max=26.71 cfs @ 12.55 hrs HW=910.55' TW=904.64' (Dynamic Tailwater) 2=Culvert (Inlet Controls 26.71 cfs @ 8.50 fps) Secondary OutFlow Max=13.76 cfs @ 12.55 hrs HW=910.55' TW=904.64' (Dynamic Tailwater) 1=EOF (Weir Controls 13.76 cfs @ 1.59 fps) Type II 24-hr 100y 24hr Old Rainfall=6.00"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 236HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Pond 1P: East Central Temp Basin Inflow Outflow Primary Secondary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)150 140 130 120 110 100 90 80 70 60 50 40 30 20 10 0 Inflow Area=34.862 ac Peak Elev=910.55' Storage=214,513 cf 137.07 cfs 40.47 cfs 26.71 cfs 13.76 cfs Type II 24-hr 100y 24hr Old Rainfall=6.00"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 237HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Pond 11.4P: East Pond Inflow Area = 40.214 ac, 12.61% Impervious, Inflow Depth = 4.05" for 100y 24hr Old event Inflow = 48.38 cfs @ 12.45 hrs, Volume= 13.560 af Outflow = 48.25 cfs @ 12.48 hrs, Volume= 13.560 af, Atten= 0%, Lag= 2.1 min Primary = 48.25 cfs @ 12.48 hrs, Volume= 13.560 af Routed to Reach 10R : Lake Susan Drainage Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 904.65' @ 12.48 hrs Surf.Area= 13,753 sf Storage= 8,370 cf Plug-Flow detention time= 5.3 min calculated for 13.560 af (100% of inflow) Center-of-Mass det. time= 5.2 min ( 951.5 - 946.3 ) Volume Invert Avail.Storage Storage Description #1 904.00' 68,298 cf Custom Stage Data (Prismatic) Listed below (Recalc) Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 904.00 12,200 0 0 906.00 17,015 29,215 29,215 908.00 22,068 39,083 68,298 Device Routing Invert Outlet Devices #1 Primary 895.97'54.0" Round Culvert L= 232.0' RCP, square edge headwall, Ke= 0.500 Inlet / Outlet Invert= 895.97' / 894.53' S= 0.0062 '/' Cc= 0.900 n= 0.011 Concrete pipe, straight & clean, Flow Area= 15.90 sf #2 Device 1 904.00'84.0" Horiz. Orifice/Grate C= 0.600 Limited to weir flow at low heads #3 Primary 904.00'Custom Weir/Orifice, Cv= 2.62 (C= 3.28) Head (feet) 0.00 0.25 0.50 0.75 1.00 Width (feet) 0.10 7.33 11.00 14.67 22.00 Primary OutFlow Max=48.25 cfs @ 12.48 hrs HW=904.64' TW=0.00' (Dynamic Tailwater) 1=Culvert (Passes 37.25 cfs of 194.11 cfs potential flow) 2=Orifice/Grate (Weir Controls 37.25 cfs @ 2.63 fps) 3=Custom Weir/Orifice (Weir Controls 11.00 cfs @ 2.21 fps) Type II 24-hr 100y 24hr Old Rainfall=6.00"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 238HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Pond 11.4P: East Pond Inflow Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)50 45 40 35 30 25 20 15 10 5 0 Inflow Area=40.214 ac Peak Elev=904.65' Storage=8,370 cf 48.38 cfs 48.25 cfs Type II 24-hr 100y 24hr Old Rainfall=6.00"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 239HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Pond 13P: Live Storage Inflow Area = 5.779 ac, 68.19% Impervious, Inflow Depth = 5.07" for 100y 24hr Old event Inflow = 44.88 cfs @ 11.98 hrs, Volume= 2.441 af Outflow = 28.07 cfs @ 12.06 hrs, Volume= 2.420 af, Atten= 37%, Lag= 4.8 min Primary = 28.07 cfs @ 12.06 hrs, Volume= 2.420 af Routed to Pond 1P : East Central Temp Basin Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 918.45' @ 12.06 hrs Surf.Area= 6,675 sf Storage= 21,945 cf Plug-Flow detention time= 73.2 min calculated for 2.420 af (99% of inflow) Center-of-Mass det. time= 67.5 min ( 842.6 - 775.1 ) Volume Invert Avail.Storage Storage Description #1A 911.20' 6,060 cf 22.00'W x 207.00'L x 6.00'H Field A 27,324 cf Overall - 12,174 cf Embedded = 15,150 cf x 40.0% Voids #2A 911.70' 12,174 cf CMP Round 60 x 30 Inside #1 Effective Size= 60.0"W x 60.0"H => 19.63 sf x 20.00'L = 392.7 cf Overall Size= 60.0"W x 60.0"H x 20.00'L 30 Chambers in 3 Rows 20.00' Header x 19.63 sf x 1 = 392.7 cf Inside #3 916.70' 6,362 cf 30.00'D x 3.00'H Vertical Cone/Cylinder x 3 24,596 cf Total Available Storage Storage Group A created with Chamber Wizard Device Routing Invert Outlet Devices #1 Primary 911.70'21.0" Round Culvert L= 26.0' RCP, square edge headwall, Ke= 0.500 Inlet / Outlet Invert= 911.70' / 911.62' S= 0.0031 '/' Cc= 0.900 n= 0.013 Concrete pipe, straight & clean, Flow Area= 2.41 sf #2 Device 1 911.70'4.0" Vert. Orifice/Grate C= 0.600 Limited to weir flow at low heads #3 Device 1 913.70'5.0' long Sharp-Crested Rectangular Weir 2 End Contraction(s) 2.0' Crest Height Primary OutFlow Max=28.06 cfs @ 12.06 hrs HW=918.44' TW=908.86' (Dynamic Tailwater) 1=Culvert (Inlet Controls 28.06 cfs @ 11.66 fps) 2=Orifice/Grate (Passes < 1.08 cfs potential flow) 3=Sharp-Crested Rectangular Weir (Passes < 176.58 cfs potential flow) Type II 24-hr 100y 24hr Old Rainfall=6.00"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 240HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Pond 13P: Live Storage - Chamber Wizard Field A Chamber Model = CMP Round 60 (Round Corrugated Metal Pipe) Effective Size= 60.0"W x 60.0"H => 19.63 sf x 20.00'L = 392.7 cf Overall Size= 60.0"W x 60.0"H x 20.00'L 60.0" Wide + 30.0" Spacing = 90.0" C-C Row Spacing 10 Chambers/Row x 20.00' Long +5.00' Header x 1 = 205.00' Row Length +12.0" End Stone x 2 = 207.00' Base Length 3 Rows x 60.0" Wide + 30.0" Spacing x 2 + 12.0" Side Stone x 2 = 22.00' Base Width 6.0" Stone Base + 60.0" Chamber Height + 6.0" Stone Cover = 6.00' Field Height 30 Chambers x 392.7 cf + 20.00' Header x 19.63 sf = 12,173.7 cf Chamber Storage 27,324.0 cf Field - 12,173.7 cf Chambers = 15,150.3 cf Stone x 40.0% Voids = 6,060.1 cf Stone Storage Chamber Storage + Stone Storage = 18,233.8 cf = 0.419 af Overall Storage Efficiency = 66.7% Overall System Size = 207.00' x 22.00' x 6.00' 30 Chambers 1,012.0 cy Field 561.1 cy Stone Type II 24-hr 100y 24hr Old Rainfall=6.00"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 241HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Pond 13P: Live Storage Inflow Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)50 48 46 44 42 40 38 36 34 32 30 28 26 24 22 20 18 16 14 12 10 8 6 4 2 0 Inflow Area=5.779 ac Peak Elev=918.45' Storage=21,945 cf 44.88 cfs 28.07 cfs Type II 24-hr 100y 24hr Old Rainfall=6.00"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 242HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Pond 61P: Englewood Pond [44] Hint: Outlet device #2 is below defined storage [87] Warning: Oscillations may require smaller dt or Finer Routing (severity=8) [62] Hint: Exceeded Reach 61R OUTLET depth by 1.69' @ 14.56 hrs [63] Warning: Exceeded Reach 62R INLET depth by 1.32' @ 14.06 hrs Inflow Area = 70.633 ac, 7.18% Impervious, Inflow Depth = 4.09" for 100y 24hr Old event Inflow = 198.31 cfs @ 12.03 hrs, Volume= 24.064 af Outflow = 34.19 cfs @ 13.62 hrs, Volume= 23.999 af, Atten= 83%, Lag= 94.9 min Primary = 34.19 cfs @ 13.62 hrs, Volume= 23.999 af Routed to Pond 68P : East MNDOT M10 Wetland Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 894.64' @ 13.62 hrs Surf.Area= 164,316 sf Storage= 397,665 cf Plug-Flow detention time= 783.5 min calculated for 23.999 af (100% of inflow) Center-of-Mass det. time= 772.2 min ( 1,662.4 - 890.3 ) Volume Invert Avail.Storage Storage Description #1 892.00' 1,031,055 cf Custom Stage Data (Prismatic) Listed below (Recalc) Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 892.00 136,580 0 0 895.00 168,060 456,960 456,960 898.00 214,670 574,095 1,031,055 Device Routing Invert Outlet Devices #1 Primary 892.00'42.0" Round Culvert L= 29.0' RCP, square edge headwall, Ke= 0.500 Inlet / Outlet Invert= 892.00' / 891.71' S= 0.0100 '/' Cc= 0.900 n= 0.013 Concrete pipe, straight & clean, Flow Area= 9.62 sf #2 Device 1 887.63'42.0" Round Culvert L= 13.0' RCP, end-section conforming to fill, Ke= 0.500 Inlet / Outlet Invert= 887.50' / 887.63' S= -0.0100 '/' Cc= 0.900 n= 0.013 Concrete pipe, straight & clean, Flow Area= 9.62 sf Primary OutFlow Max=34.19 cfs @ 13.62 hrs HW=894.64' TW=891.90' (Dynamic Tailwater) 1=Culvert (Barrel Controls 34.19 cfs @ 6.08 fps) 2=Culvert (Passes 34.19 cfs of 75.32 cfs potential flow) Type II 24-hr 100y 24hr Old Rainfall=6.00"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 243HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Pond 61P: Englewood Pond Inflow Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)220 210 200 190 180 170 160 150 140 130 120 110 100 90 80 70 60 50 40 30 20 10 0 Inflow Area=70.633 ac Peak Elev=894.64' Storage=397,665 cf 198.31 cfs 34.19 cfs Type II 24-hr 100y 24hr Old Rainfall=6.00"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 244HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Pond 65P: Fresh MDW Inflow Area = 12.140 ac, 3.62% Impervious, Inflow Depth = 3.47" for 100y 24hr Old event Inflow = 52.86 cfs @ 12.02 hrs, Volume= 3.506 af Outflow = 9.48 cfs @ 12.41 hrs, Volume= 3.352 af, Atten= 82%, Lag= 23.9 min Primary = 9.48 cfs @ 12.41 hrs, Volume= 3.352 af Routed to Pond 68P : East MNDOT M10 Wetland Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 899.14' @ 12.41 hrs Surf.Area= 26,142 sf Storage= 70,111 cf Plug-Flow detention time= 167.5 min calculated for 3.352 af (96% of inflow) Center-of-Mass det. time= 142.0 min ( 938.8 - 796.8 ) Volume Invert Avail.Storage Storage Description #1 896.00' 123,320 cf Custom Stage Data (Prismatic) Listed below (Recalc) Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 896.00 18,540 0 0 900.00 28,230 93,540 93,540 901.00 31,330 29,780 123,320 Device Routing Invert Outlet Devices #1 Primary 892.35'12.0" Round Culvert L= 35.0' RCP, square edge headwall, Ke= 0.500 Inlet / Outlet Invert= 892.00' / 892.35' S= -0.0100 '/' Cc= 0.900 n= 0.012, Flow Area= 0.79 sf #2 Device 1 896.35'33.0" Round Culvert L= 69.0' RCP, end-section conforming to fill, Ke= 0.500 Inlet / Outlet Invert= 896.35' / 896.01' S= 0.0049 '/' Cc= 0.900 n= 0.012 Concrete pipe, finished, Flow Area= 5.94 sf Primary OutFlow Max=9.48 cfs @ 12.41 hrs HW=899.14' TW=891.18' (Dynamic Tailwater) 1=Culvert (Inlet Controls 9.48 cfs @ 12.07 fps) 2=Culvert (Passes 9.48 cfs of 28.95 cfs potential flow) Type II 24-hr 100y 24hr Old Rainfall=6.00"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 245HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Pond 65P: Fresh MDW Inflow Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)55 50 45 40 35 30 25 20 15 10 5 0 Inflow Area=12.140 ac Peak Elev=899.14' Storage=70,111 cf 52.86 cfs 9.48 cfs Type II 24-hr 100y 24hr Old Rainfall=6.00"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 246HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Pond 68P: East MNDOT M10 Wetland Inflow Area = 99.773 ac, 5.52% Impervious, Inflow Depth = 3.83" for 100y 24hr Old event Inflow = 102.49 cfs @ 12.03 hrs, Volume= 31.863 af Outflow = 3.86 cfs @ 24.73 hrs, Volume= 28.476 af, Atten= 96%, Lag= 762.2 min Primary = 3.86 cfs @ 24.73 hrs, Volume= 28.476 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 893.58' @ 24.73 hrs Surf.Area= 392,972 sf Storage= 981,362 cf Plug-Flow detention time= 3,334.4 min calculated for 28.475 af (89% of inflow) Center-of-Mass det. time= 2,908.4 min ( 4,376.8 - 1,468.3 ) Volume Invert Avail.Storage Storage Description #1 890.00' 1,574,445 cf Custom Stage Data (Prismatic) Listed below (Recalc) Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 890.00 68,660 0 0 891.00 198,790 133,725 133,725 892.00 340,250 269,520 403,245 895.00 440,550 1,171,200 1,574,445 Device Routing Invert Outlet Devices #1 Primary 890.30'18.0" Round Culvert L= 155.0' RCP, square edge headwall, Ke= 0.500 Inlet / Outlet Invert= 890.30' / 889.53' S= 0.0050 '/' Cc= 0.900 n= 0.013 Concrete pipe, straight & clean, Flow Area= 1.77 sf #2 Device 1 891.00'10.0" Vert. Orifice/Grate C= 0.600 Limited to weir flow at low heads #3 Device 2 890.50'18.0" Round Culvert L= 40.0' RCP, end-section conforming to fill, Ke= 0.500 Inlet / Outlet Invert= 890.30' / 890.50' S= -0.0050 '/' Cc= 0.900 n= 0.013 Concrete pipe, straight & clean, Flow Area= 1.77 sf Primary OutFlow Max=3.86 cfs @ 24.73 hrs HW=893.58' (Free Discharge) 1=Culvert (Passes 3.86 cfs of 10.87 cfs potential flow) 2=Orifice/Grate (Orifice Controls 3.86 cfs @ 7.08 fps) 3=Culvert (Passes 3.86 cfs of 12.65 cfs potential flow) Type II 24-hr 100y 24hr Old Rainfall=6.00"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 247HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Pond 68P: East MNDOT M10 Wetland Inflow Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)110 105 100 95 90 85 80 75 70 65 60 55 50 45 40 35 30 25 20 15 10 5 0 Inflow Area=99.773 ac Peak Elev=893.58' Storage=981,362 cf 102.49 cfs 3.86 cfs 13.1S Front Yards - North Rowhomes 13.2S Front Yards - South Rowhomes 16oS East Offsite 21S Northwest 22oS From Lyman 22S Direct to Wetland 6 25S West North 28S Avienda Pkwy 29oS North Offsite 31S West Central 33oS Offsite West - North 33S Direct to Wetland 3 34dS Offsite West Direct 34oS Offsite to West South 34S West Woods 35S Southwest 36oS Southwest Offsite 40.4S So. Villas Private Drive 41.3S South-West 42.1S South Fringe 42.2S Southeast Fringe 43.1S East Woods 43.2S Northeast Woods 44S North Woods 46S Direct to Tri. Basin 46uS Rear Yards of South Townhomes 47S Bluff Creek Pkwy - West 48S Bluff Creek Pkwy - East 52S South - Center 54S South - East 55S Direct to Bluff Creek - East Basin 20R Northwest Drainage 21R Wetland 6 Lower Reach 30R West Drainage 35R Direct Runoff 40R South Drainage 42.2R Southeast 44R Southwest 46uR South Swale - at East Property Line of THs 48R Developed Area To Wetland 4 50R Bluff Creek Drainage 21P Northwest Basin w Filtration 25P West-North w Filtration 28P Avienda Pkwy Surface Basin NOT UPDATED 31P West-Central Surface Basin w Filtration 33P Wetland 3 34P West - South (existing) 41.3P South-West Temp Basin 44P Wetland 4 46P Triangle Basin 47P Bluff Creek - West Basin - 60" PIPE 48P Bluff Creek - East Basin 52P South-Center Temp Basin 54P South-East Temp Basin Routing Diagram for Avienda Ph 3 -- 2023-05-04 Prepared by Landform Professional Services, Printed 5/4/2023 HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Subcat Reach Pond Link Bluff Creek Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 2HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Rainfall Events Listing (selected events) Event# Event Name Storm Type Curve Mode Duration (hours) B/B Depth (inches) 1 1-Year MSE 24-hr 3 Default 24.00 1 2.47 2 1.1 Inch Equiv. MSE 24-hr 3 Default 24.00 1 1.32 3 2y 24hr MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Default 24.00 1 2.87 4 10 day snowmelt MN-Snowmelt_10d_100yr Default 240.00 1 7.20 5 10y 24hr MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Default 24.00 1 4.27 6 100y 24hr MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Default 24.00 1 7.41 MSE 24-hr 3 1-Year Rainfall=2.47"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 3HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Time span=0.00-360.00 hrs, dt=0.01 hrs, 36001 points Runoff by SCS TR-20 method, UH=SCS, Weighted-CN Reach routing by Dyn-Stor-Ind method - Pond routing by Dyn-Stor-Ind method Runoff Area=19,930 sf 0.00% Impervious Runoff Depth=0.87"Subcatchment 13.1S: Front Yards - North Tc=5.0 min CN=80 Runoff=0.78 cfs 0.033 af Runoff Area=21,220 sf 0.00% Impervious Runoff Depth=0.87"Subcatchment 13.2S: Front Yards - South Tc=5.0 min CN=80 Runoff=0.83 cfs 0.035 af Runoff Area=5,069 sf 76.64% Impervious Runoff Depth=1.84"Subcatchment 16oS: East Offsite Tc=5.0 min CN=94 Runoff=0.39 cfs 0.018 af Runoff Area=283,295 sf 6.71% Impervious Runoff Depth=0.92"Subcatchment 21S: Northwest Flow Length=440' Tc=14.9 min CN=81 Runoff=7.61 cfs 0.499 af Runoff Area=10,548 sf 0.00% Impervious Runoff Depth=0.77"Subcatchment 22oS: From Lyman Flow Length=57' Slope=0.3330 '/' Tc=5.0 min CN=78 Runoff=0.36 cfs 0.016 af Runoff Area=41,685 sf 0.00% Impervious Runoff Depth=0.87"Subcatchment 22S: Direct to Wetland 6 Tc=5.0 min CN=80 Runoff=1.63 cfs 0.069 af Runoff Area=199,050 sf 58.96% Impervious Runoff Depth=1.58"Subcatchment 25S: West North Tc=10.0 min CN=91 Runoff=11.12 cfs 0.603 af Runoff Area=227,645 sf 28.54% Impervious Runoff Depth=1.15"Subcatchment 28S: Avienda Pkwy Tc=15.0 min CN=85 Runoff=7.84 cfs 0.503 af Runoff Area=5,467 sf 25.44% Impervious Runoff Depth=1.15"Subcatchment 29oS: North Offsite Tc=5.0 min CN=85 Runoff=0.28 cfs 0.012 af Runoff Area=38,150 sf 35.33% Impervious Runoff Depth=1.22"Subcatchment 31S: West Central Flow Length=345' Tc=13.2 min CN=86 Runoff=1.47 cfs 0.089 af Runoff Area=115,865 sf 17.26% Impervious Runoff Depth=0.92"Subcatchment 33oS: Offsite West - North Flow Length=431' Tc=7.3 min UI Adjusted CN=81 Runoff=4.28 cfs 0.204 af Runoff Area=74,385 sf 2.13% Impervious Runoff Depth=1.29"Subcatchment 33S: Direct to Wetland 3 Tc=12.0 min CN=87 Runoff=3.17 cfs 0.183 af Runoff Area=25,345 sf 22.45% Impervious Runoff Depth=1.09"Subcatchment 34dS: Offsite West Direct Tc=10.0 min CN=84 Runoff=0.99 cfs 0.053 af Runoff Area=32,845 sf 0.00% Impervious Runoff Depth=0.87"Subcatchment 34oS: Offsite to West South Tc=15.0 min CN=80 Runoff=0.83 cfs 0.055 af Runoff Area=105,570 sf 0.00% Impervious Runoff Depth=0.08"Subcatchment 34S: West Woods Flow Length=268' Tc=11.1 min CN=55 Runoff=0.05 cfs 0.016 af Runoff Area=165,040 sf 0.00% Impervious Runoff Depth=0.08"Subcatchment 35S: Southwest Flow Length=270' Tc=18.3 min CN=55 Runoff=0.07 cfs 0.024 af MSE 24-hr 3 1-Year Rainfall=2.47"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 4HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Runoff Area=1,628 sf 100.00% Impervious Runoff Depth=2.24"Subcatchment 36oS: Southwest Offsite Tc=5.0 min CN=98 Runoff=0.14 cfs 0.007 af Runoff Area=63,545 sf 52.82% Impervious Runoff Depth=1.50"Subcatchment 40.4S: So. Villas Private Flow Length=845' Tc=13.0 min CN=90 Runoff=3.03 cfs 0.183 af Runoff Area=157,310 sf 5.27% Impervious Runoff Depth=0.92"Subcatchment 41.3S: South-West Flow Length=285' Tc=8.9 min CN=81 Runoff=5.39 cfs 0.277 af Runoff Area=21,960 sf 0.00% Impervious Runoff Depth=0.87"Subcatchment 42.1S: South Fringe Tc=5.0 min CN=80 Runoff=0.86 cfs 0.036 af Runoff Area=8,870 sf 0.00% Impervious Runoff Depth=0.77"Subcatchment 42.2S: Southeast Fringe Tc=5.0 min CN=78 Runoff=0.30 cfs 0.013 af Runoff Area=140,400 sf 0.00% Impervious Runoff Depth=0.08"Subcatchment 43.1S: East Woods Flow Length=530' Tc=15.2 min CN=55 Runoff=0.06 cfs 0.021 af Runoff Area=76,080 sf 0.00% Impervious Runoff Depth=0.08"Subcatchment 43.2S: Northeast Woods Flow Length=623' Tc=19.5 min CN=55 Runoff=0.03 cfs 0.011 af Runoff Area=446,125 sf 0.00% Impervious Runoff Depth=0.08"Subcatchment 44S: North Woods Tc=20.0 min CN=55 Runoff=0.19 cfs 0.066 af Runoff Area=63,170 sf 0.00% Impervious Runoff Depth=0.87"Subcatchment 46S: Direct to Tri. Basin Flow Length=755' Tc=11.5 min CN=80 Runoff=1.80 cfs 0.105 af Runoff Area=57,455 sf 33.07% Impervious Runoff Depth=1.22"Subcatchment 46uS: Rear Yards of South Flow Length=755' Tc=11.5 min CN=86 Runoff=2.35 cfs 0.134 af Runoff Area=103,380 sf 49.41% Impervious Runoff Depth=1.43"Subcatchment 47S: Bluff Creek Pkwy - Tc=10.0 min CN=89 Runoff=5.26 cfs 0.283 af Runoff Area=168,700 sf 56.27% Impervious Runoff Depth=1.67"Subcatchment 48S: Bluff Creek Pkwy - Tc=10.0 min CN=92 Runoff=9.84 cfs 0.537 af Runoff Area=292,770 sf 0.00% Impervious Runoff Depth=0.87"Subcatchment 52S: South - Center Flow Length=660' Slope=0.0100 '/' Tc=27.0 min CN=80 Runoff=5.34 cfs 0.486 af Runoff Area=266,110 sf 0.00% Impervious Runoff Depth=0.87"Subcatchment 54S: South - East Flow Length=418' Tc=27.7 min CN=80 Runoff=4.79 cfs 0.442 af Runoff Area=167,215 sf 0.00% Impervious Runoff Depth=0.87"Subcatchment 55S: Direct to Bluff Creek - Tc=5.0 min CN=80 Runoff=6.53 cfs 0.278 af Inflow=1.50 cfs 1.330 afReach 20R: Northwest Drainage Outflow=1.50 cfs 1.330 af Avg. Flow Depth=0.26' Max Vel=0.57 fps Inflow=1.99 cfs 1.330 afReach 21R: Wetland 6 Lower Reach n=0.050 L=187.0' S=0.0053 '/' Capacity=3,072.14 cfs Outflow=1.50 cfs 1.330 af MSE 24-hr 3 1-Year Rainfall=2.47"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 5HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Inflow=1.97 cfs 0.631 afReach 30R: West Drainage Outflow=1.97 cfs 0.631 af Inflow=0.99 cfs 0.077 afReach 35R: Direct Runoff Outflow=0.99 cfs 0.077 af Inflow=4.24 cfs 2.922 afReach 40R: South Drainage Outflow=4.24 cfs 2.922 af Inflow=1.24 cfs 1.323 afReach 42.2R: Southeast Outflow=1.24 cfs 1.323 af Inflow=3.33 cfs 1.578 afReach 44R: Southwest Outflow=3.33 cfs 1.578 af Avg. Flow Depth=0.21' Max Vel=3.16 fps Inflow=2.35 cfs 0.134 afReach 46uR: South Swale - at East n=0.025 L=34.0' S=0.0294 '/' Capacity=11.72 cfs Outflow=2.35 cfs 0.134 af Inflow=0.83 cfs 0.318 afReach 48R: Developed Area To Wetland 4 Outflow=0.83 cfs 0.318 af Inflow=6.02 cfs 4.883 afReach 50R: Bluff Creek Drainage Outflow=6.02 cfs 4.883 af Peak Elev=893.60' Storage=33,411 cf Inflow=9.92 cfs 1.650 afPond 21P: Northwest Basin w Filtration Primary=1.22 cfs 1.245 af Secondary=0.00 cfs 0.000 af Outflow=1.22 cfs 1.245 af Peak Elev=916.46' Storage=11,041 cf Inflow=11.12 cfs 0.603 afPond 25P: West-North w Filtration Outflow=3.15 cfs 0.603 af Peak Elev=912.97' Storage=14,134 cf Inflow=8.28 cfs 0.548 afPond 28P: Avienda Pkwy Surface Basin Outflow=0.71 cfs 0.548 af Peak Elev=924.36' Storage=2,045 cf Inflow=1.47 cfs 0.089 afPond 31P: West-Central Surface Basin w Outflow=0.11 cfs 0.089 af Peak Elev=921.07' Storage=8,663 cf Inflow=7.25 cfs 0.476 afPond 33P: Wetland 3 Primary=0.93 cfs 0.476 af Secondary=0.00 cfs 0.000 af Outflow=0.93 cfs 0.476 af Peak Elev=907.57' Storage=0.009 af Inflow=1.51 cfs 0.546 afPond 34P: West - South (existing) Outflow=1.39 cfs 0.546 af Peak Elev=877.29' Storage=23,533 cf Inflow=10.80 cfs 1.185 afPond 41.3P: South-West Temp Basin Primary=1.93 cfs 1.136 af Secondary=0.50 cfs 0.048 af Outflow=2.43 cfs 1.184 af Peak Elev=884.20' Storage=219 cf Inflow=1.01 cfs 0.384 afPond 44P: Wetland 4 Outflow=1.01 cfs 0.383 af Peak Elev=888.65' Storage=3,737 cf Inflow=4.16 cfs 0.239 afPond 46P: Triangle Basin Primary=1.79 cfs 0.239 af Secondary=0.00 cfs 0.000 af Outflow=1.79 cfs 0.239 af MSE 24-hr 3 1-Year Rainfall=2.47"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 6HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Peak Elev=909.93' Storage=7,106 cf Inflow=5.86 cfs 0.318 afPond 47P: Bluff Creek - West Basin - 60" Outflow=0.83 cfs 0.318 af Peak Elev=897.72' Storage=21,539 cf Inflow=15.86 cfs 0.833 afPond 48P: Bluff Creek - East Basin Outflow=0.92 cfs 0.833 af Peak Elev=903.81' Storage=992 cf Inflow=6.93 cfs 0.669 afPond 52P: South-Center Temp Basin Outflow=6.86 cfs 0.669 af Peak Elev=880.45' Storage=18,767 cf Inflow=5.61 cfs 1.275 afPond 54P: South-East Temp Basin Primary=0.92 cfs 1.274 af Secondary=0.00 cfs 0.000 af Outflow=0.92 cfs 1.274 af Total Runoff Area = 78.187 ac Runoff Volume = 5.291 af Average Runoff Depth = 0.81" 86.61% Pervious = 67.722 ac 13.39% Impervious = 10.465 ac MSE 24-hr 3 1-Year Rainfall=2.47"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 7HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 13.1S: Front Yards - North Rowhomes Runoff = 0.78 cfs @ 12.13 hrs, Volume= 0.033 af, Depth= 0.87" Routed to Pond 28P : Avienda Pkwy Surface Basin NOT UPDATED Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MSE 24-hr 3 1-Year Rainfall=2.47" Area (sf) CN Description 19,930 80 >75% Grass cover, Good, HSG D 19,930 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 5.0 Direct Entry, Subcatchment 13.1S: Front Yards - North Rowhomes Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.85 0.8 0.75 0.7 0.65 0.6 0.55 0.5 0.45 0.4 0.35 0.3 0.25 0.2 0.15 0.1 0.05 0 MSE 24-hr 3 1-Year Rainfall=2.47" Runoff Area=19,930 sf Runoff Volume=0.033 af Runoff Depth=0.87" Tc=5.0 min CN=80 0.78 cfs MSE 24-hr 3 1-Year Rainfall=2.47"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 8HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 13.2S: Front Yards - South Rowhomes Runoff = 0.83 cfs @ 12.13 hrs, Volume= 0.035 af, Depth= 0.87" Routed to Pond 47P : Bluff Creek - West Basin - 60" PIPE Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MSE 24-hr 3 1-Year Rainfall=2.47" Area (sf) CN Description 21,220 80 >75% Grass cover, Good, HSG D 21,220 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 5.0 Direct Entry, Subcatchment 13.2S: Front Yards - South Rowhomes Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.9 0.85 0.8 0.75 0.7 0.65 0.6 0.55 0.5 0.45 0.4 0.35 0.3 0.25 0.2 0.15 0.1 0.05 0 MSE 24-hr 3 1-Year Rainfall=2.47" Runoff Area=21,220 sf Runoff Volume=0.035 af Runoff Depth=0.87" Tc=5.0 min CN=80 0.83 cfs MSE 24-hr 3 1-Year Rainfall=2.47"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 9HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 16oS: East Offsite Runoff = 0.39 cfs @ 12.12 hrs, Volume= 0.018 af, Depth= 1.84" Routed to Pond 48P : Bluff Creek - East Basin Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MSE 24-hr 3 1-Year Rainfall=2.47" Area (sf) CN Description 1,184 80 >75% Grass cover, Good, HSG D 3,885 98 Paved parking, HSG D 5,069 94 Weighted Average 1,184 23.36% Pervious Area 3,885 76.64% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 5.0 Direct Entry, Subcatchment 16oS: East Offsite Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.44 0.42 0.4 0.38 0.36 0.34 0.32 0.3 0.28 0.26 0.24 0.22 0.2 0.18 0.16 0.14 0.12 0.1 0.08 0.06 0.04 0.02 0 MSE 24-hr 3 1-Year Rainfall=2.47" Runoff Area=5,069 sf Runoff Volume=0.018 af Runoff Depth=1.84" Tc=5.0 min CN=94 0.39 cfs MSE 24-hr 3 1-Year Rainfall=2.47"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 10HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 21S: Northwest Runoff = 7.61 cfs @ 12.24 hrs, Volume= 0.499 af, Depth= 0.92" Routed to Pond 21P : Northwest Basin w Filtration Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MSE 24-hr 3 1-Year Rainfall=2.47" Area (sf) CN Description 264,275 80 >75% Grass cover, Good, HSG D 19,020 98 Unconnected roofs, HSG D 283,295 81 Weighted Average 264,275 93.29% Pervious Area 19,020 6.71% Impervious Area 19,020 100.00% Unconnected Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 10.3 100 0.0200 0.16 Sheet Flow, Grass: Short n= 0.150 P2= 2.87" 3.7 190 0.0150 0.86 Shallow Concentrated Flow, Short Grass Pasture Kv= 7.0 fps 0.9 150 0.1470 2.68 Shallow Concentrated Flow, Short Grass Pasture Kv= 7.0 fps 14.9 440 Total Subcatchment 21S: Northwest Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)8 7 6 5 4 3 2 1 0 MSE 24-hr 3 1-Year Rainfall=2.47" Runoff Area=283,295 sf Runoff Volume=0.499 af Runoff Depth=0.92" Flow Length=440' Tc=14.9 min CN=81 7.61 cfs MSE 24-hr 3 1-Year Rainfall=2.47"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 11HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 22oS: From Lyman Runoff = 0.36 cfs @ 12.13 hrs, Volume= 0.016 af, Depth= 0.77" Routed to Reach 21R : Wetland 6 Lower Reach Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MSE 24-hr 3 1-Year Rainfall=2.47" Area (sf) CN Description 10,548 78 Meadow, non-grazed, HSG D 10,548 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 2.1 57 0.3330 0.44 Sheet Flow, Grass: Short n= 0.150 P2= 2.87" 2.9 Direct Entry, Make up to 5 minutes 5.0 57 Total Subcatchment 22oS: From Lyman Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.4 0.38 0.36 0.34 0.32 0.3 0.28 0.26 0.24 0.22 0.2 0.18 0.16 0.14 0.12 0.1 0.08 0.06 0.04 0.02 0 MSE 24-hr 3 1-Year Rainfall=2.47" Runoff Area=10,548 sf Runoff Volume=0.016 af Runoff Depth=0.77" Flow Length=57' Slope=0.3330 '/' Tc=5.0 min CN=78 0.36 cfs MSE 24-hr 3 1-Year Rainfall=2.47"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 12HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 22S: Direct to Wetland 6 Runoff = 1.63 cfs @ 12.13 hrs, Volume= 0.069 af, Depth= 0.87" Routed to Reach 21R : Wetland 6 Lower Reach Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MSE 24-hr 3 1-Year Rainfall=2.47" Area (sf) CN Description 41,685 80 >75% Grass cover, Good, HSG D 41,685 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 5.0 Direct Entry, Subcatchment 22S: Direct to Wetland 6 Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)1 0 MSE 24-hr 3 1-Year Rainfall=2.47" Runoff Area=41,685 sf Runoff Volume=0.069 af Runoff Depth=0.87" Tc=5.0 min CN=80 1.63 cfs MSE 24-hr 3 1-Year Rainfall=2.47"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 13HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 25S: West North Runoff = 11.12 cfs @ 12.17 hrs, Volume= 0.603 af, Depth= 1.58" Routed to Pond 25P : West-North w Filtration Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MSE 24-hr 3 1-Year Rainfall=2.47" Area (sf) CN Description 81,685 80 >75% Grass cover, Good, HSG D 99,930 98 Paved parking, HSG D 17,435 98 Unconnected roofs, HSG D 199,050 91 Weighted Average 81,685 41.04% Pervious Area 117,365 58.96% Impervious Area 17,435 14.86% Unconnected Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 10.0 Direct Entry, Subcatchment 25S: West North Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)12 11 10 9 8 7 6 5 4 3 2 1 0 MSE 24-hr 3 1-Year Rainfall=2.47" Runoff Area=199,050 sf Runoff Volume=0.603 af Runoff Depth=1.58" Tc=10.0 min CN=91 11.12 cfs MSE 24-hr 3 1-Year Rainfall=2.47"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 14HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 28S: Avienda Pkwy Runoff = 7.84 cfs @ 12.24 hrs, Volume= 0.503 af, Depth= 1.15" Routed to Pond 28P : Avienda Pkwy Surface Basin NOT UPDATED Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MSE 24-hr 3 1-Year Rainfall=2.47" Area (sf) CN Description 162,665 80 >75% Grass cover, Good, HSG D 64,980 98 Paved roads w/curbs & sewers, HSG D 227,645 85 Weighted Average 162,665 71.46% Pervious Area 64,980 28.54% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 15.0 Direct Entry, Subcatchment 28S: Avienda Pkwy Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)8 7 6 5 4 3 2 1 0 MSE 24-hr 3 1-Year Rainfall=2.47" Runoff Area=227,645 sf Runoff Volume=0.503 af Runoff Depth=1.15" Tc=15.0 min CN=85 7.84 cfs MSE 24-hr 3 1-Year Rainfall=2.47"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 15HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 29oS: North Offsite Runoff = 0.28 cfs @ 12.13 hrs, Volume= 0.012 af, Depth= 1.15" Routed to Pond 28P : Avienda Pkwy Surface Basin NOT UPDATED Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MSE 24-hr 3 1-Year Rainfall=2.47" Area (sf) CN Description 4,076 80 >75% Grass cover, Good, HSG D 1,391 98 Paved parking, HSG D 5,467 85 Weighted Average 4,076 74.56% Pervious Area 1,391 25.44% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 5.0 Direct Entry, Subcatchment 29oS: North Offsite Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.3 0.28 0.26 0.24 0.22 0.2 0.18 0.16 0.14 0.12 0.1 0.08 0.06 0.04 0.02 0 MSE 24-hr 3 1-Year Rainfall=2.47" Runoff Area=5,467 sf Runoff Volume=0.012 af Runoff Depth=1.15" Tc=5.0 min CN=85 0.28 cfs MSE 24-hr 3 1-Year Rainfall=2.47"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 16HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 31S: West Central Runoff = 1.47 cfs @ 12.22 hrs, Volume= 0.089 af, Depth= 1.22" Routed to Pond 31P : West-Central Surface Basin w Filtration Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MSE 24-hr 3 1-Year Rainfall=2.47" Area (sf) CN Description 24,670 80 >75% Grass cover, Good, HSG D 9,870 98 Unconnected roofs, HSG D * 3,610 98 Connected roofs, HSG D 38,150 86 Weighted Average 24,670 64.67% Pervious Area 13,480 35.33% Impervious Area 9,870 73.22% Unconnected Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 10.3 100 0.0200 0.16 Sheet Flow, Grass: Short n= 0.150 P2= 2.87" 2.9 245 0.0410 1.42 Shallow Concentrated Flow, Short Grass Pasture Kv= 7.0 fps 13.2 345 Total Subcatchment 31S: West Central Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)1 0 MSE 24-hr 3 1-Year Rainfall=2.47" Runoff Area=38,150 sf Runoff Volume=0.089 af Runoff Depth=1.22" Flow Length=345' Tc=13.2 min CN=86 1.47 cfs MSE 24-hr 3 1-Year Rainfall=2.47"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 17HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 33oS: Offsite West - North Runoff = 4.28 cfs @ 12.15 hrs, Volume= 0.204 af, Depth= 0.92" Routed to Pond 33P : Wetland 3 Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MSE 24-hr 3 1-Year Rainfall=2.47" Area (sf) CN Adj Description 20,000 98 Unconnected roofs, HSG D 71,000 80 >75% Grass cover, Good, HSG D * 12,720 96 Wetland, Good, HSG D 12,145 58 Meadow, non-grazed, HSG B 115,865 83 81 Weighted Average, UI Adjusted 95,865 82.74% Pervious Area 20,000 17.26% Impervious Area 20,000 100.00% Unconnected Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 5.0 25 0.0200 0.08 Sheet Flow, Grass: Dense n= 0.240 P2= 2.87" 2.3 406 0.0390 2.96 Shallow Concentrated Flow, Grassed Waterway Kv= 15.0 fps 7.3 431 Total Subcatchment 33oS: Offsite West - North Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)4 3 2 1 0 MSE 24-hr 3 1-Year Rainfall=2.47" Runoff Area=115,865 sf Runoff Volume=0.204 af Runoff Depth=0.92" Flow Length=431' Tc=7.3 min UI Adjusted CN=81 4.28 cfs MSE 24-hr 3 1-Year Rainfall=2.47"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 18HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 33S: Direct to Wetland 3 Runoff = 3.17 cfs @ 12.20 hrs, Volume= 0.183 af, Depth= 1.29" Routed to Pond 33P : Wetland 3 Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MSE 24-hr 3 1-Year Rainfall=2.47" Area (sf) CN Description * 29,365 96 Wetland, Good, HSG D 43,435 80 >75% Grass cover, Good, HSG D 1,585 98 Unconnected roofs, HSG D 74,385 87 Weighted Average 72,800 97.87% Pervious Area 1,585 2.13% Impervious Area 1,585 100.00% Unconnected Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 12.0 Direct Entry, Subcatchment 33S: Direct to Wetland 3 Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)3 2 1 0 MSE 24-hr 3 1-Year Rainfall=2.47" Runoff Area=74,385 sf Runoff Volume=0.183 af Runoff Depth=1.29" Tc=12.0 min CN=87 3.17 cfs MSE 24-hr 3 1-Year Rainfall=2.47"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 19HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 34dS: Offsite West Direct Runoff = 0.99 cfs @ 12.18 hrs, Volume= 0.053 af, Depth= 1.09" Routed to Reach 35R : Direct Runoff Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MSE 24-hr 3 1-Year Rainfall=2.47" Area (sf) CN Description 19,655 80 >75% Grass cover, Good, HSG D 5,690 98 Paved roads w/curbs & sewers, HSG D 25,345 84 Weighted Average 19,655 77.55% Pervious Area 5,690 22.45% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 10.0 Direct Entry, Subcatchment 34dS: Offsite West Direct Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)1 0 MSE 24-hr 3 1-Year Rainfall=2.47" Runoff Area=25,345 sf Runoff Volume=0.053 af Runoff Depth=1.09" Tc=10.0 min CN=84 0.99 cfs MSE 24-hr 3 1-Year Rainfall=2.47"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 20HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 34oS: Offsite to West South Runoff = 0.83 cfs @ 12.25 hrs, Volume= 0.055 af, Depth= 0.87" Routed to Pond 34P : West - South (existing) Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MSE 24-hr 3 1-Year Rainfall=2.47" Area (sf) CN Description 32,845 80 >75% Grass cover, Good, HSG D 32,845 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 15.0 Direct Entry, Subcatchment 34oS: Offsite to West South Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.9 0.85 0.8 0.75 0.7 0.65 0.6 0.55 0.5 0.45 0.4 0.35 0.3 0.25 0.2 0.15 0.1 0.05 0 MSE 24-hr 3 1-Year Rainfall=2.47" Runoff Area=32,845 sf Runoff Volume=0.055 af Runoff Depth=0.87" Tc=15.0 min CN=80 0.83 cfs MSE 24-hr 3 1-Year Rainfall=2.47"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 21HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 34S: West Woods Runoff = 0.05 cfs @ 12.58 hrs, Volume= 0.016 af, Depth= 0.08" Routed to Pond 34P : West - South (existing) Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MSE 24-hr 3 1-Year Rainfall=2.47" Area (sf) CN Description 105,570 55 Woods, Good, HSG B 105,570 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 8.4 50 0.0600 0.10 Sheet Flow, Woods: Light underbrush n= 0.400 P2= 2.87" 2.7 218 0.0710 1.33 Shallow Concentrated Flow, Woodland Kv= 5.0 fps 11.1 268 Total Subcatchment 34S: West Woods Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.05 0.045 0.04 0.035 0.03 0.025 0.02 0.015 0.01 0.005 0 MSE 24-hr 3 1-Year Rainfall=2.47" Runoff Area=105,570 sf Runoff Volume=0.016 af Runoff Depth=0.08" Flow Length=268' Tc=11.1 min CN=55 0.05 cfs MSE 24-hr 3 1-Year Rainfall=2.47"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 22HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 35S: Southwest Runoff = 0.07 cfs @ 13.12 hrs, Volume= 0.024 af, Depth= 0.08" Routed to Reach 35R : Direct Runoff Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MSE 24-hr 3 1-Year Rainfall=2.47" Area (sf) CN Description 165,040 55 Woods, Good, HSG B 165,040 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 16.0 75 0.0270 0.08 Sheet Flow, Woods: Light underbrush n= 0.400 P2= 2.87" 2.3 195 0.0820 1.43 Shallow Concentrated Flow, Woodland Kv= 5.0 fps 18.3 270 Total Subcatchment 35S: Southwest Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.075 0.07 0.065 0.06 0.055 0.05 0.045 0.04 0.035 0.03 0.025 0.02 0.015 0.01 0.005 0 MSE 24-hr 3 1-Year Rainfall=2.47" Runoff Area=165,040 sf Runoff Volume=0.024 af Runoff Depth=0.08" Flow Length=270' Tc=18.3 min CN=55 0.07 cfs MSE 24-hr 3 1-Year Rainfall=2.47"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 23HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 36oS: Southwest Offsite Runoff = 0.14 cfs @ 12.12 hrs, Volume= 0.007 af, Depth= 2.24" Routed to Reach 30R : West Drainage Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MSE 24-hr 3 1-Year Rainfall=2.47" Area (sf) CN Description 1,628 98 Paved parking, HSG D 1,628 100.00% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 5.0 Direct Entry, Subcatchment 36oS: Southwest Offsite Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.15 0.14 0.13 0.12 0.11 0.1 0.09 0.08 0.07 0.06 0.05 0.04 0.03 0.02 0.01 0 MSE 24-hr 3 1-Year Rainfall=2.47" Runoff Area=1,628 sf Runoff Volume=0.007 af Runoff Depth=2.24" Tc=5.0 min CN=98 0.14 cfs MSE 24-hr 3 1-Year Rainfall=2.47"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 24HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 40.4S: So. Villas Private Drive Runoff = 3.03 cfs @ 12.21 hrs, Volume= 0.183 af, Depth= 1.50" Routed to Pond 52P : South-Center Temp Basin Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MSE 24-hr 3 1-Year Rainfall=2.47" Area (sf) CN Description 29,980 80 >75% Grass cover, Good, HSG D 33,565 98 Paved parking, HSG D 63,545 90 Weighted Average 29,980 47.18% Pervious Area 33,565 52.82% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 8.3 70 0.0430 0.14 Sheet Flow, Lawn Grass: Dense n= 0.240 P2= 2.87" 4.7 775 0.0180 2.72 Shallow Concentrated Flow, Street Flow Paved Kv= 20.3 fps 13.0 845 Total Subcatchment 40.4S: So. Villas Private Drive Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)3 2 1 0 MSE 24-hr 3 1-Year Rainfall=2.47" Runoff Area=63,545 sf Runoff Volume=0.183 af Runoff Depth=1.50" Flow Length=845' Tc=13.0 min CN=90 3.03 cfs MSE 24-hr 3 1-Year Rainfall=2.47"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 25HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 41.3S: South-West Runoff = 5.39 cfs @ 12.17 hrs, Volume= 0.277 af, Depth= 0.92" Routed to Pond 41.3P : South-West Temp Basin Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MSE 24-hr 3 1-Year Rainfall=2.47" Area (sf) CN Description 149,020 80 >75% Grass cover, Good, HSG D * 8,290 100 Water 157,310 81 Weighted Average 149,020 94.73% Pervious Area 8,290 5.27% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 7.5 100 0.0450 0.22 Sheet Flow, Grass: Short n= 0.150 P2= 2.87" 1.0 90 0.0450 1.48 Shallow Concentrated Flow, Short Grass Pasture Kv= 7.0 fps 0.4 95 0.3333 4.04 Shallow Concentrated Flow, Short Grass Pasture Kv= 7.0 fps 8.9 285 Total Subcatchment 41.3S: South-West Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)6 5 4 3 2 1 0 MSE 24-hr 3 1-Year Rainfall=2.47" Runoff Area=157,310 sf Runoff Volume=0.277 af Runoff Depth=0.92" Flow Length=285' Tc=8.9 min CN=81 5.39 cfs MSE 24-hr 3 1-Year Rainfall=2.47"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 26HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 42.1S: South Fringe Runoff = 0.86 cfs @ 12.13 hrs, Volume= 0.036 af, Depth= 0.87" Routed to Reach 42.2R : Southeast Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MSE 24-hr 3 1-Year Rainfall=2.47" Area (sf) CN Description 21,960 80 >75% Grass cover, Good, HSG D 21,960 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 5.0 Direct Entry, Subcatchment 42.1S: South Fringe Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.95 0.9 0.85 0.8 0.75 0.7 0.65 0.6 0.55 0.5 0.45 0.4 0.35 0.3 0.25 0.2 0.15 0.1 0.05 0 MSE 24-hr 3 1-Year Rainfall=2.47" Runoff Area=21,960 sf Runoff Volume=0.036 af Runoff Depth=0.87" Tc=5.0 min CN=80 0.86 cfs MSE 24-hr 3 1-Year Rainfall=2.47"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 27HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 42.2S: Southeast Fringe Runoff = 0.30 cfs @ 12.13 hrs, Volume= 0.013 af, Depth= 0.77" Routed to Reach 42.2R : Southeast Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MSE 24-hr 3 1-Year Rainfall=2.47" Area (sf) CN Description 8,870 78 Meadow, non-grazed, HSG D 8,870 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 5.0 Direct Entry, Subcatchment 42.2S: Southeast Fringe Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.34 0.32 0.3 0.28 0.26 0.24 0.22 0.2 0.18 0.16 0.14 0.12 0.1 0.08 0.06 0.04 0.02 0 MSE 24-hr 3 1-Year Rainfall=2.47" Runoff Area=8,870 sf Runoff Volume=0.013 af Runoff Depth=0.77" Tc=5.0 min CN=78 0.30 cfs MSE 24-hr 3 1-Year Rainfall=2.47"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 28HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 43.1S: East Woods Runoff = 0.06 cfs @ 12.65 hrs, Volume= 0.021 af, Depth= 0.08" Routed to Reach 40R : South Drainage Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MSE 24-hr 3 1-Year Rainfall=2.47" Area (sf) CN Description 140,400 55 Woods, Good, HSG B 140,400 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 11.1 75 0.0670 0.11 Sheet Flow, Woods: Light underbrush n= 0.400 P2= 2.87" 4.1 455 0.1380 1.86 Shallow Concentrated Flow, Woodland Kv= 5.0 fps 15.2 530 Total Subcatchment 43.1S: East Woods Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.065 0.06 0.055 0.05 0.045 0.04 0.035 0.03 0.025 0.02 0.015 0.01 0.005 0 MSE 24-hr 3 1-Year Rainfall=2.47" Runoff Area=140,400 sf Runoff Volume=0.021 af Runoff Depth=0.08" Flow Length=530' Tc=15.2 min CN=55 0.06 cfs MSE 24-hr 3 1-Year Rainfall=2.47"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 29HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 43.2S: Northeast Woods Runoff = 0.03 cfs @ 13.15 hrs, Volume= 0.011 af, Depth= 0.08" Routed to Reach 44R : Southwest Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MSE 24-hr 3 1-Year Rainfall=2.47" Area (sf) CN Description 76,080 55 Woods, Good, HSG B 76,080 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 14.2 100 0.0650 0.12 Sheet Flow, Woods: Light underbrush n= 0.400 P2= 2.87" 5.3 523 0.1080 1.64 Shallow Concentrated Flow, Woodland Kv= 5.0 fps 19.5 623 Total Subcatchment 43.2S: Northeast Woods Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.036 0.034 0.032 0.03 0.028 0.026 0.024 0.022 0.02 0.018 0.016 0.014 0.012 0.01 0.008 0.006 0.004 0.002 0 MSE 24-hr 3 1-Year Rainfall=2.47" Runoff Area=76,080 sf Runoff Volume=0.011 af Runoff Depth=0.08" Flow Length=623' Tc=19.5 min CN=55 0.03 cfs MSE 24-hr 3 1-Year Rainfall=2.47"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 30HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 44S: North Woods Runoff = 0.19 cfs @ 13.13 hrs, Volume= 0.066 af, Depth= 0.08" Routed to Pond 44P : Wetland 4 Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MSE 24-hr 3 1-Year Rainfall=2.47" Area (sf) CN Description 446,125 55 Woods, Good, HSG B 446,125 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 20.0 Direct Entry, Subcatchment 44S: North Woods Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.21 0.2 0.19 0.18 0.17 0.16 0.15 0.14 0.13 0.12 0.11 0.1 0.09 0.08 0.07 0.06 0.05 0.04 0.03 0.02 0.01 0 MSE 24-hr 3 1-Year Rainfall=2.47" Runoff Area=446,125 sf Runoff Volume=0.066 af Runoff Depth=0.08" Tc=20.0 min CN=55 0.19 cfs MSE 24-hr 3 1-Year Rainfall=2.47"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 31HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 46S: Direct to Tri. Basin Runoff = 1.80 cfs @ 12.20 hrs, Volume= 0.105 af, Depth= 0.87" Routed to Pond 46P : Triangle Basin Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MSE 24-hr 3 1-Year Rainfall=2.47" Area (sf) CN Description 63,170 80 >75% Grass cover, Good, HSG D 63,170 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 3.4 40 0.0500 0.19 Sheet Flow, Grass: Short n= 0.150 P2= 2.87" 8.1 715 0.0440 1.47 Shallow Concentrated Flow, Short Grass Pasture Kv= 7.0 fps 11.5 755 Total Subcatchment 46S: Direct to Tri. Basin Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)2 1 0 MSE 24-hr 3 1-Year Rainfall=2.47" Runoff Area=63,170 sf Runoff Volume=0.105 af Runoff Depth=0.87" Flow Length=755' Tc=11.5 min CN=80 1.80 cfs MSE 24-hr 3 1-Year Rainfall=2.47"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 32HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 46uS: Rear Yards of South Townhomes Runoff = 2.35 cfs @ 12.20 hrs, Volume= 0.134 af, Depth= 1.22" Routed to Reach 46uR : South Swale - at East Property Line of THs Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MSE 24-hr 3 1-Year Rainfall=2.47" Area (sf) CN Description 38,455 80 >75% Grass cover, Good, HSG D 19,000 98 Unconnected roofs, HSG D 57,455 86 Weighted Average 38,455 66.93% Pervious Area 19,000 33.07% Impervious Area 19,000 100.00% Unconnected Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 3.4 40 0.0500 0.19 Sheet Flow, Grass: Short n= 0.150 P2= 2.87" 8.1 715 0.0440 1.47 Shallow Concentrated Flow, Short Grass Pasture Kv= 7.0 fps 11.5 755 Total Subcatchment 46uS: Rear Yards of South Townhomes Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)2 1 0 MSE 24-hr 3 1-Year Rainfall=2.47" Runoff Area=57,455 sf Runoff Volume=0.134 af Runoff Depth=1.22" Flow Length=755' Tc=11.5 min CN=86 2.35 cfs MSE 24-hr 3 1-Year Rainfall=2.47"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 33HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 47S: Bluff Creek Pkwy - West Runoff = 5.26 cfs @ 12.18 hrs, Volume= 0.283 af, Depth= 1.43" Routed to Pond 47P : Bluff Creek - West Basin - 60" PIPE Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MSE 24-hr 3 1-Year Rainfall=2.47" Area (sf) CN Description * 52,305 80 >75% Grass cover, Good, HSG D 51,075 98 Paved roads w/curbs & sewers, HSG D 103,380 89 Weighted Average 52,305 50.59% Pervious Area 51,075 49.41% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 10.0 Direct Entry, Subcatchment 47S: Bluff Creek Pkwy - West Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)5 4 3 2 1 0 MSE 24-hr 3 1-Year Rainfall=2.47" Runoff Area=103,380 sf Runoff Volume=0.283 af Runoff Depth=1.43" Tc=10.0 min CN=89 5.26 cfs MSE 24-hr 3 1-Year Rainfall=2.47"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 34HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 48S: Bluff Creek Pkwy - East Runoff = 9.84 cfs @ 12.17 hrs, Volume= 0.537 af, Depth= 1.67" Routed to Pond 48P : Bluff Creek - East Basin Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MSE 24-hr 3 1-Year Rainfall=2.47" Area (sf) CN Description * 73,780 84 >75% Grass cover, Good, HSG D 94,920 98 Paved roads w/curbs & sewers, HSG D 168,700 92 Weighted Average 73,780 43.73% Pervious Area 94,920 56.27% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 10.0 Direct Entry, Subcatchment 48S: Bluff Creek Pkwy - East Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)11 10 9 8 7 6 5 4 3 2 1 0 MSE 24-hr 3 1-Year Rainfall=2.47" Runoff Area=168,700 sf Runoff Volume=0.537 af Runoff Depth=1.67" Tc=10.0 min CN=92 9.84 cfs MSE 24-hr 3 1-Year Rainfall=2.47"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 35HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 52S: South - Center Runoff = 5.34 cfs @ 12.40 hrs, Volume= 0.486 af, Depth= 0.87" Routed to Pond 52P : South-Center Temp Basin Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MSE 24-hr 3 1-Year Rainfall=2.47" Area (sf) CN Description 292,770 80 >75% Grass cover, Good, HSG D 292,770 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 13.7 100 0.0100 0.12 Sheet Flow, Grass: Short n= 0.150 P2= 2.87" 13.3 560 0.0100 0.70 Shallow Concentrated Flow, Short Grass Pasture Kv= 7.0 fps 27.0 660 Total Subcatchment 52S: South - Center Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)5 4 3 2 1 0 MSE 24-hr 3 1-Year Rainfall=2.47" Runoff Area=292,770 sf Runoff Volume=0.486 af Runoff Depth=0.87" Flow Length=660' Slope=0.0100 '/' Tc=27.0 min CN=80 5.34 cfs MSE 24-hr 3 1-Year Rainfall=2.47"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 36HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 54S: South - East Runoff = 4.79 cfs @ 12.41 hrs, Volume= 0.442 af, Depth= 0.87" Routed to Pond 54P : South-East Temp Basin Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MSE 24-hr 3 1-Year Rainfall=2.47" Area (sf) CN Description 266,110 80 >75% Grass cover, Good, HSG D 266,110 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 14.3 168 0.0250 0.20 Sheet Flow, Grass: Short n= 0.150 P2= 2.87" 8.4 250 0.0050 0.49 Shallow Concentrated Flow, Short Grass Pasture Kv= 7.0 fps 5.0 Direct Entry, Pipe flow 27.7 418 Total Subcatchment 54S: South - East Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)5 4 3 2 1 0 MSE 24-hr 3 1-Year Rainfall=2.47" Runoff Area=266,110 sf Runoff Volume=0.442 af Runoff Depth=0.87" Flow Length=418' Tc=27.7 min CN=80 4.79 cfs MSE 24-hr 3 1-Year Rainfall=2.47"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 37HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 55S: Direct to Bluff Creek - East Basin Runoff = 6.53 cfs @ 12.13 hrs, Volume= 0.278 af, Depth= 0.87" Routed to Pond 48P : Bluff Creek - East Basin Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MSE 24-hr 3 1-Year Rainfall=2.47" Area (sf) CN Description 167,215 80 >75% Grass cover, Good, HSG D 167,215 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 5.0 Direct Entry, Subcatchment 55S: Direct to Bluff Creek - East Basin Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)7 6 5 4 3 2 1 0 MSE 24-hr 3 1-Year Rainfall=2.47" Runoff Area=167,215 sf Runoff Volume=0.278 af Runoff Depth=0.87" Tc=5.0 min CN=80 6.53 cfs MSE 24-hr 3 1-Year Rainfall=2.47"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 38HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Reach 20R: Northwest Drainage [40] Hint: Not Described (Outflow=Inflow) Inflow Area = 18.081 ac, 25.74% Impervious, Inflow Depth = 0.88" for 1-Year event Inflow = 1.50 cfs @ 12.17 hrs, Volume= 1.330 af Outflow = 1.50 cfs @ 12.17 hrs, Volume= 1.330 af, Atten= 0%, Lag= 0.0 min Routed to Reach 50R : Bluff Creek Drainage Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Reach 20R: Northwest Drainage Inflow Outflow Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)1 0 Inflow Area=18.081 ac 1.50 cfs 1.50 cfs MSE 24-hr 3 1-Year Rainfall=2.47"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 39HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Reach 21R: Wetland 6 Lower Reach Inflow Area = 18.081 ac, 25.74% Impervious, Inflow Depth = 0.88" for 1-Year event Inflow = 1.99 cfs @ 12.13 hrs, Volume= 1.330 af Outflow = 1.50 cfs @ 12.17 hrs, Volume= 1.330 af, Atten= 25%, Lag= 2.4 min Routed to Reach 20R : Northwest Drainage Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Max. Velocity= 0.57 fps, Min. Travel Time= 5.5 min Avg. Velocity = 0.23 fps, Avg. Travel Time= 13.7 min Peak Storage= 493 cf @ 12.17 hrs Average Depth at Peak Storage= 0.26' , Surface Width= 19.82' Bank-Full Depth= 5.99' Flow Area= 570.1 sf, Capacity= 3,072.14 cfs Custom cross-section, Length= 187.0' Slope= 0.0053 '/' (102 Elevation Intervals) Constant n= 0.050 Scattered brush, heavy weeds Inlet Invert= 885.00', Outlet Invert= 884.00' ‡ Offset Elevation Chan.Depth (feet) (feet) (feet) 0.00 890.40 0.00 43.10 886.55 3.85 85.60 884.41 5.99 126.20 885.14 5.26 145.10 890.40 0.00 Depth End Area Perim. Width Storage Discharge (feet) (sq-ft) (feet) (feet) (cubic-feet) (cfs) 0.00 0.0 0.0 0.0 0 0.00 0.73 20.1 55.1 55.1 3,761 22.32 2.14 121.1 88.4 88.2 22,648 324.64 5.99 570.1 146.1 145.1 106,618 3,072.14 MSE 24-hr 3 1-Year Rainfall=2.47"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 40HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Reach 21R: Wetland 6 Lower Reach Inflow Outflow Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)2 1 0 Inflow Area=18.081 ac Avg. Flow Depth=0.26' Max Vel=0.57 fps n=0.050 L=187.0' S=0.0053 '/' Capacity=3,072.14 cfs 1.99 cfs 1.50 cfs MSE 24-hr 3 1-Year Rainfall=2.47"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 41HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Reach 30R: West Drainage [40] Hint: Not Described (Outflow=Inflow) Inflow Area = 12.829 ac, 7.58% Impervious, Inflow Depth = 0.59" for 1-Year event Inflow = 1.97 cfs @ 12.23 hrs, Volume= 0.631 af Outflow = 1.97 cfs @ 12.23 hrs, Volume= 0.631 af, Atten= 0%, Lag= 0.0 min Routed to Reach 50R : Bluff Creek Drainage Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Reach 30R: West Drainage Inflow Outflow Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)2 1 0 Inflow Area=12.829 ac 1.97 cfs 1.97 cfs MSE 24-hr 3 1-Year Rainfall=2.47"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 42HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Reach 35R: Direct Runoff [40] Hint: Not Described (Outflow=Inflow) Inflow Area = 4.371 ac, 2.99% Impervious, Inflow Depth = 0.21" for 1-Year event Inflow = 0.99 cfs @ 12.18 hrs, Volume= 0.077 af Outflow = 0.99 cfs @ 12.18 hrs, Volume= 0.077 af, Atten= 0%, Lag= 0.0 min Routed to Reach 30R : West Drainage Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Reach 35R: Direct Runoff Inflow Outflow Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)1 0 Inflow Area=4.371 ac 0.99 cfs 0.99 cfs MSE 24-hr 3 1-Year Rainfall=2.47"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 43HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Reach 40R: South Drainage [40] Hint: Not Described (Outflow=Inflow) Inflow Area = 47.277 ac, 10.23% Impervious, Inflow Depth = 0.74" for 1-Year event Inflow = 4.24 cfs @ 13.15 hrs, Volume= 2.922 af Outflow = 4.24 cfs @ 13.15 hrs, Volume= 2.922 af, Atten= 0%, Lag= 0.0 min Routed to Reach 50R : Bluff Creek Drainage Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Reach 40R: South Drainage Inflow Outflow Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)4 3 2 1 0 Inflow Area=47.277 ac 4.24 cfs 4.24 cfs MSE 24-hr 3 1-Year Rainfall=2.47"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 44HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Reach 42.2R: Southeast [40] Hint: Not Described (Outflow=Inflow) Inflow Area = 14.645 ac, 15.49% Impervious, Inflow Depth = 1.08" for 1-Year event Inflow = 1.24 cfs @ 12.13 hrs, Volume= 1.323 af Outflow = 1.24 cfs @ 12.13 hrs, Volume= 1.323 af, Atten= 0%, Lag= 0.0 min Routed to Reach 40R : South Drainage Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Reach 42.2R: Southeast Inflow Outflow Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)1 0 Inflow Area=14.645 ac 1.24 cfs 1.24 cfs MSE 24-hr 3 1-Year Rainfall=2.47"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 45HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Reach 44R: Southwest [40] Hint: Not Described (Outflow=Inflow) Inflow Area = 29.409 ac, 8.74% Impervious, Inflow Depth = 0.64" for 1-Year event Inflow = 3.33 cfs @ 13.14 hrs, Volume= 1.578 af Outflow = 3.33 cfs @ 13.14 hrs, Volume= 1.578 af, Atten= 0%, Lag= 0.0 min Routed to Reach 40R : South Drainage Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Reach 44R: Southwest Inflow Outflow Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)3 2 1 0 Inflow Area=29.409 ac 3.33 cfs 3.33 cfs MSE 24-hr 3 1-Year Rainfall=2.47"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 46HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Reach 46uR: South Swale - at East Property Line of THs Inflow Area = 1.319 ac, 33.07% Impervious, Inflow Depth = 1.22" for 1-Year event Inflow = 2.35 cfs @ 12.20 hrs, Volume= 0.134 af Outflow = 2.35 cfs @ 12.20 hrs, Volume= 0.134 af, Atten= 0%, Lag= 0.1 min Routed to Pond 46P : Triangle Basin Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Max. Velocity= 3.16 fps, Min. Travel Time= 0.2 min Avg. Velocity = 0.80 fps, Avg. Travel Time= 0.7 min Peak Storage= 25 cf @ 12.20 hrs Average Depth at Peak Storage= 0.21' , Surface Width= 4.23' Bank-Full Depth= 0.50' Flow Area= 2.3 sf, Capacity= 11.72 cfs 3.00' x 0.50' deep channel, n= 0.025 Short grass Side Slope Z-value= 3.0 '/' Top Width= 6.00' Length= 34.0' Slope= 0.0294 '/' Inlet Invert= 894.00', Outlet Invert= 893.00' ‡ Reach 46uR: South Swale - at East Property Line of THs Inflow Outflow Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)2 1 0 Inflow Area=1.319 ac Avg. Flow Depth=0.21' Max Vel=3.16 fps n=0.025 L=34.0' S=0.0294 '/' Capacity=11.72 cfs 2.35 cfs 2.35 cfs MSE 24-hr 3 1-Year Rainfall=2.47"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 47HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Reach 48R: Developed Area To Wetland 4 [40] Hint: Not Described (Outflow=Inflow) Inflow Area = 2.860 ac, 40.99% Impervious, Inflow Depth = 1.33" for 1-Year event Inflow = 0.83 cfs @ 12.66 hrs, Volume= 0.318 af Outflow = 0.83 cfs @ 12.66 hrs, Volume= 0.318 af, Atten= 0%, Lag= 0.0 min Routed to Pond 44P : Wetland 4 Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Reach 48R: Developed Area To Wetland 4 Inflow Outflow Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.9 0.85 0.8 0.75 0.7 0.65 0.6 0.55 0.5 0.45 0.4 0.35 0.3 0.25 0.2 0.15 0.1 0.05 0 Inflow Area=2.860 ac 0.83 cfs 0.83 cfs MSE 24-hr 3 1-Year Rainfall=2.47"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 48HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Reach 50R: Bluff Creek Drainage [40] Hint: Not Described (Outflow=Inflow) Inflow Area = 78.187 ac, 13.39% Impervious, Inflow Depth = 0.75" for 1-Year event Inflow = 6.02 cfs @ 13.35 hrs, Volume= 4.883 af Outflow = 6.02 cfs @ 13.35 hrs, Volume= 4.883 af, Atten= 0%, Lag= 0.0 min Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Reach 50R: Bluff Creek Drainage Inflow Outflow Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)6 5 4 3 2 1 0 Inflow Area=78.187 ac 6.02 cfs 6.02 cfs MSE 24-hr 3 1-Year Rainfall=2.47"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 49HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Pond 21P: Northwest Basin w Filtration Inflow Area = 16.882 ac, 27.57% Impervious, Inflow Depth = 1.17" for 1-Year event Inflow = 9.92 cfs @ 12.27 hrs, Volume= 1.650 af Outflow = 1.22 cfs @ 15.43 hrs, Volume= 1.245 af, Atten= 88%, Lag= 189.4 min Primary = 1.22 cfs @ 15.43 hrs, Volume= 1.245 af Routed to Reach 21R : Wetland 6 Lower Reach Secondary = 0.00 cfs @ 0.00 hrs, Volume= 0.000 af Routed to Reach 21R : Wetland 6 Lower Reach Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 893.60' @ 15.43 hrs Surf.Area= 32,680 sf Storage= 33,411 cf Plug-Flow detention time= 658.6 min calculated for 1.245 af (75% of inflow) Center-of-Mass det. time= 499.9 min ( 1,497.0 - 997.0 ) Volume Invert Avail.Storage Storage Description #1 892.50' 158,719 cf Open Pond (Prismatic) Listed below (Recalc) Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 892.50 8,125 0 0 892.54 8,180 326 326 892.55 30,215 192 518 893.00 31,280 13,836 14,354 894.00 33,630 32,455 46,809 895.00 36,050 34,840 81,649 896.00 38,530 37,290 118,939 897.00 41,030 39,780 158,719 Device Routing Invert Outlet Devices #1 Primary 887.86'18.0" Round Culvert L= 30.0' RCP, sq.cut end projecting, Ke= 0.500 Inlet / Outlet Invert= 887.86' / 887.71' S= 0.0050 '/' Cc= 0.900 n= 0.011 Concrete pipe, straight & clean, Flow Area= 1.77 sf #2 Device 1 889.70'8.0" Vert. Orifice - Underdrain C= 0.600 Limited to weir flow at low heads #3 Device 1 893.10'18.0" Vert. Orifice - Overflow C= 0.600 Limited to weir flow at low heads #4 Device 2 892.50'0.800 in/hr Exfiltration over Surface area from 891.69' - 891.74' Excluded Surface area = 0 sf Phase-In= 0.01' #5 Secondary 896.75'20.0' long x 30.0' breadth Broad-Crested Rectangular Weir Head (feet) 0.20 0.40 0.60 0.80 1.00 1.20 1.40 1.60 Coef. (English) 2.68 2.70 2.70 2.64 2.63 2.64 2.64 2.63 MSE 24-hr 3 1-Year Rainfall=2.47"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 50HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Primary OutFlow Max=1.22 cfs @ 15.43 hrs HW=893.60' TW=885.25' (Dynamic Tailwater) 1=Culvert (Passes 1.22 cfs of 19.00 cfs potential flow) 2=Orifice - Underdrain (Passes 0.00 cfs of 3.17 cfs potential flow) 4=Exfiltration (Exfiltration Controls 0.00 cfs) 3=Orifice - Overflow (Orifice Controls 1.22 cfs @ 2.40 fps) Secondary OutFlow Max=0.00 cfs @ 0.00 hrs HW=892.50' TW=885.00' (Dynamic Tailwater) 5=Broad-Crested Rectangular Weir ( Controls 0.00 cfs) Pond 21P: Northwest Basin w Filtration Inflow Outflow Primary Secondary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)11 10 9 8 7 6 5 4 3 2 1 0 Inflow Area=16.882 ac Peak Elev=893.60' Storage=33,411 cf 9.92 cfs 1.22 cfs 1.22 cfs 0.00 cfs MSE 24-hr 3 1-Year Rainfall=2.47"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 51HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Pond 25P: West-North w Filtration Inflow Area = 4.570 ac, 58.96% Impervious, Inflow Depth = 1.58" for 1-Year event Inflow = 11.12 cfs @ 12.17 hrs, Volume= 0.603 af Outflow = 3.15 cfs @ 12.44 hrs, Volume= 0.603 af, Atten= 72%, Lag= 16.1 min Primary = 3.15 cfs @ 12.44 hrs, Volume= 0.603 af Routed to Pond 21P : Northwest Basin w Filtration Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 916.46' @ 12.44 hrs Surf.Area= 17,854 sf Storage= 11,041 cf Plug-Flow detention time= 128.7 min calculated for 0.603 af (100% of inflow) Center-of-Mass det. time= 128.7 min ( 925.5 - 796.7 ) Volume Invert Avail.Storage Storage Description #1 914.93' 36,108 cf Rock Bed (Prismatic) Listed below (Recalc) 90,520 cf Overall - 249 cf Embedded = 90,271 cf x 40.0% Voids #2 914.94' 249 cf 8.0" Round Pipe Storage Inside #1 L= 714.0' 36,357 cf Total Available Storage Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 914.93 17,854 0 0 920.00 17,854 90,520 90,520 Device Routing Invert Outlet Devices #1 Primary 908.00'18.0" Round Culvert L= 164.0' RCP, sq.cut end projecting, Ke= 0.500 Inlet / Outlet Invert= 908.00' / 905.82' S= 0.0133 '/' Cc= 0.900 n= 0.011 Concrete pipe, straight & clean, Flow Area= 1.77 sf #2 Device 1 912.63'8.0" Vert. Underdrain C= 0.600 Limited to weir flow at low heads #3 Device 1 915.67'18.0" Vert. Overflow C= 0.600 Limited to weir flow at low heads #4 Device 2 914.93'0.800 in/hr Filtration over Surface area Phase-In= 0.01' Primary OutFlow Max=3.15 cfs @ 12.44 hrs HW=916.45' TW=893.00' (Dynamic Tailwater) 1=Culvert (Passes 3.15 cfs of 22.44 cfs potential flow) 2=Underdrain (Passes 0.33 cfs of 3.14 cfs potential flow) 4=Filtration (Exfiltration Controls 0.33 cfs) 3=Overflow (Orifice Controls 2.82 cfs @ 3.02 fps) MSE 24-hr 3 1-Year Rainfall=2.47"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 52HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Pond 25P: West-North w Filtration Inflow Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)12 11 10 9 8 7 6 5 4 3 2 1 0 Inflow Area=4.570 ac Peak Elev=916.46' Storage=11,041 cf 11.12 cfs 3.15 cfs MSE 24-hr 3 1-Year Rainfall=2.47"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 53HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Pond 28P: Avienda Pkwy Surface Basin NOT UPDATED [44] Hint: Outlet device #3 is below defined storage Inflow Area = 5.809 ac, 26.23% Impervious, Inflow Depth = 1.13" for 1-Year event Inflow = 8.28 cfs @ 12.23 hrs, Volume= 0.548 af Outflow = 0.71 cfs @ 13.54 hrs, Volume= 0.548 af, Atten= 91%, Lag= 78.2 min Primary = 0.71 cfs @ 13.54 hrs, Volume= 0.548 af Routed to Pond 21P : Northwest Basin w Filtration Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 912.97' @ 13.54 hrs Surf.Area= 32,883 sf Storage= 14,134 cf Plug-Flow detention time= (not calculated: outflow precedes inflow) Center-of-Mass det. time= 408.3 min ( 1,227.8 - 819.5 ) Volume Invert Avail.Storage Storage Description #1 912.53' 292,399 cf Open Pond (Prismatic) Listed below (Recalc) Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 912.53 30,930 0 0 919.00 59,456 292,399 292,399 Device Routing Invert Outlet Devices #1 Primary 908.15'12.0" Round Culvert L= 159.0' RCP, square edge headwall, Ke= 0.500 Inlet / Outlet Invert= 908.15' / 906.81' S= 0.0084 '/' Cc= 0.900 n= 0.013 Concrete pipe, straight & clean, Flow Area= 0.79 sf #2 Device 1 909.73'12.0" Round Culvert L= 165.0' RCP, square edge headwall, Ke= 0.500 Inlet / Outlet Invert= 909.73' / 908.15' S= 0.0096 '/' Cc= 0.900 n= 0.013 Concrete pipe, straight & clean, Flow Area= 0.79 sf #3 Device 2 912.45'12.0" Round Culvert L= 17.0' RCP, end-section conforming to fill, Ke= 0.500 Inlet / Outlet Invert= 912.45' / 912.37' S= 0.0047 '/' Cc= 0.900 n= 0.013 Concrete pipe, straight & clean, Flow Area= 0.79 sf Primary OutFlow Max=0.71 cfs @ 13.54 hrs HW=912.97' TW=893.47' (Dynamic Tailwater) 1=Culvert (Passes 0.71 cfs of 5.62 cfs potential flow) 2=Culvert (Passes 0.71 cfs of 4.77 cfs potential flow) 3=Culvert (Barrel Controls 0.71 cfs @ 2.50 fps) MSE 24-hr 3 1-Year Rainfall=2.47"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 54HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Pond 28P: Avienda Pkwy Surface Basin NOT UPDATED Inflow Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)9 8 7 6 5 4 3 2 1 0 Inflow Area=5.809 ac Peak Elev=912.97' Storage=14,134 cf 8.28 cfs 0.71 cfs MSE 24-hr 3 1-Year Rainfall=2.47"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 55HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Pond 31P: West-Central Surface Basin w Filtration Inflow Area = 0.876 ac, 35.33% Impervious, Inflow Depth = 1.22" for 1-Year event Inflow = 1.47 cfs @ 12.22 hrs, Volume= 0.089 af Outflow = 0.11 cfs @ 13.56 hrs, Volume= 0.089 af, Atten= 93%, Lag= 80.3 min Primary = 0.11 cfs @ 13.56 hrs, Volume= 0.089 af Routed to Pond 33P : Wetland 3 Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 924.36' @ 13.56 hrs Surf.Area= 5,846 sf Storage= 2,045 cf Plug-Flow detention time= 178.7 min calculated for 0.089 af (100% of inflow) Center-of-Mass det. time= 178.7 min ( 993.7 - 815.0 ) Volume Invert Avail.Storage Storage Description #1 924.00' 13,385 cf Surface Basin (Prismatic) Listed below (Recalc) Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 924.00 5,360 0 0 926.00 8,025 13,385 13,385 Device Routing Invert Outlet Devices #1 Primary 920.93'15.0" Round Culvert L= 42.0' RCP, sq.cut end projecting, Ke= 0.500 Inlet / Outlet Invert= 920.93' / 920.80' S= 0.0031 '/' Cc= 0.900 n= 0.011 Concrete pipe, straight & clean, Flow Area= 1.23 sf #2 Device 1 920.93'8.0" Vert. Orifice/Grate - Underdrain C= 0.600 Limited to weir flow at low heads #3 Device 1 925.00'8.0" Vert. Orifice/Grate - Overflow C= 0.600 Limited to weir flow at low heads #4 Device 2 924.00'0.800 in/hr Filtration over Horizontal area above 923.22' Excluded Horizontal area = 0 sf Phase-In= 0.01' Primary OutFlow Max=0.11 cfs @ 13.56 hrs HW=924.36' TW=921.06' (Dynamic Tailwater) 1=Culvert (Passes 0.11 cfs of 9.90 cfs potential flow) 2=Orifice/Grate - Underdrain (Passes 0.11 cfs of 2.96 cfs potential flow) 4=Filtration (Exfiltration Controls 0.11 cfs) 3=Orifice/Grate - Overflow ( Controls 0.00 cfs) MSE 24-hr 3 1-Year Rainfall=2.47"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 56HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Pond 31P: West-Central Surface Basin w Filtration Inflow Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)1 0 Inflow Area=0.876 ac Peak Elev=924.36' Storage=2,045 cf 1.47 cfs 0.11 cfs MSE 24-hr 3 1-Year Rainfall=2.47"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 57HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Pond 33P: Wetland 3 Inflow Area = 5.243 ac, 15.35% Impervious, Inflow Depth = 1.09" for 1-Year event Inflow = 7.25 cfs @ 12.16 hrs, Volume= 0.476 af Outflow = 0.93 cfs @ 12.90 hrs, Volume= 0.476 af, Atten= 87%, Lag= 44.4 min Primary = 0.93 cfs @ 12.90 hrs, Volume= 0.476 af Routed to Pond 34P : West - South (existing) Secondary = 0.00 cfs @ 0.00 hrs, Volume= 0.000 af Routed to Reach 30R : West Drainage Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 921.07' @ 12.90 hrs Surf.Area= 32,847 sf Storage= 8,663 cf Plug-Flow detention time= 149.4 min calculated for 0.476 af (100% of inflow) Center-of-Mass det. time= 152.6 min ( 1,003.0 - 850.4 ) Volume Invert Avail.Storage Storage Description #1 920.58' 140,121 cf Custom Stage Data (Prismatic) Listed below (Recalc) Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 920.58 100 0 0 921.00 30,000 6,321 6,321 922.00 68,200 49,100 55,421 923.00 101,200 84,700 140,121 Device Routing Invert Outlet Devices #1 Primary 920.58'12.0" Round Culvert L= 455.0' RCP, end-section conforming to fill, Ke= 0.500 Inlet / Outlet Invert= 920.58' / 911.02' S= 0.0210 '/' Cc= 0.900 n= 0.013 Concrete pipe, straight & clean, Flow Area= 0.79 sf #2 Secondary 921.90'Asymmetrical Weir, C= 3.27 Offset (feet) 0.00 19.00 40.00 50.00 76.00 103.00 Height (feet) 1.50 0.50 0.00 0.00 0.50 1.50 Primary OutFlow Max=0.93 cfs @ 12.90 hrs HW=921.07' TW=907.51' (Dynamic Tailwater) 1=Culvert (Inlet Controls 0.93 cfs @ 2.39 fps) Secondary OutFlow Max=0.00 cfs @ 0.00 hrs HW=920.58' TW=0.00' (Dynamic Tailwater) 2=Asymmetrical Weir ( Controls 0.00 cfs) MSE 24-hr 3 1-Year Rainfall=2.47"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 58HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Pond 33P: Wetland 3 Inflow Outflow Primary Secondary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)8 7 6 5 4 3 2 1 0 Inflow Area=5.243 ac Peak Elev=921.07' Storage=8,663 cf 7.25 cfs 0.93 cfs 0.93 cfs 0.00 cfs MSE 24-hr 3 1-Year Rainfall=2.47"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 59HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Pond 34P: West - South (existing) Inflow Area = 8.421 ac, 9.56% Impervious, Inflow Depth = 0.78" for 1-Year event Inflow = 1.51 cfs @ 12.28 hrs, Volume= 0.546 af Outflow = 1.39 cfs @ 12.39 hrs, Volume= 0.546 af, Atten= 8%, Lag= 6.5 min Primary = 1.39 cfs @ 12.39 hrs, Volume= 0.546 af Routed to Reach 30R : West Drainage Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 907.57' @ 12.39 hrs Surf.Area= 0.031 ac Storage= 0.009 af Plug-Flow detention time= (not calculated: outflow precedes inflow) Center-of-Mass det. time= 4.8 min ( 989.8 - 985.0 ) Volume Invert Avail.Storage Storage Description #1 907.00' 1.603 af Custom Stage Data (Prismatic) Listed below (Recalc) Elevation Surf.Area Inc.Store Cum.Store (feet) (acres) (acre-feet) (acre-feet) 907.00 0.000 0.000 0.000 908.00 0.055 0.028 0.028 909.00 0.208 0.131 0.159 910.00 0.413 0.310 0.469 911.00 0.573 0.493 0.962 912.00 0.709 0.641 1.603 Device Routing Invert Outlet Devices #1 Primary 907.00'15.0" Round Culvert L= 48.8' RCP, end-section conforming to fill, Ke= 0.500 Inlet / Outlet Invert= 907.00' / 906.00' S= 0.0205 '/' Cc= 0.900 n= 0.013 Concrete pipe, straight & clean, Flow Area= 1.23 sf #2 Primary 911.22'Asymmetrical Weir, C= 3.27 Offset (feet) 0.00 12.00 18.00 28.00 49.00 88.00 Height (feet) 1.35 0.02 0.00 0.15 0.70 1.35 Primary OutFlow Max=1.39 cfs @ 12.39 hrs HW=907.57' TW=0.00' (Dynamic Tailwater) 1=Culvert (Inlet Controls 1.39 cfs @ 2.57 fps) 2=Asymmetrical Weir ( Controls 0.00 cfs) MSE 24-hr 3 1-Year Rainfall=2.47"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 60HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Pond 34P: West - South (existing) Inflow Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)1 0 Inflow Area=8.421 ac Peak Elev=907.57' Storage=0.009 af 1.51 cfs 1.39 cfs MSE 24-hr 3 1-Year Rainfall=2.47"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 61HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Pond 41.3P: South-West Temp Basin Inflow Area = 14.560 ac, 9.59% Impervious, Inflow Depth = 0.98" for 1-Year event Inflow = 10.80 cfs @ 12.31 hrs, Volume= 1.185 af Outflow = 2.43 cfs @ 13.28 hrs, Volume= 1.184 af, Atten= 77%, Lag= 58.3 min Primary = 1.93 cfs @ 13.28 hrs, Volume= 1.136 af Routed to Reach 44R : Southwest Secondary = 0.50 cfs @ 13.28 hrs, Volume= 0.048 af Routed to Reach 44R : Southwest Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 877.29' @ 13.28 hrs Surf.Area= 17,801 sf Storage= 23,533 cf Plug-Flow detention time= 202.4 min calculated for 1.184 af (100% of inflow) Center-of-Mass det. time= 200.4 min ( 1,083.1 - 882.7 ) Volume Invert Avail.Storage Storage Description #1 875.63' 126,081 cf Surface Basin (Prismatic) Listed below (Recalc) Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 875.63 8,290 0 0 876.00 12,755 3,893 3,893 878.00 20,605 33,360 37,253 879.00 26,525 23,565 60,818 880.00 32,000 29,263 90,081 881.00 40,000 36,000 126,081 Device Routing Invert Outlet Devices #1 Primary 875.63'15.0" Round Culvert L= 46.0' RCP, end-section conforming to fill, Ke= 0.500 Inlet / Outlet Invert= 875.63' / 875.00' S= 0.0137 '/' Cc= 0.900 n= 0.011 Concrete pipe, straight & clean, Flow Area= 1.23 sf #2 Secondary 877.00'24.0" Round Culvert L= 46.0' RCP, end-section conforming to fill, Ke= 0.500 Inlet / Outlet Invert= 877.00' / 876.37' S= 0.0137 '/' Cc= 0.900 n= 0.011 Concrete pipe, straight & clean, Flow Area= 3.14 sf #3 Device 1 875.63'8.0" Round Culvert L= 8.0' CPP, square edge headwall, Ke= 0.500 Inlet / Outlet Invert= 875.63' / 875.52' S= 0.0138 '/' Cc= 0.900 n= 0.011 PVC, smooth interior, Flow Area= 0.35 sf Primary OutFlow Max=1.93 cfs @ 13.28 hrs HW=877.29' TW=0.00' (Dynamic Tailwater) 1=Culvert (Passes 1.93 cfs of 6.00 cfs potential flow) 3=Culvert (Inlet Controls 1.93 cfs @ 5.54 fps) Secondary OutFlow Max=0.50 cfs @ 13.28 hrs HW=877.29' TW=0.00' (Dynamic Tailwater) 2=Culvert (Inlet Controls 0.50 cfs @ 1.82 fps) MSE 24-hr 3 1-Year Rainfall=2.47"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 62HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Pond 41.3P: South-West Temp Basin Inflow Outflow Primary Secondary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)12 11 10 9 8 7 6 5 4 3 2 1 0 Inflow Area=14.560 ac Peak Elev=877.29' Storage=23,533 cf 10.80 cfs 2.43 cfs 1.93 cfs 0.50 cfs MSE 24-hr 3 1-Year Rainfall=2.47"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 63HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Pond 44P: Wetland 4 Inflow Area = 13.102 ac, 8.95% Impervious, Inflow Depth = 0.35" for 1-Year event Inflow = 1.01 cfs @ 12.69 hrs, Volume= 0.384 af Outflow = 1.01 cfs @ 12.72 hrs, Volume= 0.383 af, Atten= 0%, Lag= 1.7 min Primary = 1.01 cfs @ 12.72 hrs, Volume= 0.383 af Routed to Reach 44R : Southwest Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 884.20' @ 12.72 hrs Surf.Area= 1,315 sf Storage= 219 cf Plug-Flow detention time= 10.3 min calculated for 0.383 af (100% of inflow) Center-of-Mass det. time= 8.8 min ( 1,136.3 - 1,127.5 ) Volume Invert Avail.Storage Storage Description #1 884.00' 37,633 cf Custom Stage Data (Prismatic) Listed below (Recalc) Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 884.00 870 0 0 884.50 1,980 713 713 885.00 3,500 1,370 2,083 886.00 7,800 5,650 7,733 887.00 14,000 10,900 18,633 888.00 24,000 19,000 37,633 Device Routing Invert Outlet Devices #1 Primary 884.03'Asymmetrical Weir, C= 3.27 Offset (feet) 0.00 51.00 133.60 176.00 217.30 239.00 Elev. (feet) 889.78 886.05 884.03 885.84 889.00 889.78 Primary OutFlow Max=1.01 cfs @ 12.72 hrs HW=884.20' TW=0.00' (Dynamic Tailwater) 1=Asymmetrical Weir (Weir Controls 1.01 cfs @ 0.54 fps) MSE 24-hr 3 1-Year Rainfall=2.47"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 64HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Pond 44P: Wetland 4 Inflow Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)1 0 Inflow Area=13.102 ac Peak Elev=884.20' Storage=219 cf 1.01 cfs 1.01 cfs MSE 24-hr 3 1-Year Rainfall=2.47"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 65HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Pond 46P: Triangle Basin Inflow Area = 2.769 ac, 15.75% Impervious, Inflow Depth = 1.04" for 1-Year event Inflow = 4.16 cfs @ 12.20 hrs, Volume= 0.239 af Outflow = 1.79 cfs @ 12.41 hrs, Volume= 0.239 af, Atten= 57%, Lag= 12.5 min Primary = 1.79 cfs @ 12.41 hrs, Volume= 0.239 af Routed to Pond 41.3P : South-West Temp Basin Secondary = 0.00 cfs @ 0.00 hrs, Volume= 0.000 af Routed to Pond 41.3P : South-West Temp Basin Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 888.65' @ 12.41 hrs Surf.Area= 3,473 sf Storage= 3,737 cf Plug-Flow detention time= 260.2 min calculated for 0.239 af (100% of inflow) Center-of-Mass det. time= 260.2 min ( 1,081.1 - 820.8 ) Volume Invert Avail.Storage Storage Description #1 887.17' 14,801 cf Open pond (Prismatic) Listed below (Recalc) Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 887.17 1,586 0 0 890.90 6,350 14,801 14,801 Device Routing Invert Outlet Devices #1 Primary 884.37'18.0" Round Culvert L= 125.0' RCP, sq.cut end projecting, Ke= 0.500 Inlet / Outlet Invert= 884.37' / 875.62' S= 0.0700 '/' Cc= 0.900 n= 0.011 Concrete pipe, straight & clean, Flow Area= 1.77 sf #2 Device 1 888.00'15.0" Vert. Orifice/Grate C= 0.600 Limited to weir flow at low heads #3 Secondary 890.75'20.0' long x 5.0' breadth Broad-Crested Rectangular Weir Head (feet) 0.20 0.40 0.60 0.80 1.00 1.20 1.40 1.60 1.80 2.00 2.50 3.00 3.50 4.00 4.50 5.00 5.50 Coef. (English) 2.34 2.50 2.70 2.68 2.68 2.66 2.65 2.65 2.65 2.65 2.67 2.66 2.68 2.70 2.74 2.79 2.88 #4 Device 1 887.17'0.450 in/hr Filtration over Surface area Phase-In= 0.01' Primary OutFlow Max=1.79 cfs @ 12.41 hrs HW=888.65' TW=876.69' (Dynamic Tailwater) 1=Culvert (Passes 1.79 cfs of 15.98 cfs potential flow) 2=Orifice/Grate (Orifice Controls 1.76 cfs @ 2.74 fps) 4=Filtration (Exfiltration Controls 0.04 cfs) Secondary OutFlow Max=0.00 cfs @ 0.00 hrs HW=887.17' TW=875.63' (Dynamic Tailwater) 3=Broad-Crested Rectangular Weir ( Controls 0.00 cfs) MSE 24-hr 3 1-Year Rainfall=2.47"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 66HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Pond 46P: Triangle Basin Inflow Outflow Primary Secondary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)4 3 2 1 0 Inflow Area=2.769 ac Peak Elev=888.65' Storage=3,737 cf 4.16 cfs 1.79 cfs 1.79 cfs 0.00 cfs MSE 24-hr 3 1-Year Rainfall=2.47"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 67HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Pond 47P: Bluff Creek - West Basin - 60" PIPE Inflow Area = 2.860 ac, 40.99% Impervious, Inflow Depth = 1.33" for 1-Year event Inflow = 5.86 cfs @ 12.17 hrs, Volume= 0.318 af Outflow = 0.83 cfs @ 12.66 hrs, Volume= 0.318 af, Atten= 86%, Lag= 29.6 min Primary = 0.83 cfs @ 12.66 hrs, Volume= 0.318 af Routed to Reach 48R : Developed Area To Wetland 4 Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 909.93' @ 12.66 hrs Surf.Area= 6,385 sf Storage= 7,106 cf Plug-Flow detention time= 353.0 min calculated for 0.318 af (100% of inflow) Center-of-Mass det. time= 353.0 min ( 1,158.5 - 805.5 ) Volume Invert Avail.Storage Storage Description #1A 908.00' 8,037 cf 56.09'W x 113.17'L x 6.08'H Field A 38,615 cf Overall - 18,524 cf Embedded = 20,091 cf x 40.0% Voids #2A 908.00' 15,598 cf ADS N-12 60" x 35 Inside #1 Inside= 59.5"W x 59.5"H => 19.30 sf x 20.00'L = 386.0 cf Outside= 67.0"W x 67.0"H => 22.92 sf x 20.00'L = 458.4 cf 35 Chambers in 7 Rows 54.09' Header x 19.30 sf x 2 = 2,087.7 cf Inside #3 908.00' 34,645 cf 4.00'D x 919.00'H Vertical Cone/Cylinder x 3 58,280 cf Total Available Storage Storage Group A created with Chamber Wizard Device Routing Invert Outlet Devices #1 Primary 905.20'15.0" Round Culvert L= 312.0' RCP, square edge headwall, Ke= 0.500 Inlet / Outlet Invert= 905.20' / 901.89' S= 0.0106 '/' Cc= 0.900 n= 0.013 Concrete pipe, straight & clean, Flow Area= 1.23 sf #2 Device 1 905.50'14.0" Round Culvert L= 20.0' CPP, square edge headwall, Ke= 0.500 Inlet / Outlet Invert= 905.50' / 905.20' S= 0.0150 '/' Cc= 0.900 n= 0.011 PVC, smooth interior, Flow Area= 1.07 sf #3 Device 2 909.50'12.0" Vert. Orifice - Overflow C= 0.600 Limited to weir flow at low heads #4 Device 2 906.00'8.0" Vert. Orifice - Underdrain C= 0.600 Limited to weir flow at low heads #5 Device 4 908.00'0.800 in/hr Filtration over Horizontal area Phase-In= 0.01' Primary OutFlow Max=0.83 cfs @ 12.66 hrs HW=909.93' TW=0.00' (Dynamic Tailwater) 1=Culvert (Passes 0.83 cfs of 8.66 cfs potential flow) 2=Culvert (Passes 0.83 cfs of 10.09 cfs potential flow) 3=Orifice - Overflow (Orifice Controls 0.71 cfs @ 2.23 fps) 4=Orifice - Underdrain (Passes 0.12 cfs of 3.19 cfs potential flow) 5=Filtration (Exfiltration Controls 0.12 cfs) MSE 24-hr 3 1-Year Rainfall=2.47"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 68HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Pond 47P: Bluff Creek - West Basin - 60" PIPE - Chamber Wizard Field A Chamber Model = ADS N-12 60" (ADS N-12® Pipe) Inside= 59.5"W x 59.5"H => 19.30 sf x 20.00'L = 386.0 cf Outside= 67.0"W x 67.0"H => 22.92 sf x 20.00'L = 458.4 cf 67.0" Wide + 30.0" Spacing = 97.0" C-C Row Spacing 5 Chambers/Row x 20.00' Long +5.58' Header x 2 = 111.17' Row Length +12.0" End Stone x 2 = 113.17' Base Length 7 Rows x 67.0" Wide + 30.0" Spacing x 6 + 12.0" Side Stone x 2 = 56.09' Base Width 67.0" Chamber Height + 6.0" Stone Cover = 6.08' Field Height 35 Chambers x 386.0 cf + 54.09' Header x 19.30 sf x 2 = 15,597.7 cf Chamber Storage 35 Chambers x 458.4 cf + 54.09' Header x 22.92 sf x 2 = 18,524.0 cf Displacement 38,615.4 cf Field - 18,524.0 cf Chambers = 20,091.4 cf Stone x 40.0% Voids = 8,036.6 cf Stone Storage Chamber Storage + Stone Storage = 23,634.3 cf = 0.543 af Overall Storage Efficiency = 61.2% Overall System Size = 113.17' x 56.09' x 6.08' 35 Chambers 1,430.2 cy Field 744.1 cy Stone MSE 24-hr 3 1-Year Rainfall=2.47"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 69HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Pond 47P: Bluff Creek - West Basin - 60" PIPE Inflow Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)6 5 4 3 2 1 0 Inflow Area=2.860 ac Peak Elev=909.93' Storage=7,106 cf 5.86 cfs 0.83 cfs MSE 24-hr 3 1-Year Rainfall=2.47"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 70HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Pond 48P: Bluff Creek - East Basin [44] Hint: Outlet device #2 is below defined storage Inflow Area = 7.828 ac, 28.98% Impervious, Inflow Depth = 1.28" for 1-Year event Inflow = 15.86 cfs @ 12.14 hrs, Volume= 0.833 af Outflow = 0.92 cfs @ 13.51 hrs, Volume= 0.833 af, Atten= 94%, Lag= 82.3 min Primary = 0.92 cfs @ 13.51 hrs, Volume= 0.833 af Routed to Pond 54P : South-East Temp Basin Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 897.72' @ 13.51 hrs Surf.Area= 41,994 sf Storage= 21,539 cf Plug-Flow detention time= (not calculated: outflow precedes inflow) Center-of-Mass det. time= 321.6 min ( 1,124.7 - 803.1 ) Volume Invert Avail.Storage Storage Description #1 897.20' 340,085 cf Open Pond (Prismatic) Listed below (Recalc) Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 897.20 40,540 0 0 904.00 59,485 340,085 340,085 Device Routing Invert Outlet Devices #1 Primary 895.35'12.0" Round Culvert L= 637.0' RCP, sq.cut end projecting, Ke= 0.500 Inlet / Outlet Invert= 895.35' / 888.98' S= 0.0100 '/' Cc= 0.900 n= 0.017 Concrete sewer w/manholes & inlets, Flow Area= 0.79 sf #2 Device 1 897.00'8.0" Round Temp Outlet Pipe L= 21.0' CPP, mitered to conform to fill, Ke= 0.700 Inlet / Outlet Invert= 897.00' / 895.35' S= 0.0786 '/' Cc= 0.900 n= 0.011 PVC, smooth interior, Flow Area= 0.35 sf Primary OutFlow Max=0.92 cfs @ 13.51 hrs HW=897.72' TW=880.20' (Dynamic Tailwater) 1=Culvert (Passes 0.92 cfs of 2.94 cfs potential flow) 2=Temp Outlet Pipe (Inlet Controls 0.92 cfs @ 2.65 fps) MSE 24-hr 3 1-Year Rainfall=2.47"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 71HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Pond 48P: Bluff Creek - East Basin Inflow Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 Inflow Area=7.828 ac Peak Elev=897.72' Storage=21,539 cf 15.86 cfs 0.92 cfs MSE 24-hr 3 1-Year Rainfall=2.47"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 72HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Pond 52P: South-Center Temp Basin Inflow Area = 8.180 ac, 9.42% Impervious, Inflow Depth = 0.98" for 1-Year event Inflow = 6.93 cfs @ 12.33 hrs, Volume= 0.669 af Outflow = 6.86 cfs @ 12.39 hrs, Volume= 0.669 af, Atten= 1%, Lag= 3.2 min Primary = 6.86 cfs @ 12.39 hrs, Volume= 0.669 af Routed to Pond 41.3P : South-West Temp Basin Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 903.81' @ 12.39 hrs Surf.Area= 2,947 sf Storage= 992 cf Plug-Flow detention time= 3.0 min calculated for 0.669 af (100% of inflow) Center-of-Mass det. time= 3.0 min ( 835.9 - 832.9 ) Volume Invert Avail.Storage Storage Description #1 903.14' 49,230 cf Custom Stage Data (Prismatic) Listed below (Recalc) Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 903.14 10 0 0 904.00 3,775 1,628 1,628 905.00 19,015 11,395 13,023 906.00 53,400 36,208 49,230 Device Routing Invert Outlet Devices #1 Primary 903.14'Custom Weir/Orifice, Cv= 2.62 (C= 3.28) Head (feet) 0.00 0.25 0.50 0.75 1.00 2.00 Width (feet) 0.10 4.20 6.25 8.30 12.50 12.50 Primary OutFlow Max=6.86 cfs @ 12.39 hrs HW=903.81' TW=876.64' (Dynamic Tailwater) 1=Custom Weir/Orifice (Weir Controls 6.86 cfs @ 2.26 fps) MSE 24-hr 3 1-Year Rainfall=2.47"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 73HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Pond 52P: South-Center Temp Basin Inflow Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)7 6 5 4 3 2 1 0 Inflow Area=8.180 ac Peak Elev=903.81' Storage=992 cf 6.93 cfs 6.86 cfs MSE 24-hr 3 1-Year Rainfall=2.47"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 74HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Pond 54P: South-East Temp Basin Inflow Area = 13.937 ac, 16.28% Impervious, Inflow Depth = 1.10" for 1-Year event Inflow = 5.61 cfs @ 12.41 hrs, Volume= 1.275 af Outflow = 0.92 cfs @ 17.12 hrs, Volume= 1.274 af, Atten= 84%, Lag= 282.5 min Primary = 0.92 cfs @ 17.12 hrs, Volume= 1.274 af Routed to Reach 42.2R : Southeast Secondary = 0.00 cfs @ 0.00 hrs, Volume= 0.000 af Routed to Reach 42.2R : Southeast Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 880.45' @ 17.12 hrs Surf.Area= 13,863 sf Storage= 18,767 cf Plug-Flow detention time= 343.9 min calculated for 1.274 af (100% of inflow) Center-of-Mass det. time= 343.1 min ( 1,370.7 - 1,027.7 ) Volume Invert Avail.Storage Storage Description #1 879.00' 121,861 cf Custom Stage Data (Prismatic) Listed below (Recalc) Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 879.00 11,945 0 0 881.00 14,583 26,528 26,528 883.00 20,500 35,083 61,611 884.00 100,000 60,250 121,861 Device Routing Invert Outlet Devices #1 Primary 874.38'18.0" Round Culvert L= 68.0' RCP, sq.cut end projecting, Ke= 0.500 Inlet / Outlet Invert= 874.38' / 874.05' S= 0.0049 '/' Cc= 0.900 n= 0.013 Concrete pipe, straight & clean, Flow Area= 1.77 sf #2 Device 1 879.00'6.0" Round Culvert L= 29.0' CPP, mitered to conform to fill, Ke= 0.700 Inlet / Outlet Invert= 879.00' / 878.71' S= 0.0100 '/' Cc= 0.900 n= 0.011 PVC, smooth interior, Flow Area= 0.20 sf #3 Secondary 883.85'25.0' long x 50.0' breadth Broad-Crested Rectangular Weir Head (feet) 0.20 0.40 0.60 0.80 1.00 1.20 1.40 1.60 Coef. (English) 2.68 2.70 2.70 2.64 2.63 2.64 2.64 2.63 Primary OutFlow Max=0.92 cfs @ 17.12 hrs HW=880.45' TW=0.00' (Dynamic Tailwater) 1=Culvert (Passes 0.92 cfs of 18.96 cfs potential flow) 2=Culvert (Inlet Controls 0.92 cfs @ 4.66 fps) Secondary OutFlow Max=0.00 cfs @ 0.00 hrs HW=879.00' TW=0.00' (Dynamic Tailwater) 3=Broad-Crested Rectangular Weir ( Controls 0.00 cfs) MSE 24-hr 3 1-Year Rainfall=2.47"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 75HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Pond 54P: South-East Temp Basin Inflow Outflow Primary Secondary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)6 5 4 3 2 1 0 Inflow Area=13.937 ac Peak Elev=880.45' Storage=18,767 cf 5.61 cfs 0.92 cfs 0.92 cfs 0.00 cfs MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 76HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Time span=0.00-360.00 hrs, dt=0.01 hrs, 36001 points Runoff by SCS TR-20 method, UH=SCS, Weighted-CN Reach routing by Dyn-Stor-Ind method - Pond routing by Dyn-Stor-Ind method Runoff Area=19,930 sf 0.00% Impervious Runoff Depth=0.20"Subcatchment 13.1S: Front Yards - North Tc=5.0 min CN=80 Runoff=0.15 cfs 0.008 af Runoff Area=21,220 sf 0.00% Impervious Runoff Depth=0.20"Subcatchment 13.2S: Front Yards - South Tc=5.0 min CN=80 Runoff=0.16 cfs 0.008 af Runoff Area=5,069 sf 76.64% Impervious Runoff Depth=0.78"Subcatchment 16oS: East Offsite Tc=5.0 min CN=94 Runoff=0.17 cfs 0.008 af Runoff Area=283,295 sf 6.71% Impervious Runoff Depth=0.23"Subcatchment 21S: Northwest Flow Length=440' Tc=14.9 min CN=81 Runoff=1.51 cfs 0.123 af Runoff Area=10,548 sf 0.00% Impervious Runoff Depth=0.16"Subcatchment 22oS: From Lyman Flow Length=57' Slope=0.3330 '/' Tc=5.0 min CN=78 Runoff=0.05 cfs 0.003 af Runoff Area=41,685 sf 0.00% Impervious Runoff Depth=0.20"Subcatchment 22S: Direct to Wetland 6 Tc=5.0 min CN=80 Runoff=0.32 cfs 0.016 af Runoff Area=199,050 sf 58.96% Impervious Runoff Depth=0.60"Subcatchment 25S: West North Tc=10.0 min CN=91 Runoff=4.24 cfs 0.227 af Runoff Area=227,645 sf 28.54% Impervious Runoff Depth=0.34"Subcatchment 28S: Avienda Pkwy Tc=15.0 min CN=85 Runoff=2.14 cfs 0.149 af Runoff Area=5,467 sf 25.44% Impervious Runoff Depth=0.34"Subcatchment 29oS: North Offsite Tc=5.0 min CN=85 Runoff=0.08 cfs 0.004 af Runoff Area=38,150 sf 35.33% Impervious Runoff Depth=0.38"Subcatchment 31S: West Central Flow Length=345' Tc=13.2 min CN=86 Runoff=0.43 cfs 0.028 af Runoff Area=115,865 sf 17.26% Impervious Runoff Depth=0.23"Subcatchment 33oS: Offsite West - North Flow Length=431' Tc=7.3 min UI Adjusted CN=81 Runoff=0.88 cfs 0.050 af Runoff Area=74,385 sf 2.13% Impervious Runoff Depth=0.41"Subcatchment 33S: Direct to Wetland 3 Tc=12.0 min CN=87 Runoff=0.98 cfs 0.059 af Runoff Area=25,345 sf 22.45% Impervious Runoff Depth=0.31"Subcatchment 34dS: Offsite West Direct Tc=10.0 min CN=84 Runoff=0.26 cfs 0.015 af Runoff Area=32,845 sf 0.00% Impervious Runoff Depth=0.20"Subcatchment 34oS: Offsite to West South Tc=15.0 min CN=80 Runoff=0.15 cfs 0.013 af Runoff Area=105,570 sf 0.00% Impervious Runoff Depth=0.00"Subcatchment 34S: West Woods Flow Length=268' Tc=11.1 min CN=55 Runoff=0.00 cfs 0.000 af Runoff Area=165,040 sf 0.00% Impervious Runoff Depth=0.00"Subcatchment 35S: Southwest Flow Length=270' Tc=18.3 min CN=55 Runoff=0.00 cfs 0.000 af MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 77HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Runoff Area=1,628 sf 100.00% Impervious Runoff Depth=1.10"Subcatchment 36oS: Southwest Offsite Tc=5.0 min CN=98 Runoff=0.07 cfs 0.003 af Runoff Area=63,545 sf 52.82% Impervious Runoff Depth=0.55"Subcatchment 40.4S: So. Villas Private Flow Length=845' Tc=13.0 min CN=90 Runoff=1.10 cfs 0.066 af Runoff Area=157,310 sf 5.27% Impervious Runoff Depth=0.23"Subcatchment 41.3S: South-West Flow Length=285' Tc=8.9 min CN=81 Runoff=1.09 cfs 0.068 af Runoff Area=21,960 sf 0.00% Impervious Runoff Depth=0.20"Subcatchment 42.1S: South Fringe Tc=5.0 min CN=80 Runoff=0.17 cfs 0.009 af Runoff Area=8,870 sf 0.00% Impervious Runoff Depth=0.16"Subcatchment 42.2S: Southeast Fringe Tc=5.0 min CN=78 Runoff=0.05 cfs 0.003 af Runoff Area=140,400 sf 0.00% Impervious Runoff Depth=0.00"Subcatchment 43.1S: East Woods Flow Length=530' Tc=15.2 min CN=55 Runoff=0.00 cfs 0.000 af Runoff Area=76,080 sf 0.00% Impervious Runoff Depth=0.00"Subcatchment 43.2S: Northeast Woods Flow Length=623' Tc=19.5 min CN=55 Runoff=0.00 cfs 0.000 af Runoff Area=446,125 sf 0.00% Impervious Runoff Depth=0.00"Subcatchment 44S: North Woods Tc=20.0 min CN=55 Runoff=0.00 cfs 0.000 af Runoff Area=63,170 sf 0.00% Impervious Runoff Depth=0.20"Subcatchment 46S: Direct to Tri. Basin Flow Length=755' Tc=11.5 min CN=80 Runoff=0.32 cfs 0.024 af Runoff Area=57,455 sf 33.07% Impervious Runoff Depth=0.38"Subcatchment 46uS: Rear Yards of South Flow Length=755' Tc=11.5 min CN=86 Runoff=0.69 cfs 0.041 af Runoff Area=103,380 sf 49.41% Impervious Runoff Depth=0.50"Subcatchment 47S: Bluff Creek Pkwy - Tc=10.0 min CN=89 Runoff=1.82 cfs 0.099 af Runoff Area=168,700 sf 56.27% Impervious Runoff Depth=0.65"Subcatchment 48S: Bluff Creek Pkwy - Tc=10.0 min CN=92 Runoff=3.93 cfs 0.210 af Runoff Area=292,770 sf 0.00% Impervious Runoff Depth=0.20"Subcatchment 52S: South - Center Flow Length=660' Slope=0.0100 '/' Tc=27.0 min CN=80 Runoff=0.96 cfs 0.113 af Runoff Area=266,110 sf 0.00% Impervious Runoff Depth=0.20"Subcatchment 54S: South - East Flow Length=418' Tc=27.7 min CN=80 Runoff=0.86 cfs 0.103 af Runoff Area=167,215 sf 0.00% Impervious Runoff Depth=0.20"Subcatchment 55S: Direct to Bluff Creek - Tc=5.0 min CN=80 Runoff=1.27 cfs 0.065 af Inflow=0.19 cfs 0.125 afReach 20R: Northwest Drainage Outflow=0.19 cfs 0.125 af Avg. Flow Depth=0.12' Max Vel=0.34 fps Inflow=0.37 cfs 0.125 afReach 21R: Wetland 6 Lower Reach n=0.050 L=187.0' S=0.0053 '/' Capacity=3,072.14 cfs Outflow=0.19 cfs 0.125 af MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 78HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Inflow=0.43 cfs 0.168 afReach 30R: West Drainage Outflow=0.43 cfs 0.168 af Inflow=0.26 cfs 0.015 afReach 35R: Direct Runoff Outflow=0.26 cfs 0.015 af Inflow=0.87 cfs 0.815 afReach 40R: South Drainage Outflow=0.87 cfs 0.815 af Inflow=0.35 cfs 0.396 afReach 42.2R: Southeast Outflow=0.35 cfs 0.396 af Inflow=0.60 cfs 0.419 afReach 44R: Southwest Outflow=0.60 cfs 0.419 af Avg. Flow Depth=0.10' Max Vel=2.07 fps Inflow=0.69 cfs 0.041 afReach 46uR: South Swale - at East n=0.025 L=34.0' S=0.0294 '/' Capacity=11.72 cfs Outflow=0.69 cfs 0.041 af Inflow=0.12 cfs 0.107 afReach 48R: Developed Area To Wetland 4 Outflow=0.12 cfs 0.107 af Inflow=1.21 cfs 1.107 afReach 50R: Bluff Creek Drainage Outflow=1.21 cfs 1.107 af Peak Elev=893.18' Storage=20,098 cf Inflow=1.88 cfs 0.510 afPond 21P: Northwest Basin w Filtration Primary=0.04 cfs 0.105 af Secondary=0.00 cfs 0.000 af Outflow=0.04 cfs 0.105 af Peak Elev=915.58' Storage=4,789 cf Inflow=4.24 cfs 0.227 afPond 25P: West-North w Filtration Outflow=0.33 cfs 0.227 af Peak Elev=912.66' Storage=4,143 cf Inflow=2.24 cfs 0.160 afPond 28P: Avienda Pkwy Surface Basin Outflow=0.13 cfs 0.160 af Peak Elev=924.07' Storage=364 cf Inflow=0.43 cfs 0.028 afPond 31P: West-Central Surface Basin w Outflow=0.10 cfs 0.028 af Peak Elev=920.84' Storage=2,388 cf Inflow=1.88 cfs 0.137 afPond 33P: Wetland 3 Primary=0.28 cfs 0.137 af Secondary=0.00 cfs 0.000 af Outflow=0.28 cfs 0.137 af Peak Elev=907.26' Storage=0.002 af Inflow=0.32 cfs 0.150 afPond 34P: West - South (existing) Outflow=0.31 cfs 0.150 af Peak Elev=876.07' Storage=4,807 cf Inflow=2.19 cfs 0.314 afPond 41.3P: South-West Temp Basin Primary=0.48 cfs 0.313 af Secondary=0.00 cfs 0.000 af Outflow=0.48 cfs 0.313 af Peak Elev=884.10' Storage=101 cf Inflow=0.12 cfs 0.107 afPond 44P: Wetland 4 Outflow=0.12 cfs 0.106 af Peak Elev=888.04' Storage=1,869 cf Inflow=1.01 cfs 0.066 afPond 46P: Triangle Basin Primary=0.04 cfs 0.066 af Secondary=0.00 cfs 0.000 af Outflow=0.04 cfs 0.066 af MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 79HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Peak Elev=908.86' Storage=2,427 cf Inflow=1.94 cfs 0.107 afPond 47P: Bluff Creek - West Basin - 60" Outflow=0.12 cfs 0.107 af Peak Elev=897.36' Storage=6,553 cf Inflow=5.10 cfs 0.283 afPond 48P: Bluff Creek - East Basin Outflow=0.35 cfs 0.283 af Peak Elev=903.48' Storage=254 cf Inflow=1.49 cfs 0.180 afPond 52P: South-Center Temp Basin Outflow=1.47 cfs 0.180 af Peak Elev=879.42' Storage=5,131 cf Inflow=1.17 cfs 0.386 afPond 54P: South-East Temp Basin Primary=0.34 cfs 0.385 af Secondary=0.00 cfs 0.000 af Outflow=0.34 cfs 0.385 af Total Runoff Area = 78.187 ac Runoff Volume = 1.515 af Average Runoff Depth = 0.23" 86.61% Pervious = 67.722 ac 13.39% Impervious = 10.465 ac MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 80HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 13.1S: Front Yards - North Rowhomes Runoff = 0.15 cfs @ 12.14 hrs, Volume= 0.008 af, Depth= 0.20" Routed to Pond 28P : Avienda Pkwy Surface Basin NOT UPDATED Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32" Area (sf) CN Description 19,930 80 >75% Grass cover, Good, HSG D 19,930 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 5.0 Direct Entry, Subcatchment 13.1S: Front Yards - North Rowhomes Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.16 0.15 0.14 0.13 0.12 0.11 0.1 0.09 0.08 0.07 0.06 0.05 0.04 0.03 0.02 0.01 0 MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32" Runoff Area=19,930 sf Runoff Volume=0.008 af Runoff Depth=0.20" Tc=5.0 min CN=80 0.15 cfs MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 81HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 13.2S: Front Yards - South Rowhomes Runoff = 0.16 cfs @ 12.14 hrs, Volume= 0.008 af, Depth= 0.20" Routed to Pond 47P : Bluff Creek - West Basin - 60" PIPE Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32" Area (sf) CN Description 21,220 80 >75% Grass cover, Good, HSG D 21,220 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 5.0 Direct Entry, Subcatchment 13.2S: Front Yards - South Rowhomes Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.18 0.17 0.16 0.15 0.14 0.13 0.12 0.11 0.1 0.09 0.08 0.07 0.06 0.05 0.04 0.03 0.02 0.01 0 MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32" Runoff Area=21,220 sf Runoff Volume=0.008 af Runoff Depth=0.20" Tc=5.0 min CN=80 0.16 cfs MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 82HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 16oS: East Offsite Runoff = 0.17 cfs @ 12.12 hrs, Volume= 0.008 af, Depth= 0.78" Routed to Pond 48P : Bluff Creek - East Basin Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32" Area (sf) CN Description 1,184 80 >75% Grass cover, Good, HSG D 3,885 98 Paved parking, HSG D 5,069 94 Weighted Average 1,184 23.36% Pervious Area 3,885 76.64% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 5.0 Direct Entry, Subcatchment 16oS: East Offsite Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.19 0.18 0.17 0.16 0.15 0.14 0.13 0.12 0.11 0.1 0.09 0.08 0.07 0.06 0.05 0.04 0.03 0.02 0.01 0 MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32" Runoff Area=5,069 sf Runoff Volume=0.008 af Runoff Depth=0.78" Tc=5.0 min CN=94 0.17 cfs MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 83HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 21S: Northwest Runoff = 1.51 cfs @ 12.27 hrs, Volume= 0.123 af, Depth= 0.23" Routed to Pond 21P : Northwest Basin w Filtration Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32" Area (sf) CN Description 264,275 80 >75% Grass cover, Good, HSG D 19,020 98 Unconnected roofs, HSG D 283,295 81 Weighted Average 264,275 93.29% Pervious Area 19,020 6.71% Impervious Area 19,020 100.00% Unconnected Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 10.3 100 0.0200 0.16 Sheet Flow, Grass: Short n= 0.150 P2= 2.87" 3.7 190 0.0150 0.86 Shallow Concentrated Flow, Short Grass Pasture Kv= 7.0 fps 0.9 150 0.1470 2.68 Shallow Concentrated Flow, Short Grass Pasture Kv= 7.0 fps 14.9 440 Total Subcatchment 21S: Northwest Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)1 0 MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32" Runoff Area=283,295 sf Runoff Volume=0.123 af Runoff Depth=0.23" Flow Length=440' Tc=14.9 min CN=81 1.51 cfs MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 84HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 22oS: From Lyman Runoff = 0.05 cfs @ 12.14 hrs, Volume= 0.003 af, Depth= 0.16" Routed to Reach 21R : Wetland 6 Lower Reach Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32" Area (sf) CN Description 10,548 78 Meadow, non-grazed, HSG D 10,548 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 2.1 57 0.3330 0.44 Sheet Flow, Grass: Short n= 0.150 P2= 2.87" 2.9 Direct Entry, Make up to 5 minutes 5.0 57 Total Subcatchment 22oS: From Lyman Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.06 0.055 0.05 0.045 0.04 0.035 0.03 0.025 0.02 0.015 0.01 0.005 0 MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32" Runoff Area=10,548 sf Runoff Volume=0.003 af Runoff Depth=0.16" Flow Length=57' Slope=0.3330 '/' Tc=5.0 min CN=78 0.05 cfs MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 85HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 22S: Direct to Wetland 6 Runoff = 0.32 cfs @ 12.14 hrs, Volume= 0.016 af, Depth= 0.20" Routed to Reach 21R : Wetland 6 Lower Reach Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32" Area (sf) CN Description 41,685 80 >75% Grass cover, Good, HSG D 41,685 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 5.0 Direct Entry, Subcatchment 22S: Direct to Wetland 6 Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.34 0.32 0.3 0.28 0.26 0.24 0.22 0.2 0.18 0.16 0.14 0.12 0.1 0.08 0.06 0.04 0.02 0 MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32" Runoff Area=41,685 sf Runoff Volume=0.016 af Runoff Depth=0.20" Tc=5.0 min CN=80 0.32 cfs MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 86HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 25S: West North Runoff = 4.24 cfs @ 12.18 hrs, Volume= 0.227 af, Depth= 0.60" Routed to Pond 25P : West-North w Filtration Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32" Area (sf) CN Description 81,685 80 >75% Grass cover, Good, HSG D 99,930 98 Paved parking, HSG D 17,435 98 Unconnected roofs, HSG D 199,050 91 Weighted Average 81,685 41.04% Pervious Area 117,365 58.96% Impervious Area 17,435 14.86% Unconnected Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 10.0 Direct Entry, Subcatchment 25S: West North Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)4 3 2 1 0 MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32" Runoff Area=199,050 sf Runoff Volume=0.227 af Runoff Depth=0.60" Tc=10.0 min CN=91 4.24 cfs MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 87HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 28S: Avienda Pkwy Runoff = 2.14 cfs @ 12.25 hrs, Volume= 0.149 af, Depth= 0.34" Routed to Pond 28P : Avienda Pkwy Surface Basin NOT UPDATED Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32" Area (sf) CN Description 162,665 80 >75% Grass cover, Good, HSG D 64,980 98 Paved roads w/curbs & sewers, HSG D 227,645 85 Weighted Average 162,665 71.46% Pervious Area 64,980 28.54% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 15.0 Direct Entry, Subcatchment 28S: Avienda Pkwy Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)2 1 0 MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32" Runoff Area=227,645 sf Runoff Volume=0.149 af Runoff Depth=0.34" Tc=15.0 min CN=85 2.14 cfs MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 88HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 29oS: North Offsite Runoff = 0.08 cfs @ 12.13 hrs, Volume= 0.004 af, Depth= 0.34" Routed to Pond 28P : Avienda Pkwy Surface Basin NOT UPDATED Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32" Area (sf) CN Description 4,076 80 >75% Grass cover, Good, HSG D 1,391 98 Paved parking, HSG D 5,467 85 Weighted Average 4,076 74.56% Pervious Area 1,391 25.44% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 5.0 Direct Entry, Subcatchment 29oS: North Offsite Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.09 0.085 0.08 0.075 0.07 0.065 0.06 0.055 0.05 0.045 0.04 0.035 0.03 0.025 0.02 0.015 0.01 0.005 0 MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32" Runoff Area=5,467 sf Runoff Volume=0.004 af Runoff Depth=0.34" Tc=5.0 min CN=85 0.08 cfs MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 89HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 31S: West Central Runoff = 0.43 cfs @ 12.23 hrs, Volume= 0.028 af, Depth= 0.38" Routed to Pond 31P : West-Central Surface Basin w Filtration Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32" Area (sf) CN Description 24,670 80 >75% Grass cover, Good, HSG D 9,870 98 Unconnected roofs, HSG D * 3,610 98 Connected roofs, HSG D 38,150 86 Weighted Average 24,670 64.67% Pervious Area 13,480 35.33% Impervious Area 9,870 73.22% Unconnected Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 10.3 100 0.0200 0.16 Sheet Flow, Grass: Short n= 0.150 P2= 2.87" 2.9 245 0.0410 1.42 Shallow Concentrated Flow, Short Grass Pasture Kv= 7.0 fps 13.2 345 Total Subcatchment 31S: West Central Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.46 0.44 0.42 0.4 0.38 0.36 0.34 0.32 0.3 0.28 0.26 0.24 0.22 0.2 0.18 0.16 0.14 0.12 0.1 0.08 0.06 0.04 0.02 0 MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32" Runoff Area=38,150 sf Runoff Volume=0.028 af Runoff Depth=0.38" Flow Length=345' Tc=13.2 min CN=86 0.43 cfs MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 90HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 33oS: Offsite West - North Runoff = 0.88 cfs @ 12.16 hrs, Volume= 0.050 af, Depth= 0.23" Routed to Pond 33P : Wetland 3 Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32" Area (sf) CN Adj Description 20,000 98 Unconnected roofs, HSG D 71,000 80 >75% Grass cover, Good, HSG D * 12,720 96 Wetland, Good, HSG D 12,145 58 Meadow, non-grazed, HSG B 115,865 83 81 Weighted Average, UI Adjusted 95,865 82.74% Pervious Area 20,000 17.26% Impervious Area 20,000 100.00% Unconnected Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 5.0 25 0.0200 0.08 Sheet Flow, Grass: Dense n= 0.240 P2= 2.87" 2.3 406 0.0390 2.96 Shallow Concentrated Flow, Grassed Waterway Kv= 15.0 fps 7.3 431 Total Subcatchment 33oS: Offsite West - North Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.95 0.9 0.85 0.8 0.75 0.7 0.65 0.6 0.55 0.5 0.45 0.4 0.35 0.3 0.25 0.2 0.15 0.1 0.05 0 MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32" Runoff Area=115,865 sf Runoff Volume=0.050 af Runoff Depth=0.23" Flow Length=431' Tc=7.3 min UI Adjusted CN=81 0.88 cfs MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 91HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 33S: Direct to Wetland 3 Runoff = 0.98 cfs @ 12.21 hrs, Volume= 0.059 af, Depth= 0.41" Routed to Pond 33P : Wetland 3 Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32" Area (sf) CN Description * 29,365 96 Wetland, Good, HSG D 43,435 80 >75% Grass cover, Good, HSG D 1,585 98 Unconnected roofs, HSG D 74,385 87 Weighted Average 72,800 97.87% Pervious Area 1,585 2.13% Impervious Area 1,585 100.00% Unconnected Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 12.0 Direct Entry, Subcatchment 33S: Direct to Wetland 3 Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)1 0 MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32" Runoff Area=74,385 sf Runoff Volume=0.059 af Runoff Depth=0.41" Tc=12.0 min CN=87 0.98 cfs MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 92HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 34dS: Offsite West Direct Runoff = 0.26 cfs @ 12.19 hrs, Volume= 0.015 af, Depth= 0.31" Routed to Reach 35R : Direct Runoff Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32" Area (sf) CN Description 19,655 80 >75% Grass cover, Good, HSG D 5,690 98 Paved roads w/curbs & sewers, HSG D 25,345 84 Weighted Average 19,655 77.55% Pervious Area 5,690 22.45% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 10.0 Direct Entry, Subcatchment 34dS: Offsite West Direct Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.28 0.26 0.24 0.22 0.2 0.18 0.16 0.14 0.12 0.1 0.08 0.06 0.04 0.02 0 MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32" Runoff Area=25,345 sf Runoff Volume=0.015 af Runoff Depth=0.31" Tc=10.0 min CN=84 0.26 cfs MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 93HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 34oS: Offsite to West South Runoff = 0.15 cfs @ 12.28 hrs, Volume= 0.013 af, Depth= 0.20" Routed to Pond 34P : West - South (existing) Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32" Area (sf) CN Description 32,845 80 >75% Grass cover, Good, HSG D 32,845 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 15.0 Direct Entry, Subcatchment 34oS: Offsite to West South Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.16 0.15 0.14 0.13 0.12 0.11 0.1 0.09 0.08 0.07 0.06 0.05 0.04 0.03 0.02 0.01 0 MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32" Runoff Area=32,845 sf Runoff Volume=0.013 af Runoff Depth=0.20" Tc=15.0 min CN=80 0.15 cfs MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 94HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 34S: West Woods [45] Hint: Runoff=Zero Runoff = 0.00 cfs @ 0.00 hrs, Volume= 0.000 af, Depth= 0.00" Routed to Pond 34P : West - South (existing) Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32" Area (sf) CN Description 105,570 55 Woods, Good, HSG B 105,570 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 8.4 50 0.0600 0.10 Sheet Flow, Woods: Light underbrush n= 0.400 P2= 2.87" 2.7 218 0.0710 1.33 Shallow Concentrated Flow, Woodland Kv= 5.0 fps 11.1 268 Total Subcatchment 34S: West Woods Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)1 0 MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32" Runoff Area=105,570 sf Runoff Volume=0.000 af Runoff Depth=0.00" Flow Length=268' Tc=11.1 min CN=55 0.00 cfs MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 95HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 35S: Southwest [45] Hint: Runoff=Zero Runoff = 0.00 cfs @ 0.00 hrs, Volume= 0.000 af, Depth= 0.00" Routed to Reach 35R : Direct Runoff Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32" Area (sf) CN Description 165,040 55 Woods, Good, HSG B 165,040 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 16.0 75 0.0270 0.08 Sheet Flow, Woods: Light underbrush n= 0.400 P2= 2.87" 2.3 195 0.0820 1.43 Shallow Concentrated Flow, Woodland Kv= 5.0 fps 18.3 270 Total Subcatchment 35S: Southwest Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)1 0 MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32" Runoff Area=165,040 sf Runoff Volume=0.000 af Runoff Depth=0.00" Flow Length=270' Tc=18.3 min CN=55 0.00 cfs MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 96HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 36oS: Southwest Offsite Runoff = 0.07 cfs @ 12.12 hrs, Volume= 0.003 af, Depth= 1.10" Routed to Reach 30R : West Drainage Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32" Area (sf) CN Description 1,628 98 Paved parking, HSG D 1,628 100.00% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 5.0 Direct Entry, Subcatchment 36oS: Southwest Offsite Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.08 0.075 0.07 0.065 0.06 0.055 0.05 0.045 0.04 0.035 0.03 0.025 0.02 0.015 0.01 0.005 0 MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32" Runoff Area=1,628 sf Runoff Volume=0.003 af Runoff Depth=1.10" Tc=5.0 min CN=98 0.07 cfs MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 97HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 40.4S: So. Villas Private Drive Runoff = 1.10 cfs @ 12.21 hrs, Volume= 0.066 af, Depth= 0.55" Routed to Pond 52P : South-Center Temp Basin Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32" Area (sf) CN Description 29,980 80 >75% Grass cover, Good, HSG D 33,565 98 Paved parking, HSG D 63,545 90 Weighted Average 29,980 47.18% Pervious Area 33,565 52.82% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 8.3 70 0.0430 0.14 Sheet Flow, Lawn Grass: Dense n= 0.240 P2= 2.87" 4.7 775 0.0180 2.72 Shallow Concentrated Flow, Street Flow Paved Kv= 20.3 fps 13.0 845 Total Subcatchment 40.4S: So. Villas Private Drive Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)1 0 MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32" Runoff Area=63,545 sf Runoff Volume=0.066 af Runoff Depth=0.55" Flow Length=845' Tc=13.0 min CN=90 1.10 cfs MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 98HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 41.3S: South-West Runoff = 1.09 cfs @ 12.18 hrs, Volume= 0.068 af, Depth= 0.23" Routed to Pond 41.3P : South-West Temp Basin Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32" Area (sf) CN Description 149,020 80 >75% Grass cover, Good, HSG D * 8,290 100 Water 157,310 81 Weighted Average 149,020 94.73% Pervious Area 8,290 5.27% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 7.5 100 0.0450 0.22 Sheet Flow, Grass: Short n= 0.150 P2= 2.87" 1.0 90 0.0450 1.48 Shallow Concentrated Flow, Short Grass Pasture Kv= 7.0 fps 0.4 95 0.3333 4.04 Shallow Concentrated Flow, Short Grass Pasture Kv= 7.0 fps 8.9 285 Total Subcatchment 41.3S: South-West Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)1 0 MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32" Runoff Area=157,310 sf Runoff Volume=0.068 af Runoff Depth=0.23" Flow Length=285' Tc=8.9 min CN=81 1.09 cfs MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 99HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 42.1S: South Fringe Runoff = 0.17 cfs @ 12.14 hrs, Volume= 0.009 af, Depth= 0.20" Routed to Reach 42.2R : Southeast Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32" Area (sf) CN Description 21,960 80 >75% Grass cover, Good, HSG D 21,960 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 5.0 Direct Entry, Subcatchment 42.1S: South Fringe Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.18 0.17 0.16 0.15 0.14 0.13 0.12 0.11 0.1 0.09 0.08 0.07 0.06 0.05 0.04 0.03 0.02 0.01 0 MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32" Runoff Area=21,960 sf Runoff Volume=0.009 af Runoff Depth=0.20" Tc=5.0 min CN=80 0.17 cfs MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 100HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 42.2S: Southeast Fringe Runoff = 0.05 cfs @ 12.14 hrs, Volume= 0.003 af, Depth= 0.16" Routed to Reach 42.2R : Southeast Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32" Area (sf) CN Description 8,870 78 Meadow, non-grazed, HSG D 8,870 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 5.0 Direct Entry, Subcatchment 42.2S: Southeast Fringe Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.05 0.048 0.046 0.044 0.042 0.04 0.038 0.036 0.034 0.032 0.03 0.028 0.026 0.024 0.022 0.02 0.018 0.016 0.014 0.012 0.01 0.008 0.006 0.004 0.002 0 MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32" Runoff Area=8,870 sf Runoff Volume=0.003 af Runoff Depth=0.16" Tc=5.0 min CN=78 0.05 cfs MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 101HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 43.1S: East Woods [45] Hint: Runoff=Zero Runoff = 0.00 cfs @ 0.00 hrs, Volume= 0.000 af, Depth= 0.00" Routed to Reach 40R : South Drainage Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32" Area (sf) CN Description 140,400 55 Woods, Good, HSG B 140,400 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 11.1 75 0.0670 0.11 Sheet Flow, Woods: Light underbrush n= 0.400 P2= 2.87" 4.1 455 0.1380 1.86 Shallow Concentrated Flow, Woodland Kv= 5.0 fps 15.2 530 Total Subcatchment 43.1S: East Woods Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)1 0 MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32" Runoff Area=140,400 sf Runoff Volume=0.000 af Runoff Depth=0.00" Flow Length=530' Tc=15.2 min CN=55 0.00 cfs MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 102HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 43.2S: Northeast Woods [45] Hint: Runoff=Zero Runoff = 0.00 cfs @ 0.00 hrs, Volume= 0.000 af, Depth= 0.00" Routed to Reach 44R : Southwest Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32" Area (sf) CN Description 76,080 55 Woods, Good, HSG B 76,080 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 14.2 100 0.0650 0.12 Sheet Flow, Woods: Light underbrush n= 0.400 P2= 2.87" 5.3 523 0.1080 1.64 Shallow Concentrated Flow, Woodland Kv= 5.0 fps 19.5 623 Total Subcatchment 43.2S: Northeast Woods Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)1 0 MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32" Runoff Area=76,080 sf Runoff Volume=0.000 af Runoff Depth=0.00" Flow Length=623' Tc=19.5 min CN=55 0.00 cfs MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 103HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 44S: North Woods [45] Hint: Runoff=Zero Runoff = 0.00 cfs @ 0.00 hrs, Volume= 0.000 af, Depth= 0.00" Routed to Pond 44P : Wetland 4 Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32" Area (sf) CN Description 446,125 55 Woods, Good, HSG B 446,125 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 20.0 Direct Entry, Subcatchment 44S: North Woods Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)1 0 MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32" Runoff Area=446,125 sf Runoff Volume=0.000 af Runoff Depth=0.00" Tc=20.0 min CN=55 0.00 cfs MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 104HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 46S: Direct to Tri. Basin Runoff = 0.32 cfs @ 12.23 hrs, Volume= 0.024 af, Depth= 0.20" Routed to Pond 46P : Triangle Basin Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32" Area (sf) CN Description 63,170 80 >75% Grass cover, Good, HSG D 63,170 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 3.4 40 0.0500 0.19 Sheet Flow, Grass: Short n= 0.150 P2= 2.87" 8.1 715 0.0440 1.47 Shallow Concentrated Flow, Short Grass Pasture Kv= 7.0 fps 11.5 755 Total Subcatchment 46S: Direct to Tri. Basin Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.36 0.34 0.32 0.3 0.28 0.26 0.24 0.22 0.2 0.18 0.16 0.14 0.12 0.1 0.08 0.06 0.04 0.02 0 MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32" Runoff Area=63,170 sf Runoff Volume=0.024 af Runoff Depth=0.20" Flow Length=755' Tc=11.5 min CN=80 0.32 cfs MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 105HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 46uS: Rear Yards of South Townhomes Runoff = 0.69 cfs @ 12.20 hrs, Volume= 0.041 af, Depth= 0.38" Routed to Reach 46uR : South Swale - at East Property Line of THs Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32" Area (sf) CN Description 38,455 80 >75% Grass cover, Good, HSG D 19,000 98 Unconnected roofs, HSG D 57,455 86 Weighted Average 38,455 66.93% Pervious Area 19,000 33.07% Impervious Area 19,000 100.00% Unconnected Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 3.4 40 0.0500 0.19 Sheet Flow, Grass: Short n= 0.150 P2= 2.87" 8.1 715 0.0440 1.47 Shallow Concentrated Flow, Short Grass Pasture Kv= 7.0 fps 11.5 755 Total Subcatchment 46uS: Rear Yards of South Townhomes Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.75 0.7 0.65 0.6 0.55 0.5 0.45 0.4 0.35 0.3 0.25 0.2 0.15 0.1 0.05 0 MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32" Runoff Area=57,455 sf Runoff Volume=0.041 af Runoff Depth=0.38" Flow Length=755' Tc=11.5 min CN=86 0.69 cfs MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 106HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 47S: Bluff Creek Pkwy - West Runoff = 1.82 cfs @ 12.18 hrs, Volume= 0.099 af, Depth= 0.50" Routed to Pond 47P : Bluff Creek - West Basin - 60" PIPE Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32" Area (sf) CN Description * 52,305 80 >75% Grass cover, Good, HSG D 51,075 98 Paved roads w/curbs & sewers, HSG D 103,380 89 Weighted Average 52,305 50.59% Pervious Area 51,075 49.41% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 10.0 Direct Entry, Subcatchment 47S: Bluff Creek Pkwy - West Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)2 1 0 MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32" Runoff Area=103,380 sf Runoff Volume=0.099 af Runoff Depth=0.50" Tc=10.0 min CN=89 1.82 cfs MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 107HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 48S: Bluff Creek Pkwy - East Runoff = 3.93 cfs @ 12.18 hrs, Volume= 0.210 af, Depth= 0.65" Routed to Pond 48P : Bluff Creek - East Basin Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32" Area (sf) CN Description * 73,780 84 >75% Grass cover, Good, HSG D 94,920 98 Paved roads w/curbs & sewers, HSG D 168,700 92 Weighted Average 73,780 43.73% Pervious Area 94,920 56.27% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 10.0 Direct Entry, Subcatchment 48S: Bluff Creek Pkwy - East Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)4 3 2 1 0 MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32" Runoff Area=168,700 sf Runoff Volume=0.210 af Runoff Depth=0.65" Tc=10.0 min CN=92 3.93 cfs MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 108HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 52S: South - Center Runoff = 0.96 cfs @ 12.48 hrs, Volume= 0.113 af, Depth= 0.20" Routed to Pond 52P : South-Center Temp Basin Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32" Area (sf) CN Description 292,770 80 >75% Grass cover, Good, HSG D 292,770 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 13.7 100 0.0100 0.12 Sheet Flow, Grass: Short n= 0.150 P2= 2.87" 13.3 560 0.0100 0.70 Shallow Concentrated Flow, Short Grass Pasture Kv= 7.0 fps 27.0 660 Total Subcatchment 52S: South - Center Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)1 0 MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32" Runoff Area=292,770 sf Runoff Volume=0.113 af Runoff Depth=0.20" Flow Length=660' Slope=0.0100 '/' Tc=27.0 min CN=80 0.96 cfs MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 109HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 54S: South - East Runoff = 0.86 cfs @ 12.49 hrs, Volume= 0.103 af, Depth= 0.20" Routed to Pond 54P : South-East Temp Basin Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32" Area (sf) CN Description 266,110 80 >75% Grass cover, Good, HSG D 266,110 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 14.3 168 0.0250 0.20 Sheet Flow, Grass: Short n= 0.150 P2= 2.87" 8.4 250 0.0050 0.49 Shallow Concentrated Flow, Short Grass Pasture Kv= 7.0 fps 5.0 Direct Entry, Pipe flow 27.7 418 Total Subcatchment 54S: South - East Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.95 0.9 0.85 0.8 0.75 0.7 0.65 0.6 0.55 0.5 0.45 0.4 0.35 0.3 0.25 0.2 0.15 0.1 0.05 0 MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32" Runoff Area=266,110 sf Runoff Volume=0.103 af Runoff Depth=0.20" Flow Length=418' Tc=27.7 min CN=80 0.86 cfs MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 110HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 55S: Direct to Bluff Creek - East Basin Runoff = 1.27 cfs @ 12.14 hrs, Volume= 0.065 af, Depth= 0.20" Routed to Pond 48P : Bluff Creek - East Basin Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32" Area (sf) CN Description 167,215 80 >75% Grass cover, Good, HSG D 167,215 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 5.0 Direct Entry, Subcatchment 55S: Direct to Bluff Creek - East Basin Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)1 0 MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32" Runoff Area=167,215 sf Runoff Volume=0.065 af Runoff Depth=0.20" Tc=5.0 min CN=80 1.27 cfs MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 111HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Reach 20R: Northwest Drainage [40] Hint: Not Described (Outflow=Inflow) Inflow Area = 18.081 ac, 25.74% Impervious, Inflow Depth > 0.08" for 1.1 Inch Equiv. event Inflow = 0.19 cfs @ 12.23 hrs, Volume= 0.125 af Outflow = 0.19 cfs @ 12.23 hrs, Volume= 0.125 af, Atten= 0%, Lag= 0.0 min Routed to Reach 50R : Bluff Creek Drainage Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Reach 20R: Northwest Drainage Inflow Outflow Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.21 0.2 0.19 0.18 0.17 0.16 0.15 0.14 0.13 0.12 0.11 0.1 0.09 0.08 0.07 0.06 0.05 0.04 0.03 0.02 0.01 0 Inflow Area=18.081 ac 0.19 cfs 0.19 cfs MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 112HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Reach 21R: Wetland 6 Lower Reach Inflow Area = 18.081 ac, 25.74% Impervious, Inflow Depth > 0.08" for 1.1 Inch Equiv. event Inflow = 0.37 cfs @ 12.14 hrs, Volume= 0.125 af Outflow = 0.19 cfs @ 12.23 hrs, Volume= 0.125 af, Atten= 48%, Lag= 5.8 min Routed to Reach 20R : Northwest Drainage Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Max. Velocity= 0.34 fps, Min. Travel Time= 9.2 min Avg. Velocity = 0.21 fps, Avg. Travel Time= 14.8 min Peak Storage= 106 cf @ 12.23 hrs Average Depth at Peak Storage= 0.12' , Surface Width= 9.20' Bank-Full Depth= 5.99' Flow Area= 570.1 sf, Capacity= 3,072.14 cfs Custom cross-section, Length= 187.0' Slope= 0.0053 '/' (102 Elevation Intervals) Constant n= 0.050 Scattered brush, heavy weeds Inlet Invert= 885.00', Outlet Invert= 884.00' ‡ Offset Elevation Chan.Depth (feet) (feet) (feet) 0.00 890.40 0.00 43.10 886.55 3.85 85.60 884.41 5.99 126.20 885.14 5.26 145.10 890.40 0.00 Depth End Area Perim. Width Storage Discharge (feet) (sq-ft) (feet) (feet) (cubic-feet) (cfs) 0.00 0.0 0.0 0.0 0 0.00 0.73 20.1 55.1 55.1 3,761 22.32 2.14 121.1 88.4 88.2 22,648 324.64 5.99 570.1 146.1 145.1 106,618 3,072.14 MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 113HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Reach 21R: Wetland 6 Lower Reach Inflow Outflow Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.4 0.38 0.36 0.34 0.32 0.3 0.28 0.26 0.24 0.22 0.2 0.18 0.16 0.14 0.12 0.1 0.08 0.06 0.04 0.02 0 Inflow Area=18.081 ac Avg. Flow Depth=0.12' Max Vel=0.34 fps n=0.050 L=187.0' S=0.0053 '/' Capacity=3,072.14 cfs 0.37 cfs 0.19 cfs MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 114HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Reach 30R: West Drainage [40] Hint: Not Described (Outflow=Inflow) Inflow Area = 12.829 ac, 7.58% Impervious, Inflow Depth = 0.16" for 1.1 Inch Equiv. event Inflow = 0.43 cfs @ 12.33 hrs, Volume= 0.168 af Outflow = 0.43 cfs @ 12.33 hrs, Volume= 0.168 af, Atten= 0%, Lag= 0.0 min Routed to Reach 50R : Bluff Creek Drainage Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Reach 30R: West Drainage Inflow Outflow Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.48 0.46 0.44 0.42 0.4 0.38 0.36 0.34 0.32 0.3 0.28 0.26 0.24 0.22 0.2 0.18 0.16 0.14 0.12 0.1 0.08 0.06 0.04 0.02 0 Inflow Area=12.829 ac 0.43 cfs 0.43 cfs MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 115HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Reach 35R: Direct Runoff [40] Hint: Not Described (Outflow=Inflow) Inflow Area = 4.371 ac, 2.99% Impervious, Inflow Depth = 0.04" for 1.1 Inch Equiv. event Inflow = 0.26 cfs @ 12.19 hrs, Volume= 0.015 af Outflow = 0.26 cfs @ 12.19 hrs, Volume= 0.015 af, Atten= 0%, Lag= 0.0 min Routed to Reach 30R : West Drainage Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Reach 35R: Direct Runoff Inflow Outflow Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.28 0.26 0.24 0.22 0.2 0.18 0.16 0.14 0.12 0.1 0.08 0.06 0.04 0.02 0 Inflow Area=4.371 ac 0.26 cfs 0.26 cfs MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 116HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Reach 40R: South Drainage [40] Hint: Not Described (Outflow=Inflow) Inflow Area = 47.277 ac, 10.23% Impervious, Inflow Depth = 0.21" for 1.1 Inch Equiv. event Inflow = 0.87 cfs @ 13.95 hrs, Volume= 0.815 af Outflow = 0.87 cfs @ 13.95 hrs, Volume= 0.815 af, Atten= 0%, Lag= 0.0 min Routed to Reach 50R : Bluff Creek Drainage Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Reach 40R: South Drainage Inflow Outflow Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.95 0.9 0.85 0.8 0.75 0.7 0.65 0.6 0.55 0.5 0.45 0.4 0.35 0.3 0.25 0.2 0.15 0.1 0.05 0 Inflow Area=47.277 ac 0.87 cfs 0.87 cfs MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 117HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Reach 42.2R: Southeast [40] Hint: Not Described (Outflow=Inflow) Inflow Area = 14.645 ac, 15.49% Impervious, Inflow Depth > 0.32" for 1.1 Inch Equiv. event Inflow = 0.35 cfs @ 16.45 hrs, Volume= 0.396 af Outflow = 0.35 cfs @ 16.45 hrs, Volume= 0.396 af, Atten= 0%, Lag= 0.0 min Routed to Reach 40R : South Drainage Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Reach 42.2R: Southeast Inflow Outflow Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.38 0.36 0.34 0.32 0.3 0.28 0.26 0.24 0.22 0.2 0.18 0.16 0.14 0.12 0.1 0.08 0.06 0.04 0.02 0 Inflow Area=14.645 ac 0.35 cfs 0.35 cfs MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 118HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Reach 44R: Southwest [40] Hint: Not Described (Outflow=Inflow) Inflow Area = 29.409 ac, 8.74% Impervious, Inflow Depth = 0.17" for 1.1 Inch Equiv. event Inflow = 0.60 cfs @ 13.57 hrs, Volume= 0.419 af Outflow = 0.60 cfs @ 13.57 hrs, Volume= 0.419 af, Atten= 0%, Lag= 0.0 min Routed to Reach 40R : South Drainage Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Reach 44R: Southwest Inflow Outflow Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.65 0.6 0.55 0.5 0.45 0.4 0.35 0.3 0.25 0.2 0.15 0.1 0.05 0 Inflow Area=29.409 ac 0.60 cfs 0.60 cfs MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 119HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Reach 46uR: South Swale - at East Property Line of THs Inflow Area = 1.319 ac, 33.07% Impervious, Inflow Depth = 0.38" for 1.1 Inch Equiv. event Inflow = 0.69 cfs @ 12.20 hrs, Volume= 0.041 af Outflow = 0.69 cfs @ 12.21 hrs, Volume= 0.041 af, Atten= 0%, Lag= 0.2 min Routed to Pond 46P : Triangle Basin Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Max. Velocity= 2.07 fps, Min. Travel Time= 0.3 min Avg. Velocity = 0.56 fps, Avg. Travel Time= 1.0 min Peak Storage= 11 cf @ 12.21 hrs Average Depth at Peak Storage= 0.10' , Surface Width= 3.60' Bank-Full Depth= 0.50' Flow Area= 2.3 sf, Capacity= 11.72 cfs 3.00' x 0.50' deep channel, n= 0.025 Short grass Side Slope Z-value= 3.0 '/' Top Width= 6.00' Length= 34.0' Slope= 0.0294 '/' Inlet Invert= 894.00', Outlet Invert= 893.00' ‡ Reach 46uR: South Swale - at East Property Line of THs Inflow Outflow Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.75 0.7 0.65 0.6 0.55 0.5 0.45 0.4 0.35 0.3 0.25 0.2 0.15 0.1 0.05 0 Inflow Area=1.319 ac Avg. Flow Depth=0.10' Max Vel=2.07 fps n=0.025 L=34.0' S=0.0294 '/' Capacity=11.72 cfs 0.69 cfs 0.69 cfs MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 120HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Reach 48R: Developed Area To Wetland 4 [40] Hint: Not Described (Outflow=Inflow) Inflow Area = 2.860 ac, 40.99% Impervious, Inflow Depth = 0.45" for 1.1 Inch Equiv. event Inflow = 0.12 cfs @ 12.01 hrs, Volume= 0.107 af Outflow = 0.12 cfs @ 12.01 hrs, Volume= 0.107 af, Atten= 0%, Lag= 0.0 min Routed to Pond 44P : Wetland 4 Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Reach 48R: Developed Area To Wetland 4 Inflow Outflow Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.13 0.12 0.11 0.1 0.09 0.08 0.07 0.06 0.05 0.04 0.03 0.02 0.01 0 Inflow Area=2.860 ac 0.12 cfs 0.12 cfs MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 121HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Reach 50R: Bluff Creek Drainage [40] Hint: Not Described (Outflow=Inflow) Inflow Area = 78.187 ac, 13.39% Impervious, Inflow Depth > 0.17" for 1.1 Inch Equiv. event Inflow = 1.21 cfs @ 13.53 hrs, Volume= 1.107 af Outflow = 1.21 cfs @ 13.53 hrs, Volume= 1.107 af, Atten= 0%, Lag= 0.0 min Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Reach 50R: Bluff Creek Drainage Inflow Outflow Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)1 0 Inflow Area=78.187 ac 1.21 cfs 1.21 cfs MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 122HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Pond 21P: Northwest Basin w Filtration Inflow Area = 16.882 ac, 27.57% Impervious, Inflow Depth = 0.36" for 1.1 Inch Equiv. event Inflow = 1.88 cfs @ 12.27 hrs, Volume= 0.510 af Outflow = 0.04 cfs @ 31.58 hrs, Volume= 0.105 af, Atten= 98%, Lag= 1,158.5 min Primary = 0.04 cfs @ 31.58 hrs, Volume= 0.105 af Routed to Reach 21R : Wetland 6 Lower Reach Secondary = 0.00 cfs @ 0.00 hrs, Volume= 0.000 af Routed to Reach 21R : Wetland 6 Lower Reach Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 893.18' @ 31.58 hrs Surf.Area= 31,709 sf Storage= 20,098 cf Plug-Flow detention time= 2,706.0 min calculated for 0.105 af (21% of inflow) Center-of-Mass det. time= 2,391.7 min ( 3,447.7 - 1,056.0 ) Volume Invert Avail.Storage Storage Description #1 892.50' 158,719 cf Open Pond (Prismatic) Listed below (Recalc) Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 892.50 8,125 0 0 892.54 8,180 326 326 892.55 30,215 192 518 893.00 31,280 13,836 14,354 894.00 33,630 32,455 46,809 895.00 36,050 34,840 81,649 896.00 38,530 37,290 118,939 897.00 41,030 39,780 158,719 Device Routing Invert Outlet Devices #1 Primary 887.86'18.0" Round Culvert L= 30.0' RCP, sq.cut end projecting, Ke= 0.500 Inlet / Outlet Invert= 887.86' / 887.71' S= 0.0050 '/' Cc= 0.900 n= 0.011 Concrete pipe, straight & clean, Flow Area= 1.77 sf #2 Device 1 889.70'8.0" Vert. Orifice - Underdrain C= 0.600 Limited to weir flow at low heads #3 Device 1 893.10'18.0" Vert. Orifice - Overflow C= 0.600 Limited to weir flow at low heads #4 Device 2 892.50'0.800 in/hr Exfiltration over Surface area from 891.69' - 891.74' Excluded Surface area = 0 sf Phase-In= 0.01' #5 Secondary 896.75'20.0' long x 30.0' breadth Broad-Crested Rectangular Weir Head (feet) 0.20 0.40 0.60 0.80 1.00 1.20 1.40 1.60 Coef. (English) 2.68 2.70 2.70 2.64 2.63 2.64 2.64 2.63 MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 123HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Primary OutFlow Max=0.04 cfs @ 31.58 hrs HW=893.18' TW=885.06' (Dynamic Tailwater) 1=Culvert (Passes 0.04 cfs of 18.19 cfs potential flow) 2=Orifice - Underdrain (Passes 0.00 cfs of 2.98 cfs potential flow) 4=Exfiltration (Exfiltration Controls 0.00 cfs) 3=Orifice - Overflow (Orifice Controls 0.04 cfs @ 0.98 fps) Secondary OutFlow Max=0.00 cfs @ 0.00 hrs HW=892.50' TW=885.00' (Dynamic Tailwater) 5=Broad-Crested Rectangular Weir ( Controls 0.00 cfs) Pond 21P: Northwest Basin w Filtration Inflow Outflow Primary Secondary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)2 1 0 Inflow Area=16.882 ac Peak Elev=893.18' Storage=20,098 cf 1.88 cfs 0.04 cfs 0.04 cfs 0.00 cfs MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 124HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Pond 25P: West-North w Filtration Inflow Area = 4.570 ac, 58.96% Impervious, Inflow Depth = 0.60" for 1.1 Inch Equiv. event Inflow = 4.24 cfs @ 12.18 hrs, Volume= 0.227 af Outflow = 0.33 cfs @ 11.81 hrs, Volume= 0.227 af, Atten= 92%, Lag= 0.0 min Primary = 0.33 cfs @ 11.81 hrs, Volume= 0.227 af Routed to Pond 21P : Northwest Basin w Filtration Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 915.58' @ 13.37 hrs Surf.Area= 17,854 sf Storage= 4,789 cf Plug-Flow detention time= 129.3 min calculated for 0.227 af (100% of inflow) Center-of-Mass det. time= 129.3 min ( 945.7 - 816.5 ) Volume Invert Avail.Storage Storage Description #1 914.93' 36,108 cf Rock Bed (Prismatic) Listed below (Recalc) 90,520 cf Overall - 249 cf Embedded = 90,271 cf x 40.0% Voids #2 914.94' 249 cf 8.0" Round Pipe Storage Inside #1 L= 714.0' 36,357 cf Total Available Storage Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 914.93 17,854 0 0 920.00 17,854 90,520 90,520 Device Routing Invert Outlet Devices #1 Primary 908.00'18.0" Round Culvert L= 164.0' RCP, sq.cut end projecting, Ke= 0.500 Inlet / Outlet Invert= 908.00' / 905.82' S= 0.0133 '/' Cc= 0.900 n= 0.011 Concrete pipe, straight & clean, Flow Area= 1.77 sf #2 Device 1 912.63'8.0" Vert. Underdrain C= 0.600 Limited to weir flow at low heads #3 Device 1 915.67'18.0" Vert. Overflow C= 0.600 Limited to weir flow at low heads #4 Device 2 914.93'0.800 in/hr Filtration over Surface area Phase-In= 0.01' Primary OutFlow Max=0.33 cfs @ 11.81 hrs HW=914.94' TW=892.54' (Dynamic Tailwater) 1=Culvert (Passes 0.33 cfs of 20.50 cfs potential flow) 2=Underdrain (Passes 0.33 cfs of 2.36 cfs potential flow) 4=Filtration (Exfiltration Controls 0.33 cfs) 3=Overflow ( Controls 0.00 cfs) MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 125HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Pond 25P: West-North w Filtration Inflow Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)4 3 2 1 0 Inflow Area=4.570 ac Peak Elev=915.58' Storage=4,789 cf 4.24 cfs 0.33 cfs MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 126HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Pond 28P: Avienda Pkwy Surface Basin NOT UPDATED [44] Hint: Outlet device #3 is below defined storage Inflow Area = 5.809 ac, 26.23% Impervious, Inflow Depth = 0.33" for 1.1 Inch Equiv. event Inflow = 2.24 cfs @ 12.25 hrs, Volume= 0.160 af Outflow = 0.13 cfs @ 15.08 hrs, Volume= 0.160 af, Atten= 94%, Lag= 169.7 min Primary = 0.13 cfs @ 15.08 hrs, Volume= 0.160 af Routed to Pond 21P : Northwest Basin w Filtration Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 912.66' @ 15.08 hrs Surf.Area= 31,515 sf Storage= 4,143 cf Plug-Flow detention time= (not calculated: outflow precedes inflow) Center-of-Mass det. time= 509.9 min ( 1,357.3 - 847.4 ) Volume Invert Avail.Storage Storage Description #1 912.53' 292,399 cf Open Pond (Prismatic) Listed below (Recalc) Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 912.53 30,930 0 0 919.00 59,456 292,399 292,399 Device Routing Invert Outlet Devices #1 Primary 908.15'12.0" Round Culvert L= 159.0' RCP, square edge headwall, Ke= 0.500 Inlet / Outlet Invert= 908.15' / 906.81' S= 0.0084 '/' Cc= 0.900 n= 0.013 Concrete pipe, straight & clean, Flow Area= 0.79 sf #2 Device 1 909.73'12.0" Round Culvert L= 165.0' RCP, square edge headwall, Ke= 0.500 Inlet / Outlet Invert= 909.73' / 908.15' S= 0.0096 '/' Cc= 0.900 n= 0.013 Concrete pipe, straight & clean, Flow Area= 0.79 sf #3 Device 2 912.45'12.0" Round Culvert L= 17.0' RCP, end-section conforming to fill, Ke= 0.500 Inlet / Outlet Invert= 912.45' / 912.37' S= 0.0047 '/' Cc= 0.900 n= 0.013 Concrete pipe, straight & clean, Flow Area= 0.79 sf Primary OutFlow Max=0.13 cfs @ 15.08 hrs HW=912.66' TW=892.84' (Dynamic Tailwater) 1=Culvert (Passes 0.13 cfs of 5.45 cfs potential flow) 2=Culvert (Passes 0.13 cfs of 4.57 cfs potential flow) 3=Culvert (Barrel Controls 0.13 cfs @ 1.60 fps) MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 127HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Pond 28P: Avienda Pkwy Surface Basin NOT UPDATED Inflow Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)2 1 0 Inflow Area=5.809 ac Peak Elev=912.66' Storage=4,143 cf 2.24 cfs 0.13 cfs MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 128HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Pond 31P: West-Central Surface Basin w Filtration Inflow Area = 0.876 ac, 35.33% Impervious, Inflow Depth = 0.38" for 1.1 Inch Equiv. event Inflow = 0.43 cfs @ 12.23 hrs, Volume= 0.028 af Outflow = 0.10 cfs @ 12.68 hrs, Volume= 0.028 af, Atten= 76%, Lag= 27.3 min Primary = 0.10 cfs @ 12.68 hrs, Volume= 0.028 af Routed to Pond 33P : Wetland 3 Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 924.07' @ 12.68 hrs Surf.Area= 5,450 sf Storage= 364 cf Plug-Flow detention time= 29.8 min calculated for 0.028 af (100% of inflow) Center-of-Mass det. time= 29.8 min ( 870.6 - 840.8 ) Volume Invert Avail.Storage Storage Description #1 924.00' 13,385 cf Surface Basin (Prismatic) Listed below (Recalc) Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 924.00 5,360 0 0 926.00 8,025 13,385 13,385 Device Routing Invert Outlet Devices #1 Primary 920.93'15.0" Round Culvert L= 42.0' RCP, sq.cut end projecting, Ke= 0.500 Inlet / Outlet Invert= 920.93' / 920.80' S= 0.0031 '/' Cc= 0.900 n= 0.011 Concrete pipe, straight & clean, Flow Area= 1.23 sf #2 Device 1 920.93'8.0" Vert. Orifice/Grate - Underdrain C= 0.600 Limited to weir flow at low heads #3 Device 1 925.00'8.0" Vert. Orifice/Grate - Overflow C= 0.600 Limited to weir flow at low heads #4 Device 2 924.00'0.800 in/hr Filtration over Horizontal area above 923.22' Excluded Horizontal area = 0 sf Phase-In= 0.01' Primary OutFlow Max=0.10 cfs @ 12.68 hrs HW=924.07' TW=920.82' (Dynamic Tailwater) 1=Culvert (Passes 0.10 cfs of 9.37 cfs potential flow) 2=Orifice/Grate - Underdrain (Passes 0.10 cfs of 2.81 cfs potential flow) 4=Filtration (Exfiltration Controls 0.10 cfs) 3=Orifice/Grate - Overflow ( Controls 0.00 cfs) MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 129HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Pond 31P: West-Central Surface Basin w Filtration Inflow Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.46 0.44 0.42 0.4 0.38 0.36 0.34 0.32 0.3 0.28 0.26 0.24 0.22 0.2 0.18 0.16 0.14 0.12 0.1 0.08 0.06 0.04 0.02 0 Inflow Area=0.876 ac Peak Elev=924.07' Storage=364 cf 0.43 cfs 0.10 cfs MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 130HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Pond 33P: Wetland 3 Inflow Area = 5.243 ac, 15.35% Impervious, Inflow Depth = 0.31" for 1.1 Inch Equiv. event Inflow = 1.88 cfs @ 12.18 hrs, Volume= 0.137 af Outflow = 0.28 cfs @ 13.48 hrs, Volume= 0.137 af, Atten= 85%, Lag= 78.1 min Primary = 0.28 cfs @ 13.48 hrs, Volume= 0.137 af Routed to Pond 34P : West - South (existing) Secondary = 0.00 cfs @ 0.00 hrs, Volume= 0.000 af Routed to Reach 30R : West Drainage Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 920.84' @ 13.48 hrs Surf.Area= 18,440 sf Storage= 2,388 cf Plug-Flow detention time= 141.6 min calculated for 0.137 af (100% of inflow) Center-of-Mass det. time= 152.7 min ( 1,003.9 - 851.2 ) Volume Invert Avail.Storage Storage Description #1 920.58' 140,121 cf Custom Stage Data (Prismatic) Listed below (Recalc) Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 920.58 100 0 0 921.00 30,000 6,321 6,321 922.00 68,200 49,100 55,421 923.00 101,200 84,700 140,121 Device Routing Invert Outlet Devices #1 Primary 920.58'12.0" Round Culvert L= 455.0' RCP, end-section conforming to fill, Ke= 0.500 Inlet / Outlet Invert= 920.58' / 911.02' S= 0.0210 '/' Cc= 0.900 n= 0.013 Concrete pipe, straight & clean, Flow Area= 0.79 sf #2 Secondary 921.90'Asymmetrical Weir, C= 3.27 Offset (feet) 0.00 19.00 40.00 50.00 76.00 103.00 Height (feet) 1.50 0.50 0.00 0.00 0.50 1.50 Primary OutFlow Max=0.28 cfs @ 13.48 hrs HW=920.84' TW=907.25' (Dynamic Tailwater) 1=Culvert (Inlet Controls 0.28 cfs @ 1.73 fps) Secondary OutFlow Max=0.00 cfs @ 0.00 hrs HW=920.58' TW=0.00' (Dynamic Tailwater) 2=Asymmetrical Weir ( Controls 0.00 cfs) MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 131HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Pond 33P: Wetland 3 Inflow Outflow Primary Secondary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)2 1 0 Inflow Area=5.243 ac Peak Elev=920.84' Storage=2,388 cf 1.88 cfs 0.28 cfs 0.28 cfs 0.00 cfs MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 132HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Pond 34P: West - South (existing) Inflow Area = 8.421 ac, 9.56% Impervious, Inflow Depth = 0.21" for 1.1 Inch Equiv. event Inflow = 0.32 cfs @ 12.42 hrs, Volume= 0.150 af Outflow = 0.31 cfs @ 12.56 hrs, Volume= 0.150 af, Atten= 1%, Lag= 8.3 min Primary = 0.31 cfs @ 12.56 hrs, Volume= 0.150 af Routed to Reach 30R : West Drainage Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 907.26' @ 12.56 hrs Surf.Area= 0.014 ac Storage= 0.002 af Plug-Flow detention time= (not calculated: outflow precedes inflow) Center-of-Mass det. time= 5.7 min ( 998.4 - 992.7 ) Volume Invert Avail.Storage Storage Description #1 907.00' 1.603 af Custom Stage Data (Prismatic) Listed below (Recalc) Elevation Surf.Area Inc.Store Cum.Store (feet) (acres) (acre-feet) (acre-feet) 907.00 0.000 0.000 0.000 908.00 0.055 0.028 0.028 909.00 0.208 0.131 0.159 910.00 0.413 0.310 0.469 911.00 0.573 0.493 0.962 912.00 0.709 0.641 1.603 Device Routing Invert Outlet Devices #1 Primary 907.00'15.0" Round Culvert L= 48.8' RCP, end-section conforming to fill, Ke= 0.500 Inlet / Outlet Invert= 907.00' / 906.00' S= 0.0205 '/' Cc= 0.900 n= 0.013 Concrete pipe, straight & clean, Flow Area= 1.23 sf #2 Primary 911.22'Asymmetrical Weir, C= 3.27 Offset (feet) 0.00 12.00 18.00 28.00 49.00 88.00 Height (feet) 1.35 0.02 0.00 0.15 0.70 1.35 Primary OutFlow Max=0.31 cfs @ 12.56 hrs HW=907.26' TW=0.00' (Dynamic Tailwater) 1=Culvert (Inlet Controls 0.31 cfs @ 1.73 fps) 2=Asymmetrical Weir ( Controls 0.00 cfs) MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 133HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Pond 34P: West - South (existing) Inflow Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.34 0.32 0.3 0.28 0.26 0.24 0.22 0.2 0.18 0.16 0.14 0.12 0.1 0.08 0.06 0.04 0.02 0 Inflow Area=8.421 ac Peak Elev=907.26' Storage=0.002 af 0.32 cfs 0.31 cfs MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 134HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Pond 41.3P: South-West Temp Basin Inflow Area = 14.560 ac, 9.59% Impervious, Inflow Depth = 0.26" for 1.1 Inch Equiv. event Inflow = 2.19 cfs @ 12.24 hrs, Volume= 0.314 af Outflow = 0.48 cfs @ 13.57 hrs, Volume= 0.313 af, Atten= 78%, Lag= 79.6 min Primary = 0.48 cfs @ 13.57 hrs, Volume= 0.313 af Routed to Reach 44R : Southwest Secondary = 0.00 cfs @ 0.00 hrs, Volume= 0.000 af Routed to Reach 44R : Southwest Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 876.07' @ 13.57 hrs Surf.Area= 13,033 sf Storage= 4,807 cf Plug-Flow detention time= 320.6 min calculated for 0.313 af (100% of inflow) Center-of-Mass det. time= 314.3 min ( 1,330.0 - 1,015.7 ) Volume Invert Avail.Storage Storage Description #1 875.63' 126,081 cf Surface Basin (Prismatic) Listed below (Recalc) Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 875.63 8,290 0 0 876.00 12,755 3,893 3,893 878.00 20,605 33,360 37,253 879.00 26,525 23,565 60,818 880.00 32,000 29,263 90,081 881.00 40,000 36,000 126,081 Device Routing Invert Outlet Devices #1 Primary 875.63'15.0" Round Culvert L= 46.0' RCP, end-section conforming to fill, Ke= 0.500 Inlet / Outlet Invert= 875.63' / 875.00' S= 0.0137 '/' Cc= 0.900 n= 0.011 Concrete pipe, straight & clean, Flow Area= 1.23 sf #2 Secondary 877.00'24.0" Round Culvert L= 46.0' RCP, end-section conforming to fill, Ke= 0.500 Inlet / Outlet Invert= 877.00' / 876.37' S= 0.0137 '/' Cc= 0.900 n= 0.011 Concrete pipe, straight & clean, Flow Area= 3.14 sf #3 Device 1 875.63'8.0" Round Culvert L= 8.0' CPP, square edge headwall, Ke= 0.500 Inlet / Outlet Invert= 875.63' / 875.52' S= 0.0138 '/' Cc= 0.900 n= 0.011 PVC, smooth interior, Flow Area= 0.35 sf Primary OutFlow Max=0.48 cfs @ 13.57 hrs HW=876.07' TW=0.00' (Dynamic Tailwater) 1=Culvert (Passes 0.48 cfs of 0.87 cfs potential flow) 3=Culvert (Barrel Controls 0.48 cfs @ 2.80 fps) Secondary OutFlow Max=0.00 cfs @ 0.00 hrs HW=875.63' TW=0.00' (Dynamic Tailwater) 2=Culvert ( Controls 0.00 cfs) MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 135HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Pond 41.3P: South-West Temp Basin Inflow Outflow Primary Secondary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)2 1 0 Inflow Area=14.560 ac Peak Elev=876.07' Storage=4,807 cf 2.19 cfs 0.48 cfs 0.48 cfs 0.00 cfs MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 136HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Pond 44P: Wetland 4 Inflow Area = 13.102 ac, 8.95% Impervious, Inflow Depth = 0.10" for 1.1 Inch Equiv. event Inflow = 0.12 cfs @ 12.01 hrs, Volume= 0.107 af Outflow = 0.12 cfs @ 14.32 hrs, Volume= 0.106 af, Atten= 0%, Lag= 138.6 min Primary = 0.12 cfs @ 14.32 hrs, Volume= 0.106 af Routed to Reach 44R : Southwest Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 884.10' @ 13.84 hrs Surf.Area= 1,097 sf Storage= 101 cf Plug-Flow detention time= 17.5 min calculated for 0.106 af (99% of inflow) Center-of-Mass det. time= 15.1 min ( 1,041.4 - 1,026.3 ) Volume Invert Avail.Storage Storage Description #1 884.00' 37,633 cf Custom Stage Data (Prismatic) Listed below (Recalc) Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 884.00 870 0 0 884.50 1,980 713 713 885.00 3,500 1,370 2,083 886.00 7,800 5,650 7,733 887.00 14,000 10,900 18,633 888.00 24,000 19,000 37,633 Device Routing Invert Outlet Devices #1 Primary 884.03'Asymmetrical Weir, C= 3.27 Offset (feet) 0.00 51.00 133.60 176.00 217.30 239.00 Elev. (feet) 889.78 886.05 884.03 885.84 889.00 889.78 Primary OutFlow Max=0.12 cfs @ 14.32 hrs HW=884.10' TW=0.00' (Dynamic Tailwater) 1=Asymmetrical Weir (Weir Controls 0.12 cfs @ 0.35 fps) MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 137HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Pond 44P: Wetland 4 Inflow Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.13 0.12 0.11 0.1 0.09 0.08 0.07 0.06 0.05 0.04 0.03 0.02 0.01 0 Inflow Area=13.102 ac Peak Elev=884.10' Storage=101 cf 0.12 cfs 0.12 cfs MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 138HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Pond 46P: Triangle Basin Inflow Area = 2.769 ac, 15.75% Impervious, Inflow Depth = 0.29" for 1.1 Inch Equiv. event Inflow = 1.01 cfs @ 12.21 hrs, Volume= 0.066 af Outflow = 0.04 cfs @ 15.30 hrs, Volume= 0.066 af, Atten= 96%, Lag= 185.2 min Primary = 0.04 cfs @ 15.30 hrs, Volume= 0.066 af Routed to Pond 41.3P : South-West Temp Basin Secondary = 0.00 cfs @ 0.00 hrs, Volume= 0.000 af Routed to Pond 41.3P : South-West Temp Basin Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 888.04' @ 15.30 hrs Surf.Area= 2,700 sf Storage= 1,869 cf Plug-Flow detention time= 736.5 min calculated for 0.066 af (100% of inflow) Center-of-Mass det. time= 736.5 min ( 1,587.1 - 850.6 ) Volume Invert Avail.Storage Storage Description #1 887.17' 14,801 cf Open pond (Prismatic) Listed below (Recalc) Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 887.17 1,586 0 0 890.90 6,350 14,801 14,801 Device Routing Invert Outlet Devices #1 Primary 884.37'18.0" Round Culvert L= 125.0' RCP, sq.cut end projecting, Ke= 0.500 Inlet / Outlet Invert= 884.37' / 875.62' S= 0.0700 '/' Cc= 0.900 n= 0.011 Concrete pipe, straight & clean, Flow Area= 1.77 sf #2 Device 1 888.00'15.0" Vert. Orifice/Grate C= 0.600 Limited to weir flow at low heads #3 Secondary 890.75'20.0' long x 5.0' breadth Broad-Crested Rectangular Weir Head (feet) 0.20 0.40 0.60 0.80 1.00 1.20 1.40 1.60 1.80 2.00 2.50 3.00 3.50 4.00 4.50 5.00 5.50 Coef. (English) 2.34 2.50 2.70 2.68 2.68 2.66 2.65 2.65 2.65 2.65 2.67 2.66 2.68 2.70 2.74 2.79 2.88 #4 Device 1 887.17'0.450 in/hr Filtration over Surface area Phase-In= 0.01' Primary OutFlow Max=0.04 cfs @ 15.30 hrs HW=888.04' TW=876.00' (Dynamic Tailwater) 1=Culvert (Passes 0.04 cfs of 14.55 cfs potential flow) 2=Orifice/Grate (Orifice Controls 0.01 cfs @ 0.70 fps) 4=Filtration (Exfiltration Controls 0.03 cfs) Secondary OutFlow Max=0.00 cfs @ 0.00 hrs HW=887.17' TW=875.63' (Dynamic Tailwater) 3=Broad-Crested Rectangular Weir ( Controls 0.00 cfs) MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 139HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Pond 46P: Triangle Basin Inflow Outflow Primary Secondary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)1 0 Inflow Area=2.769 ac Peak Elev=888.04' Storage=1,869 cf 1.01 cfs 0.04 cfs 0.04 cfs 0.00 cfs MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 140HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Pond 47P: Bluff Creek - West Basin - 60" PIPE Inflow Area = 2.860 ac, 40.99% Impervious, Inflow Depth = 0.45" for 1.1 Inch Equiv. event Inflow = 1.94 cfs @ 12.18 hrs, Volume= 0.107 af Outflow = 0.12 cfs @ 12.01 hrs, Volume= 0.107 af, Atten= 94%, Lag= 0.0 min Primary = 0.12 cfs @ 12.01 hrs, Volume= 0.107 af Routed to Reach 48R : Developed Area To Wetland 4 Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 908.86' @ 13.62 hrs Surf.Area= 6,385 sf Storage= 2,427 cf Plug-Flow detention time= 198.3 min calculated for 0.107 af (100% of inflow) Center-of-Mass det. time= 198.3 min ( 1,026.3 - 828.0 ) Volume Invert Avail.Storage Storage Description #1A 908.00' 8,037 cf 56.09'W x 113.17'L x 6.08'H Field A 38,615 cf Overall - 18,524 cf Embedded = 20,091 cf x 40.0% Voids #2A 908.00' 15,598 cf ADS N-12 60" x 35 Inside #1 Inside= 59.5"W x 59.5"H => 19.30 sf x 20.00'L = 386.0 cf Outside= 67.0"W x 67.0"H => 22.92 sf x 20.00'L = 458.4 cf 35 Chambers in 7 Rows 54.09' Header x 19.30 sf x 2 = 2,087.7 cf Inside #3 908.00' 34,645 cf 4.00'D x 919.00'H Vertical Cone/Cylinder x 3 58,280 cf Total Available Storage Storage Group A created with Chamber Wizard Device Routing Invert Outlet Devices #1 Primary 905.20'15.0" Round Culvert L= 312.0' RCP, square edge headwall, Ke= 0.500 Inlet / Outlet Invert= 905.20' / 901.89' S= 0.0106 '/' Cc= 0.900 n= 0.013 Concrete pipe, straight & clean, Flow Area= 1.23 sf #2 Device 1 905.50'14.0" Round Culvert L= 20.0' CPP, square edge headwall, Ke= 0.500 Inlet / Outlet Invert= 905.50' / 905.20' S= 0.0150 '/' Cc= 0.900 n= 0.011 PVC, smooth interior, Flow Area= 1.07 sf #3 Device 2 909.50'12.0" Vert. Orifice - Overflow C= 0.600 Limited to weir flow at low heads #4 Device 2 906.00'8.0" Vert. Orifice - Underdrain C= 0.600 Limited to weir flow at low heads #5 Device 4 908.00'0.800 in/hr Filtration over Horizontal area Phase-In= 0.01' Primary OutFlow Max=0.12 cfs @ 12.01 hrs HW=908.06' TW=0.00' (Dynamic Tailwater) 1=Culvert (Passes 0.12 cfs of 7.38 cfs potential flow) 2=Culvert (Passes 0.12 cfs of 7.24 cfs potential flow) 3=Orifice - Overflow ( Controls 0.00 cfs) 4=Orifice - Underdrain (Passes 0.12 cfs of 2.21 cfs potential flow) 5=Filtration (Exfiltration Controls 0.12 cfs) MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 141HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Pond 47P: Bluff Creek - West Basin - 60" PIPE - Chamber Wizard Field A Chamber Model = ADS N-12 60" (ADS N-12® Pipe) Inside= 59.5"W x 59.5"H => 19.30 sf x 20.00'L = 386.0 cf Outside= 67.0"W x 67.0"H => 22.92 sf x 20.00'L = 458.4 cf 67.0" Wide + 30.0" Spacing = 97.0" C-C Row Spacing 5 Chambers/Row x 20.00' Long +5.58' Header x 2 = 111.17' Row Length +12.0" End Stone x 2 = 113.17' Base Length 7 Rows x 67.0" Wide + 30.0" Spacing x 6 + 12.0" Side Stone x 2 = 56.09' Base Width 67.0" Chamber Height + 6.0" Stone Cover = 6.08' Field Height 35 Chambers x 386.0 cf + 54.09' Header x 19.30 sf x 2 = 15,597.7 cf Chamber Storage 35 Chambers x 458.4 cf + 54.09' Header x 22.92 sf x 2 = 18,524.0 cf Displacement 38,615.4 cf Field - 18,524.0 cf Chambers = 20,091.4 cf Stone x 40.0% Voids = 8,036.6 cf Stone Storage Chamber Storage + Stone Storage = 23,634.3 cf = 0.543 af Overall Storage Efficiency = 61.2% Overall System Size = 113.17' x 56.09' x 6.08' 35 Chambers 1,430.2 cy Field 744.1 cy Stone MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 142HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Pond 47P: Bluff Creek - West Basin - 60" PIPE Inflow Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)2 1 0 Inflow Area=2.860 ac Peak Elev=908.86' Storage=2,427 cf 1.94 cfs 0.12 cfs MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 143HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Pond 48P: Bluff Creek - East Basin [44] Hint: Outlet device #2 is below defined storage Inflow Area = 7.828 ac, 28.98% Impervious, Inflow Depth = 0.43" for 1.1 Inch Equiv. event Inflow = 5.10 cfs @ 12.16 hrs, Volume= 0.283 af Outflow = 0.35 cfs @ 13.55 hrs, Volume= 0.283 af, Atten= 93%, Lag= 83.5 min Primary = 0.35 cfs @ 13.55 hrs, Volume= 0.283 af Routed to Pond 54P : South-East Temp Basin Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 897.36' @ 13.55 hrs Surf.Area= 40,988 sf Storage= 6,553 cf Plug-Flow detention time= (not calculated: outflow precedes inflow) Center-of-Mass det. time= 237.6 min ( 1,060.9 - 823.2 ) Volume Invert Avail.Storage Storage Description #1 897.20' 340,085 cf Open Pond (Prismatic) Listed below (Recalc) Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 897.20 40,540 0 0 904.00 59,485 340,085 340,085 Device Routing Invert Outlet Devices #1 Primary 895.35'12.0" Round Culvert L= 637.0' RCP, sq.cut end projecting, Ke= 0.500 Inlet / Outlet Invert= 895.35' / 888.98' S= 0.0100 '/' Cc= 0.900 n= 0.017 Concrete sewer w/manholes & inlets, Flow Area= 0.79 sf #2 Device 1 897.00'8.0" Round Temp Outlet Pipe L= 21.0' CPP, mitered to conform to fill, Ke= 0.700 Inlet / Outlet Invert= 897.00' / 895.35' S= 0.0786 '/' Cc= 0.900 n= 0.011 PVC, smooth interior, Flow Area= 0.35 sf Primary OutFlow Max=0.35 cfs @ 13.55 hrs HW=897.36' TW=879.33' (Dynamic Tailwater) 1=Culvert (Passes 0.35 cfs of 2.87 cfs potential flow) 2=Temp Outlet Pipe (Inlet Controls 0.35 cfs @ 1.80 fps) MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 144HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Pond 48P: Bluff Creek - East Basin Inflow Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)5 4 3 2 1 0 Inflow Area=7.828 ac Peak Elev=897.36' Storage=6,553 cf 5.10 cfs 0.35 cfs MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 145HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Pond 52P: South-Center Temp Basin Inflow Area = 8.180 ac, 9.42% Impervious, Inflow Depth = 0.26" for 1.1 Inch Equiv. event Inflow = 1.49 cfs @ 12.30 hrs, Volume= 0.180 af Outflow = 1.47 cfs @ 12.39 hrs, Volume= 0.180 af, Atten= 1%, Lag= 5.3 min Primary = 1.47 cfs @ 12.39 hrs, Volume= 0.180 af Routed to Pond 41.3P : South-West Temp Basin Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 903.48' @ 12.39 hrs Surf.Area= 1,492 sf Storage= 254 cf Plug-Flow detention time= 3.8 min calculated for 0.180 af (100% of inflow) Center-of-Mass det. time= 3.8 min ( 864.9 - 861.1 ) Volume Invert Avail.Storage Storage Description #1 903.14' 49,230 cf Custom Stage Data (Prismatic) Listed below (Recalc) Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 903.14 10 0 0 904.00 3,775 1,628 1,628 905.00 19,015 11,395 13,023 906.00 53,400 36,208 49,230 Device Routing Invert Outlet Devices #1 Primary 903.14'Custom Weir/Orifice, Cv= 2.62 (C= 3.28) Head (feet) 0.00 0.25 0.50 0.75 1.00 2.00 Width (feet) 0.10 4.20 6.25 8.30 12.50 12.50 Primary OutFlow Max=1.47 cfs @ 12.39 hrs HW=903.48' TW=875.87' (Dynamic Tailwater) 1=Custom Weir/Orifice (Weir Controls 1.47 cfs @ 1.56 fps) MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 146HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Pond 52P: South-Center Temp Basin Inflow Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)1 0 Inflow Area=8.180 ac Peak Elev=903.48' Storage=254 cf 1.49 cfs 1.47 cfs MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 147HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Pond 54P: South-East Temp Basin Inflow Area = 13.937 ac, 16.28% Impervious, Inflow Depth = 0.33" for 1.1 Inch Equiv. event Inflow = 1.17 cfs @ 12.50 hrs, Volume= 0.386 af Outflow = 0.34 cfs @ 16.54 hrs, Volume= 0.385 af, Atten= 71%, Lag= 242.7 min Primary = 0.34 cfs @ 16.54 hrs, Volume= 0.385 af Routed to Reach 42.2R : Southeast Secondary = 0.00 cfs @ 0.00 hrs, Volume= 0.000 af Routed to Reach 42.2R : Southeast Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 879.42' @ 16.54 hrs Surf.Area= 12,499 sf Storage= 5,131 cf Plug-Flow detention time= 395.6 min calculated for 0.385 af (100% of inflow) Center-of-Mass det. time= 394.5 min ( 1,408.0 - 1,013.5 ) Volume Invert Avail.Storage Storage Description #1 879.00' 121,861 cf Custom Stage Data (Prismatic) Listed below (Recalc) Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 879.00 11,945 0 0 881.00 14,583 26,528 26,528 883.00 20,500 35,083 61,611 884.00 100,000 60,250 121,861 Device Routing Invert Outlet Devices #1 Primary 874.38'18.0" Round Culvert L= 68.0' RCP, sq.cut end projecting, Ke= 0.500 Inlet / Outlet Invert= 874.38' / 874.05' S= 0.0049 '/' Cc= 0.900 n= 0.013 Concrete pipe, straight & clean, Flow Area= 1.77 sf #2 Device 1 879.00'6.0" Round Culvert L= 29.0' CPP, mitered to conform to fill, Ke= 0.700 Inlet / Outlet Invert= 879.00' / 878.71' S= 0.0100 '/' Cc= 0.900 n= 0.011 PVC, smooth interior, Flow Area= 0.20 sf #3 Secondary 883.85'25.0' long x 50.0' breadth Broad-Crested Rectangular Weir Head (feet) 0.20 0.40 0.60 0.80 1.00 1.20 1.40 1.60 Coef. (English) 2.68 2.70 2.70 2.64 2.63 2.64 2.64 2.63 Primary OutFlow Max=0.34 cfs @ 16.54 hrs HW=879.42' TW=0.00' (Dynamic Tailwater) 1=Culvert (Passes 0.34 cfs of 16.84 cfs potential flow) 2=Culvert (Inlet Controls 0.34 cfs @ 1.95 fps) Secondary OutFlow Max=0.00 cfs @ 0.00 hrs HW=879.00' TW=0.00' (Dynamic Tailwater) 3=Broad-Crested Rectangular Weir ( Controls 0.00 cfs) MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 148HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Pond 54P: South-East Temp Basin Inflow Outflow Primary Secondary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)1 0 Inflow Area=13.937 ac Peak Elev=879.42' Storage=5,131 cf 1.17 cfs 0.34 cfs 0.34 cfs 0.00 cfs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 149HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Time span=0.00-360.00 hrs, dt=0.01 hrs, 36001 points Runoff by SCS TR-20 method, UH=SCS, Weighted-CN Reach routing by Dyn-Stor-Ind method - Pond routing by Dyn-Stor-Ind method Runoff Area=19,930 sf 0.00% Impervious Runoff Depth=1.15"Subcatchment 13.1S: Front Yards - North Tc=5.0 min CN=80 Runoff=0.98 cfs 0.044 af Runoff Area=21,220 sf 0.00% Impervious Runoff Depth=1.15"Subcatchment 13.2S: Front Yards - South Tc=5.0 min CN=80 Runoff=1.04 cfs 0.047 af Runoff Area=5,069 sf 76.64% Impervious Runoff Depth=2.22"Subcatchment 16oS: East Offsite Tc=5.0 min CN=94 Runoff=0.47 cfs 0.022 af Runoff Area=283,295 sf 6.71% Impervious Runoff Depth=1.21"Subcatchment 21S: Northwest Flow Length=440' Tc=14.9 min CN=81 Runoff=9.44 cfs 0.658 af Runoff Area=10,548 sf 0.00% Impervious Runoff Depth=1.04"Subcatchment 22oS: From Lyman Flow Length=57' Slope=0.3330 '/' Tc=5.0 min CN=78 Runoff=0.46 cfs 0.021 af Runoff Area=41,685 sf 0.00% Impervious Runoff Depth=1.15"Subcatchment 22S: Direct to Wetland 6 Tc=5.0 min CN=80 Runoff=2.05 cfs 0.092 af Runoff Area=199,050 sf 58.96% Impervious Runoff Depth=1.95"Subcatchment 25S: West North Tc=10.0 min CN=91 Runoff=13.01 cfs 0.743 af Runoff Area=227,645 sf 28.54% Impervious Runoff Depth=1.48"Subcatchment 28S: Avienda Pkwy Tc=15.0 min CN=85 Runoff=9.34 cfs 0.644 af Runoff Area=5,467 sf 25.44% Impervious Runoff Depth=1.48"Subcatchment 29oS: North Offsite Tc=5.0 min CN=85 Runoff=0.35 cfs 0.015 af Runoff Area=38,150 sf 35.33% Impervious Runoff Depth=1.55"Subcatchment 31S: West Central Flow Length=345' Tc=13.2 min CN=86 Runoff=1.75 cfs 0.113 af Runoff Area=115,865 sf 17.26% Impervious Runoff Depth=1.21"Subcatchment 33oS: Offsite West - North Flow Length=431' Tc=7.3 min UI Adjusted CN=81 Runoff=5.30 cfs 0.269 af Runoff Area=74,385 sf 2.13% Impervious Runoff Depth=1.63"Subcatchment 33S: Direct to Wetland 3 Tc=12.0 min CN=87 Runoff=3.75 cfs 0.231 af Runoff Area=25,345 sf 22.45% Impervious Runoff Depth=1.41"Subcatchment 34dS: Offsite West Direct Tc=10.0 min CN=84 Runoff=1.20 cfs 0.068 af Runoff Area=32,845 sf 0.00% Impervious Runoff Depth=1.15"Subcatchment 34oS: Offsite to West South Tc=15.0 min CN=80 Runoff=1.03 cfs 0.072 af Runoff Area=105,570 sf 0.00% Impervious Runoff Depth=0.16"Subcatchment 34S: West Woods Flow Length=268' Tc=11.1 min CN=55 Runoff=0.15 cfs 0.033 af Runoff Area=165,040 sf 0.00% Impervious Runoff Depth=0.16"Subcatchment 35S: Southwest Flow Length=270' Tc=18.3 min CN=55 Runoff=0.22 cfs 0.051 af MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 150HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Runoff Area=1,628 sf 100.00% Impervious Runoff Depth=2.64"Subcatchment 36oS: Southwest Offsite Tc=5.0 min CN=98 Runoff=0.17 cfs 0.008 af Runoff Area=63,545 sf 52.82% Impervious Runoff Depth=1.87"Subcatchment 40.4S: So. Villas Private Flow Length=845' Tc=13.0 min CN=90 Runoff=3.54 cfs 0.227 af Runoff Area=157,310 sf 5.27% Impervious Runoff Depth=1.21"Subcatchment 41.3S: South-West Flow Length=285' Tc=8.9 min CN=81 Runoff=6.66 cfs 0.365 af Runoff Area=21,960 sf 0.00% Impervious Runoff Depth=1.15"Subcatchment 42.1S: South Fringe Tc=5.0 min CN=80 Runoff=1.08 cfs 0.048 af Runoff Area=8,870 sf 0.00% Impervious Runoff Depth=1.04"Subcatchment 42.2S: Southeast Fringe Tc=5.0 min CN=78 Runoff=0.39 cfs 0.018 af Runoff Area=140,400 sf 0.00% Impervious Runoff Depth=0.16"Subcatchment 43.1S: East Woods Flow Length=530' Tc=15.2 min CN=55 Runoff=0.19 cfs 0.043 af Runoff Area=76,080 sf 0.00% Impervious Runoff Depth=0.16"Subcatchment 43.2S: Northeast Woods Flow Length=623' Tc=19.5 min CN=55 Runoff=0.10 cfs 0.024 af Runoff Area=446,125 sf 0.00% Impervious Runoff Depth=0.16"Subcatchment 44S: North Woods Tc=20.0 min CN=55 Runoff=0.59 cfs 0.138 af Runoff Area=63,170 sf 0.00% Impervious Runoff Depth=1.15"Subcatchment 46S: Direct to Tri. Basin Flow Length=755' Tc=11.5 min CN=80 Runoff=2.25 cfs 0.139 af Runoff Area=57,455 sf 33.07% Impervious Runoff Depth=1.55"Subcatchment 46uS: Rear Yards of South Flow Length=755' Tc=11.5 min CN=86 Runoff=2.82 cfs 0.171 af Runoff Area=103,380 sf 49.41% Impervious Runoff Depth=1.78"Subcatchment 47S: Bluff Creek Pkwy - Tc=10.0 min CN=89 Runoff=6.22 cfs 0.353 af Runoff Area=168,700 sf 56.27% Impervious Runoff Depth=2.04"Subcatchment 48S: Bluff Creek Pkwy - Tc=10.0 min CN=92 Runoff=11.46 cfs 0.658 af Runoff Area=292,770 sf 0.00% Impervious Runoff Depth=1.15"Subcatchment 52S: South - Center Flow Length=660' Slope=0.0100 '/' Tc=27.0 min CN=80 Runoff=6.75 cfs 0.646 af Runoff Area=266,110 sf 0.00% Impervious Runoff Depth=1.15"Subcatchment 54S: South - East Flow Length=418' Tc=27.7 min CN=80 Runoff=6.05 cfs 0.587 af Runoff Area=167,215 sf 0.00% Impervious Runoff Depth=1.15"Subcatchment 55S: Direct to Bluff Creek - Tc=5.0 min CN=80 Runoff=8.21 cfs 0.369 af Inflow=2.05 cfs 1.812 afReach 20R: Northwest Drainage Outflow=2.05 cfs 1.812 af Avg. Flow Depth=0.30' Max Vel=0.61 fps Inflow=2.51 cfs 1.812 afReach 21R: Wetland 6 Lower Reach n=0.050 L=187.0' S=0.0053 '/' Capacity=3,072.14 cfs Outflow=2.05 cfs 1.812 af MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 151HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Inflow=2.53 cfs 0.847 afReach 30R: West Drainage Outflow=2.53 cfs 0.847 af Inflow=1.21 cfs 0.119 afReach 35R: Direct Runoff Outflow=1.21 cfs 0.119 af Inflow=6.80 cfs 3.851 afReach 40R: South Drainage Outflow=6.80 cfs 3.851 af Inflow=1.60 cfs 1.700 afReach 42.2R: Southeast Outflow=1.60 cfs 1.700 af Inflow=5.69 cfs 2.107 afReach 44R: Southwest Outflow=5.69 cfs 2.107 af Avg. Flow Depth=0.23' Max Vel=3.36 fps Inflow=2.82 cfs 0.171 afReach 46uR: South Swale - at East n=0.025 L=34.0' S=0.0294 '/' Capacity=11.72 cfs Outflow=2.82 cfs 0.171 af Inflow=1.47 cfs 0.399 afReach 48R: Developed Area To Wetland 4 Outflow=1.47 cfs 0.399 af Inflow=9.74 cfs 6.510 afReach 50R: Bluff Creek Drainage Outflow=9.74 cfs 6.510 af Peak Elev=893.74' Storage=38,157 cf Inflow=12.96 cfs 2.105 afPond 21P: Northwest Basin w Filtration Primary=1.96 cfs 1.700 af Secondary=0.00 cfs 0.000 af Outflow=1.96 cfs 1.700 af Peak Elev=916.64' Storage=12,372 cf Inflow=13.01 cfs 0.743 afPond 25P: West-North w Filtration Outflow=4.39 cfs 0.743 af Peak Elev=913.07' Storage=17,478 cf Inflow=9.89 cfs 0.704 afPond 28P: Avienda Pkwy Surface Basin Outflow=0.98 cfs 0.704 af Peak Elev=924.47' Storage=2,645 cf Inflow=1.75 cfs 0.113 afPond 31P: West-Central Surface Basin w Outflow=0.11 cfs 0.113 af Peak Elev=921.14' Storage=10,943 cf Inflow=8.68 cfs 0.614 afPond 33P: Wetland 3 Primary=1.16 cfs 0.614 af Secondary=0.00 cfs 0.000 af Outflow=1.16 cfs 0.614 af Peak Elev=907.66' Storage=0.012 af Inflow=1.96 cfs 0.719 afPond 34P: West - South (existing) Outflow=1.84 cfs 0.719 af Peak Elev=877.58' Storage=28,890 cf Inflow=14.01 cfs 1.548 afPond 41.3P: South-West Temp Basin Primary=2.14 cfs 1.332 af Secondary=1.94 cfs 0.215 af Outflow=4.08 cfs 1.547 af Peak Elev=884.26' Storage=296 cf Inflow=2.05 cfs 0.537 afPond 44P: Wetland 4 Outflow=2.05 cfs 0.537 af Peak Elev=888.80' Storage=4,296 cf Inflow=5.07 cfs 0.310 afPond 46P: Triangle Basin Primary=2.58 cfs 0.310 af Secondary=0.00 cfs 0.000 af Outflow=2.58 cfs 0.310 af MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 152HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Peak Elev=910.11' Storage=7,996 cf Inflow=6.96 cfs 0.399 afPond 47P: Bluff Creek - West Basin - 60" Outflow=1.47 cfs 0.399 af Peak Elev=897.85' Storage=26,823 cf Inflow=18.55 cfs 1.048 afPond 48P: Bluff Creek - East Basin Outflow=1.06 cfs 1.048 af Peak Elev=903.88' Storage=1,210 cf Inflow=8.65 cfs 0.873 afPond 52P: South-Center Temp Basin Outflow=8.55 cfs 0.873 af Peak Elev=880.87' Storage=24,610 cf Inflow=7.00 cfs 1.636 afPond 54P: South-East Temp Basin Primary=1.06 cfs 1.634 af Secondary=0.00 cfs 0.000 af Outflow=1.06 cfs 1.634 af Total Runoff Area = 78.187 ac Runoff Volume = 6.918 af Average Runoff Depth = 1.06" 86.61% Pervious = 67.722 ac 13.39% Impervious = 10.465 ac MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 153HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 13.1S: Front Yards - North Rowhomes Runoff = 0.98 cfs @ 12.08 hrs, Volume= 0.044 af, Depth= 1.15" Routed to Pond 28P : Avienda Pkwy Surface Basin NOT UPDATED Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Area (sf) CN Description 19,930 80 >75% Grass cover, Good, HSG D 19,930 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 5.0 Direct Entry, Subcatchment 13.1S: Front Yards - North Rowhomes Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)1 0 MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Runoff Area=19,930 sf Runoff Volume=0.044 af Runoff Depth=1.15" Tc=5.0 min CN=80 0.98 cfs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 154HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 13.2S: Front Yards - South Rowhomes Runoff = 1.04 cfs @ 12.08 hrs, Volume= 0.047 af, Depth= 1.15" Routed to Pond 47P : Bluff Creek - West Basin - 60" PIPE Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Area (sf) CN Description 21,220 80 >75% Grass cover, Good, HSG D 21,220 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 5.0 Direct Entry, Subcatchment 13.2S: Front Yards - South Rowhomes Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)1 0 MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Runoff Area=21,220 sf Runoff Volume=0.047 af Runoff Depth=1.15" Tc=5.0 min CN=80 1.04 cfs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 155HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 16oS: East Offsite Runoff = 0.47 cfs @ 12.07 hrs, Volume= 0.022 af, Depth= 2.22" Routed to Pond 48P : Bluff Creek - East Basin Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Area (sf) CN Description 1,184 80 >75% Grass cover, Good, HSG D 3,885 98 Paved parking, HSG D 5,069 94 Weighted Average 1,184 23.36% Pervious Area 3,885 76.64% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 5.0 Direct Entry, Subcatchment 16oS: East Offsite Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.52 0.5 0.48 0.46 0.44 0.42 0.4 0.38 0.36 0.34 0.32 0.3 0.28 0.26 0.24 0.22 0.2 0.18 0.16 0.14 0.12 0.1 0.08 0.06 0.04 0.02 0 MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Runoff Area=5,069 sf Runoff Volume=0.022 af Runoff Depth=2.22" Tc=5.0 min CN=94 0.47 cfs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 156HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 21S: Northwest Runoff = 9.44 cfs @ 12.21 hrs, Volume= 0.658 af, Depth= 1.21" Routed to Pond 21P : Northwest Basin w Filtration Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Area (sf) CN Description 264,275 80 >75% Grass cover, Good, HSG D 19,020 98 Unconnected roofs, HSG D 283,295 81 Weighted Average 264,275 93.29% Pervious Area 19,020 6.71% Impervious Area 19,020 100.00% Unconnected Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 10.3 100 0.0200 0.16 Sheet Flow, Grass: Short n= 0.150 P2= 2.87" 3.7 190 0.0150 0.86 Shallow Concentrated Flow, Short Grass Pasture Kv= 7.0 fps 0.9 150 0.1470 2.68 Shallow Concentrated Flow, Short Grass Pasture Kv= 7.0 fps 14.9 440 Total Subcatchment 21S: Northwest Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)10 9 8 7 6 5 4 3 2 1 0 MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Runoff Area=283,295 sf Runoff Volume=0.658 af Runoff Depth=1.21" Flow Length=440' Tc=14.9 min CN=81 9.44 cfs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 157HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 22oS: From Lyman Runoff = 0.46 cfs @ 12.08 hrs, Volume= 0.021 af, Depth= 1.04" Routed to Reach 21R : Wetland 6 Lower Reach Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Area (sf) CN Description 10,548 78 Meadow, non-grazed, HSG D 10,548 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 2.1 57 0.3330 0.44 Sheet Flow, Grass: Short n= 0.150 P2= 2.87" 2.9 Direct Entry, Make up to 5 minutes 5.0 57 Total Subcatchment 22oS: From Lyman Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.5 0.48 0.46 0.44 0.42 0.4 0.38 0.36 0.34 0.32 0.3 0.28 0.26 0.24 0.22 0.2 0.18 0.16 0.14 0.12 0.1 0.08 0.06 0.04 0.02 0 MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Runoff Area=10,548 sf Runoff Volume=0.021 af Runoff Depth=1.04" Flow Length=57' Slope=0.3330 '/' Tc=5.0 min CN=78 0.46 cfs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 158HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 22S: Direct to Wetland 6 Runoff = 2.05 cfs @ 12.08 hrs, Volume= 0.092 af, Depth= 1.15" Routed to Reach 21R : Wetland 6 Lower Reach Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Area (sf) CN Description 41,685 80 >75% Grass cover, Good, HSG D 41,685 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 5.0 Direct Entry, Subcatchment 22S: Direct to Wetland 6 Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)2 1 0 MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Runoff Area=41,685 sf Runoff Volume=0.092 af Runoff Depth=1.15" Tc=5.0 min CN=80 2.05 cfs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 159HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 25S: West North Runoff = 13.01 cfs @ 12.13 hrs, Volume= 0.743 af, Depth= 1.95" Routed to Pond 25P : West-North w Filtration Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Area (sf) CN Description 81,685 80 >75% Grass cover, Good, HSG D 99,930 98 Paved parking, HSG D 17,435 98 Unconnected roofs, HSG D 199,050 91 Weighted Average 81,685 41.04% Pervious Area 117,365 58.96% Impervious Area 17,435 14.86% Unconnected Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 10.0 Direct Entry, Subcatchment 25S: West North Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Runoff Area=199,050 sf Runoff Volume=0.743 af Runoff Depth=1.95" Tc=10.0 min CN=91 13.01 cfs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 160HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 28S: Avienda Pkwy Runoff = 9.34 cfs @ 12.21 hrs, Volume= 0.644 af, Depth= 1.48" Routed to Pond 28P : Avienda Pkwy Surface Basin NOT UPDATED Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Area (sf) CN Description 162,665 80 >75% Grass cover, Good, HSG D 64,980 98 Paved roads w/curbs & sewers, HSG D 227,645 85 Weighted Average 162,665 71.46% Pervious Area 64,980 28.54% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 15.0 Direct Entry, Subcatchment 28S: Avienda Pkwy Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)10 9 8 7 6 5 4 3 2 1 0 MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Runoff Area=227,645 sf Runoff Volume=0.644 af Runoff Depth=1.48" Tc=15.0 min CN=85 9.34 cfs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 161HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 29oS: North Offsite Runoff = 0.35 cfs @ 12.08 hrs, Volume= 0.015 af, Depth= 1.48" Routed to Pond 28P : Avienda Pkwy Surface Basin NOT UPDATED Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Area (sf) CN Description 4,076 80 >75% Grass cover, Good, HSG D 1,391 98 Paved parking, HSG D 5,467 85 Weighted Average 4,076 74.56% Pervious Area 1,391 25.44% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 5.0 Direct Entry, Subcatchment 29oS: North Offsite Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.38 0.36 0.34 0.32 0.3 0.28 0.26 0.24 0.22 0.2 0.18 0.16 0.14 0.12 0.1 0.08 0.06 0.04 0.02 0 MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Runoff Area=5,467 sf Runoff Volume=0.015 af Runoff Depth=1.48" Tc=5.0 min CN=85 0.35 cfs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 162HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 31S: West Central Runoff = 1.75 cfs @ 12.18 hrs, Volume= 0.113 af, Depth= 1.55" Routed to Pond 31P : West-Central Surface Basin w Filtration Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Area (sf) CN Description 24,670 80 >75% Grass cover, Good, HSG D 9,870 98 Unconnected roofs, HSG D * 3,610 98 Connected roofs, HSG D 38,150 86 Weighted Average 24,670 64.67% Pervious Area 13,480 35.33% Impervious Area 9,870 73.22% Unconnected Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 10.3 100 0.0200 0.16 Sheet Flow, Grass: Short n= 0.150 P2= 2.87" 2.9 245 0.0410 1.42 Shallow Concentrated Flow, Short Grass Pasture Kv= 7.0 fps 13.2 345 Total Subcatchment 31S: West Central Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)1 0 MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Runoff Area=38,150 sf Runoff Volume=0.113 af Runoff Depth=1.55" Flow Length=345' Tc=13.2 min CN=86 1.75 cfs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 163HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 33oS: Offsite West - North Runoff = 5.30 cfs @ 12.11 hrs, Volume= 0.269 af, Depth= 1.21" Routed to Pond 33P : Wetland 3 Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Area (sf) CN Adj Description 20,000 98 Unconnected roofs, HSG D 71,000 80 >75% Grass cover, Good, HSG D * 12,720 96 Wetland, Good, HSG D 12,145 58 Meadow, non-grazed, HSG B 115,865 83 81 Weighted Average, UI Adjusted 95,865 82.74% Pervious Area 20,000 17.26% Impervious Area 20,000 100.00% Unconnected Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 5.0 25 0.0200 0.08 Sheet Flow, Grass: Dense n= 0.240 P2= 2.87" 2.3 406 0.0390 2.96 Shallow Concentrated Flow, Grassed Waterway Kv= 15.0 fps 7.3 431 Total Subcatchment 33oS: Offsite West - North Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)5 4 3 2 1 0 MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Runoff Area=115,865 sf Runoff Volume=0.269 af Runoff Depth=1.21" Flow Length=431' Tc=7.3 min UI Adjusted CN=81 5.30 cfs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 164HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 33S: Direct to Wetland 3 Runoff = 3.75 cfs @ 12.17 hrs, Volume= 0.231 af, Depth= 1.63" Routed to Pond 33P : Wetland 3 Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Area (sf) CN Description * 29,365 96 Wetland, Good, HSG D 43,435 80 >75% Grass cover, Good, HSG D 1,585 98 Unconnected roofs, HSG D 74,385 87 Weighted Average 72,800 97.87% Pervious Area 1,585 2.13% Impervious Area 1,585 100.00% Unconnected Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 12.0 Direct Entry, Subcatchment 33S: Direct to Wetland 3 Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)4 3 2 1 0 MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Runoff Area=74,385 sf Runoff Volume=0.231 af Runoff Depth=1.63" Tc=12.0 min CN=87 3.75 cfs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 165HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 34dS: Offsite West Direct Runoff = 1.20 cfs @ 12.14 hrs, Volume= 0.068 af, Depth= 1.41" Routed to Reach 35R : Direct Runoff Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Area (sf) CN Description 19,655 80 >75% Grass cover, Good, HSG D 5,690 98 Paved roads w/curbs & sewers, HSG D 25,345 84 Weighted Average 19,655 77.55% Pervious Area 5,690 22.45% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 10.0 Direct Entry, Subcatchment 34dS: Offsite West Direct Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)1 0 MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Runoff Area=25,345 sf Runoff Volume=0.068 af Runoff Depth=1.41" Tc=10.0 min CN=84 1.20 cfs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 166HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 34oS: Offsite to West South Runoff = 1.03 cfs @ 12.21 hrs, Volume= 0.072 af, Depth= 1.15" Routed to Pond 34P : West - South (existing) Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Area (sf) CN Description 32,845 80 >75% Grass cover, Good, HSG D 32,845 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 15.0 Direct Entry, Subcatchment 34oS: Offsite to West South Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)1 0 MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Runoff Area=32,845 sf Runoff Volume=0.072 af Runoff Depth=1.15" Tc=15.0 min CN=80 1.03 cfs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 167HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 34S: West Woods Runoff = 0.15 cfs @ 12.37 hrs, Volume= 0.033 af, Depth= 0.16" Routed to Pond 34P : West - South (existing) Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Area (sf) CN Description 105,570 55 Woods, Good, HSG B 105,570 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 8.4 50 0.0600 0.10 Sheet Flow, Woods: Light underbrush n= 0.400 P2= 2.87" 2.7 218 0.0710 1.33 Shallow Concentrated Flow, Woodland Kv= 5.0 fps 11.1 268 Total Subcatchment 34S: West Woods Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.17 0.16 0.15 0.14 0.13 0.12 0.11 0.1 0.09 0.08 0.07 0.06 0.05 0.04 0.03 0.02 0.01 0 MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Runoff Area=105,570 sf Runoff Volume=0.033 af Runoff Depth=0.16" Flow Length=268' Tc=11.1 min CN=55 0.15 cfs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 168HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 35S: Southwest Runoff = 0.22 cfs @ 12.61 hrs, Volume= 0.051 af, Depth= 0.16" Routed to Reach 35R : Direct Runoff Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Area (sf) CN Description 165,040 55 Woods, Good, HSG B 165,040 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 16.0 75 0.0270 0.08 Sheet Flow, Woods: Light underbrush n= 0.400 P2= 2.87" 2.3 195 0.0820 1.43 Shallow Concentrated Flow, Woodland Kv= 5.0 fps 18.3 270 Total Subcatchment 35S: Southwest Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.24 0.23 0.22 0.21 0.2 0.19 0.18 0.17 0.16 0.15 0.14 0.13 0.12 0.11 0.1 0.09 0.08 0.07 0.06 0.05 0.04 0.03 0.02 0.01 0 MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Runoff Area=165,040 sf Runoff Volume=0.051 af Runoff Depth=0.16" Flow Length=270' Tc=18.3 min CN=55 0.22 cfs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 169HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 36oS: Southwest Offsite Runoff = 0.17 cfs @ 12.07 hrs, Volume= 0.008 af, Depth= 2.64" Routed to Reach 30R : West Drainage Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Area (sf) CN Description 1,628 98 Paved parking, HSG D 1,628 100.00% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 5.0 Direct Entry, Subcatchment 36oS: Southwest Offsite Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.18 0.17 0.16 0.15 0.14 0.13 0.12 0.11 0.1 0.09 0.08 0.07 0.06 0.05 0.04 0.03 0.02 0.01 0 MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Runoff Area=1,628 sf Runoff Volume=0.008 af Runoff Depth=2.64" Tc=5.0 min CN=98 0.17 cfs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 170HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 40.4S: So. Villas Private Drive Runoff = 3.54 cfs @ 12.18 hrs, Volume= 0.227 af, Depth= 1.87" Routed to Pond 52P : South-Center Temp Basin Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Area (sf) CN Description 29,980 80 >75% Grass cover, Good, HSG D 33,565 98 Paved parking, HSG D 63,545 90 Weighted Average 29,980 47.18% Pervious Area 33,565 52.82% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 8.3 70 0.0430 0.14 Sheet Flow, Lawn Grass: Dense n= 0.240 P2= 2.87" 4.7 775 0.0180 2.72 Shallow Concentrated Flow, Street Flow Paved Kv= 20.3 fps 13.0 845 Total Subcatchment 40.4S: So. Villas Private Drive Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)3 2 1 0 MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Runoff Area=63,545 sf Runoff Volume=0.227 af Runoff Depth=1.87" Flow Length=845' Tc=13.0 min CN=90 3.54 cfs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 171HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 41.3S: South-West Runoff = 6.66 cfs @ 12.13 hrs, Volume= 0.365 af, Depth= 1.21" Routed to Pond 41.3P : South-West Temp Basin Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Area (sf) CN Description 149,020 80 >75% Grass cover, Good, HSG D * 8,290 100 Water 157,310 81 Weighted Average 149,020 94.73% Pervious Area 8,290 5.27% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 7.5 100 0.0450 0.22 Sheet Flow, Grass: Short n= 0.150 P2= 2.87" 1.0 90 0.0450 1.48 Shallow Concentrated Flow, Short Grass Pasture Kv= 7.0 fps 0.4 95 0.3333 4.04 Shallow Concentrated Flow, Short Grass Pasture Kv= 7.0 fps 8.9 285 Total Subcatchment 41.3S: South-West Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)7 6 5 4 3 2 1 0 MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Runoff Area=157,310 sf Runoff Volume=0.365 af Runoff Depth=1.21" Flow Length=285' Tc=8.9 min CN=81 6.66 cfs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 172HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 42.1S: South Fringe Runoff = 1.08 cfs @ 12.08 hrs, Volume= 0.048 af, Depth= 1.15" Routed to Reach 42.2R : Southeast Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Area (sf) CN Description 21,960 80 >75% Grass cover, Good, HSG D 21,960 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 5.0 Direct Entry, Subcatchment 42.1S: South Fringe Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)1 0 MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Runoff Area=21,960 sf Runoff Volume=0.048 af Runoff Depth=1.15" Tc=5.0 min CN=80 1.08 cfs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 173HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 42.2S: Southeast Fringe Runoff = 0.39 cfs @ 12.08 hrs, Volume= 0.018 af, Depth= 1.04" Routed to Reach 42.2R : Southeast Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Area (sf) CN Description 8,870 78 Meadow, non-grazed, HSG D 8,870 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 5.0 Direct Entry, Subcatchment 42.2S: Southeast Fringe Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.42 0.4 0.38 0.36 0.34 0.32 0.3 0.28 0.26 0.24 0.22 0.2 0.18 0.16 0.14 0.12 0.1 0.08 0.06 0.04 0.02 0 MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Runoff Area=8,870 sf Runoff Volume=0.018 af Runoff Depth=1.04" Tc=5.0 min CN=78 0.39 cfs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 174HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 43.1S: East Woods Runoff = 0.19 cfs @ 12.58 hrs, Volume= 0.043 af, Depth= 0.16" Routed to Reach 40R : South Drainage Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Area (sf) CN Description 140,400 55 Woods, Good, HSG B 140,400 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 11.1 75 0.0670 0.11 Sheet Flow, Woods: Light underbrush n= 0.400 P2= 2.87" 4.1 455 0.1380 1.86 Shallow Concentrated Flow, Woodland Kv= 5.0 fps 15.2 530 Total Subcatchment 43.1S: East Woods Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.21 0.2 0.19 0.18 0.17 0.16 0.15 0.14 0.13 0.12 0.11 0.1 0.09 0.08 0.07 0.06 0.05 0.04 0.03 0.02 0.01 0 MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Runoff Area=140,400 sf Runoff Volume=0.043 af Runoff Depth=0.16" Flow Length=530' Tc=15.2 min CN=55 0.19 cfs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 175HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 43.2S: Northeast Woods Runoff = 0.10 cfs @ 12.62 hrs, Volume= 0.024 af, Depth= 0.16" Routed to Reach 44R : Southwest Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Area (sf) CN Description 76,080 55 Woods, Good, HSG B 76,080 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 14.2 100 0.0650 0.12 Sheet Flow, Woods: Light underbrush n= 0.400 P2= 2.87" 5.3 523 0.1080 1.64 Shallow Concentrated Flow, Woodland Kv= 5.0 fps 19.5 623 Total Subcatchment 43.2S: Northeast Woods Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.11 0.105 0.1 0.095 0.09 0.085 0.08 0.075 0.07 0.065 0.06 0.055 0.05 0.045 0.04 0.035 0.03 0.025 0.02 0.015 0.01 0.005 0 MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Runoff Area=76,080 sf Runoff Volume=0.024 af Runoff Depth=0.16" Flow Length=623' Tc=19.5 min CN=55 0.10 cfs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 176HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 44S: North Woods Runoff = 0.59 cfs @ 12.62 hrs, Volume= 0.138 af, Depth= 0.16" Routed to Pond 44P : Wetland 4 Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Area (sf) CN Description 446,125 55 Woods, Good, HSG B 446,125 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 20.0 Direct Entry, Subcatchment 44S: North Woods Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.65 0.6 0.55 0.5 0.45 0.4 0.35 0.3 0.25 0.2 0.15 0.1 0.05 0 MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Runoff Area=446,125 sf Runoff Volume=0.138 af Runoff Depth=0.16" Tc=20.0 min CN=55 0.59 cfs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 177HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 46S: Direct to Tri. Basin Runoff = 2.25 cfs @ 12.16 hrs, Volume= 0.139 af, Depth= 1.15" Routed to Pond 46P : Triangle Basin Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Area (sf) CN Description 63,170 80 >75% Grass cover, Good, HSG D 63,170 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 3.4 40 0.0500 0.19 Sheet Flow, Grass: Short n= 0.150 P2= 2.87" 8.1 715 0.0440 1.47 Shallow Concentrated Flow, Short Grass Pasture Kv= 7.0 fps 11.5 755 Total Subcatchment 46S: Direct to Tri. Basin Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)2 1 0 MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Runoff Area=63,170 sf Runoff Volume=0.139 af Runoff Depth=1.15" Flow Length=755' Tc=11.5 min CN=80 2.25 cfs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 178HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 46uS: Rear Yards of South Townhomes Runoff = 2.82 cfs @ 12.16 hrs, Volume= 0.171 af, Depth= 1.55" Routed to Reach 46uR : South Swale - at East Property Line of THs Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Area (sf) CN Description 38,455 80 >75% Grass cover, Good, HSG D 19,000 98 Unconnected roofs, HSG D 57,455 86 Weighted Average 38,455 66.93% Pervious Area 19,000 33.07% Impervious Area 19,000 100.00% Unconnected Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 3.4 40 0.0500 0.19 Sheet Flow, Grass: Short n= 0.150 P2= 2.87" 8.1 715 0.0440 1.47 Shallow Concentrated Flow, Short Grass Pasture Kv= 7.0 fps 11.5 755 Total Subcatchment 46uS: Rear Yards of South Townhomes Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)3 2 1 0 MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Runoff Area=57,455 sf Runoff Volume=0.171 af Runoff Depth=1.55" Flow Length=755' Tc=11.5 min CN=86 2.82 cfs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 179HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 47S: Bluff Creek Pkwy - West Runoff = 6.22 cfs @ 12.14 hrs, Volume= 0.353 af, Depth= 1.78" Routed to Pond 47P : Bluff Creek - West Basin - 60" PIPE Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Area (sf) CN Description * 52,305 80 >75% Grass cover, Good, HSG D 51,075 98 Paved roads w/curbs & sewers, HSG D 103,380 89 Weighted Average 52,305 50.59% Pervious Area 51,075 49.41% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 10.0 Direct Entry, Subcatchment 47S: Bluff Creek Pkwy - West Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)6 5 4 3 2 1 0 MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Runoff Area=103,380 sf Runoff Volume=0.353 af Runoff Depth=1.78" Tc=10.0 min CN=89 6.22 cfs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 180HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 48S: Bluff Creek Pkwy - East Runoff = 11.46 cfs @ 12.13 hrs, Volume= 0.658 af, Depth= 2.04" Routed to Pond 48P : Bluff Creek - East Basin Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Area (sf) CN Description * 73,780 84 >75% Grass cover, Good, HSG D 94,920 98 Paved roads w/curbs & sewers, HSG D 168,700 92 Weighted Average 73,780 43.73% Pervious Area 94,920 56.27% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 10.0 Direct Entry, Subcatchment 48S: Bluff Creek Pkwy - East Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)12 11 10 9 8 7 6 5 4 3 2 1 0 MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Runoff Area=168,700 sf Runoff Volume=0.658 af Runoff Depth=2.04" Tc=10.0 min CN=92 11.46 cfs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 181HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 52S: South - Center Runoff = 6.75 cfs @ 12.39 hrs, Volume= 0.646 af, Depth= 1.15" Routed to Pond 52P : South-Center Temp Basin Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Area (sf) CN Description 292,770 80 >75% Grass cover, Good, HSG D 292,770 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 13.7 100 0.0100 0.12 Sheet Flow, Grass: Short n= 0.150 P2= 2.87" 13.3 560 0.0100 0.70 Shallow Concentrated Flow, Short Grass Pasture Kv= 7.0 fps 27.0 660 Total Subcatchment 52S: South - Center Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)7 6 5 4 3 2 1 0 MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Runoff Area=292,770 sf Runoff Volume=0.646 af Runoff Depth=1.15" Flow Length=660' Slope=0.0100 '/' Tc=27.0 min CN=80 6.75 cfs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 182HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 54S: South - East Runoff = 6.05 cfs @ 12.40 hrs, Volume= 0.587 af, Depth= 1.15" Routed to Pond 54P : South-East Temp Basin Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Area (sf) CN Description 266,110 80 >75% Grass cover, Good, HSG D 266,110 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 14.3 168 0.0250 0.20 Sheet Flow, Grass: Short n= 0.150 P2= 2.87" 8.4 250 0.0050 0.49 Shallow Concentrated Flow, Short Grass Pasture Kv= 7.0 fps 5.0 Direct Entry, Pipe flow 27.7 418 Total Subcatchment 54S: South - East Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)6 5 4 3 2 1 0 MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Runoff Area=266,110 sf Runoff Volume=0.587 af Runoff Depth=1.15" Flow Length=418' Tc=27.7 min CN=80 6.05 cfs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 183HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 55S: Direct to Bluff Creek - East Basin Runoff = 8.21 cfs @ 12.08 hrs, Volume= 0.369 af, Depth= 1.15" Routed to Pond 48P : Bluff Creek - East Basin Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Area (sf) CN Description 167,215 80 >75% Grass cover, Good, HSG D 167,215 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 5.0 Direct Entry, Subcatchment 55S: Direct to Bluff Creek - East Basin Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)9 8 7 6 5 4 3 2 1 0 MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Runoff Area=167,215 sf Runoff Volume=0.369 af Runoff Depth=1.15" Tc=5.0 min CN=80 8.21 cfs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 184HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Reach 20R: Northwest Drainage [40] Hint: Not Described (Outflow=Inflow) Inflow Area = 18.081 ac, 25.74% Impervious, Inflow Depth = 1.20" for 2y 24hr event Inflow = 2.05 cfs @ 14.73 hrs, Volume= 1.812 af Outflow = 2.05 cfs @ 14.73 hrs, Volume= 1.812 af, Atten= 0%, Lag= 0.0 min Routed to Reach 50R : Bluff Creek Drainage Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Reach 20R: Northwest Drainage Inflow Outflow Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)2 1 0 Inflow Area=18.081 ac 2.05 cfs 2.05 cfs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 185HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Reach 21R: Wetland 6 Lower Reach Inflow Area = 18.081 ac, 25.74% Impervious, Inflow Depth = 1.20" for 2y 24hr event Inflow = 2.51 cfs @ 12.08 hrs, Volume= 1.812 af Outflow = 2.05 cfs @ 14.73 hrs, Volume= 1.812 af, Atten= 18%, Lag= 159.1 min Routed to Reach 20R : Northwest Drainage Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Max. Velocity= 0.61 fps, Min. Travel Time= 5.1 min Avg. Velocity = 0.23 fps, Avg. Travel Time= 13.5 min Peak Storage= 627 cf @ 14.73 hrs Average Depth at Peak Storage= 0.30' , Surface Width= 22.48' Bank-Full Depth= 5.99' Flow Area= 570.1 sf, Capacity= 3,072.14 cfs Custom cross-section, Length= 187.0' Slope= 0.0053 '/' (102 Elevation Intervals) Constant n= 0.050 Scattered brush, heavy weeds Inlet Invert= 885.00', Outlet Invert= 884.00' ‡ Offset Elevation Chan.Depth (feet) (feet) (feet) 0.00 890.40 0.00 43.10 886.55 3.85 85.60 884.41 5.99 126.20 885.14 5.26 145.10 890.40 0.00 Depth End Area Perim. Width Storage Discharge (feet) (sq-ft) (feet) (feet) (cubic-feet) (cfs) 0.00 0.0 0.0 0.0 0 0.00 0.73 20.1 55.1 55.1 3,761 22.32 2.14 121.1 88.4 88.2 22,648 324.64 5.99 570.1 146.1 145.1 106,618 3,072.14 MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 186HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Reach 21R: Wetland 6 Lower Reach Inflow Outflow Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)2 1 0 Inflow Area=18.081 ac Avg. Flow Depth=0.30' Max Vel=0.61 fps n=0.050 L=187.0' S=0.0053 '/' Capacity=3,072.14 cfs 2.51 cfs 2.05 cfs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 187HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Reach 30R: West Drainage [40] Hint: Not Described (Outflow=Inflow) Inflow Area = 12.829 ac, 7.58% Impervious, Inflow Depth = 0.79" for 2y 24hr event Inflow = 2.53 cfs @ 12.32 hrs, Volume= 0.847 af Outflow = 2.53 cfs @ 12.32 hrs, Volume= 0.847 af, Atten= 0%, Lag= 0.0 min Routed to Reach 50R : Bluff Creek Drainage Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Reach 30R: West Drainage Inflow Outflow Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)2 1 0 Inflow Area=12.829 ac 2.53 cfs 2.53 cfs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 188HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Reach 35R: Direct Runoff [40] Hint: Not Described (Outflow=Inflow) Inflow Area = 4.371 ac, 2.99% Impervious, Inflow Depth = 0.33" for 2y 24hr event Inflow = 1.21 cfs @ 12.14 hrs, Volume= 0.119 af Outflow = 1.21 cfs @ 12.14 hrs, Volume= 0.119 af, Atten= 0%, Lag= 0.0 min Routed to Reach 30R : West Drainage Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Reach 35R: Direct Runoff Inflow Outflow Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)1 0 Inflow Area=4.371 ac 1.21 cfs 1.21 cfs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 189HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Reach 40R: South Drainage [40] Hint: Not Described (Outflow=Inflow) Inflow Area = 47.277 ac, 10.23% Impervious, Inflow Depth = 0.98" for 2y 24hr event Inflow = 6.80 cfs @ 12.92 hrs, Volume= 3.851 af Outflow = 6.80 cfs @ 12.92 hrs, Volume= 3.851 af, Atten= 0%, Lag= 0.0 min Routed to Reach 50R : Bluff Creek Drainage Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Reach 40R: South Drainage Inflow Outflow Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)7 6 5 4 3 2 1 0 Inflow Area=47.277 ac 6.80 cfs 6.80 cfs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 190HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Reach 42.2R: Southeast [40] Hint: Not Described (Outflow=Inflow) Inflow Area = 14.645 ac, 15.49% Impervious, Inflow Depth = 1.39" for 2y 24hr event Inflow = 1.60 cfs @ 12.08 hrs, Volume= 1.700 af Outflow = 1.60 cfs @ 12.08 hrs, Volume= 1.700 af, Atten= 0%, Lag= 0.0 min Routed to Reach 40R : South Drainage Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Reach 42.2R: Southeast Inflow Outflow Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)1 0 Inflow Area=14.645 ac 1.60 cfs 1.60 cfs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 191HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Reach 44R: Southwest [40] Hint: Not Described (Outflow=Inflow) Inflow Area = 29.409 ac, 8.74% Impervious, Inflow Depth = 0.86" for 2y 24hr event Inflow = 5.69 cfs @ 12.86 hrs, Volume= 2.107 af Outflow = 5.69 cfs @ 12.86 hrs, Volume= 2.107 af, Atten= 0%, Lag= 0.0 min Routed to Reach 40R : South Drainage Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Reach 44R: Southwest Inflow Outflow Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)6 5 4 3 2 1 0 Inflow Area=29.409 ac 5.69 cfs 5.69 cfs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 192HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Reach 46uR: South Swale - at East Property Line of THs Inflow Area = 1.319 ac, 33.07% Impervious, Inflow Depth = 1.55" for 2y 24hr event Inflow = 2.82 cfs @ 12.16 hrs, Volume= 0.171 af Outflow = 2.82 cfs @ 12.16 hrs, Volume= 0.171 af, Atten= 0%, Lag= 0.1 min Routed to Pond 46P : Triangle Basin Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Max. Velocity= 3.36 fps, Min. Travel Time= 0.2 min Avg. Velocity = 0.87 fps, Avg. Travel Time= 0.7 min Peak Storage= 29 cf @ 12.16 hrs Average Depth at Peak Storage= 0.23' , Surface Width= 4.37' Bank-Full Depth= 0.50' Flow Area= 2.3 sf, Capacity= 11.72 cfs 3.00' x 0.50' deep channel, n= 0.025 Short grass Side Slope Z-value= 3.0 '/' Top Width= 6.00' Length= 34.0' Slope= 0.0294 '/' Inlet Invert= 894.00', Outlet Invert= 893.00' ‡ Reach 46uR: South Swale - at East Property Line of THs Inflow Outflow Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)3 2 1 0 Inflow Area=1.319 ac Avg. Flow Depth=0.23' Max Vel=3.36 fps n=0.025 L=34.0' S=0.0294 '/' Capacity=11.72 cfs 2.82 cfs 2.82 cfs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 193HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Reach 48R: Developed Area To Wetland 4 [40] Hint: Not Described (Outflow=Inflow) Inflow Area = 2.860 ac, 40.99% Impervious, Inflow Depth = 1.68" for 2y 24hr event Inflow = 1.47 cfs @ 12.56 hrs, Volume= 0.399 af Outflow = 1.47 cfs @ 12.56 hrs, Volume= 0.399 af, Atten= 0%, Lag= 0.0 min Routed to Pond 44P : Wetland 4 Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Reach 48R: Developed Area To Wetland 4 Inflow Outflow Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)1 0 Inflow Area=2.860 ac 1.47 cfs 1.47 cfs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 194HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Reach 50R: Bluff Creek Drainage [40] Hint: Not Described (Outflow=Inflow) Inflow Area = 78.187 ac, 13.39% Impervious, Inflow Depth = 1.00" for 2y 24hr event Inflow = 9.74 cfs @ 13.05 hrs, Volume= 6.510 af Outflow = 9.74 cfs @ 13.05 hrs, Volume= 6.510 af, Atten= 0%, Lag= 0.0 min Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Reach 50R: Bluff Creek Drainage Inflow Outflow Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)10 9 8 7 6 5 4 3 2 1 0 Inflow Area=78.187 ac 9.74 cfs 9.74 cfs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 195HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Pond 21P: Northwest Basin w Filtration Inflow Area = 16.882 ac, 27.57% Impervious, Inflow Depth = 1.50" for 2y 24hr event Inflow = 12.96 cfs @ 12.24 hrs, Volume= 2.105 af Outflow = 1.96 cfs @ 14.65 hrs, Volume= 1.700 af, Atten= 85%, Lag= 144.3 min Primary = 1.96 cfs @ 14.65 hrs, Volume= 1.700 af Routed to Reach 21R : Wetland 6 Lower Reach Secondary = 0.00 cfs @ 0.00 hrs, Volume= 0.000 af Routed to Reach 21R : Wetland 6 Lower Reach Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 893.74' @ 14.65 hrs Surf.Area= 33,020 sf Storage= 38,157 cf Plug-Flow detention time= 547.0 min calculated for 1.700 af (81% of inflow) Center-of-Mass det. time= 408.9 min ( 1,399.0 - 990.1 ) Volume Invert Avail.Storage Storage Description #1 892.50' 158,719 cf Open Pond (Prismatic) Listed below (Recalc) Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 892.50 8,125 0 0 892.54 8,180 326 326 892.55 30,215 192 518 893.00 31,280 13,836 14,354 894.00 33,630 32,455 46,809 895.00 36,050 34,840 81,649 896.00 38,530 37,290 118,939 897.00 41,030 39,780 158,719 Device Routing Invert Outlet Devices #1 Primary 887.86'18.0" Round Culvert L= 30.0' RCP, sq.cut end projecting, Ke= 0.500 Inlet / Outlet Invert= 887.86' / 887.71' S= 0.0050 '/' Cc= 0.900 n= 0.011 Concrete pipe, straight & clean, Flow Area= 1.77 sf #2 Device 1 889.70'8.0" Vert. Orifice - Underdrain C= 0.600 Limited to weir flow at low heads #3 Device 1 893.10'18.0" Vert. Orifice - Overflow C= 0.600 Limited to weir flow at low heads #4 Device 2 892.50'0.800 in/hr Exfiltration over Surface area from 891.69' - 891.74' Excluded Surface area = 0 sf Phase-In= 0.01' #5 Secondary 896.75'20.0' long x 30.0' breadth Broad-Crested Rectangular Weir Head (feet) 0.20 0.40 0.60 0.80 1.00 1.20 1.40 1.60 Coef. (English) 2.68 2.70 2.70 2.64 2.63 2.64 2.64 2.63 MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 196HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Primary OutFlow Max=1.96 cfs @ 14.65 hrs HW=893.74' TW=885.30' (Dynamic Tailwater) 1=Culvert (Passes 1.96 cfs of 19.27 cfs potential flow) 2=Orifice - Underdrain (Passes 0.00 cfs of 3.24 cfs potential flow) 4=Exfiltration (Exfiltration Controls 0.00 cfs) 3=Orifice - Overflow (Orifice Controls 1.96 cfs @ 2.72 fps) Secondary OutFlow Max=0.00 cfs @ 0.00 hrs HW=892.50' TW=885.00' (Dynamic Tailwater) 5=Broad-Crested Rectangular Weir ( Controls 0.00 cfs) Pond 21P: Northwest Basin w Filtration Inflow Outflow Primary Secondary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 Inflow Area=16.882 ac Peak Elev=893.74' Storage=38,157 cf 12.96 cfs 1.96 cfs 1.96 cfs 0.00 cfs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 197HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Pond 25P: West-North w Filtration Inflow Area = 4.570 ac, 58.96% Impervious, Inflow Depth = 1.95" for 2y 24hr event Inflow = 13.01 cfs @ 12.13 hrs, Volume= 0.743 af Outflow = 4.39 cfs @ 12.38 hrs, Volume= 0.743 af, Atten= 66%, Lag= 14.8 min Primary = 4.39 cfs @ 12.38 hrs, Volume= 0.743 af Routed to Pond 21P : Northwest Basin w Filtration Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 916.64' @ 12.38 hrs Surf.Area= 17,854 sf Storage= 12,372 cf Plug-Flow detention time= 118.6 min calculated for 0.743 af (100% of inflow) Center-of-Mass det. time= 118.6 min ( 919.7 - 801.2 ) Volume Invert Avail.Storage Storage Description #1 914.93' 36,108 cf Rock Bed (Prismatic) Listed below (Recalc) 90,520 cf Overall - 249 cf Embedded = 90,271 cf x 40.0% Voids #2 914.94' 249 cf 8.0" Round Pipe Storage Inside #1 L= 714.0' 36,357 cf Total Available Storage Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 914.93 17,854 0 0 920.00 17,854 90,520 90,520 Device Routing Invert Outlet Devices #1 Primary 908.00'18.0" Round Culvert L= 164.0' RCP, sq.cut end projecting, Ke= 0.500 Inlet / Outlet Invert= 908.00' / 905.82' S= 0.0133 '/' Cc= 0.900 n= 0.011 Concrete pipe, straight & clean, Flow Area= 1.77 sf #2 Device 1 912.63'8.0" Vert. Underdrain C= 0.600 Limited to weir flow at low heads #3 Device 1 915.67'18.0" Vert. Overflow C= 0.600 Limited to weir flow at low heads #4 Device 2 914.93'0.800 in/hr Filtration over Surface area Phase-In= 0.01' Primary OutFlow Max=4.39 cfs @ 12.38 hrs HW=916.64' TW=893.11' (Dynamic Tailwater) 1=Culvert (Passes 4.39 cfs of 22.67 cfs potential flow) 2=Underdrain (Passes 0.33 cfs of 3.22 cfs potential flow) 4=Filtration (Exfiltration Controls 0.33 cfs) 3=Overflow (Orifice Controls 4.06 cfs @ 3.36 fps) MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 198HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Pond 25P: West-North w Filtration Inflow Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 Inflow Area=4.570 ac Peak Elev=916.64' Storage=12,372 cf 13.01 cfs 4.39 cfs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 199HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Pond 28P: Avienda Pkwy Surface Basin NOT UPDATED [44] Hint: Outlet device #3 is below defined storage Inflow Area = 5.809 ac, 26.23% Impervious, Inflow Depth = 1.45" for 2y 24hr event Inflow = 9.89 cfs @ 12.20 hrs, Volume= 0.704 af Outflow = 0.98 cfs @ 13.29 hrs, Volume= 0.704 af, Atten= 90%, Lag= 65.3 min Primary = 0.98 cfs @ 13.29 hrs, Volume= 0.704 af Routed to Pond 21P : Northwest Basin w Filtration Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 913.07' @ 13.29 hrs Surf.Area= 33,328 sf Storage= 17,478 cf Plug-Flow detention time= 382.1 min calculated for 0.704 af (100% of inflow) Center-of-Mass det. time= 382.1 min ( 1,207.8 - 825.6 ) Volume Invert Avail.Storage Storage Description #1 912.53' 292,399 cf Open Pond (Prismatic) Listed below (Recalc) Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 912.53 30,930 0 0 919.00 59,456 292,399 292,399 Device Routing Invert Outlet Devices #1 Primary 908.15'12.0" Round Culvert L= 159.0' RCP, square edge headwall, Ke= 0.500 Inlet / Outlet Invert= 908.15' / 906.81' S= 0.0084 '/' Cc= 0.900 n= 0.013 Concrete pipe, straight & clean, Flow Area= 0.79 sf #2 Device 1 909.73'12.0" Round Culvert L= 165.0' RCP, square edge headwall, Ke= 0.500 Inlet / Outlet Invert= 909.73' / 908.15' S= 0.0096 '/' Cc= 0.900 n= 0.013 Concrete pipe, straight & clean, Flow Area= 0.79 sf #3 Device 2 912.45'12.0" Round Culvert L= 17.0' RCP, end-section conforming to fill, Ke= 0.500 Inlet / Outlet Invert= 912.45' / 912.37' S= 0.0047 '/' Cc= 0.900 n= 0.013 Concrete pipe, straight & clean, Flow Area= 0.79 sf Primary OutFlow Max=0.98 cfs @ 13.29 hrs HW=913.07' TW=893.64' (Dynamic Tailwater) 1=Culvert (Passes 0.98 cfs of 5.68 cfs potential flow) 2=Culvert (Passes 0.98 cfs of 4.83 cfs potential flow) 3=Culvert (Barrel Controls 0.98 cfs @ 2.71 fps) MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 200HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Pond 28P: Avienda Pkwy Surface Basin NOT UPDATED Inflow Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)11 10 9 8 7 6 5 4 3 2 1 0 Inflow Area=5.809 ac Peak Elev=913.07' Storage=17,478 cf 9.89 cfs 0.98 cfs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 201HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Pond 31P: West-Central Surface Basin w Filtration Inflow Area = 0.876 ac, 35.33% Impervious, Inflow Depth = 1.55" for 2y 24hr event Inflow = 1.75 cfs @ 12.18 hrs, Volume= 0.113 af Outflow = 0.11 cfs @ 13.67 hrs, Volume= 0.113 af, Atten= 94%, Lag= 89.3 min Primary = 0.11 cfs @ 13.67 hrs, Volume= 0.113 af Routed to Pond 33P : Wetland 3 Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 924.47' @ 13.67 hrs Surf.Area= 5,982 sf Storage= 2,645 cf Plug-Flow detention time= 228.3 min calculated for 0.113 af (100% of inflow) Center-of-Mass det. time= 228.3 min ( 1,049.2 - 820.9 ) Volume Invert Avail.Storage Storage Description #1 924.00' 13,385 cf Surface Basin (Prismatic) Listed below (Recalc) Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 924.00 5,360 0 0 926.00 8,025 13,385 13,385 Device Routing Invert Outlet Devices #1 Primary 920.93'15.0" Round Culvert L= 42.0' RCP, sq.cut end projecting, Ke= 0.500 Inlet / Outlet Invert= 920.93' / 920.80' S= 0.0031 '/' Cc= 0.900 n= 0.011 Concrete pipe, straight & clean, Flow Area= 1.23 sf #2 Device 1 920.93'8.0" Vert. Orifice/Grate - Underdrain C= 0.600 Limited to weir flow at low heads #3 Device 1 925.00'8.0" Vert. Orifice/Grate - Overflow C= 0.600 Limited to weir flow at low heads #4 Device 2 924.00'0.800 in/hr Filtration over Horizontal area above 923.22' Excluded Horizontal area = 0 sf Phase-In= 0.01' Primary OutFlow Max=0.11 cfs @ 13.67 hrs HW=924.47' TW=921.12' (Dynamic Tailwater) 1=Culvert (Passes 0.11 cfs of 10.08 cfs potential flow) 2=Orifice/Grate - Underdrain (Passes 0.11 cfs of 3.01 cfs potential flow) 4=Filtration (Exfiltration Controls 0.11 cfs) 3=Orifice/Grate - Overflow ( Controls 0.00 cfs) MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 202HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Pond 31P: West-Central Surface Basin w Filtration Inflow Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)1 0 Inflow Area=0.876 ac Peak Elev=924.47' Storage=2,645 cf 1.75 cfs 0.11 cfs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 203HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Pond 33P: Wetland 3 Inflow Area = 5.243 ac, 15.35% Impervious, Inflow Depth = 1.40" for 2y 24hr event Inflow = 8.68 cfs @ 12.12 hrs, Volume= 0.614 af Outflow = 1.16 cfs @ 12.84 hrs, Volume= 0.614 af, Atten= 87%, Lag= 43.1 min Primary = 1.16 cfs @ 12.84 hrs, Volume= 0.614 af Routed to Pond 34P : West - South (existing) Secondary = 0.00 cfs @ 0.00 hrs, Volume= 0.000 af Routed to Reach 30R : West Drainage Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 921.14' @ 12.84 hrs Surf.Area= 35,400 sf Storage= 10,943 cf Plug-Flow detention time= 150.8 min calculated for 0.614 af (100% of inflow) Center-of-Mass det. time= 153.3 min ( 1,018.6 - 865.3 ) Volume Invert Avail.Storage Storage Description #1 920.58' 140,121 cf Custom Stage Data (Prismatic) Listed below (Recalc) Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 920.58 100 0 0 921.00 30,000 6,321 6,321 922.00 68,200 49,100 55,421 923.00 101,200 84,700 140,121 Device Routing Invert Outlet Devices #1 Primary 920.58'12.0" Round Culvert L= 455.0' RCP, end-section conforming to fill, Ke= 0.500 Inlet / Outlet Invert= 920.58' / 911.02' S= 0.0210 '/' Cc= 0.900 n= 0.013 Concrete pipe, straight & clean, Flow Area= 0.79 sf #2 Secondary 921.90'Asymmetrical Weir, C= 3.27 Offset (feet) 0.00 19.00 40.00 50.00 76.00 103.00 Height (feet) 1.50 0.50 0.00 0.00 0.50 1.50 Primary OutFlow Max=1.16 cfs @ 12.84 hrs HW=921.14' TW=907.59' (Dynamic Tailwater) 1=Culvert (Inlet Controls 1.16 cfs @ 2.55 fps) Secondary OutFlow Max=0.00 cfs @ 0.00 hrs HW=920.58' TW=0.00' (Dynamic Tailwater) 2=Asymmetrical Weir ( Controls 0.00 cfs) MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 204HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Pond 33P: Wetland 3 Inflow Outflow Primary Secondary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)9 8 7 6 5 4 3 2 1 0 Inflow Area=5.243 ac Peak Elev=921.14' Storage=10,943 cf 8.68 cfs 1.16 cfs 1.16 cfs 0.00 cfs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 205HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Pond 34P: West - South (existing) Inflow Area = 8.421 ac, 9.56% Impervious, Inflow Depth = 1.02" for 2y 24hr event Inflow = 1.96 cfs @ 12.26 hrs, Volume= 0.719 af Outflow = 1.84 cfs @ 12.39 hrs, Volume= 0.719 af, Atten= 6%, Lag= 7.5 min Primary = 1.84 cfs @ 12.39 hrs, Volume= 0.719 af Routed to Reach 30R : West Drainage Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 907.66' @ 12.39 hrs Surf.Area= 0.037 ac Storage= 0.012 af Plug-Flow detention time= (not calculated: outflow precedes inflow) Center-of-Mass det. time= 4.7 min ( 1,002.4 - 997.7 ) Volume Invert Avail.Storage Storage Description #1 907.00' 1.603 af Custom Stage Data (Prismatic) Listed below (Recalc) Elevation Surf.Area Inc.Store Cum.Store (feet) (acres) (acre-feet) (acre-feet) 907.00 0.000 0.000 0.000 908.00 0.055 0.028 0.028 909.00 0.208 0.131 0.159 910.00 0.413 0.310 0.469 911.00 0.573 0.493 0.962 912.00 0.709 0.641 1.603 Device Routing Invert Outlet Devices #1 Primary 907.00'15.0" Round Culvert L= 48.8' RCP, end-section conforming to fill, Ke= 0.500 Inlet / Outlet Invert= 907.00' / 906.00' S= 0.0205 '/' Cc= 0.900 n= 0.013 Concrete pipe, straight & clean, Flow Area= 1.23 sf #2 Primary 911.22'Asymmetrical Weir, C= 3.27 Offset (feet) 0.00 12.00 18.00 28.00 49.00 88.00 Height (feet) 1.35 0.02 0.00 0.15 0.70 1.35 Primary OutFlow Max=1.84 cfs @ 12.39 hrs HW=907.66' TW=0.00' (Dynamic Tailwater) 1=Culvert (Inlet Controls 1.84 cfs @ 2.77 fps) 2=Asymmetrical Weir ( Controls 0.00 cfs) MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 206HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Pond 34P: West - South (existing) Inflow Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)2 1 0 Inflow Area=8.421 ac Peak Elev=907.66' Storage=0.012 af 1.96 cfs 1.84 cfs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 207HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Pond 41.3P: South-West Temp Basin Inflow Area = 14.560 ac, 9.59% Impervious, Inflow Depth = 1.28" for 2y 24hr event Inflow = 14.01 cfs @ 12.30 hrs, Volume= 1.548 af Outflow = 4.08 cfs @ 13.04 hrs, Volume= 1.547 af, Atten= 71%, Lag= 44.2 min Primary = 2.14 cfs @ 13.04 hrs, Volume= 1.332 af Routed to Reach 44R : Southwest Secondary = 1.94 cfs @ 13.04 hrs, Volume= 0.215 af Routed to Reach 44R : Southwest Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 877.58' @ 13.04 hrs Surf.Area= 18,945 sf Storage= 28,890 cf Plug-Flow detention time= 182.3 min calculated for 1.547 af (100% of inflow) Center-of-Mass det. time= 181.3 min ( 1,061.4 - 880.1 ) Volume Invert Avail.Storage Storage Description #1 875.63' 126,081 cf Surface Basin (Prismatic) Listed below (Recalc) Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 875.63 8,290 0 0 876.00 12,755 3,893 3,893 878.00 20,605 33,360 37,253 879.00 26,525 23,565 60,818 880.00 32,000 29,263 90,081 881.00 40,000 36,000 126,081 Device Routing Invert Outlet Devices #1 Primary 875.63'15.0" Round Culvert L= 46.0' RCP, end-section conforming to fill, Ke= 0.500 Inlet / Outlet Invert= 875.63' / 875.00' S= 0.0137 '/' Cc= 0.900 n= 0.011 Concrete pipe, straight & clean, Flow Area= 1.23 sf #2 Secondary 877.00'24.0" Round Culvert L= 46.0' RCP, end-section conforming to fill, Ke= 0.500 Inlet / Outlet Invert= 877.00' / 876.37' S= 0.0137 '/' Cc= 0.900 n= 0.011 Concrete pipe, straight & clean, Flow Area= 3.14 sf #3 Device 1 875.63'8.0" Round Culvert L= 8.0' CPP, square edge headwall, Ke= 0.500 Inlet / Outlet Invert= 875.63' / 875.52' S= 0.0138 '/' Cc= 0.900 n= 0.011 PVC, smooth interior, Flow Area= 0.35 sf Primary OutFlow Max=2.14 cfs @ 13.04 hrs HW=877.58' TW=0.00' (Dynamic Tailwater) 1=Culvert (Passes 2.14 cfs of 6.79 cfs potential flow) 3=Culvert (Inlet Controls 2.14 cfs @ 6.12 fps) Secondary OutFlow Max=1.94 cfs @ 13.04 hrs HW=877.58' TW=0.00' (Dynamic Tailwater) 2=Culvert (Inlet Controls 1.94 cfs @ 2.59 fps) MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 208HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Pond 41.3P: South-West Temp Basin Inflow Outflow Primary Secondary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 Inflow Area=14.560 ac Peak Elev=877.58' Storage=28,890 cf 14.01 cfs 4.08 cfs 2.14 cfs 1.94 cfs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 209HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Pond 44P: Wetland 4 Inflow Area = 13.102 ac, 8.95% Impervious, Inflow Depth = 0.49" for 2y 24hr event Inflow = 2.05 cfs @ 12.58 hrs, Volume= 0.537 af Outflow = 2.05 cfs @ 12.60 hrs, Volume= 0.537 af, Atten= 0%, Lag= 1.0 min Primary = 2.05 cfs @ 12.60 hrs, Volume= 0.537 af Routed to Reach 44R : Southwest Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 884.26' @ 12.60 hrs Surf.Area= 1,439 sf Storage= 296 cf Plug-Flow detention time= 8.1 min calculated for 0.537 af (100% of inflow) Center-of-Mass det. time= 7.2 min ( 1,089.2 - 1,082.0 ) Volume Invert Avail.Storage Storage Description #1 884.00' 37,633 cf Custom Stage Data (Prismatic) Listed below (Recalc) Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 884.00 870 0 0 884.50 1,980 713 713 885.00 3,500 1,370 2,083 886.00 7,800 5,650 7,733 887.00 14,000 10,900 18,633 888.00 24,000 19,000 37,633 Device Routing Invert Outlet Devices #1 Primary 884.03'Asymmetrical Weir, C= 3.27 Offset (feet) 0.00 51.00 133.60 176.00 217.30 239.00 Elev. (feet) 889.78 886.05 884.03 885.84 889.00 889.78 Primary OutFlow Max=2.05 cfs @ 12.60 hrs HW=884.26' TW=0.00' (Dynamic Tailwater) 1=Asymmetrical Weir (Weir Controls 2.05 cfs @ 0.62 fps) MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 210HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Pond 44P: Wetland 4 Inflow Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)2 1 0 Inflow Area=13.102 ac Peak Elev=884.26' Storage=296 cf 2.05 cfs 2.05 cfs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 211HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Pond 46P: Triangle Basin Inflow Area = 2.769 ac, 15.75% Impervious, Inflow Depth = 1.34" for 2y 24hr event Inflow = 5.07 cfs @ 12.16 hrs, Volume= 0.310 af Outflow = 2.58 cfs @ 12.35 hrs, Volume= 0.310 af, Atten= 49%, Lag= 11.4 min Primary = 2.58 cfs @ 12.35 hrs, Volume= 0.310 af Routed to Pond 41.3P : South-West Temp Basin Secondary = 0.00 cfs @ 0.00 hrs, Volume= 0.000 af Routed to Pond 41.3P : South-West Temp Basin Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 888.80' @ 12.35 hrs Surf.Area= 3,673 sf Storage= 4,296 cf Plug-Flow detention time= 216.1 min calculated for 0.310 af (100% of inflow) Center-of-Mass det. time= 216.1 min ( 1,043.4 - 827.3 ) Volume Invert Avail.Storage Storage Description #1 887.17' 14,801 cf Open pond (Prismatic) Listed below (Recalc) Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 887.17 1,586 0 0 890.90 6,350 14,801 14,801 Device Routing Invert Outlet Devices #1 Primary 884.37'18.0" Round Culvert L= 125.0' RCP, sq.cut end projecting, Ke= 0.500 Inlet / Outlet Invert= 884.37' / 875.62' S= 0.0700 '/' Cc= 0.900 n= 0.011 Concrete pipe, straight & clean, Flow Area= 1.77 sf #2 Device 1 888.00'15.0" Vert. Orifice/Grate C= 0.600 Limited to weir flow at low heads #3 Secondary 890.75'20.0' long x 5.0' breadth Broad-Crested Rectangular Weir Head (feet) 0.20 0.40 0.60 0.80 1.00 1.20 1.40 1.60 1.80 2.00 2.50 3.00 3.50 4.00 4.50 5.00 5.50 Coef. (English) 2.34 2.50 2.70 2.68 2.68 2.66 2.65 2.65 2.65 2.65 2.67 2.66 2.68 2.70 2.74 2.79 2.88 #4 Device 1 887.17'0.450 in/hr Filtration over Surface area Phase-In= 0.01' Primary OutFlow Max=2.58 cfs @ 12.35 hrs HW=888.80' TW=876.89' (Dynamic Tailwater) 1=Culvert (Passes 2.58 cfs of 16.33 cfs potential flow) 2=Orifice/Grate (Orifice Controls 2.55 cfs @ 3.05 fps) 4=Filtration (Exfiltration Controls 0.04 cfs) Secondary OutFlow Max=0.00 cfs @ 0.00 hrs HW=887.17' TW=875.63' (Dynamic Tailwater) 3=Broad-Crested Rectangular Weir ( Controls 0.00 cfs) MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 212HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Pond 46P: Triangle Basin Inflow Outflow Primary Secondary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)5 4 3 2 1 0 Inflow Area=2.769 ac Peak Elev=888.80' Storage=4,296 cf 5.07 cfs 2.58 cfs 2.58 cfs 0.00 cfs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 213HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Pond 47P: Bluff Creek - West Basin - 60" PIPE Inflow Area = 2.860 ac, 40.99% Impervious, Inflow Depth = 1.68" for 2y 24hr event Inflow = 6.96 cfs @ 12.13 hrs, Volume= 0.399 af Outflow = 1.47 cfs @ 12.56 hrs, Volume= 0.399 af, Atten= 79%, Lag= 26.1 min Primary = 1.47 cfs @ 12.56 hrs, Volume= 0.399 af Routed to Reach 48R : Developed Area To Wetland 4 Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 910.11' @ 12.56 hrs Surf.Area= 6,385 sf Storage= 7,996 cf Plug-Flow detention time= 312.3 min calculated for 0.399 af (100% of inflow) Center-of-Mass det. time= 312.3 min ( 1,123.2 - 810.9 ) Volume Invert Avail.Storage Storage Description #1A 908.00' 8,037 cf 56.09'W x 113.17'L x 6.08'H Field A 38,615 cf Overall - 18,524 cf Embedded = 20,091 cf x 40.0% Voids #2A 908.00' 15,598 cf ADS N-12 60" x 35 Inside #1 Inside= 59.5"W x 59.5"H => 19.30 sf x 20.00'L = 386.0 cf Outside= 67.0"W x 67.0"H => 22.92 sf x 20.00'L = 458.4 cf 35 Chambers in 7 Rows 54.09' Header x 19.30 sf x 2 = 2,087.7 cf Inside #3 908.00' 34,645 cf 4.00'D x 919.00'H Vertical Cone/Cylinder x 3 58,280 cf Total Available Storage Storage Group A created with Chamber Wizard Device Routing Invert Outlet Devices #1 Primary 905.20'15.0" Round Culvert L= 312.0' RCP, square edge headwall, Ke= 0.500 Inlet / Outlet Invert= 905.20' / 901.89' S= 0.0106 '/' Cc= 0.900 n= 0.013 Concrete pipe, straight & clean, Flow Area= 1.23 sf #2 Device 1 905.50'14.0" Round Culvert L= 20.0' CPP, square edge headwall, Ke= 0.500 Inlet / Outlet Invert= 905.50' / 905.20' S= 0.0150 '/' Cc= 0.900 n= 0.011 PVC, smooth interior, Flow Area= 1.07 sf #3 Device 2 909.50'12.0" Vert. Orifice - Overflow C= 0.600 Limited to weir flow at low heads #4 Device 2 906.00'8.0" Vert. Orifice - Underdrain C= 0.600 Limited to weir flow at low heads #5 Device 4 908.00'0.800 in/hr Filtration over Horizontal area Phase-In= 0.01' Primary OutFlow Max=1.47 cfs @ 12.56 hrs HW=910.11' TW=0.00' (Dynamic Tailwater) 1=Culvert (Passes 1.47 cfs of 8.78 cfs potential flow) 2=Culvert (Passes 1.47 cfs of 10.33 cfs potential flow) 3=Orifice - Overflow (Orifice Controls 1.35 cfs @ 2.67 fps) 4=Orifice - Underdrain (Passes 0.12 cfs of 3.27 cfs potential flow) 5=Filtration (Exfiltration Controls 0.12 cfs) MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 214HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Pond 47P: Bluff Creek - West Basin - 60" PIPE - Chamber Wizard Field A Chamber Model = ADS N-12 60" (ADS N-12® Pipe) Inside= 59.5"W x 59.5"H => 19.30 sf x 20.00'L = 386.0 cf Outside= 67.0"W x 67.0"H => 22.92 sf x 20.00'L = 458.4 cf 67.0" Wide + 30.0" Spacing = 97.0" C-C Row Spacing 5 Chambers/Row x 20.00' Long +5.58' Header x 2 = 111.17' Row Length +12.0" End Stone x 2 = 113.17' Base Length 7 Rows x 67.0" Wide + 30.0" Spacing x 6 + 12.0" Side Stone x 2 = 56.09' Base Width 67.0" Chamber Height + 6.0" Stone Cover = 6.08' Field Height 35 Chambers x 386.0 cf + 54.09' Header x 19.30 sf x 2 = 15,597.7 cf Chamber Storage 35 Chambers x 458.4 cf + 54.09' Header x 22.92 sf x 2 = 18,524.0 cf Displacement 38,615.4 cf Field - 18,524.0 cf Chambers = 20,091.4 cf Stone x 40.0% Voids = 8,036.6 cf Stone Storage Chamber Storage + Stone Storage = 23,634.3 cf = 0.543 af Overall Storage Efficiency = 61.2% Overall System Size = 113.17' x 56.09' x 6.08' 35 Chambers 1,430.2 cy Field 744.1 cy Stone MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 215HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Pond 47P: Bluff Creek - West Basin - 60" PIPE Inflow Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)7 6 5 4 3 2 1 0 Inflow Area=2.860 ac Peak Elev=910.11' Storage=7,996 cf 6.96 cfs 1.47 cfs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 216HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Pond 48P: Bluff Creek - East Basin [44] Hint: Outlet device #2 is below defined storage Inflow Area = 7.828 ac, 28.98% Impervious, Inflow Depth = 1.61" for 2y 24hr event Inflow = 18.55 cfs @ 12.10 hrs, Volume= 1.048 af Outflow = 1.06 cfs @ 13.57 hrs, Volume= 1.048 af, Atten= 94%, Lag= 88.2 min Primary = 1.06 cfs @ 13.57 hrs, Volume= 1.048 af Routed to Pond 54P : South-East Temp Basin Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 897.85' @ 13.57 hrs Surf.Area= 42,343 sf Storage= 26,823 cf Plug-Flow detention time= (not calculated: outflow precedes inflow) Center-of-Mass det. time= 341.5 min ( 1,150.1 - 808.6 ) Volume Invert Avail.Storage Storage Description #1 897.20' 340,085 cf Open Pond (Prismatic) Listed below (Recalc) Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 897.20 40,540 0 0 904.00 59,485 340,085 340,085 Device Routing Invert Outlet Devices #1 Primary 895.35'12.0" Round Culvert L= 637.0' RCP, sq.cut end projecting, Ke= 0.500 Inlet / Outlet Invert= 895.35' / 888.98' S= 0.0100 '/' Cc= 0.900 n= 0.017 Concrete sewer w/manholes & inlets, Flow Area= 0.79 sf #2 Device 1 897.00'8.0" Round Temp Outlet Pipe L= 21.0' CPP, mitered to conform to fill, Ke= 0.700 Inlet / Outlet Invert= 897.00' / 895.35' S= 0.0786 '/' Cc= 0.900 n= 0.011 PVC, smooth interior, Flow Area= 0.35 sf Primary OutFlow Max=1.06 cfs @ 13.57 hrs HW=897.85' TW=880.54' (Dynamic Tailwater) 1=Culvert (Passes 1.06 cfs of 2.96 cfs potential flow) 2=Temp Outlet Pipe (Inlet Controls 1.06 cfs @ 3.05 fps) MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 217HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Pond 48P: Bluff Creek - East Basin Inflow Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 Inflow Area=7.828 ac Peak Elev=897.85' Storage=26,823 cf 18.55 cfs 1.06 cfs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 218HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Pond 52P: South-Center Temp Basin Inflow Area = 8.180 ac, 9.42% Impervious, Inflow Depth = 1.28" for 2y 24hr event Inflow = 8.65 cfs @ 12.33 hrs, Volume= 0.873 af Outflow = 8.55 cfs @ 12.36 hrs, Volume= 0.873 af, Atten= 1%, Lag= 1.9 min Primary = 8.55 cfs @ 12.36 hrs, Volume= 0.873 af Routed to Pond 41.3P : South-West Temp Basin Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 903.88' @ 12.36 hrs Surf.Area= 3,255 sf Storage= 1,210 cf Plug-Flow detention time= 3.0 min calculated for 0.873 af (100% of inflow) Center-of-Mass det. time= 3.0 min ( 842.6 - 839.7 ) Volume Invert Avail.Storage Storage Description #1 903.14' 49,230 cf Custom Stage Data (Prismatic) Listed below (Recalc) Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 903.14 10 0 0 904.00 3,775 1,628 1,628 905.00 19,015 11,395 13,023 906.00 53,400 36,208 49,230 Device Routing Invert Outlet Devices #1 Primary 903.14'Custom Weir/Orifice, Cv= 2.62 (C= 3.28) Head (feet) 0.00 0.25 0.50 0.75 1.00 2.00 Width (feet) 0.10 4.20 6.25 8.30 12.50 12.50 Primary OutFlow Max=8.55 cfs @ 12.36 hrs HW=903.88' TW=876.92' (Dynamic Tailwater) 1=Custom Weir/Orifice (Weir Controls 8.55 cfs @ 2.38 fps) MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 219HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Pond 52P: South-Center Temp Basin Inflow Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)9 8 7 6 5 4 3 2 1 0 Inflow Area=8.180 ac Peak Elev=903.88' Storage=1,210 cf 8.65 cfs 8.55 cfs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 220HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Pond 54P: South-East Temp Basin Inflow Area = 13.937 ac, 16.28% Impervious, Inflow Depth = 1.41" for 2y 24hr event Inflow = 7.00 cfs @ 12.40 hrs, Volume= 1.636 af Outflow = 1.06 cfs @ 18.21 hrs, Volume= 1.634 af, Atten= 85%, Lag= 348.3 min Primary = 1.06 cfs @ 18.21 hrs, Volume= 1.634 af Routed to Reach 42.2R : Southeast Secondary = 0.00 cfs @ 0.00 hrs, Volume= 0.000 af Routed to Reach 42.2R : Southeast Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 880.87' @ 18.21 hrs Surf.Area= 14,408 sf Storage= 24,610 cf Plug-Flow detention time= 366.4 min calculated for 1.634 af (100% of inflow) Center-of-Mass det. time= 366.2 min ( 1,409.1 - 1,042.9 ) Volume Invert Avail.Storage Storage Description #1 879.00' 121,861 cf Custom Stage Data (Prismatic) Listed below (Recalc) Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 879.00 11,945 0 0 881.00 14,583 26,528 26,528 883.00 20,500 35,083 61,611 884.00 100,000 60,250 121,861 Device Routing Invert Outlet Devices #1 Primary 874.38'18.0" Round Culvert L= 68.0' RCP, sq.cut end projecting, Ke= 0.500 Inlet / Outlet Invert= 874.38' / 874.05' S= 0.0049 '/' Cc= 0.900 n= 0.013 Concrete pipe, straight & clean, Flow Area= 1.77 sf #2 Device 1 879.00'6.0" Round Culvert L= 29.0' CPP, mitered to conform to fill, Ke= 0.700 Inlet / Outlet Invert= 879.00' / 878.71' S= 0.0100 '/' Cc= 0.900 n= 0.011 PVC, smooth interior, Flow Area= 0.20 sf #3 Secondary 883.85'25.0' long x 50.0' breadth Broad-Crested Rectangular Weir Head (feet) 0.20 0.40 0.60 0.80 1.00 1.20 1.40 1.60 Coef. (English) 2.68 2.70 2.70 2.64 2.63 2.64 2.64 2.63 Primary OutFlow Max=1.06 cfs @ 18.21 hrs HW=880.87' TW=0.00' (Dynamic Tailwater) 1=Culvert (Passes 1.06 cfs of 19.74 cfs potential flow) 2=Culvert (Inlet Controls 1.06 cfs @ 5.40 fps) Secondary OutFlow Max=0.00 cfs @ 0.00 hrs HW=879.00' TW=0.00' (Dynamic Tailwater) 3=Broad-Crested Rectangular Weir ( Controls 0.00 cfs) MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 221HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Pond 54P: South-East Temp Basin Inflow Outflow Primary Secondary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)7 6 5 4 3 2 1 0 Inflow Area=13.937 ac Peak Elev=880.87' Storage=24,610 cf 7.00 cfs 1.06 cfs 1.06 cfs 0.00 cfs MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 222HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Time span=0.00-360.00 hrs, dt=0.01 hrs, 36001 points Runoff by SCS TR-20 method, UH=SCS, Weighted-CN Reach routing by Dyn-Stor-Ind method - Pond routing by Dyn-Stor-Ind method Runoff Area=19,930 sf 0.00% Impervious Runoff Depth=6.96"Subcatchment 13.1S: Front Yards - North Tc=5.0 min AMC Adjusted CN=98 Runoff=0.09 cfs 0.265 af Runoff Area=21,220 sf 0.00% Impervious Runoff Depth=6.96"Subcatchment 13.2S: Front Yards - South Tc=5.0 min AMC Adjusted CN=98 Runoff=0.09 cfs 0.283 af Runoff Area=5,069 sf 76.64% Impervious Runoff Depth=6.96"Subcatchment 16oS: East Offsite Tc=5.0 min AMC Adjusted CN=98 Runoff=0.02 cfs 0.068 af Runoff Area=283,295 sf 6.71% Impervious Runoff Depth=6.96"Subcatchment 21S: Northwest Flow Length=440' Tc=14.9 min AMC UI Adjusted CN=98 Runoff=1.24 cfs 3.772 af Runoff Area=10,548 sf 0.00% Impervious Runoff Depth=6.96"Subcatchment 22oS: From Lyman Flow Length=57' Slope=0.3330 '/' Tc=5.0 min AMC Adjusted CN=98 Runoff=0.05 cfs 0.140 af Runoff Area=41,685 sf 0.00% Impervious Runoff Depth=6.96"Subcatchment 22S: Direct to Wetland 6 Tc=5.0 min AMC Adjusted CN=98 Runoff=0.18 cfs 0.555 af Runoff Area=199,050 sf 58.96% Impervious Runoff Depth=6.96"Subcatchment 25S: West North Tc=10.0 min AMC Adjusted CN=98 Runoff=0.87 cfs 2.651 af Runoff Area=227,645 sf 28.54% Impervious Runoff Depth=6.96"Subcatchment 28S: Avienda Pkwy Tc=15.0 min AMC Adjusted CN=98 Runoff=1.00 cfs 3.031 af Runoff Area=5,467 sf 25.44% Impervious Runoff Depth=6.96"Subcatchment 29oS: North Offsite Tc=5.0 min AMC Adjusted CN=98 Runoff=0.02 cfs 0.073 af Runoff Area=38,150 sf 35.33% Impervious Runoff Depth=6.96"Subcatchment 31S: West Central Flow Length=345' Tc=13.2 min AMC Adjusted CN=98 Runoff=0.17 cfs 0.508 af Runoff Area=115,865 sf 17.26% Impervious Runoff Depth=6.96"Subcatchment 33oS: Offsite West - North Flow Length=431' Tc=7.3 min AMC UI Adjusted CN=98 Runoff=0.51 cfs 1.543 af Runoff Area=74,385 sf 2.13% Impervious Runoff Depth=6.96"Subcatchment 33S: Direct to Wetland 3 Tc=12.0 min AMC UI Adjusted CN=98 Runoff=0.33 cfs 0.991 af Runoff Area=25,345 sf 22.45% Impervious Runoff Depth=6.96"Subcatchment 34dS: Offsite West Direct Tc=10.0 min AMC Adjusted CN=98 Runoff=0.11 cfs 0.338 af Runoff Area=32,845 sf 0.00% Impervious Runoff Depth=6.96"Subcatchment 34oS: Offsite to West South Tc=15.0 min AMC Adjusted CN=98 Runoff=0.14 cfs 0.437 af Runoff Area=105,570 sf 0.00% Impervious Runoff Depth=6.96"Subcatchment 34S: West Woods Flow Length=268' Tc=11.1 min AMC Adjusted CN=98 Runoff=0.46 cfs 1.406 af Runoff Area=165,040 sf 0.00% Impervious Runoff Depth=6.96"Subcatchment 35S: Southwest Flow Length=270' Tc=18.3 min AMC Adjusted CN=98 Runoff=0.72 cfs 2.198 af MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 223HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Runoff Area=1,628 sf 100.00% Impervious Runoff Depth=6.96"Subcatchment 36oS: Southwest Offsite Tc=5.0 min CN=98 Runoff=0.01 cfs 0.022 af Runoff Area=63,545 sf 52.82% Impervious Runoff Depth=6.96"Subcatchment 40.4S: So. Villas Private Flow Length=845' Tc=13.0 min AMC Adjusted CN=98 Runoff=0.28 cfs 0.846 af Runoff Area=157,310 sf 5.27% Impervious Runoff Depth=6.96"Subcatchment 41.3S: South-West Flow Length=285' Tc=8.9 min AMC Adjusted CN=98 Runoff=0.69 cfs 2.095 af Runoff Area=21,960 sf 0.00% Impervious Runoff Depth=6.96"Subcatchment 42.1S: South Fringe Tc=5.0 min AMC Adjusted CN=98 Runoff=0.10 cfs 0.292 af Runoff Area=8,870 sf 0.00% Impervious Runoff Depth=6.96"Subcatchment 42.2S: Southeast Fringe Tc=5.0 min AMC Adjusted CN=98 Runoff=0.04 cfs 0.118 af Runoff Area=140,400 sf 0.00% Impervious Runoff Depth=6.96"Subcatchment 43.1S: East Woods Flow Length=530' Tc=15.2 min AMC Adjusted CN=98 Runoff=0.61 cfs 1.870 af Runoff Area=76,080 sf 0.00% Impervious Runoff Depth=6.96"Subcatchment 43.2S: Northeast Woods Flow Length=623' Tc=19.5 min AMC Adjusted CN=98 Runoff=0.33 cfs 1.013 af Runoff Area=446,125 sf 0.00% Impervious Runoff Depth=6.96"Subcatchment 44S: North Woods Tc=20.0 min AMC Adjusted CN=98 Runoff=1.95 cfs 5.941 af Runoff Area=63,170 sf 0.00% Impervious Runoff Depth=6.96"Subcatchment 46S: Direct to Tri. Basin Flow Length=755' Tc=11.5 min AMC Adjusted CN=98 Runoff=0.28 cfs 0.841 af Runoff Area=57,455 sf 33.07% Impervious Runoff Depth=6.96"Subcatchment 46uS: Rear Yards of South Flow Length=755' Tc=11.5 min AMC Adjusted CN=98 Runoff=0.25 cfs 0.765 af Runoff Area=103,380 sf 49.41% Impervious Runoff Depth=6.96"Subcatchment 47S: Bluff Creek Pkwy - Tc=10.0 min AMC Adjusted CN=98 Runoff=0.45 cfs 1.377 af Runoff Area=168,700 sf 56.27% Impervious Runoff Depth=6.96"Subcatchment 48S: Bluff Creek Pkwy - Tc=10.0 min AMC Adjusted CN=98 Runoff=0.74 cfs 2.246 af Runoff Area=292,770 sf 0.00% Impervious Runoff Depth=6.96"Subcatchment 52S: South - Center Flow Length=660' Slope=0.0100 '/' Tc=27.0 min AMC Adjusted CN=98 Runoff=1.27 cfs 3.899 af Runoff Area=266,110 sf 0.00% Impervious Runoff Depth=6.96"Subcatchment 54S: South - East Flow Length=418' Tc=27.7 min AMC Adjusted CN=98 Runoff=1.16 cfs 3.544 af Runoff Area=167,215 sf 0.00% Impervious Runoff Depth=6.96"Subcatchment 55S: Direct to Bluff Creek - Tc=5.0 min AMC Adjusted CN=98 Runoff=0.73 cfs 2.227 af Inflow=2.46 cfs 10.077 afReach 20R: Northwest Drainage Outflow=2.46 cfs 10.077 af Avg. Flow Depth=0.32' Max Vel=0.64 fps Inflow=2.46 cfs 10.077 afReach 21R: Wetland 6 Lower Reach n=0.050 L=187.0' S=0.0053 '/' Capacity=3,072.14 cfs Outflow=2.46 cfs 10.077 af MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 224HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Inflow=2.17 cfs 7.442 afReach 30R: West Drainage Outflow=2.17 cfs 7.442 af Inflow=0.83 cfs 2.535 afReach 35R: Direct Runoff Outflow=0.83 cfs 2.535 af Inflow=6.52 cfs 27.418 afReach 40R: South Drainage Outflow=6.52 cfs 27.418 af Inflow=1.28 cfs 8.492 afReach 42.2R: Southeast Outflow=1.28 cfs 8.492 af Inflow=4.76 cfs 17.056 afReach 44R: Southwest Outflow=4.76 cfs 17.056 af Avg. Flow Depth=0.06' Max Vel=1.43 fps Inflow=0.25 cfs 0.765 afReach 46uR: South Swale - at East n=0.025 L=34.0' S=0.0294 '/' Capacity=11.72 cfs Outflow=0.25 cfs 0.765 af Inflow=0.49 cfs 1.659 afReach 48R: Developed Area To Wetland 4 Outflow=0.49 cfs 1.659 af Inflow=10.93 cfs 44.936 afReach 50R: Bluff Creek Drainage Outflow=10.93 cfs 44.936 af Peak Elev=893.80' Storage=40,151 cf Inflow=2.50 cfs 9.793 afPond 21P: Northwest Basin w Filtration Primary=2.31 cfs 9.381 af Secondary=0.00 cfs 0.000 af Outflow=2.31 cfs 9.381 af Peak Elev=915.92' Storage=7,224 cf Inflow=0.87 cfs 2.651 afPond 25P: West-North w Filtration Outflow=0.66 cfs 2.651 af Peak Elev=913.02' Storage=15,556 cf Inflow=1.11 cfs 3.370 afPond 28P: Avienda Pkwy Surface Basin Outflow=0.82 cfs 3.370 af Peak Elev=924.17' Storage=909 cf Inflow=0.17 cfs 0.508 afPond 31P: West-Central Surface Basin w Outflow=0.10 cfs 0.508 af Peak Elev=921.03' Storage=7,168 cf Inflow=0.94 cfs 3.041 afPond 33P: Wetland 3 Primary=0.78 cfs 3.042 af Secondary=0.00 cfs 0.000 af Outflow=0.78 cfs 3.042 af Peak Elev=907.56' Storage=0.009 af Inflow=1.34 cfs 4.885 afPond 34P: West - South (existing) Outflow=1.34 cfs 4.885 af Peak Elev=877.24' Storage=22,750 cf Inflow=2.75 cfs 8.446 afPond 41.3P: South-West Temp Basin Primary=1.90 cfs 8.364 af Secondary=0.36 cfs 0.079 af Outflow=2.26 cfs 8.443 af Peak Elev=884.27' Storage=317 cf Inflow=2.40 cfs 7.600 afPond 44P: Wetland 4 Outflow=2.40 cfs 7.599 af Peak Elev=888.32' Storage=2,681 cf Inflow=0.53 cfs 1.606 afPond 46P: Triangle Basin Primary=0.52 cfs 1.606 af Secondary=0.00 cfs 0.000 af Outflow=0.52 cfs 1.606 af MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 225HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Peak Elev=909.80' Storage=6,507 cf Inflow=0.55 cfs 1.659 afPond 47P: Bluff Creek - West Basin - 60" Outflow=0.49 cfs 1.659 af Peak Elev=897.71' Storage=21,043 cf Inflow=1.49 cfs 4.541 afPond 48P: Bluff Creek - East Basin Outflow=0.91 cfs 4.541 af Peak Elev=903.49' Storage=265 cf Inflow=1.55 cfs 4.745 afPond 52P: South-Center Temp Basin Outflow=1.55 cfs 4.745 af Peak Elev=881.44' Storage=33,180 cf Inflow=2.00 cfs 8.084 afPond 54P: South-East Temp Basin Primary=1.23 cfs 8.081 af Secondary=0.00 cfs 0.000 af Outflow=1.23 cfs 8.081 af Total Runoff Area = 78.187 ac Runoff Volume = 45.353 af Average Runoff Depth = 6.96" 86.61% Pervious = 67.722 ac 13.39% Impervious = 10.465 ac MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 226HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 13.1S: Front Yards - North Rowhomes Runoff = 0.09 cfs @ 121.24 hrs, Volume= 0.265 af, Depth= 6.96" Routed to Pond 28P : Avienda Pkwy Surface Basin NOT UPDATED Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4 Area (sf) CN Adj Description 19,930 80 >75% Grass cover, Good, HSG D 19,930 80 98 Weighted Average, AMC Adjusted 19,930 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 5.0 Direct Entry, Subcatchment 13.1S: Front Yards - North Rowhomes Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.095 0.09 0.085 0.08 0.075 0.07 0.065 0.06 0.055 0.05 0.045 0.04 0.035 0.03 0.025 0.02 0.015 0.01 0.005 0 MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20" AMC=4 Runoff Area=19,930 sf Runoff Volume=0.265 af Runoff Depth=6.96" Tc=5.0 min AMC Adjusted CN=98 0.09 cfs MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 227HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 13.2S: Front Yards - South Rowhomes Runoff = 0.09 cfs @ 121.24 hrs, Volume= 0.283 af, Depth= 6.96" Routed to Pond 47P : Bluff Creek - West Basin - 60" PIPE Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4 Area (sf) CN Adj Description 21,220 80 >75% Grass cover, Good, HSG D 21,220 80 98 Weighted Average, AMC Adjusted 21,220 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 5.0 Direct Entry, Subcatchment 13.2S: Front Yards - South Rowhomes Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.1 0.095 0.09 0.085 0.08 0.075 0.07 0.065 0.06 0.055 0.05 0.045 0.04 0.035 0.03 0.025 0.02 0.015 0.01 0.005 0 MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20" AMC=4 Runoff Area=21,220 sf Runoff Volume=0.283 af Runoff Depth=6.96" Tc=5.0 min AMC Adjusted CN=98 0.09 cfs MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 228HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 16oS: East Offsite Runoff = 0.02 cfs @ 121.24 hrs, Volume= 0.068 af, Depth= 6.96" Routed to Pond 48P : Bluff Creek - East Basin Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4 Area (sf) CN Adj Description 1,184 80 >75% Grass cover, Good, HSG D 3,885 98 Paved parking, HSG D 5,069 94 98 Weighted Average, AMC Adjusted 1,184 23.36% Pervious Area 3,885 76.64% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 5.0 Direct Entry, Subcatchment 16oS: East Offsite Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.024 0.023 0.022 0.021 0.02 0.019 0.018 0.017 0.016 0.015 0.014 0.013 0.012 0.011 0.01 0.009 0.008 0.007 0.006 0.005 0.004 0.003 0.002 0.001 0 MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20" AMC=4 Runoff Area=5,069 sf Runoff Volume=0.068 af Runoff Depth=6.96" Tc=5.0 min AMC Adjusted CN=98 0.02 cfs MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 229HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 21S: Northwest Runoff = 1.24 cfs @ 121.37 hrs, Volume= 3.772 af, Depth= 6.96" Routed to Pond 21P : Northwest Basin w Filtration Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4 Area (sf) CN Adj Description 264,275 80 >75% Grass cover, Good, HSG D 19,020 98 Unconnected roofs, HSG D 283,295 81 98 Weighted Average, AMC UI Adjusted 264,275 93.29% Pervious Area 19,020 6.71% Impervious Area 19,020 100.00% Unconnected Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 10.3 100 0.0200 0.16 Sheet Flow, Grass: Short n= 0.150 P2= 2.87" 3.7 190 0.0150 0.86 Shallow Concentrated Flow, Short Grass Pasture Kv= 7.0 fps 0.9 150 0.1470 2.68 Shallow Concentrated Flow, Short Grass Pasture Kv= 7.0 fps 14.9 440 Total Subcatchment 21S: Northwest Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)1 0 MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20" AMC=4 Runoff Area=283,295 sf Runoff Volume=3.772 af Runoff Depth=6.96" Flow Length=440' Tc=14.9 min AMC UI Adjusted CN=98 1.24 cfs MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 230HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 22oS: From Lyman Runoff = 0.05 cfs @ 121.24 hrs, Volume= 0.140 af, Depth= 6.96" Routed to Reach 21R : Wetland 6 Lower Reach Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4 Area (sf) CN Adj Description 10,548 78 Meadow, non-grazed, HSG D 10,548 78 98 Weighted Average, AMC Adjusted 10,548 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 2.1 57 0.3330 0.44 Sheet Flow, Grass: Short n= 0.150 P2= 2.87" 2.9 Direct Entry, Make up to 5 minutes 5.0 57 Total Subcatchment 22oS: From Lyman Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.05 0.048 0.046 0.044 0.042 0.04 0.038 0.036 0.034 0.032 0.03 0.028 0.026 0.024 0.022 0.02 0.018 0.016 0.014 0.012 0.01 0.008 0.006 0.004 0.002 0 MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20" AMC=4 Runoff Area=10,548 sf Runoff Volume=0.140 af Runoff Depth=6.96" Flow Length=57' Slope=0.3330 '/' Tc=5.0 min AMC Adjusted CN=98 0.05 cfs MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 231HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 22S: Direct to Wetland 6 Runoff = 0.18 cfs @ 121.24 hrs, Volume= 0.555 af, Depth= 6.96" Routed to Reach 21R : Wetland 6 Lower Reach Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4 Area (sf) CN Adj Description 41,685 80 >75% Grass cover, Good, HSG D 41,685 80 98 Weighted Average, AMC Adjusted 41,685 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 5.0 Direct Entry, Subcatchment 22S: Direct to Wetland 6 Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.2 0.19 0.18 0.17 0.16 0.15 0.14 0.13 0.12 0.11 0.1 0.09 0.08 0.07 0.06 0.05 0.04 0.03 0.02 0.01 0 MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20" AMC=4 Runoff Area=41,685 sf Runoff Volume=0.555 af Runoff Depth=6.96" Tc=5.0 min AMC Adjusted CN=98 0.18 cfs MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 232HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 25S: West North Runoff = 0.87 cfs @ 121.30 hrs, Volume= 2.651 af, Depth= 6.96" Routed to Pond 25P : West-North w Filtration Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4 Area (sf) CN Adj Description 81,685 80 >75% Grass cover, Good, HSG D 99,930 98 Paved parking, HSG D 17,435 98 Unconnected roofs, HSG D 199,050 91 98 Weighted Average, AMC Adjusted 81,685 41.04% Pervious Area 117,365 58.96% Impervious Area 17,435 14.86% Unconnected Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 10.0 Direct Entry, Subcatchment 25S: West North Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.95 0.9 0.85 0.8 0.75 0.7 0.65 0.6 0.55 0.5 0.45 0.4 0.35 0.3 0.25 0.2 0.15 0.1 0.05 0 MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20" AMC=4 Runoff Area=199,050 sf Runoff Volume=2.651 af Runoff Depth=6.96" Tc=10.0 min AMC Adjusted CN=98 0.87 cfs MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 233HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 28S: Avienda Pkwy Runoff = 1.00 cfs @ 121.35 hrs, Volume= 3.031 af, Depth= 6.96" Routed to Pond 28P : Avienda Pkwy Surface Basin NOT UPDATED Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4 Area (sf) CN Adj Description 162,665 80 >75% Grass cover, Good, HSG D 64,980 98 Paved roads w/curbs & sewers, HSG D 227,645 85 98 Weighted Average, AMC Adjusted 162,665 71.46% Pervious Area 64,980 28.54% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 15.0 Direct Entry, Subcatchment 28S: Avienda Pkwy Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)1 0 MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20" AMC=4 Runoff Area=227,645 sf Runoff Volume=3.031 af Runoff Depth=6.96" Tc=15.0 min AMC Adjusted CN=98 1.00 cfs MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 234HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 29oS: North Offsite Runoff = 0.02 cfs @ 121.24 hrs, Volume= 0.073 af, Depth= 6.96" Routed to Pond 28P : Avienda Pkwy Surface Basin NOT UPDATED Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4 Area (sf) CN Adj Description 4,076 80 >75% Grass cover, Good, HSG D 1,391 98 Paved parking, HSG D 5,467 85 98 Weighted Average, AMC Adjusted 4,076 74.56% Pervious Area 1,391 25.44% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 5.0 Direct Entry, Subcatchment 29oS: North Offsite Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.026 0.024 0.022 0.02 0.018 0.016 0.014 0.012 0.01 0.008 0.006 0.004 0.002 0 MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20" AMC=4 Runoff Area=5,467 sf Runoff Volume=0.073 af Runoff Depth=6.96" Tc=5.0 min AMC Adjusted CN=98 0.02 cfs MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 235HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 31S: West Central Runoff = 0.17 cfs @ 121.34 hrs, Volume= 0.508 af, Depth= 6.96" Routed to Pond 31P : West-Central Surface Basin w Filtration Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4 Area (sf) CN Adj Description 24,670 80 >75% Grass cover, Good, HSG D 9,870 98 Unconnected roofs, HSG D * 3,610 98 Connected roofs, HSG D 38,150 86 98 Weighted Average, AMC Adjusted 24,670 64.67% Pervious Area 13,480 35.33% Impervious Area 9,870 73.22% Unconnected Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 10.3 100 0.0200 0.16 Sheet Flow, Grass: Short n= 0.150 P2= 2.87" 2.9 245 0.0410 1.42 Shallow Concentrated Flow, Short Grass Pasture Kv= 7.0 fps 13.2 345 Total Subcatchment 31S: West Central Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.18 0.17 0.16 0.15 0.14 0.13 0.12 0.11 0.1 0.09 0.08 0.07 0.06 0.05 0.04 0.03 0.02 0.01 0 MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20" AMC=4 Runoff Area=38,150 sf Runoff Volume=0.508 af Runoff Depth=6.96" Flow Length=345' Tc=13.2 min AMC Adjusted CN=98 0.17 cfs MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 236HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 33oS: Offsite West - North Runoff = 0.51 cfs @ 121.27 hrs, Volume= 1.543 af, Depth= 6.96" Routed to Pond 33P : Wetland 3 Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4 Area (sf) CN Adj Description 20,000 98 Unconnected roofs, HSG D 71,000 80 >75% Grass cover, Good, HSG D * 12,720 96 Wetland, Good, HSG D 12,145 58 Meadow, non-grazed, HSG B 115,865 83 98 Weighted Average, AMC UI Adjusted 95,865 82.74% Pervious Area 20,000 17.26% Impervious Area 20,000 100.00% Unconnected Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 5.0 25 0.0200 0.08 Sheet Flow, Grass: Dense n= 0.240 P2= 2.87" 2.3 406 0.0390 2.96 Shallow Concentrated Flow, Grassed Waterway Kv= 15.0 fps 7.3 431 Total Subcatchment 33oS: Offsite West - North Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.55 0.5 0.45 0.4 0.35 0.3 0.25 0.2 0.15 0.1 0.05 0 MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20" AMC=4 Runoff Area=115,865 sf Runoff Volume=1.543 af Runoff Depth=6.96" Flow Length=431' Tc=7.3 min AMC UI Adjusted CN=98 0.51 cfs MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 237HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 33S: Direct to Wetland 3 Runoff = 0.33 cfs @ 121.32 hrs, Volume= 0.991 af, Depth= 6.96" Routed to Pond 33P : Wetland 3 Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4 Area (sf) CN Adj Description * 29,365 96 Wetland, Good, HSG D 43,435 80 >75% Grass cover, Good, HSG D 1,585 98 Unconnected roofs, HSG D 74,385 87 98 Weighted Average, AMC UI Adjusted 72,800 97.87% Pervious Area 1,585 2.13% Impervious Area 1,585 100.00% Unconnected Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 12.0 Direct Entry, Subcatchment 33S: Direct to Wetland 3 Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.36 0.34 0.32 0.3 0.28 0.26 0.24 0.22 0.2 0.18 0.16 0.14 0.12 0.1 0.08 0.06 0.04 0.02 0 MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20" AMC=4 Runoff Area=74,385 sf Runoff Volume=0.991 af Runoff Depth=6.96" Tc=12.0 min AMC UI Adjusted CN=98 0.33 cfs MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 238HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 34dS: Offsite West Direct Runoff = 0.11 cfs @ 121.30 hrs, Volume= 0.338 af, Depth= 6.96" Routed to Reach 35R : Direct Runoff Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4 Area (sf) CN Adj Description 19,655 80 >75% Grass cover, Good, HSG D 5,690 98 Paved roads w/curbs & sewers, HSG D 25,345 84 98 Weighted Average, AMC Adjusted 19,655 77.55% Pervious Area 5,690 22.45% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 10.0 Direct Entry, Subcatchment 34dS: Offsite West Direct Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.12 0.115 0.11 0.105 0.1 0.095 0.09 0.085 0.08 0.075 0.07 0.065 0.06 0.055 0.05 0.045 0.04 0.035 0.03 0.025 0.02 0.015 0.01 0.005 0 MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20" AMC=4 Runoff Area=25,345 sf Runoff Volume=0.338 af Runoff Depth=6.96" Tc=10.0 min AMC Adjusted CN=98 0.11 cfs MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 239HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 34oS: Offsite to West South Runoff = 0.14 cfs @ 121.35 hrs, Volume= 0.437 af, Depth= 6.96" Routed to Pond 34P : West - South (existing) Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4 Area (sf) CN Adj Description 32,845 80 >75% Grass cover, Good, HSG D 32,845 80 98 Weighted Average, AMC Adjusted 32,845 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 15.0 Direct Entry, Subcatchment 34oS: Offsite to West South Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.16 0.15 0.14 0.13 0.12 0.11 0.1 0.09 0.08 0.07 0.06 0.05 0.04 0.03 0.02 0.01 0 MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20" AMC=4 Runoff Area=32,845 sf Runoff Volume=0.437 af Runoff Depth=6.96" Tc=15.0 min AMC Adjusted CN=98 0.14 cfs MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 240HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 34S: West Woods Runoff = 0.46 cfs @ 121.30 hrs, Volume= 1.406 af, Depth= 6.96" Routed to Pond 34P : West - South (existing) Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4 Area (sf) CN Adj Description 105,570 55 Woods, Good, HSG B 105,570 55 98 Weighted Average, AMC Adjusted 105,570 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 8.4 50 0.0600 0.10 Sheet Flow, Woods: Light underbrush n= 0.400 P2= 2.87" 2.7 218 0.0710 1.33 Shallow Concentrated Flow, Woodland Kv= 5.0 fps 11.1 268 Total Subcatchment 34S: West Woods Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.5 0.48 0.46 0.44 0.42 0.4 0.38 0.36 0.34 0.32 0.3 0.28 0.26 0.24 0.22 0.2 0.18 0.16 0.14 0.12 0.1 0.08 0.06 0.04 0.02 0 MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20" AMC=4 Runoff Area=105,570 sf Runoff Volume=1.406 af Runoff Depth=6.96" Flow Length=268' Tc=11.1 min AMC Adjusted CN=98 0.46 cfs MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 241HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 35S: Southwest Runoff = 0.72 cfs @ 121.37 hrs, Volume= 2.198 af, Depth= 6.96" Routed to Reach 35R : Direct Runoff Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4 Area (sf) CN Adj Description 165,040 55 Woods, Good, HSG B 165,040 55 98 Weighted Average, AMC Adjusted 165,040 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 16.0 75 0.0270 0.08 Sheet Flow, Woods: Light underbrush n= 0.400 P2= 2.87" 2.3 195 0.0820 1.43 Shallow Concentrated Flow, Woodland Kv= 5.0 fps 18.3 270 Total Subcatchment 35S: Southwest Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.8 0.75 0.7 0.65 0.6 0.55 0.5 0.45 0.4 0.35 0.3 0.25 0.2 0.15 0.1 0.05 0 MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20" AMC=4 Runoff Area=165,040 sf Runoff Volume=2.198 af Runoff Depth=6.96" Flow Length=270' Tc=18.3 min AMC Adjusted CN=98 0.72 cfs MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 242HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 36oS: Southwest Offsite Runoff = 0.01 cfs @ 121.24 hrs, Volume= 0.022 af, Depth= 6.96" Routed to Reach 30R : West Drainage Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4 Area (sf) CN Description 1,628 98 Paved parking, HSG D 1,628 100.00% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 5.0 Direct Entry, Subcatchment 36oS: Southwest Offsite Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.008 0.007 0.007 0.006 0.006 0.005 0.005 0.004 0.004 0.003 0.003 0.002 0.002 0.001 0.001 0.000 0 MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20" AMC=4 Runoff Area=1,628 sf Runoff Volume=0.022 af Runoff Depth=6.96" Tc=5.0 min CN=98 0.01 cfs MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 243HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 40.4S: So. Villas Private Drive Runoff = 0.28 cfs @ 121.32 hrs, Volume= 0.846 af, Depth= 6.96" Routed to Pond 52P : South-Center Temp Basin Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4 Area (sf) CN Adj Description 29,980 80 >75% Grass cover, Good, HSG D 33,565 98 Paved parking, HSG D 63,545 90 98 Weighted Average, AMC Adjusted 29,980 47.18% Pervious Area 33,565 52.82% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 8.3 70 0.0430 0.14 Sheet Flow, Lawn Grass: Dense n= 0.240 P2= 2.87" 4.7 775 0.0180 2.72 Shallow Concentrated Flow, Street Flow Paved Kv= 20.3 fps 13.0 845 Total Subcatchment 40.4S: So. Villas Private Drive Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.3 0.28 0.26 0.24 0.22 0.2 0.18 0.16 0.14 0.12 0.1 0.08 0.06 0.04 0.02 0 MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20" AMC=4 Runoff Area=63,545 sf Runoff Volume=0.846 af Runoff Depth=6.96" Flow Length=845' Tc=13.0 min AMC Adjusted CN=98 0.28 cfs MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 244HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 41.3S: South-West Runoff = 0.69 cfs @ 121.29 hrs, Volume= 2.095 af, Depth= 6.96" Routed to Pond 41.3P : South-West Temp Basin Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4 Area (sf) CN Adj Description 149,020 80 >75% Grass cover, Good, HSG D * 8,290 100 Water 157,310 81 98 Weighted Average, AMC Adjusted 149,020 94.73% Pervious Area 8,290 5.27% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 7.5 100 0.0450 0.22 Sheet Flow, Grass: Short n= 0.150 P2= 2.87" 1.0 90 0.0450 1.48 Shallow Concentrated Flow, Short Grass Pasture Kv= 7.0 fps 0.4 95 0.3333 4.04 Shallow Concentrated Flow, Short Grass Pasture Kv= 7.0 fps 8.9 285 Total Subcatchment 41.3S: South-West Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.75 0.7 0.65 0.6 0.55 0.5 0.45 0.4 0.35 0.3 0.25 0.2 0.15 0.1 0.05 0 MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20" AMC=4 Runoff Area=157,310 sf Runoff Volume=2.095 af Runoff Depth=6.96" Flow Length=285' Tc=8.9 min AMC Adjusted CN=98 0.69 cfs MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 245HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 42.1S: South Fringe Runoff = 0.10 cfs @ 121.24 hrs, Volume= 0.292 af, Depth= 6.96" Routed to Reach 42.2R : Southeast Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4 Area (sf) CN Adj Description 21,960 80 >75% Grass cover, Good, HSG D 21,960 80 98 Weighted Average, AMC Adjusted 21,960 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 5.0 Direct Entry, Subcatchment 42.1S: South Fringe Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.105 0.1 0.095 0.09 0.085 0.08 0.075 0.07 0.065 0.06 0.055 0.05 0.045 0.04 0.035 0.03 0.025 0.02 0.015 0.01 0.005 0 MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20" AMC=4 Runoff Area=21,960 sf Runoff Volume=0.292 af Runoff Depth=6.96" Tc=5.0 min AMC Adjusted CN=98 0.10 cfs MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 246HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 42.2S: Southeast Fringe Runoff = 0.04 cfs @ 121.24 hrs, Volume= 0.118 af, Depth= 6.96" Routed to Reach 42.2R : Southeast Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4 Area (sf) CN Adj Description 8,870 78 Meadow, non-grazed, HSG D 8,870 78 98 Weighted Average, AMC Adjusted 8,870 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 5.0 Direct Entry, Subcatchment 42.2S: Southeast Fringe Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.042 0.04 0.038 0.036 0.034 0.032 0.03 0.028 0.026 0.024 0.022 0.02 0.018 0.016 0.014 0.012 0.01 0.008 0.006 0.004 0.002 0 MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20" AMC=4 Runoff Area=8,870 sf Runoff Volume=0.118 af Runoff Depth=6.96" Tc=5.0 min AMC Adjusted CN=98 0.04 cfs MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 247HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 43.1S: East Woods Runoff = 0.61 cfs @ 121.35 hrs, Volume= 1.870 af, Depth= 6.96" Routed to Reach 40R : South Drainage Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4 Area (sf) CN Adj Description 140,400 55 Woods, Good, HSG B 140,400 55 98 Weighted Average, AMC Adjusted 140,400 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 11.1 75 0.0670 0.11 Sheet Flow, Woods: Light underbrush n= 0.400 P2= 2.87" 4.1 455 0.1380 1.86 Shallow Concentrated Flow, Woodland Kv= 5.0 fps 15.2 530 Total Subcatchment 43.1S: East Woods Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.65 0.6 0.55 0.5 0.45 0.4 0.35 0.3 0.25 0.2 0.15 0.1 0.05 0 MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20" AMC=4 Runoff Area=140,400 sf Runoff Volume=1.870 af Runoff Depth=6.96" Flow Length=530' Tc=15.2 min AMC Adjusted CN=98 0.61 cfs MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 248HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 43.2S: Northeast Woods Runoff = 0.33 cfs @ 121.40 hrs, Volume= 1.013 af, Depth= 6.96" Routed to Reach 44R : Southwest Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4 Area (sf) CN Adj Description 76,080 55 Woods, Good, HSG B 76,080 55 98 Weighted Average, AMC Adjusted 76,080 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 14.2 100 0.0650 0.12 Sheet Flow, Woods: Light underbrush n= 0.400 P2= 2.87" 5.3 523 0.1080 1.64 Shallow Concentrated Flow, Woodland Kv= 5.0 fps 19.5 623 Total Subcatchment 43.2S: Northeast Woods Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.36 0.34 0.32 0.3 0.28 0.26 0.24 0.22 0.2 0.18 0.16 0.14 0.12 0.1 0.08 0.06 0.04 0.02 0 MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20" AMC=4 Runoff Area=76,080 sf Runoff Volume=1.013 af Runoff Depth=6.96" Flow Length=623' Tc=19.5 min AMC Adjusted CN=98 0.33 cfs MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 249HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 44S: North Woods Runoff = 1.95 cfs @ 121.40 hrs, Volume= 5.941 af, Depth= 6.96" Routed to Pond 44P : Wetland 4 Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4 Area (sf) CN Adj Description 446,125 55 Woods, Good, HSG B 446,125 55 98 Weighted Average, AMC Adjusted 446,125 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 20.0 Direct Entry, Subcatchment 44S: North Woods Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)2 1 0 MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20" AMC=4 Runoff Area=446,125 sf Runoff Volume=5.941 af Runoff Depth=6.96" Tc=20.0 min AMC Adjusted CN=98 1.95 cfs MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 250HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 46S: Direct to Tri. Basin Runoff = 0.28 cfs @ 121.30 hrs, Volume= 0.841 af, Depth= 6.96" Routed to Pond 46P : Triangle Basin Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4 Area (sf) CN Adj Description 63,170 80 >75% Grass cover, Good, HSG D 63,170 80 98 Weighted Average, AMC Adjusted 63,170 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 3.4 40 0.0500 0.19 Sheet Flow, Grass: Short n= 0.150 P2= 2.87" 8.1 715 0.0440 1.47 Shallow Concentrated Flow, Short Grass Pasture Kv= 7.0 fps 11.5 755 Total Subcatchment 46S: Direct to Tri. Basin Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.3 0.28 0.26 0.24 0.22 0.2 0.18 0.16 0.14 0.12 0.1 0.08 0.06 0.04 0.02 0 MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20" AMC=4 Runoff Area=63,170 sf Runoff Volume=0.841 af Runoff Depth=6.96" Flow Length=755' Tc=11.5 min AMC Adjusted CN=98 0.28 cfs MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 251HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 46uS: Rear Yards of South Townhomes Runoff = 0.25 cfs @ 121.30 hrs, Volume= 0.765 af, Depth= 6.96" Routed to Reach 46uR : South Swale - at East Property Line of THs Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4 Area (sf) CN Adj Description 38,455 80 >75% Grass cover, Good, HSG D 19,000 98 Unconnected roofs, HSG D 57,455 86 98 Weighted Average, AMC Adjusted 38,455 66.93% Pervious Area 19,000 33.07% Impervious Area 19,000 100.00% Unconnected Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 3.4 40 0.0500 0.19 Sheet Flow, Grass: Short n= 0.150 P2= 2.87" 8.1 715 0.0440 1.47 Shallow Concentrated Flow, Short Grass Pasture Kv= 7.0 fps 11.5 755 Total Subcatchment 46uS: Rear Yards of South Townhomes Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.28 0.26 0.24 0.22 0.2 0.18 0.16 0.14 0.12 0.1 0.08 0.06 0.04 0.02 0 MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20" AMC=4 Runoff Area=57,455 sf Runoff Volume=0.765 af Runoff Depth=6.96" Flow Length=755' Tc=11.5 min AMC Adjusted CN=98 0.25 cfs MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 252HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 47S: Bluff Creek Pkwy - West Runoff = 0.45 cfs @ 121.30 hrs, Volume= 1.377 af, Depth= 6.96" Routed to Pond 47P : Bluff Creek - West Basin - 60" PIPE Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4 Area (sf) CN Adj Description * 52,305 80 >75% Grass cover, Good, HSG D 51,075 98 Paved roads w/curbs & sewers, HSG D 103,380 89 98 Weighted Average, AMC Adjusted 52,305 50.59% Pervious Area 51,075 49.41% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 10.0 Direct Entry, Subcatchment 47S: Bluff Creek Pkwy - West Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.5 0.48 0.46 0.44 0.42 0.4 0.38 0.36 0.34 0.32 0.3 0.28 0.26 0.24 0.22 0.2 0.18 0.16 0.14 0.12 0.1 0.08 0.06 0.04 0.02 0 MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20" AMC=4 Runoff Area=103,380 sf Runoff Volume=1.377 af Runoff Depth=6.96" Tc=10.0 min AMC Adjusted CN=98 0.45 cfs MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 253HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 48S: Bluff Creek Pkwy - East Runoff = 0.74 cfs @ 121.30 hrs, Volume= 2.246 af, Depth= 6.96" Routed to Pond 48P : Bluff Creek - East Basin Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4 Area (sf) CN Adj Description * 73,780 84 >75% Grass cover, Good, HSG D 94,920 98 Paved roads w/curbs & sewers, HSG D 168,700 92 98 Weighted Average, AMC Adjusted 73,780 43.73% Pervious Area 94,920 56.27% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 10.0 Direct Entry, Subcatchment 48S: Bluff Creek Pkwy - East Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.8 0.75 0.7 0.65 0.6 0.55 0.5 0.45 0.4 0.35 0.3 0.25 0.2 0.15 0.1 0.05 0 MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20" AMC=4 Runoff Area=168,700 sf Runoff Volume=2.246 af Runoff Depth=6.96" Tc=10.0 min AMC Adjusted CN=98 0.74 cfs MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 254HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 52S: South - Center Runoff = 1.27 cfs @ 121.47 hrs, Volume= 3.899 af, Depth= 6.96" Routed to Pond 52P : South-Center Temp Basin Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4 Area (sf) CN Adj Description 292,770 80 >75% Grass cover, Good, HSG D 292,770 80 98 Weighted Average, AMC Adjusted 292,770 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 13.7 100 0.0100 0.12 Sheet Flow, Grass: Short n= 0.150 P2= 2.87" 13.3 560 0.0100 0.70 Shallow Concentrated Flow, Short Grass Pasture Kv= 7.0 fps 27.0 660 Total Subcatchment 52S: South - Center Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)1 0 MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20" AMC=4 Runoff Area=292,770 sf Runoff Volume=3.899 af Runoff Depth=6.96" Flow Length=660' Slope=0.0100 '/' Tc=27.0 min AMC Adjusted CN=98 1.27 cfs MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 255HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 54S: South - East Runoff = 1.16 cfs @ 121.48 hrs, Volume= 3.544 af, Depth= 6.96" Routed to Pond 54P : South-East Temp Basin Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4 Area (sf) CN Adj Description 266,110 80 >75% Grass cover, Good, HSG D 266,110 80 98 Weighted Average, AMC Adjusted 266,110 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 14.3 168 0.0250 0.20 Sheet Flow, Grass: Short n= 0.150 P2= 2.87" 8.4 250 0.0050 0.49 Shallow Concentrated Flow, Short Grass Pasture Kv= 7.0 fps 5.0 Direct Entry, Pipe flow 27.7 418 Total Subcatchment 54S: South - East Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)1 0 MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20" AMC=4 Runoff Area=266,110 sf Runoff Volume=3.544 af Runoff Depth=6.96" Flow Length=418' Tc=27.7 min AMC Adjusted CN=98 1.16 cfs MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 256HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 55S: Direct to Bluff Creek - East Basin Runoff = 0.73 cfs @ 121.24 hrs, Volume= 2.227 af, Depth= 6.96" Routed to Pond 48P : Bluff Creek - East Basin Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4 Area (sf) CN Adj Description 167,215 80 >75% Grass cover, Good, HSG D 167,215 80 98 Weighted Average, AMC Adjusted 167,215 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 5.0 Direct Entry, Subcatchment 55S: Direct to Bluff Creek - East Basin Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.8 0.75 0.7 0.65 0.6 0.55 0.5 0.45 0.4 0.35 0.3 0.25 0.2 0.15 0.1 0.05 0 MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20" AMC=4 Runoff Area=167,215 sf Runoff Volume=2.227 af Runoff Depth=6.96" Tc=5.0 min AMC Adjusted CN=98 0.73 cfs MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 257HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Reach 20R: Northwest Drainage [40] Hint: Not Described (Outflow=Inflow) Inflow Area = 18.081 ac, 25.74% Impervious, Inflow Depth > 6.69" for 10 day snowmelt event Inflow = 2.46 cfs @ 123.32 hrs, Volume= 10.077 af Outflow = 2.46 cfs @ 123.32 hrs, Volume= 10.077 af, Atten= 0%, Lag= 0.0 min Routed to Reach 50R : Bluff Creek Drainage Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Reach 20R: Northwest Drainage Inflow Outflow Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)2 1 0 Inflow Area=18.081 ac 2.46 cfs 2.46 cfs MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 258HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Reach 21R: Wetland 6 Lower Reach Inflow Area = 18.081 ac, 25.74% Impervious, Inflow Depth > 6.69" for 10 day snowmelt event Inflow = 2.46 cfs @ 123.26 hrs, Volume= 10.077 af Outflow = 2.46 cfs @ 123.32 hrs, Volume= 10.077 af, Atten= 0%, Lag= 3.7 min Routed to Reach 20R : Northwest Drainage Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Max. Velocity= 0.64 fps, Min. Travel Time= 4.8 min Avg. Velocity = 0.35 fps, Avg. Travel Time= 9.0 min Peak Storage= 716 cf @ 123.32 hrs Average Depth at Peak Storage= 0.32' , Surface Width= 23.95' Bank-Full Depth= 5.99' Flow Area= 570.1 sf, Capacity= 3,072.14 cfs Custom cross-section, Length= 187.0' Slope= 0.0053 '/' (102 Elevation Intervals) Constant n= 0.050 Scattered brush, heavy weeds Inlet Invert= 885.00', Outlet Invert= 884.00' ‡ Offset Elevation Chan.Depth (feet) (feet) (feet) 0.00 890.40 0.00 43.10 886.55 3.85 85.60 884.41 5.99 126.20 885.14 5.26 145.10 890.40 0.00 Depth End Area Perim. Width Storage Discharge (feet) (sq-ft) (feet) (feet) (cubic-feet) (cfs) 0.00 0.0 0.0 0.0 0 0.00 0.73 20.1 55.1 55.1 3,761 22.32 2.14 121.1 88.4 88.2 22,648 324.64 5.99 570.1 146.1 145.1 106,618 3,072.14 MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 259HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Reach 21R: Wetland 6 Lower Reach Inflow Outflow Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)2 1 0 Inflow Area=18.081 ac Avg. Flow Depth=0.32' Max Vel=0.64 fps n=0.050 L=187.0' S=0.0053 '/' Capacity=3,072.14 cfs 2.46 cfs 2.46 cfs MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 260HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Reach 30R: West Drainage [40] Hint: Not Described (Outflow=Inflow) Inflow Area = 12.829 ac, 7.58% Impervious, Inflow Depth = 6.96" for 10 day snowmelt event Inflow = 2.17 cfs @ 121.45 hrs, Volume= 7.442 af Outflow = 2.17 cfs @ 121.45 hrs, Volume= 7.442 af, Atten= 0%, Lag= 0.0 min Routed to Reach 50R : Bluff Creek Drainage Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Reach 30R: West Drainage Inflow Outflow Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)2 1 0 Inflow Area=12.829 ac 2.17 cfs 2.17 cfs MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 261HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Reach 35R: Direct Runoff [40] Hint: Not Described (Outflow=Inflow) Inflow Area = 4.371 ac, 2.99% Impervious, Inflow Depth = 6.96" for 10 day snowmelt event Inflow = 0.83 cfs @ 121.37 hrs, Volume= 2.535 af Outflow = 0.83 cfs @ 121.37 hrs, Volume= 2.535 af, Atten= 0%, Lag= 0.0 min Routed to Reach 30R : West Drainage Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Reach 35R: Direct Runoff Inflow Outflow Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.9 0.85 0.8 0.75 0.7 0.65 0.6 0.55 0.5 0.45 0.4 0.35 0.3 0.25 0.2 0.15 0.1 0.05 0 Inflow Area=4.371 ac 0.83 cfs 0.83 cfs MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 262HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Reach 40R: South Drainage [40] Hint: Not Described (Outflow=Inflow) Inflow Area = 47.277 ac, 10.23% Impervious, Inflow Depth = 6.96" for 10 day snowmelt event Inflow = 6.52 cfs @ 121.85 hrs, Volume= 27.418 af Outflow = 6.52 cfs @ 121.85 hrs, Volume= 27.418 af, Atten= 0%, Lag= 0.0 min Routed to Reach 50R : Bluff Creek Drainage Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Reach 40R: South Drainage Inflow Outflow Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)7 6 5 4 3 2 1 0 Inflow Area=47.277 ac 6.52 cfs 6.52 cfs MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 263HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Reach 42.2R: Southeast [40] Hint: Not Described (Outflow=Inflow) Inflow Area = 14.645 ac, 15.49% Impervious, Inflow Depth > 6.96" for 10 day snowmelt event Inflow = 1.28 cfs @ 127.15 hrs, Volume= 8.492 af Outflow = 1.28 cfs @ 127.15 hrs, Volume= 8.492 af, Atten= 0%, Lag= 0.0 min Routed to Reach 40R : South Drainage Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Reach 42.2R: Southeast Inflow Outflow Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)1 0 Inflow Area=14.645 ac 1.28 cfs 1.28 cfs MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 264HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Reach 44R: Southwest [40] Hint: Not Described (Outflow=Inflow) Inflow Area = 29.409 ac, 8.74% Impervious, Inflow Depth = 6.96" for 10 day snowmelt event Inflow = 4.76 cfs @ 121.90 hrs, Volume= 17.056 af Outflow = 4.76 cfs @ 121.90 hrs, Volume= 17.056 af, Atten= 0%, Lag= 0.0 min Routed to Reach 40R : South Drainage Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Reach 44R: Southwest Inflow Outflow Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)5 4 3 2 1 0 Inflow Area=29.409 ac 4.76 cfs 4.76 cfs MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 265HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Reach 46uR: South Swale - at East Property Line of THs Inflow Area = 1.319 ac, 33.07% Impervious, Inflow Depth = 6.96" for 10 day snowmelt event Inflow = 0.25 cfs @ 121.30 hrs, Volume= 0.765 af Outflow = 0.25 cfs @ 121.33 hrs, Volume= 0.765 af, Atten= 0%, Lag= 1.6 min Routed to Pond 46P : Triangle Basin Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Max. Velocity= 1.43 fps, Min. Travel Time= 0.4 min Avg. Velocity = 0.67 fps, Avg. Travel Time= 0.8 min Peak Storage= 6 cf @ 121.33 hrs Average Depth at Peak Storage= 0.06' , Surface Width= 3.33' Bank-Full Depth= 0.50' Flow Area= 2.3 sf, Capacity= 11.72 cfs 3.00' x 0.50' deep channel, n= 0.025 Short grass Side Slope Z-value= 3.0 '/' Top Width= 6.00' Length= 34.0' Slope= 0.0294 '/' Inlet Invert= 894.00', Outlet Invert= 893.00' ‡ Reach 46uR: South Swale - at East Property Line of THs Inflow Outflow Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.28 0.26 0.24 0.22 0.2 0.18 0.16 0.14 0.12 0.1 0.08 0.06 0.04 0.02 0 Inflow Area=1.319 ac Avg. Flow Depth=0.06' Max Vel=1.43 fps n=0.025 L=34.0' S=0.0294 '/' Capacity=11.72 cfs 0.25 cfs 0.25 cfs MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 266HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Reach 48R: Developed Area To Wetland 4 [40] Hint: Not Described (Outflow=Inflow) Inflow Area = 2.860 ac, 40.99% Impervious, Inflow Depth = 6.96" for 10 day snowmelt event Inflow = 0.49 cfs @ 122.03 hrs, Volume= 1.659 af Outflow = 0.49 cfs @ 122.03 hrs, Volume= 1.659 af, Atten= 0%, Lag= 0.0 min Routed to Pond 44P : Wetland 4 Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Reach 48R: Developed Area To Wetland 4 Inflow Outflow Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.5 0.45 0.4 0.35 0.3 0.25 0.2 0.15 0.1 0.05 0 Inflow Area=2.860 ac 0.49 cfs 0.49 cfs MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 267HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Reach 50R: Bluff Creek Drainage [40] Hint: Not Described (Outflow=Inflow) Inflow Area = 78.187 ac, 13.39% Impervious, Inflow Depth > 6.90" for 10 day snowmelt event Inflow = 10.93 cfs @ 121.86 hrs, Volume= 44.936 af Outflow = 10.93 cfs @ 121.86 hrs, Volume= 44.936 af, Atten= 0%, Lag= 0.0 min Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Reach 50R: Bluff Creek Drainage Inflow Outflow Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)12 11 10 9 8 7 6 5 4 3 2 1 0 Inflow Area=78.187 ac 10.93 cfs 10.93 cfs MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 268HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Pond 21P: Northwest Basin w Filtration Inflow Area = 16.882 ac, 27.57% Impervious, Inflow Depth = 6.96" for 10 day snowmelt event Inflow = 2.50 cfs @ 122.30 hrs, Volume= 9.793 af Outflow = 2.31 cfs @ 123.46 hrs, Volume= 9.381 af, Atten= 8%, Lag= 69.7 min Primary = 2.31 cfs @ 123.46 hrs, Volume= 9.381 af Routed to Reach 21R : Wetland 6 Lower Reach Secondary = 0.00 cfs @ 0.00 hrs, Volume= 0.000 af Routed to Reach 21R : Wetland 6 Lower Reach Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 893.80' @ 123.46 hrs Surf.Area= 33,161 sf Storage= 40,151 cf Plug-Flow detention time= 859.6 min calculated for 9.381 af (96% of inflow) Center-of-Mass det. time= 575.1 min ( 8,139.5 - 7,564.4 ) Volume Invert Avail.Storage Storage Description #1 892.50' 158,719 cf Open Pond (Prismatic) Listed below (Recalc) Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 892.50 8,125 0 0 892.54 8,180 326 326 892.55 30,215 192 518 893.00 31,280 13,836 14,354 894.00 33,630 32,455 46,809 895.00 36,050 34,840 81,649 896.00 38,530 37,290 118,939 897.00 41,030 39,780 158,719 Device Routing Invert Outlet Devices #1 Primary 887.86'18.0" Round Culvert L= 30.0' RCP, sq.cut end projecting, Ke= 0.500 Inlet / Outlet Invert= 887.86' / 887.71' S= 0.0050 '/' Cc= 0.900 n= 0.011 Concrete pipe, straight & clean, Flow Area= 1.77 sf #2 Device 1 889.70'8.0" Vert. Orifice - Underdrain C= 0.600 Limited to weir flow at low heads #3 Device 1 893.10'18.0" Vert. Orifice - Overflow C= 0.600 Limited to weir flow at low heads #4 Device 2 892.50'0.800 in/hr Exfiltration over Surface area from 891.69' - 891.74' Excluded Surface area = 0 sf Phase-In= 0.01' #5 Secondary 896.75'20.0' long x 30.0' breadth Broad-Crested Rectangular Weir Head (feet) 0.20 0.40 0.60 0.80 1.00 1.20 1.40 1.60 Coef. (English) 2.68 2.70 2.70 2.64 2.63 2.64 2.64 2.63 MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 269HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Primary OutFlow Max=2.31 cfs @ 123.46 hrs HW=893.80' TW=885.32' (Dynamic Tailwater) 1=Culvert (Passes 2.31 cfs of 19.39 cfs potential flow) 2=Orifice - Underdrain (Passes 0.00 cfs of 3.26 cfs potential flow) 4=Exfiltration (Exfiltration Controls 0.00 cfs) 3=Orifice - Overflow (Orifice Controls 2.31 cfs @ 2.85 fps) Secondary OutFlow Max=0.00 cfs @ 0.00 hrs HW=892.50' TW=885.00' (Dynamic Tailwater) 5=Broad-Crested Rectangular Weir ( Controls 0.00 cfs) Pond 21P: Northwest Basin w Filtration Inflow Outflow Primary Secondary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)2 1 0 Inflow Area=16.882 ac Peak Elev=893.80' Storage=40,151 cf 2.50 cfs 2.31 cfs 2.31 cfs 0.00 cfs MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 270HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Pond 25P: West-North w Filtration Inflow Area = 4.570 ac, 58.96% Impervious, Inflow Depth = 6.96" for 10 day snowmelt event Inflow = 0.87 cfs @ 121.30 hrs, Volume= 2.651 af Outflow = 0.66 cfs @ 122.90 hrs, Volume= 2.651 af, Atten= 24%, Lag= 95.9 min Primary = 0.66 cfs @ 122.90 hrs, Volume= 2.651 af Routed to Pond 21P : Northwest Basin w Filtration Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 915.92' @ 122.90 hrs Surf.Area= 17,854 sf Storage= 7,224 cf Plug-Flow detention time= 56.8 min calculated for 2.651 af (100% of inflow) Center-of-Mass det. time= 56.8 min ( 7,442.4 - 7,385.6 ) Volume Invert Avail.Storage Storage Description #1 914.93' 36,108 cf Rock Bed (Prismatic) Listed below (Recalc) 90,520 cf Overall - 249 cf Embedded = 90,271 cf x 40.0% Voids #2 914.94' 249 cf 8.0" Round Pipe Storage Inside #1 L= 714.0' 36,357 cf Total Available Storage Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 914.93 17,854 0 0 920.00 17,854 90,520 90,520 Device Routing Invert Outlet Devices #1 Primary 908.00'18.0" Round Culvert L= 164.0' RCP, sq.cut end projecting, Ke= 0.500 Inlet / Outlet Invert= 908.00' / 905.82' S= 0.0133 '/' Cc= 0.900 n= 0.011 Concrete pipe, straight & clean, Flow Area= 1.77 sf #2 Device 1 912.63'8.0" Vert. Underdrain C= 0.600 Limited to weir flow at low heads #3 Device 1 915.67'18.0" Vert. Overflow C= 0.600 Limited to weir flow at low heads #4 Device 2 914.93'0.800 in/hr Filtration over Surface area Phase-In= 0.01' Primary OutFlow Max=0.66 cfs @ 122.90 hrs HW=915.92' TW=893.80' (Dynamic Tailwater) 1=Culvert (Passes 0.66 cfs of 21.78 cfs potential flow) 2=Underdrain (Passes 0.33 cfs of 2.89 cfs potential flow) 4=Filtration (Exfiltration Controls 0.33 cfs) 3=Overflow (Orifice Controls 0.33 cfs @ 1.70 fps) MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 271HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Pond 25P: West-North w Filtration Inflow Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.95 0.9 0.85 0.8 0.75 0.7 0.65 0.6 0.55 0.5 0.45 0.4 0.35 0.3 0.25 0.2 0.15 0.1 0.05 0 Inflow Area=4.570 ac Peak Elev=915.92' Storage=7,224 cf 0.87 cfs 0.66 cfs MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 272HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Pond 28P: Avienda Pkwy Surface Basin NOT UPDATED [44] Hint: Outlet device #3 is below defined storage Inflow Area = 5.809 ac, 26.23% Impervious, Inflow Depth = 6.96" for 10 day snowmelt event Inflow = 1.11 cfs @ 121.35 hrs, Volume= 3.370 af Outflow = 0.82 cfs @ 123.06 hrs, Volume= 3.370 af, Atten= 25%, Lag= 102.6 min Primary = 0.82 cfs @ 123.06 hrs, Volume= 3.370 af Routed to Pond 21P : Northwest Basin w Filtration Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 913.02' @ 123.06 hrs Surf.Area= 33,073 sf Storage= 15,556 cf Plug-Flow detention time= 466.0 min calculated for 3.370 af (100% of inflow) Center-of-Mass det. time= 466.1 min ( 7,855.4 - 7,389.3 ) Volume Invert Avail.Storage Storage Description #1 912.53' 292,399 cf Open Pond (Prismatic) Listed below (Recalc) Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 912.53 30,930 0 0 919.00 59,456 292,399 292,399 Device Routing Invert Outlet Devices #1 Primary 908.15'12.0" Round Culvert L= 159.0' RCP, square edge headwall, Ke= 0.500 Inlet / Outlet Invert= 908.15' / 906.81' S= 0.0084 '/' Cc= 0.900 n= 0.013 Concrete pipe, straight & clean, Flow Area= 0.79 sf #2 Device 1 909.73'12.0" Round Culvert L= 165.0' RCP, square edge headwall, Ke= 0.500 Inlet / Outlet Invert= 909.73' / 908.15' S= 0.0096 '/' Cc= 0.900 n= 0.013 Concrete pipe, straight & clean, Flow Area= 0.79 sf #3 Device 2 912.45'12.0" Round Culvert L= 17.0' RCP, end-section conforming to fill, Ke= 0.500 Inlet / Outlet Invert= 912.45' / 912.37' S= 0.0047 '/' Cc= 0.900 n= 0.013 Concrete pipe, straight & clean, Flow Area= 0.79 sf Primary OutFlow Max=0.82 cfs @ 123.06 hrs HW=913.02' TW=893.80' (Dynamic Tailwater) 1=Culvert (Passes 0.82 cfs of 5.64 cfs potential flow) 2=Culvert (Passes 0.82 cfs of 4.79 cfs potential flow) 3=Culvert (Barrel Controls 0.82 cfs @ 2.59 fps) MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 273HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Pond 28P: Avienda Pkwy Surface Basin NOT UPDATED Inflow Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)1 0 Inflow Area=5.809 ac Peak Elev=913.02' Storage=15,556 cf 1.11 cfs 0.82 cfs MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 274HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Pond 31P: West-Central Surface Basin w Filtration Inflow Area = 0.876 ac, 35.33% Impervious, Inflow Depth = 6.96" for 10 day snowmelt event Inflow = 0.17 cfs @ 121.34 hrs, Volume= 0.508 af Outflow = 0.10 cfs @ 123.90 hrs, Volume= 0.508 af, Atten= 38%, Lag= 153.6 min Primary = 0.10 cfs @ 123.90 hrs, Volume= 0.508 af Routed to Pond 33P : Wetland 3 Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 924.17' @ 123.90 hrs Surf.Area= 5,581 sf Storage= 909 cf Plug-Flow detention time= 26.2 min calculated for 0.508 af (100% of inflow) Center-of-Mass det. time= 26.2 min ( 7,414.7 - 7,388.6 ) Volume Invert Avail.Storage Storage Description #1 924.00' 13,385 cf Surface Basin (Prismatic) Listed below (Recalc) Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 924.00 5,360 0 0 926.00 8,025 13,385 13,385 Device Routing Invert Outlet Devices #1 Primary 920.93'15.0" Round Culvert L= 42.0' RCP, sq.cut end projecting, Ke= 0.500 Inlet / Outlet Invert= 920.93' / 920.80' S= 0.0031 '/' Cc= 0.900 n= 0.011 Concrete pipe, straight & clean, Flow Area= 1.23 sf #2 Device 1 920.93'8.0" Vert. Orifice/Grate - Underdrain C= 0.600 Limited to weir flow at low heads #3 Device 1 925.00'8.0" Vert. Orifice/Grate - Overflow C= 0.600 Limited to weir flow at low heads #4 Device 2 924.00'0.800 in/hr Filtration over Horizontal area above 923.22' Excluded Horizontal area = 0 sf Phase-In= 0.01' Primary OutFlow Max=0.10 cfs @ 123.90 hrs HW=924.17' TW=921.02' (Dynamic Tailwater) 1=Culvert (Passes 0.10 cfs of 9.55 cfs potential flow) 2=Orifice/Grate - Underdrain (Passes 0.10 cfs of 2.86 cfs potential flow) 4=Filtration (Exfiltration Controls 0.10 cfs) 3=Orifice/Grate - Overflow ( Controls 0.00 cfs) MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 275HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Pond 31P: West-Central Surface Basin w Filtration Inflow Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.18 0.17 0.16 0.15 0.14 0.13 0.12 0.11 0.1 0.09 0.08 0.07 0.06 0.05 0.04 0.03 0.02 0.01 0 Inflow Area=0.876 ac Peak Elev=924.17' Storage=909 cf 0.17 cfs 0.10 cfs MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 276HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Pond 33P: Wetland 3 Inflow Area = 5.243 ac, 15.35% Impervious, Inflow Depth = 6.96" for 10 day snowmelt event Inflow = 0.94 cfs @ 121.27 hrs, Volume= 3.041 af Outflow = 0.78 cfs @ 122.58 hrs, Volume= 3.042 af, Atten= 17%, Lag= 78.5 min Primary = 0.78 cfs @ 122.58 hrs, Volume= 3.042 af Routed to Pond 34P : West - South (existing) Secondary = 0.00 cfs @ 0.00 hrs, Volume= 0.000 af Routed to Reach 30R : West Drainage Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 921.03' @ 122.58 hrs Surf.Area= 31,060 sf Storage= 7,168 cf Plug-Flow detention time= 143.2 min calculated for 3.041 af (100% of inflow) Center-of-Mass det. time= 143.4 min ( 7,533.2 - 7,389.8 ) Volume Invert Avail.Storage Storage Description #1 920.58' 140,121 cf Custom Stage Data (Prismatic) Listed below (Recalc) Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 920.58 100 0 0 921.00 30,000 6,321 6,321 922.00 68,200 49,100 55,421 923.00 101,200 84,700 140,121 Device Routing Invert Outlet Devices #1 Primary 920.58'12.0" Round Culvert L= 455.0' RCP, end-section conforming to fill, Ke= 0.500 Inlet / Outlet Invert= 920.58' / 911.02' S= 0.0210 '/' Cc= 0.900 n= 0.013 Concrete pipe, straight & clean, Flow Area= 0.79 sf #2 Secondary 921.90'Asymmetrical Weir, C= 3.27 Offset (feet) 0.00 19.00 40.00 50.00 76.00 103.00 Height (feet) 1.50 0.50 0.00 0.00 0.50 1.50 Primary OutFlow Max=0.78 cfs @ 122.58 hrs HW=921.03' TW=907.54' (Dynamic Tailwater) 1=Culvert (Inlet Controls 0.78 cfs @ 2.28 fps) Secondary OutFlow Max=0.00 cfs @ 0.00 hrs HW=920.58' TW=0.00' (Dynamic Tailwater) 2=Asymmetrical Weir ( Controls 0.00 cfs) MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 277HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Pond 33P: Wetland 3 Inflow Outflow Primary Secondary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)1 0 Inflow Area=5.243 ac Peak Elev=921.03' Storage=7,168 cf 0.94 cfs 0.78 cfs 0.78 cfs 0.00 cfs MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 278HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Pond 34P: West - South (existing) Inflow Area = 8.421 ac, 9.56% Impervious, Inflow Depth = 6.96" for 10 day snowmelt event Inflow = 1.34 cfs @ 121.42 hrs, Volume= 4.885 af Outflow = 1.34 cfs @ 121.53 hrs, Volume= 4.885 af, Atten= 0%, Lag= 6.7 min Primary = 1.34 cfs @ 121.53 hrs, Volume= 4.885 af Routed to Reach 30R : West Drainage Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 907.56' @ 121.53 hrs Surf.Area= 0.031 ac Storage= 0.009 af Plug-Flow detention time= 4.2 min calculated for 4.885 af (100% of inflow) Center-of-Mass det. time= 4.3 min ( 7,482.5 - 7,478.2 ) Volume Invert Avail.Storage Storage Description #1 907.00' 1.603 af Custom Stage Data (Prismatic) Listed below (Recalc) Elevation Surf.Area Inc.Store Cum.Store (feet) (acres) (acre-feet) (acre-feet) 907.00 0.000 0.000 0.000 908.00 0.055 0.028 0.028 909.00 0.208 0.131 0.159 910.00 0.413 0.310 0.469 911.00 0.573 0.493 0.962 912.00 0.709 0.641 1.603 Device Routing Invert Outlet Devices #1 Primary 907.00'15.0" Round Culvert L= 48.8' RCP, end-section conforming to fill, Ke= 0.500 Inlet / Outlet Invert= 907.00' / 906.00' S= 0.0205 '/' Cc= 0.900 n= 0.013 Concrete pipe, straight & clean, Flow Area= 1.23 sf #2 Primary 911.22'Asymmetrical Weir, C= 3.27 Offset (feet) 0.00 12.00 18.00 28.00 49.00 88.00 Height (feet) 1.35 0.02 0.00 0.15 0.70 1.35 Primary OutFlow Max=1.34 cfs @ 121.53 hrs HW=907.56' TW=0.00' (Dynamic Tailwater) 1=Culvert (Inlet Controls 1.34 cfs @ 2.54 fps) 2=Asymmetrical Weir ( Controls 0.00 cfs) MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 279HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Pond 34P: West - South (existing) Inflow Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)1 0 Inflow Area=8.421 ac Peak Elev=907.56' Storage=0.009 af 1.34 cfs 1.34 cfs MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 280HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Pond 41.3P: South-West Temp Basin Inflow Area = 14.560 ac, 9.59% Impervious, Inflow Depth = 6.96" for 10 day snowmelt event Inflow = 2.75 cfs @ 121.37 hrs, Volume= 8.446 af Outflow = 2.26 cfs @ 122.76 hrs, Volume= 8.443 af, Atten= 18%, Lag= 83.4 min Primary = 1.90 cfs @ 122.76 hrs, Volume= 8.364 af Routed to Reach 44R : Southwest Secondary = 0.36 cfs @ 122.76 hrs, Volume= 0.079 af Routed to Reach 44R : Southwest Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 877.24' @ 122.76 hrs Surf.Area= 17,627 sf Storage= 22,750 cf Plug-Flow detention time= 178.7 min calculated for 8.443 af (100% of inflow) Center-of-Mass det. time= 176.2 min ( 7,645.5 - 7,469.3 ) Volume Invert Avail.Storage Storage Description #1 875.63' 126,081 cf Surface Basin (Prismatic) Listed below (Recalc) Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 875.63 8,290 0 0 876.00 12,755 3,893 3,893 878.00 20,605 33,360 37,253 879.00 26,525 23,565 60,818 880.00 32,000 29,263 90,081 881.00 40,000 36,000 126,081 Device Routing Invert Outlet Devices #1 Primary 875.63'15.0" Round Culvert L= 46.0' RCP, end-section conforming to fill, Ke= 0.500 Inlet / Outlet Invert= 875.63' / 875.00' S= 0.0137 '/' Cc= 0.900 n= 0.011 Concrete pipe, straight & clean, Flow Area= 1.23 sf #2 Secondary 877.00'24.0" Round Culvert L= 46.0' RCP, end-section conforming to fill, Ke= 0.500 Inlet / Outlet Invert= 877.00' / 876.37' S= 0.0137 '/' Cc= 0.900 n= 0.011 Concrete pipe, straight & clean, Flow Area= 3.14 sf #3 Device 1 875.63'8.0" Round Culvert L= 8.0' CPP, square edge headwall, Ke= 0.500 Inlet / Outlet Invert= 875.63' / 875.52' S= 0.0138 '/' Cc= 0.900 n= 0.011 PVC, smooth interior, Flow Area= 0.35 sf Primary OutFlow Max=1.90 cfs @ 122.76 hrs HW=877.24' TW=0.00' (Dynamic Tailwater) 1=Culvert (Passes 1.90 cfs of 5.87 cfs potential flow) 3=Culvert (Inlet Controls 1.90 cfs @ 5.44 fps) Secondary OutFlow Max=0.36 cfs @ 122.76 hrs HW=877.24' TW=0.00' (Dynamic Tailwater) 2=Culvert (Inlet Controls 0.36 cfs @ 1.67 fps) MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 281HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Pond 41.3P: South-West Temp Basin Inflow Outflow Primary Secondary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)3 2 1 0 Inflow Area=14.560 ac Peak Elev=877.24' Storage=22,750 cf 2.75 cfs 2.26 cfs 1.90 cfs 0.36 cfs MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 282HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Pond 44P: Wetland 4 Inflow Area = 13.102 ac, 8.95% Impervious, Inflow Depth = 6.96" for 10 day snowmelt event Inflow = 2.40 cfs @ 121.49 hrs, Volume= 7.600 af Outflow = 2.40 cfs @ 121.50 hrs, Volume= 7.599 af, Atten= 0%, Lag= 0.7 min Primary = 2.40 cfs @ 121.50 hrs, Volume= 7.599 af Routed to Reach 44R : Southwest Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 884.27' @ 121.50 hrs Surf.Area= 1,471 sf Storage= 317 cf Plug-Flow detention time= 6.3 min calculated for 7.599 af (100% of inflow) Center-of-Mass det. time= 5.6 min ( 7,442.9 - 7,437.3 ) Volume Invert Avail.Storage Storage Description #1 884.00' 37,633 cf Custom Stage Data (Prismatic) Listed below (Recalc) Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 884.00 870 0 0 884.50 1,980 713 713 885.00 3,500 1,370 2,083 886.00 7,800 5,650 7,733 887.00 14,000 10,900 18,633 888.00 24,000 19,000 37,633 Device Routing Invert Outlet Devices #1 Primary 884.03'Asymmetrical Weir, C= 3.27 Offset (feet) 0.00 51.00 133.60 176.00 217.30 239.00 Elev. (feet) 889.78 886.05 884.03 885.84 889.00 889.78 Primary OutFlow Max=2.40 cfs @ 121.50 hrs HW=884.27' TW=0.00' (Dynamic Tailwater) 1=Asymmetrical Weir (Weir Controls 2.40 cfs @ 0.64 fps) MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 283HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Pond 44P: Wetland 4 Inflow Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)2 1 0 Inflow Area=13.102 ac Peak Elev=884.27' Storage=317 cf 2.40 cfs 2.40 cfs MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 284HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Pond 46P: Triangle Basin Inflow Area = 2.769 ac, 15.75% Impervious, Inflow Depth = 6.96" for 10 day snowmelt event Inflow = 0.53 cfs @ 121.30 hrs, Volume= 1.606 af Outflow = 0.52 cfs @ 121.47 hrs, Volume= 1.606 af, Atten= 1%, Lag= 9.9 min Primary = 0.52 cfs @ 121.47 hrs, Volume= 1.606 af Routed to Pond 41.3P : South-West Temp Basin Secondary = 0.00 cfs @ 0.00 hrs, Volume= 0.000 af Routed to Pond 41.3P : South-West Temp Basin Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 888.32' @ 121.47 hrs Surf.Area= 3,060 sf Storage= 2,681 cf Plug-Flow detention time= 388.5 min calculated for 1.606 af (100% of inflow) Center-of-Mass det. time= 388.5 min ( 7,775.9 - 7,387.4 ) Volume Invert Avail.Storage Storage Description #1 887.17' 14,801 cf Open pond (Prismatic) Listed below (Recalc) Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 887.17 1,586 0 0 890.90 6,350 14,801 14,801 Device Routing Invert Outlet Devices #1 Primary 884.37'18.0" Round Culvert L= 125.0' RCP, sq.cut end projecting, Ke= 0.500 Inlet / Outlet Invert= 884.37' / 875.62' S= 0.0700 '/' Cc= 0.900 n= 0.011 Concrete pipe, straight & clean, Flow Area= 1.77 sf #2 Device 1 888.00'15.0" Vert. Orifice/Grate C= 0.600 Limited to weir flow at low heads #3 Secondary 890.75'20.0' long x 5.0' breadth Broad-Crested Rectangular Weir Head (feet) 0.20 0.40 0.60 0.80 1.00 1.20 1.40 1.60 1.80 2.00 2.50 3.00 3.50 4.00 4.50 5.00 5.50 Coef. (English) 2.34 2.50 2.70 2.68 2.68 2.66 2.65 2.65 2.65 2.65 2.67 2.66 2.68 2.70 2.74 2.79 2.88 #4 Device 1 887.17'0.450 in/hr Filtration over Surface area Phase-In= 0.01' Primary OutFlow Max=0.52 cfs @ 121.47 hrs HW=888.32' TW=877.14' (Dynamic Tailwater) 1=Culvert (Passes 0.52 cfs of 15.23 cfs potential flow) 2=Orifice/Grate (Orifice Controls 0.49 cfs @ 1.94 fps) 4=Filtration (Exfiltration Controls 0.03 cfs) Secondary OutFlow Max=0.00 cfs @ 0.00 hrs HW=887.17' TW=875.63' (Dynamic Tailwater) 3=Broad-Crested Rectangular Weir ( Controls 0.00 cfs) MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 285HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Pond 46P: Triangle Basin Inflow Outflow Primary Secondary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.55 0.5 0.45 0.4 0.35 0.3 0.25 0.2 0.15 0.1 0.05 0 Inflow Area=2.769 ac Peak Elev=888.32' Storage=2,681 cf 0.53 cfs 0.52 cfs 0.52 cfs 0.00 cfs MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 286HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Pond 47P: Bluff Creek - West Basin - 60" PIPE Inflow Area = 2.860 ac, 40.99% Impervious, Inflow Depth = 6.96" for 10 day snowmelt event Inflow = 0.55 cfs @ 121.28 hrs, Volume= 1.659 af Outflow = 0.49 cfs @ 122.03 hrs, Volume= 1.659 af, Atten= 11%, Lag= 45.0 min Primary = 0.49 cfs @ 122.03 hrs, Volume= 1.659 af Routed to Reach 48R : Developed Area To Wetland 4 Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 909.80' @ 122.03 hrs Surf.Area= 6,385 sf Storage= 6,507 cf Plug-Flow detention time= 204.3 min calculated for 1.659 af (100% of inflow) Center-of-Mass det. time= 204.3 min ( 7,589.1 - 7,384.8 ) Volume Invert Avail.Storage Storage Description #1A 908.00' 8,037 cf 56.09'W x 113.17'L x 6.08'H Field A 38,615 cf Overall - 18,524 cf Embedded = 20,091 cf x 40.0% Voids #2A 908.00' 15,598 cf ADS N-12 60" x 35 Inside #1 Inside= 59.5"W x 59.5"H => 19.30 sf x 20.00'L = 386.0 cf Outside= 67.0"W x 67.0"H => 22.92 sf x 20.00'L = 458.4 cf 35 Chambers in 7 Rows 54.09' Header x 19.30 sf x 2 = 2,087.7 cf Inside #3 908.00' 34,645 cf 4.00'D x 919.00'H Vertical Cone/Cylinder x 3 58,280 cf Total Available Storage Storage Group A created with Chamber Wizard Device Routing Invert Outlet Devices #1 Primary 905.20'15.0" Round Culvert L= 312.0' RCP, square edge headwall, Ke= 0.500 Inlet / Outlet Invert= 905.20' / 901.89' S= 0.0106 '/' Cc= 0.900 n= 0.013 Concrete pipe, straight & clean, Flow Area= 1.23 sf #2 Device 1 905.50'14.0" Round Culvert L= 20.0' CPP, square edge headwall, Ke= 0.500 Inlet / Outlet Invert= 905.50' / 905.20' S= 0.0150 '/' Cc= 0.900 n= 0.011 PVC, smooth interior, Flow Area= 1.07 sf #3 Device 2 909.50'12.0" Vert. Orifice - Overflow C= 0.600 Limited to weir flow at low heads #4 Device 2 906.00'8.0" Vert. Orifice - Underdrain C= 0.600 Limited to weir flow at low heads #5 Device 4 908.00'0.800 in/hr Filtration over Horizontal area Phase-In= 0.01' Primary OutFlow Max=0.49 cfs @ 122.03 hrs HW=909.80' TW=0.00' (Dynamic Tailwater) 1=Culvert (Passes 0.49 cfs of 8.58 cfs potential flow) 2=Culvert (Passes 0.49 cfs of 9.92 cfs potential flow) 3=Orifice - Overflow (Orifice Controls 0.37 cfs @ 1.87 fps) 4=Orifice - Underdrain (Passes 0.12 cfs of 3.13 cfs potential flow) 5=Filtration (Exfiltration Controls 0.12 cfs) MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 287HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Pond 47P: Bluff Creek - West Basin - 60" PIPE - Chamber Wizard Field A Chamber Model = ADS N-12 60" (ADS N-12® Pipe) Inside= 59.5"W x 59.5"H => 19.30 sf x 20.00'L = 386.0 cf Outside= 67.0"W x 67.0"H => 22.92 sf x 20.00'L = 458.4 cf 67.0" Wide + 30.0" Spacing = 97.0" C-C Row Spacing 5 Chambers/Row x 20.00' Long +5.58' Header x 2 = 111.17' Row Length +12.0" End Stone x 2 = 113.17' Base Length 7 Rows x 67.0" Wide + 30.0" Spacing x 6 + 12.0" Side Stone x 2 = 56.09' Base Width 67.0" Chamber Height + 6.0" Stone Cover = 6.08' Field Height 35 Chambers x 386.0 cf + 54.09' Header x 19.30 sf x 2 = 15,597.7 cf Chamber Storage 35 Chambers x 458.4 cf + 54.09' Header x 22.92 sf x 2 = 18,524.0 cf Displacement 38,615.4 cf Field - 18,524.0 cf Chambers = 20,091.4 cf Stone x 40.0% Voids = 8,036.6 cf Stone Storage Chamber Storage + Stone Storage = 23,634.3 cf = 0.543 af Overall Storage Efficiency = 61.2% Overall System Size = 113.17' x 56.09' x 6.08' 35 Chambers 1,430.2 cy Field 744.1 cy Stone MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 288HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Pond 47P: Bluff Creek - West Basin - 60" PIPE Inflow Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.6 0.55 0.5 0.45 0.4 0.35 0.3 0.25 0.2 0.15 0.1 0.05 0 Inflow Area=2.860 ac Peak Elev=909.80' Storage=6,507 cf 0.55 cfs 0.49 cfs MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 289HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Pond 48P: Bluff Creek - East Basin [44] Hint: Outlet device #2 is below defined storage Inflow Area = 7.828 ac, 28.98% Impervious, Inflow Depth = 6.96" for 10 day snowmelt event Inflow = 1.49 cfs @ 121.26 hrs, Volume= 4.541 af Outflow = 0.91 cfs @ 123.91 hrs, Volume= 4.541 af, Atten= 39%, Lag= 159.0 min Primary = 0.91 cfs @ 123.91 hrs, Volume= 4.541 af Routed to Pond 54P : South-East Temp Basin Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 897.71' @ 123.91 hrs Surf.Area= 41,961 sf Storage= 21,043 cf Plug-Flow detention time= (not calculated: outflow precedes inflow) Center-of-Mass det. time= 242.3 min ( 7,625.5 - 7,383.3 ) Volume Invert Avail.Storage Storage Description #1 897.20' 340,085 cf Open Pond (Prismatic) Listed below (Recalc) Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 897.20 40,540 0 0 904.00 59,485 340,085 340,085 Device Routing Invert Outlet Devices #1 Primary 895.35'12.0" Round Culvert L= 637.0' RCP, sq.cut end projecting, Ke= 0.500 Inlet / Outlet Invert= 895.35' / 888.98' S= 0.0100 '/' Cc= 0.900 n= 0.017 Concrete sewer w/manholes & inlets, Flow Area= 0.79 sf #2 Device 1 897.00'8.0" Round Temp Outlet Pipe L= 21.0' CPP, mitered to conform to fill, Ke= 0.700 Inlet / Outlet Invert= 897.00' / 895.35' S= 0.0786 '/' Cc= 0.900 n= 0.011 PVC, smooth interior, Flow Area= 0.35 sf Primary OutFlow Max=0.91 cfs @ 123.91 hrs HW=897.71' TW=881.23' (Dynamic Tailwater) 1=Culvert (Passes 0.91 cfs of 2.93 cfs potential flow) 2=Temp Outlet Pipe (Inlet Controls 0.91 cfs @ 2.61 fps) MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 290HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Pond 48P: Bluff Creek - East Basin Inflow Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)1 0 Inflow Area=7.828 ac Peak Elev=897.71' Storage=21,043 cf 1.49 cfs 0.91 cfs MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 291HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Pond 52P: South-Center Temp Basin Inflow Area = 8.180 ac, 9.42% Impervious, Inflow Depth = 6.96" for 10 day snowmelt event Inflow = 1.55 cfs @ 121.41 hrs, Volume= 4.745 af Outflow = 1.55 cfs @ 121.48 hrs, Volume= 4.745 af, Atten= 0%, Lag= 4.2 min Primary = 1.55 cfs @ 121.48 hrs, Volume= 4.745 af Routed to Pond 41.3P : South-West Temp Basin Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 903.49' @ 121.48 hrs Surf.Area= 1,524 sf Storage= 265 cf Plug-Flow detention time= 3.8 min calculated for 4.745 af (100% of inflow) Center-of-Mass det. time= 3.8 min ( 7,402.9 - 7,399.1 ) Volume Invert Avail.Storage Storage Description #1 903.14' 49,230 cf Custom Stage Data (Prismatic) Listed below (Recalc) Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 903.14 10 0 0 904.00 3,775 1,628 1,628 905.00 19,015 11,395 13,023 906.00 53,400 36,208 49,230 Device Routing Invert Outlet Devices #1 Primary 903.14'Custom Weir/Orifice, Cv= 2.62 (C= 3.28) Head (feet) 0.00 0.25 0.50 0.75 1.00 2.00 Width (feet) 0.10 4.20 6.25 8.30 12.50 12.50 Primary OutFlow Max=1.55 cfs @ 121.48 hrs HW=903.49' TW=877.14' (Dynamic Tailwater) 1=Custom Weir/Orifice (Weir Controls 1.55 cfs @ 1.58 fps) MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 292HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Pond 52P: South-Center Temp Basin Inflow Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)1 0 Inflow Area=8.180 ac Peak Elev=903.49' Storage=265 cf 1.55 cfs 1.55 cfs MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 293HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Pond 54P: South-East Temp Basin Inflow Area = 13.937 ac, 16.28% Impervious, Inflow Depth = 6.96" for 10 day snowmelt event Inflow = 2.00 cfs @ 121.60 hrs, Volume= 8.084 af Outflow = 1.23 cfs @ 128.22 hrs, Volume= 8.081 af, Atten= 38%, Lag= 397.1 min Primary = 1.23 cfs @ 128.22 hrs, Volume= 8.081 af Routed to Reach 42.2R : Southeast Secondary = 0.00 cfs @ 0.00 hrs, Volume= 0.000 af Routed to Reach 42.2R : Southeast Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 881.44' @ 128.22 hrs Surf.Area= 15,875 sf Storage= 33,180 cf Plug-Flow detention time= 310.7 min calculated for 8.081 af (100% of inflow) Center-of-Mass det. time= 308.5 min ( 7,836.0 - 7,527.6 ) Volume Invert Avail.Storage Storage Description #1 879.00' 121,861 cf Custom Stage Data (Prismatic) Listed below (Recalc) Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 879.00 11,945 0 0 881.00 14,583 26,528 26,528 883.00 20,500 35,083 61,611 884.00 100,000 60,250 121,861 Device Routing Invert Outlet Devices #1 Primary 874.38'18.0" Round Culvert L= 68.0' RCP, sq.cut end projecting, Ke= 0.500 Inlet / Outlet Invert= 874.38' / 874.05' S= 0.0049 '/' Cc= 0.900 n= 0.013 Concrete pipe, straight & clean, Flow Area= 1.77 sf #2 Device 1 879.00'6.0" Round Culvert L= 29.0' CPP, mitered to conform to fill, Ke= 0.700 Inlet / Outlet Invert= 879.00' / 878.71' S= 0.0100 '/' Cc= 0.900 n= 0.011 PVC, smooth interior, Flow Area= 0.20 sf #3 Secondary 883.85'25.0' long x 50.0' breadth Broad-Crested Rectangular Weir Head (feet) 0.20 0.40 0.60 0.80 1.00 1.20 1.40 1.60 Coef. (English) 2.68 2.70 2.70 2.64 2.63 2.64 2.64 2.63 Primary OutFlow Max=1.23 cfs @ 128.22 hrs HW=881.44' TW=0.00' (Dynamic Tailwater) 1=Culvert (Passes 1.23 cfs of 20.77 cfs potential flow) 2=Culvert (Inlet Controls 1.23 cfs @ 6.28 fps) Secondary OutFlow Max=0.00 cfs @ 0.00 hrs HW=879.00' TW=0.00' (Dynamic Tailwater) 3=Broad-Crested Rectangular Weir ( Controls 0.00 cfs) MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 294HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Pond 54P: South-East Temp Basin Inflow Outflow Primary Secondary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)2 1 0 Inflow Area=13.937 ac Peak Elev=881.44' Storage=33,180 cf 2.00 cfs 1.23 cfs 1.23 cfs 0.00 cfs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 295HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Time span=0.00-360.00 hrs, dt=0.01 hrs, 36001 points Runoff by SCS TR-20 method, UH=SCS, Weighted-CN Reach routing by Dyn-Stor-Ind method - Pond routing by Dyn-Stor-Ind method Runoff Area=19,930 sf 0.00% Impervious Runoff Depth=2.27"Subcatchment 13.1S: Front Yards - North Tc=5.0 min CN=80 Runoff=2.00 cfs 0.086 af Runoff Area=21,220 sf 0.00% Impervious Runoff Depth=2.27"Subcatchment 13.2S: Front Yards - South Tc=5.0 min CN=80 Runoff=2.13 cfs 0.092 af Runoff Area=5,069 sf 76.64% Impervious Runoff Depth=3.59"Subcatchment 16oS: East Offsite Tc=5.0 min CN=94 Runoff=0.76 cfs 0.035 af Runoff Area=283,295 sf 6.71% Impervious Runoff Depth=2.35"Subcatchment 21S: Northwest Flow Length=440' Tc=14.9 min CN=81 Runoff=19.09 cfs 1.274 af Runoff Area=10,548 sf 0.00% Impervious Runoff Depth=2.10"Subcatchment 22oS: From Lyman Flow Length=57' Slope=0.3330 '/' Tc=5.0 min CN=78 Runoff=0.98 cfs 0.042 af Runoff Area=41,685 sf 0.00% Impervious Runoff Depth=2.27"Subcatchment 22S: Direct to Wetland 6 Tc=5.0 min CN=80 Runoff=4.19 cfs 0.181 af Runoff Area=199,050 sf 58.96% Impervious Runoff Depth=3.28"Subcatchment 25S: West North Tc=10.0 min CN=91 Runoff=21.91 cfs 1.248 af Runoff Area=227,645 sf 28.54% Impervious Runoff Depth=2.70"Subcatchment 28S: Avienda Pkwy Tc=15.0 min CN=85 Runoff=17.45 cfs 1.176 af Runoff Area=5,467 sf 25.44% Impervious Runoff Depth=2.70"Subcatchment 29oS: North Offsite Tc=5.0 min CN=85 Runoff=0.65 cfs 0.028 af Runoff Area=38,150 sf 35.33% Impervious Runoff Depth=2.79"Subcatchment 31S: West Central Flow Length=345' Tc=13.2 min CN=86 Runoff=3.21 cfs 0.204 af Runoff Area=115,865 sf 17.26% Impervious Runoff Depth=2.35"Subcatchment 33oS: Offsite West - North Flow Length=431' Tc=7.3 min UI Adjusted CN=81 Runoff=10.65 cfs 0.521 af Runoff Area=74,385 sf 2.13% Impervious Runoff Depth=2.89"Subcatchment 33S: Direct to Wetland 3 Tc=12.0 min CN=87 Runoff=6.76 cfs 0.411 af Runoff Area=25,345 sf 22.45% Impervious Runoff Depth=2.61"Subcatchment 34dS: Offsite West Direct Tc=10.0 min CN=84 Runoff=2.28 cfs 0.127 af Runoff Area=32,845 sf 0.00% Impervious Runoff Depth=2.27"Subcatchment 34oS: Offsite to West South Tc=15.0 min CN=80 Runoff=2.11 cfs 0.142 af Runoff Area=105,570 sf 0.00% Impervious Runoff Depth=0.64"Subcatchment 34S: West Woods Flow Length=268' Tc=11.1 min CN=55 Runoff=1.48 cfs 0.130 af Runoff Area=165,040 sf 0.00% Impervious Runoff Depth=0.64"Subcatchment 35S: Southwest Flow Length=270' Tc=18.3 min CN=55 Runoff=1.88 cfs 0.202 af MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 296HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Runoff Area=1,628 sf 100.00% Impervious Runoff Depth=4.03"Subcatchment 36oS: Southwest Offsite Tc=5.0 min CN=98 Runoff=0.26 cfs 0.013 af Runoff Area=63,545 sf 52.82% Impervious Runoff Depth=3.18"Subcatchment 40.4S: So. Villas Private Flow Length=845' Tc=13.0 min CN=90 Runoff=6.06 cfs 0.386 af Runoff Area=157,310 sf 5.27% Impervious Runoff Depth=2.35"Subcatchment 41.3S: South-West Flow Length=285' Tc=8.9 min CN=81 Runoff=13.41 cfs 0.707 af Runoff Area=21,960 sf 0.00% Impervious Runoff Depth=2.27"Subcatchment 42.1S: South Fringe Tc=5.0 min CN=80 Runoff=2.20 cfs 0.095 af Runoff Area=8,870 sf 0.00% Impervious Runoff Depth=2.10"Subcatchment 42.2S: Southeast Fringe Tc=5.0 min CN=78 Runoff=0.83 cfs 0.036 af Runoff Area=140,400 sf 0.00% Impervious Runoff Depth=0.64"Subcatchment 43.1S: East Woods Flow Length=530' Tc=15.2 min CN=55 Runoff=1.73 cfs 0.172 af Runoff Area=76,080 sf 0.00% Impervious Runoff Depth=0.64"Subcatchment 43.2S: Northeast Woods Flow Length=623' Tc=19.5 min CN=55 Runoff=0.84 cfs 0.093 af Runoff Area=446,125 sf 0.00% Impervious Runoff Depth=0.64"Subcatchment 44S: North Woods Tc=20.0 min CN=55 Runoff=4.89 cfs 0.547 af Runoff Area=63,170 sf 0.00% Impervious Runoff Depth=2.27"Subcatchment 46S: Direct to Tri. Basin Flow Length=755' Tc=11.5 min CN=80 Runoff=4.63 cfs 0.274 af Runoff Area=57,455 sf 33.07% Impervious Runoff Depth=2.79"Subcatchment 46uS: Rear Yards of South Flow Length=755' Tc=11.5 min CN=86 Runoff=5.18 cfs 0.307 af Runoff Area=103,380 sf 49.41% Impervious Runoff Depth=3.08"Subcatchment 47S: Bluff Creek Pkwy - Tc=10.0 min CN=89 Runoff=10.82 cfs 0.609 af Runoff Area=168,700 sf 56.27% Impervious Runoff Depth=3.38"Subcatchment 48S: Bluff Creek Pkwy - Tc=10.0 min CN=92 Runoff=19.00 cfs 1.090 af Runoff Area=292,770 sf 0.00% Impervious Runoff Depth=2.27"Subcatchment 52S: South - Center Flow Length=660' Slope=0.0100 '/' Tc=27.0 min CN=80 Runoff=13.93 cfs 1.270 af Runoff Area=266,110 sf 0.00% Impervious Runoff Depth=2.27"Subcatchment 54S: South - East Flow Length=418' Tc=27.7 min CN=80 Runoff=12.49 cfs 1.154 af Runoff Area=167,215 sf 0.00% Impervious Runoff Depth=2.27"Subcatchment 55S: Direct to Bluff Creek - Tc=5.0 min CN=80 Runoff=16.79 cfs 0.725 af Inflow=6.97 cfs 3.630 afReach 20R: Northwest Drainage Outflow=6.97 cfs 3.630 af Avg. Flow Depth=0.47' Max Vel=0.83 fps Inflow=6.98 cfs 3.630 afReach 21R: Wetland 6 Lower Reach n=0.050 L=187.0' S=0.0053 '/' Capacity=3,072.14 cfs Outflow=6.97 cfs 3.630 af MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 297HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Inflow=7.31 cfs 1.749 afReach 30R: West Drainage Outflow=7.31 cfs 1.749 af Inflow=3.16 cfs 0.329 afReach 35R: Direct Runoff Outflow=3.16 cfs 0.329 af Inflow=23.74 cfs 7.590 afReach 40R: South Drainage Outflow=23.74 cfs 7.590 af Inflow=3.46 cfs 3.134 afReach 42.2R: Southeast Outflow=3.46 cfs 3.134 af Inflow=21.28 cfs 4.283 afReach 44R: Southwest Outflow=21.28 cfs 4.283 af Avg. Flow Depth=0.32' Max Vel=4.07 fps Inflow=5.18 cfs 0.307 afReach 46uR: South Swale - at East n=0.025 L=34.0' S=0.0294 '/' Capacity=11.72 cfs Outflow=5.17 cfs 0.307 af Inflow=4.07 cfs 0.701 afReach 48R: Developed Area To Wetland 4 Outflow=4.07 cfs 0.701 af Inflow=34.37 cfs 12.969 afReach 50R: Bluff Creek Drainage Outflow=34.37 cfs 12.969 af Peak Elev=894.46' Storage=62,439 cf Inflow=28.91 cfs 3.812 afPond 21P: Northwest Basin w Filtration Primary=6.67 cfs 3.407 af Secondary=0.00 cfs 0.000 af Outflow=6.67 cfs 3.407 af Peak Elev=917.60' Storage=19,198 cf Inflow=21.91 cfs 1.248 afPond 25P: West-North w Filtration Outflow=9.56 cfs 1.248 af Peak Elev=913.52' Storage=32,842 cf Inflow=18.53 cfs 1.291 afPond 28P: Avienda Pkwy Surface Basin Outflow=2.32 cfs 1.291 af Peak Elev=924.97' Storage=5,814 cf Inflow=3.21 cfs 0.204 afPond 31P: West-Central Surface Basin w Outflow=0.12 cfs 0.204 af Peak Elev=921.41' Storage=21,773 cf Inflow=16.64 cfs 1.135 afPond 33P: Wetland 3 Primary=2.16 cfs 1.135 af Secondary=0.00 cfs 0.000 af Outflow=2.16 cfs 1.135 af Peak Elev=908.15' Storage=0.038 af Inflow=5.18 cfs 1.407 afPond 34P: West - South (existing) Outflow=4.33 cfs 1.407 af Peak Elev=878.55' Storage=49,504 cf Inflow=28.42 cfs 2.944 afPond 41.3P: South-West Temp Basin Primary=2.70 cfs 1.652 af Secondary=11.08 cfs 1.291 af Outflow=13.79 cfs 2.943 af Peak Elev=884.44' Storage=594 cf Inflow=8.95 cfs 1.248 afPond 44P: Wetland 4 Outflow=8.94 cfs 1.247 af Peak Elev=889.49' Storage=7,107 cf Inflow=9.80 cfs 0.581 afPond 46P: Triangle Basin Primary=5.54 cfs 0.581 af Secondary=0.00 cfs 0.000 af Outflow=5.54 cfs 0.581 af MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 298HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Peak Elev=911.09' Storage=12,742 cf Inflow=12.33 cfs 0.701 afPond 47P: Bluff Creek - West Basin - 60" Outflow=4.07 cfs 0.701 af Peak Elev=898.46' Storage=53,268 cf Inflow=33.64 cfs 1.850 afPond 48P: Bluff Creek - East Basin Outflow=1.57 cfs 1.850 af Peak Elev=904.14' Storage=2,322 cf Inflow=17.29 cfs 1.656 afPond 52P: South-Center Temp Basin Outflow=17.04 cfs 1.656 af Peak Elev=882.51' Storage=52,004 cf Inflow=13.91 cfs 3.004 afPond 54P: South-East Temp Basin Primary=1.51 cfs 3.003 af Secondary=0.00 cfs 0.000 af Outflow=1.51 cfs 3.003 af Total Runoff Area = 78.187 ac Runoff Volume = 13.377 af Average Runoff Depth = 2.05" 86.61% Pervious = 67.722 ac 13.39% Impervious = 10.465 ac MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 299HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 13.1S: Front Yards - North Rowhomes Runoff = 2.00 cfs @ 12.08 hrs, Volume= 0.086 af, Depth= 2.27" Routed to Pond 28P : Avienda Pkwy Surface Basin NOT UPDATED Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Area (sf) CN Description 19,930 80 >75% Grass cover, Good, HSG D 19,930 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 5.0 Direct Entry, Subcatchment 13.1S: Front Yards - North Rowhomes Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)2 1 0 MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Runoff Area=19,930 sf Runoff Volume=0.086 af Runoff Depth=2.27" Tc=5.0 min CN=80 2.00 cfs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 300HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 13.2S: Front Yards - South Rowhomes Runoff = 2.13 cfs @ 12.08 hrs, Volume= 0.092 af, Depth= 2.27" Routed to Pond 47P : Bluff Creek - West Basin - 60" PIPE Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Area (sf) CN Description 21,220 80 >75% Grass cover, Good, HSG D 21,220 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 5.0 Direct Entry, Subcatchment 13.2S: Front Yards - South Rowhomes Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)2 1 0 MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Runoff Area=21,220 sf Runoff Volume=0.092 af Runoff Depth=2.27" Tc=5.0 min CN=80 2.13 cfs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 301HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 16oS: East Offsite Runoff = 0.76 cfs @ 12.07 hrs, Volume= 0.035 af, Depth= 3.59" Routed to Pond 48P : Bluff Creek - East Basin Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Area (sf) CN Description 1,184 80 >75% Grass cover, Good, HSG D 3,885 98 Paved parking, HSG D 5,069 94 Weighted Average 1,184 23.36% Pervious Area 3,885 76.64% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 5.0 Direct Entry, Subcatchment 16oS: East Offsite Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.8 0.75 0.7 0.65 0.6 0.55 0.5 0.45 0.4 0.35 0.3 0.25 0.2 0.15 0.1 0.05 0 MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Runoff Area=5,069 sf Runoff Volume=0.035 af Runoff Depth=3.59" Tc=5.0 min CN=94 0.76 cfs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 302HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 21S: Northwest Runoff = 19.09 cfs @ 12.20 hrs, Volume= 1.274 af, Depth= 2.35" Routed to Pond 21P : Northwest Basin w Filtration Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Area (sf) CN Description 264,275 80 >75% Grass cover, Good, HSG D 19,020 98 Unconnected roofs, HSG D 283,295 81 Weighted Average 264,275 93.29% Pervious Area 19,020 6.71% Impervious Area 19,020 100.00% Unconnected Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 10.3 100 0.0200 0.16 Sheet Flow, Grass: Short n= 0.150 P2= 2.87" 3.7 190 0.0150 0.86 Shallow Concentrated Flow, Short Grass Pasture Kv= 7.0 fps 0.9 150 0.1470 2.68 Shallow Concentrated Flow, Short Grass Pasture Kv= 7.0 fps 14.9 440 Total Subcatchment 21S: Northwest Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Runoff Area=283,295 sf Runoff Volume=1.274 af Runoff Depth=2.35" Flow Length=440' Tc=14.9 min CN=81 19.09 cfs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 303HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 22oS: From Lyman Runoff = 0.98 cfs @ 12.08 hrs, Volume= 0.042 af, Depth= 2.10" Routed to Reach 21R : Wetland 6 Lower Reach Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Area (sf) CN Description 10,548 78 Meadow, non-grazed, HSG D 10,548 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 2.1 57 0.3330 0.44 Sheet Flow, Grass: Short n= 0.150 P2= 2.87" 2.9 Direct Entry, Make up to 5 minutes 5.0 57 Total Subcatchment 22oS: From Lyman Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)1 0 MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Runoff Area=10,548 sf Runoff Volume=0.042 af Runoff Depth=2.10" Flow Length=57' Slope=0.3330 '/' Tc=5.0 min CN=78 0.98 cfs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 304HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 22S: Direct to Wetland 6 Runoff = 4.19 cfs @ 12.08 hrs, Volume= 0.181 af, Depth= 2.27" Routed to Reach 21R : Wetland 6 Lower Reach Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Area (sf) CN Description 41,685 80 >75% Grass cover, Good, HSG D 41,685 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 5.0 Direct Entry, Subcatchment 22S: Direct to Wetland 6 Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)4 3 2 1 0 MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Runoff Area=41,685 sf Runoff Volume=0.181 af Runoff Depth=2.27" Tc=5.0 min CN=80 4.19 cfs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 305HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 25S: West North Runoff = 21.91 cfs @ 12.13 hrs, Volume= 1.248 af, Depth= 3.28" Routed to Pond 25P : West-North w Filtration Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Area (sf) CN Description 81,685 80 >75% Grass cover, Good, HSG D 99,930 98 Paved parking, HSG D 17,435 98 Unconnected roofs, HSG D 199,050 91 Weighted Average 81,685 41.04% Pervious Area 117,365 58.96% Impervious Area 17,435 14.86% Unconnected Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 10.0 Direct Entry, Subcatchment 25S: West North Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Runoff Area=199,050 sf Runoff Volume=1.248 af Runoff Depth=3.28" Tc=10.0 min CN=91 21.91 cfs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 306HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 28S: Avienda Pkwy Runoff = 17.45 cfs @ 12.20 hrs, Volume= 1.176 af, Depth= 2.70" Routed to Pond 28P : Avienda Pkwy Surface Basin NOT UPDATED Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Area (sf) CN Description 162,665 80 >75% Grass cover, Good, HSG D 64,980 98 Paved roads w/curbs & sewers, HSG D 227,645 85 Weighted Average 162,665 71.46% Pervious Area 64,980 28.54% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 15.0 Direct Entry, Subcatchment 28S: Avienda Pkwy Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Runoff Area=227,645 sf Runoff Volume=1.176 af Runoff Depth=2.70" Tc=15.0 min CN=85 17.45 cfs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 307HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 29oS: North Offsite Runoff = 0.65 cfs @ 12.07 hrs, Volume= 0.028 af, Depth= 2.70" Routed to Pond 28P : Avienda Pkwy Surface Basin NOT UPDATED Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Area (sf) CN Description 4,076 80 >75% Grass cover, Good, HSG D 1,391 98 Paved parking, HSG D 5,467 85 Weighted Average 4,076 74.56% Pervious Area 1,391 25.44% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 5.0 Direct Entry, Subcatchment 29oS: North Offsite Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.7 0.65 0.6 0.55 0.5 0.45 0.4 0.35 0.3 0.25 0.2 0.15 0.1 0.05 0 MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Runoff Area=5,467 sf Runoff Volume=0.028 af Runoff Depth=2.70" Tc=5.0 min CN=85 0.65 cfs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 308HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 31S: West Central Runoff = 3.21 cfs @ 12.18 hrs, Volume= 0.204 af, Depth= 2.79" Routed to Pond 31P : West-Central Surface Basin w Filtration Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Area (sf) CN Description 24,670 80 >75% Grass cover, Good, HSG D 9,870 98 Unconnected roofs, HSG D * 3,610 98 Connected roofs, HSG D 38,150 86 Weighted Average 24,670 64.67% Pervious Area 13,480 35.33% Impervious Area 9,870 73.22% Unconnected Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 10.3 100 0.0200 0.16 Sheet Flow, Grass: Short n= 0.150 P2= 2.87" 2.9 245 0.0410 1.42 Shallow Concentrated Flow, Short Grass Pasture Kv= 7.0 fps 13.2 345 Total Subcatchment 31S: West Central Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)3 2 1 0 MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Runoff Area=38,150 sf Runoff Volume=0.204 af Runoff Depth=2.79" Flow Length=345' Tc=13.2 min CN=86 3.21 cfs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 309HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 33oS: Offsite West - North Runoff = 10.65 cfs @ 12.10 hrs, Volume= 0.521 af, Depth= 2.35" Routed to Pond 33P : Wetland 3 Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Area (sf) CN Adj Description 20,000 98 Unconnected roofs, HSG D 71,000 80 >75% Grass cover, Good, HSG D * 12,720 96 Wetland, Good, HSG D 12,145 58 Meadow, non-grazed, HSG B 115,865 83 81 Weighted Average, UI Adjusted 95,865 82.74% Pervious Area 20,000 17.26% Impervious Area 20,000 100.00% Unconnected Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 5.0 25 0.0200 0.08 Sheet Flow, Grass: Dense n= 0.240 P2= 2.87" 2.3 406 0.0390 2.96 Shallow Concentrated Flow, Grassed Waterway Kv= 15.0 fps 7.3 431 Total Subcatchment 33oS: Offsite West - North Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)11 10 9 8 7 6 5 4 3 2 1 0 MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Runoff Area=115,865 sf Runoff Volume=0.521 af Runoff Depth=2.35" Flow Length=431' Tc=7.3 min UI Adjusted CN=81 10.65 cfs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 310HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 33S: Direct to Wetland 3 Runoff = 6.76 cfs @ 12.16 hrs, Volume= 0.411 af, Depth= 2.89" Routed to Pond 33P : Wetland 3 Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Area (sf) CN Description * 29,365 96 Wetland, Good, HSG D 43,435 80 >75% Grass cover, Good, HSG D 1,585 98 Unconnected roofs, HSG D 74,385 87 Weighted Average 72,800 97.87% Pervious Area 1,585 2.13% Impervious Area 1,585 100.00% Unconnected Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 12.0 Direct Entry, Subcatchment 33S: Direct to Wetland 3 Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)7 6 5 4 3 2 1 0 MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Runoff Area=74,385 sf Runoff Volume=0.411 af Runoff Depth=2.89" Tc=12.0 min CN=87 6.76 cfs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 311HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 34dS: Offsite West Direct Runoff = 2.28 cfs @ 12.14 hrs, Volume= 0.127 af, Depth= 2.61" Routed to Reach 35R : Direct Runoff Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Area (sf) CN Description 19,655 80 >75% Grass cover, Good, HSG D 5,690 98 Paved roads w/curbs & sewers, HSG D 25,345 84 Weighted Average 19,655 77.55% Pervious Area 5,690 22.45% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 10.0 Direct Entry, Subcatchment 34dS: Offsite West Direct Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)2 1 0 MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Runoff Area=25,345 sf Runoff Volume=0.127 af Runoff Depth=2.61" Tc=10.0 min CN=84 2.28 cfs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 312HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 34oS: Offsite to West South Runoff = 2.11 cfs @ 12.21 hrs, Volume= 0.142 af, Depth= 2.27" Routed to Pond 34P : West - South (existing) Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Area (sf) CN Description 32,845 80 >75% Grass cover, Good, HSG D 32,845 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 15.0 Direct Entry, Subcatchment 34oS: Offsite to West South Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)2 1 0 MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Runoff Area=32,845 sf Runoff Volume=0.142 af Runoff Depth=2.27" Tc=15.0 min CN=80 2.11 cfs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 313HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 34S: West Woods Runoff = 1.48 cfs @ 12.20 hrs, Volume= 0.130 af, Depth= 0.64" Routed to Pond 34P : West - South (existing) Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Area (sf) CN Description 105,570 55 Woods, Good, HSG B 105,570 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 8.4 50 0.0600 0.10 Sheet Flow, Woods: Light underbrush n= 0.400 P2= 2.87" 2.7 218 0.0710 1.33 Shallow Concentrated Flow, Woodland Kv= 5.0 fps 11.1 268 Total Subcatchment 34S: West Woods Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)1 0 MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Runoff Area=105,570 sf Runoff Volume=0.130 af Runoff Depth=0.64" Flow Length=268' Tc=11.1 min CN=55 1.48 cfs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 314HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 35S: Southwest Runoff = 1.88 cfs @ 12.33 hrs, Volume= 0.202 af, Depth= 0.64" Routed to Reach 35R : Direct Runoff Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Area (sf) CN Description 165,040 55 Woods, Good, HSG B 165,040 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 16.0 75 0.0270 0.08 Sheet Flow, Woods: Light underbrush n= 0.400 P2= 2.87" 2.3 195 0.0820 1.43 Shallow Concentrated Flow, Woodland Kv= 5.0 fps 18.3 270 Total Subcatchment 35S: Southwest Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)2 1 0 MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Runoff Area=165,040 sf Runoff Volume=0.202 af Runoff Depth=0.64" Flow Length=270' Tc=18.3 min CN=55 1.88 cfs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 315HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 36oS: Southwest Offsite Runoff = 0.26 cfs @ 12.07 hrs, Volume= 0.013 af, Depth= 4.03" Routed to Reach 30R : West Drainage Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Area (sf) CN Description 1,628 98 Paved parking, HSG D 1,628 100.00% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 5.0 Direct Entry, Subcatchment 36oS: Southwest Offsite Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.28 0.26 0.24 0.22 0.2 0.18 0.16 0.14 0.12 0.1 0.08 0.06 0.04 0.02 0 MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Runoff Area=1,628 sf Runoff Volume=0.013 af Runoff Depth=4.03" Tc=5.0 min CN=98 0.26 cfs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 316HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 40.4S: So. Villas Private Drive Runoff = 6.06 cfs @ 12.17 hrs, Volume= 0.386 af, Depth= 3.18" Routed to Pond 52P : South-Center Temp Basin Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Area (sf) CN Description 29,980 80 >75% Grass cover, Good, HSG D 33,565 98 Paved parking, HSG D 63,545 90 Weighted Average 29,980 47.18% Pervious Area 33,565 52.82% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 8.3 70 0.0430 0.14 Sheet Flow, Lawn Grass: Dense n= 0.240 P2= 2.87" 4.7 775 0.0180 2.72 Shallow Concentrated Flow, Street Flow Paved Kv= 20.3 fps 13.0 845 Total Subcatchment 40.4S: So. Villas Private Drive Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)6 5 4 3 2 1 0 MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Runoff Area=63,545 sf Runoff Volume=0.386 af Runoff Depth=3.18" Flow Length=845' Tc=13.0 min CN=90 6.06 cfs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 317HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 41.3S: South-West Runoff = 13.41 cfs @ 12.12 hrs, Volume= 0.707 af, Depth= 2.35" Routed to Pond 41.3P : South-West Temp Basin Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Area (sf) CN Description 149,020 80 >75% Grass cover, Good, HSG D * 8,290 100 Water 157,310 81 Weighted Average 149,020 94.73% Pervious Area 8,290 5.27% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 7.5 100 0.0450 0.22 Sheet Flow, Grass: Short n= 0.150 P2= 2.87" 1.0 90 0.0450 1.48 Shallow Concentrated Flow, Short Grass Pasture Kv= 7.0 fps 0.4 95 0.3333 4.04 Shallow Concentrated Flow, Short Grass Pasture Kv= 7.0 fps 8.9 285 Total Subcatchment 41.3S: South-West Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Runoff Area=157,310 sf Runoff Volume=0.707 af Runoff Depth=2.35" Flow Length=285' Tc=8.9 min CN=81 13.41 cfs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 318HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 42.1S: South Fringe Runoff = 2.20 cfs @ 12.08 hrs, Volume= 0.095 af, Depth= 2.27" Routed to Reach 42.2R : Southeast Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Area (sf) CN Description 21,960 80 >75% Grass cover, Good, HSG D 21,960 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 5.0 Direct Entry, Subcatchment 42.1S: South Fringe Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)2 1 0 MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Runoff Area=21,960 sf Runoff Volume=0.095 af Runoff Depth=2.27" Tc=5.0 min CN=80 2.20 cfs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 319HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 42.2S: Southeast Fringe Runoff = 0.83 cfs @ 12.08 hrs, Volume= 0.036 af, Depth= 2.10" Routed to Reach 42.2R : Southeast Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Area (sf) CN Description 8,870 78 Meadow, non-grazed, HSG D 8,870 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 5.0 Direct Entry, Subcatchment 42.2S: Southeast Fringe Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.9 0.85 0.8 0.75 0.7 0.65 0.6 0.55 0.5 0.45 0.4 0.35 0.3 0.25 0.2 0.15 0.1 0.05 0 MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Runoff Area=8,870 sf Runoff Volume=0.036 af Runoff Depth=2.10" Tc=5.0 min CN=78 0.83 cfs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 320HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 43.1S: East Woods Runoff = 1.73 cfs @ 12.27 hrs, Volume= 0.172 af, Depth= 0.64" Routed to Reach 40R : South Drainage Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Area (sf) CN Description 140,400 55 Woods, Good, HSG B 140,400 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 11.1 75 0.0670 0.11 Sheet Flow, Woods: Light underbrush n= 0.400 P2= 2.87" 4.1 455 0.1380 1.86 Shallow Concentrated Flow, Woodland Kv= 5.0 fps 15.2 530 Total Subcatchment 43.1S: East Woods Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)1 0 MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Runoff Area=140,400 sf Runoff Volume=0.172 af Runoff Depth=0.64" Flow Length=530' Tc=15.2 min CN=55 1.73 cfs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 321HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 43.2S: Northeast Woods Runoff = 0.84 cfs @ 12.35 hrs, Volume= 0.093 af, Depth= 0.64" Routed to Reach 44R : Southwest Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Area (sf) CN Description 76,080 55 Woods, Good, HSG B 76,080 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 14.2 100 0.0650 0.12 Sheet Flow, Woods: Light underbrush n= 0.400 P2= 2.87" 5.3 523 0.1080 1.64 Shallow Concentrated Flow, Woodland Kv= 5.0 fps 19.5 623 Total Subcatchment 43.2S: Northeast Woods Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.9 0.85 0.8 0.75 0.7 0.65 0.6 0.55 0.5 0.45 0.4 0.35 0.3 0.25 0.2 0.15 0.1 0.05 0 MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Runoff Area=76,080 sf Runoff Volume=0.093 af Runoff Depth=0.64" Flow Length=623' Tc=19.5 min CN=55 0.84 cfs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 322HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 44S: North Woods Runoff = 4.89 cfs @ 12.36 hrs, Volume= 0.547 af, Depth= 0.64" Routed to Pond 44P : Wetland 4 Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Area (sf) CN Description 446,125 55 Woods, Good, HSG B 446,125 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 20.0 Direct Entry, Subcatchment 44S: North Woods Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)5 4 3 2 1 0 MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Runoff Area=446,125 sf Runoff Volume=0.547 af Runoff Depth=0.64" Tc=20.0 min CN=55 4.89 cfs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 323HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 46S: Direct to Tri. Basin Runoff = 4.63 cfs @ 12.16 hrs, Volume= 0.274 af, Depth= 2.27" Routed to Pond 46P : Triangle Basin Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Area (sf) CN Description 63,170 80 >75% Grass cover, Good, HSG D 63,170 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 3.4 40 0.0500 0.19 Sheet Flow, Grass: Short n= 0.150 P2= 2.87" 8.1 715 0.0440 1.47 Shallow Concentrated Flow, Short Grass Pasture Kv= 7.0 fps 11.5 755 Total Subcatchment 46S: Direct to Tri. Basin Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)5 4 3 2 1 0 MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Runoff Area=63,170 sf Runoff Volume=0.274 af Runoff Depth=2.27" Flow Length=755' Tc=11.5 min CN=80 4.63 cfs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 324HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 46uS: Rear Yards of South Townhomes Runoff = 5.18 cfs @ 12.15 hrs, Volume= 0.307 af, Depth= 2.79" Routed to Reach 46uR : South Swale - at East Property Line of THs Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Area (sf) CN Description 38,455 80 >75% Grass cover, Good, HSG D 19,000 98 Unconnected roofs, HSG D 57,455 86 Weighted Average 38,455 66.93% Pervious Area 19,000 33.07% Impervious Area 19,000 100.00% Unconnected Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 3.4 40 0.0500 0.19 Sheet Flow, Grass: Short n= 0.150 P2= 2.87" 8.1 715 0.0440 1.47 Shallow Concentrated Flow, Short Grass Pasture Kv= 7.0 fps 11.5 755 Total Subcatchment 46uS: Rear Yards of South Townhomes Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)5 4 3 2 1 0 MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Runoff Area=57,455 sf Runoff Volume=0.307 af Runoff Depth=2.79" Flow Length=755' Tc=11.5 min CN=86 5.18 cfs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 325HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 47S: Bluff Creek Pkwy - West Runoff = 10.82 cfs @ 12.13 hrs, Volume= 0.609 af, Depth= 3.08" Routed to Pond 47P : Bluff Creek - West Basin - 60" PIPE Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Area (sf) CN Description * 52,305 80 >75% Grass cover, Good, HSG D 51,075 98 Paved roads w/curbs & sewers, HSG D 103,380 89 Weighted Average 52,305 50.59% Pervious Area 51,075 49.41% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 10.0 Direct Entry, Subcatchment 47S: Bluff Creek Pkwy - West Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)12 11 10 9 8 7 6 5 4 3 2 1 0 MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Runoff Area=103,380 sf Runoff Volume=0.609 af Runoff Depth=3.08" Tc=10.0 min CN=89 10.82 cfs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 326HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 48S: Bluff Creek Pkwy - East Runoff = 19.00 cfs @ 12.13 hrs, Volume= 1.090 af, Depth= 3.38" Routed to Pond 48P : Bluff Creek - East Basin Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Area (sf) CN Description * 73,780 84 >75% Grass cover, Good, HSG D 94,920 98 Paved roads w/curbs & sewers, HSG D 168,700 92 Weighted Average 73,780 43.73% Pervious Area 94,920 56.27% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 10.0 Direct Entry, Subcatchment 48S: Bluff Creek Pkwy - East Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Runoff Area=168,700 sf Runoff Volume=1.090 af Runoff Depth=3.38" Tc=10.0 min CN=92 19.00 cfs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 327HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 52S: South - Center Runoff = 13.93 cfs @ 12.38 hrs, Volume= 1.270 af, Depth= 2.27" Routed to Pond 52P : South-Center Temp Basin Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Area (sf) CN Description 292,770 80 >75% Grass cover, Good, HSG D 292,770 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 13.7 100 0.0100 0.12 Sheet Flow, Grass: Short n= 0.150 P2= 2.87" 13.3 560 0.0100 0.70 Shallow Concentrated Flow, Short Grass Pasture Kv= 7.0 fps 27.0 660 Total Subcatchment 52S: South - Center Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Runoff Area=292,770 sf Runoff Volume=1.270 af Runoff Depth=2.27" Flow Length=660' Slope=0.0100 '/' Tc=27.0 min CN=80 13.93 cfs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 328HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 54S: South - East Runoff = 12.49 cfs @ 12.38 hrs, Volume= 1.154 af, Depth= 2.27" Routed to Pond 54P : South-East Temp Basin Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Area (sf) CN Description 266,110 80 >75% Grass cover, Good, HSG D 266,110 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 14.3 168 0.0250 0.20 Sheet Flow, Grass: Short n= 0.150 P2= 2.87" 8.4 250 0.0050 0.49 Shallow Concentrated Flow, Short Grass Pasture Kv= 7.0 fps 5.0 Direct Entry, Pipe flow 27.7 418 Total Subcatchment 54S: South - East Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)13 12 11 10 9 8 7 6 5 4 3 2 1 0 MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Runoff Area=266,110 sf Runoff Volume=1.154 af Runoff Depth=2.27" Flow Length=418' Tc=27.7 min CN=80 12.49 cfs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 329HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 55S: Direct to Bluff Creek - East Basin Runoff = 16.79 cfs @ 12.08 hrs, Volume= 0.725 af, Depth= 2.27" Routed to Pond 48P : Bluff Creek - East Basin Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Area (sf) CN Description 167,215 80 >75% Grass cover, Good, HSG D 167,215 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 5.0 Direct Entry, Subcatchment 55S: Direct to Bluff Creek - East Basin Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Runoff Area=167,215 sf Runoff Volume=0.725 af Runoff Depth=2.27" Tc=5.0 min CN=80 16.79 cfs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 330HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Reach 20R: Northwest Drainage [40] Hint: Not Described (Outflow=Inflow) Inflow Area = 18.081 ac, 25.74% Impervious, Inflow Depth = 2.41" for 10y 24hr event Inflow = 6.97 cfs @ 13.39 hrs, Volume= 3.630 af Outflow = 6.97 cfs @ 13.39 hrs, Volume= 3.630 af, Atten= 0%, Lag= 0.0 min Routed to Reach 50R : Bluff Creek Drainage Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Reach 20R: Northwest Drainage Inflow Outflow Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)7 6 5 4 3 2 1 0 Inflow Area=18.081 ac 6.97 cfs 6.97 cfs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 331HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Reach 21R: Wetland 6 Lower Reach Inflow Area = 18.081 ac, 25.74% Impervious, Inflow Depth = 2.41" for 10y 24hr event Inflow = 6.98 cfs @ 13.34 hrs, Volume= 3.630 af Outflow = 6.97 cfs @ 13.39 hrs, Volume= 3.630 af, Atten= 0%, Lag= 3.1 min Routed to Reach 20R : Northwest Drainage Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Max. Velocity= 0.83 fps, Min. Travel Time= 3.8 min Avg. Velocity = 0.24 fps, Avg. Travel Time= 13.2 min Peak Storage= 1,570 cf @ 13.39 hrs Average Depth at Peak Storage= 0.47' , Surface Width= 35.56' Bank-Full Depth= 5.99' Flow Area= 570.1 sf, Capacity= 3,072.14 cfs Custom cross-section, Length= 187.0' Slope= 0.0053 '/' (102 Elevation Intervals) Constant n= 0.050 Scattered brush, heavy weeds Inlet Invert= 885.00', Outlet Invert= 884.00' ‡ Offset Elevation Chan.Depth (feet) (feet) (feet) 0.00 890.40 0.00 43.10 886.55 3.85 85.60 884.41 5.99 126.20 885.14 5.26 145.10 890.40 0.00 Depth End Area Perim. Width Storage Discharge (feet) (sq-ft) (feet) (feet) (cubic-feet) (cfs) 0.00 0.0 0.0 0.0 0 0.00 0.73 20.1 55.1 55.1 3,761 22.32 2.14 121.1 88.4 88.2 22,648 324.64 5.99 570.1 146.1 145.1 106,618 3,072.14 MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 332HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Reach 21R: Wetland 6 Lower Reach Inflow Outflow Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)7 6 5 4 3 2 1 0 Inflow Area=18.081 ac Avg. Flow Depth=0.47' Max Vel=0.83 fps n=0.050 L=187.0' S=0.0053 '/' Capacity=3,072.14 cfs 6.98 cfs 6.97 cfs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 333HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Reach 30R: West Drainage [40] Hint: Not Described (Outflow=Inflow) Inflow Area = 12.829 ac, 7.58% Impervious, Inflow Depth = 1.64" for 10y 24hr event Inflow = 7.31 cfs @ 12.30 hrs, Volume= 1.749 af Outflow = 7.31 cfs @ 12.30 hrs, Volume= 1.749 af, Atten= 0%, Lag= 0.0 min Routed to Reach 50R : Bluff Creek Drainage Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Reach 30R: West Drainage Inflow Outflow Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)8 7 6 5 4 3 2 1 0 Inflow Area=12.829 ac 7.31 cfs 7.31 cfs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 334HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Reach 35R: Direct Runoff [40] Hint: Not Described (Outflow=Inflow) Inflow Area = 4.371 ac, 2.99% Impervious, Inflow Depth = 0.90" for 10y 24hr event Inflow = 3.16 cfs @ 12.20 hrs, Volume= 0.329 af Outflow = 3.16 cfs @ 12.20 hrs, Volume= 0.329 af, Atten= 0%, Lag= 0.0 min Routed to Reach 30R : West Drainage Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Reach 35R: Direct Runoff Inflow Outflow Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)3 2 1 0 Inflow Area=4.371 ac 3.16 cfs 3.16 cfs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 335HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Reach 40R: South Drainage [40] Hint: Not Described (Outflow=Inflow) Inflow Area = 47.277 ac, 10.23% Impervious, Inflow Depth = 1.93" for 10y 24hr event Inflow = 23.74 cfs @ 12.57 hrs, Volume= 7.590 af Outflow = 23.74 cfs @ 12.57 hrs, Volume= 7.590 af, Atten= 0%, Lag= 0.0 min Routed to Reach 50R : Bluff Creek Drainage Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Reach 40R: South Drainage Inflow Outflow Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)26 24 22 20 18 16 14 12 10 8 6 4 2 0 Inflow Area=47.277 ac 23.74 cfs 23.74 cfs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 336HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Reach 42.2R: Southeast [40] Hint: Not Described (Outflow=Inflow) Inflow Area = 14.645 ac, 15.49% Impervious, Inflow Depth = 2.57" for 10y 24hr event Inflow = 3.46 cfs @ 12.08 hrs, Volume= 3.134 af Outflow = 3.46 cfs @ 12.08 hrs, Volume= 3.134 af, Atten= 0%, Lag= 0.0 min Routed to Reach 40R : South Drainage Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Reach 42.2R: Southeast Inflow Outflow Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)3 2 1 0 Inflow Area=14.645 ac 3.46 cfs 3.46 cfs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 337HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Reach 44R: Southwest [40] Hint: Not Described (Outflow=Inflow) Inflow Area = 29.409 ac, 8.74% Impervious, Inflow Depth = 1.75" for 10y 24hr event Inflow = 21.28 cfs @ 12.61 hrs, Volume= 4.283 af Outflow = 21.28 cfs @ 12.61 hrs, Volume= 4.283 af, Atten= 0%, Lag= 0.0 min Routed to Reach 40R : South Drainage Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Reach 44R: Southwest Inflow Outflow Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 Inflow Area=29.409 ac 21.28 cfs 21.28 cfs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 338HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Reach 46uR: South Swale - at East Property Line of THs Inflow Area = 1.319 ac, 33.07% Impervious, Inflow Depth = 2.79" for 10y 24hr event Inflow = 5.18 cfs @ 12.15 hrs, Volume= 0.307 af Outflow = 5.17 cfs @ 12.16 hrs, Volume= 0.307 af, Atten= 0%, Lag= 0.1 min Routed to Pond 46P : Triangle Basin Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Max. Velocity= 4.07 fps, Min. Travel Time= 0.1 min Avg. Velocity = 1.01 fps, Avg. Travel Time= 0.6 min Peak Storage= 43 cf @ 12.16 hrs Average Depth at Peak Storage= 0.32' , Surface Width= 4.92' Bank-Full Depth= 0.50' Flow Area= 2.3 sf, Capacity= 11.72 cfs 3.00' x 0.50' deep channel, n= 0.025 Short grass Side Slope Z-value= 3.0 '/' Top Width= 6.00' Length= 34.0' Slope= 0.0294 '/' Inlet Invert= 894.00', Outlet Invert= 893.00' ‡ Reach 46uR: South Swale - at East Property Line of THs Inflow Outflow Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)5 4 3 2 1 0 Inflow Area=1.319 ac Avg. Flow Depth=0.32' Max Vel=4.07 fps n=0.025 L=34.0' S=0.0294 '/' Capacity=11.72 cfs 5.18 cfs 5.17 cfs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 339HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Reach 48R: Developed Area To Wetland 4 [40] Hint: Not Described (Outflow=Inflow) Inflow Area = 2.860 ac, 40.99% Impervious, Inflow Depth = 2.94" for 10y 24hr event Inflow = 4.07 cfs @ 12.39 hrs, Volume= 0.701 af Outflow = 4.07 cfs @ 12.39 hrs, Volume= 0.701 af, Atten= 0%, Lag= 0.0 min Routed to Pond 44P : Wetland 4 Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Reach 48R: Developed Area To Wetland 4 Inflow Outflow Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)4 3 2 1 0 Inflow Area=2.860 ac 4.07 cfs 4.07 cfs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 340HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Reach 50R: Bluff Creek Drainage [40] Hint: Not Described (Outflow=Inflow) Inflow Area = 78.187 ac, 13.39% Impervious, Inflow Depth = 1.99" for 10y 24hr event Inflow = 34.37 cfs @ 12.58 hrs, Volume= 12.969 af Outflow = 34.37 cfs @ 12.58 hrs, Volume= 12.969 af, Atten= 0%, Lag= 0.0 min Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Reach 50R: Bluff Creek Drainage Inflow Outflow Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)38 36 34 32 30 28 26 24 22 20 18 16 14 12 10 8 6 4 2 0 Inflow Area=78.187 ac 34.37 cfs 34.37 cfs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 341HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Pond 21P: Northwest Basin w Filtration Inflow Area = 16.882 ac, 27.57% Impervious, Inflow Depth = 2.71" for 10y 24hr event Inflow = 28.91 cfs @ 12.22 hrs, Volume= 3.812 af Outflow = 6.67 cfs @ 13.33 hrs, Volume= 3.407 af, Atten= 77%, Lag= 66.7 min Primary = 6.67 cfs @ 13.33 hrs, Volume= 3.407 af Routed to Reach 21R : Wetland 6 Lower Reach Secondary = 0.00 cfs @ 0.00 hrs, Volume= 0.000 af Routed to Reach 21R : Wetland 6 Lower Reach Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 894.46' @ 13.33 hrs Surf.Area= 34,736 sf Storage= 62,439 cf Plug-Flow detention time= 334.8 min calculated for 3.407 af (89% of inflow) Center-of-Mass det. time= 250.8 min ( 1,178.1 - 927.4 ) Volume Invert Avail.Storage Storage Description #1 892.50' 158,719 cf Open Pond (Prismatic) Listed below (Recalc) Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 892.50 8,125 0 0 892.54 8,180 326 326 892.55 30,215 192 518 893.00 31,280 13,836 14,354 894.00 33,630 32,455 46,809 895.00 36,050 34,840 81,649 896.00 38,530 37,290 118,939 897.00 41,030 39,780 158,719 Device Routing Invert Outlet Devices #1 Primary 887.86'18.0" Round Culvert L= 30.0' RCP, sq.cut end projecting, Ke= 0.500 Inlet / Outlet Invert= 887.86' / 887.71' S= 0.0050 '/' Cc= 0.900 n= 0.011 Concrete pipe, straight & clean, Flow Area= 1.77 sf #2 Device 1 889.70'8.0" Vert. Orifice - Underdrain C= 0.600 Limited to weir flow at low heads #3 Device 1 893.10'18.0" Vert. Orifice - Overflow C= 0.600 Limited to weir flow at low heads #4 Device 2 892.50'0.800 in/hr Exfiltration over Surface area from 891.69' - 891.74' Excluded Surface area = 0 sf Phase-In= 0.01' #5 Secondary 896.75'20.0' long x 30.0' breadth Broad-Crested Rectangular Weir Head (feet) 0.20 0.40 0.60 0.80 1.00 1.20 1.40 1.60 Coef. (English) 2.68 2.70 2.70 2.64 2.63 2.64 2.64 2.63 MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 342HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Primary OutFlow Max=6.67 cfs @ 13.33 hrs HW=894.46' TW=885.47' (Dynamic Tailwater) 1=Culvert (Passes 6.67 cfs of 20.58 cfs potential flow) 2=Orifice - Underdrain (Passes 0.00 cfs of 3.54 cfs potential flow) 4=Exfiltration (Exfiltration Controls 0.00 cfs) 3=Orifice - Overflow (Orifice Controls 6.67 cfs @ 3.97 fps) Secondary OutFlow Max=0.00 cfs @ 0.00 hrs HW=892.50' TW=885.00' (Dynamic Tailwater) 5=Broad-Crested Rectangular Weir ( Controls 0.00 cfs) Pond 21P: Northwest Basin w Filtration Inflow Outflow Primary Secondary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)32 30 28 26 24 22 20 18 16 14 12 10 8 6 4 2 0 Inflow Area=16.882 ac Peak Elev=894.46' Storage=62,439 cf 28.91 cfs 6.67 cfs 6.67 cfs 0.00 cfs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 343HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Pond 25P: West-North w Filtration Inflow Area = 4.570 ac, 58.96% Impervious, Inflow Depth = 3.28" for 10y 24hr event Inflow = 21.91 cfs @ 12.13 hrs, Volume= 1.248 af Outflow = 9.56 cfs @ 12.33 hrs, Volume= 1.248 af, Atten= 56%, Lag= 11.6 min Primary = 9.56 cfs @ 12.33 hrs, Volume= 1.248 af Routed to Pond 21P : Northwest Basin w Filtration Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 917.60' @ 12.33 hrs Surf.Area= 17,854 sf Storage= 19,198 cf Plug-Flow detention time= 88.8 min calculated for 1.248 af (100% of inflow) Center-of-Mass det. time= 88.8 min ( 866.8 - 777.9 ) Volume Invert Avail.Storage Storage Description #1 914.93' 36,108 cf Rock Bed (Prismatic) Listed below (Recalc) 90,520 cf Overall - 249 cf Embedded = 90,271 cf x 40.0% Voids #2 914.94' 249 cf 8.0" Round Pipe Storage Inside #1 L= 714.0' 36,357 cf Total Available Storage Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 914.93 17,854 0 0 920.00 17,854 90,520 90,520 Device Routing Invert Outlet Devices #1 Primary 908.00'18.0" Round Culvert L= 164.0' RCP, sq.cut end projecting, Ke= 0.500 Inlet / Outlet Invert= 908.00' / 905.82' S= 0.0133 '/' Cc= 0.900 n= 0.011 Concrete pipe, straight & clean, Flow Area= 1.77 sf #2 Device 1 912.63'8.0" Vert. Underdrain C= 0.600 Limited to weir flow at low heads #3 Device 1 915.67'18.0" Vert. Overflow C= 0.600 Limited to weir flow at low heads #4 Device 2 914.93'0.800 in/hr Filtration over Surface area Phase-In= 0.01' Primary OutFlow Max=9.56 cfs @ 12.33 hrs HW=917.60' TW=893.67' (Dynamic Tailwater) 1=Culvert (Passes 9.56 cfs of 23.80 cfs potential flow) 2=Underdrain (Passes 0.33 cfs of 3.62 cfs potential flow) 4=Filtration (Exfiltration Controls 0.33 cfs) 3=Overflow (Orifice Controls 9.23 cfs @ 5.22 fps) MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 344HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Pond 25P: West-North w Filtration Inflow Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 Inflow Area=4.570 ac Peak Elev=917.60' Storage=19,198 cf 21.91 cfs 9.56 cfs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 345HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Pond 28P: Avienda Pkwy Surface Basin NOT UPDATED [44] Hint: Outlet device #3 is below defined storage Inflow Area = 5.809 ac, 26.23% Impervious, Inflow Depth = 2.67" for 10y 24hr event Inflow = 18.53 cfs @ 12.19 hrs, Volume= 1.291 af Outflow = 2.32 cfs @ 13.16 hrs, Volume= 1.291 af, Atten= 87%, Lag= 58.1 min Primary = 2.32 cfs @ 13.16 hrs, Volume= 1.291 af Routed to Pond 21P : Northwest Basin w Filtration Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 913.52' @ 13.16 hrs Surf.Area= 35,302 sf Storage= 32,842 cf Plug-Flow detention time= (not calculated: outflow precedes inflow) Center-of-Mass det. time= 311.1 min ( 1,107.4 - 796.3 ) Volume Invert Avail.Storage Storage Description #1 912.53' 292,399 cf Open Pond (Prismatic) Listed below (Recalc) Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 912.53 30,930 0 0 919.00 59,456 292,399 292,399 Device Routing Invert Outlet Devices #1 Primary 908.15'12.0" Round Culvert L= 159.0' RCP, square edge headwall, Ke= 0.500 Inlet / Outlet Invert= 908.15' / 906.81' S= 0.0084 '/' Cc= 0.900 n= 0.013 Concrete pipe, straight & clean, Flow Area= 0.79 sf #2 Device 1 909.73'12.0" Round Culvert L= 165.0' RCP, square edge headwall, Ke= 0.500 Inlet / Outlet Invert= 909.73' / 908.15' S= 0.0096 '/' Cc= 0.900 n= 0.013 Concrete pipe, straight & clean, Flow Area= 0.79 sf #3 Device 2 912.45'12.0" Round Culvert L= 17.0' RCP, end-section conforming to fill, Ke= 0.500 Inlet / Outlet Invert= 912.45' / 912.37' S= 0.0047 '/' Cc= 0.900 n= 0.013 Concrete pipe, straight & clean, Flow Area= 0.79 sf Primary OutFlow Max=2.32 cfs @ 13.16 hrs HW=913.52' TW=894.45' (Dynamic Tailwater) 1=Culvert (Passes 2.32 cfs of 5.91 cfs potential flow) 2=Culvert (Passes 2.32 cfs of 5.10 cfs potential flow) 3=Culvert (Barrel Controls 2.32 cfs @ 3.42 fps) MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 346HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Pond 28P: Avienda Pkwy Surface Basin NOT UPDATED Inflow Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 Inflow Area=5.809 ac Peak Elev=913.52' Storage=32,842 cf 18.53 cfs 2.32 cfs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 347HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Pond 31P: West-Central Surface Basin w Filtration Inflow Area = 0.876 ac, 35.33% Impervious, Inflow Depth = 2.79" for 10y 24hr event Inflow = 3.21 cfs @ 12.18 hrs, Volume= 0.204 af Outflow = 0.12 cfs @ 15.12 hrs, Volume= 0.204 af, Atten= 96%, Lag= 176.4 min Primary = 0.12 cfs @ 15.12 hrs, Volume= 0.204 af Routed to Pond 33P : Wetland 3 Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 924.97' @ 15.12 hrs Surf.Area= 6,650 sf Storage= 5,814 cf Plug-Flow detention time= 473.7 min calculated for 0.204 af (100% of inflow) Center-of-Mass det. time= 473.7 min ( 1,266.5 - 792.7 ) Volume Invert Avail.Storage Storage Description #1 924.00' 13,385 cf Surface Basin (Prismatic) Listed below (Recalc) Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 924.00 5,360 0 0 926.00 8,025 13,385 13,385 Device Routing Invert Outlet Devices #1 Primary 920.93'15.0" Round Culvert L= 42.0' RCP, sq.cut end projecting, Ke= 0.500 Inlet / Outlet Invert= 920.93' / 920.80' S= 0.0031 '/' Cc= 0.900 n= 0.011 Concrete pipe, straight & clean, Flow Area= 1.23 sf #2 Device 1 920.93'8.0" Vert. Orifice/Grate - Underdrain C= 0.600 Limited to weir flow at low heads #3 Device 1 925.00'8.0" Vert. Orifice/Grate - Overflow C= 0.600 Limited to weir flow at low heads #4 Device 2 924.00'0.800 in/hr Filtration over Horizontal area above 923.22' Excluded Horizontal area = 0 sf Phase-In= 0.01' Primary OutFlow Max=0.12 cfs @ 15.12 hrs HW=924.97' TW=921.25' (Dynamic Tailwater) 1=Culvert (Passes 0.12 cfs of 10.92 cfs potential flow) 2=Orifice/Grate - Underdrain (Passes 0.12 cfs of 3.24 cfs potential flow) 4=Filtration (Exfiltration Controls 0.12 cfs) 3=Orifice/Grate - Overflow ( Controls 0.00 cfs) MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 348HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Pond 31P: West-Central Surface Basin w Filtration Inflow Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)3 2 1 0 Inflow Area=0.876 ac Peak Elev=924.97' Storage=5,814 cf 3.21 cfs 0.12 cfs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 349HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Pond 33P: Wetland 3 Inflow Area = 5.243 ac, 15.35% Impervious, Inflow Depth = 2.60" for 10y 24hr event Inflow = 16.64 cfs @ 12.12 hrs, Volume= 1.135 af Outflow = 2.16 cfs @ 12.80 hrs, Volume= 1.135 af, Atten= 87%, Lag= 40.7 min Primary = 2.16 cfs @ 12.80 hrs, Volume= 1.135 af Routed to Pond 34P : West - South (existing) Secondary = 0.00 cfs @ 0.00 hrs, Volume= 0.000 af Routed to Reach 30R : West Drainage Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 921.41' @ 12.80 hrs Surf.Area= 45,612 sf Storage= 21,773 cf Plug-Flow detention time= 156.7 min calculated for 1.135 af (100% of inflow) Center-of-Mass det. time= 158.0 min ( 1,036.6 - 878.6 ) Volume Invert Avail.Storage Storage Description #1 920.58' 140,121 cf Custom Stage Data (Prismatic) Listed below (Recalc) Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 920.58 100 0 0 921.00 30,000 6,321 6,321 922.00 68,200 49,100 55,421 923.00 101,200 84,700 140,121 Device Routing Invert Outlet Devices #1 Primary 920.58'12.0" Round Culvert L= 455.0' RCP, end-section conforming to fill, Ke= 0.500 Inlet / Outlet Invert= 920.58' / 911.02' S= 0.0210 '/' Cc= 0.900 n= 0.013 Concrete pipe, straight & clean, Flow Area= 0.79 sf #2 Secondary 921.90'Asymmetrical Weir, C= 3.27 Offset (feet) 0.00 19.00 40.00 50.00 76.00 103.00 Height (feet) 1.50 0.50 0.00 0.00 0.50 1.50 Primary OutFlow Max=2.16 cfs @ 12.80 hrs HW=921.41' TW=907.95' (Dynamic Tailwater) 1=Culvert (Inlet Controls 2.16 cfs @ 3.10 fps) Secondary OutFlow Max=0.00 cfs @ 0.00 hrs HW=920.58' TW=0.00' (Dynamic Tailwater) 2=Asymmetrical Weir ( Controls 0.00 cfs) MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 350HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Pond 33P: Wetland 3 Inflow Outflow Primary Secondary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 Inflow Area=5.243 ac Peak Elev=921.41' Storage=21,773 cf 16.64 cfs 2.16 cfs 2.16 cfs 0.00 cfs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 351HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Pond 34P: West - South (existing) Inflow Area = 8.421 ac, 9.56% Impervious, Inflow Depth = 2.01" for 10y 24hr event Inflow = 5.18 cfs @ 12.22 hrs, Volume= 1.407 af Outflow = 4.33 cfs @ 12.38 hrs, Volume= 1.407 af, Atten= 16%, Lag= 9.8 min Primary = 4.33 cfs @ 12.38 hrs, Volume= 1.407 af Routed to Reach 30R : West Drainage Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 908.15' @ 12.38 hrs Surf.Area= 0.079 ac Storage= 0.038 af Plug-Flow detention time= (not calculated: outflow precedes inflow) Center-of-Mass det. time= 5.0 min ( 1,001.9 - 996.9 ) Volume Invert Avail.Storage Storage Description #1 907.00' 1.603 af Custom Stage Data (Prismatic) Listed below (Recalc) Elevation Surf.Area Inc.Store Cum.Store (feet) (acres) (acre-feet) (acre-feet) 907.00 0.000 0.000 0.000 908.00 0.055 0.028 0.028 909.00 0.208 0.131 0.159 910.00 0.413 0.310 0.469 911.00 0.573 0.493 0.962 912.00 0.709 0.641 1.603 Device Routing Invert Outlet Devices #1 Primary 907.00'15.0" Round Culvert L= 48.8' RCP, end-section conforming to fill, Ke= 0.500 Inlet / Outlet Invert= 907.00' / 906.00' S= 0.0205 '/' Cc= 0.900 n= 0.013 Concrete pipe, straight & clean, Flow Area= 1.23 sf #2 Primary 911.22'Asymmetrical Weir, C= 3.27 Offset (feet) 0.00 12.00 18.00 28.00 49.00 88.00 Height (feet) 1.35 0.02 0.00 0.15 0.70 1.35 Primary OutFlow Max=4.33 cfs @ 12.38 hrs HW=908.15' TW=0.00' (Dynamic Tailwater) 1=Culvert (Inlet Controls 4.33 cfs @ 3.66 fps) 2=Asymmetrical Weir ( Controls 0.00 cfs) MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 352HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Pond 34P: West - South (existing) Inflow Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)5 4 3 2 1 0 Inflow Area=8.421 ac Peak Elev=908.15' Storage=0.038 af 5.18 cfs 4.33 cfs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 353HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Pond 41.3P: South-West Temp Basin Inflow Area = 14.560 ac, 9.59% Impervious, Inflow Depth = 2.43" for 10y 24hr event Inflow = 28.42 cfs @ 12.19 hrs, Volume= 2.944 af Outflow = 13.79 cfs @ 12.73 hrs, Volume= 2.943 af, Atten= 51%, Lag= 32.2 min Primary = 2.70 cfs @ 12.73 hrs, Volume= 1.652 af Routed to Reach 44R : Southwest Secondary = 11.08 cfs @ 12.73 hrs, Volume= 1.291 af Routed to Reach 44R : Southwest Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 878.55' @ 12.73 hrs Surf.Area= 23,866 sf Storage= 49,504 cf Plug-Flow detention time= 127.6 min calculated for 2.943 af (100% of inflow) Center-of-Mass det. time= 126.7 min ( 957.3 - 830.5 ) Volume Invert Avail.Storage Storage Description #1 875.63' 126,081 cf Surface Basin (Prismatic) Listed below (Recalc) Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 875.63 8,290 0 0 876.00 12,755 3,893 3,893 878.00 20,605 33,360 37,253 879.00 26,525 23,565 60,818 880.00 32,000 29,263 90,081 881.00 40,000 36,000 126,081 Device Routing Invert Outlet Devices #1 Primary 875.63'15.0" Round Culvert L= 46.0' RCP, end-section conforming to fill, Ke= 0.500 Inlet / Outlet Invert= 875.63' / 875.00' S= 0.0137 '/' Cc= 0.900 n= 0.011 Concrete pipe, straight & clean, Flow Area= 1.23 sf #2 Secondary 877.00'24.0" Round Culvert L= 46.0' RCP, end-section conforming to fill, Ke= 0.500 Inlet / Outlet Invert= 877.00' / 876.37' S= 0.0137 '/' Cc= 0.900 n= 0.011 Concrete pipe, straight & clean, Flow Area= 3.14 sf #3 Device 1 875.63'8.0" Round Culvert L= 8.0' CPP, square edge headwall, Ke= 0.500 Inlet / Outlet Invert= 875.63' / 875.52' S= 0.0138 '/' Cc= 0.900 n= 0.011 PVC, smooth interior, Flow Area= 0.35 sf Primary OutFlow Max=2.70 cfs @ 12.73 hrs HW=878.55' TW=0.00' (Dynamic Tailwater) 1=Culvert (Passes 2.70 cfs of 8.95 cfs potential flow) 3=Culvert (Inlet Controls 2.70 cfs @ 7.75 fps) Secondary OutFlow Max=11.08 cfs @ 12.73 hrs HW=878.55' TW=0.00' (Dynamic Tailwater) 2=Culvert (Inlet Controls 11.08 cfs @ 4.24 fps) MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 354HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Pond 41.3P: South-West Temp Basin Inflow Outflow Primary Secondary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)30 28 26 24 22 20 18 16 14 12 10 8 6 4 2 0 Inflow Area=14.560 ac Peak Elev=878.55' Storage=49,504 cf 28.42 cfs 13.79 cfs 2.70 cfs 11.08 cfs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 355HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Pond 44P: Wetland 4 Inflow Area = 13.102 ac, 8.95% Impervious, Inflow Depth = 1.14" for 10y 24hr event Inflow = 8.95 cfs @ 12.36 hrs, Volume= 1.248 af Outflow = 8.94 cfs @ 12.37 hrs, Volume= 1.247 af, Atten= 0%, Lag= 0.6 min Primary = 8.94 cfs @ 12.37 hrs, Volume= 1.247 af Routed to Reach 44R : Southwest Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 884.44' @ 12.37 hrs Surf.Area= 1,842 sf Storage= 594 cf Plug-Flow detention time= 4.5 min calculated for 1.247 af (100% of inflow) Center-of-Mass det. time= 3.8 min ( 935.1 - 931.3 ) Volume Invert Avail.Storage Storage Description #1 884.00' 37,633 cf Custom Stage Data (Prismatic) Listed below (Recalc) Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 884.00 870 0 0 884.50 1,980 713 713 885.00 3,500 1,370 2,083 886.00 7,800 5,650 7,733 887.00 14,000 10,900 18,633 888.00 24,000 19,000 37,633 Device Routing Invert Outlet Devices #1 Primary 884.03'Asymmetrical Weir, C= 3.27 Offset (feet) 0.00 51.00 133.60 176.00 217.30 239.00 Elev. (feet) 889.78 886.05 884.03 885.84 889.00 889.78 Primary OutFlow Max=8.94 cfs @ 12.37 hrs HW=884.44' TW=0.00' (Dynamic Tailwater) 1=Asymmetrical Weir (Weir Controls 8.94 cfs @ 0.84 fps) MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 356HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Pond 44P: Wetland 4 Inflow Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)10 9 8 7 6 5 4 3 2 1 0 Inflow Area=13.102 ac Peak Elev=884.44' Storage=594 cf 8.95 cfs 8.94 cfs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 357HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Pond 46P: Triangle Basin Inflow Area = 2.769 ac, 15.75% Impervious, Inflow Depth = 2.52" for 10y 24hr event Inflow = 9.80 cfs @ 12.16 hrs, Volume= 0.581 af Outflow = 5.54 cfs @ 12.32 hrs, Volume= 0.581 af, Atten= 44%, Lag= 9.6 min Primary = 5.54 cfs @ 12.32 hrs, Volume= 0.581 af Routed to Pond 41.3P : South-West Temp Basin Secondary = 0.00 cfs @ 0.00 hrs, Volume= 0.000 af Routed to Pond 41.3P : South-West Temp Basin Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 889.49' @ 12.32 hrs Surf.Area= 4,546 sf Storage= 7,107 cf Plug-Flow detention time= 125.1 min calculated for 0.581 af (100% of inflow) Center-of-Mass det. time= 125.2 min ( 922.0 - 796.9 ) Volume Invert Avail.Storage Storage Description #1 887.17' 14,801 cf Open pond (Prismatic) Listed below (Recalc) Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 887.17 1,586 0 0 890.90 6,350 14,801 14,801 Device Routing Invert Outlet Devices #1 Primary 884.37'18.0" Round Culvert L= 125.0' RCP, sq.cut end projecting, Ke= 0.500 Inlet / Outlet Invert= 884.37' / 875.62' S= 0.0700 '/' Cc= 0.900 n= 0.011 Concrete pipe, straight & clean, Flow Area= 1.77 sf #2 Device 1 888.00'15.0" Vert. Orifice/Grate C= 0.600 Limited to weir flow at low heads #3 Secondary 890.75'20.0' long x 5.0' breadth Broad-Crested Rectangular Weir Head (feet) 0.20 0.40 0.60 0.80 1.00 1.20 1.40 1.60 1.80 2.00 2.50 3.00 3.50 4.00 4.50 5.00 5.50 Coef. (English) 2.34 2.50 2.70 2.68 2.68 2.66 2.65 2.65 2.65 2.65 2.67 2.66 2.68 2.70 2.74 2.79 2.88 #4 Device 1 887.17'0.450 in/hr Filtration over Surface area Phase-In= 0.01' Primary OutFlow Max=5.54 cfs @ 12.32 hrs HW=889.49' TW=877.86' (Dynamic Tailwater) 1=Culvert (Passes 5.54 cfs of 17.78 cfs potential flow) 2=Orifice/Grate (Orifice Controls 5.49 cfs @ 4.47 fps) 4=Filtration (Exfiltration Controls 0.05 cfs) Secondary OutFlow Max=0.00 cfs @ 0.00 hrs HW=887.17' TW=875.63' (Dynamic Tailwater) 3=Broad-Crested Rectangular Weir ( Controls 0.00 cfs) MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 358HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Pond 46P: Triangle Basin Inflow Outflow Primary Secondary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)10 9 8 7 6 5 4 3 2 1 0 Inflow Area=2.769 ac Peak Elev=889.49' Storage=7,107 cf 9.80 cfs 5.54 cfs 5.54 cfs 0.00 cfs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 359HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Pond 47P: Bluff Creek - West Basin - 60" PIPE Inflow Area = 2.860 ac, 40.99% Impervious, Inflow Depth = 2.94" for 10y 24hr event Inflow = 12.33 cfs @ 12.12 hrs, Volume= 0.701 af Outflow = 4.07 cfs @ 12.39 hrs, Volume= 0.701 af, Atten= 67%, Lag= 15.7 min Primary = 4.07 cfs @ 12.39 hrs, Volume= 0.701 af Routed to Reach 48R : Developed Area To Wetland 4 Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 911.09' @ 12.39 hrs Surf.Area= 6,385 sf Storage= 12,742 cf Plug-Flow detention time= 196.9 min calculated for 0.701 af (100% of inflow) Center-of-Mass det. time= 196.9 min ( 981.8 - 784.8 ) Volume Invert Avail.Storage Storage Description #1A 908.00' 8,037 cf 56.09'W x 113.17'L x 6.08'H Field A 38,615 cf Overall - 18,524 cf Embedded = 20,091 cf x 40.0% Voids #2A 908.00' 15,598 cf ADS N-12 60" x 35 Inside #1 Inside= 59.5"W x 59.5"H => 19.30 sf x 20.00'L = 386.0 cf Outside= 67.0"W x 67.0"H => 22.92 sf x 20.00'L = 458.4 cf 35 Chambers in 7 Rows 54.09' Header x 19.30 sf x 2 = 2,087.7 cf Inside #3 908.00' 34,645 cf 4.00'D x 919.00'H Vertical Cone/Cylinder x 3 58,280 cf Total Available Storage Storage Group A created with Chamber Wizard Device Routing Invert Outlet Devices #1 Primary 905.20'15.0" Round Culvert L= 312.0' RCP, square edge headwall, Ke= 0.500 Inlet / Outlet Invert= 905.20' / 901.89' S= 0.0106 '/' Cc= 0.900 n= 0.013 Concrete pipe, straight & clean, Flow Area= 1.23 sf #2 Device 1 905.50'14.0" Round Culvert L= 20.0' CPP, square edge headwall, Ke= 0.500 Inlet / Outlet Invert= 905.50' / 905.20' S= 0.0150 '/' Cc= 0.900 n= 0.011 PVC, smooth interior, Flow Area= 1.07 sf #3 Device 2 909.50'12.0" Vert. Orifice - Overflow C= 0.600 Limited to weir flow at low heads #4 Device 2 906.00'8.0" Vert. Orifice - Underdrain C= 0.600 Limited to weir flow at low heads #5 Device 4 908.00'0.800 in/hr Filtration over Horizontal area Phase-In= 0.01' Primary OutFlow Max=4.07 cfs @ 12.39 hrs HW=911.09' TW=0.00' (Dynamic Tailwater) 1=Culvert (Passes 4.07 cfs of 9.37 cfs potential flow) 2=Culvert (Passes 4.07 cfs of 11.52 cfs potential flow) 3=Orifice - Overflow (Orifice Controls 3.95 cfs @ 5.03 fps) 4=Orifice - Underdrain (Passes 0.12 cfs of 3.67 cfs potential flow) 5=Filtration (Exfiltration Controls 0.12 cfs) MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 360HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Pond 47P: Bluff Creek - West Basin - 60" PIPE - Chamber Wizard Field A Chamber Model = ADS N-12 60" (ADS N-12® Pipe) Inside= 59.5"W x 59.5"H => 19.30 sf x 20.00'L = 386.0 cf Outside= 67.0"W x 67.0"H => 22.92 sf x 20.00'L = 458.4 cf 67.0" Wide + 30.0" Spacing = 97.0" C-C Row Spacing 5 Chambers/Row x 20.00' Long +5.58' Header x 2 = 111.17' Row Length +12.0" End Stone x 2 = 113.17' Base Length 7 Rows x 67.0" Wide + 30.0" Spacing x 6 + 12.0" Side Stone x 2 = 56.09' Base Width 67.0" Chamber Height + 6.0" Stone Cover = 6.08' Field Height 35 Chambers x 386.0 cf + 54.09' Header x 19.30 sf x 2 = 15,597.7 cf Chamber Storage 35 Chambers x 458.4 cf + 54.09' Header x 22.92 sf x 2 = 18,524.0 cf Displacement 38,615.4 cf Field - 18,524.0 cf Chambers = 20,091.4 cf Stone x 40.0% Voids = 8,036.6 cf Stone Storage Chamber Storage + Stone Storage = 23,634.3 cf = 0.543 af Overall Storage Efficiency = 61.2% Overall System Size = 113.17' x 56.09' x 6.08' 35 Chambers 1,430.2 cy Field 744.1 cy Stone MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 361HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Pond 47P: Bluff Creek - West Basin - 60" PIPE Inflow Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)13 12 11 10 9 8 7 6 5 4 3 2 1 0 Inflow Area=2.860 ac Peak Elev=911.09' Storage=12,742 cf 12.33 cfs 4.07 cfs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 362HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Pond 48P: Bluff Creek - East Basin [44] Hint: Outlet device #2 is below defined storage Inflow Area = 7.828 ac, 28.98% Impervious, Inflow Depth = 2.84" for 10y 24hr event Inflow = 33.64 cfs @ 12.09 hrs, Volume= 1.850 af Outflow = 1.57 cfs @ 13.63 hrs, Volume= 1.850 af, Atten= 95%, Lag= 91.9 min Primary = 1.57 cfs @ 13.63 hrs, Volume= 1.850 af Routed to Pond 54P : South-East Temp Basin Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 898.46' @ 13.63 hrs Surf.Area= 44,049 sf Storage= 53,268 cf Plug-Flow detention time= (not calculated: outflow precedes inflow) Center-of-Mass det. time= 437.4 min ( 1,220.9 - 783.5 ) Volume Invert Avail.Storage Storage Description #1 897.20' 340,085 cf Open Pond (Prismatic) Listed below (Recalc) Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 897.20 40,540 0 0 904.00 59,485 340,085 340,085 Device Routing Invert Outlet Devices #1 Primary 895.35'12.0" Round Culvert L= 637.0' RCP, sq.cut end projecting, Ke= 0.500 Inlet / Outlet Invert= 895.35' / 888.98' S= 0.0100 '/' Cc= 0.900 n= 0.017 Concrete sewer w/manholes & inlets, Flow Area= 0.79 sf #2 Device 1 897.00'8.0" Round Temp Outlet Pipe L= 21.0' CPP, mitered to conform to fill, Ke= 0.700 Inlet / Outlet Invert= 897.00' / 895.35' S= 0.0786 '/' Cc= 0.900 n= 0.011 PVC, smooth interior, Flow Area= 0.35 sf Primary OutFlow Max=1.57 cfs @ 13.63 hrs HW=898.46' TW=881.91' (Dynamic Tailwater) 1=Culvert (Passes 1.57 cfs of 3.07 cfs potential flow) 2=Temp Outlet Pipe (Inlet Controls 1.57 cfs @ 4.51 fps) MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 363HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Pond 48P: Bluff Creek - East Basin Inflow Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)36 34 32 30 28 26 24 22 20 18 16 14 12 10 8 6 4 2 0 Inflow Area=7.828 ac Peak Elev=898.46' Storage=53,268 cf 33.64 cfs 1.57 cfs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 364HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Pond 52P: South-Center Temp Basin Inflow Area = 8.180 ac, 9.42% Impervious, Inflow Depth = 2.43" for 10y 24hr event Inflow = 17.29 cfs @ 12.33 hrs, Volume= 1.656 af Outflow = 17.04 cfs @ 12.36 hrs, Volume= 1.656 af, Atten= 1%, Lag= 2.1 min Primary = 17.04 cfs @ 12.36 hrs, Volume= 1.656 af Routed to Pond 41.3P : South-West Temp Basin Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 904.14' @ 12.36 hrs Surf.Area= 5,951 sf Storage= 2,322 cf Plug-Flow detention time= 2.7 min calculated for 1.656 af (100% of inflow) Center-of-Mass det. time= 2.7 min ( 812.0 - 809.4 ) Volume Invert Avail.Storage Storage Description #1 903.14' 49,230 cf Custom Stage Data (Prismatic) Listed below (Recalc) Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 903.14 10 0 0 904.00 3,775 1,628 1,628 905.00 19,015 11,395 13,023 906.00 53,400 36,208 49,230 Device Routing Invert Outlet Devices #1 Primary 903.14'Custom Weir/Orifice, Cv= 2.62 (C= 3.28) Head (feet) 0.00 0.25 0.50 0.75 1.00 2.00 Width (feet) 0.10 4.20 6.25 8.30 12.50 12.50 Primary OutFlow Max=17.04 cfs @ 12.36 hrs HW=904.14' TW=878.03' (Dynamic Tailwater) 1=Custom Weir/Orifice (Weir Controls 17.04 cfs @ 2.71 fps) MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 365HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Pond 52P: South-Center Temp Basin Inflow Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 Inflow Area=8.180 ac Peak Elev=904.14' Storage=2,322 cf 17.29 cfs 17.04 cfs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 366HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Pond 54P: South-East Temp Basin Inflow Area = 13.937 ac, 16.28% Impervious, Inflow Depth = 2.59" for 10y 24hr event Inflow = 13.91 cfs @ 12.40 hrs, Volume= 3.004 af Outflow = 1.51 cfs @ 18.60 hrs, Volume= 3.003 af, Atten= 89%, Lag= 372.4 min Primary = 1.51 cfs @ 18.60 hrs, Volume= 3.003 af Routed to Reach 42.2R : Southeast Secondary = 0.00 cfs @ 0.00 hrs, Volume= 0.000 af Routed to Reach 42.2R : Southeast Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 882.51' @ 18.60 hrs Surf.Area= 19,063 sf Storage= 52,004 cf Plug-Flow detention time= 486.9 min calculated for 3.003 af (100% of inflow) Center-of-Mass det. time= 486.4 min ( 1,552.5 - 1,066.1 ) Volume Invert Avail.Storage Storage Description #1 879.00' 121,861 cf Custom Stage Data (Prismatic) Listed below (Recalc) Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 879.00 11,945 0 0 881.00 14,583 26,528 26,528 883.00 20,500 35,083 61,611 884.00 100,000 60,250 121,861 Device Routing Invert Outlet Devices #1 Primary 874.38'18.0" Round Culvert L= 68.0' RCP, sq.cut end projecting, Ke= 0.500 Inlet / Outlet Invert= 874.38' / 874.05' S= 0.0049 '/' Cc= 0.900 n= 0.013 Concrete pipe, straight & clean, Flow Area= 1.77 sf #2 Device 1 879.00'6.0" Round Culvert L= 29.0' CPP, mitered to conform to fill, Ke= 0.700 Inlet / Outlet Invert= 879.00' / 878.71' S= 0.0100 '/' Cc= 0.900 n= 0.011 PVC, smooth interior, Flow Area= 0.20 sf #3 Secondary 883.85'25.0' long x 50.0' breadth Broad-Crested Rectangular Weir Head (feet) 0.20 0.40 0.60 0.80 1.00 1.20 1.40 1.60 Coef. (English) 2.68 2.70 2.70 2.64 2.63 2.64 2.64 2.63 Primary OutFlow Max=1.51 cfs @ 18.60 hrs HW=882.51' TW=0.00' (Dynamic Tailwater) 1=Culvert (Passes 1.51 cfs of 22.59 cfs potential flow) 2=Culvert (Inlet Controls 1.51 cfs @ 7.68 fps) Secondary OutFlow Max=0.00 cfs @ 0.00 hrs HW=879.00' TW=0.00' (Dynamic Tailwater) 3=Broad-Crested Rectangular Weir ( Controls 0.00 cfs) MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 367HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Pond 54P: South-East Temp Basin Inflow Outflow Primary Secondary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 Inflow Area=13.937 ac Peak Elev=882.51' Storage=52,004 cf 13.91 cfs 1.51 cfs 1.51 cfs 0.00 cfs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 368HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Time span=0.00-360.00 hrs, dt=0.01 hrs, 36001 points Runoff by SCS TR-20 method, UH=SCS, Weighted-CN Reach routing by Dyn-Stor-Ind method - Pond routing by Dyn-Stor-Ind method Runoff Area=19,930 sf 0.00% Impervious Runoff Depth=5.07"Subcatchment 13.1S: Front Yards - North Tc=5.0 min CN=80 Runoff=4.10 cfs 0.193 af Runoff Area=21,220 sf 0.00% Impervious Runoff Depth=5.07"Subcatchment 13.2S: Front Yards - South Tc=5.0 min CN=80 Runoff=4.36 cfs 0.206 af Runoff Area=5,069 sf 76.64% Impervious Runoff Depth=6.70"Subcatchment 16oS: East Offsite Tc=5.0 min CN=94 Runoff=1.26 cfs 0.065 af Runoff Area=283,295 sf 6.71% Impervious Runoff Depth=5.19"Subcatchment 21S: Northwest Flow Length=440' Tc=14.9 min CN=81 Runoff=38.92 cfs 2.812 af Runoff Area=10,548 sf 0.00% Impervious Runoff Depth=4.85"Subcatchment 22oS: From Lyman Flow Length=57' Slope=0.3330 '/' Tc=5.0 min CN=78 Runoff=2.08 cfs 0.098 af Runoff Area=41,685 sf 0.00% Impervious Runoff Depth=5.07"Subcatchment 22S: Direct to Wetland 6 Tc=5.0 min CN=80 Runoff=8.57 cfs 0.405 af Runoff Area=199,050 sf 58.96% Impervious Runoff Depth=6.34"Subcatchment 25S: West North Tc=10.0 min CN=91 Runoff=38.10 cfs 2.415 af Runoff Area=227,645 sf 28.54% Impervious Runoff Depth=5.65"Subcatchment 28S: Avienda Pkwy Tc=15.0 min CN=85 Runoff=33.28 cfs 2.459 af Runoff Area=5,467 sf 25.44% Impervious Runoff Depth=5.65"Subcatchment 29oS: North Offsite Tc=5.0 min CN=85 Runoff=1.23 cfs 0.059 af Runoff Area=38,150 sf 35.33% Impervious Runoff Depth=5.76"Subcatchment 31S: West Central Flow Length=345' Tc=13.2 min CN=86 Runoff=6.02 cfs 0.420 af Runoff Area=115,865 sf 17.26% Impervious Runoff Depth=5.19"Subcatchment 33oS: Offsite West - North Flow Length=431' Tc=7.3 min UI Adjusted CN=81 Runoff=21.55 cfs 1.150 af Runoff Area=74,385 sf 2.13% Impervious Runoff Depth=5.88"Subcatchment 33S: Direct to Wetland 3 Tc=12.0 min CN=87 Runoff=12.46 cfs 0.836 af Runoff Area=25,345 sf 22.45% Impervious Runoff Depth=5.53"Subcatchment 34dS: Offsite West Direct Tc=10.0 min CN=84 Runoff=4.40 cfs 0.268 af Runoff Area=32,845 sf 0.00% Impervious Runoff Depth=5.07"Subcatchment 34oS: Offsite to West South Tc=15.0 min CN=80 Runoff=4.39 cfs 0.319 af Runoff Area=105,570 sf 0.00% Impervious Runoff Depth=2.39"Subcatchment 34S: West Woods Flow Length=268' Tc=11.1 min CN=55 Runoff=7.22 cfs 0.482 af Runoff Area=165,040 sf 0.00% Impervious Runoff Depth=2.39"Subcatchment 35S: Southwest Flow Length=270' Tc=18.3 min CN=55 Runoff=8.89 cfs 0.754 af MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 369HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Runoff Area=1,628 sf 100.00% Impervious Runoff Depth=7.17"Subcatchment 36oS: Southwest Offsite Tc=5.0 min CN=98 Runoff=0.41 cfs 0.022 af Runoff Area=63,545 sf 52.82% Impervious Runoff Depth=6.23"Subcatchment 40.4S: So. Villas Private Flow Length=845' Tc=13.0 min CN=90 Runoff=10.71 cfs 0.757 af Runoff Area=157,310 sf 5.27% Impervious Runoff Depth=5.19"Subcatchment 41.3S: South-West Flow Length=285' Tc=8.9 min CN=81 Runoff=27.18 cfs 1.561 af Runoff Area=21,960 sf 0.00% Impervious Runoff Depth=5.07"Subcatchment 42.1S: South Fringe Tc=5.0 min CN=80 Runoff=4.52 cfs 0.213 af Runoff Area=8,870 sf 0.00% Impervious Runoff Depth=4.85"Subcatchment 42.2S: Southeast Fringe Tc=5.0 min CN=78 Runoff=1.75 cfs 0.082 af Runoff Area=140,400 sf 0.00% Impervious Runoff Depth=2.39"Subcatchment 43.1S: East Woods Flow Length=530' Tc=15.2 min CN=55 Runoff=8.28 cfs 0.642 af Runoff Area=76,080 sf 0.00% Impervious Runoff Depth=2.39"Subcatchment 43.2S: Northeast Woods Flow Length=623' Tc=19.5 min CN=55 Runoff=3.98 cfs 0.348 af Runoff Area=446,125 sf 0.00% Impervious Runoff Depth=2.39"Subcatchment 44S: North Woods Tc=20.0 min CN=55 Runoff=23.03 cfs 2.039 af Runoff Area=63,170 sf 0.00% Impervious Runoff Depth=5.07"Subcatchment 46S: Direct to Tri. Basin Flow Length=755' Tc=11.5 min CN=80 Runoff=9.59 cfs 0.613 af Runoff Area=57,455 sf 33.07% Impervious Runoff Depth=5.76"Subcatchment 46uS: Rear Yards of South Flow Length=755' Tc=11.5 min CN=86 Runoff=9.69 cfs 0.633 af Runoff Area=103,380 sf 49.41% Impervious Runoff Depth=6.11"Subcatchment 47S: Bluff Creek Pkwy - Tc=10.0 min CN=89 Runoff=19.33 cfs 1.208 af Runoff Area=168,700 sf 56.27% Impervious Runoff Depth=6.46"Subcatchment 48S: Bluff Creek Pkwy - Tc=10.0 min CN=92 Runoff=32.63 cfs 2.085 af Runoff Area=292,770 sf 0.00% Impervious Runoff Depth=5.07"Subcatchment 52S: South - Center Flow Length=660' Slope=0.0100 '/' Tc=27.0 min CN=80 Runoff=29.26 cfs 2.842 af Runoff Area=266,110 sf 0.00% Impervious Runoff Depth=5.07"Subcatchment 54S: South - East Flow Length=418' Tc=27.7 min CN=80 Runoff=26.28 cfs 2.583 af Runoff Area=167,215 sf 0.00% Impervious Runoff Depth=5.07"Subcatchment 55S: Direct to Bluff Creek - Tc=5.0 min CN=80 Runoff=34.38 cfs 1.623 af Inflow=14.53 cfs 8.035 afReach 20R: Northwest Drainage Outflow=14.53 cfs 8.035 af Avg. Flow Depth=0.62' Max Vel=1.00 fps Inflow=14.54 cfs 8.035 afReach 21R: Wetland 6 Lower Reach n=0.050 L=187.0' S=0.0053 '/' Capacity=3,072.14 cfs Outflow=14.53 cfs 8.035 af MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 370HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Inflow=18.43 cfs 4.253 afReach 30R: West Drainage Outflow=18.43 cfs 4.253 af Inflow=11.63 cfs 1.022 afReach 35R: Direct Runoff Outflow=11.63 cfs 1.022 af Inflow=66.06 cfs 17.497 afReach 40R: South Drainage Outflow=66.06 cfs 17.497 af Inflow=7.19 cfs 6.650 afReach 42.2R: Southeast Outflow=7.19 cfs 6.650 af Inflow=56.50 cfs 10.205 afReach 44R: Southwest Outflow=56.50 cfs 10.205 af Avg. Flow Depth=0.45' Max Vel=4.92 fps Inflow=9.69 cfs 0.633 afReach 46uR: South Swale - at East n=0.025 L=34.0' S=0.0294 '/' Capacity=11.72 cfs Outflow=9.68 cfs 0.633 af Inflow=8.53 cfs 1.414 afReach 48R: Developed Area To Wetland 4 Outflow=8.53 cfs 1.414 af Inflow=95.88 cfs 29.785 afReach 50R: Bluff Creek Drainage Outflow=95.88 cfs 29.785 af Peak Elev=896.46' Storage=136,788 cf Inflow=56.21 cfs 7.938 afPond 21P: Northwest Basin w Filtration Primary=13.74 cfs 7.533 af Secondary=0.00 cfs 0.000 af Outflow=13.74 cfs 7.533 af Peak Elev=919.61' Storage=33,581 cf Inflow=38.10 cfs 2.415 afPond 25P: West-North w Filtration Outflow=15.53 cfs 2.415 af Peak Elev=914.55' Storage=71,314 cf Inflow=35.44 cfs 2.711 afPond 28P: Avienda Pkwy Surface Basin Outflow=4.78 cfs 2.711 af Peak Elev=925.60' Storage=10,319 cf Inflow=6.02 cfs 0.420 afPond 31P: West-Central Surface Basin w Outflow=1.02 cfs 0.420 af Peak Elev=921.96' Storage=52,699 cf Inflow=32.52 cfs 2.407 afPond 33P: Wetland 3 Primary=3.55 cfs 2.359 af Secondary=0.58 cfs 0.048 af Outflow=4.13 cfs 2.407 af Peak Elev=909.22' Storage=0.209 af Inflow=14.25 cfs 3.160 afPond 34P: West - South (existing) Outflow=7.46 cfs 3.160 af Peak Elev=880.40' Storage=103,615 cf Inflow=55.59 cfs 6.406 afPond 41.3P: South-West Temp Basin Primary=3.54 cfs 2.124 af Secondary=23.45 cfs 4.281 af Outflow=26.99 cfs 6.405 af Peak Elev=884.70' Storage=1,162 cf Inflow=30.63 cfs 3.453 afPond 44P: Wetland 4 Outflow=30.60 cfs 3.452 af Peak Elev=890.80' Storage=14,198 cf Inflow=19.27 cfs 1.246 afPond 46P: Triangle Basin Primary=8.79 cfs 1.242 af Secondary=0.59 cfs 0.004 af Outflow=9.38 cfs 1.246 af MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 371HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Peak Elev=914.95' Storage=23,896 cf Inflow=22.44 cfs 1.414 afPond 47P: Bluff Creek - West Basin - 60" Outflow=8.53 cfs 1.414 af Peak Elev=899.94' Storage=121,365 cf Inflow=62.96 cfs 3.773 afPond 48P: Bluff Creek - East Basin Outflow=2.39 cfs 3.773 af Peak Elev=904.50' Storage=5,444 cf Inflow=35.39 cfs 3.599 afPond 52P: South-Center Temp Basin Outflow=34.59 cfs 3.599 af Peak Elev=883.91' Storage=113,230 cf Inflow=28.36 cfs 6.356 afPond 54P: South-East Temp Basin Primary=1.80 cfs 5.831 af Secondary=1.00 cfs 0.524 af Outflow=2.80 cfs 6.355 af Total Runoff Area = 78.187 ac Runoff Volume = 30.193 af Average Runoff Depth = 4.63" 86.61% Pervious = 67.722 ac 13.39% Impervious = 10.465 ac MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 372HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 13.1S: Front Yards - North Rowhomes Runoff = 4.10 cfs @ 12.07 hrs, Volume= 0.193 af, Depth= 5.07" Routed to Pond 28P : Avienda Pkwy Surface Basin NOT UPDATED Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Area (sf) CN Description 19,930 80 >75% Grass cover, Good, HSG D 19,930 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 5.0 Direct Entry, Subcatchment 13.1S: Front Yards - North Rowhomes Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)4 3 2 1 0 MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Runoff Area=19,930 sf Runoff Volume=0.193 af Runoff Depth=5.07" Tc=5.0 min CN=80 4.10 cfs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 373HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 13.2S: Front Yards - South Rowhomes Runoff = 4.36 cfs @ 12.07 hrs, Volume= 0.206 af, Depth= 5.07" Routed to Pond 47P : Bluff Creek - West Basin - 60" PIPE Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Area (sf) CN Description 21,220 80 >75% Grass cover, Good, HSG D 21,220 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 5.0 Direct Entry, Subcatchment 13.2S: Front Yards - South Rowhomes Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)4 3 2 1 0 MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Runoff Area=21,220 sf Runoff Volume=0.206 af Runoff Depth=5.07" Tc=5.0 min CN=80 4.36 cfs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 374HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 16oS: East Offsite Runoff = 1.26 cfs @ 12.07 hrs, Volume= 0.065 af, Depth= 6.70" Routed to Pond 48P : Bluff Creek - East Basin Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Area (sf) CN Description 1,184 80 >75% Grass cover, Good, HSG D 3,885 98 Paved parking, HSG D 5,069 94 Weighted Average 1,184 23.36% Pervious Area 3,885 76.64% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 5.0 Direct Entry, Subcatchment 16oS: East Offsite Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)1 0 MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Runoff Area=5,069 sf Runoff Volume=0.065 af Runoff Depth=6.70" Tc=5.0 min CN=94 1.26 cfs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 375HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 21S: Northwest Runoff = 38.92 cfs @ 12.20 hrs, Volume= 2.812 af, Depth= 5.19" Routed to Pond 21P : Northwest Basin w Filtration Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Area (sf) CN Description 264,275 80 >75% Grass cover, Good, HSG D 19,020 98 Unconnected roofs, HSG D 283,295 81 Weighted Average 264,275 93.29% Pervious Area 19,020 6.71% Impervious Area 19,020 100.00% Unconnected Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 10.3 100 0.0200 0.16 Sheet Flow, Grass: Short n= 0.150 P2= 2.87" 3.7 190 0.0150 0.86 Shallow Concentrated Flow, Short Grass Pasture Kv= 7.0 fps 0.9 150 0.1470 2.68 Shallow Concentrated Flow, Short Grass Pasture Kv= 7.0 fps 14.9 440 Total Subcatchment 21S: Northwest Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)42 40 38 36 34 32 30 28 26 24 22 20 18 16 14 12 10 8 6 4 2 0 MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Runoff Area=283,295 sf Runoff Volume=2.812 af Runoff Depth=5.19" Flow Length=440' Tc=14.9 min CN=81 38.92 cfs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 376HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 22oS: From Lyman Runoff = 2.08 cfs @ 12.07 hrs, Volume= 0.098 af, Depth= 4.85" Routed to Reach 21R : Wetland 6 Lower Reach Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Area (sf) CN Description 10,548 78 Meadow, non-grazed, HSG D 10,548 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 2.1 57 0.3330 0.44 Sheet Flow, Grass: Short n= 0.150 P2= 2.87" 2.9 Direct Entry, Make up to 5 minutes 5.0 57 Total Subcatchment 22oS: From Lyman Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)2 1 0 MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Runoff Area=10,548 sf Runoff Volume=0.098 af Runoff Depth=4.85" Flow Length=57' Slope=0.3330 '/' Tc=5.0 min CN=78 2.08 cfs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 377HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 22S: Direct to Wetland 6 Runoff = 8.57 cfs @ 12.07 hrs, Volume= 0.405 af, Depth= 5.07" Routed to Reach 21R : Wetland 6 Lower Reach Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Area (sf) CN Description 41,685 80 >75% Grass cover, Good, HSG D 41,685 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 5.0 Direct Entry, Subcatchment 22S: Direct to Wetland 6 Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)9 8 7 6 5 4 3 2 1 0 MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Runoff Area=41,685 sf Runoff Volume=0.405 af Runoff Depth=5.07" Tc=5.0 min CN=80 8.57 cfs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 378HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 25S: West North Runoff = 38.10 cfs @ 12.13 hrs, Volume= 2.415 af, Depth= 6.34" Routed to Pond 25P : West-North w Filtration Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Area (sf) CN Description 81,685 80 >75% Grass cover, Good, HSG D 99,930 98 Paved parking, HSG D 17,435 98 Unconnected roofs, HSG D 199,050 91 Weighted Average 81,685 41.04% Pervious Area 117,365 58.96% Impervious Area 17,435 14.86% Unconnected Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 10.0 Direct Entry, Subcatchment 25S: West North Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)42 40 38 36 34 32 30 28 26 24 22 20 18 16 14 12 10 8 6 4 2 0 MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Runoff Area=199,050 sf Runoff Volume=2.415 af Runoff Depth=6.34" Tc=10.0 min CN=91 38.10 cfs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 379HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 28S: Avienda Pkwy Runoff = 33.28 cfs @ 12.20 hrs, Volume= 2.459 af, Depth= 5.65" Routed to Pond 28P : Avienda Pkwy Surface Basin NOT UPDATED Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Area (sf) CN Description 162,665 80 >75% Grass cover, Good, HSG D 64,980 98 Paved roads w/curbs & sewers, HSG D 227,645 85 Weighted Average 162,665 71.46% Pervious Area 64,980 28.54% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 15.0 Direct Entry, Subcatchment 28S: Avienda Pkwy Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)36 34 32 30 28 26 24 22 20 18 16 14 12 10 8 6 4 2 0 MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Runoff Area=227,645 sf Runoff Volume=2.459 af Runoff Depth=5.65" Tc=15.0 min CN=85 33.28 cfs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 380HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 29oS: North Offsite Runoff = 1.23 cfs @ 12.07 hrs, Volume= 0.059 af, Depth= 5.65" Routed to Pond 28P : Avienda Pkwy Surface Basin NOT UPDATED Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Area (sf) CN Description 4,076 80 >75% Grass cover, Good, HSG D 1,391 98 Paved parking, HSG D 5,467 85 Weighted Average 4,076 74.56% Pervious Area 1,391 25.44% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 5.0 Direct Entry, Subcatchment 29oS: North Offsite Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)1 0 MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Runoff Area=5,467 sf Runoff Volume=0.059 af Runoff Depth=5.65" Tc=5.0 min CN=85 1.23 cfs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 381HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 31S: West Central Runoff = 6.02 cfs @ 12.17 hrs, Volume= 0.420 af, Depth= 5.76" Routed to Pond 31P : West-Central Surface Basin w Filtration Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Area (sf) CN Description 24,670 80 >75% Grass cover, Good, HSG D 9,870 98 Unconnected roofs, HSG D * 3,610 98 Connected roofs, HSG D 38,150 86 Weighted Average 24,670 64.67% Pervious Area 13,480 35.33% Impervious Area 9,870 73.22% Unconnected Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 10.3 100 0.0200 0.16 Sheet Flow, Grass: Short n= 0.150 P2= 2.87" 2.9 245 0.0410 1.42 Shallow Concentrated Flow, Short Grass Pasture Kv= 7.0 fps 13.2 345 Total Subcatchment 31S: West Central Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)6 5 4 3 2 1 0 MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Runoff Area=38,150 sf Runoff Volume=0.420 af Runoff Depth=5.76" Flow Length=345' Tc=13.2 min CN=86 6.02 cfs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 382HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 33oS: Offsite West - North Runoff = 21.55 cfs @ 12.10 hrs, Volume= 1.150 af, Depth= 5.19" Routed to Pond 33P : Wetland 3 Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Area (sf) CN Adj Description 20,000 98 Unconnected roofs, HSG D 71,000 80 >75% Grass cover, Good, HSG D * 12,720 96 Wetland, Good, HSG D 12,145 58 Meadow, non-grazed, HSG B 115,865 83 81 Weighted Average, UI Adjusted 95,865 82.74% Pervious Area 20,000 17.26% Impervious Area 20,000 100.00% Unconnected Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 5.0 25 0.0200 0.08 Sheet Flow, Grass: Dense n= 0.240 P2= 2.87" 2.3 406 0.0390 2.96 Shallow Concentrated Flow, Grassed Waterway Kv= 15.0 fps 7.3 431 Total Subcatchment 33oS: Offsite West - North Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Runoff Area=115,865 sf Runoff Volume=1.150 af Runoff Depth=5.19" Flow Length=431' Tc=7.3 min UI Adjusted CN=81 21.55 cfs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 383HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 33S: Direct to Wetland 3 Runoff = 12.46 cfs @ 12.16 hrs, Volume= 0.836 af, Depth= 5.88" Routed to Pond 33P : Wetland 3 Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Area (sf) CN Description * 29,365 96 Wetland, Good, HSG D 43,435 80 >75% Grass cover, Good, HSG D 1,585 98 Unconnected roofs, HSG D 74,385 87 Weighted Average 72,800 97.87% Pervious Area 1,585 2.13% Impervious Area 1,585 100.00% Unconnected Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 12.0 Direct Entry, Subcatchment 33S: Direct to Wetland 3 Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)13 12 11 10 9 8 7 6 5 4 3 2 1 0 MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Runoff Area=74,385 sf Runoff Volume=0.836 af Runoff Depth=5.88" Tc=12.0 min CN=87 12.46 cfs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 384HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 34dS: Offsite West Direct Runoff = 4.40 cfs @ 12.13 hrs, Volume= 0.268 af, Depth= 5.53" Routed to Reach 35R : Direct Runoff Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Area (sf) CN Description 19,655 80 >75% Grass cover, Good, HSG D 5,690 98 Paved roads w/curbs & sewers, HSG D 25,345 84 Weighted Average 19,655 77.55% Pervious Area 5,690 22.45% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 10.0 Direct Entry, Subcatchment 34dS: Offsite West Direct Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)4 3 2 1 0 MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Runoff Area=25,345 sf Runoff Volume=0.268 af Runoff Depth=5.53" Tc=10.0 min CN=84 4.40 cfs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 385HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 34oS: Offsite to West South Runoff = 4.39 cfs @ 12.20 hrs, Volume= 0.319 af, Depth= 5.07" Routed to Pond 34P : West - South (existing) Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Area (sf) CN Description 32,845 80 >75% Grass cover, Good, HSG D 32,845 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 15.0 Direct Entry, Subcatchment 34oS: Offsite to West South Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)4 3 2 1 0 MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Runoff Area=32,845 sf Runoff Volume=0.319 af Runoff Depth=5.07" Tc=15.0 min CN=80 4.39 cfs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 386HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 34S: West Woods Runoff = 7.22 cfs @ 12.16 hrs, Volume= 0.482 af, Depth= 2.39" Routed to Pond 34P : West - South (existing) Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Area (sf) CN Description 105,570 55 Woods, Good, HSG B 105,570 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 8.4 50 0.0600 0.10 Sheet Flow, Woods: Light underbrush n= 0.400 P2= 2.87" 2.7 218 0.0710 1.33 Shallow Concentrated Flow, Woodland Kv= 5.0 fps 11.1 268 Total Subcatchment 34S: West Woods Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)8 7 6 5 4 3 2 1 0 MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Runoff Area=105,570 sf Runoff Volume=0.482 af Runoff Depth=2.39" Flow Length=268' Tc=11.1 min CN=55 7.22 cfs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 387HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 35S: Southwest Runoff = 8.89 cfs @ 12.26 hrs, Volume= 0.754 af, Depth= 2.39" Routed to Reach 35R : Direct Runoff Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Area (sf) CN Description 165,040 55 Woods, Good, HSG B 165,040 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 16.0 75 0.0270 0.08 Sheet Flow, Woods: Light underbrush n= 0.400 P2= 2.87" 2.3 195 0.0820 1.43 Shallow Concentrated Flow, Woodland Kv= 5.0 fps 18.3 270 Total Subcatchment 35S: Southwest Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)9 8 7 6 5 4 3 2 1 0 MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Runoff Area=165,040 sf Runoff Volume=0.754 af Runoff Depth=2.39" Flow Length=270' Tc=18.3 min CN=55 8.89 cfs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 388HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 36oS: Southwest Offsite Runoff = 0.41 cfs @ 12.07 hrs, Volume= 0.022 af, Depth= 7.17" Routed to Reach 30R : West Drainage Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Area (sf) CN Description 1,628 98 Paved parking, HSG D 1,628 100.00% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 5.0 Direct Entry, Subcatchment 36oS: Southwest Offsite Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.46 0.44 0.42 0.4 0.38 0.36 0.34 0.32 0.3 0.28 0.26 0.24 0.22 0.2 0.18 0.16 0.14 0.12 0.1 0.08 0.06 0.04 0.02 0 MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Runoff Area=1,628 sf Runoff Volume=0.022 af Runoff Depth=7.17" Tc=5.0 min CN=98 0.41 cfs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 389HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 40.4S: So. Villas Private Drive Runoff = 10.71 cfs @ 12.17 hrs, Volume= 0.757 af, Depth= 6.23" Routed to Pond 52P : South-Center Temp Basin Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Area (sf) CN Description 29,980 80 >75% Grass cover, Good, HSG D 33,565 98 Paved parking, HSG D 63,545 90 Weighted Average 29,980 47.18% Pervious Area 33,565 52.82% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 8.3 70 0.0430 0.14 Sheet Flow, Lawn Grass: Dense n= 0.240 P2= 2.87" 4.7 775 0.0180 2.72 Shallow Concentrated Flow, Street Flow Paved Kv= 20.3 fps 13.0 845 Total Subcatchment 40.4S: So. Villas Private Drive Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)11 10 9 8 7 6 5 4 3 2 1 0 MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Runoff Area=63,545 sf Runoff Volume=0.757 af Runoff Depth=6.23" Flow Length=845' Tc=13.0 min CN=90 10.71 cfs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 390HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 41.3S: South-West Runoff = 27.18 cfs @ 12.12 hrs, Volume= 1.561 af, Depth= 5.19" Routed to Pond 41.3P : South-West Temp Basin Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Area (sf) CN Description 149,020 80 >75% Grass cover, Good, HSG D * 8,290 100 Water 157,310 81 Weighted Average 149,020 94.73% Pervious Area 8,290 5.27% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 7.5 100 0.0450 0.22 Sheet Flow, Grass: Short n= 0.150 P2= 2.87" 1.0 90 0.0450 1.48 Shallow Concentrated Flow, Short Grass Pasture Kv= 7.0 fps 0.4 95 0.3333 4.04 Shallow Concentrated Flow, Short Grass Pasture Kv= 7.0 fps 8.9 285 Total Subcatchment 41.3S: South-West Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)30 28 26 24 22 20 18 16 14 12 10 8 6 4 2 0 MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Runoff Area=157,310 sf Runoff Volume=1.561 af Runoff Depth=5.19" Flow Length=285' Tc=8.9 min CN=81 27.18 cfs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 391HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 42.1S: South Fringe Runoff = 4.52 cfs @ 12.07 hrs, Volume= 0.213 af, Depth= 5.07" Routed to Reach 42.2R : Southeast Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Area (sf) CN Description 21,960 80 >75% Grass cover, Good, HSG D 21,960 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 5.0 Direct Entry, Subcatchment 42.1S: South Fringe Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)5 4 3 2 1 0 MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Runoff Area=21,960 sf Runoff Volume=0.213 af Runoff Depth=5.07" Tc=5.0 min CN=80 4.52 cfs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 392HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 42.2S: Southeast Fringe Runoff = 1.75 cfs @ 12.07 hrs, Volume= 0.082 af, Depth= 4.85" Routed to Reach 42.2R : Southeast Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Area (sf) CN Description 8,870 78 Meadow, non-grazed, HSG D 8,870 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 5.0 Direct Entry, Subcatchment 42.2S: Southeast Fringe Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)1 0 MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Runoff Area=8,870 sf Runoff Volume=0.082 af Runoff Depth=4.85" Tc=5.0 min CN=78 1.75 cfs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 393HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 43.1S: East Woods Runoff = 8.28 cfs @ 12.22 hrs, Volume= 0.642 af, Depth= 2.39" Routed to Reach 40R : South Drainage Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Area (sf) CN Description 140,400 55 Woods, Good, HSG B 140,400 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 11.1 75 0.0670 0.11 Sheet Flow, Woods: Light underbrush n= 0.400 P2= 2.87" 4.1 455 0.1380 1.86 Shallow Concentrated Flow, Woodland Kv= 5.0 fps 15.2 530 Total Subcatchment 43.1S: East Woods Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)9 8 7 6 5 4 3 2 1 0 MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Runoff Area=140,400 sf Runoff Volume=0.642 af Runoff Depth=2.39" Flow Length=530' Tc=15.2 min CN=55 8.28 cfs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 394HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 43.2S: Northeast Woods Runoff = 3.98 cfs @ 12.29 hrs, Volume= 0.348 af, Depth= 2.39" Routed to Reach 44R : Southwest Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Area (sf) CN Description 76,080 55 Woods, Good, HSG B 76,080 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 14.2 100 0.0650 0.12 Sheet Flow, Woods: Light underbrush n= 0.400 P2= 2.87" 5.3 523 0.1080 1.64 Shallow Concentrated Flow, Woodland Kv= 5.0 fps 19.5 623 Total Subcatchment 43.2S: Northeast Woods Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)4 3 2 1 0 MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Runoff Area=76,080 sf Runoff Volume=0.348 af Runoff Depth=2.39" Flow Length=623' Tc=19.5 min CN=55 3.98 cfs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 395HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 44S: North Woods Runoff = 23.03 cfs @ 12.29 hrs, Volume= 2.039 af, Depth= 2.39" Routed to Pond 44P : Wetland 4 Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Area (sf) CN Description 446,125 55 Woods, Good, HSG B 446,125 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 20.0 Direct Entry, Subcatchment 44S: North Woods Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Runoff Area=446,125 sf Runoff Volume=2.039 af Runoff Depth=2.39" Tc=20.0 min CN=55 23.03 cfs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 396HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 46S: Direct to Tri. Basin Runoff = 9.59 cfs @ 12.15 hrs, Volume= 0.613 af, Depth= 5.07" Routed to Pond 46P : Triangle Basin Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Area (sf) CN Description 63,170 80 >75% Grass cover, Good, HSG D 63,170 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 3.4 40 0.0500 0.19 Sheet Flow, Grass: Short n= 0.150 P2= 2.87" 8.1 715 0.0440 1.47 Shallow Concentrated Flow, Short Grass Pasture Kv= 7.0 fps 11.5 755 Total Subcatchment 46S: Direct to Tri. Basin Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)10 9 8 7 6 5 4 3 2 1 0 MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Runoff Area=63,170 sf Runoff Volume=0.613 af Runoff Depth=5.07" Flow Length=755' Tc=11.5 min CN=80 9.59 cfs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 397HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 46uS: Rear Yards of South Townhomes Runoff = 9.69 cfs @ 12.15 hrs, Volume= 0.633 af, Depth= 5.76" Routed to Reach 46uR : South Swale - at East Property Line of THs Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Area (sf) CN Description 38,455 80 >75% Grass cover, Good, HSG D 19,000 98 Unconnected roofs, HSG D 57,455 86 Weighted Average 38,455 66.93% Pervious Area 19,000 33.07% Impervious Area 19,000 100.00% Unconnected Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 3.4 40 0.0500 0.19 Sheet Flow, Grass: Short n= 0.150 P2= 2.87" 8.1 715 0.0440 1.47 Shallow Concentrated Flow, Short Grass Pasture Kv= 7.0 fps 11.5 755 Total Subcatchment 46uS: Rear Yards of South Townhomes Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)10 9 8 7 6 5 4 3 2 1 0 MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Runoff Area=57,455 sf Runoff Volume=0.633 af Runoff Depth=5.76" Flow Length=755' Tc=11.5 min CN=86 9.69 cfs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 398HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 47S: Bluff Creek Pkwy - West Runoff = 19.33 cfs @ 12.13 hrs, Volume= 1.208 af, Depth= 6.11" Routed to Pond 47P : Bluff Creek - West Basin - 60" PIPE Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Area (sf) CN Description * 52,305 80 >75% Grass cover, Good, HSG D 51,075 98 Paved roads w/curbs & sewers, HSG D 103,380 89 Weighted Average 52,305 50.59% Pervious Area 51,075 49.41% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 10.0 Direct Entry, Subcatchment 47S: Bluff Creek Pkwy - West Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Runoff Area=103,380 sf Runoff Volume=1.208 af Runoff Depth=6.11" Tc=10.0 min CN=89 19.33 cfs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 399HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 48S: Bluff Creek Pkwy - East Runoff = 32.63 cfs @ 12.13 hrs, Volume= 2.085 af, Depth= 6.46" Routed to Pond 48P : Bluff Creek - East Basin Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Area (sf) CN Description * 73,780 84 >75% Grass cover, Good, HSG D 94,920 98 Paved roads w/curbs & sewers, HSG D 168,700 92 Weighted Average 73,780 43.73% Pervious Area 94,920 56.27% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 10.0 Direct Entry, Subcatchment 48S: Bluff Creek Pkwy - East Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)36 34 32 30 28 26 24 22 20 18 16 14 12 10 8 6 4 2 0 MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Runoff Area=168,700 sf Runoff Volume=2.085 af Runoff Depth=6.46" Tc=10.0 min CN=92 32.63 cfs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 400HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 52S: South - Center Runoff = 29.26 cfs @ 12.36 hrs, Volume= 2.842 af, Depth= 5.07" Routed to Pond 52P : South-Center Temp Basin Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Area (sf) CN Description 292,770 80 >75% Grass cover, Good, HSG D 292,770 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 13.7 100 0.0100 0.12 Sheet Flow, Grass: Short n= 0.150 P2= 2.87" 13.3 560 0.0100 0.70 Shallow Concentrated Flow, Short Grass Pasture Kv= 7.0 fps 27.0 660 Total Subcatchment 52S: South - Center Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)32 30 28 26 24 22 20 18 16 14 12 10 8 6 4 2 0 MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Runoff Area=292,770 sf Runoff Volume=2.842 af Runoff Depth=5.07" Flow Length=660' Slope=0.0100 '/' Tc=27.0 min CN=80 29.26 cfs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 401HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 54S: South - East Runoff = 26.28 cfs @ 12.37 hrs, Volume= 2.583 af, Depth= 5.07" Routed to Pond 54P : South-East Temp Basin Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Area (sf) CN Description 266,110 80 >75% Grass cover, Good, HSG D 266,110 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 14.3 168 0.0250 0.20 Sheet Flow, Grass: Short n= 0.150 P2= 2.87" 8.4 250 0.0050 0.49 Shallow Concentrated Flow, Short Grass Pasture Kv= 7.0 fps 5.0 Direct Entry, Pipe flow 27.7 418 Total Subcatchment 54S: South - East Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)28 26 24 22 20 18 16 14 12 10 8 6 4 2 0 MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Runoff Area=266,110 sf Runoff Volume=2.583 af Runoff Depth=5.07" Flow Length=418' Tc=27.7 min CN=80 26.28 cfs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 402HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 55S: Direct to Bluff Creek - East Basin Runoff = 34.38 cfs @ 12.07 hrs, Volume= 1.623 af, Depth= 5.07" Routed to Pond 48P : Bluff Creek - East Basin Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Area (sf) CN Description 167,215 80 >75% Grass cover, Good, HSG D 167,215 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 5.0 Direct Entry, Subcatchment 55S: Direct to Bluff Creek - East Basin Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)38 36 34 32 30 28 26 24 22 20 18 16 14 12 10 8 6 4 2 0 MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Runoff Area=167,215 sf Runoff Volume=1.623 af Runoff Depth=5.07" Tc=5.0 min CN=80 34.38 cfs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 403HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Reach 20R: Northwest Drainage [40] Hint: Not Described (Outflow=Inflow) Inflow Area = 18.081 ac, 25.74% Impervious, Inflow Depth = 5.33" for 100y 24hr event Inflow = 14.53 cfs @ 13.53 hrs, Volume= 8.035 af Outflow = 14.53 cfs @ 13.53 hrs, Volume= 8.035 af, Atten= 0%, Lag= 0.0 min Routed to Reach 50R : Bluff Creek Drainage Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Reach 20R: Northwest Drainage Inflow Outflow Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 Inflow Area=18.081 ac 14.53 cfs 14.53 cfs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 404HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Reach 21R: Wetland 6 Lower Reach Inflow Area = 18.081 ac, 25.74% Impervious, Inflow Depth = 5.33" for 100y 24hr event Inflow = 14.54 cfs @ 13.51 hrs, Volume= 8.035 af Outflow = 14.53 cfs @ 13.53 hrs, Volume= 8.035 af, Atten= 0%, Lag= 0.9 min Routed to Reach 20R : Northwest Drainage Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Max. Velocity= 1.00 fps, Min. Travel Time= 3.1 min Avg. Velocity = 0.24 fps, Avg. Travel Time= 12.8 min Peak Storage= 2,722 cf @ 13.53 hrs Average Depth at Peak Storage= 0.62' , Surface Width= 46.83' Bank-Full Depth= 5.99' Flow Area= 570.1 sf, Capacity= 3,072.14 cfs Custom cross-section, Length= 187.0' Slope= 0.0053 '/' (102 Elevation Intervals) Constant n= 0.050 Scattered brush, heavy weeds Inlet Invert= 885.00', Outlet Invert= 884.00' ‡ Offset Elevation Chan.Depth (feet) (feet) (feet) 0.00 890.40 0.00 43.10 886.55 3.85 85.60 884.41 5.99 126.20 885.14 5.26 145.10 890.40 0.00 Depth End Area Perim. Width Storage Discharge (feet) (sq-ft) (feet) (feet) (cubic-feet) (cfs) 0.00 0.0 0.0 0.0 0 0.00 0.73 20.1 55.1 55.1 3,761 22.32 2.14 121.1 88.4 88.2 22,648 324.64 5.99 570.1 146.1 145.1 106,618 3,072.14 MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 405HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Reach 21R: Wetland 6 Lower Reach Inflow Outflow Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 Inflow Area=18.081 ac Avg. Flow Depth=0.62' Max Vel=1.00 fps n=0.050 L=187.0' S=0.0053 '/' Capacity=3,072.14 cfs 14.54 cfs 14.53 cfs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 406HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Reach 30R: West Drainage [40] Hint: Not Described (Outflow=Inflow) Inflow Area = 12.829 ac, 7.58% Impervious, Inflow Depth = 3.98" for 100y 24hr event Inflow = 18.43 cfs @ 12.25 hrs, Volume= 4.253 af Outflow = 18.43 cfs @ 12.25 hrs, Volume= 4.253 af, Atten= 0%, Lag= 0.0 min Routed to Reach 50R : Bluff Creek Drainage Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Reach 30R: West Drainage Inflow Outflow Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 Inflow Area=12.829 ac 18.43 cfs 18.43 cfs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 407HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Reach 35R: Direct Runoff [40] Hint: Not Described (Outflow=Inflow) Inflow Area = 4.371 ac, 2.99% Impervious, Inflow Depth = 2.81" for 100y 24hr event Inflow = 11.63 cfs @ 12.22 hrs, Volume= 1.022 af Outflow = 11.63 cfs @ 12.22 hrs, Volume= 1.022 af, Atten= 0%, Lag= 0.0 min Routed to Reach 30R : West Drainage Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Reach 35R: Direct Runoff Inflow Outflow Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)13 12 11 10 9 8 7 6 5 4 3 2 1 0 Inflow Area=4.371 ac 11.63 cfs 11.63 cfs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 408HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Reach 40R: South Drainage [40] Hint: Not Described (Outflow=Inflow) Inflow Area = 47.277 ac, 10.23% Impervious, Inflow Depth = 4.44" for 100y 24hr event Inflow = 66.06 cfs @ 12.30 hrs, Volume= 17.497 af Outflow = 66.06 cfs @ 12.30 hrs, Volume= 17.497 af, Atten= 0%, Lag= 0.0 min Routed to Reach 50R : Bluff Creek Drainage Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Reach 40R: South Drainage Inflow Outflow Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)70 65 60 55 50 45 40 35 30 25 20 15 10 5 0 Inflow Area=47.277 ac 66.06 cfs 66.06 cfs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 409HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Reach 42.2R: Southeast [40] Hint: Not Described (Outflow=Inflow) Inflow Area = 14.645 ac, 15.49% Impervious, Inflow Depth = 5.45" for 100y 24hr event Inflow = 7.19 cfs @ 12.07 hrs, Volume= 6.650 af Outflow = 7.19 cfs @ 12.07 hrs, Volume= 6.650 af, Atten= 0%, Lag= 0.0 min Routed to Reach 40R : South Drainage Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Reach 42.2R: Southeast Inflow Outflow Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)8 7 6 5 4 3 2 1 0 Inflow Area=14.645 ac 7.19 cfs 7.19 cfs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 410HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Reach 44R: Southwest [40] Hint: Not Described (Outflow=Inflow) Inflow Area = 29.409 ac, 8.74% Impervious, Inflow Depth = 4.16" for 100y 24hr event Inflow = 56.50 cfs @ 12.36 hrs, Volume= 10.205 af Outflow = 56.50 cfs @ 12.36 hrs, Volume= 10.205 af, Atten= 0%, Lag= 0.0 min Routed to Reach 40R : South Drainage Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Reach 44R: Southwest Inflow Outflow Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)60 55 50 45 40 35 30 25 20 15 10 5 0 Inflow Area=29.409 ac 56.50 cfs 56.50 cfs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 411HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Reach 46uR: South Swale - at East Property Line of THs Inflow Area = 1.319 ac, 33.07% Impervious, Inflow Depth = 5.76" for 100y 24hr event Inflow = 9.69 cfs @ 12.15 hrs, Volume= 0.633 af Outflow = 9.68 cfs @ 12.15 hrs, Volume= 0.633 af, Atten= 0%, Lag= 0.1 min Routed to Pond 46P : Triangle Basin Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Max. Velocity= 4.92 fps, Min. Travel Time= 0.1 min Avg. Velocity = 1.23 fps, Avg. Travel Time= 0.5 min Peak Storage= 67 cf @ 12.15 hrs Average Depth at Peak Storage= 0.45' , Surface Width= 5.71' Bank-Full Depth= 0.50' Flow Area= 2.3 sf, Capacity= 11.72 cfs 3.00' x 0.50' deep channel, n= 0.025 Short grass Side Slope Z-value= 3.0 '/' Top Width= 6.00' Length= 34.0' Slope= 0.0294 '/' Inlet Invert= 894.00', Outlet Invert= 893.00' ‡ Reach 46uR: South Swale - at East Property Line of THs Inflow Outflow Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)10 9 8 7 6 5 4 3 2 1 0 Inflow Area=1.319 ac Avg. Flow Depth=0.45' Max Vel=4.92 fps n=0.025 L=34.0' S=0.0294 '/' Capacity=11.72 cfs 9.69 cfs 9.68 cfs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 412HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Reach 48R: Developed Area To Wetland 4 [40] Hint: Not Described (Outflow=Inflow) Inflow Area = 2.860 ac, 40.99% Impervious, Inflow Depth = 5.93" for 100y 24hr event Inflow = 8.53 cfs @ 12.36 hrs, Volume= 1.414 af Outflow = 8.53 cfs @ 12.36 hrs, Volume= 1.414 af, Atten= 0%, Lag= 0.0 min Routed to Pond 44P : Wetland 4 Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Reach 48R: Developed Area To Wetland 4 Inflow Outflow Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)9 8 7 6 5 4 3 2 1 0 Inflow Area=2.860 ac 8.53 cfs 8.53 cfs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 413HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Reach 50R: Bluff Creek Drainage [40] Hint: Not Described (Outflow=Inflow) Inflow Area = 78.187 ac, 13.39% Impervious, Inflow Depth = 4.57" for 100y 24hr event Inflow = 95.88 cfs @ 12.30 hrs, Volume= 29.785 af Outflow = 95.88 cfs @ 12.30 hrs, Volume= 29.785 af, Atten= 0%, Lag= 0.0 min Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Reach 50R: Bluff Creek Drainage Inflow Outflow Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)105 100 95 90 85 80 75 70 65 60 55 50 45 40 35 30 25 20 15 10 5 0 Inflow Area=78.187 ac 95.88 cfs 95.88 cfs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 414HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Pond 21P: Northwest Basin w Filtration Inflow Area = 16.882 ac, 27.57% Impervious, Inflow Depth = 5.64" for 100y 24hr event Inflow = 56.21 cfs @ 12.20 hrs, Volume= 7.938 af Outflow = 13.74 cfs @ 13.60 hrs, Volume= 7.533 af, Atten= 76%, Lag= 83.8 min Primary = 13.74 cfs @ 13.60 hrs, Volume= 7.533 af Routed to Reach 21R : Wetland 6 Lower Reach Secondary = 0.00 cfs @ 0.00 hrs, Volume= 0.000 af Routed to Reach 21R : Wetland 6 Lower Reach Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 896.46' @ 13.60 hrs Surf.Area= 39,671 sf Storage= 136,788 cf Plug-Flow detention time= 231.7 min calculated for 7.533 af (95% of inflow) Center-of-Mass det. time= 185.4 min ( 1,071.1 - 885.7 ) Volume Invert Avail.Storage Storage Description #1 892.50' 158,719 cf Open Pond (Prismatic) Listed below (Recalc) Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 892.50 8,125 0 0 892.54 8,180 326 326 892.55 30,215 192 518 893.00 31,280 13,836 14,354 894.00 33,630 32,455 46,809 895.00 36,050 34,840 81,649 896.00 38,530 37,290 118,939 897.00 41,030 39,780 158,719 Device Routing Invert Outlet Devices #1 Primary 887.86'18.0" Round Culvert L= 30.0' RCP, sq.cut end projecting, Ke= 0.500 Inlet / Outlet Invert= 887.86' / 887.71' S= 0.0050 '/' Cc= 0.900 n= 0.011 Concrete pipe, straight & clean, Flow Area= 1.77 sf #2 Device 1 889.70'8.0" Vert. Orifice - Underdrain C= 0.600 Limited to weir flow at low heads #3 Device 1 893.10'18.0" Vert. Orifice - Overflow C= 0.600 Limited to weir flow at low heads #4 Device 2 892.50'0.800 in/hr Exfiltration over Surface area from 891.69' - 891.74' Excluded Surface area = 0 sf Phase-In= 0.01' #5 Secondary 896.75'20.0' long x 30.0' breadth Broad-Crested Rectangular Weir Head (feet) 0.20 0.40 0.60 0.80 1.00 1.20 1.40 1.60 Coef. (English) 2.68 2.70 2.70 2.64 2.63 2.64 2.64 2.63 MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 415HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Primary OutFlow Max=13.74 cfs @ 13.60 hrs HW=896.46' TW=885.62' (Dynamic Tailwater) 1=Culvert (Passes 13.74 cfs of 23.83 cfs potential flow) 2=Orifice - Underdrain (Passes 0.00 cfs of 4.26 cfs potential flow) 4=Exfiltration (Exfiltration Controls 0.00 cfs) 3=Orifice - Overflow (Orifice Controls 13.74 cfs @ 7.77 fps) Secondary OutFlow Max=0.00 cfs @ 0.00 hrs HW=892.50' TW=885.00' (Dynamic Tailwater) 5=Broad-Crested Rectangular Weir ( Controls 0.00 cfs) Pond 21P: Northwest Basin w Filtration Inflow Outflow Primary Secondary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)60 55 50 45 40 35 30 25 20 15 10 5 0 Inflow Area=16.882 ac Peak Elev=896.46' Storage=136,788 cf 56.21 cfs 13.74 cfs 13.74 cfs 0.00 cfs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 416HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Pond 25P: West-North w Filtration Inflow Area = 4.570 ac, 58.96% Impervious, Inflow Depth = 6.34" for 100y 24hr event Inflow = 38.10 cfs @ 12.13 hrs, Volume= 2.415 af Outflow = 15.53 cfs @ 12.35 hrs, Volume= 2.415 af, Atten= 59%, Lag= 13.0 min Primary = 15.53 cfs @ 12.35 hrs, Volume= 2.415 af Routed to Pond 21P : Northwest Basin w Filtration Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 919.61' @ 12.35 hrs Surf.Area= 17,854 sf Storage= 33,581 cf Plug-Flow detention time= 65.2 min calculated for 2.415 af (100% of inflow) Center-of-Mass det. time= 65.2 min ( 826.0 - 760.7 ) Volume Invert Avail.Storage Storage Description #1 914.93' 36,108 cf Rock Bed (Prismatic) Listed below (Recalc) 90,520 cf Overall - 249 cf Embedded = 90,271 cf x 40.0% Voids #2 914.94' 249 cf 8.0" Round Pipe Storage Inside #1 L= 714.0' 36,357 cf Total Available Storage Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 914.93 17,854 0 0 920.00 17,854 90,520 90,520 Device Routing Invert Outlet Devices #1 Primary 908.00'18.0" Round Culvert L= 164.0' RCP, sq.cut end projecting, Ke= 0.500 Inlet / Outlet Invert= 908.00' / 905.82' S= 0.0133 '/' Cc= 0.900 n= 0.011 Concrete pipe, straight & clean, Flow Area= 1.77 sf #2 Device 1 912.63'8.0" Vert. Underdrain C= 0.600 Limited to weir flow at low heads #3 Device 1 915.67'18.0" Vert. Overflow C= 0.600 Limited to weir flow at low heads #4 Device 2 914.93'0.800 in/hr Filtration over Surface area Phase-In= 0.01' Primary OutFlow Max=15.53 cfs @ 12.35 hrs HW=919.61' TW=895.13' (Dynamic Tailwater) 1=Culvert (Passes 15.53 cfs of 26.03 cfs potential flow) 2=Underdrain (Passes 0.33 cfs of 4.33 cfs potential flow) 4=Filtration (Exfiltration Controls 0.33 cfs) 3=Overflow (Orifice Controls 15.20 cfs @ 8.60 fps) MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 417HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Pond 25P: West-North w Filtration Inflow Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)42 40 38 36 34 32 30 28 26 24 22 20 18 16 14 12 10 8 6 4 2 0 Inflow Area=4.570 ac Peak Elev=919.61' Storage=33,581 cf 38.10 cfs 15.53 cfs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 418HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Pond 28P: Avienda Pkwy Surface Basin NOT UPDATED [44] Hint: Outlet device #3 is below defined storage Inflow Area = 5.809 ac, 26.23% Impervious, Inflow Depth = 5.60" for 100y 24hr event Inflow = 35.44 cfs @ 12.19 hrs, Volume= 2.711 af Outflow = 4.78 cfs @ 13.23 hrs, Volume= 2.711 af, Atten= 87%, Lag= 62.2 min Primary = 4.78 cfs @ 13.23 hrs, Volume= 2.711 af Routed to Pond 21P : Northwest Basin w Filtration Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 914.55' @ 13.23 hrs Surf.Area= 39,818 sf Storage= 71,314 cf Plug-Flow detention time= 273.7 min calculated for 2.711 af (100% of inflow) Center-of-Mass det. time= 273.8 min ( 1,048.3 - 774.6 ) Volume Invert Avail.Storage Storage Description #1 912.53' 292,399 cf Open Pond (Prismatic) Listed below (Recalc) Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 912.53 30,930 0 0 919.00 59,456 292,399 292,399 Device Routing Invert Outlet Devices #1 Primary 908.15'12.0" Round Culvert L= 159.0' RCP, square edge headwall, Ke= 0.500 Inlet / Outlet Invert= 908.15' / 906.81' S= 0.0084 '/' Cc= 0.900 n= 0.013 Concrete pipe, straight & clean, Flow Area= 0.79 sf #2 Device 1 909.73'12.0" Round Culvert L= 165.0' RCP, square edge headwall, Ke= 0.500 Inlet / Outlet Invert= 909.73' / 908.15' S= 0.0096 '/' Cc= 0.900 n= 0.013 Concrete pipe, straight & clean, Flow Area= 0.79 sf #3 Device 2 912.45'12.0" Round Culvert L= 17.0' RCP, end-section conforming to fill, Ke= 0.500 Inlet / Outlet Invert= 912.45' / 912.37' S= 0.0047 '/' Cc= 0.900 n= 0.013 Concrete pipe, straight & clean, Flow Area= 0.79 sf Primary OutFlow Max=4.78 cfs @ 13.23 hrs HW=914.55' TW=896.39' (Dynamic Tailwater) 1=Culvert (Passes 4.78 cfs of 6.42 cfs potential flow) 2=Culvert (Passes 4.78 cfs of 5.66 cfs potential flow) 3=Culvert (Inlet Controls 4.78 cfs @ 6.08 fps) MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 419HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Pond 28P: Avienda Pkwy Surface Basin NOT UPDATED Inflow Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)38 36 34 32 30 28 26 24 22 20 18 16 14 12 10 8 6 4 2 0 Inflow Area=5.809 ac Peak Elev=914.55' Storage=71,314 cf 35.44 cfs 4.78 cfs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 420HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Pond 31P: West-Central Surface Basin w Filtration Inflow Area = 0.876 ac, 35.33% Impervious, Inflow Depth = 5.76" for 100y 24hr event Inflow = 6.02 cfs @ 12.17 hrs, Volume= 0.420 af Outflow = 1.02 cfs @ 12.79 hrs, Volume= 0.420 af, Atten= 83%, Lag= 37.3 min Primary = 1.02 cfs @ 12.79 hrs, Volume= 0.420 af Routed to Pond 33P : Wetland 3 Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 925.60' @ 12.79 hrs Surf.Area= 7,499 sf Storage= 10,319 cf Plug-Flow detention time= 354.3 min calculated for 0.420 af (100% of inflow) Center-of-Mass det. time= 354.4 min ( 1,126.2 - 771.8 ) Volume Invert Avail.Storage Storage Description #1 924.00' 13,385 cf Surface Basin (Prismatic) Listed below (Recalc) Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 924.00 5,360 0 0 926.00 8,025 13,385 13,385 Device Routing Invert Outlet Devices #1 Primary 920.93'15.0" Round Culvert L= 42.0' RCP, sq.cut end projecting, Ke= 0.500 Inlet / Outlet Invert= 920.93' / 920.80' S= 0.0031 '/' Cc= 0.900 n= 0.011 Concrete pipe, straight & clean, Flow Area= 1.23 sf #2 Device 1 920.93'8.0" Vert. Orifice/Grate - Underdrain C= 0.600 Limited to weir flow at low heads #3 Device 1 925.00'8.0" Vert. Orifice/Grate - Overflow C= 0.600 Limited to weir flow at low heads #4 Device 2 924.00'0.800 in/hr Filtration over Horizontal area above 923.22' Excluded Horizontal area = 0 sf Phase-In= 0.01' Primary OutFlow Max=1.02 cfs @ 12.79 hrs HW=925.60' TW=921.93' (Dynamic Tailwater) 1=Culvert (Passes 1.02 cfs of 11.32 cfs potential flow) 2=Orifice/Grate - Underdrain (Passes 0.14 cfs of 3.22 cfs potential flow) 4=Filtration (Exfiltration Controls 0.14 cfs) 3=Orifice/Grate - Overflow (Orifice Controls 0.88 cfs @ 2.65 fps) MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 421HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Pond 31P: West-Central Surface Basin w Filtration Inflow Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)6 5 4 3 2 1 0 Inflow Area=0.876 ac Peak Elev=925.60' Storage=10,319 cf 6.02 cfs 1.02 cfs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 422HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Pond 33P: Wetland 3 Inflow Area = 5.243 ac, 15.35% Impervious, Inflow Depth = 5.51" for 100y 24hr event Inflow = 32.52 cfs @ 12.11 hrs, Volume= 2.407 af Outflow = 4.13 cfs @ 13.24 hrs, Volume= 2.407 af, Atten= 87%, Lag= 67.8 min Primary = 3.55 cfs @ 13.24 hrs, Volume= 2.359 af Routed to Pond 34P : West - South (existing) Secondary = 0.58 cfs @ 13.24 hrs, Volume= 0.048 af Routed to Reach 30R : West Drainage Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 921.96' @ 13.24 hrs Surf.Area= 66,658 sf Storage= 52,699 cf Plug-Flow detention time= 192.0 min calculated for 2.407 af (100% of inflow) Center-of-Mass det. time= 192.6 min ( 1,026.1 - 833.5 ) Volume Invert Avail.Storage Storage Description #1 920.58' 140,121 cf Custom Stage Data (Prismatic) Listed below (Recalc) Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 920.58 100 0 0 921.00 30,000 6,321 6,321 922.00 68,200 49,100 55,421 923.00 101,200 84,700 140,121 Device Routing Invert Outlet Devices #1 Primary 920.58'12.0" Round Culvert L= 455.0' RCP, end-section conforming to fill, Ke= 0.500 Inlet / Outlet Invert= 920.58' / 911.02' S= 0.0210 '/' Cc= 0.900 n= 0.013 Concrete pipe, straight & clean, Flow Area= 0.79 sf #2 Secondary 921.90'Asymmetrical Weir, C= 3.27 Offset (feet) 0.00 19.00 40.00 50.00 76.00 103.00 Height (feet) 1.50 0.50 0.00 0.00 0.50 1.50 Primary OutFlow Max=3.55 cfs @ 13.24 hrs HW=921.96' TW=908.93' (Dynamic Tailwater) 1=Culvert (Inlet Controls 3.55 cfs @ 4.52 fps) Secondary OutFlow Max=0.58 cfs @ 13.24 hrs HW=921.96' TW=0.00' (Dynamic Tailwater) 2=Asymmetrical Weir (Weir Controls 0.58 cfs @ 0.63 fps) MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 423HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Pond 33P: Wetland 3 Inflow Outflow Primary Secondary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)36 34 32 30 28 26 24 22 20 18 16 14 12 10 8 6 4 2 0 Inflow Area=5.243 ac Peak Elev=921.96' Storage=52,699 cf 32.52 cfs 4.13 cfs 3.55 cfs 0.58 cfs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 424HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Pond 34P: West - South (existing) Inflow Area = 8.421 ac, 9.56% Impervious, Inflow Depth = 4.50" for 100y 24hr event Inflow = 14.25 cfs @ 12.18 hrs, Volume= 3.160 af Outflow = 7.46 cfs @ 12.61 hrs, Volume= 3.160 af, Atten= 48%, Lag= 26.1 min Primary = 7.46 cfs @ 12.61 hrs, Volume= 3.160 af Routed to Reach 30R : West Drainage Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 909.22' @ 12.61 hrs Surf.Area= 0.253 ac Storage= 0.209 af Plug-Flow detention time= (not calculated: outflow precedes inflow) Center-of-Mass det. time= 8.9 min ( 980.6 - 971.8 ) Volume Invert Avail.Storage Storage Description #1 907.00' 1.603 af Custom Stage Data (Prismatic) Listed below (Recalc) Elevation Surf.Area Inc.Store Cum.Store (feet) (acres) (acre-feet) (acre-feet) 907.00 0.000 0.000 0.000 908.00 0.055 0.028 0.028 909.00 0.208 0.131 0.159 910.00 0.413 0.310 0.469 911.00 0.573 0.493 0.962 912.00 0.709 0.641 1.603 Device Routing Invert Outlet Devices #1 Primary 907.00'15.0" Round Culvert L= 48.8' RCP, end-section conforming to fill, Ke= 0.500 Inlet / Outlet Invert= 907.00' / 906.00' S= 0.0205 '/' Cc= 0.900 n= 0.013 Concrete pipe, straight & clean, Flow Area= 1.23 sf #2 Primary 911.22'Asymmetrical Weir, C= 3.27 Offset (feet) 0.00 12.00 18.00 28.00 49.00 88.00 Height (feet) 1.35 0.02 0.00 0.15 0.70 1.35 Primary OutFlow Max=7.46 cfs @ 12.61 hrs HW=909.22' TW=0.00' (Dynamic Tailwater) 1=Culvert (Inlet Controls 7.46 cfs @ 6.08 fps) 2=Asymmetrical Weir ( Controls 0.00 cfs) MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 425HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Pond 34P: West - South (existing) Inflow Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 Inflow Area=8.421 ac Peak Elev=909.22' Storage=0.209 af 14.25 cfs 7.46 cfs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 426HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Pond 41.3P: South-West Temp Basin Inflow Area = 14.560 ac, 9.59% Impervious, Inflow Depth = 5.28" for 100y 24hr event Inflow = 55.59 cfs @ 12.16 hrs, Volume= 6.406 af Outflow = 26.99 cfs @ 12.81 hrs, Volume= 6.405 af, Atten= 51%, Lag= 38.9 min Primary = 3.54 cfs @ 12.81 hrs, Volume= 2.124 af Routed to Reach 44R : Southwest Secondary = 23.45 cfs @ 12.81 hrs, Volume= 4.281 af Routed to Reach 44R : Southwest Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 880.40' @ 12.81 hrs Surf.Area= 35,221 sf Storage= 103,615 cf Plug-Flow detention time= 90.9 min calculated for 6.405 af (100% of inflow) Center-of-Mass det. time= 90.5 min ( 887.3 - 796.9 ) Volume Invert Avail.Storage Storage Description #1 875.63' 126,081 cf Surface Basin (Prismatic) Listed below (Recalc) Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 875.63 8,290 0 0 876.00 12,755 3,893 3,893 878.00 20,605 33,360 37,253 879.00 26,525 23,565 60,818 880.00 32,000 29,263 90,081 881.00 40,000 36,000 126,081 Device Routing Invert Outlet Devices #1 Primary 875.63'15.0" Round Culvert L= 46.0' RCP, end-section conforming to fill, Ke= 0.500 Inlet / Outlet Invert= 875.63' / 875.00' S= 0.0137 '/' Cc= 0.900 n= 0.011 Concrete pipe, straight & clean, Flow Area= 1.23 sf #2 Secondary 877.00'24.0" Round Culvert L= 46.0' RCP, end-section conforming to fill, Ke= 0.500 Inlet / Outlet Invert= 877.00' / 876.37' S= 0.0137 '/' Cc= 0.900 n= 0.011 Concrete pipe, straight & clean, Flow Area= 3.14 sf #3 Device 1 875.63'8.0" Round Culvert L= 8.0' CPP, square edge headwall, Ke= 0.500 Inlet / Outlet Invert= 875.63' / 875.52' S= 0.0138 '/' Cc= 0.900 n= 0.011 PVC, smooth interior, Flow Area= 0.35 sf Primary OutFlow Max=3.54 cfs @ 12.81 hrs HW=880.40' TW=0.00' (Dynamic Tailwater) 1=Culvert (Passes 3.54 cfs of 12.03 cfs potential flow) 3=Culvert (Inlet Controls 3.54 cfs @ 10.14 fps) Secondary OutFlow Max=23.45 cfs @ 12.81 hrs HW=880.40' TW=0.00' (Dynamic Tailwater) 2=Culvert (Inlet Controls 23.45 cfs @ 7.46 fps) MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 427HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Pond 41.3P: South-West Temp Basin Inflow Outflow Primary Secondary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)60 55 50 45 40 35 30 25 20 15 10 5 0 Inflow Area=14.560 ac Peak Elev=880.40' Storage=103,615 cf 55.59 cfs 26.99 cfs 3.54 cfs 23.45 cfs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 428HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Pond 44P: Wetland 4 Inflow Area = 13.102 ac, 8.95% Impervious, Inflow Depth = 3.16" for 100y 24hr event Inflow = 30.63 cfs @ 12.29 hrs, Volume= 3.453 af Outflow = 30.60 cfs @ 12.30 hrs, Volume= 3.452 af, Atten= 0%, Lag= 0.5 min Primary = 30.60 cfs @ 12.30 hrs, Volume= 3.452 af Routed to Reach 44R : Southwest Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 884.70' @ 12.30 hrs Surf.Area= 2,580 sf Storage= 1,162 cf Plug-Flow detention time= 2.3 min calculated for 3.452 af (100% of inflow) Center-of-Mass det. time= 1.9 min ( 850.1 - 848.2 ) Volume Invert Avail.Storage Storage Description #1 884.00' 37,633 cf Custom Stage Data (Prismatic) Listed below (Recalc) Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 884.00 870 0 0 884.50 1,980 713 713 885.00 3,500 1,370 2,083 886.00 7,800 5,650 7,733 887.00 14,000 10,900 18,633 888.00 24,000 19,000 37,633 Device Routing Invert Outlet Devices #1 Primary 884.03'Asymmetrical Weir, C= 3.27 Offset (feet) 0.00 51.00 133.60 176.00 217.30 239.00 Elev. (feet) 889.78 886.05 884.03 885.84 889.00 889.78 Primary OutFlow Max=30.59 cfs @ 12.30 hrs HW=884.70' TW=0.00' (Dynamic Tailwater) 1=Asymmetrical Weir (Weir Controls 30.59 cfs @ 1.07 fps) MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 429HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Pond 44P: Wetland 4 Inflow Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)34 32 30 28 26 24 22 20 18 16 14 12 10 8 6 4 2 0 Inflow Area=13.102 ac Peak Elev=884.70' Storage=1,162 cf 30.63 cfs 30.60 cfs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 430HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Pond 46P: Triangle Basin Inflow Area = 2.769 ac, 15.75% Impervious, Inflow Depth = 5.40" for 100y 24hr event Inflow = 19.27 cfs @ 12.15 hrs, Volume= 1.246 af Outflow = 9.38 cfs @ 12.35 hrs, Volume= 1.246 af, Atten= 51%, Lag= 11.9 min Primary = 8.79 cfs @ 12.35 hrs, Volume= 1.242 af Routed to Pond 41.3P : South-West Temp Basin Secondary = 0.59 cfs @ 12.35 hrs, Volume= 0.004 af Routed to Pond 41.3P : South-West Temp Basin Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 890.80' @ 12.35 hrs Surf.Area= 6,228 sf Storage= 14,198 cf Plug-Flow detention time= 71.5 min calculated for 1.246 af (100% of inflow) Center-of-Mass det. time= 71.5 min ( 845.9 - 774.4 ) Volume Invert Avail.Storage Storage Description #1 887.17' 14,801 cf Open pond (Prismatic) Listed below (Recalc) Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 887.17 1,586 0 0 890.90 6,350 14,801 14,801 Device Routing Invert Outlet Devices #1 Primary 884.37'18.0" Round Culvert L= 125.0' RCP, sq.cut end projecting, Ke= 0.500 Inlet / Outlet Invert= 884.37' / 875.62' S= 0.0700 '/' Cc= 0.900 n= 0.011 Concrete pipe, straight & clean, Flow Area= 1.77 sf #2 Device 1 888.00'15.0" Vert. Orifice/Grate C= 0.600 Limited to weir flow at low heads #3 Secondary 890.75'20.0' long x 5.0' breadth Broad-Crested Rectangular Weir Head (feet) 0.20 0.40 0.60 0.80 1.00 1.20 1.40 1.60 1.80 2.00 2.50 3.00 3.50 4.00 4.50 5.00 5.50 Coef. (English) 2.34 2.50 2.70 2.68 2.68 2.66 2.65 2.65 2.65 2.65 2.67 2.66 2.68 2.70 2.74 2.79 2.88 #4 Device 1 887.17'0.450 in/hr Filtration over Surface area Phase-In= 0.01' Primary OutFlow Max=8.79 cfs @ 12.35 hrs HW=890.80' TW=879.62' (Dynamic Tailwater) 1=Culvert (Passes 8.79 cfs of 20.29 cfs potential flow) 2=Orifice/Grate (Orifice Controls 8.72 cfs @ 7.11 fps) 4=Filtration (Exfiltration Controls 0.06 cfs) Secondary OutFlow Max=0.59 cfs @ 12.35 hrs HW=890.80' TW=879.62' (Dynamic Tailwater) 3=Broad-Crested Rectangular Weir (Weir Controls 0.59 cfs @ 0.54 fps) MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 431HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Pond 46P: Triangle Basin Inflow Outflow Primary Secondary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 Inflow Area=2.769 ac Peak Elev=890.80' Storage=14,198 cf 19.27 cfs 9.38 cfs 8.79 cfs 0.59 cfs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 432HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Pond 47P: Bluff Creek - West Basin - 60" PIPE Inflow Area = 2.860 ac, 40.99% Impervious, Inflow Depth = 5.93" for 100y 24hr event Inflow = 22.44 cfs @ 12.12 hrs, Volume= 1.414 af Outflow = 8.53 cfs @ 12.36 hrs, Volume= 1.414 af, Atten= 62%, Lag= 14.6 min Primary = 8.53 cfs @ 12.36 hrs, Volume= 1.414 af Routed to Reach 48R : Developed Area To Wetland 4 Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 914.95' @ 12.36 hrs Surf.Area= 6,385 sf Storage= 23,896 cf Plug-Flow detention time= 126.3 min calculated for 1.414 af (100% of inflow) Center-of-Mass det. time= 126.3 min ( 891.7 - 765.4 ) Volume Invert Avail.Storage Storage Description #1A 908.00' 8,037 cf 56.09'W x 113.17'L x 6.08'H Field A 38,615 cf Overall - 18,524 cf Embedded = 20,091 cf x 40.0% Voids #2A 908.00' 15,598 cf ADS N-12 60" x 35 Inside #1 Inside= 59.5"W x 59.5"H => 19.30 sf x 20.00'L = 386.0 cf Outside= 67.0"W x 67.0"H => 22.92 sf x 20.00'L = 458.4 cf 35 Chambers in 7 Rows 54.09' Header x 19.30 sf x 2 = 2,087.7 cf Inside #3 908.00' 34,645 cf 4.00'D x 919.00'H Vertical Cone/Cylinder x 3 58,280 cf Total Available Storage Storage Group A created with Chamber Wizard Device Routing Invert Outlet Devices #1 Primary 905.20'15.0" Round Culvert L= 312.0' RCP, square edge headwall, Ke= 0.500 Inlet / Outlet Invert= 905.20' / 901.89' S= 0.0106 '/' Cc= 0.900 n= 0.013 Concrete pipe, straight & clean, Flow Area= 1.23 sf #2 Device 1 905.50'14.0" Round Culvert L= 20.0' CPP, square edge headwall, Ke= 0.500 Inlet / Outlet Invert= 905.50' / 905.20' S= 0.0150 '/' Cc= 0.900 n= 0.011 PVC, smooth interior, Flow Area= 1.07 sf #3 Device 2 909.50'12.0" Vert. Orifice - Overflow C= 0.600 Limited to weir flow at low heads #4 Device 2 906.00'8.0" Vert. Orifice - Underdrain C= 0.600 Limited to weir flow at low heads #5 Device 4 908.00'0.800 in/hr Filtration over Horizontal area Phase-In= 0.01' Primary OutFlow Max=8.50 cfs @ 12.36 hrs HW=914.91' TW=0.00' (Dynamic Tailwater) 1=Culvert (Passes 8.50 cfs of 11.40 cfs potential flow) 2=Culvert (Passes 8.50 cfs of 15.29 cfs potential flow) 3=Orifice - Overflow (Orifice Controls 8.38 cfs @ 10.67 fps) 4=Orifice - Underdrain (Passes 0.12 cfs of 4.92 cfs potential flow) 5=Filtration (Exfiltration Controls 0.12 cfs) MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 433HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Pond 47P: Bluff Creek - West Basin - 60" PIPE - Chamber Wizard Field A Chamber Model = ADS N-12 60" (ADS N-12® Pipe) Inside= 59.5"W x 59.5"H => 19.30 sf x 20.00'L = 386.0 cf Outside= 67.0"W x 67.0"H => 22.92 sf x 20.00'L = 458.4 cf 67.0" Wide + 30.0" Spacing = 97.0" C-C Row Spacing 5 Chambers/Row x 20.00' Long +5.58' Header x 2 = 111.17' Row Length +12.0" End Stone x 2 = 113.17' Base Length 7 Rows x 67.0" Wide + 30.0" Spacing x 6 + 12.0" Side Stone x 2 = 56.09' Base Width 67.0" Chamber Height + 6.0" Stone Cover = 6.08' Field Height 35 Chambers x 386.0 cf + 54.09' Header x 19.30 sf x 2 = 15,597.7 cf Chamber Storage 35 Chambers x 458.4 cf + 54.09' Header x 22.92 sf x 2 = 18,524.0 cf Displacement 38,615.4 cf Field - 18,524.0 cf Chambers = 20,091.4 cf Stone x 40.0% Voids = 8,036.6 cf Stone Storage Chamber Storage + Stone Storage = 23,634.3 cf = 0.543 af Overall Storage Efficiency = 61.2% Overall System Size = 113.17' x 56.09' x 6.08' 35 Chambers 1,430.2 cy Field 744.1 cy Stone MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 434HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Pond 47P: Bluff Creek - West Basin - 60" PIPE Inflow Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 Inflow Area=2.860 ac Peak Elev=914.95' Storage=23,896 cf 22.44 cfs 8.53 cfs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 435HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Pond 48P: Bluff Creek - East Basin [44] Hint: Outlet device #2 is below defined storage Inflow Area = 7.828 ac, 28.98% Impervious, Inflow Depth = 5.78" for 100y 24hr event Inflow = 62.96 cfs @ 12.09 hrs, Volume= 3.773 af Outflow = 2.39 cfs @ 15.05 hrs, Volume= 3.773 af, Atten= 96%, Lag= 177.3 min Primary = 2.39 cfs @ 15.05 hrs, Volume= 3.773 af Routed to Pond 54P : South-East Temp Basin Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 899.94' @ 15.05 hrs Surf.Area= 48,164 sf Storage= 121,365 cf Plug-Flow detention time= (not calculated: outflow precedes inflow) Center-of-Mass det. time= 620.1 min ( 1,384.5 - 764.5 ) Volume Invert Avail.Storage Storage Description #1 897.20' 340,085 cf Open Pond (Prismatic) Listed below (Recalc) Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 897.20 40,540 0 0 904.00 59,485 340,085 340,085 Device Routing Invert Outlet Devices #1 Primary 895.35'12.0" Round Culvert L= 637.0' RCP, sq.cut end projecting, Ke= 0.500 Inlet / Outlet Invert= 895.35' / 888.98' S= 0.0100 '/' Cc= 0.900 n= 0.017 Concrete sewer w/manholes & inlets, Flow Area= 0.79 sf #2 Device 1 897.00'8.0" Round Temp Outlet Pipe L= 21.0' CPP, mitered to conform to fill, Ke= 0.700 Inlet / Outlet Invert= 897.00' / 895.35' S= 0.0786 '/' Cc= 0.900 n= 0.011 PVC, smooth interior, Flow Area= 0.35 sf Primary OutFlow Max=2.39 cfs @ 15.05 hrs HW=899.94' TW=883.88' (Dynamic Tailwater) 1=Culvert (Passes 2.39 cfs of 3.33 cfs potential flow) 2=Temp Outlet Pipe (Inlet Controls 2.39 cfs @ 6.85 fps) MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 436HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Pond 48P: Bluff Creek - East Basin Inflow Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)70 65 60 55 50 45 40 35 30 25 20 15 10 5 0 Inflow Area=7.828 ac Peak Elev=899.94' Storage=121,365 cf 62.96 cfs 2.39 cfs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 437HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Pond 52P: South-Center Temp Basin Inflow Area = 8.180 ac, 9.42% Impervious, Inflow Depth = 5.28" for 100y 24hr event Inflow = 35.39 cfs @ 12.33 hrs, Volume= 3.599 af Outflow = 34.59 cfs @ 12.37 hrs, Volume= 3.599 af, Atten= 2%, Lag= 2.8 min Primary = 34.59 cfs @ 12.37 hrs, Volume= 3.599 af Routed to Pond 41.3P : South-West Temp Basin Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 904.50' @ 12.37 hrs Surf.Area= 11,427 sf Storage= 5,444 cf Plug-Flow detention time= 2.6 min calculated for 3.599 af (100% of inflow) Center-of-Mass det. time= 2.6 min ( 789.5 - 787.0 ) Volume Invert Avail.Storage Storage Description #1 903.14' 49,230 cf Custom Stage Data (Prismatic) Listed below (Recalc) Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 903.14 10 0 0 904.00 3,775 1,628 1,628 905.00 19,015 11,395 13,023 906.00 53,400 36,208 49,230 Device Routing Invert Outlet Devices #1 Primary 903.14'Custom Weir/Orifice, Cv= 2.62 (C= 3.28) Head (feet) 0.00 0.25 0.50 0.75 1.00 2.00 Width (feet) 0.10 4.20 6.25 8.30 12.50 12.50 Primary OutFlow Max=34.59 cfs @ 12.37 hrs HW=904.50' TW=879.70' (Dynamic Tailwater) 1=Custom Weir/Orifice (Weir Controls 34.59 cfs @ 3.21 fps) MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 438HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Pond 52P: South-Center Temp Basin Inflow Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)38 36 34 32 30 28 26 24 22 20 18 16 14 12 10 8 6 4 2 0 Inflow Area=8.180 ac Peak Elev=904.50' Storage=5,444 cf 35.39 cfs 34.59 cfs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 439HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Pond 54P: South-East Temp Basin Inflow Area = 13.937 ac, 16.28% Impervious, Inflow Depth = 5.47" for 100y 24hr event Inflow = 28.36 cfs @ 12.37 hrs, Volume= 6.356 af Outflow = 2.80 cfs @ 16.62 hrs, Volume= 6.355 af, Atten= 90%, Lag= 254.7 min Primary = 1.80 cfs @ 16.62 hrs, Volume= 5.831 af Routed to Reach 42.2R : Southeast Secondary = 1.00 cfs @ 16.62 hrs, Volume= 0.524 af Routed to Reach 42.2R : Southeast Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 883.91' @ 16.62 hrs Surf.Area= 92,885 sf Storage= 113,230 cf Plug-Flow detention time= 735.1 min calculated for 6.355 af (100% of inflow) Center-of-Mass det. time= 735.2 min ( 1,879.5 - 1,144.3 ) Volume Invert Avail.Storage Storage Description #1 879.00' 121,861 cf Custom Stage Data (Prismatic) Listed below (Recalc) Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 879.00 11,945 0 0 881.00 14,583 26,528 26,528 883.00 20,500 35,083 61,611 884.00 100,000 60,250 121,861 Device Routing Invert Outlet Devices #1 Primary 874.38'18.0" Round Culvert L= 68.0' RCP, sq.cut end projecting, Ke= 0.500 Inlet / Outlet Invert= 874.38' / 874.05' S= 0.0049 '/' Cc= 0.900 n= 0.013 Concrete pipe, straight & clean, Flow Area= 1.77 sf #2 Device 1 879.00'6.0" Round Culvert L= 29.0' CPP, mitered to conform to fill, Ke= 0.700 Inlet / Outlet Invert= 879.00' / 878.71' S= 0.0100 '/' Cc= 0.900 n= 0.011 PVC, smooth interior, Flow Area= 0.20 sf #3 Secondary 883.85'25.0' long x 50.0' breadth Broad-Crested Rectangular Weir Head (feet) 0.20 0.40 0.60 0.80 1.00 1.20 1.40 1.60 Coef. (English) 2.68 2.70 2.70 2.64 2.63 2.64 2.64 2.63 Primary OutFlow Max=1.80 cfs @ 16.62 hrs HW=883.91' TW=0.00' (Dynamic Tailwater) 1=Culvert (Passes 1.80 cfs of 24.76 cfs potential flow) 2=Culvert (Inlet Controls 1.80 cfs @ 9.17 fps) Secondary OutFlow Max=1.00 cfs @ 16.62 hrs HW=883.91' TW=0.00' (Dynamic Tailwater) 3=Broad-Crested Rectangular Weir (Weir Controls 1.00 cfs @ 0.66 fps) MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 440HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Pond 54P: South-East Temp Basin Inflow Outflow Primary Secondary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)30 28 26 24 22 20 18 16 14 12 10 8 6 4 2 0 Inflow Area=13.937 ac Peak Elev=883.91' Storage=113,230 cf 28.36 cfs 2.80 cfs 1.80 cfs 1.00 cfs 13.2S Front Yards - South Rowhomes 16oS East Offsite 40.4S So. Villas Private Drive 41.3S South-West 42.1S South Fringe 42.2S Southeast Fringe 43.1S East Woods 43.2S Northeast Woods 44S North Woods 46S Direct to Tri. Basin 46uS Rear Yards of South Townhomes 47S Bluff Creek Pkwy - West 48S Bluff Creek Pkwy - East 52S South - Center 54S South - East 55S Direct to Bluff Creek - East Basin 71-1S Interlacn Subcatch 1 71-2S Interlacn Subcatch 2 72S 6_Temp 73S N68 74S 5_Temp 75S 3225 76S 3236 77S 3238 78S 3243 79S 3245 80S 3250 81S 3343 82S 3345 83S 3348 84S SE12 85S 1S 86S 2S 87S M9 40R South Drainage 42.2R Southeast 44R Southwest 46uR South Swale - at East Property Line of THs 48R Developed Area To Wetland 4 72R N68 41.3P South-West Temp Basin 44P Wetland 4 46P Triangle Basin 47P Bluff Creek - West Basin - 60" PIPE 48P Bluff Creek - East Basin 52P South-Center Temp Basin 54P South-East Temp Basin 71P Interlachen 72P South MNDOT M9 Wetland Routing Diagram for Avienda Ph 3 -- 2023-05-04 Prepared by Landform Professional Services, Printed 5/4/2023 HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Subcat Reach Pond Link Bluff Creek South and MnDOT Wetland M09 Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 2HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Rainfall Events Listing (selected events) Event# Event Name Storm Type Curve Mode Duration (hours) B/B Depth (inches) 1 1-Year MSE 24-hr 3 Default 24.00 1 2.47 2 1.1 Inch Equiv. MSE 24-hr 3 Default 24.00 1 1.32 3 2y 24hr MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Default 24.00 1 2.87 4 10 day snowmelt MN-Snowmelt_10d_100yr Default 240.00 1 7.20 5 10y 24hr MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Default 24.00 1 4.27 6 100y 24hr MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Default 24.00 1 7.41 MSE 24-hr 3 1-Year Rainfall=2.47"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 3HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Time span=0.00-360.00 hrs, dt=0.01 hrs, 36001 points Runoff by SCS TR-20 method, UH=SCS, Weighted-CN Reach routing by Dyn-Stor-Ind method - Pond routing by Dyn-Stor-Ind method Runoff Area=21,220 sf 0.00% Impervious Runoff Depth=0.87"Subcatchment 13.2S: Front Yards - South Tc=5.0 min CN=80 Runoff=0.83 cfs 0.035 af Runoff Area=5,069 sf 76.64% Impervious Runoff Depth=1.84"Subcatchment 16oS: East Offsite Tc=5.0 min CN=94 Runoff=0.39 cfs 0.018 af Runoff Area=63,545 sf 52.82% Impervious Runoff Depth=1.50"Subcatchment 40.4S: So. Villas Private Flow Length=845' Tc=13.0 min CN=90 Runoff=3.03 cfs 0.183 af Runoff Area=157,310 sf 5.27% Impervious Runoff Depth=0.92"Subcatchment 41.3S: South-West Flow Length=285' Tc=8.9 min CN=81 Runoff=5.39 cfs 0.277 af Runoff Area=21,960 sf 0.00% Impervious Runoff Depth=0.87"Subcatchment 42.1S: South Fringe Tc=5.0 min CN=80 Runoff=0.86 cfs 0.036 af Runoff Area=8,870 sf 0.00% Impervious Runoff Depth=0.77"Subcatchment 42.2S: Southeast Fringe Tc=5.0 min CN=78 Runoff=0.30 cfs 0.013 af Runoff Area=140,400 sf 0.00% Impervious Runoff Depth=0.08"Subcatchment 43.1S: East Woods Flow Length=530' Tc=15.2 min CN=55 Runoff=0.06 cfs 0.021 af Runoff Area=76,080 sf 0.00% Impervious Runoff Depth=0.08"Subcatchment 43.2S: Northeast Woods Flow Length=623' Tc=19.5 min CN=55 Runoff=0.03 cfs 0.011 af Runoff Area=446,125 sf 0.00% Impervious Runoff Depth=0.08"Subcatchment 44S: North Woods Tc=20.0 min CN=55 Runoff=0.19 cfs 0.066 af Runoff Area=63,170 sf 0.00% Impervious Runoff Depth=0.87"Subcatchment 46S: Direct to Tri. Basin Flow Length=755' Tc=11.5 min CN=80 Runoff=1.80 cfs 0.105 af Runoff Area=57,455 sf 33.07% Impervious Runoff Depth=1.22"Subcatchment 46uS: Rear Yards of South Flow Length=755' Tc=11.5 min CN=86 Runoff=2.35 cfs 0.134 af Runoff Area=103,380 sf 49.41% Impervious Runoff Depth=1.43"Subcatchment 47S: Bluff Creek Pkwy - Tc=10.0 min CN=89 Runoff=5.26 cfs 0.283 af Runoff Area=168,700 sf 56.27% Impervious Runoff Depth=1.67"Subcatchment 48S: Bluff Creek Pkwy - Tc=10.0 min CN=92 Runoff=9.84 cfs 0.537 af Runoff Area=292,770 sf 0.00% Impervious Runoff Depth=0.87"Subcatchment 52S: South - Center Flow Length=660' Slope=0.0100 '/' Tc=27.0 min CN=80 Runoff=5.34 cfs 0.486 af Runoff Area=266,110 sf 0.00% Impervious Runoff Depth=0.87"Subcatchment 54S: South - East Flow Length=418' Tc=27.7 min CN=80 Runoff=4.79 cfs 0.442 af Runoff Area=167,215 sf 0.00% Impervious Runoff Depth=0.87"Subcatchment 55S: Direct to Bluff Creek - Tc=5.0 min CN=80 Runoff=6.53 cfs 0.278 af MSE 24-hr 3 1-Year Rainfall=2.47"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 4HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Runoff Area=2.080 ac 0.00% Impervious Runoff Depth=1.09"Subcatchment 71-1S: Interlacn Subcatch 1 Tc=7.0 min CN=84 Runoff=4.06 cfs 0.189 af Runoff Area=1.160 ac 100.00% Impervious Runoff Depth=2.47"Subcatchment 71-2S: Interlacn Subcatch 2 Tc=7.0 min CN=100 Runoff=4.13 cfs 0.239 af Runoff Area=0.810 ac 0.00% Impervious Runoff Depth=1.84"Subcatchment 72S: 6_Temp Tc=9.0 min CN=94 Runoff=2.34 cfs 0.124 af Runoff Area=2.360 ac 100.00% Impervious Runoff Depth=2.24"Subcatchment 73S: N68 Tc=7.0 min CN=98 Runoff=8.24 cfs 0.441 af Runoff Area=1.020 ac 0.00% Impervious Runoff Depth=1.50"Subcatchment 74S: 5_Temp Tc=9.0 min CN=90 Runoff=2.49 cfs 0.128 af Runoff Area=3.010 ac 100.00% Impervious Runoff Depth=2.24"Subcatchment 75S: 3225 Tc=7.0 min CN=98 Runoff=10.51 cfs 0.562 af Runoff Area=8.310 ac 0.00% Impervious Runoff Depth=0.87"Subcatchment 76S: 3236 Tc=14.0 min CN=80 Runoff=9.43 cfs 0.601 af Runoff Area=0.950 ac 0.00% Impervious Runoff Depth=1.03"Subcatchment 77S: 3238 Tc=7.0 min CN=83 Runoff=1.75 cfs 0.082 af Runoff Area=0.630 ac 0.00% Impervious Runoff Depth=1.58"Subcatchment 78S: 3243 Tc=7.0 min CN=91 Runoff=1.74 cfs 0.083 af Runoff Area=2.050 ac 100.00% Impervious Runoff Depth=2.24"Subcatchment 79S: 3245 Tc=7.0 min CN=98 Runoff=7.16 cfs 0.383 af Runoff Area=0.350 ac 0.00% Impervious Runoff Depth=1.50"Subcatchment 80S: 3250 Tc=7.0 min CN=90 Runoff=0.93 cfs 0.044 af Runoff Area=5.950 ac 0.00% Impervious Runoff Depth=0.68"Subcatchment 81S: 3343 Tc=19.0 min CN=76 Runoff=4.28 cfs 0.335 af Runoff Area=1.480 ac 0.00% Impervious Runoff Depth=0.77"Subcatchment 82S: 3345 Tc=7.0 min CN=78 Runoff=1.98 cfs 0.095 af Runoff Area=0.700 ac 0.00% Impervious Runoff Depth=1.29"Subcatchment 83S: 3348 Tc=7.0 min CN=87 Runoff=1.60 cfs 0.075 af Runoff Area=2.100 ac 0.00% Impervious Runoff Depth=0.82"Subcatchment 84S: SE12 Tc=11.0 min CN=79 Runoff=2.51 cfs 0.143 af Runoff Area=4.530 ac 0.00% Impervious Runoff Depth=0.41"Subcatchment 85S: 1S Tc=15.0 min CN=69 Runoff=1.85 cfs 0.154 af Runoff Area=5.800 ac 0.00% Impervious Runoff Depth=0.41"Subcatchment 86S: 2S Tc=25.0 min CN=69 Runoff=1.80 cfs 0.197 af MSE 24-hr 3 1-Year Rainfall=2.47"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 5HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Runoff Area=21.638 ac 0.00% Impervious Runoff Depth=0.68"Subcatchment 87S: M9 Tc=29.0 min CN=76 Runoff=12.22 cfs 1.220 af Inflow=4.24 cfs 2.922 afReach 40R: South Drainage Outflow=4.24 cfs 2.922 af Inflow=1.24 cfs 1.323 afReach 42.2R: Southeast Outflow=1.24 cfs 1.323 af Inflow=3.33 cfs 1.578 afReach 44R: Southwest Outflow=3.33 cfs 1.578 af Avg. Flow Depth=0.21' Max Vel=3.16 fps Inflow=2.35 cfs 0.134 afReach 46uR: South Swale - at East n=0.025 L=34.0' S=0.0294 '/' Capacity=11.72 cfs Outflow=2.35 cfs 0.134 af Inflow=0.83 cfs 0.318 afReach 48R: Developed Area To Wetland 4 Outflow=0.83 cfs 0.318 af Avg. Flow Depth=1.13' Max Vel=7.07 fps Inflow=12.90 cfs 0.693 afReach 72R: N68 24.0" Round Pipe n=0.012 L=63.0' S=0.0075 '/' Capacity=21.17 cfs Outflow=12.90 cfs 0.693 af Peak Elev=877.29' Storage=23,533 cf Inflow=10.80 cfs 1.185 afPond 41.3P: South-West Temp Basin Primary=1.93 cfs 1.136 af Secondary=0.50 cfs 0.048 af Outflow=2.43 cfs 1.184 af Peak Elev=884.20' Storage=219 cf Inflow=1.01 cfs 0.384 afPond 44P: Wetland 4 Outflow=1.01 cfs 0.383 af Peak Elev=888.65' Storage=3,737 cf Inflow=4.16 cfs 0.239 afPond 46P: Triangle Basin Primary=1.79 cfs 0.239 af Secondary=0.00 cfs 0.000 af Outflow=1.79 cfs 0.239 af Peak Elev=909.93' Storage=7,106 cf Inflow=5.86 cfs 0.318 afPond 47P: Bluff Creek - West Basin - 60" Outflow=0.83 cfs 0.318 af Peak Elev=897.72' Storage=21,539 cf Inflow=15.86 cfs 0.833 afPond 48P: Bluff Creek - East Basin Outflow=0.92 cfs 0.833 af Peak Elev=903.81' Storage=992 cf Inflow=6.93 cfs 0.669 afPond 52P: South-Center Temp Basin Outflow=6.86 cfs 0.669 af Peak Elev=880.45' Storage=18,767 cf Inflow=5.61 cfs 1.275 afPond 54P: South-East Temp Basin Primary=0.92 cfs 1.274 af Secondary=0.00 cfs 0.000 af Outflow=0.92 cfs 1.274 af Peak Elev=871.46' Storage=77,301 cf Inflow=55.58 cfs 3.381 afPond 71P: Interlachen Outflow=8.74 cfs 3.371 af Peak Elev=870.20' Storage=248,927 cf Inflow=27.30 cfs 8.006 afPond 72P: South MNDOT M9 Wetland Outflow=1.67 cfs 7.734 af Total Runoff Area = 112.205 ac Runoff Volume = 8.020 af Average Runoff Depth = 0.86" 88.04% Pervious = 98.787 ac 11.96% Impervious = 13.418 ac MSE 24-hr 3 1-Year Rainfall=2.47"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 6HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 13.2S: Front Yards - South Rowhomes Runoff = 0.83 cfs @ 12.13 hrs, Volume= 0.035 af, Depth= 0.87" Routed to Pond 47P : Bluff Creek - West Basin - 60" PIPE Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MSE 24-hr 3 1-Year Rainfall=2.47" Area (sf) CN Description 21,220 80 >75% Grass cover, Good, HSG D 21,220 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 5.0 Direct Entry, Subcatchment 13.2S: Front Yards - South Rowhomes Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.9 0.85 0.8 0.75 0.7 0.65 0.6 0.55 0.5 0.45 0.4 0.35 0.3 0.25 0.2 0.15 0.1 0.05 0 MSE 24-hr 3 1-Year Rainfall=2.47" Runoff Area=21,220 sf Runoff Volume=0.035 af Runoff Depth=0.87" Tc=5.0 min CN=80 0.83 cfs MSE 24-hr 3 1-Year Rainfall=2.47"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 7HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 16oS: East Offsite Runoff = 0.39 cfs @ 12.12 hrs, Volume= 0.018 af, Depth= 1.84" Routed to Pond 48P : Bluff Creek - East Basin Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MSE 24-hr 3 1-Year Rainfall=2.47" Area (sf) CN Description 1,184 80 >75% Grass cover, Good, HSG D 3,885 98 Paved parking, HSG D 5,069 94 Weighted Average 1,184 23.36% Pervious Area 3,885 76.64% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 5.0 Direct Entry, Subcatchment 16oS: East Offsite Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.44 0.42 0.4 0.38 0.36 0.34 0.32 0.3 0.28 0.26 0.24 0.22 0.2 0.18 0.16 0.14 0.12 0.1 0.08 0.06 0.04 0.02 0 MSE 24-hr 3 1-Year Rainfall=2.47" Runoff Area=5,069 sf Runoff Volume=0.018 af Runoff Depth=1.84" Tc=5.0 min CN=94 0.39 cfs MSE 24-hr 3 1-Year Rainfall=2.47"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 8HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 40.4S: So. Villas Private Drive Runoff = 3.03 cfs @ 12.21 hrs, Volume= 0.183 af, Depth= 1.50" Routed to Pond 52P : South-Center Temp Basin Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MSE 24-hr 3 1-Year Rainfall=2.47" Area (sf) CN Description 29,980 80 >75% Grass cover, Good, HSG D 33,565 98 Paved parking, HSG D 63,545 90 Weighted Average 29,980 47.18% Pervious Area 33,565 52.82% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 8.3 70 0.0430 0.14 Sheet Flow, Lawn Grass: Dense n= 0.240 P2= 2.87" 4.7 775 0.0180 2.72 Shallow Concentrated Flow, Street Flow Paved Kv= 20.3 fps 13.0 845 Total Subcatchment 40.4S: So. Villas Private Drive Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)3 2 1 0 MSE 24-hr 3 1-Year Rainfall=2.47" Runoff Area=63,545 sf Runoff Volume=0.183 af Runoff Depth=1.50" Flow Length=845' Tc=13.0 min CN=90 3.03 cfs MSE 24-hr 3 1-Year Rainfall=2.47"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 9HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 41.3S: South-West Runoff = 5.39 cfs @ 12.17 hrs, Volume= 0.277 af, Depth= 0.92" Routed to Pond 41.3P : South-West Temp Basin Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MSE 24-hr 3 1-Year Rainfall=2.47" Area (sf) CN Description 149,020 80 >75% Grass cover, Good, HSG D * 8,290 100 Water 157,310 81 Weighted Average 149,020 94.73% Pervious Area 8,290 5.27% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 7.5 100 0.0450 0.22 Sheet Flow, Grass: Short n= 0.150 P2= 2.87" 1.0 90 0.0450 1.48 Shallow Concentrated Flow, Short Grass Pasture Kv= 7.0 fps 0.4 95 0.3333 4.04 Shallow Concentrated Flow, Short Grass Pasture Kv= 7.0 fps 8.9 285 Total Subcatchment 41.3S: South-West Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)6 5 4 3 2 1 0 MSE 24-hr 3 1-Year Rainfall=2.47" Runoff Area=157,310 sf Runoff Volume=0.277 af Runoff Depth=0.92" Flow Length=285' Tc=8.9 min CN=81 5.39 cfs MSE 24-hr 3 1-Year Rainfall=2.47"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 10HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 42.1S: South Fringe Runoff = 0.86 cfs @ 12.13 hrs, Volume= 0.036 af, Depth= 0.87" Routed to Reach 42.2R : Southeast Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MSE 24-hr 3 1-Year Rainfall=2.47" Area (sf) CN Description 21,960 80 >75% Grass cover, Good, HSG D 21,960 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 5.0 Direct Entry, Subcatchment 42.1S: South Fringe Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.95 0.9 0.85 0.8 0.75 0.7 0.65 0.6 0.55 0.5 0.45 0.4 0.35 0.3 0.25 0.2 0.15 0.1 0.05 0 MSE 24-hr 3 1-Year Rainfall=2.47" Runoff Area=21,960 sf Runoff Volume=0.036 af Runoff Depth=0.87" Tc=5.0 min CN=80 0.86 cfs MSE 24-hr 3 1-Year Rainfall=2.47"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 11HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 42.2S: Southeast Fringe Runoff = 0.30 cfs @ 12.13 hrs, Volume= 0.013 af, Depth= 0.77" Routed to Reach 42.2R : Southeast Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MSE 24-hr 3 1-Year Rainfall=2.47" Area (sf) CN Description 8,870 78 Meadow, non-grazed, HSG D 8,870 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 5.0 Direct Entry, Subcatchment 42.2S: Southeast Fringe Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.34 0.32 0.3 0.28 0.26 0.24 0.22 0.2 0.18 0.16 0.14 0.12 0.1 0.08 0.06 0.04 0.02 0 MSE 24-hr 3 1-Year Rainfall=2.47" Runoff Area=8,870 sf Runoff Volume=0.013 af Runoff Depth=0.77" Tc=5.0 min CN=78 0.30 cfs MSE 24-hr 3 1-Year Rainfall=2.47"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 12HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 43.1S: East Woods Runoff = 0.06 cfs @ 12.65 hrs, Volume= 0.021 af, Depth= 0.08" Routed to Reach 40R : South Drainage Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MSE 24-hr 3 1-Year Rainfall=2.47" Area (sf) CN Description 140,400 55 Woods, Good, HSG B 140,400 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 11.1 75 0.0670 0.11 Sheet Flow, Woods: Light underbrush n= 0.400 P2= 2.87" 4.1 455 0.1380 1.86 Shallow Concentrated Flow, Woodland Kv= 5.0 fps 15.2 530 Total Subcatchment 43.1S: East Woods Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.065 0.06 0.055 0.05 0.045 0.04 0.035 0.03 0.025 0.02 0.015 0.01 0.005 0 MSE 24-hr 3 1-Year Rainfall=2.47" Runoff Area=140,400 sf Runoff Volume=0.021 af Runoff Depth=0.08" Flow Length=530' Tc=15.2 min CN=55 0.06 cfs MSE 24-hr 3 1-Year Rainfall=2.47"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 13HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 43.2S: Northeast Woods Runoff = 0.03 cfs @ 13.15 hrs, Volume= 0.011 af, Depth= 0.08" Routed to Reach 44R : Southwest Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MSE 24-hr 3 1-Year Rainfall=2.47" Area (sf) CN Description 76,080 55 Woods, Good, HSG B 76,080 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 14.2 100 0.0650 0.12 Sheet Flow, Woods: Light underbrush n= 0.400 P2= 2.87" 5.3 523 0.1080 1.64 Shallow Concentrated Flow, Woodland Kv= 5.0 fps 19.5 623 Total Subcatchment 43.2S: Northeast Woods Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.036 0.034 0.032 0.03 0.028 0.026 0.024 0.022 0.02 0.018 0.016 0.014 0.012 0.01 0.008 0.006 0.004 0.002 0 MSE 24-hr 3 1-Year Rainfall=2.47" Runoff Area=76,080 sf Runoff Volume=0.011 af Runoff Depth=0.08" Flow Length=623' Tc=19.5 min CN=55 0.03 cfs MSE 24-hr 3 1-Year Rainfall=2.47"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 14HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 44S: North Woods Runoff = 0.19 cfs @ 13.13 hrs, Volume= 0.066 af, Depth= 0.08" Routed to Pond 44P : Wetland 4 Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MSE 24-hr 3 1-Year Rainfall=2.47" Area (sf) CN Description 446,125 55 Woods, Good, HSG B 446,125 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 20.0 Direct Entry, Subcatchment 44S: North Woods Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.21 0.2 0.19 0.18 0.17 0.16 0.15 0.14 0.13 0.12 0.11 0.1 0.09 0.08 0.07 0.06 0.05 0.04 0.03 0.02 0.01 0 MSE 24-hr 3 1-Year Rainfall=2.47" Runoff Area=446,125 sf Runoff Volume=0.066 af Runoff Depth=0.08" Tc=20.0 min CN=55 0.19 cfs MSE 24-hr 3 1-Year Rainfall=2.47"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 15HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 46S: Direct to Tri. Basin Runoff = 1.80 cfs @ 12.20 hrs, Volume= 0.105 af, Depth= 0.87" Routed to Pond 46P : Triangle Basin Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MSE 24-hr 3 1-Year Rainfall=2.47" Area (sf) CN Description 63,170 80 >75% Grass cover, Good, HSG D 63,170 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 3.4 40 0.0500 0.19 Sheet Flow, Grass: Short n= 0.150 P2= 2.87" 8.1 715 0.0440 1.47 Shallow Concentrated Flow, Short Grass Pasture Kv= 7.0 fps 11.5 755 Total Subcatchment 46S: Direct to Tri. Basin Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)2 1 0 MSE 24-hr 3 1-Year Rainfall=2.47" Runoff Area=63,170 sf Runoff Volume=0.105 af Runoff Depth=0.87" Flow Length=755' Tc=11.5 min CN=80 1.80 cfs MSE 24-hr 3 1-Year Rainfall=2.47"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 16HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 46uS: Rear Yards of South Townhomes Runoff = 2.35 cfs @ 12.20 hrs, Volume= 0.134 af, Depth= 1.22" Routed to Reach 46uR : South Swale - at East Property Line of THs Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MSE 24-hr 3 1-Year Rainfall=2.47" Area (sf) CN Description 38,455 80 >75% Grass cover, Good, HSG D 19,000 98 Unconnected roofs, HSG D 57,455 86 Weighted Average 38,455 66.93% Pervious Area 19,000 33.07% Impervious Area 19,000 100.00% Unconnected Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 3.4 40 0.0500 0.19 Sheet Flow, Grass: Short n= 0.150 P2= 2.87" 8.1 715 0.0440 1.47 Shallow Concentrated Flow, Short Grass Pasture Kv= 7.0 fps 11.5 755 Total Subcatchment 46uS: Rear Yards of South Townhomes Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)2 1 0 MSE 24-hr 3 1-Year Rainfall=2.47" Runoff Area=57,455 sf Runoff Volume=0.134 af Runoff Depth=1.22" Flow Length=755' Tc=11.5 min CN=86 2.35 cfs MSE 24-hr 3 1-Year Rainfall=2.47"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 17HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 47S: Bluff Creek Pkwy - West Runoff = 5.26 cfs @ 12.18 hrs, Volume= 0.283 af, Depth= 1.43" Routed to Pond 47P : Bluff Creek - West Basin - 60" PIPE Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MSE 24-hr 3 1-Year Rainfall=2.47" Area (sf) CN Description * 52,305 80 >75% Grass cover, Good, HSG D 51,075 98 Paved roads w/curbs & sewers, HSG D 103,380 89 Weighted Average 52,305 50.59% Pervious Area 51,075 49.41% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 10.0 Direct Entry, Subcatchment 47S: Bluff Creek Pkwy - West Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)5 4 3 2 1 0 MSE 24-hr 3 1-Year Rainfall=2.47" Runoff Area=103,380 sf Runoff Volume=0.283 af Runoff Depth=1.43" Tc=10.0 min CN=89 5.26 cfs MSE 24-hr 3 1-Year Rainfall=2.47"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 18HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 48S: Bluff Creek Pkwy - East Runoff = 9.84 cfs @ 12.17 hrs, Volume= 0.537 af, Depth= 1.67" Routed to Pond 48P : Bluff Creek - East Basin Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MSE 24-hr 3 1-Year Rainfall=2.47" Area (sf) CN Description * 73,780 84 >75% Grass cover, Good, HSG D 94,920 98 Paved roads w/curbs & sewers, HSG D 168,700 92 Weighted Average 73,780 43.73% Pervious Area 94,920 56.27% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 10.0 Direct Entry, Subcatchment 48S: Bluff Creek Pkwy - East Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)11 10 9 8 7 6 5 4 3 2 1 0 MSE 24-hr 3 1-Year Rainfall=2.47" Runoff Area=168,700 sf Runoff Volume=0.537 af Runoff Depth=1.67" Tc=10.0 min CN=92 9.84 cfs MSE 24-hr 3 1-Year Rainfall=2.47"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 19HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 52S: South - Center Runoff = 5.34 cfs @ 12.40 hrs, Volume= 0.486 af, Depth= 0.87" Routed to Pond 52P : South-Center Temp Basin Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MSE 24-hr 3 1-Year Rainfall=2.47" Area (sf) CN Description 292,770 80 >75% Grass cover, Good, HSG D 292,770 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 13.7 100 0.0100 0.12 Sheet Flow, Grass: Short n= 0.150 P2= 2.87" 13.3 560 0.0100 0.70 Shallow Concentrated Flow, Short Grass Pasture Kv= 7.0 fps 27.0 660 Total Subcatchment 52S: South - Center Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)5 4 3 2 1 0 MSE 24-hr 3 1-Year Rainfall=2.47" Runoff Area=292,770 sf Runoff Volume=0.486 af Runoff Depth=0.87" Flow Length=660' Slope=0.0100 '/' Tc=27.0 min CN=80 5.34 cfs MSE 24-hr 3 1-Year Rainfall=2.47"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 20HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 54S: South - East Runoff = 4.79 cfs @ 12.41 hrs, Volume= 0.442 af, Depth= 0.87" Routed to Pond 54P : South-East Temp Basin Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MSE 24-hr 3 1-Year Rainfall=2.47" Area (sf) CN Description 266,110 80 >75% Grass cover, Good, HSG D 266,110 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 14.3 168 0.0250 0.20 Sheet Flow, Grass: Short n= 0.150 P2= 2.87" 8.4 250 0.0050 0.49 Shallow Concentrated Flow, Short Grass Pasture Kv= 7.0 fps 5.0 Direct Entry, Pipe flow 27.7 418 Total Subcatchment 54S: South - East Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)5 4 3 2 1 0 MSE 24-hr 3 1-Year Rainfall=2.47" Runoff Area=266,110 sf Runoff Volume=0.442 af Runoff Depth=0.87" Flow Length=418' Tc=27.7 min CN=80 4.79 cfs MSE 24-hr 3 1-Year Rainfall=2.47"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 21HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 55S: Direct to Bluff Creek - East Basin Runoff = 6.53 cfs @ 12.13 hrs, Volume= 0.278 af, Depth= 0.87" Routed to Pond 48P : Bluff Creek - East Basin Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MSE 24-hr 3 1-Year Rainfall=2.47" Area (sf) CN Description 167,215 80 >75% Grass cover, Good, HSG D 167,215 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 5.0 Direct Entry, Subcatchment 55S: Direct to Bluff Creek - East Basin Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)7 6 5 4 3 2 1 0 MSE 24-hr 3 1-Year Rainfall=2.47" Runoff Area=167,215 sf Runoff Volume=0.278 af Runoff Depth=0.87" Tc=5.0 min CN=80 6.53 cfs MSE 24-hr 3 1-Year Rainfall=2.47"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 22HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 71-1S: Interlacn Subcatch 1 Runoff = 4.06 cfs @ 12.15 hrs, Volume= 0.189 af, Depth= 1.09" Routed to Pond 71P : Interlachen Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MSE 24-hr 3 1-Year Rainfall=2.47" Area (ac) CN Description * 2.080 84 Weoghted 2.080 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 7.0 Direct Entry, Subcatchment 71-1S: Interlacn Subcatch 1 Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)4 3 2 1 0 MSE 24-hr 3 1-Year Rainfall=2.47" Runoff Area=2.080 ac Runoff Volume=0.189 af Runoff Depth=1.09" Tc=7.0 min CN=84 4.06 cfs MSE 24-hr 3 1-Year Rainfall=2.47"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 23HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 71-2S: Interlacn Subcatch 2 Runoff = 4.13 cfs @ 12.14 hrs, Volume= 0.239 af, Depth= 2.47" Routed to Pond 71P : Interlachen Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MSE 24-hr 3 1-Year Rainfall=2.47" Area (ac) CN Description * 1.160 100 1.160 100.00% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 7.0 Direct Entry, Subcatchment 71-2S: Interlacn Subcatch 2 Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)4 3 2 1 0 MSE 24-hr 3 1-Year Rainfall=2.47" Runoff Area=1.160 ac Runoff Volume=0.239 af Runoff Depth=2.47" Tc=7.0 min CN=100 4.13 cfs MSE 24-hr 3 1-Year Rainfall=2.47"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 24HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 72S: 6_Temp Runoff = 2.34 cfs @ 12.16 hrs, Volume= 0.124 af, Depth= 1.84" Routed to Reach 72R : N68 Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MSE 24-hr 3 1-Year Rainfall=2.47" Area (ac) CN Description * 0.810 94 Weighted 0.810 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 9.0 Direct Entry, Subcatchment 72S: 6_Temp Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)2 1 0 MSE 24-hr 3 1-Year Rainfall=2.47" Runoff Area=0.810 ac Runoff Volume=0.124 af Runoff Depth=1.84" Tc=9.0 min CN=94 2.34 cfs MSE 24-hr 3 1-Year Rainfall=2.47"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 25HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 73S: N68 Runoff = 8.24 cfs @ 12.14 hrs, Volume= 0.441 af, Depth= 2.24" Routed to Reach 72R : N68 Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MSE 24-hr 3 1-Year Rainfall=2.47" Area (ac) CN Description * 2.360 98 Weighted 2.360 100.00% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 7.0 Direct Entry, Subcatchment 73S: N68 Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)9 8 7 6 5 4 3 2 1 0 MSE 24-hr 3 1-Year Rainfall=2.47" Runoff Area=2.360 ac Runoff Volume=0.441 af Runoff Depth=2.24" Tc=7.0 min CN=98 8.24 cfs MSE 24-hr 3 1-Year Rainfall=2.47"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 26HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 74S: 5_Temp Runoff = 2.49 cfs @ 12.16 hrs, Volume= 0.128 af, Depth= 1.50" Routed to Reach 72R : N68 Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MSE 24-hr 3 1-Year Rainfall=2.47" Area (ac) CN Description * 1.020 90 1.020 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 9.0 Direct Entry, Subcatchment 74S: 5_Temp Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)2 1 0 MSE 24-hr 3 1-Year Rainfall=2.47" Runoff Area=1.020 ac Runoff Volume=0.128 af Runoff Depth=1.50" Tc=9.0 min CN=90 2.49 cfs MSE 24-hr 3 1-Year Rainfall=2.47"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 27HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 75S: 3225 Runoff = 10.51 cfs @ 12.14 hrs, Volume= 0.562 af, Depth= 2.24" Routed to Pond 71P : Interlachen Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MSE 24-hr 3 1-Year Rainfall=2.47" Area (ac) CN Description * 3.010 98 Weighted 3.010 100.00% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 7.0 Direct Entry, Subcatchment 75S: 3225 Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)11 10 9 8 7 6 5 4 3 2 1 0 MSE 24-hr 3 1-Year Rainfall=2.47" Runoff Area=3.010 ac Runoff Volume=0.562 af Runoff Depth=2.24" Tc=7.0 min CN=98 10.51 cfs MSE 24-hr 3 1-Year Rainfall=2.47"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 28HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 76S: 3236 Runoff = 9.43 cfs @ 12.23 hrs, Volume= 0.601 af, Depth= 0.87" Routed to Pond 71P : Interlachen Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MSE 24-hr 3 1-Year Rainfall=2.47" Area (ac) CN Description * 8.310 80 Weighted 8.310 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 14.0 Direct Entry, Subcatchment 76S: 3236 Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)10 9 8 7 6 5 4 3 2 1 0 MSE 24-hr 3 1-Year Rainfall=2.47" Runoff Area=8.310 ac Runoff Volume=0.601 af Runoff Depth=0.87" Tc=14.0 min CN=80 9.43 cfs MSE 24-hr 3 1-Year Rainfall=2.47"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 29HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 77S: 3238 Runoff = 1.75 cfs @ 12.15 hrs, Volume= 0.082 af, Depth= 1.03" Routed to Pond 71P : Interlachen Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MSE 24-hr 3 1-Year Rainfall=2.47" Area (ac) CN Description * 0.950 83 Weighted 0.950 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 7.0 Direct Entry, Subcatchment 77S: 3238 Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)1 0 MSE 24-hr 3 1-Year Rainfall=2.47" Runoff Area=0.950 ac Runoff Volume=0.082 af Runoff Depth=1.03" Tc=7.0 min CN=83 1.75 cfs MSE 24-hr 3 1-Year Rainfall=2.47"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 30HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 78S: 3243 Runoff = 1.74 cfs @ 12.14 hrs, Volume= 0.083 af, Depth= 1.58" Routed to Pond 71P : Interlachen Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MSE 24-hr 3 1-Year Rainfall=2.47" Area (ac) CN Description * 0.630 91 Weighted 0.630 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 7.0 Direct Entry, Subcatchment 78S: 3243 Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)1 0 MSE 24-hr 3 1-Year Rainfall=2.47" Runoff Area=0.630 ac Runoff Volume=0.083 af Runoff Depth=1.58" Tc=7.0 min CN=91 1.74 cfs MSE 24-hr 3 1-Year Rainfall=2.47"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 31HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 79S: 3245 Runoff = 7.16 cfs @ 12.14 hrs, Volume= 0.383 af, Depth= 2.24" Routed to Pond 71P : Interlachen Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MSE 24-hr 3 1-Year Rainfall=2.47" Area (ac) CN Description * 2.050 98 Weighted 2.050 100.00% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 7.0 Direct Entry, Subcatchment 79S: 3245 Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)8 7 6 5 4 3 2 1 0 MSE 24-hr 3 1-Year Rainfall=2.47" Runoff Area=2.050 ac Runoff Volume=0.383 af Runoff Depth=2.24" Tc=7.0 min CN=98 7.16 cfs MSE 24-hr 3 1-Year Rainfall=2.47"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 32HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 80S: 3250 Runoff = 0.93 cfs @ 12.14 hrs, Volume= 0.044 af, Depth= 1.50" Routed to Pond 71P : Interlachen Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MSE 24-hr 3 1-Year Rainfall=2.47" Area (ac) CN Description * 0.350 90 Weighted 0.350 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 7.0 Direct Entry, Subcatchment 80S: 3250 Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)1 0 MSE 24-hr 3 1-Year Rainfall=2.47" Runoff Area=0.350 ac Runoff Volume=0.044 af Runoff Depth=1.50" Tc=7.0 min CN=90 0.93 cfs MSE 24-hr 3 1-Year Rainfall=2.47"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 33HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 81S: 3343 Runoff = 4.28 cfs @ 12.31 hrs, Volume= 0.335 af, Depth= 0.68" Routed to Pond 71P : Interlachen Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MSE 24-hr 3 1-Year Rainfall=2.47" Area (ac) CN Description * 5.950 76 Weighted 5.950 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 19.0 Direct Entry, Subcatchment 81S: 3343 Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)4 3 2 1 0 MSE 24-hr 3 1-Year Rainfall=2.47" Runoff Area=5.950 ac Runoff Volume=0.335 af Runoff Depth=0.68" Tc=19.0 min CN=76 4.28 cfs MSE 24-hr 3 1-Year Rainfall=2.47"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 34HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 82S: 3345 Runoff = 1.98 cfs @ 12.15 hrs, Volume= 0.095 af, Depth= 0.77" Routed to Pond 71P : Interlachen Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MSE 24-hr 3 1-Year Rainfall=2.47" Area (ac) CN Description * 1.480 78 Weighted 1.480 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 7.0 Direct Entry, Subcatchment 82S: 3345 Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)2 1 0 MSE 24-hr 3 1-Year Rainfall=2.47" Runoff Area=1.480 ac Runoff Volume=0.095 af Runoff Depth=0.77" Tc=7.0 min CN=78 1.98 cfs MSE 24-hr 3 1-Year Rainfall=2.47"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 35HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 83S: 3348 Runoff = 1.60 cfs @ 12.14 hrs, Volume= 0.075 af, Depth= 1.29" Routed to Pond 71P : Interlachen Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MSE 24-hr 3 1-Year Rainfall=2.47" Area (ac) CN Description * 0.700 87 Weighted 0.700 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 7.0 Direct Entry, Subcatchment 83S: 3348 Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)1 0 MSE 24-hr 3 1-Year Rainfall=2.47" Runoff Area=0.700 ac Runoff Volume=0.075 af Runoff Depth=1.29" Tc=7.0 min CN=87 1.60 cfs MSE 24-hr 3 1-Year Rainfall=2.47"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 36HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 84S: SE12 Runoff = 2.51 cfs @ 12.19 hrs, Volume= 0.143 af, Depth= 0.82" Routed to Pond 72P : South MNDOT M9 Wetland Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MSE 24-hr 3 1-Year Rainfall=2.47" Area (ac) CN Description * 2.100 79 Weighted 2.100 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 11.0 Direct Entry, Subcatchment 84S: SE12 Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)2 1 0 MSE 24-hr 3 1-Year Rainfall=2.47" Runoff Area=2.100 ac Runoff Volume=0.143 af Runoff Depth=0.82" Tc=11.0 min CN=79 2.51 cfs MSE 24-hr 3 1-Year Rainfall=2.47"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 37HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 85S: 1S Runoff = 1.85 cfs @ 12.28 hrs, Volume= 0.154 af, Depth= 0.41" Routed to Pond 72P : South MNDOT M9 Wetland Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MSE 24-hr 3 1-Year Rainfall=2.47" Area (ac) CN Description * 4.530 69 Weighted 4.530 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 15.0 Direct Entry, Subcatchment 85S: 1S Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)2 1 0 MSE 24-hr 3 1-Year Rainfall=2.47" Runoff Area=4.530 ac Runoff Volume=0.154 af Runoff Depth=0.41" Tc=15.0 min CN=69 1.85 cfs MSE 24-hr 3 1-Year Rainfall=2.47"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 38HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 86S: 2S Runoff = 1.80 cfs @ 12.44 hrs, Volume= 0.197 af, Depth= 0.41" Routed to Pond 72P : South MNDOT M9 Wetland Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MSE 24-hr 3 1-Year Rainfall=2.47" Area (ac) CN Description * 5.800 69 Weighted 5.800 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 25.0 Direct Entry, Subcatchment 86S: 2S Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)2 1 0 MSE 24-hr 3 1-Year Rainfall=2.47" Runoff Area=5.800 ac Runoff Volume=0.197 af Runoff Depth=0.41" Tc=25.0 min CN=69 1.80 cfs MSE 24-hr 3 1-Year Rainfall=2.47"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 39HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 87S: M9 Runoff = 12.22 cfs @ 12.47 hrs, Volume= 1.220 af, Depth= 0.68" Routed to Pond 72P : South MNDOT M9 Wetland Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MSE 24-hr 3 1-Year Rainfall=2.47" Area (ac) CN Description * 21.638 76 Weighted 21.638 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 29.0 Direct Entry, Subcatchment 87S: M9 Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)13 12 11 10 9 8 7 6 5 4 3 2 1 0 MSE 24-hr 3 1-Year Rainfall=2.47" Runoff Area=21.638 ac Runoff Volume=1.220 af Runoff Depth=0.68" Tc=29.0 min CN=76 12.22 cfs MSE 24-hr 3 1-Year Rainfall=2.47"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 40HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Reach 40R: South Drainage [40] Hint: Not Described (Outflow=Inflow) Inflow Area = 47.277 ac, 10.23% Impervious, Inflow Depth = 0.74" for 1-Year event Inflow = 4.24 cfs @ 13.15 hrs, Volume= 2.922 af Outflow = 4.24 cfs @ 13.15 hrs, Volume= 2.922 af, Atten= 0%, Lag= 0.0 min Routed to Pond 72P : South MNDOT M9 Wetland Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Reach 40R: South Drainage Inflow Outflow Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)4 3 2 1 0 Inflow Area=47.277 ac 4.24 cfs 4.24 cfs MSE 24-hr 3 1-Year Rainfall=2.47"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 41HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Reach 42.2R: Southeast [40] Hint: Not Described (Outflow=Inflow) Inflow Area = 14.645 ac, 15.49% Impervious, Inflow Depth = 1.08" for 1-Year event Inflow = 1.24 cfs @ 12.13 hrs, Volume= 1.323 af Outflow = 1.24 cfs @ 12.13 hrs, Volume= 1.323 af, Atten= 0%, Lag= 0.0 min Routed to Reach 40R : South Drainage Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Reach 42.2R: Southeast Inflow Outflow Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)1 0 Inflow Area=14.645 ac 1.24 cfs 1.24 cfs MSE 24-hr 3 1-Year Rainfall=2.47"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 42HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Reach 44R: Southwest [40] Hint: Not Described (Outflow=Inflow) Inflow Area = 29.409 ac, 8.74% Impervious, Inflow Depth = 0.64" for 1-Year event Inflow = 3.33 cfs @ 13.14 hrs, Volume= 1.578 af Outflow = 3.33 cfs @ 13.14 hrs, Volume= 1.578 af, Atten= 0%, Lag= 0.0 min Routed to Reach 40R : South Drainage Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Reach 44R: Southwest Inflow Outflow Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)3 2 1 0 Inflow Area=29.409 ac 3.33 cfs 3.33 cfs MSE 24-hr 3 1-Year Rainfall=2.47"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 43HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Reach 46uR: South Swale - at East Property Line of THs Inflow Area = 1.319 ac, 33.07% Impervious, Inflow Depth = 1.22" for 1-Year event Inflow = 2.35 cfs @ 12.20 hrs, Volume= 0.134 af Outflow = 2.35 cfs @ 12.20 hrs, Volume= 0.134 af, Atten= 0%, Lag= 0.1 min Routed to Pond 46P : Triangle Basin Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Max. Velocity= 3.16 fps, Min. Travel Time= 0.2 min Avg. Velocity = 0.80 fps, Avg. Travel Time= 0.7 min Peak Storage= 25 cf @ 12.20 hrs Average Depth at Peak Storage= 0.21' , Surface Width= 4.23' Bank-Full Depth= 0.50' Flow Area= 2.3 sf, Capacity= 11.72 cfs 3.00' x 0.50' deep channel, n= 0.025 Short grass Side Slope Z-value= 3.0 '/' Top Width= 6.00' Length= 34.0' Slope= 0.0294 '/' Inlet Invert= 894.00', Outlet Invert= 893.00' ‡ Reach 46uR: South Swale - at East Property Line of THs Inflow Outflow Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)2 1 0 Inflow Area=1.319 ac Avg. Flow Depth=0.21' Max Vel=3.16 fps n=0.025 L=34.0' S=0.0294 '/' Capacity=11.72 cfs 2.35 cfs 2.35 cfs MSE 24-hr 3 1-Year Rainfall=2.47"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 44HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Reach 48R: Developed Area To Wetland 4 [40] Hint: Not Described (Outflow=Inflow) Inflow Area = 2.860 ac, 40.99% Impervious, Inflow Depth = 1.33" for 1-Year event Inflow = 0.83 cfs @ 12.66 hrs, Volume= 0.318 af Outflow = 0.83 cfs @ 12.66 hrs, Volume= 0.318 af, Atten= 0%, Lag= 0.0 min Routed to Pond 44P : Wetland 4 Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Reach 48R: Developed Area To Wetland 4 Inflow Outflow Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.9 0.85 0.8 0.75 0.7 0.65 0.6 0.55 0.5 0.45 0.4 0.35 0.3 0.25 0.2 0.15 0.1 0.05 0 Inflow Area=2.860 ac 0.83 cfs 0.83 cfs MSE 24-hr 3 1-Year Rainfall=2.47"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 45HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Reach 72R: N68 [52] Hint: Inlet/Outlet conditions not evaluated Inflow Area = 4.190 ac, 56.32% Impervious, Inflow Depth = 1.98" for 1-Year event Inflow = 12.90 cfs @ 12.15 hrs, Volume= 0.693 af Outflow = 12.90 cfs @ 12.15 hrs, Volume= 0.693 af, Atten= 0%, Lag= 0.1 min Routed to Pond 71P : Interlachen Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Max. Velocity= 7.07 fps, Min. Travel Time= 0.1 min Avg. Velocity = 1.98 fps, Avg. Travel Time= 0.5 min Peak Storage= 115 cf @ 12.15 hrs Average Depth at Peak Storage= 1.13' , Surface Width= 1.98' Bank-Full Depth= 2.00' Flow Area= 3.1 sf, Capacity= 21.17 cfs 24.0" Round Pipe n= 0.012 Length= 63.0' Slope= 0.0075 '/' Inlet Invert= 872.00', Outlet Invert= 871.53' MSE 24-hr 3 1-Year Rainfall=2.47"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 46HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Reach 72R: N68 Inflow Outflow Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 Inflow Area=4.190 ac Avg. Flow Depth=1.13' Max Vel=7.07 fps 24.0" Round Pipe n=0.012 L=63.0' S=0.0075 '/' Capacity=21.17 cfs 12.90 cfs 12.90 cfs MSE 24-hr 3 1-Year Rainfall=2.47"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 47HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Pond 41.3P: South-West Temp Basin Inflow Area = 14.560 ac, 9.59% Impervious, Inflow Depth = 0.98" for 1-Year event Inflow = 10.80 cfs @ 12.31 hrs, Volume= 1.185 af Outflow = 2.43 cfs @ 13.28 hrs, Volume= 1.184 af, Atten= 77%, Lag= 58.3 min Primary = 1.93 cfs @ 13.28 hrs, Volume= 1.136 af Routed to Reach 44R : Southwest Secondary = 0.50 cfs @ 13.28 hrs, Volume= 0.048 af Routed to Reach 44R : Southwest Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 877.29' @ 13.28 hrs Surf.Area= 17,801 sf Storage= 23,533 cf Plug-Flow detention time= 202.4 min calculated for 1.184 af (100% of inflow) Center-of-Mass det. time= 200.4 min ( 1,083.1 - 882.7 ) Volume Invert Avail.Storage Storage Description #1 875.63' 126,081 cf Surface Basin (Prismatic) Listed below (Recalc) Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 875.63 8,290 0 0 876.00 12,755 3,893 3,893 878.00 20,605 33,360 37,253 879.00 26,525 23,565 60,818 880.00 32,000 29,263 90,081 881.00 40,000 36,000 126,081 Device Routing Invert Outlet Devices #1 Primary 875.63'15.0" Round Culvert L= 46.0' RCP, end-section conforming to fill, Ke= 0.500 Inlet / Outlet Invert= 875.63' / 875.00' S= 0.0137 '/' Cc= 0.900 n= 0.011 Concrete pipe, straight & clean, Flow Area= 1.23 sf #2 Secondary 877.00'24.0" Round Culvert L= 46.0' RCP, end-section conforming to fill, Ke= 0.500 Inlet / Outlet Invert= 877.00' / 876.37' S= 0.0137 '/' Cc= 0.900 n= 0.011 Concrete pipe, straight & clean, Flow Area= 3.14 sf #3 Device 1 875.63'8.0" Round Culvert L= 8.0' CPP, square edge headwall, Ke= 0.500 Inlet / Outlet Invert= 875.63' / 875.52' S= 0.0138 '/' Cc= 0.900 n= 0.011 PVC, smooth interior, Flow Area= 0.35 sf Primary OutFlow Max=1.93 cfs @ 13.28 hrs HW=877.29' TW=0.00' (Dynamic Tailwater) 1=Culvert (Passes 1.93 cfs of 6.00 cfs potential flow) 3=Culvert (Inlet Controls 1.93 cfs @ 5.54 fps) Secondary OutFlow Max=0.50 cfs @ 13.28 hrs HW=877.29' TW=0.00' (Dynamic Tailwater) 2=Culvert (Inlet Controls 0.50 cfs @ 1.82 fps) MSE 24-hr 3 1-Year Rainfall=2.47"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 48HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Pond 41.3P: South-West Temp Basin Inflow Outflow Primary Secondary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)12 11 10 9 8 7 6 5 4 3 2 1 0 Inflow Area=14.560 ac Peak Elev=877.29' Storage=23,533 cf 10.80 cfs 2.43 cfs 1.93 cfs 0.50 cfs MSE 24-hr 3 1-Year Rainfall=2.47"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 49HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Pond 44P: Wetland 4 Inflow Area = 13.102 ac, 8.95% Impervious, Inflow Depth = 0.35" for 1-Year event Inflow = 1.01 cfs @ 12.69 hrs, Volume= 0.384 af Outflow = 1.01 cfs @ 12.72 hrs, Volume= 0.383 af, Atten= 0%, Lag= 1.7 min Primary = 1.01 cfs @ 12.72 hrs, Volume= 0.383 af Routed to Reach 44R : Southwest Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 884.20' @ 12.72 hrs Surf.Area= 1,315 sf Storage= 219 cf Plug-Flow detention time= 10.3 min calculated for 0.383 af (100% of inflow) Center-of-Mass det. time= 8.8 min ( 1,136.3 - 1,127.5 ) Volume Invert Avail.Storage Storage Description #1 884.00' 37,633 cf Custom Stage Data (Prismatic) Listed below (Recalc) Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 884.00 870 0 0 884.50 1,980 713 713 885.00 3,500 1,370 2,083 886.00 7,800 5,650 7,733 887.00 14,000 10,900 18,633 888.00 24,000 19,000 37,633 Device Routing Invert Outlet Devices #1 Primary 884.03'Asymmetrical Weir, C= 3.27 Offset (feet) 0.00 51.00 133.60 176.00 217.30 239.00 Elev. (feet) 889.78 886.05 884.03 885.84 889.00 889.78 Primary OutFlow Max=1.01 cfs @ 12.72 hrs HW=884.20' TW=0.00' (Dynamic Tailwater) 1=Asymmetrical Weir (Weir Controls 1.01 cfs @ 0.54 fps) MSE 24-hr 3 1-Year Rainfall=2.47"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 50HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Pond 44P: Wetland 4 Inflow Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)1 0 Inflow Area=13.102 ac Peak Elev=884.20' Storage=219 cf 1.01 cfs 1.01 cfs MSE 24-hr 3 1-Year Rainfall=2.47"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 51HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Pond 46P: Triangle Basin Inflow Area = 2.769 ac, 15.75% Impervious, Inflow Depth = 1.04" for 1-Year event Inflow = 4.16 cfs @ 12.20 hrs, Volume= 0.239 af Outflow = 1.79 cfs @ 12.41 hrs, Volume= 0.239 af, Atten= 57%, Lag= 12.5 min Primary = 1.79 cfs @ 12.41 hrs, Volume= 0.239 af Routed to Pond 41.3P : South-West Temp Basin Secondary = 0.00 cfs @ 0.00 hrs, Volume= 0.000 af Routed to Pond 41.3P : South-West Temp Basin Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 888.65' @ 12.41 hrs Surf.Area= 3,473 sf Storage= 3,737 cf Plug-Flow detention time= 260.2 min calculated for 0.239 af (100% of inflow) Center-of-Mass det. time= 260.2 min ( 1,081.1 - 820.8 ) Volume Invert Avail.Storage Storage Description #1 887.17' 14,801 cf Open pond (Prismatic) Listed below (Recalc) Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 887.17 1,586 0 0 890.90 6,350 14,801 14,801 Device Routing Invert Outlet Devices #1 Primary 884.37'18.0" Round Culvert L= 125.0' RCP, sq.cut end projecting, Ke= 0.500 Inlet / Outlet Invert= 884.37' / 875.62' S= 0.0700 '/' Cc= 0.900 n= 0.011 Concrete pipe, straight & clean, Flow Area= 1.77 sf #2 Device 1 888.00'15.0" Vert. Orifice/Grate C= 0.600 Limited to weir flow at low heads #3 Secondary 890.75'20.0' long x 5.0' breadth Broad-Crested Rectangular Weir Head (feet) 0.20 0.40 0.60 0.80 1.00 1.20 1.40 1.60 1.80 2.00 2.50 3.00 3.50 4.00 4.50 5.00 5.50 Coef. (English) 2.34 2.50 2.70 2.68 2.68 2.66 2.65 2.65 2.65 2.65 2.67 2.66 2.68 2.70 2.74 2.79 2.88 #4 Device 1 887.17'0.450 in/hr Filtration over Surface area Phase-In= 0.01' Primary OutFlow Max=1.79 cfs @ 12.41 hrs HW=888.65' TW=876.69' (Dynamic Tailwater) 1=Culvert (Passes 1.79 cfs of 15.98 cfs potential flow) 2=Orifice/Grate (Orifice Controls 1.76 cfs @ 2.74 fps) 4=Filtration (Exfiltration Controls 0.04 cfs) Secondary OutFlow Max=0.00 cfs @ 0.00 hrs HW=887.17' TW=875.63' (Dynamic Tailwater) 3=Broad-Crested Rectangular Weir ( Controls 0.00 cfs) MSE 24-hr 3 1-Year Rainfall=2.47"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 52HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Pond 46P: Triangle Basin Inflow Outflow Primary Secondary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)4 3 2 1 0 Inflow Area=2.769 ac Peak Elev=888.65' Storage=3,737 cf 4.16 cfs 1.79 cfs 1.79 cfs 0.00 cfs MSE 24-hr 3 1-Year Rainfall=2.47"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 53HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Pond 47P: Bluff Creek - West Basin - 60" PIPE Inflow Area = 2.860 ac, 40.99% Impervious, Inflow Depth = 1.33" for 1-Year event Inflow = 5.86 cfs @ 12.17 hrs, Volume= 0.318 af Outflow = 0.83 cfs @ 12.66 hrs, Volume= 0.318 af, Atten= 86%, Lag= 29.6 min Primary = 0.83 cfs @ 12.66 hrs, Volume= 0.318 af Routed to Reach 48R : Developed Area To Wetland 4 Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 909.93' @ 12.66 hrs Surf.Area= 6,385 sf Storage= 7,106 cf Plug-Flow detention time= 353.0 min calculated for 0.318 af (100% of inflow) Center-of-Mass det. time= 353.0 min ( 1,158.5 - 805.5 ) Volume Invert Avail.Storage Storage Description #1A 908.00' 8,037 cf 56.09'W x 113.17'L x 6.08'H Field A 38,615 cf Overall - 18,524 cf Embedded = 20,091 cf x 40.0% Voids #2A 908.00' 15,598 cf ADS N-12 60" x 35 Inside #1 Inside= 59.5"W x 59.5"H => 19.30 sf x 20.00'L = 386.0 cf Outside= 67.0"W x 67.0"H => 22.92 sf x 20.00'L = 458.4 cf 35 Chambers in 7 Rows 54.09' Header x 19.30 sf x 2 = 2,087.7 cf Inside #3 908.00' 34,645 cf 4.00'D x 919.00'H Vertical Cone/Cylinder x 3 58,280 cf Total Available Storage Storage Group A created with Chamber Wizard Device Routing Invert Outlet Devices #1 Primary 905.20'15.0" Round Culvert L= 312.0' RCP, square edge headwall, Ke= 0.500 Inlet / Outlet Invert= 905.20' / 901.89' S= 0.0106 '/' Cc= 0.900 n= 0.013 Concrete pipe, straight & clean, Flow Area= 1.23 sf #2 Device 1 905.50'14.0" Round Culvert L= 20.0' CPP, square edge headwall, Ke= 0.500 Inlet / Outlet Invert= 905.50' / 905.20' S= 0.0150 '/' Cc= 0.900 n= 0.011 PVC, smooth interior, Flow Area= 1.07 sf #3 Device 2 909.50'12.0" Vert. Orifice - Overflow C= 0.600 Limited to weir flow at low heads #4 Device 2 906.00'8.0" Vert. Orifice - Underdrain C= 0.600 Limited to weir flow at low heads #5 Device 4 908.00'0.800 in/hr Filtration over Horizontal area Phase-In= 0.01' Primary OutFlow Max=0.83 cfs @ 12.66 hrs HW=909.93' TW=0.00' (Dynamic Tailwater) 1=Culvert (Passes 0.83 cfs of 8.66 cfs potential flow) 2=Culvert (Passes 0.83 cfs of 10.09 cfs potential flow) 3=Orifice - Overflow (Orifice Controls 0.71 cfs @ 2.23 fps) 4=Orifice - Underdrain (Passes 0.12 cfs of 3.19 cfs potential flow) 5=Filtration (Exfiltration Controls 0.12 cfs) MSE 24-hr 3 1-Year Rainfall=2.47"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 54HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Pond 47P: Bluff Creek - West Basin - 60" PIPE - Chamber Wizard Field A Chamber Model = ADS N-12 60" (ADS N-12® Pipe) Inside= 59.5"W x 59.5"H => 19.30 sf x 20.00'L = 386.0 cf Outside= 67.0"W x 67.0"H => 22.92 sf x 20.00'L = 458.4 cf 67.0" Wide + 30.0" Spacing = 97.0" C-C Row Spacing 5 Chambers/Row x 20.00' Long +5.58' Header x 2 = 111.17' Row Length +12.0" End Stone x 2 = 113.17' Base Length 7 Rows x 67.0" Wide + 30.0" Spacing x 6 + 12.0" Side Stone x 2 = 56.09' Base Width 67.0" Chamber Height + 6.0" Stone Cover = 6.08' Field Height 35 Chambers x 386.0 cf + 54.09' Header x 19.30 sf x 2 = 15,597.7 cf Chamber Storage 35 Chambers x 458.4 cf + 54.09' Header x 22.92 sf x 2 = 18,524.0 cf Displacement 38,615.4 cf Field - 18,524.0 cf Chambers = 20,091.4 cf Stone x 40.0% Voids = 8,036.6 cf Stone Storage Chamber Storage + Stone Storage = 23,634.3 cf = 0.543 af Overall Storage Efficiency = 61.2% Overall System Size = 113.17' x 56.09' x 6.08' 35 Chambers 1,430.2 cy Field 744.1 cy Stone MSE 24-hr 3 1-Year Rainfall=2.47"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 55HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Pond 47P: Bluff Creek - West Basin - 60" PIPE Inflow Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)6 5 4 3 2 1 0 Inflow Area=2.860 ac Peak Elev=909.93' Storage=7,106 cf 5.86 cfs 0.83 cfs MSE 24-hr 3 1-Year Rainfall=2.47"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 56HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Pond 48P: Bluff Creek - East Basin [44] Hint: Outlet device #2 is below defined storage Inflow Area = 7.828 ac, 28.98% Impervious, Inflow Depth = 1.28" for 1-Year event Inflow = 15.86 cfs @ 12.14 hrs, Volume= 0.833 af Outflow = 0.92 cfs @ 13.51 hrs, Volume= 0.833 af, Atten= 94%, Lag= 82.3 min Primary = 0.92 cfs @ 13.51 hrs, Volume= 0.833 af Routed to Pond 54P : South-East Temp Basin Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 897.72' @ 13.51 hrs Surf.Area= 41,994 sf Storage= 21,539 cf Plug-Flow detention time= (not calculated: outflow precedes inflow) Center-of-Mass det. time= 321.6 min ( 1,124.7 - 803.1 ) Volume Invert Avail.Storage Storage Description #1 897.20' 340,085 cf Open Pond (Prismatic) Listed below (Recalc) Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 897.20 40,540 0 0 904.00 59,485 340,085 340,085 Device Routing Invert Outlet Devices #1 Primary 895.35'12.0" Round Culvert L= 637.0' RCP, sq.cut end projecting, Ke= 0.500 Inlet / Outlet Invert= 895.35' / 888.98' S= 0.0100 '/' Cc= 0.900 n= 0.017 Concrete sewer w/manholes & inlets, Flow Area= 0.79 sf #2 Device 1 897.00'8.0" Round Temp Outlet Pipe L= 21.0' CPP, mitered to conform to fill, Ke= 0.700 Inlet / Outlet Invert= 897.00' / 895.35' S= 0.0786 '/' Cc= 0.900 n= 0.011 PVC, smooth interior, Flow Area= 0.35 sf Primary OutFlow Max=0.92 cfs @ 13.51 hrs HW=897.72' TW=880.20' (Dynamic Tailwater) 1=Culvert (Passes 0.92 cfs of 2.94 cfs potential flow) 2=Temp Outlet Pipe (Inlet Controls 0.92 cfs @ 2.65 fps) MSE 24-hr 3 1-Year Rainfall=2.47"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 57HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Pond 48P: Bluff Creek - East Basin Inflow Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 Inflow Area=7.828 ac Peak Elev=897.72' Storage=21,539 cf 15.86 cfs 0.92 cfs MSE 24-hr 3 1-Year Rainfall=2.47"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 58HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Pond 52P: South-Center Temp Basin Inflow Area = 8.180 ac, 9.42% Impervious, Inflow Depth = 0.98" for 1-Year event Inflow = 6.93 cfs @ 12.33 hrs, Volume= 0.669 af Outflow = 6.86 cfs @ 12.39 hrs, Volume= 0.669 af, Atten= 1%, Lag= 3.2 min Primary = 6.86 cfs @ 12.39 hrs, Volume= 0.669 af Routed to Pond 41.3P : South-West Temp Basin Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 903.81' @ 12.39 hrs Surf.Area= 2,947 sf Storage= 992 cf Plug-Flow detention time= 3.0 min calculated for 0.669 af (100% of inflow) Center-of-Mass det. time= 3.0 min ( 835.9 - 832.9 ) Volume Invert Avail.Storage Storage Description #1 903.14' 49,230 cf Custom Stage Data (Prismatic) Listed below (Recalc) Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 903.14 10 0 0 904.00 3,775 1,628 1,628 905.00 19,015 11,395 13,023 906.00 53,400 36,208 49,230 Device Routing Invert Outlet Devices #1 Primary 903.14'Custom Weir/Orifice, Cv= 2.62 (C= 3.28) Head (feet) 0.00 0.25 0.50 0.75 1.00 2.00 Width (feet) 0.10 4.20 6.25 8.30 12.50 12.50 Primary OutFlow Max=6.86 cfs @ 12.39 hrs HW=903.81' TW=876.64' (Dynamic Tailwater) 1=Custom Weir/Orifice (Weir Controls 6.86 cfs @ 2.26 fps) MSE 24-hr 3 1-Year Rainfall=2.47"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 59HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Pond 52P: South-Center Temp Basin Inflow Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)7 6 5 4 3 2 1 0 Inflow Area=8.180 ac Peak Elev=903.81' Storage=992 cf 6.93 cfs 6.86 cfs MSE 24-hr 3 1-Year Rainfall=2.47"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 60HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Pond 54P: South-East Temp Basin Inflow Area = 13.937 ac, 16.28% Impervious, Inflow Depth = 1.10" for 1-Year event Inflow = 5.61 cfs @ 12.41 hrs, Volume= 1.275 af Outflow = 0.92 cfs @ 17.12 hrs, Volume= 1.274 af, Atten= 84%, Lag= 282.5 min Primary = 0.92 cfs @ 17.12 hrs, Volume= 1.274 af Routed to Reach 42.2R : Southeast Secondary = 0.00 cfs @ 0.00 hrs, Volume= 0.000 af Routed to Reach 42.2R : Southeast Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 880.45' @ 17.12 hrs Surf.Area= 13,863 sf Storage= 18,767 cf Plug-Flow detention time= 343.9 min calculated for 1.274 af (100% of inflow) Center-of-Mass det. time= 343.1 min ( 1,370.7 - 1,027.7 ) Volume Invert Avail.Storage Storage Description #1 879.00' 121,861 cf Custom Stage Data (Prismatic) Listed below (Recalc) Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 879.00 11,945 0 0 881.00 14,583 26,528 26,528 883.00 20,500 35,083 61,611 884.00 100,000 60,250 121,861 Device Routing Invert Outlet Devices #1 Primary 874.38'18.0" Round Culvert L= 68.0' RCP, sq.cut end projecting, Ke= 0.500 Inlet / Outlet Invert= 874.38' / 874.05' S= 0.0049 '/' Cc= 0.900 n= 0.013 Concrete pipe, straight & clean, Flow Area= 1.77 sf #2 Device 1 879.00'6.0" Round Culvert L= 29.0' CPP, mitered to conform to fill, Ke= 0.700 Inlet / Outlet Invert= 879.00' / 878.71' S= 0.0100 '/' Cc= 0.900 n= 0.011 PVC, smooth interior, Flow Area= 0.20 sf #3 Secondary 883.85'25.0' long x 50.0' breadth Broad-Crested Rectangular Weir Head (feet) 0.20 0.40 0.60 0.80 1.00 1.20 1.40 1.60 Coef. (English) 2.68 2.70 2.70 2.64 2.63 2.64 2.64 2.63 Primary OutFlow Max=0.92 cfs @ 17.12 hrs HW=880.45' TW=0.00' (Dynamic Tailwater) 1=Culvert (Passes 0.92 cfs of 18.96 cfs potential flow) 2=Culvert (Inlet Controls 0.92 cfs @ 4.66 fps) Secondary OutFlow Max=0.00 cfs @ 0.00 hrs HW=879.00' TW=0.00' (Dynamic Tailwater) 3=Broad-Crested Rectangular Weir ( Controls 0.00 cfs) MSE 24-hr 3 1-Year Rainfall=2.47"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 61HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Pond 54P: South-East Temp Basin Inflow Outflow Primary Secondary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)6 5 4 3 2 1 0 Inflow Area=13.937 ac Peak Elev=880.45' Storage=18,767 cf 5.61 cfs 0.92 cfs 0.92 cfs 0.00 cfs MSE 24-hr 3 1-Year Rainfall=2.47"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 62HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Pond 71P: Interlachen [44] Hint: Outlet device #2 is below defined storage Inflow Area = 30.860 ac, 27.80% Impervious, Inflow Depth = 1.31" for 1-Year event Inflow = 55.58 cfs @ 12.15 hrs, Volume= 3.381 af Outflow = 8.74 cfs @ 12.67 hrs, Volume= 3.371 af, Atten= 84%, Lag= 31.3 min Primary = 8.74 cfs @ 12.67 hrs, Volume= 3.371 af Routed to Pond 72P : South MNDOT M9 Wetland Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 871.46' @ 12.67 hrs Surf.Area= 55,168 sf Storage= 77,301 cf Plug-Flow detention time= 414.0 min calculated for 3.371 af (100% of inflow) Center-of-Mass det. time= 412.6 min ( 1,201.9 - 789.3 ) Volume Invert Avail.Storage Storage Description #1 870.00' 381,460 cf Custom Stage Data (Prismatic) Listed below (Recalc) Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 870.00 50,570 0 0 872.00 56,860 107,430 107,430 875.00 74,330 196,785 304,215 876.00 80,160 77,245 381,460 Device Routing Invert Outlet Devices #1 Primary 870.00'24.0" Round Culvert L= 33.0' RCP, square edge headwall, Ke= 0.500 Inlet / Outlet Invert= 870.00' / 869.67' S= 0.0100 '/' Cc= 0.900 n= 0.012, Flow Area= 3.14 sf #2 Device 1 866.61'24.0" Round Culvert L= 21.0' RCP, end-section conforming to fill, Ke= 0.500 Inlet / Outlet Invert= 866.50' / 866.61' S= -0.0052 '/' Cc= 0.900 n= 0.012, Flow Area= 3.14 sf Primary OutFlow Max=8.74 cfs @ 12.67 hrs HW=871.46' TW=869.70' (Dynamic Tailwater) 1=Culvert (Barrel Controls 8.74 cfs @ 4.95 fps) 2=Culvert (Passes 8.74 cfs of 18.29 cfs potential flow) MSE 24-hr 3 1-Year Rainfall=2.47"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 63HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Pond 71P: Interlachen Inflow Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)60 55 50 45 40 35 30 25 20 15 10 5 0 Inflow Area=30.860 ac Peak Elev=871.46' Storage=77,301 cf 55.58 cfs 8.74 cfs MSE 24-hr 3 1-Year Rainfall=2.47"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 64HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Pond 72P: South MNDOT M9 Wetland [44] Hint: Outlet device #3 is below defined storage Inflow Area = 112.205 ac, 11.96% Impervious, Inflow Depth = 0.86" for 1-Year event Inflow = 27.30 cfs @ 12.47 hrs, Volume= 8.006 af Outflow = 1.67 cfs @ 24.33 hrs, Volume= 7.734 af, Atten= 94%, Lag= 711.9 min Primary = 1.67 cfs @ 24.33 hrs, Volume= 7.734 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 870.20' @ 24.33 hrs Surf.Area= 444,271 sf Storage= 248,927 cf Plug-Flow detention time= 2,995.8 min calculated for 7.734 af (97% of inflow) Center-of-Mass det. time= 2,881.1 min ( 4,012.4 - 1,131.4 ) Volume Invert Avail.Storage Storage Description #1 869.50' 2,891,990 cf Custom Stage Data (Prismatic) Listed below (Recalc) Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 869.50 214,970 0 0 870.00 433,070 162,010 162,010 871.00 489,600 461,335 623,345 872.00 532,650 511,125 1,134,470 875.00 639,030 1,757,520 2,891,990 Device Routing Invert Outlet Devices #1 Primary 869.00'18.0" Round Culvert L= 276.0' RCP, square edge headwall, Ke= 0.500 Inlet / Outlet Invert= 869.00' / 866.93' S= 0.0075 '/' Cc= 0.900 n= 0.013 Concrete pipe, straight & clean, Flow Area= 1.77 sf #2 Device 1 869.50'12.0" Vert. Orifice/Grate C= 0.600 Limited to weir flow at low heads #3 Device 2 869.36'18.0" Round Culvert L= 172.0' RCP, end-section conforming to fill, Ke= 0.500 Inlet / Outlet Invert= 868.50' / 869.36' S= -0.0050 '/' Cc= 0.900 n= 0.013 Concrete pipe, straight & clean, Flow Area= 1.77 sf Primary OutFlow Max=1.67 cfs @ 24.33 hrs HW=870.20' (Free Discharge) 1=Culvert (Passes 1.67 cfs of 5.62 cfs potential flow) 2=Orifice/Grate (Orifice Controls 1.67 cfs @ 2.84 fps) 3=Culvert (Passes 1.67 cfs of 3.17 cfs potential flow) MSE 24-hr 3 1-Year Rainfall=2.47"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 65HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Pond 72P: South MNDOT M9 Wetland Inflow Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)30 28 26 24 22 20 18 16 14 12 10 8 6 4 2 0 Inflow Area=112.205 ac Peak Elev=870.20' Storage=248,927 cf 27.30 cfs 1.67 cfs MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 66HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Time span=0.00-360.00 hrs, dt=0.01 hrs, 36001 points Runoff by SCS TR-20 method, UH=SCS, Weighted-CN Reach routing by Dyn-Stor-Ind method - Pond routing by Dyn-Stor-Ind method Runoff Area=21,220 sf 0.00% Impervious Runoff Depth=0.20"Subcatchment 13.2S: Front Yards - South Tc=5.0 min CN=80 Runoff=0.16 cfs 0.008 af Runoff Area=5,069 sf 76.64% Impervious Runoff Depth=0.78"Subcatchment 16oS: East Offsite Tc=5.0 min CN=94 Runoff=0.17 cfs 0.008 af Runoff Area=63,545 sf 52.82% Impervious Runoff Depth=0.55"Subcatchment 40.4S: So. Villas Private Flow Length=845' Tc=13.0 min CN=90 Runoff=1.10 cfs 0.066 af Runoff Area=157,310 sf 5.27% Impervious Runoff Depth=0.23"Subcatchment 41.3S: South-West Flow Length=285' Tc=8.9 min CN=81 Runoff=1.09 cfs 0.068 af Runoff Area=21,960 sf 0.00% Impervious Runoff Depth=0.20"Subcatchment 42.1S: South Fringe Tc=5.0 min CN=80 Runoff=0.17 cfs 0.009 af Runoff Area=8,870 sf 0.00% Impervious Runoff Depth=0.16"Subcatchment 42.2S: Southeast Fringe Tc=5.0 min CN=78 Runoff=0.05 cfs 0.003 af Runoff Area=140,400 sf 0.00% Impervious Runoff Depth=0.00"Subcatchment 43.1S: East Woods Flow Length=530' Tc=15.2 min CN=55 Runoff=0.00 cfs 0.000 af Runoff Area=76,080 sf 0.00% Impervious Runoff Depth=0.00"Subcatchment 43.2S: Northeast Woods Flow Length=623' Tc=19.5 min CN=55 Runoff=0.00 cfs 0.000 af Runoff Area=446,125 sf 0.00% Impervious Runoff Depth=0.00"Subcatchment 44S: North Woods Tc=20.0 min CN=55 Runoff=0.00 cfs 0.000 af Runoff Area=63,170 sf 0.00% Impervious Runoff Depth=0.20"Subcatchment 46S: Direct to Tri. Basin Flow Length=755' Tc=11.5 min CN=80 Runoff=0.32 cfs 0.024 af Runoff Area=57,455 sf 33.07% Impervious Runoff Depth=0.38"Subcatchment 46uS: Rear Yards of South Flow Length=755' Tc=11.5 min CN=86 Runoff=0.69 cfs 0.041 af Runoff Area=103,380 sf 49.41% Impervious Runoff Depth=0.50"Subcatchment 47S: Bluff Creek Pkwy - Tc=10.0 min CN=89 Runoff=1.82 cfs 0.099 af Runoff Area=168,700 sf 56.27% Impervious Runoff Depth=0.65"Subcatchment 48S: Bluff Creek Pkwy - Tc=10.0 min CN=92 Runoff=3.93 cfs 0.210 af Runoff Area=292,770 sf 0.00% Impervious Runoff Depth=0.20"Subcatchment 52S: South - Center Flow Length=660' Slope=0.0100 '/' Tc=27.0 min CN=80 Runoff=0.96 cfs 0.113 af Runoff Area=266,110 sf 0.00% Impervious Runoff Depth=0.20"Subcatchment 54S: South - East Flow Length=418' Tc=27.7 min CN=80 Runoff=0.86 cfs 0.103 af Runoff Area=167,215 sf 0.00% Impervious Runoff Depth=0.20"Subcatchment 55S: Direct to Bluff Creek - Tc=5.0 min CN=80 Runoff=1.27 cfs 0.065 af MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 67HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Runoff Area=2.080 ac 0.00% Impervious Runoff Depth=0.31"Subcatchment 71-1S: Interlacn Subcatch 1 Tc=7.0 min CN=84 Runoff=1.07 cfs 0.054 af Runoff Area=1.160 ac 100.00% Impervious Runoff Depth=1.32"Subcatchment 71-2S: Interlacn Subcatch 2 Tc=7.0 min CN=100 Runoff=2.21 cfs 0.128 af Runoff Area=0.810 ac 0.00% Impervious Runoff Depth=0.78"Subcatchment 72S: 6_Temp Tc=9.0 min CN=94 Runoff=1.02 cfs 0.052 af Runoff Area=2.360 ac 100.00% Impervious Runoff Depth=1.10"Subcatchment 73S: N68 Tc=7.0 min CN=98 Runoff=4.23 cfs 0.217 af Runoff Area=1.020 ac 0.00% Impervious Runoff Depth=0.55"Subcatchment 74S: 5_Temp Tc=9.0 min CN=90 Runoff=0.91 cfs 0.046 af Runoff Area=3.010 ac 100.00% Impervious Runoff Depth=1.10"Subcatchment 75S: 3225 Tc=7.0 min CN=98 Runoff=5.40 cfs 0.277 af Runoff Area=8.310 ac 0.00% Impervious Runoff Depth=0.20"Subcatchment 76S: 3236 Tc=14.0 min CN=80 Runoff=1.68 cfs 0.140 af Runoff Area=0.950 ac 0.00% Impervious Runoff Depth=0.28"Subcatchment 77S: 3238 Tc=7.0 min CN=83 Runoff=0.43 cfs 0.022 af Runoff Area=0.630 ac 0.00% Impervious Runoff Depth=0.60"Subcatchment 78S: 3243 Tc=7.0 min CN=91 Runoff=0.67 cfs 0.031 af Runoff Area=2.050 ac 100.00% Impervious Runoff Depth=1.10"Subcatchment 79S: 3245 Tc=7.0 min CN=98 Runoff=3.68 cfs 0.188 af Runoff Area=0.350 ac 0.00% Impervious Runoff Depth=0.55"Subcatchment 80S: 3250 Tc=7.0 min CN=90 Runoff=0.34 cfs 0.016 af Runoff Area=5.950 ac 0.00% Impervious Runoff Depth=0.12"Subcatchment 81S: 3343 Tc=19.0 min CN=76 Runoff=0.45 cfs 0.061 af Runoff Area=1.480 ac 0.00% Impervious Runoff Depth=0.16"Subcatchment 82S: 3345 Tc=7.0 min CN=78 Runoff=0.28 cfs 0.020 af Runoff Area=0.700 ac 0.00% Impervious Runoff Depth=0.41"Subcatchment 83S: 3348 Tc=7.0 min CN=87 Runoff=0.51 cfs 0.024 af Runoff Area=2.100 ac 0.00% Impervious Runoff Depth=0.18"Subcatchment 84S: SE12 Tc=11.0 min CN=79 Runoff=0.40 cfs 0.032 af Runoff Area=4.530 ac 0.00% Impervious Runoff Depth=0.04"Subcatchment 85S: 1S Tc=15.0 min CN=69 Runoff=0.04 cfs 0.014 af Runoff Area=5.800 ac 0.00% Impervious Runoff Depth=0.04"Subcatchment 86S: 2S Tc=25.0 min CN=69 Runoff=0.05 cfs 0.017 af MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 68HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Runoff Area=21.638 ac 0.00% Impervious Runoff Depth=0.12"Subcatchment 87S: M9 Tc=29.0 min CN=76 Runoff=1.37 cfs 0.222 af Inflow=0.87 cfs 0.815 afReach 40R: South Drainage Outflow=0.87 cfs 0.815 af Inflow=0.35 cfs 0.396 afReach 42.2R: Southeast Outflow=0.35 cfs 0.396 af Inflow=0.60 cfs 0.419 afReach 44R: Southwest Outflow=0.60 cfs 0.419 af Avg. Flow Depth=0.10' Max Vel=2.07 fps Inflow=0.69 cfs 0.041 afReach 46uR: South Swale - at East n=0.025 L=34.0' S=0.0294 '/' Capacity=11.72 cfs Outflow=0.69 cfs 0.041 af Inflow=0.12 cfs 0.107 afReach 48R: Developed Area To Wetland 4 Outflow=0.12 cfs 0.107 af Avg. Flow Depth=0.73' Max Vel=5.82 fps Inflow=6.08 cfs 0.316 afReach 72R: N68 24.0" Round Pipe n=0.012 L=63.0' S=0.0075 '/' Capacity=21.17 cfs Outflow=6.08 cfs 0.316 af Peak Elev=876.07' Storage=4,807 cf Inflow=2.19 cfs 0.314 afPond 41.3P: South-West Temp Basin Primary=0.48 cfs 0.313 af Secondary=0.00 cfs 0.000 af Outflow=0.48 cfs 0.313 af Peak Elev=884.10' Storage=101 cf Inflow=0.12 cfs 0.107 afPond 44P: Wetland 4 Outflow=0.12 cfs 0.106 af Peak Elev=888.04' Storage=1,869 cf Inflow=1.01 cfs 0.066 afPond 46P: Triangle Basin Primary=0.04 cfs 0.066 af Secondary=0.00 cfs 0.000 af Outflow=0.04 cfs 0.066 af Peak Elev=908.86' Storage=2,427 cf Inflow=1.94 cfs 0.107 afPond 47P: Bluff Creek - West Basin - 60" Outflow=0.12 cfs 0.107 af Peak Elev=897.36' Storage=6,553 cf Inflow=5.10 cfs 0.283 afPond 48P: Bluff Creek - East Basin Outflow=0.35 cfs 0.283 af Peak Elev=903.48' Storage=254 cf Inflow=1.49 cfs 0.180 afPond 52P: South-Center Temp Basin Outflow=1.47 cfs 0.180 af Peak Elev=879.42' Storage=5,131 cf Inflow=1.17 cfs 0.386 afPond 54P: South-East Temp Basin Primary=0.34 cfs 0.385 af Secondary=0.00 cfs 0.000 af Outflow=0.34 cfs 0.385 af Peak Elev=870.62' Storage=31,965 cf Inflow=21.43 cfs 1.277 afPond 71P: Interlachen Outflow=2.05 cfs 1.267 af Peak Elev=869.78' Storage=78,042 cf Inflow=4.04 cfs 2.367 afPond 72P: South MNDOT M9 Wetland Outflow=0.33 cfs 2.138 af Total Runoff Area = 112.205 ac Runoff Volume = 2.379 af Average Runoff Depth = 0.25" 88.04% Pervious = 98.787 ac 11.96% Impervious = 13.418 ac MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 69HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 13.2S: Front Yards - South Rowhomes Runoff = 0.16 cfs @ 12.14 hrs, Volume= 0.008 af, Depth= 0.20" Routed to Pond 47P : Bluff Creek - West Basin - 60" PIPE Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32" Area (sf) CN Description 21,220 80 >75% Grass cover, Good, HSG D 21,220 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 5.0 Direct Entry, Subcatchment 13.2S: Front Yards - South Rowhomes Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.18 0.17 0.16 0.15 0.14 0.13 0.12 0.11 0.1 0.09 0.08 0.07 0.06 0.05 0.04 0.03 0.02 0.01 0 MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32" Runoff Area=21,220 sf Runoff Volume=0.008 af Runoff Depth=0.20" Tc=5.0 min CN=80 0.16 cfs MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 70HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 16oS: East Offsite Runoff = 0.17 cfs @ 12.12 hrs, Volume= 0.008 af, Depth= 0.78" Routed to Pond 48P : Bluff Creek - East Basin Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32" Area (sf) CN Description 1,184 80 >75% Grass cover, Good, HSG D 3,885 98 Paved parking, HSG D 5,069 94 Weighted Average 1,184 23.36% Pervious Area 3,885 76.64% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 5.0 Direct Entry, Subcatchment 16oS: East Offsite Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.19 0.18 0.17 0.16 0.15 0.14 0.13 0.12 0.11 0.1 0.09 0.08 0.07 0.06 0.05 0.04 0.03 0.02 0.01 0 MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32" Runoff Area=5,069 sf Runoff Volume=0.008 af Runoff Depth=0.78" Tc=5.0 min CN=94 0.17 cfs MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 71HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 40.4S: So. Villas Private Drive Runoff = 1.10 cfs @ 12.21 hrs, Volume= 0.066 af, Depth= 0.55" Routed to Pond 52P : South-Center Temp Basin Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32" Area (sf) CN Description 29,980 80 >75% Grass cover, Good, HSG D 33,565 98 Paved parking, HSG D 63,545 90 Weighted Average 29,980 47.18% Pervious Area 33,565 52.82% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 8.3 70 0.0430 0.14 Sheet Flow, Lawn Grass: Dense n= 0.240 P2= 2.87" 4.7 775 0.0180 2.72 Shallow Concentrated Flow, Street Flow Paved Kv= 20.3 fps 13.0 845 Total Subcatchment 40.4S: So. Villas Private Drive Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)1 0 MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32" Runoff Area=63,545 sf Runoff Volume=0.066 af Runoff Depth=0.55" Flow Length=845' Tc=13.0 min CN=90 1.10 cfs MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 72HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 41.3S: South-West Runoff = 1.09 cfs @ 12.18 hrs, Volume= 0.068 af, Depth= 0.23" Routed to Pond 41.3P : South-West Temp Basin Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32" Area (sf) CN Description 149,020 80 >75% Grass cover, Good, HSG D * 8,290 100 Water 157,310 81 Weighted Average 149,020 94.73% Pervious Area 8,290 5.27% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 7.5 100 0.0450 0.22 Sheet Flow, Grass: Short n= 0.150 P2= 2.87" 1.0 90 0.0450 1.48 Shallow Concentrated Flow, Short Grass Pasture Kv= 7.0 fps 0.4 95 0.3333 4.04 Shallow Concentrated Flow, Short Grass Pasture Kv= 7.0 fps 8.9 285 Total Subcatchment 41.3S: South-West Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)1 0 MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32" Runoff Area=157,310 sf Runoff Volume=0.068 af Runoff Depth=0.23" Flow Length=285' Tc=8.9 min CN=81 1.09 cfs MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 73HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 42.1S: South Fringe Runoff = 0.17 cfs @ 12.14 hrs, Volume= 0.009 af, Depth= 0.20" Routed to Reach 42.2R : Southeast Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32" Area (sf) CN Description 21,960 80 >75% Grass cover, Good, HSG D 21,960 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 5.0 Direct Entry, Subcatchment 42.1S: South Fringe Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.18 0.17 0.16 0.15 0.14 0.13 0.12 0.11 0.1 0.09 0.08 0.07 0.06 0.05 0.04 0.03 0.02 0.01 0 MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32" Runoff Area=21,960 sf Runoff Volume=0.009 af Runoff Depth=0.20" Tc=5.0 min CN=80 0.17 cfs MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 74HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 42.2S: Southeast Fringe Runoff = 0.05 cfs @ 12.14 hrs, Volume= 0.003 af, Depth= 0.16" Routed to Reach 42.2R : Southeast Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32" Area (sf) CN Description 8,870 78 Meadow, non-grazed, HSG D 8,870 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 5.0 Direct Entry, Subcatchment 42.2S: Southeast Fringe Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.05 0.048 0.046 0.044 0.042 0.04 0.038 0.036 0.034 0.032 0.03 0.028 0.026 0.024 0.022 0.02 0.018 0.016 0.014 0.012 0.01 0.008 0.006 0.004 0.002 0 MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32" Runoff Area=8,870 sf Runoff Volume=0.003 af Runoff Depth=0.16" Tc=5.0 min CN=78 0.05 cfs MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 75HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 43.1S: East Woods [45] Hint: Runoff=Zero Runoff = 0.00 cfs @ 0.00 hrs, Volume= 0.000 af, Depth= 0.00" Routed to Reach 40R : South Drainage Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32" Area (sf) CN Description 140,400 55 Woods, Good, HSG B 140,400 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 11.1 75 0.0670 0.11 Sheet Flow, Woods: Light underbrush n= 0.400 P2= 2.87" 4.1 455 0.1380 1.86 Shallow Concentrated Flow, Woodland Kv= 5.0 fps 15.2 530 Total Subcatchment 43.1S: East Woods Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)1 0 MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32" Runoff Area=140,400 sf Runoff Volume=0.000 af Runoff Depth=0.00" Flow Length=530' Tc=15.2 min CN=55 0.00 cfs MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 76HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 43.2S: Northeast Woods [45] Hint: Runoff=Zero Runoff = 0.00 cfs @ 0.00 hrs, Volume= 0.000 af, Depth= 0.00" Routed to Reach 44R : Southwest Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32" Area (sf) CN Description 76,080 55 Woods, Good, HSG B 76,080 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 14.2 100 0.0650 0.12 Sheet Flow, Woods: Light underbrush n= 0.400 P2= 2.87" 5.3 523 0.1080 1.64 Shallow Concentrated Flow, Woodland Kv= 5.0 fps 19.5 623 Total Subcatchment 43.2S: Northeast Woods Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)1 0 MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32" Runoff Area=76,080 sf Runoff Volume=0.000 af Runoff Depth=0.00" Flow Length=623' Tc=19.5 min CN=55 0.00 cfs MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 77HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 44S: North Woods [45] Hint: Runoff=Zero Runoff = 0.00 cfs @ 0.00 hrs, Volume= 0.000 af, Depth= 0.00" Routed to Pond 44P : Wetland 4 Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32" Area (sf) CN Description 446,125 55 Woods, Good, HSG B 446,125 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 20.0 Direct Entry, Subcatchment 44S: North Woods Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)1 0 MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32" Runoff Area=446,125 sf Runoff Volume=0.000 af Runoff Depth=0.00" Tc=20.0 min CN=55 0.00 cfs MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 78HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 46S: Direct to Tri. Basin Runoff = 0.32 cfs @ 12.23 hrs, Volume= 0.024 af, Depth= 0.20" Routed to Pond 46P : Triangle Basin Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32" Area (sf) CN Description 63,170 80 >75% Grass cover, Good, HSG D 63,170 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 3.4 40 0.0500 0.19 Sheet Flow, Grass: Short n= 0.150 P2= 2.87" 8.1 715 0.0440 1.47 Shallow Concentrated Flow, Short Grass Pasture Kv= 7.0 fps 11.5 755 Total Subcatchment 46S: Direct to Tri. Basin Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.36 0.34 0.32 0.3 0.28 0.26 0.24 0.22 0.2 0.18 0.16 0.14 0.12 0.1 0.08 0.06 0.04 0.02 0 MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32" Runoff Area=63,170 sf Runoff Volume=0.024 af Runoff Depth=0.20" Flow Length=755' Tc=11.5 min CN=80 0.32 cfs MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 79HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 46uS: Rear Yards of South Townhomes Runoff = 0.69 cfs @ 12.20 hrs, Volume= 0.041 af, Depth= 0.38" Routed to Reach 46uR : South Swale - at East Property Line of THs Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32" Area (sf) CN Description 38,455 80 >75% Grass cover, Good, HSG D 19,000 98 Unconnected roofs, HSG D 57,455 86 Weighted Average 38,455 66.93% Pervious Area 19,000 33.07% Impervious Area 19,000 100.00% Unconnected Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 3.4 40 0.0500 0.19 Sheet Flow, Grass: Short n= 0.150 P2= 2.87" 8.1 715 0.0440 1.47 Shallow Concentrated Flow, Short Grass Pasture Kv= 7.0 fps 11.5 755 Total Subcatchment 46uS: Rear Yards of South Townhomes Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.75 0.7 0.65 0.6 0.55 0.5 0.45 0.4 0.35 0.3 0.25 0.2 0.15 0.1 0.05 0 MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32" Runoff Area=57,455 sf Runoff Volume=0.041 af Runoff Depth=0.38" Flow Length=755' Tc=11.5 min CN=86 0.69 cfs MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 80HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 47S: Bluff Creek Pkwy - West Runoff = 1.82 cfs @ 12.18 hrs, Volume= 0.099 af, Depth= 0.50" Routed to Pond 47P : Bluff Creek - West Basin - 60" PIPE Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32" Area (sf) CN Description * 52,305 80 >75% Grass cover, Good, HSG D 51,075 98 Paved roads w/curbs & sewers, HSG D 103,380 89 Weighted Average 52,305 50.59% Pervious Area 51,075 49.41% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 10.0 Direct Entry, Subcatchment 47S: Bluff Creek Pkwy - West Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)2 1 0 MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32" Runoff Area=103,380 sf Runoff Volume=0.099 af Runoff Depth=0.50" Tc=10.0 min CN=89 1.82 cfs MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 81HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 48S: Bluff Creek Pkwy - East Runoff = 3.93 cfs @ 12.18 hrs, Volume= 0.210 af, Depth= 0.65" Routed to Pond 48P : Bluff Creek - East Basin Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32" Area (sf) CN Description * 73,780 84 >75% Grass cover, Good, HSG D 94,920 98 Paved roads w/curbs & sewers, HSG D 168,700 92 Weighted Average 73,780 43.73% Pervious Area 94,920 56.27% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 10.0 Direct Entry, Subcatchment 48S: Bluff Creek Pkwy - East Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)4 3 2 1 0 MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32" Runoff Area=168,700 sf Runoff Volume=0.210 af Runoff Depth=0.65" Tc=10.0 min CN=92 3.93 cfs MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 82HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 52S: South - Center Runoff = 0.96 cfs @ 12.48 hrs, Volume= 0.113 af, Depth= 0.20" Routed to Pond 52P : South-Center Temp Basin Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32" Area (sf) CN Description 292,770 80 >75% Grass cover, Good, HSG D 292,770 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 13.7 100 0.0100 0.12 Sheet Flow, Grass: Short n= 0.150 P2= 2.87" 13.3 560 0.0100 0.70 Shallow Concentrated Flow, Short Grass Pasture Kv= 7.0 fps 27.0 660 Total Subcatchment 52S: South - Center Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)1 0 MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32" Runoff Area=292,770 sf Runoff Volume=0.113 af Runoff Depth=0.20" Flow Length=660' Slope=0.0100 '/' Tc=27.0 min CN=80 0.96 cfs MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 83HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 54S: South - East Runoff = 0.86 cfs @ 12.49 hrs, Volume= 0.103 af, Depth= 0.20" Routed to Pond 54P : South-East Temp Basin Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32" Area (sf) CN Description 266,110 80 >75% Grass cover, Good, HSG D 266,110 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 14.3 168 0.0250 0.20 Sheet Flow, Grass: Short n= 0.150 P2= 2.87" 8.4 250 0.0050 0.49 Shallow Concentrated Flow, Short Grass Pasture Kv= 7.0 fps 5.0 Direct Entry, Pipe flow 27.7 418 Total Subcatchment 54S: South - East Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.95 0.9 0.85 0.8 0.75 0.7 0.65 0.6 0.55 0.5 0.45 0.4 0.35 0.3 0.25 0.2 0.15 0.1 0.05 0 MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32" Runoff Area=266,110 sf Runoff Volume=0.103 af Runoff Depth=0.20" Flow Length=418' Tc=27.7 min CN=80 0.86 cfs MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 84HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 55S: Direct to Bluff Creek - East Basin Runoff = 1.27 cfs @ 12.14 hrs, Volume= 0.065 af, Depth= 0.20" Routed to Pond 48P : Bluff Creek - East Basin Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32" Area (sf) CN Description 167,215 80 >75% Grass cover, Good, HSG D 167,215 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 5.0 Direct Entry, Subcatchment 55S: Direct to Bluff Creek - East Basin Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)1 0 MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32" Runoff Area=167,215 sf Runoff Volume=0.065 af Runoff Depth=0.20" Tc=5.0 min CN=80 1.27 cfs MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 85HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 71-1S: Interlacn Subcatch 1 Runoff = 1.07 cfs @ 12.15 hrs, Volume= 0.054 af, Depth= 0.31" Routed to Pond 71P : Interlachen Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32" Area (ac) CN Description * 2.080 84 Weoghted 2.080 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 7.0 Direct Entry, Subcatchment 71-1S: Interlacn Subcatch 1 Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)1 0 MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32" Runoff Area=2.080 ac Runoff Volume=0.054 af Runoff Depth=0.31" Tc=7.0 min CN=84 1.07 cfs MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 86HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 71-2S: Interlacn Subcatch 2 Runoff = 2.21 cfs @ 12.14 hrs, Volume= 0.128 af, Depth= 1.32" Routed to Pond 71P : Interlachen Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32" Area (ac) CN Description * 1.160 100 1.160 100.00% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 7.0 Direct Entry, Subcatchment 71-2S: Interlacn Subcatch 2 Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)2 1 0 MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32" Runoff Area=1.160 ac Runoff Volume=0.128 af Runoff Depth=1.32" Tc=7.0 min CN=100 2.21 cfs MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 87HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 72S: 6_Temp Runoff = 1.02 cfs @ 12.17 hrs, Volume= 0.052 af, Depth= 0.78" Routed to Reach 72R : N68 Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32" Area (ac) CN Description * 0.810 94 Weighted 0.810 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 9.0 Direct Entry, Subcatchment 72S: 6_Temp Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)1 0 MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32" Runoff Area=0.810 ac Runoff Volume=0.052 af Runoff Depth=0.78" Tc=9.0 min CN=94 1.02 cfs MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 88HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 73S: N68 Runoff = 4.23 cfs @ 12.14 hrs, Volume= 0.217 af, Depth= 1.10" Routed to Reach 72R : N68 Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32" Area (ac) CN Description * 2.360 98 Weighted 2.360 100.00% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 7.0 Direct Entry, Subcatchment 73S: N68 Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)4 3 2 1 0 MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32" Runoff Area=2.360 ac Runoff Volume=0.217 af Runoff Depth=1.10" Tc=7.0 min CN=98 4.23 cfs MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 89HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 74S: 5_Temp Runoff = 0.91 cfs @ 12.17 hrs, Volume= 0.046 af, Depth= 0.55" Routed to Reach 72R : N68 Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32" Area (ac) CN Description * 1.020 90 1.020 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 9.0 Direct Entry, Subcatchment 74S: 5_Temp Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)1 0 MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32" Runoff Area=1.020 ac Runoff Volume=0.046 af Runoff Depth=0.55" Tc=9.0 min CN=90 0.91 cfs MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 90HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 75S: 3225 Runoff = 5.40 cfs @ 12.14 hrs, Volume= 0.277 af, Depth= 1.10" Routed to Pond 71P : Interlachen Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32" Area (ac) CN Description * 3.010 98 Weighted 3.010 100.00% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 7.0 Direct Entry, Subcatchment 75S: 3225 Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)6 5 4 3 2 1 0 MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32" Runoff Area=3.010 ac Runoff Volume=0.277 af Runoff Depth=1.10" Tc=7.0 min CN=98 5.40 cfs MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 91HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 76S: 3236 Runoff = 1.68 cfs @ 12.27 hrs, Volume= 0.140 af, Depth= 0.20" Routed to Pond 71P : Interlachen Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32" Area (ac) CN Description * 8.310 80 Weighted 8.310 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 14.0 Direct Entry, Subcatchment 76S: 3236 Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)1 0 MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32" Runoff Area=8.310 ac Runoff Volume=0.140 af Runoff Depth=0.20" Tc=14.0 min CN=80 1.68 cfs MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 92HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 77S: 3238 Runoff = 0.43 cfs @ 12.15 hrs, Volume= 0.022 af, Depth= 0.28" Routed to Pond 71P : Interlachen Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32" Area (ac) CN Description * 0.950 83 Weighted 0.950 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 7.0 Direct Entry, Subcatchment 77S: 3238 Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.48 0.46 0.44 0.42 0.4 0.38 0.36 0.34 0.32 0.3 0.28 0.26 0.24 0.22 0.2 0.18 0.16 0.14 0.12 0.1 0.08 0.06 0.04 0.02 0 MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32" Runoff Area=0.950 ac Runoff Volume=0.022 af Runoff Depth=0.28" Tc=7.0 min CN=83 0.43 cfs MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 93HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 78S: 3243 Runoff = 0.67 cfs @ 12.15 hrs, Volume= 0.031 af, Depth= 0.60" Routed to Pond 71P : Interlachen Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32" Area (ac) CN Description * 0.630 91 Weighted 0.630 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 7.0 Direct Entry, Subcatchment 78S: 3243 Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.75 0.7 0.65 0.6 0.55 0.5 0.45 0.4 0.35 0.3 0.25 0.2 0.15 0.1 0.05 0 MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32" Runoff Area=0.630 ac Runoff Volume=0.031 af Runoff Depth=0.60" Tc=7.0 min CN=91 0.67 cfs MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 94HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 79S: 3245 Runoff = 3.68 cfs @ 12.14 hrs, Volume= 0.188 af, Depth= 1.10" Routed to Pond 71P : Interlachen Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32" Area (ac) CN Description * 2.050 98 Weighted 2.050 100.00% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 7.0 Direct Entry, Subcatchment 79S: 3245 Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)4 3 2 1 0 MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32" Runoff Area=2.050 ac Runoff Volume=0.188 af Runoff Depth=1.10" Tc=7.0 min CN=98 3.68 cfs MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 95HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 80S: 3250 Runoff = 0.34 cfs @ 12.15 hrs, Volume= 0.016 af, Depth= 0.55" Routed to Pond 71P : Interlachen Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32" Area (ac) CN Description * 0.350 90 Weighted 0.350 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 7.0 Direct Entry, Subcatchment 80S: 3250 Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.38 0.36 0.34 0.32 0.3 0.28 0.26 0.24 0.22 0.2 0.18 0.16 0.14 0.12 0.1 0.08 0.06 0.04 0.02 0 MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32" Runoff Area=0.350 ac Runoff Volume=0.016 af Runoff Depth=0.55" Tc=7.0 min CN=90 0.34 cfs MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 96HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 81S: 3343 Runoff = 0.45 cfs @ 12.40 hrs, Volume= 0.061 af, Depth= 0.12" Routed to Pond 71P : Interlachen Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32" Area (ac) CN Description * 5.950 76 Weighted 5.950 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 19.0 Direct Entry, Subcatchment 81S: 3343 Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.5 0.48 0.46 0.44 0.42 0.4 0.38 0.36 0.34 0.32 0.3 0.28 0.26 0.24 0.22 0.2 0.18 0.16 0.14 0.12 0.1 0.08 0.06 0.04 0.02 0 MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32" Runoff Area=5.950 ac Runoff Volume=0.061 af Runoff Depth=0.12" Tc=19.0 min CN=76 0.45 cfs MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 97HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 82S: 3345 Runoff = 0.28 cfs @ 12.17 hrs, Volume= 0.020 af, Depth= 0.16" Routed to Pond 71P : Interlachen Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32" Area (ac) CN Description * 1.480 78 Weighted 1.480 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 7.0 Direct Entry, Subcatchment 82S: 3345 Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.3 0.28 0.26 0.24 0.22 0.2 0.18 0.16 0.14 0.12 0.1 0.08 0.06 0.04 0.02 0 MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32" Runoff Area=1.480 ac Runoff Volume=0.020 af Runoff Depth=0.16" Tc=7.0 min CN=78 0.28 cfs MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 98HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 83S: 3348 Runoff = 0.51 cfs @ 12.15 hrs, Volume= 0.024 af, Depth= 0.41" Routed to Pond 71P : Interlachen Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32" Area (ac) CN Description * 0.700 87 Weighted 0.700 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 7.0 Direct Entry, Subcatchment 83S: 3348 Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.55 0.5 0.45 0.4 0.35 0.3 0.25 0.2 0.15 0.1 0.05 0 MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32" Runoff Area=0.700 ac Runoff Volume=0.024 af Runoff Depth=0.41" Tc=7.0 min CN=87 0.51 cfs MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 99HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 84S: SE12 Runoff = 0.40 cfs @ 12.22 hrs, Volume= 0.032 af, Depth= 0.18" Routed to Pond 72P : South MNDOT M9 Wetland Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32" Area (ac) CN Description * 2.100 79 Weighted 2.100 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 11.0 Direct Entry, Subcatchment 84S: SE12 Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.44 0.42 0.4 0.38 0.36 0.34 0.32 0.3 0.28 0.26 0.24 0.22 0.2 0.18 0.16 0.14 0.12 0.1 0.08 0.06 0.04 0.02 0 MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32" Runoff Area=2.100 ac Runoff Volume=0.032 af Runoff Depth=0.18" Tc=11.0 min CN=79 0.40 cfs MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 100HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 85S: 1S Runoff = 0.04 cfs @ 13.15 hrs, Volume= 0.014 af, Depth= 0.04" Routed to Pond 72P : South MNDOT M9 Wetland Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32" Area (ac) CN Description * 4.530 69 Weighted 4.530 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 15.0 Direct Entry, Subcatchment 85S: 1S Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.042 0.04 0.038 0.036 0.034 0.032 0.03 0.028 0.026 0.024 0.022 0.02 0.018 0.016 0.014 0.012 0.01 0.008 0.006 0.004 0.002 0 MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32" Runoff Area=4.530 ac Runoff Volume=0.014 af Runoff Depth=0.04" Tc=15.0 min CN=69 0.04 cfs MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 101HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 86S: 2S Runoff = 0.05 cfs @ 13.31 hrs, Volume= 0.017 af, Depth= 0.04" Routed to Pond 72P : South MNDOT M9 Wetland Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32" Area (ac) CN Description * 5.800 69 Weighted 5.800 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 25.0 Direct Entry, Subcatchment 86S: 2S Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.05 0.045 0.04 0.035 0.03 0.025 0.02 0.015 0.01 0.005 0 MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32" Runoff Area=5.800 ac Runoff Volume=0.017 af Runoff Depth=0.04" Tc=25.0 min CN=69 0.05 cfs MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 102HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 87S: M9 Runoff = 1.37 cfs @ 12.59 hrs, Volume= 0.222 af, Depth= 0.12" Routed to Pond 72P : South MNDOT M9 Wetland Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32" Area (ac) CN Description * 21.638 76 Weighted 21.638 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 29.0 Direct Entry, Subcatchment 87S: M9 Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)1 0 MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32" Runoff Area=21.638 ac Runoff Volume=0.222 af Runoff Depth=0.12" Tc=29.0 min CN=76 1.37 cfs MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 103HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Reach 40R: South Drainage [40] Hint: Not Described (Outflow=Inflow) Inflow Area = 47.277 ac, 10.23% Impervious, Inflow Depth = 0.21" for 1.1 Inch Equiv. event Inflow = 0.87 cfs @ 13.95 hrs, Volume= 0.815 af Outflow = 0.87 cfs @ 13.95 hrs, Volume= 0.815 af, Atten= 0%, Lag= 0.0 min Routed to Pond 72P : South MNDOT M9 Wetland Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Reach 40R: South Drainage Inflow Outflow Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.95 0.9 0.85 0.8 0.75 0.7 0.65 0.6 0.55 0.5 0.45 0.4 0.35 0.3 0.25 0.2 0.15 0.1 0.05 0 Inflow Area=47.277 ac 0.87 cfs 0.87 cfs MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 104HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Reach 42.2R: Southeast [40] Hint: Not Described (Outflow=Inflow) Inflow Area = 14.645 ac, 15.49% Impervious, Inflow Depth > 0.32" for 1.1 Inch Equiv. event Inflow = 0.35 cfs @ 16.45 hrs, Volume= 0.396 af Outflow = 0.35 cfs @ 16.45 hrs, Volume= 0.396 af, Atten= 0%, Lag= 0.0 min Routed to Reach 40R : South Drainage Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Reach 42.2R: Southeast Inflow Outflow Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.38 0.36 0.34 0.32 0.3 0.28 0.26 0.24 0.22 0.2 0.18 0.16 0.14 0.12 0.1 0.08 0.06 0.04 0.02 0 Inflow Area=14.645 ac 0.35 cfs 0.35 cfs MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 105HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Reach 44R: Southwest [40] Hint: Not Described (Outflow=Inflow) Inflow Area = 29.409 ac, 8.74% Impervious, Inflow Depth = 0.17" for 1.1 Inch Equiv. event Inflow = 0.60 cfs @ 13.57 hrs, Volume= 0.419 af Outflow = 0.60 cfs @ 13.57 hrs, Volume= 0.419 af, Atten= 0%, Lag= 0.0 min Routed to Reach 40R : South Drainage Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Reach 44R: Southwest Inflow Outflow Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.65 0.6 0.55 0.5 0.45 0.4 0.35 0.3 0.25 0.2 0.15 0.1 0.05 0 Inflow Area=29.409 ac 0.60 cfs 0.60 cfs MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 106HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Reach 46uR: South Swale - at East Property Line of THs Inflow Area = 1.319 ac, 33.07% Impervious, Inflow Depth = 0.38" for 1.1 Inch Equiv. event Inflow = 0.69 cfs @ 12.20 hrs, Volume= 0.041 af Outflow = 0.69 cfs @ 12.21 hrs, Volume= 0.041 af, Atten= 0%, Lag= 0.2 min Routed to Pond 46P : Triangle Basin Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Max. Velocity= 2.07 fps, Min. Travel Time= 0.3 min Avg. Velocity = 0.56 fps, Avg. Travel Time= 1.0 min Peak Storage= 11 cf @ 12.21 hrs Average Depth at Peak Storage= 0.10' , Surface Width= 3.60' Bank-Full Depth= 0.50' Flow Area= 2.3 sf, Capacity= 11.72 cfs 3.00' x 0.50' deep channel, n= 0.025 Short grass Side Slope Z-value= 3.0 '/' Top Width= 6.00' Length= 34.0' Slope= 0.0294 '/' Inlet Invert= 894.00', Outlet Invert= 893.00' ‡ Reach 46uR: South Swale - at East Property Line of THs Inflow Outflow Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.75 0.7 0.65 0.6 0.55 0.5 0.45 0.4 0.35 0.3 0.25 0.2 0.15 0.1 0.05 0 Inflow Area=1.319 ac Avg. Flow Depth=0.10' Max Vel=2.07 fps n=0.025 L=34.0' S=0.0294 '/' Capacity=11.72 cfs 0.69 cfs 0.69 cfs MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 107HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Reach 48R: Developed Area To Wetland 4 [40] Hint: Not Described (Outflow=Inflow) Inflow Area = 2.860 ac, 40.99% Impervious, Inflow Depth = 0.45" for 1.1 Inch Equiv. event Inflow = 0.12 cfs @ 12.01 hrs, Volume= 0.107 af Outflow = 0.12 cfs @ 12.01 hrs, Volume= 0.107 af, Atten= 0%, Lag= 0.0 min Routed to Pond 44P : Wetland 4 Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Reach 48R: Developed Area To Wetland 4 Inflow Outflow Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.13 0.12 0.11 0.1 0.09 0.08 0.07 0.06 0.05 0.04 0.03 0.02 0.01 0 Inflow Area=2.860 ac 0.12 cfs 0.12 cfs MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 108HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Reach 72R: N68 [52] Hint: Inlet/Outlet conditions not evaluated Inflow Area = 4.190 ac, 56.32% Impervious, Inflow Depth = 0.90" for 1.1 Inch Equiv. event Inflow = 6.08 cfs @ 12.15 hrs, Volume= 0.316 af Outflow = 6.08 cfs @ 12.15 hrs, Volume= 0.316 af, Atten= 0%, Lag= 0.1 min Routed to Pond 71P : Interlachen Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Max. Velocity= 5.82 fps, Min. Travel Time= 0.2 min Avg. Velocity = 1.61 fps, Avg. Travel Time= 0.7 min Peak Storage= 66 cf @ 12.15 hrs Average Depth at Peak Storage= 0.73' , Surface Width= 1.93' Bank-Full Depth= 2.00' Flow Area= 3.1 sf, Capacity= 21.17 cfs 24.0" Round Pipe n= 0.012 Length= 63.0' Slope= 0.0075 '/' Inlet Invert= 872.00', Outlet Invert= 871.53' MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 109HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Reach 72R: N68 Inflow Outflow Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)6 5 4 3 2 1 0 Inflow Area=4.190 ac Avg. Flow Depth=0.73' Max Vel=5.82 fps 24.0" Round Pipe n=0.012 L=63.0' S=0.0075 '/' Capacity=21.17 cfs 6.08 cfs 6.08 cfs MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 110HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Pond 41.3P: South-West Temp Basin Inflow Area = 14.560 ac, 9.59% Impervious, Inflow Depth = 0.26" for 1.1 Inch Equiv. event Inflow = 2.19 cfs @ 12.24 hrs, Volume= 0.314 af Outflow = 0.48 cfs @ 13.57 hrs, Volume= 0.313 af, Atten= 78%, Lag= 79.6 min Primary = 0.48 cfs @ 13.57 hrs, Volume= 0.313 af Routed to Reach 44R : Southwest Secondary = 0.00 cfs @ 0.00 hrs, Volume= 0.000 af Routed to Reach 44R : Southwest Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 876.07' @ 13.57 hrs Surf.Area= 13,033 sf Storage= 4,807 cf Plug-Flow detention time= 320.6 min calculated for 0.313 af (100% of inflow) Center-of-Mass det. time= 314.3 min ( 1,330.0 - 1,015.7 ) Volume Invert Avail.Storage Storage Description #1 875.63' 126,081 cf Surface Basin (Prismatic) Listed below (Recalc) Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 875.63 8,290 0 0 876.00 12,755 3,893 3,893 878.00 20,605 33,360 37,253 879.00 26,525 23,565 60,818 880.00 32,000 29,263 90,081 881.00 40,000 36,000 126,081 Device Routing Invert Outlet Devices #1 Primary 875.63'15.0" Round Culvert L= 46.0' RCP, end-section conforming to fill, Ke= 0.500 Inlet / Outlet Invert= 875.63' / 875.00' S= 0.0137 '/' Cc= 0.900 n= 0.011 Concrete pipe, straight & clean, Flow Area= 1.23 sf #2 Secondary 877.00'24.0" Round Culvert L= 46.0' RCP, end-section conforming to fill, Ke= 0.500 Inlet / Outlet Invert= 877.00' / 876.37' S= 0.0137 '/' Cc= 0.900 n= 0.011 Concrete pipe, straight & clean, Flow Area= 3.14 sf #3 Device 1 875.63'8.0" Round Culvert L= 8.0' CPP, square edge headwall, Ke= 0.500 Inlet / Outlet Invert= 875.63' / 875.52' S= 0.0138 '/' Cc= 0.900 n= 0.011 PVC, smooth interior, Flow Area= 0.35 sf Primary OutFlow Max=0.48 cfs @ 13.57 hrs HW=876.07' TW=0.00' (Dynamic Tailwater) 1=Culvert (Passes 0.48 cfs of 0.87 cfs potential flow) 3=Culvert (Barrel Controls 0.48 cfs @ 2.80 fps) Secondary OutFlow Max=0.00 cfs @ 0.00 hrs HW=875.63' TW=0.00' (Dynamic Tailwater) 2=Culvert ( Controls 0.00 cfs) MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 111HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Pond 41.3P: South-West Temp Basin Inflow Outflow Primary Secondary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)2 1 0 Inflow Area=14.560 ac Peak Elev=876.07' Storage=4,807 cf 2.19 cfs 0.48 cfs 0.48 cfs 0.00 cfs MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 112HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Pond 44P: Wetland 4 Inflow Area = 13.102 ac, 8.95% Impervious, Inflow Depth = 0.10" for 1.1 Inch Equiv. event Inflow = 0.12 cfs @ 12.01 hrs, Volume= 0.107 af Outflow = 0.12 cfs @ 14.32 hrs, Volume= 0.106 af, Atten= 0%, Lag= 138.6 min Primary = 0.12 cfs @ 14.32 hrs, Volume= 0.106 af Routed to Reach 44R : Southwest Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 884.10' @ 13.84 hrs Surf.Area= 1,097 sf Storage= 101 cf Plug-Flow detention time= 17.5 min calculated for 0.106 af (99% of inflow) Center-of-Mass det. time= 15.1 min ( 1,041.4 - 1,026.3 ) Volume Invert Avail.Storage Storage Description #1 884.00' 37,633 cf Custom Stage Data (Prismatic) Listed below (Recalc) Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 884.00 870 0 0 884.50 1,980 713 713 885.00 3,500 1,370 2,083 886.00 7,800 5,650 7,733 887.00 14,000 10,900 18,633 888.00 24,000 19,000 37,633 Device Routing Invert Outlet Devices #1 Primary 884.03'Asymmetrical Weir, C= 3.27 Offset (feet) 0.00 51.00 133.60 176.00 217.30 239.00 Elev. (feet) 889.78 886.05 884.03 885.84 889.00 889.78 Primary OutFlow Max=0.12 cfs @ 14.32 hrs HW=884.10' TW=0.00' (Dynamic Tailwater) 1=Asymmetrical Weir (Weir Controls 0.12 cfs @ 0.35 fps) MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 113HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Pond 44P: Wetland 4 Inflow Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.13 0.12 0.11 0.1 0.09 0.08 0.07 0.06 0.05 0.04 0.03 0.02 0.01 0 Inflow Area=13.102 ac Peak Elev=884.10' Storage=101 cf 0.12 cfs 0.12 cfs MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 114HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Pond 46P: Triangle Basin Inflow Area = 2.769 ac, 15.75% Impervious, Inflow Depth = 0.29" for 1.1 Inch Equiv. event Inflow = 1.01 cfs @ 12.21 hrs, Volume= 0.066 af Outflow = 0.04 cfs @ 15.30 hrs, Volume= 0.066 af, Atten= 96%, Lag= 185.2 min Primary = 0.04 cfs @ 15.30 hrs, Volume= 0.066 af Routed to Pond 41.3P : South-West Temp Basin Secondary = 0.00 cfs @ 0.00 hrs, Volume= 0.000 af Routed to Pond 41.3P : South-West Temp Basin Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 888.04' @ 15.30 hrs Surf.Area= 2,700 sf Storage= 1,869 cf Plug-Flow detention time= 736.5 min calculated for 0.066 af (100% of inflow) Center-of-Mass det. time= 736.5 min ( 1,587.1 - 850.6 ) Volume Invert Avail.Storage Storage Description #1 887.17' 14,801 cf Open pond (Prismatic) Listed below (Recalc) Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 887.17 1,586 0 0 890.90 6,350 14,801 14,801 Device Routing Invert Outlet Devices #1 Primary 884.37'18.0" Round Culvert L= 125.0' RCP, sq.cut end projecting, Ke= 0.500 Inlet / Outlet Invert= 884.37' / 875.62' S= 0.0700 '/' Cc= 0.900 n= 0.011 Concrete pipe, straight & clean, Flow Area= 1.77 sf #2 Device 1 888.00'15.0" Vert. Orifice/Grate C= 0.600 Limited to weir flow at low heads #3 Secondary 890.75'20.0' long x 5.0' breadth Broad-Crested Rectangular Weir Head (feet) 0.20 0.40 0.60 0.80 1.00 1.20 1.40 1.60 1.80 2.00 2.50 3.00 3.50 4.00 4.50 5.00 5.50 Coef. (English) 2.34 2.50 2.70 2.68 2.68 2.66 2.65 2.65 2.65 2.65 2.67 2.66 2.68 2.70 2.74 2.79 2.88 #4 Device 1 887.17'0.450 in/hr Filtration over Surface area Phase-In= 0.01' Primary OutFlow Max=0.04 cfs @ 15.30 hrs HW=888.04' TW=876.00' (Dynamic Tailwater) 1=Culvert (Passes 0.04 cfs of 14.55 cfs potential flow) 2=Orifice/Grate (Orifice Controls 0.01 cfs @ 0.70 fps) 4=Filtration (Exfiltration Controls 0.03 cfs) Secondary OutFlow Max=0.00 cfs @ 0.00 hrs HW=887.17' TW=875.63' (Dynamic Tailwater) 3=Broad-Crested Rectangular Weir ( Controls 0.00 cfs) MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 115HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Pond 46P: Triangle Basin Inflow Outflow Primary Secondary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)1 0 Inflow Area=2.769 ac Peak Elev=888.04' Storage=1,869 cf 1.01 cfs 0.04 cfs 0.04 cfs 0.00 cfs MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 116HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Pond 47P: Bluff Creek - West Basin - 60" PIPE Inflow Area = 2.860 ac, 40.99% Impervious, Inflow Depth = 0.45" for 1.1 Inch Equiv. event Inflow = 1.94 cfs @ 12.18 hrs, Volume= 0.107 af Outflow = 0.12 cfs @ 12.01 hrs, Volume= 0.107 af, Atten= 94%, Lag= 0.0 min Primary = 0.12 cfs @ 12.01 hrs, Volume= 0.107 af Routed to Reach 48R : Developed Area To Wetland 4 Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 908.86' @ 13.62 hrs Surf.Area= 6,385 sf Storage= 2,427 cf Plug-Flow detention time= 198.3 min calculated for 0.107 af (100% of inflow) Center-of-Mass det. time= 198.3 min ( 1,026.3 - 828.0 ) Volume Invert Avail.Storage Storage Description #1A 908.00' 8,037 cf 56.09'W x 113.17'L x 6.08'H Field A 38,615 cf Overall - 18,524 cf Embedded = 20,091 cf x 40.0% Voids #2A 908.00' 15,598 cf ADS N-12 60" x 35 Inside #1 Inside= 59.5"W x 59.5"H => 19.30 sf x 20.00'L = 386.0 cf Outside= 67.0"W x 67.0"H => 22.92 sf x 20.00'L = 458.4 cf 35 Chambers in 7 Rows 54.09' Header x 19.30 sf x 2 = 2,087.7 cf Inside #3 908.00' 34,645 cf 4.00'D x 919.00'H Vertical Cone/Cylinder x 3 58,280 cf Total Available Storage Storage Group A created with Chamber Wizard Device Routing Invert Outlet Devices #1 Primary 905.20'15.0" Round Culvert L= 312.0' RCP, square edge headwall, Ke= 0.500 Inlet / Outlet Invert= 905.20' / 901.89' S= 0.0106 '/' Cc= 0.900 n= 0.013 Concrete pipe, straight & clean, Flow Area= 1.23 sf #2 Device 1 905.50'14.0" Round Culvert L= 20.0' CPP, square edge headwall, Ke= 0.500 Inlet / Outlet Invert= 905.50' / 905.20' S= 0.0150 '/' Cc= 0.900 n= 0.011 PVC, smooth interior, Flow Area= 1.07 sf #3 Device 2 909.50'12.0" Vert. Orifice - Overflow C= 0.600 Limited to weir flow at low heads #4 Device 2 906.00'8.0" Vert. Orifice - Underdrain C= 0.600 Limited to weir flow at low heads #5 Device 4 908.00'0.800 in/hr Filtration over Horizontal area Phase-In= 0.01' Primary OutFlow Max=0.12 cfs @ 12.01 hrs HW=908.06' TW=0.00' (Dynamic Tailwater) 1=Culvert (Passes 0.12 cfs of 7.38 cfs potential flow) 2=Culvert (Passes 0.12 cfs of 7.24 cfs potential flow) 3=Orifice - Overflow ( Controls 0.00 cfs) 4=Orifice - Underdrain (Passes 0.12 cfs of 2.21 cfs potential flow) 5=Filtration (Exfiltration Controls 0.12 cfs) MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 117HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Pond 47P: Bluff Creek - West Basin - 60" PIPE - Chamber Wizard Field A Chamber Model = ADS N-12 60" (ADS N-12® Pipe) Inside= 59.5"W x 59.5"H => 19.30 sf x 20.00'L = 386.0 cf Outside= 67.0"W x 67.0"H => 22.92 sf x 20.00'L = 458.4 cf 67.0" Wide + 30.0" Spacing = 97.0" C-C Row Spacing 5 Chambers/Row x 20.00' Long +5.58' Header x 2 = 111.17' Row Length +12.0" End Stone x 2 = 113.17' Base Length 7 Rows x 67.0" Wide + 30.0" Spacing x 6 + 12.0" Side Stone x 2 = 56.09' Base Width 67.0" Chamber Height + 6.0" Stone Cover = 6.08' Field Height 35 Chambers x 386.0 cf + 54.09' Header x 19.30 sf x 2 = 15,597.7 cf Chamber Storage 35 Chambers x 458.4 cf + 54.09' Header x 22.92 sf x 2 = 18,524.0 cf Displacement 38,615.4 cf Field - 18,524.0 cf Chambers = 20,091.4 cf Stone x 40.0% Voids = 8,036.6 cf Stone Storage Chamber Storage + Stone Storage = 23,634.3 cf = 0.543 af Overall Storage Efficiency = 61.2% Overall System Size = 113.17' x 56.09' x 6.08' 35 Chambers 1,430.2 cy Field 744.1 cy Stone MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 118HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Pond 47P: Bluff Creek - West Basin - 60" PIPE Inflow Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)2 1 0 Inflow Area=2.860 ac Peak Elev=908.86' Storage=2,427 cf 1.94 cfs 0.12 cfs MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 119HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Pond 48P: Bluff Creek - East Basin [44] Hint: Outlet device #2 is below defined storage Inflow Area = 7.828 ac, 28.98% Impervious, Inflow Depth = 0.43" for 1.1 Inch Equiv. event Inflow = 5.10 cfs @ 12.16 hrs, Volume= 0.283 af Outflow = 0.35 cfs @ 13.55 hrs, Volume= 0.283 af, Atten= 93%, Lag= 83.5 min Primary = 0.35 cfs @ 13.55 hrs, Volume= 0.283 af Routed to Pond 54P : South-East Temp Basin Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 897.36' @ 13.55 hrs Surf.Area= 40,988 sf Storage= 6,553 cf Plug-Flow detention time= (not calculated: outflow precedes inflow) Center-of-Mass det. time= 237.6 min ( 1,060.9 - 823.2 ) Volume Invert Avail.Storage Storage Description #1 897.20' 340,085 cf Open Pond (Prismatic) Listed below (Recalc) Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 897.20 40,540 0 0 904.00 59,485 340,085 340,085 Device Routing Invert Outlet Devices #1 Primary 895.35'12.0" Round Culvert L= 637.0' RCP, sq.cut end projecting, Ke= 0.500 Inlet / Outlet Invert= 895.35' / 888.98' S= 0.0100 '/' Cc= 0.900 n= 0.017 Concrete sewer w/manholes & inlets, Flow Area= 0.79 sf #2 Device 1 897.00'8.0" Round Temp Outlet Pipe L= 21.0' CPP, mitered to conform to fill, Ke= 0.700 Inlet / Outlet Invert= 897.00' / 895.35' S= 0.0786 '/' Cc= 0.900 n= 0.011 PVC, smooth interior, Flow Area= 0.35 sf Primary OutFlow Max=0.35 cfs @ 13.55 hrs HW=897.36' TW=879.33' (Dynamic Tailwater) 1=Culvert (Passes 0.35 cfs of 2.87 cfs potential flow) 2=Temp Outlet Pipe (Inlet Controls 0.35 cfs @ 1.80 fps) MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 120HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Pond 48P: Bluff Creek - East Basin Inflow Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)5 4 3 2 1 0 Inflow Area=7.828 ac Peak Elev=897.36' Storage=6,553 cf 5.10 cfs 0.35 cfs MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 121HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Pond 52P: South-Center Temp Basin Inflow Area = 8.180 ac, 9.42% Impervious, Inflow Depth = 0.26" for 1.1 Inch Equiv. event Inflow = 1.49 cfs @ 12.30 hrs, Volume= 0.180 af Outflow = 1.47 cfs @ 12.39 hrs, Volume= 0.180 af, Atten= 1%, Lag= 5.3 min Primary = 1.47 cfs @ 12.39 hrs, Volume= 0.180 af Routed to Pond 41.3P : South-West Temp Basin Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 903.48' @ 12.39 hrs Surf.Area= 1,492 sf Storage= 254 cf Plug-Flow detention time= 3.8 min calculated for 0.180 af (100% of inflow) Center-of-Mass det. time= 3.8 min ( 864.9 - 861.1 ) Volume Invert Avail.Storage Storage Description #1 903.14' 49,230 cf Custom Stage Data (Prismatic) Listed below (Recalc) Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 903.14 10 0 0 904.00 3,775 1,628 1,628 905.00 19,015 11,395 13,023 906.00 53,400 36,208 49,230 Device Routing Invert Outlet Devices #1 Primary 903.14'Custom Weir/Orifice, Cv= 2.62 (C= 3.28) Head (feet) 0.00 0.25 0.50 0.75 1.00 2.00 Width (feet) 0.10 4.20 6.25 8.30 12.50 12.50 Primary OutFlow Max=1.47 cfs @ 12.39 hrs HW=903.48' TW=875.87' (Dynamic Tailwater) 1=Custom Weir/Orifice (Weir Controls 1.47 cfs @ 1.56 fps) MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 122HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Pond 52P: South-Center Temp Basin Inflow Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)1 0 Inflow Area=8.180 ac Peak Elev=903.48' Storage=254 cf 1.49 cfs 1.47 cfs MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 123HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Pond 54P: South-East Temp Basin Inflow Area = 13.937 ac, 16.28% Impervious, Inflow Depth = 0.33" for 1.1 Inch Equiv. event Inflow = 1.17 cfs @ 12.50 hrs, Volume= 0.386 af Outflow = 0.34 cfs @ 16.54 hrs, Volume= 0.385 af, Atten= 71%, Lag= 242.7 min Primary = 0.34 cfs @ 16.54 hrs, Volume= 0.385 af Routed to Reach 42.2R : Southeast Secondary = 0.00 cfs @ 0.00 hrs, Volume= 0.000 af Routed to Reach 42.2R : Southeast Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 879.42' @ 16.54 hrs Surf.Area= 12,499 sf Storage= 5,131 cf Plug-Flow detention time= 395.6 min calculated for 0.385 af (100% of inflow) Center-of-Mass det. time= 394.5 min ( 1,408.0 - 1,013.5 ) Volume Invert Avail.Storage Storage Description #1 879.00' 121,861 cf Custom Stage Data (Prismatic) Listed below (Recalc) Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 879.00 11,945 0 0 881.00 14,583 26,528 26,528 883.00 20,500 35,083 61,611 884.00 100,000 60,250 121,861 Device Routing Invert Outlet Devices #1 Primary 874.38'18.0" Round Culvert L= 68.0' RCP, sq.cut end projecting, Ke= 0.500 Inlet / Outlet Invert= 874.38' / 874.05' S= 0.0049 '/' Cc= 0.900 n= 0.013 Concrete pipe, straight & clean, Flow Area= 1.77 sf #2 Device 1 879.00'6.0" Round Culvert L= 29.0' CPP, mitered to conform to fill, Ke= 0.700 Inlet / Outlet Invert= 879.00' / 878.71' S= 0.0100 '/' Cc= 0.900 n= 0.011 PVC, smooth interior, Flow Area= 0.20 sf #3 Secondary 883.85'25.0' long x 50.0' breadth Broad-Crested Rectangular Weir Head (feet) 0.20 0.40 0.60 0.80 1.00 1.20 1.40 1.60 Coef. (English) 2.68 2.70 2.70 2.64 2.63 2.64 2.64 2.63 Primary OutFlow Max=0.34 cfs @ 16.54 hrs HW=879.42' TW=0.00' (Dynamic Tailwater) 1=Culvert (Passes 0.34 cfs of 16.84 cfs potential flow) 2=Culvert (Inlet Controls 0.34 cfs @ 1.95 fps) Secondary OutFlow Max=0.00 cfs @ 0.00 hrs HW=879.00' TW=0.00' (Dynamic Tailwater) 3=Broad-Crested Rectangular Weir ( Controls 0.00 cfs) MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 124HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Pond 54P: South-East Temp Basin Inflow Outflow Primary Secondary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)1 0 Inflow Area=13.937 ac Peak Elev=879.42' Storage=5,131 cf 1.17 cfs 0.34 cfs 0.34 cfs 0.00 cfs MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 125HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Pond 71P: Interlachen [44] Hint: Outlet device #2 is below defined storage Inflow Area = 30.860 ac, 27.80% Impervious, Inflow Depth = 0.50" for 1.1 Inch Equiv. event Inflow = 21.43 cfs @ 12.15 hrs, Volume= 1.277 af Outflow = 2.05 cfs @ 13.13 hrs, Volume= 1.267 af, Atten= 90%, Lag= 59.0 min Primary = 2.05 cfs @ 13.13 hrs, Volume= 1.267 af Routed to Pond 72P : South MNDOT M9 Wetland Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 870.62' @ 13.13 hrs Surf.Area= 52,520 sf Storage= 31,965 cf Plug-Flow detention time= 618.4 min calculated for 1.267 af (99% of inflow) Center-of-Mass det. time= 614.3 min ( 1,409.6 - 795.2 ) Volume Invert Avail.Storage Storage Description #1 870.00' 381,460 cf Custom Stage Data (Prismatic) Listed below (Recalc) Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 870.00 50,570 0 0 872.00 56,860 107,430 107,430 875.00 74,330 196,785 304,215 876.00 80,160 77,245 381,460 Device Routing Invert Outlet Devices #1 Primary 870.00'24.0" Round Culvert L= 33.0' RCP, square edge headwall, Ke= 0.500 Inlet / Outlet Invert= 870.00' / 869.67' S= 0.0100 '/' Cc= 0.900 n= 0.012, Flow Area= 3.14 sf #2 Device 1 866.61'24.0" Round Culvert L= 21.0' RCP, end-section conforming to fill, Ke= 0.500 Inlet / Outlet Invert= 866.50' / 866.61' S= -0.0052 '/' Cc= 0.900 n= 0.012, Flow Area= 3.14 sf Primary OutFlow Max=2.05 cfs @ 13.13 hrs HW=870.62' TW=869.56' (Dynamic Tailwater) 1=Culvert (Barrel Controls 2.05 cfs @ 3.70 fps) 2=Culvert (Passes 2.05 cfs of 11.91 cfs potential flow) MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 126HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Pond 71P: Interlachen Inflow Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 Inflow Area=30.860 ac Peak Elev=870.62' Storage=31,965 cf 21.43 cfs 2.05 cfs MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 127HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Pond 72P: South MNDOT M9 Wetland [44] Hint: Outlet device #3 is below defined storage Inflow Area = 112.205 ac, 11.96% Impervious, Inflow Depth = 0.25" for 1.1 Inch Equiv. event Inflow = 4.04 cfs @ 12.65 hrs, Volume= 2.367 af Outflow = 0.33 cfs @ 27.91 hrs, Volume= 2.138 af, Atten= 92%, Lag= 916.0 min Primary = 0.33 cfs @ 27.91 hrs, Volume= 2.138 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 869.78' @ 27.91 hrs Surf.Area= 338,077 sf Storage= 78,042 cf Plug-Flow detention time= 4,395.0 min calculated for 2.138 af (90% of inflow) Center-of-Mass det. time= 4,129.3 min ( 5,449.6 - 1,320.3 ) Volume Invert Avail.Storage Storage Description #1 869.50' 2,891,990 cf Custom Stage Data (Prismatic) Listed below (Recalc) Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 869.50 214,970 0 0 870.00 433,070 162,010 162,010 871.00 489,600 461,335 623,345 872.00 532,650 511,125 1,134,470 875.00 639,030 1,757,520 2,891,990 Device Routing Invert Outlet Devices #1 Primary 869.00'18.0" Round Culvert L= 276.0' RCP, square edge headwall, Ke= 0.500 Inlet / Outlet Invert= 869.00' / 866.93' S= 0.0075 '/' Cc= 0.900 n= 0.013 Concrete pipe, straight & clean, Flow Area= 1.77 sf #2 Device 1 869.50'12.0" Vert. Orifice/Grate C= 0.600 Limited to weir flow at low heads #3 Device 2 869.36'18.0" Round Culvert L= 172.0' RCP, end-section conforming to fill, Ke= 0.500 Inlet / Outlet Invert= 868.50' / 869.36' S= -0.0050 '/' Cc= 0.900 n= 0.013 Concrete pipe, straight & clean, Flow Area= 1.77 sf Primary OutFlow Max=0.33 cfs @ 27.91 hrs HW=869.78' (Free Discharge) 1=Culvert (Passes 0.33 cfs of 2.76 cfs potential flow) 2=Orifice/Grate (Orifice Controls 0.33 cfs @ 1.81 fps) 3=Culvert (Passes 0.33 cfs of 0.90 cfs potential flow) MSE 24-hr 3 1.1 Inch Equiv. Rainfall=1.32"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 128HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Pond 72P: South MNDOT M9 Wetland Inflow Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)4 3 2 1 0 Inflow Area=112.205 ac Peak Elev=869.78' Storage=78,042 cf 4.04 cfs 0.33 cfs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 129HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Time span=0.00-360.00 hrs, dt=0.01 hrs, 36001 points Runoff by SCS TR-20 method, UH=SCS, Weighted-CN Reach routing by Dyn-Stor-Ind method - Pond routing by Dyn-Stor-Ind method Runoff Area=21,220 sf 0.00% Impervious Runoff Depth=1.15"Subcatchment 13.2S: Front Yards - South Tc=5.0 min CN=80 Runoff=1.04 cfs 0.047 af Runoff Area=5,069 sf 76.64% Impervious Runoff Depth=2.22"Subcatchment 16oS: East Offsite Tc=5.0 min CN=94 Runoff=0.47 cfs 0.022 af Runoff Area=63,545 sf 52.82% Impervious Runoff Depth=1.87"Subcatchment 40.4S: So. Villas Private Flow Length=845' Tc=13.0 min CN=90 Runoff=3.54 cfs 0.227 af Runoff Area=157,310 sf 5.27% Impervious Runoff Depth=1.21"Subcatchment 41.3S: South-West Flow Length=285' Tc=8.9 min CN=81 Runoff=6.66 cfs 0.365 af Runoff Area=21,960 sf 0.00% Impervious Runoff Depth=1.15"Subcatchment 42.1S: South Fringe Tc=5.0 min CN=80 Runoff=1.08 cfs 0.048 af Runoff Area=8,870 sf 0.00% Impervious Runoff Depth=1.04"Subcatchment 42.2S: Southeast Fringe Tc=5.0 min CN=78 Runoff=0.39 cfs 0.018 af Runoff Area=140,400 sf 0.00% Impervious Runoff Depth=0.16"Subcatchment 43.1S: East Woods Flow Length=530' Tc=15.2 min CN=55 Runoff=0.19 cfs 0.043 af Runoff Area=76,080 sf 0.00% Impervious Runoff Depth=0.16"Subcatchment 43.2S: Northeast Woods Flow Length=623' Tc=19.5 min CN=55 Runoff=0.10 cfs 0.024 af Runoff Area=446,125 sf 0.00% Impervious Runoff Depth=0.16"Subcatchment 44S: North Woods Tc=20.0 min CN=55 Runoff=0.59 cfs 0.138 af Runoff Area=63,170 sf 0.00% Impervious Runoff Depth=1.15"Subcatchment 46S: Direct to Tri. Basin Flow Length=755' Tc=11.5 min CN=80 Runoff=2.25 cfs 0.139 af Runoff Area=57,455 sf 33.07% Impervious Runoff Depth=1.55"Subcatchment 46uS: Rear Yards of South Flow Length=755' Tc=11.5 min CN=86 Runoff=2.82 cfs 0.171 af Runoff Area=103,380 sf 49.41% Impervious Runoff Depth=1.78"Subcatchment 47S: Bluff Creek Pkwy - Tc=10.0 min CN=89 Runoff=6.22 cfs 0.353 af Runoff Area=168,700 sf 56.27% Impervious Runoff Depth=2.04"Subcatchment 48S: Bluff Creek Pkwy - Tc=10.0 min CN=92 Runoff=11.46 cfs 0.658 af Runoff Area=292,770 sf 0.00% Impervious Runoff Depth=1.15"Subcatchment 52S: South - Center Flow Length=660' Slope=0.0100 '/' Tc=27.0 min CN=80 Runoff=6.75 cfs 0.646 af Runoff Area=266,110 sf 0.00% Impervious Runoff Depth=1.15"Subcatchment 54S: South - East Flow Length=418' Tc=27.7 min CN=80 Runoff=6.05 cfs 0.587 af Runoff Area=167,215 sf 0.00% Impervious Runoff Depth=1.15"Subcatchment 55S: Direct to Bluff Creek - Tc=5.0 min CN=80 Runoff=8.21 cfs 0.369 af MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 130HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Runoff Area=2.080 ac 0.00% Impervious Runoff Depth=1.41"Subcatchment 71-1S: Interlacn Subcatch 1 Tc=7.0 min CN=84 Runoff=4.95 cfs 0.244 af Runoff Area=1.160 ac 100.00% Impervious Runoff Depth=2.87"Subcatchment 71-2S: Interlacn Subcatch 2 Tc=7.0 min CN=100 Runoff=4.76 cfs 0.277 af Runoff Area=0.810 ac 0.00% Impervious Runoff Depth=2.22"Subcatchment 72S: 6_Temp Tc=9.0 min CN=94 Runoff=2.69 cfs 0.150 af Runoff Area=2.360 ac 100.00% Impervious Runoff Depth=2.64"Subcatchment 73S: N68 Tc=7.0 min CN=98 Runoff=9.53 cfs 0.519 af Runoff Area=1.020 ac 0.00% Impervious Runoff Depth=1.87"Subcatchment 74S: 5_Temp Tc=9.0 min CN=90 Runoff=2.91 cfs 0.159 af Runoff Area=3.010 ac 100.00% Impervious Runoff Depth=2.64"Subcatchment 75S: 3225 Tc=7.0 min CN=98 Runoff=12.15 cfs 0.662 af Runoff Area=8.310 ac 0.00% Impervious Runoff Depth=1.15"Subcatchment 76S: 3236 Tc=14.0 min CN=80 Runoff=11.70 cfs 0.799 af Runoff Area=0.950 ac 0.00% Impervious Runoff Depth=1.34"Subcatchment 77S: 3238 Tc=7.0 min CN=83 Runoff=2.15 cfs 0.106 af Runoff Area=0.630 ac 0.00% Impervious Runoff Depth=1.95"Subcatchment 78S: 3243 Tc=7.0 min CN=91 Runoff=2.06 cfs 0.102 af Runoff Area=2.050 ac 100.00% Impervious Runoff Depth=2.64"Subcatchment 79S: 3245 Tc=7.0 min CN=98 Runoff=8.27 cfs 0.451 af Runoff Area=0.350 ac 0.00% Impervious Runoff Depth=1.87"Subcatchment 80S: 3250 Tc=7.0 min CN=90 Runoff=1.10 cfs 0.054 af Runoff Area=5.950 ac 0.00% Impervious Runoff Depth=0.93"Subcatchment 81S: 3343 Tc=19.0 min CN=76 Runoff=5.57 cfs 0.460 af Runoff Area=1.480 ac 0.00% Impervious Runoff Depth=1.04"Subcatchment 82S: 3345 Tc=7.0 min CN=78 Runoff=2.51 cfs 0.128 af Runoff Area=0.700 ac 0.00% Impervious Runoff Depth=1.63"Subcatchment 83S: 3348 Tc=7.0 min CN=87 Runoff=1.93 cfs 0.095 af Runoff Area=2.100 ac 0.00% Impervious Runoff Depth=1.09"Subcatchment 84S: SE12 Tc=11.0 min CN=79 Runoff=3.13 cfs 0.192 af Runoff Area=4.530 ac 0.00% Impervious Runoff Depth=0.60"Subcatchment 85S: 1S Tc=15.0 min CN=69 Runoff=2.68 cfs 0.227 af Runoff Area=5.800 ac 0.00% Impervious Runoff Depth=0.60"Subcatchment 86S: 2S Tc=25.0 min CN=69 Runoff=2.66 cfs 0.291 af MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 131HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Runoff Area=21.638 ac 0.00% Impervious Runoff Depth=0.93"Subcatchment 87S: M9 Tc=29.0 min CN=76 Runoff=16.15 cfs 1.674 af Inflow=6.80 cfs 3.851 afReach 40R: South Drainage Outflow=6.80 cfs 3.851 af Inflow=1.60 cfs 1.700 afReach 42.2R: Southeast Outflow=1.60 cfs 1.700 af Inflow=5.69 cfs 2.107 afReach 44R: Southwest Outflow=5.69 cfs 2.107 af Avg. Flow Depth=0.23' Max Vel=3.36 fps Inflow=2.82 cfs 0.171 afReach 46uR: South Swale - at East n=0.025 L=34.0' S=0.0294 '/' Capacity=11.72 cfs Outflow=2.82 cfs 0.171 af Inflow=1.47 cfs 0.399 afReach 48R: Developed Area To Wetland 4 Outflow=1.47 cfs 0.399 af Avg. Flow Depth=1.24' Max Vel=7.29 fps Inflow=14.88 cfs 0.828 afReach 72R: N68 24.0" Round Pipe n=0.012 L=63.0' S=0.0075 '/' Capacity=21.17 cfs Outflow=14.88 cfs 0.828 af Peak Elev=877.58' Storage=28,890 cf Inflow=14.01 cfs 1.548 afPond 41.3P: South-West Temp Basin Primary=2.14 cfs 1.332 af Secondary=1.94 cfs 0.215 af Outflow=4.08 cfs 1.547 af Peak Elev=884.26' Storage=296 cf Inflow=2.05 cfs 0.537 afPond 44P: Wetland 4 Outflow=2.05 cfs 0.537 af Peak Elev=888.80' Storage=4,296 cf Inflow=5.07 cfs 0.310 afPond 46P: Triangle Basin Primary=2.58 cfs 0.310 af Secondary=0.00 cfs 0.000 af Outflow=2.58 cfs 0.310 af Peak Elev=910.11' Storage=7,996 cf Inflow=6.96 cfs 0.399 afPond 47P: Bluff Creek - West Basin - 60" Outflow=1.47 cfs 0.399 af Peak Elev=897.85' Storage=26,823 cf Inflow=18.55 cfs 1.048 afPond 48P: Bluff Creek - East Basin Outflow=1.06 cfs 1.048 af Peak Elev=903.88' Storage=1,210 cf Inflow=8.65 cfs 0.873 afPond 52P: South-Center Temp Basin Outflow=8.55 cfs 0.873 af Peak Elev=880.87' Storage=24,610 cf Inflow=7.00 cfs 1.636 afPond 54P: South-East Temp Basin Primary=1.06 cfs 1.634 af Secondary=0.00 cfs 0.000 af Outflow=1.06 cfs 1.634 af Peak Elev=871.72' Storage=91,701 cf Inflow=64.95 cfs 4.207 afPond 71P: Interlachen Outflow=11.21 cfs 4.196 af Peak Elev=870.35' Storage=316,560 cf Inflow=36.93 cfs 10.431 afPond 72P: South MNDOT M9 Wetland Outflow=2.23 cfs 10.148 af Total Runoff Area = 112.205 ac Runoff Volume = 10.445 af Average Runoff Depth = 1.12" 88.04% Pervious = 98.787 ac 11.96% Impervious = 13.418 ac MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 132HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 13.2S: Front Yards - South Rowhomes Runoff = 1.04 cfs @ 12.08 hrs, Volume= 0.047 af, Depth= 1.15" Routed to Pond 47P : Bluff Creek - West Basin - 60" PIPE Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Area (sf) CN Description 21,220 80 >75% Grass cover, Good, HSG D 21,220 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 5.0 Direct Entry, Subcatchment 13.2S: Front Yards - South Rowhomes Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)1 0 MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Runoff Area=21,220 sf Runoff Volume=0.047 af Runoff Depth=1.15" Tc=5.0 min CN=80 1.04 cfs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 133HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 16oS: East Offsite Runoff = 0.47 cfs @ 12.07 hrs, Volume= 0.022 af, Depth= 2.22" Routed to Pond 48P : Bluff Creek - East Basin Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Area (sf) CN Description 1,184 80 >75% Grass cover, Good, HSG D 3,885 98 Paved parking, HSG D 5,069 94 Weighted Average 1,184 23.36% Pervious Area 3,885 76.64% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 5.0 Direct Entry, Subcatchment 16oS: East Offsite Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.52 0.5 0.48 0.46 0.44 0.42 0.4 0.38 0.36 0.34 0.32 0.3 0.28 0.26 0.24 0.22 0.2 0.18 0.16 0.14 0.12 0.1 0.08 0.06 0.04 0.02 0 MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Runoff Area=5,069 sf Runoff Volume=0.022 af Runoff Depth=2.22" Tc=5.0 min CN=94 0.47 cfs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 134HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 40.4S: So. Villas Private Drive Runoff = 3.54 cfs @ 12.18 hrs, Volume= 0.227 af, Depth= 1.87" Routed to Pond 52P : South-Center Temp Basin Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Area (sf) CN Description 29,980 80 >75% Grass cover, Good, HSG D 33,565 98 Paved parking, HSG D 63,545 90 Weighted Average 29,980 47.18% Pervious Area 33,565 52.82% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 8.3 70 0.0430 0.14 Sheet Flow, Lawn Grass: Dense n= 0.240 P2= 2.87" 4.7 775 0.0180 2.72 Shallow Concentrated Flow, Street Flow Paved Kv= 20.3 fps 13.0 845 Total Subcatchment 40.4S: So. Villas Private Drive Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)3 2 1 0 MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Runoff Area=63,545 sf Runoff Volume=0.227 af Runoff Depth=1.87" Flow Length=845' Tc=13.0 min CN=90 3.54 cfs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 135HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 41.3S: South-West Runoff = 6.66 cfs @ 12.13 hrs, Volume= 0.365 af, Depth= 1.21" Routed to Pond 41.3P : South-West Temp Basin Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Area (sf) CN Description 149,020 80 >75% Grass cover, Good, HSG D * 8,290 100 Water 157,310 81 Weighted Average 149,020 94.73% Pervious Area 8,290 5.27% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 7.5 100 0.0450 0.22 Sheet Flow, Grass: Short n= 0.150 P2= 2.87" 1.0 90 0.0450 1.48 Shallow Concentrated Flow, Short Grass Pasture Kv= 7.0 fps 0.4 95 0.3333 4.04 Shallow Concentrated Flow, Short Grass Pasture Kv= 7.0 fps 8.9 285 Total Subcatchment 41.3S: South-West Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)7 6 5 4 3 2 1 0 MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Runoff Area=157,310 sf Runoff Volume=0.365 af Runoff Depth=1.21" Flow Length=285' Tc=8.9 min CN=81 6.66 cfs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 136HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 42.1S: South Fringe Runoff = 1.08 cfs @ 12.08 hrs, Volume= 0.048 af, Depth= 1.15" Routed to Reach 42.2R : Southeast Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Area (sf) CN Description 21,960 80 >75% Grass cover, Good, HSG D 21,960 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 5.0 Direct Entry, Subcatchment 42.1S: South Fringe Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)1 0 MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Runoff Area=21,960 sf Runoff Volume=0.048 af Runoff Depth=1.15" Tc=5.0 min CN=80 1.08 cfs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 137HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 42.2S: Southeast Fringe Runoff = 0.39 cfs @ 12.08 hrs, Volume= 0.018 af, Depth= 1.04" Routed to Reach 42.2R : Southeast Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Area (sf) CN Description 8,870 78 Meadow, non-grazed, HSG D 8,870 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 5.0 Direct Entry, Subcatchment 42.2S: Southeast Fringe Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.42 0.4 0.38 0.36 0.34 0.32 0.3 0.28 0.26 0.24 0.22 0.2 0.18 0.16 0.14 0.12 0.1 0.08 0.06 0.04 0.02 0 MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Runoff Area=8,870 sf Runoff Volume=0.018 af Runoff Depth=1.04" Tc=5.0 min CN=78 0.39 cfs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 138HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 43.1S: East Woods Runoff = 0.19 cfs @ 12.58 hrs, Volume= 0.043 af, Depth= 0.16" Routed to Reach 40R : South Drainage Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Area (sf) CN Description 140,400 55 Woods, Good, HSG B 140,400 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 11.1 75 0.0670 0.11 Sheet Flow, Woods: Light underbrush n= 0.400 P2= 2.87" 4.1 455 0.1380 1.86 Shallow Concentrated Flow, Woodland Kv= 5.0 fps 15.2 530 Total Subcatchment 43.1S: East Woods Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.21 0.2 0.19 0.18 0.17 0.16 0.15 0.14 0.13 0.12 0.11 0.1 0.09 0.08 0.07 0.06 0.05 0.04 0.03 0.02 0.01 0 MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Runoff Area=140,400 sf Runoff Volume=0.043 af Runoff Depth=0.16" Flow Length=530' Tc=15.2 min CN=55 0.19 cfs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 139HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 43.2S: Northeast Woods Runoff = 0.10 cfs @ 12.62 hrs, Volume= 0.024 af, Depth= 0.16" Routed to Reach 44R : Southwest Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Area (sf) CN Description 76,080 55 Woods, Good, HSG B 76,080 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 14.2 100 0.0650 0.12 Sheet Flow, Woods: Light underbrush n= 0.400 P2= 2.87" 5.3 523 0.1080 1.64 Shallow Concentrated Flow, Woodland Kv= 5.0 fps 19.5 623 Total Subcatchment 43.2S: Northeast Woods Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.11 0.105 0.1 0.095 0.09 0.085 0.08 0.075 0.07 0.065 0.06 0.055 0.05 0.045 0.04 0.035 0.03 0.025 0.02 0.015 0.01 0.005 0 MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Runoff Area=76,080 sf Runoff Volume=0.024 af Runoff Depth=0.16" Flow Length=623' Tc=19.5 min CN=55 0.10 cfs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 140HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 44S: North Woods Runoff = 0.59 cfs @ 12.62 hrs, Volume= 0.138 af, Depth= 0.16" Routed to Pond 44P : Wetland 4 Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Area (sf) CN Description 446,125 55 Woods, Good, HSG B 446,125 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 20.0 Direct Entry, Subcatchment 44S: North Woods Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.65 0.6 0.55 0.5 0.45 0.4 0.35 0.3 0.25 0.2 0.15 0.1 0.05 0 MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Runoff Area=446,125 sf Runoff Volume=0.138 af Runoff Depth=0.16" Tc=20.0 min CN=55 0.59 cfs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 141HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 46S: Direct to Tri. Basin Runoff = 2.25 cfs @ 12.16 hrs, Volume= 0.139 af, Depth= 1.15" Routed to Pond 46P : Triangle Basin Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Area (sf) CN Description 63,170 80 >75% Grass cover, Good, HSG D 63,170 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 3.4 40 0.0500 0.19 Sheet Flow, Grass: Short n= 0.150 P2= 2.87" 8.1 715 0.0440 1.47 Shallow Concentrated Flow, Short Grass Pasture Kv= 7.0 fps 11.5 755 Total Subcatchment 46S: Direct to Tri. Basin Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)2 1 0 MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Runoff Area=63,170 sf Runoff Volume=0.139 af Runoff Depth=1.15" Flow Length=755' Tc=11.5 min CN=80 2.25 cfs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 142HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 46uS: Rear Yards of South Townhomes Runoff = 2.82 cfs @ 12.16 hrs, Volume= 0.171 af, Depth= 1.55" Routed to Reach 46uR : South Swale - at East Property Line of THs Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Area (sf) CN Description 38,455 80 >75% Grass cover, Good, HSG D 19,000 98 Unconnected roofs, HSG D 57,455 86 Weighted Average 38,455 66.93% Pervious Area 19,000 33.07% Impervious Area 19,000 100.00% Unconnected Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 3.4 40 0.0500 0.19 Sheet Flow, Grass: Short n= 0.150 P2= 2.87" 8.1 715 0.0440 1.47 Shallow Concentrated Flow, Short Grass Pasture Kv= 7.0 fps 11.5 755 Total Subcatchment 46uS: Rear Yards of South Townhomes Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)3 2 1 0 MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Runoff Area=57,455 sf Runoff Volume=0.171 af Runoff Depth=1.55" Flow Length=755' Tc=11.5 min CN=86 2.82 cfs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 143HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 47S: Bluff Creek Pkwy - West Runoff = 6.22 cfs @ 12.14 hrs, Volume= 0.353 af, Depth= 1.78" Routed to Pond 47P : Bluff Creek - West Basin - 60" PIPE Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Area (sf) CN Description * 52,305 80 >75% Grass cover, Good, HSG D 51,075 98 Paved roads w/curbs & sewers, HSG D 103,380 89 Weighted Average 52,305 50.59% Pervious Area 51,075 49.41% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 10.0 Direct Entry, Subcatchment 47S: Bluff Creek Pkwy - West Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)6 5 4 3 2 1 0 MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Runoff Area=103,380 sf Runoff Volume=0.353 af Runoff Depth=1.78" Tc=10.0 min CN=89 6.22 cfs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 144HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 48S: Bluff Creek Pkwy - East Runoff = 11.46 cfs @ 12.13 hrs, Volume= 0.658 af, Depth= 2.04" Routed to Pond 48P : Bluff Creek - East Basin Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Area (sf) CN Description * 73,780 84 >75% Grass cover, Good, HSG D 94,920 98 Paved roads w/curbs & sewers, HSG D 168,700 92 Weighted Average 73,780 43.73% Pervious Area 94,920 56.27% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 10.0 Direct Entry, Subcatchment 48S: Bluff Creek Pkwy - East Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)12 11 10 9 8 7 6 5 4 3 2 1 0 MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Runoff Area=168,700 sf Runoff Volume=0.658 af Runoff Depth=2.04" Tc=10.0 min CN=92 11.46 cfs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 145HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 52S: South - Center Runoff = 6.75 cfs @ 12.39 hrs, Volume= 0.646 af, Depth= 1.15" Routed to Pond 52P : South-Center Temp Basin Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Area (sf) CN Description 292,770 80 >75% Grass cover, Good, HSG D 292,770 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 13.7 100 0.0100 0.12 Sheet Flow, Grass: Short n= 0.150 P2= 2.87" 13.3 560 0.0100 0.70 Shallow Concentrated Flow, Short Grass Pasture Kv= 7.0 fps 27.0 660 Total Subcatchment 52S: South - Center Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)7 6 5 4 3 2 1 0 MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Runoff Area=292,770 sf Runoff Volume=0.646 af Runoff Depth=1.15" Flow Length=660' Slope=0.0100 '/' Tc=27.0 min CN=80 6.75 cfs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 146HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 54S: South - East Runoff = 6.05 cfs @ 12.40 hrs, Volume= 0.587 af, Depth= 1.15" Routed to Pond 54P : South-East Temp Basin Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Area (sf) CN Description 266,110 80 >75% Grass cover, Good, HSG D 266,110 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 14.3 168 0.0250 0.20 Sheet Flow, Grass: Short n= 0.150 P2= 2.87" 8.4 250 0.0050 0.49 Shallow Concentrated Flow, Short Grass Pasture Kv= 7.0 fps 5.0 Direct Entry, Pipe flow 27.7 418 Total Subcatchment 54S: South - East Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)6 5 4 3 2 1 0 MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Runoff Area=266,110 sf Runoff Volume=0.587 af Runoff Depth=1.15" Flow Length=418' Tc=27.7 min CN=80 6.05 cfs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 147HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 55S: Direct to Bluff Creek - East Basin Runoff = 8.21 cfs @ 12.08 hrs, Volume= 0.369 af, Depth= 1.15" Routed to Pond 48P : Bluff Creek - East Basin Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Area (sf) CN Description 167,215 80 >75% Grass cover, Good, HSG D 167,215 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 5.0 Direct Entry, Subcatchment 55S: Direct to Bluff Creek - East Basin Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)9 8 7 6 5 4 3 2 1 0 MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Runoff Area=167,215 sf Runoff Volume=0.369 af Runoff Depth=1.15" Tc=5.0 min CN=80 8.21 cfs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 148HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 71-1S: Interlacn Subcatch 1 Runoff = 4.95 cfs @ 12.10 hrs, Volume= 0.244 af, Depth= 1.41" Routed to Pond 71P : Interlachen Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Area (ac) CN Description * 2.080 84 Weoghted 2.080 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 7.0 Direct Entry, Subcatchment 71-1S: Interlacn Subcatch 1 Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)5 4 3 2 1 0 MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Runoff Area=2.080 ac Runoff Volume=0.244 af Runoff Depth=1.41" Tc=7.0 min CN=84 4.95 cfs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 149HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 71-2S: Interlacn Subcatch 2 Runoff = 4.76 cfs @ 12.09 hrs, Volume= 0.277 af, Depth= 2.87" Routed to Pond 71P : Interlachen Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Area (ac) CN Description * 1.160 100 1.160 100.00% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 7.0 Direct Entry, Subcatchment 71-2S: Interlacn Subcatch 2 Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)5 4 3 2 1 0 MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Runoff Area=1.160 ac Runoff Volume=0.277 af Runoff Depth=2.87" Tc=7.0 min CN=100 4.76 cfs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 150HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 72S: 6_Temp Runoff = 2.69 cfs @ 12.12 hrs, Volume= 0.150 af, Depth= 2.22" Routed to Reach 72R : N68 Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Area (ac) CN Description * 0.810 94 Weighted 0.810 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 9.0 Direct Entry, Subcatchment 72S: 6_Temp Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)3 2 1 0 MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Runoff Area=0.810 ac Runoff Volume=0.150 af Runoff Depth=2.22" Tc=9.0 min CN=94 2.69 cfs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 151HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 73S: N68 Runoff = 9.53 cfs @ 12.09 hrs, Volume= 0.519 af, Depth= 2.64" Routed to Reach 72R : N68 Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Area (ac) CN Description * 2.360 98 Weighted 2.360 100.00% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 7.0 Direct Entry, Subcatchment 73S: N68 Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)10 9 8 7 6 5 4 3 2 1 0 MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Runoff Area=2.360 ac Runoff Volume=0.519 af Runoff Depth=2.64" Tc=7.0 min CN=98 9.53 cfs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 152HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 74S: 5_Temp Runoff = 2.91 cfs @ 12.12 hrs, Volume= 0.159 af, Depth= 1.87" Routed to Reach 72R : N68 Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Area (ac) CN Description * 1.020 90 1.020 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 9.0 Direct Entry, Subcatchment 74S: 5_Temp Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)3 2 1 0 MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Runoff Area=1.020 ac Runoff Volume=0.159 af Runoff Depth=1.87" Tc=9.0 min CN=90 2.91 cfs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 153HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 75S: 3225 Runoff = 12.15 cfs @ 12.09 hrs, Volume= 0.662 af, Depth= 2.64" Routed to Pond 71P : Interlachen Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Area (ac) CN Description * 3.010 98 Weighted 3.010 100.00% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 7.0 Direct Entry, Subcatchment 75S: 3225 Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)13 12 11 10 9 8 7 6 5 4 3 2 1 0 MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Runoff Area=3.010 ac Runoff Volume=0.662 af Runoff Depth=2.64" Tc=7.0 min CN=98 12.15 cfs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 154HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 76S: 3236 Runoff = 11.70 cfs @ 12.20 hrs, Volume= 0.799 af, Depth= 1.15" Routed to Pond 71P : Interlachen Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Area (ac) CN Description * 8.310 80 Weighted 8.310 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 14.0 Direct Entry, Subcatchment 76S: 3236 Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)13 12 11 10 9 8 7 6 5 4 3 2 1 0 MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Runoff Area=8.310 ac Runoff Volume=0.799 af Runoff Depth=1.15" Tc=14.0 min CN=80 11.70 cfs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 155HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 77S: 3238 Runoff = 2.15 cfs @ 12.10 hrs, Volume= 0.106 af, Depth= 1.34" Routed to Pond 71P : Interlachen Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Area (ac) CN Description * 0.950 83 Weighted 0.950 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 7.0 Direct Entry, Subcatchment 77S: 3238 Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)2 1 0 MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Runoff Area=0.950 ac Runoff Volume=0.106 af Runoff Depth=1.34" Tc=7.0 min CN=83 2.15 cfs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 156HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 78S: 3243 Runoff = 2.06 cfs @ 12.10 hrs, Volume= 0.102 af, Depth= 1.95" Routed to Pond 71P : Interlachen Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Area (ac) CN Description * 0.630 91 Weighted 0.630 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 7.0 Direct Entry, Subcatchment 78S: 3243 Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)2 1 0 MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Runoff Area=0.630 ac Runoff Volume=0.102 af Runoff Depth=1.95" Tc=7.0 min CN=91 2.06 cfs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 157HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 79S: 3245 Runoff = 8.27 cfs @ 12.09 hrs, Volume= 0.451 af, Depth= 2.64" Routed to Pond 71P : Interlachen Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Area (ac) CN Description * 2.050 98 Weighted 2.050 100.00% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 7.0 Direct Entry, Subcatchment 79S: 3245 Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)9 8 7 6 5 4 3 2 1 0 MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Runoff Area=2.050 ac Runoff Volume=0.451 af Runoff Depth=2.64" Tc=7.0 min CN=98 8.27 cfs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 158HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 80S: 3250 Runoff = 1.10 cfs @ 12.10 hrs, Volume= 0.054 af, Depth= 1.87" Routed to Pond 71P : Interlachen Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Area (ac) CN Description * 0.350 90 Weighted 0.350 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 7.0 Direct Entry, Subcatchment 80S: 3250 Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)1 0 MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Runoff Area=0.350 ac Runoff Volume=0.054 af Runoff Depth=1.87" Tc=7.0 min CN=90 1.10 cfs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 159HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 81S: 3343 Runoff = 5.57 cfs @ 12.27 hrs, Volume= 0.460 af, Depth= 0.93" Routed to Pond 71P : Interlachen Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Area (ac) CN Description * 5.950 76 Weighted 5.950 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 19.0 Direct Entry, Subcatchment 81S: 3343 Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)6 5 4 3 2 1 0 MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Runoff Area=5.950 ac Runoff Volume=0.460 af Runoff Depth=0.93" Tc=19.0 min CN=76 5.57 cfs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 160HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 82S: 3345 Runoff = 2.51 cfs @ 12.10 hrs, Volume= 0.128 af, Depth= 1.04" Routed to Pond 71P : Interlachen Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Area (ac) CN Description * 1.480 78 Weighted 1.480 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 7.0 Direct Entry, Subcatchment 82S: 3345 Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)2 1 0 MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Runoff Area=1.480 ac Runoff Volume=0.128 af Runoff Depth=1.04" Tc=7.0 min CN=78 2.51 cfs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 161HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 83S: 3348 Runoff = 1.93 cfs @ 12.10 hrs, Volume= 0.095 af, Depth= 1.63" Routed to Pond 71P : Interlachen Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Area (ac) CN Description * 0.700 87 Weighted 0.700 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 7.0 Direct Entry, Subcatchment 83S: 3348 Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)2 1 0 MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Runoff Area=0.700 ac Runoff Volume=0.095 af Runoff Depth=1.63" Tc=7.0 min CN=87 1.93 cfs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 162HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 84S: SE12 Runoff = 3.13 cfs @ 12.16 hrs, Volume= 0.192 af, Depth= 1.09" Routed to Pond 72P : South MNDOT M9 Wetland Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Area (ac) CN Description * 2.100 79 Weighted 2.100 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 11.0 Direct Entry, Subcatchment 84S: SE12 Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)3 2 1 0 MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Runoff Area=2.100 ac Runoff Volume=0.192 af Runoff Depth=1.09" Tc=11.0 min CN=79 3.13 cfs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 163HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 85S: 1S Runoff = 2.68 cfs @ 12.24 hrs, Volume= 0.227 af, Depth= 0.60" Routed to Pond 72P : South MNDOT M9 Wetland Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Area (ac) CN Description * 4.530 69 Weighted 4.530 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 15.0 Direct Entry, Subcatchment 85S: 1S Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)2 1 0 MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Runoff Area=4.530 ac Runoff Volume=0.227 af Runoff Depth=0.60" Tc=15.0 min CN=69 2.68 cfs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 164HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 86S: 2S Runoff = 2.66 cfs @ 12.39 hrs, Volume= 0.291 af, Depth= 0.60" Routed to Pond 72P : South MNDOT M9 Wetland Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Area (ac) CN Description * 5.800 69 Weighted 5.800 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 25.0 Direct Entry, Subcatchment 86S: 2S Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)2 1 0 MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Runoff Area=5.800 ac Runoff Volume=0.291 af Runoff Depth=0.60" Tc=25.0 min CN=69 2.66 cfs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 165HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 87S: M9 Runoff = 16.15 cfs @ 12.41 hrs, Volume= 1.674 af, Depth= 0.93" Routed to Pond 72P : South MNDOT M9 Wetland Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Area (ac) CN Description * 21.638 76 Weighted 21.638 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 29.0 Direct Entry, Subcatchment 87S: M9 Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Runoff Area=21.638 ac Runoff Volume=1.674 af Runoff Depth=0.93" Tc=29.0 min CN=76 16.15 cfs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 166HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Reach 40R: South Drainage [40] Hint: Not Described (Outflow=Inflow) Inflow Area = 47.277 ac, 10.23% Impervious, Inflow Depth = 0.98" for 2y 24hr event Inflow = 6.80 cfs @ 12.92 hrs, Volume= 3.851 af Outflow = 6.80 cfs @ 12.92 hrs, Volume= 3.851 af, Atten= 0%, Lag= 0.0 min Routed to Pond 72P : South MNDOT M9 Wetland Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Reach 40R: South Drainage Inflow Outflow Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)7 6 5 4 3 2 1 0 Inflow Area=47.277 ac 6.80 cfs 6.80 cfs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 167HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Reach 42.2R: Southeast [40] Hint: Not Described (Outflow=Inflow) Inflow Area = 14.645 ac, 15.49% Impervious, Inflow Depth = 1.39" for 2y 24hr event Inflow = 1.60 cfs @ 12.08 hrs, Volume= 1.700 af Outflow = 1.60 cfs @ 12.08 hrs, Volume= 1.700 af, Atten= 0%, Lag= 0.0 min Routed to Reach 40R : South Drainage Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Reach 42.2R: Southeast Inflow Outflow Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)1 0 Inflow Area=14.645 ac 1.60 cfs 1.60 cfs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 168HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Reach 44R: Southwest [40] Hint: Not Described (Outflow=Inflow) Inflow Area = 29.409 ac, 8.74% Impervious, Inflow Depth = 0.86" for 2y 24hr event Inflow = 5.69 cfs @ 12.86 hrs, Volume= 2.107 af Outflow = 5.69 cfs @ 12.86 hrs, Volume= 2.107 af, Atten= 0%, Lag= 0.0 min Routed to Reach 40R : South Drainage Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Reach 44R: Southwest Inflow Outflow Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)6 5 4 3 2 1 0 Inflow Area=29.409 ac 5.69 cfs 5.69 cfs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 169HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Reach 46uR: South Swale - at East Property Line of THs Inflow Area = 1.319 ac, 33.07% Impervious, Inflow Depth = 1.55" for 2y 24hr event Inflow = 2.82 cfs @ 12.16 hrs, Volume= 0.171 af Outflow = 2.82 cfs @ 12.16 hrs, Volume= 0.171 af, Atten= 0%, Lag= 0.1 min Routed to Pond 46P : Triangle Basin Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Max. Velocity= 3.36 fps, Min. Travel Time= 0.2 min Avg. Velocity = 0.87 fps, Avg. Travel Time= 0.7 min Peak Storage= 29 cf @ 12.16 hrs Average Depth at Peak Storage= 0.23' , Surface Width= 4.37' Bank-Full Depth= 0.50' Flow Area= 2.3 sf, Capacity= 11.72 cfs 3.00' x 0.50' deep channel, n= 0.025 Short grass Side Slope Z-value= 3.0 '/' Top Width= 6.00' Length= 34.0' Slope= 0.0294 '/' Inlet Invert= 894.00', Outlet Invert= 893.00' ‡ Reach 46uR: South Swale - at East Property Line of THs Inflow Outflow Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)3 2 1 0 Inflow Area=1.319 ac Avg. Flow Depth=0.23' Max Vel=3.36 fps n=0.025 L=34.0' S=0.0294 '/' Capacity=11.72 cfs 2.82 cfs 2.82 cfs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 170HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Reach 48R: Developed Area To Wetland 4 [40] Hint: Not Described (Outflow=Inflow) Inflow Area = 2.860 ac, 40.99% Impervious, Inflow Depth = 1.68" for 2y 24hr event Inflow = 1.47 cfs @ 12.56 hrs, Volume= 0.399 af Outflow = 1.47 cfs @ 12.56 hrs, Volume= 0.399 af, Atten= 0%, Lag= 0.0 min Routed to Pond 44P : Wetland 4 Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Reach 48R: Developed Area To Wetland 4 Inflow Outflow Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)1 0 Inflow Area=2.860 ac 1.47 cfs 1.47 cfs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 171HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Reach 72R: N68 [52] Hint: Inlet/Outlet conditions not evaluated Inflow Area = 4.190 ac, 56.32% Impervious, Inflow Depth = 2.37" for 2y 24hr event Inflow = 14.88 cfs @ 12.10 hrs, Volume= 0.828 af Outflow = 14.88 cfs @ 12.10 hrs, Volume= 0.828 af, Atten= 0%, Lag= 0.1 min Routed to Pond 71P : Interlachen Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Max. Velocity= 7.29 fps, Min. Travel Time= 0.1 min Avg. Velocity = 2.08 fps, Avg. Travel Time= 0.5 min Peak Storage= 128 cf @ 12.10 hrs Average Depth at Peak Storage= 1.24' , Surface Width= 1.94' Bank-Full Depth= 2.00' Flow Area= 3.1 sf, Capacity= 21.17 cfs 24.0" Round Pipe n= 0.012 Length= 63.0' Slope= 0.0075 '/' Inlet Invert= 872.00', Outlet Invert= 871.53' MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 172HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Reach 72R: N68 Inflow Outflow Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 Inflow Area=4.190 ac Avg. Flow Depth=1.24' Max Vel=7.29 fps 24.0" Round Pipe n=0.012 L=63.0' S=0.0075 '/' Capacity=21.17 cfs 14.88 cfs 14.88 cfs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 173HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Pond 41.3P: South-West Temp Basin Inflow Area = 14.560 ac, 9.59% Impervious, Inflow Depth = 1.28" for 2y 24hr event Inflow = 14.01 cfs @ 12.30 hrs, Volume= 1.548 af Outflow = 4.08 cfs @ 13.04 hrs, Volume= 1.547 af, Atten= 71%, Lag= 44.2 min Primary = 2.14 cfs @ 13.04 hrs, Volume= 1.332 af Routed to Reach 44R : Southwest Secondary = 1.94 cfs @ 13.04 hrs, Volume= 0.215 af Routed to Reach 44R : Southwest Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 877.58' @ 13.04 hrs Surf.Area= 18,945 sf Storage= 28,890 cf Plug-Flow detention time= 182.3 min calculated for 1.547 af (100% of inflow) Center-of-Mass det. time= 181.3 min ( 1,061.4 - 880.1 ) Volume Invert Avail.Storage Storage Description #1 875.63' 126,081 cf Surface Basin (Prismatic) Listed below (Recalc) Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 875.63 8,290 0 0 876.00 12,755 3,893 3,893 878.00 20,605 33,360 37,253 879.00 26,525 23,565 60,818 880.00 32,000 29,263 90,081 881.00 40,000 36,000 126,081 Device Routing Invert Outlet Devices #1 Primary 875.63'15.0" Round Culvert L= 46.0' RCP, end-section conforming to fill, Ke= 0.500 Inlet / Outlet Invert= 875.63' / 875.00' S= 0.0137 '/' Cc= 0.900 n= 0.011 Concrete pipe, straight & clean, Flow Area= 1.23 sf #2 Secondary 877.00'24.0" Round Culvert L= 46.0' RCP, end-section conforming to fill, Ke= 0.500 Inlet / Outlet Invert= 877.00' / 876.37' S= 0.0137 '/' Cc= 0.900 n= 0.011 Concrete pipe, straight & clean, Flow Area= 3.14 sf #3 Device 1 875.63'8.0" Round Culvert L= 8.0' CPP, square edge headwall, Ke= 0.500 Inlet / Outlet Invert= 875.63' / 875.52' S= 0.0138 '/' Cc= 0.900 n= 0.011 PVC, smooth interior, Flow Area= 0.35 sf Primary OutFlow Max=2.14 cfs @ 13.04 hrs HW=877.58' TW=0.00' (Dynamic Tailwater) 1=Culvert (Passes 2.14 cfs of 6.79 cfs potential flow) 3=Culvert (Inlet Controls 2.14 cfs @ 6.12 fps) Secondary OutFlow Max=1.94 cfs @ 13.04 hrs HW=877.58' TW=0.00' (Dynamic Tailwater) 2=Culvert (Inlet Controls 1.94 cfs @ 2.59 fps) MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 174HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Pond 41.3P: South-West Temp Basin Inflow Outflow Primary Secondary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 Inflow Area=14.560 ac Peak Elev=877.58' Storage=28,890 cf 14.01 cfs 4.08 cfs 2.14 cfs 1.94 cfs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 175HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Pond 44P: Wetland 4 Inflow Area = 13.102 ac, 8.95% Impervious, Inflow Depth = 0.49" for 2y 24hr event Inflow = 2.05 cfs @ 12.58 hrs, Volume= 0.537 af Outflow = 2.05 cfs @ 12.60 hrs, Volume= 0.537 af, Atten= 0%, Lag= 1.0 min Primary = 2.05 cfs @ 12.60 hrs, Volume= 0.537 af Routed to Reach 44R : Southwest Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 884.26' @ 12.60 hrs Surf.Area= 1,439 sf Storage= 296 cf Plug-Flow detention time= 8.1 min calculated for 0.537 af (100% of inflow) Center-of-Mass det. time= 7.2 min ( 1,089.2 - 1,082.0 ) Volume Invert Avail.Storage Storage Description #1 884.00' 37,633 cf Custom Stage Data (Prismatic) Listed below (Recalc) Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 884.00 870 0 0 884.50 1,980 713 713 885.00 3,500 1,370 2,083 886.00 7,800 5,650 7,733 887.00 14,000 10,900 18,633 888.00 24,000 19,000 37,633 Device Routing Invert Outlet Devices #1 Primary 884.03'Asymmetrical Weir, C= 3.27 Offset (feet) 0.00 51.00 133.60 176.00 217.30 239.00 Elev. (feet) 889.78 886.05 884.03 885.84 889.00 889.78 Primary OutFlow Max=2.05 cfs @ 12.60 hrs HW=884.26' TW=0.00' (Dynamic Tailwater) 1=Asymmetrical Weir (Weir Controls 2.05 cfs @ 0.62 fps) MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 176HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Pond 44P: Wetland 4 Inflow Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)2 1 0 Inflow Area=13.102 ac Peak Elev=884.26' Storage=296 cf 2.05 cfs 2.05 cfs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 177HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Pond 46P: Triangle Basin Inflow Area = 2.769 ac, 15.75% Impervious, Inflow Depth = 1.34" for 2y 24hr event Inflow = 5.07 cfs @ 12.16 hrs, Volume= 0.310 af Outflow = 2.58 cfs @ 12.35 hrs, Volume= 0.310 af, Atten= 49%, Lag= 11.4 min Primary = 2.58 cfs @ 12.35 hrs, Volume= 0.310 af Routed to Pond 41.3P : South-West Temp Basin Secondary = 0.00 cfs @ 0.00 hrs, Volume= 0.000 af Routed to Pond 41.3P : South-West Temp Basin Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 888.80' @ 12.35 hrs Surf.Area= 3,673 sf Storage= 4,296 cf Plug-Flow detention time= 216.1 min calculated for 0.310 af (100% of inflow) Center-of-Mass det. time= 216.1 min ( 1,043.4 - 827.3 ) Volume Invert Avail.Storage Storage Description #1 887.17' 14,801 cf Open pond (Prismatic) Listed below (Recalc) Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 887.17 1,586 0 0 890.90 6,350 14,801 14,801 Device Routing Invert Outlet Devices #1 Primary 884.37'18.0" Round Culvert L= 125.0' RCP, sq.cut end projecting, Ke= 0.500 Inlet / Outlet Invert= 884.37' / 875.62' S= 0.0700 '/' Cc= 0.900 n= 0.011 Concrete pipe, straight & clean, Flow Area= 1.77 sf #2 Device 1 888.00'15.0" Vert. Orifice/Grate C= 0.600 Limited to weir flow at low heads #3 Secondary 890.75'20.0' long x 5.0' breadth Broad-Crested Rectangular Weir Head (feet) 0.20 0.40 0.60 0.80 1.00 1.20 1.40 1.60 1.80 2.00 2.50 3.00 3.50 4.00 4.50 5.00 5.50 Coef. (English) 2.34 2.50 2.70 2.68 2.68 2.66 2.65 2.65 2.65 2.65 2.67 2.66 2.68 2.70 2.74 2.79 2.88 #4 Device 1 887.17'0.450 in/hr Filtration over Surface area Phase-In= 0.01' Primary OutFlow Max=2.58 cfs @ 12.35 hrs HW=888.80' TW=876.89' (Dynamic Tailwater) 1=Culvert (Passes 2.58 cfs of 16.33 cfs potential flow) 2=Orifice/Grate (Orifice Controls 2.55 cfs @ 3.05 fps) 4=Filtration (Exfiltration Controls 0.04 cfs) Secondary OutFlow Max=0.00 cfs @ 0.00 hrs HW=887.17' TW=875.63' (Dynamic Tailwater) 3=Broad-Crested Rectangular Weir ( Controls 0.00 cfs) MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 178HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Pond 46P: Triangle Basin Inflow Outflow Primary Secondary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)5 4 3 2 1 0 Inflow Area=2.769 ac Peak Elev=888.80' Storage=4,296 cf 5.07 cfs 2.58 cfs 2.58 cfs 0.00 cfs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 179HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Pond 47P: Bluff Creek - West Basin - 60" PIPE Inflow Area = 2.860 ac, 40.99% Impervious, Inflow Depth = 1.68" for 2y 24hr event Inflow = 6.96 cfs @ 12.13 hrs, Volume= 0.399 af Outflow = 1.47 cfs @ 12.56 hrs, Volume= 0.399 af, Atten= 79%, Lag= 26.1 min Primary = 1.47 cfs @ 12.56 hrs, Volume= 0.399 af Routed to Reach 48R : Developed Area To Wetland 4 Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 910.11' @ 12.56 hrs Surf.Area= 6,385 sf Storage= 7,996 cf Plug-Flow detention time= 312.3 min calculated for 0.399 af (100% of inflow) Center-of-Mass det. time= 312.3 min ( 1,123.2 - 810.9 ) Volume Invert Avail.Storage Storage Description #1A 908.00' 8,037 cf 56.09'W x 113.17'L x 6.08'H Field A 38,615 cf Overall - 18,524 cf Embedded = 20,091 cf x 40.0% Voids #2A 908.00' 15,598 cf ADS N-12 60" x 35 Inside #1 Inside= 59.5"W x 59.5"H => 19.30 sf x 20.00'L = 386.0 cf Outside= 67.0"W x 67.0"H => 22.92 sf x 20.00'L = 458.4 cf 35 Chambers in 7 Rows 54.09' Header x 19.30 sf x 2 = 2,087.7 cf Inside #3 908.00' 34,645 cf 4.00'D x 919.00'H Vertical Cone/Cylinder x 3 58,280 cf Total Available Storage Storage Group A created with Chamber Wizard Device Routing Invert Outlet Devices #1 Primary 905.20'15.0" Round Culvert L= 312.0' RCP, square edge headwall, Ke= 0.500 Inlet / Outlet Invert= 905.20' / 901.89' S= 0.0106 '/' Cc= 0.900 n= 0.013 Concrete pipe, straight & clean, Flow Area= 1.23 sf #2 Device 1 905.50'14.0" Round Culvert L= 20.0' CPP, square edge headwall, Ke= 0.500 Inlet / Outlet Invert= 905.50' / 905.20' S= 0.0150 '/' Cc= 0.900 n= 0.011 PVC, smooth interior, Flow Area= 1.07 sf #3 Device 2 909.50'12.0" Vert. Orifice - Overflow C= 0.600 Limited to weir flow at low heads #4 Device 2 906.00'8.0" Vert. Orifice - Underdrain C= 0.600 Limited to weir flow at low heads #5 Device 4 908.00'0.800 in/hr Filtration over Horizontal area Phase-In= 0.01' Primary OutFlow Max=1.47 cfs @ 12.56 hrs HW=910.11' TW=0.00' (Dynamic Tailwater) 1=Culvert (Passes 1.47 cfs of 8.78 cfs potential flow) 2=Culvert (Passes 1.47 cfs of 10.33 cfs potential flow) 3=Orifice - Overflow (Orifice Controls 1.35 cfs @ 2.67 fps) 4=Orifice - Underdrain (Passes 0.12 cfs of 3.27 cfs potential flow) 5=Filtration (Exfiltration Controls 0.12 cfs) MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 180HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Pond 47P: Bluff Creek - West Basin - 60" PIPE - Chamber Wizard Field A Chamber Model = ADS N-12 60" (ADS N-12® Pipe) Inside= 59.5"W x 59.5"H => 19.30 sf x 20.00'L = 386.0 cf Outside= 67.0"W x 67.0"H => 22.92 sf x 20.00'L = 458.4 cf 67.0" Wide + 30.0" Spacing = 97.0" C-C Row Spacing 5 Chambers/Row x 20.00' Long +5.58' Header x 2 = 111.17' Row Length +12.0" End Stone x 2 = 113.17' Base Length 7 Rows x 67.0" Wide + 30.0" Spacing x 6 + 12.0" Side Stone x 2 = 56.09' Base Width 67.0" Chamber Height + 6.0" Stone Cover = 6.08' Field Height 35 Chambers x 386.0 cf + 54.09' Header x 19.30 sf x 2 = 15,597.7 cf Chamber Storage 35 Chambers x 458.4 cf + 54.09' Header x 22.92 sf x 2 = 18,524.0 cf Displacement 38,615.4 cf Field - 18,524.0 cf Chambers = 20,091.4 cf Stone x 40.0% Voids = 8,036.6 cf Stone Storage Chamber Storage + Stone Storage = 23,634.3 cf = 0.543 af Overall Storage Efficiency = 61.2% Overall System Size = 113.17' x 56.09' x 6.08' 35 Chambers 1,430.2 cy Field 744.1 cy Stone MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 181HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Pond 47P: Bluff Creek - West Basin - 60" PIPE Inflow Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)7 6 5 4 3 2 1 0 Inflow Area=2.860 ac Peak Elev=910.11' Storage=7,996 cf 6.96 cfs 1.47 cfs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 182HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Pond 48P: Bluff Creek - East Basin [44] Hint: Outlet device #2 is below defined storage Inflow Area = 7.828 ac, 28.98% Impervious, Inflow Depth = 1.61" for 2y 24hr event Inflow = 18.55 cfs @ 12.10 hrs, Volume= 1.048 af Outflow = 1.06 cfs @ 13.57 hrs, Volume= 1.048 af, Atten= 94%, Lag= 88.2 min Primary = 1.06 cfs @ 13.57 hrs, Volume= 1.048 af Routed to Pond 54P : South-East Temp Basin Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 897.85' @ 13.57 hrs Surf.Area= 42,343 sf Storage= 26,823 cf Plug-Flow detention time= (not calculated: outflow precedes inflow) Center-of-Mass det. time= 341.5 min ( 1,150.1 - 808.6 ) Volume Invert Avail.Storage Storage Description #1 897.20' 340,085 cf Open Pond (Prismatic) Listed below (Recalc) Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 897.20 40,540 0 0 904.00 59,485 340,085 340,085 Device Routing Invert Outlet Devices #1 Primary 895.35'12.0" Round Culvert L= 637.0' RCP, sq.cut end projecting, Ke= 0.500 Inlet / Outlet Invert= 895.35' / 888.98' S= 0.0100 '/' Cc= 0.900 n= 0.017 Concrete sewer w/manholes & inlets, Flow Area= 0.79 sf #2 Device 1 897.00'8.0" Round Temp Outlet Pipe L= 21.0' CPP, mitered to conform to fill, Ke= 0.700 Inlet / Outlet Invert= 897.00' / 895.35' S= 0.0786 '/' Cc= 0.900 n= 0.011 PVC, smooth interior, Flow Area= 0.35 sf Primary OutFlow Max=1.06 cfs @ 13.57 hrs HW=897.85' TW=880.54' (Dynamic Tailwater) 1=Culvert (Passes 1.06 cfs of 2.96 cfs potential flow) 2=Temp Outlet Pipe (Inlet Controls 1.06 cfs @ 3.05 fps) MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 183HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Pond 48P: Bluff Creek - East Basin Inflow Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 Inflow Area=7.828 ac Peak Elev=897.85' Storage=26,823 cf 18.55 cfs 1.06 cfs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 184HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Pond 52P: South-Center Temp Basin Inflow Area = 8.180 ac, 9.42% Impervious, Inflow Depth = 1.28" for 2y 24hr event Inflow = 8.65 cfs @ 12.33 hrs, Volume= 0.873 af Outflow = 8.55 cfs @ 12.36 hrs, Volume= 0.873 af, Atten= 1%, Lag= 1.9 min Primary = 8.55 cfs @ 12.36 hrs, Volume= 0.873 af Routed to Pond 41.3P : South-West Temp Basin Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 903.88' @ 12.36 hrs Surf.Area= 3,255 sf Storage= 1,210 cf Plug-Flow detention time= 3.0 min calculated for 0.873 af (100% of inflow) Center-of-Mass det. time= 3.0 min ( 842.6 - 839.7 ) Volume Invert Avail.Storage Storage Description #1 903.14' 49,230 cf Custom Stage Data (Prismatic) Listed below (Recalc) Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 903.14 10 0 0 904.00 3,775 1,628 1,628 905.00 19,015 11,395 13,023 906.00 53,400 36,208 49,230 Device Routing Invert Outlet Devices #1 Primary 903.14'Custom Weir/Orifice, Cv= 2.62 (C= 3.28) Head (feet) 0.00 0.25 0.50 0.75 1.00 2.00 Width (feet) 0.10 4.20 6.25 8.30 12.50 12.50 Primary OutFlow Max=8.55 cfs @ 12.36 hrs HW=903.88' TW=876.92' (Dynamic Tailwater) 1=Custom Weir/Orifice (Weir Controls 8.55 cfs @ 2.38 fps) MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 185HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Pond 52P: South-Center Temp Basin Inflow Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)9 8 7 6 5 4 3 2 1 0 Inflow Area=8.180 ac Peak Elev=903.88' Storage=1,210 cf 8.65 cfs 8.55 cfs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 186HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Pond 54P: South-East Temp Basin Inflow Area = 13.937 ac, 16.28% Impervious, Inflow Depth = 1.41" for 2y 24hr event Inflow = 7.00 cfs @ 12.40 hrs, Volume= 1.636 af Outflow = 1.06 cfs @ 18.21 hrs, Volume= 1.634 af, Atten= 85%, Lag= 348.3 min Primary = 1.06 cfs @ 18.21 hrs, Volume= 1.634 af Routed to Reach 42.2R : Southeast Secondary = 0.00 cfs @ 0.00 hrs, Volume= 0.000 af Routed to Reach 42.2R : Southeast Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 880.87' @ 18.21 hrs Surf.Area= 14,408 sf Storage= 24,610 cf Plug-Flow detention time= 366.4 min calculated for 1.634 af (100% of inflow) Center-of-Mass det. time= 366.2 min ( 1,409.1 - 1,042.9 ) Volume Invert Avail.Storage Storage Description #1 879.00' 121,861 cf Custom Stage Data (Prismatic) Listed below (Recalc) Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 879.00 11,945 0 0 881.00 14,583 26,528 26,528 883.00 20,500 35,083 61,611 884.00 100,000 60,250 121,861 Device Routing Invert Outlet Devices #1 Primary 874.38'18.0" Round Culvert L= 68.0' RCP, sq.cut end projecting, Ke= 0.500 Inlet / Outlet Invert= 874.38' / 874.05' S= 0.0049 '/' Cc= 0.900 n= 0.013 Concrete pipe, straight & clean, Flow Area= 1.77 sf #2 Device 1 879.00'6.0" Round Culvert L= 29.0' CPP, mitered to conform to fill, Ke= 0.700 Inlet / Outlet Invert= 879.00' / 878.71' S= 0.0100 '/' Cc= 0.900 n= 0.011 PVC, smooth interior, Flow Area= 0.20 sf #3 Secondary 883.85'25.0' long x 50.0' breadth Broad-Crested Rectangular Weir Head (feet) 0.20 0.40 0.60 0.80 1.00 1.20 1.40 1.60 Coef. (English) 2.68 2.70 2.70 2.64 2.63 2.64 2.64 2.63 Primary OutFlow Max=1.06 cfs @ 18.21 hrs HW=880.87' TW=0.00' (Dynamic Tailwater) 1=Culvert (Passes 1.06 cfs of 19.74 cfs potential flow) 2=Culvert (Inlet Controls 1.06 cfs @ 5.40 fps) Secondary OutFlow Max=0.00 cfs @ 0.00 hrs HW=879.00' TW=0.00' (Dynamic Tailwater) 3=Broad-Crested Rectangular Weir ( Controls 0.00 cfs) MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 187HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Pond 54P: South-East Temp Basin Inflow Outflow Primary Secondary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)7 6 5 4 3 2 1 0 Inflow Area=13.937 ac Peak Elev=880.87' Storage=24,610 cf 7.00 cfs 1.06 cfs 1.06 cfs 0.00 cfs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 188HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Pond 71P: Interlachen [44] Hint: Outlet device #2 is below defined storage [61] Hint: Exceeded Reach 72R outlet invert by 0.19' @ 12.65 hrs Inflow Area = 30.860 ac, 27.80% Impervious, Inflow Depth = 1.64" for 2y 24hr event Inflow = 64.95 cfs @ 12.11 hrs, Volume= 4.207 af Outflow = 11.21 cfs @ 12.65 hrs, Volume= 4.196 af, Atten= 83%, Lag= 32.6 min Primary = 11.21 cfs @ 12.65 hrs, Volume= 4.196 af Routed to Pond 72P : South MNDOT M9 Wetland Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 871.72' @ 12.65 hrs Surf.Area= 55,983 sf Storage= 91,701 cf Plug-Flow detention time= 418.4 min calculated for 4.196 af (100% of inflow) Center-of-Mass det. time= 416.7 min ( 1,212.0 - 795.2 ) Volume Invert Avail.Storage Storage Description #1 870.00' 381,460 cf Custom Stage Data (Prismatic) Listed below (Recalc) Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 870.00 50,570 0 0 872.00 56,860 107,430 107,430 875.00 74,330 196,785 304,215 876.00 80,160 77,245 381,460 Device Routing Invert Outlet Devices #1 Primary 870.00'24.0" Round Culvert L= 33.0' RCP, square edge headwall, Ke= 0.500 Inlet / Outlet Invert= 870.00' / 869.67' S= 0.0100 '/' Cc= 0.900 n= 0.012, Flow Area= 3.14 sf #2 Device 1 866.61'24.0" Round Culvert L= 21.0' RCP, end-section conforming to fill, Ke= 0.500 Inlet / Outlet Invert= 866.50' / 866.61' S= -0.0052 '/' Cc= 0.900 n= 0.012, Flow Area= 3.14 sf Primary OutFlow Max=11.21 cfs @ 12.65 hrs HW=871.72' TW=869.77' (Dynamic Tailwater) 1=Culvert (Barrel Controls 11.21 cfs @ 5.23 fps) 2=Culvert (Passes 11.21 cfs of 19.85 cfs potential flow) MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 189HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Pond 71P: Interlachen Inflow Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)70 65 60 55 50 45 40 35 30 25 20 15 10 5 0 Inflow Area=30.860 ac Peak Elev=871.72' Storage=91,701 cf 64.95 cfs 11.21 cfs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 190HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Pond 72P: South MNDOT M9 Wetland [44] Hint: Outlet device #3 is below defined storage Inflow Area = 112.205 ac, 11.96% Impervious, Inflow Depth = 1.12" for 2y 24hr event Inflow = 36.93 cfs @ 12.44 hrs, Volume= 10.431 af Outflow = 2.23 cfs @ 24.50 hrs, Volume= 10.148 af, Atten= 94%, Lag= 723.5 min Primary = 2.23 cfs @ 24.50 hrs, Volume= 10.148 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 870.35' @ 24.50 hrs Surf.Area= 452,795 sf Storage= 316,560 cf Plug-Flow detention time= 2,807.9 min calculated for 10.148 af (97% of inflow) Center-of-Mass det. time= 2,705.1 min ( 3,836.1 - 1,131.0 ) Volume Invert Avail.Storage Storage Description #1 869.50' 2,891,990 cf Custom Stage Data (Prismatic) Listed below (Recalc) Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 869.50 214,970 0 0 870.00 433,070 162,010 162,010 871.00 489,600 461,335 623,345 872.00 532,650 511,125 1,134,470 875.00 639,030 1,757,520 2,891,990 Device Routing Invert Outlet Devices #1 Primary 869.00'18.0" Round Culvert L= 276.0' RCP, square edge headwall, Ke= 0.500 Inlet / Outlet Invert= 869.00' / 866.93' S= 0.0075 '/' Cc= 0.900 n= 0.013 Concrete pipe, straight & clean, Flow Area= 1.77 sf #2 Device 1 869.50'12.0" Vert. Orifice/Grate C= 0.600 Limited to weir flow at low heads #3 Device 2 869.36'18.0" Round Culvert L= 172.0' RCP, end-section conforming to fill, Ke= 0.500 Inlet / Outlet Invert= 868.50' / 869.36' S= -0.0050 '/' Cc= 0.900 n= 0.013 Concrete pipe, straight & clean, Flow Area= 1.77 sf Primary OutFlow Max=2.23 cfs @ 24.50 hrs HW=870.35' (Free Discharge) 1=Culvert (Passes 2.23 cfs of 6.62 cfs potential flow) 2=Orifice/Grate (Orifice Controls 2.23 cfs @ 3.14 fps) 3=Culvert (Passes 2.23 cfs of 4.18 cfs potential flow) MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 191HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Pond 72P: South MNDOT M9 Wetland Inflow Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)40 38 36 34 32 30 28 26 24 22 20 18 16 14 12 10 8 6 4 2 0 Inflow Area=112.205 ac Peak Elev=870.35' Storage=316,560 cf 36.93 cfs 2.23 cfs MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 192HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Time span=0.00-360.00 hrs, dt=0.01 hrs, 36001 points Runoff by SCS TR-20 method, UH=SCS, Weighted-CN Reach routing by Dyn-Stor-Ind method - Pond routing by Dyn-Stor-Ind method Runoff Area=21,220 sf 0.00% Impervious Runoff Depth=6.96"Subcatchment 13.2S: Front Yards - South Tc=5.0 min AMC Adjusted CN=98 Runoff=0.09 cfs 0.283 af Runoff Area=5,069 sf 76.64% Impervious Runoff Depth=6.96"Subcatchment 16oS: East Offsite Tc=5.0 min AMC Adjusted CN=98 Runoff=0.02 cfs 0.068 af Runoff Area=63,545 sf 52.82% Impervious Runoff Depth=6.96"Subcatchment 40.4S: So. Villas Private Flow Length=845' Tc=13.0 min AMC Adjusted CN=98 Runoff=0.28 cfs 0.846 af Runoff Area=157,310 sf 5.27% Impervious Runoff Depth=6.96"Subcatchment 41.3S: South-West Flow Length=285' Tc=8.9 min AMC Adjusted CN=98 Runoff=0.69 cfs 2.095 af Runoff Area=21,960 sf 0.00% Impervious Runoff Depth=6.96"Subcatchment 42.1S: South Fringe Tc=5.0 min AMC Adjusted CN=98 Runoff=0.10 cfs 0.292 af Runoff Area=8,870 sf 0.00% Impervious Runoff Depth=6.96"Subcatchment 42.2S: Southeast Fringe Tc=5.0 min AMC Adjusted CN=98 Runoff=0.04 cfs 0.118 af Runoff Area=140,400 sf 0.00% Impervious Runoff Depth=6.96"Subcatchment 43.1S: East Woods Flow Length=530' Tc=15.2 min AMC Adjusted CN=98 Runoff=0.61 cfs 1.870 af Runoff Area=76,080 sf 0.00% Impervious Runoff Depth=6.96"Subcatchment 43.2S: Northeast Woods Flow Length=623' Tc=19.5 min AMC Adjusted CN=98 Runoff=0.33 cfs 1.013 af Runoff Area=446,125 sf 0.00% Impervious Runoff Depth=6.96"Subcatchment 44S: North Woods Tc=20.0 min AMC Adjusted CN=98 Runoff=1.95 cfs 5.941 af Runoff Area=63,170 sf 0.00% Impervious Runoff Depth=6.96"Subcatchment 46S: Direct to Tri. Basin Flow Length=755' Tc=11.5 min AMC Adjusted CN=98 Runoff=0.28 cfs 0.841 af Runoff Area=57,455 sf 33.07% Impervious Runoff Depth=6.96"Subcatchment 46uS: Rear Yards of South Flow Length=755' Tc=11.5 min AMC Adjusted CN=98 Runoff=0.25 cfs 0.765 af Runoff Area=103,380 sf 49.41% Impervious Runoff Depth=6.96"Subcatchment 47S: Bluff Creek Pkwy - Tc=10.0 min AMC Adjusted CN=98 Runoff=0.45 cfs 1.377 af Runoff Area=168,700 sf 56.27% Impervious Runoff Depth=6.96"Subcatchment 48S: Bluff Creek Pkwy - Tc=10.0 min AMC Adjusted CN=98 Runoff=0.74 cfs 2.246 af Runoff Area=292,770 sf 0.00% Impervious Runoff Depth=6.96"Subcatchment 52S: South - Center Flow Length=660' Slope=0.0100 '/' Tc=27.0 min AMC Adjusted CN=98 Runoff=1.27 cfs 3.899 af Runoff Area=266,110 sf 0.00% Impervious Runoff Depth=6.96"Subcatchment 54S: South - East Flow Length=418' Tc=27.7 min AMC Adjusted CN=98 Runoff=1.16 cfs 3.544 af Runoff Area=167,215 sf 0.00% Impervious Runoff Depth=6.96"Subcatchment 55S: Direct to Bluff Creek - Tc=5.0 min AMC Adjusted CN=98 Runoff=0.73 cfs 2.227 af MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 193HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Runoff Area=2.080 ac 0.00% Impervious Runoff Depth=6.96"Subcatchment 71-1S: Interlacn Subcatch 1 Tc=7.0 min AMC Adjusted CN=98 Runoff=0.40 cfs 1.207 af Runoff Area=1.160 ac 100.00% Impervious Runoff Depth=7.20"Subcatchment 71-2S: Interlacn Subcatch 2 Tc=7.0 min CN=100 Runoff=0.22 cfs 0.696 af Runoff Area=0.810 ac 0.00% Impervious Runoff Depth=6.96"Subcatchment 72S: 6_Temp Tc=9.0 min AMC Adjusted CN=98 Runoff=0.15 cfs 0.470 af Runoff Area=2.360 ac 100.00% Impervious Runoff Depth=6.96"Subcatchment 73S: N68 Tc=7.0 min CN=98 Runoff=0.45 cfs 1.369 af Runoff Area=1.020 ac 0.00% Impervious Runoff Depth=6.96"Subcatchment 74S: 5_Temp Tc=9.0 min AMC Adjusted CN=98 Runoff=0.19 cfs 0.592 af Runoff Area=3.010 ac 100.00% Impervious Runoff Depth=6.96"Subcatchment 75S: 3225 Tc=7.0 min CN=98 Runoff=0.58 cfs 1.746 af Runoff Area=8.310 ac 0.00% Impervious Runoff Depth=6.96"Subcatchment 76S: 3236 Tc=14.0 min AMC Adjusted CN=98 Runoff=1.58 cfs 4.820 af Runoff Area=0.950 ac 0.00% Impervious Runoff Depth=6.96"Subcatchment 77S: 3238 Tc=7.0 min AMC Adjusted CN=98 Runoff=0.18 cfs 0.551 af Runoff Area=0.630 ac 0.00% Impervious Runoff Depth=6.96"Subcatchment 78S: 3243 Tc=7.0 min AMC Adjusted CN=98 Runoff=0.12 cfs 0.365 af Runoff Area=2.050 ac 100.00% Impervious Runoff Depth=6.96"Subcatchment 79S: 3245 Tc=7.0 min CN=98 Runoff=0.39 cfs 1.189 af Runoff Area=0.350 ac 0.00% Impervious Runoff Depth=6.96"Subcatchment 80S: 3250 Tc=7.0 min AMC Adjusted CN=98 Runoff=0.07 cfs 0.203 af Runoff Area=5.950 ac 0.00% Impervious Runoff Depth=6.96"Subcatchment 81S: 3343 Tc=19.0 min AMC Adjusted CN=98 Runoff=1.13 cfs 3.451 af Runoff Area=1.480 ac 0.00% Impervious Runoff Depth=6.96"Subcatchment 82S: 3345 Tc=7.0 min AMC Adjusted CN=98 Runoff=0.28 cfs 0.858 af Runoff Area=0.700 ac 0.00% Impervious Runoff Depth=6.96"Subcatchment 83S: 3348 Tc=7.0 min AMC Adjusted CN=98 Runoff=0.13 cfs 0.406 af Runoff Area=2.100 ac 0.00% Impervious Runoff Depth=6.96"Subcatchment 84S: SE12 Tc=11.0 min AMC Adjusted CN=98 Runoff=0.40 cfs 1.218 af Runoff Area=4.530 ac 0.00% Impervious Runoff Depth=6.96"Subcatchment 85S: 1S Tc=15.0 min AMC Adjusted CN=98 Runoff=0.86 cfs 2.628 af Runoff Area=5.800 ac 0.00% Impervious Runoff Depth=6.96"Subcatchment 86S: 2S Tc=25.0 min AMC Adjusted CN=98 Runoff=1.10 cfs 3.364 af MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 194HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Runoff Area=21.638 ac 0.00% Impervious Runoff Depth=6.96"Subcatchment 87S: M9 Tc=29.0 min AMC Adjusted CN=98 Runoff=4.10 cfs 12.551 af Inflow=6.52 cfs 27.418 afReach 40R: South Drainage Outflow=6.52 cfs 27.418 af Inflow=1.28 cfs 8.492 afReach 42.2R: Southeast Outflow=1.28 cfs 8.492 af Inflow=4.76 cfs 17.056 afReach 44R: Southwest Outflow=4.76 cfs 17.056 af Avg. Flow Depth=0.06' Max Vel=1.43 fps Inflow=0.25 cfs 0.765 afReach 46uR: South Swale - at East n=0.025 L=34.0' S=0.0294 '/' Capacity=11.72 cfs Outflow=0.25 cfs 0.765 af Inflow=0.49 cfs 1.659 afReach 48R: Developed Area To Wetland 4 Outflow=0.49 cfs 1.659 af Avg. Flow Depth=0.27' Max Vel=3.23 fps Inflow=0.80 cfs 2.430 afReach 72R: N68 24.0" Round Pipe n=0.012 L=63.0' S=0.0075 '/' Capacity=21.17 cfs Outflow=0.80 cfs 2.430 af Peak Elev=877.24' Storage=22,750 cf Inflow=2.75 cfs 8.446 afPond 41.3P: South-West Temp Basin Primary=1.90 cfs 8.364 af Secondary=0.36 cfs 0.079 af Outflow=2.26 cfs 8.443 af Peak Elev=884.27' Storage=317 cf Inflow=2.40 cfs 7.600 afPond 44P: Wetland 4 Outflow=2.40 cfs 7.599 af Peak Elev=888.32' Storage=2,681 cf Inflow=0.53 cfs 1.606 afPond 46P: Triangle Basin Primary=0.52 cfs 1.606 af Secondary=0.00 cfs 0.000 af Outflow=0.52 cfs 1.606 af Peak Elev=909.80' Storage=6,507 cf Inflow=0.55 cfs 1.659 afPond 47P: Bluff Creek - West Basin - 60" Outflow=0.49 cfs 1.659 af Peak Elev=897.71' Storage=21,043 cf Inflow=1.49 cfs 4.541 afPond 48P: Bluff Creek - East Basin Outflow=0.91 cfs 4.541 af Peak Elev=903.49' Storage=265 cf Inflow=1.55 cfs 4.745 afPond 52P: South-Center Temp Basin Outflow=1.55 cfs 4.745 af Peak Elev=881.44' Storage=33,180 cf Inflow=2.00 cfs 8.084 afPond 54P: South-East Temp Basin Primary=1.23 cfs 8.081 af Secondary=0.00 cfs 0.000 af Outflow=1.23 cfs 8.081 af Peak Elev=871.58' Storage=83,791 cf Inflow=5.88 cfs 17.924 afPond 71P: Interlachen Outflow=4.59 cfs 17.888 af Peak Elev=871.57' Storage=909,157 cf Inflow=17.49 cfs 65.067 afPond 72P: South MNDOT M9 Wetland Outflow=4.74 cfs 63.877 af Total Runoff Area = 112.205 ac Runoff Volume = 65.109 af Average Runoff Depth = 6.96" 88.04% Pervious = 98.787 ac 11.96% Impervious = 13.418 ac MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 195HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 13.2S: Front Yards - South Rowhomes Runoff = 0.09 cfs @ 121.24 hrs, Volume= 0.283 af, Depth= 6.96" Routed to Pond 47P : Bluff Creek - West Basin - 60" PIPE Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4 Area (sf) CN Adj Description 21,220 80 >75% Grass cover, Good, HSG D 21,220 80 98 Weighted Average, AMC Adjusted 21,220 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 5.0 Direct Entry, Subcatchment 13.2S: Front Yards - South Rowhomes Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.1 0.095 0.09 0.085 0.08 0.075 0.07 0.065 0.06 0.055 0.05 0.045 0.04 0.035 0.03 0.025 0.02 0.015 0.01 0.005 0 MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20" AMC=4 Runoff Area=21,220 sf Runoff Volume=0.283 af Runoff Depth=6.96" Tc=5.0 min AMC Adjusted CN=98 0.09 cfs MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 196HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 16oS: East Offsite Runoff = 0.02 cfs @ 121.24 hrs, Volume= 0.068 af, Depth= 6.96" Routed to Pond 48P : Bluff Creek - East Basin Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4 Area (sf) CN Adj Description 1,184 80 >75% Grass cover, Good, HSG D 3,885 98 Paved parking, HSG D 5,069 94 98 Weighted Average, AMC Adjusted 1,184 23.36% Pervious Area 3,885 76.64% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 5.0 Direct Entry, Subcatchment 16oS: East Offsite Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.024 0.023 0.022 0.021 0.02 0.019 0.018 0.017 0.016 0.015 0.014 0.013 0.012 0.011 0.01 0.009 0.008 0.007 0.006 0.005 0.004 0.003 0.002 0.001 0 MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20" AMC=4 Runoff Area=5,069 sf Runoff Volume=0.068 af Runoff Depth=6.96" Tc=5.0 min AMC Adjusted CN=98 0.02 cfs MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 197HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 40.4S: So. Villas Private Drive Runoff = 0.28 cfs @ 121.32 hrs, Volume= 0.846 af, Depth= 6.96" Routed to Pond 52P : South-Center Temp Basin Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4 Area (sf) CN Adj Description 29,980 80 >75% Grass cover, Good, HSG D 33,565 98 Paved parking, HSG D 63,545 90 98 Weighted Average, AMC Adjusted 29,980 47.18% Pervious Area 33,565 52.82% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 8.3 70 0.0430 0.14 Sheet Flow, Lawn Grass: Dense n= 0.240 P2= 2.87" 4.7 775 0.0180 2.72 Shallow Concentrated Flow, Street Flow Paved Kv= 20.3 fps 13.0 845 Total Subcatchment 40.4S: So. Villas Private Drive Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.3 0.28 0.26 0.24 0.22 0.2 0.18 0.16 0.14 0.12 0.1 0.08 0.06 0.04 0.02 0 MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20" AMC=4 Runoff Area=63,545 sf Runoff Volume=0.846 af Runoff Depth=6.96" Flow Length=845' Tc=13.0 min AMC Adjusted CN=98 0.28 cfs MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 198HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 41.3S: South-West Runoff = 0.69 cfs @ 121.29 hrs, Volume= 2.095 af, Depth= 6.96" Routed to Pond 41.3P : South-West Temp Basin Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4 Area (sf) CN Adj Description 149,020 80 >75% Grass cover, Good, HSG D * 8,290 100 Water 157,310 81 98 Weighted Average, AMC Adjusted 149,020 94.73% Pervious Area 8,290 5.27% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 7.5 100 0.0450 0.22 Sheet Flow, Grass: Short n= 0.150 P2= 2.87" 1.0 90 0.0450 1.48 Shallow Concentrated Flow, Short Grass Pasture Kv= 7.0 fps 0.4 95 0.3333 4.04 Shallow Concentrated Flow, Short Grass Pasture Kv= 7.0 fps 8.9 285 Total Subcatchment 41.3S: South-West Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.75 0.7 0.65 0.6 0.55 0.5 0.45 0.4 0.35 0.3 0.25 0.2 0.15 0.1 0.05 0 MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20" AMC=4 Runoff Area=157,310 sf Runoff Volume=2.095 af Runoff Depth=6.96" Flow Length=285' Tc=8.9 min AMC Adjusted CN=98 0.69 cfs MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 199HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 42.1S: South Fringe Runoff = 0.10 cfs @ 121.24 hrs, Volume= 0.292 af, Depth= 6.96" Routed to Reach 42.2R : Southeast Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4 Area (sf) CN Adj Description 21,960 80 >75% Grass cover, Good, HSG D 21,960 80 98 Weighted Average, AMC Adjusted 21,960 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 5.0 Direct Entry, Subcatchment 42.1S: South Fringe Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.105 0.1 0.095 0.09 0.085 0.08 0.075 0.07 0.065 0.06 0.055 0.05 0.045 0.04 0.035 0.03 0.025 0.02 0.015 0.01 0.005 0 MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20" AMC=4 Runoff Area=21,960 sf Runoff Volume=0.292 af Runoff Depth=6.96" Tc=5.0 min AMC Adjusted CN=98 0.10 cfs MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 200HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 42.2S: Southeast Fringe Runoff = 0.04 cfs @ 121.24 hrs, Volume= 0.118 af, Depth= 6.96" Routed to Reach 42.2R : Southeast Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4 Area (sf) CN Adj Description 8,870 78 Meadow, non-grazed, HSG D 8,870 78 98 Weighted Average, AMC Adjusted 8,870 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 5.0 Direct Entry, Subcatchment 42.2S: Southeast Fringe Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.042 0.04 0.038 0.036 0.034 0.032 0.03 0.028 0.026 0.024 0.022 0.02 0.018 0.016 0.014 0.012 0.01 0.008 0.006 0.004 0.002 0 MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20" AMC=4 Runoff Area=8,870 sf Runoff Volume=0.118 af Runoff Depth=6.96" Tc=5.0 min AMC Adjusted CN=98 0.04 cfs MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 201HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 43.1S: East Woods Runoff = 0.61 cfs @ 121.35 hrs, Volume= 1.870 af, Depth= 6.96" Routed to Reach 40R : South Drainage Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4 Area (sf) CN Adj Description 140,400 55 Woods, Good, HSG B 140,400 55 98 Weighted Average, AMC Adjusted 140,400 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 11.1 75 0.0670 0.11 Sheet Flow, Woods: Light underbrush n= 0.400 P2= 2.87" 4.1 455 0.1380 1.86 Shallow Concentrated Flow, Woodland Kv= 5.0 fps 15.2 530 Total Subcatchment 43.1S: East Woods Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.65 0.6 0.55 0.5 0.45 0.4 0.35 0.3 0.25 0.2 0.15 0.1 0.05 0 MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20" AMC=4 Runoff Area=140,400 sf Runoff Volume=1.870 af Runoff Depth=6.96" Flow Length=530' Tc=15.2 min AMC Adjusted CN=98 0.61 cfs MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 202HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 43.2S: Northeast Woods Runoff = 0.33 cfs @ 121.40 hrs, Volume= 1.013 af, Depth= 6.96" Routed to Reach 44R : Southwest Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4 Area (sf) CN Adj Description 76,080 55 Woods, Good, HSG B 76,080 55 98 Weighted Average, AMC Adjusted 76,080 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 14.2 100 0.0650 0.12 Sheet Flow, Woods: Light underbrush n= 0.400 P2= 2.87" 5.3 523 0.1080 1.64 Shallow Concentrated Flow, Woodland Kv= 5.0 fps 19.5 623 Total Subcatchment 43.2S: Northeast Woods Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.36 0.34 0.32 0.3 0.28 0.26 0.24 0.22 0.2 0.18 0.16 0.14 0.12 0.1 0.08 0.06 0.04 0.02 0 MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20" AMC=4 Runoff Area=76,080 sf Runoff Volume=1.013 af Runoff Depth=6.96" Flow Length=623' Tc=19.5 min AMC Adjusted CN=98 0.33 cfs MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 203HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 44S: North Woods Runoff = 1.95 cfs @ 121.40 hrs, Volume= 5.941 af, Depth= 6.96" Routed to Pond 44P : Wetland 4 Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4 Area (sf) CN Adj Description 446,125 55 Woods, Good, HSG B 446,125 55 98 Weighted Average, AMC Adjusted 446,125 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 20.0 Direct Entry, Subcatchment 44S: North Woods Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)2 1 0 MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20" AMC=4 Runoff Area=446,125 sf Runoff Volume=5.941 af Runoff Depth=6.96" Tc=20.0 min AMC Adjusted CN=98 1.95 cfs MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 204HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 46S: Direct to Tri. Basin Runoff = 0.28 cfs @ 121.30 hrs, Volume= 0.841 af, Depth= 6.96" Routed to Pond 46P : Triangle Basin Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4 Area (sf) CN Adj Description 63,170 80 >75% Grass cover, Good, HSG D 63,170 80 98 Weighted Average, AMC Adjusted 63,170 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 3.4 40 0.0500 0.19 Sheet Flow, Grass: Short n= 0.150 P2= 2.87" 8.1 715 0.0440 1.47 Shallow Concentrated Flow, Short Grass Pasture Kv= 7.0 fps 11.5 755 Total Subcatchment 46S: Direct to Tri. Basin Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.3 0.28 0.26 0.24 0.22 0.2 0.18 0.16 0.14 0.12 0.1 0.08 0.06 0.04 0.02 0 MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20" AMC=4 Runoff Area=63,170 sf Runoff Volume=0.841 af Runoff Depth=6.96" Flow Length=755' Tc=11.5 min AMC Adjusted CN=98 0.28 cfs MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 205HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 46uS: Rear Yards of South Townhomes Runoff = 0.25 cfs @ 121.30 hrs, Volume= 0.765 af, Depth= 6.96" Routed to Reach 46uR : South Swale - at East Property Line of THs Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4 Area (sf) CN Adj Description 38,455 80 >75% Grass cover, Good, HSG D 19,000 98 Unconnected roofs, HSG D 57,455 86 98 Weighted Average, AMC Adjusted 38,455 66.93% Pervious Area 19,000 33.07% Impervious Area 19,000 100.00% Unconnected Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 3.4 40 0.0500 0.19 Sheet Flow, Grass: Short n= 0.150 P2= 2.87" 8.1 715 0.0440 1.47 Shallow Concentrated Flow, Short Grass Pasture Kv= 7.0 fps 11.5 755 Total Subcatchment 46uS: Rear Yards of South Townhomes Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.28 0.26 0.24 0.22 0.2 0.18 0.16 0.14 0.12 0.1 0.08 0.06 0.04 0.02 0 MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20" AMC=4 Runoff Area=57,455 sf Runoff Volume=0.765 af Runoff Depth=6.96" Flow Length=755' Tc=11.5 min AMC Adjusted CN=98 0.25 cfs MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 206HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 47S: Bluff Creek Pkwy - West Runoff = 0.45 cfs @ 121.30 hrs, Volume= 1.377 af, Depth= 6.96" Routed to Pond 47P : Bluff Creek - West Basin - 60" PIPE Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4 Area (sf) CN Adj Description * 52,305 80 >75% Grass cover, Good, HSG D 51,075 98 Paved roads w/curbs & sewers, HSG D 103,380 89 98 Weighted Average, AMC Adjusted 52,305 50.59% Pervious Area 51,075 49.41% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 10.0 Direct Entry, Subcatchment 47S: Bluff Creek Pkwy - West Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.5 0.48 0.46 0.44 0.42 0.4 0.38 0.36 0.34 0.32 0.3 0.28 0.26 0.24 0.22 0.2 0.18 0.16 0.14 0.12 0.1 0.08 0.06 0.04 0.02 0 MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20" AMC=4 Runoff Area=103,380 sf Runoff Volume=1.377 af Runoff Depth=6.96" Tc=10.0 min AMC Adjusted CN=98 0.45 cfs MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 207HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 48S: Bluff Creek Pkwy - East Runoff = 0.74 cfs @ 121.30 hrs, Volume= 2.246 af, Depth= 6.96" Routed to Pond 48P : Bluff Creek - East Basin Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4 Area (sf) CN Adj Description * 73,780 84 >75% Grass cover, Good, HSG D 94,920 98 Paved roads w/curbs & sewers, HSG D 168,700 92 98 Weighted Average, AMC Adjusted 73,780 43.73% Pervious Area 94,920 56.27% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 10.0 Direct Entry, Subcatchment 48S: Bluff Creek Pkwy - East Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.8 0.75 0.7 0.65 0.6 0.55 0.5 0.45 0.4 0.35 0.3 0.25 0.2 0.15 0.1 0.05 0 MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20" AMC=4 Runoff Area=168,700 sf Runoff Volume=2.246 af Runoff Depth=6.96" Tc=10.0 min AMC Adjusted CN=98 0.74 cfs MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 208HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 52S: South - Center Runoff = 1.27 cfs @ 121.47 hrs, Volume= 3.899 af, Depth= 6.96" Routed to Pond 52P : South-Center Temp Basin Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4 Area (sf) CN Adj Description 292,770 80 >75% Grass cover, Good, HSG D 292,770 80 98 Weighted Average, AMC Adjusted 292,770 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 13.7 100 0.0100 0.12 Sheet Flow, Grass: Short n= 0.150 P2= 2.87" 13.3 560 0.0100 0.70 Shallow Concentrated Flow, Short Grass Pasture Kv= 7.0 fps 27.0 660 Total Subcatchment 52S: South - Center Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)1 0 MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20" AMC=4 Runoff Area=292,770 sf Runoff Volume=3.899 af Runoff Depth=6.96" Flow Length=660' Slope=0.0100 '/' Tc=27.0 min AMC Adjusted CN=98 1.27 cfs MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 209HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 54S: South - East Runoff = 1.16 cfs @ 121.48 hrs, Volume= 3.544 af, Depth= 6.96" Routed to Pond 54P : South-East Temp Basin Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4 Area (sf) CN Adj Description 266,110 80 >75% Grass cover, Good, HSG D 266,110 80 98 Weighted Average, AMC Adjusted 266,110 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 14.3 168 0.0250 0.20 Sheet Flow, Grass: Short n= 0.150 P2= 2.87" 8.4 250 0.0050 0.49 Shallow Concentrated Flow, Short Grass Pasture Kv= 7.0 fps 5.0 Direct Entry, Pipe flow 27.7 418 Total Subcatchment 54S: South - East Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)1 0 MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20" AMC=4 Runoff Area=266,110 sf Runoff Volume=3.544 af Runoff Depth=6.96" Flow Length=418' Tc=27.7 min AMC Adjusted CN=98 1.16 cfs MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 210HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 55S: Direct to Bluff Creek - East Basin Runoff = 0.73 cfs @ 121.24 hrs, Volume= 2.227 af, Depth= 6.96" Routed to Pond 48P : Bluff Creek - East Basin Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4 Area (sf) CN Adj Description 167,215 80 >75% Grass cover, Good, HSG D 167,215 80 98 Weighted Average, AMC Adjusted 167,215 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 5.0 Direct Entry, Subcatchment 55S: Direct to Bluff Creek - East Basin Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.8 0.75 0.7 0.65 0.6 0.55 0.5 0.45 0.4 0.35 0.3 0.25 0.2 0.15 0.1 0.05 0 MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20" AMC=4 Runoff Area=167,215 sf Runoff Volume=2.227 af Runoff Depth=6.96" Tc=5.0 min AMC Adjusted CN=98 0.73 cfs MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 211HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 71-1S: Interlacn Subcatch 1 Runoff = 0.40 cfs @ 121.26 hrs, Volume= 1.207 af, Depth= 6.96" Routed to Pond 71P : Interlachen Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4 Area (ac) CN Adj Description * 2.080 84 Weoghted 2.080 84 98 Weighted Average, AMC Adjusted 2.080 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 7.0 Direct Entry, Subcatchment 71-1S: Interlacn Subcatch 1 Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.44 0.42 0.4 0.38 0.36 0.34 0.32 0.3 0.28 0.26 0.24 0.22 0.2 0.18 0.16 0.14 0.12 0.1 0.08 0.06 0.04 0.02 0 MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20" AMC=4 Runoff Area=2.080 ac Runoff Volume=1.207 af Runoff Depth=6.96" Tc=7.0 min AMC Adjusted CN=98 0.40 cfs MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 212HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 71-2S: Interlacn Subcatch 2 Runoff = 0.22 cfs @ 121.26 hrs, Volume= 0.696 af, Depth= 7.20" Routed to Pond 71P : Interlachen Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4 Area (ac) CN Description * 1.160 100 1.160 100.00% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 7.0 Direct Entry, Subcatchment 71-2S: Interlacn Subcatch 2 Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.24 0.23 0.22 0.21 0.2 0.19 0.18 0.17 0.16 0.15 0.14 0.13 0.12 0.11 0.1 0.09 0.08 0.07 0.06 0.05 0.04 0.03 0.02 0.01 0 MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20" AMC=4 Runoff Area=1.160 ac Runoff Volume=0.696 af Runoff Depth=7.20" Tc=7.0 min CN=100 0.22 cfs MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 213HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 72S: 6_Temp Runoff = 0.15 cfs @ 121.29 hrs, Volume= 0.470 af, Depth= 6.96" Routed to Reach 72R : N68 Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4 Area (ac) CN Adj Description * 0.810 94 Weighted 0.810 94 98 Weighted Average, AMC Adjusted 0.810 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 9.0 Direct Entry, Subcatchment 72S: 6_Temp Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.17 0.16 0.15 0.14 0.13 0.12 0.11 0.1 0.09 0.08 0.07 0.06 0.05 0.04 0.03 0.02 0.01 0 MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20" AMC=4 Runoff Area=0.810 ac Runoff Volume=0.470 af Runoff Depth=6.96" Tc=9.0 min AMC Adjusted CN=98 0.15 cfs MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 214HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 73S: N68 Runoff = 0.45 cfs @ 121.26 hrs, Volume= 1.369 af, Depth= 6.96" Routed to Reach 72R : N68 Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4 Area (ac) CN Description * 2.360 98 Weighted 2.360 100.00% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 7.0 Direct Entry, Subcatchment 73S: N68 Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.5 0.48 0.46 0.44 0.42 0.4 0.38 0.36 0.34 0.32 0.3 0.28 0.26 0.24 0.22 0.2 0.18 0.16 0.14 0.12 0.1 0.08 0.06 0.04 0.02 0 MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20" AMC=4 Runoff Area=2.360 ac Runoff Volume=1.369 af Runoff Depth=6.96" Tc=7.0 min CN=98 0.45 cfs MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 215HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 74S: 5_Temp Runoff = 0.19 cfs @ 121.29 hrs, Volume= 0.592 af, Depth= 6.96" Routed to Reach 72R : N68 Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4 Area (ac) CN Adj Description * 1.020 90 1.020 90 98 Weighted Average, AMC Adjusted 1.020 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 9.0 Direct Entry, Subcatchment 74S: 5_Temp Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.21 0.2 0.19 0.18 0.17 0.16 0.15 0.14 0.13 0.12 0.11 0.1 0.09 0.08 0.07 0.06 0.05 0.04 0.03 0.02 0.01 0 MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20" AMC=4 Runoff Area=1.020 ac Runoff Volume=0.592 af Runoff Depth=6.96" Tc=9.0 min AMC Adjusted CN=98 0.19 cfs MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 216HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 75S: 3225 Runoff = 0.58 cfs @ 121.26 hrs, Volume= 1.746 af, Depth= 6.96" Routed to Pond 71P : Interlachen Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4 Area (ac) CN Description * 3.010 98 Weighted 3.010 100.00% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 7.0 Direct Entry, Subcatchment 75S: 3225 Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.6 0.55 0.5 0.45 0.4 0.35 0.3 0.25 0.2 0.15 0.1 0.05 0 MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20" AMC=4 Runoff Area=3.010 ac Runoff Volume=1.746 af Runoff Depth=6.96" Tc=7.0 min CN=98 0.58 cfs MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 217HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 76S: 3236 Runoff = 1.58 cfs @ 121.35 hrs, Volume= 4.820 af, Depth= 6.96" Routed to Pond 71P : Interlachen Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4 Area (ac) CN Adj Description * 8.310 80 Weighted 8.310 80 98 Weighted Average, AMC Adjusted 8.310 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 14.0 Direct Entry, Subcatchment 76S: 3236 Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)1 0 MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20" AMC=4 Runoff Area=8.310 ac Runoff Volume=4.820 af Runoff Depth=6.96" Tc=14.0 min AMC Adjusted CN=98 1.58 cfs MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 218HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 77S: 3238 Runoff = 0.18 cfs @ 121.26 hrs, Volume= 0.551 af, Depth= 6.96" Routed to Pond 71P : Interlachen Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4 Area (ac) CN Adj Description * 0.950 83 Weighted 0.950 83 98 Weighted Average, AMC Adjusted 0.950 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 7.0 Direct Entry, Subcatchment 77S: 3238 Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.2 0.19 0.18 0.17 0.16 0.15 0.14 0.13 0.12 0.11 0.1 0.09 0.08 0.07 0.06 0.05 0.04 0.03 0.02 0.01 0 MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20" AMC=4 Runoff Area=0.950 ac Runoff Volume=0.551 af Runoff Depth=6.96" Tc=7.0 min AMC Adjusted CN=98 0.18 cfs MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 219HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 78S: 3243 Runoff = 0.12 cfs @ 121.26 hrs, Volume= 0.365 af, Depth= 6.96" Routed to Pond 71P : Interlachen Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4 Area (ac) CN Adj Description * 0.630 91 Weighted 0.630 91 98 Weighted Average, AMC Adjusted 0.630 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 7.0 Direct Entry, Subcatchment 78S: 3243 Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.13 0.12 0.11 0.1 0.09 0.08 0.07 0.06 0.05 0.04 0.03 0.02 0.01 0 MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20" AMC=4 Runoff Area=0.630 ac Runoff Volume=0.365 af Runoff Depth=6.96" Tc=7.0 min AMC Adjusted CN=98 0.12 cfs MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 220HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 79S: 3245 Runoff = 0.39 cfs @ 121.26 hrs, Volume= 1.189 af, Depth= 6.96" Routed to Pond 71P : Interlachen Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4 Area (ac) CN Description * 2.050 98 Weighted 2.050 100.00% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 7.0 Direct Entry, Subcatchment 79S: 3245 Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.42 0.4 0.38 0.36 0.34 0.32 0.3 0.28 0.26 0.24 0.22 0.2 0.18 0.16 0.14 0.12 0.1 0.08 0.06 0.04 0.02 0 MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20" AMC=4 Runoff Area=2.050 ac Runoff Volume=1.189 af Runoff Depth=6.96" Tc=7.0 min CN=98 0.39 cfs MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 221HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 80S: 3250 Runoff = 0.07 cfs @ 121.26 hrs, Volume= 0.203 af, Depth= 6.96" Routed to Pond 71P : Interlachen Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4 Area (ac) CN Adj Description * 0.350 90 Weighted 0.350 90 98 Weighted Average, AMC Adjusted 0.350 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 7.0 Direct Entry, Subcatchment 80S: 3250 Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.07 0.065 0.06 0.055 0.05 0.045 0.04 0.035 0.03 0.025 0.02 0.015 0.01 0.005 0 MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20" AMC=4 Runoff Area=0.350 ac Runoff Volume=0.203 af Runoff Depth=6.96" Tc=7.0 min AMC Adjusted CN=98 0.07 cfs MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 222HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 81S: 3343 Runoff = 1.13 cfs @ 121.41 hrs, Volume= 3.451 af, Depth= 6.96" Routed to Pond 71P : Interlachen Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4 Area (ac) CN Adj Description * 5.950 76 Weighted 5.950 76 98 Weighted Average, AMC Adjusted 5.950 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 19.0 Direct Entry, Subcatchment 81S: 3343 Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)1 0 MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20" AMC=4 Runoff Area=5.950 ac Runoff Volume=3.451 af Runoff Depth=6.96" Tc=19.0 min AMC Adjusted CN=98 1.13 cfs MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 223HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 82S: 3345 Runoff = 0.28 cfs @ 121.26 hrs, Volume= 0.858 af, Depth= 6.96" Routed to Pond 71P : Interlachen Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4 Area (ac) CN Adj Description * 1.480 78 Weighted 1.480 78 98 Weighted Average, AMC Adjusted 1.480 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 7.0 Direct Entry, Subcatchment 82S: 3345 Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.3 0.28 0.26 0.24 0.22 0.2 0.18 0.16 0.14 0.12 0.1 0.08 0.06 0.04 0.02 0 MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20" AMC=4 Runoff Area=1.480 ac Runoff Volume=0.858 af Runoff Depth=6.96" Tc=7.0 min AMC Adjusted CN=98 0.28 cfs MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 224HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 83S: 3348 Runoff = 0.13 cfs @ 121.26 hrs, Volume= 0.406 af, Depth= 6.96" Routed to Pond 71P : Interlachen Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4 Area (ac) CN Adj Description * 0.700 87 Weighted 0.700 87 98 Weighted Average, AMC Adjusted 0.700 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 7.0 Direct Entry, Subcatchment 83S: 3348 Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.14 0.13 0.12 0.11 0.1 0.09 0.08 0.07 0.06 0.05 0.04 0.03 0.02 0.01 0 MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20" AMC=4 Runoff Area=0.700 ac Runoff Volume=0.406 af Runoff Depth=6.96" Tc=7.0 min AMC Adjusted CN=98 0.13 cfs MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 225HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 84S: SE12 Runoff = 0.40 cfs @ 121.31 hrs, Volume= 1.218 af, Depth= 6.96" Routed to Pond 72P : South MNDOT M9 Wetland Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4 Area (ac) CN Adj Description * 2.100 79 Weighted 2.100 79 98 Weighted Average, AMC Adjusted 2.100 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 11.0 Direct Entry, Subcatchment 84S: SE12 Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.44 0.42 0.4 0.38 0.36 0.34 0.32 0.3 0.28 0.26 0.24 0.22 0.2 0.18 0.16 0.14 0.12 0.1 0.08 0.06 0.04 0.02 0 MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20" AMC=4 Runoff Area=2.100 ac Runoff Volume=1.218 af Runoff Depth=6.96" Tc=11.0 min AMC Adjusted CN=98 0.40 cfs MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 226HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 85S: 1S Runoff = 0.86 cfs @ 121.35 hrs, Volume= 2.628 af, Depth= 6.96" Routed to Pond 72P : South MNDOT M9 Wetland Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4 Area (ac) CN Adj Description * 4.530 69 Weighted 4.530 69 98 Weighted Average, AMC Adjusted 4.530 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 15.0 Direct Entry, Subcatchment 85S: 1S Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.95 0.9 0.85 0.8 0.75 0.7 0.65 0.6 0.55 0.5 0.45 0.4 0.35 0.3 0.25 0.2 0.15 0.1 0.05 0 MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20" AMC=4 Runoff Area=4.530 ac Runoff Volume=2.628 af Runoff Depth=6.96" Tc=15.0 min AMC Adjusted CN=98 0.86 cfs MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 227HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 86S: 2S Runoff = 1.10 cfs @ 121.47 hrs, Volume= 3.364 af, Depth= 6.96" Routed to Pond 72P : South MNDOT M9 Wetland Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4 Area (ac) CN Adj Description * 5.800 69 Weighted 5.800 69 98 Weighted Average, AMC Adjusted 5.800 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 25.0 Direct Entry, Subcatchment 86S: 2S Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)1 0 MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20" AMC=4 Runoff Area=5.800 ac Runoff Volume=3.364 af Runoff Depth=6.96" Tc=25.0 min AMC Adjusted CN=98 1.10 cfs MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 228HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 87S: M9 Runoff = 4.10 cfs @ 121.51 hrs, Volume= 12.551 af, Depth= 6.96" Routed to Pond 72P : South MNDOT M9 Wetland Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4 Area (ac) CN Adj Description * 21.638 76 Weighted 21.638 76 98 Weighted Average, AMC Adjusted 21.638 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 29.0 Direct Entry, Subcatchment 87S: M9 Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)4 3 2 1 0 MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20" AMC=4 Runoff Area=21.638 ac Runoff Volume=12.551 af Runoff Depth=6.96" Tc=29.0 min AMC Adjusted CN=98 4.10 cfs MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 229HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Reach 40R: South Drainage [40] Hint: Not Described (Outflow=Inflow) Inflow Area = 47.277 ac, 10.23% Impervious, Inflow Depth = 6.96" for 10 day snowmelt event Inflow = 6.52 cfs @ 121.85 hrs, Volume= 27.418 af Outflow = 6.52 cfs @ 121.85 hrs, Volume= 27.418 af, Atten= 0%, Lag= 0.0 min Routed to Pond 72P : South MNDOT M9 Wetland Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Reach 40R: South Drainage Inflow Outflow Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)7 6 5 4 3 2 1 0 Inflow Area=47.277 ac 6.52 cfs 6.52 cfs MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 230HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Reach 42.2R: Southeast [40] Hint: Not Described (Outflow=Inflow) Inflow Area = 14.645 ac, 15.49% Impervious, Inflow Depth > 6.96" for 10 day snowmelt event Inflow = 1.28 cfs @ 127.15 hrs, Volume= 8.492 af Outflow = 1.28 cfs @ 127.15 hrs, Volume= 8.492 af, Atten= 0%, Lag= 0.0 min Routed to Reach 40R : South Drainage Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Reach 42.2R: Southeast Inflow Outflow Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)1 0 Inflow Area=14.645 ac 1.28 cfs 1.28 cfs MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 231HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Reach 44R: Southwest [40] Hint: Not Described (Outflow=Inflow) Inflow Area = 29.409 ac, 8.74% Impervious, Inflow Depth = 6.96" for 10 day snowmelt event Inflow = 4.76 cfs @ 121.90 hrs, Volume= 17.056 af Outflow = 4.76 cfs @ 121.90 hrs, Volume= 17.056 af, Atten= 0%, Lag= 0.0 min Routed to Reach 40R : South Drainage Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Reach 44R: Southwest Inflow Outflow Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)5 4 3 2 1 0 Inflow Area=29.409 ac 4.76 cfs 4.76 cfs MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 232HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Reach 46uR: South Swale - at East Property Line of THs Inflow Area = 1.319 ac, 33.07% Impervious, Inflow Depth = 6.96" for 10 day snowmelt event Inflow = 0.25 cfs @ 121.30 hrs, Volume= 0.765 af Outflow = 0.25 cfs @ 121.33 hrs, Volume= 0.765 af, Atten= 0%, Lag= 1.6 min Routed to Pond 46P : Triangle Basin Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Max. Velocity= 1.43 fps, Min. Travel Time= 0.4 min Avg. Velocity = 0.67 fps, Avg. Travel Time= 0.8 min Peak Storage= 6 cf @ 121.33 hrs Average Depth at Peak Storage= 0.06' , Surface Width= 3.33' Bank-Full Depth= 0.50' Flow Area= 2.3 sf, Capacity= 11.72 cfs 3.00' x 0.50' deep channel, n= 0.025 Short grass Side Slope Z-value= 3.0 '/' Top Width= 6.00' Length= 34.0' Slope= 0.0294 '/' Inlet Invert= 894.00', Outlet Invert= 893.00' ‡ Reach 46uR: South Swale - at East Property Line of THs Inflow Outflow Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.28 0.26 0.24 0.22 0.2 0.18 0.16 0.14 0.12 0.1 0.08 0.06 0.04 0.02 0 Inflow Area=1.319 ac Avg. Flow Depth=0.06' Max Vel=1.43 fps n=0.025 L=34.0' S=0.0294 '/' Capacity=11.72 cfs 0.25 cfs 0.25 cfs MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 233HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Reach 48R: Developed Area To Wetland 4 [40] Hint: Not Described (Outflow=Inflow) Inflow Area = 2.860 ac, 40.99% Impervious, Inflow Depth = 6.96" for 10 day snowmelt event Inflow = 0.49 cfs @ 122.03 hrs, Volume= 1.659 af Outflow = 0.49 cfs @ 122.03 hrs, Volume= 1.659 af, Atten= 0%, Lag= 0.0 min Routed to Pond 44P : Wetland 4 Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Reach 48R: Developed Area To Wetland 4 Inflow Outflow Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.5 0.45 0.4 0.35 0.3 0.25 0.2 0.15 0.1 0.05 0 Inflow Area=2.860 ac 0.49 cfs 0.49 cfs MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 234HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Reach 72R: N68 [52] Hint: Inlet/Outlet conditions not evaluated Inflow Area = 4.190 ac, 56.32% Impervious, Inflow Depth = 6.96" for 10 day snowmelt event Inflow = 0.80 cfs @ 121.27 hrs, Volume= 2.430 af Outflow = 0.80 cfs @ 121.28 hrs, Volume= 2.430 af, Atten= 0%, Lag= 0.5 min Routed to Pond 71P : Interlachen Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Max. Velocity= 3.23 fps, Min. Travel Time= 0.3 min Avg. Velocity = 1.77 fps, Avg. Travel Time= 0.6 min Peak Storage= 16 cf @ 121.28 hrs Average Depth at Peak Storage= 0.27' , Surface Width= 1.36' Bank-Full Depth= 2.00' Flow Area= 3.1 sf, Capacity= 21.17 cfs 24.0" Round Pipe n= 0.012 Length= 63.0' Slope= 0.0075 '/' Inlet Invert= 872.00', Outlet Invert= 871.53' MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 235HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Reach 72R: N68 Inflow Outflow Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.85 0.8 0.75 0.7 0.65 0.6 0.55 0.5 0.45 0.4 0.35 0.3 0.25 0.2 0.15 0.1 0.05 0 Inflow Area=4.190 ac Avg. Flow Depth=0.27' Max Vel=3.23 fps 24.0" Round Pipe n=0.012 L=63.0' S=0.0075 '/' Capacity=21.17 cfs 0.80 cfs 0.80 cfs MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 236HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Pond 41.3P: South-West Temp Basin Inflow Area = 14.560 ac, 9.59% Impervious, Inflow Depth = 6.96" for 10 day snowmelt event Inflow = 2.75 cfs @ 121.37 hrs, Volume= 8.446 af Outflow = 2.26 cfs @ 122.76 hrs, Volume= 8.443 af, Atten= 18%, Lag= 83.4 min Primary = 1.90 cfs @ 122.76 hrs, Volume= 8.364 af Routed to Reach 44R : Southwest Secondary = 0.36 cfs @ 122.76 hrs, Volume= 0.079 af Routed to Reach 44R : Southwest Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 877.24' @ 122.76 hrs Surf.Area= 17,627 sf Storage= 22,750 cf Plug-Flow detention time= 178.7 min calculated for 8.443 af (100% of inflow) Center-of-Mass det. time= 176.2 min ( 7,645.5 - 7,469.3 ) Volume Invert Avail.Storage Storage Description #1 875.63' 126,081 cf Surface Basin (Prismatic) Listed below (Recalc) Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 875.63 8,290 0 0 876.00 12,755 3,893 3,893 878.00 20,605 33,360 37,253 879.00 26,525 23,565 60,818 880.00 32,000 29,263 90,081 881.00 40,000 36,000 126,081 Device Routing Invert Outlet Devices #1 Primary 875.63'15.0" Round Culvert L= 46.0' RCP, end-section conforming to fill, Ke= 0.500 Inlet / Outlet Invert= 875.63' / 875.00' S= 0.0137 '/' Cc= 0.900 n= 0.011 Concrete pipe, straight & clean, Flow Area= 1.23 sf #2 Secondary 877.00'24.0" Round Culvert L= 46.0' RCP, end-section conforming to fill, Ke= 0.500 Inlet / Outlet Invert= 877.00' / 876.37' S= 0.0137 '/' Cc= 0.900 n= 0.011 Concrete pipe, straight & clean, Flow Area= 3.14 sf #3 Device 1 875.63'8.0" Round Culvert L= 8.0' CPP, square edge headwall, Ke= 0.500 Inlet / Outlet Invert= 875.63' / 875.52' S= 0.0138 '/' Cc= 0.900 n= 0.011 PVC, smooth interior, Flow Area= 0.35 sf Primary OutFlow Max=1.90 cfs @ 122.76 hrs HW=877.24' TW=0.00' (Dynamic Tailwater) 1=Culvert (Passes 1.90 cfs of 5.87 cfs potential flow) 3=Culvert (Inlet Controls 1.90 cfs @ 5.44 fps) Secondary OutFlow Max=0.36 cfs @ 122.76 hrs HW=877.24' TW=0.00' (Dynamic Tailwater) 2=Culvert (Inlet Controls 0.36 cfs @ 1.67 fps) MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 237HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Pond 41.3P: South-West Temp Basin Inflow Outflow Primary Secondary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)3 2 1 0 Inflow Area=14.560 ac Peak Elev=877.24' Storage=22,750 cf 2.75 cfs 2.26 cfs 1.90 cfs 0.36 cfs MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 238HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Pond 44P: Wetland 4 Inflow Area = 13.102 ac, 8.95% Impervious, Inflow Depth = 6.96" for 10 day snowmelt event Inflow = 2.40 cfs @ 121.49 hrs, Volume= 7.600 af Outflow = 2.40 cfs @ 121.50 hrs, Volume= 7.599 af, Atten= 0%, Lag= 0.7 min Primary = 2.40 cfs @ 121.50 hrs, Volume= 7.599 af Routed to Reach 44R : Southwest Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 884.27' @ 121.50 hrs Surf.Area= 1,471 sf Storage= 317 cf Plug-Flow detention time= 6.3 min calculated for 7.599 af (100% of inflow) Center-of-Mass det. time= 5.6 min ( 7,442.9 - 7,437.3 ) Volume Invert Avail.Storage Storage Description #1 884.00' 37,633 cf Custom Stage Data (Prismatic) Listed below (Recalc) Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 884.00 870 0 0 884.50 1,980 713 713 885.00 3,500 1,370 2,083 886.00 7,800 5,650 7,733 887.00 14,000 10,900 18,633 888.00 24,000 19,000 37,633 Device Routing Invert Outlet Devices #1 Primary 884.03'Asymmetrical Weir, C= 3.27 Offset (feet) 0.00 51.00 133.60 176.00 217.30 239.00 Elev. (feet) 889.78 886.05 884.03 885.84 889.00 889.78 Primary OutFlow Max=2.40 cfs @ 121.50 hrs HW=884.27' TW=0.00' (Dynamic Tailwater) 1=Asymmetrical Weir (Weir Controls 2.40 cfs @ 0.64 fps) MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 239HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Pond 44P: Wetland 4 Inflow Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)2 1 0 Inflow Area=13.102 ac Peak Elev=884.27' Storage=317 cf 2.40 cfs 2.40 cfs MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 240HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Pond 46P: Triangle Basin Inflow Area = 2.769 ac, 15.75% Impervious, Inflow Depth = 6.96" for 10 day snowmelt event Inflow = 0.53 cfs @ 121.30 hrs, Volume= 1.606 af Outflow = 0.52 cfs @ 121.47 hrs, Volume= 1.606 af, Atten= 1%, Lag= 9.9 min Primary = 0.52 cfs @ 121.47 hrs, Volume= 1.606 af Routed to Pond 41.3P : South-West Temp Basin Secondary = 0.00 cfs @ 0.00 hrs, Volume= 0.000 af Routed to Pond 41.3P : South-West Temp Basin Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 888.32' @ 121.47 hrs Surf.Area= 3,060 sf Storage= 2,681 cf Plug-Flow detention time= 388.5 min calculated for 1.606 af (100% of inflow) Center-of-Mass det. time= 388.5 min ( 7,775.9 - 7,387.4 ) Volume Invert Avail.Storage Storage Description #1 887.17' 14,801 cf Open pond (Prismatic) Listed below (Recalc) Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 887.17 1,586 0 0 890.90 6,350 14,801 14,801 Device Routing Invert Outlet Devices #1 Primary 884.37'18.0" Round Culvert L= 125.0' RCP, sq.cut end projecting, Ke= 0.500 Inlet / Outlet Invert= 884.37' / 875.62' S= 0.0700 '/' Cc= 0.900 n= 0.011 Concrete pipe, straight & clean, Flow Area= 1.77 sf #2 Device 1 888.00'15.0" Vert. Orifice/Grate C= 0.600 Limited to weir flow at low heads #3 Secondary 890.75'20.0' long x 5.0' breadth Broad-Crested Rectangular Weir Head (feet) 0.20 0.40 0.60 0.80 1.00 1.20 1.40 1.60 1.80 2.00 2.50 3.00 3.50 4.00 4.50 5.00 5.50 Coef. (English) 2.34 2.50 2.70 2.68 2.68 2.66 2.65 2.65 2.65 2.65 2.67 2.66 2.68 2.70 2.74 2.79 2.88 #4 Device 1 887.17'0.450 in/hr Filtration over Surface area Phase-In= 0.01' Primary OutFlow Max=0.52 cfs @ 121.47 hrs HW=888.32' TW=877.14' (Dynamic Tailwater) 1=Culvert (Passes 0.52 cfs of 15.23 cfs potential flow) 2=Orifice/Grate (Orifice Controls 0.49 cfs @ 1.94 fps) 4=Filtration (Exfiltration Controls 0.03 cfs) Secondary OutFlow Max=0.00 cfs @ 0.00 hrs HW=887.17' TW=875.63' (Dynamic Tailwater) 3=Broad-Crested Rectangular Weir ( Controls 0.00 cfs) MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 241HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Pond 46P: Triangle Basin Inflow Outflow Primary Secondary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.55 0.5 0.45 0.4 0.35 0.3 0.25 0.2 0.15 0.1 0.05 0 Inflow Area=2.769 ac Peak Elev=888.32' Storage=2,681 cf 0.53 cfs 0.52 cfs 0.52 cfs 0.00 cfs MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 242HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Pond 47P: Bluff Creek - West Basin - 60" PIPE Inflow Area = 2.860 ac, 40.99% Impervious, Inflow Depth = 6.96" for 10 day snowmelt event Inflow = 0.55 cfs @ 121.28 hrs, Volume= 1.659 af Outflow = 0.49 cfs @ 122.03 hrs, Volume= 1.659 af, Atten= 11%, Lag= 45.0 min Primary = 0.49 cfs @ 122.03 hrs, Volume= 1.659 af Routed to Reach 48R : Developed Area To Wetland 4 Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 909.80' @ 122.03 hrs Surf.Area= 6,385 sf Storage= 6,507 cf Plug-Flow detention time= 204.3 min calculated for 1.659 af (100% of inflow) Center-of-Mass det. time= 204.3 min ( 7,589.1 - 7,384.8 ) Volume Invert Avail.Storage Storage Description #1A 908.00' 8,037 cf 56.09'W x 113.17'L x 6.08'H Field A 38,615 cf Overall - 18,524 cf Embedded = 20,091 cf x 40.0% Voids #2A 908.00' 15,598 cf ADS N-12 60" x 35 Inside #1 Inside= 59.5"W x 59.5"H => 19.30 sf x 20.00'L = 386.0 cf Outside= 67.0"W x 67.0"H => 22.92 sf x 20.00'L = 458.4 cf 35 Chambers in 7 Rows 54.09' Header x 19.30 sf x 2 = 2,087.7 cf Inside #3 908.00' 34,645 cf 4.00'D x 919.00'H Vertical Cone/Cylinder x 3 58,280 cf Total Available Storage Storage Group A created with Chamber Wizard Device Routing Invert Outlet Devices #1 Primary 905.20'15.0" Round Culvert L= 312.0' RCP, square edge headwall, Ke= 0.500 Inlet / Outlet Invert= 905.20' / 901.89' S= 0.0106 '/' Cc= 0.900 n= 0.013 Concrete pipe, straight & clean, Flow Area= 1.23 sf #2 Device 1 905.50'14.0" Round Culvert L= 20.0' CPP, square edge headwall, Ke= 0.500 Inlet / Outlet Invert= 905.50' / 905.20' S= 0.0150 '/' Cc= 0.900 n= 0.011 PVC, smooth interior, Flow Area= 1.07 sf #3 Device 2 909.50'12.0" Vert. Orifice - Overflow C= 0.600 Limited to weir flow at low heads #4 Device 2 906.00'8.0" Vert. Orifice - Underdrain C= 0.600 Limited to weir flow at low heads #5 Device 4 908.00'0.800 in/hr Filtration over Horizontal area Phase-In= 0.01' Primary OutFlow Max=0.49 cfs @ 122.03 hrs HW=909.80' TW=0.00' (Dynamic Tailwater) 1=Culvert (Passes 0.49 cfs of 8.58 cfs potential flow) 2=Culvert (Passes 0.49 cfs of 9.92 cfs potential flow) 3=Orifice - Overflow (Orifice Controls 0.37 cfs @ 1.87 fps) 4=Orifice - Underdrain (Passes 0.12 cfs of 3.13 cfs potential flow) 5=Filtration (Exfiltration Controls 0.12 cfs) MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 243HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Pond 47P: Bluff Creek - West Basin - 60" PIPE - Chamber Wizard Field A Chamber Model = ADS N-12 60" (ADS N-12® Pipe) Inside= 59.5"W x 59.5"H => 19.30 sf x 20.00'L = 386.0 cf Outside= 67.0"W x 67.0"H => 22.92 sf x 20.00'L = 458.4 cf 67.0" Wide + 30.0" Spacing = 97.0" C-C Row Spacing 5 Chambers/Row x 20.00' Long +5.58' Header x 2 = 111.17' Row Length +12.0" End Stone x 2 = 113.17' Base Length 7 Rows x 67.0" Wide + 30.0" Spacing x 6 + 12.0" Side Stone x 2 = 56.09' Base Width 67.0" Chamber Height + 6.0" Stone Cover = 6.08' Field Height 35 Chambers x 386.0 cf + 54.09' Header x 19.30 sf x 2 = 15,597.7 cf Chamber Storage 35 Chambers x 458.4 cf + 54.09' Header x 22.92 sf x 2 = 18,524.0 cf Displacement 38,615.4 cf Field - 18,524.0 cf Chambers = 20,091.4 cf Stone x 40.0% Voids = 8,036.6 cf Stone Storage Chamber Storage + Stone Storage = 23,634.3 cf = 0.543 af Overall Storage Efficiency = 61.2% Overall System Size = 113.17' x 56.09' x 6.08' 35 Chambers 1,430.2 cy Field 744.1 cy Stone MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 244HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Pond 47P: Bluff Creek - West Basin - 60" PIPE Inflow Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.6 0.55 0.5 0.45 0.4 0.35 0.3 0.25 0.2 0.15 0.1 0.05 0 Inflow Area=2.860 ac Peak Elev=909.80' Storage=6,507 cf 0.55 cfs 0.49 cfs MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 245HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Pond 48P: Bluff Creek - East Basin [44] Hint: Outlet device #2 is below defined storage Inflow Area = 7.828 ac, 28.98% Impervious, Inflow Depth = 6.96" for 10 day snowmelt event Inflow = 1.49 cfs @ 121.26 hrs, Volume= 4.541 af Outflow = 0.91 cfs @ 123.91 hrs, Volume= 4.541 af, Atten= 39%, Lag= 159.0 min Primary = 0.91 cfs @ 123.91 hrs, Volume= 4.541 af Routed to Pond 54P : South-East Temp Basin Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 897.71' @ 123.91 hrs Surf.Area= 41,961 sf Storage= 21,043 cf Plug-Flow detention time= (not calculated: outflow precedes inflow) Center-of-Mass det. time= 242.3 min ( 7,625.5 - 7,383.3 ) Volume Invert Avail.Storage Storage Description #1 897.20' 340,085 cf Open Pond (Prismatic) Listed below (Recalc) Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 897.20 40,540 0 0 904.00 59,485 340,085 340,085 Device Routing Invert Outlet Devices #1 Primary 895.35'12.0" Round Culvert L= 637.0' RCP, sq.cut end projecting, Ke= 0.500 Inlet / Outlet Invert= 895.35' / 888.98' S= 0.0100 '/' Cc= 0.900 n= 0.017 Concrete sewer w/manholes & inlets, Flow Area= 0.79 sf #2 Device 1 897.00'8.0" Round Temp Outlet Pipe L= 21.0' CPP, mitered to conform to fill, Ke= 0.700 Inlet / Outlet Invert= 897.00' / 895.35' S= 0.0786 '/' Cc= 0.900 n= 0.011 PVC, smooth interior, Flow Area= 0.35 sf Primary OutFlow Max=0.91 cfs @ 123.91 hrs HW=897.71' TW=881.23' (Dynamic Tailwater) 1=Culvert (Passes 0.91 cfs of 2.93 cfs potential flow) 2=Temp Outlet Pipe (Inlet Controls 0.91 cfs @ 2.61 fps) MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 246HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Pond 48P: Bluff Creek - East Basin Inflow Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)1 0 Inflow Area=7.828 ac Peak Elev=897.71' Storage=21,043 cf 1.49 cfs 0.91 cfs MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 247HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Pond 52P: South-Center Temp Basin Inflow Area = 8.180 ac, 9.42% Impervious, Inflow Depth = 6.96" for 10 day snowmelt event Inflow = 1.55 cfs @ 121.41 hrs, Volume= 4.745 af Outflow = 1.55 cfs @ 121.48 hrs, Volume= 4.745 af, Atten= 0%, Lag= 4.2 min Primary = 1.55 cfs @ 121.48 hrs, Volume= 4.745 af Routed to Pond 41.3P : South-West Temp Basin Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 903.49' @ 121.48 hrs Surf.Area= 1,524 sf Storage= 265 cf Plug-Flow detention time= 3.8 min calculated for 4.745 af (100% of inflow) Center-of-Mass det. time= 3.8 min ( 7,402.9 - 7,399.1 ) Volume Invert Avail.Storage Storage Description #1 903.14' 49,230 cf Custom Stage Data (Prismatic) Listed below (Recalc) Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 903.14 10 0 0 904.00 3,775 1,628 1,628 905.00 19,015 11,395 13,023 906.00 53,400 36,208 49,230 Device Routing Invert Outlet Devices #1 Primary 903.14'Custom Weir/Orifice, Cv= 2.62 (C= 3.28) Head (feet) 0.00 0.25 0.50 0.75 1.00 2.00 Width (feet) 0.10 4.20 6.25 8.30 12.50 12.50 Primary OutFlow Max=1.55 cfs @ 121.48 hrs HW=903.49' TW=877.14' (Dynamic Tailwater) 1=Custom Weir/Orifice (Weir Controls 1.55 cfs @ 1.58 fps) MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 248HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Pond 52P: South-Center Temp Basin Inflow Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)1 0 Inflow Area=8.180 ac Peak Elev=903.49' Storage=265 cf 1.55 cfs 1.55 cfs MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 249HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Pond 54P: South-East Temp Basin Inflow Area = 13.937 ac, 16.28% Impervious, Inflow Depth = 6.96" for 10 day snowmelt event Inflow = 2.00 cfs @ 121.60 hrs, Volume= 8.084 af Outflow = 1.23 cfs @ 128.22 hrs, Volume= 8.081 af, Atten= 38%, Lag= 397.1 min Primary = 1.23 cfs @ 128.22 hrs, Volume= 8.081 af Routed to Reach 42.2R : Southeast Secondary = 0.00 cfs @ 0.00 hrs, Volume= 0.000 af Routed to Reach 42.2R : Southeast Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 881.44' @ 128.22 hrs Surf.Area= 15,875 sf Storage= 33,180 cf Plug-Flow detention time= 310.7 min calculated for 8.081 af (100% of inflow) Center-of-Mass det. time= 308.5 min ( 7,836.0 - 7,527.6 ) Volume Invert Avail.Storage Storage Description #1 879.00' 121,861 cf Custom Stage Data (Prismatic) Listed below (Recalc) Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 879.00 11,945 0 0 881.00 14,583 26,528 26,528 883.00 20,500 35,083 61,611 884.00 100,000 60,250 121,861 Device Routing Invert Outlet Devices #1 Primary 874.38'18.0" Round Culvert L= 68.0' RCP, sq.cut end projecting, Ke= 0.500 Inlet / Outlet Invert= 874.38' / 874.05' S= 0.0049 '/' Cc= 0.900 n= 0.013 Concrete pipe, straight & clean, Flow Area= 1.77 sf #2 Device 1 879.00'6.0" Round Culvert L= 29.0' CPP, mitered to conform to fill, Ke= 0.700 Inlet / Outlet Invert= 879.00' / 878.71' S= 0.0100 '/' Cc= 0.900 n= 0.011 PVC, smooth interior, Flow Area= 0.20 sf #3 Secondary 883.85'25.0' long x 50.0' breadth Broad-Crested Rectangular Weir Head (feet) 0.20 0.40 0.60 0.80 1.00 1.20 1.40 1.60 Coef. (English) 2.68 2.70 2.70 2.64 2.63 2.64 2.64 2.63 Primary OutFlow Max=1.23 cfs @ 128.22 hrs HW=881.44' TW=0.00' (Dynamic Tailwater) 1=Culvert (Passes 1.23 cfs of 20.77 cfs potential flow) 2=Culvert (Inlet Controls 1.23 cfs @ 6.28 fps) Secondary OutFlow Max=0.00 cfs @ 0.00 hrs HW=879.00' TW=0.00' (Dynamic Tailwater) 3=Broad-Crested Rectangular Weir ( Controls 0.00 cfs) MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 250HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Pond 54P: South-East Temp Basin Inflow Outflow Primary Secondary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)2 1 0 Inflow Area=13.937 ac Peak Elev=881.44' Storage=33,180 cf 2.00 cfs 1.23 cfs 1.23 cfs 0.00 cfs MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 251HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Pond 71P: Interlachen [44] Hint: Outlet device #2 is below defined storage [87] Warning: Oscillations may require smaller dt or Finer Routing (severity=20) [61] Hint: Exceeded Reach 72R outlet invert by 0.05' @ 138.99 hrs Inflow Area = 30.860 ac, 27.80% Impervious, Inflow Depth = 6.97" for 10 day snowmelt event Inflow = 5.88 cfs @ 121.28 hrs, Volume= 17.924 af Outflow = 4.59 cfs @ 121.71 hrs, Volume= 17.888 af, Atten= 22%, Lag= 25.2 min Primary = 4.59 cfs @ 121.71 hrs, Volume= 17.888 af Routed to Pond 72P : South MNDOT M9 Wetland Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 871.58' @ 138.99 hrs Surf.Area= 55,537 sf Storage= 83,791 cf Plug-Flow detention time= 829.4 min calculated for 17.888 af (100% of inflow) Center-of-Mass det. time= 815.5 min ( 8,194.8 - 7,379.4 ) Volume Invert Avail.Storage Storage Description #1 870.00' 381,460 cf Custom Stage Data (Prismatic) Listed below (Recalc) Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 870.00 50,570 0 0 872.00 56,860 107,430 107,430 875.00 74,330 196,785 304,215 876.00 80,160 77,245 381,460 Device Routing Invert Outlet Devices #1 Primary 870.00'24.0" Round Culvert L= 33.0' RCP, square edge headwall, Ke= 0.500 Inlet / Outlet Invert= 870.00' / 869.67' S= 0.0100 '/' Cc= 0.900 n= 0.012, Flow Area= 3.14 sf #2 Device 1 866.61'24.0" Round Culvert L= 21.0' RCP, end-section conforming to fill, Ke= 0.500 Inlet / Outlet Invert= 866.50' / 866.61' S= -0.0052 '/' Cc= 0.900 n= 0.012, Flow Area= 3.14 sf Primary OutFlow Max=4.58 cfs @ 121.71 hrs HW=871.35' TW=871.11' (Dynamic Tailwater) 1=Culvert (Outlet Controls 4.58 cfs @ 2.88 fps) 2=Culvert (Passes 4.58 cfs of 7.37 cfs potential flow) MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 252HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Pond 71P: Interlachen Inflow Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)6 5 4 3 2 1 0 Inflow Area=30.860 ac Peak Elev=871.58' Storage=83,791 cf 5.88 cfs 4.59 cfs MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 253HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Pond 72P: South MNDOT M9 Wetland [44] Hint: Outlet device #3 is below defined storage Inflow Area = 112.205 ac, 11.96% Impervious, Inflow Depth > 6.96" for 10 day snowmelt event Inflow = 17.49 cfs @ 121.58 hrs, Volume= 65.067 af Outflow = 4.74 cfs @ 139.40 hrs, Volume= 63.877 af, Atten= 73%, Lag= 1,069.1 min Primary = 4.74 cfs @ 139.40 hrs, Volume= 63.877 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 871.57' @ 139.40 hrs Surf.Area= 514,117 sf Storage= 909,157 cf Plug-Flow detention time= 2,703.3 min calculated for 63.877 af (98% of inflow) Center-of-Mass det. time= 2,560.4 min ( 10,269.5 - 7,709.0 ) Volume Invert Avail.Storage Storage Description #1 869.50' 2,891,990 cf Custom Stage Data (Prismatic) Listed below (Recalc) Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 869.50 214,970 0 0 870.00 433,070 162,010 162,010 871.00 489,600 461,335 623,345 872.00 532,650 511,125 1,134,470 875.00 639,030 1,757,520 2,891,990 Device Routing Invert Outlet Devices #1 Primary 869.00'18.0" Round Culvert L= 276.0' RCP, square edge headwall, Ke= 0.500 Inlet / Outlet Invert= 869.00' / 866.93' S= 0.0075 '/' Cc= 0.900 n= 0.013 Concrete pipe, straight & clean, Flow Area= 1.77 sf #2 Device 1 869.50'12.0" Vert. Orifice/Grate C= 0.600 Limited to weir flow at low heads #3 Device 2 869.36'18.0" Round Culvert L= 172.0' RCP, end-section conforming to fill, Ke= 0.500 Inlet / Outlet Invert= 868.50' / 869.36' S= -0.0050 '/' Cc= 0.900 n= 0.013 Concrete pipe, straight & clean, Flow Area= 1.77 sf Primary OutFlow Max=4.74 cfs @ 139.40 hrs HW=871.57' (Free Discharge) 1=Culvert (Passes 4.74 cfs of 9.82 cfs potential flow) 2=Orifice/Grate (Orifice Controls 4.74 cfs @ 6.03 fps) 3=Culvert (Passes 4.74 cfs of 8.24 cfs potential flow) MN-Snowmelt_10d_100yr 10 day snowmelt Rainfall=7.20", AMC=4Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 254HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Pond 72P: South MNDOT M9 Wetland Inflow Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 Inflow Area=112.205 ac Peak Elev=871.57' Storage=909,157 cf 17.49 cfs 4.74 cfs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 255HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Time span=0.00-360.00 hrs, dt=0.01 hrs, 36001 points Runoff by SCS TR-20 method, UH=SCS, Weighted-CN Reach routing by Dyn-Stor-Ind method - Pond routing by Dyn-Stor-Ind method Runoff Area=21,220 sf 0.00% Impervious Runoff Depth=2.27"Subcatchment 13.2S: Front Yards - South Tc=5.0 min CN=80 Runoff=2.13 cfs 0.092 af Runoff Area=5,069 sf 76.64% Impervious Runoff Depth=3.59"Subcatchment 16oS: East Offsite Tc=5.0 min CN=94 Runoff=0.76 cfs 0.035 af Runoff Area=63,545 sf 52.82% Impervious Runoff Depth=3.18"Subcatchment 40.4S: So. Villas Private Flow Length=845' Tc=13.0 min CN=90 Runoff=6.06 cfs 0.386 af Runoff Area=157,310 sf 5.27% Impervious Runoff Depth=2.35"Subcatchment 41.3S: South-West Flow Length=285' Tc=8.9 min CN=81 Runoff=13.41 cfs 0.707 af Runoff Area=21,960 sf 0.00% Impervious Runoff Depth=2.27"Subcatchment 42.1S: South Fringe Tc=5.0 min CN=80 Runoff=2.20 cfs 0.095 af Runoff Area=8,870 sf 0.00% Impervious Runoff Depth=2.10"Subcatchment 42.2S: Southeast Fringe Tc=5.0 min CN=78 Runoff=0.83 cfs 0.036 af Runoff Area=140,400 sf 0.00% Impervious Runoff Depth=0.64"Subcatchment 43.1S: East Woods Flow Length=530' Tc=15.2 min CN=55 Runoff=1.73 cfs 0.172 af Runoff Area=76,080 sf 0.00% Impervious Runoff Depth=0.64"Subcatchment 43.2S: Northeast Woods Flow Length=623' Tc=19.5 min CN=55 Runoff=0.84 cfs 0.093 af Runoff Area=446,125 sf 0.00% Impervious Runoff Depth=0.64"Subcatchment 44S: North Woods Tc=20.0 min CN=55 Runoff=4.89 cfs 0.547 af Runoff Area=63,170 sf 0.00% Impervious Runoff Depth=2.27"Subcatchment 46S: Direct to Tri. Basin Flow Length=755' Tc=11.5 min CN=80 Runoff=4.63 cfs 0.274 af Runoff Area=57,455 sf 33.07% Impervious Runoff Depth=2.79"Subcatchment 46uS: Rear Yards of South Flow Length=755' Tc=11.5 min CN=86 Runoff=5.18 cfs 0.307 af Runoff Area=103,380 sf 49.41% Impervious Runoff Depth=3.08"Subcatchment 47S: Bluff Creek Pkwy - Tc=10.0 min CN=89 Runoff=10.82 cfs 0.609 af Runoff Area=168,700 sf 56.27% Impervious Runoff Depth=3.38"Subcatchment 48S: Bluff Creek Pkwy - Tc=10.0 min CN=92 Runoff=19.00 cfs 1.090 af Runoff Area=292,770 sf 0.00% Impervious Runoff Depth=2.27"Subcatchment 52S: South - Center Flow Length=660' Slope=0.0100 '/' Tc=27.0 min CN=80 Runoff=13.93 cfs 1.270 af Runoff Area=266,110 sf 0.00% Impervious Runoff Depth=2.27"Subcatchment 54S: South - East Flow Length=418' Tc=27.7 min CN=80 Runoff=12.49 cfs 1.154 af Runoff Area=167,215 sf 0.00% Impervious Runoff Depth=2.27"Subcatchment 55S: Direct to Bluff Creek - Tc=5.0 min CN=80 Runoff=16.79 cfs 0.725 af MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 256HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Runoff Area=2.080 ac 0.00% Impervious Runoff Depth=2.61"Subcatchment 71-1S: Interlacn Subcatch 1 Tc=7.0 min CN=84 Runoff=9.39 cfs 0.452 af Runoff Area=1.160 ac 100.00% Impervious Runoff Depth=4.27"Subcatchment 71-2S: Interlacn Subcatch 2 Tc=7.0 min CN=100 Runoff=7.24 cfs 0.413 af Runoff Area=0.810 ac 0.00% Impervious Runoff Depth=3.59"Subcatchment 72S: 6_Temp Tc=9.0 min CN=94 Runoff=4.32 cfs 0.242 af Runoff Area=2.360 ac 100.00% Impervious Runoff Depth=4.03"Subcatchment 73S: N68 Tc=7.0 min CN=98 Runoff=14.62 cfs 0.793 af Runoff Area=1.020 ac 0.00% Impervious Runoff Depth=3.18"Subcatchment 74S: 5_Temp Tc=9.0 min CN=90 Runoff=4.98 cfs 0.270 af Runoff Area=3.010 ac 100.00% Impervious Runoff Depth=4.03"Subcatchment 75S: 3225 Tc=7.0 min CN=98 Runoff=18.64 cfs 1.012 af Runoff Area=8.310 ac 0.00% Impervious Runoff Depth=2.27"Subcatchment 76S: 3236 Tc=14.0 min CN=80 Runoff=24.12 cfs 1.570 af Runoff Area=0.950 ac 0.00% Impervious Runoff Depth=2.52"Subcatchment 77S: 3238 Tc=7.0 min CN=83 Runoff=4.15 cfs 0.200 af Runoff Area=0.630 ac 0.00% Impervious Runoff Depth=3.28"Subcatchment 78S: 3243 Tc=7.0 min CN=91 Runoff=3.47 cfs 0.172 af Runoff Area=2.050 ac 100.00% Impervious Runoff Depth=4.03"Subcatchment 79S: 3245 Tc=7.0 min CN=98 Runoff=12.70 cfs 0.689 af Runoff Area=0.350 ac 0.00% Impervious Runoff Depth=3.18"Subcatchment 80S: 3250 Tc=7.0 min CN=90 Runoff=1.88 cfs 0.093 af Runoff Area=5.950 ac 0.00% Impervious Runoff Depth=1.95"Subcatchment 81S: 3343 Tc=19.0 min CN=76 Runoff=12.62 cfs 0.966 af Runoff Area=1.480 ac 0.00% Impervious Runoff Depth=2.10"Subcatchment 82S: 3345 Tc=7.0 min CN=78 Runoff=5.38 cfs 0.260 af Runoff Area=0.700 ac 0.00% Impervious Runoff Depth=2.89"Subcatchment 83S: 3348 Tc=7.0 min CN=87 Runoff=3.47 cfs 0.168 af Runoff Area=2.100 ac 0.00% Impervious Runoff Depth=2.18"Subcatchment 84S: SE12 Tc=11.0 min CN=79 Runoff=6.58 cfs 0.382 af Runoff Area=4.530 ac 0.00% Impervious Runoff Depth=1.45"Subcatchment 85S: 1S Tc=15.0 min CN=69 Runoff=7.68 cfs 0.546 af Runoff Area=5.800 ac 0.00% Impervious Runoff Depth=1.45"Subcatchment 86S: 2S Tc=25.0 min CN=69 Runoff=7.59 cfs 0.699 af MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 257HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Runoff Area=21.638 ac 0.00% Impervious Runoff Depth=1.95"Subcatchment 87S: M9 Tc=29.0 min CN=76 Runoff=36.74 cfs 3.512 af Inflow=23.74 cfs 7.590 afReach 40R: South Drainage Outflow=23.74 cfs 7.590 af Inflow=3.46 cfs 3.134 afReach 42.2R: Southeast Outflow=3.46 cfs 3.134 af Inflow=21.28 cfs 4.283 afReach 44R: Southwest Outflow=21.28 cfs 4.283 af Avg. Flow Depth=0.32' Max Vel=4.07 fps Inflow=5.18 cfs 0.307 afReach 46uR: South Swale - at East n=0.025 L=34.0' S=0.0294 '/' Capacity=11.72 cfs Outflow=5.17 cfs 0.307 af Inflow=4.07 cfs 0.701 afReach 48R: Developed Area To Wetland 4 Outflow=4.07 cfs 0.701 af Avg. Flow Depth=2.00' Max Vel=7.68 fps Inflow=23.56 cfs 1.306 afReach 72R: N68 24.0" Round Pipe n=0.012 L=63.0' S=0.0075 '/' Capacity=21.17 cfs Outflow=22.07 cfs 1.306 af Peak Elev=878.55' Storage=49,504 cf Inflow=28.42 cfs 2.944 afPond 41.3P: South-West Temp Basin Primary=2.70 cfs 1.652 af Secondary=11.08 cfs 1.291 af Outflow=13.79 cfs 2.943 af Peak Elev=884.44' Storage=594 cf Inflow=8.95 cfs 1.248 afPond 44P: Wetland 4 Outflow=8.94 cfs 1.247 af Peak Elev=889.49' Storage=7,107 cf Inflow=9.80 cfs 0.581 afPond 46P: Triangle Basin Primary=5.54 cfs 0.581 af Secondary=0.00 cfs 0.000 af Outflow=5.54 cfs 0.581 af Peak Elev=911.09' Storage=12,742 cf Inflow=12.33 cfs 0.701 afPond 47P: Bluff Creek - West Basin - 60" Outflow=4.07 cfs 0.701 af Peak Elev=898.46' Storage=53,268 cf Inflow=33.64 cfs 1.850 afPond 48P: Bluff Creek - East Basin Outflow=1.57 cfs 1.850 af Peak Elev=904.14' Storage=2,322 cf Inflow=17.29 cfs 1.656 afPond 52P: South-Center Temp Basin Outflow=17.04 cfs 1.656 af Peak Elev=882.51' Storage=52,004 cf Inflow=13.91 cfs 3.004 afPond 54P: South-East Temp Basin Primary=1.51 cfs 3.003 af Secondary=0.00 cfs 0.000 af Outflow=1.51 cfs 3.003 af Peak Elev=872.91' Storage=161,551 cf Inflow=110.95 cfs 7.300 afPond 71P: Interlachen Outflow=20.63 cfs 7.288 af Peak Elev=870.95' Storage=600,843 cf Inflow=92.87 cfs 20.017 afPond 72P: South MNDOT M9 Wetland Outflow=3.69 cfs 19.699 af Total Runoff Area = 112.205 ac Runoff Volume = 20.032 af Average Runoff Depth = 2.14" 88.04% Pervious = 98.787 ac 11.96% Impervious = 13.418 ac MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 258HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 13.2S: Front Yards - South Rowhomes Runoff = 2.13 cfs @ 12.08 hrs, Volume= 0.092 af, Depth= 2.27" Routed to Pond 47P : Bluff Creek - West Basin - 60" PIPE Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Area (sf) CN Description 21,220 80 >75% Grass cover, Good, HSG D 21,220 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 5.0 Direct Entry, Subcatchment 13.2S: Front Yards - South Rowhomes Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)2 1 0 MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Runoff Area=21,220 sf Runoff Volume=0.092 af Runoff Depth=2.27" Tc=5.0 min CN=80 2.13 cfs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 259HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 16oS: East Offsite Runoff = 0.76 cfs @ 12.07 hrs, Volume= 0.035 af, Depth= 3.59" Routed to Pond 48P : Bluff Creek - East Basin Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Area (sf) CN Description 1,184 80 >75% Grass cover, Good, HSG D 3,885 98 Paved parking, HSG D 5,069 94 Weighted Average 1,184 23.36% Pervious Area 3,885 76.64% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 5.0 Direct Entry, Subcatchment 16oS: East Offsite Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.8 0.75 0.7 0.65 0.6 0.55 0.5 0.45 0.4 0.35 0.3 0.25 0.2 0.15 0.1 0.05 0 MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Runoff Area=5,069 sf Runoff Volume=0.035 af Runoff Depth=3.59" Tc=5.0 min CN=94 0.76 cfs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 260HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 40.4S: So. Villas Private Drive Runoff = 6.06 cfs @ 12.17 hrs, Volume= 0.386 af, Depth= 3.18" Routed to Pond 52P : South-Center Temp Basin Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Area (sf) CN Description 29,980 80 >75% Grass cover, Good, HSG D 33,565 98 Paved parking, HSG D 63,545 90 Weighted Average 29,980 47.18% Pervious Area 33,565 52.82% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 8.3 70 0.0430 0.14 Sheet Flow, Lawn Grass: Dense n= 0.240 P2= 2.87" 4.7 775 0.0180 2.72 Shallow Concentrated Flow, Street Flow Paved Kv= 20.3 fps 13.0 845 Total Subcatchment 40.4S: So. Villas Private Drive Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)6 5 4 3 2 1 0 MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Runoff Area=63,545 sf Runoff Volume=0.386 af Runoff Depth=3.18" Flow Length=845' Tc=13.0 min CN=90 6.06 cfs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 261HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 41.3S: South-West Runoff = 13.41 cfs @ 12.12 hrs, Volume= 0.707 af, Depth= 2.35" Routed to Pond 41.3P : South-West Temp Basin Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Area (sf) CN Description 149,020 80 >75% Grass cover, Good, HSG D * 8,290 100 Water 157,310 81 Weighted Average 149,020 94.73% Pervious Area 8,290 5.27% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 7.5 100 0.0450 0.22 Sheet Flow, Grass: Short n= 0.150 P2= 2.87" 1.0 90 0.0450 1.48 Shallow Concentrated Flow, Short Grass Pasture Kv= 7.0 fps 0.4 95 0.3333 4.04 Shallow Concentrated Flow, Short Grass Pasture Kv= 7.0 fps 8.9 285 Total Subcatchment 41.3S: South-West Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Runoff Area=157,310 sf Runoff Volume=0.707 af Runoff Depth=2.35" Flow Length=285' Tc=8.9 min CN=81 13.41 cfs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 262HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 42.1S: South Fringe Runoff = 2.20 cfs @ 12.08 hrs, Volume= 0.095 af, Depth= 2.27" Routed to Reach 42.2R : Southeast Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Area (sf) CN Description 21,960 80 >75% Grass cover, Good, HSG D 21,960 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 5.0 Direct Entry, Subcatchment 42.1S: South Fringe Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)2 1 0 MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Runoff Area=21,960 sf Runoff Volume=0.095 af Runoff Depth=2.27" Tc=5.0 min CN=80 2.20 cfs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 263HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 42.2S: Southeast Fringe Runoff = 0.83 cfs @ 12.08 hrs, Volume= 0.036 af, Depth= 2.10" Routed to Reach 42.2R : Southeast Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Area (sf) CN Description 8,870 78 Meadow, non-grazed, HSG D 8,870 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 5.0 Direct Entry, Subcatchment 42.2S: Southeast Fringe Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.9 0.85 0.8 0.75 0.7 0.65 0.6 0.55 0.5 0.45 0.4 0.35 0.3 0.25 0.2 0.15 0.1 0.05 0 MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Runoff Area=8,870 sf Runoff Volume=0.036 af Runoff Depth=2.10" Tc=5.0 min CN=78 0.83 cfs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 264HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 43.1S: East Woods Runoff = 1.73 cfs @ 12.27 hrs, Volume= 0.172 af, Depth= 0.64" Routed to Reach 40R : South Drainage Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Area (sf) CN Description 140,400 55 Woods, Good, HSG B 140,400 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 11.1 75 0.0670 0.11 Sheet Flow, Woods: Light underbrush n= 0.400 P2= 2.87" 4.1 455 0.1380 1.86 Shallow Concentrated Flow, Woodland Kv= 5.0 fps 15.2 530 Total Subcatchment 43.1S: East Woods Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)1 0 MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Runoff Area=140,400 sf Runoff Volume=0.172 af Runoff Depth=0.64" Flow Length=530' Tc=15.2 min CN=55 1.73 cfs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 265HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 43.2S: Northeast Woods Runoff = 0.84 cfs @ 12.35 hrs, Volume= 0.093 af, Depth= 0.64" Routed to Reach 44R : Southwest Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Area (sf) CN Description 76,080 55 Woods, Good, HSG B 76,080 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 14.2 100 0.0650 0.12 Sheet Flow, Woods: Light underbrush n= 0.400 P2= 2.87" 5.3 523 0.1080 1.64 Shallow Concentrated Flow, Woodland Kv= 5.0 fps 19.5 623 Total Subcatchment 43.2S: Northeast Woods Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.9 0.85 0.8 0.75 0.7 0.65 0.6 0.55 0.5 0.45 0.4 0.35 0.3 0.25 0.2 0.15 0.1 0.05 0 MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Runoff Area=76,080 sf Runoff Volume=0.093 af Runoff Depth=0.64" Flow Length=623' Tc=19.5 min CN=55 0.84 cfs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 266HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 44S: North Woods Runoff = 4.89 cfs @ 12.36 hrs, Volume= 0.547 af, Depth= 0.64" Routed to Pond 44P : Wetland 4 Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Area (sf) CN Description 446,125 55 Woods, Good, HSG B 446,125 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 20.0 Direct Entry, Subcatchment 44S: North Woods Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)5 4 3 2 1 0 MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Runoff Area=446,125 sf Runoff Volume=0.547 af Runoff Depth=0.64" Tc=20.0 min CN=55 4.89 cfs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 267HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 46S: Direct to Tri. Basin Runoff = 4.63 cfs @ 12.16 hrs, Volume= 0.274 af, Depth= 2.27" Routed to Pond 46P : Triangle Basin Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Area (sf) CN Description 63,170 80 >75% Grass cover, Good, HSG D 63,170 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 3.4 40 0.0500 0.19 Sheet Flow, Grass: Short n= 0.150 P2= 2.87" 8.1 715 0.0440 1.47 Shallow Concentrated Flow, Short Grass Pasture Kv= 7.0 fps 11.5 755 Total Subcatchment 46S: Direct to Tri. Basin Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)5 4 3 2 1 0 MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Runoff Area=63,170 sf Runoff Volume=0.274 af Runoff Depth=2.27" Flow Length=755' Tc=11.5 min CN=80 4.63 cfs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 268HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 46uS: Rear Yards of South Townhomes Runoff = 5.18 cfs @ 12.15 hrs, Volume= 0.307 af, Depth= 2.79" Routed to Reach 46uR : South Swale - at East Property Line of THs Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Area (sf) CN Description 38,455 80 >75% Grass cover, Good, HSG D 19,000 98 Unconnected roofs, HSG D 57,455 86 Weighted Average 38,455 66.93% Pervious Area 19,000 33.07% Impervious Area 19,000 100.00% Unconnected Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 3.4 40 0.0500 0.19 Sheet Flow, Grass: Short n= 0.150 P2= 2.87" 8.1 715 0.0440 1.47 Shallow Concentrated Flow, Short Grass Pasture Kv= 7.0 fps 11.5 755 Total Subcatchment 46uS: Rear Yards of South Townhomes Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)5 4 3 2 1 0 MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Runoff Area=57,455 sf Runoff Volume=0.307 af Runoff Depth=2.79" Flow Length=755' Tc=11.5 min CN=86 5.18 cfs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 269HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 47S: Bluff Creek Pkwy - West Runoff = 10.82 cfs @ 12.13 hrs, Volume= 0.609 af, Depth= 3.08" Routed to Pond 47P : Bluff Creek - West Basin - 60" PIPE Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Area (sf) CN Description * 52,305 80 >75% Grass cover, Good, HSG D 51,075 98 Paved roads w/curbs & sewers, HSG D 103,380 89 Weighted Average 52,305 50.59% Pervious Area 51,075 49.41% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 10.0 Direct Entry, Subcatchment 47S: Bluff Creek Pkwy - West Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)12 11 10 9 8 7 6 5 4 3 2 1 0 MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Runoff Area=103,380 sf Runoff Volume=0.609 af Runoff Depth=3.08" Tc=10.0 min CN=89 10.82 cfs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 270HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 48S: Bluff Creek Pkwy - East Runoff = 19.00 cfs @ 12.13 hrs, Volume= 1.090 af, Depth= 3.38" Routed to Pond 48P : Bluff Creek - East Basin Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Area (sf) CN Description * 73,780 84 >75% Grass cover, Good, HSG D 94,920 98 Paved roads w/curbs & sewers, HSG D 168,700 92 Weighted Average 73,780 43.73% Pervious Area 94,920 56.27% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 10.0 Direct Entry, Subcatchment 48S: Bluff Creek Pkwy - East Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Runoff Area=168,700 sf Runoff Volume=1.090 af Runoff Depth=3.38" Tc=10.0 min CN=92 19.00 cfs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 271HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 52S: South - Center Runoff = 13.93 cfs @ 12.38 hrs, Volume= 1.270 af, Depth= 2.27" Routed to Pond 52P : South-Center Temp Basin Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Area (sf) CN Description 292,770 80 >75% Grass cover, Good, HSG D 292,770 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 13.7 100 0.0100 0.12 Sheet Flow, Grass: Short n= 0.150 P2= 2.87" 13.3 560 0.0100 0.70 Shallow Concentrated Flow, Short Grass Pasture Kv= 7.0 fps 27.0 660 Total Subcatchment 52S: South - Center Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Runoff Area=292,770 sf Runoff Volume=1.270 af Runoff Depth=2.27" Flow Length=660' Slope=0.0100 '/' Tc=27.0 min CN=80 13.93 cfs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 272HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 54S: South - East Runoff = 12.49 cfs @ 12.38 hrs, Volume= 1.154 af, Depth= 2.27" Routed to Pond 54P : South-East Temp Basin Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Area (sf) CN Description 266,110 80 >75% Grass cover, Good, HSG D 266,110 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 14.3 168 0.0250 0.20 Sheet Flow, Grass: Short n= 0.150 P2= 2.87" 8.4 250 0.0050 0.49 Shallow Concentrated Flow, Short Grass Pasture Kv= 7.0 fps 5.0 Direct Entry, Pipe flow 27.7 418 Total Subcatchment 54S: South - East Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)13 12 11 10 9 8 7 6 5 4 3 2 1 0 MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Runoff Area=266,110 sf Runoff Volume=1.154 af Runoff Depth=2.27" Flow Length=418' Tc=27.7 min CN=80 12.49 cfs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 273HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 55S: Direct to Bluff Creek - East Basin Runoff = 16.79 cfs @ 12.08 hrs, Volume= 0.725 af, Depth= 2.27" Routed to Pond 48P : Bluff Creek - East Basin Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Area (sf) CN Description 167,215 80 >75% Grass cover, Good, HSG D 167,215 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 5.0 Direct Entry, Subcatchment 55S: Direct to Bluff Creek - East Basin Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Runoff Area=167,215 sf Runoff Volume=0.725 af Runoff Depth=2.27" Tc=5.0 min CN=80 16.79 cfs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 274HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 71-1S: Interlacn Subcatch 1 Runoff = 9.39 cfs @ 12.10 hrs, Volume= 0.452 af, Depth= 2.61" Routed to Pond 71P : Interlachen Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Area (ac) CN Description * 2.080 84 Weoghted 2.080 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 7.0 Direct Entry, Subcatchment 71-1S: Interlacn Subcatch 1 Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)10 9 8 7 6 5 4 3 2 1 0 MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Runoff Area=2.080 ac Runoff Volume=0.452 af Runoff Depth=2.61" Tc=7.0 min CN=84 9.39 cfs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 275HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 71-2S: Interlacn Subcatch 2 Runoff = 7.24 cfs @ 12.09 hrs, Volume= 0.413 af, Depth= 4.27" Routed to Pond 71P : Interlachen Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Area (ac) CN Description * 1.160 100 1.160 100.00% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 7.0 Direct Entry, Subcatchment 71-2S: Interlacn Subcatch 2 Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)8 7 6 5 4 3 2 1 0 MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Runoff Area=1.160 ac Runoff Volume=0.413 af Runoff Depth=4.27" Tc=7.0 min CN=100 7.24 cfs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 276HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 72S: 6_Temp Runoff = 4.32 cfs @ 12.12 hrs, Volume= 0.242 af, Depth= 3.59" Routed to Reach 72R : N68 Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Area (ac) CN Description * 0.810 94 Weighted 0.810 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 9.0 Direct Entry, Subcatchment 72S: 6_Temp Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)4 3 2 1 0 MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Runoff Area=0.810 ac Runoff Volume=0.242 af Runoff Depth=3.59" Tc=9.0 min CN=94 4.32 cfs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 277HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 73S: N68 Runoff = 14.62 cfs @ 12.09 hrs, Volume= 0.793 af, Depth= 4.03" Routed to Reach 72R : N68 Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Area (ac) CN Description * 2.360 98 Weighted 2.360 100.00% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 7.0 Direct Entry, Subcatchment 73S: N68 Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Runoff Area=2.360 ac Runoff Volume=0.793 af Runoff Depth=4.03" Tc=7.0 min CN=98 14.62 cfs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 278HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 74S: 5_Temp Runoff = 4.98 cfs @ 12.12 hrs, Volume= 0.270 af, Depth= 3.18" Routed to Reach 72R : N68 Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Area (ac) CN Description * 1.020 90 1.020 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 9.0 Direct Entry, Subcatchment 74S: 5_Temp Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)5 4 3 2 1 0 MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Runoff Area=1.020 ac Runoff Volume=0.270 af Runoff Depth=3.18" Tc=9.0 min CN=90 4.98 cfs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 279HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 75S: 3225 Runoff = 18.64 cfs @ 12.09 hrs, Volume= 1.012 af, Depth= 4.03" Routed to Pond 71P : Interlachen Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Area (ac) CN Description * 3.010 98 Weighted 3.010 100.00% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 7.0 Direct Entry, Subcatchment 75S: 3225 Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Runoff Area=3.010 ac Runoff Volume=1.012 af Runoff Depth=4.03" Tc=7.0 min CN=98 18.64 cfs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 280HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 76S: 3236 Runoff = 24.12 cfs @ 12.19 hrs, Volume= 1.570 af, Depth= 2.27" Routed to Pond 71P : Interlachen Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Area (ac) CN Description * 8.310 80 Weighted 8.310 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 14.0 Direct Entry, Subcatchment 76S: 3236 Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)26 24 22 20 18 16 14 12 10 8 6 4 2 0 MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Runoff Area=8.310 ac Runoff Volume=1.570 af Runoff Depth=2.27" Tc=14.0 min CN=80 24.12 cfs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 281HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 77S: 3238 Runoff = 4.15 cfs @ 12.10 hrs, Volume= 0.200 af, Depth= 2.52" Routed to Pond 71P : Interlachen Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Area (ac) CN Description * 0.950 83 Weighted 0.950 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 7.0 Direct Entry, Subcatchment 77S: 3238 Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)4 3 2 1 0 MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Runoff Area=0.950 ac Runoff Volume=0.200 af Runoff Depth=2.52" Tc=7.0 min CN=83 4.15 cfs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 282HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 78S: 3243 Runoff = 3.47 cfs @ 12.10 hrs, Volume= 0.172 af, Depth= 3.28" Routed to Pond 71P : Interlachen Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Area (ac) CN Description * 0.630 91 Weighted 0.630 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 7.0 Direct Entry, Subcatchment 78S: 3243 Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)3 2 1 0 MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Runoff Area=0.630 ac Runoff Volume=0.172 af Runoff Depth=3.28" Tc=7.0 min CN=91 3.47 cfs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 283HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 79S: 3245 Runoff = 12.70 cfs @ 12.09 hrs, Volume= 0.689 af, Depth= 4.03" Routed to Pond 71P : Interlachen Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Area (ac) CN Description * 2.050 98 Weighted 2.050 100.00% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 7.0 Direct Entry, Subcatchment 79S: 3245 Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Runoff Area=2.050 ac Runoff Volume=0.689 af Runoff Depth=4.03" Tc=7.0 min CN=98 12.70 cfs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 284HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 80S: 3250 Runoff = 1.88 cfs @ 12.10 hrs, Volume= 0.093 af, Depth= 3.18" Routed to Pond 71P : Interlachen Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Area (ac) CN Description * 0.350 90 Weighted 0.350 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 7.0 Direct Entry, Subcatchment 80S: 3250 Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)2 1 0 MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Runoff Area=0.350 ac Runoff Volume=0.093 af Runoff Depth=3.18" Tc=7.0 min CN=90 1.88 cfs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 285HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 81S: 3343 Runoff = 12.62 cfs @ 12.27 hrs, Volume= 0.966 af, Depth= 1.95" Routed to Pond 71P : Interlachen Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Area (ac) CN Description * 5.950 76 Weighted 5.950 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 19.0 Direct Entry, Subcatchment 81S: 3343 Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Runoff Area=5.950 ac Runoff Volume=0.966 af Runoff Depth=1.95" Tc=19.0 min CN=76 12.62 cfs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 286HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 82S: 3345 Runoff = 5.38 cfs @ 12.10 hrs, Volume= 0.260 af, Depth= 2.10" Routed to Pond 71P : Interlachen Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Area (ac) CN Description * 1.480 78 Weighted 1.480 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 7.0 Direct Entry, Subcatchment 82S: 3345 Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)6 5 4 3 2 1 0 MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Runoff Area=1.480 ac Runoff Volume=0.260 af Runoff Depth=2.10" Tc=7.0 min CN=78 5.38 cfs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 287HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 83S: 3348 Runoff = 3.47 cfs @ 12.10 hrs, Volume= 0.168 af, Depth= 2.89" Routed to Pond 71P : Interlachen Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Area (ac) CN Description * 0.700 87 Weighted 0.700 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 7.0 Direct Entry, Subcatchment 83S: 3348 Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)3 2 1 0 MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Runoff Area=0.700 ac Runoff Volume=0.168 af Runoff Depth=2.89" Tc=7.0 min CN=87 3.47 cfs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 288HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 84S: SE12 Runoff = 6.58 cfs @ 12.15 hrs, Volume= 0.382 af, Depth= 2.18" Routed to Pond 72P : South MNDOT M9 Wetland Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Area (ac) CN Description * 2.100 79 Weighted 2.100 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 11.0 Direct Entry, Subcatchment 84S: SE12 Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)7 6 5 4 3 2 1 0 MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Runoff Area=2.100 ac Runoff Volume=0.382 af Runoff Depth=2.18" Tc=11.0 min CN=79 6.58 cfs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 289HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 85S: 1S Runoff = 7.68 cfs @ 12.22 hrs, Volume= 0.546 af, Depth= 1.45" Routed to Pond 72P : South MNDOT M9 Wetland Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Area (ac) CN Description * 4.530 69 Weighted 4.530 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 15.0 Direct Entry, Subcatchment 85S: 1S Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)8 7 6 5 4 3 2 1 0 MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Runoff Area=4.530 ac Runoff Volume=0.546 af Runoff Depth=1.45" Tc=15.0 min CN=69 7.68 cfs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 290HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 86S: 2S Runoff = 7.59 cfs @ 12.36 hrs, Volume= 0.699 af, Depth= 1.45" Routed to Pond 72P : South MNDOT M9 Wetland Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Area (ac) CN Description * 5.800 69 Weighted 5.800 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 25.0 Direct Entry, Subcatchment 86S: 2S Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)8 7 6 5 4 3 2 1 0 MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Runoff Area=5.800 ac Runoff Volume=0.699 af Runoff Depth=1.45" Tc=25.0 min CN=69 7.59 cfs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 291HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 87S: M9 Runoff = 36.74 cfs @ 12.41 hrs, Volume= 3.512 af, Depth= 1.95" Routed to Pond 72P : South MNDOT M9 Wetland Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Area (ac) CN Description * 21.638 76 Weighted 21.638 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 29.0 Direct Entry, Subcatchment 87S: M9 Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)40 38 36 34 32 30 28 26 24 22 20 18 16 14 12 10 8 6 4 2 0 MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Runoff Area=21.638 ac Runoff Volume=3.512 af Runoff Depth=1.95" Tc=29.0 min CN=76 36.74 cfs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 292HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Reach 40R: South Drainage [40] Hint: Not Described (Outflow=Inflow) Inflow Area = 47.277 ac, 10.23% Impervious, Inflow Depth = 1.93" for 10y 24hr event Inflow = 23.74 cfs @ 12.57 hrs, Volume= 7.590 af Outflow = 23.74 cfs @ 12.57 hrs, Volume= 7.590 af, Atten= 0%, Lag= 0.0 min Routed to Pond 72P : South MNDOT M9 Wetland Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Reach 40R: South Drainage Inflow Outflow Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)26 24 22 20 18 16 14 12 10 8 6 4 2 0 Inflow Area=47.277 ac 23.74 cfs 23.74 cfs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 293HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Reach 42.2R: Southeast [40] Hint: Not Described (Outflow=Inflow) Inflow Area = 14.645 ac, 15.49% Impervious, Inflow Depth = 2.57" for 10y 24hr event Inflow = 3.46 cfs @ 12.08 hrs, Volume= 3.134 af Outflow = 3.46 cfs @ 12.08 hrs, Volume= 3.134 af, Atten= 0%, Lag= 0.0 min Routed to Reach 40R : South Drainage Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Reach 42.2R: Southeast Inflow Outflow Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)3 2 1 0 Inflow Area=14.645 ac 3.46 cfs 3.46 cfs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 294HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Reach 44R: Southwest [40] Hint: Not Described (Outflow=Inflow) Inflow Area = 29.409 ac, 8.74% Impervious, Inflow Depth = 1.75" for 10y 24hr event Inflow = 21.28 cfs @ 12.61 hrs, Volume= 4.283 af Outflow = 21.28 cfs @ 12.61 hrs, Volume= 4.283 af, Atten= 0%, Lag= 0.0 min Routed to Reach 40R : South Drainage Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Reach 44R: Southwest Inflow Outflow Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 Inflow Area=29.409 ac 21.28 cfs 21.28 cfs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 295HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Reach 46uR: South Swale - at East Property Line of THs Inflow Area = 1.319 ac, 33.07% Impervious, Inflow Depth = 2.79" for 10y 24hr event Inflow = 5.18 cfs @ 12.15 hrs, Volume= 0.307 af Outflow = 5.17 cfs @ 12.16 hrs, Volume= 0.307 af, Atten= 0%, Lag= 0.1 min Routed to Pond 46P : Triangle Basin Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Max. Velocity= 4.07 fps, Min. Travel Time= 0.1 min Avg. Velocity = 1.01 fps, Avg. Travel Time= 0.6 min Peak Storage= 43 cf @ 12.16 hrs Average Depth at Peak Storage= 0.32' , Surface Width= 4.92' Bank-Full Depth= 0.50' Flow Area= 2.3 sf, Capacity= 11.72 cfs 3.00' x 0.50' deep channel, n= 0.025 Short grass Side Slope Z-value= 3.0 '/' Top Width= 6.00' Length= 34.0' Slope= 0.0294 '/' Inlet Invert= 894.00', Outlet Invert= 893.00' ‡ Reach 46uR: South Swale - at East Property Line of THs Inflow Outflow Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)5 4 3 2 1 0 Inflow Area=1.319 ac Avg. Flow Depth=0.32' Max Vel=4.07 fps n=0.025 L=34.0' S=0.0294 '/' Capacity=11.72 cfs 5.18 cfs 5.17 cfs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 296HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Reach 48R: Developed Area To Wetland 4 [40] Hint: Not Described (Outflow=Inflow) Inflow Area = 2.860 ac, 40.99% Impervious, Inflow Depth = 2.94" for 10y 24hr event Inflow = 4.07 cfs @ 12.39 hrs, Volume= 0.701 af Outflow = 4.07 cfs @ 12.39 hrs, Volume= 0.701 af, Atten= 0%, Lag= 0.0 min Routed to Pond 44P : Wetland 4 Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Reach 48R: Developed Area To Wetland 4 Inflow Outflow Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)4 3 2 1 0 Inflow Area=2.860 ac 4.07 cfs 4.07 cfs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 297HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Reach 72R: N68 [52] Hint: Inlet/Outlet conditions not evaluated [55] Hint: Peak inflow is 111% of Manning's capacity [76] Warning: Detained 0.008 af (Pond w/culvert advised) Inflow Area = 4.190 ac, 56.32% Impervious, Inflow Depth = 3.74" for 10y 24hr event Inflow = 23.56 cfs @ 12.10 hrs, Volume= 1.306 af Outflow = 22.07 cfs @ 12.08 hrs, Volume= 1.306 af, Atten= 6%, Lag= 0.0 min Routed to Pond 71P : Interlachen Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Max. Velocity= 7.68 fps, Min. Travel Time= 0.1 min Avg. Velocity = 2.26 fps, Avg. Travel Time= 0.5 min Peak Storage= 198 cf @ 12.09 hrs Average Depth at Peak Storage= 2.00' Bank-Full Depth= 2.00' Flow Area= 3.1 sf, Capacity= 21.17 cfs 24.0" Round Pipe n= 0.012 Length= 63.0' Slope= 0.0075 '/' Inlet Invert= 872.00', Outlet Invert= 871.53' MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 298HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Reach 72R: N68 Inflow Outflow Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)26 24 22 20 18 16 14 12 10 8 6 4 2 0 Inflow Area=4.190 ac Avg. Flow Depth=2.00' Max Vel=7.68 fps 24.0" Round Pipe n=0.012 L=63.0' S=0.0075 '/' Capacity=21.17 cfs 23.56 cfs 22.07 cfs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 299HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Pond 41.3P: South-West Temp Basin Inflow Area = 14.560 ac, 9.59% Impervious, Inflow Depth = 2.43" for 10y 24hr event Inflow = 28.42 cfs @ 12.19 hrs, Volume= 2.944 af Outflow = 13.79 cfs @ 12.73 hrs, Volume= 2.943 af, Atten= 51%, Lag= 32.2 min Primary = 2.70 cfs @ 12.73 hrs, Volume= 1.652 af Routed to Reach 44R : Southwest Secondary = 11.08 cfs @ 12.73 hrs, Volume= 1.291 af Routed to Reach 44R : Southwest Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 878.55' @ 12.73 hrs Surf.Area= 23,866 sf Storage= 49,504 cf Plug-Flow detention time= 127.6 min calculated for 2.943 af (100% of inflow) Center-of-Mass det. time= 126.7 min ( 957.3 - 830.5 ) Volume Invert Avail.Storage Storage Description #1 875.63' 126,081 cf Surface Basin (Prismatic) Listed below (Recalc) Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 875.63 8,290 0 0 876.00 12,755 3,893 3,893 878.00 20,605 33,360 37,253 879.00 26,525 23,565 60,818 880.00 32,000 29,263 90,081 881.00 40,000 36,000 126,081 Device Routing Invert Outlet Devices #1 Primary 875.63'15.0" Round Culvert L= 46.0' RCP, end-section conforming to fill, Ke= 0.500 Inlet / Outlet Invert= 875.63' / 875.00' S= 0.0137 '/' Cc= 0.900 n= 0.011 Concrete pipe, straight & clean, Flow Area= 1.23 sf #2 Secondary 877.00'24.0" Round Culvert L= 46.0' RCP, end-section conforming to fill, Ke= 0.500 Inlet / Outlet Invert= 877.00' / 876.37' S= 0.0137 '/' Cc= 0.900 n= 0.011 Concrete pipe, straight & clean, Flow Area= 3.14 sf #3 Device 1 875.63'8.0" Round Culvert L= 8.0' CPP, square edge headwall, Ke= 0.500 Inlet / Outlet Invert= 875.63' / 875.52' S= 0.0138 '/' Cc= 0.900 n= 0.011 PVC, smooth interior, Flow Area= 0.35 sf Primary OutFlow Max=2.70 cfs @ 12.73 hrs HW=878.55' TW=0.00' (Dynamic Tailwater) 1=Culvert (Passes 2.70 cfs of 8.95 cfs potential flow) 3=Culvert (Inlet Controls 2.70 cfs @ 7.75 fps) Secondary OutFlow Max=11.08 cfs @ 12.73 hrs HW=878.55' TW=0.00' (Dynamic Tailwater) 2=Culvert (Inlet Controls 11.08 cfs @ 4.24 fps) MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 300HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Pond 41.3P: South-West Temp Basin Inflow Outflow Primary Secondary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)30 28 26 24 22 20 18 16 14 12 10 8 6 4 2 0 Inflow Area=14.560 ac Peak Elev=878.55' Storage=49,504 cf 28.42 cfs 13.79 cfs 2.70 cfs 11.08 cfs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 301HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Pond 44P: Wetland 4 Inflow Area = 13.102 ac, 8.95% Impervious, Inflow Depth = 1.14" for 10y 24hr event Inflow = 8.95 cfs @ 12.36 hrs, Volume= 1.248 af Outflow = 8.94 cfs @ 12.37 hrs, Volume= 1.247 af, Atten= 0%, Lag= 0.6 min Primary = 8.94 cfs @ 12.37 hrs, Volume= 1.247 af Routed to Reach 44R : Southwest Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 884.44' @ 12.37 hrs Surf.Area= 1,842 sf Storage= 594 cf Plug-Flow detention time= 4.5 min calculated for 1.247 af (100% of inflow) Center-of-Mass det. time= 3.8 min ( 935.1 - 931.3 ) Volume Invert Avail.Storage Storage Description #1 884.00' 37,633 cf Custom Stage Data (Prismatic) Listed below (Recalc) Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 884.00 870 0 0 884.50 1,980 713 713 885.00 3,500 1,370 2,083 886.00 7,800 5,650 7,733 887.00 14,000 10,900 18,633 888.00 24,000 19,000 37,633 Device Routing Invert Outlet Devices #1 Primary 884.03'Asymmetrical Weir, C= 3.27 Offset (feet) 0.00 51.00 133.60 176.00 217.30 239.00 Elev. (feet) 889.78 886.05 884.03 885.84 889.00 889.78 Primary OutFlow Max=8.94 cfs @ 12.37 hrs HW=884.44' TW=0.00' (Dynamic Tailwater) 1=Asymmetrical Weir (Weir Controls 8.94 cfs @ 0.84 fps) MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 302HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Pond 44P: Wetland 4 Inflow Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)10 9 8 7 6 5 4 3 2 1 0 Inflow Area=13.102 ac Peak Elev=884.44' Storage=594 cf 8.95 cfs 8.94 cfs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 303HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Pond 46P: Triangle Basin Inflow Area = 2.769 ac, 15.75% Impervious, Inflow Depth = 2.52" for 10y 24hr event Inflow = 9.80 cfs @ 12.16 hrs, Volume= 0.581 af Outflow = 5.54 cfs @ 12.32 hrs, Volume= 0.581 af, Atten= 44%, Lag= 9.6 min Primary = 5.54 cfs @ 12.32 hrs, Volume= 0.581 af Routed to Pond 41.3P : South-West Temp Basin Secondary = 0.00 cfs @ 0.00 hrs, Volume= 0.000 af Routed to Pond 41.3P : South-West Temp Basin Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 889.49' @ 12.32 hrs Surf.Area= 4,546 sf Storage= 7,107 cf Plug-Flow detention time= 125.1 min calculated for 0.581 af (100% of inflow) Center-of-Mass det. time= 125.2 min ( 922.0 - 796.9 ) Volume Invert Avail.Storage Storage Description #1 887.17' 14,801 cf Open pond (Prismatic) Listed below (Recalc) Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 887.17 1,586 0 0 890.90 6,350 14,801 14,801 Device Routing Invert Outlet Devices #1 Primary 884.37'18.0" Round Culvert L= 125.0' RCP, sq.cut end projecting, Ke= 0.500 Inlet / Outlet Invert= 884.37' / 875.62' S= 0.0700 '/' Cc= 0.900 n= 0.011 Concrete pipe, straight & clean, Flow Area= 1.77 sf #2 Device 1 888.00'15.0" Vert. Orifice/Grate C= 0.600 Limited to weir flow at low heads #3 Secondary 890.75'20.0' long x 5.0' breadth Broad-Crested Rectangular Weir Head (feet) 0.20 0.40 0.60 0.80 1.00 1.20 1.40 1.60 1.80 2.00 2.50 3.00 3.50 4.00 4.50 5.00 5.50 Coef. (English) 2.34 2.50 2.70 2.68 2.68 2.66 2.65 2.65 2.65 2.65 2.67 2.66 2.68 2.70 2.74 2.79 2.88 #4 Device 1 887.17'0.450 in/hr Filtration over Surface area Phase-In= 0.01' Primary OutFlow Max=5.54 cfs @ 12.32 hrs HW=889.49' TW=877.86' (Dynamic Tailwater) 1=Culvert (Passes 5.54 cfs of 17.78 cfs potential flow) 2=Orifice/Grate (Orifice Controls 5.49 cfs @ 4.47 fps) 4=Filtration (Exfiltration Controls 0.05 cfs) Secondary OutFlow Max=0.00 cfs @ 0.00 hrs HW=887.17' TW=875.63' (Dynamic Tailwater) 3=Broad-Crested Rectangular Weir ( Controls 0.00 cfs) MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 304HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Pond 46P: Triangle Basin Inflow Outflow Primary Secondary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)10 9 8 7 6 5 4 3 2 1 0 Inflow Area=2.769 ac Peak Elev=889.49' Storage=7,107 cf 9.80 cfs 5.54 cfs 5.54 cfs 0.00 cfs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 305HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Pond 47P: Bluff Creek - West Basin - 60" PIPE Inflow Area = 2.860 ac, 40.99% Impervious, Inflow Depth = 2.94" for 10y 24hr event Inflow = 12.33 cfs @ 12.12 hrs, Volume= 0.701 af Outflow = 4.07 cfs @ 12.39 hrs, Volume= 0.701 af, Atten= 67%, Lag= 15.7 min Primary = 4.07 cfs @ 12.39 hrs, Volume= 0.701 af Routed to Reach 48R : Developed Area To Wetland 4 Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 911.09' @ 12.39 hrs Surf.Area= 6,385 sf Storage= 12,742 cf Plug-Flow detention time= 196.9 min calculated for 0.701 af (100% of inflow) Center-of-Mass det. time= 196.9 min ( 981.8 - 784.8 ) Volume Invert Avail.Storage Storage Description #1A 908.00' 8,037 cf 56.09'W x 113.17'L x 6.08'H Field A 38,615 cf Overall - 18,524 cf Embedded = 20,091 cf x 40.0% Voids #2A 908.00' 15,598 cf ADS N-12 60" x 35 Inside #1 Inside= 59.5"W x 59.5"H => 19.30 sf x 20.00'L = 386.0 cf Outside= 67.0"W x 67.0"H => 22.92 sf x 20.00'L = 458.4 cf 35 Chambers in 7 Rows 54.09' Header x 19.30 sf x 2 = 2,087.7 cf Inside #3 908.00' 34,645 cf 4.00'D x 919.00'H Vertical Cone/Cylinder x 3 58,280 cf Total Available Storage Storage Group A created with Chamber Wizard Device Routing Invert Outlet Devices #1 Primary 905.20'15.0" Round Culvert L= 312.0' RCP, square edge headwall, Ke= 0.500 Inlet / Outlet Invert= 905.20' / 901.89' S= 0.0106 '/' Cc= 0.900 n= 0.013 Concrete pipe, straight & clean, Flow Area= 1.23 sf #2 Device 1 905.50'14.0" Round Culvert L= 20.0' CPP, square edge headwall, Ke= 0.500 Inlet / Outlet Invert= 905.50' / 905.20' S= 0.0150 '/' Cc= 0.900 n= 0.011 PVC, smooth interior, Flow Area= 1.07 sf #3 Device 2 909.50'12.0" Vert. Orifice - Overflow C= 0.600 Limited to weir flow at low heads #4 Device 2 906.00'8.0" Vert. Orifice - Underdrain C= 0.600 Limited to weir flow at low heads #5 Device 4 908.00'0.800 in/hr Filtration over Horizontal area Phase-In= 0.01' Primary OutFlow Max=4.07 cfs @ 12.39 hrs HW=911.09' TW=0.00' (Dynamic Tailwater) 1=Culvert (Passes 4.07 cfs of 9.37 cfs potential flow) 2=Culvert (Passes 4.07 cfs of 11.52 cfs potential flow) 3=Orifice - Overflow (Orifice Controls 3.95 cfs @ 5.03 fps) 4=Orifice - Underdrain (Passes 0.12 cfs of 3.67 cfs potential flow) 5=Filtration (Exfiltration Controls 0.12 cfs) MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 306HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Pond 47P: Bluff Creek - West Basin - 60" PIPE - Chamber Wizard Field A Chamber Model = ADS N-12 60" (ADS N-12® Pipe) Inside= 59.5"W x 59.5"H => 19.30 sf x 20.00'L = 386.0 cf Outside= 67.0"W x 67.0"H => 22.92 sf x 20.00'L = 458.4 cf 67.0" Wide + 30.0" Spacing = 97.0" C-C Row Spacing 5 Chambers/Row x 20.00' Long +5.58' Header x 2 = 111.17' Row Length +12.0" End Stone x 2 = 113.17' Base Length 7 Rows x 67.0" Wide + 30.0" Spacing x 6 + 12.0" Side Stone x 2 = 56.09' Base Width 67.0" Chamber Height + 6.0" Stone Cover = 6.08' Field Height 35 Chambers x 386.0 cf + 54.09' Header x 19.30 sf x 2 = 15,597.7 cf Chamber Storage 35 Chambers x 458.4 cf + 54.09' Header x 22.92 sf x 2 = 18,524.0 cf Displacement 38,615.4 cf Field - 18,524.0 cf Chambers = 20,091.4 cf Stone x 40.0% Voids = 8,036.6 cf Stone Storage Chamber Storage + Stone Storage = 23,634.3 cf = 0.543 af Overall Storage Efficiency = 61.2% Overall System Size = 113.17' x 56.09' x 6.08' 35 Chambers 1,430.2 cy Field 744.1 cy Stone MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 307HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Pond 47P: Bluff Creek - West Basin - 60" PIPE Inflow Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)13 12 11 10 9 8 7 6 5 4 3 2 1 0 Inflow Area=2.860 ac Peak Elev=911.09' Storage=12,742 cf 12.33 cfs 4.07 cfs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 308HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Pond 48P: Bluff Creek - East Basin [44] Hint: Outlet device #2 is below defined storage Inflow Area = 7.828 ac, 28.98% Impervious, Inflow Depth = 2.84" for 10y 24hr event Inflow = 33.64 cfs @ 12.09 hrs, Volume= 1.850 af Outflow = 1.57 cfs @ 13.63 hrs, Volume= 1.850 af, Atten= 95%, Lag= 91.9 min Primary = 1.57 cfs @ 13.63 hrs, Volume= 1.850 af Routed to Pond 54P : South-East Temp Basin Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 898.46' @ 13.63 hrs Surf.Area= 44,049 sf Storage= 53,268 cf Plug-Flow detention time= (not calculated: outflow precedes inflow) Center-of-Mass det. time= 437.4 min ( 1,220.9 - 783.5 ) Volume Invert Avail.Storage Storage Description #1 897.20' 340,085 cf Open Pond (Prismatic) Listed below (Recalc) Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 897.20 40,540 0 0 904.00 59,485 340,085 340,085 Device Routing Invert Outlet Devices #1 Primary 895.35'12.0" Round Culvert L= 637.0' RCP, sq.cut end projecting, Ke= 0.500 Inlet / Outlet Invert= 895.35' / 888.98' S= 0.0100 '/' Cc= 0.900 n= 0.017 Concrete sewer w/manholes & inlets, Flow Area= 0.79 sf #2 Device 1 897.00'8.0" Round Temp Outlet Pipe L= 21.0' CPP, mitered to conform to fill, Ke= 0.700 Inlet / Outlet Invert= 897.00' / 895.35' S= 0.0786 '/' Cc= 0.900 n= 0.011 PVC, smooth interior, Flow Area= 0.35 sf Primary OutFlow Max=1.57 cfs @ 13.63 hrs HW=898.46' TW=881.91' (Dynamic Tailwater) 1=Culvert (Passes 1.57 cfs of 3.07 cfs potential flow) 2=Temp Outlet Pipe (Inlet Controls 1.57 cfs @ 4.51 fps) MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 309HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Pond 48P: Bluff Creek - East Basin Inflow Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)36 34 32 30 28 26 24 22 20 18 16 14 12 10 8 6 4 2 0 Inflow Area=7.828 ac Peak Elev=898.46' Storage=53,268 cf 33.64 cfs 1.57 cfs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 310HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Pond 52P: South-Center Temp Basin Inflow Area = 8.180 ac, 9.42% Impervious, Inflow Depth = 2.43" for 10y 24hr event Inflow = 17.29 cfs @ 12.33 hrs, Volume= 1.656 af Outflow = 17.04 cfs @ 12.36 hrs, Volume= 1.656 af, Atten= 1%, Lag= 2.1 min Primary = 17.04 cfs @ 12.36 hrs, Volume= 1.656 af Routed to Pond 41.3P : South-West Temp Basin Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 904.14' @ 12.36 hrs Surf.Area= 5,951 sf Storage= 2,322 cf Plug-Flow detention time= 2.7 min calculated for 1.656 af (100% of inflow) Center-of-Mass det. time= 2.7 min ( 812.0 - 809.4 ) Volume Invert Avail.Storage Storage Description #1 903.14' 49,230 cf Custom Stage Data (Prismatic) Listed below (Recalc) Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 903.14 10 0 0 904.00 3,775 1,628 1,628 905.00 19,015 11,395 13,023 906.00 53,400 36,208 49,230 Device Routing Invert Outlet Devices #1 Primary 903.14'Custom Weir/Orifice, Cv= 2.62 (C= 3.28) Head (feet) 0.00 0.25 0.50 0.75 1.00 2.00 Width (feet) 0.10 4.20 6.25 8.30 12.50 12.50 Primary OutFlow Max=17.04 cfs @ 12.36 hrs HW=904.14' TW=878.03' (Dynamic Tailwater) 1=Custom Weir/Orifice (Weir Controls 17.04 cfs @ 2.71 fps) MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 311HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Pond 52P: South-Center Temp Basin Inflow Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 Inflow Area=8.180 ac Peak Elev=904.14' Storage=2,322 cf 17.29 cfs 17.04 cfs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 312HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Pond 54P: South-East Temp Basin Inflow Area = 13.937 ac, 16.28% Impervious, Inflow Depth = 2.59" for 10y 24hr event Inflow = 13.91 cfs @ 12.40 hrs, Volume= 3.004 af Outflow = 1.51 cfs @ 18.60 hrs, Volume= 3.003 af, Atten= 89%, Lag= 372.4 min Primary = 1.51 cfs @ 18.60 hrs, Volume= 3.003 af Routed to Reach 42.2R : Southeast Secondary = 0.00 cfs @ 0.00 hrs, Volume= 0.000 af Routed to Reach 42.2R : Southeast Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 882.51' @ 18.60 hrs Surf.Area= 19,063 sf Storage= 52,004 cf Plug-Flow detention time= 486.9 min calculated for 3.003 af (100% of inflow) Center-of-Mass det. time= 486.4 min ( 1,552.5 - 1,066.1 ) Volume Invert Avail.Storage Storage Description #1 879.00' 121,861 cf Custom Stage Data (Prismatic) Listed below (Recalc) Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 879.00 11,945 0 0 881.00 14,583 26,528 26,528 883.00 20,500 35,083 61,611 884.00 100,000 60,250 121,861 Device Routing Invert Outlet Devices #1 Primary 874.38'18.0" Round Culvert L= 68.0' RCP, sq.cut end projecting, Ke= 0.500 Inlet / Outlet Invert= 874.38' / 874.05' S= 0.0049 '/' Cc= 0.900 n= 0.013 Concrete pipe, straight & clean, Flow Area= 1.77 sf #2 Device 1 879.00'6.0" Round Culvert L= 29.0' CPP, mitered to conform to fill, Ke= 0.700 Inlet / Outlet Invert= 879.00' / 878.71' S= 0.0100 '/' Cc= 0.900 n= 0.011 PVC, smooth interior, Flow Area= 0.20 sf #3 Secondary 883.85'25.0' long x 50.0' breadth Broad-Crested Rectangular Weir Head (feet) 0.20 0.40 0.60 0.80 1.00 1.20 1.40 1.60 Coef. (English) 2.68 2.70 2.70 2.64 2.63 2.64 2.64 2.63 Primary OutFlow Max=1.51 cfs @ 18.60 hrs HW=882.51' TW=0.00' (Dynamic Tailwater) 1=Culvert (Passes 1.51 cfs of 22.59 cfs potential flow) 2=Culvert (Inlet Controls 1.51 cfs @ 7.68 fps) Secondary OutFlow Max=0.00 cfs @ 0.00 hrs HW=879.00' TW=0.00' (Dynamic Tailwater) 3=Broad-Crested Rectangular Weir ( Controls 0.00 cfs) MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 313HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Pond 54P: South-East Temp Basin Inflow Outflow Primary Secondary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 Inflow Area=13.937 ac Peak Elev=882.51' Storage=52,004 cf 13.91 cfs 1.51 cfs 1.51 cfs 0.00 cfs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 314HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Pond 71P: Interlachen [44] Hint: Outlet device #2 is below defined storage [63] Warning: Exceeded Reach 72R INLET depth by 0.46' @ 12.74 hrs Inflow Area = 30.860 ac, 27.80% Impervious, Inflow Depth = 2.84" for 10y 24hr event Inflow = 110.95 cfs @ 12.11 hrs, Volume= 7.300 af Outflow = 20.63 cfs @ 12.66 hrs, Volume= 7.288 af, Atten= 81%, Lag= 32.9 min Primary = 20.63 cfs @ 12.66 hrs, Volume= 7.288 af Routed to Pond 72P : South MNDOT M9 Wetland Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 872.91' @ 12.66 hrs Surf.Area= 62,156 sf Storage= 161,551 cf Plug-Flow detention time= 524.8 min calculated for 7.288 af (100% of inflow) Center-of-Mass det. time= 523.8 min ( 1,301.4 - 777.6 ) Volume Invert Avail.Storage Storage Description #1 870.00' 381,460 cf Custom Stage Data (Prismatic) Listed below (Recalc) Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 870.00 50,570 0 0 872.00 56,860 107,430 107,430 875.00 74,330 196,785 304,215 876.00 80,160 77,245 381,460 Device Routing Invert Outlet Devices #1 Primary 870.00'24.0" Round Culvert L= 33.0' RCP, square edge headwall, Ke= 0.500 Inlet / Outlet Invert= 870.00' / 869.67' S= 0.0100 '/' Cc= 0.900 n= 0.012, Flow Area= 3.14 sf #2 Device 1 866.61'24.0" Round Culvert L= 21.0' RCP, end-section conforming to fill, Ke= 0.500 Inlet / Outlet Invert= 866.50' / 866.61' S= -0.0052 '/' Cc= 0.900 n= 0.012, Flow Area= 3.14 sf Primary OutFlow Max=20.63 cfs @ 12.66 hrs HW=872.91' TW=870.08' (Dynamic Tailwater) 1=Culvert (Barrel Controls 20.63 cfs @ 6.57 fps) 2=Culvert (Passes 20.63 cfs of 25.46 cfs potential flow) MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 315HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Pond 71P: Interlachen Inflow Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)120 115 110 105 100 95 90 85 80 75 70 65 60 55 50 45 40 35 30 25 20 15 10 5 0 Inflow Area=30.860 ac Peak Elev=872.91' Storage=161,551 cf 110.95 cfs 20.63 cfs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 316HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Pond 72P: South MNDOT M9 Wetland [44] Hint: Outlet device #3 is below defined storage Inflow Area = 112.205 ac, 11.96% Impervious, Inflow Depth = 2.14" for 10y 24hr event Inflow = 92.87 cfs @ 12.41 hrs, Volume= 20.017 af Outflow = 3.69 cfs @ 22.20 hrs, Volume= 19.699 af, Atten= 96%, Lag= 587.8 min Primary = 3.69 cfs @ 22.20 hrs, Volume= 19.699 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 870.95' @ 22.20 hrs Surf.Area= 486,995 sf Storage= 600,843 cf Plug-Flow detention time= 2,675.4 min calculated for 19.698 af (98% of inflow) Center-of-Mass det. time= 2,594.4 min ( 3,728.9 - 1,134.5 ) Volume Invert Avail.Storage Storage Description #1 869.50' 2,891,990 cf Custom Stage Data (Prismatic) Listed below (Recalc) Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 869.50 214,970 0 0 870.00 433,070 162,010 162,010 871.00 489,600 461,335 623,345 872.00 532,650 511,125 1,134,470 875.00 639,030 1,757,520 2,891,990 Device Routing Invert Outlet Devices #1 Primary 869.00'18.0" Round Culvert L= 276.0' RCP, square edge headwall, Ke= 0.500 Inlet / Outlet Invert= 869.00' / 866.93' S= 0.0075 '/' Cc= 0.900 n= 0.013 Concrete pipe, straight & clean, Flow Area= 1.77 sf #2 Device 1 869.50'12.0" Vert. Orifice/Grate C= 0.600 Limited to weir flow at low heads #3 Device 2 869.36'18.0" Round Culvert L= 172.0' RCP, end-section conforming to fill, Ke= 0.500 Inlet / Outlet Invert= 868.50' / 869.36' S= -0.0050 '/' Cc= 0.900 n= 0.013 Concrete pipe, straight & clean, Flow Area= 1.77 sf Primary OutFlow Max=3.69 cfs @ 22.20 hrs HW=870.95' (Free Discharge) 1=Culvert (Passes 3.69 cfs of 9.25 cfs potential flow) 2=Orifice/Grate (Orifice Controls 3.69 cfs @ 4.70 fps) 3=Culvert (Passes 3.69 cfs of 6.43 cfs potential flow) MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 317HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Pond 72P: South MNDOT M9 Wetland Inflow Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)100 95 90 85 80 75 70 65 60 55 50 45 40 35 30 25 20 15 10 5 0 Inflow Area=112.205 ac Peak Elev=870.95' Storage=600,843 cf 92.87 cfs 3.69 cfs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 318HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Time span=0.00-360.00 hrs, dt=0.01 hrs, 36001 points Runoff by SCS TR-20 method, UH=SCS, Weighted-CN Reach routing by Dyn-Stor-Ind method - Pond routing by Dyn-Stor-Ind method Runoff Area=21,220 sf 0.00% Impervious Runoff Depth=5.07"Subcatchment 13.2S: Front Yards - South Tc=5.0 min CN=80 Runoff=4.36 cfs 0.206 af Runoff Area=5,069 sf 76.64% Impervious Runoff Depth=6.70"Subcatchment 16oS: East Offsite Tc=5.0 min CN=94 Runoff=1.26 cfs 0.065 af Runoff Area=63,545 sf 52.82% Impervious Runoff Depth=6.23"Subcatchment 40.4S: So. Villas Private Flow Length=845' Tc=13.0 min CN=90 Runoff=10.71 cfs 0.757 af Runoff Area=157,310 sf 5.27% Impervious Runoff Depth=5.19"Subcatchment 41.3S: South-West Flow Length=285' Tc=8.9 min CN=81 Runoff=27.18 cfs 1.561 af Runoff Area=21,960 sf 0.00% Impervious Runoff Depth=5.07"Subcatchment 42.1S: South Fringe Tc=5.0 min CN=80 Runoff=4.52 cfs 0.213 af Runoff Area=8,870 sf 0.00% Impervious Runoff Depth=4.85"Subcatchment 42.2S: Southeast Fringe Tc=5.0 min CN=78 Runoff=1.75 cfs 0.082 af Runoff Area=140,400 sf 0.00% Impervious Runoff Depth=2.39"Subcatchment 43.1S: East Woods Flow Length=530' Tc=15.2 min CN=55 Runoff=8.28 cfs 0.642 af Runoff Area=76,080 sf 0.00% Impervious Runoff Depth=2.39"Subcatchment 43.2S: Northeast Woods Flow Length=623' Tc=19.5 min CN=55 Runoff=3.98 cfs 0.348 af Runoff Area=446,125 sf 0.00% Impervious Runoff Depth=2.39"Subcatchment 44S: North Woods Tc=20.0 min CN=55 Runoff=23.03 cfs 2.039 af Runoff Area=63,170 sf 0.00% Impervious Runoff Depth=5.07"Subcatchment 46S: Direct to Tri. Basin Flow Length=755' Tc=11.5 min CN=80 Runoff=9.59 cfs 0.613 af Runoff Area=57,455 sf 33.07% Impervious Runoff Depth=5.76"Subcatchment 46uS: Rear Yards of South Flow Length=755' Tc=11.5 min CN=86 Runoff=9.69 cfs 0.633 af Runoff Area=103,380 sf 49.41% Impervious Runoff Depth=6.11"Subcatchment 47S: Bluff Creek Pkwy - Tc=10.0 min CN=89 Runoff=19.33 cfs 1.208 af Runoff Area=168,700 sf 56.27% Impervious Runoff Depth=6.46"Subcatchment 48S: Bluff Creek Pkwy - Tc=10.0 min CN=92 Runoff=32.63 cfs 2.085 af Runoff Area=292,770 sf 0.00% Impervious Runoff Depth=5.07"Subcatchment 52S: South - Center Flow Length=660' Slope=0.0100 '/' Tc=27.0 min CN=80 Runoff=29.26 cfs 2.842 af Runoff Area=266,110 sf 0.00% Impervious Runoff Depth=5.07"Subcatchment 54S: South - East Flow Length=418' Tc=27.7 min CN=80 Runoff=26.28 cfs 2.583 af Runoff Area=167,215 sf 0.00% Impervious Runoff Depth=5.07"Subcatchment 55S: Direct to Bluff Creek - Tc=5.0 min CN=80 Runoff=34.38 cfs 1.623 af MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 319HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Runoff Area=2.080 ac 0.00% Impervious Runoff Depth=5.53"Subcatchment 71-1S: Interlacn Subcatch 1 Tc=7.0 min CN=84 Runoff=18.06 cfs 0.959 af Runoff Area=1.160 ac 100.00% Impervious Runoff Depth=7.41"Subcatchment 71-2S: Interlacn Subcatch 2 Tc=7.0 min CN=100 Runoff=11.67 cfs 0.716 af Runoff Area=0.810 ac 0.00% Impervious Runoff Depth=6.70"Subcatchment 72S: 6_Temp Tc=9.0 min CN=94 Runoff=7.25 cfs 0.452 af Runoff Area=2.360 ac 100.00% Impervious Runoff Depth=7.17"Subcatchment 73S: N68 Tc=7.0 min CN=98 Runoff=23.67 cfs 1.410 af Runoff Area=1.020 ac 0.00% Impervious Runoff Depth=6.23"Subcatchment 74S: 5_Temp Tc=9.0 min CN=90 Runoff=8.78 cfs 0.529 af Runoff Area=3.010 ac 100.00% Impervious Runoff Depth=7.17"Subcatchment 75S: 3225 Tc=7.0 min CN=98 Runoff=30.19 cfs 1.799 af Runoff Area=8.310 ac 0.00% Impervious Runoff Depth=5.07"Subcatchment 76S: 3236 Tc=14.0 min CN=80 Runoff=50.13 cfs 3.514 af Runoff Area=0.950 ac 0.00% Impervious Runoff Depth=5.42"Subcatchment 77S: 3238 Tc=7.0 min CN=83 Runoff=8.11 cfs 0.429 af Runoff Area=0.630 ac 0.00% Impervious Runoff Depth=6.34"Subcatchment 78S: 3243 Tc=7.0 min CN=91 Runoff=6.02 cfs 0.333 af Runoff Area=2.050 ac 100.00% Impervious Runoff Depth=7.17"Subcatchment 79S: 3245 Tc=7.0 min CN=98 Runoff=20.56 cfs 1.225 af Runoff Area=0.350 ac 0.00% Impervious Runoff Depth=6.23"Subcatchment 80S: 3250 Tc=7.0 min CN=90 Runoff=3.31 cfs 0.182 af Runoff Area=5.950 ac 0.00% Impervious Runoff Depth=4.62"Subcatchment 81S: 3343 Tc=19.0 min CN=76 Runoff=28.32 cfs 2.293 af Runoff Area=1.480 ac 0.00% Impervious Runoff Depth=4.85"Subcatchment 82S: 3345 Tc=7.0 min CN=78 Runoff=11.48 cfs 0.598 af Runoff Area=0.700 ac 0.00% Impervious Runoff Depth=5.88"Subcatchment 83S: 3348 Tc=7.0 min CN=87 Runoff=6.36 cfs 0.343 af Runoff Area=2.100 ac 0.00% Impervious Runoff Depth=4.96"Subcatchment 84S: SE12 Tc=11.0 min CN=79 Runoff=13.85 cfs 0.868 af Runoff Area=4.530 ac 0.00% Impervious Runoff Depth=3.85"Subcatchment 85S: 1S Tc=15.0 min CN=69 Runoff=20.10 cfs 1.454 af Runoff Area=5.800 ac 0.00% Impervious Runoff Depth=3.85"Subcatchment 86S: 2S Tc=25.0 min CN=69 Runoff=19.99 cfs 1.862 af MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 320HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Runoff Area=21.638 ac 0.00% Impervious Runoff Depth=4.62"Subcatchment 87S: M9 Tc=29.0 min CN=76 Runoff=83.28 cfs 8.338 af Inflow=66.06 cfs 17.497 afReach 40R: South Drainage Outflow=66.06 cfs 17.497 af Inflow=7.19 cfs 6.650 afReach 42.2R: Southeast Outflow=7.19 cfs 6.650 af Inflow=56.50 cfs 10.205 afReach 44R: Southwest Outflow=56.50 cfs 10.205 af Avg. Flow Depth=0.45' Max Vel=4.92 fps Inflow=9.69 cfs 0.633 afReach 46uR: South Swale - at East n=0.025 L=34.0' S=0.0294 '/' Capacity=11.72 cfs Outflow=9.68 cfs 0.633 af Inflow=8.53 cfs 1.414 afReach 48R: Developed Area To Wetland 4 Outflow=8.53 cfs 1.414 af Avg. Flow Depth=2.00' Max Vel=7.68 fps Inflow=39.13 cfs 2.391 afReach 72R: N68 24.0" Round Pipe n=0.012 L=63.0' S=0.0075 '/' Capacity=21.17 cfs Outflow=21.18 cfs 2.391 af Peak Elev=880.40' Storage=103,615 cf Inflow=55.59 cfs 6.406 afPond 41.3P: South-West Temp Basin Primary=3.54 cfs 2.124 af Secondary=23.45 cfs 4.281 af Outflow=26.99 cfs 6.405 af Peak Elev=884.70' Storage=1,162 cf Inflow=30.63 cfs 3.453 afPond 44P: Wetland 4 Outflow=30.60 cfs 3.452 af Peak Elev=890.80' Storage=14,198 cf Inflow=19.27 cfs 1.246 afPond 46P: Triangle Basin Primary=8.79 cfs 1.242 af Secondary=0.59 cfs 0.004 af Outflow=9.38 cfs 1.246 af Peak Elev=914.95' Storage=23,896 cf Inflow=22.44 cfs 1.414 afPond 47P: Bluff Creek - West Basin - 60" Outflow=8.53 cfs 1.414 af Peak Elev=899.94' Storage=121,365 cf Inflow=62.96 cfs 3.773 afPond 48P: Bluff Creek - East Basin Outflow=2.39 cfs 3.773 af Peak Elev=904.50' Storage=5,444 cf Inflow=35.39 cfs 3.599 afPond 52P: South-Center Temp Basin Outflow=34.59 cfs 3.599 af Peak Elev=883.91' Storage=113,230 cf Inflow=28.36 cfs 6.356 afPond 54P: South-East Temp Basin Primary=1.80 cfs 5.831 af Secondary=1.00 cfs 0.524 af Outflow=2.80 cfs 6.355 af Peak Elev=875.52' Storage=343,415 cf Inflow=190.89 cfs 14.781 afPond 71P: Interlachen Outflow=32.14 cfs 14.766 af Peak Elev=872.48' Storage=1,395,325 cf Inflow=217.76 cfs 44.786 afPond 72P: South MNDOT M9 Wetland Outflow=5.96 cfs 44.381 af Total Runoff Area = 112.205 ac Runoff Volume = 44.804 af Average Runoff Depth = 4.79" 88.04% Pervious = 98.787 ac 11.96% Impervious = 13.418 ac MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 321HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 13.2S: Front Yards - South Rowhomes Runoff = 4.36 cfs @ 12.07 hrs, Volume= 0.206 af, Depth= 5.07" Routed to Pond 47P : Bluff Creek - West Basin - 60" PIPE Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Area (sf) CN Description 21,220 80 >75% Grass cover, Good, HSG D 21,220 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 5.0 Direct Entry, Subcatchment 13.2S: Front Yards - South Rowhomes Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)4 3 2 1 0 MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Runoff Area=21,220 sf Runoff Volume=0.206 af Runoff Depth=5.07" Tc=5.0 min CN=80 4.36 cfs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 322HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 16oS: East Offsite Runoff = 1.26 cfs @ 12.07 hrs, Volume= 0.065 af, Depth= 6.70" Routed to Pond 48P : Bluff Creek - East Basin Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Area (sf) CN Description 1,184 80 >75% Grass cover, Good, HSG D 3,885 98 Paved parking, HSG D 5,069 94 Weighted Average 1,184 23.36% Pervious Area 3,885 76.64% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 5.0 Direct Entry, Subcatchment 16oS: East Offsite Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)1 0 MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Runoff Area=5,069 sf Runoff Volume=0.065 af Runoff Depth=6.70" Tc=5.0 min CN=94 1.26 cfs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 323HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 40.4S: So. Villas Private Drive Runoff = 10.71 cfs @ 12.17 hrs, Volume= 0.757 af, Depth= 6.23" Routed to Pond 52P : South-Center Temp Basin Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Area (sf) CN Description 29,980 80 >75% Grass cover, Good, HSG D 33,565 98 Paved parking, HSG D 63,545 90 Weighted Average 29,980 47.18% Pervious Area 33,565 52.82% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 8.3 70 0.0430 0.14 Sheet Flow, Lawn Grass: Dense n= 0.240 P2= 2.87" 4.7 775 0.0180 2.72 Shallow Concentrated Flow, Street Flow Paved Kv= 20.3 fps 13.0 845 Total Subcatchment 40.4S: So. Villas Private Drive Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)11 10 9 8 7 6 5 4 3 2 1 0 MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Runoff Area=63,545 sf Runoff Volume=0.757 af Runoff Depth=6.23" Flow Length=845' Tc=13.0 min CN=90 10.71 cfs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 324HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 41.3S: South-West Runoff = 27.18 cfs @ 12.12 hrs, Volume= 1.561 af, Depth= 5.19" Routed to Pond 41.3P : South-West Temp Basin Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Area (sf) CN Description 149,020 80 >75% Grass cover, Good, HSG D * 8,290 100 Water 157,310 81 Weighted Average 149,020 94.73% Pervious Area 8,290 5.27% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 7.5 100 0.0450 0.22 Sheet Flow, Grass: Short n= 0.150 P2= 2.87" 1.0 90 0.0450 1.48 Shallow Concentrated Flow, Short Grass Pasture Kv= 7.0 fps 0.4 95 0.3333 4.04 Shallow Concentrated Flow, Short Grass Pasture Kv= 7.0 fps 8.9 285 Total Subcatchment 41.3S: South-West Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)30 28 26 24 22 20 18 16 14 12 10 8 6 4 2 0 MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Runoff Area=157,310 sf Runoff Volume=1.561 af Runoff Depth=5.19" Flow Length=285' Tc=8.9 min CN=81 27.18 cfs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 325HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 42.1S: South Fringe Runoff = 4.52 cfs @ 12.07 hrs, Volume= 0.213 af, Depth= 5.07" Routed to Reach 42.2R : Southeast Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Area (sf) CN Description 21,960 80 >75% Grass cover, Good, HSG D 21,960 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 5.0 Direct Entry, Subcatchment 42.1S: South Fringe Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)5 4 3 2 1 0 MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Runoff Area=21,960 sf Runoff Volume=0.213 af Runoff Depth=5.07" Tc=5.0 min CN=80 4.52 cfs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 326HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 42.2S: Southeast Fringe Runoff = 1.75 cfs @ 12.07 hrs, Volume= 0.082 af, Depth= 4.85" Routed to Reach 42.2R : Southeast Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Area (sf) CN Description 8,870 78 Meadow, non-grazed, HSG D 8,870 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 5.0 Direct Entry, Subcatchment 42.2S: Southeast Fringe Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)1 0 MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Runoff Area=8,870 sf Runoff Volume=0.082 af Runoff Depth=4.85" Tc=5.0 min CN=78 1.75 cfs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 327HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 43.1S: East Woods Runoff = 8.28 cfs @ 12.22 hrs, Volume= 0.642 af, Depth= 2.39" Routed to Reach 40R : South Drainage Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Area (sf) CN Description 140,400 55 Woods, Good, HSG B 140,400 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 11.1 75 0.0670 0.11 Sheet Flow, Woods: Light underbrush n= 0.400 P2= 2.87" 4.1 455 0.1380 1.86 Shallow Concentrated Flow, Woodland Kv= 5.0 fps 15.2 530 Total Subcatchment 43.1S: East Woods Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)9 8 7 6 5 4 3 2 1 0 MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Runoff Area=140,400 sf Runoff Volume=0.642 af Runoff Depth=2.39" Flow Length=530' Tc=15.2 min CN=55 8.28 cfs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 328HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 43.2S: Northeast Woods Runoff = 3.98 cfs @ 12.29 hrs, Volume= 0.348 af, Depth= 2.39" Routed to Reach 44R : Southwest Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Area (sf) CN Description 76,080 55 Woods, Good, HSG B 76,080 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 14.2 100 0.0650 0.12 Sheet Flow, Woods: Light underbrush n= 0.400 P2= 2.87" 5.3 523 0.1080 1.64 Shallow Concentrated Flow, Woodland Kv= 5.0 fps 19.5 623 Total Subcatchment 43.2S: Northeast Woods Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)4 3 2 1 0 MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Runoff Area=76,080 sf Runoff Volume=0.348 af Runoff Depth=2.39" Flow Length=623' Tc=19.5 min CN=55 3.98 cfs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 329HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 44S: North Woods Runoff = 23.03 cfs @ 12.29 hrs, Volume= 2.039 af, Depth= 2.39" Routed to Pond 44P : Wetland 4 Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Area (sf) CN Description 446,125 55 Woods, Good, HSG B 446,125 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 20.0 Direct Entry, Subcatchment 44S: North Woods Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Runoff Area=446,125 sf Runoff Volume=2.039 af Runoff Depth=2.39" Tc=20.0 min CN=55 23.03 cfs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 330HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 46S: Direct to Tri. Basin Runoff = 9.59 cfs @ 12.15 hrs, Volume= 0.613 af, Depth= 5.07" Routed to Pond 46P : Triangle Basin Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Area (sf) CN Description 63,170 80 >75% Grass cover, Good, HSG D 63,170 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 3.4 40 0.0500 0.19 Sheet Flow, Grass: Short n= 0.150 P2= 2.87" 8.1 715 0.0440 1.47 Shallow Concentrated Flow, Short Grass Pasture Kv= 7.0 fps 11.5 755 Total Subcatchment 46S: Direct to Tri. Basin Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)10 9 8 7 6 5 4 3 2 1 0 MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Runoff Area=63,170 sf Runoff Volume=0.613 af Runoff Depth=5.07" Flow Length=755' Tc=11.5 min CN=80 9.59 cfs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 331HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 46uS: Rear Yards of South Townhomes Runoff = 9.69 cfs @ 12.15 hrs, Volume= 0.633 af, Depth= 5.76" Routed to Reach 46uR : South Swale - at East Property Line of THs Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Area (sf) CN Description 38,455 80 >75% Grass cover, Good, HSG D 19,000 98 Unconnected roofs, HSG D 57,455 86 Weighted Average 38,455 66.93% Pervious Area 19,000 33.07% Impervious Area 19,000 100.00% Unconnected Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 3.4 40 0.0500 0.19 Sheet Flow, Grass: Short n= 0.150 P2= 2.87" 8.1 715 0.0440 1.47 Shallow Concentrated Flow, Short Grass Pasture Kv= 7.0 fps 11.5 755 Total Subcatchment 46uS: Rear Yards of South Townhomes Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)10 9 8 7 6 5 4 3 2 1 0 MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Runoff Area=57,455 sf Runoff Volume=0.633 af Runoff Depth=5.76" Flow Length=755' Tc=11.5 min CN=86 9.69 cfs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 332HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 47S: Bluff Creek Pkwy - West Runoff = 19.33 cfs @ 12.13 hrs, Volume= 1.208 af, Depth= 6.11" Routed to Pond 47P : Bluff Creek - West Basin - 60" PIPE Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Area (sf) CN Description * 52,305 80 >75% Grass cover, Good, HSG D 51,075 98 Paved roads w/curbs & sewers, HSG D 103,380 89 Weighted Average 52,305 50.59% Pervious Area 51,075 49.41% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 10.0 Direct Entry, Subcatchment 47S: Bluff Creek Pkwy - West Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Runoff Area=103,380 sf Runoff Volume=1.208 af Runoff Depth=6.11" Tc=10.0 min CN=89 19.33 cfs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 333HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 48S: Bluff Creek Pkwy - East Runoff = 32.63 cfs @ 12.13 hrs, Volume= 2.085 af, Depth= 6.46" Routed to Pond 48P : Bluff Creek - East Basin Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Area (sf) CN Description * 73,780 84 >75% Grass cover, Good, HSG D 94,920 98 Paved roads w/curbs & sewers, HSG D 168,700 92 Weighted Average 73,780 43.73% Pervious Area 94,920 56.27% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 10.0 Direct Entry, Subcatchment 48S: Bluff Creek Pkwy - East Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)36 34 32 30 28 26 24 22 20 18 16 14 12 10 8 6 4 2 0 MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Runoff Area=168,700 sf Runoff Volume=2.085 af Runoff Depth=6.46" Tc=10.0 min CN=92 32.63 cfs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 334HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 52S: South - Center Runoff = 29.26 cfs @ 12.36 hrs, Volume= 2.842 af, Depth= 5.07" Routed to Pond 52P : South-Center Temp Basin Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Area (sf) CN Description 292,770 80 >75% Grass cover, Good, HSG D 292,770 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 13.7 100 0.0100 0.12 Sheet Flow, Grass: Short n= 0.150 P2= 2.87" 13.3 560 0.0100 0.70 Shallow Concentrated Flow, Short Grass Pasture Kv= 7.0 fps 27.0 660 Total Subcatchment 52S: South - Center Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)32 30 28 26 24 22 20 18 16 14 12 10 8 6 4 2 0 MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Runoff Area=292,770 sf Runoff Volume=2.842 af Runoff Depth=5.07" Flow Length=660' Slope=0.0100 '/' Tc=27.0 min CN=80 29.26 cfs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 335HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 54S: South - East Runoff = 26.28 cfs @ 12.37 hrs, Volume= 2.583 af, Depth= 5.07" Routed to Pond 54P : South-East Temp Basin Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Area (sf) CN Description 266,110 80 >75% Grass cover, Good, HSG D 266,110 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 14.3 168 0.0250 0.20 Sheet Flow, Grass: Short n= 0.150 P2= 2.87" 8.4 250 0.0050 0.49 Shallow Concentrated Flow, Short Grass Pasture Kv= 7.0 fps 5.0 Direct Entry, Pipe flow 27.7 418 Total Subcatchment 54S: South - East Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)28 26 24 22 20 18 16 14 12 10 8 6 4 2 0 MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Runoff Area=266,110 sf Runoff Volume=2.583 af Runoff Depth=5.07" Flow Length=418' Tc=27.7 min CN=80 26.28 cfs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 336HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 55S: Direct to Bluff Creek - East Basin Runoff = 34.38 cfs @ 12.07 hrs, Volume= 1.623 af, Depth= 5.07" Routed to Pond 48P : Bluff Creek - East Basin Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Area (sf) CN Description 167,215 80 >75% Grass cover, Good, HSG D 167,215 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 5.0 Direct Entry, Subcatchment 55S: Direct to Bluff Creek - East Basin Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)38 36 34 32 30 28 26 24 22 20 18 16 14 12 10 8 6 4 2 0 MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Runoff Area=167,215 sf Runoff Volume=1.623 af Runoff Depth=5.07" Tc=5.0 min CN=80 34.38 cfs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 337HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 71-1S: Interlacn Subcatch 1 Runoff = 18.06 cfs @ 12.10 hrs, Volume= 0.959 af, Depth= 5.53" Routed to Pond 71P : Interlachen Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Area (ac) CN Description * 2.080 84 Weoghted 2.080 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 7.0 Direct Entry, Subcatchment 71-1S: Interlacn Subcatch 1 Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Runoff Area=2.080 ac Runoff Volume=0.959 af Runoff Depth=5.53" Tc=7.0 min CN=84 18.06 cfs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 338HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 71-2S: Interlacn Subcatch 2 Runoff = 11.67 cfs @ 12.09 hrs, Volume= 0.716 af, Depth= 7.41" Routed to Pond 71P : Interlachen Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Area (ac) CN Description * 1.160 100 1.160 100.00% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 7.0 Direct Entry, Subcatchment 71-2S: Interlacn Subcatch 2 Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)13 12 11 10 9 8 7 6 5 4 3 2 1 0 MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Runoff Area=1.160 ac Runoff Volume=0.716 af Runoff Depth=7.41" Tc=7.0 min CN=100 11.67 cfs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 339HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 72S: 6_Temp Runoff = 7.25 cfs @ 12.12 hrs, Volume= 0.452 af, Depth= 6.70" Routed to Reach 72R : N68 Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Area (ac) CN Description * 0.810 94 Weighted 0.810 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 9.0 Direct Entry, Subcatchment 72S: 6_Temp Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)8 7 6 5 4 3 2 1 0 MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Runoff Area=0.810 ac Runoff Volume=0.452 af Runoff Depth=6.70" Tc=9.0 min CN=94 7.25 cfs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 340HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 73S: N68 Runoff = 23.67 cfs @ 12.09 hrs, Volume= 1.410 af, Depth= 7.17" Routed to Reach 72R : N68 Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Area (ac) CN Description * 2.360 98 Weighted 2.360 100.00% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 7.0 Direct Entry, Subcatchment 73S: N68 Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)26 24 22 20 18 16 14 12 10 8 6 4 2 0 MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Runoff Area=2.360 ac Runoff Volume=1.410 af Runoff Depth=7.17" Tc=7.0 min CN=98 23.67 cfs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 341HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 74S: 5_Temp Runoff = 8.78 cfs @ 12.12 hrs, Volume= 0.529 af, Depth= 6.23" Routed to Reach 72R : N68 Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Area (ac) CN Description * 1.020 90 1.020 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 9.0 Direct Entry, Subcatchment 74S: 5_Temp Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)9 8 7 6 5 4 3 2 1 0 MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Runoff Area=1.020 ac Runoff Volume=0.529 af Runoff Depth=6.23" Tc=9.0 min CN=90 8.78 cfs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 342HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 75S: 3225 Runoff = 30.19 cfs @ 12.09 hrs, Volume= 1.799 af, Depth= 7.17" Routed to Pond 71P : Interlachen Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Area (ac) CN Description * 3.010 98 Weighted 3.010 100.00% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 7.0 Direct Entry, Subcatchment 75S: 3225 Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)32 30 28 26 24 22 20 18 16 14 12 10 8 6 4 2 0 MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Runoff Area=3.010 ac Runoff Volume=1.799 af Runoff Depth=7.17" Tc=7.0 min CN=98 30.19 cfs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 343HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 76S: 3236 Runoff = 50.13 cfs @ 12.18 hrs, Volume= 3.514 af, Depth= 5.07" Routed to Pond 71P : Interlachen Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Area (ac) CN Description * 8.310 80 Weighted 8.310 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 14.0 Direct Entry, Subcatchment 76S: 3236 Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)55 50 45 40 35 30 25 20 15 10 5 0 MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Runoff Area=8.310 ac Runoff Volume=3.514 af Runoff Depth=5.07" Tc=14.0 min CN=80 50.13 cfs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 344HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 77S: 3238 Runoff = 8.11 cfs @ 12.10 hrs, Volume= 0.429 af, Depth= 5.42" Routed to Pond 71P : Interlachen Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Area (ac) CN Description * 0.950 83 Weighted 0.950 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 7.0 Direct Entry, Subcatchment 77S: 3238 Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)9 8 7 6 5 4 3 2 1 0 MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Runoff Area=0.950 ac Runoff Volume=0.429 af Runoff Depth=5.42" Tc=7.0 min CN=83 8.11 cfs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 345HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 78S: 3243 Runoff = 6.02 cfs @ 12.09 hrs, Volume= 0.333 af, Depth= 6.34" Routed to Pond 71P : Interlachen Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Area (ac) CN Description * 0.630 91 Weighted 0.630 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 7.0 Direct Entry, Subcatchment 78S: 3243 Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)6 5 4 3 2 1 0 MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Runoff Area=0.630 ac Runoff Volume=0.333 af Runoff Depth=6.34" Tc=7.0 min CN=91 6.02 cfs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 346HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 79S: 3245 Runoff = 20.56 cfs @ 12.09 hrs, Volume= 1.225 af, Depth= 7.17" Routed to Pond 71P : Interlachen Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Area (ac) CN Description * 2.050 98 Weighted 2.050 100.00% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 7.0 Direct Entry, Subcatchment 79S: 3245 Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Runoff Area=2.050 ac Runoff Volume=1.225 af Runoff Depth=7.17" Tc=7.0 min CN=98 20.56 cfs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 347HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 80S: 3250 Runoff = 3.31 cfs @ 12.09 hrs, Volume= 0.182 af, Depth= 6.23" Routed to Pond 71P : Interlachen Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Area (ac) CN Description * 0.350 90 Weighted 0.350 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 7.0 Direct Entry, Subcatchment 80S: 3250 Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)3 2 1 0 MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Runoff Area=0.350 ac Runoff Volume=0.182 af Runoff Depth=6.23" Tc=7.0 min CN=90 3.31 cfs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 348HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 81S: 3343 Runoff = 28.32 cfs @ 12.26 hrs, Volume= 2.293 af, Depth= 4.62" Routed to Pond 71P : Interlachen Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Area (ac) CN Description * 5.950 76 Weighted 5.950 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 19.0 Direct Entry, Subcatchment 81S: 3343 Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)30 28 26 24 22 20 18 16 14 12 10 8 6 4 2 0 MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Runoff Area=5.950 ac Runoff Volume=2.293 af Runoff Depth=4.62" Tc=19.0 min CN=76 28.32 cfs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 349HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 82S: 3345 Runoff = 11.48 cfs @ 12.10 hrs, Volume= 0.598 af, Depth= 4.85" Routed to Pond 71P : Interlachen Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Area (ac) CN Description * 1.480 78 Weighted 1.480 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 7.0 Direct Entry, Subcatchment 82S: 3345 Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)12 11 10 9 8 7 6 5 4 3 2 1 0 MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Runoff Area=1.480 ac Runoff Volume=0.598 af Runoff Depth=4.85" Tc=7.0 min CN=78 11.48 cfs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 350HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 83S: 3348 Runoff = 6.36 cfs @ 12.10 hrs, Volume= 0.343 af, Depth= 5.88" Routed to Pond 71P : Interlachen Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Area (ac) CN Description * 0.700 87 Weighted 0.700 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 7.0 Direct Entry, Subcatchment 83S: 3348 Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)7 6 5 4 3 2 1 0 MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Runoff Area=0.700 ac Runoff Volume=0.343 af Runoff Depth=5.88" Tc=7.0 min CN=87 6.36 cfs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 351HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 84S: SE12 Runoff = 13.85 cfs @ 12.15 hrs, Volume= 0.868 af, Depth= 4.96" Routed to Pond 72P : South MNDOT M9 Wetland Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Area (ac) CN Description * 2.100 79 Weighted 2.100 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 11.0 Direct Entry, Subcatchment 84S: SE12 Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Runoff Area=2.100 ac Runoff Volume=0.868 af Runoff Depth=4.96" Tc=11.0 min CN=79 13.85 cfs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 352HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 85S: 1S Runoff = 20.10 cfs @ 12.21 hrs, Volume= 1.454 af, Depth= 3.85" Routed to Pond 72P : South MNDOT M9 Wetland Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Area (ac) CN Description * 4.530 69 Weighted 4.530 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 15.0 Direct Entry, Subcatchment 85S: 1S Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Runoff Area=4.530 ac Runoff Volume=1.454 af Runoff Depth=3.85" Tc=15.0 min CN=69 20.10 cfs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 353HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 86S: 2S Runoff = 19.99 cfs @ 12.36 hrs, Volume= 1.862 af, Depth= 3.85" Routed to Pond 72P : South MNDOT M9 Wetland Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Area (ac) CN Description * 5.800 69 Weighted 5.800 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 25.0 Direct Entry, Subcatchment 86S: 2S Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Runoff Area=5.800 ac Runoff Volume=1.862 af Runoff Depth=3.85" Tc=25.0 min CN=69 19.99 cfs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 354HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 87S: M9 Runoff = 83.28 cfs @ 12.40 hrs, Volume= 8.338 af, Depth= 4.62" Routed to Pond 72P : South MNDOT M9 Wetland Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Area (ac) CN Description * 21.638 76 Weighted 21.638 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 29.0 Direct Entry, Subcatchment 87S: M9 Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)90 85 80 75 70 65 60 55 50 45 40 35 30 25 20 15 10 5 0 MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Runoff Area=21.638 ac Runoff Volume=8.338 af Runoff Depth=4.62" Tc=29.0 min CN=76 83.28 cfs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 355HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Reach 40R: South Drainage [40] Hint: Not Described (Outflow=Inflow) Inflow Area = 47.277 ac, 10.23% Impervious, Inflow Depth = 4.44" for 100y 24hr event Inflow = 66.06 cfs @ 12.30 hrs, Volume= 17.497 af Outflow = 66.06 cfs @ 12.30 hrs, Volume= 17.497 af, Atten= 0%, Lag= 0.0 min Routed to Pond 72P : South MNDOT M9 Wetland Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Reach 40R: South Drainage Inflow Outflow Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)70 65 60 55 50 45 40 35 30 25 20 15 10 5 0 Inflow Area=47.277 ac 66.06 cfs 66.06 cfs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 356HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Reach 42.2R: Southeast [40] Hint: Not Described (Outflow=Inflow) Inflow Area = 14.645 ac, 15.49% Impervious, Inflow Depth = 5.45" for 100y 24hr event Inflow = 7.19 cfs @ 12.07 hrs, Volume= 6.650 af Outflow = 7.19 cfs @ 12.07 hrs, Volume= 6.650 af, Atten= 0%, Lag= 0.0 min Routed to Reach 40R : South Drainage Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Reach 42.2R: Southeast Inflow Outflow Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)8 7 6 5 4 3 2 1 0 Inflow Area=14.645 ac 7.19 cfs 7.19 cfs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 357HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Reach 44R: Southwest [40] Hint: Not Described (Outflow=Inflow) Inflow Area = 29.409 ac, 8.74% Impervious, Inflow Depth = 4.16" for 100y 24hr event Inflow = 56.50 cfs @ 12.36 hrs, Volume= 10.205 af Outflow = 56.50 cfs @ 12.36 hrs, Volume= 10.205 af, Atten= 0%, Lag= 0.0 min Routed to Reach 40R : South Drainage Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Reach 44R: Southwest Inflow Outflow Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)60 55 50 45 40 35 30 25 20 15 10 5 0 Inflow Area=29.409 ac 56.50 cfs 56.50 cfs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 358HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Reach 46uR: South Swale - at East Property Line of THs Inflow Area = 1.319 ac, 33.07% Impervious, Inflow Depth = 5.76" for 100y 24hr event Inflow = 9.69 cfs @ 12.15 hrs, Volume= 0.633 af Outflow = 9.68 cfs @ 12.15 hrs, Volume= 0.633 af, Atten= 0%, Lag= 0.1 min Routed to Pond 46P : Triangle Basin Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Max. Velocity= 4.92 fps, Min. Travel Time= 0.1 min Avg. Velocity = 1.23 fps, Avg. Travel Time= 0.5 min Peak Storage= 67 cf @ 12.15 hrs Average Depth at Peak Storage= 0.45' , Surface Width= 5.71' Bank-Full Depth= 0.50' Flow Area= 2.3 sf, Capacity= 11.72 cfs 3.00' x 0.50' deep channel, n= 0.025 Short grass Side Slope Z-value= 3.0 '/' Top Width= 6.00' Length= 34.0' Slope= 0.0294 '/' Inlet Invert= 894.00', Outlet Invert= 893.00' ‡ Reach 46uR: South Swale - at East Property Line of THs Inflow Outflow Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)10 9 8 7 6 5 4 3 2 1 0 Inflow Area=1.319 ac Avg. Flow Depth=0.45' Max Vel=4.92 fps n=0.025 L=34.0' S=0.0294 '/' Capacity=11.72 cfs 9.69 cfs 9.68 cfs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 359HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Reach 48R: Developed Area To Wetland 4 [40] Hint: Not Described (Outflow=Inflow) Inflow Area = 2.860 ac, 40.99% Impervious, Inflow Depth = 5.93" for 100y 24hr event Inflow = 8.53 cfs @ 12.36 hrs, Volume= 1.414 af Outflow = 8.53 cfs @ 12.36 hrs, Volume= 1.414 af, Atten= 0%, Lag= 0.0 min Routed to Pond 44P : Wetland 4 Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Reach 48R: Developed Area To Wetland 4 Inflow Outflow Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)9 8 7 6 5 4 3 2 1 0 Inflow Area=2.860 ac 8.53 cfs 8.53 cfs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 360HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Reach 72R: N68 [52] Hint: Inlet/Outlet conditions not evaluated [55] Hint: Peak inflow is 185% of Manning's capacity [76] Warning: Detained 0.166 af (Pond w/culvert advised) Inflow Area = 4.190 ac, 56.32% Impervious, Inflow Depth = 6.85" for 100y 24hr event Inflow = 39.13 cfs @ 12.10 hrs, Volume= 2.391 af Outflow = 21.18 cfs @ 12.02 hrs, Volume= 2.391 af, Atten= 46%, Lag= 0.0 min Routed to Pond 71P : Interlachen Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Max. Velocity= 7.68 fps, Min. Travel Time= 0.1 min Avg. Velocity = 2.56 fps, Avg. Travel Time= 0.4 min Peak Storage= 198 cf @ 12.03 hrs Average Depth at Peak Storage= 2.00' Bank-Full Depth= 2.00' Flow Area= 3.1 sf, Capacity= 21.17 cfs 24.0" Round Pipe n= 0.012 Length= 63.0' Slope= 0.0075 '/' Inlet Invert= 872.00', Outlet Invert= 871.53' MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 361HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Reach 72R: N68 Inflow Outflow Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)42 40 38 36 34 32 30 28 26 24 22 20 18 16 14 12 10 8 6 4 2 0 Inflow Area=4.190 ac Avg. Flow Depth=2.00' Max Vel=7.68 fps 24.0" Round Pipe n=0.012 L=63.0' S=0.0075 '/' Capacity=21.17 cfs 39.13 cfs 21.18 cfs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 362HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Pond 41.3P: South-West Temp Basin Inflow Area = 14.560 ac, 9.59% Impervious, Inflow Depth = 5.28" for 100y 24hr event Inflow = 55.59 cfs @ 12.16 hrs, Volume= 6.406 af Outflow = 26.99 cfs @ 12.81 hrs, Volume= 6.405 af, Atten= 51%, Lag= 38.9 min Primary = 3.54 cfs @ 12.81 hrs, Volume= 2.124 af Routed to Reach 44R : Southwest Secondary = 23.45 cfs @ 12.81 hrs, Volume= 4.281 af Routed to Reach 44R : Southwest Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 880.40' @ 12.81 hrs Surf.Area= 35,221 sf Storage= 103,615 cf Plug-Flow detention time= 90.9 min calculated for 6.405 af (100% of inflow) Center-of-Mass det. time= 90.5 min ( 887.3 - 796.9 ) Volume Invert Avail.Storage Storage Description #1 875.63' 126,081 cf Surface Basin (Prismatic) Listed below (Recalc) Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 875.63 8,290 0 0 876.00 12,755 3,893 3,893 878.00 20,605 33,360 37,253 879.00 26,525 23,565 60,818 880.00 32,000 29,263 90,081 881.00 40,000 36,000 126,081 Device Routing Invert Outlet Devices #1 Primary 875.63'15.0" Round Culvert L= 46.0' RCP, end-section conforming to fill, Ke= 0.500 Inlet / Outlet Invert= 875.63' / 875.00' S= 0.0137 '/' Cc= 0.900 n= 0.011 Concrete pipe, straight & clean, Flow Area= 1.23 sf #2 Secondary 877.00'24.0" Round Culvert L= 46.0' RCP, end-section conforming to fill, Ke= 0.500 Inlet / Outlet Invert= 877.00' / 876.37' S= 0.0137 '/' Cc= 0.900 n= 0.011 Concrete pipe, straight & clean, Flow Area= 3.14 sf #3 Device 1 875.63'8.0" Round Culvert L= 8.0' CPP, square edge headwall, Ke= 0.500 Inlet / Outlet Invert= 875.63' / 875.52' S= 0.0138 '/' Cc= 0.900 n= 0.011 PVC, smooth interior, Flow Area= 0.35 sf Primary OutFlow Max=3.54 cfs @ 12.81 hrs HW=880.40' TW=0.00' (Dynamic Tailwater) 1=Culvert (Passes 3.54 cfs of 12.03 cfs potential flow) 3=Culvert (Inlet Controls 3.54 cfs @ 10.14 fps) Secondary OutFlow Max=23.45 cfs @ 12.81 hrs HW=880.40' TW=0.00' (Dynamic Tailwater) 2=Culvert (Inlet Controls 23.45 cfs @ 7.46 fps) MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 363HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Pond 41.3P: South-West Temp Basin Inflow Outflow Primary Secondary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)60 55 50 45 40 35 30 25 20 15 10 5 0 Inflow Area=14.560 ac Peak Elev=880.40' Storage=103,615 cf 55.59 cfs 26.99 cfs 3.54 cfs 23.45 cfs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 364HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Pond 44P: Wetland 4 Inflow Area = 13.102 ac, 8.95% Impervious, Inflow Depth = 3.16" for 100y 24hr event Inflow = 30.63 cfs @ 12.29 hrs, Volume= 3.453 af Outflow = 30.60 cfs @ 12.30 hrs, Volume= 3.452 af, Atten= 0%, Lag= 0.5 min Primary = 30.60 cfs @ 12.30 hrs, Volume= 3.452 af Routed to Reach 44R : Southwest Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 884.70' @ 12.30 hrs Surf.Area= 2,580 sf Storage= 1,162 cf Plug-Flow detention time= 2.3 min calculated for 3.452 af (100% of inflow) Center-of-Mass det. time= 1.9 min ( 850.1 - 848.2 ) Volume Invert Avail.Storage Storage Description #1 884.00' 37,633 cf Custom Stage Data (Prismatic) Listed below (Recalc) Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 884.00 870 0 0 884.50 1,980 713 713 885.00 3,500 1,370 2,083 886.00 7,800 5,650 7,733 887.00 14,000 10,900 18,633 888.00 24,000 19,000 37,633 Device Routing Invert Outlet Devices #1 Primary 884.03'Asymmetrical Weir, C= 3.27 Offset (feet) 0.00 51.00 133.60 176.00 217.30 239.00 Elev. (feet) 889.78 886.05 884.03 885.84 889.00 889.78 Primary OutFlow Max=30.59 cfs @ 12.30 hrs HW=884.70' TW=0.00' (Dynamic Tailwater) 1=Asymmetrical Weir (Weir Controls 30.59 cfs @ 1.07 fps) MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 365HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Pond 44P: Wetland 4 Inflow Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)34 32 30 28 26 24 22 20 18 16 14 12 10 8 6 4 2 0 Inflow Area=13.102 ac Peak Elev=884.70' Storage=1,162 cf 30.63 cfs 30.60 cfs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 366HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Pond 46P: Triangle Basin Inflow Area = 2.769 ac, 15.75% Impervious, Inflow Depth = 5.40" for 100y 24hr event Inflow = 19.27 cfs @ 12.15 hrs, Volume= 1.246 af Outflow = 9.38 cfs @ 12.35 hrs, Volume= 1.246 af, Atten= 51%, Lag= 11.9 min Primary = 8.79 cfs @ 12.35 hrs, Volume= 1.242 af Routed to Pond 41.3P : South-West Temp Basin Secondary = 0.59 cfs @ 12.35 hrs, Volume= 0.004 af Routed to Pond 41.3P : South-West Temp Basin Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 890.80' @ 12.35 hrs Surf.Area= 6,228 sf Storage= 14,198 cf Plug-Flow detention time= 71.5 min calculated for 1.246 af (100% of inflow) Center-of-Mass det. time= 71.5 min ( 845.9 - 774.4 ) Volume Invert Avail.Storage Storage Description #1 887.17' 14,801 cf Open pond (Prismatic) Listed below (Recalc) Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 887.17 1,586 0 0 890.90 6,350 14,801 14,801 Device Routing Invert Outlet Devices #1 Primary 884.37'18.0" Round Culvert L= 125.0' RCP, sq.cut end projecting, Ke= 0.500 Inlet / Outlet Invert= 884.37' / 875.62' S= 0.0700 '/' Cc= 0.900 n= 0.011 Concrete pipe, straight & clean, Flow Area= 1.77 sf #2 Device 1 888.00'15.0" Vert. Orifice/Grate C= 0.600 Limited to weir flow at low heads #3 Secondary 890.75'20.0' long x 5.0' breadth Broad-Crested Rectangular Weir Head (feet) 0.20 0.40 0.60 0.80 1.00 1.20 1.40 1.60 1.80 2.00 2.50 3.00 3.50 4.00 4.50 5.00 5.50 Coef. (English) 2.34 2.50 2.70 2.68 2.68 2.66 2.65 2.65 2.65 2.65 2.67 2.66 2.68 2.70 2.74 2.79 2.88 #4 Device 1 887.17'0.450 in/hr Filtration over Surface area Phase-In= 0.01' Primary OutFlow Max=8.79 cfs @ 12.35 hrs HW=890.80' TW=879.62' (Dynamic Tailwater) 1=Culvert (Passes 8.79 cfs of 20.29 cfs potential flow) 2=Orifice/Grate (Orifice Controls 8.72 cfs @ 7.11 fps) 4=Filtration (Exfiltration Controls 0.06 cfs) Secondary OutFlow Max=0.59 cfs @ 12.35 hrs HW=890.80' TW=879.62' (Dynamic Tailwater) 3=Broad-Crested Rectangular Weir (Weir Controls 0.59 cfs @ 0.54 fps) MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 367HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Pond 46P: Triangle Basin Inflow Outflow Primary Secondary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 Inflow Area=2.769 ac Peak Elev=890.80' Storage=14,198 cf 19.27 cfs 9.38 cfs 8.79 cfs 0.59 cfs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 368HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Pond 47P: Bluff Creek - West Basin - 60" PIPE Inflow Area = 2.860 ac, 40.99% Impervious, Inflow Depth = 5.93" for 100y 24hr event Inflow = 22.44 cfs @ 12.12 hrs, Volume= 1.414 af Outflow = 8.53 cfs @ 12.36 hrs, Volume= 1.414 af, Atten= 62%, Lag= 14.6 min Primary = 8.53 cfs @ 12.36 hrs, Volume= 1.414 af Routed to Reach 48R : Developed Area To Wetland 4 Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 914.95' @ 12.36 hrs Surf.Area= 6,385 sf Storage= 23,896 cf Plug-Flow detention time= 126.3 min calculated for 1.414 af (100% of inflow) Center-of-Mass det. time= 126.3 min ( 891.7 - 765.4 ) Volume Invert Avail.Storage Storage Description #1A 908.00' 8,037 cf 56.09'W x 113.17'L x 6.08'H Field A 38,615 cf Overall - 18,524 cf Embedded = 20,091 cf x 40.0% Voids #2A 908.00' 15,598 cf ADS N-12 60" x 35 Inside #1 Inside= 59.5"W x 59.5"H => 19.30 sf x 20.00'L = 386.0 cf Outside= 67.0"W x 67.0"H => 22.92 sf x 20.00'L = 458.4 cf 35 Chambers in 7 Rows 54.09' Header x 19.30 sf x 2 = 2,087.7 cf Inside #3 908.00' 34,645 cf 4.00'D x 919.00'H Vertical Cone/Cylinder x 3 58,280 cf Total Available Storage Storage Group A created with Chamber Wizard Device Routing Invert Outlet Devices #1 Primary 905.20'15.0" Round Culvert L= 312.0' RCP, square edge headwall, Ke= 0.500 Inlet / Outlet Invert= 905.20' / 901.89' S= 0.0106 '/' Cc= 0.900 n= 0.013 Concrete pipe, straight & clean, Flow Area= 1.23 sf #2 Device 1 905.50'14.0" Round Culvert L= 20.0' CPP, square edge headwall, Ke= 0.500 Inlet / Outlet Invert= 905.50' / 905.20' S= 0.0150 '/' Cc= 0.900 n= 0.011 PVC, smooth interior, Flow Area= 1.07 sf #3 Device 2 909.50'12.0" Vert. Orifice - Overflow C= 0.600 Limited to weir flow at low heads #4 Device 2 906.00'8.0" Vert. Orifice - Underdrain C= 0.600 Limited to weir flow at low heads #5 Device 4 908.00'0.800 in/hr Filtration over Horizontal area Phase-In= 0.01' Primary OutFlow Max=8.50 cfs @ 12.36 hrs HW=914.91' TW=0.00' (Dynamic Tailwater) 1=Culvert (Passes 8.50 cfs of 11.40 cfs potential flow) 2=Culvert (Passes 8.50 cfs of 15.29 cfs potential flow) 3=Orifice - Overflow (Orifice Controls 8.38 cfs @ 10.67 fps) 4=Orifice - Underdrain (Passes 0.12 cfs of 4.92 cfs potential flow) 5=Filtration (Exfiltration Controls 0.12 cfs) MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 369HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Pond 47P: Bluff Creek - West Basin - 60" PIPE - Chamber Wizard Field A Chamber Model = ADS N-12 60" (ADS N-12® Pipe) Inside= 59.5"W x 59.5"H => 19.30 sf x 20.00'L = 386.0 cf Outside= 67.0"W x 67.0"H => 22.92 sf x 20.00'L = 458.4 cf 67.0" Wide + 30.0" Spacing = 97.0" C-C Row Spacing 5 Chambers/Row x 20.00' Long +5.58' Header x 2 = 111.17' Row Length +12.0" End Stone x 2 = 113.17' Base Length 7 Rows x 67.0" Wide + 30.0" Spacing x 6 + 12.0" Side Stone x 2 = 56.09' Base Width 67.0" Chamber Height + 6.0" Stone Cover = 6.08' Field Height 35 Chambers x 386.0 cf + 54.09' Header x 19.30 sf x 2 = 15,597.7 cf Chamber Storage 35 Chambers x 458.4 cf + 54.09' Header x 22.92 sf x 2 = 18,524.0 cf Displacement 38,615.4 cf Field - 18,524.0 cf Chambers = 20,091.4 cf Stone x 40.0% Voids = 8,036.6 cf Stone Storage Chamber Storage + Stone Storage = 23,634.3 cf = 0.543 af Overall Storage Efficiency = 61.2% Overall System Size = 113.17' x 56.09' x 6.08' 35 Chambers 1,430.2 cy Field 744.1 cy Stone MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 370HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Pond 47P: Bluff Creek - West Basin - 60" PIPE Inflow Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 Inflow Area=2.860 ac Peak Elev=914.95' Storage=23,896 cf 22.44 cfs 8.53 cfs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 371HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Pond 48P: Bluff Creek - East Basin [44] Hint: Outlet device #2 is below defined storage Inflow Area = 7.828 ac, 28.98% Impervious, Inflow Depth = 5.78" for 100y 24hr event Inflow = 62.96 cfs @ 12.09 hrs, Volume= 3.773 af Outflow = 2.39 cfs @ 15.05 hrs, Volume= 3.773 af, Atten= 96%, Lag= 177.3 min Primary = 2.39 cfs @ 15.05 hrs, Volume= 3.773 af Routed to Pond 54P : South-East Temp Basin Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 899.94' @ 15.05 hrs Surf.Area= 48,164 sf Storage= 121,365 cf Plug-Flow detention time= (not calculated: outflow precedes inflow) Center-of-Mass det. time= 620.1 min ( 1,384.5 - 764.5 ) Volume Invert Avail.Storage Storage Description #1 897.20' 340,085 cf Open Pond (Prismatic) Listed below (Recalc) Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 897.20 40,540 0 0 904.00 59,485 340,085 340,085 Device Routing Invert Outlet Devices #1 Primary 895.35'12.0" Round Culvert L= 637.0' RCP, sq.cut end projecting, Ke= 0.500 Inlet / Outlet Invert= 895.35' / 888.98' S= 0.0100 '/' Cc= 0.900 n= 0.017 Concrete sewer w/manholes & inlets, Flow Area= 0.79 sf #2 Device 1 897.00'8.0" Round Temp Outlet Pipe L= 21.0' CPP, mitered to conform to fill, Ke= 0.700 Inlet / Outlet Invert= 897.00' / 895.35' S= 0.0786 '/' Cc= 0.900 n= 0.011 PVC, smooth interior, Flow Area= 0.35 sf Primary OutFlow Max=2.39 cfs @ 15.05 hrs HW=899.94' TW=883.88' (Dynamic Tailwater) 1=Culvert (Passes 2.39 cfs of 3.33 cfs potential flow) 2=Temp Outlet Pipe (Inlet Controls 2.39 cfs @ 6.85 fps) MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 372HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Pond 48P: Bluff Creek - East Basin Inflow Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)70 65 60 55 50 45 40 35 30 25 20 15 10 5 0 Inflow Area=7.828 ac Peak Elev=899.94' Storage=121,365 cf 62.96 cfs 2.39 cfs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 373HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Pond 52P: South-Center Temp Basin Inflow Area = 8.180 ac, 9.42% Impervious, Inflow Depth = 5.28" for 100y 24hr event Inflow = 35.39 cfs @ 12.33 hrs, Volume= 3.599 af Outflow = 34.59 cfs @ 12.37 hrs, Volume= 3.599 af, Atten= 2%, Lag= 2.8 min Primary = 34.59 cfs @ 12.37 hrs, Volume= 3.599 af Routed to Pond 41.3P : South-West Temp Basin Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 904.50' @ 12.37 hrs Surf.Area= 11,427 sf Storage= 5,444 cf Plug-Flow detention time= 2.6 min calculated for 3.599 af (100% of inflow) Center-of-Mass det. time= 2.6 min ( 789.5 - 787.0 ) Volume Invert Avail.Storage Storage Description #1 903.14' 49,230 cf Custom Stage Data (Prismatic) Listed below (Recalc) Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 903.14 10 0 0 904.00 3,775 1,628 1,628 905.00 19,015 11,395 13,023 906.00 53,400 36,208 49,230 Device Routing Invert Outlet Devices #1 Primary 903.14'Custom Weir/Orifice, Cv= 2.62 (C= 3.28) Head (feet) 0.00 0.25 0.50 0.75 1.00 2.00 Width (feet) 0.10 4.20 6.25 8.30 12.50 12.50 Primary OutFlow Max=34.59 cfs @ 12.37 hrs HW=904.50' TW=879.70' (Dynamic Tailwater) 1=Custom Weir/Orifice (Weir Controls 34.59 cfs @ 3.21 fps) MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 374HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Pond 52P: South-Center Temp Basin Inflow Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)38 36 34 32 30 28 26 24 22 20 18 16 14 12 10 8 6 4 2 0 Inflow Area=8.180 ac Peak Elev=904.50' Storage=5,444 cf 35.39 cfs 34.59 cfs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 375HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Pond 54P: South-East Temp Basin Inflow Area = 13.937 ac, 16.28% Impervious, Inflow Depth = 5.47" for 100y 24hr event Inflow = 28.36 cfs @ 12.37 hrs, Volume= 6.356 af Outflow = 2.80 cfs @ 16.62 hrs, Volume= 6.355 af, Atten= 90%, Lag= 254.7 min Primary = 1.80 cfs @ 16.62 hrs, Volume= 5.831 af Routed to Reach 42.2R : Southeast Secondary = 1.00 cfs @ 16.62 hrs, Volume= 0.524 af Routed to Reach 42.2R : Southeast Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 883.91' @ 16.62 hrs Surf.Area= 92,885 sf Storage= 113,230 cf Plug-Flow detention time= 735.1 min calculated for 6.355 af (100% of inflow) Center-of-Mass det. time= 735.2 min ( 1,879.5 - 1,144.3 ) Volume Invert Avail.Storage Storage Description #1 879.00' 121,861 cf Custom Stage Data (Prismatic) Listed below (Recalc) Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 879.00 11,945 0 0 881.00 14,583 26,528 26,528 883.00 20,500 35,083 61,611 884.00 100,000 60,250 121,861 Device Routing Invert Outlet Devices #1 Primary 874.38'18.0" Round Culvert L= 68.0' RCP, sq.cut end projecting, Ke= 0.500 Inlet / Outlet Invert= 874.38' / 874.05' S= 0.0049 '/' Cc= 0.900 n= 0.013 Concrete pipe, straight & clean, Flow Area= 1.77 sf #2 Device 1 879.00'6.0" Round Culvert L= 29.0' CPP, mitered to conform to fill, Ke= 0.700 Inlet / Outlet Invert= 879.00' / 878.71' S= 0.0100 '/' Cc= 0.900 n= 0.011 PVC, smooth interior, Flow Area= 0.20 sf #3 Secondary 883.85'25.0' long x 50.0' breadth Broad-Crested Rectangular Weir Head (feet) 0.20 0.40 0.60 0.80 1.00 1.20 1.40 1.60 Coef. (English) 2.68 2.70 2.70 2.64 2.63 2.64 2.64 2.63 Primary OutFlow Max=1.80 cfs @ 16.62 hrs HW=883.91' TW=0.00' (Dynamic Tailwater) 1=Culvert (Passes 1.80 cfs of 24.76 cfs potential flow) 2=Culvert (Inlet Controls 1.80 cfs @ 9.17 fps) Secondary OutFlow Max=1.00 cfs @ 16.62 hrs HW=883.91' TW=0.00' (Dynamic Tailwater) 3=Broad-Crested Rectangular Weir (Weir Controls 1.00 cfs @ 0.66 fps) MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 376HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Pond 54P: South-East Temp Basin Inflow Outflow Primary Secondary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)30 28 26 24 22 20 18 16 14 12 10 8 6 4 2 0 Inflow Area=13.937 ac Peak Elev=883.91' Storage=113,230 cf 28.36 cfs 2.80 cfs 1.80 cfs 1.00 cfs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 377HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Pond 71P: Interlachen [44] Hint: Outlet device #2 is below defined storage [63] Warning: Exceeded Reach 72R INLET depth by 2.96' @ 13.18 hrs Inflow Area = 30.860 ac, 27.80% Impervious, Inflow Depth = 5.75" for 100y 24hr event Inflow = 190.89 cfs @ 12.11 hrs, Volume= 14.781 af Outflow = 32.14 cfs @ 12.84 hrs, Volume= 14.766 af, Atten= 83%, Lag= 43.5 min Primary = 32.14 cfs @ 12.84 hrs, Volume= 14.766 af Routed to Pond 72P : South MNDOT M9 Wetland Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 875.52' @ 12.91 hrs Surf.Area= 77,344 sf Storage= 343,415 cf Plug-Flow detention time= 880.3 min calculated for 14.766 af (100% of inflow) Center-of-Mass det. time= 880.1 min ( 1,643.6 - 763.5 ) Volume Invert Avail.Storage Storage Description #1 870.00' 381,460 cf Custom Stage Data (Prismatic) Listed below (Recalc) Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 870.00 50,570 0 0 872.00 56,860 107,430 107,430 875.00 74,330 196,785 304,215 876.00 80,160 77,245 381,460 Device Routing Invert Outlet Devices #1 Primary 870.00'24.0" Round Culvert L= 33.0' RCP, square edge headwall, Ke= 0.500 Inlet / Outlet Invert= 870.00' / 869.67' S= 0.0100 '/' Cc= 0.900 n= 0.012, Flow Area= 3.14 sf #2 Device 1 866.61'24.0" Round Culvert L= 21.0' RCP, end-section conforming to fill, Ke= 0.500 Inlet / Outlet Invert= 866.50' / 866.61' S= -0.0052 '/' Cc= 0.900 n= 0.012, Flow Area= 3.14 sf Primary OutFlow Max=32.14 cfs @ 12.84 hrs HW=875.52' TW=871.00' (Dynamic Tailwater) 1=Culvert ( Controls 32.14 cfs) 2=Culvert (Inlet Controls 32.14 cfs @ 10.23 fps) MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 378HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Pond 71P: Interlachen Inflow Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)210 200 190 180 170 160 150 140 130 120 110 100 90 80 70 60 50 40 30 20 10 0 Inflow Area=30.860 ac Peak Elev=875.52' Storage=343,415 cf 190.89 cfs 32.14 cfs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 379HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Summary for Pond 72P: South MNDOT M9 Wetland [44] Hint: Outlet device #3 is below defined storage Inflow Area = 112.205 ac, 11.96% Impervious, Inflow Depth = 4.79" for 100y 24hr event Inflow = 217.76 cfs @ 12.34 hrs, Volume= 44.786 af Outflow = 5.96 cfs @ 20.19 hrs, Volume= 44.381 af, Atten= 97%, Lag= 470.8 min Primary = 5.96 cfs @ 20.19 hrs, Volume= 44.381 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 872.48' @ 20.19 hrs Surf.Area= 549,742 sf Storage= 1,395,325 cf Plug-Flow detention time= 3,168.4 min calculated for 44.380 af (99% of inflow) Center-of-Mass det. time= 3,100.5 min ( 4,347.9 - 1,247.3 ) Volume Invert Avail.Storage Storage Description #1 869.50' 2,891,990 cf Custom Stage Data (Prismatic) Listed below (Recalc) Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 869.50 214,970 0 0 870.00 433,070 162,010 162,010 871.00 489,600 461,335 623,345 872.00 532,650 511,125 1,134,470 875.00 639,030 1,757,520 2,891,990 Device Routing Invert Outlet Devices #1 Primary 869.00'18.0" Round Culvert L= 276.0' RCP, square edge headwall, Ke= 0.500 Inlet / Outlet Invert= 869.00' / 866.93' S= 0.0075 '/' Cc= 0.900 n= 0.013 Concrete pipe, straight & clean, Flow Area= 1.77 sf #2 Device 1 869.50'12.0" Vert. Orifice/Grate C= 0.600 Limited to weir flow at low heads #3 Device 2 869.36'18.0" Round Culvert L= 172.0' RCP, end-section conforming to fill, Ke= 0.500 Inlet / Outlet Invert= 868.50' / 869.36' S= -0.0050 '/' Cc= 0.900 n= 0.013 Concrete pipe, straight & clean, Flow Area= 1.77 sf Primary OutFlow Max=5.96 cfs @ 20.19 hrs HW=872.48' (Free Discharge) 1=Culvert (Passes 5.96 cfs of 11.16 cfs potential flow) 2=Orifice/Grate (Orifice Controls 5.96 cfs @ 7.59 fps) 3=Culvert (Passes 5.96 cfs of 10.37 cfs potential flow) MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda Ph 3 -- 2023-05-04 Printed 5/4/2023Prepared by Landform Professional Services Page 380HydroCAD® 10.10-6a s/n 01542 © 2020 HydroCAD Software Solutions LLC Pond 72P: South MNDOT M9 Wetland Inflow Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)240 230 220 210 200 190 180 170 160 150 140 130 120 110 100 90 80 70 60 50 40 30 20 10 0 Inflow Area=112.205 ac Peak Elev=872.48' Storage=1,395,325 cf 217.76 cfs 5.96 cfs Avienda 5/5/2023 Stormwater Management Plan – Phase 2 ii ii Appendix D Ultimate Drainage Map Ultimate Storm Sewer Drainage Map WET L A N D # 4 WETLAND #3 ROCK BED AREA = 11,000 S.F. ROCK BED AREA = 15,560 S.F. ROCK BED AREA = 53,000 S.F. ROCK BED AREA = 32,000 S.F. ROCK BED AREA = 37,592 S.F.ROCK BED AREA = 102,138 S.F. ROCK BED AREA = 51,485 S.F. ROCK BED AREA = 45,065 S.F. ROCK BED AREA = 75,600 S.F. ROCK BED AREA = 51,936 S.F. BCB EAST ROCK BED AREA = 52,085 S.F. ROCK BED AREA = 24,429 S.F. ROCK BED AREA = 51,048 S.F. ROCK BED AREA = 26,058 S.F. ROCK BED AREA = 94,313 S.F. ROCK BED AREA = 44,297 S.F. ROCK BED AREA 22,024 S.F. ROCK BED AREA 15,935 S.F. ROCK BED AREA = 65,233 S.F. ROCK BED AREA = 107,300 S.F. ROCK BED AREA 16,787 S.F. ROCK BED AREA = 30,930 S.F. MI N . L O W F L O O R E L E V A T I O N = 9 2 5 . 5 MIN. LOW FLOOR ELEVATION = 925.5LOW FLOOR ELEVATION ABOVE 897.1C.S.A.H. NO. 18 LYMAN BOULEVARD POWERS BOULEVARDU.S. TRUNK HIGHWAY NO. 212BLUFF CREEK BLVD.MILLS DRIVE RIVER ROCK DRIVE N.SUNSETTRAIL C.S.A.H.NO. 17C.S.A.H. NO. 17U.S. TRUNK HIGHWAY NO. 212Northwest 24S 28S Avienda Pkwy - NW 25S West - North 22oS From Lyman 33oS Offsite West - North 34S West Woods 34oS Offsite to West - South 34dS Offsite West Direct 35S Southwest 47S Bluff Creek Blvd - West 48S Bluff Creek Blvd - East 44S North Woods 43.1S East Woods 11.1S North 12S Central 45S Central - West South Townhomes 42.2S Southeast 10R Lake Susan Drainage 30R Southwest Drainage Wetland 3 34P West - South 20R NW Drainage 47P Bluff Creek Blvd - West Basin 48P Bluff Creek Blvd - East Basin 21S Direct to 21P 33P 33S Direct to Wetland 3 40.3S South - West 11.4S East Pond 11.4P East Pond 11.3S East 28P Avienda Pkwy - NW Basin 46P Triangle Basin 43.2S Northeast Woods 42.1S South 11oS From Powers 50R Bluff Creek Drainage 21R Lower Wetland 6 44R Wetland 4 Channel 42.1R South 40R South Drainage North Underground 11.1P East Underground 11.3P 21P North Basin 25P West - North 31P West - Central 40.3P South West 44P Wetland 4 16oS East Offsite 29oS North Offsite 36oS Southwest Offsite 41.1P South East 24P 41.1S South - East 41.3S South - West 41.2S South - Central South Central41.3P South West Northwest Basin 22S Direct to Wetland 6 12P Central Underground 40.2S South - Central 40.1S South - East 40.2P South Central 40.1P South East 48.1S South - North MNDOT WETLAND M10 MNDOT WETLAND M09 31S West - Central 48P(2) Bluff Creek Blvd - East Basin 46S 41.2P Landform and Site to Finish are registered service marks of Landform Professional Services, LLC.R R in collaboration with: LEVEL 7 DEVELOPMENT RSP ARCHITECTS · WELSH AND COLLIERS AVIENDA · Chanhassen, MN Stormwater Management Plan · 05.19.2020 ULTIMATE DRAINAGE NORTH 0 150 300 LEGEND PRIMARY DRAINAGE BOUNDARY SECONDARY DRAINAGE BOUNDARY TERTIARY DRAINAGE BOUNDARY TIME OF CONCENTRATION PATH 1S Name SUBCATCHMENT LABEL 1P Name 1R Name BASIN / POND LABEL REACH LABEL INFILTRATION BASIN (UNDERGROUND ROCK BED) (ILLUSTRATIVE ONLY) WETLAND BOUNARY DRAINAGE ARROW WET L A N D # 4 WETLAND #3 ROCK BED AREA = 11,000 S.F. ROCK BED AREA = 15,560 S.F. ROCK BED AREA = 53,000 S.F. ROCK BED AREA = 32,000 S.F. ROCK BED AREA = 37,592 S.F.ROCK BED AREA = 102,138 S.F. ROCK BED AREA = 51,485 S.F. ROCK BED AREA = 45,065 S.F. ROCK BED AREA = 75,600 S.F. ROCK BED AREA = 51,936 S.F. BCB EAST ROCK BED AREA = 52,085 S.F. ROCK BED AREA = 24,429 S.F. ROCK BED AREA = 51,048 S.F. ROCK BED AREA = 26,058 S.F. ROCK BED AREA = 94,313 S.F. ROCK BED AREA = 44,297 S.F. ROCK BED AREA 22,024 S.F. ROCK BED AREA 15,935 S.F. ROCK BED AREA = 65,233 S.F. ROCK BED AREA = 107,300 S.F. ROCK BED AREA 16,787 S.F. ROCK BED AREA = 30,930 S.F. MI N . L O W F L O O R E L E V A T I O N = 9 2 5 . 5 MIN. LOW FLOOR ELEVATION = 925.5LOW FLOOR ELEVATION ABOVE 897.1C.S.A.H. NO. 18 LYMAN BOULEVARD POWERS BOULEVARDU.S. TRUNK HIGHWAY NO. 212BLUFF CREEK BLVD.MILLS DRIVE RIVER ROCK DRIVE N.SUNSETTRAIL C.S.A.H.NO. 17C.S.A.H. NO. 17U.S. TRUNK HIGHWAY NO. 212Northwest 24S 28S Avienda Pkwy - NW 25S West - North 22oS From Lyman 33oS Offsite West - North 34S West Woods 34oS Offsite to West - South 34dS Offsite West Direct 35S Southwest 47S Bluff Creek Blvd - West 48S Bluff Creek Blvd - East 44S North Woods 43.1S East Woods 11.1S North 12S Central 45S Central - West South Townhomes 42.2S Southeast 10R Lake Susan Drainage 30R Southwest Drainage Wetland 3 34P West - South 20R NW Drainage 47P Bluff Creek Blvd - West Basin 48P Bluff Creek Blvd - East Basin 21S Direct to 21P 33P 33S Direct to Wetland 3 40.3S South - West 11.4S East Pond 11.4P East Pond 11.3S East 28P Avienda Pkwy - NW Basin 46P Triangle Basin 43.2S Northeast Woods 42.1S South 11oS From Powers 50R Bluff Creek Drainage 21R Lower Wetland 6 44R Wetland 4 Channel 42.1R South 40R South Drainage North Underground 11.1P East Underground 11.3P 21P North Basin 25P West - North 31P West - Central 40.3P South West 44P Wetland 4 16oS East Offsite 29oS North Offsite 36oS Southwest Offsite 41.1P South East 24P 41.1S South - East 41.3S South - West 41.2S South - Central South Central41.3P South West Northwest Basin 22S Direct to Wetland 6 12P Central Underground 40.2S South - Central 40.1S South - East 40.2P South Central 40.1P South East 48.1S South - North MNDOT WETLAND M10 MNDOT WETLAND M09 31S West - Central 48P(2) Bluff Creek Blvd - East Basin 46S 41.2P Landform and Site to Finish are registered service marks of Landform Professional Services, LLC.R R in collaboration with: LEVEL 7 DEVELOPMENT RSP ARCHITECTS · WELSH AND COLLIERS AVIENDA · Chanhassen, MN Stormwater Management Plan · 05.19.2020 ULTIMATE DRAINAGE & STORM NORTH 0 150 300 LEGEND PRIMARY DRAINAGE BOUNDARY SECONDARY DRAINAGE BOUNDARY TERTIARY DRAINAGE BOUNDARY TIME OF CONCENTRATION PATH 1S Name SUBCATCHMENT LABEL 1P Name 1R Name BASIN / POND LABEL REACH LABEL INFILTRATION BASIN (UNDERGROUND ROCK BED) (ILLUSTRATIVE ONLY) WETLAND BOUNARY DRAINAGE ARROW 9.6" Sand InfiltrationVolume18" SandFiltration BedPerforated Distribution Header Pipe or Chamber (typ.) Perforated Collection Pipe (typ.) Infiltration thru Bottom Geotextile (typ.) Gate Valve for Backup Outlet Water Level - Verification for Infiltration Infiltration Verification Manhole Overflow Outlet (Piped) Geotextile Wrapping System Filtration thru Sand Surface Infiltration Overflow Outlet (Piped)PavingSectionFinished Grade (Parking Lot)VariableNative FillFiltration Overflow Outlet (Piped) Catch Basin Inlet 3' MinNO SCALE ULTIMATE CONDITION FILTRATION / INFILTRATION SYSTEM1 Outlet Manholes Perforated Distribution Pipe (typ.) STORM SEWER/DISTRIBUTION PIPE COLLECTION PIPE SCD14001 Landform® and Site to Finish® are registered service marks of Landform Professional Services., LLC APPENDIX E Ultimate HydroCAD Model 11.1S North 11.3S East 11.4S East Pond 11oS From Powers 12S Central 16oS East Offsite 61S Powers (from SRF) 62S NE Ramp (from SRF) 63S TH 212 (from SRF) 64S Englewood (from SRF) 65S LYMLP (from SRF) 66S N54 (from SRF) 67-1S Fresh MDW Subcatch 1 (from SRF) 67-2S Fresh MDW Subcatch 2 (from SRF) 67-3S Fresh MDW Subcatch 3 (from SRF) 68S M10 10R Lake Susan Drainage 61R NERDITCH 62R L42 11.1P North Underground 11.3P North Underground 11.4P East Pond 11P Drop MHs 12P North Underground 61P Englewood Pond 65P Fresh MDW 68P East MNDOT M10 Wetland Routing Diagram for Avienda - DP 7.3 - Ultimate Prepared by Landform Professional Services, Printed 5/18/2020 HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Subcat Reach Pond Link Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 2HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Area Listing (selected nodes) Area (acres) CN Description (subcatchment-numbers) 9.130 80 >75% Grass cover, Good, HSG D (11.1S, 11.3S, 11.4S, 11oS, 12S) 9.711 98 Paved & Roofs, HSG D (11.3S) 11.478 98 Paved parking & roofs, HSG D (11.1S) 9.090 98 Paved parking, HSG D (12S, 16oS) 0.132 98 Roofs, HSG D (11.4S) 0.442 98 Water Surface, HSG D (11.4S) 17.600 87 Weighted (61S, 63S) 4.200 81 Weighted (62S) 7.800 77 Weighted (64S) 6.400 83 Weighted (65S) 1.900 94 Weighted (66S) 0.440 100 Weighted (67-1S) 1.100 71 Weighted (67-2S) 2.300 10 Weighted (67-3S) 17.000 74 Weighted (68S) 98.723 84 TOTAL AREA Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 3HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Soil Listing (selected nodes) Area (acres) Soil Group Subcatchment Numbers 0.000 HSG A 0.000 HSG B 0.000 HSG C 39.983 HSG D 11.1S, 11.3S, 11.4S, 11oS, 12S, 16oS 58.740 Other 61S, 62S, 63S, 64S, 65S, 66S, 67-1S, 67-2S, 67-3S, 68S 98.723 TOTAL AREA Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 4HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Ground Covers (selected nodes) HSG-A (acres) HSG-B (acres) HSG-C (acres) HSG-D (acres) Other (acres) Total (acres) Ground Cover Subcatchment Numbers 0.000 0.000 0.000 9.130 0.000 9.130 >75% Grass cover, Good 11.1S, 11.3S, 11.4S, 11oS, 12S 0.000 0.000 0.000 9.711 0.000 9.711 Paved & Roofs 11.3S 0.000 0.000 0.000 9.090 0.000 9.090 Paved parking 12S, 16oS 0.000 0.000 0.000 11.478 0.000 11.478 Paved parking & roofs 11.1S 0.000 0.000 0.000 0.132 0.000 0.132 Roofs 11.4S 0.000 0.000 0.000 0.442 0.000 0.442 Water Surface 11.4S 0.000 0.000 0.000 0.000 58.740 58.740 Weighted 61S, 62S, 63S, 64S, 65S, 66S, 67-1S, 67-2S, 67-3S, 68S 0.000 0.000 0.000 39.983 58.740 98.723 TOTAL AREA Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 5HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Pipe Listing (selected nodes) Line# Node Number In-Invert (feet) Out-Invert (feet) Length (feet) Slope (ft/ft) n Diam/Width (inches) Height (inches) Inside-Fill (inches) 1 62R 893.00 892.00 200.0 0.0050 0.012 24.0 0.0 0.0 2 11.1P 909.40 907.92 212.0 0.0070 0.011 18.0 0.0 0.0 3 11.3P 905.00 904.00 150.0 0.0067 0.011 18.0 0.0 0.0 4 11.4P 895.97 894.53 232.0 0.0062 0.030 54.0 0.0 0.0 5 12P 908.10 904.00 840.0 0.0049 0.011 18.0 0.0 0.0 6 61P 892.00 891.71 29.0 0.0100 0.013 42.0 0.0 0.0 7 61P 887.50 887.63 13.0 -0.0100 0.013 42.0 0.0 0.0 8 65P 892.00 892.35 35.0 -0.0100 0.012 12.0 0.0 0.0 9 65P 896.35 896.01 69.0 0.0049 0.012 33.0 0.0 0.0 10 68P 890.30 889.53 155.0 0.0050 0.013 18.0 0.0 0.0 11 68P 890.30 890.50 40.0 -0.0050 0.013 18.0 0.0 0.0 MSE 24-hr 3 1-Year A Rainfall=2.47"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 6HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Time span=0.00-360.00 hrs, dt=0.01 hrs, 36001 points Runoff by SCS TR-20 method, UH=SCS, Weighted-Q Reach routing by Dyn-Stor-Ind method - Pond routing by Dyn-Stor-Ind method Runoff Area=614,104 sf 81.42% Impervious Runoff Depth=1.99"Subcatchment 11.1S: North Tc=10.0 min CN=WQ Runoff=39.02 cfs 2.333 af Runoff Area=494,016 sf 85.62% Impervious Runoff Depth=2.04"Subcatchment 11.3S: East Tc=10.0 min CN=WQ Runoff=32.24 cfs 1.931 af Runoff Area=42,316 sf 59.09% Impervious Runoff Depth=1.68"Subcatchment 11.4S: East Pond Tc=5.0 min CN=WQ Runoff=2.84 cfs 0.136 af Runoff Area=35,675 sf 0.00% Impervious Runoff Depth=0.87"Subcatchment 11oS: From Powers Flow Length=94' Slope=0.0430 '/' Tc=10.6 min CN=80 Runoff=1.06 cfs 0.059 af Runoff Area=550,898 sf 71.03% Impervious Runoff Depth=1.84"Subcatchment 12S: Central Tc=10.0 min CN=WQ Runoff=32.66 cfs 1.943 af Runoff Area=4,669 sf 100.00% Impervious Runoff Depth=2.24"Subcatchment 16oS: East Offsite Tc=5.0 min CN=98 Runoff=0.40 cfs 0.020 af Runoff Area=9.400 ac 0.00% Impervious Runoff Depth=1.29"Subcatchment 61S: Powers (from SRF) Tc=9.0 min CN=87 Runoff=19.80 cfs 1.007 af Runoff Area=4.200 ac 0.00% Impervious Runoff Depth=0.92"Subcatchment 62S: NE Ramp (from SRF) Tc=8.0 min CN=81 Runoff=6.52 cfs 0.322 af Runoff Area=8.200 ac 0.00% Impervious Runoff Depth=1.29"Subcatchment 63S: TH 212 (from SRF) Tc=12.0 min CN=87 Runoff=15.22 cfs 0.879 af Runoff Area=7.800 ac 0.00% Impervious Runoff Depth=0.72"Subcatchment 64S: Englewood (from SRF) Tc=10.0 min CN=77 Runoff=8.39 cfs 0.469 af Runoff Area=6.400 ac 0.00% Impervious Runoff Depth=1.03"Subcatchment 65S: LYMLP (from SRF) Tc=15.0 min CN=83 Runoff=8.53 cfs 0.551 af Runoff Area=1.900 ac 0.00% Impervious Runoff Depth=1.84"Subcatchment 66S: N54 (from SRF) Tc=7.6 min CN=94 Runoff=5.76 cfs 0.291 af Runoff Area=0.440 ac 100.00% Impervious Runoff Depth=2.47"Subcatchment 67-1S: Fresh MDW Tc=7.0 min CN=100 Runoff=1.57 cfs 0.091 af Runoff Area=1.100 ac 0.00% Impervious Runoff Depth=0.48"Subcatchment 67-2S: Fresh MDW Subcatch Tc=7.0 min CN=71 Runoff=0.82 cfs 0.044 af Runoff Area=2.300 ac 0.00% Impervious Runoff Depth=0.00"Subcatchment 67-3S: Fresh MDW Subcatch Tc=83.0 min CN=10 Runoff=0.00 cfs 0.000 af Runoff Area=17.000 ac 0.00% Impervious Runoff Depth=0.59"Subcatchment 68S: M10 Tc=10.0 min CN=74 Runoff=14.34 cfs 0.838 af MSE 24-hr 3 1-Year A Rainfall=2.47"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 7HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Inflow=3.25 cfs 1.755 afReach 10R: Lake Susan Drainage Outflow=3.25 cfs 1.755 af Avg. Flow Depth=0.83' Max Vel=2.38 fps Inflow=23.05 cfs 2.763 afReach 61R: NERDITCH n=0.035 L=545.0' S=0.0055 '/' Capacity=737.08 cfs Outflow=20.76 cfs 2.763 af Avg. Flow Depth=0.85' Max Vel=5.12 fps Inflow=6.52 cfs 0.322 afReach 62R: L42 24.0" Round Pipe n=0.012 L=200.0' S=0.0050 '/' Capacity=17.33 cfs Outflow=6.48 cfs 0.322 af Peak Elev=910.65' Storage=73,834 cf Inflow=39.02 cfs 2.333 afPond 11.1P: North Underground Discarded=0.27 cfs 1.756 af Primary=0.78 cfs 0.577 af Outflow=1.05 cfs 2.333 af Peak Elev=906.16' Storage=62,052 cf Inflow=32.24 cfs 1.931 afPond 11.3P: North Underground Discarded=0.24 cfs 1.550 af Primary=0.52 cfs 0.381 af Outflow=0.76 cfs 1.931 af Peak Elev=904.10' Storage=1.288 af Inflow=2.84 cfs 1.676 afPond 11.4P: East Pond Outflow=2.24 cfs 1.676 af Inflow=2.17 cfs 1.540 afPond 11P: Drop MHs Primary=2.17 cfs 1.540 af Peak Elev=909.39' Storage=59,635 cf Inflow=32.66 cfs 1.943 afPond 12P: North Underground Discarded=0.21 cfs 1.361 af Primary=0.90 cfs 0.581 af Outflow=1.11 cfs 1.943 af Peak Elev=892.67' Storage=94,045 cf Inflow=50.20 cfs 4.433 afPond 61P: Englewood Pond Outflow=3.13 cfs 4.380 af Peak Elev=897.10' Storage=21,884 cf Inflow=14.73 cfs 0.977 afPond 65P: Fresh MDW Outflow=3.09 cfs 0.822 af Peak Elev=891.35' Storage=212,719 cf Inflow=15.38 cfs 6.041 afPond 68P: East MNDOT M10 Wetland Outflow=0.44 cfs 2.738 af Total Runoff Area = 98.723 ac Runoff Volume = 10.914 af Average Runoff Depth = 1.33" 68.30% Pervious = 67.430 ac 31.70% Impervious = 31.293 ac MSE 24-hr 3 1-Year A Rainfall=2.47"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 8HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 11.1S: North Runoff = 39.02 cfs @ 12.17 hrs, Volume= 2.333 af, Depth= 1.99" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MSE 24-hr 3 1-Year A Rainfall=2.47" Area (sf) CN Description 114,104 80 >75% Grass cover, Good, HSG D * 500,000 98 Paved parking & roofs, HSG D 614,104 Weighted Average 114,104 80 18.58% Pervious Area 500,000 98 81.42% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 10.0 Direct Entry, Subcatchment 11.1S: North Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)42 40 38 36 34 32 30 28 26 24 22 20 18 16 14 12 10 8 6 4 2 0 MSE 24-hr 3 1-Year A Rainfall=2.47" Runoff Area=614,104 sf Runoff Volume=2.333 af Runoff Depth=1.99" Tc=10.0 min CN=WQ 39.02 cfs MSE 24-hr 3 1-Year A Rainfall=2.47"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 9HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 11.3S: East Runoff = 32.24 cfs @ 12.17 hrs, Volume= 1.931 af, Depth= 2.04" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MSE 24-hr 3 1-Year A Rainfall=2.47" Area (sf) CN Description 71,016 80 >75% Grass cover, Good, HSG D * 423,000 98 Paved & Roofs, HSG D 494,016 Weighted Average 71,016 80 14.38% Pervious Area 423,000 98 85.62% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 10.0 Direct Entry, Subcatchment 11.3S: East Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)36 34 32 30 28 26 24 22 20 18 16 14 12 10 8 6 4 2 0 MSE 24-hr 3 1-Year A Rainfall=2.47" Runoff Area=494,016 sf Runoff Volume=1.931 af Runoff Depth=2.04" Tc=10.0 min CN=WQ 32.24 cfs MSE 24-hr 3 1-Year A Rainfall=2.47"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 10HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 11.4S: East Pond Runoff = 2.84 cfs @ 12.12 hrs, Volume= 0.136 af, Depth= 1.68" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MSE 24-hr 3 1-Year A Rainfall=2.47" Area (sf) CN Description 17,312 80 >75% Grass cover, Good, HSG D 19,254 98 Water Surface, HSG D 5,750 98 Roofs, HSG D 42,316 Weighted Average 17,312 80 40.91% Pervious Area 25,004 98 59.09% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 5.0 Direct Entry, Subcatchment 11.4S: East Pond Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)3 2 1 0 MSE 24-hr 3 1-Year A Rainfall=2.47" Runoff Area=42,316 sf Runoff Volume=0.136 af Runoff Depth=1.68" Tc=5.0 min CN=WQ 2.84 cfs MSE 24-hr 3 1-Year A Rainfall=2.47"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 11HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 11oS: From Powers Runoff = 1.06 cfs @ 12.19 hrs, Volume= 0.059 af, Depth= 0.87" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MSE 24-hr 3 1-Year A Rainfall=2.47" Area (sf) CN Description 35,675 80 >75% Grass cover, Good, HSG D 35,675 80 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 10.6 94 0.0430 0.15 Sheet Flow, Grass: Dense n= 0.240 P2= 2.87" Subcatchment 11oS: From Powers Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)1 0 MSE 24-hr 3 1-Year A Rainfall=2.47" Runoff Area=35,675 sf Runoff Volume=0.059 af Runoff Depth=0.87" Flow Length=94' Slope=0.0430 '/' Tc=10.6 min CN=80 1.06 cfs MSE 24-hr 3 1-Year A Rainfall=2.47"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 12HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 12S: Central Runoff = 32.66 cfs @ 12.17 hrs, Volume= 1.943 af, Depth= 1.84" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MSE 24-hr 3 1-Year A Rainfall=2.47" Area (sf) CN Description 159,598 80 >75% Grass cover, Good, HSG D 391,300 98 Paved parking, HSG D 550,898 Weighted Average 159,598 80 28.97% Pervious Area 391,300 98 71.03% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 10.0 Direct Entry, Subcatchment 12S: Central Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)36 34 32 30 28 26 24 22 20 18 16 14 12 10 8 6 4 2 0 MSE 24-hr 3 1-Year A Rainfall=2.47" Runoff Area=550,898 sf Runoff Volume=1.943 af Runoff Depth=1.84" Tc=10.0 min CN=WQ 32.66 cfs MSE 24-hr 3 1-Year A Rainfall=2.47"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 13HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 16oS: East Offsite Runoff = 0.40 cfs @ 12.12 hrs, Volume= 0.020 af, Depth= 2.24" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MSE 24-hr 3 1-Year A Rainfall=2.47" Area (sf) CN Description 4,669 98 Paved parking, HSG D 4,669 98 100.00% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 5.0 Direct Entry, Subcatchment 16oS: East Offsite Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.44 0.42 0.4 0.38 0.36 0.34 0.32 0.3 0.28 0.26 0.24 0.22 0.2 0.18 0.16 0.14 0.12 0.1 0.08 0.06 0.04 0.02 0 MSE 24-hr 3 1-Year A Rainfall=2.47" Runoff Area=4,669 sf Runoff Volume=0.020 af Runoff Depth=2.24" Tc=5.0 min CN=98 0.40 cfs MSE 24-hr 3 1-Year A Rainfall=2.47"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 14HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 61S: Powers (from SRF) Runoff = 19.80 cfs @ 12.17 hrs, Volume= 1.007 af, Depth= 1.29" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MSE 24-hr 3 1-Year A Rainfall=2.47" Area (ac) CN Description * 9.400 87 Weighted 9.400 87 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 9.0 Direct Entry, Subcatchment 61S: Powers (from SRF) Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 MSE 24-hr 3 1-Year A Rainfall=2.47" Runoff Area=9.400 ac Runoff Volume=1.007 af Runoff Depth=1.29" Tc=9.0 min CN=87 19.80 cfs MSE 24-hr 3 1-Year A Rainfall=2.47"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 15HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 62S: NE Ramp (from SRF) Runoff = 6.52 cfs @ 12.16 hrs, Volume= 0.322 af, Depth= 0.92" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MSE 24-hr 3 1-Year A Rainfall=2.47" Area (ac) CN Description * 4.200 81 Weighted 4.200 81 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 8.0 Direct Entry, Subcatchment 62S: NE Ramp (from SRF) Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)7 6 5 4 3 2 1 0 MSE 24-hr 3 1-Year A Rainfall=2.47" Runoff Area=4.200 ac Runoff Volume=0.322 af Runoff Depth=0.92" Tc=8.0 min CN=81 6.52 cfs MSE 24-hr 3 1-Year A Rainfall=2.47"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 16HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 63S: TH 212 (from SRF) Runoff = 15.22 cfs @ 12.20 hrs, Volume= 0.879 af, Depth= 1.29" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MSE 24-hr 3 1-Year A Rainfall=2.47" Area (ac) CN Description * 8.200 87 Weighted 8.200 87 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 12.0 Direct Entry, Subcatchment 63S: TH 212 (from SRF) Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 MSE 24-hr 3 1-Year A Rainfall=2.47" Runoff Area=8.200 ac Runoff Volume=0.879 af Runoff Depth=1.29" Tc=12.0 min CN=87 15.22 cfs MSE 24-hr 3 1-Year A Rainfall=2.47"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 17HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 64S: Englewood (from SRF) Runoff = 8.39 cfs @ 12.19 hrs, Volume= 0.469 af, Depth= 0.72" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MSE 24-hr 3 1-Year A Rainfall=2.47" Area (ac) CN Description * 7.800 77 Weighted 7.800 77 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 10.0 Direct Entry, Subcatchment 64S: Englewood (from SRF) Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)9 8 7 6 5 4 3 2 1 0 MSE 24-hr 3 1-Year A Rainfall=2.47" Runoff Area=7.800 ac Runoff Volume=0.469 af Runoff Depth=0.72" Tc=10.0 min CN=77 8.39 cfs MSE 24-hr 3 1-Year A Rainfall=2.47"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 18HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 65S: LYMLP (from SRF) Runoff = 8.53 cfs @ 12.24 hrs, Volume= 0.551 af, Depth= 1.03" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MSE 24-hr 3 1-Year A Rainfall=2.47" Area (ac) CN Description * 6.400 83 Weighted 6.400 83 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 15.0 Direct Entry, Subcatchment 65S: LYMLP (from SRF) Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)9 8 7 6 5 4 3 2 1 0 MSE 24-hr 3 1-Year A Rainfall=2.47" Runoff Area=6.400 ac Runoff Volume=0.551 af Runoff Depth=1.03" Tc=15.0 min CN=83 8.53 cfs MSE 24-hr 3 1-Year A Rainfall=2.47"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 19HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 66S: N54 (from SRF) Runoff = 5.76 cfs @ 12.15 hrs, Volume= 0.291 af, Depth= 1.84" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MSE 24-hr 3 1-Year A Rainfall=2.47" Area (ac) CN Description * 1.900 94 Weighted 1.900 94 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 7.6 Direct Entry, Subcatchment 66S: N54 (from SRF) Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)6 5 4 3 2 1 0 MSE 24-hr 3 1-Year A Rainfall=2.47" Runoff Area=1.900 ac Runoff Volume=0.291 af Runoff Depth=1.84" Tc=7.6 min CN=94 5.76 cfs MSE 24-hr 3 1-Year A Rainfall=2.47"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 20HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 67-1S: Fresh MDW Subcatch 1 (from SRF) Runoff = 1.57 cfs @ 12.14 hrs, Volume= 0.091 af, Depth= 2.47" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MSE 24-hr 3 1-Year A Rainfall=2.47" Area (ac) CN Description * 0.440 100 Weighted 0.440 100 100.00% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 7.0 Direct Entry, Subcatchment 67-1S: Fresh MDW Subcatch 1 (from SRF) Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)1 0 MSE 24-hr 3 1-Year A Rainfall=2.47" Runoff Area=0.440 ac Runoff Volume=0.091 af Runoff Depth=2.47" Tc=7.0 min CN=100 1.57 cfs MSE 24-hr 3 1-Year A Rainfall=2.47"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 21HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 67-2S: Fresh MDW Subcatch 2 (from SRF) Runoff = 0.82 cfs @ 12.16 hrs, Volume= 0.044 af, Depth= 0.48" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MSE 24-hr 3 1-Year A Rainfall=2.47" Area (ac) CN Description * 1.100 71 Weighted 1.100 71 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 7.0 Direct Entry, Subcatchment 67-2S: Fresh MDW Subcatch 2 (from SRF) Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.9 0.85 0.8 0.75 0.7 0.65 0.6 0.55 0.5 0.45 0.4 0.35 0.3 0.25 0.2 0.15 0.1 0.05 0 MSE 24-hr 3 1-Year A Rainfall=2.47" Runoff Area=1.100 ac Runoff Volume=0.044 af Runoff Depth=0.48" Tc=7.0 min CN=71 0.82 cfs MSE 24-hr 3 1-Year A Rainfall=2.47"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 22HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 67-3S: Fresh MDW Subcatch 3 (from SRF) [45] Hint: Runoff=Zero Runoff = 0.00 cfs @ 0.00 hrs, Volume= 0.000 af, Depth= 0.00" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MSE 24-hr 3 1-Year A Rainfall=2.47" Area (ac) CN Description * 2.300 10 Weighted 2.300 10 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 83.0 Direct Entry, Subcatchment 67-3S: Fresh MDW Subcatch 3 (from SRF) Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)1 0 MSE 24-hr 3 1-Year A Rainfall=2.47" Runoff Area=2.300 ac Runoff Volume=0.000 af Runoff Depth=0.00" Tc=83.0 min CN=10 0.00 cfs MSE 24-hr 3 1-Year A Rainfall=2.47"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 23HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 68S: M10 Runoff = 14.34 cfs @ 12.19 hrs, Volume= 0.838 af, Depth= 0.59" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MSE 24-hr 3 1-Year A Rainfall=2.47" Area (ac) CN Description * 17.000 74 Weighted 17.000 74 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 10.0 Direct Entry, Subcatchment 68S: M10 Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 MSE 24-hr 3 1-Year A Rainfall=2.47" Runoff Area=17.000 ac Runoff Volume=0.838 af Runoff Depth=0.59" Tc=10.0 min CN=74 14.34 cfs MSE 24-hr 3 1-Year A Rainfall=2.47"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 24HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Reach 10R: Lake Susan Drainage [40] Hint: Not Described (Outflow=Inflow) Inflow Area = 39.983 ac, 77.17% Impervious, Inflow Depth = 0.53" for 1-Year A event Inflow = 3.25 cfs @ 12.17 hrs, Volume= 1.755 af Outflow = 3.25 cfs @ 12.17 hrs, Volume= 1.755 af, Atten= 0%, Lag= 0.0 min Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Reach 10R: Lake Susan Drainage Inflow Outflow Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)3 2 1 0 Inflow Area=39.983 ac 3.25 cfs 3.25 cfs MSE 24-hr 3 1-Year A Rainfall=2.47"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 25HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Reach 61R: NERDITCH Inflow Area = 49.383 ac, 62.48% Impervious, Inflow Depth = 0.67" for 1-Year A event Inflow = 23.05 cfs @ 12.17 hrs, Volume= 2.763 af Outflow = 20.76 cfs @ 12.20 hrs, Volume= 2.763 af, Atten= 10%, Lag= 2.2 min Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Max. Velocity= 2.38 fps, Min. Travel Time= 3.8 min Avg. Velocity = 0.65 fps, Avg. Travel Time= 13.9 min Peak Storage= 4,748 cf @ 12.20 hrs Average Depth at Peak Storage= 0.83' Bank-Full Depth= 5.00' Flow Area= 115.0 sf, Capacity= 737.08 cfs 8.00' x 5.00' deep channel, n= 0.035 Side Slope Z-value= 3.0 '/' Top Width= 38.00' Length= 545.0' Slope= 0.0055 '/' Inlet Invert= 895.00', Outlet Invert= 892.00' ‡ Reach 61R: NERDITCH Inflow Outflow Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)24 22 20 18 16 14 12 10 8 6 4 2 0 Inflow Area=49.383 ac Avg. Flow Depth=0.83' Max Vel=2.38 fps n=0.035 L=545.0' S=0.0055 '/' Capacity=737.08 cfs 23.05 cfs 20.76 cfs MSE 24-hr 3 1-Year A Rainfall=2.47"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 26HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Reach 62R: L42 [52] Hint: Inlet/Outlet conditions not evaluated Inflow Area = 4.200 ac, 0.00% Impervious, Inflow Depth = 0.92" for 1-Year A event Inflow = 6.52 cfs @ 12.16 hrs, Volume= 0.322 af Outflow = 6.48 cfs @ 12.17 hrs, Volume= 0.322 af, Atten= 1%, Lag= 0.5 min Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Max. Velocity= 5.12 fps, Min. Travel Time= 0.7 min Avg. Velocity = 1.64 fps, Avg. Travel Time= 2.0 min Peak Storage= 253 cf @ 12.17 hrs Average Depth at Peak Storage= 0.85' Bank-Full Depth= 2.00' Flow Area= 3.1 sf, Capacity= 17.33 cfs 24.0" Round Pipe n= 0.012 Length= 200.0' Slope= 0.0050 '/' Inlet Invert= 893.00', Outlet Invert= 892.00' Reach 62R: L42 Inflow Outflow Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)7 6 5 4 3 2 1 0 Inflow Area=4.200 ac Avg. Flow Depth=0.85' Max Vel=5.12 fps 24.0" Round Pipe n=0.012 L=200.0' S=0.0050 '/' Capacity=17.33 cfs 6.52 cfs 6.48 cfs MSE 24-hr 3 1-Year A Rainfall=2.47"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 27HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Pond 11.1P: North Underground Inflow Area = 14.098 ac, 81.42% Impervious, Inflow Depth = 1.99" for 1-Year A event Inflow = 39.02 cfs @ 12.17 hrs, Volume= 2.333 af Outflow = 1.05 cfs @ 15.06 hrs, Volume= 2.333 af, Atten= 97%, Lag= 173.0 min Discarded = 0.27 cfs @ 7.51 hrs, Volume= 1.756 af Primary = 0.78 cfs @ 15.06 hrs, Volume= 0.577 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 910.65' @ 15.06 hrs Surf.Area= 191,215 sf Storage= 73,834 cf Plug-Flow detention time= 1,570.6 min calculated for 2.333 af (100% of inflow) Center-of-Mass det. time= 1,570.7 min ( 2,336.3 - 765.6 ) Volume Invert Avail.Storage Storage Description #1 909.40' 131,019 cf Custom Stage Data (Prismatic) Listed below (Recalc) 439,795 cf Overall - 3,063 cf Embedded = 436,731 cf x 30.0% Voids #2 911.70' 151,747 cf Custom Stage Data (Prismatic) Listed below (Recalc) 382,430 cf Overall - 3,063 cf Embedded = 379,367 cf x 40.0% Voids #3 909.40' 3,063 cf 8.0" Round Pipe Storage Inside #1 L= 8,776.0' #4 911.70' 3,063 cf 8.0" Round Pipe Storage Inside #2 L= 8,776.0' 288,893 cf Total Available Storage Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 909.40 191,215 0 0 911.70 191,215 439,795 439,795 Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 911.70 191,215 0 0 913.70 191,215 382,430 382,430 Device Routing Invert Outlet Devices #1 Primary 909.40'18.0" Round Culvert L= 212.0' RCP, sq.cut end projecting, Ke= 0.500 Inlet / Outlet Invert= 909.40' / 907.92' S= 0.0070 '/' Cc= 0.900 n= 0.011 Concrete pipe, straight & clean, Flow Area= 1.77 sf #2 Device 1 910.20'12.0" Vert. Infiltration Overflow C= 0.600 #3 Device 1 912.37'12.0" Vert. Filtration Overflow C= 0.600 #4 Discarded 909.40'0.060 in/hr Exfiltration over Surface area Phase-In= 0.01' Discarded OutFlow Max=0.27 cfs @ 7.51 hrs HW=909.41' (Free Discharge) 4=Exfiltration (Exfiltration Controls 0.27 cfs) Primary OutFlow Max=0.78 cfs @ 15.06 hrs HW=910.65' TW=0.00' (Dynamic Tailwater) 1=Culvert (Passes 0.78 cfs of 5.99 cfs potential flow) 2=Infiltration Overflow (Orifice Controls 0.78 cfs @ 2.28 fps) 3=Filtration Overflow ( Controls 0.00 cfs) MSE 24-hr 3 1-Year A Rainfall=2.47"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 28HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Pond 11.1P: North Underground Inflow Outflow Discarded Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)42 40 38 36 34 32 30 28 26 24 22 20 18 16 14 12 10 8 6 4 2 0 Inflow Area=14.098 ac Peak Elev=910.65' Storage=73,834 cf 39.02 cfs 1.05 cfs 0.27 cfs 0.78 cfs MSE 24-hr 3 1-Year A Rainfall=2.47"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 29HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Pond 11.3P: North Underground Inflow Area = 11.341 ac, 85.62% Impervious, Inflow Depth = 2.04" for 1-Year A event Inflow = 32.24 cfs @ 12.17 hrs, Volume= 1.931 af Outflow = 0.76 cfs @ 15.11 hrs, Volume= 1.931 af, Atten= 98%, Lag= 176.5 min Discarded = 0.24 cfs @ 7.73 hrs, Volume= 1.550 af Primary = 0.52 cfs @ 15.11 hrs, Volume= 0.381 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 906.16' @ 15.11 hrs Surf.Area= 172,601 sf Storage= 62,052 cf Plug-Flow detention time= 1,617.1 min calculated for 1.931 af (100% of inflow) Center-of-Mass det. time= 1,617.2 min ( 2,381.4 - 764.2 ) Volume Invert Avail.Storage Storage Description #1 905.00' 118,265 cf Custom Stage Data (Prismatic) Listed below (Recalc) 396,982 cf Overall - 2,765 cf Embedded = 394,217 cf x 30.0% Voids #2 907.30' 136,975 cf Custom Stage Data (Prismatic) Listed below (Recalc) 345,202 cf Overall - 2,765 cf Embedded = 342,437 cf x 40.0% Voids #3 905.00' 2,765 cf 8.0" Round Pipe Storage Inside #1 L= 7,922.0' #4 907.30' 2,765 cf 8.0" Round Pipe Storage Inside #2 L= 7,922.0' 260,770 cf Total Available Storage Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 905.00 172,601 0 0 907.30 172,601 396,982 396,982 Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 907.30 172,601 0 0 909.30 172,601 345,202 345,202 Device Routing Invert Outlet Devices #1 Primary 905.00'18.0" Round Culvert L= 150.0' RCP, sq.cut end projecting, Ke= 0.500 Inlet / Outlet Invert= 905.00' / 904.00' S= 0.0067 '/' Cc= 0.900 n= 0.011 Concrete pipe, straight & clean, Flow Area= 1.77 sf #2 Device 1 905.80'12.0" Vert. Infiltration Overflow C= 0.600 #3 Device 1 907.97'12.0" Vert. Filtration Overflow C= 0.600 #4 Discarded 905.00'0.060 in/hr Exfiltration over Surface area Phase-In= 0.01' Discarded OutFlow Max=0.24 cfs @ 7.73 hrs HW=905.01' (Free Discharge) 4=Exfiltration (Exfiltration Controls 0.24 cfs) Primary OutFlow Max=0.52 cfs @ 15.11 hrs HW=906.16' TW=0.00' (Dynamic Tailwater) 1=Culvert (Passes 0.52 cfs of 5.38 cfs potential flow) 2=Infiltration Overflow (Orifice Controls 0.52 cfs @ 2.05 fps) 3=Filtration Overflow ( Controls 0.00 cfs) MSE 24-hr 3 1-Year A Rainfall=2.47"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 30HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Pond 11.3P: North Underground Inflow Outflow Discarded Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)36 34 32 30 28 26 24 22 20 18 16 14 12 10 8 6 4 2 0 Inflow Area=11.341 ac Peak Elev=906.16' Storage=62,052 cf 32.24 cfs 0.76 cfs 0.24 cfs 0.52 cfs MSE 24-hr 3 1-Year A Rainfall=2.47"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 31HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Pond 11.4P: East Pond Inflow Area = 39.057 ac, 78.72% Impervious, Inflow Depth = 0.51" for 1-Year A event Inflow = 2.84 cfs @ 12.12 hrs, Volume= 1.676 af Outflow = 2.24 cfs @ 14.78 hrs, Volume= 1.676 af, Atten= 21%, Lag= 159.5 min Primary = 2.24 cfs @ 14.78 hrs, Volume= 1.676 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Starting Elev= 904.00' Surf.Area= 0.280 ac Storage= 1.260 af Peak Elev= 904.10' @ 14.78 hrs Surf.Area= 0.285 ac Storage= 1.288 af (0.028 af above start) Plug-Flow detention time= 648.2 min calculated for 0.416 af (25% of inflow) Center-of-Mass det. time= 11.3 min ( 1,075.4 - 1,064.0 ) Volume Invert Avail.Storage Storage Description #1 895.00' 2.829 af Custom Stage Data (Prismatic) Listed below (Recalc) Elevation Surf.Area Inc.Store Cum.Store (feet) (acres) (acre-feet) (acre-feet) 895.00 0.000 0.000 0.000 904.00 0.280 1.260 1.260 906.00 0.391 0.671 1.931 908.00 0.507 0.898 2.829 Device Routing Invert Outlet Devices #1 Primary 895.97'54.0" Round Culvert L= 232.0' RCP, square edge headwall, Ke= 0.500 Inlet / Outlet Invert= 895.97' / 894.53' S= 0.0062 '/' Cc= 0.900 n= 0.030 Corrugated metal, Flow Area= 15.90 sf #2 Device 1 904.00'84.0" Horiz. Orifice/Grate C= 0.600 Limited to weir flow at low heads Primary OutFlow Max=2.24 cfs @ 14.78 hrs HW=904.10' TW=0.00' (Dynamic Tailwater) 1=Culvert (Passes 2.24 cfs of 110.82 cfs potential flow) 2=Orifice/Grate (Weir Controls 2.24 cfs @ 1.03 fps) MSE 24-hr 3 1-Year A Rainfall=2.47"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 32HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Pond 11.4P: East Pond Inflow Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)3 2 1 0 Inflow Area=39.057 ac Peak Elev=904.10' Storage=1.288 af 2.84 cfs 2.24 cfs MSE 24-hr 3 1-Year A Rainfall=2.47"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 33HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Pond 11P: Drop MHs [40] Hint: Not Described (Outflow=Inflow) Inflow Area = 38.086 ac, 79.22% Impervious, Inflow Depth = 0.49" for 1-Year A event Inflow = 2.17 cfs @ 14.80 hrs, Volume= 1.540 af Primary = 2.17 cfs @ 14.80 hrs, Volume= 1.540 af, Atten= 0%, Lag= 0.0 min Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Pond 11P: Drop MHs Inflow Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)2 1 0 Inflow Area=38.086 ac 2.17 cfs 2.17 cfs MSE 24-hr 3 1-Year A Rainfall=2.47"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 34HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Pond 12P: North Underground Inflow Area = 12.647 ac, 71.03% Impervious, Inflow Depth = 1.84" for 1-Year A event Inflow = 32.66 cfs @ 12.17 hrs, Volume= 1.943 af Outflow = 1.11 cfs @ 13.78 hrs, Volume= 1.943 af, Atten= 97%, Lag= 96.5 min Discarded = 0.21 cfs @ 7.52 hrs, Volume= 1.361 af Primary = 0.90 cfs @ 13.78 hrs, Volume= 0.581 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 909.39' @ 13.78 hrs Surf.Area= 150,233 sf Storage= 59,635 cf Plug-Flow detention time= 1,449.0 min calculated for 1.943 af (100% of inflow) Center-of-Mass det. time= 1,449.1 min ( 2,218.5 - 769.4 ) Volume Invert Avail.Storage Storage Description #1 908.10' 102,939 cf Custom Stage Data (Prismatic) Listed below (Recalc) 345,536 cf Overall - 2,407 cf Embedded = 343,129 cf x 30.0% Voids #2 910.40' 119,224 cf Custom Stage Data (Prismatic) Listed below (Recalc) 300,466 cf Overall - 2,407 cf Embedded = 298,059 cf x 40.0% Voids #3 908.10' 2,407 cf 8.0" Round Pipe Storage Inside #1 L= 6,895.0' #4 910.40' 2,407 cf 8.0" Round Pipe Storage Inside #2 L= 6,895.0' 226,976 cf Total Available Storage Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 908.10 150,233 0 0 910.40 150,233 345,536 345,536 Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 910.40 150,233 0 0 912.40 150,233 300,466 300,466 Device Routing Invert Outlet Devices #1 Primary 908.10'18.0" Round Culvert L= 840.0' RCP, sq.cut end projecting, Ke= 0.500 Inlet / Outlet Invert= 908.10' / 904.00' S= 0.0049 '/' Cc= 0.900 n= 0.011 Concrete pipe, straight & clean, Flow Area= 1.77 sf #2 Device 1 908.90'12.0" Vert. Infiltration Overflow C= 0.600 #3 Device 1 911.07'12.0" Vert. Filtration Overflow C= 0.600 #4 Discarded 908.10'0.060 in/hr Exfiltration over Surface area Phase-In= 0.01' Discarded OutFlow Max=0.21 cfs @ 7.52 hrs HW=908.11' (Free Discharge) 4=Exfiltration (Exfiltration Controls 0.21 cfs) Primary OutFlow Max=0.90 cfs @ 13.78 hrs HW=909.39' TW=0.00' (Dynamic Tailwater) 1=Culvert (Passes 0.90 cfs of 6.21 cfs potential flow) 2=Infiltration Overflow (Orifice Controls 0.90 cfs @ 2.37 fps) 3=Filtration Overflow ( Controls 0.00 cfs) MSE 24-hr 3 1-Year A Rainfall=2.47"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 35HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Pond 12P: North Underground Inflow Outflow Discarded Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)36 34 32 30 28 26 24 22 20 18 16 14 12 10 8 6 4 2 0 Inflow Area=12.647 ac Peak Elev=909.39' Storage=59,635 cf 32.66 cfs 1.11 cfs 0.21 cfs 0.90 cfs MSE 24-hr 3 1-Year A Rainfall=2.47"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 36HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Pond 61P: Englewood Pond [62] Hint: Exceeded Reach 61R OUTLET depth by 0.44' @ 18.18 hrs [62] Hint: Exceeded Reach 62R OUTLET depth by 0.55' @ 16.67 hrs Inflow Area = 69.583 ac, 44.34% Impervious, Inflow Depth = 0.76" for 1-Year A event Inflow = 50.20 cfs @ 12.19 hrs, Volume= 4.433 af Outflow = 3.13 cfs @ 15.88 hrs, Volume= 4.380 af, Atten= 94%, Lag= 221.4 min Primary = 3.13 cfs @ 15.88 hrs, Volume= 4.380 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 892.67' @ 15.88 hrs Surf.Area= 143,624 sf Storage= 94,045 cf Plug-Flow detention time= 913.0 min calculated for 4.380 af (99% of inflow) Center-of-Mass det. time= 903.2 min ( 1,822.4 - 919.1 ) Volume Invert Avail.Storage Storage Description #1 892.00' 1,031,055 cf Custom Stage Data (Prismatic) Listed below (Recalc) Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 892.00 136,580 0 0 895.00 168,060 456,960 456,960 898.00 214,670 574,095 1,031,055 Device Routing Invert Outlet Devices #1 Primary 892.00'42.0" Round Culvert L= 29.0' RCP, square edge headwall, Ke= 0.500 Inlet / Outlet Invert= 892.00' / 891.71' S= 0.0100 '/' Cc= 0.900 n= 0.013 Concrete pipe, straight & clean, Flow Area= 9.62 sf #2 Device 1 887.63'42.0" Round Culvert L= 13.0' RCP, end-section conforming to fill, Ke= 0.500 Inlet / Outlet Invert= 887.50' / 887.63' S= -0.0100 '/' Cc= 0.900 n= 0.013 Concrete pipe, straight & clean, Flow Area= 9.62 sf Primary OutFlow Max=3.13 cfs @ 15.88 hrs HW=892.67' TW=890.74' (Dynamic Tailwater) 1=Culvert (Barrel Controls 3.13 cfs @ 3.68 fps) 2=Culvert (Passes 3.13 cfs of 37.95 cfs potential flow) MSE 24-hr 3 1-Year A Rainfall=2.47"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 37HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Pond 61P: Englewood Pond Inflow Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)55 50 45 40 35 30 25 20 15 10 5 0 Inflow Area=69.583 ac Peak Elev=892.67' Storage=94,045 cf 50.20 cfs 3.13 cfs MSE 24-hr 3 1-Year A Rainfall=2.47"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 38HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Pond 65P: Fresh MDW Inflow Area = 12.140 ac, 3.62% Impervious, Inflow Depth = 0.97" for 1-Year A event Inflow = 14.73 cfs @ 12.17 hrs, Volume= 0.977 af Outflow = 3.09 cfs @ 12.66 hrs, Volume= 0.822 af, Atten= 79%, Lag= 29.2 min Primary = 3.09 cfs @ 12.66 hrs, Volume= 0.822 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 897.10' @ 12.66 hrs Surf.Area= 21,208 sf Storage= 21,884 cf Plug-Flow detention time= 320.9 min calculated for 0.822 af (84% of inflow) Center-of-Mass det. time= 262.6 min ( 1,067.1 - 804.5 ) Volume Invert Avail.Storage Storage Description #1 896.00' 123,320 cf Custom Stage Data (Prismatic) Listed below (Recalc) Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 896.00 18,540 0 0 900.00 28,230 93,540 93,540 901.00 31,330 29,780 123,320 Device Routing Invert Outlet Devices #1 Primary 892.35'12.0" Round Culvert L= 35.0' RCP, square edge headwall, Ke= 0.500 Inlet / Outlet Invert= 892.00' / 892.35' S= -0.0100 '/' Cc= 0.900 n= 0.012, Flow Area= 0.79 sf #2 Device 1 896.35'33.0" Round Culvert L= 69.0' RCP, end-section conforming to fill, Ke= 0.500 Inlet / Outlet Invert= 896.35' / 896.01' S= 0.0049 '/' Cc= 0.900 n= 0.012 Concrete pipe, finished, Flow Area= 5.94 sf Primary OutFlow Max=3.09 cfs @ 12.66 hrs HW=897.10' TW=890.28' (Dynamic Tailwater) 1=Culvert (Passes 3.09 cfs of 7.80 cfs potential flow) 2=Culvert (Barrel Controls 3.09 cfs @ 3.53 fps) MSE 24-hr 3 1-Year A Rainfall=2.47"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 39HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Pond 65P: Fresh MDW Inflow Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 Inflow Area=12.140 ac Peak Elev=897.10' Storage=21,884 cf 14.73 cfs 3.09 cfs MSE 24-hr 3 1-Year A Rainfall=2.47"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 40HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Pond 68P: East MNDOT M10 Wetland Inflow Area = 98.723 ac, 31.70% Impervious, Inflow Depth > 0.73" for 1-Year A event Inflow = 15.38 cfs @ 12.19 hrs, Volume= 6.041 af Outflow = 0.44 cfs @ 37.47 hrs, Volume= 2.738 af, Atten= 97%, Lag= 1,516.5 min Primary = 0.44 cfs @ 37.47 hrs, Volume= 2.738 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 891.35' @ 37.47 hrs Surf.Area= 248,729 sf Storage= 212,719 cf Plug-Flow detention time= 4,688.8 min calculated for 2.738 af (45% of inflow) Center-of-Mass det. time= 3,976.5 min ( 5,560.6 - 1,584.1 ) Volume Invert Avail.Storage Storage Description #1 890.00' 1,574,445 cf Custom Stage Data (Prismatic) Listed below (Recalc) Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 890.00 68,660 0 0 891.00 198,790 133,725 133,725 892.00 340,250 269,520 403,245 895.00 440,550 1,171,200 1,574,445 Device Routing Invert Outlet Devices #1 Primary 890.30'18.0" Round Culvert L= 155.0' RCP, square edge headwall, Ke= 0.500 Inlet / Outlet Invert= 890.30' / 889.53' S= 0.0050 '/' Cc= 0.900 n= 0.013 Concrete pipe, straight & clean, Flow Area= 1.77 sf #2 Device 1 891.00'10.0" Vert. Orifice/Grate C= 0.600 #3 Device 2 890.50'18.0" Round Culvert L= 40.0' RCP, end-section conforming to fill, Ke= 0.500 Inlet / Outlet Invert= 890.30' / 890.50' S= -0.0050 '/' Cc= 0.900 n= 0.013 Concrete pipe, straight & clean, Flow Area= 1.77 sf Primary OutFlow Max=0.44 cfs @ 37.47 hrs HW=891.35' (Free Discharge) 1=Culvert (Passes 0.44 cfs of 3.75 cfs potential flow) 2=Orifice/Grate (Orifice Controls 0.44 cfs @ 2.02 fps) 3=Culvert (Passes 0.44 cfs of 2.62 cfs potential flow) MSE 24-hr 3 1-Year A Rainfall=2.47"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 41HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Pond 68P: East MNDOT M10 Wetland Inflow Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 Inflow Area=98.723 ac Peak Elev=891.35' Storage=212,719 cf 15.38 cfs 0.44 cfs NOAA 24-hr A 1.10-In Equiv Rainfall=1.32"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 42HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Time span=0.00-360.00 hrs, dt=0.01 hrs, 36001 points Runoff by SCS TR-20 method, UH=SCS, Weighted-Q Reach routing by Dyn-Stor-Ind method - Pond routing by Dyn-Stor-Ind method Runoff Area=614,104 sf 81.42% Impervious Runoff Depth=0.94"Subcatchment 11.1S: North Tc=10.0 min CN=WQ Runoff=17.95 cfs 1.099 af Runoff Area=494,016 sf 85.62% Impervious Runoff Depth=0.97"Subcatchment 11.3S: East Tc=10.0 min CN=WQ Runoff=15.06 cfs 0.920 af Runoff Area=42,316 sf 59.09% Impervious Runoff Depth=0.73"Subcatchment 11.4S: East Pond Tc=5.0 min CN=WQ Runoff=1.17 cfs 0.059 af Runoff Area=35,675 sf 0.00% Impervious Runoff Depth=0.20"Subcatchment 11oS: From Powers Flow Length=94' Slope=0.0430 '/' Tc=10.6 min CN=80 Runoff=0.18 cfs 0.014 af Runoff Area=550,898 sf 71.03% Impervious Runoff Depth=0.84"Subcatchment 12S: Central Tc=10.0 min CN=WQ Runoff=14.39 cfs 0.888 af Runoff Area=4,669 sf 100.00% Impervious Runoff Depth=1.10"Subcatchment 16oS: East Offsite Tc=5.0 min CN=98 Runoff=0.20 cfs 0.010 af Runoff Area=9.400 ac 0.00% Impervious Runoff Depth=0.41"Subcatchment 61S: Powers (from SRF) Tc=9.0 min CN=87 Runoff=5.89 cfs 0.325 af Runoff Area=4.200 ac 0.00% Impervious Runoff Depth=0.23"Subcatchment 62S: NE Ramp (from SRF) Tc=8.0 min CN=81 Runoff=1.26 cfs 0.079 af Runoff Area=8.200 ac 0.00% Impervious Runoff Depth=0.41"Subcatchment 63S: TH 212 (from SRF) Tc=12.0 min CN=87 Runoff=4.50 cfs 0.283 af Runoff Area=7.800 ac 0.00% Impervious Runoff Depth=0.14"Subcatchment 64S: Englewood (from SRF) Tc=10.0 min CN=77 Runoff=0.93 cfs 0.091 af Runoff Area=6.400 ac 0.00% Impervious Runoff Depth=0.28"Subcatchment 65S: LYMLP (from SRF) Tc=15.0 min CN=83 Runoff=1.93 cfs 0.149 af Runoff Area=1.900 ac 0.00% Impervious Runoff Depth=0.78"Subcatchment 66S: N54 (from SRF) Tc=7.6 min CN=94 Runoff=2.40 cfs 0.123 af Runoff Area=0.440 ac 100.00% Impervious Runoff Depth=1.32"Subcatchment 67-1S: Fresh MDW Tc=7.0 min CN=100 Runoff=0.79 cfs 0.048 af Runoff Area=1.100 ac 0.00% Impervious Runoff Depth=0.06"Subcatchment 67-2S: Fresh MDW Subcatch Tc=7.0 min CN=71 Runoff=0.02 cfs 0.005 af Runoff Area=2.300 ac 0.00% Impervious Runoff Depth=0.00"Subcatchment 67-3S: Fresh MDW Subcatch Tc=83.0 min CN=10 Runoff=0.00 cfs 0.000 af Runoff Area=17.000 ac 0.00% Impervious Runoff Depth=0.09"Subcatchment 68S: M10 Tc=10.0 min CN=74 Runoff=0.84 cfs 0.131 af NOAA 24-hr A 1.10-In Equiv Rainfall=1.32"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 43HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Inflow=1.00 cfs 0.083 afReach 10R: Lake Susan Drainage Outflow=1.00 cfs 0.083 af Avg. Flow Depth=0.40' Max Vel=1.56 fps Inflow=6.89 cfs 0.408 afReach 61R: NERDITCH n=0.035 L=545.0' S=0.0055 '/' Capacity=737.08 cfs Outflow=5.71 cfs 0.408 af Avg. Flow Depth=0.36' Max Vel=3.20 fps Inflow=1.26 cfs 0.079 afReach 62R: L42 24.0" Round Pipe n=0.012 L=200.0' S=0.0050 '/' Capacity=17.33 cfs Outflow=1.24 cfs 0.079 af Peak Elev=909.98' Storage=35,455 cf Inflow=17.95 cfs 1.099 afPond 11.1P: North Underground Discarded=0.27 cfs 1.099 af Primary=0.00 cfs 0.000 af Outflow=0.27 cfs 1.099 af Peak Elev=905.53' Storage=29,292 cf Inflow=15.06 cfs 0.920 afPond 11.3P: North Underground Discarded=0.24 cfs 0.920 af Primary=0.00 cfs 0.000 af Outflow=0.24 cfs 0.920 af Peak Elev=904.05' Storage=1.273 af Inflow=1.17 cfs 0.059 afPond 11.4P: East Pond Outflow=0.71 cfs 0.059 af Inflow=0.00 cfs 0.000 afPond 11P: Drop MHs Primary=0.00 cfs 0.000 af Peak Elev=908.70' Storage=28,692 cf Inflow=14.39 cfs 0.888 afPond 12P: North Underground Discarded=0.21 cfs 0.888 af Primary=0.00 cfs 0.000 af Outflow=0.21 cfs 0.888 af Peak Elev=892.20' Storage=27,500 cf Inflow=12.24 cfs 0.862 afPond 61P: Englewood Pond Outflow=0.31 cfs 0.812 af Peak Elev=896.53' Storage=10,174 cf Inflow=4.39 cfs 0.326 afPond 65P: Fresh MDW Outflow=0.18 cfs 0.172 af Peak Elev=890.48' Storage=48,531 cf Inflow=0.89 cfs 1.114 afPond 68P: East MNDOT M10 Wetland Outflow=0.00 cfs 0.000 af Total Runoff Area = 98.723 ac Runoff Volume = 4.226 af Average Runoff Depth = 0.51" 68.30% Pervious = 67.430 ac 31.70% Impervious = 31.293 ac NOAA 24-hr A 1.10-In Equiv Rainfall=1.32"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 44HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 11.1S: North Runoff = 17.95 cfs @ 12.17 hrs, Volume= 1.099 af, Depth= 0.94" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs NOAA 24-hr A 1.10-In Equiv Rainfall=1.32" Area (sf) CN Description 114,104 80 >75% Grass cover, Good, HSG D * 500,000 98 Paved parking & roofs, HSG D 614,104 Weighted Average 114,104 80 18.58% Pervious Area 500,000 98 81.42% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 10.0 Direct Entry, Subcatchment 11.1S: North Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 NOAA 24-hr A 1.10-In Equiv Rainfall=1.32" Runoff Area=614,104 sf Runoff Volume=1.099 af Runoff Depth=0.94" Tc=10.0 min CN=WQ 17.95 cfs NOAA 24-hr A 1.10-In Equiv Rainfall=1.32"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 45HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 11.3S: East Runoff = 15.06 cfs @ 12.17 hrs, Volume= 0.920 af, Depth= 0.97" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs NOAA 24-hr A 1.10-In Equiv Rainfall=1.32" Area (sf) CN Description 71,016 80 >75% Grass cover, Good, HSG D * 423,000 98 Paved & Roofs, HSG D 494,016 Weighted Average 71,016 80 14.38% Pervious Area 423,000 98 85.62% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 10.0 Direct Entry, Subcatchment 11.3S: East Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 NOAA 24-hr A 1.10-In Equiv Rainfall=1.32" Runoff Area=494,016 sf Runoff Volume=0.920 af Runoff Depth=0.97" Tc=10.0 min CN=WQ 15.06 cfs NOAA 24-hr A 1.10-In Equiv Rainfall=1.32"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 46HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 11.4S: East Pond Runoff = 1.17 cfs @ 12.12 hrs, Volume= 0.059 af, Depth= 0.73" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs NOAA 24-hr A 1.10-In Equiv Rainfall=1.32" Area (sf) CN Description 17,312 80 >75% Grass cover, Good, HSG D 19,254 98 Water Surface, HSG D 5,750 98 Roofs, HSG D 42,316 Weighted Average 17,312 80 40.91% Pervious Area 25,004 98 59.09% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 5.0 Direct Entry, Subcatchment 11.4S: East Pond Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)1 0 NOAA 24-hr A 1.10-In Equiv Rainfall=1.32" Runoff Area=42,316 sf Runoff Volume=0.059 af Runoff Depth=0.73" Tc=5.0 min CN=WQ 1.17 cfs NOAA 24-hr A 1.10-In Equiv Rainfall=1.32"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 47HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 11oS: From Powers Runoff = 0.18 cfs @ 12.21 hrs, Volume= 0.014 af, Depth= 0.20" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs NOAA 24-hr A 1.10-In Equiv Rainfall=1.32" Area (sf) CN Description 35,675 80 >75% Grass cover, Good, HSG D 35,675 80 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 10.6 94 0.0430 0.15 Sheet Flow, Grass: Dense n= 0.240 P2= 2.87" Subcatchment 11oS: From Powers Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.2 0.19 0.18 0.17 0.16 0.15 0.14 0.13 0.12 0.11 0.1 0.09 0.08 0.07 0.06 0.05 0.04 0.03 0.02 0.01 0 NOAA 24-hr A 1.10-In Equiv Rainfall=1.32" Runoff Area=35,675 sf Runoff Volume=0.014 af Runoff Depth=0.20" Flow Length=94' Slope=0.0430 '/' Tc=10.6 min CN=80 0.18 cfs NOAA 24-hr A 1.10-In Equiv Rainfall=1.32"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 48HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 12S: Central Runoff = 14.39 cfs @ 12.17 hrs, Volume= 0.888 af, Depth= 0.84" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs NOAA 24-hr A 1.10-In Equiv Rainfall=1.32" Area (sf) CN Description 159,598 80 >75% Grass cover, Good, HSG D 391,300 98 Paved parking, HSG D 550,898 Weighted Average 159,598 80 28.97% Pervious Area 391,300 98 71.03% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 10.0 Direct Entry, Subcatchment 12S: Central Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 NOAA 24-hr A 1.10-In Equiv Rainfall=1.32" Runoff Area=550,898 sf Runoff Volume=0.888 af Runoff Depth=0.84" Tc=10.0 min CN=WQ 14.39 cfs NOAA 24-hr A 1.10-In Equiv Rainfall=1.32"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 49HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 16oS: East Offsite Runoff = 0.20 cfs @ 12.12 hrs, Volume= 0.010 af, Depth= 1.10" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs NOAA 24-hr A 1.10-In Equiv Rainfall=1.32" Area (sf) CN Description 4,669 98 Paved parking, HSG D 4,669 98 100.00% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 5.0 Direct Entry, Subcatchment 16oS: East Offsite Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.22 0.21 0.2 0.19 0.18 0.17 0.16 0.15 0.14 0.13 0.12 0.11 0.1 0.09 0.08 0.07 0.06 0.05 0.04 0.03 0.02 0.01 0 NOAA 24-hr A 1.10-In Equiv Rainfall=1.32" Runoff Area=4,669 sf Runoff Volume=0.010 af Runoff Depth=1.10" Tc=5.0 min CN=98 0.20 cfs NOAA 24-hr A 1.10-In Equiv Rainfall=1.32"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 50HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 61S: Powers (from SRF) Runoff = 5.89 cfs @ 12.17 hrs, Volume= 0.325 af, Depth= 0.41" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs NOAA 24-hr A 1.10-In Equiv Rainfall=1.32" Area (ac) CN Description * 9.400 87 Weighted 9.400 87 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 9.0 Direct Entry, Subcatchment 61S: Powers (from SRF) Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)6 5 4 3 2 1 0 NOAA 24-hr A 1.10-In Equiv Rainfall=1.32" Runoff Area=9.400 ac Runoff Volume=0.325 af Runoff Depth=0.41" Tc=9.0 min CN=87 5.89 cfs NOAA 24-hr A 1.10-In Equiv Rainfall=1.32"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 51HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 62S: NE Ramp (from SRF) Runoff = 1.26 cfs @ 12.17 hrs, Volume= 0.079 af, Depth= 0.23" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs NOAA 24-hr A 1.10-In Equiv Rainfall=1.32" Area (ac) CN Description * 4.200 81 Weighted 4.200 81 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 8.0 Direct Entry, Subcatchment 62S: NE Ramp (from SRF) Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)1 0 NOAA 24-hr A 1.10-In Equiv Rainfall=1.32" Runoff Area=4.200 ac Runoff Volume=0.079 af Runoff Depth=0.23" Tc=8.0 min CN=81 1.26 cfs NOAA 24-hr A 1.10-In Equiv Rainfall=1.32"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 52HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 63S: TH 212 (from SRF) Runoff = 4.50 cfs @ 12.21 hrs, Volume= 0.283 af, Depth= 0.41" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs NOAA 24-hr A 1.10-In Equiv Rainfall=1.32" Area (ac) CN Description * 8.200 87 Weighted 8.200 87 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 12.0 Direct Entry, Subcatchment 63S: TH 212 (from SRF) Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)5 4 3 2 1 0 NOAA 24-hr A 1.10-In Equiv Rainfall=1.32" Runoff Area=8.200 ac Runoff Volume=0.283 af Runoff Depth=0.41" Tc=12.0 min CN=87 4.50 cfs NOAA 24-hr A 1.10-In Equiv Rainfall=1.32"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 53HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 64S: Englewood (from SRF) Runoff = 0.93 cfs @ 12.23 hrs, Volume= 0.091 af, Depth= 0.14" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs NOAA 24-hr A 1.10-In Equiv Rainfall=1.32" Area (ac) CN Description * 7.800 77 Weighted 7.800 77 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 10.0 Direct Entry, Subcatchment 64S: Englewood (from SRF) Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)1 0 NOAA 24-hr A 1.10-In Equiv Rainfall=1.32" Runoff Area=7.800 ac Runoff Volume=0.091 af Runoff Depth=0.14" Tc=10.0 min CN=77 0.93 cfs NOAA 24-hr A 1.10-In Equiv Rainfall=1.32"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 54HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 65S: LYMLP (from SRF) Runoff = 1.93 cfs @ 12.26 hrs, Volume= 0.149 af, Depth= 0.28" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs NOAA 24-hr A 1.10-In Equiv Rainfall=1.32" Area (ac) CN Description * 6.400 83 Weighted 6.400 83 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 15.0 Direct Entry, Subcatchment 65S: LYMLP (from SRF) Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)2 1 0 NOAA 24-hr A 1.10-In Equiv Rainfall=1.32" Runoff Area=6.400 ac Runoff Volume=0.149 af Runoff Depth=0.28" Tc=15.0 min CN=83 1.93 cfs NOAA 24-hr A 1.10-In Equiv Rainfall=1.32"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 55HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 66S: N54 (from SRF) Runoff = 2.40 cfs @ 12.15 hrs, Volume= 0.123 af, Depth= 0.78" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs NOAA 24-hr A 1.10-In Equiv Rainfall=1.32" Area (ac) CN Description * 1.900 94 Weighted 1.900 94 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 7.6 Direct Entry, Subcatchment 66S: N54 (from SRF) Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)2 1 0 NOAA 24-hr A 1.10-In Equiv Rainfall=1.32" Runoff Area=1.900 ac Runoff Volume=0.123 af Runoff Depth=0.78" Tc=7.6 min CN=94 2.40 cfs NOAA 24-hr A 1.10-In Equiv Rainfall=1.32"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 56HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 67-1S: Fresh MDW Subcatch 1 (from SRF) Runoff = 0.79 cfs @ 12.14 hrs, Volume= 0.048 af, Depth= 1.32" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs NOAA 24-hr A 1.10-In Equiv Rainfall=1.32" Area (ac) CN Description * 0.440 100 Weighted 0.440 100 100.00% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 7.0 Direct Entry, Subcatchment 67-1S: Fresh MDW Subcatch 1 (from SRF) Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.85 0.8 0.75 0.7 0.65 0.6 0.55 0.5 0.45 0.4 0.35 0.3 0.25 0.2 0.15 0.1 0.05 0 NOAA 24-hr A 1.10-In Equiv Rainfall=1.32" Runoff Area=0.440 ac Runoff Volume=0.048 af Runoff Depth=1.32" Tc=7.0 min CN=100 0.79 cfs NOAA 24-hr A 1.10-In Equiv Rainfall=1.32"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 57HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 67-2S: Fresh MDW Subcatch 2 (from SRF) Runoff = 0.02 cfs @ 12.54 hrs, Volume= 0.005 af, Depth= 0.06" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs NOAA 24-hr A 1.10-In Equiv Rainfall=1.32" Area (ac) CN Description * 1.100 71 Weighted 1.100 71 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 7.0 Direct Entry, Subcatchment 67-2S: Fresh MDW Subcatch 2 (from SRF) Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.026 0.025 0.024 0.023 0.022 0.021 0.02 0.019 0.018 0.017 0.016 0.015 0.014 0.013 0.012 0.011 0.01 0.009 0.008 0.007 0.006 0.005 0.004 0.003 0.002 0.001 0 NOAA 24-hr A 1.10-In Equiv Rainfall=1.32" Runoff Area=1.100 ac Runoff Volume=0.005 af Runoff Depth=0.06" Tc=7.0 min CN=71 0.02 cfs NOAA 24-hr A 1.10-In Equiv Rainfall=1.32"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 58HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 67-3S: Fresh MDW Subcatch 3 (from SRF) [45] Hint: Runoff=Zero Runoff = 0.00 cfs @ 0.00 hrs, Volume= 0.000 af, Depth= 0.00" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs NOAA 24-hr A 1.10-In Equiv Rainfall=1.32" Area (ac) CN Description * 2.300 10 Weighted 2.300 10 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 83.0 Direct Entry, Subcatchment 67-3S: Fresh MDW Subcatch 3 (from SRF) Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)1 0 NOAA 24-hr A 1.10-In Equiv Rainfall=1.32" Runoff Area=2.300 ac Runoff Volume=0.000 af Runoff Depth=0.00" Tc=83.0 min CN=10 0.00 cfs NOAA 24-hr A 1.10-In Equiv Rainfall=1.32"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 59HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 68S: M10 Runoff = 0.84 cfs @ 12.32 hrs, Volume= 0.131 af, Depth= 0.09" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs NOAA 24-hr A 1.10-In Equiv Rainfall=1.32" Area (ac) CN Description * 17.000 74 Weighted 17.000 74 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 10.0 Direct Entry, Subcatchment 68S: M10 Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.9 0.85 0.8 0.75 0.7 0.65 0.6 0.55 0.5 0.45 0.4 0.35 0.3 0.25 0.2 0.15 0.1 0.05 0 NOAA 24-hr A 1.10-In Equiv Rainfall=1.32" Runoff Area=17.000 ac Runoff Volume=0.131 af Runoff Depth=0.09" Tc=10.0 min CN=74 0.84 cfs NOAA 24-hr A 1.10-In Equiv Rainfall=1.32"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 60HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Reach 10R: Lake Susan Drainage [40] Hint: Not Described (Outflow=Inflow) Inflow Area = 39.983 ac, 77.17% Impervious, Inflow Depth = 0.02" for 1.10-In Equiv event Inflow = 1.00 cfs @ 12.17 hrs, Volume= 0.083 af Outflow = 1.00 cfs @ 12.17 hrs, Volume= 0.083 af, Atten= 0%, Lag= 0.0 min Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Reach 10R: Lake Susan Drainage Inflow Outflow Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)1 0 Inflow Area=39.983 ac 1.00 cfs 1.00 cfs NOAA 24-hr A 1.10-In Equiv Rainfall=1.32"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 61HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Reach 61R: NERDITCH Inflow Area = 49.383 ac, 62.48% Impervious, Inflow Depth = 0.10" for 1.10-In Equiv event Inflow = 6.89 cfs @ 12.17 hrs, Volume= 0.408 af Outflow = 5.71 cfs @ 12.23 hrs, Volume= 0.408 af, Atten= 17%, Lag= 3.5 min Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Max. Velocity= 1.56 fps, Min. Travel Time= 5.8 min Avg. Velocity = 0.47 fps, Avg. Travel Time= 19.5 min Peak Storage= 1,996 cf @ 12.23 hrs Average Depth at Peak Storage= 0.40' Bank-Full Depth= 5.00' Flow Area= 115.0 sf, Capacity= 737.08 cfs 8.00' x 5.00' deep channel, n= 0.035 Side Slope Z-value= 3.0 '/' Top Width= 38.00' Length= 545.0' Slope= 0.0055 '/' Inlet Invert= 895.00', Outlet Invert= 892.00' ‡ Reach 61R: NERDITCH Inflow Outflow Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)7 6 5 4 3 2 1 0 Inflow Area=49.383 ac Avg. Flow Depth=0.40' Max Vel=1.56 fps n=0.035 L=545.0' S=0.0055 '/' Capacity=737.08 cfs 6.89 cfs 5.71 cfs NOAA 24-hr A 1.10-In Equiv Rainfall=1.32"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 62HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Reach 62R: L42 [52] Hint: Inlet/Outlet conditions not evaluated Inflow Area = 4.200 ac, 0.00% Impervious, Inflow Depth = 0.23" for 1.10-In Equiv event Inflow = 1.26 cfs @ 12.17 hrs, Volume= 0.079 af Outflow = 1.24 cfs @ 12.18 hrs, Volume= 0.079 af, Atten= 2%, Lag= 0.8 min Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Max. Velocity= 3.20 fps, Min. Travel Time= 1.0 min Avg. Velocity = 1.17 fps, Avg. Travel Time= 2.8 min Peak Storage= 78 cf @ 12.18 hrs Average Depth at Peak Storage= 0.36' Bank-Full Depth= 2.00' Flow Area= 3.1 sf, Capacity= 17.33 cfs 24.0" Round Pipe n= 0.012 Length= 200.0' Slope= 0.0050 '/' Inlet Invert= 893.00', Outlet Invert= 892.00' Reach 62R: L42 Inflow Outflow Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)1 0 Inflow Area=4.200 ac Avg. Flow Depth=0.36' Max Vel=3.20 fps 24.0" Round Pipe n=0.012 L=200.0' S=0.0050 '/' Capacity=17.33 cfs 1.26 cfs 1.24 cfs NOAA 24-hr A 1.10-In Equiv Rainfall=1.32"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 63HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Pond 11.1P: North Underground Inflow Area = 14.098 ac, 81.42% Impervious, Inflow Depth = 0.94" for 1.10-In Equiv event Inflow = 17.95 cfs @ 12.17 hrs, Volume= 1.099 af Outflow = 0.27 cfs @ 10.07 hrs, Volume= 1.099 af, Atten= 99%, Lag= 0.0 min Discarded = 0.27 cfs @ 10.07 hrs, Volume= 1.099 af Primary = 0.00 cfs @ 0.00 hrs, Volume= 0.000 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 909.98' @ 16.96 hrs Surf.Area= 191,215 sf Storage= 35,455 cf Plug-Flow detention time= 1,221.7 min calculated for 1.099 af (100% of inflow) Center-of-Mass det. time= 1,221.7 min ( 2,000.5 - 778.8 ) Volume Invert Avail.Storage Storage Description #1 909.40' 131,019 cf Custom Stage Data (Prismatic) Listed below (Recalc) 439,795 cf Overall - 3,063 cf Embedded = 436,731 cf x 30.0% Voids #2 911.70' 151,747 cf Custom Stage Data (Prismatic) Listed below (Recalc) 382,430 cf Overall - 3,063 cf Embedded = 379,367 cf x 40.0% Voids #3 909.40' 3,063 cf 8.0" Round Pipe Storage Inside #1 L= 8,776.0' #4 911.70' 3,063 cf 8.0" Round Pipe Storage Inside #2 L= 8,776.0' 288,893 cf Total Available Storage Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 909.40 191,215 0 0 911.70 191,215 439,795 439,795 Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 911.70 191,215 0 0 913.70 191,215 382,430 382,430 Device Routing Invert Outlet Devices #1 Primary 909.40'18.0" Round Culvert L= 212.0' RCP, sq.cut end projecting, Ke= 0.500 Inlet / Outlet Invert= 909.40' / 907.92' S= 0.0070 '/' Cc= 0.900 n= 0.011 Concrete pipe, straight & clean, Flow Area= 1.77 sf #2 Device 1 910.20'12.0" Vert. Infiltration Overflow C= 0.600 #3 Device 1 912.37'12.0" Vert. Filtration Overflow C= 0.600 #4 Discarded 909.40'0.060 in/hr Exfiltration over Surface area Phase-In= 0.01' Discarded OutFlow Max=0.27 cfs @ 10.07 hrs HW=909.41' (Free Discharge) 4=Exfiltration (Exfiltration Controls 0.27 cfs) Primary OutFlow Max=0.00 cfs @ 0.00 hrs HW=909.40' TW=0.00' (Dynamic Tailwater) 1=Culvert ( Controls 0.00 cfs) 2=Infiltration Overflow ( Controls 0.00 cfs) 3=Filtration Overflow ( Controls 0.00 cfs) NOAA 24-hr A 1.10-In Equiv Rainfall=1.32"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 64HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Pond 11.1P: North Underground Inflow Outflow Discarded Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 Inflow Area=14.098 ac Peak Elev=909.98' Storage=35,455 cf 17.95 cfs 0.27 cfs 0.27 cfs 0.00 cfs NOAA 24-hr A 1.10-In Equiv Rainfall=1.32"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 65HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Pond 11.3P: North Underground Inflow Area = 11.341 ac, 85.62% Impervious, Inflow Depth = 0.97" for 1.10-In Equiv event Inflow = 15.06 cfs @ 12.17 hrs, Volume= 0.920 af Outflow = 0.24 cfs @ 10.18 hrs, Volume= 0.920 af, Atten= 98%, Lag= 0.0 min Discarded = 0.24 cfs @ 10.18 hrs, Volume= 0.920 af Primary = 0.00 cfs @ 0.00 hrs, Volume= 0.000 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 905.53' @ 16.54 hrs Surf.Area= 172,601 sf Storage= 29,292 cf Plug-Flow detention time= 1,120.1 min calculated for 0.920 af (100% of inflow) Center-of-Mass det. time= 1,120.1 min ( 1,897.9 - 777.8 ) Volume Invert Avail.Storage Storage Description #1 905.00' 118,265 cf Custom Stage Data (Prismatic) Listed below (Recalc) 396,982 cf Overall - 2,765 cf Embedded = 394,217 cf x 30.0% Voids #2 907.30' 136,975 cf Custom Stage Data (Prismatic) Listed below (Recalc) 345,202 cf Overall - 2,765 cf Embedded = 342,437 cf x 40.0% Voids #3 905.00' 2,765 cf 8.0" Round Pipe Storage Inside #1 L= 7,922.0' #4 907.30' 2,765 cf 8.0" Round Pipe Storage Inside #2 L= 7,922.0' 260,770 cf Total Available Storage Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 905.00 172,601 0 0 907.30 172,601 396,982 396,982 Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 907.30 172,601 0 0 909.30 172,601 345,202 345,202 Device Routing Invert Outlet Devices #1 Primary 905.00'18.0" Round Culvert L= 150.0' RCP, sq.cut end projecting, Ke= 0.500 Inlet / Outlet Invert= 905.00' / 904.00' S= 0.0067 '/' Cc= 0.900 n= 0.011 Concrete pipe, straight & clean, Flow Area= 1.77 sf #2 Device 1 905.80'12.0" Vert. Infiltration Overflow C= 0.600 #3 Device 1 907.97'12.0" Vert. Filtration Overflow C= 0.600 #4 Discarded 905.00'0.060 in/hr Exfiltration over Surface area Phase-In= 0.01' Discarded OutFlow Max=0.24 cfs @ 10.18 hrs HW=905.01' (Free Discharge) 4=Exfiltration (Exfiltration Controls 0.24 cfs) Primary OutFlow Max=0.00 cfs @ 0.00 hrs HW=905.00' TW=0.00' (Dynamic Tailwater) 1=Culvert ( Controls 0.00 cfs) 2=Infiltration Overflow ( Controls 0.00 cfs) 3=Filtration Overflow ( Controls 0.00 cfs) NOAA 24-hr A 1.10-In Equiv Rainfall=1.32"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 66HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Pond 11.3P: North Underground Inflow Outflow Discarded Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 Inflow Area=11.341 ac Peak Elev=905.53' Storage=29,292 cf 15.06 cfs 0.24 cfs 0.24 cfs 0.00 cfs NOAA 24-hr A 1.10-In Equiv Rainfall=1.32"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 67HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Pond 11.4P: East Pond Inflow Area = 39.057 ac, 78.72% Impervious, Inflow Depth = 0.02" for 1.10-In Equiv event Inflow = 1.17 cfs @ 12.12 hrs, Volume= 0.059 af Outflow = 0.71 cfs @ 12.18 hrs, Volume= 0.059 af, Atten= 39%, Lag= 3.6 min Primary = 0.71 cfs @ 12.18 hrs, Volume= 0.059 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Starting Elev= 904.00' Surf.Area= 0.280 ac Storage= 1.260 af Peak Elev= 904.05' @ 12.18 hrs Surf.Area= 0.283 ac Storage= 1.273 af (0.013 af above start) Plug-Flow detention time= (not calculated: initial storage exceeds outflow) Center-of-Mass det. time= 27.6 min ( 808.8 - 781.3 ) Volume Invert Avail.Storage Storage Description #1 895.00' 2.829 af Custom Stage Data (Prismatic) Listed below (Recalc) Elevation Surf.Area Inc.Store Cum.Store (feet) (acres) (acre-feet) (acre-feet) 895.00 0.000 0.000 0.000 904.00 0.280 1.260 1.260 906.00 0.391 0.671 1.931 908.00 0.507 0.898 2.829 Device Routing Invert Outlet Devices #1 Primary 895.97'54.0" Round Culvert L= 232.0' RCP, square edge headwall, Ke= 0.500 Inlet / Outlet Invert= 895.97' / 894.53' S= 0.0062 '/' Cc= 0.900 n= 0.030 Corrugated metal, Flow Area= 15.90 sf #2 Device 1 904.00'84.0" Horiz. Orifice/Grate C= 0.600 Limited to weir flow at low heads Primary OutFlow Max=0.71 cfs @ 12.18 hrs HW=904.05' TW=0.00' (Dynamic Tailwater) 1=Culvert (Passes 0.71 cfs of 110.24 cfs potential flow) 2=Orifice/Grate (Weir Controls 0.71 cfs @ 0.70 fps) NOAA 24-hr A 1.10-In Equiv Rainfall=1.32"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 68HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Pond 11.4P: East Pond Inflow Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)1 0 Inflow Area=39.057 ac Peak Elev=904.05' Storage=1.273 af 1.17 cfs 0.71 cfs NOAA 24-hr A 1.10-In Equiv Rainfall=1.32"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 69HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Pond 11P: Drop MHs [40] Hint: Not Described (Outflow=Inflow) Inflow Area = 38.086 ac, 79.22% Impervious, Inflow Depth = 0.00" for 1.10-In Equiv event Inflow = 0.00 cfs @ 0.00 hrs, Volume= 0.000 af Primary = 0.00 cfs @ 0.00 hrs, Volume= 0.000 af, Atten= 0%, Lag= 0.0 min Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Pond 11P: Drop MHs Inflow Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)1 0 Inflow Area=38.086 ac 0.00 cfs 0.00 cfs NOAA 24-hr A 1.10-In Equiv Rainfall=1.32"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 70HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Pond 12P: North Underground Inflow Area = 12.647 ac, 71.03% Impervious, Inflow Depth = 0.84" for 1.10-In Equiv event Inflow = 14.39 cfs @ 12.17 hrs, Volume= 0.888 af Outflow = 0.21 cfs @ 10.08 hrs, Volume= 0.888 af, Atten= 99%, Lag= 0.0 min Discarded = 0.21 cfs @ 10.08 hrs, Volume= 0.888 af Primary = 0.00 cfs @ 0.00 hrs, Volume= 0.000 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 908.70' @ 17.22 hrs Surf.Area= 150,233 sf Storage= 28,692 cf Plug-Flow detention time= 1,260.7 min calculated for 0.888 af (100% of inflow) Center-of-Mass det. time= 1,260.8 min ( 2,042.4 - 781.7 ) Volume Invert Avail.Storage Storage Description #1 908.10' 102,939 cf Custom Stage Data (Prismatic) Listed below (Recalc) 345,536 cf Overall - 2,407 cf Embedded = 343,129 cf x 30.0% Voids #2 910.40' 119,224 cf Custom Stage Data (Prismatic) Listed below (Recalc) 300,466 cf Overall - 2,407 cf Embedded = 298,059 cf x 40.0% Voids #3 908.10' 2,407 cf 8.0" Round Pipe Storage Inside #1 L= 6,895.0' #4 910.40' 2,407 cf 8.0" Round Pipe Storage Inside #2 L= 6,895.0' 226,976 cf Total Available Storage Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 908.10 150,233 0 0 910.40 150,233 345,536 345,536 Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 910.40 150,233 0 0 912.40 150,233 300,466 300,466 Device Routing Invert Outlet Devices #1 Primary 908.10'18.0" Round Culvert L= 840.0' RCP, sq.cut end projecting, Ke= 0.500 Inlet / Outlet Invert= 908.10' / 904.00' S= 0.0049 '/' Cc= 0.900 n= 0.011 Concrete pipe, straight & clean, Flow Area= 1.77 sf #2 Device 1 908.90'12.0" Vert. Infiltration Overflow C= 0.600 #3 Device 1 911.07'12.0" Vert. Filtration Overflow C= 0.600 #4 Discarded 908.10'0.060 in/hr Exfiltration over Surface area Phase-In= 0.01' Discarded OutFlow Max=0.21 cfs @ 10.08 hrs HW=908.11' (Free Discharge) 4=Exfiltration (Exfiltration Controls 0.21 cfs) Primary OutFlow Max=0.00 cfs @ 0.00 hrs HW=908.10' TW=0.00' (Dynamic Tailwater) 1=Culvert ( Controls 0.00 cfs) 2=Infiltration Overflow ( Controls 0.00 cfs) 3=Filtration Overflow ( Controls 0.00 cfs) NOAA 24-hr A 1.10-In Equiv Rainfall=1.32"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 71HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Pond 12P: North Underground Inflow Outflow Discarded Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 Inflow Area=12.647 ac Peak Elev=908.70' Storage=28,692 cf 14.39 cfs 0.21 cfs 0.21 cfs 0.00 cfs NOAA 24-hr A 1.10-In Equiv Rainfall=1.32"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 72HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Pond 61P: Englewood Pond [62] Hint: Exceeded Reach 61R OUTLET depth by 0.18' @ 24.94 hrs [62] Hint: Exceeded Reach 62R OUTLET depth by 0.18' @ 24.66 hrs Inflow Area = 69.583 ac, 44.34% Impervious, Inflow Depth = 0.15" for 1.10-In Equiv event Inflow = 12.24 cfs @ 12.22 hrs, Volume= 0.862 af Outflow = 0.31 cfs @ 17.71 hrs, Volume= 0.812 af, Atten= 97%, Lag= 329.6 min Primary = 0.31 cfs @ 17.71 hrs, Volume= 0.812 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 892.20' @ 17.71 hrs Surf.Area= 138,677 sf Storage= 27,500 cf Plug-Flow detention time= 2,444.4 min calculated for 0.812 af (94% of inflow) Center-of-Mass det. time= 2,413.7 min ( 3,263.7 - 850.0 ) Volume Invert Avail.Storage Storage Description #1 892.00' 1,031,055 cf Custom Stage Data (Prismatic) Listed below (Recalc) Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 892.00 136,580 0 0 895.00 168,060 456,960 456,960 898.00 214,670 574,095 1,031,055 Device Routing Invert Outlet Devices #1 Primary 892.00'42.0" Round Culvert L= 29.0' RCP, square edge headwall, Ke= 0.500 Inlet / Outlet Invert= 892.00' / 891.71' S= 0.0100 '/' Cc= 0.900 n= 0.013 Concrete pipe, straight & clean, Flow Area= 9.62 sf #2 Device 1 887.63'42.0" Round Culvert L= 13.0' RCP, end-section conforming to fill, Ke= 0.500 Inlet / Outlet Invert= 887.50' / 887.63' S= -0.0100 '/' Cc= 0.900 n= 0.013 Concrete pipe, straight & clean, Flow Area= 9.62 sf Primary OutFlow Max=0.31 cfs @ 17.71 hrs HW=892.20' TW=890.15' (Dynamic Tailwater) 1=Culvert (Barrel Controls 0.31 cfs @ 2.16 fps) 2=Culvert (Passes 0.31 cfs of 20.71 cfs potential flow) NOAA 24-hr A 1.10-In Equiv Rainfall=1.32"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 73HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Pond 61P: Englewood Pond Inflow Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)13 12 11 10 9 8 7 6 5 4 3 2 1 0 Inflow Area=69.583 ac Peak Elev=892.20' Storage=27,500 cf 12.24 cfs 0.31 cfs NOAA 24-hr A 1.10-In Equiv Rainfall=1.32"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 74HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Pond 65P: Fresh MDW Inflow Area = 12.140 ac, 3.62% Impervious, Inflow Depth = 0.32" for 1.10-In Equiv event Inflow = 4.39 cfs @ 12.17 hrs, Volume= 0.326 af Outflow = 0.18 cfs @ 15.02 hrs, Volume= 0.172 af, Atten= 96%, Lag= 171.2 min Primary = 0.18 cfs @ 15.02 hrs, Volume= 0.172 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 896.53' @ 15.02 hrs Surf.Area= 19,825 sf Storage= 10,174 cf Plug-Flow detention time= 935.6 min calculated for 0.172 af (53% of inflow) Center-of-Mass det. time= 828.8 min ( 1,649.3 - 820.5 ) Volume Invert Avail.Storage Storage Description #1 896.00' 123,320 cf Custom Stage Data (Prismatic) Listed below (Recalc) Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 896.00 18,540 0 0 900.00 28,230 93,540 93,540 901.00 31,330 29,780 123,320 Device Routing Invert Outlet Devices #1 Primary 892.35'12.0" Round Culvert L= 35.0' RCP, square edge headwall, Ke= 0.500 Inlet / Outlet Invert= 892.00' / 892.35' S= -0.0100 '/' Cc= 0.900 n= 0.012, Flow Area= 0.79 sf #2 Device 1 896.35'33.0" Round Culvert L= 69.0' RCP, end-section conforming to fill, Ke= 0.500 Inlet / Outlet Invert= 896.35' / 896.01' S= 0.0049 '/' Cc= 0.900 n= 0.012 Concrete pipe, finished, Flow Area= 5.94 sf Primary OutFlow Max=0.18 cfs @ 15.02 hrs HW=896.53' TW=890.09' (Dynamic Tailwater) 1=Culvert (Passes 0.18 cfs of 7.25 cfs potential flow) 2=Culvert (Barrel Controls 0.18 cfs @ 1.67 fps) NOAA 24-hr A 1.10-In Equiv Rainfall=1.32"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 75HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Pond 65P: Fresh MDW Inflow Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)4 3 2 1 0 Inflow Area=12.140 ac Peak Elev=896.53' Storage=10,174 cf 4.39 cfs 0.18 cfs NOAA 24-hr A 1.10-In Equiv Rainfall=1.32"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 76HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Pond 68P: East MNDOT M10 Wetland Inflow Area = 98.723 ac, 31.70% Impervious, Inflow Depth > 0.14" for 1.10-In Equiv event Inflow = 0.89 cfs @ 12.34 hrs, Volume= 1.114 af Outflow = 0.00 cfs @ 0.00 hrs, Volume= 0.000 af, Atten= 100%, Lag= 0.0 min Primary = 0.00 cfs @ 0.00 hrs, Volume= 0.000 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 890.48' @ 360.00 hrs Surf.Area= 131,700 sf Storage= 48,531 cf Plug-Flow detention time= (not calculated: initial storage exceeds outflow) Center-of-Mass det. time= (not calculated: no outflow) Volume Invert Avail.Storage Storage Description #1 890.00' 1,574,445 cf Custom Stage Data (Prismatic) Listed below (Recalc) Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 890.00 68,660 0 0 891.00 198,790 133,725 133,725 892.00 340,250 269,520 403,245 895.00 440,550 1,171,200 1,574,445 Device Routing Invert Outlet Devices #1 Primary 890.30'18.0" Round Culvert L= 155.0' RCP, square edge headwall, Ke= 0.500 Inlet / Outlet Invert= 890.30' / 889.53' S= 0.0050 '/' Cc= 0.900 n= 0.013 Concrete pipe, straight & clean, Flow Area= 1.77 sf #2 Device 1 891.00'10.0" Vert. Orifice/Grate C= 0.600 #3 Device 2 890.50'18.0" Round Culvert L= 40.0' RCP, end-section conforming to fill, Ke= 0.500 Inlet / Outlet Invert= 890.30' / 890.50' S= -0.0050 '/' Cc= 0.900 n= 0.013 Concrete pipe, straight & clean, Flow Area= 1.77 sf Primary OutFlow Max=0.00 cfs @ 0.00 hrs HW=890.00' (Free Discharge) 1=Culvert ( Controls 0.00 cfs) 2=Orifice/Grate ( Controls 0.00 cfs) 3=Culvert ( Controls 0.00 cfs) NOAA 24-hr A 1.10-In Equiv Rainfall=1.32"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 77HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Pond 68P: East MNDOT M10 Wetland Inflow Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.95 0.9 0.85 0.8 0.75 0.7 0.65 0.6 0.55 0.5 0.45 0.4 0.35 0.3 0.25 0.2 0.15 0.1 0.05 0 Inflow Area=98.723 ac Peak Elev=890.48' Storage=48,531 cf 0.89 cfs 0.00 cfs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 78HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Time span=0.00-360.00 hrs, dt=0.01 hrs, 36001 points Runoff by SCS TR-20 method, UH=SCS, Weighted-Q Reach routing by Dyn-Stor-Ind method - Pond routing by Dyn-Stor-Ind method Runoff Area=614,104 sf 81.42% Impervious Runoff Depth=2.36"Subcatchment 11.1S: North Tc=10.0 min CN=WQ Runoff=44.71 cfs 2.776 af Runoff Area=494,016 sf 85.62% Impervious Runoff Depth=2.43"Subcatchment 11.3S: East Tc=10.0 min CN=WQ Runoff=36.86 cfs 2.292 af Runoff Area=42,316 sf 59.09% Impervious Runoff Depth=2.03"Subcatchment 11.4S: East Pond Tc=5.0 min CN=WQ Runoff=3.41 cfs 0.164 af Runoff Area=35,675 sf 0.00% Impervious Runoff Depth=1.15"Subcatchment 11oS: From Powers Flow Length=94' Slope=0.0430 '/' Tc=10.6 min CN=80 Runoff=1.32 cfs 0.079 af Runoff Area=550,898 sf 71.03% Impervious Runoff Depth=2.21"Subcatchment 12S: Central Tc=10.0 min CN=WQ Runoff=37.64 cfs 2.328 af Runoff Area=4,669 sf 100.00% Impervious Runoff Depth=2.64"Subcatchment 16oS: East Offsite Tc=5.0 min CN=98 Runoff=0.48 cfs 0.024 af Runoff Area=9.400 ac 0.00% Impervious Runoff Depth=1.63"Subcatchment 61S: Powers (from SRF) Tc=9.0 min CN=87 Runoff=23.53 cfs 1.274 af Runoff Area=4.200 ac 0.00% Impervious Runoff Depth=1.21"Subcatchment 62S: NE Ramp (from SRF) Tc=8.0 min CN=81 Runoff=8.07 cfs 0.425 af Runoff Area=8.200 ac 0.00% Impervious Runoff Depth=1.63"Subcatchment 63S: TH 212 (from SRF) Tc=12.0 min CN=87 Runoff=18.02 cfs 1.111 af Runoff Area=7.800 ac 0.00% Impervious Runoff Depth=0.98"Subcatchment 64S: Englewood (from SRF) Tc=10.0 min CN=77 Runoff=10.71 cfs 0.638 af Runoff Area=6.400 ac 0.00% Impervious Runoff Depth=1.34"Subcatchment 65S: LYMLP (from SRF) Tc=15.0 min CN=83 Runoff=10.31 cfs 0.716 af Runoff Area=1.900 ac 0.00% Impervious Runoff Depth=2.22"Subcatchment 66S: N54 (from SRF) Tc=7.6 min CN=94 Runoff=6.75 cfs 0.352 af Runoff Area=0.440 ac 100.00% Impervious Runoff Depth=2.87"Subcatchment 67-1S: Fresh MDW Tc=7.0 min CN=100 Runoff=1.81 cfs 0.105 af Runoff Area=1.100 ac 0.00% Impervious Runoff Depth=0.69"Subcatchment 67-2S: Fresh MDW Subcatch Tc=7.0 min CN=71 Runoff=1.11 cfs 0.063 af Runoff Area=2.300 ac 0.00% Impervious Runoff Depth=0.00"Subcatchment 67-3S: Fresh MDW Subcatch Tc=83.0 min CN=10 Runoff=0.00 cfs 0.000 af Runoff Area=17.000 ac 0.00% Impervious Runoff Depth=0.83"Subcatchment 68S: M10 Tc=10.0 min CN=74 Runoff=18.87 cfs 1.171 af MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 79HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Inflow=4.05 cfs 2.809 afReach 10R: Lake Susan Drainage Outflow=4.05 cfs 2.809 af Avg. Flow Depth=0.91' Max Vel=2.51 fps Inflow=27.34 cfs 4.083 afReach 61R: NERDITCH n=0.035 L=545.0' S=0.0055 '/' Capacity=737.08 cfs Outflow=24.66 cfs 4.083 af Avg. Flow Depth=0.96' Max Vel=5.41 fps Inflow=8.07 cfs 0.425 afReach 62R: L42 24.0" Round Pipe n=0.012 L=200.0' S=0.0050 '/' Capacity=17.33 cfs Outflow=8.02 cfs 0.425 af Peak Elev=910.82' Storage=83,374 cf Inflow=44.71 cfs 2.776 afPond 11.1P: North Underground Discarded=0.27 cfs 1.826 af Primary=1.36 cfs 0.950 af Outflow=1.62 cfs 2.776 af Peak Elev=906.30' Storage=69,449 cf Inflow=36.86 cfs 2.292 afPond 11.3P: North Underground Discarded=0.24 cfs 1.616 af Primary=0.96 cfs 0.676 af Outflow=1.20 cfs 2.292 af Peak Elev=904.14' Storage=1.301 af Inflow=3.96 cfs 2.707 afPond 11.4P: East Pond Outflow=3.94 cfs 2.707 af Inflow=3.85 cfs 2.543 afPond 11P: Drop MHs Primary=3.85 cfs 2.543 af Peak Elev=909.57' Storage=67,744 cf Inflow=37.64 cfs 2.328 afPond 12P: North Underground Discarded=0.21 cfs 1.411 af Primary=1.54 cfs 0.917 af Outflow=1.75 cfs 2.328 af Peak Elev=892.86' Storage=121,701 cf Inflow=60.52 cfs 6.258 afPond 61P: Englewood Pond Outflow=4.94 cfs 6.205 af Peak Elev=897.28' Storage=25,704 cf Inflow=17.19 cfs 1.236 afPond 65P: Fresh MDW Outflow=4.58 cfs 1.082 af Peak Elev=891.59' Storage=276,991 cf Inflow=20.65 cfs 8.458 afPond 68P: East MNDOT M10 Wetland Outflow=1.09 cfs 5.147 af Total Runoff Area = 98.723 ac Runoff Volume = 13.518 af Average Runoff Depth = 1.64" 68.30% Pervious = 67.430 ac 31.70% Impervious = 31.293 ac MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 80HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 11.1S: North Runoff = 44.71 cfs @ 12.13 hrs, Volume= 2.776 af, Depth= 2.36" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Area (sf) CN Description 114,104 80 >75% Grass cover, Good, HSG D * 500,000 98 Paved parking & roofs, HSG D 614,104 Weighted Average 114,104 80 18.58% Pervious Area 500,000 98 81.42% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 10.0 Direct Entry, Subcatchment 11.1S: North Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)50 48 46 44 42 40 38 36 34 32 30 28 26 24 22 20 18 16 14 12 10 8 6 4 2 0 MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Runoff Area=614,104 sf Runoff Volume=2.776 af Runoff Depth=2.36" Tc=10.0 min CN=WQ 44.71 cfs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 81HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 11.3S: East Runoff = 36.86 cfs @ 12.13 hrs, Volume= 2.292 af, Depth= 2.43" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Area (sf) CN Description 71,016 80 >75% Grass cover, Good, HSG D * 423,000 98 Paved & Roofs, HSG D 494,016 Weighted Average 71,016 80 14.38% Pervious Area 423,000 98 85.62% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 10.0 Direct Entry, Subcatchment 11.3S: East Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)40 38 36 34 32 30 28 26 24 22 20 18 16 14 12 10 8 6 4 2 0 MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Runoff Area=494,016 sf Runoff Volume=2.292 af Runoff Depth=2.43" Tc=10.0 min CN=WQ 36.86 cfs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 82HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 11.4S: East Pond Runoff = 3.41 cfs @ 12.07 hrs, Volume= 0.164 af, Depth= 2.03" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Area (sf) CN Description 17,312 80 >75% Grass cover, Good, HSG D 19,254 98 Water Surface, HSG D 5,750 98 Roofs, HSG D 42,316 Weighted Average 17,312 80 40.91% Pervious Area 25,004 98 59.09% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 5.0 Direct Entry, Subcatchment 11.4S: East Pond Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)3 2 1 0 MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Runoff Area=42,316 sf Runoff Volume=0.164 af Runoff Depth=2.03" Tc=5.0 min CN=WQ 3.41 cfs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 83HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 11oS: From Powers Runoff = 1.32 cfs @ 12.15 hrs, Volume= 0.079 af, Depth= 1.15" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Area (sf) CN Description 35,675 80 >75% Grass cover, Good, HSG D 35,675 80 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 10.6 94 0.0430 0.15 Sheet Flow, Grass: Dense n= 0.240 P2= 2.87" Subcatchment 11oS: From Powers Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)1 0 MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Runoff Area=35,675 sf Runoff Volume=0.079 af Runoff Depth=1.15" Flow Length=94' Slope=0.0430 '/' Tc=10.6 min CN=80 1.32 cfs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 84HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 12S: Central Runoff = 37.64 cfs @ 12.13 hrs, Volume= 2.328 af, Depth= 2.21" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Area (sf) CN Description 159,598 80 >75% Grass cover, Good, HSG D 391,300 98 Paved parking, HSG D 550,898 Weighted Average 159,598 80 28.97% Pervious Area 391,300 98 71.03% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 10.0 Direct Entry, Subcatchment 12S: Central Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)42 40 38 36 34 32 30 28 26 24 22 20 18 16 14 12 10 8 6 4 2 0 MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Runoff Area=550,898 sf Runoff Volume=2.328 af Runoff Depth=2.21" Tc=10.0 min CN=WQ 37.64 cfs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 85HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 16oS: East Offsite Runoff = 0.48 cfs @ 12.07 hrs, Volume= 0.024 af, Depth= 2.64" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Area (sf) CN Description 4,669 98 Paved parking, HSG D 4,669 98 100.00% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 5.0 Direct Entry, Subcatchment 16oS: East Offsite Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.5 0.45 0.4 0.35 0.3 0.25 0.2 0.15 0.1 0.05 0 MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Runoff Area=4,669 sf Runoff Volume=0.024 af Runoff Depth=2.64" Tc=5.0 min CN=98 0.48 cfs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 86HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 61S: Powers (from SRF) Runoff = 23.53 cfs @ 12.12 hrs, Volume= 1.274 af, Depth= 1.63" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Area (ac) CN Description * 9.400 87 Weighted 9.400 87 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 9.0 Direct Entry, Subcatchment 61S: Powers (from SRF) Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Runoff Area=9.400 ac Runoff Volume=1.274 af Runoff Depth=1.63" Tc=9.0 min CN=87 23.53 cfs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 87HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 62S: NE Ramp (from SRF) Runoff = 8.07 cfs @ 12.11 hrs, Volume= 0.425 af, Depth= 1.21" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Area (ac) CN Description * 4.200 81 Weighted 4.200 81 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 8.0 Direct Entry, Subcatchment 62S: NE Ramp (from SRF) Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)9 8 7 6 5 4 3 2 1 0 MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Runoff Area=4.200 ac Runoff Volume=0.425 af Runoff Depth=1.21" Tc=8.0 min CN=81 8.07 cfs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 88HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 63S: TH 212 (from SRF) Runoff = 18.02 cfs @ 12.17 hrs, Volume= 1.111 af, Depth= 1.63" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Area (ac) CN Description * 8.200 87 Weighted 8.200 87 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 12.0 Direct Entry, Subcatchment 63S: TH 212 (from SRF) Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Runoff Area=8.200 ac Runoff Volume=1.111 af Runoff Depth=1.63" Tc=12.0 min CN=87 18.02 cfs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 89HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 64S: Englewood (from SRF) Runoff = 10.71 cfs @ 12.14 hrs, Volume= 0.638 af, Depth= 0.98" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Area (ac) CN Description * 7.800 77 Weighted 7.800 77 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 10.0 Direct Entry, Subcatchment 64S: Englewood (from SRF) Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)11 10 9 8 7 6 5 4 3 2 1 0 MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Runoff Area=7.800 ac Runoff Volume=0.638 af Runoff Depth=0.98" Tc=10.0 min CN=77 10.71 cfs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 90HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 65S: LYMLP (from SRF) Runoff = 10.31 cfs @ 12.21 hrs, Volume= 0.716 af, Depth= 1.34" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Area (ac) CN Description * 6.400 83 Weighted 6.400 83 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 15.0 Direct Entry, Subcatchment 65S: LYMLP (from SRF) Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)11 10 9 8 7 6 5 4 3 2 1 0 MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Runoff Area=6.400 ac Runoff Volume=0.716 af Runoff Depth=1.34" Tc=15.0 min CN=83 10.31 cfs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 91HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 66S: N54 (from SRF) Runoff = 6.75 cfs @ 12.10 hrs, Volume= 0.352 af, Depth= 2.22" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Area (ac) CN Description * 1.900 94 Weighted 1.900 94 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 7.6 Direct Entry, Subcatchment 66S: N54 (from SRF) Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)7 6 5 4 3 2 1 0 MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Runoff Area=1.900 ac Runoff Volume=0.352 af Runoff Depth=2.22" Tc=7.6 min CN=94 6.75 cfs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 92HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 67-1S: Fresh MDW Subcatch 1 (from SRF) Runoff = 1.81 cfs @ 12.09 hrs, Volume= 0.105 af, Depth= 2.87" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Area (ac) CN Description * 0.440 100 Weighted 0.440 100 100.00% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 7.0 Direct Entry, Subcatchment 67-1S: Fresh MDW Subcatch 1 (from SRF) Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)2 1 0 MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Runoff Area=0.440 ac Runoff Volume=0.105 af Runoff Depth=2.87" Tc=7.0 min CN=100 1.81 cfs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 93HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 67-2S: Fresh MDW Subcatch 2 (from SRF) Runoff = 1.11 cfs @ 12.11 hrs, Volume= 0.063 af, Depth= 0.69" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Area (ac) CN Description * 1.100 71 Weighted 1.100 71 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 7.0 Direct Entry, Subcatchment 67-2S: Fresh MDW Subcatch 2 (from SRF) Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)1 0 MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Runoff Area=1.100 ac Runoff Volume=0.063 af Runoff Depth=0.69" Tc=7.0 min CN=71 1.11 cfs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 94HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 67-3S: Fresh MDW Subcatch 3 (from SRF) [45] Hint: Runoff=Zero Runoff = 0.00 cfs @ 0.00 hrs, Volume= 0.000 af, Depth= 0.00" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Area (ac) CN Description * 2.300 10 Weighted 2.300 10 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 83.0 Direct Entry, Subcatchment 67-3S: Fresh MDW Subcatch 3 (from SRF) Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)1 0 MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Runoff Area=2.300 ac Runoff Volume=0.000 af Runoff Depth=0.00" Tc=83.0 min CN=10 0.00 cfs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 95HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 68S: M10 Runoff = 18.87 cfs @ 12.15 hrs, Volume= 1.171 af, Depth= 0.83" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Area (ac) CN Description * 17.000 74 Weighted 17.000 74 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 10.0 Direct Entry, Subcatchment 68S: M10 Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Runoff Area=17.000 ac Runoff Volume=1.171 af Runoff Depth=0.83" Tc=10.0 min CN=74 18.87 cfs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 96HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Reach 10R: Lake Susan Drainage [40] Hint: Not Described (Outflow=Inflow) Inflow Area = 39.983 ac, 77.17% Impervious, Inflow Depth = 0.84" for 2y 24hr event Inflow = 4.05 cfs @ 13.57 hrs, Volume= 2.809 af Outflow = 4.05 cfs @ 13.57 hrs, Volume= 2.809 af, Atten= 0%, Lag= 0.0 min Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Reach 10R: Lake Susan Drainage Inflow Outflow Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)4 3 2 1 0 Inflow Area=39.983 ac 4.05 cfs 4.05 cfs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 97HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Reach 61R: NERDITCH Inflow Area = 49.383 ac, 62.48% Impervious, Inflow Depth = 0.99" for 2y 24hr event Inflow = 27.34 cfs @ 12.13 hrs, Volume= 4.083 af Outflow = 24.66 cfs @ 12.17 hrs, Volume= 4.083 af, Atten= 10%, Lag= 2.4 min Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Max. Velocity= 2.51 fps, Min. Travel Time= 3.6 min Avg. Velocity = 0.70 fps, Avg. Travel Time= 12.9 min Peak Storage= 5,349 cf @ 12.17 hrs Average Depth at Peak Storage= 0.91' Bank-Full Depth= 5.00' Flow Area= 115.0 sf, Capacity= 737.08 cfs 8.00' x 5.00' deep channel, n= 0.035 Side Slope Z-value= 3.0 '/' Top Width= 38.00' Length= 545.0' Slope= 0.0055 '/' Inlet Invert= 895.00', Outlet Invert= 892.00' ‡ Reach 61R: NERDITCH Inflow Outflow Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)30 28 26 24 22 20 18 16 14 12 10 8 6 4 2 0 Inflow Area=49.383 ac Avg. Flow Depth=0.91' Max Vel=2.51 fps n=0.035 L=545.0' S=0.0055 '/' Capacity=737.08 cfs 27.34 cfs 24.66 cfs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 98HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Reach 62R: L42 [52] Hint: Inlet/Outlet conditions not evaluated Inflow Area = 4.200 ac, 0.00% Impervious, Inflow Depth = 1.21" for 2y 24hr event Inflow = 8.07 cfs @ 12.11 hrs, Volume= 0.425 af Outflow = 8.02 cfs @ 12.12 hrs, Volume= 0.425 af, Atten= 1%, Lag= 0.5 min Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Max. Velocity= 5.41 fps, Min. Travel Time= 0.6 min Avg. Velocity = 1.78 fps, Avg. Travel Time= 1.9 min Peak Storage= 297 cf @ 12.12 hrs Average Depth at Peak Storage= 0.96' Bank-Full Depth= 2.00' Flow Area= 3.1 sf, Capacity= 17.33 cfs 24.0" Round Pipe n= 0.012 Length= 200.0' Slope= 0.0050 '/' Inlet Invert= 893.00', Outlet Invert= 892.00' Reach 62R: L42 Inflow Outflow Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)9 8 7 6 5 4 3 2 1 0 Inflow Area=4.200 ac Avg. Flow Depth=0.96' Max Vel=5.41 fps 24.0" Round Pipe n=0.012 L=200.0' S=0.0050 '/' Capacity=17.33 cfs 8.07 cfs 8.02 cfs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 99HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Pond 11.1P: North Underground Inflow Area = 14.098 ac, 81.42% Impervious, Inflow Depth = 2.36" for 2y 24hr event Inflow = 44.71 cfs @ 12.13 hrs, Volume= 2.776 af Outflow = 1.62 cfs @ 13.71 hrs, Volume= 2.776 af, Atten= 96%, Lag= 94.8 min Discarded = 0.27 cfs @ 6.46 hrs, Volume= 1.826 af Primary = 1.36 cfs @ 13.71 hrs, Volume= 0.950 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 910.82' @ 13.71 hrs Surf.Area= 191,215 sf Storage= 83,374 cf Plug-Flow detention time= 1,426.0 min calculated for 2.776 af (100% of inflow) Center-of-Mass det. time= 1,426.0 min ( 2,193.6 - 767.5 ) Volume Invert Avail.Storage Storage Description #1 909.40' 131,019 cf Custom Stage Data (Prismatic) Listed below (Recalc) 439,795 cf Overall - 3,063 cf Embedded = 436,731 cf x 30.0% Voids #2 911.70' 151,747 cf Custom Stage Data (Prismatic) Listed below (Recalc) 382,430 cf Overall - 3,063 cf Embedded = 379,367 cf x 40.0% Voids #3 909.40' 3,063 cf 8.0" Round Pipe Storage Inside #1 L= 8,776.0' #4 911.70' 3,063 cf 8.0" Round Pipe Storage Inside #2 L= 8,776.0' 288,893 cf Total Available Storage Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 909.40 191,215 0 0 911.70 191,215 439,795 439,795 Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 911.70 191,215 0 0 913.70 191,215 382,430 382,430 Device Routing Invert Outlet Devices #1 Primary 909.40'18.0" Round Culvert L= 212.0' RCP, sq.cut end projecting, Ke= 0.500 Inlet / Outlet Invert= 909.40' / 907.92' S= 0.0070 '/' Cc= 0.900 n= 0.011 Concrete pipe, straight & clean, Flow Area= 1.77 sf #2 Device 1 910.20'12.0" Vert. Infiltration Overflow C= 0.600 #3 Device 1 912.37'12.0" Vert. Filtration Overflow C= 0.600 #4 Discarded 909.40'0.060 in/hr Exfiltration over Surface area Phase-In= 0.01' Discarded OutFlow Max=0.27 cfs @ 6.46 hrs HW=909.41' (Free Discharge) 4=Exfiltration (Exfiltration Controls 0.27 cfs) Primary OutFlow Max=1.36 cfs @ 13.71 hrs HW=910.82' TW=0.00' (Dynamic Tailwater) 1=Culvert (Passes 1.36 cfs of 7.00 cfs potential flow) 2=Infiltration Overflow (Orifice Controls 1.36 cfs @ 2.67 fps) 3=Filtration Overflow ( Controls 0.00 cfs) MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 100HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Pond 11.1P: North Underground Inflow Outflow Discarded Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)50 45 40 35 30 25 20 15 10 5 0 Inflow Area=14.098 ac Peak Elev=910.82' Storage=83,374 cf 44.71 cfs 1.62 cfs 0.27 cfs1.36 cfs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 101HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Pond 11.3P: North Underground Inflow Area = 11.341 ac, 85.62% Impervious, Inflow Depth = 2.43" for 2y 24hr event Inflow = 36.86 cfs @ 12.13 hrs, Volume= 2.292 af Outflow = 1.20 cfs @ 13.81 hrs, Volume= 2.292 af, Atten= 97%, Lag= 100.7 min Discarded = 0.24 cfs @ 6.54 hrs, Volume= 1.616 af Primary = 0.96 cfs @ 13.81 hrs, Volume= 0.676 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 906.30' @ 13.81 hrs Surf.Area= 172,601 sf Storage= 69,449 cf Plug-Flow detention time= 1,476.0 min calculated for 2.292 af (100% of inflow) Center-of-Mass det. time= 1,476.0 min ( 2,241.9 - 765.9 ) Volume Invert Avail.Storage Storage Description #1 905.00' 118,265 cf Custom Stage Data (Prismatic) Listed below (Recalc) 396,982 cf Overall - 2,765 cf Embedded = 394,217 cf x 30.0% Voids #2 907.30' 136,975 cf Custom Stage Data (Prismatic) Listed below (Recalc) 345,202 cf Overall - 2,765 cf Embedded = 342,437 cf x 40.0% Voids #3 905.00' 2,765 cf 8.0" Round Pipe Storage Inside #1 L= 7,922.0' #4 907.30' 2,765 cf 8.0" Round Pipe Storage Inside #2 L= 7,922.0' 260,770 cf Total Available Storage Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 905.00 172,601 0 0 907.30 172,601 396,982 396,982 Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 907.30 172,601 0 0 909.30 172,601 345,202 345,202 Device Routing Invert Outlet Devices #1 Primary 905.00'18.0" Round Culvert L= 150.0' RCP, sq.cut end projecting, Ke= 0.500 Inlet / Outlet Invert= 905.00' / 904.00' S= 0.0067 '/' Cc= 0.900 n= 0.011 Concrete pipe, straight & clean, Flow Area= 1.77 sf #2 Device 1 905.80'12.0" Vert. Infiltration Overflow C= 0.600 #3 Device 1 907.97'12.0" Vert. Filtration Overflow C= 0.600 #4 Discarded 905.00'0.060 in/hr Exfiltration over Surface area Phase-In= 0.01' Discarded OutFlow Max=0.24 cfs @ 6.54 hrs HW=905.01' (Free Discharge) 4=Exfiltration (Exfiltration Controls 0.24 cfs) Primary OutFlow Max=0.96 cfs @ 13.81 hrs HW=906.30' TW=0.00' (Dynamic Tailwater) 1=Culvert (Passes 0.96 cfs of 6.34 cfs potential flow) 2=Infiltration Overflow (Orifice Controls 0.96 cfs @ 2.42 fps) 3=Filtration Overflow ( Controls 0.00 cfs) MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 102HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Pond 11.3P: North Underground Inflow Outflow Discarded Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)40 38 36 34 32 30 28 26 24 22 20 18 16 14 12 10 8 6 4 2 0 Inflow Area=11.341 ac Peak Elev=906.30' Storage=69,449 cf 36.86 cfs 1.20 cfs 0.24 cfs 0.96 cfs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 103HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Pond 11.4P: East Pond Inflow Area = 39.057 ac, 78.72% Impervious, Inflow Depth = 0.83" for 2y 24hr event Inflow = 3.96 cfs @ 13.54 hrs, Volume= 2.707 af Outflow = 3.94 cfs @ 13.72 hrs, Volume= 2.707 af, Atten= 1%, Lag= 10.9 min Primary = 3.94 cfs @ 13.72 hrs, Volume= 2.707 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Starting Elev= 904.00' Surf.Area= 0.280 ac Storage= 1.260 af Peak Elev= 904.14' @ 13.72 hrs Surf.Area= 0.288 ac Storage= 1.301 af (0.041 af above start) Plug-Flow detention time= 397.3 min calculated for 1.447 af (53% of inflow) Center-of-Mass det. time= 9.7 min ( 1,072.0 - 1,062.3 ) Volume Invert Avail.Storage Storage Description #1 895.00' 2.829 af Custom Stage Data (Prismatic) Listed below (Recalc) Elevation Surf.Area Inc.Store Cum.Store (feet) (acres) (acre-feet) (acre-feet) 895.00 0.000 0.000 0.000 904.00 0.280 1.260 1.260 906.00 0.391 0.671 1.931 908.00 0.507 0.898 2.829 Device Routing Invert Outlet Devices #1 Primary 895.97'54.0" Round Culvert L= 232.0' RCP, square edge headwall, Ke= 0.500 Inlet / Outlet Invert= 895.97' / 894.53' S= 0.0062 '/' Cc= 0.900 n= 0.030 Corrugated metal, Flow Area= 15.90 sf #2 Device 1 904.00'84.0" Horiz. Orifice/Grate C= 0.600 Limited to weir flow at low heads Primary OutFlow Max=3.94 cfs @ 13.72 hrs HW=904.14' TW=0.00' (Dynamic Tailwater) 1=Culvert (Passes 3.94 cfs of 111.31 cfs potential flow) 2=Orifice/Grate (Weir Controls 3.94 cfs @ 1.24 fps) MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 104HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Pond 11.4P: East Pond Inflow Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)4 3 2 1 0 Inflow Area=39.057 ac Peak Elev=904.14' Storage=1.301 af 3.96 cfs 3.94 cfs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 105HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Pond 11P: Drop MHs [40] Hint: Not Described (Outflow=Inflow) Inflow Area = 38.086 ac, 79.22% Impervious, Inflow Depth = 0.80" for 2y 24hr event Inflow = 3.85 cfs @ 13.68 hrs, Volume= 2.543 af Primary = 3.85 cfs @ 13.68 hrs, Volume= 2.543 af, Atten= 0%, Lag= 0.0 min Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Pond 11P: Drop MHs Inflow Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)4 3 2 1 0 Inflow Area=38.086 ac 3.85 cfs 3.85 cfs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 106HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Pond 12P: North Underground Inflow Area = 12.647 ac, 71.03% Impervious, Inflow Depth = 2.21" for 2y 24hr event Inflow = 37.64 cfs @ 12.13 hrs, Volume= 2.328 af Outflow = 1.75 cfs @ 13.64 hrs, Volume= 2.328 af, Atten= 95%, Lag= 90.2 min Discarded = 0.21 cfs @ 6.46 hrs, Volume= 1.411 af Primary = 1.54 cfs @ 13.64 hrs, Volume= 0.917 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 909.57' @ 13.64 hrs Surf.Area= 150,233 sf Storage= 67,744 cf Plug-Flow detention time= 1,295.3 min calculated for 2.327 af (100% of inflow) Center-of-Mass det. time= 1,295.4 min ( 2,067.4 - 772.0 ) Volume Invert Avail.Storage Storage Description #1 908.10' 102,939 cf Custom Stage Data (Prismatic) Listed below (Recalc) 345,536 cf Overall - 2,407 cf Embedded = 343,129 cf x 30.0% Voids #2 910.40' 119,224 cf Custom Stage Data (Prismatic) Listed below (Recalc) 300,466 cf Overall - 2,407 cf Embedded = 298,059 cf x 40.0% Voids #3 908.10' 2,407 cf 8.0" Round Pipe Storage Inside #1 L= 6,895.0' #4 910.40' 2,407 cf 8.0" Round Pipe Storage Inside #2 L= 6,895.0' 226,976 cf Total Available Storage Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 908.10 150,233 0 0 910.40 150,233 345,536 345,536 Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 910.40 150,233 0 0 912.40 150,233 300,466 300,466 Device Routing Invert Outlet Devices #1 Primary 908.10'18.0" Round Culvert L= 840.0' RCP, sq.cut end projecting, Ke= 0.500 Inlet / Outlet Invert= 908.10' / 904.00' S= 0.0049 '/' Cc= 0.900 n= 0.011 Concrete pipe, straight & clean, Flow Area= 1.77 sf #2 Device 1 908.90'12.0" Vert. Infiltration Overflow C= 0.600 #3 Device 1 911.07'12.0" Vert. Filtration Overflow C= 0.600 #4 Discarded 908.10'0.060 in/hr Exfiltration over Surface area Phase-In= 0.01' Discarded OutFlow Max=0.21 cfs @ 6.46 hrs HW=908.11' (Free Discharge) 4=Exfiltration (Exfiltration Controls 0.21 cfs) Primary OutFlow Max=1.54 cfs @ 13.64 hrs HW=909.57' TW=0.00' (Dynamic Tailwater) 1=Culvert (Passes 1.54 cfs of 7.24 cfs potential flow) 2=Infiltration Overflow (Orifice Controls 1.54 cfs @ 2.78 fps) 3=Filtration Overflow ( Controls 0.00 cfs) MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 107HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Pond 12P: North Underground Inflow Outflow Discarded Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)42 40 38 36 34 32 30 28 26 24 22 20 18 16 14 12 10 8 6 4 2 0 Inflow Area=12.647 ac Peak Elev=909.57' Storage=67,744 cf 37.64 cfs 1.75 cfs 0.21 cfs1.54 cfs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 108HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Pond 61P: Englewood Pond [62] Hint: Exceeded Reach 61R OUTLET depth by 0.56' @ 18.36 hrs [62] Hint: Exceeded Reach 62R OUTLET depth by 0.73' @ 15.44 hrs Inflow Area = 69.583 ac, 44.34% Impervious, Inflow Depth = 1.08" for 2y 24hr event Inflow = 60.52 cfs @ 12.15 hrs, Volume= 6.258 af Outflow = 4.94 cfs @ 15.36 hrs, Volume= 6.205 af, Atten= 92%, Lag= 192.4 min Primary = 4.94 cfs @ 15.36 hrs, Volume= 6.205 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 892.86' @ 15.36 hrs Surf.Area= 145,630 sf Storage= 121,701 cf Plug-Flow detention time= 747.7 min calculated for 6.205 af (99% of inflow) Center-of-Mass det. time= 740.1 min ( 1,675.3 - 935.1 ) Volume Invert Avail.Storage Storage Description #1 892.00' 1,031,055 cf Custom Stage Data (Prismatic) Listed below (Recalc) Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 892.00 136,580 0 0 895.00 168,060 456,960 456,960 898.00 214,670 574,095 1,031,055 Device Routing Invert Outlet Devices #1 Primary 892.00'42.0" Round Culvert L= 29.0' RCP, square edge headwall, Ke= 0.500 Inlet / Outlet Invert= 892.00' / 891.71' S= 0.0100 '/' Cc= 0.900 n= 0.013 Concrete pipe, straight & clean, Flow Area= 9.62 sf #2 Device 1 887.63'42.0" Round Culvert L= 13.0' RCP, end-section conforming to fill, Ke= 0.500 Inlet / Outlet Invert= 887.50' / 887.63' S= -0.0100 '/' Cc= 0.900 n= 0.013 Concrete pipe, straight & clean, Flow Area= 9.62 sf Primary OutFlow Max=4.94 cfs @ 15.36 hrs HW=892.86' TW=890.90' (Dynamic Tailwater) 1=Culvert (Barrel Controls 4.94 cfs @ 4.04 fps) 2=Culvert (Passes 4.94 cfs of 43.02 cfs potential flow) MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 109HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Pond 61P: Englewood Pond Inflow Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)65 60 55 50 45 40 35 30 25 20 15 10 5 0 Inflow Area=69.583 ac Peak Elev=892.86' Storage=121,701 cf 60.52 cfs 4.94 cfs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 110HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Pond 65P: Fresh MDW Inflow Area = 12.140 ac, 3.62% Impervious, Inflow Depth = 1.22" for 2y 24hr event Inflow = 17.19 cfs @ 12.14 hrs, Volume= 1.236 af Outflow = 4.58 cfs @ 12.60 hrs, Volume= 1.082 af, Atten= 73%, Lag= 27.9 min Primary = 4.58 cfs @ 12.60 hrs, Volume= 1.082 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 897.28' @ 12.60 hrs Surf.Area= 21,640 sf Storage= 25,704 cf Plug-Flow detention time= 281.3 min calculated for 1.082 af (88% of inflow) Center-of-Mass det. time= 225.0 min ( 1,035.9 - 810.9 ) Volume Invert Avail.Storage Storage Description #1 896.00' 123,320 cf Custom Stage Data (Prismatic) Listed below (Recalc) Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 896.00 18,540 0 0 900.00 28,230 93,540 93,540 901.00 31,330 29,780 123,320 Device Routing Invert Outlet Devices #1 Primary 892.35'12.0" Round Culvert L= 35.0' RCP, square edge headwall, Ke= 0.500 Inlet / Outlet Invert= 892.00' / 892.35' S= -0.0100 '/' Cc= 0.900 n= 0.012, Flow Area= 0.79 sf #2 Device 1 896.35'33.0" Round Culvert L= 69.0' RCP, end-section conforming to fill, Ke= 0.500 Inlet / Outlet Invert= 896.35' / 896.01' S= 0.0049 '/' Cc= 0.900 n= 0.012 Concrete pipe, finished, Flow Area= 5.94 sf Primary OutFlow Max=4.58 cfs @ 12.60 hrs HW=897.28' TW=890.36' (Dynamic Tailwater) 1=Culvert (Passes 4.58 cfs of 7.96 cfs potential flow) 2=Culvert (Barrel Controls 4.58 cfs @ 3.87 fps) MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 111HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Pond 65P: Fresh MDW Inflow Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 Inflow Area=12.140 ac Peak Elev=897.28' Storage=25,704 cf 17.19 cfs 4.58 cfs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 112HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Pond 68P: East MNDOT M10 Wetland Inflow Area = 98.723 ac, 31.70% Impervious, Inflow Depth = 1.03" for 2y 24hr event Inflow = 20.65 cfs @ 12.16 hrs, Volume= 8.458 af Outflow = 1.09 cfs @ 31.68 hrs, Volume= 5.147 af, Atten= 95%, Lag= 1,171.3 min Primary = 1.09 cfs @ 31.68 hrs, Volume= 5.147 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 891.59' @ 31.68 hrs Surf.Area= 282,932 sf Storage= 276,991 cf Plug-Flow detention time= 3,535.1 min calculated for 5.147 af (61% of inflow) Center-of-Mass det. time= 2,993.8 min ( 4,473.4 - 1,479.5 ) Volume Invert Avail.Storage Storage Description #1 890.00' 1,574,445 cf Custom Stage Data (Prismatic) Listed below (Recalc) Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 890.00 68,660 0 0 891.00 198,790 133,725 133,725 892.00 340,250 269,520 403,245 895.00 440,550 1,171,200 1,574,445 Device Routing Invert Outlet Devices #1 Primary 890.30'18.0" Round Culvert L= 155.0' RCP, square edge headwall, Ke= 0.500 Inlet / Outlet Invert= 890.30' / 889.53' S= 0.0050 '/' Cc= 0.900 n= 0.013 Concrete pipe, straight & clean, Flow Area= 1.77 sf #2 Device 1 891.00'10.0" Vert. Orifice/Grate C= 0.600 #3 Device 2 890.50'18.0" Round Culvert L= 40.0' RCP, end-section conforming to fill, Ke= 0.500 Inlet / Outlet Invert= 890.30' / 890.50' S= -0.0050 '/' Cc= 0.900 n= 0.013 Concrete pipe, straight & clean, Flow Area= 1.77 sf Primary OutFlow Max=1.09 cfs @ 31.68 hrs HW=891.59' (Free Discharge) 1=Culvert (Passes 1.09 cfs of 5.18 cfs potential flow) 2=Orifice/Grate (Orifice Controls 1.09 cfs @ 2.63 fps) 3=Culvert (Passes 1.09 cfs of 3.81 cfs potential flow) MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 113HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Pond 68P: East MNDOT M10 Wetland Inflow Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 Inflow Area=98.723 ac Peak Elev=891.59' Storage=276,991 cf 20.65 cfs 1.09 cfs MN-Snowmelt_10d_100yr 10 day Snowmelt Rainfall=7.20", AMC=4Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 114HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Time span=0.00-360.00 hrs, dt=0.01 hrs, 36001 points Runoff by SCS TR-20 method, UH=SCS, Weighted-Q Reach routing by Dyn-Stor-Ind method - Pond routing by Dyn-Stor-Ind method Runoff Area=614,104 sf 81.42% Impervious Runoff Depth=6.96"Subcatchment 11.1S: North Tc=10.0 min AMC Adjusted CN=WQ Runoff=2.69 cfs 8.178 af Runoff Area=494,016 sf 85.62% Impervious Runoff Depth=6.96"Subcatchment 11.3S: East Tc=10.0 min AMC Adjusted CN=WQ Runoff=2.17 cfs 6.579 af Runoff Area=42,316 sf 59.09% Impervious Runoff Depth=6.96"Subcatchment 11.4S: East Pond Tc=5.0 min AMC Adjusted CN=WQ Runoff=0.19 cfs 0.563 af Runoff Area=35,675 sf 0.00% Impervious Runoff Depth=6.96"Subcatchment 11oS: From Powers Flow Length=94' Slope=0.0430 '/' Tc=10.6 min AMC Adjusted CN=98 Runoff=0.16 cfs 0.475 af Runoff Area=550,898 sf 71.03% Impervious Runoff Depth=6.96"Subcatchment 12S: Central Tc=10.0 min AMC Adjusted CN=WQ Runoff=2.41 cfs 7.336 af Runoff Area=4,669 sf 100.00% Impervious Runoff Depth=6.96"Subcatchment 16oS: East Offsite Tc=5.0 min CN=98 Runoff=0.02 cfs 0.062 af Runoff Area=9.400 ac 0.00% Impervious Runoff Depth=6.96"Subcatchment 61S: Powers (from SRF) Tc=9.0 min AMC Adjusted CN=98 Runoff=1.80 cfs 5.453 af Runoff Area=4.200 ac 0.00% Impervious Runoff Depth=6.96"Subcatchment 62S: NE Ramp (from SRF) Tc=8.0 min AMC Adjusted CN=98 Runoff=0.80 cfs 2.436 af Runoff Area=8.200 ac 0.00% Impervious Runoff Depth=6.96"Subcatchment 63S: TH 212 (from SRF) Tc=12.0 min AMC Adjusted CN=98 Runoff=1.56 cfs 4.757 af Runoff Area=7.800 ac 0.00% Impervious Runoff Depth=6.96"Subcatchment 64S: Englewood (from SRF) Tc=10.0 min AMC Adjusted CN=98 Runoff=1.49 cfs 4.524 af Runoff Area=6.400 ac 0.00% Impervious Runoff Depth=6.96"Subcatchment 65S: LYMLP (from SRF) Tc=15.0 min AMC Adjusted CN=98 Runoff=1.22 cfs 3.712 af Runoff Area=1.900 ac 0.00% Impervious Runoff Depth=6.96"Subcatchment 66S: N54 (from SRF) Tc=7.6 min AMC Adjusted CN=98 Runoff=0.36 cfs 1.102 af Runoff Area=0.440 ac 100.00% Impervious Runoff Depth=7.20"Subcatchment 67-1S: Fresh MDW Tc=7.0 min CN=100 Runoff=0.08 cfs 0.264 af Runoff Area=1.100 ac 0.00% Impervious Runoff Depth=6.96"Subcatchment 67-2S: Fresh MDW Subcatch Tc=7.0 min AMC Adjusted CN=98 Runoff=0.21 cfs 0.638 af Runoff Area=2.300 ac 0.00% Impervious Runoff Depth=6.96"Subcatchment 67-3S: Fresh MDW Subcatch Tc=83.0 min AMC Adjusted CN=98 Runoff=0.42 cfs 1.334 af Runoff Area=17.000 ac 0.00% Impervious Runoff Depth=6.96"Subcatchment 68S: M10 Tc=10.0 min AMC Adjusted CN=98 Runoff=3.25 cfs 9.861 af MN-Snowmelt_10d_100yr 10 day Snowmelt Rainfall=7.20", AMC=4Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 115HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Inflow=3.68 cfs 7.164 afReach 10R: Lake Susan Drainage Outflow=3.68 cfs 7.164 af Avg. Flow Depth=0.36' Max Vel=1.48 fps Inflow=4.90 cfs 12.617 afReach 61R: NERDITCH n=0.035 L=545.0' S=0.0055 '/' Capacity=737.08 cfs Outflow=4.90 cfs 12.617 af Avg. Flow Depth=0.29' Max Vel=2.81 fps Inflow=0.80 cfs 2.436 afReach 62R: L42 24.0" Round Pipe n=0.012 L=200.0' S=0.0050 '/' Capacity=17.33 cfs Outflow=0.80 cfs 2.436 af Peak Elev=910.79' Storage=81,906 cf Inflow=2.69 cfs 8.178 afPond 11.1P: North Underground Discarded=0.27 cfs 5.986 af Primary=1.26 cfs 2.192 af Outflow=1.53 cfs 8.178 af Peak Elev=906.24' Storage=66,283 cf Inflow=2.17 cfs 6.579 afPond 11.3P: North Underground Discarded=0.24 cfs 5.242 af Primary=0.76 cfs 1.336 af Outflow=1.00 cfs 6.579 af Peak Elev=904.14' Storage=1.298 af Inflow=3.58 cfs 6.627 afPond 11.4P: East Pond Outflow=3.58 cfs 6.627 af Inflow=3.47 cfs 6.064 afPond 11P: Drop MHs Primary=3.47 cfs 6.064 af Peak Elev=909.57' Storage=67,830 cf Inflow=2.41 cfs 7.336 afPond 12P: North Underground Discarded=0.21 cfs 4.800 af Primary=1.55 cfs 2.536 af Outflow=1.76 cfs 7.336 af Peak Elev=892.99' Storage=140,777 cf Inflow=8.31 cfs 24.334 afPond 61P: Englewood Pond Outflow=6.36 cfs 24.214 af Peak Elev=896.97' Storage=19,184 cf Inflow=2.28 cfs 7.051 afPond 65P: Fresh MDW Outflow=2.17 cfs 6.894 af Peak Elev=892.83' Storage=696,394 cf Inflow=10.28 cfs 40.969 afPond 68P: East MNDOT M10 Wetland Outflow=3.12 cfs 37.148 af Total Runoff Area = 98.723 ac Runoff Volume = 57.275 af Average Runoff Depth = 6.96" 68.30% Pervious = 67.430 ac 31.70% Impervious = 31.293 ac MN-Snowmelt_10d_100yr 10 day Snowmelt Rainfall=7.20", AMC=4Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 116HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 11.1S: North Runoff = 2.69 cfs @ 121.30 hrs, Volume= 8.178 af, Depth= 6.96" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-Snowmelt_10d_100yr 10 day Snowmelt Rainfall=7.20", AMC=4 Area (sf) CN Adj Description 114,104 80 98 >75% Grass cover, Good, HSG D * 500,000 98 98 Paved parking & roofs, HSG D 614,104 Weighted Average 114,104 80 98 18.58% Pervious Area, AMC Adjusted 500,000 98 98 81.42% Impervious Area, AMC Adjusted Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 10.0 Direct Entry, Subcatchment 11.1S: North Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)3 2 1 0 MN-Snowmelt_10d_100yr 10 day Snowmelt Rainfall=7.20" AMC=4 Runoff Area=614,104 sf Runoff Volume=8.178 af Runoff Depth=6.96" Tc=10.0 min AMC Adjusted CN=WQ 2.69 cfs MN-Snowmelt_10d_100yr 10 day Snowmelt Rainfall=7.20", AMC=4Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 117HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 11.3S: East Runoff = 2.17 cfs @ 121.30 hrs, Volume= 6.579 af, Depth= 6.96" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-Snowmelt_10d_100yr 10 day Snowmelt Rainfall=7.20", AMC=4 Area (sf) CN Adj Description 71,016 80 98 >75% Grass cover, Good, HSG D * 423,000 98 98 Paved & Roofs, HSG D 494,016 Weighted Average 71,016 80 98 14.38% Pervious Area, AMC Adjusted 423,000 98 98 85.62% Impervious Area, AMC Adjusted Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 10.0 Direct Entry, Subcatchment 11.3S: East Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)2 1 0 MN-Snowmelt_10d_100yr 10 day Snowmelt Rainfall=7.20" AMC=4 Runoff Area=494,016 sf Runoff Volume=6.579 af Runoff Depth=6.96" Tc=10.0 min AMC Adjusted CN=WQ 2.17 cfs MN-Snowmelt_10d_100yr 10 day Snowmelt Rainfall=7.20", AMC=4Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 118HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 11.4S: East Pond Runoff = 0.19 cfs @ 121.24 hrs, Volume= 0.563 af, Depth= 6.96" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-Snowmelt_10d_100yr 10 day Snowmelt Rainfall=7.20", AMC=4 Area (sf) CN Adj Description 17,312 80 98 >75% Grass cover, Good, HSG D 19,254 98 98 Water Surface, HSG D 5,750 98 98 Roofs, HSG D 42,316 Weighted Average 17,312 80 98 40.91% Pervious Area, AMC Adjusted 25,004 98 98 59.09% Impervious Area, AMC Adjusted Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 5.0 Direct Entry, Subcatchment 11.4S: East Pond Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.2 0.19 0.18 0.17 0.16 0.15 0.14 0.13 0.12 0.11 0.1 0.09 0.08 0.07 0.06 0.05 0.04 0.03 0.02 0.01 0 MN-Snowmelt_10d_100yr 10 day Snowmelt Rainfall=7.20" AMC=4 Runoff Area=42,316 sf Runoff Volume=0.563 af Runoff Depth=6.96" Tc=5.0 min AMC Adjusted CN=WQ 0.19 cfs MN-Snowmelt_10d_100yr 10 day Snowmelt Rainfall=7.20", AMC=4Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 119HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 11oS: From Powers Runoff = 0.16 cfs @ 121.30 hrs, Volume= 0.475 af, Depth= 6.96" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-Snowmelt_10d_100yr 10 day Snowmelt Rainfall=7.20", AMC=4 Area (sf) CN Adj Description 35,675 80 98 >75% Grass cover, Good, HSG D 35,675 Weighted Average 35,675 80 98 100.00% Pervious Area, AMC Adjusted Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 10.6 94 0.0430 0.15 Sheet Flow, Grass: Dense n= 0.240 P2= 2.87" Subcatchment 11oS: From Powers Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.17 0.16 0.15 0.14 0.13 0.12 0.11 0.1 0.09 0.08 0.07 0.06 0.05 0.04 0.03 0.02 0.01 0 MN-Snowmelt_10d_100yr 10 day Snowmelt Rainfall=7.20" AMC=4 Runoff Area=35,675 sf Runoff Volume=0.475 af Runoff Depth=6.96" Flow Length=94' Slope=0.0430 '/' Tc=10.6 min AMC Adjusted CN=98 0.16 cfs MN-Snowmelt_10d_100yr 10 day Snowmelt Rainfall=7.20", AMC=4Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 120HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 12S: Central Runoff = 2.41 cfs @ 121.30 hrs, Volume= 7.336 af, Depth= 6.96" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-Snowmelt_10d_100yr 10 day Snowmelt Rainfall=7.20", AMC=4 Area (sf) CN Adj Description 159,598 80 98 >75% Grass cover, Good, HSG D 391,300 98 98 Paved parking, HSG D 550,898 Weighted Average 159,598 80 98 28.97% Pervious Area, AMC Adjusted 391,300 98 98 71.03% Impervious Area, AMC Adjusted Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 10.0 Direct Entry, Subcatchment 12S: Central Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)2 1 0 MN-Snowmelt_10d_100yr 10 day Snowmelt Rainfall=7.20" AMC=4 Runoff Area=550,898 sf Runoff Volume=7.336 af Runoff Depth=6.96" Tc=10.0 min AMC Adjusted CN=WQ 2.41 cfs MN-Snowmelt_10d_100yr 10 day Snowmelt Rainfall=7.20", AMC=4Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 121HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 16oS: East Offsite Runoff = 0.02 cfs @ 121.24 hrs, Volume= 0.062 af, Depth= 6.96" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-Snowmelt_10d_100yr 10 day Snowmelt Rainfall=7.20", AMC=4 Area (sf) CN Description 4,669 98 Paved parking, HSG D 4,669 98 100.00% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 5.0 Direct Entry, Subcatchment 16oS: East Offsite Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.022 0.021 0.02 0.019 0.018 0.017 0.016 0.015 0.014 0.013 0.012 0.011 0.01 0.009 0.008 0.007 0.006 0.005 0.004 0.003 0.002 0.001 0 MN-Snowmelt_10d_100yr 10 day Snowmelt Rainfall=7.20" AMC=4 Runoff Area=4,669 sf Runoff Volume=0.062 af Runoff Depth=6.96" Tc=5.0 min CN=98 0.02 cfs MN-Snowmelt_10d_100yr 10 day Snowmelt Rainfall=7.20", AMC=4Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 122HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 61S: Powers (from SRF) Runoff = 1.80 cfs @ 121.29 hrs, Volume= 5.453 af, Depth= 6.96" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-Snowmelt_10d_100yr 10 day Snowmelt Rainfall=7.20", AMC=4 Area (ac) CN Adj Description * 9.400 87 98 Weighted 9.400 Weighted Average 9.400 87 98 100.00% Pervious Area, AMC Adjusted Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 9.0 Direct Entry, Subcatchment 61S: Powers (from SRF) Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)2 1 0 MN-Snowmelt_10d_100yr 10 day Snowmelt Rainfall=7.20" AMC=4 Runoff Area=9.400 ac Runoff Volume=5.453 af Runoff Depth=6.96" Tc=9.0 min AMC Adjusted CN=98 1.80 cfs MN-Snowmelt_10d_100yr 10 day Snowmelt Rainfall=7.20", AMC=4Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 123HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 62S: NE Ramp (from SRF) Runoff = 0.80 cfs @ 121.27 hrs, Volume= 2.436 af, Depth= 6.96" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-Snowmelt_10d_100yr 10 day Snowmelt Rainfall=7.20", AMC=4 Area (ac) CN Adj Description * 4.200 81 98 Weighted 4.200 Weighted Average 4.200 81 98 100.00% Pervious Area, AMC Adjusted Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 8.0 Direct Entry, Subcatchment 62S: NE Ramp (from SRF) Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.85 0.8 0.75 0.7 0.65 0.6 0.55 0.5 0.45 0.4 0.35 0.3 0.25 0.2 0.15 0.1 0.05 0 MN-Snowmelt_10d_100yr 10 day Snowmelt Rainfall=7.20" AMC=4 Runoff Area=4.200 ac Runoff Volume=2.436 af Runoff Depth=6.96" Tc=8.0 min AMC Adjusted CN=98 0.80 cfs MN-Snowmelt_10d_100yr 10 day Snowmelt Rainfall=7.20", AMC=4Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 124HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 63S: TH 212 (from SRF) Runoff = 1.56 cfs @ 121.32 hrs, Volume= 4.757 af, Depth= 6.96" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-Snowmelt_10d_100yr 10 day Snowmelt Rainfall=7.20", AMC=4 Area (ac) CN Adj Description * 8.200 87 98 Weighted 8.200 Weighted Average 8.200 87 98 100.00% Pervious Area, AMC Adjusted Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 12.0 Direct Entry, Subcatchment 63S: TH 212 (from SRF) Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)1 0 MN-Snowmelt_10d_100yr 10 day Snowmelt Rainfall=7.20" AMC=4 Runoff Area=8.200 ac Runoff Volume=4.757 af Runoff Depth=6.96" Tc=12.0 min AMC Adjusted CN=98 1.56 cfs MN-Snowmelt_10d_100yr 10 day Snowmelt Rainfall=7.20", AMC=4Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 125HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 64S: Englewood (from SRF) Runoff = 1.49 cfs @ 121.30 hrs, Volume= 4.524 af, Depth= 6.96" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-Snowmelt_10d_100yr 10 day Snowmelt Rainfall=7.20", AMC=4 Area (ac) CN Adj Description * 7.800 77 98 Weighted 7.800 Weighted Average 7.800 77 98 100.00% Pervious Area, AMC Adjusted Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 10.0 Direct Entry, Subcatchment 64S: Englewood (from SRF) Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)1 0 MN-Snowmelt_10d_100yr 10 day Snowmelt Rainfall=7.20" AMC=4 Runoff Area=7.800 ac Runoff Volume=4.524 af Runoff Depth=6.96" Tc=10.0 min AMC Adjusted CN=98 1.49 cfs MN-Snowmelt_10d_100yr 10 day Snowmelt Rainfall=7.20", AMC=4Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 126HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 65S: LYMLP (from SRF) Runoff = 1.22 cfs @ 121.35 hrs, Volume= 3.712 af, Depth= 6.96" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-Snowmelt_10d_100yr 10 day Snowmelt Rainfall=7.20", AMC=4 Area (ac) CN Adj Description * 6.400 83 98 Weighted 6.400 Weighted Average 6.400 83 98 100.00% Pervious Area, AMC Adjusted Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 15.0 Direct Entry, Subcatchment 65S: LYMLP (from SRF) Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)1 0 MN-Snowmelt_10d_100yr 10 day Snowmelt Rainfall=7.20" AMC=4 Runoff Area=6.400 ac Runoff Volume=3.712 af Runoff Depth=6.96" Tc=15.0 min AMC Adjusted CN=98 1.22 cfs MN-Snowmelt_10d_100yr 10 day Snowmelt Rainfall=7.20", AMC=4Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 127HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 66S: N54 (from SRF) Runoff = 0.36 cfs @ 121.27 hrs, Volume= 1.102 af, Depth= 6.96" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-Snowmelt_10d_100yr 10 day Snowmelt Rainfall=7.20", AMC=4 Area (ac) CN Adj Description * 1.900 94 98 Weighted 1.900 Weighted Average 1.900 94 98 100.00% Pervious Area, AMC Adjusted Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 7.6 Direct Entry, Subcatchment 66S: N54 (from SRF) Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.4 0.38 0.36 0.34 0.32 0.3 0.28 0.26 0.24 0.22 0.2 0.18 0.16 0.14 0.12 0.1 0.08 0.06 0.04 0.02 0 MN-Snowmelt_10d_100yr 10 day Snowmelt Rainfall=7.20" AMC=4 Runoff Area=1.900 ac Runoff Volume=1.102 af Runoff Depth=6.96" Tc=7.6 min AMC Adjusted CN=98 0.36 cfs MN-Snowmelt_10d_100yr 10 day Snowmelt Rainfall=7.20", AMC=4Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 128HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 67-1S: Fresh MDW Subcatch 1 (from SRF) Runoff = 0.08 cfs @ 121.26 hrs, Volume= 0.264 af, Depth= 7.20" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-Snowmelt_10d_100yr 10 day Snowmelt Rainfall=7.20", AMC=4 Area (ac) CN Description * 0.440 100 Weighted 0.440 100 100.00% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 7.0 Direct Entry, Subcatchment 67-1S: Fresh MDW Subcatch 1 (from SRF) Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.09 0.085 0.08 0.075 0.07 0.065 0.06 0.055 0.05 0.045 0.04 0.035 0.03 0.025 0.02 0.015 0.01 0.005 0 MN-Snowmelt_10d_100yr 10 day Snowmelt Rainfall=7.20" AMC=4 Runoff Area=0.440 ac Runoff Volume=0.264 af Runoff Depth=7.20" Tc=7.0 min CN=100 0.08 cfs MN-Snowmelt_10d_100yr 10 day Snowmelt Rainfall=7.20", AMC=4Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 129HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 67-2S: Fresh MDW Subcatch 2 (from SRF) Runoff = 0.21 cfs @ 121.26 hrs, Volume= 0.638 af, Depth= 6.96" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-Snowmelt_10d_100yr 10 day Snowmelt Rainfall=7.20", AMC=4 Area (ac) CN Adj Description * 1.100 71 98 Weighted 1.100 Weighted Average 1.100 71 98 100.00% Pervious Area, AMC Adjusted Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 7.0 Direct Entry, Subcatchment 67-2S: Fresh MDW Subcatch 2 (from SRF) Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.23 0.22 0.21 0.2 0.19 0.18 0.17 0.16 0.15 0.14 0.13 0.12 0.11 0.1 0.09 0.08 0.07 0.06 0.05 0.04 0.03 0.02 0.01 0 MN-Snowmelt_10d_100yr 10 day Snowmelt Rainfall=7.20" AMC=4 Runoff Area=1.100 ac Runoff Volume=0.638 af Runoff Depth=6.96" Tc=7.0 min AMC Adjusted CN=98 0.21 cfs MN-Snowmelt_10d_100yr 10 day Snowmelt Rainfall=7.20", AMC=4Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 130HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 67-3S: Fresh MDW Subcatch 3 (from SRF) Runoff = 0.42 cfs @ 122.19 hrs, Volume= 1.334 af, Depth= 6.96" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-Snowmelt_10d_100yr 10 day Snowmelt Rainfall=7.20", AMC=4 Area (ac) CN Adj Description * 2.300 10 98 Weighted 2.300 Weighted Average 2.300 10 98 100.00% Pervious Area, AMC Adjusted Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 83.0 Direct Entry, Subcatchment 67-3S: Fresh MDW Subcatch 3 (from SRF) Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.46 0.44 0.42 0.4 0.38 0.36 0.34 0.32 0.3 0.28 0.26 0.24 0.22 0.2 0.18 0.16 0.14 0.12 0.1 0.08 0.06 0.04 0.02 0 MN-Snowmelt_10d_100yr 10 day Snowmelt Rainfall=7.20" AMC=4 Runoff Area=2.300 ac Runoff Volume=1.334 af Runoff Depth=6.96" Tc=83.0 min AMC Adjusted CN=98 0.42 cfs MN-Snowmelt_10d_100yr 10 day Snowmelt Rainfall=7.20", AMC=4Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 131HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 68S: M10 Runoff = 3.25 cfs @ 121.30 hrs, Volume= 9.861 af, Depth= 6.96" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-Snowmelt_10d_100yr 10 day Snowmelt Rainfall=7.20", AMC=4 Area (ac) CN Adj Description * 17.000 74 98 Weighted 17.000 Weighted Average 17.000 74 98 100.00% Pervious Area, AMC Adjusted Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 10.0 Direct Entry, Subcatchment 68S: M10 Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)3 2 1 0 MN-Snowmelt_10d_100yr 10 day Snowmelt Rainfall=7.20" AMC=4 Runoff Area=17.000 ac Runoff Volume=9.861 af Runoff Depth=6.96" Tc=10.0 min AMC Adjusted CN=98 3.25 cfs MN-Snowmelt_10d_100yr 10 day Snowmelt Rainfall=7.20", AMC=4Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 132HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Reach 10R: Lake Susan Drainage [40] Hint: Not Described (Outflow=Inflow) Inflow Area = 39.983 ac, 77.17% Impervious, Inflow Depth = 2.15" for 10 day Snowmelt event Inflow = 3.68 cfs @ 124.03 hrs, Volume= 7.164 af Outflow = 3.68 cfs @ 124.03 hrs, Volume= 7.164 af, Atten= 0%, Lag= 0.0 min Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Reach 10R: Lake Susan Drainage Inflow Outflow Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)4 3 2 1 0 Inflow Area=39.983 ac 3.68 cfs 3.68 cfs MN-Snowmelt_10d_100yr 10 day Snowmelt Rainfall=7.20", AMC=4Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 133HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Reach 61R: NERDITCH Inflow Area = 49.383 ac, 62.48% Impervious, Inflow Depth = 3.07" for 10 day Snowmelt event Inflow = 4.90 cfs @ 122.93 hrs, Volume= 12.617 af Outflow = 4.90 cfs @ 122.98 hrs, Volume= 12.617 af, Atten= 0%, Lag= 3.1 min Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Max. Velocity= 1.48 fps, Min. Travel Time= 6.1 min Avg. Velocity = 0.63 fps, Avg. Travel Time= 14.5 min Peak Storage= 1,803 cf @ 122.98 hrs Average Depth at Peak Storage= 0.36' Bank-Full Depth= 5.00' Flow Area= 115.0 sf, Capacity= 737.08 cfs 8.00' x 5.00' deep channel, n= 0.035 Side Slope Z-value= 3.0 '/' Top Width= 38.00' Length= 545.0' Slope= 0.0055 '/' Inlet Invert= 895.00', Outlet Invert= 892.00' ‡ Reach 61R: NERDITCH Inflow Outflow Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)5 4 3 2 1 0 Inflow Area=49.383 ac Avg. Flow Depth=0.36' Max Vel=1.48 fps n=0.035 L=545.0' S=0.0055 '/' Capacity=737.08 cfs 4.90 cfs 4.90 cfs MN-Snowmelt_10d_100yr 10 day Snowmelt Rainfall=7.20", AMC=4Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 134HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Reach 62R: L42 [52] Hint: Inlet/Outlet conditions not evaluated Inflow Area = 4.200 ac, 0.00% Impervious, Inflow Depth = 6.96" for 10 day Snowmelt event Inflow = 0.80 cfs @ 121.27 hrs, Volume= 2.436 af Outflow = 0.80 cfs @ 121.29 hrs, Volume= 2.436 af, Atten= 0%, Lag= 1.1 min Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Max. Velocity= 2.81 fps, Min. Travel Time= 1.2 min Avg. Velocity = 1.53 fps, Avg. Travel Time= 2.2 min Peak Storage= 57 cf @ 121.29 hrs Average Depth at Peak Storage= 0.29' Bank-Full Depth= 2.00' Flow Area= 3.1 sf, Capacity= 17.33 cfs 24.0" Round Pipe n= 0.012 Length= 200.0' Slope= 0.0050 '/' Inlet Invert= 893.00', Outlet Invert= 892.00' Reach 62R: L42 Inflow Outflow Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.85 0.8 0.75 0.7 0.65 0.6 0.55 0.5 0.45 0.4 0.35 0.3 0.25 0.2 0.15 0.1 0.05 0 Inflow Area=4.200 ac Avg. Flow Depth=0.29' Max Vel=2.81 fps 24.0" Round Pipe n=0.012 L=200.0' S=0.0050 '/' Capacity=17.33 cfs 0.80 cfs 0.80 cfs MN-Snowmelt_10d_100yr 10 day Snowmelt Rainfall=7.20", AMC=4Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 135HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Pond 11.1P: North Underground Inflow Area = 14.098 ac, 81.42% Impervious, Inflow Depth = 6.96" for 10 day Snowmelt event Inflow = 2.69 cfs @ 121.30 hrs, Volume= 8.178 af Outflow = 1.53 cfs @ 124.42 hrs, Volume= 8.178 af, Atten= 43%, Lag= 187.5 min Discarded = 0.27 cfs @ 41.95 hrs, Volume= 5.986 af Primary = 1.26 cfs @ 124.42 hrs, Volume= 2.192 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 910.79' @ 124.42 hrs Surf.Area= 191,215 sf Storage= 81,906 cf Plug-Flow detention time= 1,555.0 min calculated for 8.177 af (100% of inflow) Center-of-Mass det. time= 1,555.1 min ( 8,940.7 - 7,385.6 ) Volume Invert Avail.Storage Storage Description #1 909.40' 131,019 cf Custom Stage Data (Prismatic) Listed below (Recalc) 439,795 cf Overall - 3,063 cf Embedded = 436,731 cf x 30.0% Voids #2 911.70' 151,747 cf Custom Stage Data (Prismatic) Listed below (Recalc) 382,430 cf Overall - 3,063 cf Embedded = 379,367 cf x 40.0% Voids #3 909.40' 3,063 cf 8.0" Round Pipe Storage Inside #1 L= 8,776.0' #4 911.70' 3,063 cf 8.0" Round Pipe Storage Inside #2 L= 8,776.0' 288,893 cf Total Available Storage Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 909.40 191,215 0 0 911.70 191,215 439,795 439,795 Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 911.70 191,215 0 0 913.70 191,215 382,430 382,430 Device Routing Invert Outlet Devices #1 Primary 909.40'18.0" Round Culvert L= 212.0' RCP, sq.cut end projecting, Ke= 0.500 Inlet / Outlet Invert= 909.40' / 907.92' S= 0.0070 '/' Cc= 0.900 n= 0.011 Concrete pipe, straight & clean, Flow Area= 1.77 sf #2 Device 1 910.20'12.0" Vert. Infiltration Overflow C= 0.600 #3 Device 1 912.37'12.0" Vert. Filtration Overflow C= 0.600 #4 Discarded 909.40'0.060 in/hr Exfiltration over Surface area Phase-In= 0.01' Discarded OutFlow Max=0.27 cfs @ 41.95 hrs HW=909.41' (Free Discharge) 4=Exfiltration (Exfiltration Controls 0.27 cfs) Primary OutFlow Max=1.26 cfs @ 124.42 hrs HW=910.79' TW=0.00' (Dynamic Tailwater) 1=Culvert (Passes 1.26 cfs of 6.86 cfs potential flow) 2=Infiltration Overflow (Orifice Controls 1.26 cfs @ 2.62 fps) 3=Filtration Overflow ( Controls 0.00 cfs) MN-Snowmelt_10d_100yr 10 day Snowmelt Rainfall=7.20", AMC=4Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 136HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Pond 11.1P: North Underground Inflow Outflow Discarded Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)3 2 1 0 Inflow Area=14.098 ac Peak Elev=910.79' Storage=81,906 cf 2.69 cfs 1.53 cfs 0.27 cfs 1.26 cfs MN-Snowmelt_10d_100yr 10 day Snowmelt Rainfall=7.20", AMC=4Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 137HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Pond 11.3P: North Underground Inflow Area = 11.341 ac, 85.62% Impervious, Inflow Depth = 6.96" for 10 day Snowmelt event Inflow = 2.17 cfs @ 121.30 hrs, Volume= 6.579 af Outflow = 1.00 cfs @ 125.66 hrs, Volume= 6.579 af, Atten= 54%, Lag= 261.4 min Discarded = 0.24 cfs @ 54.26 hrs, Volume= 5.242 af Primary = 0.76 cfs @ 125.66 hrs, Volume= 1.336 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 906.24' @ 125.66 hrs Surf.Area= 172,601 sf Storage= 66,283 cf Plug-Flow detention time= 1,560.5 min calculated for 6.578 af (100% of inflow) Center-of-Mass det. time= 1,560.5 min ( 8,946.1 - 7,385.6 ) Volume Invert Avail.Storage Storage Description #1 905.00' 118,265 cf Custom Stage Data (Prismatic) Listed below (Recalc) 396,982 cf Overall - 2,765 cf Embedded = 394,217 cf x 30.0% Voids #2 907.30' 136,975 cf Custom Stage Data (Prismatic) Listed below (Recalc) 345,202 cf Overall - 2,765 cf Embedded = 342,437 cf x 40.0% Voids #3 905.00' 2,765 cf 8.0" Round Pipe Storage Inside #1 L= 7,922.0' #4 907.30' 2,765 cf 8.0" Round Pipe Storage Inside #2 L= 7,922.0' 260,770 cf Total Available Storage Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 905.00 172,601 0 0 907.30 172,601 396,982 396,982 Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 907.30 172,601 0 0 909.30 172,601 345,202 345,202 Device Routing Invert Outlet Devices #1 Primary 905.00'18.0" Round Culvert L= 150.0' RCP, sq.cut end projecting, Ke= 0.500 Inlet / Outlet Invert= 905.00' / 904.00' S= 0.0067 '/' Cc= 0.900 n= 0.011 Concrete pipe, straight & clean, Flow Area= 1.77 sf #2 Device 1 905.80'12.0" Vert. Infiltration Overflow C= 0.600 #3 Device 1 907.97'12.0" Vert. Filtration Overflow C= 0.600 #4 Discarded 905.00'0.060 in/hr Exfiltration over Surface area Phase-In= 0.01' Discarded OutFlow Max=0.24 cfs @ 54.26 hrs HW=905.01' (Free Discharge) 4=Exfiltration (Exfiltration Controls 0.24 cfs) Primary OutFlow Max=0.76 cfs @ 125.66 hrs HW=906.24' TW=0.00' (Dynamic Tailwater) 1=Culvert (Passes 0.76 cfs of 5.94 cfs potential flow) 2=Infiltration Overflow (Orifice Controls 0.76 cfs @ 2.27 fps) 3=Filtration Overflow ( Controls 0.00 cfs) MN-Snowmelt_10d_100yr 10 day Snowmelt Rainfall=7.20", AMC=4Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 138HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Pond 11.3P: North Underground Inflow Outflow Discarded Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)2 1 0 Inflow Area=11.341 ac Peak Elev=906.24' Storage=66,283 cf 2.17 cfs 1.00 cfs 0.24 cfs 0.76 cfs MN-Snowmelt_10d_100yr 10 day Snowmelt Rainfall=7.20", AMC=4Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 139HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Pond 11.4P: East Pond Inflow Area = 39.057 ac, 78.72% Impervious, Inflow Depth = 2.04" for 10 day Snowmelt event Inflow = 3.58 cfs @ 124.06 hrs, Volume= 6.627 af Outflow = 3.58 cfs @ 124.15 hrs, Volume= 6.627 af, Atten= 0%, Lag= 5.5 min Primary = 3.58 cfs @ 124.15 hrs, Volume= 6.627 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Starting Elev= 904.00' Surf.Area= 0.280 ac Storage= 1.260 af Peak Elev= 904.14' @ 124.15 hrs Surf.Area= 0.288 ac Storage= 1.298 af (0.038 af above start) Plug-Flow detention time= 937.7 min calculated for 5.367 af (81% of inflow) Center-of-Mass det. time= 12.6 min ( 8,321.1 - 8,308.5 ) Volume Invert Avail.Storage Storage Description #1 895.00' 2.829 af Custom Stage Data (Prismatic) Listed below (Recalc) Elevation Surf.Area Inc.Store Cum.Store (feet) (acres) (acre-feet) (acre-feet) 895.00 0.000 0.000 0.000 904.00 0.280 1.260 1.260 906.00 0.391 0.671 1.931 908.00 0.507 0.898 2.829 Device Routing Invert Outlet Devices #1 Primary 895.97'54.0" Round Culvert L= 232.0' RCP, square edge headwall, Ke= 0.500 Inlet / Outlet Invert= 895.97' / 894.53' S= 0.0062 '/' Cc= 0.900 n= 0.030 Corrugated metal, Flow Area= 15.90 sf #2 Device 1 904.00'84.0" Horiz. Orifice/Grate C= 0.600 Limited to weir flow at low heads Primary OutFlow Max=3.58 cfs @ 124.15 hrs HW=904.14' TW=0.00' (Dynamic Tailwater) 1=Culvert (Passes 3.58 cfs of 111.21 cfs potential flow) 2=Orifice/Grate (Weir Controls 3.58 cfs @ 1.20 fps) MN-Snowmelt_10d_100yr 10 day Snowmelt Rainfall=7.20", AMC=4Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 140HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Pond 11.4P: East Pond Inflow Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)4 3 2 1 0 Inflow Area=39.057 ac Peak Elev=904.14' Storage=1.298 af 3.58 cfs 3.58 cfs MN-Snowmelt_10d_100yr 10 day Snowmelt Rainfall=7.20", AMC=4Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 141HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Pond 11P: Drop MHs [40] Hint: Not Described (Outflow=Inflow) Inflow Area = 38.086 ac, 79.22% Impervious, Inflow Depth = 1.91" for 10 day Snowmelt event Inflow = 3.47 cfs @ 124.17 hrs, Volume= 6.064 af Primary = 3.47 cfs @ 124.17 hrs, Volume= 6.064 af, Atten= 0%, Lag= 0.0 min Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Pond 11P: Drop MHs Inflow Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)3 2 1 0 Inflow Area=38.086 ac 3.47 cfs 3.47 cfs MN-Snowmelt_10d_100yr 10 day Snowmelt Rainfall=7.20", AMC=4Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 142HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Pond 12P: North Underground Inflow Area = 12.647 ac, 71.03% Impervious, Inflow Depth = 6.96" for 10 day Snowmelt event Inflow = 2.41 cfs @ 121.30 hrs, Volume= 7.336 af Outflow = 1.76 cfs @ 123.09 hrs, Volume= 7.336 af, Atten= 27%, Lag= 107.3 min Discarded = 0.21 cfs @ 29.23 hrs, Volume= 4.800 af Primary = 1.55 cfs @ 123.09 hrs, Volume= 2.536 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 909.57' @ 123.09 hrs Surf.Area= 150,233 sf Storage= 67,830 cf Plug-Flow detention time= 1,490.3 min calculated for 7.336 af (100% of inflow) Center-of-Mass det. time= 1,490.3 min ( 8,875.9 - 7,385.6 ) Volume Invert Avail.Storage Storage Description #1 908.10' 102,939 cf Custom Stage Data (Prismatic) Listed below (Recalc) 345,536 cf Overall - 2,407 cf Embedded = 343,129 cf x 30.0% Voids #2 910.40' 119,224 cf Custom Stage Data (Prismatic) Listed below (Recalc) 300,466 cf Overall - 2,407 cf Embedded = 298,059 cf x 40.0% Voids #3 908.10' 2,407 cf 8.0" Round Pipe Storage Inside #1 L= 6,895.0' #4 910.40' 2,407 cf 8.0" Round Pipe Storage Inside #2 L= 6,895.0' 226,976 cf Total Available Storage Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 908.10 150,233 0 0 910.40 150,233 345,536 345,536 Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 910.40 150,233 0 0 912.40 150,233 300,466 300,466 Device Routing Invert Outlet Devices #1 Primary 908.10'18.0" Round Culvert L= 840.0' RCP, sq.cut end projecting, Ke= 0.500 Inlet / Outlet Invert= 908.10' / 904.00' S= 0.0049 '/' Cc= 0.900 n= 0.011 Concrete pipe, straight & clean, Flow Area= 1.77 sf #2 Device 1 908.90'12.0" Vert. Infiltration Overflow C= 0.600 #3 Device 1 911.07'12.0" Vert. Filtration Overflow C= 0.600 #4 Discarded 908.10'0.060 in/hr Exfiltration over Surface area Phase-In= 0.01' Discarded OutFlow Max=0.21 cfs @ 29.23 hrs HW=908.11' (Free Discharge) 4=Exfiltration (Exfiltration Controls 0.21 cfs) Primary OutFlow Max=1.55 cfs @ 123.09 hrs HW=909.57' TW=0.00' (Dynamic Tailwater) 1=Culvert (Passes 1.55 cfs of 7.25 cfs potential flow) 2=Infiltration Overflow (Orifice Controls 1.55 cfs @ 2.78 fps) 3=Filtration Overflow ( Controls 0.00 cfs) MN-Snowmelt_10d_100yr 10 day Snowmelt Rainfall=7.20", AMC=4Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 143HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Pond 12P: North Underground Inflow Outflow Discarded Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)2 1 0 Inflow Area=12.647 ac Peak Elev=909.57' Storage=67,830 cf 2.41 cfs 1.76 cfs 0.21 cfs 1.55 cfs MN-Snowmelt_10d_100yr 10 day Snowmelt Rainfall=7.20", AMC=4Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 144HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Pond 61P: Englewood Pond [62] Hint: Exceeded Reach 61R OUTLET depth by 0.74' @ 143.89 hrs [62] Hint: Exceeded Reach 62R OUTLET depth by 0.80' @ 128.44 hrs Inflow Area = 69.583 ac, 44.34% Impervious, Inflow Depth = 4.20" for 10 day Snowmelt event Inflow = 8.31 cfs @ 121.48 hrs, Volume= 24.334 af Outflow = 6.36 cfs @ 125.33 hrs, Volume= 24.214 af, Atten= 23%, Lag= 231.3 min Primary = 6.36 cfs @ 125.33 hrs, Volume= 24.214 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 892.99' @ 125.33 hrs Surf.Area= 146,998 sf Storage= 140,777 cf Plug-Flow detention time= 916.5 min calculated for 24.214 af (100% of inflow) Center-of-Mass det. time= 883.3 min ( 8,529.6 - 7,646.3 ) Volume Invert Avail.Storage Storage Description #1 892.00' 1,031,055 cf Custom Stage Data (Prismatic) Listed below (Recalc) Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 892.00 136,580 0 0 895.00 168,060 456,960 456,960 898.00 214,670 574,095 1,031,055 Device Routing Invert Outlet Devices #1 Primary 892.00'42.0" Round Culvert L= 29.0' RCP, square edge headwall, Ke= 0.500 Inlet / Outlet Invert= 892.00' / 891.71' S= 0.0100 '/' Cc= 0.900 n= 0.013 Concrete pipe, straight & clean, Flow Area= 9.62 sf #2 Device 1 887.63'42.0" Round Culvert L= 13.0' RCP, end-section conforming to fill, Ke= 0.500 Inlet / Outlet Invert= 887.50' / 887.63' S= -0.0100 '/' Cc= 0.900 n= 0.013 Concrete pipe, straight & clean, Flow Area= 9.62 sf Primary OutFlow Max=6.36 cfs @ 125.33 hrs HW=892.99' TW=892.44' (Dynamic Tailwater) 1=Culvert (Barrel Controls 6.36 cfs @ 4.25 fps) 2=Culvert (Passes 6.36 cfs of 34.38 cfs potential flow) MN-Snowmelt_10d_100yr 10 day Snowmelt Rainfall=7.20", AMC=4Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 145HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Pond 61P: Englewood Pond Inflow Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)9 8 7 6 5 4 3 2 1 0 Inflow Area=69.583 ac Peak Elev=892.99' Storage=140,777 cf 8.31 cfs 6.36 cfs MN-Snowmelt_10d_100yr 10 day Snowmelt Rainfall=7.20", AMC=4Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 146HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Pond 65P: Fresh MDW Inflow Area = 12.140 ac, 3.62% Impervious, Inflow Depth = 6.97" for 10 day Snowmelt event Inflow = 2.28 cfs @ 121.32 hrs, Volume= 7.051 af Outflow = 2.17 cfs @ 121.85 hrs, Volume= 6.894 af, Atten= 5%, Lag= 32.2 min Primary = 2.17 cfs @ 121.85 hrs, Volume= 6.894 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 896.97' @ 121.85 hrs Surf.Area= 20,897 sf Storage= 19,184 cf Plug-Flow detention time= 510.3 min calculated for 6.894 af (98% of inflow) Center-of-Mass det. time= 357.9 min ( 7,750.8 - 7,392.9 ) Volume Invert Avail.Storage Storage Description #1 896.00' 123,320 cf Custom Stage Data (Prismatic) Listed below (Recalc) Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 896.00 18,540 0 0 900.00 28,230 93,540 93,540 901.00 31,330 29,780 123,320 Device Routing Invert Outlet Devices #1 Primary 892.35'12.0" Round Culvert L= 35.0' RCP, square edge headwall, Ke= 0.500 Inlet / Outlet Invert= 892.00' / 892.35' S= -0.0100 '/' Cc= 0.900 n= 0.012, Flow Area= 0.79 sf #2 Device 1 896.35'33.0" Round Culvert L= 69.0' RCP, end-section conforming to fill, Ke= 0.500 Inlet / Outlet Invert= 896.35' / 896.01' S= 0.0049 '/' Cc= 0.900 n= 0.012 Concrete pipe, finished, Flow Area= 5.94 sf Primary OutFlow Max=2.17 cfs @ 121.85 hrs HW=896.97' TW=892.17' (Dynamic Tailwater) 1=Culvert (Passes 2.17 cfs of 7.68 cfs potential flow) 2=Culvert (Barrel Controls 2.17 cfs @ 3.24 fps) MN-Snowmelt_10d_100yr 10 day Snowmelt Rainfall=7.20", AMC=4Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 147HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Pond 65P: Fresh MDW Inflow Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)2 1 0 Inflow Area=12.140 ac Peak Elev=896.97' Storage=19,184 cf 2.28 cfs 2.17 cfs MN-Snowmelt_10d_100yr 10 day Snowmelt Rainfall=7.20", AMC=4Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 148HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Pond 68P: East MNDOT M10 Wetland Inflow Area = 98.723 ac, 31.70% Impervious, Inflow Depth > 4.98" for 10 day Snowmelt event Inflow = 10.28 cfs @ 122.50 hrs, Volume= 40.969 af Outflow = 3.12 cfs @ 143.22 hrs, Volume= 37.148 af, Atten= 70%, Lag= 1,243.0 min Primary = 3.12 cfs @ 143.22 hrs, Volume= 37.148 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 892.83' @ 143.22 hrs Surf.Area= 367,929 sf Storage= 696,394 cf Plug-Flow detention time= 3,446.7 min calculated for 37.148 af (91% of inflow) Center-of-Mass det. time= 2,846.3 min ( 10,969.5 - 8,123.2 ) Volume Invert Avail.Storage Storage Description #1 890.00' 1,574,445 cf Custom Stage Data (Prismatic) Listed below (Recalc) Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 890.00 68,660 0 0 891.00 198,790 133,725 133,725 892.00 340,250 269,520 403,245 895.00 440,550 1,171,200 1,574,445 Device Routing Invert Outlet Devices #1 Primary 890.30'18.0" Round Culvert L= 155.0' RCP, square edge headwall, Ke= 0.500 Inlet / Outlet Invert= 890.30' / 889.53' S= 0.0050 '/' Cc= 0.900 n= 0.013 Concrete pipe, straight & clean, Flow Area= 1.77 sf #2 Device 1 891.00'10.0" Vert. Orifice/Grate C= 0.600 #3 Device 2 890.50'18.0" Round Culvert L= 40.0' RCP, end-section conforming to fill, Ke= 0.500 Inlet / Outlet Invert= 890.30' / 890.50' S= -0.0050 '/' Cc= 0.900 n= 0.013 Concrete pipe, straight & clean, Flow Area= 1.77 sf Primary OutFlow Max=3.12 cfs @ 143.22 hrs HW=892.83' (Free Discharge) 1=Culvert (Passes 3.12 cfs of 9.13 cfs potential flow) 2=Orifice/Grate (Orifice Controls 3.12 cfs @ 5.72 fps) 3=Culvert (Passes 3.12 cfs of 9.62 cfs potential flow) MN-Snowmelt_10d_100yr 10 day Snowmelt Rainfall=7.20", AMC=4Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 149HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Pond 68P: East MNDOT M10 Wetland Inflow Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)11 10 9 8 7 6 5 4 3 2 1 0 Inflow Area=98.723 ac Peak Elev=892.83' Storage=696,394 cf 10.28 cfs 3.12 cfs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 150HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Time span=0.00-360.00 hrs, dt=0.01 hrs, 36001 points Runoff by SCS TR-20 method, UH=SCS, Weighted-Q Reach routing by Dyn-Stor-Ind method - Pond routing by Dyn-Stor-Ind method Runoff Area=614,104 sf 81.42% Impervious Runoff Depth=3.71"Subcatchment 11.1S: North Tc=10.0 min CN=WQ Runoff=70.92 cfs 4.354 af Runoff Area=494,016 sf 85.62% Impervious Runoff Depth=3.78"Subcatchment 11.3S: East Tc=10.0 min CN=WQ Runoff=58.01 cfs 3.573 af Runoff Area=42,316 sf 59.09% Impervious Runoff Depth=3.31"Subcatchment 11.4S: East Pond Tc=5.0 min CN=WQ Runoff=5.66 cfs 0.268 af Runoff Area=35,675 sf 0.00% Impervious Runoff Depth=2.27"Subcatchment 11oS: From Powers Flow Length=94' Slope=0.0430 '/' Tc=10.6 min CN=80 Runoff=2.71 cfs 0.155 af Runoff Area=550,898 sf 71.03% Impervious Runoff Depth=3.52"Subcatchment 12S: Central Tc=10.0 min CN=WQ Runoff=60.99 cfs 3.712 af Runoff Area=4,669 sf 100.00% Impervious Runoff Depth=4.03"Subcatchment 16oS: East Offsite Tc=5.0 min CN=98 Runoff=0.73 cfs 0.036 af Runoff Area=9.400 ac 0.00% Impervious Runoff Depth=2.89"Subcatchment 61S: Powers (from SRF) Tc=9.0 min CN=87 Runoff=42.32 cfs 2.260 af Runoff Area=4.200 ac 0.00% Impervious Runoff Depth=2.35"Subcatchment 62S: NE Ramp (from SRF) Tc=8.0 min CN=81 Runoff=16.23 cfs 0.823 af Runoff Area=8.200 ac 0.00% Impervious Runoff Depth=2.89"Subcatchment 63S: TH 212 (from SRF) Tc=12.0 min CN=87 Runoff=32.44 cfs 1.972 af Runoff Area=7.800 ac 0.00% Impervious Runoff Depth=2.03"Subcatchment 64S: Englewood (from SRF) Tc=10.0 min CN=77 Runoff=23.60 cfs 1.316 af Runoff Area=6.400 ac 0.00% Impervious Runoff Depth=2.52"Subcatchment 65S: LYMLP (from SRF) Tc=15.0 min CN=83 Runoff=19.99 cfs 1.345 af Runoff Area=1.900 ac 0.00% Impervious Runoff Depth=3.59"Subcatchment 66S: N54 (from SRF) Tc=7.6 min CN=94 Runoff=10.86 cfs 0.568 af Runoff Area=0.440 ac 100.00% Impervious Runoff Depth=4.27"Subcatchment 67-1S: Fresh MDW Tc=7.0 min CN=100 Runoff=2.75 cfs 0.157 af Runoff Area=1.100 ac 0.00% Impervious Runoff Depth=1.58"Subcatchment 67-2S: Fresh MDW Subcatch Tc=7.0 min CN=71 Runoff=2.91 cfs 0.145 af Runoff Area=2.300 ac 0.00% Impervious Runoff Depth=0.00"Subcatchment 67-3S: Fresh MDW Subcatch Tc=83.0 min CN=10 Runoff=0.00 cfs 0.000 af Runoff Area=17.000 ac 0.00% Impervious Runoff Depth=1.80"Subcatchment 68S: M10 Tc=10.0 min CN=74 Runoff=45.10 cfs 2.546 af MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 151HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Inflow=11.44 cfs 7.128 afReach 10R: Lake Susan Drainage Outflow=11.44 cfs 7.128 af Avg. Flow Depth=1.29' Max Vel=3.04 fps Inflow=50.13 cfs 9.388 afReach 61R: NERDITCH n=0.035 L=545.0' S=0.0055 '/' Capacity=737.08 cfs Outflow=46.49 cfs 9.388 af Avg. Flow Depth=1.53' Max Vel=6.27 fps Inflow=16.23 cfs 0.823 afReach 62R: L42 24.0" Round Pipe n=0.012 L=200.0' S=0.0050 '/' Capacity=17.33 cfs Outflow=16.13 cfs 0.823 af Peak Elev=911.65' Storage=131,450 cf Inflow=70.92 cfs 4.354 afPond 11.1P: North Underground Discarded=0.27 cfs 1.870 af Primary=3.69 cfs 2.484 af Outflow=3.96 cfs 4.354 af Peak Elev=907.03' Storage=106,913 cf Inflow=58.01 cfs 3.573 afPond 11.3P: North Underground Discarded=0.24 cfs 1.650 af Primary=3.23 cfs 1.923 af Outflow=3.46 cfs 3.573 af Peak Elev=904.29' Storage=1.343 af Inflow=11.09 cfs 6.937 afPond 11.4P: East Pond Outflow=11.06 cfs 6.937 af Inflow=10.76 cfs 6.669 afPond 11P: Drop MHs Primary=10.76 cfs 6.669 af Peak Elev=910.44' Storage=107,811 cf Inflow=60.99 cfs 3.712 afPond 12P: North Underground Discarded=0.42 cfs 1.450 af Primary=3.86 cfs 2.262 af Outflow=4.27 cfs 3.712 af Peak Elev=893.57' Storage=227,124 cf Inflow=116.91 cfs 13.499 afPond 61P: Englewood Pond Outflow=14.22 cfs 13.444 af Peak Elev=898.12' Storage=44,673 cf Inflow=31.73 cfs 2.215 afPond 65P: Fresh MDW Outflow=8.68 cfs 2.061 af Peak Elev=892.48' Storage=570,195 cf Inflow=53.51 cfs 18.050 afPond 68P: East MNDOT M10 Wetland Outflow=2.71 cfs 14.714 af Total Runoff Area = 98.723 ac Runoff Volume = 23.230 af Average Runoff Depth = 2.82" 68.30% Pervious = 67.430 ac 31.70% Impervious = 31.293 ac MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 152HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 11.1S: North Runoff = 70.92 cfs @ 12.13 hrs, Volume= 4.354 af, Depth= 3.71" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Area (sf) CN Description 114,104 80 >75% Grass cover, Good, HSG D * 500,000 98 Paved parking & roofs, HSG D 614,104 Weighted Average 114,104 80 18.58% Pervious Area 500,000 98 81.42% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 10.0 Direct Entry, Subcatchment 11.1S: North Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)75 70 65 60 55 50 45 40 35 30 25 20 15 10 5 0 MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Runoff Area=614,104 sf Runoff Volume=4.354 af Runoff Depth=3.71" Tc=10.0 min CN=WQ 70.92 cfs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 153HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 11.3S: East Runoff = 58.01 cfs @ 12.13 hrs, Volume= 3.573 af, Depth= 3.78" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Area (sf) CN Description 71,016 80 >75% Grass cover, Good, HSG D * 423,000 98 Paved & Roofs, HSG D 494,016 Weighted Average 71,016 80 14.38% Pervious Area 423,000 98 85.62% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 10.0 Direct Entry, Subcatchment 11.3S: East Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)60 55 50 45 40 35 30 25 20 15 10 5 0 MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Runoff Area=494,016 sf Runoff Volume=3.573 af Runoff Depth=3.78" Tc=10.0 min CN=WQ 58.01 cfs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 154HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 11.4S: East Pond Runoff = 5.66 cfs @ 12.07 hrs, Volume= 0.268 af, Depth= 3.31" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Area (sf) CN Description 17,312 80 >75% Grass cover, Good, HSG D 19,254 98 Water Surface, HSG D 5,750 98 Roofs, HSG D 42,316 Weighted Average 17,312 80 40.91% Pervious Area 25,004 98 59.09% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 5.0 Direct Entry, Subcatchment 11.4S: East Pond Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)6 5 4 3 2 1 0 MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Runoff Area=42,316 sf Runoff Volume=0.268 af Runoff Depth=3.31" Tc=5.0 min CN=WQ 5.66 cfs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 155HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 11oS: From Powers Runoff = 2.71 cfs @ 12.15 hrs, Volume= 0.155 af, Depth= 2.27" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Area (sf) CN Description 35,675 80 >75% Grass cover, Good, HSG D 35,675 80 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 10.6 94 0.0430 0.15 Sheet Flow, Grass: Dense n= 0.240 P2= 2.87" Subcatchment 11oS: From Powers Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)3 2 1 0 MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Runoff Area=35,675 sf Runoff Volume=0.155 af Runoff Depth=2.27" Flow Length=94' Slope=0.0430 '/' Tc=10.6 min CN=80 2.71 cfs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 156HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 12S: Central Runoff = 60.99 cfs @ 12.13 hrs, Volume= 3.712 af, Depth= 3.52" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Area (sf) CN Description 159,598 80 >75% Grass cover, Good, HSG D 391,300 98 Paved parking, HSG D 550,898 Weighted Average 159,598 80 28.97% Pervious Area 391,300 98 71.03% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 10.0 Direct Entry, Subcatchment 12S: Central Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)65 60 55 50 45 40 35 30 25 20 15 10 5 0 MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Runoff Area=550,898 sf Runoff Volume=3.712 af Runoff Depth=3.52" Tc=10.0 min CN=WQ 60.99 cfs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 157HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 16oS: East Offsite Runoff = 0.73 cfs @ 12.07 hrs, Volume= 0.036 af, Depth= 4.03" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Area (sf) CN Description 4,669 98 Paved parking, HSG D 4,669 98 100.00% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 5.0 Direct Entry, Subcatchment 16oS: East Offsite Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.8 0.75 0.7 0.65 0.6 0.55 0.5 0.45 0.4 0.35 0.3 0.25 0.2 0.15 0.1 0.05 0 MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Runoff Area=4,669 sf Runoff Volume=0.036 af Runoff Depth=4.03" Tc=5.0 min CN=98 0.73 cfs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 158HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 61S: Powers (from SRF) Runoff = 42.32 cfs @ 12.12 hrs, Volume= 2.260 af, Depth= 2.89" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Area (ac) CN Description * 9.400 87 Weighted 9.400 87 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 9.0 Direct Entry, Subcatchment 61S: Powers (from SRF) Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)46 44 42 40 38 36 34 32 30 28 26 24 22 20 18 16 14 12 10 8 6 4 2 0 MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Runoff Area=9.400 ac Runoff Volume=2.260 af Runoff Depth=2.89" Tc=9.0 min CN=87 42.32 cfs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 159HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 62S: NE Ramp (from SRF) Runoff = 16.23 cfs @ 12.11 hrs, Volume= 0.823 af, Depth= 2.35" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Area (ac) CN Description * 4.200 81 Weighted 4.200 81 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 8.0 Direct Entry, Subcatchment 62S: NE Ramp (from SRF) Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Runoff Area=4.200 ac Runoff Volume=0.823 af Runoff Depth=2.35" Tc=8.0 min CN=81 16.23 cfs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 160HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 63S: TH 212 (from SRF) Runoff = 32.44 cfs @ 12.16 hrs, Volume= 1.972 af, Depth= 2.89" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Area (ac) CN Description * 8.200 87 Weighted 8.200 87 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 12.0 Direct Entry, Subcatchment 63S: TH 212 (from SRF) Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)36 34 32 30 28 26 24 22 20 18 16 14 12 10 8 6 4 2 0 MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Runoff Area=8.200 ac Runoff Volume=1.972 af Runoff Depth=2.89" Tc=12.0 min CN=87 32.44 cfs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 161HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 64S: Englewood (from SRF) Runoff = 23.60 cfs @ 12.14 hrs, Volume= 1.316 af, Depth= 2.03" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Area (ac) CN Description * 7.800 77 Weighted 7.800 77 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 10.0 Direct Entry, Subcatchment 64S: Englewood (from SRF) Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Runoff Area=7.800 ac Runoff Volume=1.316 af Runoff Depth=2.03" Tc=10.0 min CN=77 23.60 cfs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 162HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 65S: LYMLP (from SRF) Runoff = 19.99 cfs @ 12.20 hrs, Volume= 1.345 af, Depth= 2.52" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Area (ac) CN Description * 6.400 83 Weighted 6.400 83 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 15.0 Direct Entry, Subcatchment 65S: LYMLP (from SRF) Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Runoff Area=6.400 ac Runoff Volume=1.345 af Runoff Depth=2.52" Tc=15.0 min CN=83 19.99 cfs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 163HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 66S: N54 (from SRF) Runoff = 10.86 cfs @ 12.10 hrs, Volume= 0.568 af, Depth= 3.59" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Area (ac) CN Description * 1.900 94 Weighted 1.900 94 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 7.6 Direct Entry, Subcatchment 66S: N54 (from SRF) Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)12 11 10 9 8 7 6 5 4 3 2 1 0 MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Runoff Area=1.900 ac Runoff Volume=0.568 af Runoff Depth=3.59" Tc=7.6 min CN=94 10.86 cfs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 164HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 67-1S: Fresh MDW Subcatch 1 (from SRF) Runoff = 2.75 cfs @ 12.09 hrs, Volume= 0.157 af, Depth= 4.27" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Area (ac) CN Description * 0.440 100 Weighted 0.440 100 100.00% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 7.0 Direct Entry, Subcatchment 67-1S: Fresh MDW Subcatch 1 (from SRF) Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)3 2 1 0 MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Runoff Area=0.440 ac Runoff Volume=0.157 af Runoff Depth=4.27" Tc=7.0 min CN=100 2.75 cfs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 165HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 67-2S: Fresh MDW Subcatch 2 (from SRF) Runoff = 2.91 cfs @ 12.10 hrs, Volume= 0.145 af, Depth= 1.58" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Area (ac) CN Description * 1.100 71 Weighted 1.100 71 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 7.0 Direct Entry, Subcatchment 67-2S: Fresh MDW Subcatch 2 (from SRF) Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)3 2 1 0 MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Runoff Area=1.100 ac Runoff Volume=0.145 af Runoff Depth=1.58" Tc=7.0 min CN=71 2.91 cfs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 166HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 67-3S: Fresh MDW Subcatch 3 (from SRF) [45] Hint: Runoff=Zero Runoff = 0.00 cfs @ 0.00 hrs, Volume= 0.000 af, Depth= 0.00" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Area (ac) CN Description * 2.300 10 Weighted 2.300 10 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 83.0 Direct Entry, Subcatchment 67-3S: Fresh MDW Subcatch 3 (from SRF) Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)1 0 MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Runoff Area=2.300 ac Runoff Volume=0.000 af Runoff Depth=0.00" Tc=83.0 min CN=10 0.00 cfs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 167HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 68S: M10 Runoff = 45.10 cfs @ 12.14 hrs, Volume= 2.546 af, Depth= 1.80" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Area (ac) CN Description * 17.000 74 Weighted 17.000 74 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 10.0 Direct Entry, Subcatchment 68S: M10 Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)50 48 46 44 42 40 38 36 34 32 30 28 26 24 22 20 18 16 14 12 10 8 6 4 2 0 MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Runoff Area=17.000 ac Runoff Volume=2.546 af Runoff Depth=1.80" Tc=10.0 min CN=74 45.10 cfs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 168HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Reach 10R: Lake Susan Drainage [40] Hint: Not Described (Outflow=Inflow) Inflow Area = 39.983 ac, 77.17% Impervious, Inflow Depth = 2.14" for 10y 24hr event Inflow = 11.44 cfs @ 13.05 hrs, Volume= 7.128 af Outflow = 11.44 cfs @ 13.05 hrs, Volume= 7.128 af, Atten= 0%, Lag= 0.0 min Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Reach 10R: Lake Susan Drainage Inflow Outflow Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)12 11 10 9 8 7 6 5 4 3 2 1 0 Inflow Area=39.983 ac 11.44 cfs 11.44 cfs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 169HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Reach 61R: NERDITCH Inflow Area = 49.383 ac, 62.48% Impervious, Inflow Depth = 2.28" for 10y 24hr event Inflow = 50.13 cfs @ 12.13 hrs, Volume= 9.388 af Outflow = 46.49 cfs @ 12.16 hrs, Volume= 9.388 af, Atten= 7%, Lag= 2.1 min Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Max. Velocity= 3.04 fps, Min. Travel Time= 3.0 min Avg. Velocity = 0.84 fps, Avg. Travel Time= 10.9 min Peak Storage= 8,339 cf @ 12.16 hrs Average Depth at Peak Storage= 1.29' Bank-Full Depth= 5.00' Flow Area= 115.0 sf, Capacity= 737.08 cfs 8.00' x 5.00' deep channel, n= 0.035 Side Slope Z-value= 3.0 '/' Top Width= 38.00' Length= 545.0' Slope= 0.0055 '/' Inlet Invert= 895.00', Outlet Invert= 892.00' ‡ Reach 61R: NERDITCH Inflow Outflow Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)55 50 45 40 35 30 25 20 15 10 5 0 Inflow Area=49.383 ac Avg. Flow Depth=1.29' Max Vel=3.04 fps n=0.035 L=545.0' S=0.0055 '/' Capacity=737.08 cfs 50.13 cfs 46.49 cfs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 170HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Reach 62R: L42 [52] Hint: Inlet/Outlet conditions not evaluated Inflow Area = 4.200 ac, 0.00% Impervious, Inflow Depth = 2.35" for 10y 24hr event Inflow = 16.23 cfs @ 12.11 hrs, Volume= 0.823 af Outflow = 16.13 cfs @ 12.12 hrs, Volume= 0.823 af, Atten= 1%, Lag= 0.5 min Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Max. Velocity= 6.27 fps, Min. Travel Time= 0.5 min Avg. Velocity = 2.01 fps, Avg. Travel Time= 1.7 min Peak Storage= 515 cf @ 12.12 hrs Average Depth at Peak Storage= 1.53' Bank-Full Depth= 2.00' Flow Area= 3.1 sf, Capacity= 17.33 cfs 24.0" Round Pipe n= 0.012 Length= 200.0' Slope= 0.0050 '/' Inlet Invert= 893.00', Outlet Invert= 892.00' Reach 62R: L42 Inflow Outflow Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 Inflow Area=4.200 ac Avg. Flow Depth=1.53' Max Vel=6.27 fps 24.0" Round Pipe n=0.012 L=200.0' S=0.0050 '/' Capacity=17.33 cfs 16.23 cfs 16.13 cfs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 171HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Pond 11.1P: North Underground Inflow Area = 14.098 ac, 81.42% Impervious, Inflow Depth = 3.71" for 10y 24hr event Inflow = 70.92 cfs @ 12.13 hrs, Volume= 4.354 af Outflow = 3.96 cfs @ 13.60 hrs, Volume= 4.354 af, Atten= 94%, Lag= 87.8 min Discarded = 0.27 cfs @ 6.38 hrs, Volume= 1.870 af Primary = 3.69 cfs @ 13.60 hrs, Volume= 2.484 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 911.65' @ 13.60 hrs Surf.Area= 191,215 sf Storage= 131,450 cf Plug-Flow detention time= 1,070.3 min calculated for 4.354 af (100% of inflow) Center-of-Mass det. time= 1,070.4 min ( 1,826.4 - 756.0 ) Volume Invert Avail.Storage Storage Description #1 909.40' 131,019 cf Custom Stage Data (Prismatic) Listed below (Recalc) 439,795 cf Overall - 3,063 cf Embedded = 436,731 cf x 30.0% Voids #2 911.70' 151,747 cf Custom Stage Data (Prismatic) Listed below (Recalc) 382,430 cf Overall - 3,063 cf Embedded = 379,367 cf x 40.0% Voids #3 909.40' 3,063 cf 8.0" Round Pipe Storage Inside #1 L= 8,776.0' #4 911.70' 3,063 cf 8.0" Round Pipe Storage Inside #2 L= 8,776.0' 288,893 cf Total Available Storage Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 909.40 191,215 0 0 911.70 191,215 439,795 439,795 Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 911.70 191,215 0 0 913.70 191,215 382,430 382,430 Device Routing Invert Outlet Devices #1 Primary 909.40'18.0" Round Culvert L= 212.0' RCP, sq.cut end projecting, Ke= 0.500 Inlet / Outlet Invert= 909.40' / 907.92' S= 0.0070 '/' Cc= 0.900 n= 0.011 Concrete pipe, straight & clean, Flow Area= 1.77 sf #2 Device 1 910.20'12.0" Vert. Infiltration Overflow C= 0.600 #3 Device 1 912.37'12.0" Vert. Filtration Overflow C= 0.600 #4 Discarded 909.40'0.060 in/hr Exfiltration over Surface area Phase-In= 0.01' Discarded OutFlow Max=0.27 cfs @ 6.38 hrs HW=909.41' (Free Discharge) 4=Exfiltration (Exfiltration Controls 0.27 cfs) Primary OutFlow Max=3.69 cfs @ 13.60 hrs HW=911.65' TW=0.00' (Dynamic Tailwater) 1=Culvert (Passes 3.69 cfs of 10.25 cfs potential flow) 2=Infiltration Overflow (Orifice Controls 3.69 cfs @ 4.70 fps) 3=Filtration Overflow ( Controls 0.00 cfs) MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 172HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Pond 11.1P: North Underground Inflow Outflow Discarded Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)75 70 65 60 55 50 45 40 35 30 25 20 15 10 5 0 Inflow Area=14.098 ac Peak Elev=911.65' Storage=131,450 cf 70.92 cfs 3.96 cfs 0.27 cfs3.69 cfs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 173HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Pond 11.3P: North Underground Inflow Area = 11.341 ac, 85.62% Impervious, Inflow Depth = 3.78" for 10y 24hr event Inflow = 58.01 cfs @ 12.13 hrs, Volume= 3.573 af Outflow = 3.46 cfs @ 13.56 hrs, Volume= 3.573 af, Atten= 94%, Lag= 85.6 min Discarded = 0.24 cfs @ 6.42 hrs, Volume= 1.650 af Primary = 3.23 cfs @ 13.56 hrs, Volume= 1.923 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 907.03' @ 13.56 hrs Surf.Area= 172,601 sf Storage= 106,913 cf Plug-Flow detention time= 1,091.1 min calculated for 3.573 af (100% of inflow) Center-of-Mass det. time= 1,091.2 min ( 1,845.8 - 754.6 ) Volume Invert Avail.Storage Storage Description #1 905.00' 118,265 cf Custom Stage Data (Prismatic) Listed below (Recalc) 396,982 cf Overall - 2,765 cf Embedded = 394,217 cf x 30.0% Voids #2 907.30' 136,975 cf Custom Stage Data (Prismatic) Listed below (Recalc) 345,202 cf Overall - 2,765 cf Embedded = 342,437 cf x 40.0% Voids #3 905.00' 2,765 cf 8.0" Round Pipe Storage Inside #1 L= 7,922.0' #4 907.30' 2,765 cf 8.0" Round Pipe Storage Inside #2 L= 7,922.0' 260,770 cf Total Available Storage Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 905.00 172,601 0 0 907.30 172,601 396,982 396,982 Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 907.30 172,601 0 0 909.30 172,601 345,202 345,202 Device Routing Invert Outlet Devices #1 Primary 905.00'18.0" Round Culvert L= 150.0' RCP, sq.cut end projecting, Ke= 0.500 Inlet / Outlet Invert= 905.00' / 904.00' S= 0.0067 '/' Cc= 0.900 n= 0.011 Concrete pipe, straight & clean, Flow Area= 1.77 sf #2 Device 1 905.80'12.0" Vert. Infiltration Overflow C= 0.600 #3 Device 1 907.97'12.0" Vert. Filtration Overflow C= 0.600 #4 Discarded 905.00'0.060 in/hr Exfiltration over Surface area Phase-In= 0.01' Discarded OutFlow Max=0.24 cfs @ 6.42 hrs HW=905.01' (Free Discharge) 4=Exfiltration (Exfiltration Controls 0.24 cfs) Primary OutFlow Max=3.23 cfs @ 13.56 hrs HW=907.03' TW=0.00' (Dynamic Tailwater) 1=Culvert (Passes 3.23 cfs of 9.42 cfs potential flow) 2=Infiltration Overflow (Orifice Controls 3.23 cfs @ 4.11 fps) 3=Filtration Overflow ( Controls 0.00 cfs) MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 174HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Pond 11.3P: North Underground Inflow Outflow Discarded Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)60 55 50 45 40 35 30 25 20 15 10 5 0 Inflow Area=11.341 ac Peak Elev=907.03' Storage=106,913 cf 58.01 cfs 3.46 cfs 0.24 cfs3.23 cfs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 175HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Pond 11.4P: East Pond Inflow Area = 39.057 ac, 78.72% Impervious, Inflow Depth = 2.13" for 10y 24hr event Inflow = 11.09 cfs @ 13.03 hrs, Volume= 6.937 af Outflow = 11.06 cfs @ 13.07 hrs, Volume= 6.937 af, Atten= 0%, Lag= 2.2 min Primary = 11.06 cfs @ 13.07 hrs, Volume= 6.937 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Starting Elev= 904.00' Surf.Area= 0.280 ac Storage= 1.260 af Peak Elev= 904.29' @ 13.07 hrs Surf.Area= 0.296 ac Storage= 1.343 af (0.083 af above start) Plug-Flow detention time= 159.5 min calculated for 5.677 af (82% of inflow) Center-of-Mass det. time= 7.0 min ( 1,031.8 - 1,024.8 ) Volume Invert Avail.Storage Storage Description #1 895.00' 2.829 af Custom Stage Data (Prismatic) Listed below (Recalc) Elevation Surf.Area Inc.Store Cum.Store (feet) (acres) (acre-feet) (acre-feet) 895.00 0.000 0.000 0.000 904.00 0.280 1.260 1.260 906.00 0.391 0.671 1.931 908.00 0.507 0.898 2.829 Device Routing Invert Outlet Devices #1 Primary 895.97'54.0" Round Culvert L= 232.0' RCP, square edge headwall, Ke= 0.500 Inlet / Outlet Invert= 895.97' / 894.53' S= 0.0062 '/' Cc= 0.900 n= 0.030 Corrugated metal, Flow Area= 15.90 sf #2 Device 1 904.00'84.0" Horiz. Orifice/Grate C= 0.600 Limited to weir flow at low heads Primary OutFlow Max=11.06 cfs @ 13.07 hrs HW=904.29' TW=0.00' (Dynamic Tailwater) 1=Culvert (Passes 11.06 cfs of 112.85 cfs potential flow) 2=Orifice/Grate (Weir Controls 11.06 cfs @ 1.75 fps) MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 176HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Pond 11.4P: East Pond Inflow Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)12 11 10 9 8 7 6 5 4 3 2 1 0 Inflow Area=39.057 ac Peak Elev=904.29' Storage=1.343 af 11.09 cfs 11.06 cfs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 177HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Pond 11P: Drop MHs [40] Hint: Not Described (Outflow=Inflow) Inflow Area = 38.086 ac, 79.22% Impervious, Inflow Depth = 2.10" for 10y 24hr event Inflow = 10.76 cfs @ 13.55 hrs, Volume= 6.669 af Primary = 10.76 cfs @ 13.55 hrs, Volume= 6.669 af, Atten= 0%, Lag= 0.0 min Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Pond 11P: Drop MHs Inflow Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)12 11 10 9 8 7 6 5 4 3 2 1 0 Inflow Area=38.086 ac 10.76 cfs 10.76 cfs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 178HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Pond 12P: North Underground Inflow Area = 12.647 ac, 71.03% Impervious, Inflow Depth = 3.52" for 10y 24hr event Inflow = 60.99 cfs @ 12.13 hrs, Volume= 3.712 af Outflow = 4.27 cfs @ 13.21 hrs, Volume= 3.712 af, Atten= 93%, Lag= 64.8 min Discarded = 0.42 cfs @ 12.81 hrs, Volume= 1.450 af Primary = 3.86 cfs @ 13.21 hrs, Volume= 2.262 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 910.44' @ 13.21 hrs Surf.Area= 300,466 sf Storage= 107,811 cf Plug-Flow detention time= 937.2 min calculated for 3.712 af (100% of inflow) Center-of-Mass det. time= 937.3 min ( 1,697.0 - 759.7 ) Volume Invert Avail.Storage Storage Description #1 908.10' 102,939 cf Custom Stage Data (Prismatic) Listed below (Recalc) 345,536 cf Overall - 2,407 cf Embedded = 343,129 cf x 30.0% Voids #2 910.40' 119,224 cf Custom Stage Data (Prismatic) Listed below (Recalc) 300,466 cf Overall - 2,407 cf Embedded = 298,059 cf x 40.0% Voids #3 908.10' 2,407 cf 8.0" Round Pipe Storage Inside #1 L= 6,895.0' #4 910.40' 2,407 cf 8.0" Round Pipe Storage Inside #2 L= 6,895.0' 226,976 cf Total Available Storage Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 908.10 150,233 0 0 910.40 150,233 345,536 345,536 Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 910.40 150,233 0 0 912.40 150,233 300,466 300,466 Device Routing Invert Outlet Devices #1 Primary 908.10'18.0" Round Culvert L= 840.0' RCP, sq.cut end projecting, Ke= 0.500 Inlet / Outlet Invert= 908.10' / 904.00' S= 0.0049 '/' Cc= 0.900 n= 0.011 Concrete pipe, straight & clean, Flow Area= 1.77 sf #2 Device 1 908.90'12.0" Vert. Infiltration Overflow C= 0.600 #3 Device 1 911.07'12.0" Vert. Filtration Overflow C= 0.600 #4 Discarded 908.10'0.060 in/hr Exfiltration over Surface area Phase-In= 0.01' Discarded OutFlow Max=0.42 cfs @ 12.81 hrs HW=910.40' (Free Discharge) 4=Exfiltration (Exfiltration Controls 0.42 cfs) Primary OutFlow Max=3.86 cfs @ 13.21 hrs HW=910.44' TW=0.00' (Dynamic Tailwater) 1=Culvert (Passes 3.86 cfs of 8.92 cfs potential flow) 2=Infiltration Overflow (Orifice Controls 3.86 cfs @ 4.91 fps) 3=Filtration Overflow ( Controls 0.00 cfs) MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 179HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Pond 12P: North Underground Inflow Outflow Discarded Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)65 60 55 50 45 40 35 30 25 20 15 10 5 0 Inflow Area=12.647 ac Peak Elev=910.44' Storage=107,811 cf 60.99 cfs 4.27 cfs 0.42 cfs3.86 cfs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 180HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Pond 61P: Englewood Pond [62] Hint: Exceeded Reach 61R OUTLET depth by 1.00' @ 15.36 hrs [63] Warning: Exceeded Reach 62R INLET depth by 0.39' @ 15.30 hrs Inflow Area = 69.583 ac, 44.34% Impervious, Inflow Depth = 2.33" for 10y 24hr event Inflow = 116.91 cfs @ 12.15 hrs, Volume= 13.499 af Outflow = 14.22 cfs @ 15.09 hrs, Volume= 13.444 af, Atten= 88%, Lag= 176.4 min Primary = 14.22 cfs @ 15.09 hrs, Volume= 13.444 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 893.57' @ 15.09 hrs Surf.Area= 153,038 sf Storage= 227,124 cf Plug-Flow detention time= 546.5 min calculated for 13.444 af (100% of inflow) Center-of-Mass det. time= 542.1 min ( 1,461.7 - 919.6 ) Volume Invert Avail.Storage Storage Description #1 892.00' 1,031,055 cf Custom Stage Data (Prismatic) Listed below (Recalc) Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 892.00 136,580 0 0 895.00 168,060 456,960 456,960 898.00 214,670 574,095 1,031,055 Device Routing Invert Outlet Devices #1 Primary 892.00'42.0" Round Culvert L= 29.0' RCP, square edge headwall, Ke= 0.500 Inlet / Outlet Invert= 892.00' / 891.71' S= 0.0100 '/' Cc= 0.900 n= 0.013 Concrete pipe, straight & clean, Flow Area= 9.62 sf #2 Device 1 887.63'42.0" Round Culvert L= 13.0' RCP, end-section conforming to fill, Ke= 0.500 Inlet / Outlet Invert= 887.50' / 887.63' S= -0.0100 '/' Cc= 0.900 n= 0.013 Concrete pipe, straight & clean, Flow Area= 9.62 sf Primary OutFlow Max=14.22 cfs @ 15.09 hrs HW=893.57' TW=891.62' (Dynamic Tailwater) 1=Culvert (Barrel Controls 14.22 cfs @ 5.01 fps) 2=Culvert (Passes 14.22 cfs of 58.02 cfs potential flow) MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 181HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Pond 61P: Englewood Pond Inflow Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)130 120 110 100 90 80 70 60 50 40 30 20 10 0 Inflow Area=69.583 ac Peak Elev=893.57' Storage=227,124 cf 116.91 cfs 14.22 cfs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 182HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Pond 65P: Fresh MDW Inflow Area = 12.140 ac, 3.62% Impervious, Inflow Depth = 2.19" for 10y 24hr event Inflow = 31.73 cfs @ 12.14 hrs, Volume= 2.215 af Outflow = 8.68 cfs @ 12.60 hrs, Volume= 2.061 af, Atten= 73%, Lag= 27.5 min Primary = 8.68 cfs @ 12.60 hrs, Volume= 2.061 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 898.12' @ 12.60 hrs Surf.Area= 23,668 sf Storage= 44,673 cf Plug-Flow detention time= 179.2 min calculated for 2.061 af (93% of inflow) Center-of-Mass det. time= 147.5 min ( 935.0 - 787.5 ) Volume Invert Avail.Storage Storage Description #1 896.00' 123,320 cf Custom Stage Data (Prismatic) Listed below (Recalc) Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 896.00 18,540 0 0 900.00 28,230 93,540 93,540 901.00 31,330 29,780 123,320 Device Routing Invert Outlet Devices #1 Primary 892.35'12.0" Round Culvert L= 35.0' RCP, square edge headwall, Ke= 0.500 Inlet / Outlet Invert= 892.00' / 892.35' S= -0.0100 '/' Cc= 0.900 n= 0.012, Flow Area= 0.79 sf #2 Device 1 896.35'33.0" Round Culvert L= 69.0' RCP, end-section conforming to fill, Ke= 0.500 Inlet / Outlet Invert= 896.35' / 896.01' S= 0.0049 '/' Cc= 0.900 n= 0.012 Concrete pipe, finished, Flow Area= 5.94 sf Primary OutFlow Max=8.68 cfs @ 12.60 hrs HW=898.12' TW=890.77' (Dynamic Tailwater) 1=Culvert (Inlet Controls 8.68 cfs @ 11.05 fps) 2=Culvert (Passes 8.68 cfs of 14.23 cfs potential flow) MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 183HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Pond 65P: Fresh MDW Inflow Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)34 32 30 28 26 24 22 20 18 16 14 12 10 8 6 4 2 0 Inflow Area=12.140 ac Peak Elev=898.12' Storage=44,673 cf 31.73 cfs 8.68 cfs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 184HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Pond 68P: East MNDOT M10 Wetland Inflow Area = 98.723 ac, 31.70% Impervious, Inflow Depth = 2.19" for 10y 24hr event Inflow = 53.51 cfs @ 12.15 hrs, Volume= 18.050 af Outflow = 2.71 cfs @ 26.89 hrs, Volume= 14.714 af, Atten= 95%, Lag= 884.0 min Primary = 2.71 cfs @ 26.89 hrs, Volume= 14.714 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 892.48' @ 26.89 hrs Surf.Area= 356,277 sf Storage= 570,195 cf Plug-Flow detention time= 2,843.7 min calculated for 14.713 af (82% of inflow) Center-of-Mass det. time= 2,511.9 min ( 3,821.9 - 1,310.0 ) Volume Invert Avail.Storage Storage Description #1 890.00' 1,574,445 cf Custom Stage Data (Prismatic) Listed below (Recalc) Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 890.00 68,660 0 0 891.00 198,790 133,725 133,725 892.00 340,250 269,520 403,245 895.00 440,550 1,171,200 1,574,445 Device Routing Invert Outlet Devices #1 Primary 890.30'18.0" Round Culvert L= 155.0' RCP, square edge headwall, Ke= 0.500 Inlet / Outlet Invert= 890.30' / 889.53' S= 0.0050 '/' Cc= 0.900 n= 0.013 Concrete pipe, straight & clean, Flow Area= 1.77 sf #2 Device 1 891.00'10.0" Vert. Orifice/Grate C= 0.600 #3 Device 2 890.50'18.0" Round Culvert L= 40.0' RCP, end-section conforming to fill, Ke= 0.500 Inlet / Outlet Invert= 890.30' / 890.50' S= -0.0050 '/' Cc= 0.900 n= 0.013 Concrete pipe, straight & clean, Flow Area= 1.77 sf Primary OutFlow Max=2.71 cfs @ 26.89 hrs HW=892.48' (Free Discharge) 1=Culvert (Passes 2.71 cfs of 8.20 cfs potential flow) 2=Orifice/Grate (Orifice Controls 2.71 cfs @ 4.96 fps) 3=Culvert (Passes 2.71 cfs of 7.82 cfs potential flow) MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 185HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Pond 68P: East MNDOT M10 Wetland Inflow Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)55 50 45 40 35 30 25 20 15 10 5 0 Inflow Area=98.723 ac Peak Elev=892.48' Storage=570,195 cf 53.51 cfs 2.71 cfs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 186HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Time span=0.00-360.00 hrs, dt=0.01 hrs, 36001 points Runoff by SCS TR-20 method, UH=SCS, Weighted-Q Reach routing by Dyn-Stor-Ind method - Pond routing by Dyn-Stor-Ind method Runoff Area=614,104 sf 81.42% Impervious Runoff Depth=6.78"Subcatchment 11.1S: North Tc=10.0 min CN=WQ Runoff=119.01 cfs 7.967 af Runoff Area=494,016 sf 85.62% Impervious Runoff Depth=6.87"Subcatchment 11.3S: East Tc=10.0 min CN=WQ Runoff=96.56 cfs 6.492 af Runoff Area=42,316 sf 59.09% Impervious Runoff Depth=6.31"Subcatchment 11.4S: East Pond Tc=5.0 min CN=WQ Runoff=9.91 cfs 0.511 af Runoff Area=35,675 sf 0.00% Impervious Runoff Depth=5.07"Subcatchment 11oS: From Powers Flow Length=94' Slope=0.0430 '/' Tc=10.6 min CN=80 Runoff=5.61 cfs 0.346 af Runoff Area=550,898 sf 71.03% Impervious Runoff Depth=6.56"Subcatchment 12S: Central Tc=10.0 min CN=WQ Runoff=104.49 cfs 6.917 af Runoff Area=4,669 sf 100.00% Impervious Runoff Depth=7.17"Subcatchment 16oS: East Offsite Tc=5.0 min CN=98 Runoff=1.19 cfs 0.064 af Runoff Area=9.400 ac 0.00% Impervious Runoff Depth=5.88"Subcatchment 61S: Powers (from SRF) Tc=9.0 min CN=87 Runoff=77.82 cfs 4.603 af Runoff Area=4.200 ac 0.00% Impervious Runoff Depth=5.19"Subcatchment 62S: NE Ramp (from SRF) Tc=8.0 min CN=81 Runoff=32.86 cfs 1.816 af Runoff Area=8.200 ac 0.00% Impervious Runoff Depth=5.88"Subcatchment 63S: TH 212 (from SRF) Tc=12.0 min CN=87 Runoff=59.82 cfs 4.016 af Runoff Area=7.800 ac 0.00% Impervious Runoff Depth=4.74"Subcatchment 64S: Englewood (from SRF) Tc=10.0 min CN=77 Runoff=51.54 cfs 3.078 af Runoff Area=6.400 ac 0.00% Impervious Runoff Depth=5.42"Subcatchment 65S: LYMLP (from SRF) Tc=15.0 min CN=83 Runoff=39.40 cfs 2.888 af Runoff Area=1.900 ac 0.00% Impervious Runoff Depth=6.70"Subcatchment 66S: N54 (from SRF) Tc=7.6 min CN=94 Runoff=18.18 cfs 1.060 af Runoff Area=0.440 ac 100.00% Impervious Runoff Depth=7.41"Subcatchment 67-1S: Fresh MDW Tc=7.0 min CN=100 Runoff=4.43 cfs 0.272 af Runoff Area=1.100 ac 0.00% Impervious Runoff Depth=4.07"Subcatchment 67-2S: Fresh MDW Subcatch Tc=7.0 min CN=71 Runoff=7.21 cfs 0.373 af Runoff Area=2.300 ac 0.00% Impervious Runoff Depth=0.00"Subcatchment 67-3S: Fresh MDW Subcatch Tc=83.0 min CN=10 Runoff=0.00 cfs 0.000 af Runoff Area=17.000 ac 0.00% Impervious Runoff Depth=4.40"Subcatchment 68S: M10 Tc=10.0 min CN=74 Runoff=104.71 cfs 6.236 af MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 187HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Inflow=24.17 cfs 16.579 afReach 10R: Lake Susan Drainage Outflow=24.17 cfs 16.579 af Avg. Flow Depth=1.89' Max Vel=3.74 fps Inflow=101.77 cfs 21.182 afReach 61R: NERDITCH n=0.035 L=545.0' S=0.0055 '/' Capacity=737.08 cfs Outflow=96.59 cfs 21.182 af Avg. Flow Depth=2.00' Max Vel=6.29 fps Inflow=32.86 cfs 1.816 afReach 62R: L42 24.0" Round Pipe n=0.012 L=200.0' S=0.0050 '/' Capacity=17.33 cfs Outflow=18.89 cfs 1.816 af Peak Elev=913.15' Storage=246,768 cf Inflow=119.01 cfs 7.967 afPond 11.1P: North Underground Discarded=0.53 cfs 2.186 af Primary=7.89 cfs 5.781 af Outflow=8.42 cfs 7.967 af Peak Elev=908.43' Storage=200,557 cf Inflow=96.56 cfs 6.492 afPond 11.3P: North Underground Discarded=0.48 cfs 1.891 af Primary=6.32 cfs 4.601 af Outflow=6.80 cfs 6.492 af Peak Elev=904.47' Storage=1.399 af Inflow=23.50 cfs 16.169 afPond 11.4P: East Pond Outflow=23.47 cfs 16.169 af Inflow=22.85 cfs 15.658 afPond 11P: Drop MHs Primary=22.85 cfs 15.658 af Peak Elev=912.01' Storage=203,641 cf Inflow=104.49 cfs 6.917 afPond 12P: North Underground Discarded=0.42 cfs 1.641 af Primary=8.65 cfs 5.277 af Outflow=9.06 cfs 6.917 af Peak Elev=894.89' Storage=438,295 cf Inflow=224.39 cfs 30.092 afPond 61P: Englewood Pond Outflow=39.36 cfs 30.024 af Peak Elev=900.32' Storage=102,625 cf Inflow=60.84 cfs 4.593 afPond 65P: Fresh MDW Outflow=10.33 cfs 4.439 af Peak Elev=894.17' Storage=1,221,049 cf Inflow=126.42 cfs 40.699 afPond 68P: East MNDOT M10 Wetland Outflow=4.36 cfs 37.278 af Total Runoff Area = 98.723 ac Runoff Volume = 46.639 af Average Runoff Depth = 5.67" 68.30% Pervious = 67.430 ac 31.70% Impervious = 31.293 ac MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 188HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 11.1S: North Runoff = 119.01 cfs @ 12.13 hrs, Volume= 7.967 af, Depth= 6.78" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Area (sf) CN Description 114,104 80 >75% Grass cover, Good, HSG D * 500,000 98 Paved parking & roofs, HSG D 614,104 Weighted Average 114,104 80 18.58% Pervious Area 500,000 98 81.42% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 10.0 Direct Entry, Subcatchment 11.1S: North Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)130 120 110 100 90 80 70 60 50 40 30 20 10 0 MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Runoff Area=614,104 sf Runoff Volume=7.967 af Runoff Depth=6.78" Tc=10.0 min CN=WQ 119.01 cfs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 189HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 11.3S: East Runoff = 96.56 cfs @ 12.13 hrs, Volume= 6.492 af, Depth= 6.87" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Area (sf) CN Description 71,016 80 >75% Grass cover, Good, HSG D * 423,000 98 Paved & Roofs, HSG D 494,016 Weighted Average 71,016 80 14.38% Pervious Area 423,000 98 85.62% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 10.0 Direct Entry, Subcatchment 11.3S: East Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)105 100 95 90 85 80 75 70 65 60 55 50 45 40 35 30 25 20 15 10 5 0 MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Runoff Area=494,016 sf Runoff Volume=6.492 af Runoff Depth=6.87" Tc=10.0 min CN=WQ 96.56 cfs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 190HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 11.4S: East Pond Runoff = 9.91 cfs @ 12.07 hrs, Volume= 0.511 af, Depth= 6.31" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Area (sf) CN Description 17,312 80 >75% Grass cover, Good, HSG D 19,254 98 Water Surface, HSG D 5,750 98 Roofs, HSG D 42,316 Weighted Average 17,312 80 40.91% Pervious Area 25,004 98 59.09% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 5.0 Direct Entry, Subcatchment 11.4S: East Pond Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)11 10 9 8 7 6 5 4 3 2 1 0 MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Runoff Area=42,316 sf Runoff Volume=0.511 af Runoff Depth=6.31" Tc=5.0 min CN=WQ 9.91 cfs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 191HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 11oS: From Powers Runoff = 5.61 cfs @ 12.14 hrs, Volume= 0.346 af, Depth= 5.07" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Area (sf) CN Description 35,675 80 >75% Grass cover, Good, HSG D 35,675 80 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 10.6 94 0.0430 0.15 Sheet Flow, Grass: Dense n= 0.240 P2= 2.87" Subcatchment 11oS: From Powers Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)6 5 4 3 2 1 0 MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Runoff Area=35,675 sf Runoff Volume=0.346 af Runoff Depth=5.07" Flow Length=94' Slope=0.0430 '/' Tc=10.6 min CN=80 5.61 cfs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 192HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 12S: Central Runoff = 104.49 cfs @ 12.13 hrs, Volume= 6.917 af, Depth= 6.56" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Area (sf) CN Description 159,598 80 >75% Grass cover, Good, HSG D 391,300 98 Paved parking, HSG D 550,898 Weighted Average 159,598 80 28.97% Pervious Area 391,300 98 71.03% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 10.0 Direct Entry, Subcatchment 12S: Central Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)115 110 105 100 95 90 85 80 75 70 65 60 55 50 45 40 35 30 25 20 15 10 5 0 MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Runoff Area=550,898 sf Runoff Volume=6.917 af Runoff Depth=6.56" Tc=10.0 min CN=WQ 104.49 cfs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 193HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 16oS: East Offsite Runoff = 1.19 cfs @ 12.07 hrs, Volume= 0.064 af, Depth= 7.17" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Area (sf) CN Description 4,669 98 Paved parking, HSG D 4,669 98 100.00% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 5.0 Direct Entry, Subcatchment 16oS: East Offsite Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)1 0 MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Runoff Area=4,669 sf Runoff Volume=0.064 af Runoff Depth=7.17" Tc=5.0 min CN=98 1.19 cfs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 194HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 61S: Powers (from SRF) Runoff = 77.82 cfs @ 12.12 hrs, Volume= 4.603 af, Depth= 5.88" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Area (ac) CN Description * 9.400 87 Weighted 9.400 87 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 9.0 Direct Entry, Subcatchment 61S: Powers (from SRF) Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)85 80 75 70 65 60 55 50 45 40 35 30 25 20 15 10 5 0 MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Runoff Area=9.400 ac Runoff Volume=4.603 af Runoff Depth=5.88" Tc=9.0 min CN=87 77.82 cfs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 195HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 62S: NE Ramp (from SRF) Runoff = 32.86 cfs @ 12.11 hrs, Volume= 1.816 af, Depth= 5.19" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Area (ac) CN Description * 4.200 81 Weighted 4.200 81 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 8.0 Direct Entry, Subcatchment 62S: NE Ramp (from SRF) Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)36 34 32 30 28 26 24 22 20 18 16 14 12 10 8 6 4 2 0 MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Runoff Area=4.200 ac Runoff Volume=1.816 af Runoff Depth=5.19" Tc=8.0 min CN=81 32.86 cfs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 196HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 63S: TH 212 (from SRF) Runoff = 59.82 cfs @ 12.16 hrs, Volume= 4.016 af, Depth= 5.88" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Area (ac) CN Description * 8.200 87 Weighted 8.200 87 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 12.0 Direct Entry, Subcatchment 63S: TH 212 (from SRF) Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)65 60 55 50 45 40 35 30 25 20 15 10 5 0 MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Runoff Area=8.200 ac Runoff Volume=4.016 af Runoff Depth=5.88" Tc=12.0 min CN=87 59.82 cfs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 197HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 64S: Englewood (from SRF) Runoff = 51.54 cfs @ 12.14 hrs, Volume= 3.078 af, Depth= 4.74" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Area (ac) CN Description * 7.800 77 Weighted 7.800 77 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 10.0 Direct Entry, Subcatchment 64S: Englewood (from SRF) Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)55 50 45 40 35 30 25 20 15 10 5 0 MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Runoff Area=7.800 ac Runoff Volume=3.078 af Runoff Depth=4.74" Tc=10.0 min CN=77 51.54 cfs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 198HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 65S: LYMLP (from SRF) Runoff = 39.40 cfs @ 12.20 hrs, Volume= 2.888 af, Depth= 5.42" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Area (ac) CN Description * 6.400 83 Weighted 6.400 83 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 15.0 Direct Entry, Subcatchment 65S: LYMLP (from SRF) Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)44 42 40 38 36 34 32 30 28 26 24 22 20 18 16 14 12 10 8 6 4 2 0 MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Runoff Area=6.400 ac Runoff Volume=2.888 af Runoff Depth=5.42" Tc=15.0 min CN=83 39.40 cfs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 199HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 66S: N54 (from SRF) Runoff = 18.18 cfs @ 12.10 hrs, Volume= 1.060 af, Depth= 6.70" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Area (ac) CN Description * 1.900 94 Weighted 1.900 94 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 7.6 Direct Entry, Subcatchment 66S: N54 (from SRF) Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Runoff Area=1.900 ac Runoff Volume=1.060 af Runoff Depth=6.70" Tc=7.6 min CN=94 18.18 cfs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 200HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 67-1S: Fresh MDW Subcatch 1 (from SRF) Runoff = 4.43 cfs @ 12.09 hrs, Volume= 0.272 af, Depth= 7.41" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Area (ac) CN Description * 0.440 100 Weighted 0.440 100 100.00% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 7.0 Direct Entry, Subcatchment 67-1S: Fresh MDW Subcatch 1 (from SRF) Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)4 3 2 1 0 MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Runoff Area=0.440 ac Runoff Volume=0.272 af Runoff Depth=7.41" Tc=7.0 min CN=100 4.43 cfs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 201HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 67-2S: Fresh MDW Subcatch 2 (from SRF) Runoff = 7.21 cfs @ 12.10 hrs, Volume= 0.373 af, Depth= 4.07" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Area (ac) CN Description * 1.100 71 Weighted 1.100 71 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 7.0 Direct Entry, Subcatchment 67-2S: Fresh MDW Subcatch 2 (from SRF) Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)8 7 6 5 4 3 2 1 0 MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Runoff Area=1.100 ac Runoff Volume=0.373 af Runoff Depth=4.07" Tc=7.0 min CN=71 7.21 cfs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 202HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 67-3S: Fresh MDW Subcatch 3 (from SRF) [45] Hint: Runoff=Zero Runoff = 0.00 cfs @ 0.00 hrs, Volume= 0.000 af, Depth= 0.00" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Area (ac) CN Description * 2.300 10 Weighted 2.300 10 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 83.0 Direct Entry, Subcatchment 67-3S: Fresh MDW Subcatch 3 (from SRF) Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)1 0 MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Runoff Area=2.300 ac Runoff Volume=0.000 af Runoff Depth=0.00" Tc=83.0 min CN=10 0.00 cfs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 203HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 68S: M10 Runoff = 104.71 cfs @ 12.14 hrs, Volume= 6.236 af, Depth= 4.40" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Area (ac) CN Description * 17.000 74 Weighted 17.000 74 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 10.0 Direct Entry, Subcatchment 68S: M10 Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)115 110 105 100 95 90 85 80 75 70 65 60 55 50 45 40 35 30 25 20 15 10 5 0 MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Runoff Area=17.000 ac Runoff Volume=6.236 af Runoff Depth=4.40" Tc=10.0 min CN=74 104.71 cfs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 204HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Reach 10R: Lake Susan Drainage [40] Hint: Not Described (Outflow=Inflow) Inflow Area = 39.983 ac, 77.17% Impervious, Inflow Depth = 4.98" for 100y 24hr event Inflow = 24.17 cfs @ 12.14 hrs, Volume= 16.579 af Outflow = 24.17 cfs @ 12.14 hrs, Volume= 16.579 af, Atten= 0%, Lag= 0.0 min Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Reach 10R: Lake Susan Drainage Inflow Outflow Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)26 24 22 20 18 16 14 12 10 8 6 4 2 0 Inflow Area=39.983 ac 24.17 cfs 24.17 cfs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 205HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Reach 61R: NERDITCH Inflow Area = 49.383 ac, 62.48% Impervious, Inflow Depth = 5.15" for 100y 24hr event Inflow = 101.77 cfs @ 12.12 hrs, Volume= 21.182 af Outflow = 96.59 cfs @ 12.15 hrs, Volume= 21.182 af, Atten= 5%, Lag= 1.8 min Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Max. Velocity= 3.74 fps, Min. Travel Time= 2.4 min Avg. Velocity = 1.02 fps, Avg. Travel Time= 8.9 min Peak Storage= 14,070 cf @ 12.15 hrs Average Depth at Peak Storage= 1.89' Bank-Full Depth= 5.00' Flow Area= 115.0 sf, Capacity= 737.08 cfs 8.00' x 5.00' deep channel, n= 0.035 Side Slope Z-value= 3.0 '/' Top Width= 38.00' Length= 545.0' Slope= 0.0055 '/' Inlet Invert= 895.00', Outlet Invert= 892.00' ‡ Reach 61R: NERDITCH Inflow Outflow Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)110 105 100 95 90 85 80 75 70 65 60 55 50 45 40 35 30 25 20 15 10 5 0 Inflow Area=49.383 ac Avg. Flow Depth=1.89' Max Vel=3.74 fps n=0.035 L=545.0' S=0.0055 '/' Capacity=737.08 cfs 101.77 cfs 96.59 cfs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 206HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Reach 62R: L42 [52] Hint: Inlet/Outlet conditions not evaluated [55] Hint: Peak inflow is 190% of Manning's capacity [76] Warning: Detained 0.147 af (Pond w/culvert advised) Inflow Area = 4.200 ac, 0.00% Impervious, Inflow Depth = 5.19" for 100y 24hr event Inflow = 32.86 cfs @ 12.11 hrs, Volume= 1.816 af Outflow = 18.89 cfs @ 12.51 hrs, Volume= 1.816 af, Atten= 43%, Lag= 23.9 min Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Max. Velocity= 6.29 fps, Min. Travel Time= 0.5 min Avg. Velocity = 2.39 fps, Avg. Travel Time= 1.4 min Peak Storage= 628 cf @ 12.04 hrs Average Depth at Peak Storage= 2.00' Bank-Full Depth= 2.00' Flow Area= 3.1 sf, Capacity= 17.33 cfs 24.0" Round Pipe n= 0.012 Length= 200.0' Slope= 0.0050 '/' Inlet Invert= 893.00', Outlet Invert= 892.00' MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 207HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Reach 62R: L42 Inflow Outflow Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)36 34 32 30 28 26 24 22 20 18 16 14 12 10 8 6 4 2 0 Inflow Area=4.200 ac Avg. Flow Depth=2.00' Max Vel=6.29 fps 24.0" Round Pipe n=0.012 L=200.0' S=0.0050 '/' Capacity=17.33 cfs 32.86 cfs 18.89 cfs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 208HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Pond 11.1P: North Underground Inflow Area = 14.098 ac, 81.42% Impervious, Inflow Depth = 6.78" for 100y 24hr event Inflow = 119.01 cfs @ 12.13 hrs, Volume= 7.967 af Outflow = 8.42 cfs @ 13.62 hrs, Volume= 7.967 af, Atten= 93%, Lag= 89.2 min Discarded = 0.53 cfs @ 12.11 hrs, Volume= 2.186 af Primary = 7.89 cfs @ 13.62 hrs, Volume= 5.781 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 913.15' @ 13.62 hrs Surf.Area= 382,430 sf Storage= 246,768 cf Plug-Flow detention time= 820.0 min calculated for 7.966 af (100% of inflow) Center-of-Mass det. time= 820.1 min ( 1,567.2 - 747.0 ) Volume Invert Avail.Storage Storage Description #1 909.40' 131,019 cf Custom Stage Data (Prismatic) Listed below (Recalc) 439,795 cf Overall - 3,063 cf Embedded = 436,731 cf x 30.0% Voids #2 911.70' 151,747 cf Custom Stage Data (Prismatic) Listed below (Recalc) 382,430 cf Overall - 3,063 cf Embedded = 379,367 cf x 40.0% Voids #3 909.40' 3,063 cf 8.0" Round Pipe Storage Inside #1 L= 8,776.0' #4 911.70' 3,063 cf 8.0" Round Pipe Storage Inside #2 L= 8,776.0' 288,893 cf Total Available Storage Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 909.40 191,215 0 0 911.70 191,215 439,795 439,795 Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 911.70 191,215 0 0 913.70 191,215 382,430 382,430 Device Routing Invert Outlet Devices #1 Primary 909.40'18.0" Round Culvert L= 212.0' RCP, sq.cut end projecting, Ke= 0.500 Inlet / Outlet Invert= 909.40' / 907.92' S= 0.0070 '/' Cc= 0.900 n= 0.011 Concrete pipe, straight & clean, Flow Area= 1.77 sf #2 Device 1 910.20'12.0" Vert. Infiltration Overflow C= 0.600 #3 Device 1 912.37'12.0" Vert. Filtration Overflow C= 0.600 #4 Discarded 909.40'0.060 in/hr Exfiltration over Surface area Phase-In= 0.01' Discarded OutFlow Max=0.53 cfs @ 12.11 hrs HW=911.70' (Free Discharge) 4=Exfiltration (Exfiltration Controls 0.53 cfs) Primary OutFlow Max=7.89 cfs @ 13.62 hrs HW=913.15' TW=0.00' (Dynamic Tailwater) 1=Culvert (Passes 7.89 cfs of 13.24 cfs potential flow) 2=Infiltration Overflow (Orifice Controls 5.92 cfs @ 7.54 fps) 3=Filtration Overflow (Orifice Controls 1.97 cfs @ 3.01 fps) MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 209HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Pond 11.1P: North Underground Inflow Outflow Discarded Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)130 120 110 100 90 80 70 60 50 40 30 20 10 0 Inflow Area=14.098 ac Peak Elev=913.15' Storage=246,768 cf 119.01 cfs 8.42 cfs 0.53 cfs7.89 cfs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 210HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Pond 11.3P: North Underground Inflow Area = 11.341 ac, 85.62% Impervious, Inflow Depth = 6.87" for 100y 24hr event Inflow = 96.56 cfs @ 12.13 hrs, Volume= 6.492 af Outflow = 6.80 cfs @ 13.62 hrs, Volume= 6.492 af, Atten= 93%, Lag= 89.2 min Discarded = 0.48 cfs @ 12.15 hrs, Volume= 1.891 af Primary = 6.32 cfs @ 13.62 hrs, Volume= 4.601 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 908.43' @ 13.62 hrs Surf.Area= 345,202 sf Storage= 200,557 cf Plug-Flow detention time= 817.7 min calculated for 6.492 af (100% of inflow) Center-of-Mass det. time= 817.8 min ( 1,563.7 - 745.9 ) Volume Invert Avail.Storage Storage Description #1 905.00' 118,265 cf Custom Stage Data (Prismatic) Listed below (Recalc) 396,982 cf Overall - 2,765 cf Embedded = 394,217 cf x 30.0% Voids #2 907.30' 136,975 cf Custom Stage Data (Prismatic) Listed below (Recalc) 345,202 cf Overall - 2,765 cf Embedded = 342,437 cf x 40.0% Voids #3 905.00' 2,765 cf 8.0" Round Pipe Storage Inside #1 L= 7,922.0' #4 907.30' 2,765 cf 8.0" Round Pipe Storage Inside #2 L= 7,922.0' 260,770 cf Total Available Storage Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 905.00 172,601 0 0 907.30 172,601 396,982 396,982 Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 907.30 172,601 0 0 909.30 172,601 345,202 345,202 Device Routing Invert Outlet Devices #1 Primary 905.00'18.0" Round Culvert L= 150.0' RCP, sq.cut end projecting, Ke= 0.500 Inlet / Outlet Invert= 905.00' / 904.00' S= 0.0067 '/' Cc= 0.900 n= 0.011 Concrete pipe, straight & clean, Flow Area= 1.77 sf #2 Device 1 905.80'12.0" Vert. Infiltration Overflow C= 0.600 #3 Device 1 907.97'12.0" Vert. Filtration Overflow C= 0.600 #4 Discarded 905.00'0.060 in/hr Exfiltration over Surface area Phase-In= 0.01' Discarded OutFlow Max=0.48 cfs @ 12.15 hrs HW=907.34' (Free Discharge) 4=Exfiltration (Exfiltration Controls 0.48 cfs) Primary OutFlow Max=6.32 cfs @ 13.62 hrs HW=908.43' TW=0.00' (Dynamic Tailwater) 1=Culvert (Passes 6.32 cfs of 13.04 cfs potential flow) 2=Infiltration Overflow (Orifice Controls 5.52 cfs @ 7.02 fps) 3=Filtration Overflow (Orifice Controls 0.81 cfs @ 2.30 fps) MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 211HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Pond 11.3P: North Underground Inflow Outflow Discarded Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)105 100 95 90 85 80 75 70 65 60 55 50 45 40 35 30 25 20 15 10 5 0 Inflow Area=11.341 ac Peak Elev=908.43' Storage=200,557 cf 96.56 cfs 6.80 cfs 0.48 cfs6.32 cfs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 212HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Pond 11.4P: East Pond Inflow Area = 39.057 ac, 78.72% Impervious, Inflow Depth = 4.97" for 100y 24hr event Inflow = 23.50 cfs @ 13.52 hrs, Volume= 16.169 af Outflow = 23.47 cfs @ 13.54 hrs, Volume= 16.169 af, Atten= 0%, Lag= 1.3 min Primary = 23.47 cfs @ 13.54 hrs, Volume= 16.169 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Starting Elev= 904.00' Surf.Area= 0.280 ac Storage= 1.260 af Peak Elev= 904.47' @ 13.54 hrs Surf.Area= 0.306 ac Storage= 1.399 af (0.139 af above start) Plug-Flow detention time= 88.0 min calculated for 14.909 af (92% of inflow) Center-of-Mass det. time= 5.5 min ( 1,072.4 - 1,066.8 ) Volume Invert Avail.Storage Storage Description #1 895.00' 2.829 af Custom Stage Data (Prismatic) Listed below (Recalc) Elevation Surf.Area Inc.Store Cum.Store (feet) (acres) (acre-feet) (acre-feet) 895.00 0.000 0.000 0.000 904.00 0.280 1.260 1.260 906.00 0.391 0.671 1.931 908.00 0.507 0.898 2.829 Device Routing Invert Outlet Devices #1 Primary 895.97'54.0" Round Culvert L= 232.0' RCP, square edge headwall, Ke= 0.500 Inlet / Outlet Invert= 895.97' / 894.53' S= 0.0062 '/' Cc= 0.900 n= 0.030 Corrugated metal, Flow Area= 15.90 sf #2 Device 1 904.00'84.0" Horiz. Orifice/Grate C= 0.600 Limited to weir flow at low heads Primary OutFlow Max=23.47 cfs @ 13.54 hrs HW=904.47' TW=0.00' (Dynamic Tailwater) 1=Culvert (Passes 23.47 cfs of 114.84 cfs potential flow) 2=Orifice/Grate (Weir Controls 23.47 cfs @ 2.25 fps) MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 213HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Pond 11.4P: East Pond Inflow Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)26 24 22 20 18 16 14 12 10 8 6 4 2 0 Inflow Area=39.057 ac Peak Elev=904.47' Storage=1.399 af 23.50 cfs 23.47 cfs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 214HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Pond 11P: Drop MHs [40] Hint: Not Described (Outflow=Inflow) Inflow Area = 38.086 ac, 79.22% Impervious, Inflow Depth = 4.93" for 100y 24hr event Inflow = 22.85 cfs @ 13.60 hrs, Volume= 15.658 af Primary = 22.85 cfs @ 13.60 hrs, Volume= 15.658 af, Atten= 0%, Lag= 0.0 min Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Pond 11P: Drop MHs Inflow Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)24 22 20 18 16 14 12 10 8 6 4 2 0 Inflow Area=38.086 ac 22.85 cfs 22.85 cfs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 215HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Pond 12P: North Underground Inflow Area = 12.647 ac, 71.03% Impervious, Inflow Depth = 6.56" for 100y 24hr event Inflow = 104.49 cfs @ 12.13 hrs, Volume= 6.917 af Outflow = 9.06 cfs @ 13.55 hrs, Volume= 6.917 af, Atten= 91%, Lag= 84.9 min Discarded = 0.42 cfs @ 12.09 hrs, Volume= 1.641 af Primary = 8.65 cfs @ 13.55 hrs, Volume= 5.277 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 912.01' @ 13.55 hrs Surf.Area= 300,466 sf Storage= 203,641 cf Plug-Flow detention time= 688.1 min calculated for 6.917 af (100% of inflow) Center-of-Mass det. time= 688.2 min ( 1,438.2 - 750.0 ) Volume Invert Avail.Storage Storage Description #1 908.10' 102,939 cf Custom Stage Data (Prismatic) Listed below (Recalc) 345,536 cf Overall - 2,407 cf Embedded = 343,129 cf x 30.0% Voids #2 910.40' 119,224 cf Custom Stage Data (Prismatic) Listed below (Recalc) 300,466 cf Overall - 2,407 cf Embedded = 298,059 cf x 40.0% Voids #3 908.10' 2,407 cf 8.0" Round Pipe Storage Inside #1 L= 6,895.0' #4 910.40' 2,407 cf 8.0" Round Pipe Storage Inside #2 L= 6,895.0' 226,976 cf Total Available Storage Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 908.10 150,233 0 0 910.40 150,233 345,536 345,536 Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 910.40 150,233 0 0 912.40 150,233 300,466 300,466 Device Routing Invert Outlet Devices #1 Primary 908.10'18.0" Round Culvert L= 840.0' RCP, sq.cut end projecting, Ke= 0.500 Inlet / Outlet Invert= 908.10' / 904.00' S= 0.0049 '/' Cc= 0.900 n= 0.011 Concrete pipe, straight & clean, Flow Area= 1.77 sf #2 Device 1 908.90'12.0" Vert. Infiltration Overflow C= 0.600 #3 Device 1 911.07'12.0" Vert. Filtration Overflow C= 0.600 #4 Discarded 908.10'0.060 in/hr Exfiltration over Surface area Phase-In= 0.01' Discarded OutFlow Max=0.42 cfs @ 12.09 hrs HW=910.42' (Free Discharge) 4=Exfiltration (Exfiltration Controls 0.42 cfs) Primary OutFlow Max=8.65 cfs @ 13.55 hrs HW=912.01' TW=0.00' (Dynamic Tailwater) 1=Culvert (Passes 8.65 cfs of 10.24 cfs potential flow) 2=Infiltration Overflow (Orifice Controls 6.11 cfs @ 7.78 fps) 3=Filtration Overflow (Orifice Controls 2.53 cfs @ 3.30 fps) MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 216HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Pond 12P: North Underground Inflow Outflow Discarded Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)115 110 105 100 95 90 85 80 75 70 65 60 55 50 45 40 35 30 25 20 15 10 5 0 Inflow Area=12.647 ac Peak Elev=912.01' Storage=203,641 cf 104.49 cfs 9.06 cfs 0.42 cfs8.65 cfs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 217HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Pond 61P: Englewood Pond [87] Warning: Oscillations may require smaller dt or Finer Routing (severity=4) [62] Hint: Exceeded Reach 61R OUTLET depth by 1.97' @ 30.93 hrs [63] Warning: Exceeded Reach 62R INLET depth by 1.50' @ 13.78 hrs Inflow Area = 69.583 ac, 44.34% Impervious, Inflow Depth = 5.19" for 100y 24hr event Inflow = 224.39 cfs @ 12.15 hrs, Volume= 30.092 af Outflow = 39.36 cfs @ 13.65 hrs, Volume= 30.024 af, Atten= 82%, Lag= 90.0 min Primary = 39.36 cfs @ 13.65 hrs, Volume= 30.024 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 894.89' @ 13.65 hrs Surf.Area= 166,891 sf Storage= 438,295 cf Plug-Flow detention time= 965.4 min calculated for 30.023 af (100% of inflow) Center-of-Mass det. time= 962.9 min ( 1,899.3 - 936.3 ) Volume Invert Avail.Storage Storage Description #1 892.00' 1,031,055 cf Custom Stage Data (Prismatic) Listed below (Recalc) Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 892.00 136,580 0 0 895.00 168,060 456,960 456,960 898.00 214,670 574,095 1,031,055 Device Routing Invert Outlet Devices #1 Primary 892.00'42.0" Round Culvert L= 29.0' RCP, square edge headwall, Ke= 0.500 Inlet / Outlet Invert= 892.00' / 891.71' S= 0.0100 '/' Cc= 0.900 n= 0.013 Concrete pipe, straight & clean, Flow Area= 9.62 sf #2 Device 1 887.63'42.0" Round Culvert L= 13.0' RCP, end-section conforming to fill, Ke= 0.500 Inlet / Outlet Invert= 887.50' / 887.63' S= -0.0100 '/' Cc= 0.900 n= 0.013 Concrete pipe, straight & clean, Flow Area= 9.62 sf Primary OutFlow Max=39.36 cfs @ 13.65 hrs HW=894.89' TW=892.21' (Dynamic Tailwater) 1=Culvert (Barrel Controls 39.36 cfs @ 6.29 fps) 2=Culvert (Passes 39.36 cfs of 75.76 cfs potential flow) MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 218HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Pond 61P: Englewood Pond Inflow Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)250 240 230 220 210 200 190 180 170 160 150 140 130 120 110 100 90 80 70 60 50 40 30 20 10 0 Inflow Area=69.583 ac Peak Elev=894.89' Storage=438,295 cf 224.39 cfs 39.36 cfs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 219HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Pond 65P: Fresh MDW Inflow Area = 12.140 ac, 3.62% Impervious, Inflow Depth = 4.54" for 100y 24hr event Inflow = 60.84 cfs @ 12.14 hrs, Volume= 4.593 af Outflow = 10.33 cfs @ 12.88 hrs, Volume= 4.439 af, Atten= 83%, Lag= 44.3 min Primary = 10.33 cfs @ 12.88 hrs, Volume= 4.439 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 900.32' @ 12.88 hrs Surf.Area= 29,211 sf Storage= 102,625 cf Plug-Flow detention time= 160.5 min calculated for 4.439 af (97% of inflow) Center-of-Mass det. time= 144.0 min ( 913.4 - 769.4 ) Volume Invert Avail.Storage Storage Description #1 896.00' 123,320 cf Custom Stage Data (Prismatic) Listed below (Recalc) Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 896.00 18,540 0 0 900.00 28,230 93,540 93,540 901.00 31,330 29,780 123,320 Device Routing Invert Outlet Devices #1 Primary 892.35'12.0" Round Culvert L= 35.0' RCP, square edge headwall, Ke= 0.500 Inlet / Outlet Invert= 892.00' / 892.35' S= -0.0100 '/' Cc= 0.900 n= 0.012, Flow Area= 0.79 sf #2 Device 1 896.35'33.0" Round Culvert L= 69.0' RCP, end-section conforming to fill, Ke= 0.500 Inlet / Outlet Invert= 896.35' / 896.01' S= 0.0049 '/' Cc= 0.900 n= 0.012 Concrete pipe, finished, Flow Area= 5.94 sf Primary OutFlow Max=10.33 cfs @ 12.88 hrs HW=900.32' TW=891.72' (Dynamic Tailwater) 1=Culvert (Inlet Controls 10.33 cfs @ 13.16 fps) 2=Culvert (Passes 10.33 cfs of 42.27 cfs potential flow) MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 220HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Pond 65P: Fresh MDW Inflow Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)65 60 55 50 45 40 35 30 25 20 15 10 5 0 Inflow Area=12.140 ac Peak Elev=900.32' Storage=102,625 cf 60.84 cfs 10.33 cfs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 221HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Pond 68P: East MNDOT M10 Wetland Inflow Area = 98.723 ac, 31.70% Impervious, Inflow Depth = 4.95" for 100y 24hr event Inflow = 126.42 cfs @ 12.14 hrs, Volume= 40.699 af Outflow = 4.36 cfs @ 25.70 hrs, Volume= 37.278 af, Atten= 97%, Lag= 813.3 min Primary = 4.36 cfs @ 25.70 hrs, Volume= 37.278 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 894.17' @ 25.70 hrs Surf.Area= 412,861 sf Storage= 1,221,049 cf Plug-Flow detention time= 3,621.7 min calculated for 37.278 af (92% of inflow) Center-of-Mass det. time= 3,182.1 min ( 4,803.1 - 1,620.9 ) Volume Invert Avail.Storage Storage Description #1 890.00' 1,574,445 cf Custom Stage Data (Prismatic) Listed below (Recalc) Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 890.00 68,660 0 0 891.00 198,790 133,725 133,725 892.00 340,250 269,520 403,245 895.00 440,550 1,171,200 1,574,445 Device Routing Invert Outlet Devices #1 Primary 890.30'18.0" Round Culvert L= 155.0' RCP, square edge headwall, Ke= 0.500 Inlet / Outlet Invert= 890.30' / 889.53' S= 0.0050 '/' Cc= 0.900 n= 0.013 Concrete pipe, straight & clean, Flow Area= 1.77 sf #2 Device 1 891.00'10.0" Vert. Orifice/Grate C= 0.600 #3 Device 2 890.50'18.0" Round Culvert L= 40.0' RCP, end-section conforming to fill, Ke= 0.500 Inlet / Outlet Invert= 890.30' / 890.50' S= -0.0050 '/' Cc= 0.900 n= 0.013 Concrete pipe, straight & clean, Flow Area= 1.77 sf Primary OutFlow Max=4.36 cfs @ 25.70 hrs HW=894.17' (Free Discharge) 1=Culvert (Passes 4.36 cfs of 12.07 cfs potential flow) 2=Orifice/Grate (Orifice Controls 4.36 cfs @ 7.99 fps) 3=Culvert (Passes 4.36 cfs of 14.54 cfs potential flow) MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 222HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Pond 68P: East MNDOT M10 Wetland Inflow Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)140 130 120 110 100 90 80 70 60 50 40 30 20 10 0 Inflow Area=98.723 ac Peak Elev=894.17' Storage=1,221,049 cf 126.42 cfs 4.36 cfs Type II 24-hr 100y 24hr Old Rainfall=6.00"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 223HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Time span=0.00-360.00 hrs, dt=0.01 hrs, 36001 points Runoff by SCS TR-20 method, UH=SCS, Weighted-Q Reach routing by Dyn-Stor-Ind method - Pond routing by Dyn-Stor-Ind method Runoff Area=614,104 sf 81.42% Impervious Runoff Depth=5.39"Subcatchment 11.1S: North Tc=10.0 min CN=WQ Runoff=101.60 cfs 6.337 af Runoff Area=494,016 sf 85.62% Impervious Runoff Depth=5.48"Subcatchment 11.3S: East Tc=10.0 min CN=WQ Runoff=82.59 cfs 5.176 af Runoff Area=42,316 sf 59.09% Impervious Runoff Depth=4.95"Subcatchment 11.4S: East Pond Tc=5.0 min CN=WQ Runoff=7.78 cfs 0.401 af Runoff Area=35,675 sf 0.00% Impervious Runoff Depth=3.78"Subcatchment 11oS: From Powers Flow Length=94' Slope=0.0430 '/' Tc=10.6 min CN=80 Runoff=4.61 cfs 0.258 af Runoff Area=550,898 sf 71.03% Impervious Runoff Depth=5.19"Subcatchment 12S: Central Tc=10.0 min CN=WQ Runoff=88.78 cfs 5.468 af Runoff Area=4,669 sf 100.00% Impervious Runoff Depth=5.76"Subcatchment 16oS: East Offsite Tc=5.0 min CN=98 Runoff=0.95 cfs 0.051 af Runoff Area=9.400 ac 0.00% Impervious Runoff Depth=4.52"Subcatchment 61S: Powers (from SRF) Tc=9.0 min CN=87 Runoff=64.51 cfs 3.538 af Runoff Area=4.200 ac 0.00% Impervious Runoff Depth=3.88"Subcatchment 62S: NE Ramp (from SRF) Tc=8.0 min CN=81 Runoff=26.48 cfs 1.359 af Runoff Area=8.200 ac 0.00% Impervious Runoff Depth=4.52"Subcatchment 63S: TH 212 (from SRF) Tc=12.0 min CN=87 Runoff=51.01 cfs 3.087 af Runoff Area=7.800 ac 0.00% Impervious Runoff Depth=3.48"Subcatchment 64S: Englewood (from SRF) Tc=10.0 min CN=77 Runoff=41.57 cfs 2.261 af Runoff Area=6.400 ac 0.00% Impervious Runoff Depth=4.09"Subcatchment 65S: LYMLP (from SRF) Tc=15.0 min CN=83 Runoff=33.39 cfs 2.182 af Runoff Area=1.900 ac 0.00% Impervious Runoff Depth=5.30"Subcatchment 66S: N54 (from SRF) Tc=7.6 min CN=94 Runoff=15.03 cfs 0.839 af Runoff Area=0.440 ac 100.00% Impervious Runoff Depth=6.00"Subcatchment 67-1S: Fresh MDW Tc=7.0 min CN=100 Runoff=3.66 cfs 0.220 af Runoff Area=1.100 ac 0.00% Impervious Runoff Depth=2.90"Subcatchment 67-2S: Fresh MDW Subcatch Tc=7.0 min CN=71 Runoff=5.50 cfs 0.266 af Runoff Area=2.300 ac 0.00% Impervious Runoff Depth=0.00"Subcatchment 67-3S: Fresh MDW Subcatch Tc=83.0 min CN=10 Runoff=0.00 cfs 0.000 af Runoff Area=17.000 ac 0.00% Impervious Runoff Depth=3.18"Subcatchment 68S: M10 Tc=10.0 min CN=74 Runoff=83.35 cfs 4.512 af Type II 24-hr 100y 24hr Old Rainfall=6.00"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 224HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Inflow=19.14 cfs 12.045 afReach 10R: Lake Susan Drainage Outflow=19.14 cfs 12.045 af Avg. Flow Depth=1.71' Max Vel=3.54 fps Inflow=83.09 cfs 15.584 afReach 61R: NERDITCH n=0.035 L=545.0' S=0.0055 '/' Capacity=737.08 cfs Outflow=79.49 cfs 15.584 af Avg. Flow Depth=2.00' Max Vel=6.29 fps Inflow=26.48 cfs 1.359 afReach 62R: L42 24.0" Round Pipe n=0.012 L=200.0' S=0.0050 '/' Capacity=17.33 cfs Outflow=18.48 cfs 1.359 af Peak Elev=912.22' Storage=175,467 cf Inflow=101.60 cfs 6.337 afPond 11.1P: North Underground Discarded=0.53 cfs 2.152 af Primary=4.66 cfs 4.185 af Outflow=5.19 cfs 6.337 af Peak Elev=907.59' Storage=141,413 cf Inflow=82.59 cfs 5.176 afPond 11.3P: North Underground Discarded=0.48 cfs 1.854 af Primary=4.29 cfs 3.322 af Outflow=4.77 cfs 5.176 af Peak Elev=904.34' Storage=1.358 af Inflow=15.79 cfs 11.736 afPond 11.4P: East Pond Outflow=14.24 cfs 11.736 af Inflow=13.83 cfs 11.335 afPond 11P: Drop MHs Primary=13.83 cfs 11.335 af Peak Elev=911.07' Storage=147,003 cf Inflow=88.78 cfs 5.468 afPond 12P: North Underground Discarded=0.42 cfs 1.639 af Primary=4.89 cfs 3.828 af Outflow=5.30 cfs 5.468 af Peak Elev=894.04' Storage=299,681 cf Inflow=188.85 cfs 22.291 afPond 61P: Englewood Pond Outflow=22.21 cfs 22.230 af Peak Elev=899.14' Storage=70,111 cf Inflow=52.86 cfs 3.506 afPond 65P: Fresh MDW Outflow=9.48 cfs 3.352 af Peak Elev=893.41' Storage=918,085 cf Inflow=100.74 cfs 30.094 afPond 68P: East MNDOT M10 Wetland Outflow=3.71 cfs 26.714 af Total Runoff Area = 98.723 ac Runoff Volume = 35.956 af Average Runoff Depth = 4.37" 68.30% Pervious = 67.430 ac 31.70% Impervious = 31.293 ac Type II 24-hr 100y 24hr Old Rainfall=6.00"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 225HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 11.1S: North Runoff = 101.60 cfs @ 12.01 hrs, Volume= 6.337 af, Depth= 5.39" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Type II 24-hr 100y 24hr Old Rainfall=6.00" Area (sf) CN Description 114,104 80 >75% Grass cover, Good, HSG D * 500,000 98 Paved parking & roofs, HSG D 614,104 Weighted Average 114,104 80 18.58% Pervious Area 500,000 98 81.42% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 10.0 Direct Entry, Subcatchment 11.1S: North Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)110 105 100 95 90 85 80 75 70 65 60 55 50 45 40 35 30 25 20 15 10 5 0 Type II 24-hr 100y 24hr Old Rainfall=6.00" Runoff Area=614,104 sf Runoff Volume=6.337 af Runoff Depth=5.39" Tc=10.0 min CN=WQ 101.60 cfs Type II 24-hr 100y 24hr Old Rainfall=6.00"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 226HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 11.3S: East Runoff = 82.59 cfs @ 12.01 hrs, Volume= 5.176 af, Depth= 5.48" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Type II 24-hr 100y 24hr Old Rainfall=6.00" Area (sf) CN Description 71,016 80 >75% Grass cover, Good, HSG D * 423,000 98 Paved & Roofs, HSG D 494,016 Weighted Average 71,016 80 14.38% Pervious Area 423,000 98 85.62% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 10.0 Direct Entry, Subcatchment 11.3S: East Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)90 85 80 75 70 65 60 55 50 45 40 35 30 25 20 15 10 5 0 Type II 24-hr 100y 24hr Old Rainfall=6.00" Runoff Area=494,016 sf Runoff Volume=5.176 af Runoff Depth=5.48" Tc=10.0 min CN=WQ 82.59 cfs Type II 24-hr 100y 24hr Old Rainfall=6.00"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 227HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 11.4S: East Pond Runoff = 7.78 cfs @ 11.96 hrs, Volume= 0.401 af, Depth= 4.95" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Type II 24-hr 100y 24hr Old Rainfall=6.00" Area (sf) CN Description 17,312 80 >75% Grass cover, Good, HSG D 19,254 98 Water Surface, HSG D 5,750 98 Roofs, HSG D 42,316 Weighted Average 17,312 80 40.91% Pervious Area 25,004 98 59.09% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 5.0 Direct Entry, Subcatchment 11.4S: East Pond Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)8 7 6 5 4 3 2 1 0 Type II 24-hr 100y 24hr Old Rainfall=6.00" Runoff Area=42,316 sf Runoff Volume=0.401 af Runoff Depth=4.95" Tc=5.0 min CN=WQ 7.78 cfs Type II 24-hr 100y 24hr Old Rainfall=6.00"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 228HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 11oS: From Powers Runoff = 4.61 cfs @ 12.02 hrs, Volume= 0.258 af, Depth= 3.78" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Type II 24-hr 100y 24hr Old Rainfall=6.00" Area (sf) CN Description 35,675 80 >75% Grass cover, Good, HSG D 35,675 80 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 10.6 94 0.0430 0.15 Sheet Flow, Grass: Dense n= 0.240 P2= 2.87" Subcatchment 11oS: From Powers Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)5 4 3 2 1 0 Type II 24-hr 100y 24hr Old Rainfall=6.00" Runoff Area=35,675 sf Runoff Volume=0.258 af Runoff Depth=3.78" Flow Length=94' Slope=0.0430 '/' Tc=10.6 min CN=80 4.61 cfs Type II 24-hr 100y 24hr Old Rainfall=6.00"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 229HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 12S: Central Runoff = 88.78 cfs @ 12.01 hrs, Volume= 5.468 af, Depth= 5.19" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Type II 24-hr 100y 24hr Old Rainfall=6.00" Area (sf) CN Description 159,598 80 >75% Grass cover, Good, HSG D 391,300 98 Paved parking, HSG D 550,898 Weighted Average 159,598 80 28.97% Pervious Area 391,300 98 71.03% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 10.0 Direct Entry, Subcatchment 12S: Central Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)95 90 85 80 75 70 65 60 55 50 45 40 35 30 25 20 15 10 5 0 Type II 24-hr 100y 24hr Old Rainfall=6.00" Runoff Area=550,898 sf Runoff Volume=5.468 af Runoff Depth=5.19" Tc=10.0 min CN=WQ 88.78 cfs Type II 24-hr 100y 24hr Old Rainfall=6.00"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 230HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 16oS: East Offsite Runoff = 0.95 cfs @ 11.96 hrs, Volume= 0.051 af, Depth= 5.76" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Type II 24-hr 100y 24hr Old Rainfall=6.00" Area (sf) CN Description 4,669 98 Paved parking, HSG D 4,669 98 100.00% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 5.0 Direct Entry, Subcatchment 16oS: East Offsite Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)1 0 Type II 24-hr 100y 24hr Old Rainfall=6.00" Runoff Area=4,669 sf Runoff Volume=0.051 af Runoff Depth=5.76" Tc=5.0 min CN=98 0.95 cfs Type II 24-hr 100y 24hr Old Rainfall=6.00"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 231HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 61S: Powers (from SRF) Runoff = 64.51 cfs @ 12.00 hrs, Volume= 3.538 af, Depth= 4.52" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Type II 24-hr 100y 24hr Old Rainfall=6.00" Area (ac) CN Description * 9.400 87 Weighted 9.400 87 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 9.0 Direct Entry, Subcatchment 61S: Powers (from SRF) Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)70 65 60 55 50 45 40 35 30 25 20 15 10 5 0 Type II 24-hr 100y 24hr Old Rainfall=6.00" Runoff Area=9.400 ac Runoff Volume=3.538 af Runoff Depth=4.52" Tc=9.0 min CN=87 64.51 cfs Type II 24-hr 100y 24hr Old Rainfall=6.00"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 232HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 62S: NE Ramp (from SRF) Runoff = 26.48 cfs @ 11.99 hrs, Volume= 1.359 af, Depth= 3.88" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Type II 24-hr 100y 24hr Old Rainfall=6.00" Area (ac) CN Description * 4.200 81 Weighted 4.200 81 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 8.0 Direct Entry, Subcatchment 62S: NE Ramp (from SRF) Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)28 26 24 22 20 18 16 14 12 10 8 6 4 2 0 Type II 24-hr 100y 24hr Old Rainfall=6.00" Runoff Area=4.200 ac Runoff Volume=1.359 af Runoff Depth=3.88" Tc=8.0 min CN=81 26.48 cfs Type II 24-hr 100y 24hr Old Rainfall=6.00"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 233HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 63S: TH 212 (from SRF) Runoff = 51.01 cfs @ 12.03 hrs, Volume= 3.087 af, Depth= 4.52" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Type II 24-hr 100y 24hr Old Rainfall=6.00" Area (ac) CN Description * 8.200 87 Weighted 8.200 87 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 12.0 Direct Entry, Subcatchment 63S: TH 212 (from SRF) Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)55 50 45 40 35 30 25 20 15 10 5 0 Type II 24-hr 100y 24hr Old Rainfall=6.00" Runoff Area=8.200 ac Runoff Volume=3.087 af Runoff Depth=4.52" Tc=12.0 min CN=87 51.01 cfs Type II 24-hr 100y 24hr Old Rainfall=6.00"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 234HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 64S: Englewood (from SRF) Runoff = 41.57 cfs @ 12.02 hrs, Volume= 2.261 af, Depth= 3.48" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Type II 24-hr 100y 24hr Old Rainfall=6.00" Area (ac) CN Description * 7.800 77 Weighted 7.800 77 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 10.0 Direct Entry, Subcatchment 64S: Englewood (from SRF) Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)46 44 42 40 38 36 34 32 30 28 26 24 22 20 18 16 14 12 10 8 6 4 2 0 Type II 24-hr 100y 24hr Old Rainfall=6.00" Runoff Area=7.800 ac Runoff Volume=2.261 af Runoff Depth=3.48" Tc=10.0 min CN=77 41.57 cfs Type II 24-hr 100y 24hr Old Rainfall=6.00"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 235HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 65S: LYMLP (from SRF) Runoff = 33.39 cfs @ 12.07 hrs, Volume= 2.182 af, Depth= 4.09" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Type II 24-hr 100y 24hr Old Rainfall=6.00" Area (ac) CN Description * 6.400 83 Weighted 6.400 83 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 15.0 Direct Entry, Subcatchment 65S: LYMLP (from SRF) Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)36 34 32 30 28 26 24 22 20 18 16 14 12 10 8 6 4 2 0 Type II 24-hr 100y 24hr Old Rainfall=6.00" Runoff Area=6.400 ac Runoff Volume=2.182 af Runoff Depth=4.09" Tc=15.0 min CN=83 33.39 cfs Type II 24-hr 100y 24hr Old Rainfall=6.00"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 236HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 66S: N54 (from SRF) Runoff = 15.03 cfs @ 11.98 hrs, Volume= 0.839 af, Depth= 5.30" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Type II 24-hr 100y 24hr Old Rainfall=6.00" Area (ac) CN Description * 1.900 94 Weighted 1.900 94 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 7.6 Direct Entry, Subcatchment 66S: N54 (from SRF) Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 Type II 24-hr 100y 24hr Old Rainfall=6.00" Runoff Area=1.900 ac Runoff Volume=0.839 af Runoff Depth=5.30" Tc=7.6 min CN=94 15.03 cfs Type II 24-hr 100y 24hr Old Rainfall=6.00"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 237HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 67-1S: Fresh MDW Subcatch 1 (from SRF) Runoff = 3.66 cfs @ 11.98 hrs, Volume= 0.220 af, Depth= 6.00" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Type II 24-hr 100y 24hr Old Rainfall=6.00" Area (ac) CN Description * 0.440 100 Weighted 0.440 100 100.00% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 7.0 Direct Entry, Subcatchment 67-1S: Fresh MDW Subcatch 1 (from SRF) Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)4 3 2 1 0 Type II 24-hr 100y 24hr Old Rainfall=6.00" Runoff Area=0.440 ac Runoff Volume=0.220 af Runoff Depth=6.00" Tc=7.0 min CN=100 3.66 cfs Type II 24-hr 100y 24hr Old Rainfall=6.00"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 238HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 67-2S: Fresh MDW Subcatch 2 (from SRF) Runoff = 5.50 cfs @ 11.99 hrs, Volume= 0.266 af, Depth= 2.90" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Type II 24-hr 100y 24hr Old Rainfall=6.00" Area (ac) CN Description * 1.100 71 Weighted 1.100 71 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 7.0 Direct Entry, Subcatchment 67-2S: Fresh MDW Subcatch 2 (from SRF) Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)6 5 4 3 2 1 0 Type II 24-hr 100y 24hr Old Rainfall=6.00" Runoff Area=1.100 ac Runoff Volume=0.266 af Runoff Depth=2.90" Tc=7.0 min CN=71 5.50 cfs Type II 24-hr 100y 24hr Old Rainfall=6.00"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 239HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 67-3S: Fresh MDW Subcatch 3 (from SRF) [45] Hint: Runoff=Zero Runoff = 0.00 cfs @ 0.00 hrs, Volume= 0.000 af, Depth= 0.00" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Type II 24-hr 100y 24hr Old Rainfall=6.00" Area (ac) CN Description * 2.300 10 Weighted 2.300 10 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 83.0 Direct Entry, Subcatchment 67-3S: Fresh MDW Subcatch 3 (from SRF) Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)1 0 Type II 24-hr 100y 24hr Old Rainfall=6.00" Runoff Area=2.300 ac Runoff Volume=0.000 af Runoff Depth=0.00" Tc=83.0 min CN=10 0.00 cfs Type II 24-hr 100y 24hr Old Rainfall=6.00"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 240HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 68S: M10 Runoff = 83.35 cfs @ 12.02 hrs, Volume= 4.512 af, Depth= 3.18" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Type II 24-hr 100y 24hr Old Rainfall=6.00" Area (ac) CN Description * 17.000 74 Weighted 17.000 74 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 10.0 Direct Entry, Subcatchment 68S: M10 Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)90 85 80 75 70 65 60 55 50 45 40 35 30 25 20 15 10 5 0 Type II 24-hr 100y 24hr Old Rainfall=6.00" Runoff Area=17.000 ac Runoff Volume=4.512 af Runoff Depth=3.18" Tc=10.0 min CN=74 83.35 cfs Type II 24-hr 100y 24hr Old Rainfall=6.00"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 241HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Reach 10R: Lake Susan Drainage [40] Hint: Not Described (Outflow=Inflow) Inflow Area = 39.983 ac, 77.17% Impervious, Inflow Depth = 3.62" for 100y 24hr Old event Inflow = 19.14 cfs @ 12.03 hrs, Volume= 12.045 af Outflow = 19.14 cfs @ 12.03 hrs, Volume= 12.045 af, Atten= 0%, Lag= 0.0 min Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Reach 10R: Lake Susan Drainage Inflow Outflow Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 Inflow Area=39.983 ac 19.14 cfs 19.14 cfs Type II 24-hr 100y 24hr Old Rainfall=6.00"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 242HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Reach 61R: NERDITCH Inflow Area = 49.383 ac, 62.48% Impervious, Inflow Depth = 3.79" for 100y 24hr Old event Inflow = 83.09 cfs @ 12.01 hrs, Volume= 15.584 af Outflow = 79.49 cfs @ 12.03 hrs, Volume= 15.584 af, Atten= 4%, Lag= 1.6 min Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Max. Velocity= 3.54 fps, Min. Travel Time= 2.6 min Avg. Velocity = 0.96 fps, Avg. Travel Time= 9.4 min Peak Storage= 12,227 cf @ 12.03 hrs Average Depth at Peak Storage= 1.71' Bank-Full Depth= 5.00' Flow Area= 115.0 sf, Capacity= 737.08 cfs 8.00' x 5.00' deep channel, n= 0.035 Side Slope Z-value= 3.0 '/' Top Width= 38.00' Length= 545.0' Slope= 0.0055 '/' Inlet Invert= 895.00', Outlet Invert= 892.00' ‡ Reach 61R: NERDITCH Inflow Outflow Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)90 85 80 75 70 65 60 55 50 45 40 35 30 25 20 15 10 5 0 Inflow Area=49.383 ac Avg. Flow Depth=1.71' Max Vel=3.54 fps n=0.035 L=545.0' S=0.0055 '/' Capacity=737.08 cfs 83.09 cfs 79.49 cfs Type II 24-hr 100y 24hr Old Rainfall=6.00"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 243HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Reach 62R: L42 [52] Hint: Inlet/Outlet conditions not evaluated [55] Hint: Peak inflow is 153% of Manning's capacity [76] Warning: Detained 0.075 af (Pond w/culvert advised) Inflow Area = 4.200 ac, 0.00% Impervious, Inflow Depth = 3.88" for 100y 24hr Old event Inflow = 26.48 cfs @ 11.99 hrs, Volume= 1.359 af Outflow = 18.48 cfs @ 11.92 hrs, Volume= 1.359 af, Atten= 30%, Lag= 0.0 min Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Max. Velocity= 6.29 fps, Min. Travel Time= 0.5 min Avg. Velocity = 2.29 fps, Avg. Travel Time= 1.5 min Peak Storage= 628 cf @ 11.93 hrs Average Depth at Peak Storage= 2.00' Bank-Full Depth= 2.00' Flow Area= 3.1 sf, Capacity= 17.33 cfs 24.0" Round Pipe n= 0.012 Length= 200.0' Slope= 0.0050 '/' Inlet Invert= 893.00', Outlet Invert= 892.00' Type II 24-hr 100y 24hr Old Rainfall=6.00"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 244HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Reach 62R: L42 Inflow Outflow Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)28 26 24 22 20 18 16 14 12 10 8 6 4 2 0 Inflow Area=4.200 ac Avg. Flow Depth=2.00' Max Vel=6.29 fps 24.0" Round Pipe n=0.012 L=200.0' S=0.0050 '/' Capacity=17.33 cfs 26.48 cfs 18.48 cfs Type II 24-hr 100y 24hr Old Rainfall=6.00"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 245HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Pond 11.1P: North Underground Inflow Area = 14.098 ac, 81.42% Impervious, Inflow Depth = 5.39" for 100y 24hr Old event Inflow = 101.60 cfs @ 12.01 hrs, Volume= 6.337 af Outflow = 5.19 cfs @ 13.13 hrs, Volume= 6.337 af, Atten= 95%, Lag= 67.2 min Discarded = 0.53 cfs @ 12.06 hrs, Volume= 2.152 af Primary = 4.66 cfs @ 13.13 hrs, Volume= 4.185 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 912.22' @ 13.13 hrs Surf.Area= 382,430 sf Storage= 175,467 cf Plug-Flow detention time= 912.2 min calculated for 6.337 af (100% of inflow) Center-of-Mass det. time= 912.2 min ( 1,666.0 - 753.8 ) Volume Invert Avail.Storage Storage Description #1 909.40' 131,019 cf Custom Stage Data (Prismatic) Listed below (Recalc) 439,795 cf Overall - 3,063 cf Embedded = 436,731 cf x 30.0% Voids #2 911.70' 151,747 cf Custom Stage Data (Prismatic) Listed below (Recalc) 382,430 cf Overall - 3,063 cf Embedded = 379,367 cf x 40.0% Voids #3 909.40' 3,063 cf 8.0" Round Pipe Storage Inside #1 L= 8,776.0' #4 911.70' 3,063 cf 8.0" Round Pipe Storage Inside #2 L= 8,776.0' 288,893 cf Total Available Storage Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 909.40 191,215 0 0 911.70 191,215 439,795 439,795 Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 911.70 191,215 0 0 913.70 191,215 382,430 382,430 Device Routing Invert Outlet Devices #1 Primary 909.40'18.0" Round Culvert L= 212.0' RCP, sq.cut end projecting, Ke= 0.500 Inlet / Outlet Invert= 909.40' / 907.92' S= 0.0070 '/' Cc= 0.900 n= 0.011 Concrete pipe, straight & clean, Flow Area= 1.77 sf #2 Device 1 910.20'12.0" Vert. Infiltration Overflow C= 0.600 #3 Device 1 912.37'12.0" Vert. Filtration Overflow C= 0.600 #4 Discarded 909.40'0.060 in/hr Exfiltration over Surface area Phase-In= 0.01' Discarded OutFlow Max=0.53 cfs @ 12.06 hrs HW=911.73' (Free Discharge) 4=Exfiltration (Exfiltration Controls 0.53 cfs) Primary OutFlow Max=4.66 cfs @ 13.13 hrs HW=912.22' TW=0.00' (Dynamic Tailwater) 1=Culvert (Passes 4.66 cfs of 11.48 cfs potential flow) 2=Infiltration Overflow (Orifice Controls 4.66 cfs @ 5.94 fps) 3=Filtration Overflow ( Controls 0.00 cfs) Type II 24-hr 100y 24hr Old Rainfall=6.00"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 246HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Pond 11.1P: North Underground Inflow Outflow Discarded Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)110 105 100 95 90 85 80 75 70 65 60 55 50 45 40 35 30 25 20 15 10 5 0 Inflow Area=14.098 ac Peak Elev=912.22' Storage=175,467 cf 101.60 cfs 5.19 cfs 0.53 cfs4.66 cfs Type II 24-hr 100y 24hr Old Rainfall=6.00"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 247HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Pond 11.3P: North Underground Inflow Area = 11.341 ac, 85.62% Impervious, Inflow Depth = 5.48" for 100y 24hr Old event Inflow = 82.59 cfs @ 12.01 hrs, Volume= 5.176 af Outflow = 4.77 cfs @ 12.96 hrs, Volume= 5.176 af, Atten= 94%, Lag= 57.1 min Discarded = 0.48 cfs @ 12.11 hrs, Volume= 1.854 af Primary = 4.29 cfs @ 12.96 hrs, Volume= 3.322 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 907.59' @ 12.96 hrs Surf.Area= 345,202 sf Storage= 141,413 cf Plug-Flow detention time= 910.3 min calculated for 5.176 af (100% of inflow) Center-of-Mass det. time= 910.4 min ( 1,662.0 - 751.7 ) Volume Invert Avail.Storage Storage Description #1 905.00' 118,265 cf Custom Stage Data (Prismatic) Listed below (Recalc) 396,982 cf Overall - 2,765 cf Embedded = 394,217 cf x 30.0% Voids #2 907.30' 136,975 cf Custom Stage Data (Prismatic) Listed below (Recalc) 345,202 cf Overall - 2,765 cf Embedded = 342,437 cf x 40.0% Voids #3 905.00' 2,765 cf 8.0" Round Pipe Storage Inside #1 L= 7,922.0' #4 907.30' 2,765 cf 8.0" Round Pipe Storage Inside #2 L= 7,922.0' 260,770 cf Total Available Storage Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 905.00 172,601 0 0 907.30 172,601 396,982 396,982 Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 907.30 172,601 0 0 909.30 172,601 345,202 345,202 Device Routing Invert Outlet Devices #1 Primary 905.00'18.0" Round Culvert L= 150.0' RCP, sq.cut end projecting, Ke= 0.500 Inlet / Outlet Invert= 905.00' / 904.00' S= 0.0067 '/' Cc= 0.900 n= 0.011 Concrete pipe, straight & clean, Flow Area= 1.77 sf #2 Device 1 905.80'12.0" Vert. Infiltration Overflow C= 0.600 #3 Device 1 907.97'12.0" Vert. Filtration Overflow C= 0.600 #4 Discarded 905.00'0.060 in/hr Exfiltration over Surface area Phase-In= 0.01' Discarded OutFlow Max=0.48 cfs @ 12.11 hrs HW=907.31' (Free Discharge) 4=Exfiltration (Exfiltration Controls 0.48 cfs) Primary OutFlow Max=4.29 cfs @ 12.96 hrs HW=907.59' TW=0.00' (Dynamic Tailwater) 1=Culvert (Passes 4.29 cfs of 11.00 cfs potential flow) 2=Infiltration Overflow (Orifice Controls 4.29 cfs @ 5.46 fps) 3=Filtration Overflow ( Controls 0.00 cfs) Type II 24-hr 100y 24hr Old Rainfall=6.00"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 248HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Pond 11.3P: North Underground Inflow Outflow Discarded Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)90 85 80 75 70 65 60 55 50 45 40 35 30 25 20 15 10 5 0 Inflow Area=11.341 ac Peak Elev=907.59' Storage=141,413 cf 82.59 cfs 4.77 cfs 0.48 cfs4.29 cfs Type II 24-hr 100y 24hr Old Rainfall=6.00"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 249HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Pond 11.4P: East Pond Inflow Area = 39.057 ac, 78.72% Impervious, Inflow Depth = 3.61" for 100y 24hr Old event Inflow = 15.79 cfs @ 11.99 hrs, Volume= 11.736 af Outflow = 14.24 cfs @ 12.51 hrs, Volume= 11.736 af, Atten= 10%, Lag= 31.2 min Primary = 14.24 cfs @ 12.51 hrs, Volume= 11.736 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Starting Elev= 904.00' Surf.Area= 0.280 ac Storage= 1.260 af Peak Elev= 904.34' @ 12.51 hrs Surf.Area= 0.299 ac Storage= 1.358 af (0.098 af above start) Plug-Flow detention time= 117.4 min calculated for 10.476 af (89% of inflow) Center-of-Mass det. time= 6.2 min ( 1,083.8 - 1,077.6 ) Volume Invert Avail.Storage Storage Description #1 895.00' 2.829 af Custom Stage Data (Prismatic) Listed below (Recalc) Elevation Surf.Area Inc.Store Cum.Store (feet) (acres) (acre-feet) (acre-feet) 895.00 0.000 0.000 0.000 904.00 0.280 1.260 1.260 906.00 0.391 0.671 1.931 908.00 0.507 0.898 2.829 Device Routing Invert Outlet Devices #1 Primary 895.97'54.0" Round Culvert L= 232.0' RCP, square edge headwall, Ke= 0.500 Inlet / Outlet Invert= 895.97' / 894.53' S= 0.0062 '/' Cc= 0.900 n= 0.030 Corrugated metal, Flow Area= 15.90 sf #2 Device 1 904.00'84.0" Horiz. Orifice/Grate C= 0.600 Limited to weir flow at low heads Primary OutFlow Max=14.24 cfs @ 12.51 hrs HW=904.34' TW=0.00' (Dynamic Tailwater) 1=Culvert (Passes 14.24 cfs of 113.42 cfs potential flow) 2=Orifice/Grate (Weir Controls 14.24 cfs @ 1.91 fps) Type II 24-hr 100y 24hr Old Rainfall=6.00"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 250HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Pond 11.4P: East Pond Inflow Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 Inflow Area=39.057 ac Peak Elev=904.34' Storage=1.358 af 15.79 cfs 14.24 cfs Type II 24-hr 100y 24hr Old Rainfall=6.00"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 251HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Pond 11P: Drop MHs [40] Hint: Not Described (Outflow=Inflow) Inflow Area = 38.086 ac, 79.22% Impervious, Inflow Depth = 3.57" for 100y 24hr Old event Inflow = 13.83 cfs @ 13.00 hrs, Volume= 11.335 af Primary = 13.83 cfs @ 13.00 hrs, Volume= 11.335 af, Atten= 0%, Lag= 0.0 min Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Pond 11P: Drop MHs Inflow Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 Inflow Area=38.086 ac 13.83 cfs 13.83 cfs Type II 24-hr 100y 24hr Old Rainfall=6.00"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 252HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Pond 12P: North Underground Inflow Area = 12.647 ac, 71.03% Impervious, Inflow Depth = 5.19" for 100y 24hr Old event Inflow = 88.78 cfs @ 12.01 hrs, Volume= 5.468 af Outflow = 5.30 cfs @ 12.93 hrs, Volume= 5.468 af, Atten= 94%, Lag= 55.4 min Discarded = 0.42 cfs @ 12.03 hrs, Volume= 1.639 af Primary = 4.89 cfs @ 12.93 hrs, Volume= 3.828 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 911.07' @ 12.93 hrs Surf.Area= 300,466 sf Storage= 147,003 cf Plug-Flow detention time= 788.4 min calculated for 5.468 af (100% of inflow) Center-of-Mass det. time= 788.5 min ( 1,548.0 - 759.5 ) Volume Invert Avail.Storage Storage Description #1 908.10' 102,939 cf Custom Stage Data (Prismatic) Listed below (Recalc) 345,536 cf Overall - 2,407 cf Embedded = 343,129 cf x 30.0% Voids #2 910.40' 119,224 cf Custom Stage Data (Prismatic) Listed below (Recalc) 300,466 cf Overall - 2,407 cf Embedded = 298,059 cf x 40.0% Voids #3 908.10' 2,407 cf 8.0" Round Pipe Storage Inside #1 L= 6,895.0' #4 910.40' 2,407 cf 8.0" Round Pipe Storage Inside #2 L= 6,895.0' 226,976 cf Total Available Storage Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 908.10 150,233 0 0 910.40 150,233 345,536 345,536 Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 910.40 150,233 0 0 912.40 150,233 300,466 300,466 Device Routing Invert Outlet Devices #1 Primary 908.10'18.0" Round Culvert L= 840.0' RCP, sq.cut end projecting, Ke= 0.500 Inlet / Outlet Invert= 908.10' / 904.00' S= 0.0049 '/' Cc= 0.900 n= 0.011 Concrete pipe, straight & clean, Flow Area= 1.77 sf #2 Device 1 908.90'12.0" Vert. Infiltration Overflow C= 0.600 #3 Device 1 911.07'12.0" Vert. Filtration Overflow C= 0.600 #4 Discarded 908.10'0.060 in/hr Exfiltration over Surface area Phase-In= 0.01' Discarded OutFlow Max=0.42 cfs @ 12.03 hrs HW=910.42' (Free Discharge) 4=Exfiltration (Exfiltration Controls 0.42 cfs) Primary OutFlow Max=4.89 cfs @ 12.93 hrs HW=911.07' TW=0.00' (Dynamic Tailwater) 1=Culvert (Passes 4.89 cfs of 9.47 cfs potential flow) 2=Infiltration Overflow (Orifice Controls 4.89 cfs @ 6.22 fps) 3=Filtration Overflow ( Controls 0.00 cfs) Type II 24-hr 100y 24hr Old Rainfall=6.00"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 253HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Pond 12P: North Underground Inflow Outflow Discarded Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)95 90 85 80 75 70 65 60 55 50 45 40 35 30 25 20 15 10 5 0 Inflow Area=12.647 ac Peak Elev=911.07' Storage=147,003 cf 88.78 cfs 5.30 cfs 0.42 cfs4.89 cfs Type II 24-hr 100y 24hr Old Rainfall=6.00"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 254HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Pond 61P: Englewood Pond [87] Warning: Oscillations may require smaller dt or Finer Routing (severity=7) [62] Hint: Exceeded Reach 61R OUTLET depth by 1.31' @ 14.10 hrs [63] Warning: Exceeded Reach 62R INLET depth by 0.72' @ 14.15 hrs Inflow Area = 69.583 ac, 44.34% Impervious, Inflow Depth = 3.84" for 100y 24hr Old event Inflow = 188.85 cfs @ 12.03 hrs, Volume= 22.291 af Outflow = 22.21 cfs @ 13.59 hrs, Volume= 22.230 af, Atten= 88%, Lag= 93.7 min Primary = 22.21 cfs @ 13.59 hrs, Volume= 22.230 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 894.04' @ 13.59 hrs Surf.Area= 157,935 sf Storage= 299,681 cf Plug-Flow detention time= 747.8 min calculated for 22.230 af (100% of inflow) Center-of-Mass det. time= 744.4 min ( 1,698.9 - 954.6 ) Volume Invert Avail.Storage Storage Description #1 892.00' 1,031,055 cf Custom Stage Data (Prismatic) Listed below (Recalc) Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 892.00 136,580 0 0 895.00 168,060 456,960 456,960 898.00 214,670 574,095 1,031,055 Device Routing Invert Outlet Devices #1 Primary 892.00'42.0" Round Culvert L= 29.0' RCP, square edge headwall, Ke= 0.500 Inlet / Outlet Invert= 892.00' / 891.71' S= 0.0100 '/' Cc= 0.900 n= 0.013 Concrete pipe, straight & clean, Flow Area= 9.62 sf #2 Device 1 887.63'42.0" Round Culvert L= 13.0' RCP, end-section conforming to fill, Ke= 0.500 Inlet / Outlet Invert= 887.50' / 887.63' S= -0.0100 '/' Cc= 0.900 n= 0.013 Concrete pipe, straight & clean, Flow Area= 9.62 sf Primary OutFlow Max=22.21 cfs @ 13.59 hrs HW=894.04' TW=891.73' (Dynamic Tailwater) 1=Culvert (Barrel Controls 22.21 cfs @ 5.51 fps) 2=Culvert (Passes 22.21 cfs of 66.09 cfs potential flow) Type II 24-hr 100y 24hr Old Rainfall=6.00"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 255HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Pond 61P: Englewood Pond Inflow Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)210 200 190 180 170 160 150 140 130 120 110 100 90 80 70 60 50 40 30 20 10 0 Inflow Area=69.583 ac Peak Elev=894.04' Storage=299,681 cf 188.85 cfs 22.21 cfs Type II 24-hr 100y 24hr Old Rainfall=6.00"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 256HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Pond 65P: Fresh MDW Inflow Area = 12.140 ac, 3.62% Impervious, Inflow Depth = 3.47" for 100y 24hr Old event Inflow = 52.86 cfs @ 12.02 hrs, Volume= 3.506 af Outflow = 9.48 cfs @ 12.41 hrs, Volume= 3.352 af, Atten= 82%, Lag= 23.9 min Primary = 9.48 cfs @ 12.41 hrs, Volume= 3.352 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 899.14' @ 12.41 hrs Surf.Area= 26,142 sf Storage= 70,111 cf Plug-Flow detention time= 167.5 min calculated for 3.352 af (96% of inflow) Center-of-Mass det. time= 142.0 min ( 938.8 - 796.8 ) Volume Invert Avail.Storage Storage Description #1 896.00' 123,320 cf Custom Stage Data (Prismatic) Listed below (Recalc) Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 896.00 18,540 0 0 900.00 28,230 93,540 93,540 901.00 31,330 29,780 123,320 Device Routing Invert Outlet Devices #1 Primary 892.35'12.0" Round Culvert L= 35.0' RCP, square edge headwall, Ke= 0.500 Inlet / Outlet Invert= 892.00' / 892.35' S= -0.0100 '/' Cc= 0.900 n= 0.012, Flow Area= 0.79 sf #2 Device 1 896.35'33.0" Round Culvert L= 69.0' RCP, end-section conforming to fill, Ke= 0.500 Inlet / Outlet Invert= 896.35' / 896.01' S= 0.0049 '/' Cc= 0.900 n= 0.012 Concrete pipe, finished, Flow Area= 5.94 sf Primary OutFlow Max=9.48 cfs @ 12.41 hrs HW=899.14' TW=891.15' (Dynamic Tailwater) 1=Culvert (Inlet Controls 9.48 cfs @ 12.07 fps) 2=Culvert (Passes 9.48 cfs of 28.95 cfs potential flow) Type II 24-hr 100y 24hr Old Rainfall=6.00"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 257HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Pond 65P: Fresh MDW Inflow Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)55 50 45 40 35 30 25 20 15 10 5 0 Inflow Area=12.140 ac Peak Elev=899.14' Storage=70,111 cf 52.86 cfs 9.48 cfs Type II 24-hr 100y 24hr Old Rainfall=6.00"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 258HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Pond 68P: East MNDOT M10 Wetland Inflow Area = 98.723 ac, 31.70% Impervious, Inflow Depth = 3.66" for 100y 24hr Old event Inflow = 100.74 cfs @ 12.02 hrs, Volume= 30.094 af Outflow = 3.71 cfs @ 26.31 hrs, Volume= 26.714 af, Atten= 96%, Lag= 857.4 min Primary = 3.71 cfs @ 26.31 hrs, Volume= 26.714 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 893.41' @ 26.31 hrs Surf.Area= 387,551 sf Storage= 918,085 cf Plug-Flow detention time= 3,259.2 min calculated for 26.713 af (89% of inflow) Center-of-Mass det. time= 2,845.4 min ( 4,329.3 - 1,483.9 ) Volume Invert Avail.Storage Storage Description #1 890.00' 1,574,445 cf Custom Stage Data (Prismatic) Listed below (Recalc) Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 890.00 68,660 0 0 891.00 198,790 133,725 133,725 892.00 340,250 269,520 403,245 895.00 440,550 1,171,200 1,574,445 Device Routing Invert Outlet Devices #1 Primary 890.30'18.0" Round Culvert L= 155.0' RCP, square edge headwall, Ke= 0.500 Inlet / Outlet Invert= 890.30' / 889.53' S= 0.0050 '/' Cc= 0.900 n= 0.013 Concrete pipe, straight & clean, Flow Area= 1.77 sf #2 Device 1 891.00'10.0" Vert. Orifice/Grate C= 0.600 #3 Device 2 890.50'18.0" Round Culvert L= 40.0' RCP, end-section conforming to fill, Ke= 0.500 Inlet / Outlet Invert= 890.30' / 890.50' S= -0.0050 '/' Cc= 0.900 n= 0.013 Concrete pipe, straight & clean, Flow Area= 1.77 sf Primary OutFlow Max=3.71 cfs @ 26.31 hrs HW=893.41' (Free Discharge) 1=Culvert (Passes 3.71 cfs of 10.52 cfs potential flow) 2=Orifice/Grate (Orifice Controls 3.71 cfs @ 6.81 fps) 3=Culvert (Passes 3.71 cfs of 12.06 cfs potential flow) Type II 24-hr 100y 24hr Old Rainfall=6.00"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 259HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Pond 68P: East MNDOT M10 Wetland Inflow Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)110 105 100 95 90 85 80 75 70 65 60 55 50 45 40 35 30 25 20 15 10 5 0 Inflow Area=98.723 ac Peak Elev=893.41' Storage=918,085 cf 100.74 cfs 3.71 cfs 21S Direct to 21P 22oS From Lyman 22S Direct to Wetland 6 24S Northwest 25S West North 28S Avienda Pkwy - NW 29oS North Offsite 31S West Central 33oS Offsite West - North 33S Direct to Wetland 3 34dS Offsite West Direct 34oS Offsite to West South 34S West Woods 35S Southwest 36oS Southwest Offsite 40.1S South - East 40.2S South - Central 40.3S South - West 41.1S South - East 41.2S South - Central 41.3S South - west 42.1S South 42.2S Southeast 43.1S East Woods 43.2S Northeast Woods 44S North Woods 45S Central - West 46S South Townhomes 47S Bluff Creek Blvd - West 48.1S Direct to 48P (2) 48S Bluff Creek Blvd - East 20R Northwest Drainage 21R Lower Wetland 6 30R SW Drainage 35R Direct Runoff 40R South Drainage 42.1R South 42.2R Southeast 44R Wetland 4 Channel 48R Development to Wetland 4 50R Bluff Creek Drainage 21P North Basin 24P Northwest Basin 25P West - North 28P Avienda Pkwy - NW Basin 31P West South Basin 32PCB Drop MH 33P Wetland 3 34P West - South (existing) 35PCB Drop MH 36PCB Drop MH 40.1P South East 40.2P South Central 40.3P South 41.1P South East 41.2P South Central 41.3P South West 44P Wetland 4 46P Triangle Basin 47P Bluff Creek - West Basin 48P Bluff Creek - East Basin 48P(2) Bluff Creek - East Basin Routing Diagram for Avienda - DP 7.3 - Ultimate Prepared by Landform Professional Services, Printed 5/18/2020 HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Subcat Reach Pond Link Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 2HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Area Listing (selected nodes) Area (acres) CN Description (subcatchment-numbers) 23.811 80 >75% Grass cover, Good, HSG D (21S, 22S, 24S, 25S, 28S, 31S, 33oS, 33S, 34dS, 34oS, 40.1S, 40.2S, 40.3S, 41.1S, 41.2S, 41.3S, 42.1S, 42.2S, 45S, 46S, 47S, 48.1S, 48S) 0.279 58 Meadow, non-grazed, HSG B (33oS) 0.711 78 Meadow, non-grazed, HSG D (22oS, 34oS) 3.643 98 Paved parking & roofs, HSG D (40.3S) 0.942 98 Paved parking and roofs, HSG D (24S) 2.101 98 Paved parking, & roofs HSG D (25S) 14.291 98 Paved parking, HSG D (21S, 29oS, 36oS, 40.1S, 40.2S, 41.1S, 41.2S, 41.3S, 46S, 48.1S) 6.498 98 Paved roads w/curbs & sewers, HSG D (28S, 47S, 48S) 0.117 98 Paved, HSG D (34dS) 0.693 98 Unconnected roofs, HSG D (31S, 33oS, 34oS) 3.650 95 Urban commercial, 85% imp, HSG D (45S) 0.966 96 Wetland, Good, HSG D (33oS, 33S) 21.428 55 Woods, Good, HSG B (34S, 35S, 43.1S, 43.2S, 44S) 79.129 80 TOTAL AREA Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 3HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Soil Listing (selected nodes) Area (acres) Soil Group Subcatchment Numbers 0.000 HSG A 21.707 HSG B 33oS, 34S, 35S, 43.1S, 43.2S, 44S 0.000 HSG C 57.422 HSG D 21S, 22oS, 22S, 24S, 25S, 28S, 29oS, 31S, 33oS, 33S, 34dS, 34oS, 36oS, 40.1S, 40.2S, 40.3S, 41.1S, 41.2S, 41.3S, 42.1S, 42.2S, 45S, 46S, 47S, 48.1S, 48S 0.000 Other 79.129 TOTAL AREA Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 4HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Ground Covers (selected nodes) HSG-A (acres) HSG-B (acres) HSG-C (acres) HSG-D (acres) Other (acres) Total (acres) Ground Cover Subcatchment Numbers 0.000 0.000 0.000 23.811 0.000 23.811 >75% Grass cover, Good 21 S, 22 S, 24 S, 25 S, 28 S, 31 S, 33 oS, 33 S, 34 dS, 34 oS, 40. 1S, 40. 2S, 40. 3S, 41. 1S, 41. 2S, 41. 3S, 42. 1S, 42. 2S, Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 5HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Ground Covers (selected nodes) (continued) HSG-A (acres) HSG-B (acres) HSG-C (acres) HSG-D (acres) Other (acres) Total (acres) Ground Cover Subcatchment Numbers 0.000 0.279 0.000 0.711 0.000 0.990 Meadow, non-grazed 22 oS, 33 oS, 34 oS 0.000 0.000 0.000 0.117 0.000 0.117 Paved 34 dS 0.000 0.000 0.000 14.291 0.000 14.291 Paved parking 21 S, 29 oS, 36 oS, 40. 1S, 40. 2S, 41. 1S, 41. 2S, 41. 3S, 46 S, 48. 1S 0.000 0.000 0.000 3.643 0.000 3.643 Paved parking & roofs 40. 3S 0.000 0.000 0.000 0.942 0.000 0.942 Paved parking and roofs 24 S Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 6HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Ground Covers (selected nodes) (continued) HSG-A (acres) HSG-B (acres) HSG-C (acres) HSG-D (acres) Other (acres) Total (acres) Ground Cover Subcatchment Numbers 0.000 0.000 0.000 2.101 0.000 2.101 Paved parking, & roofs 25 S 0.000 0.000 0.000 6.498 0.000 6.498 Paved roads w/curbs & sewers 28 S, 47 S, 48 S 0.000 0.000 0.000 0.693 0.000 0.693 Unconnected roofs 31 S, 33 oS, 34 oS 0.000 0.000 0.000 3.650 0.000 3.650 Urban commercial, 85% imp 45 S 0.000 0.000 0.000 0.966 0.000 0.966 Wetland, Good 33 oS, 33 S 0.000 21.428 0.000 0.000 0.000 21.428 Woods, Good 34 S, 35 S, 43. 1S, 43. 2S, 44 S 0.000 21.707 0.000 57.422 0.000 79.129 TOTAL AREA Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 7HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Pipe Listing (selected nodes) Line# Node Number In-Invert (feet) Out-Invert (feet) Length (feet) Slope (ft/ft) n Diam/Width (inches) Height (inches) Inside-Fill (inches) 1 21P 889.70 889.38 45.0 0.0071 0.011 18.0 0.0 0.0 2 24P 912.80 912.10 100.0 0.0070 0.011 12.0 0.0 0.0 3 25P 912.63 911.10 153.0 0.0100 0.011 18.0 0.0 0.0 4 28P 909.73 908.25 148.0 0.0100 0.011 12.0 0.0 0.0 5 31P 920.93 920.80 46.0 0.0028 0.011 12.0 0.0 0.0 6 32P 894.50 894.00 90.0 0.0056 0.011 18.0 0.0 0.0 7 33P 920.58 911.02 455.0 0.0210 0.013 12.0 0.0 0.0 8 34P 907.00 906.00 48.8 0.0205 0.013 15.0 0.0 0.0 9 35P 894.80 894.00 150.0 0.0053 0.011 12.0 0.0 0.0 10 36P 894.50 894.00 100.0 0.0050 0.011 12.0 0.0 0.0 11 40.1P 893.70 891.88 260.0 0.0070 0.011 12.0 0.0 0.0 12 40.2P 895.00 893.25 250.0 0.0070 0.011 12.0 0.0 0.0 13 40.3P 897.50 896.27 175.0 0.0070 0.011 12.0 0.0 0.0 14 41.1P 888.00 887.51 70.0 0.0070 0.011 12.0 0.0 0.0 15 41.2P 881.50 881.28 22.0 0.0100 0.011 18.0 0.0 0.0 16 41.3P 889.75 889.43 45.0 0.0071 0.011 12.0 0.0 0.0 17 46P 884.37 884.00 125.0 0.0030 0.011 18.0 0.0 0.0 18 47P 908.20 905.13 307.0 0.0100 0.011 12.0 0.0 0.0 19 48P 895.35 888.98 637.0 0.0100 0.011 12.0 0.0 0.0 20 48P(2) 895.75 895.25 50.0 0.0100 0.011 8.0 0.0 0.0 MSE 24-hr 3 1-Year A Rainfall=2.47"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 8HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Time span=0.00-360.00 hrs, dt=0.01 hrs, 36001 points Runoff by SCS TR-20 method, UH=SCS, Weighted-Q Reach routing by Dyn-Stor-Ind method - Pond routing by Dyn-Stor-Ind method Runoff Area=228,234 sf 16.43% Impervious Runoff Depth=1.09"Subcatchment 21S: Direct to 21P Tc=10.0 min CN=WQ Runoff=8.46 cfs 0.478 af Runoff Area=10,548 sf 0.00% Impervious Runoff Depth=0.77"Subcatchment 22oS: From Lyman Flow Length=57' Slope=0.3330 '/' Tc=5.0 min CN=78 Runoff=0.36 cfs 0.016 af Runoff Area=41,671 sf 0.00% Impervious Runoff Depth=0.87"Subcatchment 22S: Direct to Wetland 6 Tc=5.0 min CN=80 Runoff=1.63 cfs 0.069 af Runoff Area=59,105 sf 69.40% Impervious Runoff Depth=1.82"Subcatchment 24S: Northwest Tc=10.0 min CN=WQ Runoff=3.46 cfs 0.206 af Runoff Area=202,586 sf 45.17% Impervious Runoff Depth=1.49"Subcatchment 25S: West North Tc=10.0 min CN=WQ Runoff=9.87 cfs 0.577 af Runoff Area=121,658 sf 66.00% Impervious Runoff Depth=1.77"Subcatchment 28S: Avienda Pkwy - NW Tc=15.0 min CN=WQ Runoff=5.89 cfs 0.413 af Runoff Area=1,162 sf 100.00% Impervious Runoff Depth=2.24"Subcatchment 29oS: North Offsite Tc=5.0 min CN=98 Runoff=0.10 cfs 0.005 af Runoff Area=32,839 sf 22.84% Impervious Runoff Depth=1.18"Subcatchment 31S: West Central Flow Length=360' Slope=0.0200 '/' Tc=14.7 min UI Adjusted CN=WQ Runoff=1.09 cfs 0.074 af Runoff Area=115,865 sf 17.26% Impervious Runoff Depth=1.16"Subcatchment 33oS: Offsite West - North Flow Length=431' Tc=7.3 min UI Adjusted CN=WQ Runoff=5.00 cfs 0.256 af Runoff Area=78,153 sf 0.00% Impervious Runoff Depth=1.31"Subcatchment 33S: Direct to Wetland 3 Tc=12.0 min CN=WQ Runoff=3.21 cfs 0.195 af Runoff Area=25,470 sf 19.98% Impervious Runoff Depth=1.14"Subcatchment 34dS: Offsite West Direct Tc=10.0 min CN=WQ Runoff=0.98 cfs 0.056 af Runoff Area=32,710 sf 8.25% Impervious Runoff Depth=0.92"Subcatchment 34oS: Offsite to West South Flow Length=37' Slope=0.1620 '/' Tc=5.0 min UI Adjusted CN=WQ Runoff=1.31 cfs 0.058 af Runoff Area=2.423 ac 0.00% Impervious Runoff Depth=0.08"Subcatchment 34S: West Woods Flow Length=268' Tc=11.1 min CN=55 Runoff=0.05 cfs 0.016 af Runoff Area=3.790 ac 0.00% Impervious Runoff Depth=0.08"Subcatchment 35S: Southwest Flow Length=270' Tc=18.3 min CN=55 Runoff=0.07 cfs 0.024 af Runoff Area=1,628 sf 100.00% Impervious Runoff Depth=2.24"Subcatchment 36oS: Southwest Offsite Tc=5.0 min CN=98 Runoff=0.14 cfs 0.007 af Runoff Area=163,468 sf 81.66% Impervious Runoff Depth=1.99"Subcatchment 40.1S: South - East Tc=10.0 min CN=WQ Runoff=10.40 cfs 0.622 af MSE 24-hr 3 1-Year A Rainfall=2.47"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 9HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Runoff Area=200,567 sf 76.19% Impervious Runoff Depth=1.91"Subcatchment 40.2S: South - Central Tc=10.0 min CN=WQ Runoff=12.32 cfs 0.734 af Runoff Area=228,145 sf 69.55% Impervious Runoff Depth=1.82"Subcatchment 40.3S: South - West Tc=10.0 min CN=WQ Runoff=13.39 cfs 0.796 af Runoff Area=69,984 sf 85.30% Impervious Runoff Depth=2.04"Subcatchment 41.1S: South - East Tc=10.0 min CN=WQ Runoff=4.56 cfs 0.273 af Runoff Area=156,419 sf 80.17% Impervious Runoff Depth=1.97"Subcatchment 41.2S: South - Central Tc=10.0 min CN=WQ Runoff=9.86 cfs 0.589 af Runoff Area=29,884 sf 93.81% Impervious Runoff Depth=2.16"Subcatchment 41.3S: South - west Tc=10.0 min CN=WQ Runoff=2.05 cfs 0.123 af Runoff Area=41,871 sf 0.00% Impervious Runoff Depth=0.87"Subcatchment 42.1S: South Tc=5.0 min CN=80 Runoff=1.63 cfs 0.070 af Runoff Area=24,525 sf 0.00% Impervious Runoff Depth=0.87"Subcatchment 42.2S: Southeast Tc=5.0 min CN=80 Runoff=0.96 cfs 0.041 af Runoff Area=3.222 ac 0.00% Impervious Runoff Depth=0.08"Subcatchment 43.1S: East Woods Flow Length=530' Tc=15.2 min CN=55 Runoff=0.06 cfs 0.021 af Runoff Area=1.862 ac 0.00% Impervious Runoff Depth=0.08"Subcatchment 43.2S: Northeast Woods Flow Length=623' Tc=19.5 min CN=55 Runoff=0.04 cfs 0.012 af Runoff Area=441,314 sf 0.00% Impervious Runoff Depth=0.08"Subcatchment 44S: North Woods Flow Length=599' Tc=16.5 min CN=55 Runoff=0.19 cfs 0.065 af Runoff Area=206,303 sf 65.51% Impervious Runoff Depth=1.69"Subcatchment 45S: Central - West Tc=10.0 min CN=WQ Runoff=11.85 cfs 0.667 af Runoff Area=97,082 sf 19.60% Impervious Runoff Depth=1.14"Subcatchment 46S: South Townhomes Flow Length=701' Tc=12.6 min CN=WQ Runoff=3.36 cfs 0.211 af Runoff Area=2.295 ac 80.87% Impervious Runoff Depth=1.98"Subcatchment 47S: Bluff Creek Blvd - West Tc=5.0 min CN=WQ Runoff=7.74 cfs 0.378 af Runoff Area=93,721 sf 68.04% Impervious Runoff Depth=1.80"Subcatchment 48.1S: Direct to 48P (2) Tc=10.0 min CN=WQ Runoff=5.44 cfs 0.323 af Runoff Area=3.441 ac 81.34% Impervious Runoff Depth=1.98"Subcatchment 48S: Bluff Creek Blvd - East Tc=5.0 min CN=WQ Runoff=11.64 cfs 0.569 af Inflow=3.07 cfs 0.973 afReach 20R: Northwest Drainage Outflow=3.07 cfs 0.973 af Avg. Flow Depth=0.35' Max Vel=0.68 fps Inflow=3.08 cfs 0.973 afReach 21R: Lower Wetland 6 n=0.050 L=187.0' S=0.0053 '/' Capacity=3,072.14 cfs Outflow=3.07 cfs 0.973 af MSE 24-hr 3 1-Year A Rainfall=2.47"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 10HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Inflow=2.51 cfs 0.666 afReach 30R: SW Drainage Outflow=2.51 cfs 0.666 af Inflow=0.98 cfs 0.080 afReach 35R: Direct Runoff Outflow=0.98 cfs 0.080 af Inflow=8.85 cfs 1.707 afReach 40R: South Drainage Outflow=8.85 cfs 1.707 af Inflow=5.37 cfs 0.520 afReach 42.1R: South Outflow=5.37 cfs 0.520 af Inflow=1.12 cfs 0.483 afReach 42.2R: Southeast Outflow=1.12 cfs 0.483 af Inflow=3.11 cfs 0.684 afReach 44R: Wetland 4 Channel Outflow=3.11 cfs 0.684 af Inflow=3.13 cfs 0.608 afReach 48R: Development to Wetland 4 Outflow=3.13 cfs 0.608 af Inflow=12.25 cfs 3.346 afReach 50R: Bluff Creek Drainage Outflow=12.25 cfs 3.346 af Peak Elev=891.59' Storage=21,491 cf Inflow=12.96 cfs 1.196 afPond 21P: North Basin Discarded=0.05 cfs 0.313 af Primary=2.91 cfs 0.883 af Secondary=0.00 cfs 0.000 af Outflow=2.96 cfs 1.196 af Peak Elev=914.20' Storage=4,729 cf Inflow=3.46 cfs 0.206 afPond 24P: Northwest Basin Discarded=0.02 cfs 0.090 af Primary=0.86 cfs 0.116 af Outflow=0.88 cfs 0.206 af Peak Elev=914.62' Storage=9,455 cf Inflow=9.87 cfs 0.577 afPond 25P: West - North Discarded=0.02 cfs 0.130 af Primary=5.57 cfs 0.446 af Outflow=5.59 cfs 0.577 af Peak Elev=910.93' Storage=11,477 cf Inflow=5.89 cfs 0.413 afPond 28P: Avienda Pkwy - NW Basin Discarded=0.04 cfs 0.257 af Primary=0.47 cfs 0.156 af Outflow=0.51 cfs 0.413 af Peak Elev=922.28' Storage=1,019 cf Inflow=1.09 cfs 0.074 afPond 31P: West South Basin Discarded=0.00 cfs 0.020 af Primary=0.78 cfs 0.054 af Secondary=0.00 cfs 0.000 af Outflow=0.78 cfs 0.074 af Peak Elev=895.79' Inflow=5.57 cfs 0.446 afPond 32P: Drop MH 18.0" Round Culvert n=0.011 L=90.0' S=0.0056 '/' Outflow=5.57 cfs 0.446 af Peak Elev=921.14' Storage=10,731 cf Inflow=7.89 cfs 0.506 afPond 33P: Wetland 3 Primary=1.14 cfs 0.506 af Secondary=0.00 cfs 0.000 af Outflow=1.14 cfs 0.506 af Peak Elev=907.58' Storage=0.009 af Inflow=1.83 cfs 0.579 afPond 34P: West - South (existing) Outflow=1.45 cfs 0.579 af Peak Elev=895.30' Inflow=0.86 cfs 0.116 afPond 35P: Drop MH 12.0" Round Culvert n=0.011 L=150.0' S=0.0053 '/' Outflow=0.86 cfs 0.116 af MSE 24-hr 3 1-Year A Rainfall=2.47"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 11HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Peak Elev=894.87' Inflow=0.47 cfs 0.156 afPond 36P: Drop MH 12.0" Round Culvert n=0.011 L=100.0' S=0.0050 '/' Outflow=0.47 cfs 0.156 af Peak Elev=894.88' Storage=18,588 cf Inflow=10.40 cfs 0.622 afPond 40.1P: South East Discarded=0.07 cfs 0.433 af Primary=0.42 cfs 0.189 af Outflow=0.50 cfs 0.622 af Peak Elev=895.83' Storage=24,679 cf Inflow=12.32 cfs 0.734 afPond 40.2P: South Central Discarded=0.13 cfs 0.732 af Primary=0.00 cfs 0.002 af Outflow=0.14 cfs 0.734 af Peak Elev=898.76' Storage=23,422 cf Inflow=13.39 cfs 0.796 afPond 40.3P: South Discarded=0.08 cfs 0.520 af Primary=0.59 cfs 0.276 af Outflow=0.67 cfs 0.796 af Peak Elev=888.61' Storage=8,753 cf Inflow=4.56 cfs 0.273 afPond 41.1P: South East Discarded=0.06 cfs 0.273 af Primary=0.00 cfs 0.000 af Outflow=0.06 cfs 0.273 af Peak Elev=883.61' Storage=10,803 cf Inflow=9.86 cfs 0.589 afPond 41.2P: South Central Discarded=0.02 cfs 0.141 af Primary=4.88 cfs 0.448 af Outflow=4.91 cfs 0.589 af Peak Elev=890.31' Storage=3,895 cf Inflow=2.05 cfs 0.123 afPond 41.3P: South West Discarded=0.03 cfs 0.123 af Primary=0.00 cfs 0.000 af Outflow=0.03 cfs 0.123 af Peak Elev=884.30' Storage=357 cf Inflow=3.13 cfs 0.673 afPond 44P: Wetland 4 Outflow=3.11 cfs 0.672 af Peak Elev=886.35' Storage=957 cf Inflow=3.36 cfs 0.211 afPond 46P: Triangle Basin Discarded=0.00 cfs 0.013 af Primary=3.11 cfs 0.198 af Secondary=0.00 cfs 0.000 af Outflow=3.11 cfs 0.211 af Peak Elev=909.23' Storage=34,443 cf Inflow=18.36 cfs 1.045 afPond 47P: Bluff Creek - West Basin Discarded=0.15 cfs 0.912 af Primary=0.18 cfs 0.134 af Outflow=0.33 cfs 1.045 af Peak Elev=896.43' Storage=17,504 cf Inflow=11.64 cfs 0.569 afPond 48P: Bluff Creek - East Basin Discarded=0.07 cfs 0.438 af Primary=0.26 cfs 0.131 af Outflow=0.33 cfs 0.569 af Peak Elev=896.92' Storage=8,839 cf Inflow=5.44 cfs 0.323 afPond 48P(2): Bluff Creek - East Basin Discarded=0.03 cfs 0.201 af Primary=0.41 cfs 0.122 af Outflow=0.44 cfs 0.323 af Total Runoff Area = 79.129 ac Runoff Volume = 7.943 af Average Runoff Depth = 1.20" 60.33% Pervious = 47.742 ac 39.67% Impervious = 31.387 ac MSE 24-hr 3 1-Year A Rainfall=2.47"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 12HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 21S: Direct to 21P Runoff = 8.46 cfs @ 12.18 hrs, Volume= 0.478 af, Depth= 1.09" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MSE 24-hr 3 1-Year A Rainfall=2.47" Area (sf) CN Description 37,500 98 Paved parking, HSG D 190,734 80 >75% Grass cover, Good, HSG D 228,234 Weighted Average 190,734 80 83.57% Pervious Area 37,500 98 16.43% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 10.0 Direct Entry, Subcatchment 21S: Direct to 21P Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)9 8 7 6 5 4 3 2 1 0 MSE 24-hr 3 1-Year A Rainfall=2.47" Runoff Area=228,234 sf Runoff Volume=0.478 af Runoff Depth=1.09" Tc=10.0 min CN=WQ 8.46 cfs MSE 24-hr 3 1-Year A Rainfall=2.47"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 13HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 22oS: From Lyman Runoff = 0.36 cfs @ 12.13 hrs, Volume= 0.016 af, Depth= 0.77" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MSE 24-hr 3 1-Year A Rainfall=2.47" Area (sf) CN Description 10,548 78 Meadow, non-grazed, HSG D 10,548 78 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 2.1 57 0.3330 0.44 Sheet Flow, Grass: Short n= 0.150 P2= 2.87" 2.9 Direct Entry, Make up to 5 minutes 5.0 57 Total Subcatchment 22oS: From Lyman Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.4 0.38 0.36 0.34 0.32 0.3 0.28 0.26 0.24 0.22 0.2 0.18 0.16 0.14 0.12 0.1 0.08 0.06 0.04 0.02 0 MSE 24-hr 3 1-Year A Rainfall=2.47" Runoff Area=10,548 sf Runoff Volume=0.016 af Runoff Depth=0.77" Flow Length=57' Slope=0.3330 '/' Tc=5.0 min CN=78 0.36 cfs MSE 24-hr 3 1-Year A Rainfall=2.47"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 14HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 22S: Direct to Wetland 6 Runoff = 1.63 cfs @ 12.13 hrs, Volume= 0.069 af, Depth= 0.87" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MSE 24-hr 3 1-Year A Rainfall=2.47" Area (sf) CN Description 41,671 80 >75% Grass cover, Good, HSG D 41,671 80 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 5.0 Direct Entry, Subcatchment 22S: Direct to Wetland 6 Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)1 0 MSE 24-hr 3 1-Year A Rainfall=2.47" Runoff Area=41,671 sf Runoff Volume=0.069 af Runoff Depth=0.87" Tc=5.0 min CN=80 1.63 cfs MSE 24-hr 3 1-Year A Rainfall=2.47"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 15HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 24S: Northwest Runoff = 3.46 cfs @ 12.17 hrs, Volume= 0.206 af, Depth= 1.82" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MSE 24-hr 3 1-Year A Rainfall=2.47" Area (sf) CN Description 18,089 80 >75% Grass cover, Good, HSG D * 41,016 98 Paved parking and roofs, HSG D 59,105 Weighted Average 18,089 80 30.60% Pervious Area 41,016 98 69.40% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 10.0 Direct Entry, Subcatchment 24S: Northwest Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)3 2 1 0 MSE 24-hr 3 1-Year A Rainfall=2.47" Runoff Area=59,105 sf Runoff Volume=0.206 af Runoff Depth=1.82" Tc=10.0 min CN=WQ 3.46 cfs MSE 24-hr 3 1-Year A Rainfall=2.47"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 16HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 25S: West North Runoff = 9.87 cfs @ 12.17 hrs, Volume= 0.577 af, Depth= 1.49" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MSE 24-hr 3 1-Year A Rainfall=2.47" Area (sf) CN Description 111,088 80 >75% Grass cover, Good, HSG D * 91,498 98 Paved parking, & roofs HSG D 202,586 Weighted Average 111,088 80 54.83% Pervious Area 91,498 98 45.17% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 10.0 Direct Entry, Subcatchment 25S: West North Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)11 10 9 8 7 6 5 4 3 2 1 0 MSE 24-hr 3 1-Year A Rainfall=2.47" Runoff Area=202,586 sf Runoff Volume=0.577 af Runoff Depth=1.49" Tc=10.0 min CN=WQ 9.87 cfs MSE 24-hr 3 1-Year A Rainfall=2.47"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 17HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 28S: Avienda Pkwy - NW Runoff = 5.89 cfs @ 12.23 hrs, Volume= 0.413 af, Depth= 1.77" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MSE 24-hr 3 1-Year A Rainfall=2.47" Area (sf) CN Description 41,364 80 >75% Grass cover, Good, HSG D 80,294 98 Paved roads w/curbs & sewers, HSG D 121,658 Weighted Average 41,364 80 34.00% Pervious Area 80,294 98 66.00% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 15.0 Direct Entry, Subcatchment 28S: Avienda Pkwy - NW Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)6 5 4 3 2 1 0 MSE 24-hr 3 1-Year A Rainfall=2.47" Runoff Area=121,658 sf Runoff Volume=0.413 af Runoff Depth=1.77" Tc=15.0 min CN=WQ 5.89 cfs MSE 24-hr 3 1-Year A Rainfall=2.47"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 18HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 29oS: North Offsite Runoff = 0.10 cfs @ 12.12 hrs, Volume= 0.005 af, Depth= 2.24" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MSE 24-hr 3 1-Year A Rainfall=2.47" Area (sf) CN Description 1,162 98 Paved parking, HSG D 1,162 98 100.00% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 5.0 Direct Entry, Subcatchment 29oS: North Offsite Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.11 0.105 0.1 0.095 0.09 0.085 0.08 0.075 0.07 0.065 0.06 0.055 0.05 0.045 0.04 0.035 0.03 0.025 0.02 0.015 0.01 0.005 0 MSE 24-hr 3 1-Year A Rainfall=2.47" Runoff Area=1,162 sf Runoff Volume=0.005 af Runoff Depth=2.24" Tc=5.0 min CN=98 0.10 cfs MSE 24-hr 3 1-Year A Rainfall=2.47"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 19HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 31S: West Central Runoff = 1.09 cfs @ 12.23 hrs, Volume= 0.074 af, Depth= 1.18" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MSE 24-hr 3 1-Year A Rainfall=2.47" Area (sf) CN Adj Description 25,339 80 80 >75% Grass cover, Good, HSG D 7,500 98 98 Unconnected roofs, HSG D 32,839 Weighted Average 25,339 80 80 77.16% Pervious Area 7,500 98 98 22.84% Impervious Area 7,500 100.00% Unconnected Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 10.3 100 0.0200 0.16 Sheet Flow, Grass: Short n= 0.150 P2= 2.87" 4.4 260 0.0200 0.99 Shallow Concentrated Flow, Short Grass Pasture Kv= 7.0 fps 14.7 360 Total Subcatchment 31S: West Central Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)1 0 MSE 24-hr 3 1-Year A Rainfall=2.47" Runoff Area=32,839 sf Runoff Volume=0.074 af Runoff Depth=1.18" Flow Length=360' Slope=0.0200 '/' Tc=14.7 min UI Adjusted CN=WQ 1.09 cfs MSE 24-hr 3 1-Year A Rainfall=2.47"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 20HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 33oS: Offsite West - North Runoff = 5.00 cfs @ 12.15 hrs, Volume= 0.256 af, Depth= 1.16" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MSE 24-hr 3 1-Year A Rainfall=2.47" Area (sf) CN Adj Description 20,000 98 98 Unconnected roofs, HSG D 71,000 80 80 >75% Grass cover, Good, HSG D * 12,720 96 96 Wetland, Good, HSG D 12,145 58 58 Meadow, non-grazed, HSG B 115,865 Weighted Average 95,865 79 79 82.74% Pervious Area 20,000 98 98 17.26% Impervious Area 20,000 100.00% Unconnected Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 5.0 25 0.0200 0.08 Sheet Flow, Grass: Dense n= 0.240 P2= 2.87" 2.3 406 0.0390 2.96 Shallow Concentrated Flow, Grassed Waterway Kv= 15.0 fps 7.3 431 Total Subcatchment 33oS: Offsite West - North Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)5 4 3 2 1 0 MSE 24-hr 3 1-Year A Rainfall=2.47" Runoff Area=115,865 sf Runoff Volume=0.256 af Runoff Depth=1.16" Flow Length=431' Tc=7.3 min UI Adjusted CN=WQ 5.00 cfs MSE 24-hr 3 1-Year A Rainfall=2.47"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 21HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 33S: Direct to Wetland 3 Runoff = 3.21 cfs @ 12.20 hrs, Volume= 0.195 af, Depth= 1.31" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MSE 24-hr 3 1-Year A Rainfall=2.47" Area (sf) CN Description * 29,365 96 Wetland, Good, HSG D 48,788 80 >75% Grass cover, Good, HSG D 78,153 Weighted Average 78,153 86 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 12.0 Direct Entry, Subcatchment 33S: Direct to Wetland 3 Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)3 2 1 0 MSE 24-hr 3 1-Year A Rainfall=2.47" Runoff Area=78,153 sf Runoff Volume=0.195 af Runoff Depth=1.31" Tc=12.0 min CN=WQ 3.21 cfs MSE 24-hr 3 1-Year A Rainfall=2.47"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 22HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 34dS: Offsite West Direct Runoff = 0.98 cfs @ 12.18 hrs, Volume= 0.056 af, Depth= 1.14" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MSE 24-hr 3 1-Year A Rainfall=2.47" Area (sf) CN Description 20,380 80 >75% Grass cover, Good, HSG D * 5,090 98 Paved, HSG D 25,470 Weighted Average 20,380 80 80.02% Pervious Area 5,090 98 19.98% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 10.0 Direct Entry, Subcatchment 34dS: Offsite West Direct Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)1 0 MSE 24-hr 3 1-Year A Rainfall=2.47" Runoff Area=25,470 sf Runoff Volume=0.056 af Runoff Depth=1.14" Tc=10.0 min CN=WQ 0.98 cfs MSE 24-hr 3 1-Year A Rainfall=2.47"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 23HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 34oS: Offsite to West South Runoff = 1.31 cfs @ 12.13 hrs, Volume= 0.058 af, Depth= 0.92" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MSE 24-hr 3 1-Year A Rainfall=2.47" Area (sf) CN Adj Description 20,410 78 78 Meadow, non-grazed, HSG D 2,700 98 98 Unconnected roofs, HSG D 9,600 80 80 >75% Grass cover, Good, HSG D 32,710 Weighted Average 30,010 79 79 91.75% Pervious Area 2,700 98 98 8.25% Impervious Area 2,700 100.00% Unconnected Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 2.0 37 0.1620 0.30 Sheet Flow, Grass: Short n= 0.150 P2= 2.87" 3.0 Direct Entry, Make up to 5 minutes 5.0 37 Total Subcatchment 34oS: Offsite to West South Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)1 0 MSE 24-hr 3 1-Year A Rainfall=2.47" Runoff Area=32,710 sf Runoff Volume=0.058 af Runoff Depth=0.92" Flow Length=37' Slope=0.1620 '/' Tc=5.0 min UI Adjusted CN=WQ 1.31 cfs MSE 24-hr 3 1-Year A Rainfall=2.47"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 24HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 34S: West Woods Runoff = 0.05 cfs @ 12.58 hrs, Volume= 0.016 af, Depth= 0.08" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MSE 24-hr 3 1-Year A Rainfall=2.47" Area (ac) CN Description 2.423 55 Woods, Good, HSG B 2.423 55 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 8.4 50 0.0600 0.10 Sheet Flow, Woods: Light underbrush n= 0.400 P2= 2.87" 2.7 218 0.0710 1.33 Shallow Concentrated Flow, Woodland Kv= 5.0 fps 11.1 268 Total Subcatchment 34S: West Woods Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.05 0.045 0.04 0.035 0.03 0.025 0.02 0.015 0.01 0.005 0 MSE 24-hr 3 1-Year A Rainfall=2.47" Runoff Area=2.423 ac Runoff Volume=0.016 af Runoff Depth=0.08" Flow Length=268' Tc=11.1 min CN=55 0.05 cfs MSE 24-hr 3 1-Year A Rainfall=2.47"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 25HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 35S: Southwest Runoff = 0.07 cfs @ 13.12 hrs, Volume= 0.024 af, Depth= 0.08" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MSE 24-hr 3 1-Year A Rainfall=2.47" Area (ac) CN Description 3.790 55 Woods, Good, HSG B 3.790 55 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 16.0 75 0.0270 0.08 Sheet Flow, Woods: Light underbrush n= 0.400 P2= 2.87" 2.3 195 0.0820 1.43 Shallow Concentrated Flow, Woodland Kv= 5.0 fps 18.3 270 Total Subcatchment 35S: Southwest Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.075 0.07 0.065 0.06 0.055 0.05 0.045 0.04 0.035 0.03 0.025 0.02 0.015 0.01 0.005 0 MSE 24-hr 3 1-Year A Rainfall=2.47" Runoff Area=3.790 ac Runoff Volume=0.024 af Runoff Depth=0.08" Flow Length=270' Tc=18.3 min CN=55 0.07 cfs MSE 24-hr 3 1-Year A Rainfall=2.47"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 26HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 36oS: Southwest Offsite Runoff = 0.14 cfs @ 12.12 hrs, Volume= 0.007 af, Depth= 2.24" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MSE 24-hr 3 1-Year A Rainfall=2.47" Area (sf) CN Description 1,628 98 Paved parking, HSG D 1,628 98 100.00% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 5.0 Direct Entry, Subcatchment 36oS: Southwest Offsite Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.15 0.14 0.13 0.12 0.11 0.1 0.09 0.08 0.07 0.06 0.05 0.04 0.03 0.02 0.01 0 MSE 24-hr 3 1-Year A Rainfall=2.47" Runoff Area=1,628 sf Runoff Volume=0.007 af Runoff Depth=2.24" Tc=5.0 min CN=98 0.14 cfs MSE 24-hr 3 1-Year A Rainfall=2.47"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 27HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 40.1S: South - East Runoff = 10.40 cfs @ 12.17 hrs, Volume= 0.622 af, Depth= 1.99" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MSE 24-hr 3 1-Year A Rainfall=2.47" Area (sf) CN Description 29,976 80 >75% Grass cover, Good, HSG D 133,492 98 Paved parking, HSG D 163,468 Weighted Average 29,976 80 18.34% Pervious Area 133,492 98 81.66% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 10.0 Direct Entry, Subcatchment 40.1S: South - East Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)11 10 9 8 7 6 5 4 3 2 1 0 MSE 24-hr 3 1-Year A Rainfall=2.47" Runoff Area=163,468 sf Runoff Volume=0.622 af Runoff Depth=1.99" Tc=10.0 min CN=WQ 10.40 cfs MSE 24-hr 3 1-Year A Rainfall=2.47"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 28HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 40.2S: South - Central Runoff = 12.32 cfs @ 12.17 hrs, Volume= 0.734 af, Depth= 1.91" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MSE 24-hr 3 1-Year A Rainfall=2.47" Area (sf) CN Description 47,748 80 >75% Grass cover, Good, HSG D 152,819 98 Paved parking, HSG D 200,567 Weighted Average 47,748 80 23.81% Pervious Area 152,819 98 76.19% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 10.0 Direct Entry, Subcatchment 40.2S: South - Central Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)13 12 11 10 9 8 7 6 5 4 3 2 1 0 MSE 24-hr 3 1-Year A Rainfall=2.47" Runoff Area=200,567 sf Runoff Volume=0.734 af Runoff Depth=1.91" Tc=10.0 min CN=WQ 12.32 cfs MSE 24-hr 3 1-Year A Rainfall=2.47"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 29HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 40.3S: South - West Runoff = 13.39 cfs @ 12.17 hrs, Volume= 0.796 af, Depth= 1.82" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MSE 24-hr 3 1-Year A Rainfall=2.47" Area (sf) CN Description 69,464 80 >75% Grass cover, Good, HSG D * 158,681 98 Paved parking & roofs, HSG D 228,145 Weighted Average 69,464 80 30.45% Pervious Area 158,681 98 69.55% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 10.0 Direct Entry, Subcatchment 40.3S: South - West Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 MSE 24-hr 3 1-Year A Rainfall=2.47" Runoff Area=228,145 sf Runoff Volume=0.796 af Runoff Depth=1.82" Tc=10.0 min CN=WQ 13.39 cfs MSE 24-hr 3 1-Year A Rainfall=2.47"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 30HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 41.1S: South - East Runoff = 4.56 cfs @ 12.17 hrs, Volume= 0.273 af, Depth= 2.04" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MSE 24-hr 3 1-Year A Rainfall=2.47" Area (sf) CN Description 10,289 80 >75% Grass cover, Good, HSG D 59,695 98 Paved parking, HSG D 69,984 Weighted Average 10,289 80 14.70% Pervious Area 59,695 98 85.30% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 10.0 Direct Entry, Subcatchment 41.1S: South - East Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)5 4 3 2 1 0 MSE 24-hr 3 1-Year A Rainfall=2.47" Runoff Area=69,984 sf Runoff Volume=0.273 af Runoff Depth=2.04" Tc=10.0 min CN=WQ 4.56 cfs MSE 24-hr 3 1-Year A Rainfall=2.47"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 31HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 41.2S: South - Central Runoff = 9.86 cfs @ 12.17 hrs, Volume= 0.589 af, Depth= 1.97" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MSE 24-hr 3 1-Year A Rainfall=2.47" Area (sf) CN Description 31,015 80 >75% Grass cover, Good, HSG D 125,404 98 Paved parking, HSG D 156,419 Weighted Average 31,015 80 19.83% Pervious Area 125,404 98 80.17% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 10.0 Direct Entry, Subcatchment 41.2S: South - Central Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)11 10 9 8 7 6 5 4 3 2 1 0 MSE 24-hr 3 1-Year A Rainfall=2.47" Runoff Area=156,419 sf Runoff Volume=0.589 af Runoff Depth=1.97" Tc=10.0 min CN=WQ 9.86 cfs MSE 24-hr 3 1-Year A Rainfall=2.47"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 32HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 41.3S: South - west Runoff = 2.05 cfs @ 12.17 hrs, Volume= 0.123 af, Depth= 2.16" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MSE 24-hr 3 1-Year A Rainfall=2.47" Area (sf) CN Description 1,850 80 >75% Grass cover, Good, HSG D 28,034 98 Paved parking, HSG D 29,884 Weighted Average 1,850 80 6.19% Pervious Area 28,034 98 93.81% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 10.0 Direct Entry, Subcatchment 41.3S: South - west Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)2 1 0 MSE 24-hr 3 1-Year A Rainfall=2.47" Runoff Area=29,884 sf Runoff Volume=0.123 af Runoff Depth=2.16" Tc=10.0 min CN=WQ 2.05 cfs MSE 24-hr 3 1-Year A Rainfall=2.47"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 33HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 42.1S: South Runoff = 1.63 cfs @ 12.13 hrs, Volume= 0.070 af, Depth= 0.87" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MSE 24-hr 3 1-Year A Rainfall=2.47" Area (sf) CN Description 41,871 80 >75% Grass cover, Good, HSG D 41,871 80 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 5.0 Direct Entry, Subcatchment 42.1S: South Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)1 0 MSE 24-hr 3 1-Year A Rainfall=2.47" Runoff Area=41,871 sf Runoff Volume=0.070 af Runoff Depth=0.87" Tc=5.0 min CN=80 1.63 cfs MSE 24-hr 3 1-Year A Rainfall=2.47"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 34HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 42.2S: Southeast Runoff = 0.96 cfs @ 12.13 hrs, Volume= 0.041 af, Depth= 0.87" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MSE 24-hr 3 1-Year A Rainfall=2.47" Area (sf) CN Description 24,525 80 >75% Grass cover, Good, HSG D 24,525 80 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 5.0 Direct Entry, Subcatchment 42.2S: Southeast Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)1 0 MSE 24-hr 3 1-Year A Rainfall=2.47" Runoff Area=24,525 sf Runoff Volume=0.041 af Runoff Depth=0.87" Tc=5.0 min CN=80 0.96 cfs MSE 24-hr 3 1-Year A Rainfall=2.47"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 35HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 43.1S: East Woods Runoff = 0.06 cfs @ 12.65 hrs, Volume= 0.021 af, Depth= 0.08" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MSE 24-hr 3 1-Year A Rainfall=2.47" Area (ac) CN Description 3.222 55 Woods, Good, HSG B 3.222 55 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 11.1 75 0.0670 0.11 Sheet Flow, Woods: Light underbrush n= 0.400 P2= 2.87" 4.1 455 0.1380 1.86 Shallow Concentrated Flow, Woodland Kv= 5.0 fps 15.2 530 Total Subcatchment 43.1S: East Woods Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.065 0.06 0.055 0.05 0.045 0.04 0.035 0.03 0.025 0.02 0.015 0.01 0.005 0 MSE 24-hr 3 1-Year A Rainfall=2.47" Runoff Area=3.222 ac Runoff Volume=0.021 af Runoff Depth=0.08" Flow Length=530' Tc=15.2 min CN=55 0.06 cfs MSE 24-hr 3 1-Year A Rainfall=2.47"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 36HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 43.2S: Northeast Woods Runoff = 0.04 cfs @ 13.15 hrs, Volume= 0.012 af, Depth= 0.08" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MSE 24-hr 3 1-Year A Rainfall=2.47" Area (ac) CN Description 1.862 55 Woods, Good, HSG B 1.862 55 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 14.2 100 0.0650 0.12 Sheet Flow, Woods: Light underbrush n= 0.400 P2= 2.87" 5.3 523 0.1080 1.64 Shallow Concentrated Flow, Woodland Kv= 5.0 fps 19.5 623 Total Subcatchment 43.2S: Northeast Woods Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.038 0.036 0.034 0.032 0.03 0.028 0.026 0.024 0.022 0.02 0.018 0.016 0.014 0.012 0.01 0.008 0.006 0.004 0.002 0 MSE 24-hr 3 1-Year A Rainfall=2.47" Runoff Area=1.862 ac Runoff Volume=0.012 af Runoff Depth=0.08" Flow Length=623' Tc=19.5 min CN=55 0.04 cfs MSE 24-hr 3 1-Year A Rainfall=2.47"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 37HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 44S: North Woods Runoff = 0.19 cfs @ 13.07 hrs, Volume= 0.065 af, Depth= 0.08" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MSE 24-hr 3 1-Year A Rainfall=2.47" Area (sf) CN Description 441,314 55 Woods, Good, HSG B 441,314 55 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 11.2 75 0.0660 0.11 Sheet Flow, Woods: Light underbrush n= 0.400 P2= 2.87" 5.3 524 0.1090 1.65 Shallow Concentrated Flow, Woodland Kv= 5.0 fps 16.5 599 Total Subcatchment 44S: North Woods Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.21 0.2 0.19 0.18 0.17 0.16 0.15 0.14 0.13 0.12 0.11 0.1 0.09 0.08 0.07 0.06 0.05 0.04 0.03 0.02 0.01 0 MSE 24-hr 3 1-Year A Rainfall=2.47" Runoff Area=441,314 sf Runoff Volume=0.065 af Runoff Depth=0.08" Flow Length=599' Tc=16.5 min CN=55 0.19 cfs MSE 24-hr 3 1-Year A Rainfall=2.47"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 38HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 45S: Central - West Runoff = 11.85 cfs @ 12.17 hrs, Volume= 0.667 af, Depth= 1.69" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MSE 24-hr 3 1-Year A Rainfall=2.47" Area (sf) CN Description 159,000 95 Urban commercial, 85% imp, HSG D 47,303 80 >75% Grass cover, Good, HSG D 206,303 Weighted Average 71,153 79 34.49% Pervious Area 135,150 98 65.51% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 10.0 Direct Entry, Subcatchment 45S: Central - West Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)13 12 11 10 9 8 7 6 5 4 3 2 1 0 MSE 24-hr 3 1-Year A Rainfall=2.47" Runoff Area=206,303 sf Runoff Volume=0.667 af Runoff Depth=1.69" Tc=10.0 min CN=WQ 11.85 cfs MSE 24-hr 3 1-Year A Rainfall=2.47"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 39HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 46S: South Townhomes Runoff = 3.36 cfs @ 12.21 hrs, Volume= 0.211 af, Depth= 1.14" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MSE 24-hr 3 1-Year A Rainfall=2.47" Area (sf) CN Description 19,025 98 Paved parking, HSG D 78,057 80 >75% Grass cover, Good, HSG D 97,082 Weighted Average 78,057 80 80.40% Pervious Area 19,025 98 19.60% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 11.7 92 0.0320 0.13 Sheet Flow, Grass: Dense n= 0.240 P2= 2.87" 0.9 609 0.5200 10.82 Shallow Concentrated Flow, Grassed Waterway Kv= 15.0 fps 12.6 701 Total Subcatchment 46S: South Townhomes Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)3 2 1 0 MSE 24-hr 3 1-Year A Rainfall=2.47" Runoff Area=97,082 sf Runoff Volume=0.211 af Runoff Depth=1.14" Flow Length=701' Tc=12.6 min CN=WQ 3.36 cfs MSE 24-hr 3 1-Year A Rainfall=2.47"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 40HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 47S: Bluff Creek Blvd - West Runoff = 7.74 cfs @ 12.12 hrs, Volume= 0.378 af, Depth= 1.98" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MSE 24-hr 3 1-Year A Rainfall=2.47" Area (ac) CN Description 0.439 80 >75% Grass cover, Good, HSG D 1.856 98 Paved roads w/curbs & sewers, HSG D 2.295 Weighted Average 0.439 80 19.13% Pervious Area 1.856 98 80.87% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 5.0 Direct Entry, Subcatchment 47S: Bluff Creek Blvd - West Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)8 7 6 5 4 3 2 1 0 MSE 24-hr 3 1-Year A Rainfall=2.47" Runoff Area=2.295 ac Runoff Volume=0.378 af Runoff Depth=1.98" Tc=5.0 min CN=WQ 7.74 cfs MSE 24-hr 3 1-Year A Rainfall=2.47"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 41HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 48.1S: Direct to 48P (2) Runoff = 5.44 cfs @ 12.17 hrs, Volume= 0.323 af, Depth= 1.80" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MSE 24-hr 3 1-Year A Rainfall=2.47" Area (sf) CN Description 29,956 80 >75% Grass cover, Good, HSG D 63,765 98 Paved parking, HSG D 93,721 Weighted Average 29,956 80 31.96% Pervious Area 63,765 98 68.04% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 10.0 Direct Entry, Subcatchment 48.1S: Direct to 48P (2) Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)6 5 4 3 2 1 0 MSE 24-hr 3 1-Year A Rainfall=2.47" Runoff Area=93,721 sf Runoff Volume=0.323 af Runoff Depth=1.80" Tc=10.0 min CN=WQ 5.44 cfs MSE 24-hr 3 1-Year A Rainfall=2.47"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 42HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 48S: Bluff Creek Blvd - East Runoff = 11.64 cfs @ 12.12 hrs, Volume= 0.569 af, Depth= 1.98" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MSE 24-hr 3 1-Year A Rainfall=2.47" Area (ac) CN Description 0.642 80 >75% Grass cover, Good, HSG D 2.799 98 Paved roads w/curbs & sewers, HSG D 3.441 Weighted Average 0.642 80 18.66% Pervious Area 2.799 98 81.34% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 5.0 Direct Entry, Subcatchment 48S: Bluff Creek Blvd - East Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)13 12 11 10 9 8 7 6 5 4 3 2 1 0 MSE 24-hr 3 1-Year A Rainfall=2.47" Runoff Area=3.441 ac Runoff Volume=0.569 af Runoff Depth=1.98" Tc=5.0 min CN=WQ 11.64 cfs MSE 24-hr 3 1-Year A Rainfall=2.47"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 43HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Reach 20R: Northwest Drainage [40] Hint: Not Described (Outflow=Inflow) Inflow Area = 15.265 ac, 37.82% Impervious, Inflow Depth = 0.76" for 1-Year A event Inflow = 3.07 cfs @ 13.14 hrs, Volume= 0.973 af Outflow = 3.07 cfs @ 13.14 hrs, Volume= 0.973 af, Atten= 0%, Lag= 0.0 min Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Reach 20R: Northwest Drainage Inflow Outflow Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)3 2 1 0 Inflow Area=15.265 ac 3.07 cfs 3.07 cfs MSE 24-hr 3 1-Year A Rainfall=2.47"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 44HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Reach 21R: Lower Wetland 6 Inflow Area = 15.265 ac, 37.82% Impervious, Inflow Depth = 0.76" for 1-Year A event Inflow = 3.08 cfs @ 13.05 hrs, Volume= 0.973 af Outflow = 3.07 cfs @ 13.14 hrs, Volume= 0.973 af, Atten= 0%, Lag= 5.5 min Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Max. Velocity= 0.68 fps, Min. Travel Time= 4.6 min Avg. Velocity = 0.33 fps, Avg. Travel Time= 9.4 min Peak Storage= 847 cf @ 13.14 hrs Average Depth at Peak Storage= 0.35' Bank-Full Depth= 5.99' Flow Area= 570.1 sf, Capacity= 3,072.14 cfs Custom cross-section, Length= 187.0' Slope= 0.0053 '/' (102 Elevation Intervals) Constant n= 0.050 Scattered brush, heavy weeds Inlet Invert= 885.00', Outlet Invert= 884.00' ‡ Offset Elevation Chan.Depth (feet) (feet) (feet) 0.00 890.40 0.00 43.10 886.55 3.85 85.60 884.41 5.99 126.20 885.14 5.26 145.10 890.40 0.00 Depth End Area Perim. Storage Discharge (feet) (sq-ft) (feet) (cubic-feet) (cfs) 0.00 0.0 0.0 0 0.00 0.73 20.1 55.1 3,761 22.32 2.14 121.1 88.4 22,648 324.64 5.99 570.1 146.1 106,618 3,072.14 MSE 24-hr 3 1-Year A Rainfall=2.47"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 45HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Reach 21R: Lower Wetland 6 Inflow Outflow Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)3 2 1 0 Inflow Area=15.265 ac Avg. Flow Depth=0.35' Max Vel=0.68 fps n=0.050 L=187.0' S=0.0053 '/' Capacity=3,072.14 cfs 3.08 cfs 3.07 cfs MSE 24-hr 3 1-Year A Rainfall=2.47"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 46HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Reach 30R: SW Drainage [40] Hint: Not Described (Outflow=Inflow) Inflow Area = 12.794 ac, 6.62% Impervious, Inflow Depth = 0.62" for 1-Year A event Inflow = 2.51 cfs @ 12.18 hrs, Volume= 0.666 af Outflow = 2.51 cfs @ 12.18 hrs, Volume= 0.666 af, Atten= 0%, Lag= 0.0 min Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Reach 30R: SW Drainage Inflow Outflow Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)2 1 0 Inflow Area=12.794 ac 2.51 cfs 2.51 cfs MSE 24-hr 3 1-Year A Rainfall=2.47"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 47HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Reach 35R: Direct Runoff [40] Hint: Not Described (Outflow=Inflow) Inflow Area = 4.375 ac, 2.67% Impervious, Inflow Depth = 0.22" for 1-Year A event Inflow = 0.98 cfs @ 12.18 hrs, Volume= 0.080 af Outflow = 0.98 cfs @ 12.18 hrs, Volume= 0.080 af, Atten= 0%, Lag= 0.0 min Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Reach 35R: Direct Runoff Inflow Outflow Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)1 0 Inflow Area=4.375 ac 0.98 cfs 0.98 cfs MSE 24-hr 3 1-Year A Rainfall=2.47"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 48HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Reach 40R: South Drainage [40] Hint: Not Described (Outflow=Inflow) Inflow Area = 51.070 ac, 48.50% Impervious, Inflow Depth = 0.40" for 1-Year A event Inflow = 8.85 cfs @ 12.28 hrs, Volume= 1.707 af Outflow = 8.85 cfs @ 12.28 hrs, Volume= 1.707 af, Atten= 0%, Lag= 0.0 min Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Reach 40R: South Drainage Inflow Outflow Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)9 8 7 6 5 4 3 2 1 0 Inflow Area=51.070 ac 8.85 cfs 8.85 cfs MSE 24-hr 3 1-Year A Rainfall=2.47"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 49HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Reach 42.1R: South [40] Hint: Not Described (Outflow=Inflow) Inflow Area = 9.843 ac, 71.43% Impervious, Inflow Depth = 0.63" for 1-Year A event Inflow = 5.37 cfs @ 12.28 hrs, Volume= 0.520 af Outflow = 5.37 cfs @ 12.28 hrs, Volume= 0.520 af, Atten= 0%, Lag= 0.0 min Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Reach 42.1R: South Inflow Outflow Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)6 5 4 3 2 1 0 Inflow Area=9.843 ac 5.37 cfs 5.37 cfs MSE 24-hr 3 1-Year A Rainfall=2.47"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 50HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Reach 42.2R: Southeast [40] Hint: Not Described (Outflow=Inflow) Inflow Area = 11.515 ac, 75.54% Impervious, Inflow Depth = 0.50" for 1-Year A event Inflow = 1.12 cfs @ 13.43 hrs, Volume= 0.483 af Outflow = 1.12 cfs @ 13.43 hrs, Volume= 0.483 af, Atten= 0%, Lag= 0.0 min Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Reach 42.2R: Southeast Inflow Outflow Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)1 0 Inflow Area=11.515 ac 1.12 cfs 1.12 cfs MSE 24-hr 3 1-Year A Rainfall=2.47"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 51HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Reach 44R: Wetland 4 Channel [40] Hint: Not Described (Outflow=Inflow) Inflow Area = 26.490 ac, 34.12% Impervious, Inflow Depth = 0.31" for 1-Year A event Inflow = 3.11 cfs @ 12.27 hrs, Volume= 0.684 af Outflow = 3.11 cfs @ 12.27 hrs, Volume= 0.684 af, Atten= 0%, Lag= 0.0 min Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Reach 44R: Wetland 4 Channel Inflow Outflow Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)3 2 1 0 Inflow Area=26.490 ac 3.11 cfs 3.11 cfs MSE 24-hr 3 1-Year A Rainfall=2.47"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 52HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Reach 48R: Development to Wetland 4 [40] Hint: Not Described (Outflow=Inflow) Inflow Area = 14.497 ac, 62.34% Impervious, Inflow Depth = 0.50" for 1-Year A event Inflow = 3.13 cfs @ 12.26 hrs, Volume= 0.608 af Outflow = 3.13 cfs @ 12.26 hrs, Volume= 0.608 af, Atten= 0%, Lag= 0.0 min Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Reach 48R: Development to Wetland 4 Inflow Outflow Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)3 2 1 0 Inflow Area=14.497 ac 3.13 cfs 3.13 cfs MSE 24-hr 3 1-Year A Rainfall=2.47"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 53HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Reach 50R: Bluff Creek Drainage [40] Hint: Not Described (Outflow=Inflow) Inflow Area = 79.129 ac, 39.67% Impervious, Inflow Depth = 0.51" for 1-Year A event Inflow = 12.25 cfs @ 12.22 hrs, Volume= 3.346 af Outflow = 12.25 cfs @ 12.22 hrs, Volume= 3.346 af, Atten= 0%, Lag= 0.0 min Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Reach 50R: Bluff Creek Drainage Inflow Outflow Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)13 12 11 10 9 8 7 6 5 4 3 2 1 0 Inflow Area=79.129 ac 12.25 cfs 12.25 cfs MSE 24-hr 3 1-Year A Rainfall=2.47"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 54HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Pond 21P: North Basin Inflow Area = 14.040 ac, 40.93% Impervious, Inflow Depth = 1.02" for 1-Year A event Inflow = 12.96 cfs @ 12.21 hrs, Volume= 1.196 af Outflow = 2.96 cfs @ 13.13 hrs, Volume= 1.196 af, Atten= 77%, Lag= 55.4 min Discarded = 0.05 cfs @ 9.99 hrs, Volume= 0.313 af Primary = 2.91 cfs @ 13.13 hrs, Volume= 0.883 af Secondary = 0.00 cfs @ 0.00 hrs, Volume= 0.000 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 891.59' @ 13.13 hrs Surf.Area= 37,120 sf Storage= 21,491 cf Plug-Flow detention time= 548.8 min calculated for 1.196 af (100% of inflow) Center-of-Mass det. time= 548.8 min ( 1,388.0 - 839.2 ) Volume Invert Avail.Storage Storage Description #1 889.70' 25,434 cf Sand Section (Prismatic) Listed below (Recalc) 85,376 cf Overall - 594 cf Embedded = 84,782 cf x 30.0% Voids #2 892.00' 5,568 cf Topsoil (Prismatic) Listed below (Recalc) 18,560 cf Overall x 30.0% Voids #3 892.50' 150,182 cf Open Pond (Prismatic) Listed below (Recalc) #4 889.70' 594 cf 8.0" Round Pipe Storage Inside #1 L= 1,703.0' 181,778 cf Total Available Storage Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 889.70 37,120 0 0 892.00 37,120 85,376 85,376 Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 892.00 37,120 0 0 892.50 37,120 18,560 18,560 Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 892.50 37,120 0 0 893.00 38,678 18,950 18,950 894.00 41,838 40,258 59,208 895.00 45,055 43,447 102,654 896.00 50,000 47,528 150,182 Device Routing Invert Outlet Devices #1 Primary 889.70'18.0" Round Culvert L= 45.0' RCP, sq.cut end projecting, Ke= 0.500 Inlet / Outlet Invert= 889.70' / 889.38' S= 0.0071 '/' Cc= 0.900 n= 0.011 Concrete pipe, straight & clean, Flow Area= 1.77 sf #2 Device 1 890.50'12.0" Vert. Orifice/Grate C= 0.600 #3 Device 1 892.74'12.0" Vert. Orifice/Grate C= 0.600 #4 Discarded 889.70'0.060 in/hr Exfiltration over Surface area Phase-In= 0.01' MSE 24-hr 3 1-Year A Rainfall=2.47"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 55HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC #5 Secondary 894.00'20.0' long x 5.0' breadth Broad-Crested Rectangular Weir Head (feet) 0.20 0.40 0.60 0.80 1.00 1.20 1.40 1.60 1.80 2.00 2.50 3.00 3.50 4.00 4.50 5.00 5.50 Coef. (English) 2.34 2.50 2.70 2.68 2.68 2.66 2.65 2.65 2.65 2.65 2.67 2.66 2.68 2.70 2.74 2.79 2.88 Discarded OutFlow Max=0.05 cfs @ 9.99 hrs HW=889.71' (Free Discharge) 4=Exfiltration (Exfiltration Controls 0.05 cfs) Primary OutFlow Max=2.91 cfs @ 13.13 hrs HW=891.59' TW=885.35' (Dynamic Tailwater) 1=Culvert (Passes 2.91 cfs of 8.77 cfs potential flow) 2=Orifice/Grate (Orifice Controls 2.91 cfs @ 3.71 fps) 3=Orifice/Grate ( Controls 0.00 cfs) Secondary OutFlow Max=0.00 cfs @ 0.00 hrs HW=889.70' TW=885.00' (Dynamic Tailwater) 5=Broad-Crested Rectangular Weir ( Controls 0.00 cfs) Pond 21P: North Basin Inflow Outflow Discarded Primary Secondary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 Inflow Area=14.040 ac Peak Elev=891.59' Storage=21,491 cf 12.96 cfs 2.96 cfs 0.05 cfs 2.91 cfs 0.00 cfs MSE 24-hr 3 1-Year A Rainfall=2.47"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 56HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Pond 24P: Northwest Basin Inflow Area = 1.357 ac, 69.40% Impervious, Inflow Depth = 1.82" for 1-Year A event Inflow = 3.46 cfs @ 12.17 hrs, Volume= 0.206 af Outflow = 0.88 cfs @ 12.46 hrs, Volume= 0.206 af, Atten= 75%, Lag= 17.5 min Discarded = 0.02 cfs @ 6.50 hrs, Volume= 0.090 af Primary = 0.86 cfs @ 12.46 hrs, Volume= 0.116 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 914.20' @ 12.46 hrs Surf.Area= 11,000 sf Storage= 4,729 cf Plug-Flow detention time= 781.8 min calculated for 0.206 af (100% of inflow) Center-of-Mass det. time= 781.8 min ( 1,551.9 - 770.0 ) Volume Invert Avail.Storage Storage Description #1 912.80' 7,537 cf Custom Stage Data (Prismatic) Listed below (Recalc) 25,300 cf Overall - 176 cf Embedded = 25,124 cf x 30.0% Voids #2 915.10' 8,729 cf Custom Stage Data (Prismatic) Listed below (Recalc) 22,000 cf Overall - 176 cf Embedded = 21,824 cf x 40.0% Voids #3 912.80' 176 cf 8.0" Round Pipe Storage Inside #1 L= 505.0' #4 915.10' 176 cf 8.0" Round Pipe Storage Inside #2 L= 505.0' 16,619 cf Total Available Storage Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 912.80 11,000 0 0 915.10 11,000 25,300 25,300 Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 915.10 11,000 0 0 917.10 11,000 22,000 22,000 Device Routing Invert Outlet Devices #1 Primary 912.80'12.0" Round Culvert L= 100.0' RCP, sq.cut end projecting, Ke= 0.500 Inlet / Outlet Invert= 912.80' / 912.10' S= 0.0070 '/' Cc= 0.900 n= 0.011 Concrete pipe, straight & clean, Flow Area= 0.79 sf #2 Device 1 913.60'8.0" Vert. Orifice/Grate C= 0.600 #3 Device 1 915.77'8.0" Vert. Orifice/Grate C= 0.600 #4 Discarded 912.80'0.060 in/hr Exfiltration over Surface area Phase-In= 0.01' Discarded OutFlow Max=0.02 cfs @ 6.50 hrs HW=912.81' (Free Discharge) 4=Exfiltration (Exfiltration Controls 0.02 cfs) Primary OutFlow Max=0.86 cfs @ 12.46 hrs HW=914.20' TW=895.30' (Dynamic Tailwater) 1=Culvert (Passes 0.86 cfs of 3.41 cfs potential flow) 2=Orifice/Grate (Orifice Controls 0.86 cfs @ 2.63 fps) 3=Orifice/Grate ( Controls 0.00 cfs) MSE 24-hr 3 1-Year A Rainfall=2.47"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 57HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Pond 24P: Northwest Basin Inflow Outflow Discarded Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)3 2 1 0 Inflow Area=1.357 ac Peak Elev=914.20' Storage=4,729 cf 3.46 cfs 0.88 cfs 0.02 cfs 0.86 cfs MSE 24-hr 3 1-Year A Rainfall=2.47"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 58HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Pond 25P: West - North Inflow Area = 4.651 ac, 45.17% Impervious, Inflow Depth = 1.49" for 1-Year A event Inflow = 9.87 cfs @ 12.17 hrs, Volume= 0.577 af Outflow = 5.59 cfs @ 12.29 hrs, Volume= 0.577 af, Atten= 43%, Lag= 7.2 min Discarded = 0.02 cfs @ 5.58 hrs, Volume= 0.130 af Primary = 5.57 cfs @ 12.29 hrs, Volume= 0.446 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 914.62' @ 12.29 hrs Surf.Area= 15,560 sf Storage= 9,455 cf Plug-Flow detention time= 421.8 min calculated for 0.577 af (100% of inflow) Center-of-Mass det. time= 421.9 min ( 1,203.8 - 781.9 ) Volume Invert Avail.Storage Storage Description #1 912.63' 10,662 cf Custom Stage Data (Prismatic) Listed below (Recalc) 35,788 cf Overall - 249 cf Embedded = 35,539 cf x 30.0% Voids #2 914.93' 12,348 cf Custom Stage Data (Prismatic) Listed below (Recalc) 31,120 cf Overall - 249 cf Embedded = 30,871 cf x 40.0% Voids #3 916.93' 9,772 cf Custom Stage Data (Prismatic) Listed below (Recalc) 24,429 cf Overall x 40.0% Voids #4 912.63' 249 cf 8.0" Round Pipe Storage Inside #1 L= 714.0' #5 914.93' 249 cf 8.0" Round Pipe Storage Inside #2 L= 714.0' 33,280 cf Total Available Storage Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 912.63 15,560 0 0 914.93 15,560 35,788 35,788 Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 914.93 15,560 0 0 916.93 15,560 31,120 31,120 Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 916.93 15,560 0 0 918.50 15,560 24,429 24,429 Device Routing Invert Outlet Devices #1 Primary 912.63'18.0" Round Culvert L= 153.0' RCP, sq.cut end projecting, Ke= 0.500 Inlet / Outlet Invert= 912.63' / 911.10' S= 0.0100 '/' Cc= 0.900 n= 0.011 Concrete pipe, straight & clean, Flow Area= 1.77 sf #2 Device 1 913.43'18.0" Vert. Orifice/Grate C= 0.600 #3 Device 1 915.67'18.0" Vert. Orifice/Grate C= 0.600 #4 Discarded 912.63'0.060 in/hr Exfiltration over Surface area Phase-In= 0.01' MSE 24-hr 3 1-Year A Rainfall=2.47"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 59HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Discarded OutFlow Max=0.02 cfs @ 5.58 hrs HW=912.64' (Free Discharge) 4=Exfiltration (Exfiltration Controls 0.02 cfs) Primary OutFlow Max=5.57 cfs @ 12.29 hrs HW=914.62' TW=895.79' (Dynamic Tailwater) 1=Culvert (Passes 5.57 cfs of 9.47 cfs potential flow) 2=Orifice/Grate (Orifice Controls 5.57 cfs @ 3.71 fps) 3=Orifice/Grate ( Controls 0.00 cfs) Pond 25P: West - North Inflow Outflow Discarded Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)11 10 9 8 7 6 5 4 3 2 1 0 Inflow Area=4.651 ac Peak Elev=914.62' Storage=9,455 cf 9.87 cfs 5.59 cfs 0.02 cfs 5.57 cfs MSE 24-hr 3 1-Year A Rainfall=2.47"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 60HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Pond 28P: Avienda Pkwy - NW Basin Inflow Area = 2.793 ac, 66.00% Impervious, Inflow Depth = 1.77" for 1-Year A event Inflow = 5.89 cfs @ 12.23 hrs, Volume= 0.413 af Outflow = 0.51 cfs @ 13.31 hrs, Volume= 0.413 af, Atten= 91%, Lag= 65.0 min Discarded = 0.04 cfs @ 7.61 hrs, Volume= 0.257 af Primary = 0.47 cfs @ 13.31 hrs, Volume= 0.156 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 910.93' @ 13.31 hrs Surf.Area= 30,906 sf Storage= 11,477 cf Plug-Flow detention time= 1,149.5 min calculated for 0.413 af (100% of inflow) Center-of-Mass det. time= 1,149.6 min ( 1,925.7 - 776.1 ) Volume Invert Avail.Storage Storage Description #1 909.73' 21,177 cf Custom Stage Data (Prismatic) Listed below (Recalc) 71,084 cf Overall - 495 cf Embedded = 70,589 cf x 30.0% Voids #2 912.03' 24,527 cf Custom Stage Data (Prismatic) Listed below (Recalc) 61,812 cf Overall - 495 cf Embedded = 61,317 cf x 40.0% Voids #3 909.73' 495 cf 8.0" Round Pipe Storage Inside #1 L= 1,418.0' #4 912.03' 495 cf 8.0" Round Pipe Storage Inside #2 L= 1,418.0' 46,693 cf Total Available Storage Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 909.73 30,906 0 0 912.03 30,906 71,084 71,084 Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 912.03 30,906 0 0 914.03 30,906 61,812 61,812 Device Routing Invert Outlet Devices #1 Primary 909.73'12.0" Round Culvert L= 148.0' RCP, sq.cut end projecting, Ke= 0.500 Inlet / Outlet Invert= 909.73' / 908.25' S= 0.0100 '/' Cc= 0.900 n= 0.011 Concrete pipe, straight & clean, Flow Area= 0.79 sf #2 Device 1 910.53'8.0" Vert. Orifice/Grate C= 0.600 #3 Device 1 912.77'8.0" Vert. Orifice/Grate C= 0.600 #4 Discarded 909.73'0.060 in/hr Exfiltration over Surface area Phase-In= 0.01' Discarded OutFlow Max=0.04 cfs @ 7.61 hrs HW=909.74' (Free Discharge) 4=Exfiltration (Exfiltration Controls 0.04 cfs) Primary OutFlow Max=0.47 cfs @ 13.31 hrs HW=910.93' TW=894.87' (Dynamic Tailwater) 1=Culvert (Passes 0.47 cfs of 3.17 cfs potential flow) 2=Orifice/Grate (Orifice Controls 0.47 cfs @ 2.15 fps) 3=Orifice/Grate ( Controls 0.00 cfs) MSE 24-hr 3 1-Year A Rainfall=2.47"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 61HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Pond 28P: Avienda Pkwy - NW Basin Inflow Outflow Discarded Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)6 5 4 3 2 1 0 Inflow Area=2.793 ac Peak Elev=910.93' Storage=11,477 cf 5.89 cfs 0.51 cfs 0.04 cfs0.47 cfs MSE 24-hr 3 1-Year A Rainfall=2.47"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 62HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Pond 31P: West South Basin Inflow Area = 0.754 ac, 22.84% Impervious, Inflow Depth = 1.18" for 1-Year A event Inflow = 1.09 cfs @ 12.23 hrs, Volume= 0.074 af Outflow = 0.78 cfs @ 12.35 hrs, Volume= 0.074 af, Atten= 28%, Lag= 7.2 min Discarded = 0.00 cfs @ 7.08 hrs, Volume= 0.020 af Primary = 0.78 cfs @ 12.35 hrs, Volume= 0.054 af Secondary = 0.00 cfs @ 0.00 hrs, Volume= 0.000 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 922.28' @ 12.35 hrs Surf.Area= 2,441 sf Storage= 1,019 cf Plug-Flow detention time= 465.2 min calculated for 0.074 af (100% of inflow) Center-of-Mass det. time= 465.2 min ( 1,268.4 - 803.2 ) Volume Invert Avail.Storage Storage Description #1 920.93' 1,671 cf Sand Setion (Prismatic) Listed below (Recalc) 5,614 cf Overall - 44 cf Embedded = 5,571 cf x 30.0% Voids #2 923.23' 366 cf Topsoil (Prismatic) Listed below (Recalc) 1,221 cf Overall x 30.0% Voids #3 923.73' 11,497 cf Open pond (Prismatic) Listed below (Recalc) #4 920.93' 44 cf 8.0" Round Pipe Storage Inside #1 L= 125.0' 13,578 cf Total Available Storage Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 920.93 2,441 0 0 923.23 2,441 5,614 5,614 Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 923.23 2,441 0 0 923.73 2,441 1,221 1,221 Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 923.73 2,441 0 0 926.60 4,878 10,503 10,503 926.70 15,000 994 11,497 Device Routing Invert Outlet Devices #1 Primary 920.93'12.0" Round Culvert L= 46.0' RCP, sq.cut end projecting, Ke= 0.500 Inlet / Outlet Invert= 920.93' / 920.80' S= 0.0028 '/' Cc= 0.900 n= 0.011 Concrete pipe, straight & clean, Flow Area= 0.79 sf #2 Device 1 921.73'8.0" Vert. Orifice/Grate C= 0.600 #3 Device 1 923.84'8.0" Vert. Orifice/Grate C= 0.600 #4 Secondary 925.60'20.0' long x 5.0' breadth Broad-Crested Rectangular Weir Head (feet) 0.20 0.40 0.60 0.80 1.00 1.20 1.40 1.60 1.80 2.00 2.50 3.00 3.50 4.00 4.50 5.00 5.50 MSE 24-hr 3 1-Year A Rainfall=2.47"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 63HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Coef. (English) 2.34 2.50 2.70 2.68 2.68 2.66 2.65 2.65 2.65 2.65 2.67 2.66 2.68 2.70 2.74 2.79 2.88 #5 Discarded 920.93'0.060 in/hr Exfiltration over Horizontal area Phase-In= 0.01' Discarded OutFlow Max=0.00 cfs @ 7.08 hrs HW=920.94' (Free Discharge) 5=Exfiltration (Exfiltration Controls 0.00 cfs) Primary OutFlow Max=0.78 cfs @ 12.35 hrs HW=922.28' TW=921.08' (Dynamic Tailwater) 1=Culvert (Passes 0.78 cfs of 2.74 cfs potential flow) 2=Orifice/Grate (Orifice Controls 0.78 cfs @ 2.52 fps) 3=Orifice/Grate ( Controls 0.00 cfs) Secondary OutFlow Max=0.00 cfs @ 0.00 hrs HW=920.93' TW=920.58' (Dynamic Tailwater) 4=Broad-Crested Rectangular Weir ( Controls 0.00 cfs) Pond 31P: West South Basin Inflow Outflow Discarded Primary Secondary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)1 0 Inflow Area=0.754 ac Peak Elev=922.28' Storage=1,019 cf 1.09 cfs 0.78 cfs 0.00 cfs 0.78 cfs 0.00 cfs MSE 24-hr 3 1-Year A Rainfall=2.47"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 64HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Pond 32P: Drop MH [57] Hint: Peaked at 895.79' (Flood elevation advised) Inflow Area = 4.651 ac, 45.17% Impervious, Inflow Depth = 1.15" for 1-Year A event Inflow = 5.57 cfs @ 12.29 hrs, Volume= 0.446 af Outflow = 5.57 cfs @ 12.29 hrs, Volume= 0.446 af, Atten= 0%, Lag= 0.0 min Primary = 5.57 cfs @ 12.29 hrs, Volume= 0.446 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 895.79' @ 12.29 hrs Device Routing Invert Outlet Devices #1 Primary 894.50'18.0" Round Culvert L= 90.0' RCP, sq.cut end projecting, Ke= 0.500 Inlet / Outlet Invert= 894.50' / 894.00' S= 0.0056 '/' Cc= 0.900 n= 0.011 Concrete pipe, straight & clean, Flow Area= 1.77 sf Primary OutFlow Max=5.57 cfs @ 12.29 hrs HW=895.79' TW=890.71' (Dynamic Tailwater) 1=Culvert (Barrel Controls 5.57 cfs @ 4.62 fps) Pond 32P: Drop MH Inflow Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)6 5 4 3 2 1 0 Inflow Area=4.651 ac Peak Elev=895.79' 18.0" Round Culvert n=0.011 L=90.0' S=0.0056 '/' 5.57 cfs 5.57 cfs MSE 24-hr 3 1-Year A Rainfall=2.47"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 65HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Pond 33P: Wetland 3 Inflow Area = 5.208 ac, 12.12% Impervious, Inflow Depth = 1.17" for 1-Year A event Inflow = 7.89 cfs @ 12.16 hrs, Volume= 0.506 af Outflow = 1.14 cfs @ 12.83 hrs, Volume= 0.506 af, Atten= 86%, Lag= 39.9 min Primary = 1.14 cfs @ 12.83 hrs, Volume= 0.506 af Secondary = 0.00 cfs @ 0.00 hrs, Volume= 0.000 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 921.14' @ 12.83 hrs Surf.Area= 35,170 sf Storage= 10,731 cf Plug-Flow detention time= 150.6 min calculated for 0.506 af (100% of inflow) Center-of-Mass det. time= 153.6 min ( 954.5 - 800.9 ) Volume Invert Avail.Storage Storage Description #1 920.58' 140,121 cf Custom Stage Data (Prismatic) Listed below (Recalc) Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 920.58 100 0 0 921.00 30,000 6,321 6,321 922.00 68,200 49,100 55,421 923.00 101,200 84,700 140,121 Device Routing Invert Outlet Devices #1 Primary 920.58'12.0" Round Culvert L= 455.0' RCP, end-section conforming to fill, Ke= 0.500 Inlet / Outlet Invert= 920.58' / 911.02' S= 0.0210 '/' Cc= 0.900 n= 0.013 Concrete pipe, straight & clean, Flow Area= 0.79 sf #2 Secondary 921.90'Asymmetrical Weir, C= 3.27 Offset (feet) 0.00 19.00 40.00 50.00 76.00 103.00 Height (feet) 1.50 0.50 0.00 0.00 0.50 1.50 Primary OutFlow Max=1.14 cfs @ 12.83 hrs HW=921.14' TW=907.55' (Dynamic Tailwater) 1=Culvert (Inlet Controls 1.14 cfs @ 2.54 fps) Secondary OutFlow Max=0.00 cfs @ 0.00 hrs HW=920.58' TW=0.00' (Dynamic Tailwater) 2=Asymmetrical Weir ( Controls 0.00 cfs) MSE 24-hr 3 1-Year A Rainfall=2.47"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 66HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Pond 33P: Wetland 3 Inflow Outflow Primary Secondary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)8 7 6 5 4 3 2 1 0 Inflow Area=5.208 ac Peak Elev=921.14' Storage=10,731 cf 7.89 cfs 1.14 cfs 1.14 cfs 0.00 cfs MSE 24-hr 3 1-Year A Rainfall=2.47"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 67HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Pond 34P: West - South (existing) Inflow Area = 8.382 ac, 8.27% Impervious, Inflow Depth = 0.83" for 1-Year A event Inflow = 1.83 cfs @ 12.13 hrs, Volume= 0.579 af Outflow = 1.45 cfs @ 12.19 hrs, Volume= 0.579 af, Atten= 21%, Lag= 3.2 min Primary = 1.45 cfs @ 12.19 hrs, Volume= 0.579 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 907.58' @ 12.19 hrs Surf.Area= 0.032 ac Storage= 0.009 af Plug-Flow detention time= (not calculated: outflow precedes inflow) Center-of-Mass det. time= 4.8 min ( 945.6 - 940.8 ) Volume Invert Avail.Storage Storage Description #1 907.00' 1.603 af Custom Stage Data (Prismatic) Listed below (Recalc) Elevation Surf.Area Inc.Store Cum.Store (feet) (acres) (acre-feet) (acre-feet) 907.00 0.000 0.000 0.000 908.00 0.055 0.028 0.028 909.00 0.208 0.131 0.159 910.00 0.413 0.310 0.469 911.00 0.573 0.493 0.962 912.00 0.709 0.641 1.603 Device Routing Invert Outlet Devices #1 Primary 907.00'15.0" Round Culvert L= 48.8' RCP, end-section conforming to fill, Ke= 0.500 Inlet / Outlet Invert= 907.00' / 906.00' S= 0.0205 '/' Cc= 0.900 n= 0.013 Concrete pipe, straight & clean, Flow Area= 1.23 sf #2 Primary 911.22'Asymmetrical Weir, C= 3.27 Offset (feet) 0.00 12.00 18.00 28.00 49.00 88.00 Height (feet) 1.35 0.02 0.00 0.15 0.70 1.35 Primary OutFlow Max=1.44 cfs @ 12.19 hrs HW=907.58' TW=0.00' (Dynamic Tailwater) 1=Culvert (Inlet Controls 1.44 cfs @ 2.59 fps) 2=Asymmetrical Weir ( Controls 0.00 cfs) MSE 24-hr 3 1-Year A Rainfall=2.47"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 68HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Pond 34P: West - South (existing) Inflow Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)2 1 0 Inflow Area=8.382 ac Peak Elev=907.58' Storage=0.009 af 1.83 cfs 1.45 cfs MSE 24-hr 3 1-Year A Rainfall=2.47"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 69HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Pond 35P: Drop MH [57] Hint: Peaked at 895.30' (Flood elevation advised) Inflow Area = 1.357 ac, 69.40% Impervious, Inflow Depth = 1.02" for 1-Year A event Inflow = 0.86 cfs @ 12.46 hrs, Volume= 0.116 af Outflow = 0.86 cfs @ 12.46 hrs, Volume= 0.116 af, Atten= 0%, Lag= 0.0 min Primary = 0.86 cfs @ 12.46 hrs, Volume= 0.116 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 895.30' @ 12.46 hrs Device Routing Invert Outlet Devices #1 Primary 894.80'12.0" Round Culvert L= 150.0' RCP, sq.cut end projecting, Ke= 0.500 Inlet / Outlet Invert= 894.80' / 894.00' S= 0.0053 '/' Cc= 0.900 n= 0.011 Concrete pipe, straight & clean, Flow Area= 0.79 sf Primary OutFlow Max=0.86 cfs @ 12.46 hrs HW=895.30' TW=891.18' (Dynamic Tailwater) 1=Culvert (Barrel Controls 0.86 cfs @ 3.18 fps) Pond 35P: Drop MH Inflow Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.95 0.9 0.85 0.8 0.75 0.7 0.65 0.6 0.55 0.5 0.45 0.4 0.35 0.3 0.25 0.2 0.15 0.1 0.05 0 Inflow Area=1.357 ac Peak Elev=895.30' 12.0" Round Culvert n=0.011 L=150.0' S=0.0053 '/' 0.86 cfs 0.86 cfs MSE 24-hr 3 1-Year A Rainfall=2.47"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 70HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Pond 36P: Drop MH [57] Hint: Peaked at 894.87' (Flood elevation advised) Inflow Area = 2.793 ac, 66.00% Impervious, Inflow Depth = 0.67" for 1-Year A event Inflow = 0.47 cfs @ 13.31 hrs, Volume= 0.156 af Outflow = 0.47 cfs @ 13.31 hrs, Volume= 0.156 af, Atten= 0%, Lag= 0.0 min Primary = 0.47 cfs @ 13.31 hrs, Volume= 0.156 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 894.87' @ 13.31 hrs Device Routing Invert Outlet Devices #1 Primary 894.50'12.0" Round Culvert L= 100.0' RCP, sq.cut end projecting, Ke= 0.500 Inlet / Outlet Invert= 894.50' / 894.00' S= 0.0050 '/' Cc= 0.900 n= 0.011 Concrete pipe, straight & clean, Flow Area= 0.79 sf Primary OutFlow Max=0.47 cfs @ 13.31 hrs HW=894.87' TW=891.58' (Dynamic Tailwater) 1=Culvert (Barrel Controls 0.47 cfs @ 2.63 fps) Pond 36P: Drop MH Inflow Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.5 0.45 0.4 0.35 0.3 0.25 0.2 0.15 0.1 0.05 0 Inflow Area=2.793 ac Peak Elev=894.87' 12.0" Round Culvert n=0.011 L=100.0' S=0.0050 '/' 0.47 cfs 0.47 cfs MSE 24-hr 3 1-Year A Rainfall=2.47"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 71HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Pond 40.1P: South East Inflow Area = 3.753 ac, 81.66% Impervious, Inflow Depth = 1.99" for 1-Year A event Inflow = 10.40 cfs @ 12.17 hrs, Volume= 0.622 af Outflow = 0.50 cfs @ 13.59 hrs, Volume= 0.622 af, Atten= 95%, Lag= 84.8 min Discarded = 0.07 cfs @ 7.51 hrs, Volume= 0.433 af Primary = 0.42 cfs @ 13.59 hrs, Volume= 0.189 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 894.88' @ 13.59 hrs Surf.Area= 51,048 sf Storage= 18,588 cf Plug-Flow detention time= 1,316.0 min calculated for 0.622 af (100% of inflow) Center-of-Mass det. time= 1,316.0 min ( 2,081.5 - 765.5 ) Volume Invert Avail.Storage Storage Description #1 893.70' 34,978 cf Custom Stage Data (Prismatic) Listed below (Recalc) 117,410 cf Overall - 818 cf Embedded = 116,593 cf x 30.0% Voids #2 896.00' 40,511 cf Custom Stage Data (Prismatic) Listed below (Recalc) 102,096 cf Overall - 818 cf Embedded = 101,278 cf x 40.0% Voids #3 893.70' 818 cf 8.0" Round Pipe Storage Inside #1 L= 2,343.0' #4 896.00' 818 cf 8.0" Round Pipe Storage Inside #2 L= 2,343.0' 77,125 cf Total Available Storage Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 893.70 51,048 0 0 896.00 51,048 117,410 117,410 Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 896.00 51,048 0 0 898.00 51,048 102,096 102,096 Device Routing Invert Outlet Devices #1 Primary 893.70'12.0" Round Culvert L= 260.0' RCP, sq.cut end projecting, Ke= 0.500 Inlet / Outlet Invert= 893.70' / 891.88' S= 0.0070 '/' Cc= 0.900 n= 0.011 Concrete pipe, straight & clean, Flow Area= 0.79 sf #2 Device 1 894.50'8.0" Vert. Orifice/Grate C= 0.600 #3 Device 1 896.67'12.0" Vert. Orifice/Grate C= 0.600 #4 Discarded 893.70'0.060 in/hr Exfiltration over Surface area Phase-In= 0.01' Discarded OutFlow Max=0.07 cfs @ 7.51 hrs HW=893.71' (Free Discharge) 4=Exfiltration (Exfiltration Controls 0.07 cfs) Primary OutFlow Max=0.42 cfs @ 13.59 hrs HW=894.88' TW=0.00' (Dynamic Tailwater) 1=Culvert (Passes 0.42 cfs of 3.11 cfs potential flow) 2=Orifice/Grate (Orifice Controls 0.42 cfs @ 2.09 fps) 3=Orifice/Grate ( Controls 0.00 cfs) MSE 24-hr 3 1-Year A Rainfall=2.47"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 72HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Pond 40.1P: South East Inflow Outflow Discarded Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)11 10 9 8 7 6 5 4 3 2 1 0 Inflow Area=3.753 ac Peak Elev=894.88' Storage=18,588 cf 10.40 cfs 0.50 cfs 0.07 cfs0.42 cfs MSE 24-hr 3 1-Year A Rainfall=2.47"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 73HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Pond 40.2P: South Central Inflow Area = 4.604 ac, 76.19% Impervious, Inflow Depth = 1.91" for 1-Year A event Inflow = 12.32 cfs @ 12.17 hrs, Volume= 0.734 af Outflow = 0.14 cfs @ 18.94 hrs, Volume= 0.734 af, Atten= 99%, Lag= 406.1 min Discarded = 0.13 cfs @ 9.22 hrs, Volume= 0.732 af Primary = 0.00 cfs @ 18.94 hrs, Volume= 0.002 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 895.83' @ 18.94 hrs Surf.Area= 94,313 sf Storage= 24,679 cf Plug-Flow detention time= 1,663.2 min calculated for 0.734 af (100% of inflow) Center-of-Mass det. time= 1,663.3 min ( 2,430.7 - 767.4 ) Volume Invert Avail.Storage Storage Description #1 895.00' 64,623 cf Custom Stage Data (Prismatic) Listed below (Recalc) 216,920 cf Overall - 1,511 cf Embedded = 215,409 cf x 30.0% Voids #2 897.30' 74,846 cf Custom Stage Data (Prismatic) Listed below (Recalc) 188,626 cf Overall - 1,511 cf Embedded = 187,115 cf x 40.0% Voids #3 895.00' 1,511 cf 8.0" Round Pipe Storage Inside #1 L= 4,328.0' #4 897.30' 1,511 cf 8.0" Round Pipe Storage Inside #2 L= 4,328.0' 142,490 cf Total Available Storage Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 895.00 94,313 0 0 897.30 94,313 216,920 216,920 Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 897.30 94,313 0 0 899.30 94,313 188,626 188,626 Device Routing Invert Outlet Devices #1 Primary 895.00'12.0" Round Culvert L= 250.0' RCP, sq.cut end projecting, Ke= 0.500 Inlet / Outlet Invert= 895.00' / 893.25' S= 0.0070 '/' Cc= 0.900 n= 0.011 Concrete pipe, straight & clean, Flow Area= 0.79 sf #2 Device 1 895.80'8.0" Vert. Orifice/Grate C= 0.600 #3 Device 1 897.97'8.0" Vert. Orifice/Grate C= 0.600 #4 Discarded 895.00'0.060 in/hr Exfiltration over Surface area Phase-In= 0.01' Discarded OutFlow Max=0.13 cfs @ 9.22 hrs HW=895.01' (Free Discharge) 4=Exfiltration (Exfiltration Controls 0.13 cfs) Primary OutFlow Max=0.00 cfs @ 18.94 hrs HW=895.83' TW=0.00' (Dynamic Tailwater) 1=Culvert (Passes 0.00 cfs of 2.18 cfs potential flow) 2=Orifice/Grate (Orifice Controls 0.00 cfs @ 0.64 fps) 3=Orifice/Grate ( Controls 0.00 cfs) MSE 24-hr 3 1-Year A Rainfall=2.47"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 74HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Pond 40.2P: South Central Inflow Outflow Discarded Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)13 12 11 10 9 8 7 6 5 4 3 2 1 0 Inflow Area=4.604 ac Peak Elev=895.83' Storage=24,679 cf 12.32 cfs 0.14 cfs 0.13 cfs 0.00 cfs MSE 24-hr 3 1-Year A Rainfall=2.47"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 75HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Pond 40.3P: South Inflow Area = 5.237 ac, 69.55% Impervious, Inflow Depth = 1.82" for 1-Year A event Inflow = 13.39 cfs @ 12.17 hrs, Volume= 0.796 af Outflow = 0.67 cfs @ 13.57 hrs, Volume= 0.796 af, Atten= 95%, Lag= 84.1 min Discarded = 0.08 cfs @ 7.48 hrs, Volume= 0.520 af Primary = 0.59 cfs @ 13.57 hrs, Volume= 0.276 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 898.76' @ 13.57 hrs Surf.Area= 60,232 sf Storage= 23,422 cf Plug-Flow detention time= 1,270.9 min calculated for 0.796 af (100% of inflow) Center-of-Mass det. time= 1,270.9 min ( 2,040.8 - 770.0 ) Volume Invert Avail.Storage Storage Description #1 897.50' 41,271 cf Custom Stage Data (Prismatic) Listed below (Recalc) 138,534 cf Overall - 965 cf Embedded = 137,569 cf x 30.0% Voids #2 899.80' 47,800 cf Custom Stage Data (Prismatic) Listed below (Recalc) 120,464 cf Overall - 965 cf Embedded = 119,499 cf x 40.0% Voids #3 897.50' 965 cf 8.0" Round Pipe Storage Inside #1 L= 2,764.0' #4 899.80' 965 cf 8.0" Round Pipe Storage Inside #2 L= 2,764.0' 91,000 cf Total Available Storage Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 897.50 60,232 0 0 899.80 60,232 138,534 138,534 Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 899.80 60,232 0 0 901.80 60,232 120,464 120,464 Device Routing Invert Outlet Devices #1 Primary 897.50'12.0" Round Culvert L= 175.0' RCP, sq.cut end projecting, Ke= 0.500 Inlet / Outlet Invert= 897.50' / 896.27' S= 0.0070 '/' Cc= 0.900 n= 0.011 Concrete pipe, straight & clean, Flow Area= 0.79 sf #2 Device 1 898.30'8.0" Vert. Orifice/Grate C= 0.600 #3 Device 1 900.47'8.0" Vert. Orifice/Grate C= 0.600 #4 Discarded 897.50'0.060 in/hr Exfiltration over Surface area Phase-In= 0.01' Discarded OutFlow Max=0.08 cfs @ 7.48 hrs HW=897.51' (Free Discharge) 4=Exfiltration (Exfiltration Controls 0.08 cfs) Primary OutFlow Max=0.59 cfs @ 13.57 hrs HW=898.76' TW=0.00' (Dynamic Tailwater) 1=Culvert (Passes 0.59 cfs of 3.29 cfs potential flow) 2=Orifice/Grate (Orifice Controls 0.59 cfs @ 2.31 fps) 3=Orifice/Grate ( Controls 0.00 cfs) MSE 24-hr 3 1-Year A Rainfall=2.47"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 76HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Pond 40.3P: South Inflow Outflow Discarded Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 Inflow Area=5.237 ac Peak Elev=898.76' Storage=23,422 cf 13.39 cfs 0.67 cfs 0.08 cfs0.59 cfs MSE 24-hr 3 1-Year A Rainfall=2.47"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 77HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Pond 41.1P: South East Inflow Area = 1.607 ac, 85.30% Impervious, Inflow Depth = 2.04" for 1-Year A event Inflow = 4.56 cfs @ 12.17 hrs, Volume= 0.273 af Outflow = 0.06 cfs @ 9.46 hrs, Volume= 0.273 af, Atten= 99%, Lag= 0.0 min Discarded = 0.06 cfs @ 9.46 hrs, Volume= 0.273 af Primary = 0.00 cfs @ 0.00 hrs, Volume= 0.000 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 888.61' @ 17.06 hrs Surf.Area= 45,024 sf Storage= 8,753 cf Plug-Flow detention time= 1,252.5 min calculated for 0.273 af (100% of inflow) Center-of-Mass det. time= 1,252.5 min ( 2,016.9 - 764.3 ) Volume Invert Avail.Storage Storage Description #1 888.00' 30,850 cf Custom Stage Data (Prismatic) Listed below (Recalc) 103,555 cf Overall - 721 cf Embedded = 102,834 cf x 30.0% Voids #2 890.30' 35,731 cf Custom Stage Data (Prismatic) Listed below (Recalc) 90,048 cf Overall - 721 cf Embedded = 89,327 cf x 40.0% Voids #3 888.00' 721 cf 8.0" Round Pipe Storage Inside #1 L= 2,066.0' #4 890.30' 721 cf 8.0" Round Pipe Storage Inside #2 L= 2,066.0' 68,023 cf Total Available Storage Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 888.00 45,024 0 0 890.30 45,024 103,555 103,555 Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 890.30 45,024 0 0 892.30 45,024 90,048 90,048 Device Routing Invert Outlet Devices #1 Primary 888.00'12.0" Round Culvert L= 70.0' RCP, sq.cut end projecting, Ke= 0.500 Inlet / Outlet Invert= 888.00' / 887.51' S= 0.0070 '/' Cc= 0.900 n= 0.011 Concrete pipe, straight & clean, Flow Area= 0.79 sf #2 Device 1 888.80'8.0" Vert. Orifice/Grate C= 0.600 #3 Device 1 890.97'8.0" Vert. Orifice/Grate C= 0.600 #4 Discarded 888.00'0.060 in/hr Exfiltration over Surface area Phase-In= 0.01' Discarded OutFlow Max=0.06 cfs @ 9.46 hrs HW=888.01' (Free Discharge) 4=Exfiltration (Exfiltration Controls 0.06 cfs) Primary OutFlow Max=0.00 cfs @ 0.00 hrs HW=888.00' TW=0.00' (Dynamic Tailwater) 1=Culvert ( Controls 0.00 cfs) 2=Orifice/Grate ( Controls 0.00 cfs) 3=Orifice/Grate ( Controls 0.00 cfs) MSE 24-hr 3 1-Year A Rainfall=2.47"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 78HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Pond 41.1P: South East Inflow Outflow Discarded Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)5 4 3 2 1 0 Inflow Area=1.607 ac Peak Elev=888.61' Storage=8,753 cf 4.56 cfs 0.06 cfs 0.06 cfs 0.00 cfs MSE 24-hr 3 1-Year A Rainfall=2.47"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 79HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Pond 41.2P: South Central Inflow Area = 3.591 ac, 80.17% Impervious, Inflow Depth = 1.97" for 1-Year A event Inflow = 9.86 cfs @ 12.17 hrs, Volume= 0.589 af Outflow = 4.91 cfs @ 12.31 hrs, Volume= 0.589 af, Atten= 50%, Lag= 8.3 min Discarded = 0.02 cfs @ 5.23 hrs, Volume= 0.141 af Primary = 4.88 cfs @ 12.31 hrs, Volume= 0.448 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 883.61' @ 12.31 hrs Surf.Area= 16,787 sf Storage= 10,803 cf Plug-Flow detention time= 452.2 min calculated for 0.589 af (100% of inflow) Center-of-Mass det. time= 452.3 min ( 1,218.3 - 766.0 ) Volume Invert Avail.Storage Storage Description #1 881.50' 11,502 cf Custom Stage Data (Prismatic) Listed below (Recalc) 38,610 cf Overall - 269 cf Embedded = 38,341 cf x 30.0% Voids #2 883.80' 13,322 cf Custom Stage Data (Prismatic) Listed below (Recalc) 33,574 cf Overall - 269 cf Embedded = 33,305 cf x 40.0% Voids #3 881.50' 269 cf 8.0" Round Pipe Storage Inside #1 L= 770.0' #4 883.80' 269 cf 8.0" Round Pipe Storage Inside #2 L= 770.0' 25,362 cf Total Available Storage Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 881.50 16,787 0 0 883.80 16,787 38,610 38,610 Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 883.80 16,787 0 0 885.80 16,787 33,574 33,574 Device Routing Invert Outlet Devices #1 Primary 881.50'18.0" Round Culvert L= 22.0' RCP, sq.cut end projecting, Ke= 0.500 Inlet / Outlet Invert= 881.50' / 881.28' S= 0.0100 '/' Cc= 0.900 n= 0.011 Concrete pipe, straight & clean, Flow Area= 1.77 sf #2 Device 1 882.30'15.0" Vert. Orifice/Grate C= 0.600 #3 Device 1 884.47'18.0" Vert. Orifice/Grate C= 0.600 #4 Discarded 881.50'0.060 in/hr Exfiltration over Surface area Phase-In= 0.01' Discarded OutFlow Max=0.02 cfs @ 5.23 hrs HW=881.51' (Free Discharge) 4=Exfiltration (Exfiltration Controls 0.02 cfs) Primary OutFlow Max=4.88 cfs @ 12.31 hrs HW=883.61' TW=0.00' (Dynamic Tailwater) 1=Culvert (Passes 4.88 cfs of 9.65 cfs potential flow) 2=Orifice/Grate (Orifice Controls 4.88 cfs @ 3.98 fps) 3=Orifice/Grate ( Controls 0.00 cfs) MSE 24-hr 3 1-Year A Rainfall=2.47"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 80HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Pond 41.2P: South Central Inflow Outflow Discarded Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)11 10 9 8 7 6 5 4 3 2 1 0 Inflow Area=3.591 ac Peak Elev=883.61' Storage=10,803 cf 9.86 cfs 4.91 cfs 0.02 cfs 4.88 cfs MSE 24-hr 3 1-Year A Rainfall=2.47"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 81HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Pond 41.3P: South West Inflow Area = 0.686 ac, 93.81% Impervious, Inflow Depth = 2.16" for 1-Year A event Inflow = 2.05 cfs @ 12.17 hrs, Volume= 0.123 af Outflow = 0.03 cfs @ 9.52 hrs, Volume= 0.123 af, Atten= 99%, Lag= 0.0 min Discarded = 0.03 cfs @ 9.52 hrs, Volume= 0.123 af Primary = 0.00 cfs @ 0.00 hrs, Volume= 0.000 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 890.31' @ 16.12 hrs Surf.Area= 22,024 sf Storage= 3,895 cf Plug-Flow detention time= 1,138.2 min calculated for 0.123 af (100% of inflow) Center-of-Mass det. time= 1,138.3 min ( 1,900.0 - 761.8 ) Volume Invert Avail.Storage Storage Description #1 889.75' 15,091 cf Custom Stage Data (Prismatic) Listed below (Recalc) 50,655 cf Overall - 353 cf Embedded = 50,303 cf x 30.0% Voids #2 892.05' 17,478 cf Custom Stage Data (Prismatic) Listed below (Recalc) 44,048 cf Overall - 353 cf Embedded = 43,695 cf x 40.0% Voids #3 889.75' 353 cf 8.0" Round Pipe Storage Inside #1 L= 1,010.0' #4 892.05' 353 cf 8.0" Round Pipe Storage Inside #2 L= 1,010.0' 33,274 cf Total Available Storage Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 889.75 22,024 0 0 892.05 22,024 50,655 50,655 Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 892.05 22,024 0 0 894.05 22,024 44,048 44,048 Device Routing Invert Outlet Devices #1 Primary 889.75'12.0" Round Culvert L= 45.0' RCP, sq.cut end projecting, Ke= 0.500 Inlet / Outlet Invert= 889.75' / 889.43' S= 0.0071 '/' Cc= 0.900 n= 0.011 Concrete pipe, straight & clean, Flow Area= 0.79 sf #2 Device 1 890.55'8.0" Vert. Orifice/Grate C= 0.600 #3 Device 1 892.72'8.0" Vert. Orifice/Grate C= 0.600 #4 Discarded 889.75'0.060 in/hr Exfiltration over Surface area Phase-In= 0.01' Discarded OutFlow Max=0.03 cfs @ 9.52 hrs HW=889.76' (Free Discharge) 4=Exfiltration (Exfiltration Controls 0.03 cfs) Primary OutFlow Max=0.00 cfs @ 0.00 hrs HW=889.75' TW=0.00' (Dynamic Tailwater) 1=Culvert ( Controls 0.00 cfs) 2=Orifice/Grate ( Controls 0.00 cfs) 3=Orifice/Grate ( Controls 0.00 cfs) MSE 24-hr 3 1-Year A Rainfall=2.47"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 82HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Pond 41.3P: South West Inflow Outflow Discarded Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)2 1 0 Inflow Area=0.686 ac Peak Elev=890.31' Storage=3,895 cf 2.05 cfs 0.03 cfs 0.03 cfs 0.00 cfs MSE 24-hr 3 1-Year A Rainfall=2.47"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 83HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Pond 44P: Wetland 4 Inflow Area = 24.628 ac, 36.70% Impervious, Inflow Depth = 0.33" for 1-Year A event Inflow = 3.13 cfs @ 12.26 hrs, Volume= 0.673 af Outflow = 3.11 cfs @ 12.27 hrs, Volume= 0.672 af, Atten= 1%, Lag= 0.9 min Primary = 3.11 cfs @ 12.27 hrs, Volume= 0.672 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 884.30' @ 12.27 hrs Surf.Area= 1,530 sf Storage= 357 cf Plug-Flow detention time= 5.8 min calculated for 0.672 af (100% of inflow) Center-of-Mass det. time= 4.9 min ( 971.7 - 966.7 ) Volume Invert Avail.Storage Storage Description #1 884.00' 37,633 cf Custom Stage Data (Prismatic) Listed below (Recalc) Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 884.00 870 0 0 884.50 1,980 713 713 885.00 3,500 1,370 2,083 886.00 7,800 5,650 7,733 887.00 14,000 10,900 18,633 888.00 24,000 19,000 37,633 Device Routing Invert Outlet Devices #1 Primary 884.03'Asymmetrical Weir, C= 3.27 Offset (feet) 0.00 51.00 133.60 176.00 217.30 239.00 Elev. (feet) 889.78 886.05 884.03 885.84 889.00 889.78 Primary OutFlow Max=3.11 cfs @ 12.27 hrs HW=884.30' TW=0.00' (Dynamic Tailwater) 1=Asymmetrical Weir (Weir Controls 3.11 cfs @ 0.68 fps) MSE 24-hr 3 1-Year A Rainfall=2.47"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 84HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Pond 44P: Wetland 4 Inflow Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)3 2 1 0 Inflow Area=24.628 ac Peak Elev=884.30' Storage=357 cf 3.13 cfs 3.11 cfs MSE 24-hr 3 1-Year A Rainfall=2.47"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 85HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Pond 46P: Triangle Basin Inflow Area = 2.229 ac, 19.60% Impervious, Inflow Depth = 1.14" for 1-Year A event Inflow = 3.36 cfs @ 12.21 hrs, Volume= 0.211 af Outflow = 3.11 cfs @ 12.25 hrs, Volume= 0.211 af, Atten= 7%, Lag= 2.6 min Discarded = 0.00 cfs @ 4.72 hrs, Volume= 0.013 af Primary = 3.11 cfs @ 12.25 hrs, Volume= 0.198 af Secondary = 0.00 cfs @ 0.00 hrs, Volume= 0.000 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 886.35' @ 12.25 hrs Surf.Area= 1,586 sf Storage= 957 cf Plug-Flow detention time= 114.2 min calculated for 0.211 af (100% of inflow) Center-of-Mass det. time= 114.2 min ( 918.6 - 804.4 ) Volume Invert Avail.Storage Storage Description #1 884.37' 1,087 cf Sand section (Prismatic) Listed below (Recalc) 3,648 cf Overall - 24 cf Embedded = 3,623 cf x 30.0% Voids #2 884.37' 24 cf 8.0" Round Pipe Storage Inside #1 L= 70.0' #3 886.67' 159 cf Topsoil (Prismatic) Listed below (Recalc) 793 cf Overall x 20.0% Voids #4 887.17' 14,801 cf Open pond (Prismatic) Listed below (Recalc) 16,071 cf Total Available Storage Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 884.37 1,586 0 0 886.67 1,586 3,648 3,648 Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 886.67 1,586 0 0 887.17 1,586 793 793 Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 887.17 1,586 0 0 890.90 6,350 14,801 14,801 Device Routing Invert Outlet Devices #1 Primary 884.37'18.0" Round Culvert L= 125.0' RCP, sq.cut end projecting, Ke= 0.500 Inlet / Outlet Invert= 884.37' / 884.00' S= 0.0030 '/' Cc= 0.900 n= 0.011 Concrete pipe, straight & clean, Flow Area= 1.77 sf #2 Device 1 885.17'12.0" Vert. Orifice/Grate C= 0.600 #3 Device 1 887.41'12.0" Vert. Orifice/Grate C= 0.600 #4 Secondary 890.75'20.0' long x 5.0' breadth Broad-Crested Rectangular Weir Head (feet) 0.20 0.40 0.60 0.80 1.00 1.20 1.40 1.60 1.80 2.00 2.50 3.00 3.50 4.00 4.50 5.00 5.50 Coef. (English) 2.34 2.50 2.70 2.68 2.68 2.66 2.65 2.65 2.65 MSE 24-hr 3 1-Year A Rainfall=2.47"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 86HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC 2.65 2.67 2.66 2.68 2.70 2.74 2.79 2.88 #5 Discarded 884.37'0.060 in/hr Exfiltration over Surface area Phase-In= 0.01' Discarded OutFlow Max=0.00 cfs @ 4.72 hrs HW=884.38' (Free Discharge) 5=Exfiltration (Exfiltration Controls 0.00 cfs) Primary OutFlow Max=3.11 cfs @ 12.25 hrs HW=886.35' TW=0.00' (Dynamic Tailwater) 1=Culvert (Passes 3.11 cfs of 7.61 cfs potential flow) 2=Orifice/Grate (Orifice Controls 3.11 cfs @ 3.96 fps) 3=Orifice/Grate ( Controls 0.00 cfs) Secondary OutFlow Max=0.00 cfs @ 0.00 hrs HW=884.37' TW=0.00' (Dynamic Tailwater) 4=Broad-Crested Rectangular Weir ( Controls 0.00 cfs) Pond 46P: Triangle Basin Inflow Outflow Discarded Primary Secondary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)3 2 1 0 Inflow Area=2.229 ac Peak Elev=886.35' Storage=957 cf 3.36 cfs 3.11 cfs 0.00 cfs 3.11 cfs 0.00 cfs MSE 24-hr 3 1-Year A Rainfall=2.47"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 87HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Pond 47P: Bluff Creek - West Basin Inflow Area = 7.031 ac, 70.52% Impervious, Inflow Depth = 1.78" for 1-Year A event Inflow = 18.36 cfs @ 12.14 hrs, Volume= 1.045 af Outflow = 0.33 cfs @ 15.26 hrs, Volume= 1.045 af, Atten= 98%, Lag= 187.3 min Discarded = 0.15 cfs @ 9.29 hrs, Volume= 0.912 af Primary = 0.18 cfs @ 15.26 hrs, Volume= 0.134 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 909.23' @ 15.26 hrs Surf.Area= 107,300 sf Storage= 34,443 cf Plug-Flow detention time= 1,691.5 min calculated for 1.045 af (100% of inflow) Center-of-Mass det. time= 1,691.6 min ( 2,468.5 - 776.9 ) Volume Invert Avail.Storage Storage Description #1 908.20' 73,521 cf Custom Stage Data (Prismatic) Listed below (Recalc) 246,790 cf Overall - 1,719 cf Embedded = 245,071 cf x 30.0% Voids #2 910.50' 85,152 cf Custom Stage Data (Prismatic) Listed below (Recalc) 214,600 cf Overall - 1,719 cf Embedded = 212,881 cf x 40.0% Voids #3 908.20' 1,719 cf 8.0" Round Pipe Storage Inside #1 L= 4,925.0' #4 910.50' 1,719 cf 8.0" Round Pipe Storage Inside #2 L= 4,925.0' 162,112 cf Total Available Storage Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 908.20 107,300 0 0 910.50 107,300 246,790 246,790 Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 910.50 107,300 0 0 912.50 107,300 214,600 214,600 Device Routing Invert Outlet Devices #1 Primary 908.20'12.0" Round Culvert L= 307.0' RCP, square edge headwall, Ke= 0.500 Inlet / Outlet Invert= 908.20' / 905.13' S= 0.0100 '/' Cc= 0.900 n= 0.011 Concrete pipe, straight & clean, Flow Area= 0.79 sf #2 Device 1 909.00'8.0" Vert. Orifice/Grate C= 0.600 #3 Device 1 911.24'8.0" Vert. Orifice/Grate C= 0.600 #4 Discarded 908.20'0.060 in/hr Exfiltration over Surface area Phase-In= 0.01' Discarded OutFlow Max=0.15 cfs @ 9.29 hrs HW=908.21' (Free Discharge) 4=Exfiltration (Exfiltration Controls 0.15 cfs) Primary OutFlow Max=0.18 cfs @ 15.26 hrs HW=909.23' TW=0.00' (Dynamic Tailwater) 1=Culvert (Passes 0.18 cfs of 2.76 cfs potential flow) 2=Orifice/Grate (Orifice Controls 0.18 cfs @ 1.64 fps) 3=Orifice/Grate ( Controls 0.00 cfs) MSE 24-hr 3 1-Year A Rainfall=2.47"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 88HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Pond 47P: Bluff Creek - West Basin Inflow Outflow Discarded Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 Inflow Area=7.031 ac Peak Elev=909.23' Storage=34,443 cf 18.36 cfs 0.33 cfs 0.15 cfs 0.18 cfs MSE 24-hr 3 1-Year A Rainfall=2.47"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 89HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Pond 48P: Bluff Creek - East Basin Inflow Area = 3.441 ac, 81.34% Impervious, Inflow Depth = 1.98" for 1-Year A event Inflow = 11.64 cfs @ 12.12 hrs, Volume= 0.569 af Outflow = 0.33 cfs @ 13.62 hrs, Volume= 0.569 af, Atten= 97%, Lag= 89.6 min Discarded = 0.07 cfs @ 7.82 hrs, Volume= 0.438 af Primary = 0.26 cfs @ 13.62 hrs, Volume= 0.131 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 896.43' @ 13.62 hrs Surf.Area= 52,085 sf Storage= 17,504 cf Plug-Flow detention time= 1,431.9 min calculated for 0.569 af (100% of inflow) Center-of-Mass det. time= 1,432.0 min ( 2,193.0 - 761.0 ) Volume Invert Avail.Storage Storage Description #1 895.35' 35,688 cf Custom Stage Data (Prismatic) Listed below (Recalc) 119,795 cf Overall - 834 cf Embedded = 118,961 cf x 30.0% Voids #2 897.65' 41,334 cf Custom Stage Data (Prismatic) Listed below (Recalc) 104,170 cf Overall - 834 cf Embedded = 103,336 cf x 40.0% Voids #3 895.35' 834 cf 8.0" Round Pipe Storage Inside #1 L= 2,390.0' #4 897.65' 834 cf 8.0" Round Pipe Storage Inside #2 L= 2,390.0' 78,691 cf Total Available Storage Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 895.35 52,085 0 0 897.65 52,085 119,795 119,795 Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 897.65 52,085 0 0 899.65 52,085 104,170 104,170 Device Routing Invert Outlet Devices #1 Primary 895.35'12.0" Round Culvert L= 637.0' RCP, square edge headwall, Ke= 0.500 Inlet / Outlet Invert= 895.35' / 888.98' S= 0.0100 '/' Cc= 0.900 n= 0.011 Concrete pipe, straight & clean, Flow Area= 0.79 sf #2 Device 1 896.15'8.0" Vert. Orifice/Grate C= 0.600 #3 Device 1 898.39'8.0" Vert. Orifice/Grate C= 0.600 #4 Discarded 895.35'0.060 in/hr Exfiltration over Surface area Phase-In= 0.01' Discarded OutFlow Max=0.07 cfs @ 7.82 hrs HW=895.36' (Free Discharge) 4=Exfiltration (Exfiltration Controls 0.07 cfs) Primary OutFlow Max=0.26 cfs @ 13.62 hrs HW=896.43' TW=0.00' (Dynamic Tailwater) 1=Culvert (Passes 0.26 cfs of 2.89 cfs potential flow) 2=Orifice/Grate (Orifice Controls 0.26 cfs @ 1.81 fps) 3=Orifice/Grate ( Controls 0.00 cfs) MSE 24-hr 3 1-Year A Rainfall=2.47"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 90HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Pond 48P: Bluff Creek - East Basin Inflow Outflow Discarded Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)13 12 11 10 9 8 7 6 5 4 3 2 1 0 Inflow Area=3.441 ac Peak Elev=896.43' Storage=17,504 cf 11.64 cfs 0.33 cfs 0.07 cfs 0.26 cfs MSE 24-hr 3 1-Year A Rainfall=2.47"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 91HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Pond 48P(2): Bluff Creek - East Basin Inflow Area = 2.152 ac, 68.04% Impervious, Inflow Depth = 1.80" for 1-Year A event Inflow = 5.44 cfs @ 12.17 hrs, Volume= 0.323 af Outflow = 0.44 cfs @ 13.10 hrs, Volume= 0.323 af, Atten= 92%, Lag= 55.9 min Discarded = 0.03 cfs @ 7.51 hrs, Volume= 0.201 af Primary = 0.41 cfs @ 13.10 hrs, Volume= 0.122 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 896.92' @ 13.10 hrs Surf.Area= 24,429 sf Storage= 8,839 cf Plug-Flow detention time= 1,129.9 min calculated for 0.323 af (100% of inflow) Center-of-Mass det. time= 1,130.0 min ( 1,900.5 - 770.6 ) Volume Invert Avail.Storage Storage Description #1 895.75' 16,739 cf Custom Stage Data (Prismatic) Listed below (Recalc) 56,187 cf Overall - 391 cf Embedded = 55,795 cf x 30.0% Voids #2 898.05' 19,387 cf Custom Stage Data (Prismatic) Listed below (Recalc) 48,858 cf Overall - 391 cf Embedded = 48,467 cf x 40.0% Voids #3 895.75' 391 cf 8.0" Round Pipe Storage Inside #1 L= 1,121.0' #4 898.05' 391 cf 8.0" Round Pipe Storage Inside #2 L= 1,121.0' 36,908 cf Total Available Storage Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 895.75 24,429 0 0 898.05 24,429 56,187 56,187 Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 898.05 24,429 0 0 900.05 24,429 48,858 48,858 Device Routing Invert Outlet Devices #1 Primary 895.75'8.0" Round Culvert L= 50.0' RCP, square edge headwall, Ke= 0.500 Inlet / Outlet Invert= 895.75' / 895.25' S= 0.0100 '/' Cc= 0.900 n= 0.011 Concrete pipe, straight & clean, Flow Area= 0.35 sf #2 Device 1 896.55'8.0" Vert. Orifice/Grate C= 0.600 #3 Device 1 898.79'8.0" Vert. Orifice/Grate C= 0.600 #4 Discarded 895.75'0.060 in/hr Exfiltration over Surface area Phase-In= 0.01' Discarded OutFlow Max=0.03 cfs @ 7.51 hrs HW=895.76' (Free Discharge) 4=Exfiltration (Exfiltration Controls 0.03 cfs) Primary OutFlow Max=0.41 cfs @ 13.10 hrs HW=896.92' TW=0.00' (Dynamic Tailwater) 1=Culvert (Passes 0.41 cfs of 1.51 cfs potential flow) 2=Orifice/Grate (Orifice Controls 0.41 cfs @ 2.07 fps) 3=Orifice/Grate ( Controls 0.00 cfs) MSE 24-hr 3 1-Year A Rainfall=2.47"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 92HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Pond 48P(2): Bluff Creek - East Basin Inflow Outflow Discarded Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)6 5 4 3 2 1 0 Inflow Area=2.152 ac Peak Elev=896.92' Storage=8,839 cf 5.44 cfs 0.44 cfs 0.03 cfs0.41 cfs NOAA 24-hr A 1.10-In Equiv Rainfall=1.32"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 93HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Time span=0.00-360.00 hrs, dt=0.01 hrs, 36001 points Runoff by SCS TR-20 method, UH=SCS, Weighted-Q Reach routing by Dyn-Stor-Ind method - Pond routing by Dyn-Stor-Ind method Runoff Area=228,234 sf 16.43% Impervious Runoff Depth=0.35"Subcatchment 21S: Direct to 21P Tc=10.0 min CN=WQ Runoff=2.27 cfs 0.153 af Runoff Area=10,548 sf 0.00% Impervious Runoff Depth=0.16"Subcatchment 22oS: From Lyman Flow Length=57' Slope=0.3330 '/' Tc=5.0 min CN=78 Runoff=0.05 cfs 0.003 af Runoff Area=41,671 sf 0.00% Impervious Runoff Depth=0.20"Subcatchment 22S: Direct to Wetland 6 Tc=5.0 min CN=80 Runoff=0.30 cfs 0.016 af Runoff Area=59,105 sf 69.40% Impervious Runoff Depth=0.83"Subcatchment 24S: Northwest Tc=10.0 min CN=WQ Runoff=1.52 cfs 0.094 af Runoff Area=202,586 sf 45.17% Impervious Runoff Depth=0.61"Subcatchment 25S: West North Tc=10.0 min CN=WQ Runoff=3.73 cfs 0.236 af Runoff Area=121,658 sf 66.00% Impervious Runoff Depth=0.80"Subcatchment 28S: Avienda Pkwy - NW Tc=15.0 min CN=WQ Runoff=2.55 cfs 0.185 af Runoff Area=1,162 sf 100.00% Impervious Runoff Depth=1.10"Subcatchment 29oS: North Offsite Tc=5.0 min CN=98 Runoff=0.05 cfs 0.002 af Runoff Area=32,839 sf 22.84% Impervious Runoff Depth=0.41"Subcatchment 31S: West Central Flow Length=360' Slope=0.0200 '/' Tc=14.7 min UI Adjusted CN=WQ Runoff=0.33 cfs 0.026 af Runoff Area=115,865 sf 17.26% Impervious Runoff Depth=0.42"Subcatchment 33oS: Offsite West - North Flow Length=431' Tc=7.3 min UI Adjusted CN=WQ Runoff=1.62 cfs 0.092 af Runoff Area=78,153 sf 0.00% Impervious Runoff Depth=0.47"Subcatchment 33S: Direct to Wetland 3 Tc=12.0 min CN=WQ Runoff=1.06 cfs 0.071 af Runoff Area=25,470 sf 19.98% Impervious Runoff Depth=0.38"Subcatchment 34dS: Offsite West Direct Tc=10.0 min CN=WQ Runoff=0.28 cfs 0.019 af Runoff Area=32,710 sf 8.25% Impervious Runoff Depth=0.25"Subcatchment 34oS: Offsite to West South Flow Length=37' Slope=0.1620 '/' Tc=5.0 min UI Adjusted CN=WQ Runoff=0.28 cfs 0.016 af Runoff Area=2.423 ac 0.00% Impervious Runoff Depth=0.00"Subcatchment 34S: West Woods Flow Length=268' Tc=11.1 min CN=55 Runoff=0.00 cfs 0.000 af Runoff Area=3.790 ac 0.00% Impervious Runoff Depth=0.00"Subcatchment 35S: Southwest Flow Length=270' Tc=18.3 min CN=55 Runoff=0.00 cfs 0.000 af Runoff Area=1,628 sf 100.00% Impervious Runoff Depth=1.10"Subcatchment 36oS: Southwest Offsite Tc=5.0 min CN=98 Runoff=0.07 cfs 0.003 af Runoff Area=163,468 sf 81.66% Impervious Runoff Depth=0.94"Subcatchment 40.1S: South - East Tc=10.0 min CN=WQ Runoff=4.79 cfs 0.293 af NOAA 24-hr A 1.10-In Equiv Rainfall=1.32"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 94HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Runoff Area=200,567 sf 76.19% Impervious Runoff Depth=0.89"Subcatchment 40.2S: South - Central Tc=10.0 min CN=WQ Runoff=5.55 cfs 0.341 af Runoff Area=228,145 sf 69.55% Impervious Runoff Depth=0.83"Subcatchment 40.3S: South - West Tc=10.0 min CN=WQ Runoff=5.86 cfs 0.362 af Runoff Area=69,984 sf 85.30% Impervious Runoff Depth=0.97"Subcatchment 41.1S: South - East Tc=10.0 min CN=WQ Runoff=2.13 cfs 0.130 af Runoff Area=156,419 sf 80.17% Impervious Runoff Depth=0.92"Subcatchment 41.2S: South - Central Tc=10.0 min CN=WQ Runoff=4.51 cfs 0.277 af Runoff Area=29,884 sf 93.81% Impervious Runoff Depth=1.05"Subcatchment 41.3S: South - west Tc=10.0 min CN=WQ Runoff=0.98 cfs 0.060 af Runoff Area=41,871 sf 0.00% Impervious Runoff Depth=0.20"Subcatchment 42.1S: South Tc=5.0 min CN=80 Runoff=0.30 cfs 0.016 af Runoff Area=24,525 sf 0.00% Impervious Runoff Depth=0.20"Subcatchment 42.2S: Southeast Tc=5.0 min CN=80 Runoff=0.17 cfs 0.010 af Runoff Area=3.222 ac 0.00% Impervious Runoff Depth=0.00"Subcatchment 43.1S: East Woods Flow Length=530' Tc=15.2 min CN=55 Runoff=0.00 cfs 0.000 af Runoff Area=1.862 ac 0.00% Impervious Runoff Depth=0.00"Subcatchment 43.2S: Northeast Woods Flow Length=623' Tc=19.5 min CN=55 Runoff=0.00 cfs 0.000 af Runoff Area=441,314 sf 0.00% Impervious Runoff Depth=0.00"Subcatchment 44S: North Woods Flow Length=599' Tc=16.5 min CN=55 Runoff=0.00 cfs 0.000 af Runoff Area=206,303 sf 65.51% Impervious Runoff Depth=0.70"Subcatchment 45S: Central - West Tc=10.0 min CN=WQ Runoff=4.76 cfs 0.276 af Runoff Area=97,082 sf 19.60% Impervious Runoff Depth=0.38"Subcatchment 46S: South Townhomes Flow Length=701' Tc=12.6 min CN=WQ Runoff=0.95 cfs 0.070 af Runoff Area=2.295 ac 80.87% Impervious Runoff Depth=0.93"Subcatchment 47S: Bluff Creek Blvd - West Tc=5.0 min CN=WQ Runoff=3.54 cfs 0.178 af Runoff Area=93,721 sf 68.04% Impervious Runoff Depth=0.82"Subcatchment 48.1S: Direct to 48P (2) Tc=10.0 min CN=WQ Runoff=2.36 cfs 0.146 af Runoff Area=3.441 ac 81.34% Impervious Runoff Depth=0.94"Subcatchment 48S: Bluff Creek Blvd - East Tc=5.0 min CN=WQ Runoff=5.33 cfs 0.268 af Inflow=0.22 cfs 0.022 afReach 20R: Northwest Drainage Outflow=0.22 cfs 0.022 af Avg. Flow Depth=0.13' Max Vel=0.36 fps Inflow=0.39 cfs 0.022 afReach 21R: Lower Wetland 6 n=0.050 L=187.0' S=0.0053 '/' Capacity=3,072.14 cfs Outflow=0.22 cfs 0.022 af NOAA 24-hr A 1.10-In Equiv Rainfall=1.32"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 95HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Inflow=0.70 cfs 0.208 afReach 30R: SW Drainage Outflow=0.70 cfs 0.208 af Inflow=0.28 cfs 0.019 afReach 35R: Direct Runoff Outflow=0.28 cfs 0.019 af Inflow=1.74 cfs 0.224 afReach 40R: South Drainage Outflow=1.74 cfs 0.224 af Inflow=1.07 cfs 0.157 afReach 42.1R: South Outflow=1.07 cfs 0.157 af Inflow=0.17 cfs 0.010 afReach 42.2R: Southeast Outflow=0.17 cfs 0.010 af Inflow=0.84 cfs 0.057 afReach 44R: Wetland 4 Channel Outflow=0.84 cfs 0.057 af Inflow=0.88 cfs 0.058 afReach 48R: Development to Wetland 4 Outflow=0.88 cfs 0.058 af Inflow=2.50 cfs 0.453 afReach 50R: Bluff Creek Drainage Outflow=2.50 cfs 0.453 af Peak Elev=890.49' Storage=9,251 cf Inflow=2.27 cfs 0.273 afPond 21P: North Basin Discarded=0.05 cfs 0.273 af Primary=0.00 cfs 0.000 af Secondary=0.00 cfs 0.000 af Outflow=0.05 cfs 0.273 af Peak Elev=913.68' Storage=3,015 cf Inflow=1.52 cfs 0.094 afPond 24P: Northwest Basin Discarded=0.02 cfs 0.085 af Primary=0.02 cfs 0.008 af Outflow=0.04 cfs 0.094 af Peak Elev=913.79' Storage=5,572 cf Inflow=3.73 cfs 0.236 afPond 25P: West - North Discarded=0.02 cfs 0.125 af Primary=0.65 cfs 0.111 af Outflow=0.67 cfs 0.236 af Peak Elev=910.34' Storage=6,004 cf Inflow=2.55 cfs 0.185 afPond 28P: Avienda Pkwy - NW Basin Discarded=0.04 cfs 0.185 af Primary=0.00 cfs 0.000 af Outflow=0.04 cfs 0.185 af Peak Elev=921.82' Storage=682 cf Inflow=0.33 cfs 0.026 afPond 31P: West South Basin Discarded=0.00 cfs 0.019 af Primary=0.03 cfs 0.007 af Secondary=0.00 cfs 0.000 af Outflow=0.03 cfs 0.026 af Peak Elev=894.88' Inflow=0.65 cfs 0.111 afPond 32P: Drop MH 18.0" Round Culvert n=0.011 L=90.0' S=0.0056 '/' Outflow=0.65 cfs 0.111 af Peak Elev=920.89' Storage=3,352 cf Inflow=2.56 cfs 0.170 afPond 33P: Wetland 3 Primary=0.38 cfs 0.170 af Secondary=0.00 cfs 0.000 af Outflow=0.38 cfs 0.170 af Peak Elev=907.30' Storage=0.003 af Inflow=0.47 cfs 0.186 afPond 34P: West - South (existing) Outflow=0.43 cfs 0.186 af Peak Elev=894.88' Inflow=0.02 cfs 0.008 afPond 35P: Drop MH 12.0" Round Culvert n=0.011 L=150.0' S=0.0053 '/' Outflow=0.02 cfs 0.008 af NOAA 24-hr A 1.10-In Equiv Rainfall=1.32"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 96HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Peak Elev=894.50' Inflow=0.00 cfs 0.000 afPond 36P: Drop MH 12.0" Round Culvert n=0.011 L=100.0' S=0.0050 '/' Outflow=0.00 cfs 0.000 af Peak Elev=894.28' Storage=9,459 cf Inflow=4.79 cfs 0.293 afPond 40.1P: South East Discarded=0.07 cfs 0.293 af Primary=0.00 cfs 0.000 af Outflow=0.07 cfs 0.293 af Peak Elev=895.34' Storage=10,053 cf Inflow=5.55 cfs 0.341 afPond 40.2P: South Central Discarded=0.13 cfs 0.341 af Primary=0.00 cfs 0.000 af Outflow=0.13 cfs 0.341 af Peak Elev=898.11' Storage=11,726 cf Inflow=5.86 cfs 0.362 afPond 40.3P: South Discarded=0.08 cfs 0.362 af Primary=0.00 cfs 0.000 af Outflow=0.08 cfs 0.362 af Peak Elev=888.26' Storage=3,672 cf Inflow=2.13 cfs 0.130 afPond 41.1P: South East Discarded=0.06 cfs 0.130 af Primary=0.00 cfs 0.000 af Outflow=0.06 cfs 0.130 af Peak Elev=882.77' Storage=6,583 cf Inflow=4.51 cfs 0.277 afPond 41.2P: South Central Discarded=0.02 cfs 0.136 af Primary=0.98 cfs 0.141 af Outflow=1.01 cfs 0.277 af Peak Elev=889.99' Storage=1,676 cf Inflow=0.98 cfs 0.060 afPond 41.3P: South West Discarded=0.03 cfs 0.060 af Primary=0.00 cfs 0.000 af Outflow=0.03 cfs 0.060 af Peak Elev=884.19' Storage=203 cf Inflow=0.88 cfs 0.058 afPond 44P: Wetland 4 Outflow=0.84 cfs 0.057 af Peak Elev=885.65' Storage=626 cf Inflow=0.95 cfs 0.070 afPond 46P: Triangle Basin Discarded=0.00 cfs 0.013 af Primary=0.88 cfs 0.058 af Secondary=0.00 cfs 0.000 af Outflow=0.88 cfs 0.070 af Peak Elev=908.61' Storage=14,011 cf Inflow=7.75 cfs 0.454 afPond 47P: Bluff Creek - West Basin Discarded=0.15 cfs 0.454 af Primary=0.00 cfs 0.000 af Outflow=0.15 cfs 0.454 af Peak Elev=895.86' Storage=8,470 cf Inflow=5.33 cfs 0.268 afPond 48P: Bluff Creek - East Basin Discarded=0.07 cfs 0.268 af Primary=0.00 cfs 0.000 af Outflow=0.07 cfs 0.268 af Peak Elev=896.36' Storage=4,732 cf Inflow=2.36 cfs 0.146 afPond 48P(2): Bluff Creek - East Basin Discarded=0.03 cfs 0.146 af Primary=0.00 cfs 0.000 af Outflow=0.03 cfs 0.146 af Total Runoff Area = 79.129 ac Runoff Volume = 3.344 af Average Runoff Depth = 0.51" 60.33% Pervious = 47.742 ac 39.67% Impervious = 31.387 ac NOAA 24-hr A 1.10-In Equiv Rainfall=1.32"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 97HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 21S: Direct to 21P Runoff = 2.27 cfs @ 12.19 hrs, Volume= 0.153 af, Depth= 0.35" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs NOAA 24-hr A 1.10-In Equiv Rainfall=1.32" Area (sf) CN Description 37,500 98 Paved parking, HSG D 190,734 80 >75% Grass cover, Good, HSG D 228,234 Weighted Average 190,734 80 83.57% Pervious Area 37,500 98 16.43% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 10.0 Direct Entry, Subcatchment 21S: Direct to 21P Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)2 1 0 NOAA 24-hr A 1.10-In Equiv Rainfall=1.32" Runoff Area=228,234 sf Runoff Volume=0.153 af Runoff Depth=0.35" Tc=10.0 min CN=WQ 2.27 cfs NOAA 24-hr A 1.10-In Equiv Rainfall=1.32"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 98HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 22oS: From Lyman Runoff = 0.05 cfs @ 12.14 hrs, Volume= 0.003 af, Depth= 0.16" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs NOAA 24-hr A 1.10-In Equiv Rainfall=1.32" Area (sf) CN Description 10,548 78 Meadow, non-grazed, HSG D 10,548 78 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 2.1 57 0.3330 0.44 Sheet Flow, Grass: Short n= 0.150 P2= 2.87" 2.9 Direct Entry, Make up to 5 minutes 5.0 57 Total Subcatchment 22oS: From Lyman Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.055 0.05 0.045 0.04 0.035 0.03 0.025 0.02 0.015 0.01 0.005 0 NOAA 24-hr A 1.10-In Equiv Rainfall=1.32" Runoff Area=10,548 sf Runoff Volume=0.003 af Runoff Depth=0.16" Flow Length=57' Slope=0.3330 '/' Tc=5.0 min CN=78 0.05 cfs NOAA 24-hr A 1.10-In Equiv Rainfall=1.32"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 99HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 22S: Direct to Wetland 6 Runoff = 0.30 cfs @ 12.14 hrs, Volume= 0.016 af, Depth= 0.20" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs NOAA 24-hr A 1.10-In Equiv Rainfall=1.32" Area (sf) CN Description 41,671 80 >75% Grass cover, Good, HSG D 41,671 80 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 5.0 Direct Entry, Subcatchment 22S: Direct to Wetland 6 Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.32 0.3 0.28 0.26 0.24 0.22 0.2 0.18 0.16 0.14 0.12 0.1 0.08 0.06 0.04 0.02 0 NOAA 24-hr A 1.10-In Equiv Rainfall=1.32" Runoff Area=41,671 sf Runoff Volume=0.016 af Runoff Depth=0.20" Tc=5.0 min CN=80 0.30 cfs NOAA 24-hr A 1.10-In Equiv Rainfall=1.32"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 100HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 24S: Northwest Runoff = 1.52 cfs @ 12.17 hrs, Volume= 0.094 af, Depth= 0.83" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs NOAA 24-hr A 1.10-In Equiv Rainfall=1.32" Area (sf) CN Description 18,089 80 >75% Grass cover, Good, HSG D * 41,016 98 Paved parking and roofs, HSG D 59,105 Weighted Average 18,089 80 30.60% Pervious Area 41,016 98 69.40% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 10.0 Direct Entry, Subcatchment 24S: Northwest Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)1 0 NOAA 24-hr A 1.10-In Equiv Rainfall=1.32" Runoff Area=59,105 sf Runoff Volume=0.094 af Runoff Depth=0.83" Tc=10.0 min CN=WQ 1.52 cfs NOAA 24-hr A 1.10-In Equiv Rainfall=1.32"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 101HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 25S: West North Runoff = 3.73 cfs @ 12.18 hrs, Volume= 0.236 af, Depth= 0.61" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs NOAA 24-hr A 1.10-In Equiv Rainfall=1.32" Area (sf) CN Description 111,088 80 >75% Grass cover, Good, HSG D * 91,498 98 Paved parking, & roofs HSG D 202,586 Weighted Average 111,088 80 54.83% Pervious Area 91,498 98 45.17% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 10.0 Direct Entry, Subcatchment 25S: West North Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)4 3 2 1 0 NOAA 24-hr A 1.10-In Equiv Rainfall=1.32" Runoff Area=202,586 sf Runoff Volume=0.236 af Runoff Depth=0.61" Tc=10.0 min CN=WQ 3.73 cfs NOAA 24-hr A 1.10-In Equiv Rainfall=1.32"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 102HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 28S: Avienda Pkwy - NW Runoff = 2.55 cfs @ 12.23 hrs, Volume= 0.185 af, Depth= 0.80" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs NOAA 24-hr A 1.10-In Equiv Rainfall=1.32" Area (sf) CN Description 41,364 80 >75% Grass cover, Good, HSG D 80,294 98 Paved roads w/curbs & sewers, HSG D 121,658 Weighted Average 41,364 80 34.00% Pervious Area 80,294 98 66.00% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 15.0 Direct Entry, Subcatchment 28S: Avienda Pkwy - NW Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)2 1 0 NOAA 24-hr A 1.10-In Equiv Rainfall=1.32" Runoff Area=121,658 sf Runoff Volume=0.185 af Runoff Depth=0.80" Tc=15.0 min CN=WQ 2.55 cfs NOAA 24-hr A 1.10-In Equiv Rainfall=1.32"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 103HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 29oS: North Offsite Runoff = 0.05 cfs @ 12.12 hrs, Volume= 0.002 af, Depth= 1.10" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs NOAA 24-hr A 1.10-In Equiv Rainfall=1.32" Area (sf) CN Description 1,162 98 Paved parking, HSG D 1,162 98 100.00% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 5.0 Direct Entry, Subcatchment 29oS: North Offsite Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.05 0.045 0.04 0.035 0.03 0.025 0.02 0.015 0.01 0.005 0 NOAA 24-hr A 1.10-In Equiv Rainfall=1.32" Runoff Area=1,162 sf Runoff Volume=0.002 af Runoff Depth=1.10" Tc=5.0 min CN=98 0.05 cfs NOAA 24-hr A 1.10-In Equiv Rainfall=1.32"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 104HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 31S: West Central Runoff = 0.33 cfs @ 12.24 hrs, Volume= 0.026 af, Depth= 0.41" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs NOAA 24-hr A 1.10-In Equiv Rainfall=1.32" Area (sf) CN Adj Description 25,339 80 80 >75% Grass cover, Good, HSG D 7,500 98 98 Unconnected roofs, HSG D 32,839 Weighted Average 25,339 80 80 77.16% Pervious Area 7,500 98 98 22.84% Impervious Area 7,500 100.00% Unconnected Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 10.3 100 0.0200 0.16 Sheet Flow, Grass: Short n= 0.150 P2= 2.87" 4.4 260 0.0200 0.99 Shallow Concentrated Flow, Short Grass Pasture Kv= 7.0 fps 14.7 360 Total Subcatchment 31S: West Central Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.36 0.34 0.32 0.3 0.28 0.26 0.24 0.22 0.2 0.18 0.16 0.14 0.12 0.1 0.08 0.06 0.04 0.02 0 NOAA 24-hr A 1.10-In Equiv Rainfall=1.32" Runoff Area=32,839 sf Runoff Volume=0.026 af Runoff Depth=0.41" Flow Length=360' Slope=0.0200 '/' Tc=14.7 min UI Adjusted CN=WQ 0.33 cfs NOAA 24-hr A 1.10-In Equiv Rainfall=1.32"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 105HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 33oS: Offsite West - North Runoff = 1.62 cfs @ 12.15 hrs, Volume= 0.092 af, Depth= 0.42" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs NOAA 24-hr A 1.10-In Equiv Rainfall=1.32" Area (sf) CN Adj Description 20,000 98 98 Unconnected roofs, HSG D 71,000 80 80 >75% Grass cover, Good, HSG D * 12,720 96 96 Wetland, Good, HSG D 12,145 58 58 Meadow, non-grazed, HSG B 115,865 Weighted Average 95,865 79 79 82.74% Pervious Area 20,000 98 98 17.26% Impervious Area 20,000 100.00% Unconnected Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 5.0 25 0.0200 0.08 Sheet Flow, Grass: Dense n= 0.240 P2= 2.87" 2.3 406 0.0390 2.96 Shallow Concentrated Flow, Grassed Waterway Kv= 15.0 fps 7.3 431 Total Subcatchment 33oS: Offsite West - North Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)1 0 NOAA 24-hr A 1.10-In Equiv Rainfall=1.32" Runoff Area=115,865 sf Runoff Volume=0.092 af Runoff Depth=0.42" Flow Length=431' Tc=7.3 min UI Adjusted CN=WQ 1.62 cfs NOAA 24-hr A 1.10-In Equiv Rainfall=1.32"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 106HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 33S: Direct to Wetland 3 Runoff = 1.06 cfs @ 12.20 hrs, Volume= 0.071 af, Depth= 0.47" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs NOAA 24-hr A 1.10-In Equiv Rainfall=1.32" Area (sf) CN Description * 29,365 96 Wetland, Good, HSG D 48,788 80 >75% Grass cover, Good, HSG D 78,153 Weighted Average 78,153 86 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 12.0 Direct Entry, Subcatchment 33S: Direct to Wetland 3 Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)1 0 NOAA 24-hr A 1.10-In Equiv Rainfall=1.32" Runoff Area=78,153 sf Runoff Volume=0.071 af Runoff Depth=0.47" Tc=12.0 min CN=WQ 1.06 cfs NOAA 24-hr A 1.10-In Equiv Rainfall=1.32"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 107HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 34dS: Offsite West Direct Runoff = 0.28 cfs @ 12.18 hrs, Volume= 0.019 af, Depth= 0.38" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs NOAA 24-hr A 1.10-In Equiv Rainfall=1.32" Area (sf) CN Description 20,380 80 >75% Grass cover, Good, HSG D * 5,090 98 Paved, HSG D 25,470 Weighted Average 20,380 80 80.02% Pervious Area 5,090 98 19.98% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 10.0 Direct Entry, Subcatchment 34dS: Offsite West Direct Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.3 0.28 0.26 0.24 0.22 0.2 0.18 0.16 0.14 0.12 0.1 0.08 0.06 0.04 0.02 0 NOAA 24-hr A 1.10-In Equiv Rainfall=1.32" Runoff Area=25,470 sf Runoff Volume=0.019 af Runoff Depth=0.38" Tc=10.0 min CN=WQ 0.28 cfs NOAA 24-hr A 1.10-In Equiv Rainfall=1.32"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 108HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 34oS: Offsite to West South Runoff = 0.28 cfs @ 12.13 hrs, Volume= 0.016 af, Depth= 0.25" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs NOAA 24-hr A 1.10-In Equiv Rainfall=1.32" Area (sf) CN Adj Description 20,410 78 78 Meadow, non-grazed, HSG D 2,700 98 98 Unconnected roofs, HSG D 9,600 80 80 >75% Grass cover, Good, HSG D 32,710 Weighted Average 30,010 79 79 91.75% Pervious Area 2,700 98 98 8.25% Impervious Area 2,700 100.00% Unconnected Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 2.0 37 0.1620 0.30 Sheet Flow, Grass: Short n= 0.150 P2= 2.87" 3.0 Direct Entry, Make up to 5 minutes 5.0 37 Total Subcatchment 34oS: Offsite to West South Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.3 0.28 0.26 0.24 0.22 0.2 0.18 0.16 0.14 0.12 0.1 0.08 0.06 0.04 0.02 0 NOAA 24-hr A 1.10-In Equiv Rainfall=1.32" Runoff Area=32,710 sf Runoff Volume=0.016 af Runoff Depth=0.25" Flow Length=37' Slope=0.1620 '/' Tc=5.0 min UI Adjusted CN=WQ 0.28 cfs NOAA 24-hr A 1.10-In Equiv Rainfall=1.32"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 109HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 34S: West Woods [45] Hint: Runoff=Zero Runoff = 0.00 cfs @ 0.00 hrs, Volume= 0.000 af, Depth= 0.00" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs NOAA 24-hr A 1.10-In Equiv Rainfall=1.32" Area (ac) CN Description 2.423 55 Woods, Good, HSG B 2.423 55 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 8.4 50 0.0600 0.10 Sheet Flow, Woods: Light underbrush n= 0.400 P2= 2.87" 2.7 218 0.0710 1.33 Shallow Concentrated Flow, Woodland Kv= 5.0 fps 11.1 268 Total Subcatchment 34S: West Woods Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)1 0 NOAA 24-hr A 1.10-In Equiv Rainfall=1.32" Runoff Area=2.423 ac Runoff Volume=0.000 af Runoff Depth=0.00" Flow Length=268' Tc=11.1 min CN=55 0.00 cfs NOAA 24-hr A 1.10-In Equiv Rainfall=1.32"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 110HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 35S: Southwest [45] Hint: Runoff=Zero Runoff = 0.00 cfs @ 0.00 hrs, Volume= 0.000 af, Depth= 0.00" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs NOAA 24-hr A 1.10-In Equiv Rainfall=1.32" Area (ac) CN Description 3.790 55 Woods, Good, HSG B 3.790 55 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 16.0 75 0.0270 0.08 Sheet Flow, Woods: Light underbrush n= 0.400 P2= 2.87" 2.3 195 0.0820 1.43 Shallow Concentrated Flow, Woodland Kv= 5.0 fps 18.3 270 Total Subcatchment 35S: Southwest Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)1 0 NOAA 24-hr A 1.10-In Equiv Rainfall=1.32" Runoff Area=3.790 ac Runoff Volume=0.000 af Runoff Depth=0.00" Flow Length=270' Tc=18.3 min CN=55 0.00 cfs NOAA 24-hr A 1.10-In Equiv Rainfall=1.32"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 111HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 36oS: Southwest Offsite Runoff = 0.07 cfs @ 12.12 hrs, Volume= 0.003 af, Depth= 1.10" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs NOAA 24-hr A 1.10-In Equiv Rainfall=1.32" Area (sf) CN Description 1,628 98 Paved parking, HSG D 1,628 98 100.00% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 5.0 Direct Entry, Subcatchment 36oS: Southwest Offsite Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.075 0.07 0.065 0.06 0.055 0.05 0.045 0.04 0.035 0.03 0.025 0.02 0.015 0.01 0.005 0 NOAA 24-hr A 1.10-In Equiv Rainfall=1.32" Runoff Area=1,628 sf Runoff Volume=0.003 af Runoff Depth=1.10" Tc=5.0 min CN=98 0.07 cfs NOAA 24-hr A 1.10-In Equiv Rainfall=1.32"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 112HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 40.1S: South - East Runoff = 4.79 cfs @ 12.17 hrs, Volume= 0.293 af, Depth= 0.94" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs NOAA 24-hr A 1.10-In Equiv Rainfall=1.32" Area (sf) CN Description 29,976 80 >75% Grass cover, Good, HSG D 133,492 98 Paved parking, HSG D 163,468 Weighted Average 29,976 80 18.34% Pervious Area 133,492 98 81.66% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 10.0 Direct Entry, Subcatchment 40.1S: South - East Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)5 4 3 2 1 0 NOAA 24-hr A 1.10-In Equiv Rainfall=1.32" Runoff Area=163,468 sf Runoff Volume=0.293 af Runoff Depth=0.94" Tc=10.0 min CN=WQ 4.79 cfs NOAA 24-hr A 1.10-In Equiv Rainfall=1.32"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 113HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 40.2S: South - Central Runoff = 5.55 cfs @ 12.17 hrs, Volume= 0.341 af, Depth= 0.89" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs NOAA 24-hr A 1.10-In Equiv Rainfall=1.32" Area (sf) CN Description 47,748 80 >75% Grass cover, Good, HSG D 152,819 98 Paved parking, HSG D 200,567 Weighted Average 47,748 80 23.81% Pervious Area 152,819 98 76.19% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 10.0 Direct Entry, Subcatchment 40.2S: South - Central Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)6 5 4 3 2 1 0 NOAA 24-hr A 1.10-In Equiv Rainfall=1.32" Runoff Area=200,567 sf Runoff Volume=0.341 af Runoff Depth=0.89" Tc=10.0 min CN=WQ 5.55 cfs NOAA 24-hr A 1.10-In Equiv Rainfall=1.32"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 114HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 40.3S: South - West Runoff = 5.86 cfs @ 12.17 hrs, Volume= 0.362 af, Depth= 0.83" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs NOAA 24-hr A 1.10-In Equiv Rainfall=1.32" Area (sf) CN Description 69,464 80 >75% Grass cover, Good, HSG D * 158,681 98 Paved parking & roofs, HSG D 228,145 Weighted Average 69,464 80 30.45% Pervious Area 158,681 98 69.55% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 10.0 Direct Entry, Subcatchment 40.3S: South - West Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)6 5 4 3 2 1 0 NOAA 24-hr A 1.10-In Equiv Rainfall=1.32" Runoff Area=228,145 sf Runoff Volume=0.362 af Runoff Depth=0.83" Tc=10.0 min CN=WQ 5.86 cfs NOAA 24-hr A 1.10-In Equiv Rainfall=1.32"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 115HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 41.1S: South - East Runoff = 2.13 cfs @ 12.17 hrs, Volume= 0.130 af, Depth= 0.97" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs NOAA 24-hr A 1.10-In Equiv Rainfall=1.32" Area (sf) CN Description 10,289 80 >75% Grass cover, Good, HSG D 59,695 98 Paved parking, HSG D 69,984 Weighted Average 10,289 80 14.70% Pervious Area 59,695 98 85.30% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 10.0 Direct Entry, Subcatchment 41.1S: South - East Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)2 1 0 NOAA 24-hr A 1.10-In Equiv Rainfall=1.32" Runoff Area=69,984 sf Runoff Volume=0.130 af Runoff Depth=0.97" Tc=10.0 min CN=WQ 2.13 cfs NOAA 24-hr A 1.10-In Equiv Rainfall=1.32"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 116HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 41.2S: South - Central Runoff = 4.51 cfs @ 12.17 hrs, Volume= 0.277 af, Depth= 0.92" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs NOAA 24-hr A 1.10-In Equiv Rainfall=1.32" Area (sf) CN Description 31,015 80 >75% Grass cover, Good, HSG D 125,404 98 Paved parking, HSG D 156,419 Weighted Average 31,015 80 19.83% Pervious Area 125,404 98 80.17% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 10.0 Direct Entry, Subcatchment 41.2S: South - Central Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)5 4 3 2 1 0 NOAA 24-hr A 1.10-In Equiv Rainfall=1.32" Runoff Area=156,419 sf Runoff Volume=0.277 af Runoff Depth=0.92" Tc=10.0 min CN=WQ 4.51 cfs NOAA 24-hr A 1.10-In Equiv Rainfall=1.32"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 117HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 41.3S: South - west Runoff = 0.98 cfs @ 12.17 hrs, Volume= 0.060 af, Depth= 1.05" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs NOAA 24-hr A 1.10-In Equiv Rainfall=1.32" Area (sf) CN Description 1,850 80 >75% Grass cover, Good, HSG D 28,034 98 Paved parking, HSG D 29,884 Weighted Average 1,850 80 6.19% Pervious Area 28,034 98 93.81% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 10.0 Direct Entry, Subcatchment 41.3S: South - west Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)1 0 NOAA 24-hr A 1.10-In Equiv Rainfall=1.32" Runoff Area=29,884 sf Runoff Volume=0.060 af Runoff Depth=1.05" Tc=10.0 min CN=WQ 0.98 cfs NOAA 24-hr A 1.10-In Equiv Rainfall=1.32"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 118HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 42.1S: South Runoff = 0.30 cfs @ 12.14 hrs, Volume= 0.016 af, Depth= 0.20" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs NOAA 24-hr A 1.10-In Equiv Rainfall=1.32" Area (sf) CN Description 41,871 80 >75% Grass cover, Good, HSG D 41,871 80 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 5.0 Direct Entry, Subcatchment 42.1S: South Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.32 0.3 0.28 0.26 0.24 0.22 0.2 0.18 0.16 0.14 0.12 0.1 0.08 0.06 0.04 0.02 0 NOAA 24-hr A 1.10-In Equiv Rainfall=1.32" Runoff Area=41,871 sf Runoff Volume=0.016 af Runoff Depth=0.20" Tc=5.0 min CN=80 0.30 cfs NOAA 24-hr A 1.10-In Equiv Rainfall=1.32"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 119HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 42.2S: Southeast Runoff = 0.17 cfs @ 12.14 hrs, Volume= 0.010 af, Depth= 0.20" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs NOAA 24-hr A 1.10-In Equiv Rainfall=1.32" Area (sf) CN Description 24,525 80 >75% Grass cover, Good, HSG D 24,525 80 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 5.0 Direct Entry, Subcatchment 42.2S: Southeast Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.19 0.18 0.17 0.16 0.15 0.14 0.13 0.12 0.11 0.1 0.09 0.08 0.07 0.06 0.05 0.04 0.03 0.02 0.01 0 NOAA 24-hr A 1.10-In Equiv Rainfall=1.32" Runoff Area=24,525 sf Runoff Volume=0.010 af Runoff Depth=0.20" Tc=5.0 min CN=80 0.17 cfs NOAA 24-hr A 1.10-In Equiv Rainfall=1.32"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 120HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 43.1S: East Woods [45] Hint: Runoff=Zero Runoff = 0.00 cfs @ 0.00 hrs, Volume= 0.000 af, Depth= 0.00" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs NOAA 24-hr A 1.10-In Equiv Rainfall=1.32" Area (ac) CN Description 3.222 55 Woods, Good, HSG B 3.222 55 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 11.1 75 0.0670 0.11 Sheet Flow, Woods: Light underbrush n= 0.400 P2= 2.87" 4.1 455 0.1380 1.86 Shallow Concentrated Flow, Woodland Kv= 5.0 fps 15.2 530 Total Subcatchment 43.1S: East Woods Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)1 0 NOAA 24-hr A 1.10-In Equiv Rainfall=1.32" Runoff Area=3.222 ac Runoff Volume=0.000 af Runoff Depth=0.00" Flow Length=530' Tc=15.2 min CN=55 0.00 cfs NOAA 24-hr A 1.10-In Equiv Rainfall=1.32"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 121HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 43.2S: Northeast Woods [45] Hint: Runoff=Zero Runoff = 0.00 cfs @ 0.00 hrs, Volume= 0.000 af, Depth= 0.00" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs NOAA 24-hr A 1.10-In Equiv Rainfall=1.32" Area (ac) CN Description 1.862 55 Woods, Good, HSG B 1.862 55 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 14.2 100 0.0650 0.12 Sheet Flow, Woods: Light underbrush n= 0.400 P2= 2.87" 5.3 523 0.1080 1.64 Shallow Concentrated Flow, Woodland Kv= 5.0 fps 19.5 623 Total Subcatchment 43.2S: Northeast Woods Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)1 0 NOAA 24-hr A 1.10-In Equiv Rainfall=1.32" Runoff Area=1.862 ac Runoff Volume=0.000 af Runoff Depth=0.00" Flow Length=623' Tc=19.5 min CN=55 0.00 cfs NOAA 24-hr A 1.10-In Equiv Rainfall=1.32"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 122HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 44S: North Woods [45] Hint: Runoff=Zero Runoff = 0.00 cfs @ 0.00 hrs, Volume= 0.000 af, Depth= 0.00" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs NOAA 24-hr A 1.10-In Equiv Rainfall=1.32" Area (sf) CN Description 441,314 55 Woods, Good, HSG B 441,314 55 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 11.2 75 0.0660 0.11 Sheet Flow, Woods: Light underbrush n= 0.400 P2= 2.87" 5.3 524 0.1090 1.65 Shallow Concentrated Flow, Woodland Kv= 5.0 fps 16.5 599 Total Subcatchment 44S: North Woods Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)1 0 NOAA 24-hr A 1.10-In Equiv Rainfall=1.32" Runoff Area=441,314 sf Runoff Volume=0.000 af Runoff Depth=0.00" Flow Length=599' Tc=16.5 min CN=55 0.00 cfs NOAA 24-hr A 1.10-In Equiv Rainfall=1.32"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 123HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 45S: Central - West Runoff = 4.76 cfs @ 12.18 hrs, Volume= 0.276 af, Depth= 0.70" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs NOAA 24-hr A 1.10-In Equiv Rainfall=1.32" Area (sf) CN Description 159,000 95 Urban commercial, 85% imp, HSG D 47,303 80 >75% Grass cover, Good, HSG D 206,303 Weighted Average 71,153 79 34.49% Pervious Area 135,150 98 65.51% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 10.0 Direct Entry, Subcatchment 45S: Central - West Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)5 4 3 2 1 0 NOAA 24-hr A 1.10-In Equiv Rainfall=1.32" Runoff Area=206,303 sf Runoff Volume=0.276 af Runoff Depth=0.70" Tc=10.0 min CN=WQ 4.76 cfs NOAA 24-hr A 1.10-In Equiv Rainfall=1.32"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 124HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 46S: South Townhomes Runoff = 0.95 cfs @ 12.22 hrs, Volume= 0.070 af, Depth= 0.38" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs NOAA 24-hr A 1.10-In Equiv Rainfall=1.32" Area (sf) CN Description 19,025 98 Paved parking, HSG D 78,057 80 >75% Grass cover, Good, HSG D 97,082 Weighted Average 78,057 80 80.40% Pervious Area 19,025 98 19.60% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 11.7 92 0.0320 0.13 Sheet Flow, Grass: Dense n= 0.240 P2= 2.87" 0.9 609 0.5200 10.82 Shallow Concentrated Flow, Grassed Waterway Kv= 15.0 fps 12.6 701 Total Subcatchment 46S: South Townhomes Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)1 0 NOAA 24-hr A 1.10-In Equiv Rainfall=1.32" Runoff Area=97,082 sf Runoff Volume=0.070 af Runoff Depth=0.38" Flow Length=701' Tc=12.6 min CN=WQ 0.95 cfs NOAA 24-hr A 1.10-In Equiv Rainfall=1.32"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 125HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 47S: Bluff Creek Blvd - West Runoff = 3.54 cfs @ 12.12 hrs, Volume= 0.178 af, Depth= 0.93" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs NOAA 24-hr A 1.10-In Equiv Rainfall=1.32" Area (ac) CN Description 0.439 80 >75% Grass cover, Good, HSG D 1.856 98 Paved roads w/curbs & sewers, HSG D 2.295 Weighted Average 0.439 80 19.13% Pervious Area 1.856 98 80.87% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 5.0 Direct Entry, Subcatchment 47S: Bluff Creek Blvd - West Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)3 2 1 0 NOAA 24-hr A 1.10-In Equiv Rainfall=1.32" Runoff Area=2.295 ac Runoff Volume=0.178 af Runoff Depth=0.93" Tc=5.0 min CN=WQ 3.54 cfs NOAA 24-hr A 1.10-In Equiv Rainfall=1.32"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 126HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 48.1S: Direct to 48P (2) Runoff = 2.36 cfs @ 12.17 hrs, Volume= 0.146 af, Depth= 0.82" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs NOAA 24-hr A 1.10-In Equiv Rainfall=1.32" Area (sf) CN Description 29,956 80 >75% Grass cover, Good, HSG D 63,765 98 Paved parking, HSG D 93,721 Weighted Average 29,956 80 31.96% Pervious Area 63,765 98 68.04% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 10.0 Direct Entry, Subcatchment 48.1S: Direct to 48P (2) Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)2 1 0 NOAA 24-hr A 1.10-In Equiv Rainfall=1.32" Runoff Area=93,721 sf Runoff Volume=0.146 af Runoff Depth=0.82" Tc=10.0 min CN=WQ 2.36 cfs NOAA 24-hr A 1.10-In Equiv Rainfall=1.32"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 127HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 48S: Bluff Creek Blvd - East Runoff = 5.33 cfs @ 12.12 hrs, Volume= 0.268 af, Depth= 0.94" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs NOAA 24-hr A 1.10-In Equiv Rainfall=1.32" Area (ac) CN Description 0.642 80 >75% Grass cover, Good, HSG D 2.799 98 Paved roads w/curbs & sewers, HSG D 3.441 Weighted Average 0.642 80 18.66% Pervious Area 2.799 98 81.34% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 5.0 Direct Entry, Subcatchment 48S: Bluff Creek Blvd - East Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)5 4 3 2 1 0 NOAA 24-hr A 1.10-In Equiv Rainfall=1.32" Runoff Area=3.441 ac Runoff Volume=0.268 af Runoff Depth=0.94" Tc=5.0 min CN=WQ 5.33 cfs NOAA 24-hr A 1.10-In Equiv Rainfall=1.32"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 128HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Reach 20R: Northwest Drainage [40] Hint: Not Described (Outflow=Inflow) Inflow Area = 15.265 ac, 37.82% Impervious, Inflow Depth = 0.02" for 1.10-In Equiv event Inflow = 0.22 cfs @ 12.22 hrs, Volume= 0.022 af Outflow = 0.22 cfs @ 12.22 hrs, Volume= 0.022 af, Atten= 0%, Lag= 0.0 min Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Reach 20R: Northwest Drainage Inflow Outflow Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.24 0.23 0.22 0.21 0.2 0.19 0.18 0.17 0.16 0.15 0.14 0.13 0.12 0.11 0.1 0.09 0.08 0.07 0.06 0.05 0.04 0.03 0.02 0.01 0 Inflow Area=15.265 ac 0.22 cfs 0.22 cfs NOAA 24-hr A 1.10-In Equiv Rainfall=1.32"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 129HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Reach 21R: Lower Wetland 6 Inflow Area = 15.265 ac, 37.82% Impervious, Inflow Depth = 0.02" for 1.10-In Equiv event Inflow = 0.39 cfs @ 12.14 hrs, Volume= 0.022 af Outflow = 0.22 cfs @ 12.22 hrs, Volume= 0.022 af, Atten= 44%, Lag= 4.8 min Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Max. Velocity= 0.36 fps, Min. Travel Time= 8.7 min Avg. Velocity = 0.22 fps, Avg. Travel Time= 14.5 min Peak Storage= 117 cf @ 12.22 hrs Average Depth at Peak Storage= 0.13' Bank-Full Depth= 5.99' Flow Area= 570.1 sf, Capacity= 3,072.14 cfs Custom cross-section, Length= 187.0' Slope= 0.0053 '/' (102 Elevation Intervals) Constant n= 0.050 Scattered brush, heavy weeds Inlet Invert= 885.00', Outlet Invert= 884.00' ‡ Offset Elevation Chan.Depth (feet) (feet) (feet) 0.00 890.40 0.00 43.10 886.55 3.85 85.60 884.41 5.99 126.20 885.14 5.26 145.10 890.40 0.00 Depth End Area Perim. Storage Discharge (feet) (sq-ft) (feet) (cubic-feet) (cfs) 0.00 0.0 0.0 0 0.00 0.73 20.1 55.1 3,761 22.32 2.14 121.1 88.4 22,648 324.64 5.99 570.1 146.1 106,618 3,072.14 NOAA 24-hr A 1.10-In Equiv Rainfall=1.32"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 130HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Reach 21R: Lower Wetland 6 Inflow Outflow Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.44 0.42 0.4 0.38 0.36 0.34 0.32 0.3 0.28 0.26 0.24 0.22 0.2 0.18 0.16 0.14 0.12 0.1 0.08 0.06 0.04 0.02 0 Inflow Area=15.265 ac Avg. Flow Depth=0.13' Max Vel=0.36 fps n=0.050 L=187.0' S=0.0053 '/' Capacity=3,072.14 cfs 0.39 cfs 0.22 cfs NOAA 24-hr A 1.10-In Equiv Rainfall=1.32"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 131HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Reach 30R: SW Drainage [40] Hint: Not Described (Outflow=Inflow) Inflow Area = 12.794 ac, 6.62% Impervious, Inflow Depth = 0.19" for 1.10-In Equiv event Inflow = 0.70 cfs @ 12.19 hrs, Volume= 0.208 af Outflow = 0.70 cfs @ 12.19 hrs, Volume= 0.208 af, Atten= 0%, Lag= 0.0 min Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Reach 30R: SW Drainage Inflow Outflow Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.75 0.7 0.65 0.6 0.55 0.5 0.45 0.4 0.35 0.3 0.25 0.2 0.15 0.1 0.05 0 Inflow Area=12.794 ac 0.70 cfs 0.70 cfs NOAA 24-hr A 1.10-In Equiv Rainfall=1.32"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 132HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Reach 35R: Direct Runoff [40] Hint: Not Described (Outflow=Inflow) Inflow Area = 4.375 ac, 2.67% Impervious, Inflow Depth = 0.05" for 1.10-In Equiv event Inflow = 0.28 cfs @ 12.18 hrs, Volume= 0.019 af Outflow = 0.28 cfs @ 12.18 hrs, Volume= 0.019 af, Atten= 0%, Lag= 0.0 min Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Reach 35R: Direct Runoff Inflow Outflow Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.3 0.28 0.26 0.24 0.22 0.2 0.18 0.16 0.14 0.12 0.1 0.08 0.06 0.04 0.02 0 Inflow Area=4.375 ac 0.28 cfs 0.28 cfs NOAA 24-hr A 1.10-In Equiv Rainfall=1.32"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 133HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Reach 40R: South Drainage [40] Hint: Not Described (Outflow=Inflow) Inflow Area = 51.070 ac, 48.50% Impervious, Inflow Depth = 0.05" for 1.10-In Equiv event Inflow = 1.74 cfs @ 12.35 hrs, Volume= 0.224 af Outflow = 1.74 cfs @ 12.35 hrs, Volume= 0.224 af, Atten= 0%, Lag= 0.0 min Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Reach 40R: South Drainage Inflow Outflow Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)1 0 Inflow Area=51.070 ac 1.74 cfs 1.74 cfs NOAA 24-hr A 1.10-In Equiv Rainfall=1.32"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 134HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Reach 42.1R: South [40] Hint: Not Described (Outflow=Inflow) Inflow Area = 9.843 ac, 71.43% Impervious, Inflow Depth = 0.19" for 1.10-In Equiv event Inflow = 1.07 cfs @ 12.52 hrs, Volume= 0.157 af Outflow = 1.07 cfs @ 12.52 hrs, Volume= 0.157 af, Atten= 0%, Lag= 0.0 min Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Reach 42.1R: South Inflow Outflow Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)1 0 Inflow Area=9.843 ac 1.07 cfs 1.07 cfs NOAA 24-hr A 1.10-In Equiv Rainfall=1.32"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 135HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Reach 42.2R: Southeast [40] Hint: Not Described (Outflow=Inflow) Inflow Area = 11.515 ac, 75.54% Impervious, Inflow Depth = 0.01" for 1.10-In Equiv event Inflow = 0.17 cfs @ 12.14 hrs, Volume= 0.010 af Outflow = 0.17 cfs @ 12.14 hrs, Volume= 0.010 af, Atten= 0%, Lag= 0.0 min Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Reach 42.2R: Southeast Inflow Outflow Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.19 0.18 0.17 0.16 0.15 0.14 0.13 0.12 0.11 0.1 0.09 0.08 0.07 0.06 0.05 0.04 0.03 0.02 0.01 0 Inflow Area=11.515 ac 0.17 cfs 0.17 cfs NOAA 24-hr A 1.10-In Equiv Rainfall=1.32"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 136HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Reach 44R: Wetland 4 Channel [40] Hint: Not Described (Outflow=Inflow) Inflow Area = 26.490 ac, 34.12% Impervious, Inflow Depth = 0.03" for 1.10-In Equiv event Inflow = 0.84 cfs @ 12.30 hrs, Volume= 0.057 af Outflow = 0.84 cfs @ 12.30 hrs, Volume= 0.057 af, Atten= 0%, Lag= 0.0 min Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Reach 44R: Wetland 4 Channel Inflow Outflow Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.9 0.85 0.8 0.75 0.7 0.65 0.6 0.55 0.5 0.45 0.4 0.35 0.3 0.25 0.2 0.15 0.1 0.05 0 Inflow Area=26.490 ac 0.84 cfs 0.84 cfs NOAA 24-hr A 1.10-In Equiv Rainfall=1.32"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 137HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Reach 48R: Development to Wetland 4 [40] Hint: Not Described (Outflow=Inflow) Inflow Area = 14.497 ac, 62.34% Impervious, Inflow Depth = 0.05" for 1.10-In Equiv event Inflow = 0.88 cfs @ 12.26 hrs, Volume= 0.058 af Outflow = 0.88 cfs @ 12.26 hrs, Volume= 0.058 af, Atten= 0%, Lag= 0.0 min Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Reach 48R: Development to Wetland 4 Inflow Outflow Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.95 0.9 0.85 0.8 0.75 0.7 0.65 0.6 0.55 0.5 0.45 0.4 0.35 0.3 0.25 0.2 0.15 0.1 0.05 0 Inflow Area=14.497 ac 0.88 cfs 0.88 cfs NOAA 24-hr A 1.10-In Equiv Rainfall=1.32"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 138HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Reach 50R: Bluff Creek Drainage [40] Hint: Not Described (Outflow=Inflow) Inflow Area = 79.129 ac, 39.67% Impervious, Inflow Depth = 0.07" for 1.10-In Equiv event Inflow = 2.50 cfs @ 12.34 hrs, Volume= 0.453 af Outflow = 2.50 cfs @ 12.34 hrs, Volume= 0.453 af, Atten= 0%, Lag= 0.0 min Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Reach 50R: Bluff Creek Drainage Inflow Outflow Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)2 1 0 Inflow Area=79.129 ac 2.50 cfs 2.50 cfs NOAA 24-hr A 1.10-In Equiv Rainfall=1.32"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 139HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Pond 21P: North Basin Inflow Area = 14.040 ac, 40.93% Impervious, Inflow Depth = 0.23" for 1.10-In Equiv event Inflow = 2.27 cfs @ 12.19 hrs, Volume= 0.273 af Outflow = 0.05 cfs @ 11.29 hrs, Volume= 0.273 af, Atten= 98%, Lag= 0.0 min Discarded = 0.05 cfs @ 11.29 hrs, Volume= 0.273 af Primary = 0.00 cfs @ 0.00 hrs, Volume= 0.000 af Secondary = 0.00 cfs @ 0.00 hrs, Volume= 0.000 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 890.49' @ 22.08 hrs Surf.Area= 37,120 sf Storage= 9,251 cf Plug-Flow detention time= 1,657.4 min calculated for 0.273 af (100% of inflow) Center-of-Mass det. time= 1,657.5 min ( 2,511.1 - 853.7 ) Volume Invert Avail.Storage Storage Description #1 889.70' 25,434 cf Sand Section (Prismatic) Listed below (Recalc) 85,376 cf Overall - 594 cf Embedded = 84,782 cf x 30.0% Voids #2 892.00' 5,568 cf Topsoil (Prismatic) Listed below (Recalc) 18,560 cf Overall x 30.0% Voids #3 892.50' 150,182 cf Open Pond (Prismatic) Listed below (Recalc) #4 889.70' 594 cf 8.0" Round Pipe Storage Inside #1 L= 1,703.0' 181,778 cf Total Available Storage Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 889.70 37,120 0 0 892.00 37,120 85,376 85,376 Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 892.00 37,120 0 0 892.50 37,120 18,560 18,560 Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 892.50 37,120 0 0 893.00 38,678 18,950 18,950 894.00 41,838 40,258 59,208 895.00 45,055 43,447 102,654 896.00 50,000 47,528 150,182 Device Routing Invert Outlet Devices #1 Primary 889.70'18.0" Round Culvert L= 45.0' RCP, sq.cut end projecting, Ke= 0.500 Inlet / Outlet Invert= 889.70' / 889.38' S= 0.0071 '/' Cc= 0.900 n= 0.011 Concrete pipe, straight & clean, Flow Area= 1.77 sf #2 Device 1 890.50'12.0" Vert. Orifice/Grate C= 0.600 #3 Device 1 892.74'12.0" Vert. Orifice/Grate C= 0.600 #4 Discarded 889.70'0.060 in/hr Exfiltration over Surface area Phase-In= 0.01' NOAA 24-hr A 1.10-In Equiv Rainfall=1.32"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 140HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC #5 Secondary 894.00'20.0' long x 5.0' breadth Broad-Crested Rectangular Weir Head (feet) 0.20 0.40 0.60 0.80 1.00 1.20 1.40 1.60 1.80 2.00 2.50 3.00 3.50 4.00 4.50 5.00 5.50 Coef. (English) 2.34 2.50 2.70 2.68 2.68 2.66 2.65 2.65 2.65 2.65 2.67 2.66 2.68 2.70 2.74 2.79 2.88 Discarded OutFlow Max=0.05 cfs @ 11.29 hrs HW=889.71' (Free Discharge) 4=Exfiltration (Exfiltration Controls 0.05 cfs) Primary OutFlow Max=0.00 cfs @ 0.00 hrs HW=889.70' TW=885.00' (Dynamic Tailwater) 1=Culvert ( Controls 0.00 cfs) 2=Orifice/Grate ( Controls 0.00 cfs) 3=Orifice/Grate ( Controls 0.00 cfs) Secondary OutFlow Max=0.00 cfs @ 0.00 hrs HW=889.70' TW=885.00' (Dynamic Tailwater) 5=Broad-Crested Rectangular Weir ( Controls 0.00 cfs) Pond 21P: North Basin Inflow Outflow Discarded Primary Secondary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)2 1 0 Inflow Area=14.040 ac Peak Elev=890.49' Storage=9,251 cf 2.27 cfs 0.05 cfs 0.05 cfs 0.00 cfs 0.00 cfs NOAA 24-hr A 1.10-In Equiv Rainfall=1.32"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 141HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Pond 24P: Northwest Basin Inflow Area = 1.357 ac, 69.40% Impervious, Inflow Depth = 0.83" for 1.10-In Equiv event Inflow = 1.52 cfs @ 12.17 hrs, Volume= 0.094 af Outflow = 0.04 cfs @ 15.04 hrs, Volume= 0.094 af, Atten= 98%, Lag= 172.1 min Discarded = 0.02 cfs @ 9.50 hrs, Volume= 0.085 af Primary = 0.02 cfs @ 15.04 hrs, Volume= 0.008 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 913.68' @ 15.04 hrs Surf.Area= 11,000 sf Storage= 3,015 cf Plug-Flow detention time= 1,568.8 min calculated for 0.094 af (100% of inflow) Center-of-Mass det. time= 1,568.9 min ( 2,351.1 - 782.2 ) Volume Invert Avail.Storage Storage Description #1 912.80' 7,537 cf Custom Stage Data (Prismatic) Listed below (Recalc) 25,300 cf Overall - 176 cf Embedded = 25,124 cf x 30.0% Voids #2 915.10' 8,729 cf Custom Stage Data (Prismatic) Listed below (Recalc) 22,000 cf Overall - 176 cf Embedded = 21,824 cf x 40.0% Voids #3 912.80' 176 cf 8.0" Round Pipe Storage Inside #1 L= 505.0' #4 915.10' 176 cf 8.0" Round Pipe Storage Inside #2 L= 505.0' 16,619 cf Total Available Storage Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 912.80 11,000 0 0 915.10 11,000 25,300 25,300 Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 915.10 11,000 0 0 917.10 11,000 22,000 22,000 Device Routing Invert Outlet Devices #1 Primary 912.80'12.0" Round Culvert L= 100.0' RCP, sq.cut end projecting, Ke= 0.500 Inlet / Outlet Invert= 912.80' / 912.10' S= 0.0070 '/' Cc= 0.900 n= 0.011 Concrete pipe, straight & clean, Flow Area= 0.79 sf #2 Device 1 913.60'8.0" Vert. Orifice/Grate C= 0.600 #3 Device 1 915.77'8.0" Vert. Orifice/Grate C= 0.600 #4 Discarded 912.80'0.060 in/hr Exfiltration over Surface area Phase-In= 0.01' Discarded OutFlow Max=0.02 cfs @ 9.50 hrs HW=912.81' (Free Discharge) 4=Exfiltration (Exfiltration Controls 0.02 cfs) Primary OutFlow Max=0.02 cfs @ 15.04 hrs HW=913.68' TW=894.88' (Dynamic Tailwater) 1=Culvert (Passes 0.02 cfs of 2.30 cfs potential flow) 2=Orifice/Grate (Orifice Controls 0.02 cfs @ 0.94 fps) 3=Orifice/Grate ( Controls 0.00 cfs) NOAA 24-hr A 1.10-In Equiv Rainfall=1.32"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 142HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Pond 24P: Northwest Basin Inflow Outflow Discarded Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)1 0 Inflow Area=1.357 ac Peak Elev=913.68' Storage=3,015 cf 1.52 cfs 0.04 cfs 0.02 cfs 0.02 cfs NOAA 24-hr A 1.10-In Equiv Rainfall=1.32"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 143HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Pond 25P: West - North Inflow Area = 4.651 ac, 45.17% Impervious, Inflow Depth = 0.61" for 1.10-In Equiv event Inflow = 3.73 cfs @ 12.18 hrs, Volume= 0.236 af Outflow = 0.67 cfs @ 12.65 hrs, Volume= 0.236 af, Atten= 82%, Lag= 28.7 min Discarded = 0.02 cfs @ 8.47 hrs, Volume= 0.125 af Primary = 0.65 cfs @ 12.65 hrs, Volume= 0.111 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 913.79' @ 12.65 hrs Surf.Area= 15,560 sf Storage= 5,572 cf Plug-Flow detention time= 953.4 min calculated for 0.236 af (100% of inflow) Center-of-Mass det. time= 953.5 min ( 1,746.2 - 792.7 ) Volume Invert Avail.Storage Storage Description #1 912.63' 10,662 cf Custom Stage Data (Prismatic) Listed below (Recalc) 35,788 cf Overall - 249 cf Embedded = 35,539 cf x 30.0% Voids #2 914.93' 12,348 cf Custom Stage Data (Prismatic) Listed below (Recalc) 31,120 cf Overall - 249 cf Embedded = 30,871 cf x 40.0% Voids #3 916.93' 9,772 cf Custom Stage Data (Prismatic) Listed below (Recalc) 24,429 cf Overall x 40.0% Voids #4 912.63' 249 cf 8.0" Round Pipe Storage Inside #1 L= 714.0' #5 914.93' 249 cf 8.0" Round Pipe Storage Inside #2 L= 714.0' 33,280 cf Total Available Storage Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 912.63 15,560 0 0 914.93 15,560 35,788 35,788 Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 914.93 15,560 0 0 916.93 15,560 31,120 31,120 Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 916.93 15,560 0 0 918.50 15,560 24,429 24,429 Device Routing Invert Outlet Devices #1 Primary 912.63'18.0" Round Culvert L= 153.0' RCP, sq.cut end projecting, Ke= 0.500 Inlet / Outlet Invert= 912.63' / 911.10' S= 0.0100 '/' Cc= 0.900 n= 0.011 Concrete pipe, straight & clean, Flow Area= 1.77 sf #2 Device 1 913.43'18.0" Vert. Orifice/Grate C= 0.600 #3 Device 1 915.67'18.0" Vert. Orifice/Grate C= 0.600 #4 Discarded 912.63'0.060 in/hr Exfiltration over Surface area Phase-In= 0.01' NOAA 24-hr A 1.10-In Equiv Rainfall=1.32"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 144HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Discarded OutFlow Max=0.02 cfs @ 8.47 hrs HW=912.64' (Free Discharge) 4=Exfiltration (Exfiltration Controls 0.02 cfs) Primary OutFlow Max=0.65 cfs @ 12.65 hrs HW=913.79' TW=894.88' (Dynamic Tailwater) 1=Culvert (Passes 0.65 cfs of 5.35 cfs potential flow) 2=Orifice/Grate (Orifice Controls 0.65 cfs @ 2.03 fps) 3=Orifice/Grate ( Controls 0.00 cfs) Pond 25P: West - North Inflow Outflow Discarded Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)4 3 2 1 0 Inflow Area=4.651 ac Peak Elev=913.79' Storage=5,572 cf 3.73 cfs 0.67 cfs 0.02 cfs 0.65 cfs NOAA 24-hr A 1.10-In Equiv Rainfall=1.32"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 145HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Pond 28P: Avienda Pkwy - NW Basin Inflow Area = 2.793 ac, 66.00% Impervious, Inflow Depth = 0.80" for 1.10-In Equiv event Inflow = 2.55 cfs @ 12.23 hrs, Volume= 0.185 af Outflow = 0.04 cfs @ 10.16 hrs, Volume= 0.185 af, Atten= 98%, Lag= 0.0 min Discarded = 0.04 cfs @ 10.16 hrs, Volume= 0.185 af Primary = 0.00 cfs @ 0.00 hrs, Volume= 0.000 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 910.34' @ 17.43 hrs Surf.Area= 30,906 sf Storage= 6,004 cf Plug-Flow detention time= 1,283.6 min calculated for 0.185 af (100% of inflow) Center-of-Mass det. time= 1,283.6 min ( 2,071.6 - 788.0 ) Volume Invert Avail.Storage Storage Description #1 909.73' 21,177 cf Custom Stage Data (Prismatic) Listed below (Recalc) 71,084 cf Overall - 495 cf Embedded = 70,589 cf x 30.0% Voids #2 912.03' 24,527 cf Custom Stage Data (Prismatic) Listed below (Recalc) 61,812 cf Overall - 495 cf Embedded = 61,317 cf x 40.0% Voids #3 909.73' 495 cf 8.0" Round Pipe Storage Inside #1 L= 1,418.0' #4 912.03' 495 cf 8.0" Round Pipe Storage Inside #2 L= 1,418.0' 46,693 cf Total Available Storage Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 909.73 30,906 0 0 912.03 30,906 71,084 71,084 Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 912.03 30,906 0 0 914.03 30,906 61,812 61,812 Device Routing Invert Outlet Devices #1 Primary 909.73'12.0" Round Culvert L= 148.0' RCP, sq.cut end projecting, Ke= 0.500 Inlet / Outlet Invert= 909.73' / 908.25' S= 0.0100 '/' Cc= 0.900 n= 0.011 Concrete pipe, straight & clean, Flow Area= 0.79 sf #2 Device 1 910.53'8.0" Vert. Orifice/Grate C= 0.600 #3 Device 1 912.77'8.0" Vert. Orifice/Grate C= 0.600 #4 Discarded 909.73'0.060 in/hr Exfiltration over Surface area Phase-In= 0.01' Discarded OutFlow Max=0.04 cfs @ 10.16 hrs HW=909.74' (Free Discharge) 4=Exfiltration (Exfiltration Controls 0.04 cfs) Primary OutFlow Max=0.00 cfs @ 0.00 hrs HW=909.73' TW=894.50' (Dynamic Tailwater) 1=Culvert ( Controls 0.00 cfs) 2=Orifice/Grate ( Controls 0.00 cfs) 3=Orifice/Grate ( Controls 0.00 cfs) NOAA 24-hr A 1.10-In Equiv Rainfall=1.32"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 146HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Pond 28P: Avienda Pkwy - NW Basin Inflow Outflow Discarded Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)2 1 0 Inflow Area=2.793 ac Peak Elev=910.34' Storage=6,004 cf 2.55 cfs 0.04 cfs 0.04 cfs 0.00 cfs NOAA 24-hr A 1.10-In Equiv Rainfall=1.32"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 147HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Pond 31P: West South Basin Inflow Area = 0.754 ac, 22.84% Impervious, Inflow Depth = 0.41" for 1.10-In Equiv event Inflow = 0.33 cfs @ 12.24 hrs, Volume= 0.026 af Outflow = 0.03 cfs @ 13.48 hrs, Volume= 0.026 af, Atten= 90%, Lag= 74.5 min Discarded = 0.00 cfs @ 9.88 hrs, Volume= 0.019 af Primary = 0.03 cfs @ 13.48 hrs, Volume= 0.007 af Secondary = 0.00 cfs @ 0.00 hrs, Volume= 0.000 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 921.82' @ 13.48 hrs Surf.Area= 2,441 sf Storage= 682 cf Plug-Flow detention time= 1,281.6 min calculated for 0.026 af (100% of inflow) Center-of-Mass det. time= 1,281.7 min ( 2,098.4 - 816.7 ) Volume Invert Avail.Storage Storage Description #1 920.93' 1,671 cf Sand Setion (Prismatic) Listed below (Recalc) 5,614 cf Overall - 44 cf Embedded = 5,571 cf x 30.0% Voids #2 923.23' 366 cf Topsoil (Prismatic) Listed below (Recalc) 1,221 cf Overall x 30.0% Voids #3 923.73' 11,497 cf Open pond (Prismatic) Listed below (Recalc) #4 920.93' 44 cf 8.0" Round Pipe Storage Inside #1 L= 125.0' 13,578 cf Total Available Storage Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 920.93 2,441 0 0 923.23 2,441 5,614 5,614 Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 923.23 2,441 0 0 923.73 2,441 1,221 1,221 Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 923.73 2,441 0 0 926.60 4,878 10,503 10,503 926.70 15,000 994 11,497 Device Routing Invert Outlet Devices #1 Primary 920.93'12.0" Round Culvert L= 46.0' RCP, sq.cut end projecting, Ke= 0.500 Inlet / Outlet Invert= 920.93' / 920.80' S= 0.0028 '/' Cc= 0.900 n= 0.011 Concrete pipe, straight & clean, Flow Area= 0.79 sf #2 Device 1 921.73'8.0" Vert. Orifice/Grate C= 0.600 #3 Device 1 923.84'8.0" Vert. Orifice/Grate C= 0.600 #4 Secondary 925.60'20.0' long x 5.0' breadth Broad-Crested Rectangular Weir Head (feet) 0.20 0.40 0.60 0.80 1.00 1.20 1.40 1.60 1.80 2.00 2.50 3.00 3.50 4.00 4.50 5.00 5.50 NOAA 24-hr A 1.10-In Equiv Rainfall=1.32"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 148HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Coef. (English) 2.34 2.50 2.70 2.68 2.68 2.66 2.65 2.65 2.65 2.65 2.67 2.66 2.68 2.70 2.74 2.79 2.88 #5 Discarded 920.93'0.060 in/hr Exfiltration over Horizontal area Phase-In= 0.01' Discarded OutFlow Max=0.00 cfs @ 9.88 hrs HW=920.94' (Free Discharge) 5=Exfiltration (Exfiltration Controls 0.00 cfs) Primary OutFlow Max=0.03 cfs @ 13.48 hrs HW=921.82' TW=920.88' (Dynamic Tailwater) 1=Culvert (Passes 0.03 cfs of 1.73 cfs potential flow) 2=Orifice/Grate (Orifice Controls 0.03 cfs @ 1.02 fps) 3=Orifice/Grate ( Controls 0.00 cfs) Secondary OutFlow Max=0.00 cfs @ 0.00 hrs HW=920.93' TW=920.58' (Dynamic Tailwater) 4=Broad-Crested Rectangular Weir ( Controls 0.00 cfs) Pond 31P: West South Basin Inflow Outflow Discarded Primary Secondary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.36 0.34 0.32 0.3 0.28 0.26 0.24 0.22 0.2 0.18 0.16 0.14 0.12 0.1 0.08 0.06 0.04 0.02 0 Inflow Area=0.754 ac Peak Elev=921.82' Storage=682 cf 0.33 cfs 0.03 cfs 0.00 cfs0.03 cfs 0.00 cfs NOAA 24-hr A 1.10-In Equiv Rainfall=1.32"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 149HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Pond 32P: Drop MH [57] Hint: Peaked at 894.88' (Flood elevation advised) Inflow Area = 4.651 ac, 45.17% Impervious, Inflow Depth = 0.29" for 1.10-In Equiv event Inflow = 0.65 cfs @ 12.65 hrs, Volume= 0.111 af Outflow = 0.65 cfs @ 12.65 hrs, Volume= 0.111 af, Atten= 0%, Lag= 0.0 min Primary = 0.65 cfs @ 12.65 hrs, Volume= 0.111 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 894.88' @ 12.65 hrs Device Routing Invert Outlet Devices #1 Primary 894.50'18.0" Round Culvert L= 90.0' RCP, sq.cut end projecting, Ke= 0.500 Inlet / Outlet Invert= 894.50' / 894.00' S= 0.0056 '/' Cc= 0.900 n= 0.011 Concrete pipe, straight & clean, Flow Area= 1.77 sf Primary OutFlow Max=0.65 cfs @ 12.65 hrs HW=894.88' TW=890.03' (Dynamic Tailwater) 1=Culvert (Barrel Controls 0.65 cfs @ 2.81 fps) Pond 32P: Drop MH Inflow Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.7 0.65 0.6 0.55 0.5 0.45 0.4 0.35 0.3 0.25 0.2 0.15 0.1 0.05 0 Inflow Area=4.651 ac Peak Elev=894.88' 18.0" Round Culvert n=0.011 L=90.0' S=0.0056 '/' 0.65 cfs 0.65 cfs NOAA 24-hr A 1.10-In Equiv Rainfall=1.32"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 150HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Pond 33P: Wetland 3 Inflow Area = 5.208 ac, 12.12% Impervious, Inflow Depth = 0.39" for 1.10-In Equiv event Inflow = 2.56 cfs @ 12.16 hrs, Volume= 0.170 af Outflow = 0.38 cfs @ 12.81 hrs, Volume= 0.170 af, Atten= 85%, Lag= 38.7 min Primary = 0.38 cfs @ 12.81 hrs, Volume= 0.170 af Secondary = 0.00 cfs @ 0.00 hrs, Volume= 0.000 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 920.89' @ 12.81 hrs Surf.Area= 21,846 sf Storage= 3,352 cf Plug-Flow detention time= 142.7 min calculated for 0.170 af (100% of inflow) Center-of-Mass det. time= 151.6 min ( 967.3 - 815.7 ) Volume Invert Avail.Storage Storage Description #1 920.58' 140,121 cf Custom Stage Data (Prismatic) Listed below (Recalc) Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 920.58 100 0 0 921.00 30,000 6,321 6,321 922.00 68,200 49,100 55,421 923.00 101,200 84,700 140,121 Device Routing Invert Outlet Devices #1 Primary 920.58'12.0" Round Culvert L= 455.0' RCP, end-section conforming to fill, Ke= 0.500 Inlet / Outlet Invert= 920.58' / 911.02' S= 0.0210 '/' Cc= 0.900 n= 0.013 Concrete pipe, straight & clean, Flow Area= 0.79 sf #2 Secondary 921.90'Asymmetrical Weir, C= 3.27 Offset (feet) 0.00 19.00 40.00 50.00 76.00 103.00 Height (feet) 1.50 0.50 0.00 0.00 0.50 1.50 Primary OutFlow Max=0.38 cfs @ 12.81 hrs HW=920.89' TW=907.30' (Dynamic Tailwater) 1=Culvert (Inlet Controls 0.38 cfs @ 1.88 fps) Secondary OutFlow Max=0.00 cfs @ 0.00 hrs HW=920.58' TW=0.00' (Dynamic Tailwater) 2=Asymmetrical Weir ( Controls 0.00 cfs) NOAA 24-hr A 1.10-In Equiv Rainfall=1.32"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 151HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Pond 33P: Wetland 3 Inflow Outflow Primary Secondary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)2 1 0 Inflow Area=5.208 ac Peak Elev=920.89' Storage=3,352 cf 2.56 cfs 0.38 cfs 0.38 cfs 0.00 cfs NOAA 24-hr A 1.10-In Equiv Rainfall=1.32"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 152HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Pond 34P: West - South (existing) Inflow Area = 8.382 ac, 8.27% Impervious, Inflow Depth = 0.27" for 1.10-In Equiv event Inflow = 0.47 cfs @ 12.14 hrs, Volume= 0.186 af Outflow = 0.43 cfs @ 12.57 hrs, Volume= 0.186 af, Atten= 7%, Lag= 25.5 min Primary = 0.43 cfs @ 12.57 hrs, Volume= 0.186 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 907.30' @ 12.57 hrs Surf.Area= 0.017 ac Storage= 0.003 af Plug-Flow detention time= (not calculated: outflow precedes inflow) Center-of-Mass det. time= 5.4 min ( 961.7 - 956.3 ) Volume Invert Avail.Storage Storage Description #1 907.00' 1.603 af Custom Stage Data (Prismatic) Listed below (Recalc) Elevation Surf.Area Inc.Store Cum.Store (feet) (acres) (acre-feet) (acre-feet) 907.00 0.000 0.000 0.000 908.00 0.055 0.028 0.028 909.00 0.208 0.131 0.159 910.00 0.413 0.310 0.469 911.00 0.573 0.493 0.962 912.00 0.709 0.641 1.603 Device Routing Invert Outlet Devices #1 Primary 907.00'15.0" Round Culvert L= 48.8' RCP, end-section conforming to fill, Ke= 0.500 Inlet / Outlet Invert= 907.00' / 906.00' S= 0.0205 '/' Cc= 0.900 n= 0.013 Concrete pipe, straight & clean, Flow Area= 1.23 sf #2 Primary 911.22'Asymmetrical Weir, C= 3.27 Offset (feet) 0.00 12.00 18.00 28.00 49.00 88.00 Height (feet) 1.35 0.02 0.00 0.15 0.70 1.35 Primary OutFlow Max=0.43 cfs @ 12.57 hrs HW=907.30' TW=0.00' (Dynamic Tailwater) 1=Culvert (Inlet Controls 0.43 cfs @ 1.88 fps) 2=Asymmetrical Weir ( Controls 0.00 cfs) NOAA 24-hr A 1.10-In Equiv Rainfall=1.32"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 153HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Pond 34P: West - South (existing) Inflow Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.5 0.45 0.4 0.35 0.3 0.25 0.2 0.15 0.1 0.05 0 Inflow Area=8.382 ac Peak Elev=907.30' Storage=0.003 af 0.47 cfs 0.43 cfs NOAA 24-hr A 1.10-In Equiv Rainfall=1.32"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 154HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Pond 35P: Drop MH [57] Hint: Peaked at 894.88' (Flood elevation advised) Inflow Area = 1.357 ac, 69.40% Impervious, Inflow Depth = 0.07" for 1.10-In Equiv event Inflow = 0.02 cfs @ 15.04 hrs, Volume= 0.008 af Outflow = 0.02 cfs @ 15.04 hrs, Volume= 0.008 af, Atten= 0%, Lag= 0.0 min Primary = 0.02 cfs @ 15.04 hrs, Volume= 0.008 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 894.88' @ 15.04 hrs Device Routing Invert Outlet Devices #1 Primary 894.80'12.0" Round Culvert L= 150.0' RCP, sq.cut end projecting, Ke= 0.500 Inlet / Outlet Invert= 894.80' / 894.00' S= 0.0053 '/' Cc= 0.900 n= 0.011 Concrete pipe, straight & clean, Flow Area= 0.79 sf Primary OutFlow Max=0.02 cfs @ 15.04 hrs HW=894.88' TW=890.37' (Dynamic Tailwater) 1=Culvert (Barrel Controls 0.02 cfs @ 1.11 fps) Pond 35P: Drop MH Inflow Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.023 0.022 0.021 0.02 0.019 0.018 0.017 0.016 0.015 0.014 0.013 0.012 0.011 0.01 0.009 0.008 0.007 0.006 0.005 0.004 0.003 0.002 0.001 0 Inflow Area=1.357 ac Peak Elev=894.88' 12.0" Round Culvert n=0.011 L=150.0' S=0.0053 '/' 0.02 cfs 0.02 cfs NOAA 24-hr A 1.10-In Equiv Rainfall=1.32"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 155HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Pond 36P: Drop MH [57] Hint: Peaked at 894.50' (Flood elevation advised) Inflow Area = 2.793 ac, 66.00% Impervious, Inflow Depth = 0.00" for 1.10-In Equiv event Inflow = 0.00 cfs @ 0.00 hrs, Volume= 0.000 af Outflow = 0.00 cfs @ 0.00 hrs, Volume= 0.000 af, Atten= 0%, Lag= 0.0 min Primary = 0.00 cfs @ 0.00 hrs, Volume= 0.000 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 894.50' @ 0.00 hrs Device Routing Invert Outlet Devices #1 Primary 894.50'12.0" Round Culvert L= 100.0' RCP, sq.cut end projecting, Ke= 0.500 Inlet / Outlet Invert= 894.50' / 894.00' S= 0.0050 '/' Cc= 0.900 n= 0.011 Concrete pipe, straight & clean, Flow Area= 0.79 sf Primary OutFlow Max=0.00 cfs @ 0.00 hrs HW=894.50' TW=889.70' (Dynamic Tailwater) 1=Culvert ( Controls 0.00 cfs) Pond 36P: Drop MH Inflow Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)1 0 Inflow Area=2.793 ac Peak Elev=894.50' 12.0" Round Culvert n=0.011 L=100.0' S=0.0050 '/' 0.00 cfs 0.00 cfs NOAA 24-hr A 1.10-In Equiv Rainfall=1.32"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 156HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Pond 40.1P: South East Inflow Area = 3.753 ac, 81.66% Impervious, Inflow Depth = 0.94" for 1.10-In Equiv event Inflow = 4.79 cfs @ 12.17 hrs, Volume= 0.293 af Outflow = 0.07 cfs @ 10.07 hrs, Volume= 0.293 af, Atten= 99%, Lag= 0.0 min Discarded = 0.07 cfs @ 10.07 hrs, Volume= 0.293 af Primary = 0.00 cfs @ 0.00 hrs, Volume= 0.000 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 894.28' @ 16.95 hrs Surf.Area= 51,048 sf Storage= 9,459 cf Plug-Flow detention time= 1,220.9 min calculated for 0.293 af (100% of inflow) Center-of-Mass det. time= 1,220.9 min ( 1,999.6 - 778.7 ) Volume Invert Avail.Storage Storage Description #1 893.70' 34,978 cf Custom Stage Data (Prismatic) Listed below (Recalc) 117,410 cf Overall - 818 cf Embedded = 116,593 cf x 30.0% Voids #2 896.00' 40,511 cf Custom Stage Data (Prismatic) Listed below (Recalc) 102,096 cf Overall - 818 cf Embedded = 101,278 cf x 40.0% Voids #3 893.70' 818 cf 8.0" Round Pipe Storage Inside #1 L= 2,343.0' #4 896.00' 818 cf 8.0" Round Pipe Storage Inside #2 L= 2,343.0' 77,125 cf Total Available Storage Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 893.70 51,048 0 0 896.00 51,048 117,410 117,410 Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 896.00 51,048 0 0 898.00 51,048 102,096 102,096 Device Routing Invert Outlet Devices #1 Primary 893.70'12.0" Round Culvert L= 260.0' RCP, sq.cut end projecting, Ke= 0.500 Inlet / Outlet Invert= 893.70' / 891.88' S= 0.0070 '/' Cc= 0.900 n= 0.011 Concrete pipe, straight & clean, Flow Area= 0.79 sf #2 Device 1 894.50'8.0" Vert. Orifice/Grate C= 0.600 #3 Device 1 896.67'12.0" Vert. Orifice/Grate C= 0.600 #4 Discarded 893.70'0.060 in/hr Exfiltration over Surface area Phase-In= 0.01' Discarded OutFlow Max=0.07 cfs @ 10.07 hrs HW=893.71' (Free Discharge) 4=Exfiltration (Exfiltration Controls 0.07 cfs) Primary OutFlow Max=0.00 cfs @ 0.00 hrs HW=893.70' TW=0.00' (Dynamic Tailwater) 1=Culvert ( Controls 0.00 cfs) 2=Orifice/Grate ( Controls 0.00 cfs) 3=Orifice/Grate ( Controls 0.00 cfs) NOAA 24-hr A 1.10-In Equiv Rainfall=1.32"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 157HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Pond 40.1P: South East Inflow Outflow Discarded Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)5 4 3 2 1 0 Inflow Area=3.753 ac Peak Elev=894.28' Storage=9,459 cf 4.79 cfs 0.07 cfs 0.07 cfs 0.00 cfs NOAA 24-hr A 1.10-In Equiv Rainfall=1.32"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 158HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Pond 40.2P: South Central Inflow Area = 4.604 ac, 76.19% Impervious, Inflow Depth = 0.89" for 1.10-In Equiv event Inflow = 5.55 cfs @ 12.17 hrs, Volume= 0.341 af Outflow = 0.13 cfs @ 10.83 hrs, Volume= 0.341 af, Atten= 98%, Lag= 0.0 min Discarded = 0.13 cfs @ 10.83 hrs, Volume= 0.341 af Primary = 0.00 cfs @ 0.00 hrs, Volume= 0.000 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 895.34' @ 15.01 hrs Surf.Area= 94,313 sf Storage= 10,053 cf Plug-Flow detention time= 711.3 min calculated for 0.341 af (100% of inflow) Center-of-Mass det. time= 711.3 min ( 1,491.5 - 780.2 ) Volume Invert Avail.Storage Storage Description #1 895.00' 64,623 cf Custom Stage Data (Prismatic) Listed below (Recalc) 216,920 cf Overall - 1,511 cf Embedded = 215,409 cf x 30.0% Voids #2 897.30' 74,846 cf Custom Stage Data (Prismatic) Listed below (Recalc) 188,626 cf Overall - 1,511 cf Embedded = 187,115 cf x 40.0% Voids #3 895.00' 1,511 cf 8.0" Round Pipe Storage Inside #1 L= 4,328.0' #4 897.30' 1,511 cf 8.0" Round Pipe Storage Inside #2 L= 4,328.0' 142,490 cf Total Available Storage Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 895.00 94,313 0 0 897.30 94,313 216,920 216,920 Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 897.30 94,313 0 0 899.30 94,313 188,626 188,626 Device Routing Invert Outlet Devices #1 Primary 895.00'12.0" Round Culvert L= 250.0' RCP, sq.cut end projecting, Ke= 0.500 Inlet / Outlet Invert= 895.00' / 893.25' S= 0.0070 '/' Cc= 0.900 n= 0.011 Concrete pipe, straight & clean, Flow Area= 0.79 sf #2 Device 1 895.80'8.0" Vert. Orifice/Grate C= 0.600 #3 Device 1 897.97'8.0" Vert. Orifice/Grate C= 0.600 #4 Discarded 895.00'0.060 in/hr Exfiltration over Surface area Phase-In= 0.01' Discarded OutFlow Max=0.13 cfs @ 10.83 hrs HW=895.01' (Free Discharge) 4=Exfiltration (Exfiltration Controls 0.13 cfs) Primary OutFlow Max=0.00 cfs @ 0.00 hrs HW=895.00' TW=0.00' (Dynamic Tailwater) 1=Culvert ( Controls 0.00 cfs) 2=Orifice/Grate ( Controls 0.00 cfs) 3=Orifice/Grate ( Controls 0.00 cfs) NOAA 24-hr A 1.10-In Equiv Rainfall=1.32"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 159HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Pond 40.2P: South Central Inflow Outflow Discarded Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)6 5 4 3 2 1 0 Inflow Area=4.604 ac Peak Elev=895.34' Storage=10,053 cf 5.55 cfs 0.13 cfs 0.13 cfs 0.00 cfs NOAA 24-hr A 1.10-In Equiv Rainfall=1.32"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 160HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Pond 40.3P: South Inflow Area = 5.237 ac, 69.55% Impervious, Inflow Depth = 0.83" for 1.10-In Equiv event Inflow = 5.86 cfs @ 12.17 hrs, Volume= 0.362 af Outflow = 0.08 cfs @ 10.06 hrs, Volume= 0.362 af, Atten= 99%, Lag= 0.0 min Discarded = 0.08 cfs @ 10.06 hrs, Volume= 0.362 af Primary = 0.00 cfs @ 0.00 hrs, Volume= 0.000 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 898.11' @ 17.31 hrs Surf.Area= 60,232 sf Storage= 11,726 cf Plug-Flow detention time= 1,284.8 min calculated for 0.362 af (100% of inflow) Center-of-Mass det. time= 1,284.8 min ( 2,067.0 - 782.1 ) Volume Invert Avail.Storage Storage Description #1 897.50' 41,271 cf Custom Stage Data (Prismatic) Listed below (Recalc) 138,534 cf Overall - 965 cf Embedded = 137,569 cf x 30.0% Voids #2 899.80' 47,800 cf Custom Stage Data (Prismatic) Listed below (Recalc) 120,464 cf Overall - 965 cf Embedded = 119,499 cf x 40.0% Voids #3 897.50' 965 cf 8.0" Round Pipe Storage Inside #1 L= 2,764.0' #4 899.80' 965 cf 8.0" Round Pipe Storage Inside #2 L= 2,764.0' 91,000 cf Total Available Storage Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 897.50 60,232 0 0 899.80 60,232 138,534 138,534 Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 899.80 60,232 0 0 901.80 60,232 120,464 120,464 Device Routing Invert Outlet Devices #1 Primary 897.50'12.0" Round Culvert L= 175.0' RCP, sq.cut end projecting, Ke= 0.500 Inlet / Outlet Invert= 897.50' / 896.27' S= 0.0070 '/' Cc= 0.900 n= 0.011 Concrete pipe, straight & clean, Flow Area= 0.79 sf #2 Device 1 898.30'8.0" Vert. Orifice/Grate C= 0.600 #3 Device 1 900.47'8.0" Vert. Orifice/Grate C= 0.600 #4 Discarded 897.50'0.060 in/hr Exfiltration over Surface area Phase-In= 0.01' Discarded OutFlow Max=0.08 cfs @ 10.06 hrs HW=897.51' (Free Discharge) 4=Exfiltration (Exfiltration Controls 0.08 cfs) Primary OutFlow Max=0.00 cfs @ 0.00 hrs HW=897.50' TW=0.00' (Dynamic Tailwater) 1=Culvert ( Controls 0.00 cfs) 2=Orifice/Grate ( Controls 0.00 cfs) 3=Orifice/Grate ( Controls 0.00 cfs) NOAA 24-hr A 1.10-In Equiv Rainfall=1.32"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 161HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Pond 40.3P: South Inflow Outflow Discarded Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)6 5 4 3 2 1 0 Inflow Area=5.237 ac Peak Elev=898.11' Storage=11,726 cf 5.86 cfs 0.08 cfs 0.08 cfs 0.00 cfs NOAA 24-hr A 1.10-In Equiv Rainfall=1.32"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 162HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Pond 41.1P: South East Inflow Area = 1.607 ac, 85.30% Impervious, Inflow Depth = 0.97" for 1.10-In Equiv event Inflow = 2.13 cfs @ 12.17 hrs, Volume= 0.130 af Outflow = 0.06 cfs @ 11.04 hrs, Volume= 0.130 af, Atten= 97%, Lag= 0.0 min Discarded = 0.06 cfs @ 11.04 hrs, Volume= 0.130 af Primary = 0.00 cfs @ 0.00 hrs, Volume= 0.000 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 888.26' @ 14.53 hrs Surf.Area= 45,024 sf Storage= 3,672 cf Plug-Flow detention time= 542.0 min calculated for 0.130 af (100% of inflow) Center-of-Mass det. time= 542.1 min ( 1,319.9 - 777.9 ) Volume Invert Avail.Storage Storage Description #1 888.00' 30,850 cf Custom Stage Data (Prismatic) Listed below (Recalc) 103,555 cf Overall - 721 cf Embedded = 102,834 cf x 30.0% Voids #2 890.30' 35,731 cf Custom Stage Data (Prismatic) Listed below (Recalc) 90,048 cf Overall - 721 cf Embedded = 89,327 cf x 40.0% Voids #3 888.00' 721 cf 8.0" Round Pipe Storage Inside #1 L= 2,066.0' #4 890.30' 721 cf 8.0" Round Pipe Storage Inside #2 L= 2,066.0' 68,023 cf Total Available Storage Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 888.00 45,024 0 0 890.30 45,024 103,555 103,555 Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 890.30 45,024 0 0 892.30 45,024 90,048 90,048 Device Routing Invert Outlet Devices #1 Primary 888.00'12.0" Round Culvert L= 70.0' RCP, sq.cut end projecting, Ke= 0.500 Inlet / Outlet Invert= 888.00' / 887.51' S= 0.0070 '/' Cc= 0.900 n= 0.011 Concrete pipe, straight & clean, Flow Area= 0.79 sf #2 Device 1 888.80'8.0" Vert. Orifice/Grate C= 0.600 #3 Device 1 890.97'8.0" Vert. Orifice/Grate C= 0.600 #4 Discarded 888.00'0.060 in/hr Exfiltration over Surface area Phase-In= 0.01' Discarded OutFlow Max=0.06 cfs @ 11.04 hrs HW=888.01' (Free Discharge) 4=Exfiltration (Exfiltration Controls 0.06 cfs) Primary OutFlow Max=0.00 cfs @ 0.00 hrs HW=888.00' TW=0.00' (Dynamic Tailwater) 1=Culvert ( Controls 0.00 cfs) 2=Orifice/Grate ( Controls 0.00 cfs) 3=Orifice/Grate ( Controls 0.00 cfs) NOAA 24-hr A 1.10-In Equiv Rainfall=1.32"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 163HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Pond 41.1P: South East Inflow Outflow Discarded Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)2 1 0 Inflow Area=1.607 ac Peak Elev=888.26' Storage=3,672 cf 2.13 cfs 0.06 cfs 0.06 cfs 0.00 cfs NOAA 24-hr A 1.10-In Equiv Rainfall=1.32"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 164HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Pond 41.2P: South Central Inflow Area = 3.591 ac, 80.17% Impervious, Inflow Depth = 0.92" for 1.10-In Equiv event Inflow = 4.51 cfs @ 12.17 hrs, Volume= 0.277 af Outflow = 1.01 cfs @ 12.54 hrs, Volume= 0.277 af, Atten= 78%, Lag= 22.0 min Discarded = 0.02 cfs @ 7.96 hrs, Volume= 0.136 af Primary = 0.98 cfs @ 12.54 hrs, Volume= 0.141 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 882.77' @ 12.54 hrs Surf.Area= 16,787 sf Storage= 6,583 cf Plug-Flow detention time= 888.8 min calculated for 0.277 af (100% of inflow) Center-of-Mass det. time= 888.9 min ( 1,668.0 - 779.1 ) Volume Invert Avail.Storage Storage Description #1 881.50' 11,502 cf Custom Stage Data (Prismatic) Listed below (Recalc) 38,610 cf Overall - 269 cf Embedded = 38,341 cf x 30.0% Voids #2 883.80' 13,322 cf Custom Stage Data (Prismatic) Listed below (Recalc) 33,574 cf Overall - 269 cf Embedded = 33,305 cf x 40.0% Voids #3 881.50' 269 cf 8.0" Round Pipe Storage Inside #1 L= 770.0' #4 883.80' 269 cf 8.0" Round Pipe Storage Inside #2 L= 770.0' 25,362 cf Total Available Storage Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 881.50 16,787 0 0 883.80 16,787 38,610 38,610 Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 883.80 16,787 0 0 885.80 16,787 33,574 33,574 Device Routing Invert Outlet Devices #1 Primary 881.50'18.0" Round Culvert L= 22.0' RCP, sq.cut end projecting, Ke= 0.500 Inlet / Outlet Invert= 881.50' / 881.28' S= 0.0100 '/' Cc= 0.900 n= 0.011 Concrete pipe, straight & clean, Flow Area= 1.77 sf #2 Device 1 882.30'15.0" Vert. Orifice/Grate C= 0.600 #3 Device 1 884.47'18.0" Vert. Orifice/Grate C= 0.600 #4 Discarded 881.50'0.060 in/hr Exfiltration over Surface area Phase-In= 0.01' Discarded OutFlow Max=0.02 cfs @ 7.96 hrs HW=881.51' (Free Discharge) 4=Exfiltration (Exfiltration Controls 0.02 cfs) Primary OutFlow Max=0.98 cfs @ 12.54 hrs HW=882.77' TW=0.00' (Dynamic Tailwater) 1=Culvert (Passes 0.98 cfs of 5.27 cfs potential flow) 2=Orifice/Grate (Orifice Controls 0.98 cfs @ 2.33 fps) 3=Orifice/Grate ( Controls 0.00 cfs) NOAA 24-hr A 1.10-In Equiv Rainfall=1.32"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 165HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Pond 41.2P: South Central Inflow Outflow Discarded Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)5 4 3 2 1 0 Inflow Area=3.591 ac Peak Elev=882.77' Storage=6,583 cf 4.51 cfs 1.01 cfs 0.02 cfs 0.98 cfs NOAA 24-hr A 1.10-In Equiv Rainfall=1.32"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 166HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Pond 41.3P: South West Inflow Area = 0.686 ac, 93.81% Impervious, Inflow Depth = 1.05" for 1.10-In Equiv event Inflow = 0.98 cfs @ 12.17 hrs, Volume= 0.060 af Outflow = 0.03 cfs @ 11.08 hrs, Volume= 0.060 af, Atten= 97%, Lag= 0.0 min Discarded = 0.03 cfs @ 11.08 hrs, Volume= 0.060 af Primary = 0.00 cfs @ 0.00 hrs, Volume= 0.000 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 889.99' @ 14.36 hrs Surf.Area= 22,024 sf Storage= 1,676 cf Plug-Flow detention time= 503.7 min calculated for 0.060 af (100% of inflow) Center-of-Mass det. time= 503.7 min ( 1,279.7 - 776.0 ) Volume Invert Avail.Storage Storage Description #1 889.75' 15,091 cf Custom Stage Data (Prismatic) Listed below (Recalc) 50,655 cf Overall - 353 cf Embedded = 50,303 cf x 30.0% Voids #2 892.05' 17,478 cf Custom Stage Data (Prismatic) Listed below (Recalc) 44,048 cf Overall - 353 cf Embedded = 43,695 cf x 40.0% Voids #3 889.75' 353 cf 8.0" Round Pipe Storage Inside #1 L= 1,010.0' #4 892.05' 353 cf 8.0" Round Pipe Storage Inside #2 L= 1,010.0' 33,274 cf Total Available Storage Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 889.75 22,024 0 0 892.05 22,024 50,655 50,655 Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 892.05 22,024 0 0 894.05 22,024 44,048 44,048 Device Routing Invert Outlet Devices #1 Primary 889.75'12.0" Round Culvert L= 45.0' RCP, sq.cut end projecting, Ke= 0.500 Inlet / Outlet Invert= 889.75' / 889.43' S= 0.0071 '/' Cc= 0.900 n= 0.011 Concrete pipe, straight & clean, Flow Area= 0.79 sf #2 Device 1 890.55'8.0" Vert. Orifice/Grate C= 0.600 #3 Device 1 892.72'8.0" Vert. Orifice/Grate C= 0.600 #4 Discarded 889.75'0.060 in/hr Exfiltration over Surface area Phase-In= 0.01' Discarded OutFlow Max=0.03 cfs @ 11.08 hrs HW=889.76' (Free Discharge) 4=Exfiltration (Exfiltration Controls 0.03 cfs) Primary OutFlow Max=0.00 cfs @ 0.00 hrs HW=889.75' TW=0.00' (Dynamic Tailwater) 1=Culvert ( Controls 0.00 cfs) 2=Orifice/Grate ( Controls 0.00 cfs) 3=Orifice/Grate ( Controls 0.00 cfs) NOAA 24-hr A 1.10-In Equiv Rainfall=1.32"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 167HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Pond 41.3P: South West Inflow Outflow Discarded Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)1 0 Inflow Area=0.686 ac Peak Elev=889.99' Storage=1,676 cf 0.98 cfs 0.03 cfs 0.03 cfs 0.00 cfs NOAA 24-hr A 1.10-In Equiv Rainfall=1.32"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 168HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Pond 44P: Wetland 4 Inflow Area = 24.628 ac, 36.70% Impervious, Inflow Depth = 0.03" for 1.10-In Equiv event Inflow = 0.88 cfs @ 12.26 hrs, Volume= 0.058 af Outflow = 0.84 cfs @ 12.30 hrs, Volume= 0.057 af, Atten= 4%, Lag= 2.3 min Primary = 0.84 cfs @ 12.30 hrs, Volume= 0.057 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 884.19' @ 12.30 hrs Surf.Area= 1,289 sf Storage= 203 cf Plug-Flow detention time= 24.6 min calculated for 0.057 af (99% of inflow) Center-of-Mass det. time= 18.4 min ( 866.2 - 847.8 ) Volume Invert Avail.Storage Storage Description #1 884.00' 37,633 cf Custom Stage Data (Prismatic) Listed below (Recalc) Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 884.00 870 0 0 884.50 1,980 713 713 885.00 3,500 1,370 2,083 886.00 7,800 5,650 7,733 887.00 14,000 10,900 18,633 888.00 24,000 19,000 37,633 Device Routing Invert Outlet Devices #1 Primary 884.03'Asymmetrical Weir, C= 3.27 Offset (feet) 0.00 51.00 133.60 176.00 217.30 239.00 Elev. (feet) 889.78 886.05 884.03 885.84 889.00 889.78 Primary OutFlow Max=0.84 cfs @ 12.30 hrs HW=884.19' TW=0.00' (Dynamic Tailwater) 1=Asymmetrical Weir (Weir Controls 0.84 cfs @ 0.52 fps) NOAA 24-hr A 1.10-In Equiv Rainfall=1.32"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 169HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Pond 44P: Wetland 4 Inflow Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.95 0.9 0.85 0.8 0.75 0.7 0.65 0.6 0.55 0.5 0.45 0.4 0.35 0.3 0.25 0.2 0.15 0.1 0.05 0 Inflow Area=24.628 ac Peak Elev=884.19' Storage=203 cf 0.88 cfs 0.84 cfs NOAA 24-hr A 1.10-In Equiv Rainfall=1.32"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 170HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Pond 46P: Triangle Basin Inflow Area = 2.229 ac, 19.60% Impervious, Inflow Depth = 0.38" for 1.10-In Equiv event Inflow = 0.95 cfs @ 12.22 hrs, Volume= 0.070 af Outflow = 0.88 cfs @ 12.26 hrs, Volume= 0.070 af, Atten= 7%, Lag= 2.7 min Discarded = 0.00 cfs @ 7.15 hrs, Volume= 0.013 af Primary = 0.88 cfs @ 12.26 hrs, Volume= 0.058 af Secondary = 0.00 cfs @ 0.00 hrs, Volume= 0.000 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 885.65' @ 12.26 hrs Surf.Area= 1,586 sf Storage= 626 cf Plug-Flow detention time= 318.6 min calculated for 0.070 af (100% of inflow) Center-of-Mass det. time= 318.7 min ( 1,138.0 - 819.3 ) Volume Invert Avail.Storage Storage Description #1 884.37' 1,087 cf Sand section (Prismatic) Listed below (Recalc) 3,648 cf Overall - 24 cf Embedded = 3,623 cf x 30.0% Voids #2 884.37' 24 cf 8.0" Round Pipe Storage Inside #1 L= 70.0' #3 886.67' 159 cf Topsoil (Prismatic) Listed below (Recalc) 793 cf Overall x 20.0% Voids #4 887.17' 14,801 cf Open pond (Prismatic) Listed below (Recalc) 16,071 cf Total Available Storage Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 884.37 1,586 0 0 886.67 1,586 3,648 3,648 Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 886.67 1,586 0 0 887.17 1,586 793 793 Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 887.17 1,586 0 0 890.90 6,350 14,801 14,801 Device Routing Invert Outlet Devices #1 Primary 884.37'18.0" Round Culvert L= 125.0' RCP, sq.cut end projecting, Ke= 0.500 Inlet / Outlet Invert= 884.37' / 884.00' S= 0.0030 '/' Cc= 0.900 n= 0.011 Concrete pipe, straight & clean, Flow Area= 1.77 sf #2 Device 1 885.17'12.0" Vert. Orifice/Grate C= 0.600 #3 Device 1 887.41'12.0" Vert. Orifice/Grate C= 0.600 #4 Secondary 890.75'20.0' long x 5.0' breadth Broad-Crested Rectangular Weir Head (feet) 0.20 0.40 0.60 0.80 1.00 1.20 1.40 1.60 1.80 2.00 2.50 3.00 3.50 4.00 4.50 5.00 5.50 Coef. (English) 2.34 2.50 2.70 2.68 2.68 2.66 2.65 2.65 2.65 NOAA 24-hr A 1.10-In Equiv Rainfall=1.32"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 171HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC 2.65 2.67 2.66 2.68 2.70 2.74 2.79 2.88 #5 Discarded 884.37'0.060 in/hr Exfiltration over Surface area Phase-In= 0.01' Discarded OutFlow Max=0.00 cfs @ 7.15 hrs HW=884.38' (Free Discharge) 5=Exfiltration (Exfiltration Controls 0.00 cfs) Primary OutFlow Max=0.88 cfs @ 12.26 hrs HW=885.65' TW=0.00' (Dynamic Tailwater) 1=Culvert (Passes 0.88 cfs of 4.70 cfs potential flow) 2=Orifice/Grate (Orifice Controls 0.88 cfs @ 2.36 fps) 3=Orifice/Grate ( Controls 0.00 cfs) Secondary OutFlow Max=0.00 cfs @ 0.00 hrs HW=884.37' TW=0.00' (Dynamic Tailwater) 4=Broad-Crested Rectangular Weir ( Controls 0.00 cfs) Pond 46P: Triangle Basin Inflow Outflow Discarded Primary Secondary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)1 0 Inflow Area=2.229 ac Peak Elev=885.65' Storage=626 cf 0.95 cfs 0.88 cfs 0.00 cfs 0.88 cfs 0.00 cfs NOAA 24-hr A 1.10-In Equiv Rainfall=1.32"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 172HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Pond 47P: Bluff Creek - West Basin Inflow Area = 7.031 ac, 70.52% Impervious, Inflow Depth = 0.78" for 1.10-In Equiv event Inflow = 7.75 cfs @ 12.14 hrs, Volume= 0.454 af Outflow = 0.15 cfs @ 10.97 hrs, Volume= 0.454 af, Atten= 98%, Lag= 0.0 min Discarded = 0.15 cfs @ 10.97 hrs, Volume= 0.454 af Primary = 0.00 cfs @ 0.00 hrs, Volume= 0.000 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 908.61' @ 15.98 hrs Surf.Area= 107,300 sf Storage= 14,011 cf Plug-Flow detention time= 895.5 min calculated for 0.454 af (100% of inflow) Center-of-Mass det. time= 895.5 min ( 1,688.0 - 792.5 ) Volume Invert Avail.Storage Storage Description #1 908.20' 73,521 cf Custom Stage Data (Prismatic) Listed below (Recalc) 246,790 cf Overall - 1,719 cf Embedded = 245,071 cf x 30.0% Voids #2 910.50' 85,152 cf Custom Stage Data (Prismatic) Listed below (Recalc) 214,600 cf Overall - 1,719 cf Embedded = 212,881 cf x 40.0% Voids #3 908.20' 1,719 cf 8.0" Round Pipe Storage Inside #1 L= 4,925.0' #4 910.50' 1,719 cf 8.0" Round Pipe Storage Inside #2 L= 4,925.0' 162,112 cf Total Available Storage Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 908.20 107,300 0 0 910.50 107,300 246,790 246,790 Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 910.50 107,300 0 0 912.50 107,300 214,600 214,600 Device Routing Invert Outlet Devices #1 Primary 908.20'12.0" Round Culvert L= 307.0' RCP, square edge headwall, Ke= 0.500 Inlet / Outlet Invert= 908.20' / 905.13' S= 0.0100 '/' Cc= 0.900 n= 0.011 Concrete pipe, straight & clean, Flow Area= 0.79 sf #2 Device 1 909.00'8.0" Vert. Orifice/Grate C= 0.600 #3 Device 1 911.24'8.0" Vert. Orifice/Grate C= 0.600 #4 Discarded 908.20'0.060 in/hr Exfiltration over Surface area Phase-In= 0.01' Discarded OutFlow Max=0.15 cfs @ 10.97 hrs HW=908.21' (Free Discharge) 4=Exfiltration (Exfiltration Controls 0.15 cfs) Primary OutFlow Max=0.00 cfs @ 0.00 hrs HW=908.20' TW=0.00' (Dynamic Tailwater) 1=Culvert ( Controls 0.00 cfs) 2=Orifice/Grate ( Controls 0.00 cfs) 3=Orifice/Grate ( Controls 0.00 cfs) NOAA 24-hr A 1.10-In Equiv Rainfall=1.32"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 173HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Pond 47P: Bluff Creek - West Basin Inflow Outflow Discarded Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)8 7 6 5 4 3 2 1 0 Inflow Area=7.031 ac Peak Elev=908.61' Storage=14,011 cf 7.75 cfs 0.15 cfs 0.15 cfs 0.00 cfs NOAA 24-hr A 1.10-In Equiv Rainfall=1.32"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 174HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Pond 48P: Bluff Creek - East Basin Inflow Area = 3.441 ac, 81.34% Impervious, Inflow Depth = 0.94" for 1.10-In Equiv event Inflow = 5.33 cfs @ 12.12 hrs, Volume= 0.268 af Outflow = 0.07 cfs @ 10.18 hrs, Volume= 0.268 af, Atten= 99%, Lag= 0.0 min Discarded = 0.07 cfs @ 10.18 hrs, Volume= 0.268 af Primary = 0.00 cfs @ 0.00 hrs, Volume= 0.000 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 895.86' @ 16.36 hrs Surf.Area= 52,085 sf Storage= 8,470 cf Plug-Flow detention time= 1,075.9 min calculated for 0.268 af (100% of inflow) Center-of-Mass det. time= 1,076.0 min ( 1,850.1 - 774.2 ) Volume Invert Avail.Storage Storage Description #1 895.35' 35,688 cf Custom Stage Data (Prismatic) Listed below (Recalc) 119,795 cf Overall - 834 cf Embedded = 118,961 cf x 30.0% Voids #2 897.65' 41,334 cf Custom Stage Data (Prismatic) Listed below (Recalc) 104,170 cf Overall - 834 cf Embedded = 103,336 cf x 40.0% Voids #3 895.35' 834 cf 8.0" Round Pipe Storage Inside #1 L= 2,390.0' #4 897.65' 834 cf 8.0" Round Pipe Storage Inside #2 L= 2,390.0' 78,691 cf Total Available Storage Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 895.35 52,085 0 0 897.65 52,085 119,795 119,795 Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 897.65 52,085 0 0 899.65 52,085 104,170 104,170 Device Routing Invert Outlet Devices #1 Primary 895.35'12.0" Round Culvert L= 637.0' RCP, square edge headwall, Ke= 0.500 Inlet / Outlet Invert= 895.35' / 888.98' S= 0.0100 '/' Cc= 0.900 n= 0.011 Concrete pipe, straight & clean, Flow Area= 0.79 sf #2 Device 1 896.15'8.0" Vert. Orifice/Grate C= 0.600 #3 Device 1 898.39'8.0" Vert. Orifice/Grate C= 0.600 #4 Discarded 895.35'0.060 in/hr Exfiltration over Surface area Phase-In= 0.01' Discarded OutFlow Max=0.07 cfs @ 10.18 hrs HW=895.36' (Free Discharge) 4=Exfiltration (Exfiltration Controls 0.07 cfs) Primary OutFlow Max=0.00 cfs @ 0.00 hrs HW=895.35' TW=0.00' (Dynamic Tailwater) 1=Culvert ( Controls 0.00 cfs) 2=Orifice/Grate ( Controls 0.00 cfs) 3=Orifice/Grate ( Controls 0.00 cfs) NOAA 24-hr A 1.10-In Equiv Rainfall=1.32"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 175HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Pond 48P: Bluff Creek - East Basin Inflow Outflow Discarded Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)5 4 3 2 1 0 Inflow Area=3.441 ac Peak Elev=895.86' Storage=8,470 cf 5.33 cfs 0.07 cfs 0.07 cfs 0.00 cfs NOAA 24-hr A 1.10-In Equiv Rainfall=1.32"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 176HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Pond 48P(2): Bluff Creek - East Basin Inflow Area = 2.152 ac, 68.04% Impervious, Inflow Depth = 0.82" for 1.10-In Equiv event Inflow = 2.36 cfs @ 12.17 hrs, Volume= 0.146 af Outflow = 0.03 cfs @ 10.07 hrs, Volume= 0.146 af, Atten= 99%, Lag= 0.0 min Discarded = 0.03 cfs @ 10.07 hrs, Volume= 0.146 af Primary = 0.00 cfs @ 0.00 hrs, Volume= 0.000 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 896.36' @ 17.31 hrs Surf.Area= 24,429 sf Storage= 4,732 cf Plug-Flow detention time= 1,279.3 min calculated for 0.146 af (100% of inflow) Center-of-Mass det. time= 1,279.3 min ( 2,061.9 - 782.6 ) Volume Invert Avail.Storage Storage Description #1 895.75' 16,739 cf Custom Stage Data (Prismatic) Listed below (Recalc) 56,187 cf Overall - 391 cf Embedded = 55,795 cf x 30.0% Voids #2 898.05' 19,387 cf Custom Stage Data (Prismatic) Listed below (Recalc) 48,858 cf Overall - 391 cf Embedded = 48,467 cf x 40.0% Voids #3 895.75' 391 cf 8.0" Round Pipe Storage Inside #1 L= 1,121.0' #4 898.05' 391 cf 8.0" Round Pipe Storage Inside #2 L= 1,121.0' 36,908 cf Total Available Storage Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 895.75 24,429 0 0 898.05 24,429 56,187 56,187 Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 898.05 24,429 0 0 900.05 24,429 48,858 48,858 Device Routing Invert Outlet Devices #1 Primary 895.75'8.0" Round Culvert L= 50.0' RCP, square edge headwall, Ke= 0.500 Inlet / Outlet Invert= 895.75' / 895.25' S= 0.0100 '/' Cc= 0.900 n= 0.011 Concrete pipe, straight & clean, Flow Area= 0.35 sf #2 Device 1 896.55'8.0" Vert. Orifice/Grate C= 0.600 #3 Device 1 898.79'8.0" Vert. Orifice/Grate C= 0.600 #4 Discarded 895.75'0.060 in/hr Exfiltration over Surface area Phase-In= 0.01' Discarded OutFlow Max=0.03 cfs @ 10.07 hrs HW=895.76' (Free Discharge) 4=Exfiltration (Exfiltration Controls 0.03 cfs) Primary OutFlow Max=0.00 cfs @ 0.00 hrs HW=895.75' TW=0.00' (Dynamic Tailwater) 1=Culvert ( Controls 0.00 cfs) 2=Orifice/Grate ( Controls 0.00 cfs) 3=Orifice/Grate ( Controls 0.00 cfs) NOAA 24-hr A 1.10-In Equiv Rainfall=1.32"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 177HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Pond 48P(2): Bluff Creek - East Basin Inflow Outflow Discarded Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)2 1 0 Inflow Area=2.152 ac Peak Elev=896.36' Storage=4,732 cf 2.36 cfs 0.03 cfs 0.03 cfs 0.00 cfs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 178HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Time span=0.00-360.00 hrs, dt=0.01 hrs, 36001 points Runoff by SCS TR-20 method, UH=SCS, Weighted-Q Reach routing by Dyn-Stor-Ind method - Pond routing by Dyn-Stor-Ind method Runoff Area=228,234 sf 16.43% Impervious Runoff Depth=1.40"Subcatchment 21S: Direct to 21P Tc=10.0 min CN=WQ Runoff=10.27 cfs 0.610 af Runoff Area=10,548 sf 0.00% Impervious Runoff Depth=1.04"Subcatchment 22oS: From Lyman Flow Length=57' Slope=0.3330 '/' Tc=5.0 min CN=78 Runoff=0.46 cfs 0.021 af Runoff Area=41,671 sf 0.00% Impervious Runoff Depth=1.15"Subcatchment 22S: Direct to Wetland 6 Tc=5.0 min CN=80 Runoff=2.05 cfs 0.092 af Runoff Area=59,105 sf 69.40% Impervious Runoff Depth=2.18"Subcatchment 24S: Northwest Tc=10.0 min CN=WQ Runoff=4.00 cfs 0.247 af Runoff Area=202,586 sf 45.17% Impervious Runoff Depth=1.82"Subcatchment 25S: West North Tc=10.0 min CN=WQ Runoff=11.60 cfs 0.707 af Runoff Area=121,658 sf 66.00% Impervious Runoff Depth=2.13"Subcatchment 28S: Avienda Pkwy - NW Tc=15.0 min CN=WQ Runoff=6.64 cfs 0.497 af Runoff Area=1,162 sf 100.00% Impervious Runoff Depth=2.64"Subcatchment 29oS: North Offsite Tc=5.0 min CN=98 Runoff=0.12 cfs 0.006 af Runoff Area=32,839 sf 22.84% Impervious Runoff Depth=1.49"Subcatchment 31S: West Central Flow Length=360' Slope=0.0200 '/' Tc=14.7 min UI Adjusted CN=WQ Runoff=1.31 cfs 0.094 af Runoff Area=115,865 sf 17.26% Impervious Runoff Depth=1.45"Subcatchment 33oS: Offsite West - North Flow Length=431' Tc=7.3 min UI Adjusted CN=WQ Runoff=6.01 cfs 0.322 af Runoff Area=78,153 sf 0.00% Impervious Runoff Depth=1.63"Subcatchment 33S: Direct to Wetland 3 Tc=12.0 min CN=WQ Runoff=3.78 cfs 0.244 af Runoff Area=25,470 sf 19.98% Impervious Runoff Depth=1.45"Subcatchment 34dS: Offsite West Direct Tc=10.0 min CN=WQ Runoff=1.18 cfs 0.071 af Runoff Area=32,710 sf 8.25% Impervious Runoff Depth=1.20"Subcatchment 34oS: Offsite to West South Flow Length=37' Slope=0.1620 '/' Tc=5.0 min UI Adjusted CN=WQ Runoff=1.64 cfs 0.075 af Runoff Area=2.423 ac 0.00% Impervious Runoff Depth=0.16"Subcatchment 34S: West Woods Flow Length=268' Tc=11.1 min CN=55 Runoff=0.15 cfs 0.033 af Runoff Area=3.790 ac 0.00% Impervious Runoff Depth=0.16"Subcatchment 35S: Southwest Flow Length=270' Tc=18.3 min CN=55 Runoff=0.22 cfs 0.051 af Runoff Area=1,628 sf 100.00% Impervious Runoff Depth=2.64"Subcatchment 36oS: Southwest Offsite Tc=5.0 min CN=98 Runoff=0.17 cfs 0.008 af Runoff Area=163,468 sf 81.66% Impervious Runoff Depth=2.37"Subcatchment 40.1S: South - East Tc=10.0 min CN=WQ Runoff=11.92 cfs 0.740 af MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 179HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Runoff Area=200,567 sf 76.19% Impervious Runoff Depth=2.29"Subcatchment 40.2S: South - Central Tc=10.0 min CN=WQ Runoff=14.15 cfs 0.877 af Runoff Area=228,145 sf 69.55% Impervious Runoff Depth=2.19"Subcatchment 40.3S: South - West Tc=10.0 min CN=WQ Runoff=15.44 cfs 0.954 af Runoff Area=69,984 sf 85.30% Impervious Runoff Depth=2.42"Subcatchment 41.1S: South - East Tc=10.0 min CN=WQ Runoff=5.21 cfs 0.324 af Runoff Area=156,419 sf 80.17% Impervious Runoff Depth=2.34"Subcatchment 41.2S: South - Central Tc=10.0 min CN=WQ Runoff=11.30 cfs 0.702 af Runoff Area=29,884 sf 93.81% Impervious Runoff Depth=2.55"Subcatchment 41.3S: South - west Tc=10.0 min CN=WQ Runoff=2.33 cfs 0.146 af Runoff Area=41,871 sf 0.00% Impervious Runoff Depth=1.15"Subcatchment 42.1S: South Tc=5.0 min CN=80 Runoff=2.06 cfs 0.092 af Runoff Area=24,525 sf 0.00% Impervious Runoff Depth=1.15"Subcatchment 42.2S: Southeast Tc=5.0 min CN=80 Runoff=1.20 cfs 0.054 af Runoff Area=3.222 ac 0.00% Impervious Runoff Depth=0.16"Subcatchment 43.1S: East Woods Flow Length=530' Tc=15.2 min CN=55 Runoff=0.19 cfs 0.043 af Runoff Area=1.862 ac 0.00% Impervious Runoff Depth=0.16"Subcatchment 43.2S: Northeast Woods Flow Length=623' Tc=19.5 min CN=55 Runoff=0.11 cfs 0.025 af Runoff Area=441,314 sf 0.00% Impervious Runoff Depth=0.16"Subcatchment 44S: North Woods Flow Length=599' Tc=16.5 min CN=55 Runoff=0.60 cfs 0.136 af Runoff Area=206,303 sf 65.51% Impervious Runoff Depth=2.05"Subcatchment 45S: Central - West Tc=10.0 min CN=WQ Runoff=13.75 cfs 0.811 af Runoff Area=97,082 sf 19.60% Impervious Runoff Depth=1.44"Subcatchment 46S: South Townhomes Flow Length=701' Tc=12.6 min CN=WQ Runoff=4.04 cfs 0.268 af Runoff Area=2.295 ac 80.87% Impervious Runoff Depth=2.35"Subcatchment 47S: Bluff Creek Blvd - West Tc=5.0 min CN=WQ Runoff=9.21 cfs 0.450 af Runoff Area=93,721 sf 68.04% Impervious Runoff Depth=2.16"Subcatchment 48.1S: Direct to 48P (2) Tc=10.0 min CN=WQ Runoff=6.28 cfs 0.388 af Runoff Area=3.441 ac 81.34% Impervious Runoff Depth=2.36"Subcatchment 48S: Bluff Creek Blvd - East Tc=5.0 min CN=WQ Runoff=13.85 cfs 0.677 af Inflow=4.14 cfs 1.359 afReach 20R: Northwest Drainage Outflow=4.14 cfs 1.359 af Avg. Flow Depth=0.39' Max Vel=0.73 fps Inflow=4.15 cfs 1.359 afReach 21R: Lower Wetland 6 n=0.050 L=187.0' S=0.0053 '/' Capacity=3,072.14 cfs Outflow=4.14 cfs 1.359 af MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 180HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Inflow=2.99 cfs 0.877 afReach 30R: SW Drainage Outflow=2.99 cfs 0.877 af Inflow=1.19 cfs 0.122 afReach 35R: Direct Runoff Outflow=1.19 cfs 0.122 af Inflow=11.37 cfs 2.641 afReach 40R: South Drainage Outflow=11.37 cfs 2.641 af Inflow=6.22 cfs 0.714 afReach 42.1R: South Outflow=6.22 cfs 0.714 af Inflow=1.94 cfs 0.749 afReach 42.2R: Southeast Outflow=1.94 cfs 0.749 af Inflow=4.03 cfs 1.134 afReach 44R: Wetland 4 Channel Outflow=4.03 cfs 1.134 af Inflow=3.82 cfs 0.973 afReach 48R: Development to Wetland 4 Outflow=3.82 cfs 0.973 af Inflow=15.73 cfs 4.877 afReach 50R: Bluff Creek Drainage Outflow=15.73 cfs 4.877 af Peak Elev=892.06' Storage=26,750 cf Inflow=16.10 cfs 1.566 afPond 21P: North Basin Discarded=0.10 cfs 0.326 af Primary=3.90 cfs 1.240 af Secondary=0.00 cfs 0.000 af Outflow=4.01 cfs 1.566 af Peak Elev=914.36' Storage=5,281 cf Inflow=4.00 cfs 0.247 afPond 24P: Northwest Basin Discarded=0.02 cfs 0.093 af Primary=1.10 cfs 0.153 af Outflow=1.12 cfs 0.247 af Peak Elev=914.80' Storage=10,324 cf Inflow=11.60 cfs 0.707 afPond 25P: West - North Discarded=0.02 cfs 0.135 af Primary=6.77 cfs 0.572 af Outflow=6.79 cfs 0.707 af Peak Elev=911.07' Storage=12,815 cf Inflow=6.64 cfs 0.497 afPond 28P: Avienda Pkwy - NW Basin Discarded=0.04 cfs 0.266 af Primary=0.77 cfs 0.230 af Outflow=0.81 cfs 0.497 af Peak Elev=922.40' Storage=1,110 cf Inflow=1.31 cfs 0.094 afPond 31P: West South Basin Discarded=0.00 cfs 0.020 af Primary=0.98 cfs 0.073 af Secondary=0.00 cfs 0.000 af Outflow=0.99 cfs 0.094 af Peak Elev=895.98' Inflow=6.77 cfs 0.572 afPond 32P: Drop MH 18.0" Round Culvert n=0.011 L=90.0' S=0.0056 '/' Outflow=6.77 cfs 0.572 af Peak Elev=921.20' Storage=13,236 cf Inflow=9.44 cfs 0.639 afPond 33P: Wetland 3 Primary=1.39 cfs 0.639 af Secondary=0.00 cfs 0.000 af Outflow=1.39 cfs 0.639 af Peak Elev=907.65' Storage=0.011 af Inflow=2.19 cfs 0.747 afPond 34P: West - South (existing) Outflow=1.75 cfs 0.747 af Peak Elev=895.38' Inflow=1.10 cfs 0.153 afPond 35P: Drop MH 12.0" Round Culvert n=0.011 L=150.0' S=0.0053 '/' Outflow=1.10 cfs 0.153 af MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 181HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Peak Elev=894.99' Inflow=0.77 cfs 0.230 afPond 36P: Drop MH 12.0" Round Culvert n=0.011 L=100.0' S=0.0050 '/' Outflow=0.77 cfs 0.230 af Peak Elev=895.01' Storage=20,705 cf Inflow=11.92 cfs 0.740 afPond 40.1P: South East Discarded=0.07 cfs 0.448 af Primary=0.71 cfs 0.292 af Outflow=0.78 cfs 0.740 af Peak Elev=895.96' Storage=28,248 cf Inflow=14.15 cfs 0.877 afPond 40.2P: South Central Discarded=0.13 cfs 0.810 af Primary=0.09 cfs 0.067 af Outflow=0.22 cfs 0.877 af Peak Elev=898.92' Storage=26,423 cf Inflow=15.44 cfs 0.954 afPond 40.3P: South Discarded=0.08 cfs 0.538 af Primary=0.91 cfs 0.417 af Outflow=1.00 cfs 0.954 af Peak Elev=888.74' Storage=10,444 cf Inflow=5.21 cfs 0.324 afPond 41.1P: South East Discarded=0.06 cfs 0.324 af Primary=0.00 cfs 0.000 af Outflow=0.06 cfs 0.324 af Peak Elev=883.79' Storage=11,745 cf Inflow=11.30 cfs 0.702 afPond 41.2P: South Central Discarded=0.02 cfs 0.146 af Primary=5.51 cfs 0.555 af Outflow=5.53 cfs 0.702 af Peak Elev=890.41' Storage=4,610 cf Inflow=2.33 cfs 0.146 afPond 41.3P: South West Discarded=0.03 cfs 0.146 af Primary=0.00 cfs 0.000 af Outflow=0.03 cfs 0.146 af Peak Elev=884.33' Storage=401 cf Inflow=4.01 cfs 1.110 afPond 44P: Wetland 4 Outflow=4.00 cfs 1.109 af Peak Elev=886.61' Storage=1,083 cf Inflow=4.04 cfs 0.268 afPond 46P: Triangle Basin Discarded=0.00 cfs 0.013 af Primary=3.67 cfs 0.255 af Secondary=0.00 cfs 0.000 af Outflow=3.67 cfs 0.268 af Peak Elev=909.38' Storage=39,068 cf Inflow=20.85 cfs 1.261 afPond 47P: Bluff Creek - West Basin Discarded=0.15 cfs 0.959 af Primary=0.42 cfs 0.302 af Outflow=0.57 cfs 1.261 af Peak Elev=896.56' Storage=19,491 cf Inflow=13.85 cfs 0.677 afPond 48P: Bluff Creek - East Basin Discarded=0.07 cfs 0.454 af Primary=0.49 cfs 0.223 af Outflow=0.56 cfs 0.677 af Peak Elev=897.06' Storage=9,848 cf Inflow=6.28 cfs 0.388 afPond 48P(2): Bluff Creek - East Basin Discarded=0.03 cfs 0.208 af Primary=0.69 cfs 0.180 af Outflow=0.72 cfs 0.388 af Total Runoff Area = 79.129 ac Runoff Volume = 9.766 af Average Runoff Depth = 1.48" 60.33% Pervious = 47.742 ac 39.67% Impervious = 31.387 ac MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 182HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 21S: Direct to 21P Runoff = 10.27 cfs @ 12.14 hrs, Volume= 0.610 af, Depth= 1.40" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Area (sf) CN Description 37,500 98 Paved parking, HSG D 190,734 80 >75% Grass cover, Good, HSG D 228,234 Weighted Average 190,734 80 83.57% Pervious Area 37,500 98 16.43% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 10.0 Direct Entry, Subcatchment 21S: Direct to 21P Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)11 10 9 8 7 6 5 4 3 2 1 0 MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Runoff Area=228,234 sf Runoff Volume=0.610 af Runoff Depth=1.40" Tc=10.0 min CN=WQ 10.27 cfs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 183HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 22oS: From Lyman Runoff = 0.46 cfs @ 12.08 hrs, Volume= 0.021 af, Depth= 1.04" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Area (sf) CN Description 10,548 78 Meadow, non-grazed, HSG D 10,548 78 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 2.1 57 0.3330 0.44 Sheet Flow, Grass: Short n= 0.150 P2= 2.87" 2.9 Direct Entry, Make up to 5 minutes 5.0 57 Total Subcatchment 22oS: From Lyman Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.5 0.48 0.46 0.44 0.42 0.4 0.38 0.36 0.34 0.32 0.3 0.28 0.26 0.24 0.22 0.2 0.18 0.16 0.14 0.12 0.1 0.08 0.06 0.04 0.02 0 MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Runoff Area=10,548 sf Runoff Volume=0.021 af Runoff Depth=1.04" Flow Length=57' Slope=0.3330 '/' Tc=5.0 min CN=78 0.46 cfs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 184HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 22S: Direct to Wetland 6 Runoff = 2.05 cfs @ 12.08 hrs, Volume= 0.092 af, Depth= 1.15" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Area (sf) CN Description 41,671 80 >75% Grass cover, Good, HSG D 41,671 80 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 5.0 Direct Entry, Subcatchment 22S: Direct to Wetland 6 Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)2 1 0 MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Runoff Area=41,671 sf Runoff Volume=0.092 af Runoff Depth=1.15" Tc=5.0 min CN=80 2.05 cfs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 185HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 24S: Northwest Runoff = 4.00 cfs @ 12.13 hrs, Volume= 0.247 af, Depth= 2.18" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Area (sf) CN Description 18,089 80 >75% Grass cover, Good, HSG D * 41,016 98 Paved parking and roofs, HSG D 59,105 Weighted Average 18,089 80 30.60% Pervious Area 41,016 98 69.40% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 10.0 Direct Entry, Subcatchment 24S: Northwest Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)4 3 2 1 0 MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Runoff Area=59,105 sf Runoff Volume=0.247 af Runoff Depth=2.18" Tc=10.0 min CN=WQ 4.00 cfs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 186HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 25S: West North Runoff = 11.60 cfs @ 12.14 hrs, Volume= 0.707 af, Depth= 1.82" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Area (sf) CN Description 111,088 80 >75% Grass cover, Good, HSG D * 91,498 98 Paved parking, & roofs HSG D 202,586 Weighted Average 111,088 80 54.83% Pervious Area 91,498 98 45.17% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 10.0 Direct Entry, Subcatchment 25S: West North Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)12 11 10 9 8 7 6 5 4 3 2 1 0 MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Runoff Area=202,586 sf Runoff Volume=0.707 af Runoff Depth=1.82" Tc=10.0 min CN=WQ 11.60 cfs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 187HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 28S: Avienda Pkwy - NW Runoff = 6.64 cfs @ 12.20 hrs, Volume= 0.497 af, Depth= 2.13" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Area (sf) CN Description 41,364 80 >75% Grass cover, Good, HSG D 80,294 98 Paved roads w/curbs & sewers, HSG D 121,658 Weighted Average 41,364 80 34.00% Pervious Area 80,294 98 66.00% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 15.0 Direct Entry, Subcatchment 28S: Avienda Pkwy - NW Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)7 6 5 4 3 2 1 0 MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Runoff Area=121,658 sf Runoff Volume=0.497 af Runoff Depth=2.13" Tc=15.0 min CN=WQ 6.64 cfs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 188HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 29oS: North Offsite Runoff = 0.12 cfs @ 12.07 hrs, Volume= 0.006 af, Depth= 2.64" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Area (sf) CN Description 1,162 98 Paved parking, HSG D 1,162 98 100.00% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 5.0 Direct Entry, Subcatchment 29oS: North Offsite Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.13 0.12 0.11 0.1 0.09 0.08 0.07 0.06 0.05 0.04 0.03 0.02 0.01 0 MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Runoff Area=1,162 sf Runoff Volume=0.006 af Runoff Depth=2.64" Tc=5.0 min CN=98 0.12 cfs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 189HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 31S: West Central Runoff = 1.31 cfs @ 12.20 hrs, Volume= 0.094 af, Depth= 1.49" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Area (sf) CN Adj Description 25,339 80 80 >75% Grass cover, Good, HSG D 7,500 98 98 Unconnected roofs, HSG D 32,839 Weighted Average 25,339 80 80 77.16% Pervious Area 7,500 98 98 22.84% Impervious Area 7,500 100.00% Unconnected Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 10.3 100 0.0200 0.16 Sheet Flow, Grass: Short n= 0.150 P2= 2.87" 4.4 260 0.0200 0.99 Shallow Concentrated Flow, Short Grass Pasture Kv= 7.0 fps 14.7 360 Total Subcatchment 31S: West Central Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)1 0 MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Runoff Area=32,839 sf Runoff Volume=0.094 af Runoff Depth=1.49" Flow Length=360' Slope=0.0200 '/' Tc=14.7 min UI Adjusted CN=WQ 1.31 cfs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 190HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 33oS: Offsite West - North Runoff = 6.01 cfs @ 12.10 hrs, Volume= 0.322 af, Depth= 1.45" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Area (sf) CN Adj Description 20,000 98 98 Unconnected roofs, HSG D 71,000 80 80 >75% Grass cover, Good, HSG D * 12,720 96 96 Wetland, Good, HSG D 12,145 58 58 Meadow, non-grazed, HSG B 115,865 Weighted Average 95,865 79 79 82.74% Pervious Area 20,000 98 98 17.26% Impervious Area 20,000 100.00% Unconnected Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 5.0 25 0.0200 0.08 Sheet Flow, Grass: Dense n= 0.240 P2= 2.87" 2.3 406 0.0390 2.96 Shallow Concentrated Flow, Grassed Waterway Kv= 15.0 fps 7.3 431 Total Subcatchment 33oS: Offsite West - North Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)6 5 4 3 2 1 0 MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Runoff Area=115,865 sf Runoff Volume=0.322 af Runoff Depth=1.45" Flow Length=431' Tc=7.3 min UI Adjusted CN=WQ 6.01 cfs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 191HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 33S: Direct to Wetland 3 Runoff = 3.78 cfs @ 12.16 hrs, Volume= 0.244 af, Depth= 1.63" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Area (sf) CN Description * 29,365 96 Wetland, Good, HSG D 48,788 80 >75% Grass cover, Good, HSG D 78,153 Weighted Average 78,153 86 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 12.0 Direct Entry, Subcatchment 33S: Direct to Wetland 3 Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)4 3 2 1 0 MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Runoff Area=78,153 sf Runoff Volume=0.244 af Runoff Depth=1.63" Tc=12.0 min CN=WQ 3.78 cfs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 192HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 34dS: Offsite West Direct Runoff = 1.18 cfs @ 12.14 hrs, Volume= 0.071 af, Depth= 1.45" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Area (sf) CN Description 20,380 80 >75% Grass cover, Good, HSG D * 5,090 98 Paved, HSG D 25,470 Weighted Average 20,380 80 80.02% Pervious Area 5,090 98 19.98% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 10.0 Direct Entry, Subcatchment 34dS: Offsite West Direct Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)1 0 MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Runoff Area=25,470 sf Runoff Volume=0.071 af Runoff Depth=1.45" Tc=10.0 min CN=WQ 1.18 cfs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 193HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 34oS: Offsite to West South Runoff = 1.64 cfs @ 12.08 hrs, Volume= 0.075 af, Depth= 1.20" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Area (sf) CN Adj Description 20,410 78 78 Meadow, non-grazed, HSG D 2,700 98 98 Unconnected roofs, HSG D 9,600 80 80 >75% Grass cover, Good, HSG D 32,710 Weighted Average 30,010 79 79 91.75% Pervious Area 2,700 98 98 8.25% Impervious Area 2,700 100.00% Unconnected Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 2.0 37 0.1620 0.30 Sheet Flow, Grass: Short n= 0.150 P2= 2.87" 3.0 Direct Entry, Make up to 5 minutes 5.0 37 Total Subcatchment 34oS: Offsite to West South Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)1 0 MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Runoff Area=32,710 sf Runoff Volume=0.075 af Runoff Depth=1.20" Flow Length=37' Slope=0.1620 '/' Tc=5.0 min UI Adjusted CN=WQ 1.64 cfs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 194HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 34S: West Woods Runoff = 0.15 cfs @ 12.37 hrs, Volume= 0.033 af, Depth= 0.16" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Area (ac) CN Description 2.423 55 Woods, Good, HSG B 2.423 55 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 8.4 50 0.0600 0.10 Sheet Flow, Woods: Light underbrush n= 0.400 P2= 2.87" 2.7 218 0.0710 1.33 Shallow Concentrated Flow, Woodland Kv= 5.0 fps 11.1 268 Total Subcatchment 34S: West Woods Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.17 0.16 0.15 0.14 0.13 0.12 0.11 0.1 0.09 0.08 0.07 0.06 0.05 0.04 0.03 0.02 0.01 0 MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Runoff Area=2.423 ac Runoff Volume=0.033 af Runoff Depth=0.16" Flow Length=268' Tc=11.1 min CN=55 0.15 cfs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 195HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 35S: Southwest Runoff = 0.22 cfs @ 12.61 hrs, Volume= 0.051 af, Depth= 0.16" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Area (ac) CN Description 3.790 55 Woods, Good, HSG B 3.790 55 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 16.0 75 0.0270 0.08 Sheet Flow, Woods: Light underbrush n= 0.400 P2= 2.87" 2.3 195 0.0820 1.43 Shallow Concentrated Flow, Woodland Kv= 5.0 fps 18.3 270 Total Subcatchment 35S: Southwest Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.24 0.23 0.22 0.21 0.2 0.19 0.18 0.17 0.16 0.15 0.14 0.13 0.12 0.11 0.1 0.09 0.08 0.07 0.06 0.05 0.04 0.03 0.02 0.01 0 MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Runoff Area=3.790 ac Runoff Volume=0.051 af Runoff Depth=0.16" Flow Length=270' Tc=18.3 min CN=55 0.22 cfs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 196HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 36oS: Southwest Offsite Runoff = 0.17 cfs @ 12.07 hrs, Volume= 0.008 af, Depth= 2.64" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Area (sf) CN Description 1,628 98 Paved parking, HSG D 1,628 98 100.00% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 5.0 Direct Entry, Subcatchment 36oS: Southwest Offsite Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.18 0.17 0.16 0.15 0.14 0.13 0.12 0.11 0.1 0.09 0.08 0.07 0.06 0.05 0.04 0.03 0.02 0.01 0 MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Runoff Area=1,628 sf Runoff Volume=0.008 af Runoff Depth=2.64" Tc=5.0 min CN=98 0.17 cfs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 197HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 40.1S: South - East Runoff = 11.92 cfs @ 12.13 hrs, Volume= 0.740 af, Depth= 2.37" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Area (sf) CN Description 29,976 80 >75% Grass cover, Good, HSG D 133,492 98 Paved parking, HSG D 163,468 Weighted Average 29,976 80 18.34% Pervious Area 133,492 98 81.66% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 10.0 Direct Entry, Subcatchment 40.1S: South - East Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)13 12 11 10 9 8 7 6 5 4 3 2 1 0 MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Runoff Area=163,468 sf Runoff Volume=0.740 af Runoff Depth=2.37" Tc=10.0 min CN=WQ 11.92 cfs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 198HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 40.2S: South - Central Runoff = 14.15 cfs @ 12.13 hrs, Volume= 0.877 af, Depth= 2.29" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Area (sf) CN Description 47,748 80 >75% Grass cover, Good, HSG D 152,819 98 Paved parking, HSG D 200,567 Weighted Average 47,748 80 23.81% Pervious Area 152,819 98 76.19% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 10.0 Direct Entry, Subcatchment 40.2S: South - Central Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Runoff Area=200,567 sf Runoff Volume=0.877 af Runoff Depth=2.29" Tc=10.0 min CN=WQ 14.15 cfs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 199HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 40.3S: South - West Runoff = 15.44 cfs @ 12.13 hrs, Volume= 0.954 af, Depth= 2.19" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Area (sf) CN Description 69,464 80 >75% Grass cover, Good, HSG D * 158,681 98 Paved parking & roofs, HSG D 228,145 Weighted Average 69,464 80 30.45% Pervious Area 158,681 98 69.55% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 10.0 Direct Entry, Subcatchment 40.3S: South - West Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Runoff Area=228,145 sf Runoff Volume=0.954 af Runoff Depth=2.19" Tc=10.0 min CN=WQ 15.44 cfs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 200HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 41.1S: South - East Runoff = 5.21 cfs @ 12.13 hrs, Volume= 0.324 af, Depth= 2.42" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Area (sf) CN Description 10,289 80 >75% Grass cover, Good, HSG D 59,695 98 Paved parking, HSG D 69,984 Weighted Average 10,289 80 14.70% Pervious Area 59,695 98 85.30% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 10.0 Direct Entry, Subcatchment 41.1S: South - East Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)5 4 3 2 1 0 MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Runoff Area=69,984 sf Runoff Volume=0.324 af Runoff Depth=2.42" Tc=10.0 min CN=WQ 5.21 cfs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 201HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 41.2S: South - Central Runoff = 11.30 cfs @ 12.13 hrs, Volume= 0.702 af, Depth= 2.34" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Area (sf) CN Description 31,015 80 >75% Grass cover, Good, HSG D 125,404 98 Paved parking, HSG D 156,419 Weighted Average 31,015 80 19.83% Pervious Area 125,404 98 80.17% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 10.0 Direct Entry, Subcatchment 41.2S: South - Central Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)12 11 10 9 8 7 6 5 4 3 2 1 0 MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Runoff Area=156,419 sf Runoff Volume=0.702 af Runoff Depth=2.34" Tc=10.0 min CN=WQ 11.30 cfs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 202HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 41.3S: South - west Runoff = 2.33 cfs @ 12.13 hrs, Volume= 0.146 af, Depth= 2.55" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Area (sf) CN Description 1,850 80 >75% Grass cover, Good, HSG D 28,034 98 Paved parking, HSG D 29,884 Weighted Average 1,850 80 6.19% Pervious Area 28,034 98 93.81% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 10.0 Direct Entry, Subcatchment 41.3S: South - west Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)2 1 0 MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Runoff Area=29,884 sf Runoff Volume=0.146 af Runoff Depth=2.55" Tc=10.0 min CN=WQ 2.33 cfs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 203HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 42.1S: South Runoff = 2.06 cfs @ 12.08 hrs, Volume= 0.092 af, Depth= 1.15" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Area (sf) CN Description 41,871 80 >75% Grass cover, Good, HSG D 41,871 80 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 5.0 Direct Entry, Subcatchment 42.1S: South Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)2 1 0 MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Runoff Area=41,871 sf Runoff Volume=0.092 af Runoff Depth=1.15" Tc=5.0 min CN=80 2.06 cfs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 204HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 42.2S: Southeast Runoff = 1.20 cfs @ 12.08 hrs, Volume= 0.054 af, Depth= 1.15" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Area (sf) CN Description 24,525 80 >75% Grass cover, Good, HSG D 24,525 80 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 5.0 Direct Entry, Subcatchment 42.2S: Southeast Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)1 0 MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Runoff Area=24,525 sf Runoff Volume=0.054 af Runoff Depth=1.15" Tc=5.0 min CN=80 1.20 cfs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 205HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 43.1S: East Woods Runoff = 0.19 cfs @ 12.58 hrs, Volume= 0.043 af, Depth= 0.16" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Area (ac) CN Description 3.222 55 Woods, Good, HSG B 3.222 55 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 11.1 75 0.0670 0.11 Sheet Flow, Woods: Light underbrush n= 0.400 P2= 2.87" 4.1 455 0.1380 1.86 Shallow Concentrated Flow, Woodland Kv= 5.0 fps 15.2 530 Total Subcatchment 43.1S: East Woods Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.21 0.2 0.19 0.18 0.17 0.16 0.15 0.14 0.13 0.12 0.11 0.1 0.09 0.08 0.07 0.06 0.05 0.04 0.03 0.02 0.01 0 MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Runoff Area=3.222 ac Runoff Volume=0.043 af Runoff Depth=0.16" Flow Length=530' Tc=15.2 min CN=55 0.19 cfs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 206HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 43.2S: Northeast Woods Runoff = 0.11 cfs @ 12.62 hrs, Volume= 0.025 af, Depth= 0.16" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Area (ac) CN Description 1.862 55 Woods, Good, HSG B 1.862 55 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 14.2 100 0.0650 0.12 Sheet Flow, Woods: Light underbrush n= 0.400 P2= 2.87" 5.3 523 0.1080 1.64 Shallow Concentrated Flow, Woodland Kv= 5.0 fps 19.5 623 Total Subcatchment 43.2S: Northeast Woods Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.12 0.115 0.11 0.105 0.1 0.095 0.09 0.085 0.08 0.075 0.07 0.065 0.06 0.055 0.05 0.045 0.04 0.035 0.03 0.025 0.02 0.015 0.01 0.005 0 MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Runoff Area=1.862 ac Runoff Volume=0.025 af Runoff Depth=0.16" Flow Length=623' Tc=19.5 min CN=55 0.11 cfs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 207HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 44S: North Woods Runoff = 0.60 cfs @ 12.60 hrs, Volume= 0.136 af, Depth= 0.16" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Area (sf) CN Description 441,314 55 Woods, Good, HSG B 441,314 55 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 11.2 75 0.0660 0.11 Sheet Flow, Woods: Light underbrush n= 0.400 P2= 2.87" 5.3 524 0.1090 1.65 Shallow Concentrated Flow, Woodland Kv= 5.0 fps 16.5 599 Total Subcatchment 44S: North Woods Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.65 0.6 0.55 0.5 0.45 0.4 0.35 0.3 0.25 0.2 0.15 0.1 0.05 0 MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Runoff Area=441,314 sf Runoff Volume=0.136 af Runoff Depth=0.16" Flow Length=599' Tc=16.5 min CN=55 0.60 cfs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 208HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 45S: Central - West Runoff = 13.75 cfs @ 12.13 hrs, Volume= 0.811 af, Depth= 2.05" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Area (sf) CN Description 159,000 95 Urban commercial, 85% imp, HSG D 47,303 80 >75% Grass cover, Good, HSG D 206,303 Weighted Average 71,153 79 34.49% Pervious Area 135,150 98 65.51% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 10.0 Direct Entry, Subcatchment 45S: Central - West Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Runoff Area=206,303 sf Runoff Volume=0.811 af Runoff Depth=2.05" Tc=10.0 min CN=WQ 13.75 cfs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 209HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 46S: South Townhomes Runoff = 4.04 cfs @ 12.17 hrs, Volume= 0.268 af, Depth= 1.44" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Area (sf) CN Description 19,025 98 Paved parking, HSG D 78,057 80 >75% Grass cover, Good, HSG D 97,082 Weighted Average 78,057 80 80.40% Pervious Area 19,025 98 19.60% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 11.7 92 0.0320 0.13 Sheet Flow, Grass: Dense n= 0.240 P2= 2.87" 0.9 609 0.5200 10.82 Shallow Concentrated Flow, Grassed Waterway Kv= 15.0 fps 12.6 701 Total Subcatchment 46S: South Townhomes Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)4 3 2 1 0 MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Runoff Area=97,082 sf Runoff Volume=0.268 af Runoff Depth=1.44" Flow Length=701' Tc=12.6 min CN=WQ 4.04 cfs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 210HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 47S: Bluff Creek Blvd - West Runoff = 9.21 cfs @ 12.07 hrs, Volume= 0.450 af, Depth= 2.35" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Area (ac) CN Description 0.439 80 >75% Grass cover, Good, HSG D 1.856 98 Paved roads w/curbs & sewers, HSG D 2.295 Weighted Average 0.439 80 19.13% Pervious Area 1.856 98 80.87% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 5.0 Direct Entry, Subcatchment 47S: Bluff Creek Blvd - West Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)10 9 8 7 6 5 4 3 2 1 0 MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Runoff Area=2.295 ac Runoff Volume=0.450 af Runoff Depth=2.35" Tc=5.0 min CN=WQ 9.21 cfs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 211HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 48.1S: Direct to 48P (2) Runoff = 6.28 cfs @ 12.13 hrs, Volume= 0.388 af, Depth= 2.16" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Area (sf) CN Description 29,956 80 >75% Grass cover, Good, HSG D 63,765 98 Paved parking, HSG D 93,721 Weighted Average 29,956 80 31.96% Pervious Area 63,765 98 68.04% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 10.0 Direct Entry, Subcatchment 48.1S: Direct to 48P (2) Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)7 6 5 4 3 2 1 0 MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Runoff Area=93,721 sf Runoff Volume=0.388 af Runoff Depth=2.16" Tc=10.0 min CN=WQ 6.28 cfs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 212HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 48S: Bluff Creek Blvd - East Runoff = 13.85 cfs @ 12.07 hrs, Volume= 0.677 af, Depth= 2.36" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Area (ac) CN Description 0.642 80 >75% Grass cover, Good, HSG D 2.799 98 Paved roads w/curbs & sewers, HSG D 3.441 Weighted Average 0.642 80 18.66% Pervious Area 2.799 98 81.34% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 5.0 Direct Entry, Subcatchment 48S: Bluff Creek Blvd - East Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Runoff Area=3.441 ac Runoff Volume=0.677 af Runoff Depth=2.36" Tc=5.0 min CN=WQ 13.85 cfs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 213HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Reach 20R: Northwest Drainage [40] Hint: Not Described (Outflow=Inflow) Inflow Area = 15.265 ac, 37.82% Impervious, Inflow Depth = 1.07" for 2y 24hr event Inflow = 4.14 cfs @ 13.05 hrs, Volume= 1.359 af Outflow = 4.14 cfs @ 13.05 hrs, Volume= 1.359 af, Atten= 0%, Lag= 0.0 min Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Reach 20R: Northwest Drainage Inflow Outflow Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)4 3 2 1 0 Inflow Area=15.265 ac 4.14 cfs 4.14 cfs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 214HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Reach 21R: Lower Wetland 6 Inflow Area = 15.265 ac, 37.82% Impervious, Inflow Depth = 1.07" for 2y 24hr event Inflow = 4.15 cfs @ 13.02 hrs, Volume= 1.359 af Outflow = 4.14 cfs @ 13.05 hrs, Volume= 1.359 af, Atten= 0%, Lag= 1.5 min Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Max. Velocity= 0.73 fps, Min. Travel Time= 4.3 min Avg. Velocity = 0.34 fps, Avg. Travel Time= 9.2 min Peak Storage= 1,059 cf @ 13.05 hrs Average Depth at Peak Storage= 0.39' Bank-Full Depth= 5.99' Flow Area= 570.1 sf, Capacity= 3,072.14 cfs Custom cross-section, Length= 187.0' Slope= 0.0053 '/' (102 Elevation Intervals) Constant n= 0.050 Scattered brush, heavy weeds Inlet Invert= 885.00', Outlet Invert= 884.00' ‡ Offset Elevation Chan.Depth (feet) (feet) (feet) 0.00 890.40 0.00 43.10 886.55 3.85 85.60 884.41 5.99 126.20 885.14 5.26 145.10 890.40 0.00 Depth End Area Perim. Storage Discharge (feet) (sq-ft) (feet) (cubic-feet) (cfs) 0.00 0.0 0.0 0 0.00 0.73 20.1 55.1 3,761 22.32 2.14 121.1 88.4 22,648 324.64 5.99 570.1 146.1 106,618 3,072.14 MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 215HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Reach 21R: Lower Wetland 6 Inflow Outflow Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)4 3 2 1 0 Inflow Area=15.265 ac Avg. Flow Depth=0.39' Max Vel=0.73 fps n=0.050 L=187.0' S=0.0053 '/' Capacity=3,072.14 cfs 4.15 cfs 4.14 cfs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 216HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Reach 30R: SW Drainage [40] Hint: Not Described (Outflow=Inflow) Inflow Area = 12.794 ac, 6.62% Impervious, Inflow Depth = 0.82" for 2y 24hr event Inflow = 2.99 cfs @ 12.14 hrs, Volume= 0.877 af Outflow = 2.99 cfs @ 12.14 hrs, Volume= 0.877 af, Atten= 0%, Lag= 0.0 min Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Reach 30R: SW Drainage Inflow Outflow Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)3 2 1 0 Inflow Area=12.794 ac 2.99 cfs 2.99 cfs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 217HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Reach 35R: Direct Runoff [40] Hint: Not Described (Outflow=Inflow) Inflow Area = 4.375 ac, 2.67% Impervious, Inflow Depth = 0.33" for 2y 24hr event Inflow = 1.19 cfs @ 12.14 hrs, Volume= 0.122 af Outflow = 1.19 cfs @ 12.14 hrs, Volume= 0.122 af, Atten= 0%, Lag= 0.0 min Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Reach 35R: Direct Runoff Inflow Outflow Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)1 0 Inflow Area=4.375 ac 1.19 cfs 1.19 cfs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 218HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Reach 40R: South Drainage [40] Hint: Not Described (Outflow=Inflow) Inflow Area = 51.070 ac, 48.50% Impervious, Inflow Depth = 0.62" for 2y 24hr event Inflow = 11.37 cfs @ 12.29 hrs, Volume= 2.641 af Outflow = 11.37 cfs @ 12.29 hrs, Volume= 2.641 af, Atten= 0%, Lag= 0.0 min Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Reach 40R: South Drainage Inflow Outflow Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)12 11 10 9 8 7 6 5 4 3 2 1 0 Inflow Area=51.070 ac 11.37 cfs 11.37 cfs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 219HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Reach 42.1R: South [40] Hint: Not Described (Outflow=Inflow) Inflow Area = 9.843 ac, 71.43% Impervious, Inflow Depth = 0.87" for 2y 24hr event Inflow = 6.22 cfs @ 12.27 hrs, Volume= 0.714 af Outflow = 6.22 cfs @ 12.27 hrs, Volume= 0.714 af, Atten= 0%, Lag= 0.0 min Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Reach 42.1R: South Inflow Outflow Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)6 5 4 3 2 1 0 Inflow Area=9.843 ac 6.22 cfs 6.22 cfs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 220HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Reach 42.2R: Southeast [40] Hint: Not Described (Outflow=Inflow) Inflow Area = 11.515 ac, 75.54% Impervious, Inflow Depth = 0.78" for 2y 24hr event Inflow = 1.94 cfs @ 13.04 hrs, Volume= 0.749 af Outflow = 1.94 cfs @ 13.04 hrs, Volume= 0.749 af, Atten= 0%, Lag= 0.0 min Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Reach 42.2R: Southeast Inflow Outflow Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)2 1 0 Inflow Area=11.515 ac 1.94 cfs 1.94 cfs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 221HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Reach 44R: Wetland 4 Channel [40] Hint: Not Described (Outflow=Inflow) Inflow Area = 26.490 ac, 34.12% Impervious, Inflow Depth = 0.51" for 2y 24hr event Inflow = 4.03 cfs @ 12.28 hrs, Volume= 1.134 af Outflow = 4.03 cfs @ 12.28 hrs, Volume= 1.134 af, Atten= 0%, Lag= 0.0 min Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Reach 44R: Wetland 4 Channel Inflow Outflow Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)4 3 2 1 0 Inflow Area=26.490 ac 4.03 cfs 4.03 cfs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 222HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Reach 48R: Development to Wetland 4 [40] Hint: Not Described (Outflow=Inflow) Inflow Area = 14.497 ac, 62.34% Impervious, Inflow Depth = 0.81" for 2y 24hr event Inflow = 3.82 cfs @ 12.24 hrs, Volume= 0.973 af Outflow = 3.82 cfs @ 12.24 hrs, Volume= 0.973 af, Atten= 0%, Lag= 0.0 min Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Reach 48R: Development to Wetland 4 Inflow Outflow Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)4 3 2 1 0 Inflow Area=14.497 ac 3.82 cfs 3.82 cfs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 223HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Reach 50R: Bluff Creek Drainage [40] Hint: Not Described (Outflow=Inflow) Inflow Area = 79.129 ac, 39.67% Impervious, Inflow Depth = 0.74" for 2y 24hr event Inflow = 15.73 cfs @ 12.38 hrs, Volume= 4.877 af Outflow = 15.73 cfs @ 12.38 hrs, Volume= 4.877 af, Atten= 0%, Lag= 0.0 min Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Reach 50R: Bluff Creek Drainage Inflow Outflow Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 Inflow Area=79.129 ac 15.73 cfs 15.73 cfs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 224HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Pond 21P: North Basin Inflow Area = 14.040 ac, 40.93% Impervious, Inflow Depth = 1.34" for 2y 24hr event Inflow = 16.10 cfs @ 12.17 hrs, Volume= 1.566 af Outflow = 4.01 cfs @ 13.10 hrs, Volume= 1.566 af, Atten= 75%, Lag= 55.9 min Discarded = 0.10 cfs @ 12.79 hrs, Volume= 0.326 af Primary = 3.90 cfs @ 13.10 hrs, Volume= 1.240 af Secondary = 0.00 cfs @ 0.00 hrs, Volume= 0.000 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 892.06' @ 13.10 hrs Surf.Area= 74,240 sf Storage= 26,750 cf Plug-Flow detention time= 449.5 min calculated for 1.566 af (100% of inflow) Center-of-Mass det. time= 449.5 min ( 1,294.5 - 845.0 ) Volume Invert Avail.Storage Storage Description #1 889.70' 25,434 cf Sand Section (Prismatic) Listed below (Recalc) 85,376 cf Overall - 594 cf Embedded = 84,782 cf x 30.0% Voids #2 892.00' 5,568 cf Topsoil (Prismatic) Listed below (Recalc) 18,560 cf Overall x 30.0% Voids #3 892.50' 150,182 cf Open Pond (Prismatic) Listed below (Recalc) #4 889.70' 594 cf 8.0" Round Pipe Storage Inside #1 L= 1,703.0' 181,778 cf Total Available Storage Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 889.70 37,120 0 0 892.00 37,120 85,376 85,376 Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 892.00 37,120 0 0 892.50 37,120 18,560 18,560 Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 892.50 37,120 0 0 893.00 38,678 18,950 18,950 894.00 41,838 40,258 59,208 895.00 45,055 43,447 102,654 896.00 50,000 47,528 150,182 Device Routing Invert Outlet Devices #1 Primary 889.70'18.0" Round Culvert L= 45.0' RCP, sq.cut end projecting, Ke= 0.500 Inlet / Outlet Invert= 889.70' / 889.38' S= 0.0071 '/' Cc= 0.900 n= 0.011 Concrete pipe, straight & clean, Flow Area= 1.77 sf #2 Device 1 890.50'12.0" Vert. Orifice/Grate C= 0.600 #3 Device 1 892.74'12.0" Vert. Orifice/Grate C= 0.600 #4 Discarded 889.70'0.060 in/hr Exfiltration over Surface area Phase-In= 0.01' MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 225HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC #5 Secondary 894.00'20.0' long x 5.0' breadth Broad-Crested Rectangular Weir Head (feet) 0.20 0.40 0.60 0.80 1.00 1.20 1.40 1.60 1.80 2.00 2.50 3.00 3.50 4.00 4.50 5.00 5.50 Coef. (English) 2.34 2.50 2.70 2.68 2.68 2.66 2.65 2.65 2.65 2.65 2.67 2.66 2.68 2.70 2.74 2.79 2.88 Discarded OutFlow Max=0.10 cfs @ 12.79 hrs HW=892.00' (Free Discharge) 4=Exfiltration (Exfiltration Controls 0.10 cfs) Primary OutFlow Max=3.90 cfs @ 13.10 hrs HW=892.06' TW=885.39' (Dynamic Tailwater) 1=Culvert (Passes 3.90 cfs of 10.68 cfs potential flow) 2=Orifice/Grate (Orifice Controls 3.90 cfs @ 4.97 fps) 3=Orifice/Grate ( Controls 0.00 cfs) Secondary OutFlow Max=0.00 cfs @ 0.00 hrs HW=889.70' TW=885.00' (Dynamic Tailwater) 5=Broad-Crested Rectangular Weir ( Controls 0.00 cfs) Pond 21P: North Basin Inflow Outflow Discarded Primary Secondary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 Inflow Area=14.040 ac Peak Elev=892.06' Storage=26,750 cf 16.10 cfs 4.01 cfs 0.10 cfs 3.90 cfs 0.00 cfs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 226HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Pond 24P: Northwest Basin Inflow Area = 1.357 ac, 69.40% Impervious, Inflow Depth = 2.18" for 2y 24hr event Inflow = 4.00 cfs @ 12.13 hrs, Volume= 0.247 af Outflow = 1.12 cfs @ 12.41 hrs, Volume= 0.247 af, Atten= 72%, Lag= 16.9 min Discarded = 0.02 cfs @ 6.10 hrs, Volume= 0.093 af Primary = 1.10 cfs @ 12.41 hrs, Volume= 0.153 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 914.36' @ 12.41 hrs Surf.Area= 11,000 sf Storage= 5,281 cf Plug-Flow detention time= 684.3 min calculated for 0.247 af (100% of inflow) Center-of-Mass det. time= 684.3 min ( 1,457.1 - 772.8 ) Volume Invert Avail.Storage Storage Description #1 912.80' 7,537 cf Custom Stage Data (Prismatic) Listed below (Recalc) 25,300 cf Overall - 176 cf Embedded = 25,124 cf x 30.0% Voids #2 915.10' 8,729 cf Custom Stage Data (Prismatic) Listed below (Recalc) 22,000 cf Overall - 176 cf Embedded = 21,824 cf x 40.0% Voids #3 912.80' 176 cf 8.0" Round Pipe Storage Inside #1 L= 505.0' #4 915.10' 176 cf 8.0" Round Pipe Storage Inside #2 L= 505.0' 16,619 cf Total Available Storage Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 912.80 11,000 0 0 915.10 11,000 25,300 25,300 Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 915.10 11,000 0 0 917.10 11,000 22,000 22,000 Device Routing Invert Outlet Devices #1 Primary 912.80'12.0" Round Culvert L= 100.0' RCP, sq.cut end projecting, Ke= 0.500 Inlet / Outlet Invert= 912.80' / 912.10' S= 0.0070 '/' Cc= 0.900 n= 0.011 Concrete pipe, straight & clean, Flow Area= 0.79 sf #2 Device 1 913.60'8.0" Vert. Orifice/Grate C= 0.600 #3 Device 1 915.77'8.0" Vert. Orifice/Grate C= 0.600 #4 Discarded 912.80'0.060 in/hr Exfiltration over Surface area Phase-In= 0.01' Discarded OutFlow Max=0.02 cfs @ 6.10 hrs HW=912.81' (Free Discharge) 4=Exfiltration (Exfiltration Controls 0.02 cfs) Primary OutFlow Max=1.10 cfs @ 12.41 hrs HW=914.36' TW=895.38' (Dynamic Tailwater) 1=Culvert (Passes 1.10 cfs of 3.66 cfs potential flow) 2=Orifice/Grate (Orifice Controls 1.10 cfs @ 3.16 fps) 3=Orifice/Grate ( Controls 0.00 cfs) MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 227HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Pond 24P: Northwest Basin Inflow Outflow Discarded Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)4 3 2 1 0 Inflow Area=1.357 ac Peak Elev=914.36' Storage=5,281 cf 4.00 cfs 1.12 cfs 0.02 cfs 1.10 cfs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 228HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Pond 25P: West - North Inflow Area = 4.651 ac, 45.17% Impervious, Inflow Depth = 1.82" for 2y 24hr event Inflow = 11.60 cfs @ 12.14 hrs, Volume= 0.707 af Outflow = 6.79 cfs @ 12.26 hrs, Volume= 0.707 af, Atten= 41%, Lag= 7.5 min Discarded = 0.02 cfs @ 4.13 hrs, Volume= 0.135 af Primary = 6.77 cfs @ 12.26 hrs, Volume= 0.572 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 914.80' @ 12.26 hrs Surf.Area= 15,560 sf Storage= 10,324 cf Plug-Flow detention time= 361.3 min calculated for 0.707 af (100% of inflow) Center-of-Mass det. time= 361.4 min ( 1,147.9 - 786.6 ) Volume Invert Avail.Storage Storage Description #1 912.63' 10,662 cf Custom Stage Data (Prismatic) Listed below (Recalc) 35,788 cf Overall - 249 cf Embedded = 35,539 cf x 30.0% Voids #2 914.93' 12,348 cf Custom Stage Data (Prismatic) Listed below (Recalc) 31,120 cf Overall - 249 cf Embedded = 30,871 cf x 40.0% Voids #3 916.93' 9,772 cf Custom Stage Data (Prismatic) Listed below (Recalc) 24,429 cf Overall x 40.0% Voids #4 912.63' 249 cf 8.0" Round Pipe Storage Inside #1 L= 714.0' #5 914.93' 249 cf 8.0" Round Pipe Storage Inside #2 L= 714.0' 33,280 cf Total Available Storage Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 912.63 15,560 0 0 914.93 15,560 35,788 35,788 Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 914.93 15,560 0 0 916.93 15,560 31,120 31,120 Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 916.93 15,560 0 0 918.50 15,560 24,429 24,429 Device Routing Invert Outlet Devices #1 Primary 912.63'18.0" Round Culvert L= 153.0' RCP, sq.cut end projecting, Ke= 0.500 Inlet / Outlet Invert= 912.63' / 911.10' S= 0.0100 '/' Cc= 0.900 n= 0.011 Concrete pipe, straight & clean, Flow Area= 1.77 sf #2 Device 1 913.43'18.0" Vert. Orifice/Grate C= 0.600 #3 Device 1 915.67'18.0" Vert. Orifice/Grate C= 0.600 #4 Discarded 912.63'0.060 in/hr Exfiltration over Surface area Phase-In= 0.01' MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 229HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Discarded OutFlow Max=0.02 cfs @ 4.13 hrs HW=912.64' (Free Discharge) 4=Exfiltration (Exfiltration Controls 0.02 cfs) Primary OutFlow Max=6.77 cfs @ 12.26 hrs HW=914.80' TW=895.98' (Dynamic Tailwater) 1=Culvert (Passes 6.77 cfs of 10.15 cfs potential flow) 2=Orifice/Grate (Orifice Controls 6.77 cfs @ 3.99 fps) 3=Orifice/Grate ( Controls 0.00 cfs) Pond 25P: West - North Inflow Outflow Discarded Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)12 11 10 9 8 7 6 5 4 3 2 1 0 Inflow Area=4.651 ac Peak Elev=914.80' Storage=10,324 cf 11.60 cfs 6.79 cfs 0.02 cfs 6.77 cfs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 230HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Pond 28P: Avienda Pkwy - NW Basin Inflow Area = 2.793 ac, 66.00% Impervious, Inflow Depth = 2.13" for 2y 24hr event Inflow = 6.64 cfs @ 12.20 hrs, Volume= 0.497 af Outflow = 0.81 cfs @ 13.02 hrs, Volume= 0.497 af, Atten= 88%, Lag= 49.2 min Discarded = 0.04 cfs @ 6.55 hrs, Volume= 0.266 af Primary = 0.77 cfs @ 13.02 hrs, Volume= 0.230 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 911.07' @ 13.02 hrs Surf.Area= 30,906 sf Storage= 12,815 cf Plug-Flow detention time= 1,007.2 min calculated for 0.497 af (100% of inflow) Center-of-Mass det. time= 1,007.3 min ( 1,786.4 - 779.1 ) Volume Invert Avail.Storage Storage Description #1 909.73' 21,177 cf Custom Stage Data (Prismatic) Listed below (Recalc) 71,084 cf Overall - 495 cf Embedded = 70,589 cf x 30.0% Voids #2 912.03' 24,527 cf Custom Stage Data (Prismatic) Listed below (Recalc) 61,812 cf Overall - 495 cf Embedded = 61,317 cf x 40.0% Voids #3 909.73' 495 cf 8.0" Round Pipe Storage Inside #1 L= 1,418.0' #4 912.03' 495 cf 8.0" Round Pipe Storage Inside #2 L= 1,418.0' 46,693 cf Total Available Storage Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 909.73 30,906 0 0 912.03 30,906 71,084 71,084 Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 912.03 30,906 0 0 914.03 30,906 61,812 61,812 Device Routing Invert Outlet Devices #1 Primary 909.73'12.0" Round Culvert L= 148.0' RCP, sq.cut end projecting, Ke= 0.500 Inlet / Outlet Invert= 909.73' / 908.25' S= 0.0100 '/' Cc= 0.900 n= 0.011 Concrete pipe, straight & clean, Flow Area= 0.79 sf #2 Device 1 910.53'8.0" Vert. Orifice/Grate C= 0.600 #3 Device 1 912.77'8.0" Vert. Orifice/Grate C= 0.600 #4 Discarded 909.73'0.060 in/hr Exfiltration over Surface area Phase-In= 0.01' Discarded OutFlow Max=0.04 cfs @ 6.55 hrs HW=909.74' (Free Discharge) 4=Exfiltration (Exfiltration Controls 0.04 cfs) Primary OutFlow Max=0.77 cfs @ 13.02 hrs HW=911.07' TW=894.99' (Dynamic Tailwater) 1=Culvert (Passes 0.77 cfs of 3.48 cfs potential flow) 2=Orifice/Grate (Orifice Controls 0.77 cfs @ 2.51 fps) 3=Orifice/Grate ( Controls 0.00 cfs) MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 231HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Pond 28P: Avienda Pkwy - NW Basin Inflow Outflow Discarded Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)7 6 5 4 3 2 1 0 Inflow Area=2.793 ac Peak Elev=911.07' Storage=12,815 cf 6.64 cfs 0.81 cfs 0.04 cfs 0.77 cfs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 232HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Pond 31P: West South Basin Inflow Area = 0.754 ac, 22.84% Impervious, Inflow Depth = 1.49" for 2y 24hr event Inflow = 1.31 cfs @ 12.20 hrs, Volume= 0.094 af Outflow = 0.99 cfs @ 12.31 hrs, Volume= 0.094 af, Atten= 25%, Lag= 6.8 min Discarded = 0.00 cfs @ 6.36 hrs, Volume= 0.020 af Primary = 0.98 cfs @ 12.31 hrs, Volume= 0.073 af Secondary = 0.00 cfs @ 0.00 hrs, Volume= 0.000 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 922.40' @ 12.31 hrs Surf.Area= 2,441 sf Storage= 1,110 cf Plug-Flow detention time= 380.6 min calculated for 0.094 af (100% of inflow) Center-of-Mass det. time= 380.7 min ( 1,190.2 - 809.5 ) Volume Invert Avail.Storage Storage Description #1 920.93' 1,671 cf Sand Setion (Prismatic) Listed below (Recalc) 5,614 cf Overall - 44 cf Embedded = 5,571 cf x 30.0% Voids #2 923.23' 366 cf Topsoil (Prismatic) Listed below (Recalc) 1,221 cf Overall x 30.0% Voids #3 923.73' 11,497 cf Open pond (Prismatic) Listed below (Recalc) #4 920.93' 44 cf 8.0" Round Pipe Storage Inside #1 L= 125.0' 13,578 cf Total Available Storage Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 920.93 2,441 0 0 923.23 2,441 5,614 5,614 Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 923.23 2,441 0 0 923.73 2,441 1,221 1,221 Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 923.73 2,441 0 0 926.60 4,878 10,503 10,503 926.70 15,000 994 11,497 Device Routing Invert Outlet Devices #1 Primary 920.93'12.0" Round Culvert L= 46.0' RCP, sq.cut end projecting, Ke= 0.500 Inlet / Outlet Invert= 920.93' / 920.80' S= 0.0028 '/' Cc= 0.900 n= 0.011 Concrete pipe, straight & clean, Flow Area= 0.79 sf #2 Device 1 921.73'8.0" Vert. Orifice/Grate C= 0.600 #3 Device 1 923.84'8.0" Vert. Orifice/Grate C= 0.600 #4 Secondary 925.60'20.0' long x 5.0' breadth Broad-Crested Rectangular Weir Head (feet) 0.20 0.40 0.60 0.80 1.00 1.20 1.40 1.60 1.80 2.00 2.50 3.00 3.50 4.00 4.50 5.00 5.50 MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 233HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Coef. (English) 2.34 2.50 2.70 2.68 2.68 2.66 2.65 2.65 2.65 2.65 2.67 2.66 2.68 2.70 2.74 2.79 2.88 #5 Discarded 920.93'0.060 in/hr Exfiltration over Horizontal area Phase-In= 0.01' Discarded OutFlow Max=0.00 cfs @ 6.36 hrs HW=920.94' (Free Discharge) 5=Exfiltration (Exfiltration Controls 0.00 cfs) Primary OutFlow Max=0.98 cfs @ 12.31 hrs HW=922.40' TW=921.14' (Dynamic Tailwater) 1=Culvert (Passes 0.98 cfs of 3.08 cfs potential flow) 2=Orifice/Grate (Orifice Controls 0.98 cfs @ 2.81 fps) 3=Orifice/Grate ( Controls 0.00 cfs) Secondary OutFlow Max=0.00 cfs @ 0.00 hrs HW=920.93' TW=920.58' (Dynamic Tailwater) 4=Broad-Crested Rectangular Weir ( Controls 0.00 cfs) Pond 31P: West South Basin Inflow Outflow Discarded Primary Secondary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)1 0 Inflow Area=0.754 ac Peak Elev=922.40' Storage=1,110 cf 1.31 cfs 0.99 cfs 0.00 cfs 0.98 cfs 0.00 cfs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 234HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Pond 32P: Drop MH [57] Hint: Peaked at 895.98' (Flood elevation advised) Inflow Area = 4.651 ac, 45.17% Impervious, Inflow Depth = 1.48" for 2y 24hr event Inflow = 6.77 cfs @ 12.26 hrs, Volume= 0.572 af Outflow = 6.77 cfs @ 12.26 hrs, Volume= 0.572 af, Atten= 0%, Lag= 0.0 min Primary = 6.77 cfs @ 12.26 hrs, Volume= 0.572 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 895.98' @ 12.26 hrs Device Routing Invert Outlet Devices #1 Primary 894.50'18.0" Round Culvert L= 90.0' RCP, sq.cut end projecting, Ke= 0.500 Inlet / Outlet Invert= 894.50' / 894.00' S= 0.0056 '/' Cc= 0.900 n= 0.011 Concrete pipe, straight & clean, Flow Area= 1.77 sf Primary OutFlow Max=6.77 cfs @ 12.26 hrs HW=895.98' TW=891.00' (Dynamic Tailwater) 1=Culvert (Barrel Controls 6.77 cfs @ 4.81 fps) Pond 32P: Drop MH Inflow Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)7 6 5 4 3 2 1 0 Inflow Area=4.651 ac Peak Elev=895.98' 18.0" Round Culvert n=0.011 L=90.0' S=0.0056 '/' 6.77 cfs 6.77 cfs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 235HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Pond 33P: Wetland 3 Inflow Area = 5.208 ac, 12.12% Impervious, Inflow Depth = 1.47" for 2y 24hr event Inflow = 9.44 cfs @ 12.12 hrs, Volume= 0.639 af Outflow = 1.39 cfs @ 12.81 hrs, Volume= 0.639 af, Atten= 85%, Lag= 41.0 min Primary = 1.39 cfs @ 12.81 hrs, Volume= 0.639 af Secondary = 0.00 cfs @ 0.00 hrs, Volume= 0.000 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 921.20' @ 12.81 hrs Surf.Area= 37,793 sf Storage= 13,236 cf Plug-Flow detention time= 152.0 min calculated for 0.639 af (100% of inflow) Center-of-Mass det. time= 154.4 min ( 961.6 - 807.2 ) Volume Invert Avail.Storage Storage Description #1 920.58' 140,121 cf Custom Stage Data (Prismatic) Listed below (Recalc) Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 920.58 100 0 0 921.00 30,000 6,321 6,321 922.00 68,200 49,100 55,421 923.00 101,200 84,700 140,121 Device Routing Invert Outlet Devices #1 Primary 920.58'12.0" Round Culvert L= 455.0' RCP, end-section conforming to fill, Ke= 0.500 Inlet / Outlet Invert= 920.58' / 911.02' S= 0.0210 '/' Cc= 0.900 n= 0.013 Concrete pipe, straight & clean, Flow Area= 0.79 sf #2 Secondary 921.90'Asymmetrical Weir, C= 3.27 Offset (feet) 0.00 19.00 40.00 50.00 76.00 103.00 Height (feet) 1.50 0.50 0.00 0.00 0.50 1.50 Primary OutFlow Max=1.39 cfs @ 12.81 hrs HW=921.20' TW=907.63' (Dynamic Tailwater) 1=Culvert (Inlet Controls 1.39 cfs @ 2.69 fps) Secondary OutFlow Max=0.00 cfs @ 0.00 hrs HW=920.58' TW=0.00' (Dynamic Tailwater) 2=Asymmetrical Weir ( Controls 0.00 cfs) MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 236HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Pond 33P: Wetland 3 Inflow Outflow Primary Secondary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)10 9 8 7 6 5 4 3 2 1 0 Inflow Area=5.208 ac Peak Elev=921.20' Storage=13,236 cf 9.44 cfs 1.39 cfs 1.39 cfs 0.00 cfs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 237HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Pond 34P: West - South (existing) Inflow Area = 8.382 ac, 8.27% Impervious, Inflow Depth = 1.07" for 2y 24hr event Inflow = 2.19 cfs @ 12.08 hrs, Volume= 0.747 af Outflow = 1.75 cfs @ 12.56 hrs, Volume= 0.747 af, Atten= 20%, Lag= 28.7 min Primary = 1.75 cfs @ 12.56 hrs, Volume= 0.747 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 907.65' @ 12.56 hrs Surf.Area= 0.035 ac Storage= 0.011 af Plug-Flow detention time= (not calculated: outflow precedes inflow) Center-of-Mass det. time= 4.8 min ( 951.8 - 947.0 ) Volume Invert Avail.Storage Storage Description #1 907.00' 1.603 af Custom Stage Data (Prismatic) Listed below (Recalc) Elevation Surf.Area Inc.Store Cum.Store (feet) (acres) (acre-feet) (acre-feet) 907.00 0.000 0.000 0.000 908.00 0.055 0.028 0.028 909.00 0.208 0.131 0.159 910.00 0.413 0.310 0.469 911.00 0.573 0.493 0.962 912.00 0.709 0.641 1.603 Device Routing Invert Outlet Devices #1 Primary 907.00'15.0" Round Culvert L= 48.8' RCP, end-section conforming to fill, Ke= 0.500 Inlet / Outlet Invert= 907.00' / 906.00' S= 0.0205 '/' Cc= 0.900 n= 0.013 Concrete pipe, straight & clean, Flow Area= 1.23 sf #2 Primary 911.22'Asymmetrical Weir, C= 3.27 Offset (feet) 0.00 12.00 18.00 28.00 49.00 88.00 Height (feet) 1.35 0.02 0.00 0.15 0.70 1.35 Primary OutFlow Max=1.75 cfs @ 12.56 hrs HW=907.65' TW=0.00' (Dynamic Tailwater) 1=Culvert (Inlet Controls 1.75 cfs @ 2.73 fps) 2=Asymmetrical Weir ( Controls 0.00 cfs) MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 238HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Pond 34P: West - South (existing) Inflow Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)2 1 0 Inflow Area=8.382 ac Peak Elev=907.65' Storage=0.011 af 2.19 cfs 1.75 cfs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 239HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Pond 35P: Drop MH [57] Hint: Peaked at 895.38' (Flood elevation advised) Inflow Area = 1.357 ac, 69.40% Impervious, Inflow Depth = 1.36" for 2y 24hr event Inflow = 1.10 cfs @ 12.41 hrs, Volume= 0.153 af Outflow = 1.10 cfs @ 12.41 hrs, Volume= 0.153 af, Atten= 0%, Lag= 0.0 min Primary = 1.10 cfs @ 12.41 hrs, Volume= 0.153 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 895.38' @ 12.41 hrs Device Routing Invert Outlet Devices #1 Primary 894.80'12.0" Round Culvert L= 150.0' RCP, sq.cut end projecting, Ke= 0.500 Inlet / Outlet Invert= 894.80' / 894.00' S= 0.0053 '/' Cc= 0.900 n= 0.011 Concrete pipe, straight & clean, Flow Area= 0.79 sf Primary OutFlow Max=1.10 cfs @ 12.41 hrs HW=895.38' TW=891.51' (Dynamic Tailwater) 1=Culvert (Barrel Controls 1.10 cfs @ 3.38 fps) Pond 35P: Drop MH Inflow Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)1 0 Inflow Area=1.357 ac Peak Elev=895.38' 12.0" Round Culvert n=0.011 L=150.0' S=0.0053 '/' 1.10 cfs 1.10 cfs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 240HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Pond 36P: Drop MH [57] Hint: Peaked at 894.99' (Flood elevation advised) Inflow Area = 2.793 ac, 66.00% Impervious, Inflow Depth = 0.99" for 2y 24hr event Inflow = 0.77 cfs @ 13.02 hrs, Volume= 0.230 af Outflow = 0.77 cfs @ 13.02 hrs, Volume= 0.230 af, Atten= 0%, Lag= 0.0 min Primary = 0.77 cfs @ 13.02 hrs, Volume= 0.230 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 894.99' @ 13.02 hrs Device Routing Invert Outlet Devices #1 Primary 894.50'12.0" Round Culvert L= 100.0' RCP, sq.cut end projecting, Ke= 0.500 Inlet / Outlet Invert= 894.50' / 894.00' S= 0.0050 '/' Cc= 0.900 n= 0.011 Concrete pipe, straight & clean, Flow Area= 0.79 sf Primary OutFlow Max=0.77 cfs @ 13.02 hrs HW=894.99' TW=892.06' (Dynamic Tailwater) 1=Culvert (Barrel Controls 0.77 cfs @ 2.97 fps) Pond 36P: Drop MH Inflow Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.85 0.8 0.75 0.7 0.65 0.6 0.55 0.5 0.45 0.4 0.35 0.3 0.25 0.2 0.15 0.1 0.05 0 Inflow Area=2.793 ac Peak Elev=894.99' 12.0" Round Culvert n=0.011 L=100.0' S=0.0050 '/' 0.77 cfs 0.77 cfs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 241HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Pond 40.1P: South East Inflow Area = 3.753 ac, 81.66% Impervious, Inflow Depth = 2.37" for 2y 24hr event Inflow = 11.92 cfs @ 12.13 hrs, Volume= 0.740 af Outflow = 0.78 cfs @ 13.20 hrs, Volume= 0.740 af, Atten= 93%, Lag= 63.8 min Discarded = 0.07 cfs @ 6.46 hrs, Volume= 0.448 af Primary = 0.71 cfs @ 13.20 hrs, Volume= 0.292 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 895.01' @ 13.20 hrs Surf.Area= 51,048 sf Storage= 20,705 cf Plug-Flow detention time= 1,169.7 min calculated for 0.740 af (100% of inflow) Center-of-Mass det. time= 1,169.8 min ( 1,937.2 - 767.4 ) Volume Invert Avail.Storage Storage Description #1 893.70' 34,978 cf Custom Stage Data (Prismatic) Listed below (Recalc) 117,410 cf Overall - 818 cf Embedded = 116,593 cf x 30.0% Voids #2 896.00' 40,511 cf Custom Stage Data (Prismatic) Listed below (Recalc) 102,096 cf Overall - 818 cf Embedded = 101,278 cf x 40.0% Voids #3 893.70' 818 cf 8.0" Round Pipe Storage Inside #1 L= 2,343.0' #4 896.00' 818 cf 8.0" Round Pipe Storage Inside #2 L= 2,343.0' 77,125 cf Total Available Storage Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 893.70 51,048 0 0 896.00 51,048 117,410 117,410 Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 896.00 51,048 0 0 898.00 51,048 102,096 102,096 Device Routing Invert Outlet Devices #1 Primary 893.70'12.0" Round Culvert L= 260.0' RCP, sq.cut end projecting, Ke= 0.500 Inlet / Outlet Invert= 893.70' / 891.88' S= 0.0070 '/' Cc= 0.900 n= 0.011 Concrete pipe, straight & clean, Flow Area= 0.79 sf #2 Device 1 894.50'8.0" Vert. Orifice/Grate C= 0.600 #3 Device 1 896.67'12.0" Vert. Orifice/Grate C= 0.600 #4 Discarded 893.70'0.060 in/hr Exfiltration over Surface area Phase-In= 0.01' Discarded OutFlow Max=0.07 cfs @ 6.46 hrs HW=893.71' (Free Discharge) 4=Exfiltration (Exfiltration Controls 0.07 cfs) Primary OutFlow Max=0.71 cfs @ 13.20 hrs HW=895.01' TW=0.00' (Dynamic Tailwater) 1=Culvert (Passes 0.71 cfs of 3.41 cfs potential flow) 2=Orifice/Grate (Orifice Controls 0.71 cfs @ 2.44 fps) 3=Orifice/Grate ( Controls 0.00 cfs) MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 242HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Pond 40.1P: South East Inflow Outflow Discarded Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)13 12 11 10 9 8 7 6 5 4 3 2 1 0 Inflow Area=3.753 ac Peak Elev=895.01' Storage=20,705 cf 11.92 cfs 0.78 cfs 0.07 cfs0.71 cfs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 243HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Pond 40.2P: South Central Inflow Area = 4.604 ac, 76.19% Impervious, Inflow Depth = 2.29" for 2y 24hr event Inflow = 14.15 cfs @ 12.13 hrs, Volume= 0.877 af Outflow = 0.22 cfs @ 18.07 hrs, Volume= 0.877 af, Atten= 98%, Lag= 356.4 min Discarded = 0.13 cfs @ 7.80 hrs, Volume= 0.810 af Primary = 0.09 cfs @ 18.07 hrs, Volume= 0.067 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 895.96' @ 18.07 hrs Surf.Area= 94,313 sf Storage= 28,248 cf Plug-Flow detention time= 1,691.6 min calculated for 0.877 af (100% of inflow) Center-of-Mass det. time= 1,691.6 min ( 2,461.3 - 769.7 ) Volume Invert Avail.Storage Storage Description #1 895.00' 64,623 cf Custom Stage Data (Prismatic) Listed below (Recalc) 216,920 cf Overall - 1,511 cf Embedded = 215,409 cf x 30.0% Voids #2 897.30' 74,846 cf Custom Stage Data (Prismatic) Listed below (Recalc) 188,626 cf Overall - 1,511 cf Embedded = 187,115 cf x 40.0% Voids #3 895.00' 1,511 cf 8.0" Round Pipe Storage Inside #1 L= 4,328.0' #4 897.30' 1,511 cf 8.0" Round Pipe Storage Inside #2 L= 4,328.0' 142,490 cf Total Available Storage Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 895.00 94,313 0 0 897.30 94,313 216,920 216,920 Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 897.30 94,313 0 0 899.30 94,313 188,626 188,626 Device Routing Invert Outlet Devices #1 Primary 895.00'12.0" Round Culvert L= 250.0' RCP, sq.cut end projecting, Ke= 0.500 Inlet / Outlet Invert= 895.00' / 893.25' S= 0.0070 '/' Cc= 0.900 n= 0.011 Concrete pipe, straight & clean, Flow Area= 0.79 sf #2 Device 1 895.80'8.0" Vert. Orifice/Grate C= 0.600 #3 Device 1 897.97'8.0" Vert. Orifice/Grate C= 0.600 #4 Discarded 895.00'0.060 in/hr Exfiltration over Surface area Phase-In= 0.01' Discarded OutFlow Max=0.13 cfs @ 7.80 hrs HW=895.01' (Free Discharge) 4=Exfiltration (Exfiltration Controls 0.13 cfs) Primary OutFlow Max=0.09 cfs @ 18.07 hrs HW=895.96' TW=0.00' (Dynamic Tailwater) 1=Culvert (Passes 0.09 cfs of 2.59 cfs potential flow) 2=Orifice/Grate (Orifice Controls 0.09 cfs @ 1.37 fps) 3=Orifice/Grate ( Controls 0.00 cfs) MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 244HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Pond 40.2P: South Central Inflow Outflow Discarded Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 Inflow Area=4.604 ac Peak Elev=895.96' Storage=28,248 cf 14.15 cfs 0.22 cfs 0.13 cfs 0.09 cfs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 245HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Pond 40.3P: South Inflow Area = 5.237 ac, 69.55% Impervious, Inflow Depth = 2.19" for 2y 24hr event Inflow = 15.44 cfs @ 12.13 hrs, Volume= 0.954 af Outflow = 1.00 cfs @ 13.22 hrs, Volume= 0.954 af, Atten= 94%, Lag= 65.0 min Discarded = 0.08 cfs @ 6.45 hrs, Volume= 0.538 af Primary = 0.91 cfs @ 13.22 hrs, Volume= 0.417 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 898.92' @ 13.22 hrs Surf.Area= 60,232 sf Storage= 26,423 cf Plug-Flow detention time= 1,124.6 min calculated for 0.954 af (100% of inflow) Center-of-Mass det. time= 1,124.6 min ( 1,897.3 - 772.7 ) Volume Invert Avail.Storage Storage Description #1 897.50' 41,271 cf Custom Stage Data (Prismatic) Listed below (Recalc) 138,534 cf Overall - 965 cf Embedded = 137,569 cf x 30.0% Voids #2 899.80' 47,800 cf Custom Stage Data (Prismatic) Listed below (Recalc) 120,464 cf Overall - 965 cf Embedded = 119,499 cf x 40.0% Voids #3 897.50' 965 cf 8.0" Round Pipe Storage Inside #1 L= 2,764.0' #4 899.80' 965 cf 8.0" Round Pipe Storage Inside #2 L= 2,764.0' 91,000 cf Total Available Storage Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 897.50 60,232 0 0 899.80 60,232 138,534 138,534 Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 899.80 60,232 0 0 901.80 60,232 120,464 120,464 Device Routing Invert Outlet Devices #1 Primary 897.50'12.0" Round Culvert L= 175.0' RCP, sq.cut end projecting, Ke= 0.500 Inlet / Outlet Invert= 897.50' / 896.27' S= 0.0070 '/' Cc= 0.900 n= 0.011 Concrete pipe, straight & clean, Flow Area= 0.79 sf #2 Device 1 898.30'8.0" Vert. Orifice/Grate C= 0.600 #3 Device 1 900.47'8.0" Vert. Orifice/Grate C= 0.600 #4 Discarded 897.50'0.060 in/hr Exfiltration over Surface area Phase-In= 0.01' Discarded OutFlow Max=0.08 cfs @ 6.45 hrs HW=897.51' (Free Discharge) 4=Exfiltration (Exfiltration Controls 0.08 cfs) Primary OutFlow Max=0.91 cfs @ 13.22 hrs HW=898.92' TW=0.00' (Dynamic Tailwater) 1=Culvert (Passes 0.91 cfs of 3.48 cfs potential flow) 2=Orifice/Grate (Orifice Controls 0.91 cfs @ 2.69 fps) 3=Orifice/Grate ( Controls 0.00 cfs) MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 246HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Pond 40.3P: South Inflow Outflow Discarded Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 Inflow Area=5.237 ac Peak Elev=898.92' Storage=26,423 cf 15.44 cfs 1.00 cfs 0.08 cfs0.91 cfs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 247HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Pond 41.1P: South East Inflow Area = 1.607 ac, 85.30% Impervious, Inflow Depth = 2.42" for 2y 24hr event Inflow = 5.21 cfs @ 12.13 hrs, Volume= 0.324 af Outflow = 0.06 cfs @ 9.18 hrs, Volume= 0.324 af, Atten= 99%, Lag= 0.0 min Discarded = 0.06 cfs @ 9.18 hrs, Volume= 0.324 af Primary = 0.00 cfs @ 0.00 hrs, Volume= 0.000 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 888.74' @ 18.14 hrs Surf.Area= 45,024 sf Storage= 10,444 cf Plug-Flow detention time= 1,474.8 min calculated for 0.324 af (100% of inflow) Center-of-Mass det. time= 1,474.8 min ( 2,240.8 - 766.0 ) Volume Invert Avail.Storage Storage Description #1 888.00' 30,850 cf Custom Stage Data (Prismatic) Listed below (Recalc) 103,555 cf Overall - 721 cf Embedded = 102,834 cf x 30.0% Voids #2 890.30' 35,731 cf Custom Stage Data (Prismatic) Listed below (Recalc) 90,048 cf Overall - 721 cf Embedded = 89,327 cf x 40.0% Voids #3 888.00' 721 cf 8.0" Round Pipe Storage Inside #1 L= 2,066.0' #4 890.30' 721 cf 8.0" Round Pipe Storage Inside #2 L= 2,066.0' 68,023 cf Total Available Storage Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 888.00 45,024 0 0 890.30 45,024 103,555 103,555 Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 890.30 45,024 0 0 892.30 45,024 90,048 90,048 Device Routing Invert Outlet Devices #1 Primary 888.00'12.0" Round Culvert L= 70.0' RCP, sq.cut end projecting, Ke= 0.500 Inlet / Outlet Invert= 888.00' / 887.51' S= 0.0070 '/' Cc= 0.900 n= 0.011 Concrete pipe, straight & clean, Flow Area= 0.79 sf #2 Device 1 888.80'8.0" Vert. Orifice/Grate C= 0.600 #3 Device 1 890.97'8.0" Vert. Orifice/Grate C= 0.600 #4 Discarded 888.00'0.060 in/hr Exfiltration over Surface area Phase-In= 0.01' Discarded OutFlow Max=0.06 cfs @ 9.18 hrs HW=888.01' (Free Discharge) 4=Exfiltration (Exfiltration Controls 0.06 cfs) Primary OutFlow Max=0.00 cfs @ 0.00 hrs HW=888.00' TW=0.00' (Dynamic Tailwater) 1=Culvert ( Controls 0.00 cfs) 2=Orifice/Grate ( Controls 0.00 cfs) 3=Orifice/Grate ( Controls 0.00 cfs) MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 248HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Pond 41.1P: South East Inflow Outflow Discarded Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)5 4 3 2 1 0 Inflow Area=1.607 ac Peak Elev=888.74' Storage=10,444 cf 5.21 cfs 0.06 cfs 0.06 cfs 0.00 cfs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 249HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Pond 41.2P: South Central Inflow Area = 3.591 ac, 80.17% Impervious, Inflow Depth = 2.34" for 2y 24hr event Inflow = 11.30 cfs @ 12.13 hrs, Volume= 0.702 af Outflow = 5.53 cfs @ 12.29 hrs, Volume= 0.702 af, Atten= 51%, Lag= 9.6 min Discarded = 0.02 cfs @ 12.27 hrs, Volume= 0.146 af Primary = 5.51 cfs @ 12.29 hrs, Volume= 0.555 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 883.79' @ 12.29 hrs Surf.Area= 16,787 sf Storage= 11,745 cf Plug-Flow detention time= 400.6 min calculated for 0.702 af (100% of inflow) Center-of-Mass det. time= 400.6 min ( 1,168.6 - 768.0 ) Volume Invert Avail.Storage Storage Description #1 881.50' 11,502 cf Custom Stage Data (Prismatic) Listed below (Recalc) 38,610 cf Overall - 269 cf Embedded = 38,341 cf x 30.0% Voids #2 883.80' 13,322 cf Custom Stage Data (Prismatic) Listed below (Recalc) 33,574 cf Overall - 269 cf Embedded = 33,305 cf x 40.0% Voids #3 881.50' 269 cf 8.0" Round Pipe Storage Inside #1 L= 770.0' #4 883.80' 269 cf 8.0" Round Pipe Storage Inside #2 L= 770.0' 25,362 cf Total Available Storage Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 881.50 16,787 0 0 883.80 16,787 38,610 38,610 Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 883.80 16,787 0 0 885.80 16,787 33,574 33,574 Device Routing Invert Outlet Devices #1 Primary 881.50'18.0" Round Culvert L= 22.0' RCP, sq.cut end projecting, Ke= 0.500 Inlet / Outlet Invert= 881.50' / 881.28' S= 0.0100 '/' Cc= 0.900 n= 0.011 Concrete pipe, straight & clean, Flow Area= 1.77 sf #2 Device 1 882.30'15.0" Vert. Orifice/Grate C= 0.600 #3 Device 1 884.47'18.0" Vert. Orifice/Grate C= 0.600 #4 Discarded 881.50'0.060 in/hr Exfiltration over Surface area Phase-In= 0.01' Discarded OutFlow Max=0.02 cfs @ 12.27 hrs HW=883.79' (Free Discharge) 4=Exfiltration (Exfiltration Controls 0.02 cfs) Primary OutFlow Max=5.51 cfs @ 12.29 hrs HW=883.79' TW=0.00' (Dynamic Tailwater) 1=Culvert (Passes 5.51 cfs of 10.58 cfs potential flow) 2=Orifice/Grate (Orifice Controls 5.51 cfs @ 4.49 fps) 3=Orifice/Grate ( Controls 0.00 cfs) MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 250HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Pond 41.2P: South Central Inflow Outflow Discarded Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)12 11 10 9 8 7 6 5 4 3 2 1 0 Inflow Area=3.591 ac Peak Elev=883.79' Storage=11,745 cf 11.30 cfs 5.53 cfs 0.02 cfs 5.51 cfs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 251HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Pond 41.3P: South West Inflow Area = 0.686 ac, 93.81% Impervious, Inflow Depth = 2.55" for 2y 24hr event Inflow = 2.33 cfs @ 12.13 hrs, Volume= 0.146 af Outflow = 0.03 cfs @ 9.22 hrs, Volume= 0.146 af, Atten= 99%, Lag= 0.0 min Discarded = 0.03 cfs @ 9.22 hrs, Volume= 0.146 af Primary = 0.00 cfs @ 0.00 hrs, Volume= 0.000 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 890.41' @ 18.11 hrs Surf.Area= 22,024 sf Storage= 4,610 cf Plug-Flow detention time= 1,332.0 min calculated for 0.146 af (100% of inflow) Center-of-Mass det. time= 1,332.0 min ( 2,094.9 - 762.9 ) Volume Invert Avail.Storage Storage Description #1 889.75' 15,091 cf Custom Stage Data (Prismatic) Listed below (Recalc) 50,655 cf Overall - 353 cf Embedded = 50,303 cf x 30.0% Voids #2 892.05' 17,478 cf Custom Stage Data (Prismatic) Listed below (Recalc) 44,048 cf Overall - 353 cf Embedded = 43,695 cf x 40.0% Voids #3 889.75' 353 cf 8.0" Round Pipe Storage Inside #1 L= 1,010.0' #4 892.05' 353 cf 8.0" Round Pipe Storage Inside #2 L= 1,010.0' 33,274 cf Total Available Storage Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 889.75 22,024 0 0 892.05 22,024 50,655 50,655 Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 892.05 22,024 0 0 894.05 22,024 44,048 44,048 Device Routing Invert Outlet Devices #1 Primary 889.75'12.0" Round Culvert L= 45.0' RCP, sq.cut end projecting, Ke= 0.500 Inlet / Outlet Invert= 889.75' / 889.43' S= 0.0071 '/' Cc= 0.900 n= 0.011 Concrete pipe, straight & clean, Flow Area= 0.79 sf #2 Device 1 890.55'8.0" Vert. Orifice/Grate C= 0.600 #3 Device 1 892.72'8.0" Vert. Orifice/Grate C= 0.600 #4 Discarded 889.75'0.060 in/hr Exfiltration over Surface area Phase-In= 0.01' Discarded OutFlow Max=0.03 cfs @ 9.22 hrs HW=889.76' (Free Discharge) 4=Exfiltration (Exfiltration Controls 0.03 cfs) Primary OutFlow Max=0.00 cfs @ 0.00 hrs HW=889.75' TW=0.00' (Dynamic Tailwater) 1=Culvert ( Controls 0.00 cfs) 2=Orifice/Grate ( Controls 0.00 cfs) 3=Orifice/Grate ( Controls 0.00 cfs) MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 252HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Pond 41.3P: South West Inflow Outflow Discarded Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)2 1 0 Inflow Area=0.686 ac Peak Elev=890.41' Storage=4,610 cf 2.33 cfs 0.03 cfs 0.03 cfs 0.00 cfs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 253HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Pond 44P: Wetland 4 Inflow Area = 24.628 ac, 36.70% Impervious, Inflow Depth = 0.54" for 2y 24hr event Inflow = 4.01 cfs @ 12.26 hrs, Volume= 1.110 af Outflow = 4.00 cfs @ 12.27 hrs, Volume= 1.109 af, Atten= 0%, Lag= 0.9 min Primary = 4.00 cfs @ 12.27 hrs, Volume= 1.109 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 884.33' @ 12.27 hrs Surf.Area= 1,593 sf Storage= 401 cf Plug-Flow detention time= 4.5 min calculated for 1.109 af (100% of inflow) Center-of-Mass det. time= 3.9 min ( 982.9 - 979.0 ) Volume Invert Avail.Storage Storage Description #1 884.00' 37,633 cf Custom Stage Data (Prismatic) Listed below (Recalc) Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 884.00 870 0 0 884.50 1,980 713 713 885.00 3,500 1,370 2,083 886.00 7,800 5,650 7,733 887.00 14,000 10,900 18,633 888.00 24,000 19,000 37,633 Device Routing Invert Outlet Devices #1 Primary 884.03'Asymmetrical Weir, C= 3.27 Offset (feet) 0.00 51.00 133.60 176.00 217.30 239.00 Elev. (feet) 889.78 886.05 884.03 885.84 889.00 889.78 Primary OutFlow Max=4.00 cfs @ 12.27 hrs HW=884.33' TW=0.00' (Dynamic Tailwater) 1=Asymmetrical Weir (Weir Controls 4.00 cfs @ 0.71 fps) MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 254HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Pond 44P: Wetland 4 Inflow Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)4 3 2 1 0 Inflow Area=24.628 ac Peak Elev=884.33' Storage=401 cf 4.01 cfs 4.00 cfs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 255HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Pond 46P: Triangle Basin Inflow Area = 2.229 ac, 19.60% Impervious, Inflow Depth = 1.44" for 2y 24hr event Inflow = 4.04 cfs @ 12.17 hrs, Volume= 0.268 af Outflow = 3.67 cfs @ 12.22 hrs, Volume= 0.268 af, Atten= 9%, Lag= 3.1 min Discarded = 0.00 cfs @ 2.98 hrs, Volume= 0.013 af Primary = 3.67 cfs @ 12.22 hrs, Volume= 0.255 af Secondary = 0.00 cfs @ 0.00 hrs, Volume= 0.000 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 886.61' @ 12.22 hrs Surf.Area= 1,586 sf Storage= 1,083 cf Plug-Flow detention time= 93.7 min calculated for 0.268 af (100% of inflow) Center-of-Mass det. time= 93.7 min ( 904.6 - 810.9 ) Volume Invert Avail.Storage Storage Description #1 884.37' 1,087 cf Sand section (Prismatic) Listed below (Recalc) 3,648 cf Overall - 24 cf Embedded = 3,623 cf x 30.0% Voids #2 884.37' 24 cf 8.0" Round Pipe Storage Inside #1 L= 70.0' #3 886.67' 159 cf Topsoil (Prismatic) Listed below (Recalc) 793 cf Overall x 20.0% Voids #4 887.17' 14,801 cf Open pond (Prismatic) Listed below (Recalc) 16,071 cf Total Available Storage Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 884.37 1,586 0 0 886.67 1,586 3,648 3,648 Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 886.67 1,586 0 0 887.17 1,586 793 793 Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 887.17 1,586 0 0 890.90 6,350 14,801 14,801 Device Routing Invert Outlet Devices #1 Primary 884.37'18.0" Round Culvert L= 125.0' RCP, sq.cut end projecting, Ke= 0.500 Inlet / Outlet Invert= 884.37' / 884.00' S= 0.0030 '/' Cc= 0.900 n= 0.011 Concrete pipe, straight & clean, Flow Area= 1.77 sf #2 Device 1 885.17'12.0" Vert. Orifice/Grate C= 0.600 #3 Device 1 887.41'12.0" Vert. Orifice/Grate C= 0.600 #4 Secondary 890.75'20.0' long x 5.0' breadth Broad-Crested Rectangular Weir Head (feet) 0.20 0.40 0.60 0.80 1.00 1.20 1.40 1.60 1.80 2.00 2.50 3.00 3.50 4.00 4.50 5.00 5.50 Coef. (English) 2.34 2.50 2.70 2.68 2.68 2.66 2.65 2.65 2.65 MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 256HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC 2.65 2.67 2.66 2.68 2.70 2.74 2.79 2.88 #5 Discarded 884.37'0.060 in/hr Exfiltration over Surface area Phase-In= 0.01' Discarded OutFlow Max=0.00 cfs @ 2.98 hrs HW=884.38' (Free Discharge) 5=Exfiltration (Exfiltration Controls 0.00 cfs) Primary OutFlow Max=3.66 cfs @ 12.22 hrs HW=886.61' TW=0.00' (Dynamic Tailwater) 1=Culvert (Passes 3.66 cfs of 8.43 cfs potential flow) 2=Orifice/Grate (Orifice Controls 3.66 cfs @ 4.66 fps) 3=Orifice/Grate ( Controls 0.00 cfs) Secondary OutFlow Max=0.00 cfs @ 0.00 hrs HW=884.37' TW=0.00' (Dynamic Tailwater) 4=Broad-Crested Rectangular Weir ( Controls 0.00 cfs) Pond 46P: Triangle Basin Inflow Outflow Discarded Primary Secondary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)4 3 2 1 0 Inflow Area=2.229 ac Peak Elev=886.61' Storage=1,083 cf 4.04 cfs 3.67 cfs 0.00 cfs 3.67 cfs 0.00 cfs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 257HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Pond 47P: Bluff Creek - West Basin Inflow Area = 7.031 ac, 70.52% Impervious, Inflow Depth = 2.15" for 2y 24hr event Inflow = 20.85 cfs @ 12.10 hrs, Volume= 1.261 af Outflow = 0.57 cfs @ 15.09 hrs, Volume= 1.261 af, Atten= 97%, Lag= 179.5 min Discarded = 0.15 cfs @ 8.34 hrs, Volume= 0.959 af Primary = 0.42 cfs @ 15.09 hrs, Volume= 0.302 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 909.38' @ 15.09 hrs Surf.Area= 107,300 sf Storage= 39,068 cf Plug-Flow detention time= 1,540.1 min calculated for 1.261 af (100% of inflow) Center-of-Mass det. time= 1,540.1 min ( 2,320.2 - 780.2 ) Volume Invert Avail.Storage Storage Description #1 908.20' 73,521 cf Custom Stage Data (Prismatic) Listed below (Recalc) 246,790 cf Overall - 1,719 cf Embedded = 245,071 cf x 30.0% Voids #2 910.50' 85,152 cf Custom Stage Data (Prismatic) Listed below (Recalc) 214,600 cf Overall - 1,719 cf Embedded = 212,881 cf x 40.0% Voids #3 908.20' 1,719 cf 8.0" Round Pipe Storage Inside #1 L= 4,925.0' #4 910.50' 1,719 cf 8.0" Round Pipe Storage Inside #2 L= 4,925.0' 162,112 cf Total Available Storage Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 908.20 107,300 0 0 910.50 107,300 246,790 246,790 Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 910.50 107,300 0 0 912.50 107,300 214,600 214,600 Device Routing Invert Outlet Devices #1 Primary 908.20'12.0" Round Culvert L= 307.0' RCP, square edge headwall, Ke= 0.500 Inlet / Outlet Invert= 908.20' / 905.13' S= 0.0100 '/' Cc= 0.900 n= 0.011 Concrete pipe, straight & clean, Flow Area= 0.79 sf #2 Device 1 909.00'8.0" Vert. Orifice/Grate C= 0.600 #3 Device 1 911.24'8.0" Vert. Orifice/Grate C= 0.600 #4 Discarded 908.20'0.060 in/hr Exfiltration over Surface area Phase-In= 0.01' Discarded OutFlow Max=0.15 cfs @ 8.34 hrs HW=908.21' (Free Discharge) 4=Exfiltration (Exfiltration Controls 0.15 cfs) Primary OutFlow Max=0.42 cfs @ 15.09 hrs HW=909.38' TW=0.00' (Dynamic Tailwater) 1=Culvert (Passes 0.42 cfs of 3.11 cfs potential flow) 2=Orifice/Grate (Orifice Controls 0.42 cfs @ 2.09 fps) 3=Orifice/Grate ( Controls 0.00 cfs) MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 258HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Pond 47P: Bluff Creek - West Basin Inflow Outflow Discarded Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 Inflow Area=7.031 ac Peak Elev=909.38' Storage=39,068 cf 20.85 cfs 0.57 cfs 0.15 cfs 0.42 cfs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 259HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Pond 48P: Bluff Creek - East Basin Inflow Area = 3.441 ac, 81.34% Impervious, Inflow Depth = 2.36" for 2y 24hr event Inflow = 13.85 cfs @ 12.07 hrs, Volume= 0.677 af Outflow = 0.56 cfs @ 13.55 hrs, Volume= 0.677 af, Atten= 96%, Lag= 88.5 min Discarded = 0.07 cfs @ 6.53 hrs, Volume= 0.454 af Primary = 0.49 cfs @ 13.55 hrs, Volume= 0.223 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 896.56' @ 13.55 hrs Surf.Area= 52,085 sf Storage= 19,491 cf Plug-Flow detention time= 1,276.2 min calculated for 0.677 af (100% of inflow) Center-of-Mass det. time= 1,276.3 min ( 2,039.2 - 762.9 ) Volume Invert Avail.Storage Storage Description #1 895.35' 35,688 cf Custom Stage Data (Prismatic) Listed below (Recalc) 119,795 cf Overall - 834 cf Embedded = 118,961 cf x 30.0% Voids #2 897.65' 41,334 cf Custom Stage Data (Prismatic) Listed below (Recalc) 104,170 cf Overall - 834 cf Embedded = 103,336 cf x 40.0% Voids #3 895.35' 834 cf 8.0" Round Pipe Storage Inside #1 L= 2,390.0' #4 897.65' 834 cf 8.0" Round Pipe Storage Inside #2 L= 2,390.0' 78,691 cf Total Available Storage Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 895.35 52,085 0 0 897.65 52,085 119,795 119,795 Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 897.65 52,085 0 0 899.65 52,085 104,170 104,170 Device Routing Invert Outlet Devices #1 Primary 895.35'12.0" Round Culvert L= 637.0' RCP, square edge headwall, Ke= 0.500 Inlet / Outlet Invert= 895.35' / 888.98' S= 0.0100 '/' Cc= 0.900 n= 0.011 Concrete pipe, straight & clean, Flow Area= 0.79 sf #2 Device 1 896.15'8.0" Vert. Orifice/Grate C= 0.600 #3 Device 1 898.39'8.0" Vert. Orifice/Grate C= 0.600 #4 Discarded 895.35'0.060 in/hr Exfiltration over Surface area Phase-In= 0.01' Discarded OutFlow Max=0.07 cfs @ 6.53 hrs HW=895.36' (Free Discharge) 4=Exfiltration (Exfiltration Controls 0.07 cfs) Primary OutFlow Max=0.49 cfs @ 13.55 hrs HW=896.56' TW=0.00' (Dynamic Tailwater) 1=Culvert (Passes 0.49 cfs of 3.19 cfs potential flow) 2=Orifice/Grate (Orifice Controls 0.49 cfs @ 2.18 fps) 3=Orifice/Grate ( Controls 0.00 cfs) MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 260HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Pond 48P: Bluff Creek - East Basin Inflow Outflow Discarded Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 Inflow Area=3.441 ac Peak Elev=896.56' Storage=19,491 cf 13.85 cfs 0.56 cfs 0.07 cfs0.49 cfs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 261HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Pond 48P(2): Bluff Creek - East Basin Inflow Area = 2.152 ac, 68.04% Impervious, Inflow Depth = 2.16" for 2y 24hr event Inflow = 6.28 cfs @ 12.13 hrs, Volume= 0.388 af Outflow = 0.72 cfs @ 12.71 hrs, Volume= 0.388 af, Atten= 88%, Lag= 34.8 min Discarded = 0.03 cfs @ 6.46 hrs, Volume= 0.208 af Primary = 0.69 cfs @ 12.71 hrs, Volume= 0.180 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 897.06' @ 12.71 hrs Surf.Area= 24,429 sf Storage= 9,848 cf Plug-Flow detention time= 990.0 min calculated for 0.388 af (100% of inflow) Center-of-Mass det. time= 990.1 min ( 1,763.5 - 773.4 ) Volume Invert Avail.Storage Storage Description #1 895.75' 16,739 cf Custom Stage Data (Prismatic) Listed below (Recalc) 56,187 cf Overall - 391 cf Embedded = 55,795 cf x 30.0% Voids #2 898.05' 19,387 cf Custom Stage Data (Prismatic) Listed below (Recalc) 48,858 cf Overall - 391 cf Embedded = 48,467 cf x 40.0% Voids #3 895.75' 391 cf 8.0" Round Pipe Storage Inside #1 L= 1,121.0' #4 898.05' 391 cf 8.0" Round Pipe Storage Inside #2 L= 1,121.0' 36,908 cf Total Available Storage Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 895.75 24,429 0 0 898.05 24,429 56,187 56,187 Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 898.05 24,429 0 0 900.05 24,429 48,858 48,858 Device Routing Invert Outlet Devices #1 Primary 895.75'8.0" Round Culvert L= 50.0' RCP, square edge headwall, Ke= 0.500 Inlet / Outlet Invert= 895.75' / 895.25' S= 0.0100 '/' Cc= 0.900 n= 0.011 Concrete pipe, straight & clean, Flow Area= 0.35 sf #2 Device 1 896.55'8.0" Vert. Orifice/Grate C= 0.600 #3 Device 1 898.79'8.0" Vert. Orifice/Grate C= 0.600 #4 Discarded 895.75'0.060 in/hr Exfiltration over Surface area Phase-In= 0.01' Discarded OutFlow Max=0.03 cfs @ 6.46 hrs HW=895.76' (Free Discharge) 4=Exfiltration (Exfiltration Controls 0.03 cfs) Primary OutFlow Max=0.69 cfs @ 12.71 hrs HW=897.06' TW=0.00' (Dynamic Tailwater) 1=Culvert (Passes 0.69 cfs of 1.61 cfs potential flow) 2=Orifice/Grate (Orifice Controls 0.69 cfs @ 2.42 fps) 3=Orifice/Grate ( Controls 0.00 cfs) MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 262HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Pond 48P(2): Bluff Creek - East Basin Inflow Outflow Discarded Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)7 6 5 4 3 2 1 0 Inflow Area=2.152 ac Peak Elev=897.06' Storage=9,848 cf 6.28 cfs 0.72 cfs 0.03 cfs 0.69 cfs MN-Snowmelt_10d_100yr 10 day Snowmelt Rainfall=7.20", AMC=4Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 263HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Time span=0.00-360.00 hrs, dt=0.01 hrs, 36001 points Runoff by SCS TR-20 method, UH=SCS, Weighted-Q Reach routing by Dyn-Stor-Ind method - Pond routing by Dyn-Stor-Ind method Runoff Area=228,234 sf 16.43% Impervious Runoff Depth=6.96"Subcatchment 21S: Direct to 21P Tc=10.0 min AMC Adjusted CN=WQ Runoff=1.00 cfs 3.039 af Runoff Area=10,548 sf 0.00% Impervious Runoff Depth=6.96"Subcatchment 22oS: From Lyman Flow Length=57' Slope=0.3330 '/' Tc=5.0 min AMC Adjusted CN=98 Runoff=0.05 cfs 0.140 af Runoff Area=41,671 sf 0.00% Impervious Runoff Depth=6.96"Subcatchment 22S: Direct to Wetland 6 Tc=5.0 min AMC Adjusted CN=98 Runoff=0.18 cfs 0.555 af Runoff Area=59,105 sf 69.40% Impervious Runoff Depth=6.96"Subcatchment 24S: Northwest Tc=10.0 min AMC Adjusted CN=WQ Runoff=0.26 cfs 0.787 af Runoff Area=202,586 sf 45.17% Impervious Runoff Depth=6.96"Subcatchment 25S: West North Tc=10.0 min AMC Adjusted CN=WQ Runoff=0.89 cfs 2.698 af Runoff Area=121,658 sf 66.00% Impervious Runoff Depth=6.96"Subcatchment 28S: Avienda Pkwy - NW Tc=15.0 min AMC Adjusted CN=WQ Runoff=0.53 cfs 1.620 af Runoff Area=1,162 sf 100.00% Impervious Runoff Depth=6.96"Subcatchment 29oS: North Offsite Tc=5.0 min CN=98 Runoff=0.01 cfs 0.015 af Runoff Area=32,839 sf 22.84% Impervious Runoff Depth=6.96"Subcatchment 31S: West Central Flow Length=360' Slope=0.0200 '/' Tc=14.7 min AMC UI Adjusted CN=WQ Runoff=0.14 cfs 0.437 af Runoff Area=115,865 sf 17.26% Impervious Runoff Depth=6.96"Subcatchment 33oS: Offsite West - North Flow Length=431' Tc=7.3 min AMC UI Adjusted CN=WQ Runoff=0.51 cfs 1.543 af Runoff Area=78,153 sf 0.00% Impervious Runoff Depth=6.96"Subcatchment 33S: Direct to Wetland 3 Tc=12.0 min AMC Adjusted CN=WQ Runoff=0.34 cfs 1.041 af Runoff Area=25,470 sf 19.98% Impervious Runoff Depth=6.96"Subcatchment 34dS: Offsite West Direct Tc=10.0 min AMC Adjusted CN=WQ Runoff=0.11 cfs 0.339 af Runoff Area=32,710 sf 8.25% Impervious Runoff Depth=6.96"Subcatchment 34oS: Offsite to West South Flow Length=37' Slope=0.1620 '/' Tc=5.0 min AMC UI Adjusted CN=WQ Runoff=0.14 cfs 0.436 af Runoff Area=2.423 ac 0.00% Impervious Runoff Depth=6.96"Subcatchment 34S: West Woods Flow Length=268' Tc=11.1 min AMC Adjusted CN=98 Runoff=0.46 cfs 1.405 af Runoff Area=3.790 ac 0.00% Impervious Runoff Depth=6.96"Subcatchment 35S: Southwest Flow Length=270' Tc=18.3 min AMC Adjusted CN=98 Runoff=0.72 cfs 2.198 af Runoff Area=1,628 sf 100.00% Impervious Runoff Depth=6.96"Subcatchment 36oS: Southwest Offsite Tc=5.0 min CN=98 Runoff=0.01 cfs 0.022 af Runoff Area=163,468 sf 81.66% Impervious Runoff Depth=6.96"Subcatchment 40.1S: South - East Tc=10.0 min AMC Adjusted CN=WQ Runoff=0.72 cfs 2.177 af MN-Snowmelt_10d_100yr 10 day Snowmelt Rainfall=7.20", AMC=4Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 264HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Runoff Area=200,567 sf 76.19% Impervious Runoff Depth=6.96"Subcatchment 40.2S: South - Central Tc=10.0 min AMC Adjusted CN=WQ Runoff=0.88 cfs 2.671 af Runoff Area=228,145 sf 69.55% Impervious Runoff Depth=6.96"Subcatchment 40.3S: South - West Tc=10.0 min AMC Adjusted CN=WQ Runoff=1.00 cfs 3.038 af Runoff Area=69,984 sf 85.30% Impervious Runoff Depth=6.96"Subcatchment 41.1S: South - East Tc=10.0 min AMC Adjusted CN=WQ Runoff=0.31 cfs 0.932 af Runoff Area=156,419 sf 80.17% Impervious Runoff Depth=6.96"Subcatchment 41.2S: South - Central Tc=10.0 min AMC Adjusted CN=WQ Runoff=0.69 cfs 2.083 af Runoff Area=29,884 sf 93.81% Impervious Runoff Depth=6.96"Subcatchment 41.3S: South - west Tc=10.0 min AMC Adjusted CN=WQ Runoff=0.13 cfs 0.398 af Runoff Area=41,871 sf 0.00% Impervious Runoff Depth=6.96"Subcatchment 42.1S: South Tc=5.0 min AMC Adjusted CN=98 Runoff=0.18 cfs 0.558 af Runoff Area=24,525 sf 0.00% Impervious Runoff Depth=6.96"Subcatchment 42.2S: Southeast Tc=5.0 min AMC Adjusted CN=98 Runoff=0.11 cfs 0.327 af Runoff Area=3.222 ac 0.00% Impervious Runoff Depth=6.96"Subcatchment 43.1S: East Woods Flow Length=530' Tc=15.2 min AMC Adjusted CN=98 Runoff=0.61 cfs 1.869 af Runoff Area=1.862 ac 0.00% Impervious Runoff Depth=6.96"Subcatchment 43.2S: Northeast Woods Flow Length=623' Tc=19.5 min AMC Adjusted CN=98 Runoff=0.35 cfs 1.080 af Runoff Area=441,314 sf 0.00% Impervious Runoff Depth=6.96"Subcatchment 44S: North Woods Flow Length=599' Tc=16.5 min AMC Adjusted CN=98 Runoff=1.93 cfs 5.877 af Runoff Area=206,303 sf 65.51% Impervious Runoff Depth=6.96"Subcatchment 45S: Central - West Tc=10.0 min AMC Adjusted CN=WQ Runoff=0.90 cfs 2.747 af Runoff Area=97,082 sf 19.60% Impervious Runoff Depth=6.96"Subcatchment 46S: South Townhomes Flow Length=701' Tc=12.6 min AMC Adjusted CN=WQ Runoff=0.42 cfs 1.293 af Runoff Area=2.295 ac 80.87% Impervious Runoff Depth=6.96"Subcatchment 47S: Bluff Creek Blvd - West Tc=5.0 min AMC Adjusted CN=WQ Runoff=0.44 cfs 1.331 af Runoff Area=93,721 sf 68.04% Impervious Runoff Depth=6.96"Subcatchment 48.1S: Direct to 48P (2) Tc=10.0 min AMC Adjusted CN=WQ Runoff=0.41 cfs 1.248 af Runoff Area=3.441 ac 81.34% Impervious Runoff Depth=6.96"Subcatchment 48S: Bluff Creek Blvd - East Tc=5.0 min AMC Adjusted CN=WQ Runoff=0.66 cfs 1.996 af Inflow=2.56 cfs 5.773 afReach 20R: Northwest Drainage Outflow=2.56 cfs 5.773 af Avg. Flow Depth=0.32' Max Vel=0.65 fps Inflow=2.56 cfs 5.773 afReach 21R: Lower Wetland 6 n=0.050 L=187.0' S=0.0053 '/' Capacity=3,072.14 cfs Outflow=2.56 cfs 5.773 af MN-Snowmelt_10d_100yr 10 day Snowmelt Rainfall=7.20", AMC=4Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 265HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Inflow=2.20 cfs 7.341 afReach 30R: SW Drainage Outflow=2.20 cfs 7.341 af Inflow=0.83 cfs 2.538 afReach 35R: Direct Runoff Outflow=0.83 cfs 2.538 af Inflow=6.12 cfs 16.041 afReach 40R: South Drainage Outflow=6.12 cfs 16.041 af Inflow=0.83 cfs 2.221 afReach 42.1R: South Outflow=0.83 cfs 2.221 af Inflow=1.21 cfs 1.810 afReach 42.2R: Southeast Outflow=1.21 cfs 1.810 af Inflow=3.60 cfs 10.141 afReach 44R: Wetland 4 Channel Outflow=3.60 cfs 10.141 af Inflow=1.46 cfs 3.185 afReach 48R: Development to Wetland 4 Outflow=1.46 cfs 3.185 af Inflow=10.84 cfs 29.156 afReach 50R: Bluff Creek Drainage Outflow=10.84 cfs 29.156 af Peak Elev=891.38' Storage=19,147 cf Inflow=2.51 cfs 6.287 afPond 21P: North Basin Discarded=0.05 cfs 1.224 af Primary=2.34 cfs 5.063 af Secondary=0.00 cfs 0.000 af Outflow=2.40 cfs 6.287 af Peak Elev=913.87' Storage=3,658 cf Inflow=0.26 cfs 0.787 afPond 24P: Northwest Basin Discarded=0.02 cfs 0.357 af Primary=0.24 cfs 0.430 af Outflow=0.25 cfs 0.787 af Peak Elev=913.84' Storage=5,822 cf Inflow=0.89 cfs 2.698 afPond 25P: West - North Discarded=0.02 cfs 0.512 af Primary=0.85 cfs 2.185 af Outflow=0.87 cfs 2.698 af Peak Elev=910.92' Storage=11,340 cf Inflow=0.53 cfs 1.620 afPond 28P: Avienda Pkwy - NW Basin Discarded=0.04 cfs 0.988 af Primary=0.44 cfs 0.632 af Outflow=0.49 cfs 1.620 af Peak Elev=921.93' Storage=766 cf Inflow=0.14 cfs 0.437 afPond 31P: West South Basin Discarded=0.00 cfs 0.080 af Primary=0.14 cfs 0.357 af Secondary=0.00 cfs 0.000 af Outflow=0.14 cfs 0.437 af Peak Elev=894.93' Inflow=0.85 cfs 2.185 afPond 32P: Drop MH 18.0" Round Culvert n=0.011 L=90.0' S=0.0056 '/' Outflow=0.85 cfs 2.185 af Peak Elev=921.04' Storage=7,480 cf Inflow=0.99 cfs 2.941 afPond 33P: Wetland 3 Primary=0.81 cfs 2.941 af Secondary=0.00 cfs 0.000 af Outflow=0.81 cfs 2.941 af Peak Elev=907.56' Storage=0.009 af Inflow=1.36 cfs 4.782 afPond 34P: West - South (existing) Outflow=1.36 cfs 4.782 af Peak Elev=895.05' Inflow=0.24 cfs 0.430 afPond 35P: Drop MH 12.0" Round Culvert n=0.011 L=150.0' S=0.0053 '/' Outflow=0.24 cfs 0.430 af MN-Snowmelt_10d_100yr 10 day Snowmelt Rainfall=7.20", AMC=4Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 266HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Peak Elev=894.86' Inflow=0.44 cfs 0.632 afPond 36P: Drop MH 12.0" Round Culvert n=0.011 L=100.0' S=0.0050 '/' Outflow=0.44 cfs 0.632 af Peak Elev=894.90' Storage=19,020 cf Inflow=0.72 cfs 2.177 afPond 40.1P: South East Discarded=0.07 cfs 1.585 af Primary=0.48 cfs 0.592 af Outflow=0.55 cfs 2.177 af Peak Elev=895.94' Storage=27,703 cf Inflow=0.88 cfs 2.671 afPond 40.2P: South Central Discarded=0.13 cfs 2.539 af Primary=0.07 cfs 0.132 af Outflow=0.20 cfs 2.671 af Peak Elev=898.83' Storage=24,720 cf Inflow=1.00 cfs 3.038 afPond 40.3P: South Discarded=0.08 cfs 1.923 af Primary=0.74 cfs 1.115 af Outflow=0.82 cfs 3.038 af Peak Elev=888.55' Storage=7,824 cf Inflow=0.31 cfs 0.932 afPond 41.1P: South East Discarded=0.06 cfs 0.932 af Primary=0.00 cfs 0.000 af Outflow=0.06 cfs 0.932 af Peak Elev=882.68' Storage=6,110 cf Inflow=0.69 cfs 2.083 afPond 41.2P: South Central Discarded=0.02 cfs 0.551 af Primary=0.65 cfs 1.532 af Outflow=0.67 cfs 2.083 af Peak Elev=890.16' Storage=2,885 cf Inflow=0.13 cfs 0.398 afPond 41.3P: South West Discarded=0.03 cfs 0.398 af Primary=0.00 cfs 0.000 af Outflow=0.03 cfs 0.398 af Peak Elev=884.30' Storage=364 cf Inflow=3.25 cfs 9.062 afPond 44P: Wetland 4 Outflow=3.25 cfs 9.061 af Peak Elev=885.49' Storage=551 cf Inflow=0.42 cfs 1.293 afPond 46P: Triangle Basin Discarded=0.00 cfs 0.052 af Primary=0.42 cfs 1.241 af Secondary=0.00 cfs 0.000 af Outflow=0.42 cfs 1.293 af Peak Elev=909.42' Storage=40,330 cf Inflow=1.34 cfs 4.078 afPond 47P: Bluff Creek - West Basin Discarded=0.15 cfs 3.249 af Primary=0.50 cfs 0.829 af Outflow=0.65 cfs 4.078 af Peak Elev=896.48' Storage=18,259 cf Inflow=0.66 cfs 1.996 afPond 48P: Bluff Creek - East Basin Discarded=0.07 cfs 1.574 af Primary=0.34 cfs 0.422 af Outflow=0.41 cfs 1.996 af Peak Elev=896.89' Storage=8,596 cf Inflow=0.41 cfs 1.248 afPond 48P(2): Bluff Creek - East Basin Discarded=0.03 cfs 0.779 af Primary=0.35 cfs 0.470 af Outflow=0.38 cfs 1.248 af Total Runoff Area = 79.129 ac Runoff Volume = 45.900 af Average Runoff Depth = 6.96" 60.33% Pervious = 47.742 ac 39.67% Impervious = 31.387 ac MN-Snowmelt_10d_100yr 10 day Snowmelt Rainfall=7.20", AMC=4Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 267HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 21S: Direct to 21P Runoff = 1.00 cfs @ 121.30 hrs, Volume= 3.039 af, Depth= 6.96" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-Snowmelt_10d_100yr 10 day Snowmelt Rainfall=7.20", AMC=4 Area (sf) CN Adj Description 37,500 98 98 Paved parking, HSG D 190,734 80 98 >75% Grass cover, Good, HSG D 228,234 Weighted Average 190,734 80 98 83.57% Pervious Area, AMC Adjusted 37,500 98 98 16.43% Impervious Area, AMC Adjusted Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 10.0 Direct Entry, Subcatchment 21S: Direct to 21P Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)1 0 MN-Snowmelt_10d_100yr 10 day Snowmelt Rainfall=7.20" AMC=4 Runoff Area=228,234 sf Runoff Volume=3.039 af Runoff Depth=6.96" Tc=10.0 min AMC Adjusted CN=WQ 1.00 cfs MN-Snowmelt_10d_100yr 10 day Snowmelt Rainfall=7.20", AMC=4Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 268HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 22oS: From Lyman Runoff = 0.05 cfs @ 121.24 hrs, Volume= 0.140 af, Depth= 6.96" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-Snowmelt_10d_100yr 10 day Snowmelt Rainfall=7.20", AMC=4 Area (sf) CN Adj Description 10,548 78 98 Meadow, non-grazed, HSG D 10,548 Weighted Average 10,548 78 98 100.00% Pervious Area, AMC Adjusted Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 2.1 57 0.3330 0.44 Sheet Flow, Grass: Short n= 0.150 P2= 2.87" 2.9 Direct Entry, Make up to 5 minutes 5.0 57 Total Subcatchment 22oS: From Lyman Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.05 0.048 0.046 0.044 0.042 0.04 0.038 0.036 0.034 0.032 0.03 0.028 0.026 0.024 0.022 0.02 0.018 0.016 0.014 0.012 0.01 0.008 0.006 0.004 0.002 0 MN-Snowmelt_10d_100yr 10 day Snowmelt Rainfall=7.20" AMC=4 Runoff Area=10,548 sf Runoff Volume=0.140 af Runoff Depth=6.96" Flow Length=57' Slope=0.3330 '/' Tc=5.0 min AMC Adjusted CN=98 0.05 cfs MN-Snowmelt_10d_100yr 10 day Snowmelt Rainfall=7.20", AMC=4Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 269HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 22S: Direct to Wetland 6 Runoff = 0.18 cfs @ 121.24 hrs, Volume= 0.555 af, Depth= 6.96" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-Snowmelt_10d_100yr 10 day Snowmelt Rainfall=7.20", AMC=4 Area (sf) CN Adj Description 41,671 80 98 >75% Grass cover, Good, HSG D 41,671 Weighted Average 41,671 80 98 100.00% Pervious Area, AMC Adjusted Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 5.0 Direct Entry, Subcatchment 22S: Direct to Wetland 6 Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.2 0.19 0.18 0.17 0.16 0.15 0.14 0.13 0.12 0.11 0.1 0.09 0.08 0.07 0.06 0.05 0.04 0.03 0.02 0.01 0 MN-Snowmelt_10d_100yr 10 day Snowmelt Rainfall=7.20" AMC=4 Runoff Area=41,671 sf Runoff Volume=0.555 af Runoff Depth=6.96" Tc=5.0 min AMC Adjusted CN=98 0.18 cfs MN-Snowmelt_10d_100yr 10 day Snowmelt Rainfall=7.20", AMC=4Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 270HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 24S: Northwest Runoff = 0.26 cfs @ 121.30 hrs, Volume= 0.787 af, Depth= 6.96" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-Snowmelt_10d_100yr 10 day Snowmelt Rainfall=7.20", AMC=4 Area (sf) CN Adj Description 18,089 80 98 >75% Grass cover, Good, HSG D * 41,016 98 98 Paved parking and roofs, HSG D 59,105 Weighted Average 18,089 80 98 30.60% Pervious Area, AMC Adjusted 41,016 98 98 69.40% Impervious Area, AMC Adjusted Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 10.0 Direct Entry, Subcatchment 24S: Northwest Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.28 0.26 0.24 0.22 0.2 0.18 0.16 0.14 0.12 0.1 0.08 0.06 0.04 0.02 0 MN-Snowmelt_10d_100yr 10 day Snowmelt Rainfall=7.20" AMC=4 Runoff Area=59,105 sf Runoff Volume=0.787 af Runoff Depth=6.96" Tc=10.0 min AMC Adjusted CN=WQ 0.26 cfs MN-Snowmelt_10d_100yr 10 day Snowmelt Rainfall=7.20", AMC=4Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 271HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 25S: West North Runoff = 0.89 cfs @ 121.30 hrs, Volume= 2.698 af, Depth= 6.96" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-Snowmelt_10d_100yr 10 day Snowmelt Rainfall=7.20", AMC=4 Area (sf) CN Adj Description 111,088 80 98 >75% Grass cover, Good, HSG D * 91,498 98 98 Paved parking, & roofs HSG D 202,586 Weighted Average 111,088 80 98 54.83% Pervious Area, AMC Adjusted 91,498 98 98 45.17% Impervious Area, AMC Adjusted Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 10.0 Direct Entry, Subcatchment 25S: West North Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.95 0.9 0.85 0.8 0.75 0.7 0.65 0.6 0.55 0.5 0.45 0.4 0.35 0.3 0.25 0.2 0.15 0.1 0.05 0 MN-Snowmelt_10d_100yr 10 day Snowmelt Rainfall=7.20" AMC=4 Runoff Area=202,586 sf Runoff Volume=2.698 af Runoff Depth=6.96" Tc=10.0 min AMC Adjusted CN=WQ 0.89 cfs MN-Snowmelt_10d_100yr 10 day Snowmelt Rainfall=7.20", AMC=4Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 272HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 28S: Avienda Pkwy - NW Runoff = 0.53 cfs @ 121.35 hrs, Volume= 1.620 af, Depth= 6.96" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-Snowmelt_10d_100yr 10 day Snowmelt Rainfall=7.20", AMC=4 Area (sf) CN Adj Description 41,364 80 98 >75% Grass cover, Good, HSG D 80,294 98 98 Paved roads w/curbs & sewers, HSG D 121,658 Weighted Average 41,364 80 98 34.00% Pervious Area, AMC Adjusted 80,294 98 98 66.00% Impervious Area, AMC Adjusted Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 15.0 Direct Entry, Subcatchment 28S: Avienda Pkwy - NW Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.55 0.5 0.45 0.4 0.35 0.3 0.25 0.2 0.15 0.1 0.05 0 MN-Snowmelt_10d_100yr 10 day Snowmelt Rainfall=7.20" AMC=4 Runoff Area=121,658 sf Runoff Volume=1.620 af Runoff Depth=6.96" Tc=15.0 min AMC Adjusted CN=WQ 0.53 cfs MN-Snowmelt_10d_100yr 10 day Snowmelt Rainfall=7.20", AMC=4Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 273HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 29oS: North Offsite Runoff = 0.01 cfs @ 121.24 hrs, Volume= 0.015 af, Depth= 6.96" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-Snowmelt_10d_100yr 10 day Snowmelt Rainfall=7.20", AMC=4 Area (sf) CN Description 1,162 98 Paved parking, HSG D 1,162 98 100.00% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 5.0 Direct Entry, Subcatchment 29oS: North Offsite Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.005 0.005 0.004 0.004 0.003 0.003 0.002 0.002 0.001 0.001 0.000 0 MN-Snowmelt_10d_100yr 10 day Snowmelt Rainfall=7.20" AMC=4 Runoff Area=1,162 sf Runoff Volume=0.015 af Runoff Depth=6.96" Tc=5.0 min CN=98 0.01 cfs MN-Snowmelt_10d_100yr 10 day Snowmelt Rainfall=7.20", AMC=4Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 274HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 31S: West Central Runoff = 0.14 cfs @ 121.34 hrs, Volume= 0.437 af, Depth= 6.96" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-Snowmelt_10d_100yr 10 day Snowmelt Rainfall=7.20", AMC=4 Area (sf) CN Adj Description 25,339 80 98 >75% Grass cover, Good, HSG D 7,500 98 98 Unconnected roofs, HSG D 32,839 Weighted Average 25,339 80 98 77.16% Pervious Area, AMC Adjusted 7,500 98 98 22.84% Impervious Area, AMC Adjusted 7,500 100.00% Unconnected Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 10.3 100 0.0200 0.16 Sheet Flow, Grass: Short n= 0.150 P2= 2.87" 4.4 260 0.0200 0.99 Shallow Concentrated Flow, Short Grass Pasture Kv= 7.0 fps 14.7 360 Total Subcatchment 31S: West Central Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.16 0.15 0.14 0.13 0.12 0.11 0.1 0.09 0.08 0.07 0.06 0.05 0.04 0.03 0.02 0.01 0 MN-Snowmelt_10d_100yr 10 day Snowmelt Rainfall=7.20" AMC=4 Runoff Area=32,839 sf Runoff Volume=0.437 af Runoff Depth=6.96" Flow Length=360' Slope=0.0200 '/' Tc=14.7 min AMC UI Adjusted CN=WQ 0.14 cfs MN-Snowmelt_10d_100yr 10 day Snowmelt Rainfall=7.20", AMC=4Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 275HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 33oS: Offsite West - North Runoff = 0.51 cfs @ 121.27 hrs, Volume= 1.543 af, Depth= 6.96" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-Snowmelt_10d_100yr 10 day Snowmelt Rainfall=7.20", AMC=4 Area (sf) CN Adj Description 20,000 98 98 Unconnected roofs, HSG D 71,000 80 98 >75% Grass cover, Good, HSG D * 12,720 96 98 Wetland, Good, HSG D 12,145 58 98 Meadow, non-grazed, HSG B 115,865 Weighted Average 95,865 79 98 82.74% Pervious Area, AMC Adjusted 20,000 98 98 17.26% Impervious Area, AMC Adjusted 20,000 100.00% Unconnected Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 5.0 25 0.0200 0.08 Sheet Flow, Grass: Dense n= 0.240 P2= 2.87" 2.3 406 0.0390 2.96 Shallow Concentrated Flow, Grassed Waterway Kv= 15.0 fps 7.3 431 Total Subcatchment 33oS: Offsite West - North Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.55 0.5 0.45 0.4 0.35 0.3 0.25 0.2 0.15 0.1 0.05 0 MN-Snowmelt_10d_100yr 10 day Snowmelt Rainfall=7.20" AMC=4 Runoff Area=115,865 sf Runoff Volume=1.543 af Runoff Depth=6.96" Flow Length=431' Tc=7.3 min AMC UI Adjusted CN=WQ 0.51 cfs MN-Snowmelt_10d_100yr 10 day Snowmelt Rainfall=7.20", AMC=4Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 276HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 33S: Direct to Wetland 3 Runoff = 0.34 cfs @ 121.32 hrs, Volume= 1.041 af, Depth= 6.96" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-Snowmelt_10d_100yr 10 day Snowmelt Rainfall=7.20", AMC=4 Area (sf) CN Adj Description * 29,365 96 98 Wetland, Good, HSG D 48,788 80 98 >75% Grass cover, Good, HSG D 78,153 Weighted Average 78,153 86 98 100.00% Pervious Area, AMC Adjusted Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 12.0 Direct Entry, Subcatchment 33S: Direct to Wetland 3 Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.38 0.36 0.34 0.32 0.3 0.28 0.26 0.24 0.22 0.2 0.18 0.16 0.14 0.12 0.1 0.08 0.06 0.04 0.02 0 MN-Snowmelt_10d_100yr 10 day Snowmelt Rainfall=7.20" AMC=4 Runoff Area=78,153 sf Runoff Volume=1.041 af Runoff Depth=6.96" Tc=12.0 min AMC Adjusted CN=WQ 0.34 cfs MN-Snowmelt_10d_100yr 10 day Snowmelt Rainfall=7.20", AMC=4Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 277HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 34dS: Offsite West Direct Runoff = 0.11 cfs @ 121.30 hrs, Volume= 0.339 af, Depth= 6.96" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-Snowmelt_10d_100yr 10 day Snowmelt Rainfall=7.20", AMC=4 Area (sf) CN Adj Description 20,380 80 98 >75% Grass cover, Good, HSG D * 5,090 98 98 Paved, HSG D 25,470 Weighted Average 20,380 80 98 80.02% Pervious Area, AMC Adjusted 5,090 98 98 19.98% Impervious Area, AMC Adjusted Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 10.0 Direct Entry, Subcatchment 34dS: Offsite West Direct Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.125 0.12 0.115 0.11 0.105 0.1 0.095 0.09 0.085 0.08 0.075 0.07 0.065 0.06 0.055 0.05 0.045 0.04 0.035 0.03 0.025 0.02 0.015 0.01 0.005 0 MN-Snowmelt_10d_100yr 10 day Snowmelt Rainfall=7.20" AMC=4 Runoff Area=25,470 sf Runoff Volume=0.339 af Runoff Depth=6.96" Tc=10.0 min AMC Adjusted CN=WQ 0.11 cfs MN-Snowmelt_10d_100yr 10 day Snowmelt Rainfall=7.20", AMC=4Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 278HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 34oS: Offsite to West South Runoff = 0.14 cfs @ 121.24 hrs, Volume= 0.436 af, Depth= 6.96" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-Snowmelt_10d_100yr 10 day Snowmelt Rainfall=7.20", AMC=4 Area (sf) CN Adj Description 20,410 78 98 Meadow, non-grazed, HSG D 2,700 98 98 Unconnected roofs, HSG D 9,600 80 98 >75% Grass cover, Good, HSG D 32,710 Weighted Average 30,010 79 98 91.75% Pervious Area, AMC Adjusted 2,700 98 98 8.25% Impervious Area, AMC Adjusted 2,700 100.00% Unconnected Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 2.0 37 0.1620 0.30 Sheet Flow, Grass: Short n= 0.150 P2= 2.87" 3.0 Direct Entry, Make up to 5 minutes 5.0 37 Total Subcatchment 34oS: Offsite to West South Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.16 0.15 0.14 0.13 0.12 0.11 0.1 0.09 0.08 0.07 0.06 0.05 0.04 0.03 0.02 0.01 0 MN-Snowmelt_10d_100yr 10 day Snowmelt Rainfall=7.20" AMC=4 Runoff Area=32,710 sf Runoff Volume=0.436 af Runoff Depth=6.96" Flow Length=37' Slope=0.1620 '/' Tc=5.0 min AMC UI Adjusted CN=WQ 0.14 cfs MN-Snowmelt_10d_100yr 10 day Snowmelt Rainfall=7.20", AMC=4Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 279HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 34S: West Woods Runoff = 0.46 cfs @ 121.30 hrs, Volume= 1.405 af, Depth= 6.96" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-Snowmelt_10d_100yr 10 day Snowmelt Rainfall=7.20", AMC=4 Area (ac) CN Adj Description 2.423 55 98 Woods, Good, HSG B 2.423 Weighted Average 2.423 55 98 100.00% Pervious Area, AMC Adjusted Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 8.4 50 0.0600 0.10 Sheet Flow, Woods: Light underbrush n= 0.400 P2= 2.87" 2.7 218 0.0710 1.33 Shallow Concentrated Flow, Woodland Kv= 5.0 fps 11.1 268 Total Subcatchment 34S: West Woods Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.5 0.48 0.46 0.44 0.42 0.4 0.38 0.36 0.34 0.32 0.3 0.28 0.26 0.24 0.22 0.2 0.18 0.16 0.14 0.12 0.1 0.08 0.06 0.04 0.02 0 MN-Snowmelt_10d_100yr 10 day Snowmelt Rainfall=7.20" AMC=4 Runoff Area=2.423 ac Runoff Volume=1.405 af Runoff Depth=6.96" Flow Length=268' Tc=11.1 min AMC Adjusted CN=98 0.46 cfs MN-Snowmelt_10d_100yr 10 day Snowmelt Rainfall=7.20", AMC=4Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 280HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 35S: Southwest Runoff = 0.72 cfs @ 121.37 hrs, Volume= 2.198 af, Depth= 6.96" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-Snowmelt_10d_100yr 10 day Snowmelt Rainfall=7.20", AMC=4 Area (ac) CN Adj Description 3.790 55 98 Woods, Good, HSG B 3.790 Weighted Average 3.790 55 98 100.00% Pervious Area, AMC Adjusted Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 16.0 75 0.0270 0.08 Sheet Flow, Woods: Light underbrush n= 0.400 P2= 2.87" 2.3 195 0.0820 1.43 Shallow Concentrated Flow, Woodland Kv= 5.0 fps 18.3 270 Total Subcatchment 35S: Southwest Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.8 0.75 0.7 0.65 0.6 0.55 0.5 0.45 0.4 0.35 0.3 0.25 0.2 0.15 0.1 0.05 0 MN-Snowmelt_10d_100yr 10 day Snowmelt Rainfall=7.20" AMC=4 Runoff Area=3.790 ac Runoff Volume=2.198 af Runoff Depth=6.96" Flow Length=270' Tc=18.3 min AMC Adjusted CN=98 0.72 cfs MN-Snowmelt_10d_100yr 10 day Snowmelt Rainfall=7.20", AMC=4Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 281HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 36oS: Southwest Offsite Runoff = 0.01 cfs @ 121.24 hrs, Volume= 0.022 af, Depth= 6.96" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-Snowmelt_10d_100yr 10 day Snowmelt Rainfall=7.20", AMC=4 Area (sf) CN Description 1,628 98 Paved parking, HSG D 1,628 98 100.00% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 5.0 Direct Entry, Subcatchment 36oS: Southwest Offsite Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.008 0.007 0.007 0.006 0.006 0.005 0.005 0.004 0.004 0.003 0.003 0.002 0.002 0.001 0.001 0.000 0 MN-Snowmelt_10d_100yr 10 day Snowmelt Rainfall=7.20" AMC=4 Runoff Area=1,628 sf Runoff Volume=0.022 af Runoff Depth=6.96" Tc=5.0 min CN=98 0.01 cfs MN-Snowmelt_10d_100yr 10 day Snowmelt Rainfall=7.20", AMC=4Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 282HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 40.1S: South - East Runoff = 0.72 cfs @ 121.30 hrs, Volume= 2.177 af, Depth= 6.96" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-Snowmelt_10d_100yr 10 day Snowmelt Rainfall=7.20", AMC=4 Area (sf) CN Adj Description 29,976 80 98 >75% Grass cover, Good, HSG D 133,492 98 98 Paved parking, HSG D 163,468 Weighted Average 29,976 80 98 18.34% Pervious Area, AMC Adjusted 133,492 98 98 81.66% Impervious Area, AMC Adjusted Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 10.0 Direct Entry, Subcatchment 40.1S: South - East Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.8 0.75 0.7 0.65 0.6 0.55 0.5 0.45 0.4 0.35 0.3 0.25 0.2 0.15 0.1 0.05 0 MN-Snowmelt_10d_100yr 10 day Snowmelt Rainfall=7.20" AMC=4 Runoff Area=163,468 sf Runoff Volume=2.177 af Runoff Depth=6.96" Tc=10.0 min AMC Adjusted CN=WQ 0.72 cfs MN-Snowmelt_10d_100yr 10 day Snowmelt Rainfall=7.20", AMC=4Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 283HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 40.2S: South - Central Runoff = 0.88 cfs @ 121.30 hrs, Volume= 2.671 af, Depth= 6.96" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-Snowmelt_10d_100yr 10 day Snowmelt Rainfall=7.20", AMC=4 Area (sf) CN Adj Description 47,748 80 98 >75% Grass cover, Good, HSG D 152,819 98 98 Paved parking, HSG D 200,567 Weighted Average 47,748 80 98 23.81% Pervious Area, AMC Adjusted 152,819 98 98 76.19% Impervious Area, AMC Adjusted Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 10.0 Direct Entry, Subcatchment 40.2S: South - Central Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.95 0.9 0.85 0.8 0.75 0.7 0.65 0.6 0.55 0.5 0.45 0.4 0.35 0.3 0.25 0.2 0.15 0.1 0.05 0 MN-Snowmelt_10d_100yr 10 day Snowmelt Rainfall=7.20" AMC=4 Runoff Area=200,567 sf Runoff Volume=2.671 af Runoff Depth=6.96" Tc=10.0 min AMC Adjusted CN=WQ 0.88 cfs MN-Snowmelt_10d_100yr 10 day Snowmelt Rainfall=7.20", AMC=4Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 284HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 40.3S: South - West Runoff = 1.00 cfs @ 121.30 hrs, Volume= 3.038 af, Depth= 6.96" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-Snowmelt_10d_100yr 10 day Snowmelt Rainfall=7.20", AMC=4 Area (sf) CN Adj Description 69,464 80 98 >75% Grass cover, Good, HSG D * 158,681 98 98 Paved parking & roofs, HSG D 228,145 Weighted Average 69,464 80 98 30.45% Pervious Area, AMC Adjusted 158,681 98 98 69.55% Impervious Area, AMC Adjusted Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 10.0 Direct Entry, Subcatchment 40.3S: South - West Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)1 0 MN-Snowmelt_10d_100yr 10 day Snowmelt Rainfall=7.20" AMC=4 Runoff Area=228,145 sf Runoff Volume=3.038 af Runoff Depth=6.96" Tc=10.0 min AMC Adjusted CN=WQ 1.00 cfs MN-Snowmelt_10d_100yr 10 day Snowmelt Rainfall=7.20", AMC=4Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 285HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 41.1S: South - East Runoff = 0.31 cfs @ 121.30 hrs, Volume= 0.932 af, Depth= 6.96" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-Snowmelt_10d_100yr 10 day Snowmelt Rainfall=7.20", AMC=4 Area (sf) CN Adj Description 10,289 80 98 >75% Grass cover, Good, HSG D 59,695 98 98 Paved parking, HSG D 69,984 Weighted Average 10,289 80 98 14.70% Pervious Area, AMC Adjusted 59,695 98 98 85.30% Impervious Area, AMC Adjusted Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 10.0 Direct Entry, Subcatchment 41.1S: South - East Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.34 0.32 0.3 0.28 0.26 0.24 0.22 0.2 0.18 0.16 0.14 0.12 0.1 0.08 0.06 0.04 0.02 0 MN-Snowmelt_10d_100yr 10 day Snowmelt Rainfall=7.20" AMC=4 Runoff Area=69,984 sf Runoff Volume=0.932 af Runoff Depth=6.96" Tc=10.0 min AMC Adjusted CN=WQ 0.31 cfs MN-Snowmelt_10d_100yr 10 day Snowmelt Rainfall=7.20", AMC=4Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 286HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 41.2S: South - Central Runoff = 0.69 cfs @ 121.30 hrs, Volume= 2.083 af, Depth= 6.96" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-Snowmelt_10d_100yr 10 day Snowmelt Rainfall=7.20", AMC=4 Area (sf) CN Adj Description 31,015 80 98 >75% Grass cover, Good, HSG D 125,404 98 98 Paved parking, HSG D 156,419 Weighted Average 31,015 80 98 19.83% Pervious Area, AMC Adjusted 125,404 98 98 80.17% Impervious Area, AMC Adjusted Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 10.0 Direct Entry, Subcatchment 41.2S: South - Central Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.75 0.7 0.65 0.6 0.55 0.5 0.45 0.4 0.35 0.3 0.25 0.2 0.15 0.1 0.05 0 MN-Snowmelt_10d_100yr 10 day Snowmelt Rainfall=7.20" AMC=4 Runoff Area=156,419 sf Runoff Volume=2.083 af Runoff Depth=6.96" Tc=10.0 min AMC Adjusted CN=WQ 0.69 cfs MN-Snowmelt_10d_100yr 10 day Snowmelt Rainfall=7.20", AMC=4Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 287HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 41.3S: South - west Runoff = 0.13 cfs @ 121.30 hrs, Volume= 0.398 af, Depth= 6.96" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-Snowmelt_10d_100yr 10 day Snowmelt Rainfall=7.20", AMC=4 Area (sf) CN Adj Description 1,850 80 98 >75% Grass cover, Good, HSG D 28,034 98 98 Paved parking, HSG D 29,884 Weighted Average 1,850 80 98 6.19% Pervious Area, AMC Adjusted 28,034 98 98 93.81% Impervious Area, AMC Adjusted Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 10.0 Direct Entry, Subcatchment 41.3S: South - west Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.14 0.13 0.12 0.11 0.1 0.09 0.08 0.07 0.06 0.05 0.04 0.03 0.02 0.01 0 MN-Snowmelt_10d_100yr 10 day Snowmelt Rainfall=7.20" AMC=4 Runoff Area=29,884 sf Runoff Volume=0.398 af Runoff Depth=6.96" Tc=10.0 min AMC Adjusted CN=WQ 0.13 cfs MN-Snowmelt_10d_100yr 10 day Snowmelt Rainfall=7.20", AMC=4Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 288HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 42.1S: South Runoff = 0.18 cfs @ 121.24 hrs, Volume= 0.558 af, Depth= 6.96" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-Snowmelt_10d_100yr 10 day Snowmelt Rainfall=7.20", AMC=4 Area (sf) CN Adj Description 41,871 80 98 >75% Grass cover, Good, HSG D 41,871 Weighted Average 41,871 80 98 100.00% Pervious Area, AMC Adjusted Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 5.0 Direct Entry, Subcatchment 42.1S: South Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.2 0.19 0.18 0.17 0.16 0.15 0.14 0.13 0.12 0.11 0.1 0.09 0.08 0.07 0.06 0.05 0.04 0.03 0.02 0.01 0 MN-Snowmelt_10d_100yr 10 day Snowmelt Rainfall=7.20" AMC=4 Runoff Area=41,871 sf Runoff Volume=0.558 af Runoff Depth=6.96" Tc=5.0 min AMC Adjusted CN=98 0.18 cfs MN-Snowmelt_10d_100yr 10 day Snowmelt Rainfall=7.20", AMC=4Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 289HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 42.2S: Southeast Runoff = 0.11 cfs @ 121.24 hrs, Volume= 0.327 af, Depth= 6.96" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-Snowmelt_10d_100yr 10 day Snowmelt Rainfall=7.20", AMC=4 Area (sf) CN Adj Description 24,525 80 98 >75% Grass cover, Good, HSG D 24,525 Weighted Average 24,525 80 98 100.00% Pervious Area, AMC Adjusted Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 5.0 Direct Entry, Subcatchment 42.2S: Southeast Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.12 0.115 0.11 0.105 0.1 0.095 0.09 0.085 0.08 0.075 0.07 0.065 0.06 0.055 0.05 0.045 0.04 0.035 0.03 0.025 0.02 0.015 0.01 0.005 0 MN-Snowmelt_10d_100yr 10 day Snowmelt Rainfall=7.20" AMC=4 Runoff Area=24,525 sf Runoff Volume=0.327 af Runoff Depth=6.96" Tc=5.0 min AMC Adjusted CN=98 0.11 cfs MN-Snowmelt_10d_100yr 10 day Snowmelt Rainfall=7.20", AMC=4Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 290HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 43.1S: East Woods Runoff = 0.61 cfs @ 121.35 hrs, Volume= 1.869 af, Depth= 6.96" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-Snowmelt_10d_100yr 10 day Snowmelt Rainfall=7.20", AMC=4 Area (ac) CN Adj Description 3.222 55 98 Woods, Good, HSG B 3.222 Weighted Average 3.222 55 98 100.00% Pervious Area, AMC Adjusted Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 11.1 75 0.0670 0.11 Sheet Flow, Woods: Light underbrush n= 0.400 P2= 2.87" 4.1 455 0.1380 1.86 Shallow Concentrated Flow, Woodland Kv= 5.0 fps 15.2 530 Total Subcatchment 43.1S: East Woods Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.65 0.6 0.55 0.5 0.45 0.4 0.35 0.3 0.25 0.2 0.15 0.1 0.05 0 MN-Snowmelt_10d_100yr 10 day Snowmelt Rainfall=7.20" AMC=4 Runoff Area=3.222 ac Runoff Volume=1.869 af Runoff Depth=6.96" Flow Length=530' Tc=15.2 min AMC Adjusted CN=98 0.61 cfs MN-Snowmelt_10d_100yr 10 day Snowmelt Rainfall=7.20", AMC=4Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 291HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 43.2S: Northeast Woods Runoff = 0.35 cfs @ 121.40 hrs, Volume= 1.080 af, Depth= 6.96" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-Snowmelt_10d_100yr 10 day Snowmelt Rainfall=7.20", AMC=4 Area (ac) CN Adj Description 1.862 55 98 Woods, Good, HSG B 1.862 Weighted Average 1.862 55 98 100.00% Pervious Area, AMC Adjusted Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 14.2 100 0.0650 0.12 Sheet Flow, Woods: Light underbrush n= 0.400 P2= 2.87" 5.3 523 0.1080 1.64 Shallow Concentrated Flow, Woodland Kv= 5.0 fps 19.5 623 Total Subcatchment 43.2S: Northeast Woods Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.38 0.36 0.34 0.32 0.3 0.28 0.26 0.24 0.22 0.2 0.18 0.16 0.14 0.12 0.1 0.08 0.06 0.04 0.02 0 MN-Snowmelt_10d_100yr 10 day Snowmelt Rainfall=7.20" AMC=4 Runoff Area=1.862 ac Runoff Volume=1.080 af Runoff Depth=6.96" Flow Length=623' Tc=19.5 min AMC Adjusted CN=98 0.35 cfs MN-Snowmelt_10d_100yr 10 day Snowmelt Rainfall=7.20", AMC=4Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 292HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 44S: North Woods Runoff = 1.93 cfs @ 121.35 hrs, Volume= 5.877 af, Depth= 6.96" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-Snowmelt_10d_100yr 10 day Snowmelt Rainfall=7.20", AMC=4 Area (sf) CN Adj Description 441,314 55 98 Woods, Good, HSG B 441,314 Weighted Average 441,314 55 98 100.00% Pervious Area, AMC Adjusted Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 11.2 75 0.0660 0.11 Sheet Flow, Woods: Light underbrush n= 0.400 P2= 2.87" 5.3 524 0.1090 1.65 Shallow Concentrated Flow, Woodland Kv= 5.0 fps 16.5 599 Total Subcatchment 44S: North Woods Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)2 1 0 MN-Snowmelt_10d_100yr 10 day Snowmelt Rainfall=7.20" AMC=4 Runoff Area=441,314 sf Runoff Volume=5.877 af Runoff Depth=6.96" Flow Length=599' Tc=16.5 min AMC Adjusted CN=98 1.93 cfs MN-Snowmelt_10d_100yr 10 day Snowmelt Rainfall=7.20", AMC=4Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 293HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 45S: Central - West Runoff = 0.90 cfs @ 121.30 hrs, Volume= 2.747 af, Depth= 6.96" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-Snowmelt_10d_100yr 10 day Snowmelt Rainfall=7.20", AMC=4 Area (sf) CN Adj Description 159,000 95 98 Urban commercial, 85% imp, HSG D 47,303 80 98 >75% Grass cover, Good, HSG D 206,303 Weighted Average 71,153 79 98 34.49% Pervious Area, AMC Adjusted 135,150 98 98 65.51% Impervious Area, AMC Adjusted Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 10.0 Direct Entry, Subcatchment 45S: Central - West Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)1 0 MN-Snowmelt_10d_100yr 10 day Snowmelt Rainfall=7.20" AMC=4 Runoff Area=206,303 sf Runoff Volume=2.747 af Runoff Depth=6.96" Tc=10.0 min AMC Adjusted CN=WQ 0.90 cfs MN-Snowmelt_10d_100yr 10 day Snowmelt Rainfall=7.20", AMC=4Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 294HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 46S: South Townhomes Runoff = 0.42 cfs @ 121.31 hrs, Volume= 1.293 af, Depth= 6.96" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-Snowmelt_10d_100yr 10 day Snowmelt Rainfall=7.20", AMC=4 Area (sf) CN Adj Description 19,025 98 98 Paved parking, HSG D 78,057 80 98 >75% Grass cover, Good, HSG D 97,082 Weighted Average 78,057 80 98 80.40% Pervious Area, AMC Adjusted 19,025 98 98 19.60% Impervious Area, AMC Adjusted Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 11.7 92 0.0320 0.13 Sheet Flow, Grass: Dense n= 0.240 P2= 2.87" 0.9 609 0.5200 10.82 Shallow Concentrated Flow, Grassed Waterway Kv= 15.0 fps 12.6 701 Total Subcatchment 46S: South Townhomes Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.46 0.44 0.42 0.4 0.38 0.36 0.34 0.32 0.3 0.28 0.26 0.24 0.22 0.2 0.18 0.16 0.14 0.12 0.1 0.08 0.06 0.04 0.02 0 MN-Snowmelt_10d_100yr 10 day Snowmelt Rainfall=7.20" AMC=4 Runoff Area=97,082 sf Runoff Volume=1.293 af Runoff Depth=6.96" Flow Length=701' Tc=12.6 min AMC Adjusted CN=WQ 0.42 cfs MN-Snowmelt_10d_100yr 10 day Snowmelt Rainfall=7.20", AMC=4Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 295HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 47S: Bluff Creek Blvd - West Runoff = 0.44 cfs @ 121.24 hrs, Volume= 1.331 af, Depth= 6.96" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-Snowmelt_10d_100yr 10 day Snowmelt Rainfall=7.20", AMC=4 Area (ac) CN Adj Description 0.439 80 98 >75% Grass cover, Good, HSG D 1.856 98 98 Paved roads w/curbs & sewers, HSG D 2.295 Weighted Average 0.439 80 98 19.13% Pervious Area, AMC Adjusted 1.856 98 98 80.87% Impervious Area, AMC Adjusted Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 5.0 Direct Entry, Subcatchment 47S: Bluff Creek Blvd - West Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.48 0.46 0.44 0.42 0.4 0.38 0.36 0.34 0.32 0.3 0.28 0.26 0.24 0.22 0.2 0.18 0.16 0.14 0.12 0.1 0.08 0.06 0.04 0.02 0 MN-Snowmelt_10d_100yr 10 day Snowmelt Rainfall=7.20" AMC=4 Runoff Area=2.295 ac Runoff Volume=1.331 af Runoff Depth=6.96" Tc=5.0 min AMC Adjusted CN=WQ 0.44 cfs MN-Snowmelt_10d_100yr 10 day Snowmelt Rainfall=7.20", AMC=4Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 296HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 48.1S: Direct to 48P (2) Runoff = 0.41 cfs @ 121.30 hrs, Volume= 1.248 af, Depth= 6.96" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-Snowmelt_10d_100yr 10 day Snowmelt Rainfall=7.20", AMC=4 Area (sf) CN Adj Description 29,956 80 98 >75% Grass cover, Good, HSG D 63,765 98 98 Paved parking, HSG D 93,721 Weighted Average 29,956 80 98 31.96% Pervious Area, AMC Adjusted 63,765 98 98 68.04% Impervious Area, AMC Adjusted Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 10.0 Direct Entry, Subcatchment 48.1S: Direct to 48P (2) Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.46 0.44 0.42 0.4 0.38 0.36 0.34 0.32 0.3 0.28 0.26 0.24 0.22 0.2 0.18 0.16 0.14 0.12 0.1 0.08 0.06 0.04 0.02 0 MN-Snowmelt_10d_100yr 10 day Snowmelt Rainfall=7.20" AMC=4 Runoff Area=93,721 sf Runoff Volume=1.248 af Runoff Depth=6.96" Tc=10.0 min AMC Adjusted CN=WQ 0.41 cfs MN-Snowmelt_10d_100yr 10 day Snowmelt Rainfall=7.20", AMC=4Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 297HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 48S: Bluff Creek Blvd - East Runoff = 0.66 cfs @ 121.24 hrs, Volume= 1.996 af, Depth= 6.96" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-Snowmelt_10d_100yr 10 day Snowmelt Rainfall=7.20", AMC=4 Area (ac) CN Adj Description 0.642 80 98 >75% Grass cover, Good, HSG D 2.799 98 98 Paved roads w/curbs & sewers, HSG D 3.441 Weighted Average 0.642 80 98 18.66% Pervious Area, AMC Adjusted 2.799 98 98 81.34% Impervious Area, AMC Adjusted Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 5.0 Direct Entry, Subcatchment 48S: Bluff Creek Blvd - East Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.7 0.65 0.6 0.55 0.5 0.45 0.4 0.35 0.3 0.25 0.2 0.15 0.1 0.05 0 MN-Snowmelt_10d_100yr 10 day Snowmelt Rainfall=7.20" AMC=4 Runoff Area=3.441 ac Runoff Volume=1.996 af Runoff Depth=6.96" Tc=5.0 min AMC Adjusted CN=WQ 0.66 cfs MN-Snowmelt_10d_100yr 10 day Snowmelt Rainfall=7.20", AMC=4Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 298HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Reach 20R: Northwest Drainage [40] Hint: Not Described (Outflow=Inflow) Inflow Area = 15.265 ac, 37.82% Impervious, Inflow Depth = 4.54" for 10 day Snowmelt event Inflow = 2.56 cfs @ 121.92 hrs, Volume= 5.773 af Outflow = 2.56 cfs @ 121.92 hrs, Volume= 5.773 af, Atten= 0%, Lag= 0.0 min Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Reach 20R: Northwest Drainage Inflow Outflow Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)2 1 0 Inflow Area=15.265 ac 2.56 cfs 2.56 cfs MN-Snowmelt_10d_100yr 10 day Snowmelt Rainfall=7.20", AMC=4Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 299HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Reach 21R: Lower Wetland 6 Inflow Area = 15.265 ac, 37.82% Impervious, Inflow Depth = 4.54" for 10 day Snowmelt event Inflow = 2.56 cfs @ 121.86 hrs, Volume= 5.773 af Outflow = 2.56 cfs @ 121.92 hrs, Volume= 5.773 af, Atten= 0%, Lag= 3.7 min Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Max. Velocity= 0.65 fps, Min. Travel Time= 4.8 min Avg. Velocity = 0.34 fps, Avg. Travel Time= 9.1 min Peak Storage= 736 cf @ 121.92 hrs Average Depth at Peak Storage= 0.32' Bank-Full Depth= 5.99' Flow Area= 570.1 sf, Capacity= 3,072.14 cfs Custom cross-section, Length= 187.0' Slope= 0.0053 '/' (102 Elevation Intervals) Constant n= 0.050 Scattered brush, heavy weeds Inlet Invert= 885.00', Outlet Invert= 884.00' ‡ Offset Elevation Chan.Depth (feet) (feet) (feet) 0.00 890.40 0.00 43.10 886.55 3.85 85.60 884.41 5.99 126.20 885.14 5.26 145.10 890.40 0.00 Depth End Area Perim. Storage Discharge (feet) (sq-ft) (feet) (cubic-feet) (cfs) 0.00 0.0 0.0 0 0.00 0.73 20.1 55.1 3,761 22.32 2.14 121.1 88.4 22,648 324.64 5.99 570.1 146.1 106,618 3,072.14 MN-Snowmelt_10d_100yr 10 day Snowmelt Rainfall=7.20", AMC=4Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 300HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Reach 21R: Lower Wetland 6 Inflow Outflow Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)2 1 0 Inflow Area=15.265 ac Avg. Flow Depth=0.32' Max Vel=0.65 fps n=0.050 L=187.0' S=0.0053 '/' Capacity=3,072.14 cfs 2.56 cfs 2.56 cfs MN-Snowmelt_10d_100yr 10 day Snowmelt Rainfall=7.20", AMC=4Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 301HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Reach 30R: SW Drainage [40] Hint: Not Described (Outflow=Inflow) Inflow Area = 12.794 ac, 6.62% Impervious, Inflow Depth = 6.89" for 10 day Snowmelt event Inflow = 2.20 cfs @ 121.41 hrs, Volume= 7.341 af Outflow = 2.20 cfs @ 121.41 hrs, Volume= 7.341 af, Atten= 0%, Lag= 0.0 min Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Reach 30R: SW Drainage Inflow Outflow Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)2 1 0 Inflow Area=12.794 ac 2.20 cfs 2.20 cfs MN-Snowmelt_10d_100yr 10 day Snowmelt Rainfall=7.20", AMC=4Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 302HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Reach 35R: Direct Runoff [40] Hint: Not Described (Outflow=Inflow) Inflow Area = 4.375 ac, 2.67% Impervious, Inflow Depth = 6.96" for 10 day Snowmelt event Inflow = 0.83 cfs @ 121.37 hrs, Volume= 2.538 af Outflow = 0.83 cfs @ 121.37 hrs, Volume= 2.538 af, Atten= 0%, Lag= 0.0 min Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Reach 35R: Direct Runoff Inflow Outflow Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.9 0.85 0.8 0.75 0.7 0.65 0.6 0.55 0.5 0.45 0.4 0.35 0.3 0.25 0.2 0.15 0.1 0.05 0 Inflow Area=4.375 ac 0.83 cfs 0.83 cfs MN-Snowmelt_10d_100yr 10 day Snowmelt Rainfall=7.20", AMC=4Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 303HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Reach 40R: South Drainage [40] Hint: Not Described (Outflow=Inflow) Inflow Area = 51.070 ac, 48.50% Impervious, Inflow Depth = 3.77" for 10 day Snowmelt event Inflow = 6.12 cfs @ 121.58 hrs, Volume= 16.041 af Outflow = 6.12 cfs @ 121.58 hrs, Volume= 16.041 af, Atten= 0%, Lag= 0.0 min Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Reach 40R: South Drainage Inflow Outflow Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)6 5 4 3 2 1 0 Inflow Area=51.070 ac 6.12 cfs 6.12 cfs MN-Snowmelt_10d_100yr 10 day Snowmelt Rainfall=7.20", AMC=4Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 304HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Reach 42.1R: South [40] Hint: Not Described (Outflow=Inflow) Inflow Area = 9.843 ac, 71.43% Impervious, Inflow Depth = 2.71" for 10 day Snowmelt event Inflow = 0.83 cfs @ 121.38 hrs, Volume= 2.221 af Outflow = 0.83 cfs @ 121.38 hrs, Volume= 2.221 af, Atten= 0%, Lag= 0.0 min Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Reach 42.1R: South Inflow Outflow Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.9 0.85 0.8 0.75 0.7 0.65 0.6 0.55 0.5 0.45 0.4 0.35 0.3 0.25 0.2 0.15 0.1 0.05 0 Inflow Area=9.843 ac 0.83 cfs 0.83 cfs MN-Snowmelt_10d_100yr 10 day Snowmelt Rainfall=7.20", AMC=4Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 305HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Reach 42.2R: Southeast [40] Hint: Not Described (Outflow=Inflow) Inflow Area = 11.515 ac, 75.54% Impervious, Inflow Depth = 1.89" for 10 day Snowmelt event Inflow = 1.21 cfs @ 122.75 hrs, Volume= 1.810 af Outflow = 1.21 cfs @ 122.75 hrs, Volume= 1.810 af, Atten= 0%, Lag= 0.0 min Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Reach 42.2R: Southeast Inflow Outflow Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)1 0 Inflow Area=11.515 ac 1.21 cfs 1.21 cfs MN-Snowmelt_10d_100yr 10 day Snowmelt Rainfall=7.20", AMC=4Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 306HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Reach 44R: Wetland 4 Channel [40] Hint: Not Described (Outflow=Inflow) Inflow Area = 26.490 ac, 34.12% Impervious, Inflow Depth = 4.59" for 10 day Snowmelt event Inflow = 3.60 cfs @ 121.50 hrs, Volume= 10.141 af Outflow = 3.60 cfs @ 121.50 hrs, Volume= 10.141 af, Atten= 0%, Lag= 0.0 min Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Reach 44R: Wetland 4 Channel Inflow Outflow Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)4 3 2 1 0 Inflow Area=26.490 ac 3.60 cfs 3.60 cfs MN-Snowmelt_10d_100yr 10 day Snowmelt Rainfall=7.20", AMC=4Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 307HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Reach 48R: Development to Wetland 4 [40] Hint: Not Described (Outflow=Inflow) Inflow Area = 14.497 ac, 62.34% Impervious, Inflow Depth = 2.64" for 10 day Snowmelt event Inflow = 1.46 cfs @ 122.97 hrs, Volume= 3.185 af Outflow = 1.46 cfs @ 122.97 hrs, Volume= 3.185 af, Atten= 0%, Lag= 0.0 min Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Reach 48R: Development to Wetland 4 Inflow Outflow Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)1 0 Inflow Area=14.497 ac 1.46 cfs 1.46 cfs MN-Snowmelt_10d_100yr 10 day Snowmelt Rainfall=7.20", AMC=4Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 308HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Reach 50R: Bluff Creek Drainage [40] Hint: Not Described (Outflow=Inflow) Inflow Area = 79.129 ac, 39.67% Impervious, Inflow Depth = 4.42" for 10 day Snowmelt event Inflow = 10.84 cfs @ 121.57 hrs, Volume= 29.156 af Outflow = 10.84 cfs @ 121.57 hrs, Volume= 29.156 af, Atten= 0%, Lag= 0.0 min Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Reach 50R: Bluff Creek Drainage Inflow Outflow Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)12 11 10 9 8 7 6 5 4 3 2 1 0 Inflow Area=79.129 ac 10.84 cfs 10.84 cfs MN-Snowmelt_10d_100yr 10 day Snowmelt Rainfall=7.20", AMC=4Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 309HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Pond 21P: North Basin Inflow Area = 14.040 ac, 40.93% Impervious, Inflow Depth = 5.37" for 10 day Snowmelt event Inflow = 2.51 cfs @ 121.37 hrs, Volume= 6.287 af Outflow = 2.40 cfs @ 121.97 hrs, Volume= 6.287 af, Atten= 5%, Lag= 36.4 min Discarded = 0.05 cfs @ 13.28 hrs, Volume= 1.224 af Primary = 2.34 cfs @ 121.97 hrs, Volume= 5.063 af Secondary = 0.00 cfs @ 0.00 hrs, Volume= 0.000 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 891.38' @ 121.97 hrs Surf.Area= 37,120 sf Storage= 19,147 cf Plug-Flow detention time= 590.2 min calculated for 6.287 af (100% of inflow) Center-of-Mass det. time= 590.2 min ( 8,202.1 - 7,611.9 ) Volume Invert Avail.Storage Storage Description #1 889.70' 25,434 cf Sand Section (Prismatic) Listed below (Recalc) 85,376 cf Overall - 594 cf Embedded = 84,782 cf x 30.0% Voids #2 892.00' 5,568 cf Topsoil (Prismatic) Listed below (Recalc) 18,560 cf Overall x 30.0% Voids #3 892.50' 150,182 cf Open Pond (Prismatic) Listed below (Recalc) #4 889.70' 594 cf 8.0" Round Pipe Storage Inside #1 L= 1,703.0' 181,778 cf Total Available Storage Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 889.70 37,120 0 0 892.00 37,120 85,376 85,376 Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 892.00 37,120 0 0 892.50 37,120 18,560 18,560 Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 892.50 37,120 0 0 893.00 38,678 18,950 18,950 894.00 41,838 40,258 59,208 895.00 45,055 43,447 102,654 896.00 50,000 47,528 150,182 Device Routing Invert Outlet Devices #1 Primary 889.70'18.0" Round Culvert L= 45.0' RCP, sq.cut end projecting, Ke= 0.500 Inlet / Outlet Invert= 889.70' / 889.38' S= 0.0071 '/' Cc= 0.900 n= 0.011 Concrete pipe, straight & clean, Flow Area= 1.77 sf #2 Device 1 890.50'12.0" Vert. Orifice/Grate C= 0.600 #3 Device 1 892.74'12.0" Vert. Orifice/Grate C= 0.600 #4 Discarded 889.70'0.060 in/hr Exfiltration over Surface area Phase-In= 0.01' MN-Snowmelt_10d_100yr 10 day Snowmelt Rainfall=7.20", AMC=4Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 310HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC #5 Secondary 894.00'20.0' long x 5.0' breadth Broad-Crested Rectangular Weir Head (feet) 0.20 0.40 0.60 0.80 1.00 1.20 1.40 1.60 1.80 2.00 2.50 3.00 3.50 4.00 4.50 5.00 5.50 Coef. (English) 2.34 2.50 2.70 2.68 2.68 2.66 2.65 2.65 2.65 2.65 2.67 2.66 2.68 2.70 2.74 2.79 2.88 Discarded OutFlow Max=0.05 cfs @ 13.28 hrs HW=889.71' (Free Discharge) 4=Exfiltration (Exfiltration Controls 0.05 cfs) Primary OutFlow Max=2.34 cfs @ 121.97 hrs HW=891.38' TW=885.32' (Dynamic Tailwater) 1=Culvert (Passes 2.34 cfs of 7.84 cfs potential flow) 2=Orifice/Grate (Orifice Controls 2.34 cfs @ 3.20 fps) 3=Orifice/Grate ( Controls 0.00 cfs) Secondary OutFlow Max=0.00 cfs @ 0.00 hrs HW=889.70' TW=885.00' (Dynamic Tailwater) 5=Broad-Crested Rectangular Weir ( Controls 0.00 cfs) Pond 21P: North Basin Inflow Outflow Discarded Primary Secondary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)2 1 0 Inflow Area=14.040 ac Peak Elev=891.38' Storage=19,147 cf 2.51 cfs 2.40 cfs 0.05 cfs 2.34 cfs 0.00 cfs MN-Snowmelt_10d_100yr 10 day Snowmelt Rainfall=7.20", AMC=4Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 311HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Pond 24P: Northwest Basin Inflow Area = 1.357 ac, 69.40% Impervious, Inflow Depth = 6.96" for 10 day Snowmelt event Inflow = 0.26 cfs @ 121.30 hrs, Volume= 0.787 af Outflow = 0.25 cfs @ 121.55 hrs, Volume= 0.787 af, Atten= 3%, Lag= 15.2 min Discarded = 0.02 cfs @ 15.33 hrs, Volume= 0.357 af Primary = 0.24 cfs @ 121.55 hrs, Volume= 0.430 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 913.87' @ 121.55 hrs Surf.Area= 11,000 sf Storage= 3,658 cf Plug-Flow detention time= 1,102.4 min calculated for 0.787 af (100% of inflow) Center-of-Mass det. time= 1,102.4 min ( 8,488.0 - 7,385.6 ) Volume Invert Avail.Storage Storage Description #1 912.80' 7,537 cf Custom Stage Data (Prismatic) Listed below (Recalc) 25,300 cf Overall - 176 cf Embedded = 25,124 cf x 30.0% Voids #2 915.10' 8,729 cf Custom Stage Data (Prismatic) Listed below (Recalc) 22,000 cf Overall - 176 cf Embedded = 21,824 cf x 40.0% Voids #3 912.80' 176 cf 8.0" Round Pipe Storage Inside #1 L= 505.0' #4 915.10' 176 cf 8.0" Round Pipe Storage Inside #2 L= 505.0' 16,619 cf Total Available Storage Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 912.80 11,000 0 0 915.10 11,000 25,300 25,300 Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 915.10 11,000 0 0 917.10 11,000 22,000 22,000 Device Routing Invert Outlet Devices #1 Primary 912.80'12.0" Round Culvert L= 100.0' RCP, sq.cut end projecting, Ke= 0.500 Inlet / Outlet Invert= 912.80' / 912.10' S= 0.0070 '/' Cc= 0.900 n= 0.011 Concrete pipe, straight & clean, Flow Area= 0.79 sf #2 Device 1 913.60'8.0" Vert. Orifice/Grate C= 0.600 #3 Device 1 915.77'8.0" Vert. Orifice/Grate C= 0.600 #4 Discarded 912.80'0.060 in/hr Exfiltration over Surface area Phase-In= 0.01' Discarded OutFlow Max=0.02 cfs @ 15.33 hrs HW=912.81' (Free Discharge) 4=Exfiltration (Exfiltration Controls 0.02 cfs) Primary OutFlow Max=0.24 cfs @ 121.55 hrs HW=913.87' TW=895.05' (Dynamic Tailwater) 1=Culvert (Passes 0.24 cfs of 2.86 cfs potential flow) 2=Orifice/Grate (Orifice Controls 0.24 cfs @ 1.77 fps) 3=Orifice/Grate ( Controls 0.00 cfs) MN-Snowmelt_10d_100yr 10 day Snowmelt Rainfall=7.20", AMC=4Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 312HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Pond 24P: Northwest Basin Inflow Outflow Discarded Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.28 0.26 0.24 0.22 0.2 0.18 0.16 0.14 0.12 0.1 0.08 0.06 0.04 0.02 0 Inflow Area=1.357 ac Peak Elev=913.87' Storage=3,658 cf 0.26 cfs 0.25 cfs 0.02 cfs 0.24 cfs MN-Snowmelt_10d_100yr 10 day Snowmelt Rainfall=7.20", AMC=4Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 313HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Pond 25P: West - North Inflow Area = 4.651 ac, 45.17% Impervious, Inflow Depth = 6.96" for 10 day Snowmelt event Inflow = 0.89 cfs @ 121.30 hrs, Volume= 2.698 af Outflow = 0.87 cfs @ 121.46 hrs, Volume= 2.698 af, Atten= 1%, Lag= 9.4 min Discarded = 0.02 cfs @ 8.50 hrs, Volume= 0.512 af Primary = 0.85 cfs @ 121.46 hrs, Volume= 2.185 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 913.84' @ 121.46 hrs Surf.Area= 15,560 sf Storage= 5,822 cf Plug-Flow detention time= 560.0 min calculated for 2.698 af (100% of inflow) Center-of-Mass det. time= 560.1 min ( 7,945.7 - 7,385.6 ) Volume Invert Avail.Storage Storage Description #1 912.63' 10,662 cf Custom Stage Data (Prismatic) Listed below (Recalc) 35,788 cf Overall - 249 cf Embedded = 35,539 cf x 30.0% Voids #2 914.93' 12,348 cf Custom Stage Data (Prismatic) Listed below (Recalc) 31,120 cf Overall - 249 cf Embedded = 30,871 cf x 40.0% Voids #3 916.93' 9,772 cf Custom Stage Data (Prismatic) Listed below (Recalc) 24,429 cf Overall x 40.0% Voids #4 912.63' 249 cf 8.0" Round Pipe Storage Inside #1 L= 714.0' #5 914.93' 249 cf 8.0" Round Pipe Storage Inside #2 L= 714.0' 33,280 cf Total Available Storage Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 912.63 15,560 0 0 914.93 15,560 35,788 35,788 Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 914.93 15,560 0 0 916.93 15,560 31,120 31,120 Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 916.93 15,560 0 0 918.50 15,560 24,429 24,429 Device Routing Invert Outlet Devices #1 Primary 912.63'18.0" Round Culvert L= 153.0' RCP, sq.cut end projecting, Ke= 0.500 Inlet / Outlet Invert= 912.63' / 911.10' S= 0.0100 '/' Cc= 0.900 n= 0.011 Concrete pipe, straight & clean, Flow Area= 1.77 sf #2 Device 1 913.43'18.0" Vert. Orifice/Grate C= 0.600 #3 Device 1 915.67'18.0" Vert. Orifice/Grate C= 0.600 #4 Discarded 912.63'0.060 in/hr Exfiltration over Surface area Phase-In= 0.01' MN-Snowmelt_10d_100yr 10 day Snowmelt Rainfall=7.20", AMC=4Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 314HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Discarded OutFlow Max=0.02 cfs @ 8.50 hrs HW=912.64' (Free Discharge) 4=Exfiltration (Exfiltration Controls 0.02 cfs) Primary OutFlow Max=0.85 cfs @ 121.46 hrs HW=913.84' TW=894.93' (Dynamic Tailwater) 1=Culvert (Passes 0.85 cfs of 5.72 cfs potential flow) 2=Orifice/Grate (Orifice Controls 0.85 cfs @ 2.18 fps) 3=Orifice/Grate ( Controls 0.00 cfs) Pond 25P: West - North Inflow Outflow Discarded Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.95 0.9 0.85 0.8 0.75 0.7 0.65 0.6 0.55 0.5 0.45 0.4 0.35 0.3 0.25 0.2 0.15 0.1 0.05 0 Inflow Area=4.651 ac Peak Elev=913.84' Storage=5,822 cf 0.89 cfs 0.87 cfs 0.02 cfs 0.85 cfs MN-Snowmelt_10d_100yr 10 day Snowmelt Rainfall=7.20", AMC=4Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 315HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Pond 28P: Avienda Pkwy - NW Basin Inflow Area = 2.793 ac, 66.00% Impervious, Inflow Depth = 6.96" for 10 day Snowmelt event Inflow = 0.53 cfs @ 121.35 hrs, Volume= 1.620 af Outflow = 0.49 cfs @ 122.02 hrs, Volume= 1.620 af, Atten= 9%, Lag= 39.9 min Discarded = 0.04 cfs @ 25.15 hrs, Volume= 0.988 af Primary = 0.44 cfs @ 122.02 hrs, Volume= 0.632 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 910.92' @ 122.02 hrs Surf.Area= 30,906 sf Storage= 11,340 cf Plug-Flow detention time= 1,334.9 min calculated for 1.620 af (100% of inflow) Center-of-Mass det. time= 1,334.9 min ( 8,725.1 - 7,390.2 ) Volume Invert Avail.Storage Storage Description #1 909.73' 21,177 cf Custom Stage Data (Prismatic) Listed below (Recalc) 71,084 cf Overall - 495 cf Embedded = 70,589 cf x 30.0% Voids #2 912.03' 24,527 cf Custom Stage Data (Prismatic) Listed below (Recalc) 61,812 cf Overall - 495 cf Embedded = 61,317 cf x 40.0% Voids #3 909.73' 495 cf 8.0" Round Pipe Storage Inside #1 L= 1,418.0' #4 912.03' 495 cf 8.0" Round Pipe Storage Inside #2 L= 1,418.0' 46,693 cf Total Available Storage Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 909.73 30,906 0 0 912.03 30,906 71,084 71,084 Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 912.03 30,906 0 0 914.03 30,906 61,812 61,812 Device Routing Invert Outlet Devices #1 Primary 909.73'12.0" Round Culvert L= 148.0' RCP, sq.cut end projecting, Ke= 0.500 Inlet / Outlet Invert= 909.73' / 908.25' S= 0.0100 '/' Cc= 0.900 n= 0.011 Concrete pipe, straight & clean, Flow Area= 0.79 sf #2 Device 1 910.53'8.0" Vert. Orifice/Grate C= 0.600 #3 Device 1 912.77'8.0" Vert. Orifice/Grate C= 0.600 #4 Discarded 909.73'0.060 in/hr Exfiltration over Surface area Phase-In= 0.01' Discarded OutFlow Max=0.04 cfs @ 25.15 hrs HW=909.74' (Free Discharge) 4=Exfiltration (Exfiltration Controls 0.04 cfs) Primary OutFlow Max=0.44 cfs @ 122.02 hrs HW=910.92' TW=894.86' (Dynamic Tailwater) 1=Culvert (Passes 0.44 cfs of 3.13 cfs potential flow) 2=Orifice/Grate (Orifice Controls 0.44 cfs @ 2.11 fps) 3=Orifice/Grate ( Controls 0.00 cfs) MN-Snowmelt_10d_100yr 10 day Snowmelt Rainfall=7.20", AMC=4Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 316HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Pond 28P: Avienda Pkwy - NW Basin Inflow Outflow Discarded Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.55 0.5 0.45 0.4 0.35 0.3 0.25 0.2 0.15 0.1 0.05 0 Inflow Area=2.793 ac Peak Elev=910.92' Storage=11,340 cf 0.53 cfs 0.49 cfs 0.04 cfs 0.44 cfs MN-Snowmelt_10d_100yr 10 day Snowmelt Rainfall=7.20", AMC=4Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 317HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Pond 31P: West South Basin Inflow Area = 0.754 ac, 22.84% Impervious, Inflow Depth = 6.96" for 10 day Snowmelt event Inflow = 0.14 cfs @ 121.34 hrs, Volume= 0.437 af Outflow = 0.14 cfs @ 121.45 hrs, Volume= 0.437 af, Atten= 1%, Lag= 6.6 min Discarded = 0.00 cfs @ 8.47 hrs, Volume= 0.080 af Primary = 0.14 cfs @ 121.45 hrs, Volume= 0.357 af Secondary = 0.00 cfs @ 0.00 hrs, Volume= 0.000 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 921.93' @ 121.45 hrs Surf.Area= 2,441 sf Storage= 766 cf Plug-Flow detention time= 507.6 min calculated for 0.437 af (100% of inflow) Center-of-Mass det. time= 507.6 min ( 7,897.6 - 7,390.0 ) Volume Invert Avail.Storage Storage Description #1 920.93' 1,671 cf Sand Setion (Prismatic) Listed below (Recalc) 5,614 cf Overall - 44 cf Embedded = 5,571 cf x 30.0% Voids #2 923.23' 366 cf Topsoil (Prismatic) Listed below (Recalc) 1,221 cf Overall x 30.0% Voids #3 923.73' 11,497 cf Open pond (Prismatic) Listed below (Recalc) #4 920.93' 44 cf 8.0" Round Pipe Storage Inside #1 L= 125.0' 13,578 cf Total Available Storage Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 920.93 2,441 0 0 923.23 2,441 5,614 5,614 Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 923.23 2,441 0 0 923.73 2,441 1,221 1,221 Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 923.73 2,441 0 0 926.60 4,878 10,503 10,503 926.70 15,000 994 11,497 Device Routing Invert Outlet Devices #1 Primary 920.93'12.0" Round Culvert L= 46.0' RCP, sq.cut end projecting, Ke= 0.500 Inlet / Outlet Invert= 920.93' / 920.80' S= 0.0028 '/' Cc= 0.900 n= 0.011 Concrete pipe, straight & clean, Flow Area= 0.79 sf #2 Device 1 921.73'8.0" Vert. Orifice/Grate C= 0.600 #3 Device 1 923.84'8.0" Vert. Orifice/Grate C= 0.600 #4 Secondary 925.60'20.0' long x 5.0' breadth Broad-Crested Rectangular Weir Head (feet) 0.20 0.40 0.60 0.80 1.00 1.20 1.40 1.60 1.80 2.00 2.50 3.00 3.50 4.00 4.50 5.00 5.50 MN-Snowmelt_10d_100yr 10 day Snowmelt Rainfall=7.20", AMC=4Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 318HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Coef. (English) 2.34 2.50 2.70 2.68 2.68 2.66 2.65 2.65 2.65 2.65 2.67 2.66 2.68 2.70 2.74 2.79 2.88 #5 Discarded 920.93'0.060 in/hr Exfiltration over Horizontal area Phase-In= 0.01' Discarded OutFlow Max=0.00 cfs @ 8.47 hrs HW=920.94' (Free Discharge) 5=Exfiltration (Exfiltration Controls 0.00 cfs) Primary OutFlow Max=0.14 cfs @ 121.45 hrs HW=921.93' TW=921.02' (Dynamic Tailwater) 1=Culvert (Passes 0.14 cfs of 2.07 cfs potential flow) 2=Orifice/Grate (Orifice Controls 0.14 cfs @ 1.54 fps) 3=Orifice/Grate ( Controls 0.00 cfs) Secondary OutFlow Max=0.00 cfs @ 0.00 hrs HW=920.93' TW=920.58' (Dynamic Tailwater) 4=Broad-Crested Rectangular Weir ( Controls 0.00 cfs) Pond 31P: West South Basin Inflow Outflow Discarded Primary Secondary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.16 0.15 0.14 0.13 0.12 0.11 0.1 0.09 0.08 0.07 0.06 0.05 0.04 0.03 0.02 0.01 0 Inflow Area=0.754 ac Peak Elev=921.93' Storage=766 cf 0.14 cfs 0.14 cfs 0.00 cfs 0.14 cfs 0.00 cfs MN-Snowmelt_10d_100yr 10 day Snowmelt Rainfall=7.20", AMC=4Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 319HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Pond 32P: Drop MH [57] Hint: Peaked at 894.93' (Flood elevation advised) Inflow Area = 4.651 ac, 45.17% Impervious, Inflow Depth = 5.64" for 10 day Snowmelt event Inflow = 0.85 cfs @ 121.46 hrs, Volume= 2.185 af Outflow = 0.85 cfs @ 121.46 hrs, Volume= 2.185 af, Atten= 0%, Lag= 0.0 min Primary = 0.85 cfs @ 121.46 hrs, Volume= 2.185 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 894.93' @ 121.46 hrs Device Routing Invert Outlet Devices #1 Primary 894.50'18.0" Round Culvert L= 90.0' RCP, sq.cut end projecting, Ke= 0.500 Inlet / Outlet Invert= 894.50' / 894.00' S= 0.0056 '/' Cc= 0.900 n= 0.011 Concrete pipe, straight & clean, Flow Area= 1.77 sf Primary OutFlow Max=0.85 cfs @ 121.46 hrs HW=894.93' TW=891.37' (Dynamic Tailwater) 1=Culvert (Barrel Controls 0.85 cfs @ 3.01 fps) Pond 32P: Drop MH Inflow Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.95 0.9 0.85 0.8 0.75 0.7 0.65 0.6 0.55 0.5 0.45 0.4 0.35 0.3 0.25 0.2 0.15 0.1 0.05 0 Inflow Area=4.651 ac Peak Elev=894.93' 18.0" Round Culvert n=0.011 L=90.0' S=0.0056 '/' 0.85 cfs 0.85 cfs MN-Snowmelt_10d_100yr 10 day Snowmelt Rainfall=7.20", AMC=4Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 320HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Pond 33P: Wetland 3 Inflow Area = 5.208 ac, 12.12% Impervious, Inflow Depth = 6.78" for 10 day Snowmelt event Inflow = 0.99 cfs @ 121.29 hrs, Volume= 2.941 af Outflow = 0.81 cfs @ 122.56 hrs, Volume= 2.941 af, Atten= 18%, Lag= 76.3 min Primary = 0.81 cfs @ 122.56 hrs, Volume= 2.941 af Secondary = 0.00 cfs @ 0.00 hrs, Volume= 0.000 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 921.04' @ 122.56 hrs Surf.Area= 31,441 sf Storage= 7,480 cf Plug-Flow detention time= 143.3 min calculated for 2.941 af (100% of inflow) Center-of-Mass det. time= 143.4 min ( 7,561.0 - 7,417.5 ) Volume Invert Avail.Storage Storage Description #1 920.58' 140,121 cf Custom Stage Data (Prismatic) Listed below (Recalc) Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 920.58 100 0 0 921.00 30,000 6,321 6,321 922.00 68,200 49,100 55,421 923.00 101,200 84,700 140,121 Device Routing Invert Outlet Devices #1 Primary 920.58'12.0" Round Culvert L= 455.0' RCP, end-section conforming to fill, Ke= 0.500 Inlet / Outlet Invert= 920.58' / 911.02' S= 0.0210 '/' Cc= 0.900 n= 0.013 Concrete pipe, straight & clean, Flow Area= 0.79 sf #2 Secondary 921.90'Asymmetrical Weir, C= 3.27 Offset (feet) 0.00 19.00 40.00 50.00 76.00 103.00 Height (feet) 1.50 0.50 0.00 0.00 0.50 1.50 Primary OutFlow Max=0.81 cfs @ 122.56 hrs HW=921.04' TW=907.55' (Dynamic Tailwater) 1=Culvert (Inlet Controls 0.81 cfs @ 2.30 fps) Secondary OutFlow Max=0.00 cfs @ 0.00 hrs HW=920.58' TW=0.00' (Dynamic Tailwater) 2=Asymmetrical Weir ( Controls 0.00 cfs) MN-Snowmelt_10d_100yr 10 day Snowmelt Rainfall=7.20", AMC=4Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 321HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Pond 33P: Wetland 3 Inflow Outflow Primary Secondary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)1 0 Inflow Area=5.208 ac Peak Elev=921.04' Storage=7,480 cf 0.99 cfs 0.81 cfs 0.81 cfs 0.00 cfs MN-Snowmelt_10d_100yr 10 day Snowmelt Rainfall=7.20", AMC=4Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 322HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Pond 34P: West - South (existing) Inflow Area = 8.382 ac, 8.27% Impervious, Inflow Depth = 6.85" for 10 day Snowmelt event Inflow = 1.36 cfs @ 121.42 hrs, Volume= 4.782 af Outflow = 1.36 cfs @ 121.54 hrs, Volume= 4.782 af, Atten= 0%, Lag= 7.0 min Primary = 1.36 cfs @ 121.54 hrs, Volume= 4.782 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 907.56' @ 121.54 hrs Surf.Area= 0.031 ac Storage= 0.009 af Plug-Flow detention time= 4.2 min calculated for 4.782 af (100% of inflow) Center-of-Mass det. time= 4.3 min ( 7,497.6 - 7,493.3 ) Volume Invert Avail.Storage Storage Description #1 907.00' 1.603 af Custom Stage Data (Prismatic) Listed below (Recalc) Elevation Surf.Area Inc.Store Cum.Store (feet) (acres) (acre-feet) (acre-feet) 907.00 0.000 0.000 0.000 908.00 0.055 0.028 0.028 909.00 0.208 0.131 0.159 910.00 0.413 0.310 0.469 911.00 0.573 0.493 0.962 912.00 0.709 0.641 1.603 Device Routing Invert Outlet Devices #1 Primary 907.00'15.0" Round Culvert L= 48.8' RCP, end-section conforming to fill, Ke= 0.500 Inlet / Outlet Invert= 907.00' / 906.00' S= 0.0205 '/' Cc= 0.900 n= 0.013 Concrete pipe, straight & clean, Flow Area= 1.23 sf #2 Primary 911.22'Asymmetrical Weir, C= 3.27 Offset (feet) 0.00 12.00 18.00 28.00 49.00 88.00 Height (feet) 1.35 0.02 0.00 0.15 0.70 1.35 Primary OutFlow Max=1.36 cfs @ 121.54 hrs HW=907.56' TW=0.00' (Dynamic Tailwater) 1=Culvert (Inlet Controls 1.36 cfs @ 2.55 fps) 2=Asymmetrical Weir ( Controls 0.00 cfs) MN-Snowmelt_10d_100yr 10 day Snowmelt Rainfall=7.20", AMC=4Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 323HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Pond 34P: West - South (existing) Inflow Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)1 0 Inflow Area=8.382 ac Peak Elev=907.56' Storage=0.009 af 1.36 cfs 1.36 cfs MN-Snowmelt_10d_100yr 10 day Snowmelt Rainfall=7.20", AMC=4Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 324HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Pond 35P: Drop MH [57] Hint: Peaked at 895.05' (Flood elevation advised) Inflow Area = 1.357 ac, 69.40% Impervious, Inflow Depth = 3.81" for 10 day Snowmelt event Inflow = 0.24 cfs @ 121.55 hrs, Volume= 0.430 af Outflow = 0.24 cfs @ 121.55 hrs, Volume= 0.430 af, Atten= 0%, Lag= 0.0 min Primary = 0.24 cfs @ 121.55 hrs, Volume= 0.430 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 895.05' @ 121.55 hrs Device Routing Invert Outlet Devices #1 Primary 894.80'12.0" Round Culvert L= 150.0' RCP, sq.cut end projecting, Ke= 0.500 Inlet / Outlet Invert= 894.80' / 894.00' S= 0.0053 '/' Cc= 0.900 n= 0.011 Concrete pipe, straight & clean, Flow Area= 0.79 sf Primary OutFlow Max=0.24 cfs @ 121.55 hrs HW=895.05' TW=891.37' (Dynamic Tailwater) 1=Culvert (Barrel Controls 0.24 cfs @ 2.26 fps) Pond 35P: Drop MH Inflow Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.26 0.24 0.22 0.2 0.18 0.16 0.14 0.12 0.1 0.08 0.06 0.04 0.02 0 Inflow Area=1.357 ac Peak Elev=895.05' 12.0" Round Culvert n=0.011 L=150.0' S=0.0053 '/' 0.24 cfs 0.24 cfs MN-Snowmelt_10d_100yr 10 day Snowmelt Rainfall=7.20", AMC=4Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 325HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Pond 36P: Drop MH [57] Hint: Peaked at 894.86' (Flood elevation advised) Inflow Area = 2.793 ac, 66.00% Impervious, Inflow Depth = 2.72" for 10 day Snowmelt event Inflow = 0.44 cfs @ 122.02 hrs, Volume= 0.632 af Outflow = 0.44 cfs @ 122.02 hrs, Volume= 0.632 af, Atten= 0%, Lag= 0.0 min Primary = 0.44 cfs @ 122.02 hrs, Volume= 0.632 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 894.86' @ 122.02 hrs Device Routing Invert Outlet Devices #1 Primary 894.50'12.0" Round Culvert L= 100.0' RCP, sq.cut end projecting, Ke= 0.500 Inlet / Outlet Invert= 894.50' / 894.00' S= 0.0050 '/' Cc= 0.900 n= 0.011 Concrete pipe, straight & clean, Flow Area= 0.79 sf Primary OutFlow Max=0.44 cfs @ 122.02 hrs HW=894.86' TW=891.38' (Dynamic Tailwater) 1=Culvert (Barrel Controls 0.44 cfs @ 2.58 fps) Pond 36P: Drop MH Inflow Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.48 0.46 0.44 0.42 0.4 0.38 0.36 0.34 0.32 0.3 0.28 0.26 0.24 0.22 0.2 0.18 0.16 0.14 0.12 0.1 0.08 0.06 0.04 0.02 0 Inflow Area=2.793 ac Peak Elev=894.86' 12.0" Round Culvert n=0.011 L=100.0' S=0.0050 '/' 0.44 cfs 0.44 cfs MN-Snowmelt_10d_100yr 10 day Snowmelt Rainfall=7.20", AMC=4Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 326HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Pond 40.1P: South East Inflow Area = 3.753 ac, 81.66% Impervious, Inflow Depth = 6.96" for 10 day Snowmelt event Inflow = 0.72 cfs @ 121.30 hrs, Volume= 2.177 af Outflow = 0.55 cfs @ 122.83 hrs, Volume= 2.177 af, Atten= 23%, Lag= 92.0 min Discarded = 0.07 cfs @ 42.28 hrs, Volume= 1.585 af Primary = 0.48 cfs @ 122.83 hrs, Volume= 0.592 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 894.90' @ 122.83 hrs Surf.Area= 51,048 sf Storage= 19,020 cf Plug-Flow detention time= 1,437.7 min calculated for 2.177 af (100% of inflow) Center-of-Mass det. time= 1,437.8 min ( 8,823.4 - 7,385.6 ) Volume Invert Avail.Storage Storage Description #1 893.70' 34,978 cf Custom Stage Data (Prismatic) Listed below (Recalc) 117,410 cf Overall - 818 cf Embedded = 116,593 cf x 30.0% Voids #2 896.00' 40,511 cf Custom Stage Data (Prismatic) Listed below (Recalc) 102,096 cf Overall - 818 cf Embedded = 101,278 cf x 40.0% Voids #3 893.70' 818 cf 8.0" Round Pipe Storage Inside #1 L= 2,343.0' #4 896.00' 818 cf 8.0" Round Pipe Storage Inside #2 L= 2,343.0' 77,125 cf Total Available Storage Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 893.70 51,048 0 0 896.00 51,048 117,410 117,410 Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 896.00 51,048 0 0 898.00 51,048 102,096 102,096 Device Routing Invert Outlet Devices #1 Primary 893.70'12.0" Round Culvert L= 260.0' RCP, sq.cut end projecting, Ke= 0.500 Inlet / Outlet Invert= 893.70' / 891.88' S= 0.0070 '/' Cc= 0.900 n= 0.011 Concrete pipe, straight & clean, Flow Area= 0.79 sf #2 Device 1 894.50'8.0" Vert. Orifice/Grate C= 0.600 #3 Device 1 896.67'12.0" Vert. Orifice/Grate C= 0.600 #4 Discarded 893.70'0.060 in/hr Exfiltration over Surface area Phase-In= 0.01' Discarded OutFlow Max=0.07 cfs @ 42.28 hrs HW=893.71' (Free Discharge) 4=Exfiltration (Exfiltration Controls 0.07 cfs) Primary OutFlow Max=0.48 cfs @ 122.83 hrs HW=894.90' TW=0.00' (Dynamic Tailwater) 1=Culvert (Passes 0.48 cfs of 3.17 cfs potential flow) 2=Orifice/Grate (Orifice Controls 0.48 cfs @ 2.17 fps) 3=Orifice/Grate ( Controls 0.00 cfs) MN-Snowmelt_10d_100yr 10 day Snowmelt Rainfall=7.20", AMC=4Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 327HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Pond 40.1P: South East Inflow Outflow Discarded Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.8 0.75 0.7 0.65 0.6 0.55 0.5 0.45 0.4 0.35 0.3 0.25 0.2 0.15 0.1 0.05 0 Inflow Area=3.753 ac Peak Elev=894.90' Storage=19,020 cf 0.72 cfs 0.55 cfs 0.07 cfs 0.48 cfs MN-Snowmelt_10d_100yr 10 day Snowmelt Rainfall=7.20", AMC=4Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 328HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Pond 40.2P: South Central Inflow Area = 4.604 ac, 76.19% Impervious, Inflow Depth = 6.96" for 10 day Snowmelt event Inflow = 0.88 cfs @ 121.30 hrs, Volume= 2.671 af Outflow = 0.20 cfs @ 135.21 hrs, Volume= 2.671 af, Atten= 77%, Lag= 834.4 min Discarded = 0.13 cfs @ 84.59 hrs, Volume= 2.539 af Primary = 0.07 cfs @ 135.21 hrs, Volume= 0.132 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 895.94' @ 135.21 hrs Surf.Area= 94,313 sf Storage= 27,703 cf Plug-Flow detention time= 1,531.6 min calculated for 2.671 af (100% of inflow) Center-of-Mass det. time= 1,531.6 min ( 8,917.2 - 7,385.6 ) Volume Invert Avail.Storage Storage Description #1 895.00' 64,623 cf Custom Stage Data (Prismatic) Listed below (Recalc) 216,920 cf Overall - 1,511 cf Embedded = 215,409 cf x 30.0% Voids #2 897.30' 74,846 cf Custom Stage Data (Prismatic) Listed below (Recalc) 188,626 cf Overall - 1,511 cf Embedded = 187,115 cf x 40.0% Voids #3 895.00' 1,511 cf 8.0" Round Pipe Storage Inside #1 L= 4,328.0' #4 897.30' 1,511 cf 8.0" Round Pipe Storage Inside #2 L= 4,328.0' 142,490 cf Total Available Storage Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 895.00 94,313 0 0 897.30 94,313 216,920 216,920 Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 897.30 94,313 0 0 899.30 94,313 188,626 188,626 Device Routing Invert Outlet Devices #1 Primary 895.00'12.0" Round Culvert L= 250.0' RCP, sq.cut end projecting, Ke= 0.500 Inlet / Outlet Invert= 895.00' / 893.25' S= 0.0070 '/' Cc= 0.900 n= 0.011 Concrete pipe, straight & clean, Flow Area= 0.79 sf #2 Device 1 895.80'8.0" Vert. Orifice/Grate C= 0.600 #3 Device 1 897.97'8.0" Vert. Orifice/Grate C= 0.600 #4 Discarded 895.00'0.060 in/hr Exfiltration over Surface area Phase-In= 0.01' Discarded OutFlow Max=0.13 cfs @ 84.59 hrs HW=895.01' (Free Discharge) 4=Exfiltration (Exfiltration Controls 0.13 cfs) Primary OutFlow Max=0.07 cfs @ 135.21 hrs HW=895.94' TW=0.00' (Dynamic Tailwater) 1=Culvert (Passes 0.07 cfs of 2.53 cfs potential flow) 2=Orifice/Grate (Orifice Controls 0.07 cfs @ 1.28 fps) 3=Orifice/Grate ( Controls 0.00 cfs) MN-Snowmelt_10d_100yr 10 day Snowmelt Rainfall=7.20", AMC=4Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 329HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Pond 40.2P: South Central Inflow Outflow Discarded Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.95 0.9 0.85 0.8 0.75 0.7 0.65 0.6 0.55 0.5 0.45 0.4 0.35 0.3 0.25 0.2 0.15 0.1 0.05 0 Inflow Area=4.604 ac Peak Elev=895.94' Storage=27,703 cf 0.88 cfs 0.20 cfs 0.13 cfs 0.07 cfs MN-Snowmelt_10d_100yr 10 day Snowmelt Rainfall=7.20", AMC=4Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 330HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Pond 40.3P: South Inflow Area = 5.237 ac, 69.55% Impervious, Inflow Depth = 6.96" for 10 day Snowmelt event Inflow = 1.00 cfs @ 121.30 hrs, Volume= 3.038 af Outflow = 0.82 cfs @ 122.49 hrs, Volume= 3.038 af, Atten= 18%, Lag= 71.6 min Discarded = 0.08 cfs @ 27.19 hrs, Volume= 1.923 af Primary = 0.74 cfs @ 122.49 hrs, Volume= 1.115 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 898.83' @ 122.49 hrs Surf.Area= 60,232 sf Storage= 24,720 cf Plug-Flow detention time= 1,403.7 min calculated for 3.038 af (100% of inflow) Center-of-Mass det. time= 1,403.8 min ( 8,789.4 - 7,385.6 ) Volume Invert Avail.Storage Storage Description #1 897.50' 41,271 cf Custom Stage Data (Prismatic) Listed below (Recalc) 138,534 cf Overall - 965 cf Embedded = 137,569 cf x 30.0% Voids #2 899.80' 47,800 cf Custom Stage Data (Prismatic) Listed below (Recalc) 120,464 cf Overall - 965 cf Embedded = 119,499 cf x 40.0% Voids #3 897.50' 965 cf 8.0" Round Pipe Storage Inside #1 L= 2,764.0' #4 899.80' 965 cf 8.0" Round Pipe Storage Inside #2 L= 2,764.0' 91,000 cf Total Available Storage Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 897.50 60,232 0 0 899.80 60,232 138,534 138,534 Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 899.80 60,232 0 0 901.80 60,232 120,464 120,464 Device Routing Invert Outlet Devices #1 Primary 897.50'12.0" Round Culvert L= 175.0' RCP, sq.cut end projecting, Ke= 0.500 Inlet / Outlet Invert= 897.50' / 896.27' S= 0.0070 '/' Cc= 0.900 n= 0.011 Concrete pipe, straight & clean, Flow Area= 0.79 sf #2 Device 1 898.30'8.0" Vert. Orifice/Grate C= 0.600 #3 Device 1 900.47'8.0" Vert. Orifice/Grate C= 0.600 #4 Discarded 897.50'0.060 in/hr Exfiltration over Surface area Phase-In= 0.01' Discarded OutFlow Max=0.08 cfs @ 27.19 hrs HW=897.51' (Free Discharge) 4=Exfiltration (Exfiltration Controls 0.08 cfs) Primary OutFlow Max=0.74 cfs @ 122.49 hrs HW=898.83' TW=0.00' (Dynamic Tailwater) 1=Culvert (Passes 0.74 cfs of 3.43 cfs potential flow) 2=Orifice/Grate (Orifice Controls 0.74 cfs @ 2.48 fps) 3=Orifice/Grate ( Controls 0.00 cfs) MN-Snowmelt_10d_100yr 10 day Snowmelt Rainfall=7.20", AMC=4Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 331HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Pond 40.3P: South Inflow Outflow Discarded Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)1 0 Inflow Area=5.237 ac Peak Elev=898.83' Storage=24,720 cf 1.00 cfs 0.82 cfs 0.08 cfs 0.74 cfs MN-Snowmelt_10d_100yr 10 day Snowmelt Rainfall=7.20", AMC=4Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 332HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Pond 41.1P: South East Inflow Area = 1.607 ac, 85.30% Impervious, Inflow Depth = 6.96" for 10 day Snowmelt event Inflow = 0.31 cfs @ 121.30 hrs, Volume= 0.932 af Outflow = 0.06 cfs @ 101.94 hrs, Volume= 0.932 af, Atten= 80%, Lag= 0.0 min Discarded = 0.06 cfs @ 101.94 hrs, Volume= 0.932 af Primary = 0.00 cfs @ 0.00 hrs, Volume= 0.000 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 888.55' @ 137.91 hrs Surf.Area= 45,024 sf Storage= 7,824 cf Plug-Flow detention time= 810.2 min calculated for 0.932 af (100% of inflow) Center-of-Mass det. time= 810.2 min ( 8,195.8 - 7,385.6 ) Volume Invert Avail.Storage Storage Description #1 888.00' 30,850 cf Custom Stage Data (Prismatic) Listed below (Recalc) 103,555 cf Overall - 721 cf Embedded = 102,834 cf x 30.0% Voids #2 890.30' 35,731 cf Custom Stage Data (Prismatic) Listed below (Recalc) 90,048 cf Overall - 721 cf Embedded = 89,327 cf x 40.0% Voids #3 888.00' 721 cf 8.0" Round Pipe Storage Inside #1 L= 2,066.0' #4 890.30' 721 cf 8.0" Round Pipe Storage Inside #2 L= 2,066.0' 68,023 cf Total Available Storage Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 888.00 45,024 0 0 890.30 45,024 103,555 103,555 Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 890.30 45,024 0 0 892.30 45,024 90,048 90,048 Device Routing Invert Outlet Devices #1 Primary 888.00'12.0" Round Culvert L= 70.0' RCP, sq.cut end projecting, Ke= 0.500 Inlet / Outlet Invert= 888.00' / 887.51' S= 0.0070 '/' Cc= 0.900 n= 0.011 Concrete pipe, straight & clean, Flow Area= 0.79 sf #2 Device 1 888.80'8.0" Vert. Orifice/Grate C= 0.600 #3 Device 1 890.97'8.0" Vert. Orifice/Grate C= 0.600 #4 Discarded 888.00'0.060 in/hr Exfiltration over Surface area Phase-In= 0.01' Discarded OutFlow Max=0.06 cfs @ 101.94 hrs HW=888.01' (Free Discharge) 4=Exfiltration (Exfiltration Controls 0.06 cfs) Primary OutFlow Max=0.00 cfs @ 0.00 hrs HW=888.00' TW=0.00' (Dynamic Tailwater) 1=Culvert ( Controls 0.00 cfs) 2=Orifice/Grate ( Controls 0.00 cfs) 3=Orifice/Grate ( Controls 0.00 cfs) MN-Snowmelt_10d_100yr 10 day Snowmelt Rainfall=7.20", AMC=4Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 333HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Pond 41.1P: South East Inflow Outflow Discarded Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.34 0.32 0.3 0.28 0.26 0.24 0.22 0.2 0.18 0.16 0.14 0.12 0.1 0.08 0.06 0.04 0.02 0 Inflow Area=1.607 ac Peak Elev=888.55' Storage=7,824 cf 0.31 cfs 0.06 cfs 0.06 cfs 0.00 cfs MN-Snowmelt_10d_100yr 10 day Snowmelt Rainfall=7.20", AMC=4Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 334HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Pond 41.2P: South Central Inflow Area = 3.591 ac, 80.17% Impervious, Inflow Depth = 6.96" for 10 day Snowmelt event Inflow = 0.69 cfs @ 121.30 hrs, Volume= 2.083 af Outflow = 0.67 cfs @ 121.50 hrs, Volume= 2.083 af, Atten= 2%, Lag= 11.7 min Discarded = 0.02 cfs @ 9.85 hrs, Volume= 0.551 af Primary = 0.65 cfs @ 121.50 hrs, Volume= 1.532 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 882.68' @ 121.50 hrs Surf.Area= 16,787 sf Storage= 6,110 cf Plug-Flow detention time= 746.1 min calculated for 2.083 af (100% of inflow) Center-of-Mass det. time= 746.2 min ( 8,131.8 - 7,385.6 ) Volume Invert Avail.Storage Storage Description #1 881.50' 11,502 cf Custom Stage Data (Prismatic) Listed below (Recalc) 38,610 cf Overall - 269 cf Embedded = 38,341 cf x 30.0% Voids #2 883.80' 13,322 cf Custom Stage Data (Prismatic) Listed below (Recalc) 33,574 cf Overall - 269 cf Embedded = 33,305 cf x 40.0% Voids #3 881.50' 269 cf 8.0" Round Pipe Storage Inside #1 L= 770.0' #4 883.80' 269 cf 8.0" Round Pipe Storage Inside #2 L= 770.0' 25,362 cf Total Available Storage Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 881.50 16,787 0 0 883.80 16,787 38,610 38,610 Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 883.80 16,787 0 0 885.80 16,787 33,574 33,574 Device Routing Invert Outlet Devices #1 Primary 881.50'18.0" Round Culvert L= 22.0' RCP, sq.cut end projecting, Ke= 0.500 Inlet / Outlet Invert= 881.50' / 881.28' S= 0.0100 '/' Cc= 0.900 n= 0.011 Concrete pipe, straight & clean, Flow Area= 1.77 sf #2 Device 1 882.30'15.0" Vert. Orifice/Grate C= 0.600 #3 Device 1 884.47'18.0" Vert. Orifice/Grate C= 0.600 #4 Discarded 881.50'0.060 in/hr Exfiltration over Surface area Phase-In= 0.01' Discarded OutFlow Max=0.02 cfs @ 9.85 hrs HW=881.51' (Free Discharge) 4=Exfiltration (Exfiltration Controls 0.02 cfs) Primary OutFlow Max=0.65 cfs @ 121.50 hrs HW=882.68' TW=0.00' (Dynamic Tailwater) 1=Culvert (Passes 0.65 cfs of 4.69 cfs potential flow) 2=Orifice/Grate (Orifice Controls 0.65 cfs @ 2.09 fps) 3=Orifice/Grate ( Controls 0.00 cfs) MN-Snowmelt_10d_100yr 10 day Snowmelt Rainfall=7.20", AMC=4Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 335HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Pond 41.2P: South Central Inflow Outflow Discarded Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.75 0.7 0.65 0.6 0.55 0.5 0.45 0.4 0.35 0.3 0.25 0.2 0.15 0.1 0.05 0 Inflow Area=3.591 ac Peak Elev=882.68' Storage=6,110 cf 0.69 cfs 0.67 cfs 0.02 cfs 0.65 cfs MN-Snowmelt_10d_100yr 10 day Snowmelt Rainfall=7.20", AMC=4Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 336HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Pond 41.3P: South West Inflow Area = 0.686 ac, 93.81% Impervious, Inflow Depth = 6.96" for 10 day Snowmelt event Inflow = 0.13 cfs @ 121.30 hrs, Volume= 0.398 af Outflow = 0.03 cfs @ 105.67 hrs, Volume= 0.398 af, Atten= 77%, Lag= 0.0 min Discarded = 0.03 cfs @ 105.67 hrs, Volume= 0.398 af Primary = 0.00 cfs @ 0.00 hrs, Volume= 0.000 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 890.16' @ 134.67 hrs Surf.Area= 22,024 sf Storage= 2,885 cf Plug-Flow detention time= 533.0 min calculated for 0.398 af (100% of inflow) Center-of-Mass det. time= 533.0 min ( 7,918.6 - 7,385.6 ) Volume Invert Avail.Storage Storage Description #1 889.75' 15,091 cf Custom Stage Data (Prismatic) Listed below (Recalc) 50,655 cf Overall - 353 cf Embedded = 50,303 cf x 30.0% Voids #2 892.05' 17,478 cf Custom Stage Data (Prismatic) Listed below (Recalc) 44,048 cf Overall - 353 cf Embedded = 43,695 cf x 40.0% Voids #3 889.75' 353 cf 8.0" Round Pipe Storage Inside #1 L= 1,010.0' #4 892.05' 353 cf 8.0" Round Pipe Storage Inside #2 L= 1,010.0' 33,274 cf Total Available Storage Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 889.75 22,024 0 0 892.05 22,024 50,655 50,655 Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 892.05 22,024 0 0 894.05 22,024 44,048 44,048 Device Routing Invert Outlet Devices #1 Primary 889.75'12.0" Round Culvert L= 45.0' RCP, sq.cut end projecting, Ke= 0.500 Inlet / Outlet Invert= 889.75' / 889.43' S= 0.0071 '/' Cc= 0.900 n= 0.011 Concrete pipe, straight & clean, Flow Area= 0.79 sf #2 Device 1 890.55'8.0" Vert. Orifice/Grate C= 0.600 #3 Device 1 892.72'8.0" Vert. Orifice/Grate C= 0.600 #4 Discarded 889.75'0.060 in/hr Exfiltration over Surface area Phase-In= 0.01' Discarded OutFlow Max=0.03 cfs @ 105.67 hrs HW=889.76' (Free Discharge) 4=Exfiltration (Exfiltration Controls 0.03 cfs) Primary OutFlow Max=0.00 cfs @ 0.00 hrs HW=889.75' TW=0.00' (Dynamic Tailwater) 1=Culvert ( Controls 0.00 cfs) 2=Orifice/Grate ( Controls 0.00 cfs) 3=Orifice/Grate ( Controls 0.00 cfs) MN-Snowmelt_10d_100yr 10 day Snowmelt Rainfall=7.20", AMC=4Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 337HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Pond 41.3P: South West Inflow Outflow Discarded Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.14 0.13 0.12 0.11 0.1 0.09 0.08 0.07 0.06 0.05 0.04 0.03 0.02 0.01 0 Inflow Area=0.686 ac Peak Elev=890.16' Storage=2,885 cf 0.13 cfs 0.03 cfs 0.03 cfs 0.00 cfs MN-Snowmelt_10d_100yr 10 day Snowmelt Rainfall=7.20", AMC=4Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 338HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Pond 44P: Wetland 4 Inflow Area = 24.628 ac, 36.70% Impervious, Inflow Depth = 4.42" for 10 day Snowmelt event Inflow = 3.25 cfs @ 121.50 hrs, Volume= 9.062 af Outflow = 3.25 cfs @ 121.50 hrs, Volume= 9.061 af, Atten= 0%, Lag= 0.5 min Primary = 3.25 cfs @ 121.50 hrs, Volume= 9.061 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 884.30' @ 121.50 hrs Surf.Area= 1,540 sf Storage= 364 cf Plug-Flow detention time= 5.5 min calculated for 9.061 af (100% of inflow) Center-of-Mass det. time= 4.9 min ( 7,594.4 - 7,589.5 ) Volume Invert Avail.Storage Storage Description #1 884.00' 37,633 cf Custom Stage Data (Prismatic) Listed below (Recalc) Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 884.00 870 0 0 884.50 1,980 713 713 885.00 3,500 1,370 2,083 886.00 7,800 5,650 7,733 887.00 14,000 10,900 18,633 888.00 24,000 19,000 37,633 Device Routing Invert Outlet Devices #1 Primary 884.03'Asymmetrical Weir, C= 3.27 Offset (feet) 0.00 51.00 133.60 176.00 217.30 239.00 Elev. (feet) 889.78 886.05 884.03 885.84 889.00 889.78 Primary OutFlow Max=3.25 cfs @ 121.50 hrs HW=884.30' TW=0.00' (Dynamic Tailwater) 1=Asymmetrical Weir (Weir Controls 3.25 cfs @ 0.68 fps) MN-Snowmelt_10d_100yr 10 day Snowmelt Rainfall=7.20", AMC=4Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 339HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Pond 44P: Wetland 4 Inflow Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)3 2 1 0 Inflow Area=24.628 ac Peak Elev=884.30' Storage=364 cf 3.25 cfs 3.25 cfs MN-Snowmelt_10d_100yr 10 day Snowmelt Rainfall=7.20", AMC=4Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 340HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Pond 46P: Triangle Basin Inflow Area = 2.229 ac, 19.60% Impervious, Inflow Depth = 6.96" for 10 day Snowmelt event Inflow = 0.42 cfs @ 121.31 hrs, Volume= 1.293 af Outflow = 0.42 cfs @ 121.37 hrs, Volume= 1.293 af, Atten= 0%, Lag= 3.6 min Discarded = 0.00 cfs @ 6.38 hrs, Volume= 0.052 af Primary = 0.42 cfs @ 121.37 hrs, Volume= 1.241 af Secondary = 0.00 cfs @ 0.00 hrs, Volume= 0.000 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 885.49' @ 121.37 hrs Surf.Area= 1,586 sf Storage= 551 cf Plug-Flow detention time= 121.9 min calculated for 1.293 af (100% of inflow) Center-of-Mass det. time= 121.9 min ( 7,509.9 - 7,388.0 ) Volume Invert Avail.Storage Storage Description #1 884.37' 1,087 cf Sand section (Prismatic) Listed below (Recalc) 3,648 cf Overall - 24 cf Embedded = 3,623 cf x 30.0% Voids #2 884.37' 24 cf 8.0" Round Pipe Storage Inside #1 L= 70.0' #3 886.67' 159 cf Topsoil (Prismatic) Listed below (Recalc) 793 cf Overall x 20.0% Voids #4 887.17' 14,801 cf Open pond (Prismatic) Listed below (Recalc) 16,071 cf Total Available Storage Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 884.37 1,586 0 0 886.67 1,586 3,648 3,648 Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 886.67 1,586 0 0 887.17 1,586 793 793 Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 887.17 1,586 0 0 890.90 6,350 14,801 14,801 Device Routing Invert Outlet Devices #1 Primary 884.37'18.0" Round Culvert L= 125.0' RCP, sq.cut end projecting, Ke= 0.500 Inlet / Outlet Invert= 884.37' / 884.00' S= 0.0030 '/' Cc= 0.900 n= 0.011 Concrete pipe, straight & clean, Flow Area= 1.77 sf #2 Device 1 885.17'12.0" Vert. Orifice/Grate C= 0.600 #3 Device 1 887.41'12.0" Vert. Orifice/Grate C= 0.600 #4 Secondary 890.75'20.0' long x 5.0' breadth Broad-Crested Rectangular Weir Head (feet) 0.20 0.40 0.60 0.80 1.00 1.20 1.40 1.60 1.80 2.00 2.50 3.00 3.50 4.00 4.50 5.00 5.50 Coef. (English) 2.34 2.50 2.70 2.68 2.68 2.66 2.65 2.65 2.65 MN-Snowmelt_10d_100yr 10 day Snowmelt Rainfall=7.20", AMC=4Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 341HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC 2.65 2.67 2.66 2.68 2.70 2.74 2.79 2.88 #5 Discarded 884.37'0.060 in/hr Exfiltration over Surface area Phase-In= 0.01' Discarded OutFlow Max=0.00 cfs @ 6.38 hrs HW=884.38' (Free Discharge) 5=Exfiltration (Exfiltration Controls 0.00 cfs) Primary OutFlow Max=0.42 cfs @ 121.37 hrs HW=885.49' TW=0.00' (Dynamic Tailwater) 1=Culvert (Passes 0.42 cfs of 3.82 cfs potential flow) 2=Orifice/Grate (Orifice Controls 0.42 cfs @ 1.93 fps) 3=Orifice/Grate ( Controls 0.00 cfs) Secondary OutFlow Max=0.00 cfs @ 0.00 hrs HW=884.37' TW=0.00' (Dynamic Tailwater) 4=Broad-Crested Rectangular Weir ( Controls 0.00 cfs) Pond 46P: Triangle Basin Inflow Outflow Discarded Primary Secondary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.45 0.4 0.35 0.3 0.25 0.2 0.15 0.1 0.05 0 Inflow Area=2.229 ac Peak Elev=885.49' Storage=551 cf 0.42 cfs 0.42 cfs 0.00 cfs 0.42 cfs 0.00 cfs MN-Snowmelt_10d_100yr 10 day Snowmelt Rainfall=7.20", AMC=4Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 342HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Pond 47P: Bluff Creek - West Basin Inflow Area = 7.031 ac, 70.52% Impervious, Inflow Depth = 6.96" for 10 day Snowmelt event Inflow = 1.34 cfs @ 121.28 hrs, Volume= 4.078 af Outflow = 0.65 cfs @ 125.36 hrs, Volume= 4.078 af, Atten= 51%, Lag= 245.0 min Discarded = 0.15 cfs @ 54.61 hrs, Volume= 3.249 af Primary = 0.50 cfs @ 125.36 hrs, Volume= 0.829 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 909.42' @ 125.36 hrs Surf.Area= 107,300 sf Storage= 40,330 cf Plug-Flow detention time= 1,532.3 min calculated for 4.078 af (100% of inflow) Center-of-Mass det. time= 1,532.2 min ( 8,916.3 - 7,384.1 ) Volume Invert Avail.Storage Storage Description #1 908.20' 73,521 cf Custom Stage Data (Prismatic) Listed below (Recalc) 246,790 cf Overall - 1,719 cf Embedded = 245,071 cf x 30.0% Voids #2 910.50' 85,152 cf Custom Stage Data (Prismatic) Listed below (Recalc) 214,600 cf Overall - 1,719 cf Embedded = 212,881 cf x 40.0% Voids #3 908.20' 1,719 cf 8.0" Round Pipe Storage Inside #1 L= 4,925.0' #4 910.50' 1,719 cf 8.0" Round Pipe Storage Inside #2 L= 4,925.0' 162,112 cf Total Available Storage Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 908.20 107,300 0 0 910.50 107,300 246,790 246,790 Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 910.50 107,300 0 0 912.50 107,300 214,600 214,600 Device Routing Invert Outlet Devices #1 Primary 908.20'12.0" Round Culvert L= 307.0' RCP, square edge headwall, Ke= 0.500 Inlet / Outlet Invert= 908.20' / 905.13' S= 0.0100 '/' Cc= 0.900 n= 0.011 Concrete pipe, straight & clean, Flow Area= 0.79 sf #2 Device 1 909.00'8.0" Vert. Orifice/Grate C= 0.600 #3 Device 1 911.24'8.0" Vert. Orifice/Grate C= 0.600 #4 Discarded 908.20'0.060 in/hr Exfiltration over Surface area Phase-In= 0.01' Discarded OutFlow Max=0.15 cfs @ 54.61 hrs HW=908.21' (Free Discharge) 4=Exfiltration (Exfiltration Controls 0.15 cfs) Primary OutFlow Max=0.50 cfs @ 125.36 hrs HW=909.42' TW=0.00' (Dynamic Tailwater) 1=Culvert (Passes 0.50 cfs of 3.20 cfs potential flow) 2=Orifice/Grate (Orifice Controls 0.50 cfs @ 2.19 fps) 3=Orifice/Grate ( Controls 0.00 cfs) MN-Snowmelt_10d_100yr 10 day Snowmelt Rainfall=7.20", AMC=4Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 343HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Pond 47P: Bluff Creek - West Basin Inflow Outflow Discarded Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)1 0 Inflow Area=7.031 ac Peak Elev=909.42' Storage=40,330 cf 1.34 cfs 0.65 cfs 0.15 cfs 0.50 cfs MN-Snowmelt_10d_100yr 10 day Snowmelt Rainfall=7.20", AMC=4Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 344HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Pond 48P: Bluff Creek - East Basin Inflow Area = 3.441 ac, 81.34% Impervious, Inflow Depth = 6.96" for 10 day Snowmelt event Inflow = 0.66 cfs @ 121.24 hrs, Volume= 1.996 af Outflow = 0.41 cfs @ 123.67 hrs, Volume= 1.996 af, Atten= 37%, Lag= 145.8 min Discarded = 0.07 cfs @ 53.44 hrs, Volume= 1.574 af Primary = 0.34 cfs @ 123.67 hrs, Volume= 0.422 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 896.48' @ 123.67 hrs Surf.Area= 52,085 sf Storage= 18,259 cf Plug-Flow detention time= 1,463.1 min calculated for 1.996 af (100% of inflow) Center-of-Mass det. time= 1,463.1 min ( 8,844.0 - 7,381.0 ) Volume Invert Avail.Storage Storage Description #1 895.35' 35,688 cf Custom Stage Data (Prismatic) Listed below (Recalc) 119,795 cf Overall - 834 cf Embedded = 118,961 cf x 30.0% Voids #2 897.65' 41,334 cf Custom Stage Data (Prismatic) Listed below (Recalc) 104,170 cf Overall - 834 cf Embedded = 103,336 cf x 40.0% Voids #3 895.35' 834 cf 8.0" Round Pipe Storage Inside #1 L= 2,390.0' #4 897.65' 834 cf 8.0" Round Pipe Storage Inside #2 L= 2,390.0' 78,691 cf Total Available Storage Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 895.35 52,085 0 0 897.65 52,085 119,795 119,795 Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 897.65 52,085 0 0 899.65 52,085 104,170 104,170 Device Routing Invert Outlet Devices #1 Primary 895.35'12.0" Round Culvert L= 637.0' RCP, square edge headwall, Ke= 0.500 Inlet / Outlet Invert= 895.35' / 888.98' S= 0.0100 '/' Cc= 0.900 n= 0.011 Concrete pipe, straight & clean, Flow Area= 0.79 sf #2 Device 1 896.15'8.0" Vert. Orifice/Grate C= 0.600 #3 Device 1 898.39'8.0" Vert. Orifice/Grate C= 0.600 #4 Discarded 895.35'0.060 in/hr Exfiltration over Surface area Phase-In= 0.01' Discarded OutFlow Max=0.07 cfs @ 53.44 hrs HW=895.36' (Free Discharge) 4=Exfiltration (Exfiltration Controls 0.07 cfs) Primary OutFlow Max=0.34 cfs @ 123.67 hrs HW=896.48' TW=0.00' (Dynamic Tailwater) 1=Culvert (Passes 0.34 cfs of 3.00 cfs potential flow) 2=Orifice/Grate (Orifice Controls 0.34 cfs @ 1.96 fps) 3=Orifice/Grate ( Controls 0.00 cfs) MN-Snowmelt_10d_100yr 10 day Snowmelt Rainfall=7.20", AMC=4Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 345HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Pond 48P: Bluff Creek - East Basin Inflow Outflow Discarded Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.7 0.65 0.6 0.55 0.5 0.45 0.4 0.35 0.3 0.25 0.2 0.15 0.1 0.05 0 Inflow Area=3.441 ac Peak Elev=896.48' Storage=18,259 cf 0.66 cfs 0.41 cfs 0.07 cfs 0.34 cfs MN-Snowmelt_10d_100yr 10 day Snowmelt Rainfall=7.20", AMC=4Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 346HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Pond 48P(2): Bluff Creek - East Basin Inflow Area = 2.152 ac, 68.04% Impervious, Inflow Depth = 6.96" for 10 day Snowmelt event Inflow = 0.41 cfs @ 121.30 hrs, Volume= 1.248 af Outflow = 0.38 cfs @ 121.83 hrs, Volume= 1.248 af, Atten= 7%, Lag= 31.7 min Discarded = 0.03 cfs @ 26.46 hrs, Volume= 0.779 af Primary = 0.35 cfs @ 121.83 hrs, Volume= 0.470 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 896.89' @ 121.83 hrs Surf.Area= 24,429 sf Storage= 8,596 cf Plug-Flow detention time= 1,331.5 min calculated for 1.248 af (100% of inflow) Center-of-Mass det. time= 1,331.6 min ( 8,717.2 - 7,385.6 ) Volume Invert Avail.Storage Storage Description #1 895.75' 16,739 cf Custom Stage Data (Prismatic) Listed below (Recalc) 56,187 cf Overall - 391 cf Embedded = 55,795 cf x 30.0% Voids #2 898.05' 19,387 cf Custom Stage Data (Prismatic) Listed below (Recalc) 48,858 cf Overall - 391 cf Embedded = 48,467 cf x 40.0% Voids #3 895.75' 391 cf 8.0" Round Pipe Storage Inside #1 L= 1,121.0' #4 898.05' 391 cf 8.0" Round Pipe Storage Inside #2 L= 1,121.0' 36,908 cf Total Available Storage Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 895.75 24,429 0 0 898.05 24,429 56,187 56,187 Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 898.05 24,429 0 0 900.05 24,429 48,858 48,858 Device Routing Invert Outlet Devices #1 Primary 895.75'8.0" Round Culvert L= 50.0' RCP, square edge headwall, Ke= 0.500 Inlet / Outlet Invert= 895.75' / 895.25' S= 0.0100 '/' Cc= 0.900 n= 0.011 Concrete pipe, straight & clean, Flow Area= 0.35 sf #2 Device 1 896.55'8.0" Vert. Orifice/Grate C= 0.600 #3 Device 1 898.79'8.0" Vert. Orifice/Grate C= 0.600 #4 Discarded 895.75'0.060 in/hr Exfiltration over Surface area Phase-In= 0.01' Discarded OutFlow Max=0.03 cfs @ 26.46 hrs HW=895.76' (Free Discharge) 4=Exfiltration (Exfiltration Controls 0.03 cfs) Primary OutFlow Max=0.35 cfs @ 121.83 hrs HW=896.89' TW=0.00' (Dynamic Tailwater) 1=Culvert (Passes 0.35 cfs of 1.49 cfs potential flow) 2=Orifice/Grate (Orifice Controls 0.35 cfs @ 1.97 fps) 3=Orifice/Grate ( Controls 0.00 cfs) MN-Snowmelt_10d_100yr 10 day Snowmelt Rainfall=7.20", AMC=4Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 347HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Pond 48P(2): Bluff Creek - East Basin Inflow Outflow Discarded Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.46 0.44 0.42 0.4 0.38 0.36 0.34 0.32 0.3 0.28 0.26 0.24 0.22 0.2 0.18 0.16 0.14 0.12 0.1 0.08 0.06 0.04 0.02 0 Inflow Area=2.152 ac Peak Elev=896.89' Storage=8,596 cf 0.41 cfs 0.38 cfs 0.03 cfs 0.35 cfs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 348HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Time span=0.00-360.00 hrs, dt=0.01 hrs, 36001 points Runoff by SCS TR-20 method, UH=SCS, Weighted-Q Reach routing by Dyn-Stor-Ind method - Pond routing by Dyn-Stor-Ind method Runoff Area=228,234 sf 16.43% Impervious Runoff Depth=2.56"Subcatchment 21S: Direct to 21P Tc=10.0 min CN=WQ Runoff=19.56 cfs 1.117 af Runoff Area=10,548 sf 0.00% Impervious Runoff Depth=2.10"Subcatchment 22oS: From Lyman Flow Length=57' Slope=0.3330 '/' Tc=5.0 min CN=78 Runoff=0.98 cfs 0.042 af Runoff Area=41,671 sf 0.00% Impervious Runoff Depth=2.27"Subcatchment 22S: Direct to Wetland 6 Tc=5.0 min CN=80 Runoff=4.18 cfs 0.181 af Runoff Area=59,105 sf 69.40% Impervious Runoff Depth=3.49"Subcatchment 24S: Northwest Tc=10.0 min CN=WQ Runoff=6.50 cfs 0.395 af Runoff Area=202,586 sf 45.17% Impervious Runoff Depth=3.07"Subcatchment 25S: West North Tc=10.0 min CN=WQ Runoff=20.02 cfs 1.188 af Runoff Area=121,658 sf 66.00% Impervious Runoff Depth=3.43"Subcatchment 28S: Avienda Pkwy - NW Tc=15.0 min CN=WQ Runoff=10.90 cfs 0.799 af Runoff Area=1,162 sf 100.00% Impervious Runoff Depth=4.03"Subcatchment 29oS: North Offsite Tc=5.0 min CN=98 Runoff=0.18 cfs 0.009 af Runoff Area=32,839 sf 22.84% Impervious Runoff Depth=2.67"Subcatchment 31S: West Central Flow Length=360' Slope=0.0200 '/' Tc=14.7 min UI Adjusted CN=WQ Runoff=2.44 cfs 0.168 af Runoff Area=115,865 sf 17.26% Impervious Runoff Depth=2.59"Subcatchment 33oS: Offsite West - North Flow Length=431' Tc=7.3 min UI Adjusted CN=WQ Runoff=11.10 cfs 0.573 af Runoff Area=78,153 sf 0.00% Impervious Runoff Depth=2.85"Subcatchment 33S: Direct to Wetland 3 Tc=12.0 min CN=WQ Runoff=6.77 cfs 0.425 af Runoff Area=25,470 sf 19.98% Impervious Runoff Depth=2.62"Subcatchment 34dS: Offsite West Direct Tc=10.0 min CN=WQ Runoff=2.22 cfs 0.128 af Runoff Area=32,710 sf 8.25% Impervious Runoff Depth=2.31"Subcatchment 34oS: Offsite to West South Flow Length=37' Slope=0.1620 '/' Tc=5.0 min UI Adjusted CN=WQ Runoff=3.29 cfs 0.145 af Runoff Area=2.423 ac 0.00% Impervious Runoff Depth=0.64"Subcatchment 34S: West Woods Flow Length=268' Tc=11.1 min CN=55 Runoff=1.48 cfs 0.129 af Runoff Area=3.790 ac 0.00% Impervious Runoff Depth=0.64"Subcatchment 35S: Southwest Flow Length=270' Tc=18.3 min CN=55 Runoff=1.88 cfs 0.203 af Runoff Area=1,628 sf 100.00% Impervious Runoff Depth=4.03"Subcatchment 36oS: Southwest Offsite Tc=5.0 min CN=98 Runoff=0.26 cfs 0.013 af Runoff Area=163,468 sf 81.66% Impervious Runoff Depth=3.71"Subcatchment 40.1S: South - East Tc=10.0 min CN=WQ Runoff=18.90 cfs 1.160 af MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 349HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Runoff Area=200,567 sf 76.19% Impervious Runoff Depth=3.61"Subcatchment 40.2S: South - Central Tc=10.0 min CN=WQ Runoff=22.68 cfs 1.387 af Runoff Area=228,145 sf 69.55% Impervious Runoff Depth=3.50"Subcatchment 40.3S: South - West Tc=10.0 min CN=WQ Runoff=25.10 cfs 1.526 af Runoff Area=69,984 sf 85.30% Impervious Runoff Depth=3.77"Subcatchment 41.1S: South - East Tc=10.0 min CN=WQ Runoff=8.21 cfs 0.505 af Runoff Area=156,419 sf 80.17% Impervious Runoff Depth=3.68"Subcatchment 41.2S: South - Central Tc=10.0 min CN=WQ Runoff=17.98 cfs 1.102 af Runoff Area=29,884 sf 93.81% Impervious Runoff Depth=3.93"Subcatchment 41.3S: South - west Tc=10.0 min CN=WQ Runoff=3.62 cfs 0.224 af Runoff Area=41,871 sf 0.00% Impervious Runoff Depth=2.27"Subcatchment 42.1S: South Tc=5.0 min CN=80 Runoff=4.20 cfs 0.182 af Runoff Area=24,525 sf 0.00% Impervious Runoff Depth=2.27"Subcatchment 42.2S: Southeast Tc=5.0 min CN=80 Runoff=2.46 cfs 0.106 af Runoff Area=3.222 ac 0.00% Impervious Runoff Depth=0.64"Subcatchment 43.1S: East Woods Flow Length=530' Tc=15.2 min CN=55 Runoff=1.73 cfs 0.172 af Runoff Area=1.862 ac 0.00% Impervious Runoff Depth=0.64"Subcatchment 43.2S: Northeast Woods Flow Length=623' Tc=19.5 min CN=55 Runoff=0.90 cfs 0.100 af Runoff Area=441,314 sf 0.00% Impervious Runoff Depth=0.64"Subcatchment 44S: North Woods Flow Length=599' Tc=16.5 min CN=55 Runoff=5.26 cfs 0.541 af Runoff Area=206,303 sf 65.51% Impervious Runoff Depth=3.37"Subcatchment 45S: Central - West Tc=10.0 min CN=WQ Runoff=22.68 cfs 1.330 af Runoff Area=97,082 sf 19.60% Impervious Runoff Depth=2.61"Subcatchment 46S: South Townhomes Flow Length=701' Tc=12.6 min CN=WQ Runoff=7.61 cfs 0.485 af Runoff Area=2.295 ac 80.87% Impervious Runoff Depth=3.70"Subcatchment 47S: Bluff Creek Blvd - West Tc=5.0 min CN=WQ Runoff=14.61 cfs 0.707 af Runoff Area=93,721 sf 68.04% Impervious Runoff Depth=3.47"Subcatchment 48.1S: Direct to 48P (2) Tc=10.0 min CN=WQ Runoff=10.25 cfs 0.622 af Runoff Area=3.441 ac 81.34% Impervious Runoff Depth=3.70"Subcatchment 48S: Bluff Creek Blvd - East Tc=5.0 min CN=WQ Runoff=21.95 cfs 1.062 af Inflow=6.72 cfs 2.876 afReach 20R: Northwest Drainage Outflow=6.72 cfs 2.876 af Avg. Flow Depth=0.46' Max Vel=0.82 fps Inflow=6.78 cfs 2.876 afReach 21R: Lower Wetland 6 n=0.050 L=187.0' S=0.0053 '/' Capacity=3,072.14 cfs Outflow=6.72 cfs 2.876 af MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 350HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Inflow=7.26 cfs 1.763 afReach 30R: SW Drainage Outflow=7.26 cfs 1.763 af Inflow=3.11 cfs 0.330 afReach 35R: Direct Runoff Outflow=3.11 cfs 0.330 af Inflow=29.76 cfs 6.997 afReach 40R: South Drainage Outflow=29.76 cfs 6.997 af Inflow=9.40 cfs 1.725 afReach 42.1R: South Outflow=9.40 cfs 1.725 af Inflow=5.10 cfs 1.970 afReach 42.2R: Southeast Outflow=5.10 cfs 1.970 af Inflow=14.22 cfs 3.130 afReach 44R: Wetland 4 Channel Outflow=14.22 cfs 3.130 af Inflow=8.10 cfs 2.490 afReach 48R: Development to Wetland 4 Outflow=8.10 cfs 2.490 af Inflow=43.36 cfs 11.636 afReach 50R: Bluff Creek Drainage Outflow=43.36 cfs 11.636 af Peak Elev=893.18' Storage=57,585 cf Inflow=29.98 cfs 3.005 afPond 21P: North Basin Discarded=0.16 cfs 0.362 af Primary=6.34 cfs 2.644 af Secondary=0.00 cfs 0.000 af Outflow=6.50 cfs 3.005 af Peak Elev=915.19' Storage=8,133 cf Inflow=6.50 cfs 0.395 afPond 24P: Northwest Basin Discarded=0.03 cfs 0.093 af Primary=1.89 cfs 0.302 af Outflow=1.92 cfs 0.395 af Peak Elev=915.63' Storage=15,413 cf Inflow=20.02 cfs 1.188 afPond 25P: West - North Discarded=0.04 cfs 0.135 af Primary=10.24 cfs 1.053 af Outflow=10.29 cfs 1.188 af Peak Elev=911.89' Storage=20,384 cf Inflow=10.90 cfs 0.799 afPond 28P: Avienda Pkwy - NW Basin Discarded=0.04 cfs 0.265 af Primary=1.70 cfs 0.534 af Outflow=1.75 cfs 0.799 af Peak Elev=923.13' Storage=1,644 cf Inflow=2.44 cfs 0.168 afPond 31P: West South Basin Discarded=0.00 cfs 0.020 af Primary=1.74 cfs 0.148 af Secondary=0.00 cfs 0.000 af Outflow=1.74 cfs 0.168 af Peak Elev=896.90' Inflow=10.24 cfs 1.053 afPond 32P: Drop MH 18.0" Round Culvert n=0.011 L=90.0' S=0.0056 '/' Outflow=10.24 cfs 1.053 af Peak Elev=921.50' Storage=25,882 cf Inflow=17.97 cfs 1.146 afPond 33P: Wetland 3 Primary=2.46 cfs 1.146 af Secondary=0.00 cfs 0.000 af Outflow=2.46 cfs 1.146 af Peak Elev=908.12' Storage=0.035 af Inflow=4.99 cfs 1.421 afPond 34P: West - South (existing) Outflow=4.18 cfs 1.421 af Peak Elev=895.60' Inflow=1.89 cfs 0.302 afPond 35P: Drop MH 12.0" Round Culvert n=0.011 L=150.0' S=0.0053 '/' Outflow=1.89 cfs 0.302 af MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 351HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Peak Elev=895.28' Inflow=1.70 cfs 0.534 afPond 36P: Drop MH 12.0" Round Culvert n=0.011 L=100.0' S=0.0050 '/' Outflow=1.70 cfs 0.534 af Peak Elev=895.78' Storage=32,356 cf Inflow=18.90 cfs 1.160 afPond 40.1P: South East Discarded=0.07 cfs 0.449 af Primary=1.63 cfs 0.711 af Outflow=1.70 cfs 1.160 af Peak Elev=896.46' Storage=42,281 cf Inflow=22.68 cfs 1.387 afPond 40.2P: South Central Discarded=0.13 cfs 0.847 af Primary=0.96 cfs 0.540 af Outflow=1.09 cfs 1.387 af Peak Elev=899.84' Storage=43,149 cf Inflow=25.10 cfs 1.526 afPond 40.3P: South Discarded=0.17 cfs 0.549 af Primary=1.84 cfs 0.977 af Outflow=2.01 cfs 1.526 af Peak Elev=889.12' Storage=15,575 cf Inflow=8.21 cfs 0.505 afPond 41.1P: South East Discarded=0.06 cfs 0.375 af Primary=0.31 cfs 0.131 af Outflow=0.37 cfs 0.505 af Peak Elev=884.54' Storage=16,913 cf Inflow=17.98 cfs 1.102 afPond 41.2P: South Central Discarded=0.05 cfs 0.147 af Primary=7.54 cfs 0.956 af Outflow=7.59 cfs 1.102 af Peak Elev=890.76' Storage=6,905 cf Inflow=3.62 cfs 0.224 afPond 41.3P: South West Discarded=0.03 cfs 0.176 af Primary=0.14 cfs 0.048 af Outflow=0.17 cfs 0.224 af Peak Elev=884.51' Storage=730 cf Inflow=13.35 cfs 3.031 afPond 44P: Wetland 4 Outflow=13.34 cfs 3.031 af Peak Elev=887.68' Storage=2,243 cf Inflow=7.61 cfs 0.485 afPond 46P: Triangle Basin Discarded=0.01 cfs 0.014 af Primary=5.66 cfs 0.472 af Secondary=0.00 cfs 0.000 af Outflow=5.67 cfs 0.485 af Peak Elev=910.09' Storage=62,149 cf Inflow=33.97 cfs 2.037 afPond 47P: Bluff Creek - West Basin Discarded=0.15 cfs 0.996 af Primary=1.47 cfs 1.041 af Outflow=1.61 cfs 2.037 af Peak Elev=897.22' Storage=29,788 cf Inflow=21.95 cfs 1.062 afPond 48P: Bluff Creek - East Basin Discarded=0.07 cfs 0.456 af Primary=1.44 cfs 0.607 af Outflow=1.51 cfs 1.062 af Peak Elev=897.82' Storage=15,416 cf Inflow=10.25 cfs 0.622 afPond 48P(2): Bluff Creek - East Basin Discarded=0.03 cfs 0.207 af Primary=1.62 cfs 0.415 af Outflow=1.66 cfs 0.622 af Total Runoff Area = 79.129 ac Runoff Volume = 16.727 af Average Runoff Depth = 2.54" 60.33% Pervious = 47.742 ac 39.67% Impervious = 31.387 ac MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 352HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 21S: Direct to 21P Runoff = 19.56 cfs @ 12.14 hrs, Volume= 1.117 af, Depth= 2.56" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Area (sf) CN Description 37,500 98 Paved parking, HSG D 190,734 80 >75% Grass cover, Good, HSG D 228,234 Weighted Average 190,734 80 83.57% Pervious Area 37,500 98 16.43% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 10.0 Direct Entry, Subcatchment 21S: Direct to 21P Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Runoff Area=228,234 sf Runoff Volume=1.117 af Runoff Depth=2.56" Tc=10.0 min CN=WQ 19.56 cfs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 353HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 22oS: From Lyman Runoff = 0.98 cfs @ 12.08 hrs, Volume= 0.042 af, Depth= 2.10" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Area (sf) CN Description 10,548 78 Meadow, non-grazed, HSG D 10,548 78 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 2.1 57 0.3330 0.44 Sheet Flow, Grass: Short n= 0.150 P2= 2.87" 2.9 Direct Entry, Make up to 5 minutes 5.0 57 Total Subcatchment 22oS: From Lyman Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)1 0 MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Runoff Area=10,548 sf Runoff Volume=0.042 af Runoff Depth=2.10" Flow Length=57' Slope=0.3330 '/' Tc=5.0 min CN=78 0.98 cfs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 354HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 22S: Direct to Wetland 6 Runoff = 4.18 cfs @ 12.08 hrs, Volume= 0.181 af, Depth= 2.27" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Area (sf) CN Description 41,671 80 >75% Grass cover, Good, HSG D 41,671 80 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 5.0 Direct Entry, Subcatchment 22S: Direct to Wetland 6 Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)4 3 2 1 0 MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Runoff Area=41,671 sf Runoff Volume=0.181 af Runoff Depth=2.27" Tc=5.0 min CN=80 4.18 cfs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 355HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 24S: Northwest Runoff = 6.50 cfs @ 12.13 hrs, Volume= 0.395 af, Depth= 3.49" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Area (sf) CN Description 18,089 80 >75% Grass cover, Good, HSG D * 41,016 98 Paved parking and roofs, HSG D 59,105 Weighted Average 18,089 80 30.60% Pervious Area 41,016 98 69.40% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 10.0 Direct Entry, Subcatchment 24S: Northwest Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)7 6 5 4 3 2 1 0 MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Runoff Area=59,105 sf Runoff Volume=0.395 af Runoff Depth=3.49" Tc=10.0 min CN=WQ 6.50 cfs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 356HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 25S: West North Runoff = 20.02 cfs @ 12.13 hrs, Volume= 1.188 af, Depth= 3.07" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Area (sf) CN Description 111,088 80 >75% Grass cover, Good, HSG D * 91,498 98 Paved parking, & roofs HSG D 202,586 Weighted Average 111,088 80 54.83% Pervious Area 91,498 98 45.17% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 10.0 Direct Entry, Subcatchment 25S: West North Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Runoff Area=202,586 sf Runoff Volume=1.188 af Runoff Depth=3.07" Tc=10.0 min CN=WQ 20.02 cfs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 357HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 28S: Avienda Pkwy - NW Runoff = 10.90 cfs @ 12.20 hrs, Volume= 0.799 af, Depth= 3.43" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Area (sf) CN Description 41,364 80 >75% Grass cover, Good, HSG D 80,294 98 Paved roads w/curbs & sewers, HSG D 121,658 Weighted Average 41,364 80 34.00% Pervious Area 80,294 98 66.00% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 15.0 Direct Entry, Subcatchment 28S: Avienda Pkwy - NW Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)12 11 10 9 8 7 6 5 4 3 2 1 0 MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Runoff Area=121,658 sf Runoff Volume=0.799 af Runoff Depth=3.43" Tc=15.0 min CN=WQ 10.90 cfs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 358HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 29oS: North Offsite Runoff = 0.18 cfs @ 12.07 hrs, Volume= 0.009 af, Depth= 4.03" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Area (sf) CN Description 1,162 98 Paved parking, HSG D 1,162 98 100.00% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 5.0 Direct Entry, Subcatchment 29oS: North Offsite Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.2 0.19 0.18 0.17 0.16 0.15 0.14 0.13 0.12 0.11 0.1 0.09 0.08 0.07 0.06 0.05 0.04 0.03 0.02 0.01 0 MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Runoff Area=1,162 sf Runoff Volume=0.009 af Runoff Depth=4.03" Tc=5.0 min CN=98 0.18 cfs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 359HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 31S: West Central Runoff = 2.44 cfs @ 12.20 hrs, Volume= 0.168 af, Depth= 2.67" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Area (sf) CN Adj Description 25,339 80 80 >75% Grass cover, Good, HSG D 7,500 98 98 Unconnected roofs, HSG D 32,839 Weighted Average 25,339 80 80 77.16% Pervious Area 7,500 98 98 22.84% Impervious Area 7,500 100.00% Unconnected Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 10.3 100 0.0200 0.16 Sheet Flow, Grass: Short n= 0.150 P2= 2.87" 4.4 260 0.0200 0.99 Shallow Concentrated Flow, Short Grass Pasture Kv= 7.0 fps 14.7 360 Total Subcatchment 31S: West Central Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)2 1 0 MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Runoff Area=32,839 sf Runoff Volume=0.168 af Runoff Depth=2.67" Flow Length=360' Slope=0.0200 '/' Tc=14.7 min UI Adjusted CN=WQ 2.44 cfs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 360HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 33oS: Offsite West - North Runoff = 11.10 cfs @ 12.10 hrs, Volume= 0.573 af, Depth= 2.59" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Area (sf) CN Adj Description 20,000 98 98 Unconnected roofs, HSG D 71,000 80 80 >75% Grass cover, Good, HSG D * 12,720 96 96 Wetland, Good, HSG D 12,145 58 58 Meadow, non-grazed, HSG B 115,865 Weighted Average 95,865 79 79 82.74% Pervious Area 20,000 98 98 17.26% Impervious Area 20,000 100.00% Unconnected Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 5.0 25 0.0200 0.08 Sheet Flow, Grass: Dense n= 0.240 P2= 2.87" 2.3 406 0.0390 2.96 Shallow Concentrated Flow, Grassed Waterway Kv= 15.0 fps 7.3 431 Total Subcatchment 33oS: Offsite West - North Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)12 11 10 9 8 7 6 5 4 3 2 1 0 MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Runoff Area=115,865 sf Runoff Volume=0.573 af Runoff Depth=2.59" Flow Length=431' Tc=7.3 min UI Adjusted CN=WQ 11.10 cfs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 361HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 33S: Direct to Wetland 3 Runoff = 6.77 cfs @ 12.16 hrs, Volume= 0.425 af, Depth= 2.85" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Area (sf) CN Description * 29,365 96 Wetland, Good, HSG D 48,788 80 >75% Grass cover, Good, HSG D 78,153 Weighted Average 78,153 86 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 12.0 Direct Entry, Subcatchment 33S: Direct to Wetland 3 Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)7 6 5 4 3 2 1 0 MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Runoff Area=78,153 sf Runoff Volume=0.425 af Runoff Depth=2.85" Tc=12.0 min CN=WQ 6.77 cfs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 362HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 34dS: Offsite West Direct Runoff = 2.22 cfs @ 12.14 hrs, Volume= 0.128 af, Depth= 2.62" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Area (sf) CN Description 20,380 80 >75% Grass cover, Good, HSG D * 5,090 98 Paved, HSG D 25,470 Weighted Average 20,380 80 80.02% Pervious Area 5,090 98 19.98% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 10.0 Direct Entry, Subcatchment 34dS: Offsite West Direct Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)2 1 0 MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Runoff Area=25,470 sf Runoff Volume=0.128 af Runoff Depth=2.62" Tc=10.0 min CN=WQ 2.22 cfs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 363HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 34oS: Offsite to West South Runoff = 3.29 cfs @ 12.08 hrs, Volume= 0.145 af, Depth= 2.31" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Area (sf) CN Adj Description 20,410 78 78 Meadow, non-grazed, HSG D 2,700 98 98 Unconnected roofs, HSG D 9,600 80 80 >75% Grass cover, Good, HSG D 32,710 Weighted Average 30,010 79 79 91.75% Pervious Area 2,700 98 98 8.25% Impervious Area 2,700 100.00% Unconnected Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 2.0 37 0.1620 0.30 Sheet Flow, Grass: Short n= 0.150 P2= 2.87" 3.0 Direct Entry, Make up to 5 minutes 5.0 37 Total Subcatchment 34oS: Offsite to West South Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)3 2 1 0 MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Runoff Area=32,710 sf Runoff Volume=0.145 af Runoff Depth=2.31" Flow Length=37' Slope=0.1620 '/' Tc=5.0 min UI Adjusted CN=WQ 3.29 cfs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 364HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 34S: West Woods Runoff = 1.48 cfs @ 12.20 hrs, Volume= 0.129 af, Depth= 0.64" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Area (ac) CN Description 2.423 55 Woods, Good, HSG B 2.423 55 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 8.4 50 0.0600 0.10 Sheet Flow, Woods: Light underbrush n= 0.400 P2= 2.87" 2.7 218 0.0710 1.33 Shallow Concentrated Flow, Woodland Kv= 5.0 fps 11.1 268 Total Subcatchment 34S: West Woods Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)1 0 MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Runoff Area=2.423 ac Runoff Volume=0.129 af Runoff Depth=0.64" Flow Length=268' Tc=11.1 min CN=55 1.48 cfs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 365HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 35S: Southwest Runoff = 1.88 cfs @ 12.33 hrs, Volume= 0.203 af, Depth= 0.64" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Area (ac) CN Description 3.790 55 Woods, Good, HSG B 3.790 55 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 16.0 75 0.0270 0.08 Sheet Flow, Woods: Light underbrush n= 0.400 P2= 2.87" 2.3 195 0.0820 1.43 Shallow Concentrated Flow, Woodland Kv= 5.0 fps 18.3 270 Total Subcatchment 35S: Southwest Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)2 1 0 MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Runoff Area=3.790 ac Runoff Volume=0.203 af Runoff Depth=0.64" Flow Length=270' Tc=18.3 min CN=55 1.88 cfs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 366HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 36oS: Southwest Offsite Runoff = 0.26 cfs @ 12.07 hrs, Volume= 0.013 af, Depth= 4.03" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Area (sf) CN Description 1,628 98 Paved parking, HSG D 1,628 98 100.00% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 5.0 Direct Entry, Subcatchment 36oS: Southwest Offsite Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.28 0.26 0.24 0.22 0.2 0.18 0.16 0.14 0.12 0.1 0.08 0.06 0.04 0.02 0 MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Runoff Area=1,628 sf Runoff Volume=0.013 af Runoff Depth=4.03" Tc=5.0 min CN=98 0.26 cfs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 367HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 40.1S: South - East Runoff = 18.90 cfs @ 12.13 hrs, Volume= 1.160 af, Depth= 3.71" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Area (sf) CN Description 29,976 80 >75% Grass cover, Good, HSG D 133,492 98 Paved parking, HSG D 163,468 Weighted Average 29,976 80 18.34% Pervious Area 133,492 98 81.66% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 10.0 Direct Entry, Subcatchment 40.1S: South - East Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Runoff Area=163,468 sf Runoff Volume=1.160 af Runoff Depth=3.71" Tc=10.0 min CN=WQ 18.90 cfs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 368HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 40.2S: South - Central Runoff = 22.68 cfs @ 12.13 hrs, Volume= 1.387 af, Depth= 3.61" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Area (sf) CN Description 47,748 80 >75% Grass cover, Good, HSG D 152,819 98 Paved parking, HSG D 200,567 Weighted Average 47,748 80 23.81% Pervious Area 152,819 98 76.19% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 10.0 Direct Entry, Subcatchment 40.2S: South - Central Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Runoff Area=200,567 sf Runoff Volume=1.387 af Runoff Depth=3.61" Tc=10.0 min CN=WQ 22.68 cfs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 369HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 40.3S: South - West Runoff = 25.10 cfs @ 12.13 hrs, Volume= 1.526 af, Depth= 3.50" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Area (sf) CN Description 69,464 80 >75% Grass cover, Good, HSG D * 158,681 98 Paved parking & roofs, HSG D 228,145 Weighted Average 69,464 80 30.45% Pervious Area 158,681 98 69.55% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 10.0 Direct Entry, Subcatchment 40.3S: South - West Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)28 26 24 22 20 18 16 14 12 10 8 6 4 2 0 MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Runoff Area=228,145 sf Runoff Volume=1.526 af Runoff Depth=3.50" Tc=10.0 min CN=WQ 25.10 cfs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 370HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 41.1S: South - East Runoff = 8.21 cfs @ 12.13 hrs, Volume= 0.505 af, Depth= 3.77" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Area (sf) CN Description 10,289 80 >75% Grass cover, Good, HSG D 59,695 98 Paved parking, HSG D 69,984 Weighted Average 10,289 80 14.70% Pervious Area 59,695 98 85.30% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 10.0 Direct Entry, Subcatchment 41.1S: South - East Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)9 8 7 6 5 4 3 2 1 0 MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Runoff Area=69,984 sf Runoff Volume=0.505 af Runoff Depth=3.77" Tc=10.0 min CN=WQ 8.21 cfs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 371HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 41.2S: South - Central Runoff = 17.98 cfs @ 12.13 hrs, Volume= 1.102 af, Depth= 3.68" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Area (sf) CN Description 31,015 80 >75% Grass cover, Good, HSG D 125,404 98 Paved parking, HSG D 156,419 Weighted Average 31,015 80 19.83% Pervious Area 125,404 98 80.17% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 10.0 Direct Entry, Subcatchment 41.2S: South - Central Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Runoff Area=156,419 sf Runoff Volume=1.102 af Runoff Depth=3.68" Tc=10.0 min CN=WQ 17.98 cfs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 372HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 41.3S: South - west Runoff = 3.62 cfs @ 12.13 hrs, Volume= 0.224 af, Depth= 3.93" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Area (sf) CN Description 1,850 80 >75% Grass cover, Good, HSG D 28,034 98 Paved parking, HSG D 29,884 Weighted Average 1,850 80 6.19% Pervious Area 28,034 98 93.81% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 10.0 Direct Entry, Subcatchment 41.3S: South - west Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)4 3 2 1 0 MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Runoff Area=29,884 sf Runoff Volume=0.224 af Runoff Depth=3.93" Tc=10.0 min CN=WQ 3.62 cfs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 373HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 42.1S: South Runoff = 4.20 cfs @ 12.08 hrs, Volume= 0.182 af, Depth= 2.27" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Area (sf) CN Description 41,871 80 >75% Grass cover, Good, HSG D 41,871 80 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 5.0 Direct Entry, Subcatchment 42.1S: South Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)4 3 2 1 0 MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Runoff Area=41,871 sf Runoff Volume=0.182 af Runoff Depth=2.27" Tc=5.0 min CN=80 4.20 cfs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 374HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 42.2S: Southeast Runoff = 2.46 cfs @ 12.08 hrs, Volume= 0.106 af, Depth= 2.27" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Area (sf) CN Description 24,525 80 >75% Grass cover, Good, HSG D 24,525 80 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 5.0 Direct Entry, Subcatchment 42.2S: Southeast Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)2 1 0 MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Runoff Area=24,525 sf Runoff Volume=0.106 af Runoff Depth=2.27" Tc=5.0 min CN=80 2.46 cfs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 375HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 43.1S: East Woods Runoff = 1.73 cfs @ 12.27 hrs, Volume= 0.172 af, Depth= 0.64" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Area (ac) CN Description 3.222 55 Woods, Good, HSG B 3.222 55 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 11.1 75 0.0670 0.11 Sheet Flow, Woods: Light underbrush n= 0.400 P2= 2.87" 4.1 455 0.1380 1.86 Shallow Concentrated Flow, Woodland Kv= 5.0 fps 15.2 530 Total Subcatchment 43.1S: East Woods Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)1 0 MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Runoff Area=3.222 ac Runoff Volume=0.172 af Runoff Depth=0.64" Flow Length=530' Tc=15.2 min CN=55 1.73 cfs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 376HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 43.2S: Northeast Woods Runoff = 0.90 cfs @ 12.35 hrs, Volume= 0.100 af, Depth= 0.64" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Area (ac) CN Description 1.862 55 Woods, Good, HSG B 1.862 55 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 14.2 100 0.0650 0.12 Sheet Flow, Woods: Light underbrush n= 0.400 P2= 2.87" 5.3 523 0.1080 1.64 Shallow Concentrated Flow, Woodland Kv= 5.0 fps 19.5 623 Total Subcatchment 43.2S: Northeast Woods Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)1 0 MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Runoff Area=1.862 ac Runoff Volume=0.100 af Runoff Depth=0.64" Flow Length=623' Tc=19.5 min CN=55 0.90 cfs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 377HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 44S: North Woods Runoff = 5.26 cfs @ 12.30 hrs, Volume= 0.541 af, Depth= 0.64" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Area (sf) CN Description 441,314 55 Woods, Good, HSG B 441,314 55 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 11.2 75 0.0660 0.11 Sheet Flow, Woods: Light underbrush n= 0.400 P2= 2.87" 5.3 524 0.1090 1.65 Shallow Concentrated Flow, Woodland Kv= 5.0 fps 16.5 599 Total Subcatchment 44S: North Woods Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)5 4 3 2 1 0 MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Runoff Area=441,314 sf Runoff Volume=0.541 af Runoff Depth=0.64" Flow Length=599' Tc=16.5 min CN=55 5.26 cfs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 378HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 45S: Central - West Runoff = 22.68 cfs @ 12.13 hrs, Volume= 1.330 af, Depth= 3.37" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Area (sf) CN Description 159,000 95 Urban commercial, 85% imp, HSG D 47,303 80 >75% Grass cover, Good, HSG D 206,303 Weighted Average 71,153 79 34.49% Pervious Area 135,150 98 65.51% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 10.0 Direct Entry, Subcatchment 45S: Central - West Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Runoff Area=206,303 sf Runoff Volume=1.330 af Runoff Depth=3.37" Tc=10.0 min CN=WQ 22.68 cfs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 379HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 46S: South Townhomes Runoff = 7.61 cfs @ 12.17 hrs, Volume= 0.485 af, Depth= 2.61" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Area (sf) CN Description 19,025 98 Paved parking, HSG D 78,057 80 >75% Grass cover, Good, HSG D 97,082 Weighted Average 78,057 80 80.40% Pervious Area 19,025 98 19.60% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 11.7 92 0.0320 0.13 Sheet Flow, Grass: Dense n= 0.240 P2= 2.87" 0.9 609 0.5200 10.82 Shallow Concentrated Flow, Grassed Waterway Kv= 15.0 fps 12.6 701 Total Subcatchment 46S: South Townhomes Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)8 7 6 5 4 3 2 1 0 MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Runoff Area=97,082 sf Runoff Volume=0.485 af Runoff Depth=2.61" Flow Length=701' Tc=12.6 min CN=WQ 7.61 cfs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 380HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 47S: Bluff Creek Blvd - West Runoff = 14.61 cfs @ 12.07 hrs, Volume= 0.707 af, Depth= 3.70" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Area (ac) CN Description 0.439 80 >75% Grass cover, Good, HSG D 1.856 98 Paved roads w/curbs & sewers, HSG D 2.295 Weighted Average 0.439 80 19.13% Pervious Area 1.856 98 80.87% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 5.0 Direct Entry, Subcatchment 47S: Bluff Creek Blvd - West Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Runoff Area=2.295 ac Runoff Volume=0.707 af Runoff Depth=3.70" Tc=5.0 min CN=WQ 14.61 cfs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 381HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 48.1S: Direct to 48P (2) Runoff = 10.25 cfs @ 12.13 hrs, Volume= 0.622 af, Depth= 3.47" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Area (sf) CN Description 29,956 80 >75% Grass cover, Good, HSG D 63,765 98 Paved parking, HSG D 93,721 Weighted Average 29,956 80 31.96% Pervious Area 63,765 98 68.04% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 10.0 Direct Entry, Subcatchment 48.1S: Direct to 48P (2) Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)11 10 9 8 7 6 5 4 3 2 1 0 MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Runoff Area=93,721 sf Runoff Volume=0.622 af Runoff Depth=3.47" Tc=10.0 min CN=WQ 10.25 cfs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 382HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 48S: Bluff Creek Blvd - East Runoff = 21.95 cfs @ 12.07 hrs, Volume= 1.062 af, Depth= 3.70" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Area (ac) CN Description 0.642 80 >75% Grass cover, Good, HSG D 2.799 98 Paved roads w/curbs & sewers, HSG D 3.441 Weighted Average 0.642 80 18.66% Pervious Area 2.799 98 81.34% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 5.0 Direct Entry, Subcatchment 48S: Bluff Creek Blvd - East Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Runoff Area=3.441 ac Runoff Volume=1.062 af Runoff Depth=3.70" Tc=5.0 min CN=WQ 21.95 cfs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 383HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Reach 20R: Northwest Drainage [40] Hint: Not Described (Outflow=Inflow) Inflow Area = 15.265 ac, 37.82% Impervious, Inflow Depth = 2.26" for 10y 24hr event Inflow = 6.72 cfs @ 13.06 hrs, Volume= 2.876 af Outflow = 6.72 cfs @ 13.06 hrs, Volume= 2.876 af, Atten= 0%, Lag= 0.0 min Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Reach 20R: Northwest Drainage Inflow Outflow Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)7 6 5 4 3 2 1 0 Inflow Area=15.265 ac 6.72 cfs 6.72 cfs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 384HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Reach 21R: Lower Wetland 6 Inflow Area = 15.265 ac, 37.82% Impervious, Inflow Depth = 2.26" for 10y 24hr event Inflow = 6.78 cfs @ 12.09 hrs, Volume= 2.876 af Outflow = 6.72 cfs @ 13.06 hrs, Volume= 2.876 af, Atten= 1%, Lag= 57.6 min Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Max. Velocity= 0.82 fps, Min. Travel Time= 3.8 min Avg. Velocity = 0.38 fps, Avg. Travel Time= 8.2 min Peak Storage= 1,526 cf @ 13.06 hrs Average Depth at Peak Storage= 0.46' Bank-Full Depth= 5.99' Flow Area= 570.1 sf, Capacity= 3,072.14 cfs Custom cross-section, Length= 187.0' Slope= 0.0053 '/' (102 Elevation Intervals) Constant n= 0.050 Scattered brush, heavy weeds Inlet Invert= 885.00', Outlet Invert= 884.00' ‡ Offset Elevation Chan.Depth (feet) (feet) (feet) 0.00 890.40 0.00 43.10 886.55 3.85 85.60 884.41 5.99 126.20 885.14 5.26 145.10 890.40 0.00 Depth End Area Perim. Storage Discharge (feet) (sq-ft) (feet) (cubic-feet) (cfs) 0.00 0.0 0.0 0 0.00 0.73 20.1 55.1 3,761 22.32 2.14 121.1 88.4 22,648 324.64 5.99 570.1 146.1 106,618 3,072.14 MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 385HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Reach 21R: Lower Wetland 6 Inflow Outflow Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)7 6 5 4 3 2 1 0 Inflow Area=15.265 ac Avg. Flow Depth=0.46' Max Vel=0.82 fps n=0.050 L=187.0' S=0.0053 '/' Capacity=3,072.14 cfs 6.78 cfs 6.72 cfs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 386HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Reach 30R: SW Drainage [40] Hint: Not Described (Outflow=Inflow) Inflow Area = 12.794 ac, 6.62% Impervious, Inflow Depth = 1.65" for 10y 24hr event Inflow = 7.26 cfs @ 12.26 hrs, Volume= 1.763 af Outflow = 7.26 cfs @ 12.26 hrs, Volume= 1.763 af, Atten= 0%, Lag= 0.0 min Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Reach 30R: SW Drainage Inflow Outflow Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)8 7 6 5 4 3 2 1 0 Inflow Area=12.794 ac 7.26 cfs 7.26 cfs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 387HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Reach 35R: Direct Runoff [40] Hint: Not Described (Outflow=Inflow) Inflow Area = 4.375 ac, 2.67% Impervious, Inflow Depth = 0.91" for 10y 24hr event Inflow = 3.11 cfs @ 12.20 hrs, Volume= 0.330 af Outflow = 3.11 cfs @ 12.20 hrs, Volume= 0.330 af, Atten= 0%, Lag= 0.0 min Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Reach 35R: Direct Runoff Inflow Outflow Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)3 2 1 0 Inflow Area=4.375 ac 3.11 cfs 3.11 cfs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 388HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Reach 40R: South Drainage [40] Hint: Not Described (Outflow=Inflow) Inflow Area = 51.070 ac, 48.50% Impervious, Inflow Depth = 1.64" for 10y 24hr event Inflow = 29.76 cfs @ 12.30 hrs, Volume= 6.997 af Outflow = 29.76 cfs @ 12.30 hrs, Volume= 6.997 af, Atten= 0%, Lag= 0.0 min Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Reach 40R: South Drainage Inflow Outflow Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)32 30 28 26 24 22 20 18 16 14 12 10 8 6 4 2 0 Inflow Area=51.070 ac 29.76 cfs 29.76 cfs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 389HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Reach 42.1R: South [40] Hint: Not Described (Outflow=Inflow) Inflow Area = 9.843 ac, 71.43% Impervious, Inflow Depth = 2.10" for 10y 24hr event Inflow = 9.40 cfs @ 12.10 hrs, Volume= 1.725 af Outflow = 9.40 cfs @ 12.10 hrs, Volume= 1.725 af, Atten= 0%, Lag= 0.0 min Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Reach 42.1R: South Inflow Outflow Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)10 9 8 7 6 5 4 3 2 1 0 Inflow Area=9.843 ac 9.40 cfs 9.40 cfs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 390HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Reach 42.2R: Southeast [40] Hint: Not Described (Outflow=Inflow) Inflow Area = 11.515 ac, 75.54% Impervious, Inflow Depth = 2.05" for 10y 24hr event Inflow = 5.10 cfs @ 12.54 hrs, Volume= 1.970 af Outflow = 5.10 cfs @ 12.54 hrs, Volume= 1.970 af, Atten= 0%, Lag= 0.0 min Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Reach 42.2R: Southeast Inflow Outflow Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)5 4 3 2 1 0 Inflow Area=11.515 ac 5.10 cfs 5.10 cfs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 391HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Reach 44R: Wetland 4 Channel [40] Hint: Not Described (Outflow=Inflow) Inflow Area = 26.490 ac, 34.12% Impervious, Inflow Depth = 1.42" for 10y 24hr event Inflow = 14.22 cfs @ 12.31 hrs, Volume= 3.130 af Outflow = 14.22 cfs @ 12.31 hrs, Volume= 3.130 af, Atten= 0%, Lag= 0.0 min Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Reach 44R: Wetland 4 Channel Inflow Outflow Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 Inflow Area=26.490 ac 14.22 cfs 14.22 cfs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 392HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Reach 48R: Development to Wetland 4 [40] Hint: Not Described (Outflow=Inflow) Inflow Area = 14.497 ac, 62.34% Impervious, Inflow Depth = 2.06" for 10y 24hr event Inflow = 8.10 cfs @ 12.31 hrs, Volume= 2.490 af Outflow = 8.10 cfs @ 12.31 hrs, Volume= 2.490 af, Atten= 0%, Lag= 0.0 min Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Reach 48R: Development to Wetland 4 Inflow Outflow Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)9 8 7 6 5 4 3 2 1 0 Inflow Area=14.497 ac 8.10 cfs 8.10 cfs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 393HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Reach 50R: Bluff Creek Drainage [40] Hint: Not Described (Outflow=Inflow) Inflow Area = 79.129 ac, 39.67% Impervious, Inflow Depth = 1.76" for 10y 24hr event Inflow = 43.36 cfs @ 12.30 hrs, Volume= 11.636 af Outflow = 43.36 cfs @ 12.30 hrs, Volume= 11.636 af, Atten= 0%, Lag= 0.0 min Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Reach 50R: Bluff Creek Drainage Inflow Outflow Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)48 46 44 42 40 38 36 34 32 30 28 26 24 22 20 18 16 14 12 10 8 6 4 2 0 Inflow Area=79.129 ac 43.36 cfs 43.36 cfs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 394HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Pond 21P: North Basin Inflow Area = 14.040 ac, 40.93% Impervious, Inflow Depth = 2.57" for 10y 24hr event Inflow = 29.98 cfs @ 12.15 hrs, Volume= 3.005 af Outflow = 6.50 cfs @ 13.26 hrs, Volume= 3.005 af, Atten= 78%, Lag= 66.8 min Discarded = 0.16 cfs @ 13.26 hrs, Volume= 0.362 af Primary = 6.34 cfs @ 13.26 hrs, Volume= 2.644 af Secondary = 0.00 cfs @ 0.00 hrs, Volume= 0.000 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 893.18' @ 13.26 hrs Surf.Area= 113,489 sf Storage= 57,585 cf Plug-Flow detention time= 293.7 min calculated for 3.005 af (100% of inflow) Center-of-Mass det. time= 293.8 min ( 1,113.3 - 819.4 ) Volume Invert Avail.Storage Storage Description #1 889.70' 25,434 cf Sand Section (Prismatic) Listed below (Recalc) 85,376 cf Overall - 594 cf Embedded = 84,782 cf x 30.0% Voids #2 892.00' 5,568 cf Topsoil (Prismatic) Listed below (Recalc) 18,560 cf Overall x 30.0% Voids #3 892.50' 150,182 cf Open Pond (Prismatic) Listed below (Recalc) #4 889.70' 594 cf 8.0" Round Pipe Storage Inside #1 L= 1,703.0' 181,778 cf Total Available Storage Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 889.70 37,120 0 0 892.00 37,120 85,376 85,376 Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 892.00 37,120 0 0 892.50 37,120 18,560 18,560 Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 892.50 37,120 0 0 893.00 38,678 18,950 18,950 894.00 41,838 40,258 59,208 895.00 45,055 43,447 102,654 896.00 50,000 47,528 150,182 Device Routing Invert Outlet Devices #1 Primary 889.70'18.0" Round Culvert L= 45.0' RCP, sq.cut end projecting, Ke= 0.500 Inlet / Outlet Invert= 889.70' / 889.38' S= 0.0071 '/' Cc= 0.900 n= 0.011 Concrete pipe, straight & clean, Flow Area= 1.77 sf #2 Device 1 890.50'12.0" Vert. Orifice/Grate C= 0.600 #3 Device 1 892.74'12.0" Vert. Orifice/Grate C= 0.600 #4 Discarded 889.70'0.060 in/hr Exfiltration over Surface area Phase-In= 0.01' MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 395HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC #5 Secondary 894.00'20.0' long x 5.0' breadth Broad-Crested Rectangular Weir Head (feet) 0.20 0.40 0.60 0.80 1.00 1.20 1.40 1.60 1.80 2.00 2.50 3.00 3.50 4.00 4.50 5.00 5.50 Coef. (English) 2.34 2.50 2.70 2.68 2.68 2.66 2.65 2.65 2.65 2.65 2.67 2.66 2.68 2.70 2.74 2.79 2.88 Discarded OutFlow Max=0.16 cfs @ 13.26 hrs HW=893.18' (Free Discharge) 4=Exfiltration (Exfiltration Controls 0.16 cfs) Primary OutFlow Max=6.34 cfs @ 13.26 hrs HW=893.18' TW=885.46' (Dynamic Tailwater) 1=Culvert (Passes 6.34 cfs of 14.06 cfs potential flow) 2=Orifice/Grate (Orifice Controls 5.58 cfs @ 7.11 fps) 3=Orifice/Grate (Orifice Controls 0.75 cfs @ 2.26 fps) Secondary OutFlow Max=0.00 cfs @ 0.00 hrs HW=889.70' TW=885.00' (Dynamic Tailwater) 5=Broad-Crested Rectangular Weir ( Controls 0.00 cfs) Pond 21P: North Basin Inflow Outflow Discarded Primary Secondary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)32 30 28 26 24 22 20 18 16 14 12 10 8 6 4 2 0 Inflow Area=14.040 ac Peak Elev=893.18' Storage=57,585 cf 29.98 cfs 6.50 cfs 0.16 cfs 6.34 cfs 0.00 cfs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 396HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Pond 24P: Northwest Basin Inflow Area = 1.357 ac, 69.40% Impervious, Inflow Depth = 3.49" for 10y 24hr event Inflow = 6.50 cfs @ 12.13 hrs, Volume= 0.395 af Outflow = 1.92 cfs @ 12.41 hrs, Volume= 0.395 af, Atten= 71%, Lag= 16.6 min Discarded = 0.03 cfs @ 12.27 hrs, Volume= 0.093 af Primary = 1.89 cfs @ 12.41 hrs, Volume= 0.302 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 915.19' @ 12.41 hrs Surf.Area= 22,000 sf Storage= 8,133 cf Plug-Flow detention time= 449.5 min calculated for 0.395 af (100% of inflow) Center-of-Mass det. time= 449.5 min ( 1,209.9 - 760.3 ) Volume Invert Avail.Storage Storage Description #1 912.80' 7,537 cf Custom Stage Data (Prismatic) Listed below (Recalc) 25,300 cf Overall - 176 cf Embedded = 25,124 cf x 30.0% Voids #2 915.10' 8,729 cf Custom Stage Data (Prismatic) Listed below (Recalc) 22,000 cf Overall - 176 cf Embedded = 21,824 cf x 40.0% Voids #3 912.80' 176 cf 8.0" Round Pipe Storage Inside #1 L= 505.0' #4 915.10' 176 cf 8.0" Round Pipe Storage Inside #2 L= 505.0' 16,619 cf Total Available Storage Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 912.80 11,000 0 0 915.10 11,000 25,300 25,300 Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 915.10 11,000 0 0 917.10 11,000 22,000 22,000 Device Routing Invert Outlet Devices #1 Primary 912.80'12.0" Round Culvert L= 100.0' RCP, sq.cut end projecting, Ke= 0.500 Inlet / Outlet Invert= 912.80' / 912.10' S= 0.0070 '/' Cc= 0.900 n= 0.011 Concrete pipe, straight & clean, Flow Area= 0.79 sf #2 Device 1 913.60'8.0" Vert. Orifice/Grate C= 0.600 #3 Device 1 915.77'8.0" Vert. Orifice/Grate C= 0.600 #4 Discarded 912.80'0.060 in/hr Exfiltration over Surface area Phase-In= 0.01' Discarded OutFlow Max=0.03 cfs @ 12.27 hrs HW=915.11' (Free Discharge) 4=Exfiltration (Exfiltration Controls 0.03 cfs) Primary OutFlow Max=1.89 cfs @ 12.41 hrs HW=915.19' TW=895.60' (Dynamic Tailwater) 1=Culvert (Passes 1.89 cfs of 4.71 cfs potential flow) 2=Orifice/Grate (Orifice Controls 1.89 cfs @ 5.40 fps) 3=Orifice/Grate ( Controls 0.00 cfs) MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 397HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Pond 24P: Northwest Basin Inflow Outflow Discarded Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)7 6 5 4 3 2 1 0 Inflow Area=1.357 ac Peak Elev=915.19' Storage=8,133 cf 6.50 cfs 1.92 cfs 0.03 cfs 1.89 cfs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 398HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Pond 25P: West - North Inflow Area = 4.651 ac, 45.17% Impervious, Inflow Depth = 3.07" for 10y 24hr event Inflow = 20.02 cfs @ 12.13 hrs, Volume= 1.188 af Outflow = 10.29 cfs @ 12.29 hrs, Volume= 1.188 af, Atten= 49%, Lag= 9.3 min Discarded = 0.04 cfs @ 12.10 hrs, Volume= 0.135 af Primary = 10.24 cfs @ 12.29 hrs, Volume= 1.053 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 915.63' @ 12.29 hrs Surf.Area= 31,120 sf Storage= 15,413 cf Plug-Flow detention time= 225.7 min calculated for 1.188 af (100% of inflow) Center-of-Mass det. time= 225.8 min ( 996.8 - 771.0 ) Volume Invert Avail.Storage Storage Description #1 912.63' 10,662 cf Custom Stage Data (Prismatic) Listed below (Recalc) 35,788 cf Overall - 249 cf Embedded = 35,539 cf x 30.0% Voids #2 914.93' 12,348 cf Custom Stage Data (Prismatic) Listed below (Recalc) 31,120 cf Overall - 249 cf Embedded = 30,871 cf x 40.0% Voids #3 916.93' 9,772 cf Custom Stage Data (Prismatic) Listed below (Recalc) 24,429 cf Overall x 40.0% Voids #4 912.63' 249 cf 8.0" Round Pipe Storage Inside #1 L= 714.0' #5 914.93' 249 cf 8.0" Round Pipe Storage Inside #2 L= 714.0' 33,280 cf Total Available Storage Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 912.63 15,560 0 0 914.93 15,560 35,788 35,788 Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 914.93 15,560 0 0 916.93 15,560 31,120 31,120 Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 916.93 15,560 0 0 918.50 15,560 24,429 24,429 Device Routing Invert Outlet Devices #1 Primary 912.63'18.0" Round Culvert L= 153.0' RCP, sq.cut end projecting, Ke= 0.500 Inlet / Outlet Invert= 912.63' / 911.10' S= 0.0100 '/' Cc= 0.900 n= 0.011 Concrete pipe, straight & clean, Flow Area= 1.77 sf #2 Device 1 913.43'18.0" Vert. Orifice/Grate C= 0.600 #3 Device 1 915.67'18.0" Vert. Orifice/Grate C= 0.600 #4 Discarded 912.63'0.060 in/hr Exfiltration over Surface area Phase-In= 0.01' MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 399HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Discarded OutFlow Max=0.04 cfs @ 12.10 hrs HW=914.94' (Free Discharge) 4=Exfiltration (Exfiltration Controls 0.04 cfs) Primary OutFlow Max=10.24 cfs @ 12.29 hrs HW=915.63' TW=896.90' (Dynamic Tailwater) 1=Culvert (Passes 10.24 cfs of 12.76 cfs potential flow) 2=Orifice/Grate (Orifice Controls 10.24 cfs @ 5.80 fps) 3=Orifice/Grate ( Controls 0.00 cfs) Pond 25P: West - North Inflow Outflow Discarded Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 Inflow Area=4.651 ac Peak Elev=915.63' Storage=15,413 cf 20.02 cfs 10.29 cfs 0.04 cfs 10.24 cfs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 400HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Pond 28P: Avienda Pkwy - NW Basin Inflow Area = 2.793 ac, 66.00% Impervious, Inflow Depth = 3.43" for 10y 24hr event Inflow = 10.90 cfs @ 12.20 hrs, Volume= 0.799 af Outflow = 1.75 cfs @ 12.79 hrs, Volume= 0.799 af, Atten= 84%, Lag= 35.8 min Discarded = 0.04 cfs @ 6.46 hrs, Volume= 0.265 af Primary = 1.70 cfs @ 12.79 hrs, Volume= 0.534 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 911.89' @ 12.79 hrs Surf.Area= 30,906 sf Storage= 20,384 cf Plug-Flow detention time= 675.4 min calculated for 0.799 af (100% of inflow) Center-of-Mass det. time= 675.5 min ( 1,441.8 - 766.3 ) Volume Invert Avail.Storage Storage Description #1 909.73' 21,177 cf Custom Stage Data (Prismatic) Listed below (Recalc) 71,084 cf Overall - 495 cf Embedded = 70,589 cf x 30.0% Voids #2 912.03' 24,527 cf Custom Stage Data (Prismatic) Listed below (Recalc) 61,812 cf Overall - 495 cf Embedded = 61,317 cf x 40.0% Voids #3 909.73' 495 cf 8.0" Round Pipe Storage Inside #1 L= 1,418.0' #4 912.03' 495 cf 8.0" Round Pipe Storage Inside #2 L= 1,418.0' 46,693 cf Total Available Storage Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 909.73 30,906 0 0 912.03 30,906 71,084 71,084 Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 912.03 30,906 0 0 914.03 30,906 61,812 61,812 Device Routing Invert Outlet Devices #1 Primary 909.73'12.0" Round Culvert L= 148.0' RCP, sq.cut end projecting, Ke= 0.500 Inlet / Outlet Invert= 909.73' / 908.25' S= 0.0100 '/' Cc= 0.900 n= 0.011 Concrete pipe, straight & clean, Flow Area= 0.79 sf #2 Device 1 910.53'8.0" Vert. Orifice/Grate C= 0.600 #3 Device 1 912.77'8.0" Vert. Orifice/Grate C= 0.600 #4 Discarded 909.73'0.060 in/hr Exfiltration over Surface area Phase-In= 0.01' Discarded OutFlow Max=0.04 cfs @ 6.46 hrs HW=909.74' (Free Discharge) 4=Exfiltration (Exfiltration Controls 0.04 cfs) Primary OutFlow Max=1.70 cfs @ 12.79 hrs HW=911.89' TW=895.28' (Dynamic Tailwater) 1=Culvert (Passes 1.70 cfs of 4.66 cfs potential flow) 2=Orifice/Grate (Orifice Controls 1.70 cfs @ 4.88 fps) 3=Orifice/Grate ( Controls 0.00 cfs) MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 401HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Pond 28P: Avienda Pkwy - NW Basin Inflow Outflow Discarded Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)12 11 10 9 8 7 6 5 4 3 2 1 0 Inflow Area=2.793 ac Peak Elev=911.89' Storage=20,384 cf 10.90 cfs 1.75 cfs 0.04 cfs 1.70 cfs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 402HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Pond 31P: West South Basin Inflow Area = 0.754 ac, 22.84% Impervious, Inflow Depth = 2.67" for 10y 24hr event Inflow = 2.44 cfs @ 12.20 hrs, Volume= 0.168 af Outflow = 1.74 cfs @ 12.32 hrs, Volume= 0.168 af, Atten= 28%, Lag= 7.6 min Discarded = 0.00 cfs @ 6.36 hrs, Volume= 0.020 af Primary = 1.74 cfs @ 12.32 hrs, Volume= 0.148 af Secondary = 0.00 cfs @ 0.00 hrs, Volume= 0.000 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 923.13' @ 12.32 hrs Surf.Area= 2,441 sf Storage= 1,644 cf Plug-Flow detention time= 220.4 min calculated for 0.168 af (100% of inflow) Center-of-Mass det. time= 220.5 min ( 1,008.7 - 788.2 ) Volume Invert Avail.Storage Storage Description #1 920.93' 1,671 cf Sand Setion (Prismatic) Listed below (Recalc) 5,614 cf Overall - 44 cf Embedded = 5,571 cf x 30.0% Voids #2 923.23' 366 cf Topsoil (Prismatic) Listed below (Recalc) 1,221 cf Overall x 30.0% Voids #3 923.73' 11,497 cf Open pond (Prismatic) Listed below (Recalc) #4 920.93' 44 cf 8.0" Round Pipe Storage Inside #1 L= 125.0' 13,578 cf Total Available Storage Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 920.93 2,441 0 0 923.23 2,441 5,614 5,614 Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 923.23 2,441 0 0 923.73 2,441 1,221 1,221 Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 923.73 2,441 0 0 926.60 4,878 10,503 10,503 926.70 15,000 994 11,497 Device Routing Invert Outlet Devices #1 Primary 920.93'12.0" Round Culvert L= 46.0' RCP, sq.cut end projecting, Ke= 0.500 Inlet / Outlet Invert= 920.93' / 920.80' S= 0.0028 '/' Cc= 0.900 n= 0.011 Concrete pipe, straight & clean, Flow Area= 0.79 sf #2 Device 1 921.73'8.0" Vert. Orifice/Grate C= 0.600 #3 Device 1 923.84'8.0" Vert. Orifice/Grate C= 0.600 #4 Secondary 925.60'20.0' long x 5.0' breadth Broad-Crested Rectangular Weir Head (feet) 0.20 0.40 0.60 0.80 1.00 1.20 1.40 1.60 1.80 2.00 2.50 3.00 3.50 4.00 4.50 5.00 5.50 MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 403HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Coef. (English) 2.34 2.50 2.70 2.68 2.68 2.66 2.65 2.65 2.65 2.65 2.67 2.66 2.68 2.70 2.74 2.79 2.88 #5 Discarded 920.93'0.060 in/hr Exfiltration over Horizontal area Phase-In= 0.01' Discarded OutFlow Max=0.00 cfs @ 6.36 hrs HW=920.94' (Free Discharge) 5=Exfiltration (Exfiltration Controls 0.00 cfs) Primary OutFlow Max=1.74 cfs @ 12.32 hrs HW=923.13' TW=921.40' (Dynamic Tailwater) 1=Culvert (Passes 1.74 cfs of 4.57 cfs potential flow) 2=Orifice/Grate (Orifice Controls 1.74 cfs @ 4.98 fps) 3=Orifice/Grate ( Controls 0.00 cfs) Secondary OutFlow Max=0.00 cfs @ 0.00 hrs HW=920.93' TW=920.58' (Dynamic Tailwater) 4=Broad-Crested Rectangular Weir ( Controls 0.00 cfs) Pond 31P: West South Basin Inflow Outflow Discarded Primary Secondary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)2 1 0 Inflow Area=0.754 ac Peak Elev=923.13' Storage=1,644 cf 2.44 cfs 1.74 cfs 0.00 cfs 1.74 cfs 0.00 cfs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 404HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Pond 32P: Drop MH [57] Hint: Peaked at 896.90' (Flood elevation advised) Inflow Area = 4.651 ac, 45.17% Impervious, Inflow Depth = 2.72" for 10y 24hr event Inflow = 10.24 cfs @ 12.29 hrs, Volume= 1.053 af Outflow = 10.24 cfs @ 12.29 hrs, Volume= 1.053 af, Atten= 0%, Lag= 0.0 min Primary = 10.24 cfs @ 12.29 hrs, Volume= 1.053 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 896.90' @ 12.29 hrs Device Routing Invert Outlet Devices #1 Primary 894.50'18.0" Round Culvert L= 90.0' RCP, sq.cut end projecting, Ke= 0.500 Inlet / Outlet Invert= 894.50' / 894.00' S= 0.0056 '/' Cc= 0.900 n= 0.011 Concrete pipe, straight & clean, Flow Area= 1.77 sf Primary OutFlow Max=10.24 cfs @ 12.29 hrs HW=896.90' TW=892.56' (Dynamic Tailwater) 1=Culvert (Barrel Controls 10.24 cfs @ 5.80 fps) Pond 32P: Drop MH Inflow Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)11 10 9 8 7 6 5 4 3 2 1 0 Inflow Area=4.651 ac Peak Elev=896.90' 18.0" Round Culvert n=0.011 L=90.0' S=0.0056 '/' 10.24 cfs 10.24 cfs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 405HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Pond 33P: Wetland 3 Inflow Area = 5.208 ac, 12.12% Impervious, Inflow Depth = 2.64" for 10y 24hr event Inflow = 17.97 cfs @ 12.12 hrs, Volume= 1.146 af Outflow = 2.46 cfs @ 12.89 hrs, Volume= 1.146 af, Atten= 86%, Lag= 46.5 min Primary = 2.46 cfs @ 12.89 hrs, Volume= 1.146 af Secondary = 0.00 cfs @ 0.00 hrs, Volume= 0.000 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 921.50' @ 12.89 hrs Surf.Area= 48,933 sf Storage= 25,882 cf Plug-Flow detention time= 160.9 min calculated for 1.146 af (100% of inflow) Center-of-Mass det. time= 162.2 min ( 947.6 - 785.3 ) Volume Invert Avail.Storage Storage Description #1 920.58' 140,121 cf Custom Stage Data (Prismatic) Listed below (Recalc) Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 920.58 100 0 0 921.00 30,000 6,321 6,321 922.00 68,200 49,100 55,421 923.00 101,200 84,700 140,121 Device Routing Invert Outlet Devices #1 Primary 920.58'12.0" Round Culvert L= 455.0' RCP, end-section conforming to fill, Ke= 0.500 Inlet / Outlet Invert= 920.58' / 911.02' S= 0.0210 '/' Cc= 0.900 n= 0.013 Concrete pipe, straight & clean, Flow Area= 0.79 sf #2 Secondary 921.90'Asymmetrical Weir, C= 3.27 Offset (feet) 0.00 19.00 40.00 50.00 76.00 103.00 Height (feet) 1.50 0.50 0.00 0.00 0.50 1.50 Primary OutFlow Max=2.46 cfs @ 12.89 hrs HW=921.50' TW=907.94' (Dynamic Tailwater) 1=Culvert (Inlet Controls 2.46 cfs @ 3.26 fps) Secondary OutFlow Max=0.00 cfs @ 0.00 hrs HW=920.58' TW=0.00' (Dynamic Tailwater) 2=Asymmetrical Weir ( Controls 0.00 cfs) MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 406HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Pond 33P: Wetland 3 Inflow Outflow Primary Secondary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 Inflow Area=5.208 ac Peak Elev=921.50' Storage=25,882 cf 17.97 cfs 2.46 cfs 2.46 cfs 0.00 cfs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 407HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Pond 34P: West - South (existing) Inflow Area = 8.382 ac, 8.27% Impervious, Inflow Depth = 2.03" for 10y 24hr event Inflow = 4.99 cfs @ 12.10 hrs, Volume= 1.421 af Outflow = 4.18 cfs @ 12.32 hrs, Volume= 1.421 af, Atten= 16%, Lag= 13.3 min Primary = 4.18 cfs @ 12.32 hrs, Volume= 1.421 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 908.12' @ 12.32 hrs Surf.Area= 0.073 ac Storage= 0.035 af Plug-Flow detention time= (not calculated: outflow precedes inflow) Center-of-Mass det. time= 5.1 min ( 928.7 - 923.6 ) Volume Invert Avail.Storage Storage Description #1 907.00' 1.603 af Custom Stage Data (Prismatic) Listed below (Recalc) Elevation Surf.Area Inc.Store Cum.Store (feet) (acres) (acre-feet) (acre-feet) 907.00 0.000 0.000 0.000 908.00 0.055 0.028 0.028 909.00 0.208 0.131 0.159 910.00 0.413 0.310 0.469 911.00 0.573 0.493 0.962 912.00 0.709 0.641 1.603 Device Routing Invert Outlet Devices #1 Primary 907.00'15.0" Round Culvert L= 48.8' RCP, end-section conforming to fill, Ke= 0.500 Inlet / Outlet Invert= 907.00' / 906.00' S= 0.0205 '/' Cc= 0.900 n= 0.013 Concrete pipe, straight & clean, Flow Area= 1.23 sf #2 Primary 911.22'Asymmetrical Weir, C= 3.27 Offset (feet) 0.00 12.00 18.00 28.00 49.00 88.00 Height (feet) 1.35 0.02 0.00 0.15 0.70 1.35 Primary OutFlow Max=4.18 cfs @ 12.32 hrs HW=908.12' TW=0.00' (Dynamic Tailwater) 1=Culvert (Inlet Controls 4.18 cfs @ 3.60 fps) 2=Asymmetrical Weir ( Controls 0.00 cfs) MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 408HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Pond 34P: West - South (existing) Inflow Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)5 4 3 2 1 0 Inflow Area=8.382 ac Peak Elev=908.12' Storage=0.035 af 4.99 cfs 4.18 cfs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 409HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Pond 35P: Drop MH [57] Hint: Peaked at 895.60' (Flood elevation advised) Inflow Area = 1.357 ac, 69.40% Impervious, Inflow Depth = 2.67" for 10y 24hr event Inflow = 1.89 cfs @ 12.41 hrs, Volume= 0.302 af Outflow = 1.89 cfs @ 12.41 hrs, Volume= 0.302 af, Atten= 0%, Lag= 0.0 min Primary = 1.89 cfs @ 12.41 hrs, Volume= 0.302 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 895.60' @ 12.41 hrs Device Routing Invert Outlet Devices #1 Primary 894.80'12.0" Round Culvert L= 150.0' RCP, sq.cut end projecting, Ke= 0.500 Inlet / Outlet Invert= 894.80' / 894.00' S= 0.0053 '/' Cc= 0.900 n= 0.011 Concrete pipe, straight & clean, Flow Area= 0.79 sf Primary OutFlow Max=1.89 cfs @ 12.41 hrs HW=895.60' TW=892.75' (Dynamic Tailwater) 1=Culvert (Barrel Controls 1.89 cfs @ 3.82 fps) Pond 35P: Drop MH Inflow Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)2 1 0 Inflow Area=1.357 ac Peak Elev=895.60' 12.0" Round Culvert n=0.011 L=150.0' S=0.0053 '/' 1.89 cfs 1.89 cfs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 410HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Pond 36P: Drop MH [57] Hint: Peaked at 895.28' (Flood elevation advised) Inflow Area = 2.793 ac, 66.00% Impervious, Inflow Depth = 2.29" for 10y 24hr event Inflow = 1.70 cfs @ 12.79 hrs, Volume= 0.534 af Outflow = 1.70 cfs @ 12.79 hrs, Volume= 0.534 af, Atten= 0%, Lag= 0.0 min Primary = 1.70 cfs @ 12.79 hrs, Volume= 0.534 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 895.28' @ 12.79 hrs Device Routing Invert Outlet Devices #1 Primary 894.50'12.0" Round Culvert L= 100.0' RCP, sq.cut end projecting, Ke= 0.500 Inlet / Outlet Invert= 894.50' / 894.00' S= 0.0050 '/' Cc= 0.900 n= 0.011 Concrete pipe, straight & clean, Flow Area= 0.79 sf Primary OutFlow Max=1.70 cfs @ 12.79 hrs HW=895.28' TW=893.09' (Dynamic Tailwater) 1=Culvert (Barrel Controls 1.70 cfs @ 3.58 fps) Pond 36P: Drop MH Inflow Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)1 0 Inflow Area=2.793 ac Peak Elev=895.28' 12.0" Round Culvert n=0.011 L=100.0' S=0.0050 '/' 1.70 cfs 1.70 cfs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 411HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Pond 40.1P: South East Inflow Area = 3.753 ac, 81.66% Impervious, Inflow Depth = 3.71" for 10y 24hr event Inflow = 18.90 cfs @ 12.13 hrs, Volume= 1.160 af Outflow = 1.70 cfs @ 13.11 hrs, Volume= 1.160 af, Atten= 91%, Lag= 58.7 min Discarded = 0.07 cfs @ 6.38 hrs, Volume= 0.449 af Primary = 1.63 cfs @ 13.11 hrs, Volume= 0.711 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 895.78' @ 13.11 hrs Surf.Area= 51,048 sf Storage= 32,356 cf Plug-Flow detention time= 826.0 min calculated for 1.160 af (100% of inflow) Center-of-Mass det. time= 826.0 min ( 1,581.9 - 755.9 ) Volume Invert Avail.Storage Storage Description #1 893.70' 34,978 cf Custom Stage Data (Prismatic) Listed below (Recalc) 117,410 cf Overall - 818 cf Embedded = 116,593 cf x 30.0% Voids #2 896.00' 40,511 cf Custom Stage Data (Prismatic) Listed below (Recalc) 102,096 cf Overall - 818 cf Embedded = 101,278 cf x 40.0% Voids #3 893.70' 818 cf 8.0" Round Pipe Storage Inside #1 L= 2,343.0' #4 896.00' 818 cf 8.0" Round Pipe Storage Inside #2 L= 2,343.0' 77,125 cf Total Available Storage Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 893.70 51,048 0 0 896.00 51,048 117,410 117,410 Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 896.00 51,048 0 0 898.00 51,048 102,096 102,096 Device Routing Invert Outlet Devices #1 Primary 893.70'12.0" Round Culvert L= 260.0' RCP, sq.cut end projecting, Ke= 0.500 Inlet / Outlet Invert= 893.70' / 891.88' S= 0.0070 '/' Cc= 0.900 n= 0.011 Concrete pipe, straight & clean, Flow Area= 0.79 sf #2 Device 1 894.50'8.0" Vert. Orifice/Grate C= 0.600 #3 Device 1 896.67'12.0" Vert. Orifice/Grate C= 0.600 #4 Discarded 893.70'0.060 in/hr Exfiltration over Surface area Phase-In= 0.01' Discarded OutFlow Max=0.07 cfs @ 6.38 hrs HW=893.71' (Free Discharge) 4=Exfiltration (Exfiltration Controls 0.07 cfs) Primary OutFlow Max=1.63 cfs @ 13.11 hrs HW=895.78' TW=0.00' (Dynamic Tailwater) 1=Culvert (Passes 1.63 cfs of 3.96 cfs potential flow) 2=Orifice/Grate (Orifice Controls 1.63 cfs @ 4.67 fps) 3=Orifice/Grate ( Controls 0.00 cfs) MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 412HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Pond 40.1P: South East Inflow Outflow Discarded Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 Inflow Area=3.753 ac Peak Elev=895.78' Storage=32,356 cf 18.90 cfs 1.70 cfs 0.07 cfs 1.63 cfs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 413HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Pond 40.2P: South Central Inflow Area = 4.604 ac, 76.19% Impervious, Inflow Depth = 3.61" for 10y 24hr event Inflow = 22.68 cfs @ 12.13 hrs, Volume= 1.387 af Outflow = 1.09 cfs @ 13.64 hrs, Volume= 1.387 af, Atten= 95%, Lag= 90.5 min Discarded = 0.13 cfs @ 6.82 hrs, Volume= 0.847 af Primary = 0.96 cfs @ 13.64 hrs, Volume= 0.540 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 896.46' @ 13.64 hrs Surf.Area= 94,313 sf Storage= 42,281 cf Plug-Flow detention time= 1,273.7 min calculated for 1.387 af (100% of inflow) Center-of-Mass det. time= 1,273.7 min ( 2,031.5 - 757.8 ) Volume Invert Avail.Storage Storage Description #1 895.00' 64,623 cf Custom Stage Data (Prismatic) Listed below (Recalc) 216,920 cf Overall - 1,511 cf Embedded = 215,409 cf x 30.0% Voids #2 897.30' 74,846 cf Custom Stage Data (Prismatic) Listed below (Recalc) 188,626 cf Overall - 1,511 cf Embedded = 187,115 cf x 40.0% Voids #3 895.00' 1,511 cf 8.0" Round Pipe Storage Inside #1 L= 4,328.0' #4 897.30' 1,511 cf 8.0" Round Pipe Storage Inside #2 L= 4,328.0' 142,490 cf Total Available Storage Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 895.00 94,313 0 0 897.30 94,313 216,920 216,920 Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 897.30 94,313 0 0 899.30 94,313 188,626 188,626 Device Routing Invert Outlet Devices #1 Primary 895.00'12.0" Round Culvert L= 250.0' RCP, sq.cut end projecting, Ke= 0.500 Inlet / Outlet Invert= 895.00' / 893.25' S= 0.0070 '/' Cc= 0.900 n= 0.011 Concrete pipe, straight & clean, Flow Area= 0.79 sf #2 Device 1 895.80'8.0" Vert. Orifice/Grate C= 0.600 #3 Device 1 897.97'8.0" Vert. Orifice/Grate C= 0.600 #4 Discarded 895.00'0.060 in/hr Exfiltration over Surface area Phase-In= 0.01' Discarded OutFlow Max=0.13 cfs @ 6.82 hrs HW=895.01' (Free Discharge) 4=Exfiltration (Exfiltration Controls 0.13 cfs) Primary OutFlow Max=0.96 cfs @ 13.64 hrs HW=896.46' TW=0.00' (Dynamic Tailwater) 1=Culvert (Passes 0.96 cfs of 3.51 cfs potential flow) 2=Orifice/Grate (Orifice Controls 0.96 cfs @ 2.76 fps) 3=Orifice/Grate ( Controls 0.00 cfs) MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 414HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Pond 40.2P: South Central Inflow Outflow Discarded Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)24 22 20 18 16 14 12 10 8 6 4 2 0 Inflow Area=4.604 ac Peak Elev=896.46' Storage=42,281 cf 22.68 cfs 1.09 cfs 0.13 cfs0.96 cfs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 415HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Pond 40.3P: South Inflow Area = 5.237 ac, 69.55% Impervious, Inflow Depth = 3.50" for 10y 24hr event Inflow = 25.10 cfs @ 12.13 hrs, Volume= 1.526 af Outflow = 2.01 cfs @ 13.16 hrs, Volume= 1.526 af, Atten= 92%, Lag= 61.4 min Discarded = 0.17 cfs @ 12.73 hrs, Volume= 0.549 af Primary = 1.84 cfs @ 13.16 hrs, Volume= 0.977 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 899.84' @ 13.16 hrs Surf.Area= 120,464 sf Storage= 43,149 cf Plug-Flow detention time= 807.6 min calculated for 1.526 af (100% of inflow) Center-of-Mass det. time= 807.7 min ( 1,568.0 - 760.3 ) Volume Invert Avail.Storage Storage Description #1 897.50' 41,271 cf Custom Stage Data (Prismatic) Listed below (Recalc) 138,534 cf Overall - 965 cf Embedded = 137,569 cf x 30.0% Voids #2 899.80' 47,800 cf Custom Stage Data (Prismatic) Listed below (Recalc) 120,464 cf Overall - 965 cf Embedded = 119,499 cf x 40.0% Voids #3 897.50' 965 cf 8.0" Round Pipe Storage Inside #1 L= 2,764.0' #4 899.80' 965 cf 8.0" Round Pipe Storage Inside #2 L= 2,764.0' 91,000 cf Total Available Storage Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 897.50 60,232 0 0 899.80 60,232 138,534 138,534 Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 899.80 60,232 0 0 901.80 60,232 120,464 120,464 Device Routing Invert Outlet Devices #1 Primary 897.50'12.0" Round Culvert L= 175.0' RCP, sq.cut end projecting, Ke= 0.500 Inlet / Outlet Invert= 897.50' / 896.27' S= 0.0070 '/' Cc= 0.900 n= 0.011 Concrete pipe, straight & clean, Flow Area= 0.79 sf #2 Device 1 898.30'8.0" Vert. Orifice/Grate C= 0.600 #3 Device 1 900.47'8.0" Vert. Orifice/Grate C= 0.600 #4 Discarded 897.50'0.060 in/hr Exfiltration over Surface area Phase-In= 0.01' Discarded OutFlow Max=0.17 cfs @ 12.73 hrs HW=899.80' (Free Discharge) 4=Exfiltration (Exfiltration Controls 0.17 cfs) Primary OutFlow Max=1.84 cfs @ 13.16 hrs HW=899.84' TW=0.00' (Dynamic Tailwater) 1=Culvert (Passes 1.84 cfs of 4.33 cfs potential flow) 2=Orifice/Grate (Orifice Controls 1.84 cfs @ 5.28 fps) 3=Orifice/Grate ( Controls 0.00 cfs) MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 416HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Pond 40.3P: South Inflow Outflow Discarded Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)28 26 24 22 20 18 16 14 12 10 8 6 4 2 0 Inflow Area=5.237 ac Peak Elev=899.84' Storage=43,149 cf 25.10 cfs 2.01 cfs 0.17 cfs1.84 cfs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 417HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Pond 41.1P: South East Inflow Area = 1.607 ac, 85.30% Impervious, Inflow Depth = 3.77" for 10y 24hr event Inflow = 8.21 cfs @ 12.13 hrs, Volume= 0.505 af Outflow = 0.37 cfs @ 13.65 hrs, Volume= 0.505 af, Atten= 95%, Lag= 91.1 min Discarded = 0.06 cfs @ 7.20 hrs, Volume= 0.375 af Primary = 0.31 cfs @ 13.65 hrs, Volume= 0.131 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 889.12' @ 13.65 hrs Surf.Area= 45,024 sf Storage= 15,575 cf Plug-Flow detention time= 1,365.8 min calculated for 0.505 af (100% of inflow) Center-of-Mass det. time= 1,365.8 min ( 2,120.5 - 754.7 ) Volume Invert Avail.Storage Storage Description #1 888.00' 30,850 cf Custom Stage Data (Prismatic) Listed below (Recalc) 103,555 cf Overall - 721 cf Embedded = 102,834 cf x 30.0% Voids #2 890.30' 35,731 cf Custom Stage Data (Prismatic) Listed below (Recalc) 90,048 cf Overall - 721 cf Embedded = 89,327 cf x 40.0% Voids #3 888.00' 721 cf 8.0" Round Pipe Storage Inside #1 L= 2,066.0' #4 890.30' 721 cf 8.0" Round Pipe Storage Inside #2 L= 2,066.0' 68,023 cf Total Available Storage Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 888.00 45,024 0 0 890.30 45,024 103,555 103,555 Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 890.30 45,024 0 0 892.30 45,024 90,048 90,048 Device Routing Invert Outlet Devices #1 Primary 888.00'12.0" Round Culvert L= 70.0' RCP, sq.cut end projecting, Ke= 0.500 Inlet / Outlet Invert= 888.00' / 887.51' S= 0.0070 '/' Cc= 0.900 n= 0.011 Concrete pipe, straight & clean, Flow Area= 0.79 sf #2 Device 1 888.80'8.0" Vert. Orifice/Grate C= 0.600 #3 Device 1 890.97'8.0" Vert. Orifice/Grate C= 0.600 #4 Discarded 888.00'0.060 in/hr Exfiltration over Surface area Phase-In= 0.01' Discarded OutFlow Max=0.06 cfs @ 7.20 hrs HW=888.01' (Free Discharge) 4=Exfiltration (Exfiltration Controls 0.06 cfs) Primary OutFlow Max=0.31 cfs @ 13.65 hrs HW=889.12' TW=0.00' (Dynamic Tailwater) 1=Culvert (Passes 0.31 cfs of 2.97 cfs potential flow) 2=Orifice/Grate (Orifice Controls 0.31 cfs @ 1.91 fps) 3=Orifice/Grate ( Controls 0.00 cfs) MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 418HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Pond 41.1P: South East Inflow Outflow Discarded Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)9 8 7 6 5 4 3 2 1 0 Inflow Area=1.607 ac Peak Elev=889.12' Storage=15,575 cf 8.21 cfs 0.37 cfs 0.06 cfs0.31 cfs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 419HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Pond 41.2P: South Central Inflow Area = 3.591 ac, 80.17% Impervious, Inflow Depth = 3.68" for 10y 24hr event Inflow = 17.98 cfs @ 12.13 hrs, Volume= 1.102 af Outflow = 7.59 cfs @ 12.33 hrs, Volume= 1.102 af, Atten= 58%, Lag= 11.9 min Discarded = 0.05 cfs @ 12.10 hrs, Volume= 0.147 af Primary = 7.54 cfs @ 12.33 hrs, Volume= 0.956 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 884.54' @ 12.33 hrs Surf.Area= 33,574 sf Storage= 16,913 cf Plug-Flow detention time= 267.6 min calculated for 1.102 af (100% of inflow) Center-of-Mass det. time= 267.7 min ( 1,024.1 - 756.4 ) Volume Invert Avail.Storage Storage Description #1 881.50' 11,502 cf Custom Stage Data (Prismatic) Listed below (Recalc) 38,610 cf Overall - 269 cf Embedded = 38,341 cf x 30.0% Voids #2 883.80' 13,322 cf Custom Stage Data (Prismatic) Listed below (Recalc) 33,574 cf Overall - 269 cf Embedded = 33,305 cf x 40.0% Voids #3 881.50' 269 cf 8.0" Round Pipe Storage Inside #1 L= 770.0' #4 883.80' 269 cf 8.0" Round Pipe Storage Inside #2 L= 770.0' 25,362 cf Total Available Storage Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 881.50 16,787 0 0 883.80 16,787 38,610 38,610 Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 883.80 16,787 0 0 885.80 16,787 33,574 33,574 Device Routing Invert Outlet Devices #1 Primary 881.50'18.0" Round Culvert L= 22.0' RCP, sq.cut end projecting, Ke= 0.500 Inlet / Outlet Invert= 881.50' / 881.28' S= 0.0100 '/' Cc= 0.900 n= 0.011 Concrete pipe, straight & clean, Flow Area= 1.77 sf #2 Device 1 882.30'15.0" Vert. Orifice/Grate C= 0.600 #3 Device 1 884.47'18.0" Vert. Orifice/Grate C= 0.600 #4 Discarded 881.50'0.060 in/hr Exfiltration over Surface area Phase-In= 0.01' Discarded OutFlow Max=0.05 cfs @ 12.10 hrs HW=883.81' (Free Discharge) 4=Exfiltration (Exfiltration Controls 0.05 cfs) Primary OutFlow Max=7.54 cfs @ 12.33 hrs HW=884.54' TW=0.00' (Dynamic Tailwater) 1=Culvert (Passes 7.54 cfs of 12.88 cfs potential flow) 2=Orifice/Grate (Orifice Controls 7.51 cfs @ 6.12 fps) 3=Orifice/Grate (Orifice Controls 0.03 cfs @ 0.91 fps) MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 420HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Pond 41.2P: South Central Inflow Outflow Discarded Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 Inflow Area=3.591 ac Peak Elev=884.54' Storage=16,913 cf 17.98 cfs 7.59 cfs 0.05 cfs 7.54 cfs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 421HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Pond 41.3P: South West Inflow Area = 0.686 ac, 93.81% Impervious, Inflow Depth = 3.93" for 10y 24hr event Inflow = 3.62 cfs @ 12.13 hrs, Volume= 0.224 af Outflow = 0.17 cfs @ 13.63 hrs, Volume= 0.224 af, Atten= 95%, Lag= 90.0 min Discarded = 0.03 cfs @ 7.31 hrs, Volume= 0.176 af Primary = 0.14 cfs @ 13.63 hrs, Volume= 0.048 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 890.76' @ 13.63 hrs Surf.Area= 22,024 sf Storage= 6,905 cf Plug-Flow detention time= 1,369.9 min calculated for 0.224 af (100% of inflow) Center-of-Mass det. time= 1,369.9 min ( 2,121.9 - 752.0 ) Volume Invert Avail.Storage Storage Description #1 889.75' 15,091 cf Custom Stage Data (Prismatic) Listed below (Recalc) 50,655 cf Overall - 353 cf Embedded = 50,303 cf x 30.0% Voids #2 892.05' 17,478 cf Custom Stage Data (Prismatic) Listed below (Recalc) 44,048 cf Overall - 353 cf Embedded = 43,695 cf x 40.0% Voids #3 889.75' 353 cf 8.0" Round Pipe Storage Inside #1 L= 1,010.0' #4 892.05' 353 cf 8.0" Round Pipe Storage Inside #2 L= 1,010.0' 33,274 cf Total Available Storage Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 889.75 22,024 0 0 892.05 22,024 50,655 50,655 Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 892.05 22,024 0 0 894.05 22,024 44,048 44,048 Device Routing Invert Outlet Devices #1 Primary 889.75'12.0" Round Culvert L= 45.0' RCP, sq.cut end projecting, Ke= 0.500 Inlet / Outlet Invert= 889.75' / 889.43' S= 0.0071 '/' Cc= 0.900 n= 0.011 Concrete pipe, straight & clean, Flow Area= 0.79 sf #2 Device 1 890.55'8.0" Vert. Orifice/Grate C= 0.600 #3 Device 1 892.72'8.0" Vert. Orifice/Grate C= 0.600 #4 Discarded 889.75'0.060 in/hr Exfiltration over Surface area Phase-In= 0.01' Discarded OutFlow Max=0.03 cfs @ 7.31 hrs HW=889.76' (Free Discharge) 4=Exfiltration (Exfiltration Controls 0.03 cfs) Primary OutFlow Max=0.14 cfs @ 13.63 hrs HW=890.76' TW=0.00' (Dynamic Tailwater) 1=Culvert (Passes 0.14 cfs of 2.56 cfs potential flow) 2=Orifice/Grate (Orifice Controls 0.14 cfs @ 1.55 fps) 3=Orifice/Grate ( Controls 0.00 cfs) MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 422HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Pond 41.3P: South West Inflow Outflow Discarded Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)4 3 2 1 0 Inflow Area=0.686 ac Peak Elev=890.76' Storage=6,905 cf 3.62 cfs 0.17 cfs 0.03 cfs0.14 cfs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 423HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Pond 44P: Wetland 4 Inflow Area = 24.628 ac, 36.70% Impervious, Inflow Depth = 1.48" for 10y 24hr event Inflow = 13.35 cfs @ 12.30 hrs, Volume= 3.031 af Outflow = 13.34 cfs @ 12.31 hrs, Volume= 3.031 af, Atten= 0%, Lag= 0.5 min Primary = 13.34 cfs @ 12.31 hrs, Volume= 3.031 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 884.51' @ 12.31 hrs Surf.Area= 2,007 sf Storage= 730 cf Plug-Flow detention time= 2.7 min calculated for 3.031 af (100% of inflow) Center-of-Mass det. time= 2.2 min ( 959.9 - 957.7 ) Volume Invert Avail.Storage Storage Description #1 884.00' 37,633 cf Custom Stage Data (Prismatic) Listed below (Recalc) Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 884.00 870 0 0 884.50 1,980 713 713 885.00 3,500 1,370 2,083 886.00 7,800 5,650 7,733 887.00 14,000 10,900 18,633 888.00 24,000 19,000 37,633 Device Routing Invert Outlet Devices #1 Primary 884.03'Asymmetrical Weir, C= 3.27 Offset (feet) 0.00 51.00 133.60 176.00 217.30 239.00 Elev. (feet) 889.78 886.05 884.03 885.84 889.00 889.78 Primary OutFlow Max=13.34 cfs @ 12.31 hrs HW=884.51' TW=0.00' (Dynamic Tailwater) 1=Asymmetrical Weir (Weir Controls 13.34 cfs @ 0.91 fps) MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 424HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Pond 44P: Wetland 4 Inflow Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 Inflow Area=24.628 ac Peak Elev=884.51' Storage=730 cf 13.35 cfs 13.34 cfs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 425HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Pond 46P: Triangle Basin Inflow Area = 2.229 ac, 19.60% Impervious, Inflow Depth = 2.61" for 10y 24hr event Inflow = 7.61 cfs @ 12.17 hrs, Volume= 0.485 af Outflow = 5.67 cfs @ 12.27 hrs, Volume= 0.485 af, Atten= 26%, Lag= 6.0 min Discarded = 0.01 cfs @ 12.27 hrs, Volume= 0.014 af Primary = 5.66 cfs @ 12.27 hrs, Volume= 0.472 af Secondary = 0.00 cfs @ 0.00 hrs, Volume= 0.000 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 887.68' @ 12.27 hrs Surf.Area= 5,408 sf Storage= 2,243 cf Plug-Flow detention time= 54.2 min calculated for 0.485 af (100% of inflow) Center-of-Mass det. time= 54.3 min ( 842.7 - 788.4 ) Volume Invert Avail.Storage Storage Description #1 884.37' 1,087 cf Sand section (Prismatic) Listed below (Recalc) 3,648 cf Overall - 24 cf Embedded = 3,623 cf x 30.0% Voids #2 884.37' 24 cf 8.0" Round Pipe Storage Inside #1 L= 70.0' #3 886.67' 159 cf Topsoil (Prismatic) Listed below (Recalc) 793 cf Overall x 20.0% Voids #4 887.17' 14,801 cf Open pond (Prismatic) Listed below (Recalc) 16,071 cf Total Available Storage Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 884.37 1,586 0 0 886.67 1,586 3,648 3,648 Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 886.67 1,586 0 0 887.17 1,586 793 793 Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 887.17 1,586 0 0 890.90 6,350 14,801 14,801 Device Routing Invert Outlet Devices #1 Primary 884.37'18.0" Round Culvert L= 125.0' RCP, sq.cut end projecting, Ke= 0.500 Inlet / Outlet Invert= 884.37' / 884.00' S= 0.0030 '/' Cc= 0.900 n= 0.011 Concrete pipe, straight & clean, Flow Area= 1.77 sf #2 Device 1 885.17'12.0" Vert. Orifice/Grate C= 0.600 #3 Device 1 887.41'12.0" Vert. Orifice/Grate C= 0.600 #4 Secondary 890.75'20.0' long x 5.0' breadth Broad-Crested Rectangular Weir Head (feet) 0.20 0.40 0.60 0.80 1.00 1.20 1.40 1.60 1.80 2.00 2.50 3.00 3.50 4.00 4.50 5.00 5.50 Coef. (English) 2.34 2.50 2.70 2.68 2.68 2.66 2.65 2.65 2.65 MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 426HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC 2.65 2.67 2.66 2.68 2.70 2.74 2.79 2.88 #5 Discarded 884.37'0.060 in/hr Exfiltration over Surface area Phase-In= 0.01' Discarded OutFlow Max=0.01 cfs @ 12.27 hrs HW=887.68' (Free Discharge) 5=Exfiltration (Exfiltration Controls 0.01 cfs) Primary OutFlow Max=5.66 cfs @ 12.27 hrs HW=887.68' TW=0.00' (Dynamic Tailwater) 1=Culvert (Passes 5.66 cfs of 11.82 cfs potential flow) 2=Orifice/Grate (Orifice Controls 5.36 cfs @ 6.82 fps) 3=Orifice/Grate (Orifice Controls 0.30 cfs @ 1.77 fps) Secondary OutFlow Max=0.00 cfs @ 0.00 hrs HW=884.37' TW=0.00' (Dynamic Tailwater) 4=Broad-Crested Rectangular Weir ( Controls 0.00 cfs) Pond 46P: Triangle Basin Inflow Outflow Discarded Primary Secondary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)8 7 6 5 4 3 2 1 0 Inflow Area=2.229 ac Peak Elev=887.68' Storage=2,243 cf 7.61 cfs 5.67 cfs 0.01 cfs 5.66 cfs 0.00 cfs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 427HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Pond 47P: Bluff Creek - West Basin Inflow Area = 7.031 ac, 70.52% Impervious, Inflow Depth = 3.48" for 10y 24hr event Inflow = 33.97 cfs @ 12.10 hrs, Volume= 2.037 af Outflow = 1.61 cfs @ 13.62 hrs, Volume= 2.037 af, Atten= 95%, Lag= 91.2 min Discarded = 0.15 cfs @ 7.14 hrs, Volume= 0.996 af Primary = 1.47 cfs @ 13.62 hrs, Volume= 1.041 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 910.09' @ 13.62 hrs Surf.Area= 107,300 sf Storage= 62,149 cf Plug-Flow detention time= 1,140.7 min calculated for 2.037 af (100% of inflow) Center-of-Mass det. time= 1,140.8 min ( 1,904.8 - 764.1 ) Volume Invert Avail.Storage Storage Description #1 908.20' 73,521 cf Custom Stage Data (Prismatic) Listed below (Recalc) 246,790 cf Overall - 1,719 cf Embedded = 245,071 cf x 30.0% Voids #2 910.50' 85,152 cf Custom Stage Data (Prismatic) Listed below (Recalc) 214,600 cf Overall - 1,719 cf Embedded = 212,881 cf x 40.0% Voids #3 908.20' 1,719 cf 8.0" Round Pipe Storage Inside #1 L= 4,925.0' #4 910.50' 1,719 cf 8.0" Round Pipe Storage Inside #2 L= 4,925.0' 162,112 cf Total Available Storage Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 908.20 107,300 0 0 910.50 107,300 246,790 246,790 Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 910.50 107,300 0 0 912.50 107,300 214,600 214,600 Device Routing Invert Outlet Devices #1 Primary 908.20'12.0" Round Culvert L= 307.0' RCP, square edge headwall, Ke= 0.500 Inlet / Outlet Invert= 908.20' / 905.13' S= 0.0100 '/' Cc= 0.900 n= 0.011 Concrete pipe, straight & clean, Flow Area= 0.79 sf #2 Device 1 909.00'8.0" Vert. Orifice/Grate C= 0.600 #3 Device 1 911.24'8.0" Vert. Orifice/Grate C= 0.600 #4 Discarded 908.20'0.060 in/hr Exfiltration over Surface area Phase-In= 0.01' Discarded OutFlow Max=0.15 cfs @ 7.14 hrs HW=908.21' (Free Discharge) 4=Exfiltration (Exfiltration Controls 0.15 cfs) Primary OutFlow Max=1.47 cfs @ 13.62 hrs HW=910.09' TW=0.00' (Dynamic Tailwater) 1=Culvert (Passes 1.47 cfs of 4.33 cfs potential flow) 2=Orifice/Grate (Orifice Controls 1.47 cfs @ 4.20 fps) 3=Orifice/Grate ( Controls 0.00 cfs) MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 428HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Pond 47P: Bluff Creek - West Basin Inflow Outflow Discarded Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)38 36 34 32 30 28 26 24 22 20 18 16 14 12 10 8 6 4 2 0 Inflow Area=7.031 ac Peak Elev=910.09' Storage=62,149 cf 33.97 cfs 1.61 cfs 0.15 cfs1.47 cfs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 429HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Pond 48P: Bluff Creek - East Basin Inflow Area = 3.441 ac, 81.34% Impervious, Inflow Depth = 3.70" for 10y 24hr event Inflow = 21.95 cfs @ 12.07 hrs, Volume= 1.062 af Outflow = 1.51 cfs @ 13.06 hrs, Volume= 1.062 af, Atten= 93%, Lag= 59.3 min Discarded = 0.07 cfs @ 6.37 hrs, Volume= 0.456 af Primary = 1.44 cfs @ 13.06 hrs, Volume= 0.607 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 897.22' @ 13.06 hrs Surf.Area= 52,085 sf Storage= 29,788 cf Plug-Flow detention time= 892.3 min calculated for 1.062 af (100% of inflow) Center-of-Mass det. time= 892.4 min ( 1,643.8 - 751.4 ) Volume Invert Avail.Storage Storage Description #1 895.35' 35,688 cf Custom Stage Data (Prismatic) Listed below (Recalc) 119,795 cf Overall - 834 cf Embedded = 118,961 cf x 30.0% Voids #2 897.65' 41,334 cf Custom Stage Data (Prismatic) Listed below (Recalc) 104,170 cf Overall - 834 cf Embedded = 103,336 cf x 40.0% Voids #3 895.35' 834 cf 8.0" Round Pipe Storage Inside #1 L= 2,390.0' #4 897.65' 834 cf 8.0" Round Pipe Storage Inside #2 L= 2,390.0' 78,691 cf Total Available Storage Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 895.35 52,085 0 0 897.65 52,085 119,795 119,795 Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 897.65 52,085 0 0 899.65 52,085 104,170 104,170 Device Routing Invert Outlet Devices #1 Primary 895.35'12.0" Round Culvert L= 637.0' RCP, square edge headwall, Ke= 0.500 Inlet / Outlet Invert= 895.35' / 888.98' S= 0.0100 '/' Cc= 0.900 n= 0.011 Concrete pipe, straight & clean, Flow Area= 0.79 sf #2 Device 1 896.15'8.0" Vert. Orifice/Grate C= 0.600 #3 Device 1 898.39'8.0" Vert. Orifice/Grate C= 0.600 #4 Discarded 895.35'0.060 in/hr Exfiltration over Surface area Phase-In= 0.01' Discarded OutFlow Max=0.07 cfs @ 6.37 hrs HW=895.36' (Free Discharge) 4=Exfiltration (Exfiltration Controls 0.07 cfs) Primary OutFlow Max=1.44 cfs @ 13.06 hrs HW=897.22' TW=0.00' (Dynamic Tailwater) 1=Culvert (Passes 1.44 cfs of 4.26 cfs potential flow) 2=Orifice/Grate (Orifice Controls 1.44 cfs @ 4.13 fps) 3=Orifice/Grate ( Controls 0.00 cfs) MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 430HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Pond 48P: Bluff Creek - East Basin Inflow Outflow Discarded Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)24 22 20 18 16 14 12 10 8 6 4 2 0 Inflow Area=3.441 ac Peak Elev=897.22' Storage=29,788 cf 21.95 cfs 1.51 cfs 0.07 cfs1.44 cfs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 431HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Pond 48P(2): Bluff Creek - East Basin Inflow Area = 2.152 ac, 68.04% Impervious, Inflow Depth = 3.47" for 10y 24hr event Inflow = 10.25 cfs @ 12.13 hrs, Volume= 0.622 af Outflow = 1.66 cfs @ 12.63 hrs, Volume= 0.622 af, Atten= 84%, Lag= 30.0 min Discarded = 0.03 cfs @ 6.38 hrs, Volume= 0.207 af Primary = 1.62 cfs @ 12.63 hrs, Volume= 0.415 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 897.82' @ 12.63 hrs Surf.Area= 24,429 sf Storage= 15,416 cf Plug-Flow detention time= 656.2 min calculated for 0.622 af (100% of inflow) Center-of-Mass det. time= 656.2 min ( 1,417.1 - 760.9 ) Volume Invert Avail.Storage Storage Description #1 895.75' 16,739 cf Custom Stage Data (Prismatic) Listed below (Recalc) 56,187 cf Overall - 391 cf Embedded = 55,795 cf x 30.0% Voids #2 898.05' 19,387 cf Custom Stage Data (Prismatic) Listed below (Recalc) 48,858 cf Overall - 391 cf Embedded = 48,467 cf x 40.0% Voids #3 895.75' 391 cf 8.0" Round Pipe Storage Inside #1 L= 1,121.0' #4 898.05' 391 cf 8.0" Round Pipe Storage Inside #2 L= 1,121.0' 36,908 cf Total Available Storage Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 895.75 24,429 0 0 898.05 24,429 56,187 56,187 Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 898.05 24,429 0 0 900.05 24,429 48,858 48,858 Device Routing Invert Outlet Devices #1 Primary 895.75'8.0" Round Culvert L= 50.0' RCP, square edge headwall, Ke= 0.500 Inlet / Outlet Invert= 895.75' / 895.25' S= 0.0100 '/' Cc= 0.900 n= 0.011 Concrete pipe, straight & clean, Flow Area= 0.35 sf #2 Device 1 896.55'8.0" Vert. Orifice/Grate C= 0.600 #3 Device 1 898.79'8.0" Vert. Orifice/Grate C= 0.600 #4 Discarded 895.75'0.060 in/hr Exfiltration over Surface area Phase-In= 0.01' Discarded OutFlow Max=0.03 cfs @ 6.38 hrs HW=895.76' (Free Discharge) 4=Exfiltration (Exfiltration Controls 0.03 cfs) Primary OutFlow Max=1.62 cfs @ 12.63 hrs HW=897.82' TW=0.00' (Dynamic Tailwater) 1=Culvert (Passes 1.62 cfs of 2.08 cfs potential flow) 2=Orifice/Grate (Orifice Controls 1.62 cfs @ 4.65 fps) 3=Orifice/Grate ( Controls 0.00 cfs) MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 432HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Pond 48P(2): Bluff Creek - East Basin Inflow Outflow Discarded Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)11 10 9 8 7 6 5 4 3 2 1 0 Inflow Area=2.152 ac Peak Elev=897.82' Storage=15,416 cf 10.25 cfs 1.66 cfs 0.03 cfs 1.62 cfs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 433HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Time span=0.00-360.00 hrs, dt=0.01 hrs, 36001 points Runoff by SCS TR-20 method, UH=SCS, Weighted-Q Reach routing by Dyn-Stor-Ind method - Pond routing by Dyn-Stor-Ind method Runoff Area=228,234 sf 16.43% Impervious Runoff Depth=5.42"Subcatchment 21S: Direct to 21P Tc=10.0 min CN=WQ Runoff=38.35 cfs 2.366 af Runoff Area=10,548 sf 0.00% Impervious Runoff Depth=4.85"Subcatchment 22oS: From Lyman Flow Length=57' Slope=0.3330 '/' Tc=5.0 min CN=78 Runoff=2.08 cfs 0.098 af Runoff Area=41,671 sf 0.00% Impervious Runoff Depth=5.07"Subcatchment 22S: Direct to Wetland 6 Tc=5.0 min CN=80 Runoff=8.57 cfs 0.405 af Runoff Area=59,105 sf 69.40% Impervious Runoff Depth=6.53"Subcatchment 24S: Northwest Tc=10.0 min CN=WQ Runoff=11.17 cfs 0.738 af Runoff Area=202,586 sf 45.17% Impervious Runoff Depth=6.02"Subcatchment 25S: West North Tc=10.0 min CN=WQ Runoff=36.35 cfs 2.334 af Runoff Area=121,658 sf 66.00% Impervious Runoff Depth=6.46"Subcatchment 28S: Avienda Pkwy - NW Tc=15.0 min CN=WQ Runoff=18.94 cfs 1.503 af Runoff Area=1,162 sf 100.00% Impervious Runoff Depth=7.17"Subcatchment 29oS: North Offsite Tc=5.0 min CN=98 Runoff=0.30 cfs 0.016 af Runoff Area=32,839 sf 22.84% Impervious Runoff Depth=5.55"Subcatchment 31S: West Central Flow Length=360' Slope=0.0200 '/' Tc=14.7 min UI Adjusted CN=WQ Runoff=4.70 cfs 0.349 af Runoff Area=115,865 sf 17.26% Impervious Runoff Depth=5.39"Subcatchment 33oS: Offsite West - North Flow Length=431' Tc=7.3 min UI Adjusted CN=WQ Runoff=21.48 cfs 1.195 af Runoff Area=78,153 sf 0.00% Impervious Runoff Depth=5.77"Subcatchment 33S: Direct to Wetland 3 Tc=12.0 min CN=WQ Runoff=12.63 cfs 0.863 af Runoff Area=25,470 sf 19.98% Impervious Runoff Depth=5.49"Subcatchment 34dS: Offsite West Direct Tc=10.0 min CN=WQ Runoff=4.32 cfs 0.268 af Runoff Area=32,710 sf 8.25% Impervious Runoff Depth=5.11"Subcatchment 34oS: Offsite to West South Flow Length=37' Slope=0.1620 '/' Tc=5.0 min UI Adjusted CN=WQ Runoff=6.69 cfs 0.320 af Runoff Area=2.423 ac 0.00% Impervious Runoff Depth=2.39"Subcatchment 34S: West Woods Flow Length=268' Tc=11.1 min CN=55 Runoff=7.22 cfs 0.482 af Runoff Area=3.790 ac 0.00% Impervious Runoff Depth=2.39"Subcatchment 35S: Southwest Flow Length=270' Tc=18.3 min CN=55 Runoff=8.90 cfs 0.754 af Runoff Area=1,628 sf 100.00% Impervious Runoff Depth=7.17"Subcatchment 36oS: Southwest Offsite Tc=5.0 min CN=98 Runoff=0.41 cfs 0.022 af Runoff Area=163,468 sf 81.66% Impervious Runoff Depth=6.79"Subcatchment 40.1S: South - East Tc=10.0 min CN=WQ Runoff=31.69 cfs 2.122 af MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 434HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Runoff Area=200,567 sf 76.19% Impervious Runoff Depth=6.67"Subcatchment 40.2S: South - Central Tc=10.0 min CN=WQ Runoff=38.45 cfs 2.560 af Runoff Area=228,145 sf 69.55% Impervious Runoff Depth=6.53"Subcatchment 40.3S: South - West Tc=10.0 min CN=WQ Runoff=43.14 cfs 2.851 af Runoff Area=69,984 sf 85.30% Impervious Runoff Depth=6.86"Subcatchment 41.1S: South - East Tc=10.0 min CN=WQ Runoff=13.67 cfs 0.919 af Runoff Area=156,419 sf 80.17% Impervious Runoff Depth=6.75"Subcatchment 41.2S: South - Central Tc=10.0 min CN=WQ Runoff=30.24 cfs 2.021 af Runoff Area=29,884 sf 93.81% Impervious Runoff Depth=7.04"Subcatchment 41.3S: South - west Tc=10.0 min CN=WQ Runoff=5.94 cfs 0.403 af Runoff Area=41,871 sf 0.00% Impervious Runoff Depth=5.07"Subcatchment 42.1S: South Tc=5.0 min CN=80 Runoff=8.61 cfs 0.406 af Runoff Area=24,525 sf 0.00% Impervious Runoff Depth=5.07"Subcatchment 42.2S: Southeast Tc=5.0 min CN=80 Runoff=5.04 cfs 0.238 af Runoff Area=3.222 ac 0.00% Impervious Runoff Depth=2.39"Subcatchment 43.1S: East Woods Flow Length=530' Tc=15.2 min CN=55 Runoff=8.28 cfs 0.641 af Runoff Area=1.862 ac 0.00% Impervious Runoff Depth=2.39"Subcatchment 43.2S: Northeast Woods Flow Length=623' Tc=19.5 min CN=55 Runoff=4.24 cfs 0.371 af Runoff Area=441,314 sf 0.00% Impervious Runoff Depth=2.39"Subcatchment 44S: North Woods Flow Length=599' Tc=16.5 min CN=55 Runoff=24.95 cfs 2.017 af Runoff Area=206,303 sf 65.51% Impervious Runoff Depth=6.41"Subcatchment 45S: Central - West Tc=10.0 min CN=WQ Runoff=39.16 cfs 2.532 af Runoff Area=97,082 sf 19.60% Impervious Runoff Depth=5.49"Subcatchment 46S: South Townhomes Flow Length=701' Tc=12.6 min CN=WQ Runoff=14.82 cfs 1.019 af Runoff Area=2.295 ac 80.87% Impervious Runoff Depth=6.77"Subcatchment 47S: Bluff Creek Blvd - West Tc=5.0 min CN=WQ Runoff=24.48 cfs 1.295 af Runoff Area=93,721 sf 68.04% Impervious Runoff Depth=6.50"Subcatchment 48.1S: Direct to 48P (2) Tc=10.0 min CN=WQ Runoff=17.66 cfs 1.166 af Runoff Area=3.441 ac 81.34% Impervious Runoff Depth=6.78"Subcatchment 48S: Bluff Creek Blvd - East Tc=5.0 min CN=WQ Runoff=36.74 cfs 1.944 af Inflow=23.39 cfs 6.546 afReach 20R: Northwest Drainage Outflow=23.39 cfs 6.546 af Avg. Flow Depth=0.74' Max Vel=1.13 fps Inflow=23.44 cfs 6.546 afReach 21R: Lower Wetland 6 n=0.050 L=187.0' S=0.0053 '/' Capacity=3,072.14 cfs Outflow=23.39 cfs 6.546 af MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 435HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Inflow=18.65 cfs 4.232 afReach 30R: SW Drainage Outflow=18.65 cfs 4.232 af Inflow=11.58 cfs 1.022 afReach 35R: Direct Runoff Outflow=11.58 cfs 1.022 af Inflow=82.03 cfs 17.808 afReach 40R: South Drainage Outflow=82.03 cfs 17.808 af Inflow=21.12 cfs 4.113 afReach 42.1R: South Outflow=21.12 cfs 4.113 af Inflow=10.54 cfs 4.786 afReach 42.2R: Southeast Outflow=10.54 cfs 4.786 af Inflow=43.57 cfs 8.267 afReach 44R: Wetland 4 Channel Outflow=43.57 cfs 8.267 af Inflow=15.12 cfs 5.880 afReach 48R: Development to Wetland 4 Outflow=15.12 cfs 5.880 af Inflow=112.46 cfs 28.586 afReach 50R: Bluff Creek Drainage Outflow=112.46 cfs 28.586 af Peak Elev=894.37' Storage=106,653 cf Inflow=57.02 cfs 6.420 afPond 21P: North Basin Discarded=0.16 cfs 0.393 af Primary=10.97 cfs 5.180 af Secondary=11.31 cfs 0.848 af Outflow=22.45 cfs 6.420 af Peak Elev=916.40' Storage=13,529 cf Inflow=11.17 cfs 0.738 afPond 24P: Northwest Basin Discarded=0.03 cfs 0.097 af Primary=3.56 cfs 0.642 af Outflow=3.59 cfs 0.738 af Peak Elev=917.39' Storage=26,341 cf Inflow=36.35 cfs 2.334 afPond 25P: West - North Discarded=0.06 cfs 0.139 af Primary=16.57 cfs 2.195 af Outflow=16.64 cfs 2.334 af Peak Elev=913.32' Storage=37,950 cf Inflow=18.94 cfs 1.503 afPond 28P: Avienda Pkwy - NW Basin Discarded=0.09 cfs 0.285 af Primary=3.42 cfs 1.218 af Outflow=3.50 cfs 1.503 af Peak Elev=924.15' Storage=3,179 cf Inflow=4.70 cfs 0.349 afPond 31P: West South Basin Discarded=0.01 cfs 0.021 af Primary=2.73 cfs 0.328 af Secondary=0.00 cfs 0.000 af Outflow=2.74 cfs 0.349 af Peak Elev=899.16' Inflow=16.57 cfs 2.195 afPond 32P: Drop MH 18.0" Round Culvert n=0.011 L=90.0' S=0.0056 '/' Outflow=16.57 cfs 2.195 af Peak Elev=922.02' Storage=56,825 cf Inflow=34.25 cfs 2.386 afPond 33P: Wetland 3 Primary=3.67 cfs 2.215 af Secondary=1.99 cfs 0.171 af Outflow=5.65 cfs 2.386 af Peak Elev=909.20' Storage=0.206 af Inflow=14.32 cfs 3.017 afPond 34P: West - South (existing) Outflow=7.43 cfs 3.017 af Peak Elev=896.55' Inflow=3.56 cfs 0.642 afPond 35P: Drop MH 12.0" Round Culvert n=0.011 L=150.0' S=0.0053 '/' Outflow=3.56 cfs 0.642 af MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 436HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Peak Elev=896.10' Inflow=3.42 cfs 1.218 afPond 36P: Drop MH 12.0" Round Culvert n=0.011 L=100.0' S=0.0050 '/' Outflow=3.42 cfs 1.218 af Peak Elev=897.13' Storage=59,401 cf Inflow=31.69 cfs 2.122 afPond 40.1P: South East Discarded=0.14 cfs 0.496 af Primary=3.37 cfs 1.626 af Outflow=3.51 cfs 2.122 af Peak Elev=897.65' Storage=79,999 cf Inflow=38.45 cfs 2.560 afPond 40.2P: South Central Discarded=0.26 cfs 0.947 af Primary=2.07 cfs 1.613 af Outflow=2.33 cfs 2.560 af Peak Elev=901.39' Storage=81,048 cf Inflow=43.14 cfs 2.851 afPond 40.3P: South Discarded=0.17 cfs 0.613 af Primary=4.07 cfs 2.238 af Outflow=4.24 cfs 2.851 af Peak Elev=889.87' Storage=25,738 cf Inflow=13.67 cfs 0.919 afPond 41.1P: South East Discarded=0.06 cfs 0.385 af Primary=1.44 cfs 0.534 af Outflow=1.50 cfs 0.919 af Peak Elev=885.73' Storage=24,905 cf Inflow=30.24 cfs 2.021 afPond 41.2P: South Central Discarded=0.05 cfs 0.150 af Primary=15.88 cfs 1.871 af Outflow=15.92 cfs 2.021 af Peak Elev=891.29' Storage=10,393 cf Inflow=5.94 cfs 0.403 afPond 41.3P: South West Discarded=0.03 cfs 0.180 af Primary=1.07 cfs 0.223 af Outflow=1.10 cfs 0.403 af Peak Elev=884.77' Storage=1,353 cf Inflow=39.40 cfs 7.897 afPond 44P: Wetland 4 Outflow=39.38 cfs 7.896 af Peak Elev=888.74' Storage=5,342 cf Inflow=14.82 cfs 1.019 afPond 46P: Triangle Basin Discarded=0.01 cfs 0.014 af Primary=10.08 cfs 1.005 af Secondary=0.00 cfs 0.000 af Outflow=10.09 cfs 1.019 af Peak Elev=911.58' Storage=122,722 cf Inflow=58.16 cfs 3.826 afPond 47P: Bluff Creek - West Basin Discarded=0.30 cfs 1.189 af Primary=2.88 cfs 2.638 af Outflow=3.18 cfs 3.826 af Peak Elev=898.56' Storage=55,932 cf Inflow=36.74 cfs 1.944 afPond 48P: Bluff Creek - East Basin Discarded=0.14 cfs 0.501 af Primary=2.52 cfs 1.443 af Outflow=2.66 cfs 1.944 af Peak Elev=899.20' Storage=28,575 cf Inflow=17.66 cfs 1.166 afPond 48P(2): Bluff Creek - East Basin Discarded=0.07 cfs 0.220 af Primary=2.74 cfs 0.945 af Outflow=2.81 cfs 1.166 af Total Runoff Area = 79.129 ac Runoff Volume = 34.216 af Average Runoff Depth = 5.19" 60.33% Pervious = 47.742 ac 39.67% Impervious = 31.387 ac MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 437HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 21S: Direct to 21P Runoff = 38.35 cfs @ 12.13 hrs, Volume= 2.366 af, Depth= 5.42" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Area (sf) CN Description 37,500 98 Paved parking, HSG D 190,734 80 >75% Grass cover, Good, HSG D 228,234 Weighted Average 190,734 80 83.57% Pervious Area 37,500 98 16.43% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 10.0 Direct Entry, Subcatchment 21S: Direct to 21P Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)42 40 38 36 34 32 30 28 26 24 22 20 18 16 14 12 10 8 6 4 2 0 MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Runoff Area=228,234 sf Runoff Volume=2.366 af Runoff Depth=5.42" Tc=10.0 min CN=WQ 38.35 cfs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 438HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 22oS: From Lyman Runoff = 2.08 cfs @ 12.07 hrs, Volume= 0.098 af, Depth= 4.85" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Area (sf) CN Description 10,548 78 Meadow, non-grazed, HSG D 10,548 78 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 2.1 57 0.3330 0.44 Sheet Flow, Grass: Short n= 0.150 P2= 2.87" 2.9 Direct Entry, Make up to 5 minutes 5.0 57 Total Subcatchment 22oS: From Lyman Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)2 1 0 MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Runoff Area=10,548 sf Runoff Volume=0.098 af Runoff Depth=4.85" Flow Length=57' Slope=0.3330 '/' Tc=5.0 min CN=78 2.08 cfs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 439HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 22S: Direct to Wetland 6 Runoff = 8.57 cfs @ 12.07 hrs, Volume= 0.405 af, Depth= 5.07" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Area (sf) CN Description 41,671 80 >75% Grass cover, Good, HSG D 41,671 80 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 5.0 Direct Entry, Subcatchment 22S: Direct to Wetland 6 Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)9 8 7 6 5 4 3 2 1 0 MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Runoff Area=41,671 sf Runoff Volume=0.405 af Runoff Depth=5.07" Tc=5.0 min CN=80 8.57 cfs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 440HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 24S: Northwest Runoff = 11.17 cfs @ 12.13 hrs, Volume= 0.738 af, Depth= 6.53" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Area (sf) CN Description 18,089 80 >75% Grass cover, Good, HSG D * 41,016 98 Paved parking and roofs, HSG D 59,105 Weighted Average 18,089 80 30.60% Pervious Area 41,016 98 69.40% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 10.0 Direct Entry, Subcatchment 24S: Northwest Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)12 11 10 9 8 7 6 5 4 3 2 1 0 MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Runoff Area=59,105 sf Runoff Volume=0.738 af Runoff Depth=6.53" Tc=10.0 min CN=WQ 11.17 cfs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 441HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 25S: West North Runoff = 36.35 cfs @ 12.13 hrs, Volume= 2.334 af, Depth= 6.02" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Area (sf) CN Description 111,088 80 >75% Grass cover, Good, HSG D * 91,498 98 Paved parking, & roofs HSG D 202,586 Weighted Average 111,088 80 54.83% Pervious Area 91,498 98 45.17% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 10.0 Direct Entry, Subcatchment 25S: West North Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)40 38 36 34 32 30 28 26 24 22 20 18 16 14 12 10 8 6 4 2 0 MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Runoff Area=202,586 sf Runoff Volume=2.334 af Runoff Depth=6.02" Tc=10.0 min CN=WQ 36.35 cfs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 442HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 28S: Avienda Pkwy - NW Runoff = 18.94 cfs @ 12.19 hrs, Volume= 1.503 af, Depth= 6.46" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Area (sf) CN Description 41,364 80 >75% Grass cover, Good, HSG D 80,294 98 Paved roads w/curbs & sewers, HSG D 121,658 Weighted Average 41,364 80 34.00% Pervious Area 80,294 98 66.00% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 15.0 Direct Entry, Subcatchment 28S: Avienda Pkwy - NW Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Runoff Area=121,658 sf Runoff Volume=1.503 af Runoff Depth=6.46" Tc=15.0 min CN=WQ 18.94 cfs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 443HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 29oS: North Offsite Runoff = 0.30 cfs @ 12.07 hrs, Volume= 0.016 af, Depth= 7.17" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Area (sf) CN Description 1,162 98 Paved parking, HSG D 1,162 98 100.00% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 5.0 Direct Entry, Subcatchment 29oS: North Offsite Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.32 0.3 0.28 0.26 0.24 0.22 0.2 0.18 0.16 0.14 0.12 0.1 0.08 0.06 0.04 0.02 0 MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Runoff Area=1,162 sf Runoff Volume=0.016 af Runoff Depth=7.17" Tc=5.0 min CN=98 0.30 cfs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 444HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 31S: West Central Runoff = 4.70 cfs @ 12.20 hrs, Volume= 0.349 af, Depth= 5.55" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Area (sf) CN Adj Description 25,339 80 80 >75% Grass cover, Good, HSG D 7,500 98 98 Unconnected roofs, HSG D 32,839 Weighted Average 25,339 80 80 77.16% Pervious Area 7,500 98 98 22.84% Impervious Area 7,500 100.00% Unconnected Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 10.3 100 0.0200 0.16 Sheet Flow, Grass: Short n= 0.150 P2= 2.87" 4.4 260 0.0200 0.99 Shallow Concentrated Flow, Short Grass Pasture Kv= 7.0 fps 14.7 360 Total Subcatchment 31S: West Central Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)5 4 3 2 1 0 MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Runoff Area=32,839 sf Runoff Volume=0.349 af Runoff Depth=5.55" Flow Length=360' Slope=0.0200 '/' Tc=14.7 min UI Adjusted CN=WQ 4.70 cfs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 445HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 33oS: Offsite West - North Runoff = 21.48 cfs @ 12.10 hrs, Volume= 1.195 af, Depth= 5.39" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Area (sf) CN Adj Description 20,000 98 98 Unconnected roofs, HSG D 71,000 80 80 >75% Grass cover, Good, HSG D * 12,720 96 96 Wetland, Good, HSG D 12,145 58 58 Meadow, non-grazed, HSG B 115,865 Weighted Average 95,865 79 79 82.74% Pervious Area 20,000 98 98 17.26% Impervious Area 20,000 100.00% Unconnected Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 5.0 25 0.0200 0.08 Sheet Flow, Grass: Dense n= 0.240 P2= 2.87" 2.3 406 0.0390 2.96 Shallow Concentrated Flow, Grassed Waterway Kv= 15.0 fps 7.3 431 Total Subcatchment 33oS: Offsite West - North Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Runoff Area=115,865 sf Runoff Volume=1.195 af Runoff Depth=5.39" Flow Length=431' Tc=7.3 min UI Adjusted CN=WQ 21.48 cfs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 446HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 33S: Direct to Wetland 3 Runoff = 12.63 cfs @ 12.16 hrs, Volume= 0.863 af, Depth= 5.77" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Area (sf) CN Description * 29,365 96 Wetland, Good, HSG D 48,788 80 >75% Grass cover, Good, HSG D 78,153 Weighted Average 78,153 86 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 12.0 Direct Entry, Subcatchment 33S: Direct to Wetland 3 Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Runoff Area=78,153 sf Runoff Volume=0.863 af Runoff Depth=5.77" Tc=12.0 min CN=WQ 12.63 cfs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 447HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 34dS: Offsite West Direct Runoff = 4.32 cfs @ 12.13 hrs, Volume= 0.268 af, Depth= 5.49" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Area (sf) CN Description 20,380 80 >75% Grass cover, Good, HSG D * 5,090 98 Paved, HSG D 25,470 Weighted Average 20,380 80 80.02% Pervious Area 5,090 98 19.98% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 10.0 Direct Entry, Subcatchment 34dS: Offsite West Direct Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)4 3 2 1 0 MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Runoff Area=25,470 sf Runoff Volume=0.268 af Runoff Depth=5.49" Tc=10.0 min CN=WQ 4.32 cfs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 448HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 34oS: Offsite to West South Runoff = 6.69 cfs @ 12.07 hrs, Volume= 0.320 af, Depth= 5.11" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Area (sf) CN Adj Description 20,410 78 78 Meadow, non-grazed, HSG D 2,700 98 98 Unconnected roofs, HSG D 9,600 80 80 >75% Grass cover, Good, HSG D 32,710 Weighted Average 30,010 79 79 91.75% Pervious Area 2,700 98 98 8.25% Impervious Area 2,700 100.00% Unconnected Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 2.0 37 0.1620 0.30 Sheet Flow, Grass: Short n= 0.150 P2= 2.87" 3.0 Direct Entry, Make up to 5 minutes 5.0 37 Total Subcatchment 34oS: Offsite to West South Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)7 6 5 4 3 2 1 0 MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Runoff Area=32,710 sf Runoff Volume=0.320 af Runoff Depth=5.11" Flow Length=37' Slope=0.1620 '/' Tc=5.0 min UI Adjusted CN=WQ 6.69 cfs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 449HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 34S: West Woods Runoff = 7.22 cfs @ 12.16 hrs, Volume= 0.482 af, Depth= 2.39" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Area (ac) CN Description 2.423 55 Woods, Good, HSG B 2.423 55 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 8.4 50 0.0600 0.10 Sheet Flow, Woods: Light underbrush n= 0.400 P2= 2.87" 2.7 218 0.0710 1.33 Shallow Concentrated Flow, Woodland Kv= 5.0 fps 11.1 268 Total Subcatchment 34S: West Woods Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)8 7 6 5 4 3 2 1 0 MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Runoff Area=2.423 ac Runoff Volume=0.482 af Runoff Depth=2.39" Flow Length=268' Tc=11.1 min CN=55 7.22 cfs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 450HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 35S: Southwest Runoff = 8.90 cfs @ 12.26 hrs, Volume= 0.754 af, Depth= 2.39" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Area (ac) CN Description 3.790 55 Woods, Good, HSG B 3.790 55 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 16.0 75 0.0270 0.08 Sheet Flow, Woods: Light underbrush n= 0.400 P2= 2.87" 2.3 195 0.0820 1.43 Shallow Concentrated Flow, Woodland Kv= 5.0 fps 18.3 270 Total Subcatchment 35S: Southwest Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)9 8 7 6 5 4 3 2 1 0 MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Runoff Area=3.790 ac Runoff Volume=0.754 af Runoff Depth=2.39" Flow Length=270' Tc=18.3 min CN=55 8.90 cfs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 451HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 36oS: Southwest Offsite Runoff = 0.41 cfs @ 12.07 hrs, Volume= 0.022 af, Depth= 7.17" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Area (sf) CN Description 1,628 98 Paved parking, HSG D 1,628 98 100.00% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 5.0 Direct Entry, Subcatchment 36oS: Southwest Offsite Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.46 0.44 0.42 0.4 0.38 0.36 0.34 0.32 0.3 0.28 0.26 0.24 0.22 0.2 0.18 0.16 0.14 0.12 0.1 0.08 0.06 0.04 0.02 0 MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Runoff Area=1,628 sf Runoff Volume=0.022 af Runoff Depth=7.17" Tc=5.0 min CN=98 0.41 cfs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 452HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 40.1S: South - East Runoff = 31.69 cfs @ 12.13 hrs, Volume= 2.122 af, Depth= 6.79" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Area (sf) CN Description 29,976 80 >75% Grass cover, Good, HSG D 133,492 98 Paved parking, HSG D 163,468 Weighted Average 29,976 80 18.34% Pervious Area 133,492 98 81.66% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 10.0 Direct Entry, Subcatchment 40.1S: South - East Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)34 32 30 28 26 24 22 20 18 16 14 12 10 8 6 4 2 0 MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Runoff Area=163,468 sf Runoff Volume=2.122 af Runoff Depth=6.79" Tc=10.0 min CN=WQ 31.69 cfs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 453HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 40.2S: South - Central Runoff = 38.45 cfs @ 12.13 hrs, Volume= 2.560 af, Depth= 6.67" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Area (sf) CN Description 47,748 80 >75% Grass cover, Good, HSG D 152,819 98 Paved parking, HSG D 200,567 Weighted Average 47,748 80 23.81% Pervious Area 152,819 98 76.19% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 10.0 Direct Entry, Subcatchment 40.2S: South - Central Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)42 40 38 36 34 32 30 28 26 24 22 20 18 16 14 12 10 8 6 4 2 0 MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Runoff Area=200,567 sf Runoff Volume=2.560 af Runoff Depth=6.67" Tc=10.0 min CN=WQ 38.45 cfs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 454HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 40.3S: South - West Runoff = 43.14 cfs @ 12.13 hrs, Volume= 2.851 af, Depth= 6.53" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Area (sf) CN Description 69,464 80 >75% Grass cover, Good, HSG D * 158,681 98 Paved parking & roofs, HSG D 228,145 Weighted Average 69,464 80 30.45% Pervious Area 158,681 98 69.55% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 10.0 Direct Entry, Subcatchment 40.3S: South - West Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)48 46 44 42 40 38 36 34 32 30 28 26 24 22 20 18 16 14 12 10 8 6 4 2 0 MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Runoff Area=228,145 sf Runoff Volume=2.851 af Runoff Depth=6.53" Tc=10.0 min CN=WQ 43.14 cfs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 455HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 41.1S: South - East Runoff = 13.67 cfs @ 12.13 hrs, Volume= 0.919 af, Depth= 6.86" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Area (sf) CN Description 10,289 80 >75% Grass cover, Good, HSG D 59,695 98 Paved parking, HSG D 69,984 Weighted Average 10,289 80 14.70% Pervious Area 59,695 98 85.30% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 10.0 Direct Entry, Subcatchment 41.1S: South - East Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Runoff Area=69,984 sf Runoff Volume=0.919 af Runoff Depth=6.86" Tc=10.0 min CN=WQ 13.67 cfs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 456HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 41.2S: South - Central Runoff = 30.24 cfs @ 12.13 hrs, Volume= 2.021 af, Depth= 6.75" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Area (sf) CN Description 31,015 80 >75% Grass cover, Good, HSG D 125,404 98 Paved parking, HSG D 156,419 Weighted Average 31,015 80 19.83% Pervious Area 125,404 98 80.17% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 10.0 Direct Entry, Subcatchment 41.2S: South - Central Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)32 30 28 26 24 22 20 18 16 14 12 10 8 6 4 2 0 MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Runoff Area=156,419 sf Runoff Volume=2.021 af Runoff Depth=6.75" Tc=10.0 min CN=WQ 30.24 cfs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 457HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 41.3S: South - west Runoff = 5.94 cfs @ 12.13 hrs, Volume= 0.403 af, Depth= 7.04" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Area (sf) CN Description 1,850 80 >75% Grass cover, Good, HSG D 28,034 98 Paved parking, HSG D 29,884 Weighted Average 1,850 80 6.19% Pervious Area 28,034 98 93.81% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 10.0 Direct Entry, Subcatchment 41.3S: South - west Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)6 5 4 3 2 1 0 MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Runoff Area=29,884 sf Runoff Volume=0.403 af Runoff Depth=7.04" Tc=10.0 min CN=WQ 5.94 cfs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 458HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 42.1S: South Runoff = 8.61 cfs @ 12.07 hrs, Volume= 0.406 af, Depth= 5.07" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Area (sf) CN Description 41,871 80 >75% Grass cover, Good, HSG D 41,871 80 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 5.0 Direct Entry, Subcatchment 42.1S: South Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)9 8 7 6 5 4 3 2 1 0 MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Runoff Area=41,871 sf Runoff Volume=0.406 af Runoff Depth=5.07" Tc=5.0 min CN=80 8.61 cfs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 459HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 42.2S: Southeast Runoff = 5.04 cfs @ 12.07 hrs, Volume= 0.238 af, Depth= 5.07" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Area (sf) CN Description 24,525 80 >75% Grass cover, Good, HSG D 24,525 80 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 5.0 Direct Entry, Subcatchment 42.2S: Southeast Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)5 4 3 2 1 0 MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Runoff Area=24,525 sf Runoff Volume=0.238 af Runoff Depth=5.07" Tc=5.0 min CN=80 5.04 cfs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 460HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 43.1S: East Woods Runoff = 8.28 cfs @ 12.22 hrs, Volume= 0.641 af, Depth= 2.39" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Area (ac) CN Description 3.222 55 Woods, Good, HSG B 3.222 55 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 11.1 75 0.0670 0.11 Sheet Flow, Woods: Light underbrush n= 0.400 P2= 2.87" 4.1 455 0.1380 1.86 Shallow Concentrated Flow, Woodland Kv= 5.0 fps 15.2 530 Total Subcatchment 43.1S: East Woods Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)9 8 7 6 5 4 3 2 1 0 MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Runoff Area=3.222 ac Runoff Volume=0.641 af Runoff Depth=2.39" Flow Length=530' Tc=15.2 min CN=55 8.28 cfs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 461HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 43.2S: Northeast Woods Runoff = 4.24 cfs @ 12.29 hrs, Volume= 0.371 af, Depth= 2.39" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Area (ac) CN Description 1.862 55 Woods, Good, HSG B 1.862 55 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 14.2 100 0.0650 0.12 Sheet Flow, Woods: Light underbrush n= 0.400 P2= 2.87" 5.3 523 0.1080 1.64 Shallow Concentrated Flow, Woodland Kv= 5.0 fps 19.5 623 Total Subcatchment 43.2S: Northeast Woods Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)4 3 2 1 0 MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Runoff Area=1.862 ac Runoff Volume=0.371 af Runoff Depth=2.39" Flow Length=623' Tc=19.5 min CN=55 4.24 cfs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 462HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 44S: North Woods Runoff = 24.95 cfs @ 12.24 hrs, Volume= 2.017 af, Depth= 2.39" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Area (sf) CN Description 441,314 55 Woods, Good, HSG B 441,314 55 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 11.2 75 0.0660 0.11 Sheet Flow, Woods: Light underbrush n= 0.400 P2= 2.87" 5.3 524 0.1090 1.65 Shallow Concentrated Flow, Woodland Kv= 5.0 fps 16.5 599 Total Subcatchment 44S: North Woods Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)26 24 22 20 18 16 14 12 10 8 6 4 2 0 MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Runoff Area=441,314 sf Runoff Volume=2.017 af Runoff Depth=2.39" Flow Length=599' Tc=16.5 min CN=55 24.95 cfs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 463HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 45S: Central - West Runoff = 39.16 cfs @ 12.13 hrs, Volume= 2.532 af, Depth= 6.41" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Area (sf) CN Description 159,000 95 Urban commercial, 85% imp, HSG D 47,303 80 >75% Grass cover, Good, HSG D 206,303 Weighted Average 71,153 79 34.49% Pervious Area 135,150 98 65.51% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 10.0 Direct Entry, Subcatchment 45S: Central - West Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)42 40 38 36 34 32 30 28 26 24 22 20 18 16 14 12 10 8 6 4 2 0 MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Runoff Area=206,303 sf Runoff Volume=2.532 af Runoff Depth=6.41" Tc=10.0 min CN=WQ 39.16 cfs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 464HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 46S: South Townhomes Runoff = 14.82 cfs @ 12.17 hrs, Volume= 1.019 af, Depth= 5.49" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Area (sf) CN Description 19,025 98 Paved parking, HSG D 78,057 80 >75% Grass cover, Good, HSG D 97,082 Weighted Average 78,057 80 80.40% Pervious Area 19,025 98 19.60% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 11.7 92 0.0320 0.13 Sheet Flow, Grass: Dense n= 0.240 P2= 2.87" 0.9 609 0.5200 10.82 Shallow Concentrated Flow, Grassed Waterway Kv= 15.0 fps 12.6 701 Total Subcatchment 46S: South Townhomes Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Runoff Area=97,082 sf Runoff Volume=1.019 af Runoff Depth=5.49" Flow Length=701' Tc=12.6 min CN=WQ 14.82 cfs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 465HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 47S: Bluff Creek Blvd - West Runoff = 24.48 cfs @ 12.07 hrs, Volume= 1.295 af, Depth= 6.77" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Area (ac) CN Description 0.439 80 >75% Grass cover, Good, HSG D 1.856 98 Paved roads w/curbs & sewers, HSG D 2.295 Weighted Average 0.439 80 19.13% Pervious Area 1.856 98 80.87% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 5.0 Direct Entry, Subcatchment 47S: Bluff Creek Blvd - West Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)26 24 22 20 18 16 14 12 10 8 6 4 2 0 MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Runoff Area=2.295 ac Runoff Volume=1.295 af Runoff Depth=6.77" Tc=5.0 min CN=WQ 24.48 cfs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 466HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 48.1S: Direct to 48P (2) Runoff = 17.66 cfs @ 12.13 hrs, Volume= 1.166 af, Depth= 6.50" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Area (sf) CN Description 29,956 80 >75% Grass cover, Good, HSG D 63,765 98 Paved parking, HSG D 93,721 Weighted Average 29,956 80 31.96% Pervious Area 63,765 98 68.04% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 10.0 Direct Entry, Subcatchment 48.1S: Direct to 48P (2) Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Runoff Area=93,721 sf Runoff Volume=1.166 af Runoff Depth=6.50" Tc=10.0 min CN=WQ 17.66 cfs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 467HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 48S: Bluff Creek Blvd - East Runoff = 36.74 cfs @ 12.07 hrs, Volume= 1.944 af, Depth= 6.78" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Area (ac) CN Description 0.642 80 >75% Grass cover, Good, HSG D 2.799 98 Paved roads w/curbs & sewers, HSG D 3.441 Weighted Average 0.642 80 18.66% Pervious Area 2.799 98 81.34% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 5.0 Direct Entry, Subcatchment 48S: Bluff Creek Blvd - East Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)40 38 36 34 32 30 28 26 24 22 20 18 16 14 12 10 8 6 4 2 0 MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Runoff Area=3.441 ac Runoff Volume=1.944 af Runoff Depth=6.78" Tc=5.0 min CN=WQ 36.74 cfs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 468HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Reach 20R: Northwest Drainage [40] Hint: Not Described (Outflow=Inflow) Inflow Area = 15.265 ac, 37.82% Impervious, Inflow Depth = 5.15" for 100y 24hr event Inflow = 23.39 cfs @ 12.83 hrs, Volume= 6.546 af Outflow = 23.39 cfs @ 12.83 hrs, Volume= 6.546 af, Atten= 0%, Lag= 0.0 min Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Reach 20R: Northwest Drainage Inflow Outflow Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)26 24 22 20 18 16 14 12 10 8 6 4 2 0 Inflow Area=15.265 ac 23.39 cfs 23.39 cfs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 469HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Reach 21R: Lower Wetland 6 Inflow Area = 15.265 ac, 37.82% Impervious, Inflow Depth = 5.15" for 100y 24hr event Inflow = 23.44 cfs @ 12.80 hrs, Volume= 6.546 af Outflow = 23.39 cfs @ 12.83 hrs, Volume= 6.546 af, Atten= 0%, Lag= 2.2 min Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Max. Velocity= 1.13 fps, Min. Travel Time= 2.8 min Avg. Velocity = 0.44 fps, Avg. Travel Time= 7.1 min Peak Storage= 3,873 cf @ 12.83 hrs Average Depth at Peak Storage= 0.74' Bank-Full Depth= 5.99' Flow Area= 570.1 sf, Capacity= 3,072.14 cfs Custom cross-section, Length= 187.0' Slope= 0.0053 '/' (102 Elevation Intervals) Constant n= 0.050 Scattered brush, heavy weeds Inlet Invert= 885.00', Outlet Invert= 884.00' ‡ Offset Elevation Chan.Depth (feet) (feet) (feet) 0.00 890.40 0.00 43.10 886.55 3.85 85.60 884.41 5.99 126.20 885.14 5.26 145.10 890.40 0.00 Depth End Area Perim. Storage Discharge (feet) (sq-ft) (feet) (cubic-feet) (cfs) 0.00 0.0 0.0 0 0.00 0.73 20.1 55.1 3,761 22.32 2.14 121.1 88.4 22,648 324.64 5.99 570.1 146.1 106,618 3,072.14 MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 470HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Reach 21R: Lower Wetland 6 Inflow Outflow Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)26 24 22 20 18 16 14 12 10 8 6 4 2 0 Inflow Area=15.265 ac Avg. Flow Depth=0.74' Max Vel=1.13 fps n=0.050 L=187.0' S=0.0053 '/' Capacity=3,072.14 cfs 23.44 cfs 23.39 cfs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 471HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Reach 30R: SW Drainage [40] Hint: Not Described (Outflow=Inflow) Inflow Area = 12.794 ac, 6.62% Impervious, Inflow Depth = 3.97" for 100y 24hr event Inflow = 18.65 cfs @ 12.24 hrs, Volume= 4.232 af Outflow = 18.65 cfs @ 12.24 hrs, Volume= 4.232 af, Atten= 0%, Lag= 0.0 min Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Reach 30R: SW Drainage Inflow Outflow Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 Inflow Area=12.794 ac 18.65 cfs 18.65 cfs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 472HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Reach 35R: Direct Runoff [40] Hint: Not Described (Outflow=Inflow) Inflow Area = 4.375 ac, 2.67% Impervious, Inflow Depth = 2.80" for 100y 24hr event Inflow = 11.58 cfs @ 12.22 hrs, Volume= 1.022 af Outflow = 11.58 cfs @ 12.22 hrs, Volume= 1.022 af, Atten= 0%, Lag= 0.0 min Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Reach 35R: Direct Runoff Inflow Outflow Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)12 11 10 9 8 7 6 5 4 3 2 1 0 Inflow Area=4.375 ac 11.58 cfs 11.58 cfs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 473HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Reach 40R: South Drainage [40] Hint: Not Described (Outflow=Inflow) Inflow Area = 51.070 ac, 48.50% Impervious, Inflow Depth = 4.18" for 100y 24hr event Inflow = 82.03 cfs @ 12.26 hrs, Volume= 17.808 af Outflow = 82.03 cfs @ 12.26 hrs, Volume= 17.808 af, Atten= 0%, Lag= 0.0 min Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Reach 40R: South Drainage Inflow Outflow Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)90 85 80 75 70 65 60 55 50 45 40 35 30 25 20 15 10 5 0 Inflow Area=51.070 ac 82.03 cfs 82.03 cfs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 474HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Reach 42.1R: South [40] Hint: Not Described (Outflow=Inflow) Inflow Area = 9.843 ac, 71.43% Impervious, Inflow Depth = 5.01" for 100y 24hr event Inflow = 21.12 cfs @ 12.27 hrs, Volume= 4.113 af Outflow = 21.12 cfs @ 12.27 hrs, Volume= 4.113 af, Atten= 0%, Lag= 0.0 min Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Reach 42.1R: South Inflow Outflow Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 Inflow Area=9.843 ac 21.12 cfs 21.12 cfs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 475HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Reach 42.2R: Southeast [40] Hint: Not Described (Outflow=Inflow) Inflow Area = 11.515 ac, 75.54% Impervious, Inflow Depth = 4.99" for 100y 24hr event Inflow = 10.54 cfs @ 13.02 hrs, Volume= 4.786 af Outflow = 10.54 cfs @ 13.02 hrs, Volume= 4.786 af, Atten= 0%, Lag= 0.0 min Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Reach 42.2R: Southeast Inflow Outflow Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)11 10 9 8 7 6 5 4 3 2 1 0 Inflow Area=11.515 ac 10.54 cfs 10.54 cfs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 476HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Reach 44R: Wetland 4 Channel [40] Hint: Not Described (Outflow=Inflow) Inflow Area = 26.490 ac, 34.12% Impervious, Inflow Depth = 3.74" for 100y 24hr event Inflow = 43.57 cfs @ 12.26 hrs, Volume= 8.267 af Outflow = 43.57 cfs @ 12.26 hrs, Volume= 8.267 af, Atten= 0%, Lag= 0.0 min Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Reach 44R: Wetland 4 Channel Inflow Outflow Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)48 46 44 42 40 38 36 34 32 30 28 26 24 22 20 18 16 14 12 10 8 6 4 2 0 Inflow Area=26.490 ac 43.57 cfs 43.57 cfs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 477HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Reach 48R: Development to Wetland 4 [40] Hint: Not Described (Outflow=Inflow) Inflow Area = 14.497 ac, 62.34% Impervious, Inflow Depth = 4.87" for 100y 24hr event Inflow = 15.12 cfs @ 12.35 hrs, Volume= 5.880 af Outflow = 15.12 cfs @ 12.35 hrs, Volume= 5.880 af, Atten= 0%, Lag= 0.0 min Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Reach 48R: Development to Wetland 4 Inflow Outflow Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 Inflow Area=14.497 ac 15.12 cfs 15.12 cfs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 478HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Reach 50R: Bluff Creek Drainage [40] Hint: Not Described (Outflow=Inflow) Inflow Area = 79.129 ac, 39.67% Impervious, Inflow Depth = 4.34" for 100y 24hr event Inflow = 112.46 cfs @ 12.26 hrs, Volume= 28.586 af Outflow = 112.46 cfs @ 12.26 hrs, Volume= 28.586 af, Atten= 0%, Lag= 0.0 min Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Reach 50R: Bluff Creek Drainage Inflow Outflow Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)125 120 115 110 105 100 95 90 85 80 75 70 65 60 55 50 45 40 35 30 25 20 15 10 5 0 Inflow Area=79.129 ac 112.46 cfs 112.46 cfs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 479HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Pond 21P: North Basin Inflow Area = 14.040 ac, 40.93% Impervious, Inflow Depth = 5.49" for 100y 24hr event Inflow = 57.02 cfs @ 12.14 hrs, Volume= 6.420 af Outflow = 22.45 cfs @ 12.80 hrs, Volume= 6.420 af, Atten= 61%, Lag= 39.3 min Discarded = 0.16 cfs @ 12.80 hrs, Volume= 0.393 af Primary = 10.97 cfs @ 12.80 hrs, Volume= 5.180 af Secondary = 11.31 cfs @ 12.80 hrs, Volume= 0.848 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 894.37' @ 12.80 hrs Surf.Area= 117,279 sf Storage= 106,653 cf Plug-Flow detention time= 196.7 min calculated for 6.420 af (100% of inflow) Center-of-Mass det. time= 196.8 min ( 1,003.2 - 806.4 ) Volume Invert Avail.Storage Storage Description #1 889.70' 25,434 cf Sand Section (Prismatic) Listed below (Recalc) 85,376 cf Overall - 594 cf Embedded = 84,782 cf x 30.0% Voids #2 892.00' 5,568 cf Topsoil (Prismatic) Listed below (Recalc) 18,560 cf Overall x 30.0% Voids #3 892.50' 150,182 cf Open Pond (Prismatic) Listed below (Recalc) #4 889.70' 594 cf 8.0" Round Pipe Storage Inside #1 L= 1,703.0' 181,778 cf Total Available Storage Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 889.70 37,120 0 0 892.00 37,120 85,376 85,376 Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 892.00 37,120 0 0 892.50 37,120 18,560 18,560 Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 892.50 37,120 0 0 893.00 38,678 18,950 18,950 894.00 41,838 40,258 59,208 895.00 45,055 43,447 102,654 896.00 50,000 47,528 150,182 Device Routing Invert Outlet Devices #1 Primary 889.70'18.0" Round Culvert L= 45.0' RCP, sq.cut end projecting, Ke= 0.500 Inlet / Outlet Invert= 889.70' / 889.38' S= 0.0071 '/' Cc= 0.900 n= 0.011 Concrete pipe, straight & clean, Flow Area= 1.77 sf #2 Device 1 890.50'12.0" Vert. Orifice/Grate C= 0.600 #3 Device 1 892.74'12.0" Vert. Orifice/Grate C= 0.600 #4 Discarded 889.70'0.060 in/hr Exfiltration over Surface area Phase-In= 0.01' MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 480HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC #5 Secondary 894.00'20.0' long x 5.0' breadth Broad-Crested Rectangular Weir Head (feet) 0.20 0.40 0.60 0.80 1.00 1.20 1.40 1.60 1.80 2.00 2.50 3.00 3.50 4.00 4.50 5.00 5.50 Coef. (English) 2.34 2.50 2.70 2.68 2.68 2.66 2.65 2.65 2.65 2.65 2.67 2.66 2.68 2.70 2.74 2.79 2.88 Discarded OutFlow Max=0.16 cfs @ 12.80 hrs HW=894.37' (Free Discharge) 4=Exfiltration (Exfiltration Controls 0.16 cfs) Primary OutFlow Max=10.97 cfs @ 12.80 hrs HW=894.37' TW=885.74' (Dynamic Tailwater) 1=Culvert (Passes 10.97 cfs of 16.85 cfs potential flow) 2=Orifice/Grate (Orifice Controls 6.95 cfs @ 8.84 fps) 3=Orifice/Grate (Orifice Controls 4.03 cfs @ 5.13 fps) Secondary OutFlow Max=11.31 cfs @ 12.80 hrs HW=894.37' TW=885.74' (Dynamic Tailwater) 5=Broad-Crested Rectangular Weir (Weir Controls 11.31 cfs @ 1.51 fps) Pond 21P: North Basin Inflow Outflow Discarded Primary Secondary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)60 55 50 45 40 35 30 25 20 15 10 5 0 Inflow Area=14.040 ac Peak Elev=894.37' Storage=106,653 cf 57.02 cfs 22.45 cfs 0.16 cfs 10.97 cfs 11.31 cfs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 481HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Pond 24P: Northwest Basin Inflow Area = 1.357 ac, 69.40% Impervious, Inflow Depth = 6.53" for 100y 24hr event Inflow = 11.17 cfs @ 12.13 hrs, Volume= 0.738 af Outflow = 3.59 cfs @ 12.41 hrs, Volume= 0.738 af, Atten= 68%, Lag= 16.9 min Discarded = 0.03 cfs @ 12.06 hrs, Volume= 0.097 af Primary = 3.56 cfs @ 12.41 hrs, Volume= 0.642 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 916.40' @ 12.41 hrs Surf.Area= 22,000 sf Storage= 13,529 cf Plug-Flow detention time= 270.8 min calculated for 0.738 af (100% of inflow) Center-of-Mass det. time= 270.9 min ( 1,021.4 - 750.5 ) Volume Invert Avail.Storage Storage Description #1 912.80' 7,537 cf Custom Stage Data (Prismatic) Listed below (Recalc) 25,300 cf Overall - 176 cf Embedded = 25,124 cf x 30.0% Voids #2 915.10' 8,729 cf Custom Stage Data (Prismatic) Listed below (Recalc) 22,000 cf Overall - 176 cf Embedded = 21,824 cf x 40.0% Voids #3 912.80' 176 cf 8.0" Round Pipe Storage Inside #1 L= 505.0' #4 915.10' 176 cf 8.0" Round Pipe Storage Inside #2 L= 505.0' 16,619 cf Total Available Storage Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 912.80 11,000 0 0 915.10 11,000 25,300 25,300 Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 915.10 11,000 0 0 917.10 11,000 22,000 22,000 Device Routing Invert Outlet Devices #1 Primary 912.80'12.0" Round Culvert L= 100.0' RCP, sq.cut end projecting, Ke= 0.500 Inlet / Outlet Invert= 912.80' / 912.10' S= 0.0070 '/' Cc= 0.900 n= 0.011 Concrete pipe, straight & clean, Flow Area= 0.79 sf #2 Device 1 913.60'8.0" Vert. Orifice/Grate C= 0.600 #3 Device 1 915.77'8.0" Vert. Orifice/Grate C= 0.600 #4 Discarded 912.80'0.060 in/hr Exfiltration over Surface area Phase-In= 0.01' Discarded OutFlow Max=0.03 cfs @ 12.06 hrs HW=915.13' (Free Discharge) 4=Exfiltration (Exfiltration Controls 0.03 cfs) Primary OutFlow Max=3.56 cfs @ 12.41 hrs HW=916.40' TW=896.55' (Dynamic Tailwater) 1=Culvert (Passes 3.56 cfs of 5.91 cfs potential flow) 2=Orifice/Grate (Orifice Controls 2.64 cfs @ 7.56 fps) 3=Orifice/Grate (Orifice Controls 0.92 cfs @ 2.70 fps) MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 482HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Pond 24P: Northwest Basin Inflow Outflow Discarded Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)12 11 10 9 8 7 6 5 4 3 2 1 0 Inflow Area=1.357 ac Peak Elev=916.40' Storage=13,529 cf 11.17 cfs 3.59 cfs 0.03 cfs 3.56 cfs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 483HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Pond 25P: West - North Inflow Area = 4.651 ac, 45.17% Impervious, Inflow Depth = 6.02" for 100y 24hr event Inflow = 36.35 cfs @ 12.13 hrs, Volume= 2.334 af Outflow = 16.64 cfs @ 12.32 hrs, Volume= 2.334 af, Atten= 54%, Lag= 11.3 min Discarded = 0.06 cfs @ 12.19 hrs, Volume= 0.139 af Primary = 16.57 cfs @ 12.32 hrs, Volume= 2.195 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 917.39' @ 12.32 hrs Surf.Area= 46,680 sf Storage= 26,341 cf Plug-Flow detention time= 127.0 min calculated for 2.333 af (100% of inflow) Center-of-Mass det. time= 127.1 min ( 885.4 - 758.3 ) Volume Invert Avail.Storage Storage Description #1 912.63' 10,662 cf Custom Stage Data (Prismatic) Listed below (Recalc) 35,788 cf Overall - 249 cf Embedded = 35,539 cf x 30.0% Voids #2 914.93' 12,348 cf Custom Stage Data (Prismatic) Listed below (Recalc) 31,120 cf Overall - 249 cf Embedded = 30,871 cf x 40.0% Voids #3 916.93' 9,772 cf Custom Stage Data (Prismatic) Listed below (Recalc) 24,429 cf Overall x 40.0% Voids #4 912.63' 249 cf 8.0" Round Pipe Storage Inside #1 L= 714.0' #5 914.93' 249 cf 8.0" Round Pipe Storage Inside #2 L= 714.0' 33,280 cf Total Available Storage Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 912.63 15,560 0 0 914.93 15,560 35,788 35,788 Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 914.93 15,560 0 0 916.93 15,560 31,120 31,120 Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 916.93 15,560 0 0 918.50 15,560 24,429 24,429 Device Routing Invert Outlet Devices #1 Primary 912.63'18.0" Round Culvert L= 153.0' RCP, sq.cut end projecting, Ke= 0.500 Inlet / Outlet Invert= 912.63' / 911.10' S= 0.0100 '/' Cc= 0.900 n= 0.011 Concrete pipe, straight & clean, Flow Area= 1.77 sf #2 Device 1 913.43'18.0" Vert. Orifice/Grate C= 0.600 #3 Device 1 915.67'18.0" Vert. Orifice/Grate C= 0.600 #4 Discarded 912.63'0.060 in/hr Exfiltration over Surface area Phase-In= 0.01' MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 484HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Discarded OutFlow Max=0.06 cfs @ 12.19 hrs HW=916.95' (Free Discharge) 4=Exfiltration (Exfiltration Controls 0.06 cfs) Primary OutFlow Max=16.57 cfs @ 12.32 hrs HW=917.39' TW=899.16' (Dynamic Tailwater) 1=Culvert (Barrel Controls 16.57 cfs @ 9.38 fps) 2=Orifice/Grate (Passes < 15.23 cfs potential flow) 3=Orifice/Grate (Passes < 8.36 cfs potential flow) Pond 25P: West - North Inflow Outflow Discarded Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)40 38 36 34 32 30 28 26 24 22 20 18 16 14 12 10 8 6 4 2 0 Inflow Area=4.651 ac Peak Elev=917.39' Storage=26,341 cf 36.35 cfs 16.64 cfs 0.06 cfs 16.57 cfs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 485HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Pond 28P: Avienda Pkwy - NW Basin Inflow Area = 2.793 ac, 66.00% Impervious, Inflow Depth = 6.46" for 100y 24hr event Inflow = 18.94 cfs @ 12.19 hrs, Volume= 1.503 af Outflow = 3.50 cfs @ 12.81 hrs, Volume= 1.503 af, Atten= 81%, Lag= 36.8 min Discarded = 0.09 cfs @ 12.16 hrs, Volume= 0.285 af Primary = 3.42 cfs @ 12.81 hrs, Volume= 1.218 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 913.32' @ 12.81 hrs Surf.Area= 61,812 sf Storage= 37,950 cf Plug-Flow detention time= 443.4 min calculated for 1.503 af (100% of inflow) Center-of-Mass det. time= 443.4 min ( 1,199.6 - 756.1 ) Volume Invert Avail.Storage Storage Description #1 909.73' 21,177 cf Custom Stage Data (Prismatic) Listed below (Recalc) 71,084 cf Overall - 495 cf Embedded = 70,589 cf x 30.0% Voids #2 912.03' 24,527 cf Custom Stage Data (Prismatic) Listed below (Recalc) 61,812 cf Overall - 495 cf Embedded = 61,317 cf x 40.0% Voids #3 909.73' 495 cf 8.0" Round Pipe Storage Inside #1 L= 1,418.0' #4 912.03' 495 cf 8.0" Round Pipe Storage Inside #2 L= 1,418.0' 46,693 cf Total Available Storage Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 909.73 30,906 0 0 912.03 30,906 71,084 71,084 Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 912.03 30,906 0 0 914.03 30,906 61,812 61,812 Device Routing Invert Outlet Devices #1 Primary 909.73'12.0" Round Culvert L= 148.0' RCP, sq.cut end projecting, Ke= 0.500 Inlet / Outlet Invert= 909.73' / 908.25' S= 0.0100 '/' Cc= 0.900 n= 0.011 Concrete pipe, straight & clean, Flow Area= 0.79 sf #2 Device 1 910.53'8.0" Vert. Orifice/Grate C= 0.600 #3 Device 1 912.77'8.0" Vert. Orifice/Grate C= 0.600 #4 Discarded 909.73'0.060 in/hr Exfiltration over Surface area Phase-In= 0.01' Discarded OutFlow Max=0.09 cfs @ 12.16 hrs HW=912.06' (Free Discharge) 4=Exfiltration (Exfiltration Controls 0.09 cfs) Primary OutFlow Max=3.42 cfs @ 12.81 hrs HW=913.32' TW=896.10' (Dynamic Tailwater) 1=Culvert (Passes 3.42 cfs of 5.79 cfs potential flow) 2=Orifice/Grate (Orifice Controls 2.64 cfs @ 7.55 fps) 3=Orifice/Grate (Orifice Controls 0.78 cfs @ 2.53 fps) MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 486HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Pond 28P: Avienda Pkwy - NW Basin Inflow Outflow Discarded Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 Inflow Area=2.793 ac Peak Elev=913.32' Storage=37,950 cf 18.94 cfs 3.50 cfs 0.09 cfs 3.42 cfs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 487HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Pond 31P: West South Basin Inflow Area = 0.754 ac, 22.84% Impervious, Inflow Depth = 5.55" for 100y 24hr event Inflow = 4.70 cfs @ 12.20 hrs, Volume= 0.349 af Outflow = 2.74 cfs @ 12.38 hrs, Volume= 0.349 af, Atten= 42%, Lag= 11.1 min Discarded = 0.01 cfs @ 12.38 hrs, Volume= 0.021 af Primary = 2.73 cfs @ 12.38 hrs, Volume= 0.328 af Secondary = 0.00 cfs @ 0.00 hrs, Volume= 0.000 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 924.15' @ 12.38 hrs Surf.Area= 7,679 sf Storage= 3,179 cf Plug-Flow detention time= 115.1 min calculated for 0.349 af (100% of inflow) Center-of-Mass det. time= 115.1 min ( 886.2 - 771.1 ) Volume Invert Avail.Storage Storage Description #1 920.93' 1,671 cf Sand Setion (Prismatic) Listed below (Recalc) 5,614 cf Overall - 44 cf Embedded = 5,571 cf x 30.0% Voids #2 923.23' 366 cf Topsoil (Prismatic) Listed below (Recalc) 1,221 cf Overall x 30.0% Voids #3 923.73' 11,497 cf Open pond (Prismatic) Listed below (Recalc) #4 920.93' 44 cf 8.0" Round Pipe Storage Inside #1 L= 125.0' 13,578 cf Total Available Storage Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 920.93 2,441 0 0 923.23 2,441 5,614 5,614 Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 923.23 2,441 0 0 923.73 2,441 1,221 1,221 Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 923.73 2,441 0 0 926.60 4,878 10,503 10,503 926.70 15,000 994 11,497 Device Routing Invert Outlet Devices #1 Primary 920.93'12.0" Round Culvert L= 46.0' RCP, sq.cut end projecting, Ke= 0.500 Inlet / Outlet Invert= 920.93' / 920.80' S= 0.0028 '/' Cc= 0.900 n= 0.011 Concrete pipe, straight & clean, Flow Area= 0.79 sf #2 Device 1 921.73'8.0" Vert. Orifice/Grate C= 0.600 #3 Device 1 923.84'8.0" Vert. Orifice/Grate C= 0.600 #4 Secondary 925.60'20.0' long x 5.0' breadth Broad-Crested Rectangular Weir Head (feet) 0.20 0.40 0.60 0.80 1.00 1.20 1.40 1.60 1.80 2.00 2.50 3.00 3.50 4.00 4.50 5.00 5.50 MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 488HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Coef. (English) 2.34 2.50 2.70 2.68 2.68 2.66 2.65 2.65 2.65 2.65 2.67 2.66 2.68 2.70 2.74 2.79 2.88 #5 Discarded 920.93'0.060 in/hr Exfiltration over Horizontal area Phase-In= 0.01' Discarded OutFlow Max=0.01 cfs @ 12.38 hrs HW=924.15' (Free Discharge) 5=Exfiltration (Exfiltration Controls 0.01 cfs) Primary OutFlow Max=2.73 cfs @ 12.38 hrs HW=924.15' TW=921.89' (Dynamic Tailwater) 1=Culvert (Passes 2.73 cfs of 5.68 cfs potential flow) 2=Orifice/Grate (Orifice Controls 2.43 cfs @ 6.95 fps) 3=Orifice/Grate (Orifice Controls 0.30 cfs @ 1.89 fps) Secondary OutFlow Max=0.00 cfs @ 0.00 hrs HW=920.93' TW=920.58' (Dynamic Tailwater) 4=Broad-Crested Rectangular Weir ( Controls 0.00 cfs) Pond 31P: West South Basin Inflow Outflow Discarded Primary Secondary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)5 4 3 2 1 0 Inflow Area=0.754 ac Peak Elev=924.15' Storage=3,179 cf 4.70 cfs 2.74 cfs 0.01 cfs 2.73 cfs 0.00 cfs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 489HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Pond 32P: Drop MH [57] Hint: Peaked at 899.16' (Flood elevation advised) Inflow Area = 4.651 ac, 45.17% Impervious, Inflow Depth = 5.66" for 100y 24hr event Inflow = 16.57 cfs @ 12.32 hrs, Volume= 2.195 af Outflow = 16.57 cfs @ 12.32 hrs, Volume= 2.195 af, Atten= 0%, Lag= 0.0 min Primary = 16.57 cfs @ 12.32 hrs, Volume= 2.195 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 899.16' @ 12.32 hrs Device Routing Invert Outlet Devices #1 Primary 894.50'18.0" Round Culvert L= 90.0' RCP, sq.cut end projecting, Ke= 0.500 Inlet / Outlet Invert= 894.50' / 894.00' S= 0.0056 '/' Cc= 0.900 n= 0.011 Concrete pipe, straight & clean, Flow Area= 1.77 sf Primary OutFlow Max=16.57 cfs @ 12.32 hrs HW=899.16' TW=893.75' (Dynamic Tailwater) 1=Culvert (Barrel Controls 16.57 cfs @ 9.38 fps) Pond 32P: Drop MH Inflow Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 Inflow Area=4.651 ac Peak Elev=899.16' 18.0" Round Culvert n=0.011 L=90.0' S=0.0056 '/' 16.57 cfs 16.57 cfs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 490HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Pond 33P: Wetland 3 Inflow Area = 5.208 ac, 12.12% Impervious, Inflow Depth = 5.50" for 100y 24hr event Inflow = 34.25 cfs @ 12.11 hrs, Volume= 2.386 af Outflow = 5.65 cfs @ 13.00 hrs, Volume= 2.386 af, Atten= 83%, Lag= 53.2 min Primary = 3.67 cfs @ 13.00 hrs, Volume= 2.215 af Secondary = 1.99 cfs @ 13.00 hrs, Volume= 0.171 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 922.02' @ 13.00 hrs Surf.Area= 68,876 sf Storage= 56,825 cf Plug-Flow detention time= 186.6 min calculated for 2.386 af (100% of inflow) Center-of-Mass det. time= 187.2 min ( 955.7 - 768.5 ) Volume Invert Avail.Storage Storage Description #1 920.58' 140,121 cf Custom Stage Data (Prismatic) Listed below (Recalc) Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 920.58 100 0 0 921.00 30,000 6,321 6,321 922.00 68,200 49,100 55,421 923.00 101,200 84,700 140,121 Device Routing Invert Outlet Devices #1 Primary 920.58'12.0" Round Culvert L= 455.0' RCP, end-section conforming to fill, Ke= 0.500 Inlet / Outlet Invert= 920.58' / 911.02' S= 0.0210 '/' Cc= 0.900 n= 0.013 Concrete pipe, straight & clean, Flow Area= 0.79 sf #2 Secondary 921.90'Asymmetrical Weir, C= 3.27 Offset (feet) 0.00 19.00 40.00 50.00 76.00 103.00 Height (feet) 1.50 0.50 0.00 0.00 0.50 1.50 Primary OutFlow Max=3.67 cfs @ 13.00 hrs HW=922.02' TW=909.04' (Dynamic Tailwater) 1=Culvert (Inlet Controls 3.67 cfs @ 4.67 fps) Secondary OutFlow Max=1.99 cfs @ 13.00 hrs HW=922.02' TW=0.00' (Dynamic Tailwater) 2=Asymmetrical Weir (Weir Controls 1.99 cfs @ 0.77 fps) MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 491HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Pond 33P: Wetland 3 Inflow Outflow Primary Secondary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)38 36 34 32 30 28 26 24 22 20 18 16 14 12 10 8 6 4 2 0 Inflow Area=5.208 ac Peak Elev=922.02' Storage=56,825 cf 34.25 cfs 5.65 cfs 3.67 cfs 1.99 cfs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 492HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Pond 34P: West - South (existing) Inflow Area = 8.382 ac, 8.27% Impervious, Inflow Depth = 4.32" for 100y 24hr event Inflow = 14.32 cfs @ 12.11 hrs, Volume= 3.017 af Outflow = 7.43 cfs @ 12.57 hrs, Volume= 3.017 af, Atten= 48%, Lag= 27.8 min Primary = 7.43 cfs @ 12.57 hrs, Volume= 3.017 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 909.20' @ 12.57 hrs Surf.Area= 0.250 ac Storage= 0.206 af Plug-Flow detention time= (not calculated: outflow precedes inflow) Center-of-Mass det. time= 9.1 min ( 931.2 - 922.1 ) Volume Invert Avail.Storage Storage Description #1 907.00' 1.603 af Custom Stage Data (Prismatic) Listed below (Recalc) Elevation Surf.Area Inc.Store Cum.Store (feet) (acres) (acre-feet) (acre-feet) 907.00 0.000 0.000 0.000 908.00 0.055 0.028 0.028 909.00 0.208 0.131 0.159 910.00 0.413 0.310 0.469 911.00 0.573 0.493 0.962 912.00 0.709 0.641 1.603 Device Routing Invert Outlet Devices #1 Primary 907.00'15.0" Round Culvert L= 48.8' RCP, end-section conforming to fill, Ke= 0.500 Inlet / Outlet Invert= 907.00' / 906.00' S= 0.0205 '/' Cc= 0.900 n= 0.013 Concrete pipe, straight & clean, Flow Area= 1.23 sf #2 Primary 911.22'Asymmetrical Weir, C= 3.27 Offset (feet) 0.00 12.00 18.00 28.00 49.00 88.00 Height (feet) 1.35 0.02 0.00 0.15 0.70 1.35 Primary OutFlow Max=7.43 cfs @ 12.57 hrs HW=909.20' TW=0.00' (Dynamic Tailwater) 1=Culvert (Inlet Controls 7.43 cfs @ 6.05 fps) 2=Asymmetrical Weir ( Controls 0.00 cfs) MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 493HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Pond 34P: West - South (existing) Inflow Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 Inflow Area=8.382 ac Peak Elev=909.20' Storage=0.206 af 14.32 cfs 7.43 cfs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 494HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Pond 35P: Drop MH [57] Hint: Peaked at 896.55' (Flood elevation advised) Inflow Area = 1.357 ac, 69.40% Impervious, Inflow Depth = 5.67" for 100y 24hr event Inflow = 3.56 cfs @ 12.41 hrs, Volume= 0.642 af Outflow = 3.56 cfs @ 12.41 hrs, Volume= 0.642 af, Atten= 0%, Lag= 0.0 min Primary = 3.56 cfs @ 12.41 hrs, Volume= 0.642 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 896.55' @ 12.41 hrs Device Routing Invert Outlet Devices #1 Primary 894.80'12.0" Round Culvert L= 150.0' RCP, sq.cut end projecting, Ke= 0.500 Inlet / Outlet Invert= 894.80' / 894.00' S= 0.0053 '/' Cc= 0.900 n= 0.011 Concrete pipe, straight & clean, Flow Area= 0.79 sf Primary OutFlow Max=3.56 cfs @ 12.41 hrs HW=896.55' TW=893.98' (Dynamic Tailwater) 1=Culvert (Barrel Controls 3.56 cfs @ 4.53 fps) Pond 35P: Drop MH Inflow Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)3 2 1 0 Inflow Area=1.357 ac Peak Elev=896.55' 12.0" Round Culvert n=0.011 L=150.0' S=0.0053 '/' 3.56 cfs 3.56 cfs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 495HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Pond 36P: Drop MH [57] Hint: Peaked at 896.10' (Flood elevation advised) Inflow Area = 2.793 ac, 66.00% Impervious, Inflow Depth = 5.23" for 100y 24hr event Inflow = 3.42 cfs @ 12.81 hrs, Volume= 1.218 af Outflow = 3.42 cfs @ 12.81 hrs, Volume= 1.218 af, Atten= 0%, Lag= 0.0 min Primary = 3.42 cfs @ 12.81 hrs, Volume= 1.218 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 896.10' @ 12.81 hrs Device Routing Invert Outlet Devices #1 Primary 894.50'12.0" Round Culvert L= 100.0' RCP, sq.cut end projecting, Ke= 0.500 Inlet / Outlet Invert= 894.50' / 894.00' S= 0.0050 '/' Cc= 0.900 n= 0.011 Concrete pipe, straight & clean, Flow Area= 0.79 sf Primary OutFlow Max=3.42 cfs @ 12.81 hrs HW=896.10' TW=894.37' (Dynamic Tailwater) 1=Culvert (Barrel Controls 3.42 cfs @ 4.35 fps) Pond 36P: Drop MH Inflow Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)3 2 1 0 Inflow Area=2.793 ac Peak Elev=896.10' 12.0" Round Culvert n=0.011 L=100.0' S=0.0050 '/' 3.42 cfs 3.42 cfs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 496HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Pond 40.1P: South East Inflow Area = 3.753 ac, 81.66% Impervious, Inflow Depth = 6.79" for 100y 24hr event Inflow = 31.69 cfs @ 12.13 hrs, Volume= 2.122 af Outflow = 3.51 cfs @ 13.12 hrs, Volume= 2.122 af, Atten= 89%, Lag= 59.2 min Discarded = 0.14 cfs @ 12.12 hrs, Volume= 0.496 af Primary = 3.37 cfs @ 13.12 hrs, Volume= 1.626 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 897.13' @ 13.12 hrs Surf.Area= 102,096 sf Storage= 59,401 cf Plug-Flow detention time= 584.2 min calculated for 2.122 af (100% of inflow) Center-of-Mass det. time= 584.2 min ( 1,331.2 - 747.0 ) Volume Invert Avail.Storage Storage Description #1 893.70' 34,978 cf Custom Stage Data (Prismatic) Listed below (Recalc) 117,410 cf Overall - 818 cf Embedded = 116,593 cf x 30.0% Voids #2 896.00' 40,511 cf Custom Stage Data (Prismatic) Listed below (Recalc) 102,096 cf Overall - 818 cf Embedded = 101,278 cf x 40.0% Voids #3 893.70' 818 cf 8.0" Round Pipe Storage Inside #1 L= 2,343.0' #4 896.00' 818 cf 8.0" Round Pipe Storage Inside #2 L= 2,343.0' 77,125 cf Total Available Storage Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 893.70 51,048 0 0 896.00 51,048 117,410 117,410 Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 896.00 51,048 0 0 898.00 51,048 102,096 102,096 Device Routing Invert Outlet Devices #1 Primary 893.70'12.0" Round Culvert L= 260.0' RCP, sq.cut end projecting, Ke= 0.500 Inlet / Outlet Invert= 893.70' / 891.88' S= 0.0070 '/' Cc= 0.900 n= 0.011 Concrete pipe, straight & clean, Flow Area= 0.79 sf #2 Device 1 894.50'8.0" Vert. Orifice/Grate C= 0.600 #3 Device 1 896.67'12.0" Vert. Orifice/Grate C= 0.600 #4 Discarded 893.70'0.060 in/hr Exfiltration over Surface area Phase-In= 0.01' Discarded OutFlow Max=0.14 cfs @ 12.12 hrs HW=896.01' (Free Discharge) 4=Exfiltration (Exfiltration Controls 0.14 cfs) Primary OutFlow Max=3.37 cfs @ 13.12 hrs HW=897.13' TW=0.00' (Dynamic Tailwater) 1=Culvert (Passes 3.37 cfs of 4.80 cfs potential flow) 2=Orifice/Grate (Orifice Controls 2.55 cfs @ 7.30 fps) 3=Orifice/Grate (Orifice Controls 0.82 cfs @ 2.31 fps) MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 497HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Pond 40.1P: South East Inflow Outflow Discarded Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)34 32 30 28 26 24 22 20 18 16 14 12 10 8 6 4 2 0 Inflow Area=3.753 ac Peak Elev=897.13' Storage=59,401 cf 31.69 cfs 3.51 cfs 0.14 cfs 3.37 cfs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 498HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Pond 40.2P: South Central Inflow Area = 4.604 ac, 76.19% Impervious, Inflow Depth = 6.67" for 100y 24hr event Inflow = 38.45 cfs @ 12.13 hrs, Volume= 2.560 af Outflow = 2.33 cfs @ 13.65 hrs, Volume= 2.560 af, Atten= 94%, Lag= 91.3 min Discarded = 0.26 cfs @ 12.40 hrs, Volume= 0.947 af Primary = 2.07 cfs @ 13.65 hrs, Volume= 1.613 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 897.65' @ 13.65 hrs Surf.Area= 188,626 sf Storage= 79,999 cf Plug-Flow detention time= 923.0 min calculated for 2.560 af (100% of inflow) Center-of-Mass det. time= 923.1 min ( 1,671.6 - 748.5 ) Volume Invert Avail.Storage Storage Description #1 895.00' 64,623 cf Custom Stage Data (Prismatic) Listed below (Recalc) 216,920 cf Overall - 1,511 cf Embedded = 215,409 cf x 30.0% Voids #2 897.30' 74,846 cf Custom Stage Data (Prismatic) Listed below (Recalc) 188,626 cf Overall - 1,511 cf Embedded = 187,115 cf x 40.0% Voids #3 895.00' 1,511 cf 8.0" Round Pipe Storage Inside #1 L= 4,328.0' #4 897.30' 1,511 cf 8.0" Round Pipe Storage Inside #2 L= 4,328.0' 142,490 cf Total Available Storage Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 895.00 94,313 0 0 897.30 94,313 216,920 216,920 Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 897.30 94,313 0 0 899.30 94,313 188,626 188,626 Device Routing Invert Outlet Devices #1 Primary 895.00'12.0" Round Culvert L= 250.0' RCP, sq.cut end projecting, Ke= 0.500 Inlet / Outlet Invert= 895.00' / 893.25' S= 0.0070 '/' Cc= 0.900 n= 0.011 Concrete pipe, straight & clean, Flow Area= 0.79 sf #2 Device 1 895.80'8.0" Vert. Orifice/Grate C= 0.600 #3 Device 1 897.97'8.0" Vert. Orifice/Grate C= 0.600 #4 Discarded 895.00'0.060 in/hr Exfiltration over Surface area Phase-In= 0.01' Discarded OutFlow Max=0.26 cfs @ 12.40 hrs HW=897.30' (Free Discharge) 4=Exfiltration (Exfiltration Controls 0.26 cfs) Primary OutFlow Max=2.07 cfs @ 13.65 hrs HW=897.65' TW=0.00' (Dynamic Tailwater) 1=Culvert (Passes 2.07 cfs of 4.36 cfs potential flow) 2=Orifice/Grate (Orifice Controls 2.07 cfs @ 5.94 fps) 3=Orifice/Grate ( Controls 0.00 cfs) MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 499HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Pond 40.2P: South Central Inflow Outflow Discarded Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)42 40 38 36 34 32 30 28 26 24 22 20 18 16 14 12 10 8 6 4 2 0 Inflow Area=4.604 ac Peak Elev=897.65' Storage=79,999 cf 38.45 cfs 2.33 cfs 0.26 cfs2.07 cfs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 500HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Pond 40.3P: South Inflow Area = 5.237 ac, 69.55% Impervious, Inflow Depth = 6.53" for 100y 24hr event Inflow = 43.14 cfs @ 12.13 hrs, Volume= 2.851 af Outflow = 4.24 cfs @ 13.18 hrs, Volume= 2.851 af, Atten= 90%, Lag= 63.0 min Discarded = 0.17 cfs @ 12.09 hrs, Volume= 0.613 af Primary = 4.07 cfs @ 13.18 hrs, Volume= 2.238 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 901.39' @ 13.18 hrs Surf.Area= 120,464 sf Storage= 81,048 cf Plug-Flow detention time= 587.7 min calculated for 2.851 af (100% of inflow) Center-of-Mass det. time= 587.8 min ( 1,338.2 - 750.4 ) Volume Invert Avail.Storage Storage Description #1 897.50' 41,271 cf Custom Stage Data (Prismatic) Listed below (Recalc) 138,534 cf Overall - 965 cf Embedded = 137,569 cf x 30.0% Voids #2 899.80' 47,800 cf Custom Stage Data (Prismatic) Listed below (Recalc) 120,464 cf Overall - 965 cf Embedded = 119,499 cf x 40.0% Voids #3 897.50' 965 cf 8.0" Round Pipe Storage Inside #1 L= 2,764.0' #4 899.80' 965 cf 8.0" Round Pipe Storage Inside #2 L= 2,764.0' 91,000 cf Total Available Storage Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 897.50 60,232 0 0 899.80 60,232 138,534 138,534 Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 899.80 60,232 0 0 901.80 60,232 120,464 120,464 Device Routing Invert Outlet Devices #1 Primary 897.50'12.0" Round Culvert L= 175.0' RCP, sq.cut end projecting, Ke= 0.500 Inlet / Outlet Invert= 897.50' / 896.27' S= 0.0070 '/' Cc= 0.900 n= 0.011 Concrete pipe, straight & clean, Flow Area= 0.79 sf #2 Device 1 898.30'8.0" Vert. Orifice/Grate C= 0.600 #3 Device 1 900.47'8.0" Vert. Orifice/Grate C= 0.600 #4 Discarded 897.50'0.060 in/hr Exfiltration over Surface area Phase-In= 0.01' Discarded OutFlow Max=0.17 cfs @ 12.09 hrs HW=899.84' (Free Discharge) 4=Exfiltration (Exfiltration Controls 0.17 cfs) Primary OutFlow Max=4.07 cfs @ 13.18 hrs HW=901.39' TW=0.00' (Dynamic Tailwater) 1=Culvert (Passes 4.07 cfs of 5.49 cfs potential flow) 2=Orifice/Grate (Orifice Controls 2.79 cfs @ 7.99 fps) 3=Orifice/Grate (Orifice Controls 1.28 cfs @ 3.68 fps) MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 501HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Pond 40.3P: South Inflow Outflow Discarded Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)45 40 35 30 25 20 15 10 5 0 Inflow Area=5.237 ac Peak Elev=901.39' Storage=81,048 cf 43.14 cfs 4.24 cfs 0.17 cfs 4.07 cfs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 502HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Pond 41.1P: South East Inflow Area = 1.607 ac, 85.30% Impervious, Inflow Depth = 6.86" for 100y 24hr event Inflow = 13.67 cfs @ 12.13 hrs, Volume= 0.919 af Outflow = 1.50 cfs @ 13.12 hrs, Volume= 0.919 af, Atten= 89%, Lag= 59.3 min Discarded = 0.06 cfs @ 6.75 hrs, Volume= 0.385 af Primary = 1.44 cfs @ 13.12 hrs, Volume= 0.534 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 889.87' @ 13.12 hrs Surf.Area= 45,024 sf Storage= 25,738 cf Plug-Flow detention time= 850.9 min calculated for 0.919 af (100% of inflow) Center-of-Mass det. time= 851.0 min ( 1,596.9 - 746.0 ) Volume Invert Avail.Storage Storage Description #1 888.00' 30,850 cf Custom Stage Data (Prismatic) Listed below (Recalc) 103,555 cf Overall - 721 cf Embedded = 102,834 cf x 30.0% Voids #2 890.30' 35,731 cf Custom Stage Data (Prismatic) Listed below (Recalc) 90,048 cf Overall - 721 cf Embedded = 89,327 cf x 40.0% Voids #3 888.00' 721 cf 8.0" Round Pipe Storage Inside #1 L= 2,066.0' #4 890.30' 721 cf 8.0" Round Pipe Storage Inside #2 L= 2,066.0' 68,023 cf Total Available Storage Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 888.00 45,024 0 0 890.30 45,024 103,555 103,555 Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 890.30 45,024 0 0 892.30 45,024 90,048 90,048 Device Routing Invert Outlet Devices #1 Primary 888.00'12.0" Round Culvert L= 70.0' RCP, sq.cut end projecting, Ke= 0.500 Inlet / Outlet Invert= 888.00' / 887.51' S= 0.0070 '/' Cc= 0.900 n= 0.011 Concrete pipe, straight & clean, Flow Area= 0.79 sf #2 Device 1 888.80'8.0" Vert. Orifice/Grate C= 0.600 #3 Device 1 890.97'8.0" Vert. Orifice/Grate C= 0.600 #4 Discarded 888.00'0.060 in/hr Exfiltration over Surface area Phase-In= 0.01' Discarded OutFlow Max=0.06 cfs @ 6.75 hrs HW=888.01' (Free Discharge) 4=Exfiltration (Exfiltration Controls 0.06 cfs) Primary OutFlow Max=1.44 cfs @ 13.12 hrs HW=889.87' TW=0.00' (Dynamic Tailwater) 1=Culvert (Passes 1.44 cfs of 4.19 cfs potential flow) 2=Orifice/Grate (Orifice Controls 1.44 cfs @ 4.13 fps) 3=Orifice/Grate ( Controls 0.00 cfs) MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 503HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Pond 41.1P: South East Inflow Outflow Discarded Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 Inflow Area=1.607 ac Peak Elev=889.87' Storage=25,738 cf 13.67 cfs 1.50 cfs 0.06 cfs 1.44 cfs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 504HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Pond 41.2P: South Central Inflow Area = 3.591 ac, 80.17% Impervious, Inflow Depth = 6.75" for 100y 24hr event Inflow = 30.24 cfs @ 12.13 hrs, Volume= 2.021 af Outflow = 15.92 cfs @ 12.28 hrs, Volume= 2.021 af, Atten= 47%, Lag= 8.7 min Discarded = 0.05 cfs @ 11.93 hrs, Volume= 0.150 af Primary = 15.88 cfs @ 12.28 hrs, Volume= 1.871 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 885.73' @ 12.28 hrs Surf.Area= 33,574 sf Storage= 24,905 cf Plug-Flow detention time= 159.5 min calculated for 2.021 af (100% of inflow) Center-of-Mass det. time= 159.6 min ( 907.0 - 747.4 ) Volume Invert Avail.Storage Storage Description #1 881.50' 11,502 cf Custom Stage Data (Prismatic) Listed below (Recalc) 38,610 cf Overall - 269 cf Embedded = 38,341 cf x 30.0% Voids #2 883.80' 13,322 cf Custom Stage Data (Prismatic) Listed below (Recalc) 33,574 cf Overall - 269 cf Embedded = 33,305 cf x 40.0% Voids #3 881.50' 269 cf 8.0" Round Pipe Storage Inside #1 L= 770.0' #4 883.80' 269 cf 8.0" Round Pipe Storage Inside #2 L= 770.0' 25,362 cf Total Available Storage Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 881.50 16,787 0 0 883.80 16,787 38,610 38,610 Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 883.80 16,787 0 0 885.80 16,787 33,574 33,574 Device Routing Invert Outlet Devices #1 Primary 881.50'18.0" Round Culvert L= 22.0' RCP, sq.cut end projecting, Ke= 0.500 Inlet / Outlet Invert= 881.50' / 881.28' S= 0.0100 '/' Cc= 0.900 n= 0.011 Concrete pipe, straight & clean, Flow Area= 1.77 sf #2 Device 1 882.30'15.0" Vert. Orifice/Grate C= 0.600 #3 Device 1 884.47'18.0" Vert. Orifice/Grate C= 0.600 #4 Discarded 881.50'0.060 in/hr Exfiltration over Surface area Phase-In= 0.01' Discarded OutFlow Max=0.05 cfs @ 11.93 hrs HW=883.82' (Free Discharge) 4=Exfiltration (Exfiltration Controls 0.05 cfs) Primary OutFlow Max=15.88 cfs @ 12.28 hrs HW=885.73' TW=0.00' (Dynamic Tailwater) 1=Culvert (Inlet Controls 15.88 cfs @ 8.98 fps) 2=Orifice/Grate (Passes < 9.90 cfs potential flow) 3=Orifice/Grate (Passes < 6.07 cfs potential flow) MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 505HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Pond 41.2P: South Central Inflow Outflow Discarded Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)32 30 28 26 24 22 20 18 16 14 12 10 8 6 4 2 0 Inflow Area=3.591 ac Peak Elev=885.73' Storage=24,905 cf 30.24 cfs 15.92 cfs 0.05 cfs 15.88 cfs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 506HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Pond 41.3P: South West Inflow Area = 0.686 ac, 93.81% Impervious, Inflow Depth = 7.04" for 100y 24hr event Inflow = 5.94 cfs @ 12.13 hrs, Volume= 0.403 af Outflow = 1.10 cfs @ 12.64 hrs, Volume= 0.403 af, Atten= 82%, Lag= 30.7 min Discarded = 0.03 cfs @ 6.81 hrs, Volume= 0.180 af Primary = 1.07 cfs @ 12.64 hrs, Volume= 0.223 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 891.29' @ 12.64 hrs Surf.Area= 22,024 sf Storage= 10,393 cf Plug-Flow detention time= 822.7 min calculated for 0.403 af (100% of inflow) Center-of-Mass det. time= 822.7 min ( 1,566.4 - 743.8 ) Volume Invert Avail.Storage Storage Description #1 889.75' 15,091 cf Custom Stage Data (Prismatic) Listed below (Recalc) 50,655 cf Overall - 353 cf Embedded = 50,303 cf x 30.0% Voids #2 892.05' 17,478 cf Custom Stage Data (Prismatic) Listed below (Recalc) 44,048 cf Overall - 353 cf Embedded = 43,695 cf x 40.0% Voids #3 889.75' 353 cf 8.0" Round Pipe Storage Inside #1 L= 1,010.0' #4 892.05' 353 cf 8.0" Round Pipe Storage Inside #2 L= 1,010.0' 33,274 cf Total Available Storage Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 889.75 22,024 0 0 892.05 22,024 50,655 50,655 Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 892.05 22,024 0 0 894.05 22,024 44,048 44,048 Device Routing Invert Outlet Devices #1 Primary 889.75'12.0" Round Culvert L= 45.0' RCP, sq.cut end projecting, Ke= 0.500 Inlet / Outlet Invert= 889.75' / 889.43' S= 0.0071 '/' Cc= 0.900 n= 0.011 Concrete pipe, straight & clean, Flow Area= 0.79 sf #2 Device 1 890.55'8.0" Vert. Orifice/Grate C= 0.600 #3 Device 1 892.72'8.0" Vert. Orifice/Grate C= 0.600 #4 Discarded 889.75'0.060 in/hr Exfiltration over Surface area Phase-In= 0.01' Discarded OutFlow Max=0.03 cfs @ 6.81 hrs HW=889.76' (Free Discharge) 4=Exfiltration (Exfiltration Controls 0.03 cfs) Primary OutFlow Max=1.07 cfs @ 12.64 hrs HW=891.29' TW=0.00' (Dynamic Tailwater) 1=Culvert (Passes 1.07 cfs of 3.68 cfs potential flow) 2=Orifice/Grate (Orifice Controls 1.07 cfs @ 3.05 fps) 3=Orifice/Grate ( Controls 0.00 cfs) MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 507HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Pond 41.3P: South West Inflow Outflow Discarded Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)6 5 4 3 2 1 0 Inflow Area=0.686 ac Peak Elev=891.29' Storage=10,393 cf 5.94 cfs 1.10 cfs 0.03 cfs 1.07 cfs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 508HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Pond 44P: Wetland 4 Inflow Area = 24.628 ac, 36.70% Impervious, Inflow Depth = 3.85" for 100y 24hr event Inflow = 39.40 cfs @ 12.25 hrs, Volume= 7.897 af Outflow = 39.38 cfs @ 12.26 hrs, Volume= 7.896 af, Atten= 0%, Lag= 0.3 min Primary = 39.38 cfs @ 12.26 hrs, Volume= 7.896 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 884.77' @ 12.26 hrs Surf.Area= 2,795 sf Storage= 1,353 cf Plug-Flow detention time= 1.8 min calculated for 7.896 af (100% of inflow) Center-of-Mass det. time= 1.4 min ( 980.4 - 978.9 ) Volume Invert Avail.Storage Storage Description #1 884.00' 37,633 cf Custom Stage Data (Prismatic) Listed below (Recalc) Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 884.00 870 0 0 884.50 1,980 713 713 885.00 3,500 1,370 2,083 886.00 7,800 5,650 7,733 887.00 14,000 10,900 18,633 888.00 24,000 19,000 37,633 Device Routing Invert Outlet Devices #1 Primary 884.03'Asymmetrical Weir, C= 3.27 Offset (feet) 0.00 51.00 133.60 176.00 217.30 239.00 Elev. (feet) 889.78 886.05 884.03 885.84 889.00 889.78 Primary OutFlow Max=39.38 cfs @ 12.26 hrs HW=884.77' TW=0.00' (Dynamic Tailwater) 1=Asymmetrical Weir (Weir Controls 39.38 cfs @ 1.12 fps) MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 509HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Pond 44P: Wetland 4 Inflow Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)44 42 40 38 36 34 32 30 28 26 24 22 20 18 16 14 12 10 8 6 4 2 0 Inflow Area=24.628 ac Peak Elev=884.77' Storage=1,353 cf 39.40 cfs 39.38 cfs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 510HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Pond 46P: Triangle Basin Inflow Area = 2.229 ac, 19.60% Impervious, Inflow Depth = 5.49" for 100y 24hr event Inflow = 14.82 cfs @ 12.17 hrs, Volume= 1.019 af Outflow = 10.09 cfs @ 12.29 hrs, Volume= 1.019 af, Atten= 32%, Lag= 7.2 min Discarded = 0.01 cfs @ 12.29 hrs, Volume= 0.014 af Primary = 10.08 cfs @ 12.29 hrs, Volume= 1.005 af Secondary = 0.00 cfs @ 0.00 hrs, Volume= 0.000 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 888.74' @ 12.29 hrs Surf.Area= 6,766 sf Storage= 5,342 cf Plug-Flow detention time= 29.2 min calculated for 1.019 af (100% of inflow) Center-of-Mass det. time= 29.3 min ( 799.8 - 770.5 ) Volume Invert Avail.Storage Storage Description #1 884.37' 1,087 cf Sand section (Prismatic) Listed below (Recalc) 3,648 cf Overall - 24 cf Embedded = 3,623 cf x 30.0% Voids #2 884.37' 24 cf 8.0" Round Pipe Storage Inside #1 L= 70.0' #3 886.67' 159 cf Topsoil (Prismatic) Listed below (Recalc) 793 cf Overall x 20.0% Voids #4 887.17' 14,801 cf Open pond (Prismatic) Listed below (Recalc) 16,071 cf Total Available Storage Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 884.37 1,586 0 0 886.67 1,586 3,648 3,648 Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 886.67 1,586 0 0 887.17 1,586 793 793 Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 887.17 1,586 0 0 890.90 6,350 14,801 14,801 Device Routing Invert Outlet Devices #1 Primary 884.37'18.0" Round Culvert L= 125.0' RCP, sq.cut end projecting, Ke= 0.500 Inlet / Outlet Invert= 884.37' / 884.00' S= 0.0030 '/' Cc= 0.900 n= 0.011 Concrete pipe, straight & clean, Flow Area= 1.77 sf #2 Device 1 885.17'12.0" Vert. Orifice/Grate C= 0.600 #3 Device 1 887.41'12.0" Vert. Orifice/Grate C= 0.600 #4 Secondary 890.75'20.0' long x 5.0' breadth Broad-Crested Rectangular Weir Head (feet) 0.20 0.40 0.60 0.80 1.00 1.20 1.40 1.60 1.80 2.00 2.50 3.00 3.50 4.00 4.50 5.00 5.50 Coef. (English) 2.34 2.50 2.70 2.68 2.68 2.66 2.65 2.65 2.65 MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 511HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC 2.65 2.67 2.66 2.68 2.70 2.74 2.79 2.88 #5 Discarded 884.37'0.060 in/hr Exfiltration over Surface area Phase-In= 0.01' Discarded OutFlow Max=0.01 cfs @ 12.29 hrs HW=888.74' (Free Discharge) 5=Exfiltration (Exfiltration Controls 0.01 cfs) Primary OutFlow Max=10.08 cfs @ 12.29 hrs HW=888.74' TW=0.00' (Dynamic Tailwater) 1=Culvert (Passes 10.08 cfs of 14.42 cfs potential flow) 2=Orifice/Grate (Orifice Controls 6.63 cfs @ 8.44 fps) 3=Orifice/Grate (Orifice Controls 3.45 cfs @ 4.39 fps) Secondary OutFlow Max=0.00 cfs @ 0.00 hrs HW=884.37' TW=0.00' (Dynamic Tailwater) 4=Broad-Crested Rectangular Weir ( Controls 0.00 cfs) Pond 46P: Triangle Basin Inflow Outflow Discarded Primary Secondary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 Inflow Area=2.229 ac Peak Elev=888.74' Storage=5,342 cf 14.82 cfs 10.09 cfs 0.01 cfs 10.08 cfs 0.00 cfs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 512HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Pond 47P: Bluff Creek - West Basin Inflow Area = 7.031 ac, 70.52% Impervious, Inflow Depth = 6.53" for 100y 24hr event Inflow = 58.16 cfs @ 12.10 hrs, Volume= 3.826 af Outflow = 3.18 cfs @ 13.66 hrs, Volume= 3.826 af, Atten= 95%, Lag= 93.3 min Discarded = 0.30 cfs @ 12.15 hrs, Volume= 1.189 af Primary = 2.88 cfs @ 13.66 hrs, Volume= 2.638 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 911.58' @ 13.66 hrs Surf.Area= 214,600 sf Storage= 122,722 cf Plug-Flow detention time= 909.7 min calculated for 3.826 af (100% of inflow) Center-of-Mass det. time= 909.8 min ( 1,661.7 - 751.9 ) Volume Invert Avail.Storage Storage Description #1 908.20' 73,521 cf Custom Stage Data (Prismatic) Listed below (Recalc) 246,790 cf Overall - 1,719 cf Embedded = 245,071 cf x 30.0% Voids #2 910.50' 85,152 cf Custom Stage Data (Prismatic) Listed below (Recalc) 214,600 cf Overall - 1,719 cf Embedded = 212,881 cf x 40.0% Voids #3 908.20' 1,719 cf 8.0" Round Pipe Storage Inside #1 L= 4,925.0' #4 910.50' 1,719 cf 8.0" Round Pipe Storage Inside #2 L= 4,925.0' 162,112 cf Total Available Storage Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 908.20 107,300 0 0 910.50 107,300 246,790 246,790 Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 910.50 107,300 0 0 912.50 107,300 214,600 214,600 Device Routing Invert Outlet Devices #1 Primary 908.20'12.0" Round Culvert L= 307.0' RCP, square edge headwall, Ke= 0.500 Inlet / Outlet Invert= 908.20' / 905.13' S= 0.0100 '/' Cc= 0.900 n= 0.011 Concrete pipe, straight & clean, Flow Area= 0.79 sf #2 Device 1 909.00'8.0" Vert. Orifice/Grate C= 0.600 #3 Device 1 911.24'8.0" Vert. Orifice/Grate C= 0.600 #4 Discarded 908.20'0.060 in/hr Exfiltration over Surface area Phase-In= 0.01' Discarded OutFlow Max=0.30 cfs @ 12.15 hrs HW=910.50' (Free Discharge) 4=Exfiltration (Exfiltration Controls 0.30 cfs) Primary OutFlow Max=2.88 cfs @ 13.66 hrs HW=911.58' TW=0.00' (Dynamic Tailwater) 1=Culvert (Passes 2.88 cfs of 5.08 cfs potential flow) 2=Orifice/Grate (Orifice Controls 2.52 cfs @ 7.22 fps) 3=Orifice/Grate (Orifice Controls 0.36 cfs @ 1.99 fps) MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 513HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Pond 47P: Bluff Creek - West Basin Inflow Outflow Discarded Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)65 60 55 50 45 40 35 30 25 20 15 10 5 0 Inflow Area=7.031 ac Peak Elev=911.58' Storage=122,722 cf 58.16 cfs 3.18 cfs 0.30 cfs2.88 cfs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 514HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Pond 48P: Bluff Creek - East Basin Inflow Area = 3.441 ac, 81.34% Impervious, Inflow Depth = 6.78" for 100y 24hr event Inflow = 36.74 cfs @ 12.07 hrs, Volume= 1.944 af Outflow = 2.66 cfs @ 13.12 hrs, Volume= 1.944 af, Atten= 93%, Lag= 62.7 min Discarded = 0.14 cfs @ 12.09 hrs, Volume= 0.501 af Primary = 2.52 cfs @ 13.12 hrs, Volume= 1.443 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 898.56' @ 13.12 hrs Surf.Area= 104,170 sf Storage= 55,932 cf Plug-Flow detention time= 630.3 min calculated for 1.944 af (100% of inflow) Center-of-Mass det. time= 630.3 min ( 1,372.7 - 742.4 ) Volume Invert Avail.Storage Storage Description #1 895.35' 35,688 cf Custom Stage Data (Prismatic) Listed below (Recalc) 119,795 cf Overall - 834 cf Embedded = 118,961 cf x 30.0% Voids #2 897.65' 41,334 cf Custom Stage Data (Prismatic) Listed below (Recalc) 104,170 cf Overall - 834 cf Embedded = 103,336 cf x 40.0% Voids #3 895.35' 834 cf 8.0" Round Pipe Storage Inside #1 L= 2,390.0' #4 897.65' 834 cf 8.0" Round Pipe Storage Inside #2 L= 2,390.0' 78,691 cf Total Available Storage Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 895.35 52,085 0 0 897.65 52,085 119,795 119,795 Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 897.65 52,085 0 0 899.65 52,085 104,170 104,170 Device Routing Invert Outlet Devices #1 Primary 895.35'12.0" Round Culvert L= 637.0' RCP, square edge headwall, Ke= 0.500 Inlet / Outlet Invert= 895.35' / 888.98' S= 0.0100 '/' Cc= 0.900 n= 0.011 Concrete pipe, straight & clean, Flow Area= 0.79 sf #2 Device 1 896.15'8.0" Vert. Orifice/Grate C= 0.600 #3 Device 1 898.39'8.0" Vert. Orifice/Grate C= 0.600 #4 Discarded 895.35'0.060 in/hr Exfiltration over Surface area Phase-In= 0.01' Discarded OutFlow Max=0.14 cfs @ 12.09 hrs HW=897.70' (Free Discharge) 4=Exfiltration (Exfiltration Controls 0.14 cfs) Primary OutFlow Max=2.52 cfs @ 13.12 hrs HW=898.56' TW=0.00' (Dynamic Tailwater) 1=Culvert (Passes 2.52 cfs of 4.64 cfs potential flow) 2=Orifice/Grate (Orifice Controls 2.42 cfs @ 6.93 fps) 3=Orifice/Grate (Orifice Controls 0.10 cfs @ 1.39 fps) MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 515HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Pond 48P: Bluff Creek - East Basin Inflow Outflow Discarded Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)40 38 36 34 32 30 28 26 24 22 20 18 16 14 12 10 8 6 4 2 0 Inflow Area=3.441 ac Peak Elev=898.56' Storage=55,932 cf 36.74 cfs 2.66 cfs 0.14 cfs2.52 cfs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 516HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Pond 48P(2): Bluff Creek - East Basin Inflow Area = 2.152 ac, 68.04% Impervious, Inflow Depth = 6.50" for 100y 24hr event Inflow = 17.66 cfs @ 12.13 hrs, Volume= 1.166 af Outflow = 2.81 cfs @ 12.69 hrs, Volume= 1.166 af, Atten= 84%, Lag= 33.3 min Discarded = 0.07 cfs @ 12.11 hrs, Volume= 0.220 af Primary = 2.74 cfs @ 12.69 hrs, Volume= 0.945 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 899.20' @ 12.69 hrs Surf.Area= 48,858 sf Storage= 28,575 cf Plug-Flow detention time= 420.0 min calculated for 1.165 af (100% of inflow) Center-of-Mass det. time= 420.1 min ( 1,171.0 - 750.9 ) Volume Invert Avail.Storage Storage Description #1 895.75' 16,739 cf Custom Stage Data (Prismatic) Listed below (Recalc) 56,187 cf Overall - 391 cf Embedded = 55,795 cf x 30.0% Voids #2 898.05' 19,387 cf Custom Stage Data (Prismatic) Listed below (Recalc) 48,858 cf Overall - 391 cf Embedded = 48,467 cf x 40.0% Voids #3 895.75' 391 cf 8.0" Round Pipe Storage Inside #1 L= 1,121.0' #4 898.05' 391 cf 8.0" Round Pipe Storage Inside #2 L= 1,121.0' 36,908 cf Total Available Storage Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 895.75 24,429 0 0 898.05 24,429 56,187 56,187 Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 898.05 24,429 0 0 900.05 24,429 48,858 48,858 Device Routing Invert Outlet Devices #1 Primary 895.75'8.0" Round Culvert L= 50.0' RCP, square edge headwall, Ke= 0.500 Inlet / Outlet Invert= 895.75' / 895.25' S= 0.0100 '/' Cc= 0.900 n= 0.011 Concrete pipe, straight & clean, Flow Area= 0.35 sf #2 Device 1 896.55'8.0" Vert. Orifice/Grate C= 0.600 #3 Device 1 898.79'8.0" Vert. Orifice/Grate C= 0.600 #4 Discarded 895.75'0.060 in/hr Exfiltration over Surface area Phase-In= 0.01' Discarded OutFlow Max=0.07 cfs @ 12.11 hrs HW=898.09' (Free Discharge) 4=Exfiltration (Exfiltration Controls 0.07 cfs) Primary OutFlow Max=2.74 cfs @ 12.69 hrs HW=899.20' TW=0.00' (Dynamic Tailwater) 1=Culvert (Barrel Controls 2.74 cfs @ 7.85 fps) 2=Orifice/Grate (Passes < 2.56 cfs potential flow) 3=Orifice/Grate (Passes < 0.49 cfs potential flow) MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 517HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Pond 48P(2): Bluff Creek - East Basin Inflow Outflow Discarded Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 Inflow Area=2.152 ac Peak Elev=899.20' Storage=28,575 cf 17.66 cfs 2.81 cfs 0.07 cfs 2.74 cfs Type II 24-hr 100y 24hr Old Rainfall=6.00"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 518HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Time span=0.00-360.00 hrs, dt=0.01 hrs, 36001 points Runoff by SCS TR-20 method, UH=SCS, Weighted-Q Reach routing by Dyn-Stor-Ind method - Pond routing by Dyn-Stor-Ind method Runoff Area=228,234 sf 16.43% Impervious Runoff Depth=4.11"Subcatchment 21S: Direct to 21P Tc=10.0 min CN=WQ Runoff=31.66 cfs 1.793 af Runoff Area=10,548 sf 0.00% Impervious Runoff Depth=3.58"Subcatchment 22oS: From Lyman Flow Length=57' Slope=0.3330 '/' Tc=5.0 min CN=78 Runoff=1.58 cfs 0.072 af Runoff Area=41,671 sf 0.00% Impervious Runoff Depth=3.78"Subcatchment 22S: Direct to Wetland 6 Tc=5.0 min CN=80 Runoff=6.54 cfs 0.301 af Runoff Area=59,105 sf 69.40% Impervious Runoff Depth=5.16"Subcatchment 24S: Northwest Tc=10.0 min CN=WQ Runoff=9.49 cfs 0.583 af Runoff Area=202,586 sf 45.17% Impervious Runoff Depth=4.68"Subcatchment 25S: West North Tc=10.0 min CN=WQ Runoff=30.49 cfs 1.812 af Runoff Area=121,658 sf 66.00% Impervious Runoff Depth=5.09"Subcatchment 28S: Avienda Pkwy - NW Tc=15.0 min CN=WQ Runoff=16.53 cfs 1.184 af Runoff Area=1,162 sf 100.00% Impervious Runoff Depth=5.76"Subcatchment 29oS: North Offsite Tc=5.0 min CN=98 Runoff=0.24 cfs 0.013 af Runoff Area=32,839 sf 22.84% Impervious Runoff Depth=4.23"Subcatchment 31S: West Central Flow Length=360' Slope=0.0200 '/' Tc=14.7 min UI Adjusted CN=WQ Runoff=3.98 cfs 0.266 af Runoff Area=115,865 sf 17.26% Impervious Runoff Depth=4.10"Subcatchment 33oS: Offsite West - North Flow Length=431' Tc=7.3 min UI Adjusted CN=WQ Runoff=17.23 cfs 0.909 af Runoff Area=78,153 sf 0.00% Impervious Runoff Depth=4.44"Subcatchment 33S: Direct to Wetland 3 Tc=12.0 min CN=WQ Runoff=10.73 cfs 0.663 af Runoff Area=25,470 sf 19.98% Impervious Runoff Depth=4.18"Subcatchment 34dS: Offsite West Direct Tc=10.0 min CN=WQ Runoff=3.57 cfs 0.204 af Runoff Area=32,710 sf 8.25% Impervious Runoff Depth=3.82"Subcatchment 34oS: Offsite to West South Flow Length=37' Slope=0.1620 '/' Tc=5.0 min UI Adjusted CN=WQ Runoff=5.11 cfs 0.239 af Runoff Area=2.423 ac 0.00% Impervious Runoff Depth=1.52"Subcatchment 34S: West Woods Flow Length=268' Tc=11.1 min CN=55 Runoff=5.08 cfs 0.306 af Runoff Area=3.790 ac 0.00% Impervious Runoff Depth=1.52"Subcatchment 35S: Southwest Flow Length=270' Tc=18.3 min CN=55 Runoff=6.03 cfs 0.479 af Runoff Area=1,628 sf 100.00% Impervious Runoff Depth=5.76"Subcatchment 36oS: Southwest Offsite Tc=5.0 min CN=98 Runoff=0.33 cfs 0.018 af Runoff Area=163,468 sf 81.66% Impervious Runoff Depth=5.40"Subcatchment 40.1S: South - East Tc=10.0 min CN=WQ Runoff=27.06 cfs 1.688 af Type II 24-hr 100y 24hr Old Rainfall=6.00"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 519HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Runoff Area=200,567 sf 76.19% Impervious Runoff Depth=5.29"Subcatchment 40.2S: South - Central Tc=10.0 min CN=WQ Runoff=32.75 cfs 2.030 af Runoff Area=228,145 sf 69.55% Impervious Runoff Depth=5.16"Subcatchment 40.3S: South - West Tc=10.0 min CN=WQ Runoff=36.63 cfs 2.252 af Runoff Area=69,984 sf 85.30% Impervious Runoff Depth=5.47"Subcatchment 41.1S: South - East Tc=10.0 min CN=WQ Runoff=11.69 cfs 0.732 af Runoff Area=156,419 sf 80.17% Impervious Runoff Depth=5.37"Subcatchment 41.2S: South - Central Tc=10.0 min CN=WQ Runoff=25.80 cfs 1.607 af Runoff Area=29,884 sf 93.81% Impervious Runoff Depth=5.64"Subcatchment 41.3S: South - west Tc=10.0 min CN=WQ Runoff=5.10 cfs 0.322 af Runoff Area=41,871 sf 0.00% Impervious Runoff Depth=3.78"Subcatchment 42.1S: South Tc=5.0 min CN=80 Runoff=6.57 cfs 0.303 af Runoff Area=24,525 sf 0.00% Impervious Runoff Depth=3.78"Subcatchment 42.2S: Southeast Tc=5.0 min CN=80 Runoff=3.85 cfs 0.177 af Runoff Area=3.222 ac 0.00% Impervious Runoff Depth=1.52"Subcatchment 43.1S: East Woods Flow Length=530' Tc=15.2 min CN=55 Runoff=5.73 cfs 0.408 af Runoff Area=1.862 ac 0.00% Impervious Runoff Depth=1.52"Subcatchment 43.2S: Northeast Woods Flow Length=623' Tc=19.5 min CN=55 Runoff=2.85 cfs 0.236 af Runoff Area=441,314 sf 0.00% Impervious Runoff Depth=1.52"Subcatchment 44S: North Woods Flow Length=599' Tc=16.5 min CN=55 Runoff=17.17 cfs 1.281 af Runoff Area=206,303 sf 65.51% Impervious Runoff Depth=5.04"Subcatchment 45S: Central - West Tc=10.0 min CN=WQ Runoff=33.24 cfs 1.988 af Runoff Area=97,082 sf 19.60% Impervious Runoff Depth=4.17"Subcatchment 46S: South Townhomes Flow Length=701' Tc=12.6 min CN=WQ Runoff=12.45 cfs 0.774 af Runoff Area=2.295 ac 80.87% Impervious Runoff Depth=5.38"Subcatchment 47S: Bluff Creek Blvd - West Tc=5.0 min CN=WQ Runoff=19.38 cfs 1.029 af Runoff Area=93,721 sf 68.04% Impervious Runoff Depth=5.13"Subcatchment 48.1S: Direct to 48P (2) Tc=10.0 min CN=WQ Runoff=14.99 cfs 0.920 af Runoff Area=3.441 ac 81.34% Impervious Runoff Depth=5.39"Subcatchment 48S: Bluff Creek Blvd - East Tc=5.0 min CN=WQ Runoff=29.09 cfs 1.546 af Inflow=12.17 cfs 4.824 afReach 20R: Northwest Drainage Outflow=12.17 cfs 4.824 af Avg. Flow Depth=0.58' Max Vel=0.95 fps Inflow=13.10 cfs 4.824 afReach 21R: Lower Wetland 6 n=0.050 L=187.0' S=0.0053 '/' Capacity=3,072.14 cfs Outflow=12.17 cfs 4.824 af Type II 24-hr 100y 24hr Old Rainfall=6.00"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 520HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Inflow=14.57 cfs 3.064 afReach 30R: SW Drainage Outflow=14.57 cfs 3.064 af Inflow=8.40 cfs 0.683 afReach 35R: Direct Runoff Outflow=8.40 cfs 0.683 af Inflow=60.35 cfs 12.617 afReach 40R: South Drainage Outflow=60.35 cfs 12.617 af Inflow=15.11 cfs 2.993 afReach 42.1R: South Outflow=15.11 cfs 2.993 af Inflow=8.24 cfs 3.428 afReach 42.2R: Southeast Outflow=8.24 cfs 3.428 af Inflow=32.68 cfs 5.788 afReach 44R: Wetland 4 Channel Outflow=32.68 cfs 5.788 af Inflow=12.85 cfs 4.272 afReach 48R: Development to Wetland 4 Outflow=12.85 cfs 4.272 af Inflow=83.46 cfs 20.505 afReach 50R: Bluff Creek Drainage Outflow=83.46 cfs 20.505 af Peak Elev=893.82' Storage=83,159 cf Inflow=48.57 cfs 4.840 afPond 21P: North Basin Discarded=0.16 cfs 0.403 af Primary=9.22 cfs 4.438 af Secondary=0.00 cfs 0.000 af Outflow=9.38 cfs 4.840 af Peak Elev=915.88' Storage=11,265 cf Inflow=9.49 cfs 0.583 afPond 24P: Northwest Basin Discarded=0.03 cfs 0.099 af Primary=2.39 cfs 0.484 af Outflow=2.42 cfs 0.583 af Peak Elev=916.70' Storage=22,095 cf Inflow=30.49 cfs 1.812 afPond 25P: West - North Discarded=0.04 cfs 0.141 af Primary=15.35 cfs 1.671 af Outflow=15.39 cfs 1.812 af Peak Elev=912.56' Storage=28,459 cf Inflow=16.53 cfs 1.184 afPond 28P: Avienda Pkwy - NW Basin Discarded=0.09 cfs 0.292 af Primary=2.19 cfs 0.892 af Outflow=2.27 cfs 1.184 af Peak Elev=923.92' Storage=2,562 cf Inflow=3.98 cfs 0.266 afPond 31P: West South Basin Discarded=0.01 cfs 0.021 af Primary=2.31 cfs 0.245 af Secondary=0.00 cfs 0.000 af Outflow=2.32 cfs 0.266 af Peak Elev=898.64' Inflow=15.35 cfs 1.671 afPond 32P: Drop MH 18.0" Round Culvert n=0.011 L=90.0' S=0.0056 '/' Outflow=15.35 cfs 1.671 af Peak Elev=921.73' Storage=38,342 cf Inflow=28.84 cfs 1.817 afPond 33P: Wetland 3 Primary=3.05 cfs 1.818 af Secondary=0.00 cfs 0.000 af Outflow=3.05 cfs 1.818 af Peak Elev=908.74' Storage=0.110 af Inflow=11.12 cfs 2.363 afPond 34P: West - South (existing) Outflow=6.23 cfs 2.363 af Peak Elev=895.75' Inflow=2.39 cfs 0.484 afPond 35P: Drop MH 12.0" Round Culvert n=0.011 L=150.0' S=0.0053 '/' Outflow=2.39 cfs 0.484 af Type II 24-hr 100y 24hr Old Rainfall=6.00"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 521HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Peak Elev=895.42' Inflow=2.19 cfs 0.892 afPond 36P: Drop MH 12.0" Round Culvert n=0.011 L=100.0' S=0.0050 '/' Outflow=2.19 cfs 0.892 af Peak Elev=896.38' Storage=43,869 cf Inflow=27.06 cfs 1.688 afPond 40.1P: South East Discarded=0.14 cfs 0.499 af Primary=2.09 cfs 1.189 af Outflow=2.23 cfs 1.688 af Peak Elev=896.91' Storage=55,137 cf Inflow=32.75 cfs 2.030 afPond 40.2P: South Central Discarded=0.13 cfs 0.923 af Primary=1.48 cfs 1.107 af Outflow=1.61 cfs 2.030 af Peak Elev=900.48' Storage=59,306 cf Inflow=36.63 cfs 2.252 afPond 40.3P: South Discarded=0.17 cfs 0.617 af Primary=2.29 cfs 1.635 af Outflow=2.45 cfs 2.252 af Peak Elev=889.36' Storage=18,911 cf Inflow=11.69 cfs 0.732 afPond 41.1P: South East Discarded=0.06 cfs 0.409 af Primary=0.80 cfs 0.324 af Outflow=0.87 cfs 0.732 af Peak Elev=885.34' Storage=22,276 cf Inflow=25.80 cfs 1.607 afPond 41.2P: South Central Discarded=0.05 cfs 0.153 af Primary=12.56 cfs 1.454 af Outflow=12.61 cfs 1.607 af Peak Elev=890.94' Storage=8,134 cf Inflow=5.10 cfs 0.322 afPond 41.3P: South West Discarded=0.03 cfs 0.193 af Primary=0.46 cfs 0.129 af Outflow=0.49 cfs 0.322 af Peak Elev=884.69' Storage=1,146 cf Inflow=29.89 cfs 5.554 afPond 44P: Wetland 4 Outflow=29.87 cfs 5.553 af Peak Elev=888.42' Storage=4,256 cf Inflow=12.45 cfs 0.774 afPond 46P: Triangle Basin Discarded=0.01 cfs 0.014 af Primary=8.98 cfs 0.760 af Secondary=0.00 cfs 0.000 af Outflow=8.99 cfs 0.774 af Peak Elev=910.68' Storage=83,341 cf Inflow=49.96 cfs 3.018 afPond 47P: Bluff Creek - West Basin Discarded=0.30 cfs 1.141 af Primary=1.95 cfs 1.877 af Outflow=2.25 cfs 3.018 af Peak Elev=897.82' Storage=40,126 cf Inflow=29.09 cfs 1.546 afPond 48P: Bluff Creek - East Basin Discarded=0.14 cfs 0.502 af Primary=1.94 cfs 1.045 af Outflow=2.09 cfs 1.546 af Peak Elev=898.48' Storage=21,529 cf Inflow=14.99 cfs 0.920 afPond 48P(2): Bluff Creek - East Basin Discarded=0.07 cfs 0.226 af Primary=2.13 cfs 0.693 af Outflow=2.19 cfs 0.920 af Total Runoff Area = 79.129 ac Runoff Volume = 26.138 af Average Runoff Depth = 3.96" 60.33% Pervious = 47.742 ac 39.67% Impervious = 31.387 ac Type II 24-hr 100y 24hr Old Rainfall=6.00"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 522HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 21S: Direct to 21P Runoff = 31.66 cfs @ 12.01 hrs, Volume= 1.793 af, Depth= 4.11" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Type II 24-hr 100y 24hr Old Rainfall=6.00" Area (sf) CN Description 37,500 98 Paved parking, HSG D 190,734 80 >75% Grass cover, Good, HSG D 228,234 Weighted Average 190,734 80 83.57% Pervious Area 37,500 98 16.43% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 10.0 Direct Entry, Subcatchment 21S: Direct to 21P Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)34 32 30 28 26 24 22 20 18 16 14 12 10 8 6 4 2 0 Type II 24-hr 100y 24hr Old Rainfall=6.00" Runoff Area=228,234 sf Runoff Volume=1.793 af Runoff Depth=4.11" Tc=10.0 min CN=WQ 31.66 cfs Type II 24-hr 100y 24hr Old Rainfall=6.00"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 523HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 22oS: From Lyman Runoff = 1.58 cfs @ 11.96 hrs, Volume= 0.072 af, Depth= 3.58" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Type II 24-hr 100y 24hr Old Rainfall=6.00" Area (sf) CN Description 10,548 78 Meadow, non-grazed, HSG D 10,548 78 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 2.1 57 0.3330 0.44 Sheet Flow, Grass: Short n= 0.150 P2= 2.87" 2.9 Direct Entry, Make up to 5 minutes 5.0 57 Total Subcatchment 22oS: From Lyman Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)1 0 Type II 24-hr 100y 24hr Old Rainfall=6.00" Runoff Area=10,548 sf Runoff Volume=0.072 af Runoff Depth=3.58" Flow Length=57' Slope=0.3330 '/' Tc=5.0 min CN=78 1.58 cfs Type II 24-hr 100y 24hr Old Rainfall=6.00"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 524HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 22S: Direct to Wetland 6 Runoff = 6.54 cfs @ 11.96 hrs, Volume= 0.301 af, Depth= 3.78" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Type II 24-hr 100y 24hr Old Rainfall=6.00" Area (sf) CN Description 41,671 80 >75% Grass cover, Good, HSG D 41,671 80 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 5.0 Direct Entry, Subcatchment 22S: Direct to Wetland 6 Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)7 6 5 4 3 2 1 0 Type II 24-hr 100y 24hr Old Rainfall=6.00" Runoff Area=41,671 sf Runoff Volume=0.301 af Runoff Depth=3.78" Tc=5.0 min CN=80 6.54 cfs Type II 24-hr 100y 24hr Old Rainfall=6.00"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 525HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 24S: Northwest Runoff = 9.49 cfs @ 12.01 hrs, Volume= 0.583 af, Depth= 5.16" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Type II 24-hr 100y 24hr Old Rainfall=6.00" Area (sf) CN Description 18,089 80 >75% Grass cover, Good, HSG D * 41,016 98 Paved parking and roofs, HSG D 59,105 Weighted Average 18,089 80 30.60% Pervious Area 41,016 98 69.40% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 10.0 Direct Entry, Subcatchment 24S: Northwest Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)10 9 8 7 6 5 4 3 2 1 0 Type II 24-hr 100y 24hr Old Rainfall=6.00" Runoff Area=59,105 sf Runoff Volume=0.583 af Runoff Depth=5.16" Tc=10.0 min CN=WQ 9.49 cfs Type II 24-hr 100y 24hr Old Rainfall=6.00"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 526HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 25S: West North Runoff = 30.49 cfs @ 12.01 hrs, Volume= 1.812 af, Depth= 4.68" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Type II 24-hr 100y 24hr Old Rainfall=6.00" Area (sf) CN Description 111,088 80 >75% Grass cover, Good, HSG D * 91,498 98 Paved parking, & roofs HSG D 202,586 Weighted Average 111,088 80 54.83% Pervious Area 91,498 98 45.17% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 10.0 Direct Entry, Subcatchment 25S: West North Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)34 32 30 28 26 24 22 20 18 16 14 12 10 8 6 4 2 0 Type II 24-hr 100y 24hr Old Rainfall=6.00" Runoff Area=202,586 sf Runoff Volume=1.812 af Runoff Depth=4.68" Tc=10.0 min CN=WQ 30.49 cfs Type II 24-hr 100y 24hr Old Rainfall=6.00"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 527HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 28S: Avienda Pkwy - NW Runoff = 16.53 cfs @ 12.06 hrs, Volume= 1.184 af, Depth= 5.09" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Type II 24-hr 100y 24hr Old Rainfall=6.00" Area (sf) CN Description 41,364 80 >75% Grass cover, Good, HSG D 80,294 98 Paved roads w/curbs & sewers, HSG D 121,658 Weighted Average 41,364 80 34.00% Pervious Area 80,294 98 66.00% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 15.0 Direct Entry, Subcatchment 28S: Avienda Pkwy - NW Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 Type II 24-hr 100y 24hr Old Rainfall=6.00" Runoff Area=121,658 sf Runoff Volume=1.184 af Runoff Depth=5.09" Tc=15.0 min CN=WQ 16.53 cfs Type II 24-hr 100y 24hr Old Rainfall=6.00"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 528HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 29oS: North Offsite Runoff = 0.24 cfs @ 11.96 hrs, Volume= 0.013 af, Depth= 5.76" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Type II 24-hr 100y 24hr Old Rainfall=6.00" Area (sf) CN Description 1,162 98 Paved parking, HSG D 1,162 98 100.00% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 5.0 Direct Entry, Subcatchment 29oS: North Offsite Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.26 0.25 0.24 0.23 0.22 0.21 0.2 0.19 0.18 0.17 0.16 0.15 0.14 0.13 0.12 0.11 0.1 0.09 0.08 0.07 0.06 0.05 0.04 0.03 0.02 0.01 0 Type II 24-hr 100y 24hr Old Rainfall=6.00" Runoff Area=1,162 sf Runoff Volume=0.013 af Runoff Depth=5.76" Tc=5.0 min CN=98 0.24 cfs Type II 24-hr 100y 24hr Old Rainfall=6.00"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 529HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 31S: West Central Runoff = 3.98 cfs @ 12.07 hrs, Volume= 0.266 af, Depth= 4.23" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Type II 24-hr 100y 24hr Old Rainfall=6.00" Area (sf) CN Adj Description 25,339 80 80 >75% Grass cover, Good, HSG D 7,500 98 98 Unconnected roofs, HSG D 32,839 Weighted Average 25,339 80 80 77.16% Pervious Area 7,500 98 98 22.84% Impervious Area 7,500 100.00% Unconnected Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 10.3 100 0.0200 0.16 Sheet Flow, Grass: Short n= 0.150 P2= 2.87" 4.4 260 0.0200 0.99 Shallow Concentrated Flow, Short Grass Pasture Kv= 7.0 fps 14.7 360 Total Subcatchment 31S: West Central Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)4 3 2 1 0 Type II 24-hr 100y 24hr Old Rainfall=6.00" Runoff Area=32,839 sf Runoff Volume=0.266 af Runoff Depth=4.23" Flow Length=360' Slope=0.0200 '/' Tc=14.7 min UI Adjusted CN=WQ 3.98 cfs Type II 24-hr 100y 24hr Old Rainfall=6.00"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 530HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 33oS: Offsite West - North Runoff = 17.23 cfs @ 11.98 hrs, Volume= 0.909 af, Depth= 4.10" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Type II 24-hr 100y 24hr Old Rainfall=6.00" Area (sf) CN Adj Description 20,000 98 98 Unconnected roofs, HSG D 71,000 80 80 >75% Grass cover, Good, HSG D * 12,720 96 96 Wetland, Good, HSG D 12,145 58 58 Meadow, non-grazed, HSG B 115,865 Weighted Average 95,865 79 79 82.74% Pervious Area 20,000 98 98 17.26% Impervious Area 20,000 100.00% Unconnected Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 5.0 25 0.0200 0.08 Sheet Flow, Grass: Dense n= 0.240 P2= 2.87" 2.3 406 0.0390 2.96 Shallow Concentrated Flow, Grassed Waterway Kv= 15.0 fps 7.3 431 Total Subcatchment 33oS: Offsite West - North Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 Type II 24-hr 100y 24hr Old Rainfall=6.00" Runoff Area=115,865 sf Runoff Volume=0.909 af Runoff Depth=4.10" Flow Length=431' Tc=7.3 min UI Adjusted CN=WQ 17.23 cfs Type II 24-hr 100y 24hr Old Rainfall=6.00"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 531HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 33S: Direct to Wetland 3 Runoff = 10.73 cfs @ 12.04 hrs, Volume= 0.663 af, Depth= 4.44" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Type II 24-hr 100y 24hr Old Rainfall=6.00" Area (sf) CN Description * 29,365 96 Wetland, Good, HSG D 48,788 80 >75% Grass cover, Good, HSG D 78,153 Weighted Average 78,153 86 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 12.0 Direct Entry, Subcatchment 33S: Direct to Wetland 3 Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)12 11 10 9 8 7 6 5 4 3 2 1 0 Type II 24-hr 100y 24hr Old Rainfall=6.00" Runoff Area=78,153 sf Runoff Volume=0.663 af Runoff Depth=4.44" Tc=12.0 min CN=WQ 10.73 cfs Type II 24-hr 100y 24hr Old Rainfall=6.00"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 532HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 34dS: Offsite West Direct Runoff = 3.57 cfs @ 12.01 hrs, Volume= 0.204 af, Depth= 4.18" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Type II 24-hr 100y 24hr Old Rainfall=6.00" Area (sf) CN Description 20,380 80 >75% Grass cover, Good, HSG D * 5,090 98 Paved, HSG D 25,470 Weighted Average 20,380 80 80.02% Pervious Area 5,090 98 19.98% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 10.0 Direct Entry, Subcatchment 34dS: Offsite West Direct Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)3 2 1 0 Type II 24-hr 100y 24hr Old Rainfall=6.00" Runoff Area=25,470 sf Runoff Volume=0.204 af Runoff Depth=4.18" Tc=10.0 min CN=WQ 3.57 cfs Type II 24-hr 100y 24hr Old Rainfall=6.00"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 533HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 34oS: Offsite to West South Runoff = 5.11 cfs @ 11.96 hrs, Volume= 0.239 af, Depth= 3.82" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Type II 24-hr 100y 24hr Old Rainfall=6.00" Area (sf) CN Adj Description 20,410 78 78 Meadow, non-grazed, HSG D 2,700 98 98 Unconnected roofs, HSG D 9,600 80 80 >75% Grass cover, Good, HSG D 32,710 Weighted Average 30,010 79 79 91.75% Pervious Area 2,700 98 98 8.25% Impervious Area 2,700 100.00% Unconnected Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 2.0 37 0.1620 0.30 Sheet Flow, Grass: Short n= 0.150 P2= 2.87" 3.0 Direct Entry, Make up to 5 minutes 5.0 37 Total Subcatchment 34oS: Offsite to West South Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)5 4 3 2 1 0 Type II 24-hr 100y 24hr Old Rainfall=6.00" Runoff Area=32,710 sf Runoff Volume=0.239 af Runoff Depth=3.82" Flow Length=37' Slope=0.1620 '/' Tc=5.0 min UI Adjusted CN=WQ 5.11 cfs Type II 24-hr 100y 24hr Old Rainfall=6.00"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 534HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 34S: West Woods Runoff = 5.08 cfs @ 12.04 hrs, Volume= 0.306 af, Depth= 1.52" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Type II 24-hr 100y 24hr Old Rainfall=6.00" Area (ac) CN Description 2.423 55 Woods, Good, HSG B 2.423 55 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 8.4 50 0.0600 0.10 Sheet Flow, Woods: Light underbrush n= 0.400 P2= 2.87" 2.7 218 0.0710 1.33 Shallow Concentrated Flow, Woodland Kv= 5.0 fps 11.1 268 Total Subcatchment 34S: West Woods Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)5 4 3 2 1 0 Type II 24-hr 100y 24hr Old Rainfall=6.00" Runoff Area=2.423 ac Runoff Volume=0.306 af Runoff Depth=1.52" Flow Length=268' Tc=11.1 min CN=55 5.08 cfs Type II 24-hr 100y 24hr Old Rainfall=6.00"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 535HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 35S: Southwest Runoff = 6.03 cfs @ 12.13 hrs, Volume= 0.479 af, Depth= 1.52" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Type II 24-hr 100y 24hr Old Rainfall=6.00" Area (ac) CN Description 3.790 55 Woods, Good, HSG B 3.790 55 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 16.0 75 0.0270 0.08 Sheet Flow, Woods: Light underbrush n= 0.400 P2= 2.87" 2.3 195 0.0820 1.43 Shallow Concentrated Flow, Woodland Kv= 5.0 fps 18.3 270 Total Subcatchment 35S: Southwest Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)6 5 4 3 2 1 0 Type II 24-hr 100y 24hr Old Rainfall=6.00" Runoff Area=3.790 ac Runoff Volume=0.479 af Runoff Depth=1.52" Flow Length=270' Tc=18.3 min CN=55 6.03 cfs Type II 24-hr 100y 24hr Old Rainfall=6.00"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 536HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 36oS: Southwest Offsite Runoff = 0.33 cfs @ 11.96 hrs, Volume= 0.018 af, Depth= 5.76" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Type II 24-hr 100y 24hr Old Rainfall=6.00" Area (sf) CN Description 1,628 98 Paved parking, HSG D 1,628 98 100.00% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 5.0 Direct Entry, Subcatchment 36oS: Southwest Offsite Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.36 0.34 0.32 0.3 0.28 0.26 0.24 0.22 0.2 0.18 0.16 0.14 0.12 0.1 0.08 0.06 0.04 0.02 0 Type II 24-hr 100y 24hr Old Rainfall=6.00" Runoff Area=1,628 sf Runoff Volume=0.018 af Runoff Depth=5.76" Tc=5.0 min CN=98 0.33 cfs Type II 24-hr 100y 24hr Old Rainfall=6.00"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 537HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 40.1S: South - East Runoff = 27.06 cfs @ 12.01 hrs, Volume= 1.688 af, Depth= 5.40" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Type II 24-hr 100y 24hr Old Rainfall=6.00" Area (sf) CN Description 29,976 80 >75% Grass cover, Good, HSG D 133,492 98 Paved parking, HSG D 163,468 Weighted Average 29,976 80 18.34% Pervious Area 133,492 98 81.66% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 10.0 Direct Entry, Subcatchment 40.1S: South - East Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)30 28 26 24 22 20 18 16 14 12 10 8 6 4 2 0 Type II 24-hr 100y 24hr Old Rainfall=6.00" Runoff Area=163,468 sf Runoff Volume=1.688 af Runoff Depth=5.40" Tc=10.0 min CN=WQ 27.06 cfs Type II 24-hr 100y 24hr Old Rainfall=6.00"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 538HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 40.2S: South - Central Runoff = 32.75 cfs @ 12.01 hrs, Volume= 2.030 af, Depth= 5.29" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Type II 24-hr 100y 24hr Old Rainfall=6.00" Area (sf) CN Description 47,748 80 >75% Grass cover, Good, HSG D 152,819 98 Paved parking, HSG D 200,567 Weighted Average 47,748 80 23.81% Pervious Area 152,819 98 76.19% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 10.0 Direct Entry, Subcatchment 40.2S: South - Central Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)36 34 32 30 28 26 24 22 20 18 16 14 12 10 8 6 4 2 0 Type II 24-hr 100y 24hr Old Rainfall=6.00" Runoff Area=200,567 sf Runoff Volume=2.030 af Runoff Depth=5.29" Tc=10.0 min CN=WQ 32.75 cfs Type II 24-hr 100y 24hr Old Rainfall=6.00"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 539HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 40.3S: South - West Runoff = 36.63 cfs @ 12.01 hrs, Volume= 2.252 af, Depth= 5.16" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Type II 24-hr 100y 24hr Old Rainfall=6.00" Area (sf) CN Description 69,464 80 >75% Grass cover, Good, HSG D * 158,681 98 Paved parking & roofs, HSG D 228,145 Weighted Average 69,464 80 30.45% Pervious Area 158,681 98 69.55% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 10.0 Direct Entry, Subcatchment 40.3S: South - West Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)40 38 36 34 32 30 28 26 24 22 20 18 16 14 12 10 8 6 4 2 0 Type II 24-hr 100y 24hr Old Rainfall=6.00" Runoff Area=228,145 sf Runoff Volume=2.252 af Runoff Depth=5.16" Tc=10.0 min CN=WQ 36.63 cfs Type II 24-hr 100y 24hr Old Rainfall=6.00"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 540HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 41.1S: South - East Runoff = 11.69 cfs @ 12.01 hrs, Volume= 0.732 af, Depth= 5.47" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Type II 24-hr 100y 24hr Old Rainfall=6.00" Area (sf) CN Description 10,289 80 >75% Grass cover, Good, HSG D 59,695 98 Paved parking, HSG D 69,984 Weighted Average 10,289 80 14.70% Pervious Area 59,695 98 85.30% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 10.0 Direct Entry, Subcatchment 41.1S: South - East Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)13 12 11 10 9 8 7 6 5 4 3 2 1 0 Type II 24-hr 100y 24hr Old Rainfall=6.00" Runoff Area=69,984 sf Runoff Volume=0.732 af Runoff Depth=5.47" Tc=10.0 min CN=WQ 11.69 cfs Type II 24-hr 100y 24hr Old Rainfall=6.00"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 541HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 41.2S: South - Central Runoff = 25.80 cfs @ 12.01 hrs, Volume= 1.607 af, Depth= 5.37" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Type II 24-hr 100y 24hr Old Rainfall=6.00" Area (sf) CN Description 31,015 80 >75% Grass cover, Good, HSG D 125,404 98 Paved parking, HSG D 156,419 Weighted Average 31,015 80 19.83% Pervious Area 125,404 98 80.17% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 10.0 Direct Entry, Subcatchment 41.2S: South - Central Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)28 26 24 22 20 18 16 14 12 10 8 6 4 2 0 Type II 24-hr 100y 24hr Old Rainfall=6.00" Runoff Area=156,419 sf Runoff Volume=1.607 af Runoff Depth=5.37" Tc=10.0 min CN=WQ 25.80 cfs Type II 24-hr 100y 24hr Old Rainfall=6.00"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 542HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 41.3S: South - west Runoff = 5.10 cfs @ 12.01 hrs, Volume= 0.322 af, Depth= 5.64" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Type II 24-hr 100y 24hr Old Rainfall=6.00" Area (sf) CN Description 1,850 80 >75% Grass cover, Good, HSG D 28,034 98 Paved parking, HSG D 29,884 Weighted Average 1,850 80 6.19% Pervious Area 28,034 98 93.81% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 10.0 Direct Entry, Subcatchment 41.3S: South - west Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)5 4 3 2 1 0 Type II 24-hr 100y 24hr Old Rainfall=6.00" Runoff Area=29,884 sf Runoff Volume=0.322 af Runoff Depth=5.64" Tc=10.0 min CN=WQ 5.10 cfs Type II 24-hr 100y 24hr Old Rainfall=6.00"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 543HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 42.1S: South Runoff = 6.57 cfs @ 11.96 hrs, Volume= 0.303 af, Depth= 3.78" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Type II 24-hr 100y 24hr Old Rainfall=6.00" Area (sf) CN Description 41,871 80 >75% Grass cover, Good, HSG D 41,871 80 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 5.0 Direct Entry, Subcatchment 42.1S: South Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)7 6 5 4 3 2 1 0 Type II 24-hr 100y 24hr Old Rainfall=6.00" Runoff Area=41,871 sf Runoff Volume=0.303 af Runoff Depth=3.78" Tc=5.0 min CN=80 6.57 cfs Type II 24-hr 100y 24hr Old Rainfall=6.00"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 544HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 42.2S: Southeast Runoff = 3.85 cfs @ 11.96 hrs, Volume= 0.177 af, Depth= 3.78" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Type II 24-hr 100y 24hr Old Rainfall=6.00" Area (sf) CN Description 24,525 80 >75% Grass cover, Good, HSG D 24,525 80 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 5.0 Direct Entry, Subcatchment 42.2S: Southeast Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)4 3 2 1 0 Type II 24-hr 100y 24hr Old Rainfall=6.00" Runoff Area=24,525 sf Runoff Volume=0.177 af Runoff Depth=3.78" Tc=5.0 min CN=80 3.85 cfs Type II 24-hr 100y 24hr Old Rainfall=6.00"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 545HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 43.1S: East Woods Runoff = 5.73 cfs @ 12.09 hrs, Volume= 0.408 af, Depth= 1.52" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Type II 24-hr 100y 24hr Old Rainfall=6.00" Area (ac) CN Description 3.222 55 Woods, Good, HSG B 3.222 55 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 11.1 75 0.0670 0.11 Sheet Flow, Woods: Light underbrush n= 0.400 P2= 2.87" 4.1 455 0.1380 1.86 Shallow Concentrated Flow, Woodland Kv= 5.0 fps 15.2 530 Total Subcatchment 43.1S: East Woods Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)6 5 4 3 2 1 0 Type II 24-hr 100y 24hr Old Rainfall=6.00" Runoff Area=3.222 ac Runoff Volume=0.408 af Runoff Depth=1.52" Flow Length=530' Tc=15.2 min CN=55 5.73 cfs Type II 24-hr 100y 24hr Old Rainfall=6.00"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 546HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 43.2S: Northeast Woods Runoff = 2.85 cfs @ 12.15 hrs, Volume= 0.236 af, Depth= 1.52" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Type II 24-hr 100y 24hr Old Rainfall=6.00" Area (ac) CN Description 1.862 55 Woods, Good, HSG B 1.862 55 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 14.2 100 0.0650 0.12 Sheet Flow, Woods: Light underbrush n= 0.400 P2= 2.87" 5.3 523 0.1080 1.64 Shallow Concentrated Flow, Woodland Kv= 5.0 fps 19.5 623 Total Subcatchment 43.2S: Northeast Woods Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)3 2 1 0 Type II 24-hr 100y 24hr Old Rainfall=6.00" Runoff Area=1.862 ac Runoff Volume=0.236 af Runoff Depth=1.52" Flow Length=623' Tc=19.5 min CN=55 2.85 cfs Type II 24-hr 100y 24hr Old Rainfall=6.00"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 547HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 44S: North Woods Runoff = 17.17 cfs @ 12.11 hrs, Volume= 1.281 af, Depth= 1.52" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Type II 24-hr 100y 24hr Old Rainfall=6.00" Area (sf) CN Description 441,314 55 Woods, Good, HSG B 441,314 55 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 11.2 75 0.0660 0.11 Sheet Flow, Woods: Light underbrush n= 0.400 P2= 2.87" 5.3 524 0.1090 1.65 Shallow Concentrated Flow, Woodland Kv= 5.0 fps 16.5 599 Total Subcatchment 44S: North Woods Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 Type II 24-hr 100y 24hr Old Rainfall=6.00" Runoff Area=441,314 sf Runoff Volume=1.281 af Runoff Depth=1.52" Flow Length=599' Tc=16.5 min CN=55 17.17 cfs Type II 24-hr 100y 24hr Old Rainfall=6.00"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 548HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 45S: Central - West Runoff = 33.24 cfs @ 12.01 hrs, Volume= 1.988 af, Depth= 5.04" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Type II 24-hr 100y 24hr Old Rainfall=6.00" Area (sf) CN Description 159,000 95 Urban commercial, 85% imp, HSG D 47,303 80 >75% Grass cover, Good, HSG D 206,303 Weighted Average 71,153 79 34.49% Pervious Area 135,150 98 65.51% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 10.0 Direct Entry, Subcatchment 45S: Central - West Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)36 34 32 30 28 26 24 22 20 18 16 14 12 10 8 6 4 2 0 Type II 24-hr 100y 24hr Old Rainfall=6.00" Runoff Area=206,303 sf Runoff Volume=1.988 af Runoff Depth=5.04" Tc=10.0 min CN=WQ 33.24 cfs Type II 24-hr 100y 24hr Old Rainfall=6.00"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 549HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 46S: South Townhomes Runoff = 12.45 cfs @ 12.04 hrs, Volume= 0.774 af, Depth= 4.17" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Type II 24-hr 100y 24hr Old Rainfall=6.00" Area (sf) CN Description 19,025 98 Paved parking, HSG D 78,057 80 >75% Grass cover, Good, HSG D 97,082 Weighted Average 78,057 80 80.40% Pervious Area 19,025 98 19.60% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 11.7 92 0.0320 0.13 Sheet Flow, Grass: Dense n= 0.240 P2= 2.87" 0.9 609 0.5200 10.82 Shallow Concentrated Flow, Grassed Waterway Kv= 15.0 fps 12.6 701 Total Subcatchment 46S: South Townhomes Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)13 12 11 10 9 8 7 6 5 4 3 2 1 0 Type II 24-hr 100y 24hr Old Rainfall=6.00" Runoff Area=97,082 sf Runoff Volume=0.774 af Runoff Depth=4.17" Flow Length=701' Tc=12.6 min CN=WQ 12.45 cfs Type II 24-hr 100y 24hr Old Rainfall=6.00"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 550HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 47S: Bluff Creek Blvd - West Runoff = 19.38 cfs @ 11.96 hrs, Volume= 1.029 af, Depth= 5.38" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Type II 24-hr 100y 24hr Old Rainfall=6.00" Area (ac) CN Description 0.439 80 >75% Grass cover, Good, HSG D 1.856 98 Paved roads w/curbs & sewers, HSG D 2.295 Weighted Average 0.439 80 19.13% Pervious Area 1.856 98 80.87% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 5.0 Direct Entry, Subcatchment 47S: Bluff Creek Blvd - West Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 Type II 24-hr 100y 24hr Old Rainfall=6.00" Runoff Area=2.295 ac Runoff Volume=1.029 af Runoff Depth=5.38" Tc=5.0 min CN=WQ 19.38 cfs Type II 24-hr 100y 24hr Old Rainfall=6.00"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 551HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 48.1S: Direct to 48P (2) Runoff = 14.99 cfs @ 12.01 hrs, Volume= 0.920 af, Depth= 5.13" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Type II 24-hr 100y 24hr Old Rainfall=6.00" Area (sf) CN Description 29,956 80 >75% Grass cover, Good, HSG D 63,765 98 Paved parking, HSG D 93,721 Weighted Average 29,956 80 31.96% Pervious Area 63,765 98 68.04% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 10.0 Direct Entry, Subcatchment 48.1S: Direct to 48P (2) Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 Type II 24-hr 100y 24hr Old Rainfall=6.00" Runoff Area=93,721 sf Runoff Volume=0.920 af Runoff Depth=5.13" Tc=10.0 min CN=WQ 14.99 cfs Type II 24-hr 100y 24hr Old Rainfall=6.00"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 552HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 48S: Bluff Creek Blvd - East Runoff = 29.09 cfs @ 11.96 hrs, Volume= 1.546 af, Depth= 5.39" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Type II 24-hr 100y 24hr Old Rainfall=6.00" Area (ac) CN Description 0.642 80 >75% Grass cover, Good, HSG D 2.799 98 Paved roads w/curbs & sewers, HSG D 3.441 Weighted Average 0.642 80 18.66% Pervious Area 2.799 98 81.34% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 5.0 Direct Entry, Subcatchment 48S: Bluff Creek Blvd - East Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)32 30 28 26 24 22 20 18 16 14 12 10 8 6 4 2 0 Type II 24-hr 100y 24hr Old Rainfall=6.00" Runoff Area=3.441 ac Runoff Volume=1.546 af Runoff Depth=5.39" Tc=5.0 min CN=WQ 29.09 cfs Type II 24-hr 100y 24hr Old Rainfall=6.00"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 553HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Reach 20R: Northwest Drainage [40] Hint: Not Described (Outflow=Inflow) Inflow Area = 15.265 ac, 37.82% Impervious, Inflow Depth = 3.79" for 100y 24hr Old event Inflow = 12.17 cfs @ 12.00 hrs, Volume= 4.824 af Outflow = 12.17 cfs @ 12.00 hrs, Volume= 4.824 af, Atten= 0%, Lag= 0.0 min Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Reach 20R: Northwest Drainage Inflow Outflow Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)13 12 11 10 9 8 7 6 5 4 3 2 1 0 Inflow Area=15.265 ac 12.17 cfs 12.17 cfs Type II 24-hr 100y 24hr Old Rainfall=6.00"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 554HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Reach 21R: Lower Wetland 6 Inflow Area = 15.265 ac, 37.82% Impervious, Inflow Depth = 3.79" for 100y 24hr Old event Inflow = 13.10 cfs @ 11.96 hrs, Volume= 4.824 af Outflow = 12.17 cfs @ 12.00 hrs, Volume= 4.824 af, Atten= 7%, Lag= 2.1 min Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Max. Velocity= 0.95 fps, Min. Travel Time= 3.3 min Avg. Velocity = 0.43 fps, Avg. Travel Time= 7.3 min Peak Storage= 2,383 cf @ 12.00 hrs Average Depth at Peak Storage= 0.58' Bank-Full Depth= 5.99' Flow Area= 570.1 sf, Capacity= 3,072.14 cfs Custom cross-section, Length= 187.0' Slope= 0.0053 '/' (102 Elevation Intervals) Constant n= 0.050 Scattered brush, heavy weeds Inlet Invert= 885.00', Outlet Invert= 884.00' ‡ Offset Elevation Chan.Depth (feet) (feet) (feet) 0.00 890.40 0.00 43.10 886.55 3.85 85.60 884.41 5.99 126.20 885.14 5.26 145.10 890.40 0.00 Depth End Area Perim. Storage Discharge (feet) (sq-ft) (feet) (cubic-feet) (cfs) 0.00 0.0 0.0 0 0.00 0.73 20.1 55.1 3,761 22.32 2.14 121.1 88.4 22,648 324.64 5.99 570.1 146.1 106,618 3,072.14 Type II 24-hr 100y 24hr Old Rainfall=6.00"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 555HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Reach 21R: Lower Wetland 6 Inflow Outflow Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 Inflow Area=15.265 ac Avg. Flow Depth=0.58' Max Vel=0.95 fps n=0.050 L=187.0' S=0.0053 '/' Capacity=3,072.14 cfs 13.10 cfs 12.17 cfs Type II 24-hr 100y 24hr Old Rainfall=6.00"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 556HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Reach 30R: SW Drainage [40] Hint: Not Described (Outflow=Inflow) Inflow Area = 12.794 ac, 6.62% Impervious, Inflow Depth = 2.87" for 100y 24hr Old event Inflow = 14.57 cfs @ 12.08 hrs, Volume= 3.064 af Outflow = 14.57 cfs @ 12.08 hrs, Volume= 3.064 af, Atten= 0%, Lag= 0.0 min Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Reach 30R: SW Drainage Inflow Outflow Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 Inflow Area=12.794 ac 14.57 cfs 14.57 cfs Type II 24-hr 100y 24hr Old Rainfall=6.00"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 557HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Reach 35R: Direct Runoff [40] Hint: Not Described (Outflow=Inflow) Inflow Area = 4.375 ac, 2.67% Impervious, Inflow Depth = 1.87" for 100y 24hr Old event Inflow = 8.40 cfs @ 12.08 hrs, Volume= 0.683 af Outflow = 8.40 cfs @ 12.08 hrs, Volume= 0.683 af, Atten= 0%, Lag= 0.0 min Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Reach 35R: Direct Runoff Inflow Outflow Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)9 8 7 6 5 4 3 2 1 0 Inflow Area=4.375 ac 8.40 cfs 8.40 cfs Type II 24-hr 100y 24hr Old Rainfall=6.00"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 558HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Reach 40R: South Drainage [40] Hint: Not Described (Outflow=Inflow) Inflow Area = 51.070 ac, 48.50% Impervious, Inflow Depth = 2.96" for 100y 24hr Old event Inflow = 60.35 cfs @ 12.12 hrs, Volume= 12.617 af Outflow = 60.35 cfs @ 12.12 hrs, Volume= 12.617 af, Atten= 0%, Lag= 0.0 min Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Reach 40R: South Drainage Inflow Outflow Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)65 60 55 50 45 40 35 30 25 20 15 10 5 0 Inflow Area=51.070 ac 60.35 cfs 60.35 cfs Type II 24-hr 100y 24hr Old Rainfall=6.00"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 559HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Reach 42.1R: South [40] Hint: Not Described (Outflow=Inflow) Inflow Area = 9.843 ac, 71.43% Impervious, Inflow Depth = 3.65" for 100y 24hr Old event Inflow = 15.11 cfs @ 12.13 hrs, Volume= 2.993 af Outflow = 15.11 cfs @ 12.13 hrs, Volume= 2.993 af, Atten= 0%, Lag= 0.0 min Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Reach 42.1R: South Inflow Outflow Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 Inflow Area=9.843 ac 15.11 cfs 15.11 cfs Type II 24-hr 100y 24hr Old Rainfall=6.00"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 560HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Reach 42.2R: Southeast [40] Hint: Not Described (Outflow=Inflow) Inflow Area = 11.515 ac, 75.54% Impervious, Inflow Depth = 3.57" for 100y 24hr Old event Inflow = 8.24 cfs @ 11.98 hrs, Volume= 3.428 af Outflow = 8.24 cfs @ 11.98 hrs, Volume= 3.428 af, Atten= 0%, Lag= 0.0 min Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Reach 42.2R: Southeast Inflow Outflow Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)9 8 7 6 5 4 3 2 1 0 Inflow Area=11.515 ac 8.24 cfs 8.24 cfs Type II 24-hr 100y 24hr Old Rainfall=6.00"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 561HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Reach 44R: Wetland 4 Channel [40] Hint: Not Described (Outflow=Inflow) Inflow Area = 26.490 ac, 34.12% Impervious, Inflow Depth = 2.62" for 100y 24hr Old event Inflow = 32.68 cfs @ 12.12 hrs, Volume= 5.788 af Outflow = 32.68 cfs @ 12.12 hrs, Volume= 5.788 af, Atten= 0%, Lag= 0.0 min Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Reach 44R: Wetland 4 Channel Inflow Outflow Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)36 34 32 30 28 26 24 22 20 18 16 14 12 10 8 6 4 2 0 Inflow Area=26.490 ac 32.68 cfs 32.68 cfs Type II 24-hr 100y 24hr Old Rainfall=6.00"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 562HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Reach 48R: Development to Wetland 4 [40] Hint: Not Described (Outflow=Inflow) Inflow Area = 14.497 ac, 62.34% Impervious, Inflow Depth = 3.54" for 100y 24hr Old event Inflow = 12.85 cfs @ 12.14 hrs, Volume= 4.272 af Outflow = 12.85 cfs @ 12.14 hrs, Volume= 4.272 af, Atten= 0%, Lag= 0.0 min Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Reach 48R: Development to Wetland 4 Inflow Outflow Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 Inflow Area=14.497 ac 12.85 cfs 12.85 cfs Type II 24-hr 100y 24hr Old Rainfall=6.00"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 563HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Reach 50R: Bluff Creek Drainage [40] Hint: Not Described (Outflow=Inflow) Inflow Area = 79.129 ac, 39.67% Impervious, Inflow Depth = 3.11" for 100y 24hr Old event Inflow = 83.46 cfs @ 12.10 hrs, Volume= 20.505 af Outflow = 83.46 cfs @ 12.10 hrs, Volume= 20.505 af, Atten= 0%, Lag= 0.0 min Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Reach 50R: Bluff Creek Drainage Inflow Outflow Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)90 85 80 75 70 65 60 55 50 45 40 35 30 25 20 15 10 5 0 Inflow Area=79.129 ac 83.46 cfs 83.46 cfs Type II 24-hr 100y 24hr Old Rainfall=6.00"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 564HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Pond 21P: North Basin Inflow Area = 14.040 ac, 40.93% Impervious, Inflow Depth = 4.14" for 100y 24hr Old event Inflow = 48.57 cfs @ 12.04 hrs, Volume= 4.840 af Outflow = 9.38 cfs @ 12.92 hrs, Volume= 4.840 af, Atten= 81%, Lag= 52.9 min Discarded = 0.16 cfs @ 12.92 hrs, Volume= 0.403 af Primary = 9.22 cfs @ 12.92 hrs, Volume= 4.438 af Secondary = 0.00 cfs @ 0.00 hrs, Volume= 0.000 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 893.82' @ 12.92 hrs Surf.Area= 115,496 sf Storage= 83,159 cf Plug-Flow detention time= 237.1 min calculated for 4.840 af (100% of inflow) Center-of-Mass det. time= 237.2 min ( 1,073.9 - 836.7 ) Volume Invert Avail.Storage Storage Description #1 889.70' 25,434 cf Sand Section (Prismatic) Listed below (Recalc) 85,376 cf Overall - 594 cf Embedded = 84,782 cf x 30.0% Voids #2 892.00' 5,568 cf Topsoil (Prismatic) Listed below (Recalc) 18,560 cf Overall x 30.0% Voids #3 892.50' 150,182 cf Open Pond (Prismatic) Listed below (Recalc) #4 889.70' 594 cf 8.0" Round Pipe Storage Inside #1 L= 1,703.0' 181,778 cf Total Available Storage Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 889.70 37,120 0 0 892.00 37,120 85,376 85,376 Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 892.00 37,120 0 0 892.50 37,120 18,560 18,560 Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 892.50 37,120 0 0 893.00 38,678 18,950 18,950 894.00 41,838 40,258 59,208 895.00 45,055 43,447 102,654 896.00 50,000 47,528 150,182 Device Routing Invert Outlet Devices #1 Primary 889.70'18.0" Round Culvert L= 45.0' RCP, sq.cut end projecting, Ke= 0.500 Inlet / Outlet Invert= 889.70' / 889.38' S= 0.0071 '/' Cc= 0.900 n= 0.011 Concrete pipe, straight & clean, Flow Area= 1.77 sf #2 Device 1 890.50'12.0" Vert. Orifice/Grate C= 0.600 #3 Device 1 892.74'12.0" Vert. Orifice/Grate C= 0.600 #4 Discarded 889.70'0.060 in/hr Exfiltration over Surface area Phase-In= 0.01' Type II 24-hr 100y 24hr Old Rainfall=6.00"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 565HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC #5 Secondary 894.00'20.0' long x 5.0' breadth Broad-Crested Rectangular Weir Head (feet) 0.20 0.40 0.60 0.80 1.00 1.20 1.40 1.60 1.80 2.00 2.50 3.00 3.50 4.00 4.50 5.00 5.50 Coef. (English) 2.34 2.50 2.70 2.68 2.68 2.66 2.65 2.65 2.65 2.65 2.67 2.66 2.68 2.70 2.74 2.79 2.88 Discarded OutFlow Max=0.16 cfs @ 12.92 hrs HW=893.82' (Free Discharge) 4=Exfiltration (Exfiltration Controls 0.16 cfs) Primary OutFlow Max=9.22 cfs @ 12.92 hrs HW=893.82' TW=885.53' (Dynamic Tailwater) 1=Culvert (Passes 9.22 cfs of 15.61 cfs potential flow) 2=Orifice/Grate (Orifice Controls 6.35 cfs @ 8.08 fps) 3=Orifice/Grate (Orifice Controls 2.87 cfs @ 3.65 fps) Secondary OutFlow Max=0.00 cfs @ 0.00 hrs HW=889.70' TW=885.00' (Dynamic Tailwater) 5=Broad-Crested Rectangular Weir ( Controls 0.00 cfs) Pond 21P: North Basin Inflow Outflow Discarded Primary Secondary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)50 45 40 35 30 25 20 15 10 5 0 Inflow Area=14.040 ac Peak Elev=893.82' Storage=83,159 cf 48.57 cfs 9.38 cfs 0.16 cfs 9.22 cfs 0.00 cfs Type II 24-hr 100y 24hr Old Rainfall=6.00"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 566HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Pond 24P: Northwest Basin Inflow Area = 1.357 ac, 69.40% Impervious, Inflow Depth = 5.16" for 100y 24hr Old event Inflow = 9.49 cfs @ 12.01 hrs, Volume= 0.583 af Outflow = 2.42 cfs @ 12.21 hrs, Volume= 0.583 af, Atten= 74%, Lag= 12.0 min Discarded = 0.03 cfs @ 11.98 hrs, Volume= 0.099 af Primary = 2.39 cfs @ 12.21 hrs, Volume= 0.484 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 915.88' @ 12.21 hrs Surf.Area= 22,000 sf Storage= 11,265 cf Plug-Flow detention time= 350.6 min calculated for 0.583 af (100% of inflow) Center-of-Mass det. time= 350.7 min ( 1,111.1 - 760.4 ) Volume Invert Avail.Storage Storage Description #1 912.80' 7,537 cf Custom Stage Data (Prismatic) Listed below (Recalc) 25,300 cf Overall - 176 cf Embedded = 25,124 cf x 30.0% Voids #2 915.10' 8,729 cf Custom Stage Data (Prismatic) Listed below (Recalc) 22,000 cf Overall - 176 cf Embedded = 21,824 cf x 40.0% Voids #3 912.80' 176 cf 8.0" Round Pipe Storage Inside #1 L= 505.0' #4 915.10' 176 cf 8.0" Round Pipe Storage Inside #2 L= 505.0' 16,619 cf Total Available Storage Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 912.80 11,000 0 0 915.10 11,000 25,300 25,300 Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 915.10 11,000 0 0 917.10 11,000 22,000 22,000 Device Routing Invert Outlet Devices #1 Primary 912.80'12.0" Round Culvert L= 100.0' RCP, sq.cut end projecting, Ke= 0.500 Inlet / Outlet Invert= 912.80' / 912.10' S= 0.0070 '/' Cc= 0.900 n= 0.011 Concrete pipe, straight & clean, Flow Area= 0.79 sf #2 Device 1 913.60'8.0" Vert. Orifice/Grate C= 0.600 #3 Device 1 915.77'8.0" Vert. Orifice/Grate C= 0.600 #4 Discarded 912.80'0.060 in/hr Exfiltration over Surface area Phase-In= 0.01' Discarded OutFlow Max=0.03 cfs @ 11.98 hrs HW=915.14' (Free Discharge) 4=Exfiltration (Exfiltration Controls 0.03 cfs) Primary OutFlow Max=2.39 cfs @ 12.21 hrs HW=915.88' TW=895.75' (Dynamic Tailwater) 1=Culvert (Passes 2.39 cfs of 5.43 cfs potential flow) 2=Orifice/Grate (Orifice Controls 2.35 cfs @ 6.72 fps) 3=Orifice/Grate (Orifice Controls 0.04 cfs @ 1.15 fps) Type II 24-hr 100y 24hr Old Rainfall=6.00"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 567HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Pond 24P: Northwest Basin Inflow Outflow Discarded Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)10 9 8 7 6 5 4 3 2 1 0 Inflow Area=1.357 ac Peak Elev=915.88' Storage=11,265 cf 9.49 cfs 2.42 cfs 0.03 cfs 2.39 cfs Type II 24-hr 100y 24hr Old Rainfall=6.00"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 568HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Pond 25P: West - North Inflow Area = 4.651 ac, 45.17% Impervious, Inflow Depth = 4.68" for 100y 24hr Old event Inflow = 30.49 cfs @ 12.01 hrs, Volume= 1.812 af Outflow = 15.39 cfs @ 12.13 hrs, Volume= 1.812 af, Atten= 50%, Lag= 7.0 min Discarded = 0.04 cfs @ 11.88 hrs, Volume= 0.141 af Primary = 15.35 cfs @ 12.13 hrs, Volume= 1.671 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 916.70' @ 12.13 hrs Surf.Area= 31,120 sf Storage= 22,095 cf Plug-Flow detention time= 170.7 min calculated for 1.812 af (100% of inflow) Center-of-Mass det. time= 170.8 min ( 946.6 - 775.8 ) Volume Invert Avail.Storage Storage Description #1 912.63' 10,662 cf Custom Stage Data (Prismatic) Listed below (Recalc) 35,788 cf Overall - 249 cf Embedded = 35,539 cf x 30.0% Voids #2 914.93' 12,348 cf Custom Stage Data (Prismatic) Listed below (Recalc) 31,120 cf Overall - 249 cf Embedded = 30,871 cf x 40.0% Voids #3 916.93' 9,772 cf Custom Stage Data (Prismatic) Listed below (Recalc) 24,429 cf Overall x 40.0% Voids #4 912.63' 249 cf 8.0" Round Pipe Storage Inside #1 L= 714.0' #5 914.93' 249 cf 8.0" Round Pipe Storage Inside #2 L= 714.0' 33,280 cf Total Available Storage Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 912.63 15,560 0 0 914.93 15,560 35,788 35,788 Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 914.93 15,560 0 0 916.93 15,560 31,120 31,120 Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 916.93 15,560 0 0 918.50 15,560 24,429 24,429 Device Routing Invert Outlet Devices #1 Primary 912.63'18.0" Round Culvert L= 153.0' RCP, sq.cut end projecting, Ke= 0.500 Inlet / Outlet Invert= 912.63' / 911.10' S= 0.0100 '/' Cc= 0.900 n= 0.011 Concrete pipe, straight & clean, Flow Area= 1.77 sf #2 Device 1 913.43'18.0" Vert. Orifice/Grate C= 0.600 #3 Device 1 915.67'18.0" Vert. Orifice/Grate C= 0.600 #4 Discarded 912.63'0.060 in/hr Exfiltration over Surface area Phase-In= 0.01' Type II 24-hr 100y 24hr Old Rainfall=6.00"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 569HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Discarded OutFlow Max=0.04 cfs @ 11.88 hrs HW=914.94' (Free Discharge) 4=Exfiltration (Exfiltration Controls 0.04 cfs) Primary OutFlow Max=15.35 cfs @ 12.13 hrs HW=916.70' TW=898.64' (Dynamic Tailwater) 1=Culvert (Barrel Controls 15.35 cfs @ 8.68 fps) 2=Orifice/Grate (Passes < 13.51 cfs potential flow) 3=Orifice/Grate (Passes < 4.49 cfs potential flow) Pond 25P: West - North Inflow Outflow Discarded Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)34 32 30 28 26 24 22 20 18 16 14 12 10 8 6 4 2 0 Inflow Area=4.651 ac Peak Elev=916.70' Storage=22,095 cf 30.49 cfs 15.39 cfs 0.04 cfs 15.35 cfs Type II 24-hr 100y 24hr Old Rainfall=6.00"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 570HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Pond 28P: Avienda Pkwy - NW Basin Inflow Area = 2.793 ac, 66.00% Impervious, Inflow Depth = 5.09" for 100y 24hr Old event Inflow = 16.53 cfs @ 12.06 hrs, Volume= 1.184 af Outflow = 2.27 cfs @ 12.55 hrs, Volume= 1.184 af, Atten= 86%, Lag= 29.0 min Discarded = 0.09 cfs @ 12.10 hrs, Volume= 0.292 af Primary = 2.19 cfs @ 12.55 hrs, Volume= 0.892 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 912.56' @ 12.55 hrs Surf.Area= 61,812 sf Storage= 28,459 cf Plug-Flow detention time= 540.0 min calculated for 1.184 af (100% of inflow) Center-of-Mass det. time= 540.0 min ( 1,307.0 - 767.0 ) Volume Invert Avail.Storage Storage Description #1 909.73' 21,177 cf Custom Stage Data (Prismatic) Listed below (Recalc) 71,084 cf Overall - 495 cf Embedded = 70,589 cf x 30.0% Voids #2 912.03' 24,527 cf Custom Stage Data (Prismatic) Listed below (Recalc) 61,812 cf Overall - 495 cf Embedded = 61,317 cf x 40.0% Voids #3 909.73' 495 cf 8.0" Round Pipe Storage Inside #1 L= 1,418.0' #4 912.03' 495 cf 8.0" Round Pipe Storage Inside #2 L= 1,418.0' 46,693 cf Total Available Storage Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 909.73 30,906 0 0 912.03 30,906 71,084 71,084 Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 912.03 30,906 0 0 914.03 30,906 61,812 61,812 Device Routing Invert Outlet Devices #1 Primary 909.73'12.0" Round Culvert L= 148.0' RCP, sq.cut end projecting, Ke= 0.500 Inlet / Outlet Invert= 909.73' / 908.25' S= 0.0100 '/' Cc= 0.900 n= 0.011 Concrete pipe, straight & clean, Flow Area= 0.79 sf #2 Device 1 910.53'8.0" Vert. Orifice/Grate C= 0.600 #3 Device 1 912.77'8.0" Vert. Orifice/Grate C= 0.600 #4 Discarded 909.73'0.060 in/hr Exfiltration over Surface area Phase-In= 0.01' Discarded OutFlow Max=0.09 cfs @ 12.10 hrs HW=912.03' (Free Discharge) 4=Exfiltration (Exfiltration Controls 0.09 cfs) Primary OutFlow Max=2.19 cfs @ 12.55 hrs HW=912.56' TW=895.42' (Dynamic Tailwater) 1=Culvert (Passes 2.19 cfs of 5.22 cfs potential flow) 2=Orifice/Grate (Orifice Controls 2.19 cfs @ 6.27 fps) 3=Orifice/Grate ( Controls 0.00 cfs) Type II 24-hr 100y 24hr Old Rainfall=6.00"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 571HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Pond 28P: Avienda Pkwy - NW Basin Inflow Outflow Discarded Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 Inflow Area=2.793 ac Peak Elev=912.56' Storage=28,459 cf 16.53 cfs 2.27 cfs 0.09 cfs 2.19 cfs Type II 24-hr 100y 24hr Old Rainfall=6.00"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 572HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Pond 31P: West South Basin Inflow Area = 0.754 ac, 22.84% Impervious, Inflow Depth = 4.23" for 100y 24hr Old event Inflow = 3.98 cfs @ 12.07 hrs, Volume= 0.266 af Outflow = 2.32 cfs @ 12.20 hrs, Volume= 0.266 af, Atten= 42%, Lag= 7.9 min Discarded = 0.01 cfs @ 12.20 hrs, Volume= 0.021 af Primary = 2.31 cfs @ 12.20 hrs, Volume= 0.245 af Secondary = 0.00 cfs @ 0.00 hrs, Volume= 0.000 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 923.92' @ 12.20 hrs Surf.Area= 7,485 sf Storage= 2,562 cf Plug-Flow detention time= 154.8 min calculated for 0.266 af (100% of inflow) Center-of-Mass det. time= 154.9 min ( 952.2 - 797.4 ) Volume Invert Avail.Storage Storage Description #1 920.93' 1,671 cf Sand Setion (Prismatic) Listed below (Recalc) 5,614 cf Overall - 44 cf Embedded = 5,571 cf x 30.0% Voids #2 923.23' 366 cf Topsoil (Prismatic) Listed below (Recalc) 1,221 cf Overall x 30.0% Voids #3 923.73' 11,497 cf Open pond (Prismatic) Listed below (Recalc) #4 920.93' 44 cf 8.0" Round Pipe Storage Inside #1 L= 125.0' 13,578 cf Total Available Storage Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 920.93 2,441 0 0 923.23 2,441 5,614 5,614 Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 923.23 2,441 0 0 923.73 2,441 1,221 1,221 Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 923.73 2,441 0 0 926.60 4,878 10,503 10,503 926.70 15,000 994 11,497 Device Routing Invert Outlet Devices #1 Primary 920.93'12.0" Round Culvert L= 46.0' RCP, sq.cut end projecting, Ke= 0.500 Inlet / Outlet Invert= 920.93' / 920.80' S= 0.0028 '/' Cc= 0.900 n= 0.011 Concrete pipe, straight & clean, Flow Area= 0.79 sf #2 Device 1 921.73'8.0" Vert. Orifice/Grate C= 0.600 #3 Device 1 923.84'8.0" Vert. Orifice/Grate C= 0.600 #4 Secondary 925.60'20.0' long x 5.0' breadth Broad-Crested Rectangular Weir Head (feet) 0.20 0.40 0.60 0.80 1.00 1.20 1.40 1.60 1.80 2.00 2.50 3.00 3.50 4.00 4.50 5.00 5.50 Type II 24-hr 100y 24hr Old Rainfall=6.00"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 573HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Coef. (English) 2.34 2.50 2.70 2.68 2.68 2.66 2.65 2.65 2.65 2.65 2.67 2.66 2.68 2.70 2.74 2.79 2.88 #5 Discarded 920.93'0.060 in/hr Exfiltration over Horizontal area Phase-In= 0.01' Discarded OutFlow Max=0.01 cfs @ 12.20 hrs HW=923.92' (Free Discharge) 5=Exfiltration (Exfiltration Controls 0.01 cfs) Primary OutFlow Max=2.31 cfs @ 12.20 hrs HW=923.92' TW=921.66' (Dynamic Tailwater) 1=Culvert (Passes 2.31 cfs of 5.69 cfs potential flow) 2=Orifice/Grate (Orifice Controls 2.29 cfs @ 6.56 fps) 3=Orifice/Grate (Orifice Controls 0.02 cfs @ 0.97 fps) Secondary OutFlow Max=0.00 cfs @ 0.00 hrs HW=920.93' TW=920.58' (Dynamic Tailwater) 4=Broad-Crested Rectangular Weir ( Controls 0.00 cfs) Pond 31P: West South Basin Inflow Outflow Discarded Primary Secondary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)4 3 2 1 0 Inflow Area=0.754 ac Peak Elev=923.92' Storage=2,562 cf 3.98 cfs 2.32 cfs 0.01 cfs 2.31 cfs 0.00 cfs Type II 24-hr 100y 24hr Old Rainfall=6.00"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 574HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Pond 32P: Drop MH [57] Hint: Peaked at 898.64' (Flood elevation advised) Inflow Area = 4.651 ac, 45.17% Impervious, Inflow Depth = 4.31" for 100y 24hr Old event Inflow = 15.35 cfs @ 12.13 hrs, Volume= 1.671 af Outflow = 15.35 cfs @ 12.13 hrs, Volume= 1.671 af, Atten= 0%, Lag= 0.0 min Primary = 15.35 cfs @ 12.13 hrs, Volume= 1.671 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 898.64' @ 12.13 hrs Device Routing Invert Outlet Devices #1 Primary 894.50'18.0" Round Culvert L= 90.0' RCP, sq.cut end projecting, Ke= 0.500 Inlet / Outlet Invert= 894.50' / 894.00' S= 0.0056 '/' Cc= 0.900 n= 0.011 Concrete pipe, straight & clean, Flow Area= 1.77 sf Primary OutFlow Max=15.35 cfs @ 12.13 hrs HW=898.64' TW=893.18' (Dynamic Tailwater) 1=Culvert (Barrel Controls 15.35 cfs @ 8.68 fps) Pond 32P: Drop MH Inflow Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 Inflow Area=4.651 ac Peak Elev=898.64' 18.0" Round Culvert n=0.011 L=90.0' S=0.0056 '/' 15.35 cfs 15.35 cfs Type II 24-hr 100y 24hr Old Rainfall=6.00"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 575HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Pond 33P: Wetland 3 Inflow Area = 5.208 ac, 12.12% Impervious, Inflow Depth = 4.19" for 100y 24hr Old event Inflow = 28.84 cfs @ 12.00 hrs, Volume= 1.817 af Outflow = 3.05 cfs @ 12.67 hrs, Volume= 1.818 af, Atten= 89%, Lag= 40.0 min Primary = 3.05 cfs @ 12.67 hrs, Volume= 1.818 af Secondary = 0.00 cfs @ 0.00 hrs, Volume= 0.000 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 921.73' @ 12.67 hrs Surf.Area= 57,848 sf Storage= 38,342 cf Plug-Flow detention time= 172.8 min calculated for 1.817 af (100% of inflow) Center-of-Mass det. time= 173.6 min ( 968.8 - 795.1 ) Volume Invert Avail.Storage Storage Description #1 920.58' 140,121 cf Custom Stage Data (Prismatic) Listed below (Recalc) Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 920.58 100 0 0 921.00 30,000 6,321 6,321 922.00 68,200 49,100 55,421 923.00 101,200 84,700 140,121 Device Routing Invert Outlet Devices #1 Primary 920.58'12.0" Round Culvert L= 455.0' RCP, end-section conforming to fill, Ke= 0.500 Inlet / Outlet Invert= 920.58' / 911.02' S= 0.0210 '/' Cc= 0.900 n= 0.013 Concrete pipe, straight & clean, Flow Area= 0.79 sf #2 Secondary 921.90'Asymmetrical Weir, C= 3.27 Offset (feet) 0.00 19.00 40.00 50.00 76.00 103.00 Height (feet) 1.50 0.50 0.00 0.00 0.50 1.50 Primary OutFlow Max=3.05 cfs @ 12.67 hrs HW=921.73' TW=908.38' (Dynamic Tailwater) 1=Culvert (Inlet Controls 3.05 cfs @ 3.88 fps) Secondary OutFlow Max=0.00 cfs @ 0.00 hrs HW=920.58' TW=0.00' (Dynamic Tailwater) 2=Asymmetrical Weir ( Controls 0.00 cfs) Type II 24-hr 100y 24hr Old Rainfall=6.00"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 576HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Pond 33P: Wetland 3 Inflow Outflow Primary Secondary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)32 30 28 26 24 22 20 18 16 14 12 10 8 6 4 2 0 Inflow Area=5.208 ac Peak Elev=921.73' Storage=38,342 cf 28.84 cfs 3.05 cfs 3.05 cfs 0.00 cfs Type II 24-hr 100y 24hr Old Rainfall=6.00"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 577HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Pond 34P: West - South (existing) Inflow Area = 8.382 ac, 8.27% Impervious, Inflow Depth = 3.38" for 100y 24hr Old event Inflow = 11.12 cfs @ 12.00 hrs, Volume= 2.363 af Outflow = 6.23 cfs @ 12.16 hrs, Volume= 2.363 af, Atten= 44%, Lag= 10.0 min Primary = 6.23 cfs @ 12.16 hrs, Volume= 2.363 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 908.74' @ 12.16 hrs Surf.Area= 0.168 ac Storage= 0.110 af Plug-Flow detention time= (not calculated: outflow precedes inflow) Center-of-Mass det. time= 6.0 min ( 946.5 - 940.5 ) Volume Invert Avail.Storage Storage Description #1 907.00' 1.603 af Custom Stage Data (Prismatic) Listed below (Recalc) Elevation Surf.Area Inc.Store Cum.Store (feet) (acres) (acre-feet) (acre-feet) 907.00 0.000 0.000 0.000 908.00 0.055 0.028 0.028 909.00 0.208 0.131 0.159 910.00 0.413 0.310 0.469 911.00 0.573 0.493 0.962 912.00 0.709 0.641 1.603 Device Routing Invert Outlet Devices #1 Primary 907.00'15.0" Round Culvert L= 48.8' RCP, end-section conforming to fill, Ke= 0.500 Inlet / Outlet Invert= 907.00' / 906.00' S= 0.0205 '/' Cc= 0.900 n= 0.013 Concrete pipe, straight & clean, Flow Area= 1.23 sf #2 Primary 911.22'Asymmetrical Weir, C= 3.27 Offset (feet) 0.00 12.00 18.00 28.00 49.00 88.00 Height (feet) 1.35 0.02 0.00 0.15 0.70 1.35 Primary OutFlow Max=6.23 cfs @ 12.16 hrs HW=908.74' TW=0.00' (Dynamic Tailwater) 1=Culvert (Inlet Controls 6.23 cfs @ 5.08 fps) 2=Asymmetrical Weir ( Controls 0.00 cfs) Type II 24-hr 100y 24hr Old Rainfall=6.00"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 578HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Pond 34P: West - South (existing) Inflow Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)12 11 10 9 8 7 6 5 4 3 2 1 0 Inflow Area=8.382 ac Peak Elev=908.74' Storage=0.110 af 11.12 cfs 6.23 cfs Type II 24-hr 100y 24hr Old Rainfall=6.00"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 579HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Pond 35P: Drop MH [57] Hint: Peaked at 895.75' (Flood elevation advised) Inflow Area = 1.357 ac, 69.40% Impervious, Inflow Depth = 4.28" for 100y 24hr Old event Inflow = 2.39 cfs @ 12.21 hrs, Volume= 0.484 af Outflow = 2.39 cfs @ 12.21 hrs, Volume= 0.484 af, Atten= 0%, Lag= 0.0 min Primary = 2.39 cfs @ 12.21 hrs, Volume= 0.484 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 895.75' @ 12.21 hrs Device Routing Invert Outlet Devices #1 Primary 894.80'12.0" Round Culvert L= 150.0' RCP, sq.cut end projecting, Ke= 0.500 Inlet / Outlet Invert= 894.80' / 894.00' S= 0.0053 '/' Cc= 0.900 n= 0.011 Concrete pipe, straight & clean, Flow Area= 0.79 sf Primary OutFlow Max=2.39 cfs @ 12.21 hrs HW=895.75' TW=893.35' (Dynamic Tailwater) 1=Culvert (Barrel Controls 2.39 cfs @ 4.00 fps) Pond 35P: Drop MH Inflow Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)2 1 0 Inflow Area=1.357 ac Peak Elev=895.75' 12.0" Round Culvert n=0.011 L=150.0' S=0.0053 '/' 2.39 cfs 2.39 cfs Type II 24-hr 100y 24hr Old Rainfall=6.00"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 580HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Pond 36P: Drop MH [57] Hint: Peaked at 895.42' (Flood elevation advised) Inflow Area = 2.793 ac, 66.00% Impervious, Inflow Depth = 3.83" for 100y 24hr Old event Inflow = 2.19 cfs @ 12.55 hrs, Volume= 0.892 af Outflow = 2.19 cfs @ 12.55 hrs, Volume= 0.892 af, Atten= 0%, Lag= 0.0 min Primary = 2.19 cfs @ 12.55 hrs, Volume= 0.892 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 895.42' @ 12.55 hrs Device Routing Invert Outlet Devices #1 Primary 894.50'12.0" Round Culvert L= 100.0' RCP, sq.cut end projecting, Ke= 0.500 Inlet / Outlet Invert= 894.50' / 894.00' S= 0.0050 '/' Cc= 0.900 n= 0.011 Concrete pipe, straight & clean, Flow Area= 0.79 sf Primary OutFlow Max=2.19 cfs @ 12.55 hrs HW=895.42' TW=893.72' (Dynamic Tailwater) 1=Culvert (Barrel Controls 2.19 cfs @ 3.77 fps) Pond 36P: Drop MH Inflow Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)2 1 0 Inflow Area=2.793 ac Peak Elev=895.42' 12.0" Round Culvert n=0.011 L=100.0' S=0.0050 '/' 2.19 cfs 2.19 cfs Type II 24-hr 100y 24hr Old Rainfall=6.00"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 581HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Pond 40.1P: South East Inflow Area = 3.753 ac, 81.66% Impervious, Inflow Depth = 5.40" for 100y 24hr Old event Inflow = 27.06 cfs @ 12.01 hrs, Volume= 1.688 af Outflow = 2.23 cfs @ 12.60 hrs, Volume= 1.688 af, Atten= 92%, Lag= 35.1 min Discarded = 0.14 cfs @ 12.07 hrs, Volume= 0.499 af Primary = 2.09 cfs @ 12.60 hrs, Volume= 1.189 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 896.38' @ 12.60 hrs Surf.Area= 102,096 sf Storage= 43,869 cf Plug-Flow detention time= 681.1 min calculated for 1.688 af (100% of inflow) Center-of-Mass det. time= 681.1 min ( 1,434.8 - 753.7 ) Volume Invert Avail.Storage Storage Description #1 893.70' 34,978 cf Custom Stage Data (Prismatic) Listed below (Recalc) 117,410 cf Overall - 818 cf Embedded = 116,593 cf x 30.0% Voids #2 896.00' 40,511 cf Custom Stage Data (Prismatic) Listed below (Recalc) 102,096 cf Overall - 818 cf Embedded = 101,278 cf x 40.0% Voids #3 893.70' 818 cf 8.0" Round Pipe Storage Inside #1 L= 2,343.0' #4 896.00' 818 cf 8.0" Round Pipe Storage Inside #2 L= 2,343.0' 77,125 cf Total Available Storage Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 893.70 51,048 0 0 896.00 51,048 117,410 117,410 Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 896.00 51,048 0 0 898.00 51,048 102,096 102,096 Device Routing Invert Outlet Devices #1 Primary 893.70'12.0" Round Culvert L= 260.0' RCP, sq.cut end projecting, Ke= 0.500 Inlet / Outlet Invert= 893.70' / 891.88' S= 0.0070 '/' Cc= 0.900 n= 0.011 Concrete pipe, straight & clean, Flow Area= 0.79 sf #2 Device 1 894.50'8.0" Vert. Orifice/Grate C= 0.600 #3 Device 1 896.67'12.0" Vert. Orifice/Grate C= 0.600 #4 Discarded 893.70'0.060 in/hr Exfiltration over Surface area Phase-In= 0.01' Discarded OutFlow Max=0.14 cfs @ 12.07 hrs HW=896.03' (Free Discharge) 4=Exfiltration (Exfiltration Controls 0.14 cfs) Primary OutFlow Max=2.09 cfs @ 12.60 hrs HW=896.38' TW=0.00' (Dynamic Tailwater) 1=Culvert (Passes 2.09 cfs of 4.35 cfs potential flow) 2=Orifice/Grate (Orifice Controls 2.09 cfs @ 5.99 fps) 3=Orifice/Grate ( Controls 0.00 cfs) Type II 24-hr 100y 24hr Old Rainfall=6.00"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 582HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Pond 40.1P: South East Inflow Outflow Discarded Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)30 28 26 24 22 20 18 16 14 12 10 8 6 4 2 0 Inflow Area=3.753 ac Peak Elev=896.38' Storage=43,869 cf 27.06 cfs 2.23 cfs 0.14 cfs2.09 cfs Type II 24-hr 100y 24hr Old Rainfall=6.00"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 583HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Pond 40.2P: South Central Inflow Area = 4.604 ac, 76.19% Impervious, Inflow Depth = 5.29" for 100y 24hr Old event Inflow = 32.75 cfs @ 12.01 hrs, Volume= 2.030 af Outflow = 1.61 cfs @ 13.20 hrs, Volume= 2.030 af, Atten= 95%, Lag= 71.5 min Discarded = 0.13 cfs @ 2.78 hrs, Volume= 0.923 af Primary = 1.48 cfs @ 13.20 hrs, Volume= 1.107 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 896.91' @ 13.20 hrs Surf.Area= 94,313 sf Storage= 55,137 cf Plug-Flow detention time= 1,039.4 min calculated for 2.030 af (100% of inflow) Center-of-Mass det. time= 1,039.5 min ( 1,796.1 - 756.6 ) Volume Invert Avail.Storage Storage Description #1 895.00' 64,623 cf Custom Stage Data (Prismatic) Listed below (Recalc) 216,920 cf Overall - 1,511 cf Embedded = 215,409 cf x 30.0% Voids #2 897.30' 74,846 cf Custom Stage Data (Prismatic) Listed below (Recalc) 188,626 cf Overall - 1,511 cf Embedded = 187,115 cf x 40.0% Voids #3 895.00' 1,511 cf 8.0" Round Pipe Storage Inside #1 L= 4,328.0' #4 897.30' 1,511 cf 8.0" Round Pipe Storage Inside #2 L= 4,328.0' 142,490 cf Total Available Storage Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 895.00 94,313 0 0 897.30 94,313 216,920 216,920 Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 897.30 94,313 0 0 899.30 94,313 188,626 188,626 Device Routing Invert Outlet Devices #1 Primary 895.00'12.0" Round Culvert L= 250.0' RCP, sq.cut end projecting, Ke= 0.500 Inlet / Outlet Invert= 895.00' / 893.25' S= 0.0070 '/' Cc= 0.900 n= 0.011 Concrete pipe, straight & clean, Flow Area= 0.79 sf #2 Device 1 895.80'8.0" Vert. Orifice/Grate C= 0.600 #3 Device 1 897.97'8.0" Vert. Orifice/Grate C= 0.600 #4 Discarded 895.00'0.060 in/hr Exfiltration over Surface area Phase-In= 0.01' Discarded OutFlow Max=0.13 cfs @ 2.78 hrs HW=895.01' (Free Discharge) 4=Exfiltration (Exfiltration Controls 0.13 cfs) Primary OutFlow Max=1.48 cfs @ 13.20 hrs HW=896.91' TW=0.00' (Dynamic Tailwater) 1=Culvert (Passes 1.48 cfs of 3.85 cfs potential flow) 2=Orifice/Grate (Orifice Controls 1.48 cfs @ 4.25 fps) 3=Orifice/Grate ( Controls 0.00 cfs) Type II 24-hr 100y 24hr Old Rainfall=6.00"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 584HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Pond 40.2P: South Central Inflow Outflow Discarded Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)36 34 32 30 28 26 24 22 20 18 16 14 12 10 8 6 4 2 0 Inflow Area=4.604 ac Peak Elev=896.91' Storage=55,137 cf 32.75 cfs 1.61 cfs 0.13 cfs1.48 cfs Type II 24-hr 100y 24hr Old Rainfall=6.00"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 585HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Pond 40.3P: South Inflow Area = 5.237 ac, 69.55% Impervious, Inflow Depth = 5.16" for 100y 24hr Old event Inflow = 36.63 cfs @ 12.01 hrs, Volume= 2.252 af Outflow = 2.45 cfs @ 12.78 hrs, Volume= 2.252 af, Atten= 93%, Lag= 46.1 min Discarded = 0.17 cfs @ 12.03 hrs, Volume= 0.617 af Primary = 2.29 cfs @ 12.78 hrs, Volume= 1.635 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 900.48' @ 12.78 hrs Surf.Area= 120,464 sf Storage= 59,306 cf Plug-Flow detention time= 680.8 min calculated for 2.252 af (100% of inflow) Center-of-Mass det. time= 680.9 min ( 1,441.2 - 760.3 ) Volume Invert Avail.Storage Storage Description #1 897.50' 41,271 cf Custom Stage Data (Prismatic) Listed below (Recalc) 138,534 cf Overall - 965 cf Embedded = 137,569 cf x 30.0% Voids #2 899.80' 47,800 cf Custom Stage Data (Prismatic) Listed below (Recalc) 120,464 cf Overall - 965 cf Embedded = 119,499 cf x 40.0% Voids #3 897.50' 965 cf 8.0" Round Pipe Storage Inside #1 L= 2,764.0' #4 899.80' 965 cf 8.0" Round Pipe Storage Inside #2 L= 2,764.0' 91,000 cf Total Available Storage Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 897.50 60,232 0 0 899.80 60,232 138,534 138,534 Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 899.80 60,232 0 0 901.80 60,232 120,464 120,464 Device Routing Invert Outlet Devices #1 Primary 897.50'12.0" Round Culvert L= 175.0' RCP, sq.cut end projecting, Ke= 0.500 Inlet / Outlet Invert= 897.50' / 896.27' S= 0.0070 '/' Cc= 0.900 n= 0.011 Concrete pipe, straight & clean, Flow Area= 0.79 sf #2 Device 1 898.30'8.0" Vert. Orifice/Grate C= 0.600 #3 Device 1 900.47'8.0" Vert. Orifice/Grate C= 0.600 #4 Discarded 897.50'0.060 in/hr Exfiltration over Surface area Phase-In= 0.01' Discarded OutFlow Max=0.17 cfs @ 12.03 hrs HW=899.85' (Free Discharge) 4=Exfiltration (Exfiltration Controls 0.17 cfs) Primary OutFlow Max=2.29 cfs @ 12.78 hrs HW=900.48' TW=0.00' (Dynamic Tailwater) 1=Culvert (Passes 2.29 cfs of 4.85 cfs potential flow) 2=Orifice/Grate (Orifice Controls 2.29 cfs @ 6.55 fps) 3=Orifice/Grate (Orifice Controls 0.00 cfs @ 0.41 fps) Type II 24-hr 100y 24hr Old Rainfall=6.00"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 586HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Pond 40.3P: South Inflow Outflow Discarded Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)40 38 36 34 32 30 28 26 24 22 20 18 16 14 12 10 8 6 4 2 0 Inflow Area=5.237 ac Peak Elev=900.48' Storage=59,306 cf 36.63 cfs 2.45 cfs 0.17 cfs2.29 cfs Type II 24-hr 100y 24hr Old Rainfall=6.00"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 587HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Pond 41.1P: South East Inflow Area = 1.607 ac, 85.30% Impervious, Inflow Depth = 5.47" for 100y 24hr Old event Inflow = 11.69 cfs @ 12.01 hrs, Volume= 0.732 af Outflow = 0.87 cfs @ 12.66 hrs, Volume= 0.732 af, Atten= 93%, Lag= 39.0 min Discarded = 0.06 cfs @ 3.24 hrs, Volume= 0.409 af Primary = 0.80 cfs @ 12.66 hrs, Volume= 0.324 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 889.36' @ 12.66 hrs Surf.Area= 45,024 sf Storage= 18,911 cf Plug-Flow detention time= 1,069.6 min calculated for 0.732 af (100% of inflow) Center-of-Mass det. time= 1,069.7 min ( 1,821.5 - 751.8 ) Volume Invert Avail.Storage Storage Description #1 888.00' 30,850 cf Custom Stage Data (Prismatic) Listed below (Recalc) 103,555 cf Overall - 721 cf Embedded = 102,834 cf x 30.0% Voids #2 890.30' 35,731 cf Custom Stage Data (Prismatic) Listed below (Recalc) 90,048 cf Overall - 721 cf Embedded = 89,327 cf x 40.0% Voids #3 888.00' 721 cf 8.0" Round Pipe Storage Inside #1 L= 2,066.0' #4 890.30' 721 cf 8.0" Round Pipe Storage Inside #2 L= 2,066.0' 68,023 cf Total Available Storage Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 888.00 45,024 0 0 890.30 45,024 103,555 103,555 Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 890.30 45,024 0 0 892.30 45,024 90,048 90,048 Device Routing Invert Outlet Devices #1 Primary 888.00'12.0" Round Culvert L= 70.0' RCP, sq.cut end projecting, Ke= 0.500 Inlet / Outlet Invert= 888.00' / 887.51' S= 0.0070 '/' Cc= 0.900 n= 0.011 Concrete pipe, straight & clean, Flow Area= 0.79 sf #2 Device 1 888.80'8.0" Vert. Orifice/Grate C= 0.600 #3 Device 1 890.97'8.0" Vert. Orifice/Grate C= 0.600 #4 Discarded 888.00'0.060 in/hr Exfiltration over Surface area Phase-In= 0.01' Discarded OutFlow Max=0.06 cfs @ 3.24 hrs HW=888.01' (Free Discharge) 4=Exfiltration (Exfiltration Controls 0.06 cfs) Primary OutFlow Max=0.80 cfs @ 12.66 hrs HW=889.36' TW=0.00' (Dynamic Tailwater) 1=Culvert (Passes 0.80 cfs of 3.32 cfs potential flow) 2=Orifice/Grate (Orifice Controls 0.80 cfs @ 2.55 fps) 3=Orifice/Grate ( Controls 0.00 cfs) Type II 24-hr 100y 24hr Old Rainfall=6.00"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 588HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Pond 41.1P: South East Inflow Outflow Discarded Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)13 12 11 10 9 8 7 6 5 4 3 2 1 0 Inflow Area=1.607 ac Peak Elev=889.36' Storage=18,911 cf 11.69 cfs 0.87 cfs 0.06 cfs0.80 cfs Type II 24-hr 100y 24hr Old Rainfall=6.00"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 589HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Pond 41.2P: South Central Inflow Area = 3.591 ac, 80.17% Impervious, Inflow Depth = 5.37" for 100y 24hr Old event Inflow = 25.80 cfs @ 12.01 hrs, Volume= 1.607 af Outflow = 12.61 cfs @ 12.13 hrs, Volume= 1.607 af, Atten= 51%, Lag= 7.2 min Discarded = 0.05 cfs @ 11.89 hrs, Volume= 0.153 af Primary = 12.56 cfs @ 12.13 hrs, Volume= 1.454 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 885.34' @ 12.13 hrs Surf.Area= 33,574 sf Storage= 22,276 cf Plug-Flow detention time= 212.5 min calculated for 1.607 af (100% of inflow) Center-of-Mass det. time= 212.6 min ( 967.0 - 754.5 ) Volume Invert Avail.Storage Storage Description #1 881.50' 11,502 cf Custom Stage Data (Prismatic) Listed below (Recalc) 38,610 cf Overall - 269 cf Embedded = 38,341 cf x 30.0% Voids #2 883.80' 13,322 cf Custom Stage Data (Prismatic) Listed below (Recalc) 33,574 cf Overall - 269 cf Embedded = 33,305 cf x 40.0% Voids #3 881.50' 269 cf 8.0" Round Pipe Storage Inside #1 L= 770.0' #4 883.80' 269 cf 8.0" Round Pipe Storage Inside #2 L= 770.0' 25,362 cf Total Available Storage Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 881.50 16,787 0 0 883.80 16,787 38,610 38,610 Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 883.80 16,787 0 0 885.80 16,787 33,574 33,574 Device Routing Invert Outlet Devices #1 Primary 881.50'18.0" Round Culvert L= 22.0' RCP, sq.cut end projecting, Ke= 0.500 Inlet / Outlet Invert= 881.50' / 881.28' S= 0.0100 '/' Cc= 0.900 n= 0.011 Concrete pipe, straight & clean, Flow Area= 1.77 sf #2 Device 1 882.30'15.0" Vert. Orifice/Grate C= 0.600 #3 Device 1 884.47'18.0" Vert. Orifice/Grate C= 0.600 #4 Discarded 881.50'0.060 in/hr Exfiltration over Surface area Phase-In= 0.01' Discarded OutFlow Max=0.05 cfs @ 11.89 hrs HW=883.82' (Free Discharge) 4=Exfiltration (Exfiltration Controls 0.05 cfs) Primary OutFlow Max=12.56 cfs @ 12.13 hrs HW=885.34' TW=0.00' (Dynamic Tailwater) 1=Culvert (Passes 12.56 cfs of 14.96 cfs potential flow) 2=Orifice/Grate (Orifice Controls 9.18 cfs @ 7.48 fps) 3=Orifice/Grate (Orifice Controls 3.38 cfs @ 3.18 fps) Type II 24-hr 100y 24hr Old Rainfall=6.00"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 590HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Pond 41.2P: South Central Inflow Outflow Discarded Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)28 26 24 22 20 18 16 14 12 10 8 6 4 2 0 Inflow Area=3.591 ac Peak Elev=885.34' Storage=22,276 cf 25.80 cfs 12.61 cfs 0.05 cfs 12.56 cfs Type II 24-hr 100y 24hr Old Rainfall=6.00"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 591HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Pond 41.3P: South West Inflow Area = 0.686 ac, 93.81% Impervious, Inflow Depth = 5.64" for 100y 24hr Old event Inflow = 5.10 cfs @ 12.01 hrs, Volume= 0.322 af Outflow = 0.49 cfs @ 12.51 hrs, Volume= 0.322 af, Atten= 90%, Lag= 30.3 min Discarded = 0.03 cfs @ 3.36 hrs, Volume= 0.193 af Primary = 0.46 cfs @ 12.51 hrs, Volume= 0.129 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 890.94' @ 12.51 hrs Surf.Area= 22,024 sf Storage= 8,134 cf Plug-Flow detention time= 1,071.1 min calculated for 0.322 af (100% of inflow) Center-of-Mass det. time= 1,071.2 min ( 1,818.8 - 747.6 ) Volume Invert Avail.Storage Storage Description #1 889.75' 15,091 cf Custom Stage Data (Prismatic) Listed below (Recalc) 50,655 cf Overall - 353 cf Embedded = 50,303 cf x 30.0% Voids #2 892.05' 17,478 cf Custom Stage Data (Prismatic) Listed below (Recalc) 44,048 cf Overall - 353 cf Embedded = 43,695 cf x 40.0% Voids #3 889.75' 353 cf 8.0" Round Pipe Storage Inside #1 L= 1,010.0' #4 892.05' 353 cf 8.0" Round Pipe Storage Inside #2 L= 1,010.0' 33,274 cf Total Available Storage Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 889.75 22,024 0 0 892.05 22,024 50,655 50,655 Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 892.05 22,024 0 0 894.05 22,024 44,048 44,048 Device Routing Invert Outlet Devices #1 Primary 889.75'12.0" Round Culvert L= 45.0' RCP, sq.cut end projecting, Ke= 0.500 Inlet / Outlet Invert= 889.75' / 889.43' S= 0.0071 '/' Cc= 0.900 n= 0.011 Concrete pipe, straight & clean, Flow Area= 0.79 sf #2 Device 1 890.55'8.0" Vert. Orifice/Grate C= 0.600 #3 Device 1 892.72'8.0" Vert. Orifice/Grate C= 0.600 #4 Discarded 889.75'0.060 in/hr Exfiltration over Surface area Phase-In= 0.01' Discarded OutFlow Max=0.03 cfs @ 3.36 hrs HW=889.76' (Free Discharge) 4=Exfiltration (Exfiltration Controls 0.03 cfs) Primary OutFlow Max=0.46 cfs @ 12.51 hrs HW=890.94' TW=0.00' (Dynamic Tailwater) 1=Culvert (Passes 0.46 cfs of 3.09 cfs potential flow) 2=Orifice/Grate (Orifice Controls 0.46 cfs @ 2.14 fps) 3=Orifice/Grate ( Controls 0.00 cfs) Type II 24-hr 100y 24hr Old Rainfall=6.00"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 592HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Pond 41.3P: South West Inflow Outflow Discarded Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)5 4 3 2 1 0 Inflow Area=0.686 ac Peak Elev=890.94' Storage=8,134 cf 5.10 cfs 0.49 cfs 0.03 cfs 0.46 cfs Type II 24-hr 100y 24hr Old Rainfall=6.00"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 593HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Pond 44P: Wetland 4 Inflow Area = 24.628 ac, 36.70% Impervious, Inflow Depth = 2.71" for 100y 24hr Old event Inflow = 29.89 cfs @ 12.11 hrs, Volume= 5.554 af Outflow = 29.87 cfs @ 12.12 hrs, Volume= 5.553 af, Atten= 0%, Lag= 0.3 min Primary = 29.87 cfs @ 12.12 hrs, Volume= 5.553 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 884.69' @ 12.12 hrs Surf.Area= 2,560 sf Storage= 1,146 cf Plug-Flow detention time= 2.2 min calculated for 5.553 af (100% of inflow) Center-of-Mass det. time= 1.8 min ( 1,003.6 - 1,001.8 ) Volume Invert Avail.Storage Storage Description #1 884.00' 37,633 cf Custom Stage Data (Prismatic) Listed below (Recalc) Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 884.00 870 0 0 884.50 1,980 713 713 885.00 3,500 1,370 2,083 886.00 7,800 5,650 7,733 887.00 14,000 10,900 18,633 888.00 24,000 19,000 37,633 Device Routing Invert Outlet Devices #1 Primary 884.03'Asymmetrical Weir, C= 3.27 Offset (feet) 0.00 51.00 133.60 176.00 217.30 239.00 Elev. (feet) 889.78 886.05 884.03 885.84 889.00 889.78 Primary OutFlow Max=29.86 cfs @ 12.12 hrs HW=884.69' TW=0.00' (Dynamic Tailwater) 1=Asymmetrical Weir (Weir Controls 29.86 cfs @ 1.06 fps) Type II 24-hr 100y 24hr Old Rainfall=6.00"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 594HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Pond 44P: Wetland 4 Inflow Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)32 30 28 26 24 22 20 18 16 14 12 10 8 6 4 2 0 Inflow Area=24.628 ac Peak Elev=884.69' Storage=1,146 cf 29.89 cfs 29.87 cfs Type II 24-hr 100y 24hr Old Rainfall=6.00"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 595HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Pond 46P: Triangle Basin Inflow Area = 2.229 ac, 19.60% Impervious, Inflow Depth = 4.17" for 100y 24hr Old event Inflow = 12.45 cfs @ 12.04 hrs, Volume= 0.774 af Outflow = 8.99 cfs @ 12.13 hrs, Volume= 0.774 af, Atten= 28%, Lag= 5.3 min Discarded = 0.01 cfs @ 12.13 hrs, Volume= 0.014 af Primary = 8.98 cfs @ 12.13 hrs, Volume= 0.760 af Secondary = 0.00 cfs @ 0.00 hrs, Volume= 0.000 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 888.42' @ 12.13 hrs Surf.Area= 6,357 sf Storage= 4,256 cf Plug-Flow detention time= 39.4 min calculated for 0.774 af (100% of inflow) Center-of-Mass det. time= 39.5 min ( 837.7 - 798.2 ) Volume Invert Avail.Storage Storage Description #1 884.37' 1,087 cf Sand section (Prismatic) Listed below (Recalc) 3,648 cf Overall - 24 cf Embedded = 3,623 cf x 30.0% Voids #2 884.37' 24 cf 8.0" Round Pipe Storage Inside #1 L= 70.0' #3 886.67' 159 cf Topsoil (Prismatic) Listed below (Recalc) 793 cf Overall x 20.0% Voids #4 887.17' 14,801 cf Open pond (Prismatic) Listed below (Recalc) 16,071 cf Total Available Storage Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 884.37 1,586 0 0 886.67 1,586 3,648 3,648 Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 886.67 1,586 0 0 887.17 1,586 793 793 Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 887.17 1,586 0 0 890.90 6,350 14,801 14,801 Device Routing Invert Outlet Devices #1 Primary 884.37'18.0" Round Culvert L= 125.0' RCP, sq.cut end projecting, Ke= 0.500 Inlet / Outlet Invert= 884.37' / 884.00' S= 0.0030 '/' Cc= 0.900 n= 0.011 Concrete pipe, straight & clean, Flow Area= 1.77 sf #2 Device 1 885.17'12.0" Vert. Orifice/Grate C= 0.600 #3 Device 1 887.41'12.0" Vert. Orifice/Grate C= 0.600 #4 Secondary 890.75'20.0' long x 5.0' breadth Broad-Crested Rectangular Weir Head (feet) 0.20 0.40 0.60 0.80 1.00 1.20 1.40 1.60 1.80 2.00 2.50 3.00 3.50 4.00 4.50 5.00 5.50 Coef. (English) 2.34 2.50 2.70 2.68 2.68 2.66 2.65 2.65 2.65 Type II 24-hr 100y 24hr Old Rainfall=6.00"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 596HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC 2.65 2.67 2.66 2.68 2.70 2.74 2.79 2.88 #5 Discarded 884.37'0.060 in/hr Exfiltration over Surface area Phase-In= 0.01' Discarded OutFlow Max=0.01 cfs @ 12.13 hrs HW=888.42' (Free Discharge) 5=Exfiltration (Exfiltration Controls 0.01 cfs) Primary OutFlow Max=8.98 cfs @ 12.13 hrs HW=888.42' TW=0.00' (Dynamic Tailwater) 1=Culvert (Passes 8.98 cfs of 13.69 cfs potential flow) 2=Orifice/Grate (Orifice Controls 6.27 cfs @ 7.99 fps) 3=Orifice/Grate (Orifice Controls 2.71 cfs @ 3.44 fps) Secondary OutFlow Max=0.00 cfs @ 0.00 hrs HW=884.37' TW=0.00' (Dynamic Tailwater) 4=Broad-Crested Rectangular Weir ( Controls 0.00 cfs) Pond 46P: Triangle Basin Inflow Outflow Discarded Primary Secondary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)13 12 11 10 9 8 7 6 5 4 3 2 1 0 Inflow Area=2.229 ac Peak Elev=888.42' Storage=4,256 cf 12.45 cfs 8.99 cfs 0.01 cfs 8.98 cfs 0.00 cfs Type II 24-hr 100y 24hr Old Rainfall=6.00"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 597HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Pond 47P: Bluff Creek - West Basin Inflow Area = 7.031 ac, 70.52% Impervious, Inflow Depth = 5.15" for 100y 24hr Old event Inflow = 49.96 cfs @ 11.98 hrs, Volume= 3.018 af Outflow = 2.25 cfs @ 13.35 hrs, Volume= 3.018 af, Atten= 95%, Lag= 81.9 min Discarded = 0.30 cfs @ 12.19 hrs, Volume= 1.141 af Primary = 1.95 cfs @ 13.35 hrs, Volume= 1.877 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 910.68' @ 13.35 hrs Surf.Area= 214,600 sf Storage= 83,341 cf Plug-Flow detention time= 966.6 min calculated for 3.018 af (100% of inflow) Center-of-Mass det. time= 966.7 min ( 1,731.3 - 764.6 ) Volume Invert Avail.Storage Storage Description #1 908.20' 73,521 cf Custom Stage Data (Prismatic) Listed below (Recalc) 246,790 cf Overall - 1,719 cf Embedded = 245,071 cf x 30.0% Voids #2 910.50' 85,152 cf Custom Stage Data (Prismatic) Listed below (Recalc) 214,600 cf Overall - 1,719 cf Embedded = 212,881 cf x 40.0% Voids #3 908.20' 1,719 cf 8.0" Round Pipe Storage Inside #1 L= 4,925.0' #4 910.50' 1,719 cf 8.0" Round Pipe Storage Inside #2 L= 4,925.0' 162,112 cf Total Available Storage Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 908.20 107,300 0 0 910.50 107,300 246,790 246,790 Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 910.50 107,300 0 0 912.50 107,300 214,600 214,600 Device Routing Invert Outlet Devices #1 Primary 908.20'12.0" Round Culvert L= 307.0' RCP, square edge headwall, Ke= 0.500 Inlet / Outlet Invert= 908.20' / 905.13' S= 0.0100 '/' Cc= 0.900 n= 0.011 Concrete pipe, straight & clean, Flow Area= 0.79 sf #2 Device 1 909.00'8.0" Vert. Orifice/Grate C= 0.600 #3 Device 1 911.24'8.0" Vert. Orifice/Grate C= 0.600 #4 Discarded 908.20'0.060 in/hr Exfiltration over Surface area Phase-In= 0.01' Discarded OutFlow Max=0.30 cfs @ 12.19 hrs HW=910.50' (Free Discharge) 4=Exfiltration (Exfiltration Controls 0.30 cfs) Primary OutFlow Max=1.95 cfs @ 13.35 hrs HW=910.68' TW=0.00' (Dynamic Tailwater) 1=Culvert (Passes 1.95 cfs of 4.64 cfs potential flow) 2=Orifice/Grate (Orifice Controls 1.95 cfs @ 5.59 fps) 3=Orifice/Grate ( Controls 0.00 cfs) Type II 24-hr 100y 24hr Old Rainfall=6.00"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 598HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Pond 47P: Bluff Creek - West Basin Inflow Outflow Discarded Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)55 50 45 40 35 30 25 20 15 10 5 0 Inflow Area=7.031 ac Peak Elev=910.68' Storage=83,341 cf 49.96 cfs 2.25 cfs 0.30 cfs1.95 cfs Type II 24-hr 100y 24hr Old Rainfall=6.00"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 599HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Pond 48P: Bluff Creek - East Basin Inflow Area = 3.441 ac, 81.34% Impervious, Inflow Depth = 5.39" for 100y 24hr Old event Inflow = 29.09 cfs @ 11.96 hrs, Volume= 1.546 af Outflow = 2.09 cfs @ 12.51 hrs, Volume= 1.546 af, Atten= 93%, Lag= 32.9 min Discarded = 0.14 cfs @ 12.04 hrs, Volume= 0.502 af Primary = 1.94 cfs @ 12.51 hrs, Volume= 1.045 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 897.82' @ 12.51 hrs Surf.Area= 104,170 sf Storage= 40,126 cf Plug-Flow detention time= 726.7 min calculated for 1.546 af (100% of inflow) Center-of-Mass det. time= 726.8 min ( 1,476.0 - 749.2 ) Volume Invert Avail.Storage Storage Description #1 895.35' 35,688 cf Custom Stage Data (Prismatic) Listed below (Recalc) 119,795 cf Overall - 834 cf Embedded = 118,961 cf x 30.0% Voids #2 897.65' 41,334 cf Custom Stage Data (Prismatic) Listed below (Recalc) 104,170 cf Overall - 834 cf Embedded = 103,336 cf x 40.0% Voids #3 895.35' 834 cf 8.0" Round Pipe Storage Inside #1 L= 2,390.0' #4 897.65' 834 cf 8.0" Round Pipe Storage Inside #2 L= 2,390.0' 78,691 cf Total Available Storage Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 895.35 52,085 0 0 897.65 52,085 119,795 119,795 Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 897.65 52,085 0 0 899.65 52,085 104,170 104,170 Device Routing Invert Outlet Devices #1 Primary 895.35'12.0" Round Culvert L= 637.0' RCP, square edge headwall, Ke= 0.500 Inlet / Outlet Invert= 895.35' / 888.98' S= 0.0100 '/' Cc= 0.900 n= 0.011 Concrete pipe, straight & clean, Flow Area= 0.79 sf #2 Device 1 896.15'8.0" Vert. Orifice/Grate C= 0.600 #3 Device 1 898.39'8.0" Vert. Orifice/Grate C= 0.600 #4 Discarded 895.35'0.060 in/hr Exfiltration over Surface area Phase-In= 0.01' Discarded OutFlow Max=0.14 cfs @ 12.04 hrs HW=897.67' (Free Discharge) 4=Exfiltration (Exfiltration Controls 0.14 cfs) Primary OutFlow Max=1.94 cfs @ 12.51 hrs HW=897.82' TW=0.00' (Dynamic Tailwater) 1=Culvert (Passes 1.94 cfs of 4.44 cfs potential flow) 2=Orifice/Grate (Orifice Controls 1.94 cfs @ 5.56 fps) 3=Orifice/Grate ( Controls 0.00 cfs) Type II 24-hr 100y 24hr Old Rainfall=6.00"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 600HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Pond 48P: Bluff Creek - East Basin Inflow Outflow Discarded Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)32 30 28 26 24 22 20 18 16 14 12 10 8 6 4 2 0 Inflow Area=3.441 ac Peak Elev=897.82' Storage=40,126 cf 29.09 cfs 2.09 cfs 0.14 cfs1.94 cfs Type II 24-hr 100y 24hr Old Rainfall=6.00"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 601HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Pond 48P(2): Bluff Creek - East Basin Inflow Area = 2.152 ac, 68.04% Impervious, Inflow Depth = 5.13" for 100y 24hr Old event Inflow = 14.99 cfs @ 12.01 hrs, Volume= 0.920 af Outflow = 2.19 cfs @ 12.34 hrs, Volume= 0.920 af, Atten= 85%, Lag= 19.6 min Discarded = 0.07 cfs @ 12.04 hrs, Volume= 0.226 af Primary = 2.13 cfs @ 12.34 hrs, Volume= 0.693 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 898.48' @ 12.34 hrs Surf.Area= 48,858 sf Storage= 21,529 cf Plug-Flow detention time= 518.4 min calculated for 0.920 af (100% of inflow) Center-of-Mass det. time= 518.5 min ( 1,279.7 - 761.2 ) Volume Invert Avail.Storage Storage Description #1 895.75' 16,739 cf Custom Stage Data (Prismatic) Listed below (Recalc) 56,187 cf Overall - 391 cf Embedded = 55,795 cf x 30.0% Voids #2 898.05' 19,387 cf Custom Stage Data (Prismatic) Listed below (Recalc) 48,858 cf Overall - 391 cf Embedded = 48,467 cf x 40.0% Voids #3 895.75' 391 cf 8.0" Round Pipe Storage Inside #1 L= 1,121.0' #4 898.05' 391 cf 8.0" Round Pipe Storage Inside #2 L= 1,121.0' 36,908 cf Total Available Storage Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 895.75 24,429 0 0 898.05 24,429 56,187 56,187 Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 898.05 24,429 0 0 900.05 24,429 48,858 48,858 Device Routing Invert Outlet Devices #1 Primary 895.75'8.0" Round Culvert L= 50.0' RCP, square edge headwall, Ke= 0.500 Inlet / Outlet Invert= 895.75' / 895.25' S= 0.0100 '/' Cc= 0.900 n= 0.011 Concrete pipe, straight & clean, Flow Area= 0.35 sf #2 Device 1 896.55'8.0" Vert. Orifice/Grate C= 0.600 #3 Device 1 898.79'8.0" Vert. Orifice/Grate C= 0.600 #4 Discarded 895.75'0.060 in/hr Exfiltration over Surface area Phase-In= 0.01' Discarded OutFlow Max=0.07 cfs @ 12.04 hrs HW=898.08' (Free Discharge) 4=Exfiltration (Exfiltration Controls 0.07 cfs) Primary OutFlow Max=2.13 cfs @ 12.34 hrs HW=898.48' TW=0.00' (Dynamic Tailwater) 1=Culvert (Passes 2.13 cfs of 2.42 cfs potential flow) 2=Orifice/Grate (Orifice Controls 2.13 cfs @ 6.09 fps) 3=Orifice/Grate ( Controls 0.00 cfs) Type II 24-hr 100y 24hr Old Rainfall=6.00"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 602HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Pond 48P(2): Bluff Creek - East Basin Inflow Outflow Discarded Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 Inflow Area=2.152 ac Peak Elev=898.48' Storage=21,529 cf 14.99 cfs 2.19 cfs 0.07 cfs 2.13 cfs 40.1S South - East 40.2S South - Central 40.3S South - West 41.1S South - East 41.2S South - Central 41.3S South - west 42.1S South 42.2S Southeast 43.1S East Woods 43.2S Northeast Woods 44S North Woods 45S Central - West 46S South Townhomes 47S Bluff Creek Blvd - West 48.1S Direct to 48P (2) 48S Bluff Creek Blvd - East 71-1S Interlacn Subcatch 1 71-2S Interlacn Subcatch 2 72S 6_Temp 73S N68 74S 5_Temp 75S 3225 76S 3236 77S 3238 78S 3243 79S 3245 80S 3250 81S 3343 82S 3345 83S 3348 84S SE12 85S 1S 86S 2S 87S M9 40R South Drainage 42.1R South 42.2R Southeast 44R Wetland 4 Channel 48R Development to Wetland 472R N68 40.1P South East 40.2P South Central 40.3P South 41.1P South East 41.2P South Central 41.3P South West 44P Wetland 4 46P Triangle Basin 47P Bluff Creek - West Basin 48P Bluff Creek - East Basin 48P(2) Bluff Creek - East Basin 71P Interlachen 72P South MNDOT M9 Wetland Routing Diagram for Avienda - DP 7.3 - Ultimate Prepared by Landform Professional Services, Printed 5/18/2020 HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Subcat Reach Pond Link Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 2HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Area Listing (selected nodes) Area (acres) CN Description (subcatchment-numbers) 1.160 100 (71-2S) 1.020 90 (74S) 10.540 80 >75% Grass cover, Good, HSG D (40.1S, 40.2S, 40.3S, 41.1S, 41.2S, 41.3S, 42.1S, 42.2S, 45S, 46S, 47S, 48.1S, 48S) 3.643 98 Paved parking & roofs, HSG D (40.3S) 13.366 98 Paved parking, HSG D (40.1S, 40.2S, 41.1S, 41.2S, 41.3S, 46S, 48.1S) 4.655 98 Paved roads w/curbs & sewers, HSG D (47S, 48S) 3.650 95 Urban commercial, 85% imp, HSG D (45S) 0.810 94 Weighted (72S) 7.420 98 Weighted (73S, 75S, 79S) 8.310 80 Weighted (76S) 0.950 83 Weighted (77S) 0.630 91 Weighted (78S) 0.350 90 Weighted (80S) 27.588 76 Weighted (81S, 87S) 1.480 78 Weighted (82S) 0.700 87 Weighted (83S) 2.100 79 Weighted (84S) 10.330 69 Weighted (85S, 86S) 2.080 84 Weoghted (71-1S) 15.215 55 Woods, Good, HSG B (43.1S, 43.2S, 44S) 115.998 80 TOTAL AREA Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 3HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Soil Listing (selected nodes) Area (acres) Soil Group Subcatchment Numbers 0.000 HSG A 15.215 HSG B 43.1S, 43.2S, 44S 0.000 HSG C 35.855 HSG D 40.1S, 40.2S, 40.3S, 41.1S, 41.2S, 41.3S, 42.1S, 42.2S, 45S, 46S, 47S, 48.1S, 48S 64.928 Other 71-1S, 71-2S, 72S, 73S, 74S, 75S, 76S, 77S, 78S, 79S, 80S, 81S, 82S, 83S, 84S, 85S, 86S, 87S 115.998 TOTAL AREA Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 4HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Ground Covers (selected nodes) HSG-A (acres) HSG-B (acres) HSG-C (acres) HSG-D (acres) Other (acres) Total (acres) Ground Cover Subcatchment Numbers 0.000 0.000 0.000 0.000 2.180 2.180 71- 2S, 74 S 0.000 0.000 0.000 10.540 0.000 10.540 >75% Grass cover, Good 40. 1S, 40. 2S, 40. 3S, 41. 1S, 41. 2S, 41. 3S, 42. 1S, 42. 2S, 45 S, 46 S, 47 S, 48. 1S, 48 S 0.000 0.000 0.000 13.366 0.000 13.366 Paved parking 40. 1S, 40. 2S, Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 5HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Ground Covers (selected nodes) (continued) HSG-A (acres) HSG-B (acres) HSG-C (acres) HSG-D (acres) Other (acres) Total (acres) Ground Cover Subcatchment Numbers 0.000 0.000 0.000 3.643 0.000 3.643 Paved parking & roofs 40. 3S 0.000 0.000 0.000 4.655 0.000 4.655 Paved roads w/curbs & sewers 47 S, 48 S 0.000 0.000 0.000 3.650 0.000 3.650 Urban commercial, 85% imp 45 S 0.000 0.000 0.000 0.000 60.668 60.668 Weighted 72 S, 73 S, 75 S, 76 S, 77 S, 78 S, 79 S, 80 S, 81 S, 82 S, 83 S, 84 S, 85 S, 86 S, 87 S 0.000 0.000 0.000 0.000 2.080 2.080 Weoghted 71- 1S 0.000 15.215 0.000 0.000 0.000 15.215 Woods, Good 43. 1S, 43. 2S, Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 6HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Ground Covers (selected nodes) (continued) HSG-A (acres) HSG-B (acres) HSG-C (acres) HSG-D (acres) Other (acres) Total (acres) Ground Cover Subcatchment Numbers 0.000 15.215 0.000 35.855 64.928 115.998 TOTAL AREA Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 7HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Pipe Listing (selected nodes) Line# Node Number In-Invert (feet) Out-Invert (feet) Length (feet) Slope (ft/ft) n Diam/Width (inches) Height (inches) Inside-Fill (inches) 1 72R 872.00 871.53 63.0 0.0075 0.012 24.0 0.0 0.0 2 40.1P 893.70 891.88 260.0 0.0070 0.011 12.0 0.0 0.0 3 40.2P 895.00 893.25 250.0 0.0070 0.011 12.0 0.0 0.0 4 40.3P 897.50 896.27 175.0 0.0070 0.011 12.0 0.0 0.0 5 41.1P 888.00 887.51 70.0 0.0070 0.011 12.0 0.0 0.0 6 41.2P 881.50 881.28 22.0 0.0100 0.011 18.0 0.0 0.0 7 41.3P 889.75 889.43 45.0 0.0071 0.011 12.0 0.0 0.0 8 46P 884.37 884.00 125.0 0.0030 0.011 18.0 0.0 0.0 9 47P 908.20 905.13 307.0 0.0100 0.011 12.0 0.0 0.0 10 48P 895.35 888.98 637.0 0.0100 0.011 12.0 0.0 0.0 11 48P(2) 895.75 895.25 50.0 0.0100 0.011 8.0 0.0 0.0 12 71P 870.00 869.67 33.0 0.0100 0.012 24.0 0.0 0.0 13 71P 866.50 866.61 21.0 -0.0052 0.012 24.0 0.0 0.0 14 72P 869.00 866.93 276.0 0.0075 0.013 18.0 0.0 0.0 15 72P 868.50 869.36 172.0 -0.0050 0.013 18.0 0.0 0.0 MSE 24-hr 3 1-Year A Rainfall=2.47"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 8HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Time span=0.00-360.00 hrs, dt=0.01 hrs, 36001 points Runoff by SCS TR-20 method, UH=SCS, Weighted-Q Reach routing by Dyn-Stor-Ind method - Pond routing by Dyn-Stor-Ind method Runoff Area=163,468 sf 81.66% Impervious Runoff Depth=1.99"Subcatchment 40.1S: South - East Tc=10.0 min CN=WQ Runoff=10.40 cfs 0.622 af Runoff Area=200,567 sf 76.19% Impervious Runoff Depth=1.91"Subcatchment 40.2S: South - Central Tc=10.0 min CN=WQ Runoff=12.32 cfs 0.734 af Runoff Area=228,145 sf 69.55% Impervious Runoff Depth=1.82"Subcatchment 40.3S: South - West Tc=10.0 min CN=WQ Runoff=13.39 cfs 0.796 af Runoff Area=69,984 sf 85.30% Impervious Runoff Depth=2.04"Subcatchment 41.1S: South - East Tc=10.0 min CN=WQ Runoff=4.56 cfs 0.273 af Runoff Area=156,419 sf 80.17% Impervious Runoff Depth=1.97"Subcatchment 41.2S: South - Central Tc=10.0 min CN=WQ Runoff=9.86 cfs 0.589 af Runoff Area=29,884 sf 93.81% Impervious Runoff Depth=2.16"Subcatchment 41.3S: South - west Tc=10.0 min CN=WQ Runoff=2.05 cfs 0.123 af Runoff Area=41,871 sf 0.00% Impervious Runoff Depth=0.87"Subcatchment 42.1S: South Tc=5.0 min CN=80 Runoff=1.63 cfs 0.070 af Runoff Area=24,525 sf 0.00% Impervious Runoff Depth=0.87"Subcatchment 42.2S: Southeast Tc=5.0 min CN=80 Runoff=0.96 cfs 0.041 af Runoff Area=3.222 ac 0.00% Impervious Runoff Depth=0.08"Subcatchment 43.1S: East Woods Flow Length=530' Tc=15.2 min CN=55 Runoff=0.06 cfs 0.021 af Runoff Area=1.862 ac 0.00% Impervious Runoff Depth=0.08"Subcatchment 43.2S: Northeast Woods Flow Length=623' Tc=19.5 min CN=55 Runoff=0.04 cfs 0.012 af Runoff Area=441,314 sf 0.00% Impervious Runoff Depth=0.08"Subcatchment 44S: North Woods Flow Length=599' Tc=16.5 min CN=55 Runoff=0.19 cfs 0.065 af Runoff Area=206,303 sf 65.51% Impervious Runoff Depth=1.69"Subcatchment 45S: Central - West Tc=10.0 min CN=WQ Runoff=11.85 cfs 0.667 af Runoff Area=97,082 sf 19.60% Impervious Runoff Depth=1.14"Subcatchment 46S: South Townhomes Flow Length=701' Tc=12.6 min CN=WQ Runoff=3.36 cfs 0.211 af Runoff Area=2.295 ac 80.87% Impervious Runoff Depth=1.98"Subcatchment 47S: Bluff Creek Blvd - West Tc=5.0 min CN=WQ Runoff=7.74 cfs 0.378 af Runoff Area=93,721 sf 68.04% Impervious Runoff Depth=1.80"Subcatchment 48.1S: Direct to 48P (2) Tc=10.0 min CN=WQ Runoff=5.44 cfs 0.323 af Runoff Area=3.441 ac 81.34% Impervious Runoff Depth=1.98"Subcatchment 48S: Bluff Creek Blvd - East Tc=5.0 min CN=WQ Runoff=11.64 cfs 0.569 af MSE 24-hr 3 1-Year A Rainfall=2.47"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 9HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Runoff Area=2.080 ac 0.00% Impervious Runoff Depth=1.09"Subcatchment 71-1S: Interlacn Subcatch 1 Tc=7.0 min CN=84 Runoff=4.06 cfs 0.189 af Runoff Area=1.160 ac 100.00% Impervious Runoff Depth=2.47"Subcatchment 71-2S: Interlacn Subcatch 2 Tc=7.0 min CN=100 Runoff=4.13 cfs 0.239 af Runoff Area=0.810 ac 0.00% Impervious Runoff Depth=1.84"Subcatchment 72S: 6_Temp Tc=9.0 min CN=94 Runoff=2.34 cfs 0.124 af Runoff Area=2.360 ac 100.00% Impervious Runoff Depth=2.24"Subcatchment 73S: N68 Tc=7.0 min CN=98 Runoff=8.24 cfs 0.441 af Runoff Area=1.020 ac 0.00% Impervious Runoff Depth=1.50"Subcatchment 74S: 5_Temp Tc=9.0 min CN=90 Runoff=2.49 cfs 0.128 af Runoff Area=3.010 ac 100.00% Impervious Runoff Depth=2.24"Subcatchment 75S: 3225 Tc=7.0 min CN=98 Runoff=10.51 cfs 0.562 af Runoff Area=8.310 ac 0.00% Impervious Runoff Depth=0.87"Subcatchment 76S: 3236 Tc=14.0 min CN=80 Runoff=9.43 cfs 0.601 af Runoff Area=0.950 ac 0.00% Impervious Runoff Depth=1.03"Subcatchment 77S: 3238 Tc=7.0 min CN=83 Runoff=1.75 cfs 0.082 af Runoff Area=0.630 ac 0.00% Impervious Runoff Depth=1.58"Subcatchment 78S: 3243 Tc=7.0 min CN=91 Runoff=1.74 cfs 0.083 af Runoff Area=2.050 ac 100.00% Impervious Runoff Depth=2.24"Subcatchment 79S: 3245 Tc=7.0 min CN=98 Runoff=7.16 cfs 0.383 af Runoff Area=0.350 ac 0.00% Impervious Runoff Depth=1.50"Subcatchment 80S: 3250 Tc=7.0 min CN=90 Runoff=0.93 cfs 0.044 af Runoff Area=5.950 ac 0.00% Impervious Runoff Depth=0.68"Subcatchment 81S: 3343 Tc=19.0 min CN=76 Runoff=4.28 cfs 0.335 af Runoff Area=1.480 ac 0.00% Impervious Runoff Depth=0.77"Subcatchment 82S: 3345 Tc=7.0 min CN=78 Runoff=1.98 cfs 0.095 af Runoff Area=0.700 ac 0.00% Impervious Runoff Depth=1.29"Subcatchment 83S: 3348 Tc=7.0 min CN=87 Runoff=1.60 cfs 0.075 af Runoff Area=2.100 ac 0.00% Impervious Runoff Depth=0.82"Subcatchment 84S: SE12 Tc=11.0 min CN=79 Runoff=2.51 cfs 0.143 af Runoff Area=4.530 ac 0.00% Impervious Runoff Depth=0.41"Subcatchment 85S: 1S Tc=15.0 min CN=69 Runoff=1.85 cfs 0.154 af Runoff Area=5.800 ac 0.00% Impervious Runoff Depth=0.41"Subcatchment 86S: 2S Tc=25.0 min CN=69 Runoff=1.80 cfs 0.197 af MSE 24-hr 3 1-Year A Rainfall=2.47"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 10HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Runoff Area=21.638 ac 0.00% Impervious Runoff Depth=0.68"Subcatchment 87S: M9 Tc=29.0 min CN=76 Runoff=12.22 cfs 1.220 af Inflow=8.85 cfs 1.707 afReach 40R: South Drainage Outflow=8.85 cfs 1.707 af Inflow=5.37 cfs 0.520 afReach 42.1R: South Outflow=5.37 cfs 0.520 af Inflow=1.12 cfs 0.483 afReach 42.2R: Southeast Outflow=1.12 cfs 0.483 af Inflow=3.11 cfs 0.684 afReach 44R: Wetland 4 Channel Outflow=3.11 cfs 0.684 af Inflow=3.13 cfs 0.608 afReach 48R: Development to Wetland 4 Outflow=3.13 cfs 0.608 af Avg. Flow Depth=1.13' Max Vel=7.07 fps Inflow=12.90 cfs 0.693 afReach 72R: N68 24.0" Round Pipe n=0.012 L=63.0' S=0.0075 '/' Capacity=21.17 cfs Outflow=12.90 cfs 0.693 af Peak Elev=894.88' Storage=18,588 cf Inflow=10.40 cfs 0.622 afPond 40.1P: South East Discarded=0.07 cfs 0.433 af Primary=0.42 cfs 0.189 af Outflow=0.50 cfs 0.622 af Peak Elev=895.83' Storage=24,679 cf Inflow=12.32 cfs 0.734 afPond 40.2P: South Central Discarded=0.13 cfs 0.732 af Primary=0.00 cfs 0.002 af Outflow=0.14 cfs 0.734 af Peak Elev=898.76' Storage=23,422 cf Inflow=13.39 cfs 0.796 afPond 40.3P: South Discarded=0.08 cfs 0.520 af Primary=0.59 cfs 0.276 af Outflow=0.67 cfs 0.796 af Peak Elev=888.61' Storage=8,753 cf Inflow=4.56 cfs 0.273 afPond 41.1P: South East Discarded=0.06 cfs 0.273 af Primary=0.00 cfs 0.000 af Outflow=0.06 cfs 0.273 af Peak Elev=883.61' Storage=10,803 cf Inflow=9.86 cfs 0.589 afPond 41.2P: South Central Discarded=0.02 cfs 0.141 af Primary=4.88 cfs 0.448 af Outflow=4.91 cfs 0.589 af Peak Elev=890.31' Storage=3,895 cf Inflow=2.05 cfs 0.123 afPond 41.3P: South West Discarded=0.03 cfs 0.123 af Primary=0.00 cfs 0.000 af Outflow=0.03 cfs 0.123 af Peak Elev=884.30' Storage=357 cf Inflow=3.13 cfs 0.673 afPond 44P: Wetland 4 Outflow=3.11 cfs 0.672 af Peak Elev=886.35' Storage=957 cf Inflow=3.36 cfs 0.211 afPond 46P: Triangle Basin Discarded=0.00 cfs 0.013 af Primary=3.11 cfs 0.198 af Secondary=0.00 cfs 0.000 af Outflow=3.11 cfs 0.211 af Peak Elev=909.23' Storage=34,443 cf Inflow=18.36 cfs 1.045 afPond 47P: Bluff Creek - West Basin Discarded=0.15 cfs 0.912 af Primary=0.18 cfs 0.134 af Outflow=0.33 cfs 1.045 af Peak Elev=896.43' Storage=17,504 cf Inflow=11.64 cfs 0.569 afPond 48P: Bluff Creek - East Basin Discarded=0.07 cfs 0.438 af Primary=0.26 cfs 0.131 af Outflow=0.33 cfs 0.569 af MSE 24-hr 3 1-Year A Rainfall=2.47"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 11HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Peak Elev=896.92' Storage=8,839 cf Inflow=5.44 cfs 0.323 afPond 48P(2): Bluff Creek - East Basin Discarded=0.03 cfs 0.201 af Primary=0.41 cfs 0.122 af Outflow=0.44 cfs 0.323 af Peak Elev=871.46' Storage=77,301 cf Inflow=55.58 cfs 3.381 afPond 71P: Interlachen Outflow=8.74 cfs 3.371 af Peak Elev=870.15' Storage=226,809 cf Inflow=32.08 cfs 6.791 afPond 72P: South MNDOT M9 Wetland Outflow=1.48 cfs 6.528 af Total Runoff Area = 115.998 ac Runoff Volume = 10.589 af Average Runoff Depth = 1.10" 71.25% Pervious = 82.651 ac 28.75% Impervious = 33.347 ac MSE 24-hr 3 1-Year A Rainfall=2.47"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 12HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 40.1S: South - East Runoff = 10.40 cfs @ 12.17 hrs, Volume= 0.622 af, Depth= 1.99" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MSE 24-hr 3 1-Year A Rainfall=2.47" Area (sf) CN Description 29,976 80 >75% Grass cover, Good, HSG D 133,492 98 Paved parking, HSG D 163,468 Weighted Average 29,976 80 18.34% Pervious Area 133,492 98 81.66% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 10.0 Direct Entry, Subcatchment 40.1S: South - East Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)11 10 9 8 7 6 5 4 3 2 1 0 MSE 24-hr 3 1-Year A Rainfall=2.47" Runoff Area=163,468 sf Runoff Volume=0.622 af Runoff Depth=1.99" Tc=10.0 min CN=WQ 10.40 cfs MSE 24-hr 3 1-Year A Rainfall=2.47"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 13HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 40.2S: South - Central Runoff = 12.32 cfs @ 12.17 hrs, Volume= 0.734 af, Depth= 1.91" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MSE 24-hr 3 1-Year A Rainfall=2.47" Area (sf) CN Description 47,748 80 >75% Grass cover, Good, HSG D 152,819 98 Paved parking, HSG D 200,567 Weighted Average 47,748 80 23.81% Pervious Area 152,819 98 76.19% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 10.0 Direct Entry, Subcatchment 40.2S: South - Central Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)13 12 11 10 9 8 7 6 5 4 3 2 1 0 MSE 24-hr 3 1-Year A Rainfall=2.47" Runoff Area=200,567 sf Runoff Volume=0.734 af Runoff Depth=1.91" Tc=10.0 min CN=WQ 12.32 cfs MSE 24-hr 3 1-Year A Rainfall=2.47"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 14HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 40.3S: South - West Runoff = 13.39 cfs @ 12.17 hrs, Volume= 0.796 af, Depth= 1.82" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MSE 24-hr 3 1-Year A Rainfall=2.47" Area (sf) CN Description 69,464 80 >75% Grass cover, Good, HSG D * 158,681 98 Paved parking & roofs, HSG D 228,145 Weighted Average 69,464 80 30.45% Pervious Area 158,681 98 69.55% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 10.0 Direct Entry, Subcatchment 40.3S: South - West Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 MSE 24-hr 3 1-Year A Rainfall=2.47" Runoff Area=228,145 sf Runoff Volume=0.796 af Runoff Depth=1.82" Tc=10.0 min CN=WQ 13.39 cfs MSE 24-hr 3 1-Year A Rainfall=2.47"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 15HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 41.1S: South - East Runoff = 4.56 cfs @ 12.17 hrs, Volume= 0.273 af, Depth= 2.04" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MSE 24-hr 3 1-Year A Rainfall=2.47" Area (sf) CN Description 10,289 80 >75% Grass cover, Good, HSG D 59,695 98 Paved parking, HSG D 69,984 Weighted Average 10,289 80 14.70% Pervious Area 59,695 98 85.30% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 10.0 Direct Entry, Subcatchment 41.1S: South - East Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)5 4 3 2 1 0 MSE 24-hr 3 1-Year A Rainfall=2.47" Runoff Area=69,984 sf Runoff Volume=0.273 af Runoff Depth=2.04" Tc=10.0 min CN=WQ 4.56 cfs MSE 24-hr 3 1-Year A Rainfall=2.47"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 16HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 41.2S: South - Central Runoff = 9.86 cfs @ 12.17 hrs, Volume= 0.589 af, Depth= 1.97" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MSE 24-hr 3 1-Year A Rainfall=2.47" Area (sf) CN Description 31,015 80 >75% Grass cover, Good, HSG D 125,404 98 Paved parking, HSG D 156,419 Weighted Average 31,015 80 19.83% Pervious Area 125,404 98 80.17% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 10.0 Direct Entry, Subcatchment 41.2S: South - Central Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)11 10 9 8 7 6 5 4 3 2 1 0 MSE 24-hr 3 1-Year A Rainfall=2.47" Runoff Area=156,419 sf Runoff Volume=0.589 af Runoff Depth=1.97" Tc=10.0 min CN=WQ 9.86 cfs MSE 24-hr 3 1-Year A Rainfall=2.47"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 17HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 41.3S: South - west Runoff = 2.05 cfs @ 12.17 hrs, Volume= 0.123 af, Depth= 2.16" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MSE 24-hr 3 1-Year A Rainfall=2.47" Area (sf) CN Description 1,850 80 >75% Grass cover, Good, HSG D 28,034 98 Paved parking, HSG D 29,884 Weighted Average 1,850 80 6.19% Pervious Area 28,034 98 93.81% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 10.0 Direct Entry, Subcatchment 41.3S: South - west Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)2 1 0 MSE 24-hr 3 1-Year A Rainfall=2.47" Runoff Area=29,884 sf Runoff Volume=0.123 af Runoff Depth=2.16" Tc=10.0 min CN=WQ 2.05 cfs MSE 24-hr 3 1-Year A Rainfall=2.47"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 18HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 42.1S: South Runoff = 1.63 cfs @ 12.13 hrs, Volume= 0.070 af, Depth= 0.87" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MSE 24-hr 3 1-Year A Rainfall=2.47" Area (sf) CN Description 41,871 80 >75% Grass cover, Good, HSG D 41,871 80 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 5.0 Direct Entry, Subcatchment 42.1S: South Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)1 0 MSE 24-hr 3 1-Year A Rainfall=2.47" Runoff Area=41,871 sf Runoff Volume=0.070 af Runoff Depth=0.87" Tc=5.0 min CN=80 1.63 cfs MSE 24-hr 3 1-Year A Rainfall=2.47"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 19HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 42.2S: Southeast Runoff = 0.96 cfs @ 12.13 hrs, Volume= 0.041 af, Depth= 0.87" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MSE 24-hr 3 1-Year A Rainfall=2.47" Area (sf) CN Description 24,525 80 >75% Grass cover, Good, HSG D 24,525 80 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 5.0 Direct Entry, Subcatchment 42.2S: Southeast Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)1 0 MSE 24-hr 3 1-Year A Rainfall=2.47" Runoff Area=24,525 sf Runoff Volume=0.041 af Runoff Depth=0.87" Tc=5.0 min CN=80 0.96 cfs MSE 24-hr 3 1-Year A Rainfall=2.47"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 20HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 43.1S: East Woods Runoff = 0.06 cfs @ 12.65 hrs, Volume= 0.021 af, Depth= 0.08" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MSE 24-hr 3 1-Year A Rainfall=2.47" Area (ac) CN Description 3.222 55 Woods, Good, HSG B 3.222 55 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 11.1 75 0.0670 0.11 Sheet Flow, Woods: Light underbrush n= 0.400 P2= 2.87" 4.1 455 0.1380 1.86 Shallow Concentrated Flow, Woodland Kv= 5.0 fps 15.2 530 Total Subcatchment 43.1S: East Woods Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.065 0.06 0.055 0.05 0.045 0.04 0.035 0.03 0.025 0.02 0.015 0.01 0.005 0 MSE 24-hr 3 1-Year A Rainfall=2.47" Runoff Area=3.222 ac Runoff Volume=0.021 af Runoff Depth=0.08" Flow Length=530' Tc=15.2 min CN=55 0.06 cfs MSE 24-hr 3 1-Year A Rainfall=2.47"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 21HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 43.2S: Northeast Woods Runoff = 0.04 cfs @ 13.15 hrs, Volume= 0.012 af, Depth= 0.08" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MSE 24-hr 3 1-Year A Rainfall=2.47" Area (ac) CN Description 1.862 55 Woods, Good, HSG B 1.862 55 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 14.2 100 0.0650 0.12 Sheet Flow, Woods: Light underbrush n= 0.400 P2= 2.87" 5.3 523 0.1080 1.64 Shallow Concentrated Flow, Woodland Kv= 5.0 fps 19.5 623 Total Subcatchment 43.2S: Northeast Woods Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.038 0.036 0.034 0.032 0.03 0.028 0.026 0.024 0.022 0.02 0.018 0.016 0.014 0.012 0.01 0.008 0.006 0.004 0.002 0 MSE 24-hr 3 1-Year A Rainfall=2.47" Runoff Area=1.862 ac Runoff Volume=0.012 af Runoff Depth=0.08" Flow Length=623' Tc=19.5 min CN=55 0.04 cfs MSE 24-hr 3 1-Year A Rainfall=2.47"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 22HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 44S: North Woods Runoff = 0.19 cfs @ 13.07 hrs, Volume= 0.065 af, Depth= 0.08" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MSE 24-hr 3 1-Year A Rainfall=2.47" Area (sf) CN Description 441,314 55 Woods, Good, HSG B 441,314 55 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 11.2 75 0.0660 0.11 Sheet Flow, Woods: Light underbrush n= 0.400 P2= 2.87" 5.3 524 0.1090 1.65 Shallow Concentrated Flow, Woodland Kv= 5.0 fps 16.5 599 Total Subcatchment 44S: North Woods Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.21 0.2 0.19 0.18 0.17 0.16 0.15 0.14 0.13 0.12 0.11 0.1 0.09 0.08 0.07 0.06 0.05 0.04 0.03 0.02 0.01 0 MSE 24-hr 3 1-Year A Rainfall=2.47" Runoff Area=441,314 sf Runoff Volume=0.065 af Runoff Depth=0.08" Flow Length=599' Tc=16.5 min CN=55 0.19 cfs MSE 24-hr 3 1-Year A Rainfall=2.47"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 23HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 45S: Central - West Runoff = 11.85 cfs @ 12.17 hrs, Volume= 0.667 af, Depth= 1.69" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MSE 24-hr 3 1-Year A Rainfall=2.47" Area (sf) CN Description 159,000 95 Urban commercial, 85% imp, HSG D 47,303 80 >75% Grass cover, Good, HSG D 206,303 Weighted Average 71,153 79 34.49% Pervious Area 135,150 98 65.51% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 10.0 Direct Entry, Subcatchment 45S: Central - West Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)13 12 11 10 9 8 7 6 5 4 3 2 1 0 MSE 24-hr 3 1-Year A Rainfall=2.47" Runoff Area=206,303 sf Runoff Volume=0.667 af Runoff Depth=1.69" Tc=10.0 min CN=WQ 11.85 cfs MSE 24-hr 3 1-Year A Rainfall=2.47"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 24HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 46S: South Townhomes Runoff = 3.36 cfs @ 12.21 hrs, Volume= 0.211 af, Depth= 1.14" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MSE 24-hr 3 1-Year A Rainfall=2.47" Area (sf) CN Description 19,025 98 Paved parking, HSG D 78,057 80 >75% Grass cover, Good, HSG D 97,082 Weighted Average 78,057 80 80.40% Pervious Area 19,025 98 19.60% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 11.7 92 0.0320 0.13 Sheet Flow, Grass: Dense n= 0.240 P2= 2.87" 0.9 609 0.5200 10.82 Shallow Concentrated Flow, Grassed Waterway Kv= 15.0 fps 12.6 701 Total Subcatchment 46S: South Townhomes Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)3 2 1 0 MSE 24-hr 3 1-Year A Rainfall=2.47" Runoff Area=97,082 sf Runoff Volume=0.211 af Runoff Depth=1.14" Flow Length=701' Tc=12.6 min CN=WQ 3.36 cfs MSE 24-hr 3 1-Year A Rainfall=2.47"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 25HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 47S: Bluff Creek Blvd - West Runoff = 7.74 cfs @ 12.12 hrs, Volume= 0.378 af, Depth= 1.98" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MSE 24-hr 3 1-Year A Rainfall=2.47" Area (ac) CN Description 0.439 80 >75% Grass cover, Good, HSG D 1.856 98 Paved roads w/curbs & sewers, HSG D 2.295 Weighted Average 0.439 80 19.13% Pervious Area 1.856 98 80.87% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 5.0 Direct Entry, Subcatchment 47S: Bluff Creek Blvd - West Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)8 7 6 5 4 3 2 1 0 MSE 24-hr 3 1-Year A Rainfall=2.47" Runoff Area=2.295 ac Runoff Volume=0.378 af Runoff Depth=1.98" Tc=5.0 min CN=WQ 7.74 cfs MSE 24-hr 3 1-Year A Rainfall=2.47"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 26HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 48.1S: Direct to 48P (2) Runoff = 5.44 cfs @ 12.17 hrs, Volume= 0.323 af, Depth= 1.80" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MSE 24-hr 3 1-Year A Rainfall=2.47" Area (sf) CN Description 29,956 80 >75% Grass cover, Good, HSG D 63,765 98 Paved parking, HSG D 93,721 Weighted Average 29,956 80 31.96% Pervious Area 63,765 98 68.04% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 10.0 Direct Entry, Subcatchment 48.1S: Direct to 48P (2) Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)6 5 4 3 2 1 0 MSE 24-hr 3 1-Year A Rainfall=2.47" Runoff Area=93,721 sf Runoff Volume=0.323 af Runoff Depth=1.80" Tc=10.0 min CN=WQ 5.44 cfs MSE 24-hr 3 1-Year A Rainfall=2.47"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 27HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 48S: Bluff Creek Blvd - East Runoff = 11.64 cfs @ 12.12 hrs, Volume= 0.569 af, Depth= 1.98" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MSE 24-hr 3 1-Year A Rainfall=2.47" Area (ac) CN Description 0.642 80 >75% Grass cover, Good, HSG D 2.799 98 Paved roads w/curbs & sewers, HSG D 3.441 Weighted Average 0.642 80 18.66% Pervious Area 2.799 98 81.34% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 5.0 Direct Entry, Subcatchment 48S: Bluff Creek Blvd - East Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)13 12 11 10 9 8 7 6 5 4 3 2 1 0 MSE 24-hr 3 1-Year A Rainfall=2.47" Runoff Area=3.441 ac Runoff Volume=0.569 af Runoff Depth=1.98" Tc=5.0 min CN=WQ 11.64 cfs MSE 24-hr 3 1-Year A Rainfall=2.47"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 28HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 71-1S: Interlacn Subcatch 1 Runoff = 4.06 cfs @ 12.15 hrs, Volume= 0.189 af, Depth= 1.09" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MSE 24-hr 3 1-Year A Rainfall=2.47" Area (ac) CN Description * 2.080 84 Weoghted 2.080 84 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 7.0 Direct Entry, Subcatchment 71-1S: Interlacn Subcatch 1 Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)4 3 2 1 0 MSE 24-hr 3 1-Year A Rainfall=2.47" Runoff Area=2.080 ac Runoff Volume=0.189 af Runoff Depth=1.09" Tc=7.0 min CN=84 4.06 cfs MSE 24-hr 3 1-Year A Rainfall=2.47"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 29HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 71-2S: Interlacn Subcatch 2 Runoff = 4.13 cfs @ 12.14 hrs, Volume= 0.239 af, Depth= 2.47" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MSE 24-hr 3 1-Year A Rainfall=2.47" Area (ac) CN Description * 1.160 100 1.160 100 100.00% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 7.0 Direct Entry, Subcatchment 71-2S: Interlacn Subcatch 2 Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)4 3 2 1 0 MSE 24-hr 3 1-Year A Rainfall=2.47" Runoff Area=1.160 ac Runoff Volume=0.239 af Runoff Depth=2.47" Tc=7.0 min CN=100 4.13 cfs MSE 24-hr 3 1-Year A Rainfall=2.47"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 30HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 72S: 6_Temp Runoff = 2.34 cfs @ 12.16 hrs, Volume= 0.124 af, Depth= 1.84" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MSE 24-hr 3 1-Year A Rainfall=2.47" Area (ac) CN Description * 0.810 94 Weighted 0.810 94 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 9.0 Direct Entry, Subcatchment 72S: 6_Temp Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)2 1 0 MSE 24-hr 3 1-Year A Rainfall=2.47" Runoff Area=0.810 ac Runoff Volume=0.124 af Runoff Depth=1.84" Tc=9.0 min CN=94 2.34 cfs MSE 24-hr 3 1-Year A Rainfall=2.47"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 31HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 73S: N68 Runoff = 8.24 cfs @ 12.14 hrs, Volume= 0.441 af, Depth= 2.24" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MSE 24-hr 3 1-Year A Rainfall=2.47" Area (ac) CN Description * 2.360 98 Weighted 2.360 98 100.00% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 7.0 Direct Entry, Subcatchment 73S: N68 Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)9 8 7 6 5 4 3 2 1 0 MSE 24-hr 3 1-Year A Rainfall=2.47" Runoff Area=2.360 ac Runoff Volume=0.441 af Runoff Depth=2.24" Tc=7.0 min CN=98 8.24 cfs MSE 24-hr 3 1-Year A Rainfall=2.47"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 32HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 74S: 5_Temp Runoff = 2.49 cfs @ 12.16 hrs, Volume= 0.128 af, Depth= 1.50" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MSE 24-hr 3 1-Year A Rainfall=2.47" Area (ac) CN Description * 1.020 90 1.020 90 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 9.0 Direct Entry, Subcatchment 74S: 5_Temp Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)2 1 0 MSE 24-hr 3 1-Year A Rainfall=2.47" Runoff Area=1.020 ac Runoff Volume=0.128 af Runoff Depth=1.50" Tc=9.0 min CN=90 2.49 cfs MSE 24-hr 3 1-Year A Rainfall=2.47"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 33HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 75S: 3225 Runoff = 10.51 cfs @ 12.14 hrs, Volume= 0.562 af, Depth= 2.24" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MSE 24-hr 3 1-Year A Rainfall=2.47" Area (ac) CN Description * 3.010 98 Weighted 3.010 98 100.00% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 7.0 Direct Entry, Subcatchment 75S: 3225 Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)11 10 9 8 7 6 5 4 3 2 1 0 MSE 24-hr 3 1-Year A Rainfall=2.47" Runoff Area=3.010 ac Runoff Volume=0.562 af Runoff Depth=2.24" Tc=7.0 min CN=98 10.51 cfs MSE 24-hr 3 1-Year A Rainfall=2.47"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 34HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 76S: 3236 Runoff = 9.43 cfs @ 12.23 hrs, Volume= 0.601 af, Depth= 0.87" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MSE 24-hr 3 1-Year A Rainfall=2.47" Area (ac) CN Description * 8.310 80 Weighted 8.310 80 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 14.0 Direct Entry, Subcatchment 76S: 3236 Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)10 9 8 7 6 5 4 3 2 1 0 MSE 24-hr 3 1-Year A Rainfall=2.47" Runoff Area=8.310 ac Runoff Volume=0.601 af Runoff Depth=0.87" Tc=14.0 min CN=80 9.43 cfs MSE 24-hr 3 1-Year A Rainfall=2.47"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 35HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 77S: 3238 Runoff = 1.75 cfs @ 12.15 hrs, Volume= 0.082 af, Depth= 1.03" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MSE 24-hr 3 1-Year A Rainfall=2.47" Area (ac) CN Description * 0.950 83 Weighted 0.950 83 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 7.0 Direct Entry, Subcatchment 77S: 3238 Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)1 0 MSE 24-hr 3 1-Year A Rainfall=2.47" Runoff Area=0.950 ac Runoff Volume=0.082 af Runoff Depth=1.03" Tc=7.0 min CN=83 1.75 cfs MSE 24-hr 3 1-Year A Rainfall=2.47"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 36HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 78S: 3243 Runoff = 1.74 cfs @ 12.14 hrs, Volume= 0.083 af, Depth= 1.58" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MSE 24-hr 3 1-Year A Rainfall=2.47" Area (ac) CN Description * 0.630 91 Weighted 0.630 91 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 7.0 Direct Entry, Subcatchment 78S: 3243 Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)1 0 MSE 24-hr 3 1-Year A Rainfall=2.47" Runoff Area=0.630 ac Runoff Volume=0.083 af Runoff Depth=1.58" Tc=7.0 min CN=91 1.74 cfs MSE 24-hr 3 1-Year A Rainfall=2.47"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 37HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 79S: 3245 Runoff = 7.16 cfs @ 12.14 hrs, Volume= 0.383 af, Depth= 2.24" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MSE 24-hr 3 1-Year A Rainfall=2.47" Area (ac) CN Description * 2.050 98 Weighted 2.050 98 100.00% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 7.0 Direct Entry, Subcatchment 79S: 3245 Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)8 7 6 5 4 3 2 1 0 MSE 24-hr 3 1-Year A Rainfall=2.47" Runoff Area=2.050 ac Runoff Volume=0.383 af Runoff Depth=2.24" Tc=7.0 min CN=98 7.16 cfs MSE 24-hr 3 1-Year A Rainfall=2.47"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 38HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 80S: 3250 Runoff = 0.93 cfs @ 12.14 hrs, Volume= 0.044 af, Depth= 1.50" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MSE 24-hr 3 1-Year A Rainfall=2.47" Area (ac) CN Description * 0.350 90 Weighted 0.350 90 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 7.0 Direct Entry, Subcatchment 80S: 3250 Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)1 0 MSE 24-hr 3 1-Year A Rainfall=2.47" Runoff Area=0.350 ac Runoff Volume=0.044 af Runoff Depth=1.50" Tc=7.0 min CN=90 0.93 cfs MSE 24-hr 3 1-Year A Rainfall=2.47"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 39HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 81S: 3343 Runoff = 4.28 cfs @ 12.31 hrs, Volume= 0.335 af, Depth= 0.68" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MSE 24-hr 3 1-Year A Rainfall=2.47" Area (ac) CN Description * 5.950 76 Weighted 5.950 76 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 19.0 Direct Entry, Subcatchment 81S: 3343 Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)4 3 2 1 0 MSE 24-hr 3 1-Year A Rainfall=2.47" Runoff Area=5.950 ac Runoff Volume=0.335 af Runoff Depth=0.68" Tc=19.0 min CN=76 4.28 cfs MSE 24-hr 3 1-Year A Rainfall=2.47"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 40HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 82S: 3345 Runoff = 1.98 cfs @ 12.15 hrs, Volume= 0.095 af, Depth= 0.77" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MSE 24-hr 3 1-Year A Rainfall=2.47" Area (ac) CN Description * 1.480 78 Weighted 1.480 78 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 7.0 Direct Entry, Subcatchment 82S: 3345 Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)2 1 0 MSE 24-hr 3 1-Year A Rainfall=2.47" Runoff Area=1.480 ac Runoff Volume=0.095 af Runoff Depth=0.77" Tc=7.0 min CN=78 1.98 cfs MSE 24-hr 3 1-Year A Rainfall=2.47"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 41HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 83S: 3348 Runoff = 1.60 cfs @ 12.14 hrs, Volume= 0.075 af, Depth= 1.29" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MSE 24-hr 3 1-Year A Rainfall=2.47" Area (ac) CN Description * 0.700 87 Weighted 0.700 87 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 7.0 Direct Entry, Subcatchment 83S: 3348 Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)1 0 MSE 24-hr 3 1-Year A Rainfall=2.47" Runoff Area=0.700 ac Runoff Volume=0.075 af Runoff Depth=1.29" Tc=7.0 min CN=87 1.60 cfs MSE 24-hr 3 1-Year A Rainfall=2.47"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 42HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 84S: SE12 Runoff = 2.51 cfs @ 12.19 hrs, Volume= 0.143 af, Depth= 0.82" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MSE 24-hr 3 1-Year A Rainfall=2.47" Area (ac) CN Description * 2.100 79 Weighted 2.100 79 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 11.0 Direct Entry, Subcatchment 84S: SE12 Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)2 1 0 MSE 24-hr 3 1-Year A Rainfall=2.47" Runoff Area=2.100 ac Runoff Volume=0.143 af Runoff Depth=0.82" Tc=11.0 min CN=79 2.51 cfs MSE 24-hr 3 1-Year A Rainfall=2.47"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 43HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 85S: 1S Runoff = 1.85 cfs @ 12.28 hrs, Volume= 0.154 af, Depth= 0.41" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MSE 24-hr 3 1-Year A Rainfall=2.47" Area (ac) CN Description * 4.530 69 Weighted 4.530 69 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 15.0 Direct Entry, Subcatchment 85S: 1S Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)2 1 0 MSE 24-hr 3 1-Year A Rainfall=2.47" Runoff Area=4.530 ac Runoff Volume=0.154 af Runoff Depth=0.41" Tc=15.0 min CN=69 1.85 cfs MSE 24-hr 3 1-Year A Rainfall=2.47"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 44HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 86S: 2S Runoff = 1.80 cfs @ 12.44 hrs, Volume= 0.197 af, Depth= 0.41" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MSE 24-hr 3 1-Year A Rainfall=2.47" Area (ac) CN Description * 5.800 69 Weighted 5.800 69 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 25.0 Direct Entry, Subcatchment 86S: 2S Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)2 1 0 MSE 24-hr 3 1-Year A Rainfall=2.47" Runoff Area=5.800 ac Runoff Volume=0.197 af Runoff Depth=0.41" Tc=25.0 min CN=69 1.80 cfs MSE 24-hr 3 1-Year A Rainfall=2.47"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 45HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 87S: M9 Runoff = 12.22 cfs @ 12.47 hrs, Volume= 1.220 af, Depth= 0.68" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MSE 24-hr 3 1-Year A Rainfall=2.47" Area (ac) CN Description * 21.638 76 Weighted 21.638 76 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 29.0 Direct Entry, Subcatchment 87S: M9 Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)13 12 11 10 9 8 7 6 5 4 3 2 1 0 MSE 24-hr 3 1-Year A Rainfall=2.47" Runoff Area=21.638 ac Runoff Volume=1.220 af Runoff Depth=0.68" Tc=29.0 min CN=76 12.22 cfs MSE 24-hr 3 1-Year A Rainfall=2.47"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 46HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Reach 40R: South Drainage [40] Hint: Not Described (Outflow=Inflow) Inflow Area = 51.070 ac, 48.50% Impervious, Inflow Depth = 0.40" for 1-Year A event Inflow = 8.85 cfs @ 12.28 hrs, Volume= 1.707 af Outflow = 8.85 cfs @ 12.28 hrs, Volume= 1.707 af, Atten= 0%, Lag= 0.0 min Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Reach 40R: South Drainage Inflow Outflow Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)9 8 7 6 5 4 3 2 1 0 Inflow Area=51.070 ac 8.85 cfs 8.85 cfs MSE 24-hr 3 1-Year A Rainfall=2.47"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 47HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Reach 42.1R: South [40] Hint: Not Described (Outflow=Inflow) Inflow Area = 9.843 ac, 71.43% Impervious, Inflow Depth = 0.63" for 1-Year A event Inflow = 5.37 cfs @ 12.28 hrs, Volume= 0.520 af Outflow = 5.37 cfs @ 12.28 hrs, Volume= 0.520 af, Atten= 0%, Lag= 0.0 min Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Reach 42.1R: South Inflow Outflow Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)6 5 4 3 2 1 0 Inflow Area=9.843 ac 5.37 cfs 5.37 cfs MSE 24-hr 3 1-Year A Rainfall=2.47"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 48HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Reach 42.2R: Southeast [40] Hint: Not Described (Outflow=Inflow) Inflow Area = 11.515 ac, 75.54% Impervious, Inflow Depth = 0.50" for 1-Year A event Inflow = 1.12 cfs @ 13.43 hrs, Volume= 0.483 af Outflow = 1.12 cfs @ 13.43 hrs, Volume= 0.483 af, Atten= 0%, Lag= 0.0 min Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Reach 42.2R: Southeast Inflow Outflow Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)1 0 Inflow Area=11.515 ac 1.12 cfs 1.12 cfs MSE 24-hr 3 1-Year A Rainfall=2.47"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 49HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Reach 44R: Wetland 4 Channel [40] Hint: Not Described (Outflow=Inflow) Inflow Area = 26.490 ac, 34.12% Impervious, Inflow Depth = 0.31" for 1-Year A event Inflow = 3.11 cfs @ 12.27 hrs, Volume= 0.684 af Outflow = 3.11 cfs @ 12.27 hrs, Volume= 0.684 af, Atten= 0%, Lag= 0.0 min Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Reach 44R: Wetland 4 Channel Inflow Outflow Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)3 2 1 0 Inflow Area=26.490 ac 3.11 cfs 3.11 cfs MSE 24-hr 3 1-Year A Rainfall=2.47"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 50HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Reach 48R: Development to Wetland 4 [40] Hint: Not Described (Outflow=Inflow) Inflow Area = 14.497 ac, 62.34% Impervious, Inflow Depth = 0.50" for 1-Year A event Inflow = 3.13 cfs @ 12.26 hrs, Volume= 0.608 af Outflow = 3.13 cfs @ 12.26 hrs, Volume= 0.608 af, Atten= 0%, Lag= 0.0 min Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Reach 48R: Development to Wetland 4 Inflow Outflow Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)3 2 1 0 Inflow Area=14.497 ac 3.13 cfs 3.13 cfs MSE 24-hr 3 1-Year A Rainfall=2.47"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 51HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Reach 72R: N68 [52] Hint: Inlet/Outlet conditions not evaluated Inflow Area = 4.190 ac, 56.32% Impervious, Inflow Depth = 1.98" for 1-Year A event Inflow = 12.90 cfs @ 12.15 hrs, Volume= 0.693 af Outflow = 12.90 cfs @ 12.15 hrs, Volume= 0.693 af, Atten= 0%, Lag= 0.1 min Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Max. Velocity= 7.07 fps, Min. Travel Time= 0.1 min Avg. Velocity = 1.98 fps, Avg. Travel Time= 0.5 min Peak Storage= 115 cf @ 12.15 hrs Average Depth at Peak Storage= 1.13' Bank-Full Depth= 2.00' Flow Area= 3.1 sf, Capacity= 21.17 cfs 24.0" Round Pipe n= 0.012 Length= 63.0' Slope= 0.0075 '/' Inlet Invert= 872.00', Outlet Invert= 871.53' Reach 72R: N68 Inflow Outflow Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 Inflow Area=4.190 ac Avg. Flow Depth=1.13' Max Vel=7.07 fps 24.0" Round Pipe n=0.012 L=63.0' S=0.0075 '/' Capacity=21.17 cfs 12.90 cfs 12.90 cfs MSE 24-hr 3 1-Year A Rainfall=2.47"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 52HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Pond 40.1P: South East Inflow Area = 3.753 ac, 81.66% Impervious, Inflow Depth = 1.99" for 1-Year A event Inflow = 10.40 cfs @ 12.17 hrs, Volume= 0.622 af Outflow = 0.50 cfs @ 13.59 hrs, Volume= 0.622 af, Atten= 95%, Lag= 84.8 min Discarded = 0.07 cfs @ 7.51 hrs, Volume= 0.433 af Primary = 0.42 cfs @ 13.59 hrs, Volume= 0.189 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 894.88' @ 13.59 hrs Surf.Area= 51,048 sf Storage= 18,588 cf Plug-Flow detention time= 1,316.0 min calculated for 0.622 af (100% of inflow) Center-of-Mass det. time= 1,316.0 min ( 2,081.5 - 765.5 ) Volume Invert Avail.Storage Storage Description #1 893.70' 34,978 cf Custom Stage Data (Prismatic) Listed below (Recalc) 117,410 cf Overall - 818 cf Embedded = 116,593 cf x 30.0% Voids #2 896.00' 40,511 cf Custom Stage Data (Prismatic) Listed below (Recalc) 102,096 cf Overall - 818 cf Embedded = 101,278 cf x 40.0% Voids #3 893.70' 818 cf 8.0" Round Pipe Storage Inside #1 L= 2,343.0' #4 896.00' 818 cf 8.0" Round Pipe Storage Inside #2 L= 2,343.0' 77,125 cf Total Available Storage Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 893.70 51,048 0 0 896.00 51,048 117,410 117,410 Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 896.00 51,048 0 0 898.00 51,048 102,096 102,096 Device Routing Invert Outlet Devices #1 Primary 893.70'12.0" Round Culvert L= 260.0' RCP, sq.cut end projecting, Ke= 0.500 Inlet / Outlet Invert= 893.70' / 891.88' S= 0.0070 '/' Cc= 0.900 n= 0.011 Concrete pipe, straight & clean, Flow Area= 0.79 sf #2 Device 1 894.50'8.0" Vert. Orifice/Grate C= 0.600 #3 Device 1 896.67'12.0" Vert. Orifice/Grate C= 0.600 #4 Discarded 893.70'0.060 in/hr Exfiltration over Surface area Phase-In= 0.01' Discarded OutFlow Max=0.07 cfs @ 7.51 hrs HW=893.71' (Free Discharge) 4=Exfiltration (Exfiltration Controls 0.07 cfs) Primary OutFlow Max=0.42 cfs @ 13.59 hrs HW=894.88' TW=0.00' (Dynamic Tailwater) 1=Culvert (Passes 0.42 cfs of 3.11 cfs potential flow) 2=Orifice/Grate (Orifice Controls 0.42 cfs @ 2.09 fps) 3=Orifice/Grate ( Controls 0.00 cfs) MSE 24-hr 3 1-Year A Rainfall=2.47"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 53HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Pond 40.1P: South East Inflow Outflow Discarded Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)11 10 9 8 7 6 5 4 3 2 1 0 Inflow Area=3.753 ac Peak Elev=894.88' Storage=18,588 cf 10.40 cfs 0.50 cfs 0.07 cfs0.42 cfs MSE 24-hr 3 1-Year A Rainfall=2.47"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 54HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Pond 40.2P: South Central Inflow Area = 4.604 ac, 76.19% Impervious, Inflow Depth = 1.91" for 1-Year A event Inflow = 12.32 cfs @ 12.17 hrs, Volume= 0.734 af Outflow = 0.14 cfs @ 18.94 hrs, Volume= 0.734 af, Atten= 99%, Lag= 406.1 min Discarded = 0.13 cfs @ 9.22 hrs, Volume= 0.732 af Primary = 0.00 cfs @ 18.94 hrs, Volume= 0.002 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 895.83' @ 18.94 hrs Surf.Area= 94,313 sf Storage= 24,679 cf Plug-Flow detention time= 1,663.2 min calculated for 0.734 af (100% of inflow) Center-of-Mass det. time= 1,663.3 min ( 2,430.7 - 767.4 ) Volume Invert Avail.Storage Storage Description #1 895.00' 64,623 cf Custom Stage Data (Prismatic) Listed below (Recalc) 216,920 cf Overall - 1,511 cf Embedded = 215,409 cf x 30.0% Voids #2 897.30' 74,846 cf Custom Stage Data (Prismatic) Listed below (Recalc) 188,626 cf Overall - 1,511 cf Embedded = 187,115 cf x 40.0% Voids #3 895.00' 1,511 cf 8.0" Round Pipe Storage Inside #1 L= 4,328.0' #4 897.30' 1,511 cf 8.0" Round Pipe Storage Inside #2 L= 4,328.0' 142,490 cf Total Available Storage Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 895.00 94,313 0 0 897.30 94,313 216,920 216,920 Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 897.30 94,313 0 0 899.30 94,313 188,626 188,626 Device Routing Invert Outlet Devices #1 Primary 895.00'12.0" Round Culvert L= 250.0' RCP, sq.cut end projecting, Ke= 0.500 Inlet / Outlet Invert= 895.00' / 893.25' S= 0.0070 '/' Cc= 0.900 n= 0.011 Concrete pipe, straight & clean, Flow Area= 0.79 sf #2 Device 1 895.80'8.0" Vert. Orifice/Grate C= 0.600 #3 Device 1 897.97'8.0" Vert. Orifice/Grate C= 0.600 #4 Discarded 895.00'0.060 in/hr Exfiltration over Surface area Phase-In= 0.01' Discarded OutFlow Max=0.13 cfs @ 9.22 hrs HW=895.01' (Free Discharge) 4=Exfiltration (Exfiltration Controls 0.13 cfs) Primary OutFlow Max=0.00 cfs @ 18.94 hrs HW=895.83' TW=0.00' (Dynamic Tailwater) 1=Culvert (Passes 0.00 cfs of 2.18 cfs potential flow) 2=Orifice/Grate (Orifice Controls 0.00 cfs @ 0.64 fps) 3=Orifice/Grate ( Controls 0.00 cfs) MSE 24-hr 3 1-Year A Rainfall=2.47"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 55HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Pond 40.2P: South Central Inflow Outflow Discarded Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)13 12 11 10 9 8 7 6 5 4 3 2 1 0 Inflow Area=4.604 ac Peak Elev=895.83' Storage=24,679 cf 12.32 cfs 0.14 cfs 0.13 cfs 0.00 cfs MSE 24-hr 3 1-Year A Rainfall=2.47"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 56HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Pond 40.3P: South Inflow Area = 5.237 ac, 69.55% Impervious, Inflow Depth = 1.82" for 1-Year A event Inflow = 13.39 cfs @ 12.17 hrs, Volume= 0.796 af Outflow = 0.67 cfs @ 13.57 hrs, Volume= 0.796 af, Atten= 95%, Lag= 84.1 min Discarded = 0.08 cfs @ 7.48 hrs, Volume= 0.520 af Primary = 0.59 cfs @ 13.57 hrs, Volume= 0.276 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 898.76' @ 13.57 hrs Surf.Area= 60,232 sf Storage= 23,422 cf Plug-Flow detention time= 1,270.9 min calculated for 0.796 af (100% of inflow) Center-of-Mass det. time= 1,270.9 min ( 2,040.8 - 770.0 ) Volume Invert Avail.Storage Storage Description #1 897.50' 41,271 cf Custom Stage Data (Prismatic) Listed below (Recalc) 138,534 cf Overall - 965 cf Embedded = 137,569 cf x 30.0% Voids #2 899.80' 47,800 cf Custom Stage Data (Prismatic) Listed below (Recalc) 120,464 cf Overall - 965 cf Embedded = 119,499 cf x 40.0% Voids #3 897.50' 965 cf 8.0" Round Pipe Storage Inside #1 L= 2,764.0' #4 899.80' 965 cf 8.0" Round Pipe Storage Inside #2 L= 2,764.0' 91,000 cf Total Available Storage Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 897.50 60,232 0 0 899.80 60,232 138,534 138,534 Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 899.80 60,232 0 0 901.80 60,232 120,464 120,464 Device Routing Invert Outlet Devices #1 Primary 897.50'12.0" Round Culvert L= 175.0' RCP, sq.cut end projecting, Ke= 0.500 Inlet / Outlet Invert= 897.50' / 896.27' S= 0.0070 '/' Cc= 0.900 n= 0.011 Concrete pipe, straight & clean, Flow Area= 0.79 sf #2 Device 1 898.30'8.0" Vert. Orifice/Grate C= 0.600 #3 Device 1 900.47'8.0" Vert. Orifice/Grate C= 0.600 #4 Discarded 897.50'0.060 in/hr Exfiltration over Surface area Phase-In= 0.01' Discarded OutFlow Max=0.08 cfs @ 7.48 hrs HW=897.51' (Free Discharge) 4=Exfiltration (Exfiltration Controls 0.08 cfs) Primary OutFlow Max=0.59 cfs @ 13.57 hrs HW=898.76' TW=0.00' (Dynamic Tailwater) 1=Culvert (Passes 0.59 cfs of 3.29 cfs potential flow) 2=Orifice/Grate (Orifice Controls 0.59 cfs @ 2.31 fps) 3=Orifice/Grate ( Controls 0.00 cfs) MSE 24-hr 3 1-Year A Rainfall=2.47"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 57HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Pond 40.3P: South Inflow Outflow Discarded Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 Inflow Area=5.237 ac Peak Elev=898.76' Storage=23,422 cf 13.39 cfs 0.67 cfs 0.08 cfs0.59 cfs MSE 24-hr 3 1-Year A Rainfall=2.47"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 58HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Pond 41.1P: South East Inflow Area = 1.607 ac, 85.30% Impervious, Inflow Depth = 2.04" for 1-Year A event Inflow = 4.56 cfs @ 12.17 hrs, Volume= 0.273 af Outflow = 0.06 cfs @ 9.46 hrs, Volume= 0.273 af, Atten= 99%, Lag= 0.0 min Discarded = 0.06 cfs @ 9.46 hrs, Volume= 0.273 af Primary = 0.00 cfs @ 0.00 hrs, Volume= 0.000 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 888.61' @ 17.06 hrs Surf.Area= 45,024 sf Storage= 8,753 cf Plug-Flow detention time= 1,252.5 min calculated for 0.273 af (100% of inflow) Center-of-Mass det. time= 1,252.5 min ( 2,016.9 - 764.3 ) Volume Invert Avail.Storage Storage Description #1 888.00' 30,850 cf Custom Stage Data (Prismatic) Listed below (Recalc) 103,555 cf Overall - 721 cf Embedded = 102,834 cf x 30.0% Voids #2 890.30' 35,731 cf Custom Stage Data (Prismatic) Listed below (Recalc) 90,048 cf Overall - 721 cf Embedded = 89,327 cf x 40.0% Voids #3 888.00' 721 cf 8.0" Round Pipe Storage Inside #1 L= 2,066.0' #4 890.30' 721 cf 8.0" Round Pipe Storage Inside #2 L= 2,066.0' 68,023 cf Total Available Storage Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 888.00 45,024 0 0 890.30 45,024 103,555 103,555 Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 890.30 45,024 0 0 892.30 45,024 90,048 90,048 Device Routing Invert Outlet Devices #1 Primary 888.00'12.0" Round Culvert L= 70.0' RCP, sq.cut end projecting, Ke= 0.500 Inlet / Outlet Invert= 888.00' / 887.51' S= 0.0070 '/' Cc= 0.900 n= 0.011 Concrete pipe, straight & clean, Flow Area= 0.79 sf #2 Device 1 888.80'8.0" Vert. Orifice/Grate C= 0.600 #3 Device 1 890.97'8.0" Vert. Orifice/Grate C= 0.600 #4 Discarded 888.00'0.060 in/hr Exfiltration over Surface area Phase-In= 0.01' Discarded OutFlow Max=0.06 cfs @ 9.46 hrs HW=888.01' (Free Discharge) 4=Exfiltration (Exfiltration Controls 0.06 cfs) Primary OutFlow Max=0.00 cfs @ 0.00 hrs HW=888.00' TW=0.00' (Dynamic Tailwater) 1=Culvert ( Controls 0.00 cfs) 2=Orifice/Grate ( Controls 0.00 cfs) 3=Orifice/Grate ( Controls 0.00 cfs) MSE 24-hr 3 1-Year A Rainfall=2.47"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 59HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Pond 41.1P: South East Inflow Outflow Discarded Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)5 4 3 2 1 0 Inflow Area=1.607 ac Peak Elev=888.61' Storage=8,753 cf 4.56 cfs 0.06 cfs 0.06 cfs 0.00 cfs MSE 24-hr 3 1-Year A Rainfall=2.47"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 60HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Pond 41.2P: South Central Inflow Area = 3.591 ac, 80.17% Impervious, Inflow Depth = 1.97" for 1-Year A event Inflow = 9.86 cfs @ 12.17 hrs, Volume= 0.589 af Outflow = 4.91 cfs @ 12.31 hrs, Volume= 0.589 af, Atten= 50%, Lag= 8.3 min Discarded = 0.02 cfs @ 5.23 hrs, Volume= 0.141 af Primary = 4.88 cfs @ 12.31 hrs, Volume= 0.448 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 883.61' @ 12.31 hrs Surf.Area= 16,787 sf Storage= 10,803 cf Plug-Flow detention time= 452.2 min calculated for 0.589 af (100% of inflow) Center-of-Mass det. time= 452.3 min ( 1,218.3 - 766.0 ) Volume Invert Avail.Storage Storage Description #1 881.50' 11,502 cf Custom Stage Data (Prismatic) Listed below (Recalc) 38,610 cf Overall - 269 cf Embedded = 38,341 cf x 30.0% Voids #2 883.80' 13,322 cf Custom Stage Data (Prismatic) Listed below (Recalc) 33,574 cf Overall - 269 cf Embedded = 33,305 cf x 40.0% Voids #3 881.50' 269 cf 8.0" Round Pipe Storage Inside #1 L= 770.0' #4 883.80' 269 cf 8.0" Round Pipe Storage Inside #2 L= 770.0' 25,362 cf Total Available Storage Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 881.50 16,787 0 0 883.80 16,787 38,610 38,610 Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 883.80 16,787 0 0 885.80 16,787 33,574 33,574 Device Routing Invert Outlet Devices #1 Primary 881.50'18.0" Round Culvert L= 22.0' RCP, sq.cut end projecting, Ke= 0.500 Inlet / Outlet Invert= 881.50' / 881.28' S= 0.0100 '/' Cc= 0.900 n= 0.011 Concrete pipe, straight & clean, Flow Area= 1.77 sf #2 Device 1 882.30'15.0" Vert. Orifice/Grate C= 0.600 #3 Device 1 884.47'18.0" Vert. Orifice/Grate C= 0.600 #4 Discarded 881.50'0.060 in/hr Exfiltration over Surface area Phase-In= 0.01' Discarded OutFlow Max=0.02 cfs @ 5.23 hrs HW=881.51' (Free Discharge) 4=Exfiltration (Exfiltration Controls 0.02 cfs) Primary OutFlow Max=4.88 cfs @ 12.31 hrs HW=883.61' TW=0.00' (Dynamic Tailwater) 1=Culvert (Passes 4.88 cfs of 9.65 cfs potential flow) 2=Orifice/Grate (Orifice Controls 4.88 cfs @ 3.98 fps) 3=Orifice/Grate ( Controls 0.00 cfs) MSE 24-hr 3 1-Year A Rainfall=2.47"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 61HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Pond 41.2P: South Central Inflow Outflow Discarded Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)11 10 9 8 7 6 5 4 3 2 1 0 Inflow Area=3.591 ac Peak Elev=883.61' Storage=10,803 cf 9.86 cfs 4.91 cfs 0.02 cfs 4.88 cfs MSE 24-hr 3 1-Year A Rainfall=2.47"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 62HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Pond 41.3P: South West Inflow Area = 0.686 ac, 93.81% Impervious, Inflow Depth = 2.16" for 1-Year A event Inflow = 2.05 cfs @ 12.17 hrs, Volume= 0.123 af Outflow = 0.03 cfs @ 9.52 hrs, Volume= 0.123 af, Atten= 99%, Lag= 0.0 min Discarded = 0.03 cfs @ 9.52 hrs, Volume= 0.123 af Primary = 0.00 cfs @ 0.00 hrs, Volume= 0.000 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 890.31' @ 16.12 hrs Surf.Area= 22,024 sf Storage= 3,895 cf Plug-Flow detention time= 1,138.2 min calculated for 0.123 af (100% of inflow) Center-of-Mass det. time= 1,138.3 min ( 1,900.0 - 761.8 ) Volume Invert Avail.Storage Storage Description #1 889.75' 15,091 cf Custom Stage Data (Prismatic) Listed below (Recalc) 50,655 cf Overall - 353 cf Embedded = 50,303 cf x 30.0% Voids #2 892.05' 17,478 cf Custom Stage Data (Prismatic) Listed below (Recalc) 44,048 cf Overall - 353 cf Embedded = 43,695 cf x 40.0% Voids #3 889.75' 353 cf 8.0" Round Pipe Storage Inside #1 L= 1,010.0' #4 892.05' 353 cf 8.0" Round Pipe Storage Inside #2 L= 1,010.0' 33,274 cf Total Available Storage Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 889.75 22,024 0 0 892.05 22,024 50,655 50,655 Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 892.05 22,024 0 0 894.05 22,024 44,048 44,048 Device Routing Invert Outlet Devices #1 Primary 889.75'12.0" Round Culvert L= 45.0' RCP, sq.cut end projecting, Ke= 0.500 Inlet / Outlet Invert= 889.75' / 889.43' S= 0.0071 '/' Cc= 0.900 n= 0.011 Concrete pipe, straight & clean, Flow Area= 0.79 sf #2 Device 1 890.55'8.0" Vert. Orifice/Grate C= 0.600 #3 Device 1 892.72'8.0" Vert. Orifice/Grate C= 0.600 #4 Discarded 889.75'0.060 in/hr Exfiltration over Surface area Phase-In= 0.01' Discarded OutFlow Max=0.03 cfs @ 9.52 hrs HW=889.76' (Free Discharge) 4=Exfiltration (Exfiltration Controls 0.03 cfs) Primary OutFlow Max=0.00 cfs @ 0.00 hrs HW=889.75' TW=0.00' (Dynamic Tailwater) 1=Culvert ( Controls 0.00 cfs) 2=Orifice/Grate ( Controls 0.00 cfs) 3=Orifice/Grate ( Controls 0.00 cfs) MSE 24-hr 3 1-Year A Rainfall=2.47"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 63HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Pond 41.3P: South West Inflow Outflow Discarded Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)2 1 0 Inflow Area=0.686 ac Peak Elev=890.31' Storage=3,895 cf 2.05 cfs 0.03 cfs 0.03 cfs 0.00 cfs MSE 24-hr 3 1-Year A Rainfall=2.47"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 64HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Pond 44P: Wetland 4 Inflow Area = 24.628 ac, 36.70% Impervious, Inflow Depth = 0.33" for 1-Year A event Inflow = 3.13 cfs @ 12.26 hrs, Volume= 0.673 af Outflow = 3.11 cfs @ 12.27 hrs, Volume= 0.672 af, Atten= 1%, Lag= 0.9 min Primary = 3.11 cfs @ 12.27 hrs, Volume= 0.672 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 884.30' @ 12.27 hrs Surf.Area= 1,530 sf Storage= 357 cf Plug-Flow detention time= 5.8 min calculated for 0.672 af (100% of inflow) Center-of-Mass det. time= 4.9 min ( 971.7 - 966.7 ) Volume Invert Avail.Storage Storage Description #1 884.00' 37,633 cf Custom Stage Data (Prismatic) Listed below (Recalc) Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 884.00 870 0 0 884.50 1,980 713 713 885.00 3,500 1,370 2,083 886.00 7,800 5,650 7,733 887.00 14,000 10,900 18,633 888.00 24,000 19,000 37,633 Device Routing Invert Outlet Devices #1 Primary 884.03'Asymmetrical Weir, C= 3.27 Offset (feet) 0.00 51.00 133.60 176.00 217.30 239.00 Elev. (feet) 889.78 886.05 884.03 885.84 889.00 889.78 Primary OutFlow Max=3.11 cfs @ 12.27 hrs HW=884.30' TW=0.00' (Dynamic Tailwater) 1=Asymmetrical Weir (Weir Controls 3.11 cfs @ 0.68 fps) MSE 24-hr 3 1-Year A Rainfall=2.47"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 65HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Pond 44P: Wetland 4 Inflow Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)3 2 1 0 Inflow Area=24.628 ac Peak Elev=884.30' Storage=357 cf 3.13 cfs 3.11 cfs MSE 24-hr 3 1-Year A Rainfall=2.47"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 66HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Pond 46P: Triangle Basin Inflow Area = 2.229 ac, 19.60% Impervious, Inflow Depth = 1.14" for 1-Year A event Inflow = 3.36 cfs @ 12.21 hrs, Volume= 0.211 af Outflow = 3.11 cfs @ 12.25 hrs, Volume= 0.211 af, Atten= 7%, Lag= 2.6 min Discarded = 0.00 cfs @ 4.72 hrs, Volume= 0.013 af Primary = 3.11 cfs @ 12.25 hrs, Volume= 0.198 af Secondary = 0.00 cfs @ 0.00 hrs, Volume= 0.000 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 886.35' @ 12.25 hrs Surf.Area= 1,586 sf Storage= 957 cf Plug-Flow detention time= 114.2 min calculated for 0.211 af (100% of inflow) Center-of-Mass det. time= 114.2 min ( 918.6 - 804.4 ) Volume Invert Avail.Storage Storage Description #1 884.37' 1,087 cf Sand section (Prismatic) Listed below (Recalc) 3,648 cf Overall - 24 cf Embedded = 3,623 cf x 30.0% Voids #2 884.37' 24 cf 8.0" Round Pipe Storage Inside #1 L= 70.0' #3 886.67' 159 cf Topsoil (Prismatic) Listed below (Recalc) 793 cf Overall x 20.0% Voids #4 887.17' 14,801 cf Open pond (Prismatic) Listed below (Recalc) 16,071 cf Total Available Storage Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 884.37 1,586 0 0 886.67 1,586 3,648 3,648 Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 886.67 1,586 0 0 887.17 1,586 793 793 Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 887.17 1,586 0 0 890.90 6,350 14,801 14,801 Device Routing Invert Outlet Devices #1 Primary 884.37'18.0" Round Culvert L= 125.0' RCP, sq.cut end projecting, Ke= 0.500 Inlet / Outlet Invert= 884.37' / 884.00' S= 0.0030 '/' Cc= 0.900 n= 0.011 Concrete pipe, straight & clean, Flow Area= 1.77 sf #2 Device 1 885.17'12.0" Vert. Orifice/Grate C= 0.600 #3 Device 1 887.41'12.0" Vert. Orifice/Grate C= 0.600 #4 Secondary 890.75'20.0' long x 5.0' breadth Broad-Crested Rectangular Weir Head (feet) 0.20 0.40 0.60 0.80 1.00 1.20 1.40 1.60 1.80 2.00 2.50 3.00 3.50 4.00 4.50 5.00 5.50 Coef. (English) 2.34 2.50 2.70 2.68 2.68 2.66 2.65 2.65 2.65 MSE 24-hr 3 1-Year A Rainfall=2.47"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 67HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC 2.65 2.67 2.66 2.68 2.70 2.74 2.79 2.88 #5 Discarded 884.37'0.060 in/hr Exfiltration over Surface area Phase-In= 0.01' Discarded OutFlow Max=0.00 cfs @ 4.72 hrs HW=884.38' (Free Discharge) 5=Exfiltration (Exfiltration Controls 0.00 cfs) Primary OutFlow Max=3.11 cfs @ 12.25 hrs HW=886.35' TW=0.00' (Dynamic Tailwater) 1=Culvert (Passes 3.11 cfs of 7.61 cfs potential flow) 2=Orifice/Grate (Orifice Controls 3.11 cfs @ 3.96 fps) 3=Orifice/Grate ( Controls 0.00 cfs) Secondary OutFlow Max=0.00 cfs @ 0.00 hrs HW=884.37' TW=0.00' (Dynamic Tailwater) 4=Broad-Crested Rectangular Weir ( Controls 0.00 cfs) Pond 46P: Triangle Basin Inflow Outflow Discarded Primary Secondary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)3 2 1 0 Inflow Area=2.229 ac Peak Elev=886.35' Storage=957 cf 3.36 cfs 3.11 cfs 0.00 cfs 3.11 cfs 0.00 cfs MSE 24-hr 3 1-Year A Rainfall=2.47"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 68HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Pond 47P: Bluff Creek - West Basin Inflow Area = 7.031 ac, 70.52% Impervious, Inflow Depth = 1.78" for 1-Year A event Inflow = 18.36 cfs @ 12.14 hrs, Volume= 1.045 af Outflow = 0.33 cfs @ 15.26 hrs, Volume= 1.045 af, Atten= 98%, Lag= 187.3 min Discarded = 0.15 cfs @ 9.29 hrs, Volume= 0.912 af Primary = 0.18 cfs @ 15.26 hrs, Volume= 0.134 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 909.23' @ 15.26 hrs Surf.Area= 107,300 sf Storage= 34,443 cf Plug-Flow detention time= 1,691.5 min calculated for 1.045 af (100% of inflow) Center-of-Mass det. time= 1,691.6 min ( 2,468.5 - 776.9 ) Volume Invert Avail.Storage Storage Description #1 908.20' 73,521 cf Custom Stage Data (Prismatic) Listed below (Recalc) 246,790 cf Overall - 1,719 cf Embedded = 245,071 cf x 30.0% Voids #2 910.50' 85,152 cf Custom Stage Data (Prismatic) Listed below (Recalc) 214,600 cf Overall - 1,719 cf Embedded = 212,881 cf x 40.0% Voids #3 908.20' 1,719 cf 8.0" Round Pipe Storage Inside #1 L= 4,925.0' #4 910.50' 1,719 cf 8.0" Round Pipe Storage Inside #2 L= 4,925.0' 162,112 cf Total Available Storage Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 908.20 107,300 0 0 910.50 107,300 246,790 246,790 Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 910.50 107,300 0 0 912.50 107,300 214,600 214,600 Device Routing Invert Outlet Devices #1 Primary 908.20'12.0" Round Culvert L= 307.0' RCP, square edge headwall, Ke= 0.500 Inlet / Outlet Invert= 908.20' / 905.13' S= 0.0100 '/' Cc= 0.900 n= 0.011 Concrete pipe, straight & clean, Flow Area= 0.79 sf #2 Device 1 909.00'8.0" Vert. Orifice/Grate C= 0.600 #3 Device 1 911.24'8.0" Vert. Orifice/Grate C= 0.600 #4 Discarded 908.20'0.060 in/hr Exfiltration over Surface area Phase-In= 0.01' Discarded OutFlow Max=0.15 cfs @ 9.29 hrs HW=908.21' (Free Discharge) 4=Exfiltration (Exfiltration Controls 0.15 cfs) Primary OutFlow Max=0.18 cfs @ 15.26 hrs HW=909.23' TW=0.00' (Dynamic Tailwater) 1=Culvert (Passes 0.18 cfs of 2.76 cfs potential flow) 2=Orifice/Grate (Orifice Controls 0.18 cfs @ 1.64 fps) 3=Orifice/Grate ( Controls 0.00 cfs) MSE 24-hr 3 1-Year A Rainfall=2.47"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 69HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Pond 47P: Bluff Creek - West Basin Inflow Outflow Discarded Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 Inflow Area=7.031 ac Peak Elev=909.23' Storage=34,443 cf 18.36 cfs 0.33 cfs 0.15 cfs 0.18 cfs MSE 24-hr 3 1-Year A Rainfall=2.47"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 70HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Pond 48P: Bluff Creek - East Basin Inflow Area = 3.441 ac, 81.34% Impervious, Inflow Depth = 1.98" for 1-Year A event Inflow = 11.64 cfs @ 12.12 hrs, Volume= 0.569 af Outflow = 0.33 cfs @ 13.62 hrs, Volume= 0.569 af, Atten= 97%, Lag= 89.6 min Discarded = 0.07 cfs @ 7.82 hrs, Volume= 0.438 af Primary = 0.26 cfs @ 13.62 hrs, Volume= 0.131 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 896.43' @ 13.62 hrs Surf.Area= 52,085 sf Storage= 17,504 cf Plug-Flow detention time= 1,431.9 min calculated for 0.569 af (100% of inflow) Center-of-Mass det. time= 1,432.0 min ( 2,193.0 - 761.0 ) Volume Invert Avail.Storage Storage Description #1 895.35' 35,688 cf Custom Stage Data (Prismatic) Listed below (Recalc) 119,795 cf Overall - 834 cf Embedded = 118,961 cf x 30.0% Voids #2 897.65' 41,334 cf Custom Stage Data (Prismatic) Listed below (Recalc) 104,170 cf Overall - 834 cf Embedded = 103,336 cf x 40.0% Voids #3 895.35' 834 cf 8.0" Round Pipe Storage Inside #1 L= 2,390.0' #4 897.65' 834 cf 8.0" Round Pipe Storage Inside #2 L= 2,390.0' 78,691 cf Total Available Storage Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 895.35 52,085 0 0 897.65 52,085 119,795 119,795 Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 897.65 52,085 0 0 899.65 52,085 104,170 104,170 Device Routing Invert Outlet Devices #1 Primary 895.35'12.0" Round Culvert L= 637.0' RCP, square edge headwall, Ke= 0.500 Inlet / Outlet Invert= 895.35' / 888.98' S= 0.0100 '/' Cc= 0.900 n= 0.011 Concrete pipe, straight & clean, Flow Area= 0.79 sf #2 Device 1 896.15'8.0" Vert. Orifice/Grate C= 0.600 #3 Device 1 898.39'8.0" Vert. Orifice/Grate C= 0.600 #4 Discarded 895.35'0.060 in/hr Exfiltration over Surface area Phase-In= 0.01' Discarded OutFlow Max=0.07 cfs @ 7.82 hrs HW=895.36' (Free Discharge) 4=Exfiltration (Exfiltration Controls 0.07 cfs) Primary OutFlow Max=0.26 cfs @ 13.62 hrs HW=896.43' TW=0.00' (Dynamic Tailwater) 1=Culvert (Passes 0.26 cfs of 2.89 cfs potential flow) 2=Orifice/Grate (Orifice Controls 0.26 cfs @ 1.81 fps) 3=Orifice/Grate ( Controls 0.00 cfs) MSE 24-hr 3 1-Year A Rainfall=2.47"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 71HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Pond 48P: Bluff Creek - East Basin Inflow Outflow Discarded Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)13 12 11 10 9 8 7 6 5 4 3 2 1 0 Inflow Area=3.441 ac Peak Elev=896.43' Storage=17,504 cf 11.64 cfs 0.33 cfs 0.07 cfs 0.26 cfs MSE 24-hr 3 1-Year A Rainfall=2.47"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 72HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Pond 48P(2): Bluff Creek - East Basin Inflow Area = 2.152 ac, 68.04% Impervious, Inflow Depth = 1.80" for 1-Year A event Inflow = 5.44 cfs @ 12.17 hrs, Volume= 0.323 af Outflow = 0.44 cfs @ 13.10 hrs, Volume= 0.323 af, Atten= 92%, Lag= 55.9 min Discarded = 0.03 cfs @ 7.51 hrs, Volume= 0.201 af Primary = 0.41 cfs @ 13.10 hrs, Volume= 0.122 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 896.92' @ 13.10 hrs Surf.Area= 24,429 sf Storage= 8,839 cf Plug-Flow detention time= 1,129.9 min calculated for 0.323 af (100% of inflow) Center-of-Mass det. time= 1,130.0 min ( 1,900.5 - 770.6 ) Volume Invert Avail.Storage Storage Description #1 895.75' 16,739 cf Custom Stage Data (Prismatic) Listed below (Recalc) 56,187 cf Overall - 391 cf Embedded = 55,795 cf x 30.0% Voids #2 898.05' 19,387 cf Custom Stage Data (Prismatic) Listed below (Recalc) 48,858 cf Overall - 391 cf Embedded = 48,467 cf x 40.0% Voids #3 895.75' 391 cf 8.0" Round Pipe Storage Inside #1 L= 1,121.0' #4 898.05' 391 cf 8.0" Round Pipe Storage Inside #2 L= 1,121.0' 36,908 cf Total Available Storage Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 895.75 24,429 0 0 898.05 24,429 56,187 56,187 Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 898.05 24,429 0 0 900.05 24,429 48,858 48,858 Device Routing Invert Outlet Devices #1 Primary 895.75'8.0" Round Culvert L= 50.0' RCP, square edge headwall, Ke= 0.500 Inlet / Outlet Invert= 895.75' / 895.25' S= 0.0100 '/' Cc= 0.900 n= 0.011 Concrete pipe, straight & clean, Flow Area= 0.35 sf #2 Device 1 896.55'8.0" Vert. Orifice/Grate C= 0.600 #3 Device 1 898.79'8.0" Vert. Orifice/Grate C= 0.600 #4 Discarded 895.75'0.060 in/hr Exfiltration over Surface area Phase-In= 0.01' Discarded OutFlow Max=0.03 cfs @ 7.51 hrs HW=895.76' (Free Discharge) 4=Exfiltration (Exfiltration Controls 0.03 cfs) Primary OutFlow Max=0.41 cfs @ 13.10 hrs HW=896.92' TW=0.00' (Dynamic Tailwater) 1=Culvert (Passes 0.41 cfs of 1.51 cfs potential flow) 2=Orifice/Grate (Orifice Controls 0.41 cfs @ 2.07 fps) 3=Orifice/Grate ( Controls 0.00 cfs) MSE 24-hr 3 1-Year A Rainfall=2.47"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 73HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Pond 48P(2): Bluff Creek - East Basin Inflow Outflow Discarded Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)6 5 4 3 2 1 0 Inflow Area=2.152 ac Peak Elev=896.92' Storage=8,839 cf 5.44 cfs 0.44 cfs 0.03 cfs0.41 cfs MSE 24-hr 3 1-Year A Rainfall=2.47"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 74HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Pond 71P: Interlachen Inflow Area = 30.860 ac, 27.80% Impervious, Inflow Depth = 1.31" for 1-Year A event Inflow = 55.58 cfs @ 12.15 hrs, Volume= 3.381 af Outflow = 8.74 cfs @ 12.67 hrs, Volume= 3.371 af, Atten= 84%, Lag= 31.3 min Primary = 8.74 cfs @ 12.67 hrs, Volume= 3.371 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 871.46' @ 12.67 hrs Surf.Area= 55,168 sf Storage= 77,301 cf Plug-Flow detention time= 389.0 min calculated for 3.371 af (100% of inflow) Center-of-Mass det. time= 387.6 min ( 1,176.9 - 789.3 ) Volume Invert Avail.Storage Storage Description #1 870.00' 381,460 cf Custom Stage Data (Prismatic) Listed below (Recalc) Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 870.00 50,570 0 0 872.00 56,860 107,430 107,430 875.00 74,330 196,785 304,215 876.00 80,160 77,245 381,460 Device Routing Invert Outlet Devices #1 Primary 870.00'24.0" Round Culvert L= 33.0' RCP, square edge headwall, Ke= 0.500 Inlet / Outlet Invert= 870.00' / 869.67' S= 0.0100 '/' Cc= 0.900 n= 0.012, Flow Area= 3.14 sf #2 Device 1 866.61'24.0" Round Culvert L= 21.0' RCP, end-section conforming to fill, Ke= 0.500 Inlet / Outlet Invert= 866.50' / 866.61' S= -0.0052 '/' Cc= 0.900 n= 0.012, Flow Area= 3.14 sf Primary OutFlow Max=8.74 cfs @ 12.67 hrs HW=871.46' TW=869.74' (Dynamic Tailwater) 1=Culvert (Barrel Controls 8.74 cfs @ 4.95 fps) 2=Culvert (Passes 8.74 cfs of 18.29 cfs potential flow) MSE 24-hr 3 1-Year A Rainfall=2.47"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 75HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Pond 71P: Interlachen Inflow Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)60 55 50 45 40 35 30 25 20 15 10 5 0 Inflow Area=30.860 ac Peak Elev=871.46' Storage=77,301 cf 55.58 cfs 8.74 cfs MSE 24-hr 3 1-Year A Rainfall=2.47"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 76HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Pond 72P: South MNDOT M9 Wetland Inflow Area = 115.998 ac, 28.75% Impervious, Inflow Depth = 0.70" for 1-Year A event Inflow = 32.08 cfs @ 12.41 hrs, Volume= 6.791 af Outflow = 1.48 cfs @ 22.59 hrs, Volume= 6.528 af, Atten= 95%, Lag= 610.8 min Primary = 1.48 cfs @ 22.59 hrs, Volume= 6.528 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 870.15' @ 22.59 hrs Surf.Area= 441,447 sf Storage= 226,809 cf Plug-Flow detention time= 3,107.7 min calculated for 6.528 af (96% of inflow) Center-of-Mass det. time= 2,996.9 min ( 4,030.3 - 1,033.4 ) Volume Invert Avail.Storage Storage Description #1 869.50' 2,891,990 cf Custom Stage Data (Prismatic) Listed below (Recalc) Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 869.50 214,970 0 0 870.00 433,070 162,010 162,010 871.00 489,600 461,335 623,345 872.00 532,650 511,125 1,134,470 875.00 639,030 1,757,520 2,891,990 Device Routing Invert Outlet Devices #1 Primary 869.00'18.0" Round Culvert L= 276.0' RCP, square edge headwall, Ke= 0.500 Inlet / Outlet Invert= 869.00' / 866.93' S= 0.0075 '/' Cc= 0.900 n= 0.013 Concrete pipe, straight & clean, Flow Area= 1.77 sf #2 Device 1 869.50'12.0" Vert. Orifice/Grate C= 0.600 #3 Device 2 869.36'18.0" Round Culvert L= 172.0' RCP, end-section conforming to fill, Ke= 0.500 Inlet / Outlet Invert= 868.50' / 869.36' S= -0.0050 '/' Cc= 0.900 n= 0.013 Concrete pipe, straight & clean, Flow Area= 1.77 sf Primary OutFlow Max=1.48 cfs @ 22.59 hrs HW=870.15' (Free Discharge) 1=Culvert (Passes 1.48 cfs of 5.27 cfs potential flow) 2=Orifice/Grate (Orifice Controls 1.48 cfs @ 2.74 fps) 3=Culvert (Passes 1.48 cfs of 2.84 cfs potential flow) MSE 24-hr 3 1-Year A Rainfall=2.47"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 77HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Pond 72P: South MNDOT M9 Wetland Inflow Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)34 32 30 28 26 24 22 20 18 16 14 12 10 8 6 4 2 0 Inflow Area=115.998 ac Peak Elev=870.15' Storage=226,809 cf 32.08 cfs 1.48 cfs NOAA 24-hr A 1.10-In Equiv Rainfall=1.32"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 78HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Time span=0.00-360.00 hrs, dt=0.01 hrs, 36001 points Runoff by SCS TR-20 method, UH=SCS, Weighted-Q Reach routing by Dyn-Stor-Ind method - Pond routing by Dyn-Stor-Ind method Runoff Area=163,468 sf 81.66% Impervious Runoff Depth=0.94"Subcatchment 40.1S: South - East Tc=10.0 min CN=WQ Runoff=4.79 cfs 0.293 af Runoff Area=200,567 sf 76.19% Impervious Runoff Depth=0.89"Subcatchment 40.2S: South - Central Tc=10.0 min CN=WQ Runoff=5.55 cfs 0.341 af Runoff Area=228,145 sf 69.55% Impervious Runoff Depth=0.83"Subcatchment 40.3S: South - West Tc=10.0 min CN=WQ Runoff=5.86 cfs 0.362 af Runoff Area=69,984 sf 85.30% Impervious Runoff Depth=0.97"Subcatchment 41.1S: South - East Tc=10.0 min CN=WQ Runoff=2.13 cfs 0.130 af Runoff Area=156,419 sf 80.17% Impervious Runoff Depth=0.92"Subcatchment 41.2S: South - Central Tc=10.0 min CN=WQ Runoff=4.51 cfs 0.277 af Runoff Area=29,884 sf 93.81% Impervious Runoff Depth=1.05"Subcatchment 41.3S: South - west Tc=10.0 min CN=WQ Runoff=0.98 cfs 0.060 af Runoff Area=41,871 sf 0.00% Impervious Runoff Depth=0.20"Subcatchment 42.1S: South Tc=5.0 min CN=80 Runoff=0.30 cfs 0.016 af Runoff Area=24,525 sf 0.00% Impervious Runoff Depth=0.20"Subcatchment 42.2S: Southeast Tc=5.0 min CN=80 Runoff=0.17 cfs 0.010 af Runoff Area=3.222 ac 0.00% Impervious Runoff Depth=0.00"Subcatchment 43.1S: East Woods Flow Length=530' Tc=15.2 min CN=55 Runoff=0.00 cfs 0.000 af Runoff Area=1.862 ac 0.00% Impervious Runoff Depth=0.00"Subcatchment 43.2S: Northeast Woods Flow Length=623' Tc=19.5 min CN=55 Runoff=0.00 cfs 0.000 af Runoff Area=441,314 sf 0.00% Impervious Runoff Depth=0.00"Subcatchment 44S: North Woods Flow Length=599' Tc=16.5 min CN=55 Runoff=0.00 cfs 0.000 af Runoff Area=206,303 sf 65.51% Impervious Runoff Depth=0.70"Subcatchment 45S: Central - West Tc=10.0 min CN=WQ Runoff=4.76 cfs 0.276 af Runoff Area=97,082 sf 19.60% Impervious Runoff Depth=0.38"Subcatchment 46S: South Townhomes Flow Length=701' Tc=12.6 min CN=WQ Runoff=0.95 cfs 0.070 af Runoff Area=2.295 ac 80.87% Impervious Runoff Depth=0.93"Subcatchment 47S: Bluff Creek Blvd - West Tc=5.0 min CN=WQ Runoff=3.54 cfs 0.178 af Runoff Area=93,721 sf 68.04% Impervious Runoff Depth=0.82"Subcatchment 48.1S: Direct to 48P (2) Tc=10.0 min CN=WQ Runoff=2.36 cfs 0.146 af Runoff Area=3.441 ac 81.34% Impervious Runoff Depth=0.94"Subcatchment 48S: Bluff Creek Blvd - East Tc=5.0 min CN=WQ Runoff=5.33 cfs 0.268 af NOAA 24-hr A 1.10-In Equiv Rainfall=1.32"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 79HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Runoff Area=2.080 ac 0.00% Impervious Runoff Depth=0.31"Subcatchment 71-1S: Interlacn Subcatch 1 Tc=7.0 min CN=84 Runoff=1.01 cfs 0.054 af Runoff Area=1.160 ac 100.00% Impervious Runoff Depth=1.32"Subcatchment 71-2S: Interlacn Subcatch 2 Tc=7.0 min CN=100 Runoff=2.09 cfs 0.128 af Runoff Area=0.810 ac 0.00% Impervious Runoff Depth=0.78"Subcatchment 72S: 6_Temp Tc=9.0 min CN=94 Runoff=0.97 cfs 0.052 af Runoff Area=2.360 ac 100.00% Impervious Runoff Depth=1.10"Subcatchment 73S: N68 Tc=7.0 min CN=98 Runoff=4.01 cfs 0.217 af Runoff Area=1.020 ac 0.00% Impervious Runoff Depth=0.55"Subcatchment 74S: 5_Temp Tc=9.0 min CN=90 Runoff=0.86 cfs 0.046 af Runoff Area=3.010 ac 100.00% Impervious Runoff Depth=1.10"Subcatchment 75S: 3225 Tc=7.0 min CN=98 Runoff=5.12 cfs 0.277 af Runoff Area=8.310 ac 0.00% Impervious Runoff Depth=0.20"Subcatchment 76S: 3236 Tc=14.0 min CN=80 Runoff=1.61 cfs 0.140 af Runoff Area=0.950 ac 0.00% Impervious Runoff Depth=0.28"Subcatchment 77S: 3238 Tc=7.0 min CN=83 Runoff=0.41 cfs 0.022 af Runoff Area=0.630 ac 0.00% Impervious Runoff Depth=0.60"Subcatchment 78S: 3243 Tc=7.0 min CN=91 Runoff=0.64 cfs 0.031 af Runoff Area=2.050 ac 100.00% Impervious Runoff Depth=1.10"Subcatchment 79S: 3245 Tc=7.0 min CN=98 Runoff=3.49 cfs 0.188 af Runoff Area=0.350 ac 0.00% Impervious Runoff Depth=0.55"Subcatchment 80S: 3250 Tc=7.0 min CN=90 Runoff=0.32 cfs 0.016 af Runoff Area=5.950 ac 0.00% Impervious Runoff Depth=0.12"Subcatchment 81S: 3343 Tc=19.0 min CN=76 Runoff=0.43 cfs 0.061 af Runoff Area=1.480 ac 0.00% Impervious Runoff Depth=0.16"Subcatchment 82S: 3345 Tc=7.0 min CN=78 Runoff=0.27 cfs 0.020 af Runoff Area=0.700 ac 0.00% Impervious Runoff Depth=0.41"Subcatchment 83S: 3348 Tc=7.0 min CN=87 Runoff=0.48 cfs 0.024 af Runoff Area=2.100 ac 0.00% Impervious Runoff Depth=0.18"Subcatchment 84S: SE12 Tc=11.0 min CN=79 Runoff=0.38 cfs 0.032 af Runoff Area=4.530 ac 0.00% Impervious Runoff Depth=0.04"Subcatchment 85S: 1S Tc=15.0 min CN=69 Runoff=0.04 cfs 0.014 af Runoff Area=5.800 ac 0.00% Impervious Runoff Depth=0.04"Subcatchment 86S: 2S Tc=25.0 min CN=69 Runoff=0.05 cfs 0.017 af NOAA 24-hr A 1.10-In Equiv Rainfall=1.32"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 80HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Runoff Area=21.638 ac 0.00% Impervious Runoff Depth=0.12"Subcatchment 87S: M9 Tc=29.0 min CN=76 Runoff=1.34 cfs 0.222 af Inflow=1.74 cfs 0.224 afReach 40R: South Drainage Outflow=1.74 cfs 0.224 af Inflow=1.07 cfs 0.157 afReach 42.1R: South Outflow=1.07 cfs 0.157 af Inflow=0.17 cfs 0.010 afReach 42.2R: Southeast Outflow=0.17 cfs 0.010 af Inflow=0.84 cfs 0.057 afReach 44R: Wetland 4 Channel Outflow=0.84 cfs 0.057 af Inflow=0.88 cfs 0.058 afReach 48R: Development to Wetland 4 Outflow=0.88 cfs 0.058 af Avg. Flow Depth=0.71' Max Vel=5.74 fps Inflow=5.77 cfs 0.316 afReach 72R: N68 24.0" Round Pipe n=0.012 L=63.0' S=0.0075 '/' Capacity=21.17 cfs Outflow=5.77 cfs 0.316 af Peak Elev=894.28' Storage=9,459 cf Inflow=4.79 cfs 0.293 afPond 40.1P: South East Discarded=0.07 cfs 0.293 af Primary=0.00 cfs 0.000 af Outflow=0.07 cfs 0.293 af Peak Elev=895.34' Storage=10,053 cf Inflow=5.55 cfs 0.341 afPond 40.2P: South Central Discarded=0.13 cfs 0.341 af Primary=0.00 cfs 0.000 af Outflow=0.13 cfs 0.341 af Peak Elev=898.11' Storage=11,726 cf Inflow=5.86 cfs 0.362 afPond 40.3P: South Discarded=0.08 cfs 0.362 af Primary=0.00 cfs 0.000 af Outflow=0.08 cfs 0.362 af Peak Elev=888.26' Storage=3,672 cf Inflow=2.13 cfs 0.130 afPond 41.1P: South East Discarded=0.06 cfs 0.130 af Primary=0.00 cfs 0.000 af Outflow=0.06 cfs 0.130 af Peak Elev=882.77' Storage=6,583 cf Inflow=4.51 cfs 0.277 afPond 41.2P: South Central Discarded=0.02 cfs 0.136 af Primary=0.98 cfs 0.141 af Outflow=1.01 cfs 0.277 af Peak Elev=889.99' Storage=1,676 cf Inflow=0.98 cfs 0.060 afPond 41.3P: South West Discarded=0.03 cfs 0.060 af Primary=0.00 cfs 0.000 af Outflow=0.03 cfs 0.060 af Peak Elev=884.19' Storage=203 cf Inflow=0.88 cfs 0.058 afPond 44P: Wetland 4 Outflow=0.84 cfs 0.057 af Peak Elev=885.65' Storage=626 cf Inflow=0.95 cfs 0.070 afPond 46P: Triangle Basin Discarded=0.00 cfs 0.013 af Primary=0.88 cfs 0.058 af Secondary=0.00 cfs 0.000 af Outflow=0.88 cfs 0.070 af Peak Elev=908.61' Storage=14,011 cf Inflow=7.75 cfs 0.454 afPond 47P: Bluff Creek - West Basin Discarded=0.15 cfs 0.454 af Primary=0.00 cfs 0.000 af Outflow=0.15 cfs 0.454 af Peak Elev=895.86' Storage=8,470 cf Inflow=5.33 cfs 0.268 afPond 48P: Bluff Creek - East Basin Discarded=0.07 cfs 0.268 af Primary=0.00 cfs 0.000 af Outflow=0.07 cfs 0.268 af NOAA 24-hr A 1.10-In Equiv Rainfall=1.32"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 81HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Peak Elev=896.36' Storage=4,732 cf Inflow=2.36 cfs 0.146 afPond 48P(2): Bluff Creek - East Basin Discarded=0.03 cfs 0.146 af Primary=0.00 cfs 0.000 af Outflow=0.03 cfs 0.146 af Peak Elev=870.62' Storage=32,140 cf Inflow=20.35 cfs 1.277 afPond 71P: Interlachen Outflow=2.07 cfs 1.267 af Peak Elev=869.73' Storage=60,222 cf Inflow=4.94 cfs 1.776 afPond 72P: South MNDOT M9 Wetland Outflow=0.22 cfs 1.560 af Total Runoff Area = 115.998 ac Runoff Volume = 3.989 af Average Runoff Depth = 0.41" 71.25% Pervious = 82.651 ac 28.75% Impervious = 33.347 ac NOAA 24-hr A 1.10-In Equiv Rainfall=1.32"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 82HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 40.1S: South - East Runoff = 4.79 cfs @ 12.17 hrs, Volume= 0.293 af, Depth= 0.94" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs NOAA 24-hr A 1.10-In Equiv Rainfall=1.32" Area (sf) CN Description 29,976 80 >75% Grass cover, Good, HSG D 133,492 98 Paved parking, HSG D 163,468 Weighted Average 29,976 80 18.34% Pervious Area 133,492 98 81.66% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 10.0 Direct Entry, Subcatchment 40.1S: South - East Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)5 4 3 2 1 0 NOAA 24-hr A 1.10-In Equiv Rainfall=1.32" Runoff Area=163,468 sf Runoff Volume=0.293 af Runoff Depth=0.94" Tc=10.0 min CN=WQ 4.79 cfs NOAA 24-hr A 1.10-In Equiv Rainfall=1.32"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 83HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 40.2S: South - Central Runoff = 5.55 cfs @ 12.17 hrs, Volume= 0.341 af, Depth= 0.89" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs NOAA 24-hr A 1.10-In Equiv Rainfall=1.32" Area (sf) CN Description 47,748 80 >75% Grass cover, Good, HSG D 152,819 98 Paved parking, HSG D 200,567 Weighted Average 47,748 80 23.81% Pervious Area 152,819 98 76.19% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 10.0 Direct Entry, Subcatchment 40.2S: South - Central Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)6 5 4 3 2 1 0 NOAA 24-hr A 1.10-In Equiv Rainfall=1.32" Runoff Area=200,567 sf Runoff Volume=0.341 af Runoff Depth=0.89" Tc=10.0 min CN=WQ 5.55 cfs NOAA 24-hr A 1.10-In Equiv Rainfall=1.32"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 84HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 40.3S: South - West Runoff = 5.86 cfs @ 12.17 hrs, Volume= 0.362 af, Depth= 0.83" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs NOAA 24-hr A 1.10-In Equiv Rainfall=1.32" Area (sf) CN Description 69,464 80 >75% Grass cover, Good, HSG D * 158,681 98 Paved parking & roofs, HSG D 228,145 Weighted Average 69,464 80 30.45% Pervious Area 158,681 98 69.55% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 10.0 Direct Entry, Subcatchment 40.3S: South - West Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)6 5 4 3 2 1 0 NOAA 24-hr A 1.10-In Equiv Rainfall=1.32" Runoff Area=228,145 sf Runoff Volume=0.362 af Runoff Depth=0.83" Tc=10.0 min CN=WQ 5.86 cfs NOAA 24-hr A 1.10-In Equiv Rainfall=1.32"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 85HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 41.1S: South - East Runoff = 2.13 cfs @ 12.17 hrs, Volume= 0.130 af, Depth= 0.97" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs NOAA 24-hr A 1.10-In Equiv Rainfall=1.32" Area (sf) CN Description 10,289 80 >75% Grass cover, Good, HSG D 59,695 98 Paved parking, HSG D 69,984 Weighted Average 10,289 80 14.70% Pervious Area 59,695 98 85.30% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 10.0 Direct Entry, Subcatchment 41.1S: South - East Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)2 1 0 NOAA 24-hr A 1.10-In Equiv Rainfall=1.32" Runoff Area=69,984 sf Runoff Volume=0.130 af Runoff Depth=0.97" Tc=10.0 min CN=WQ 2.13 cfs NOAA 24-hr A 1.10-In Equiv Rainfall=1.32"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 86HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 41.2S: South - Central Runoff = 4.51 cfs @ 12.17 hrs, Volume= 0.277 af, Depth= 0.92" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs NOAA 24-hr A 1.10-In Equiv Rainfall=1.32" Area (sf) CN Description 31,015 80 >75% Grass cover, Good, HSG D 125,404 98 Paved parking, HSG D 156,419 Weighted Average 31,015 80 19.83% Pervious Area 125,404 98 80.17% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 10.0 Direct Entry, Subcatchment 41.2S: South - Central Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)5 4 3 2 1 0 NOAA 24-hr A 1.10-In Equiv Rainfall=1.32" Runoff Area=156,419 sf Runoff Volume=0.277 af Runoff Depth=0.92" Tc=10.0 min CN=WQ 4.51 cfs NOAA 24-hr A 1.10-In Equiv Rainfall=1.32"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 87HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 41.3S: South - west Runoff = 0.98 cfs @ 12.17 hrs, Volume= 0.060 af, Depth= 1.05" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs NOAA 24-hr A 1.10-In Equiv Rainfall=1.32" Area (sf) CN Description 1,850 80 >75% Grass cover, Good, HSG D 28,034 98 Paved parking, HSG D 29,884 Weighted Average 1,850 80 6.19% Pervious Area 28,034 98 93.81% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 10.0 Direct Entry, Subcatchment 41.3S: South - west Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)1 0 NOAA 24-hr A 1.10-In Equiv Rainfall=1.32" Runoff Area=29,884 sf Runoff Volume=0.060 af Runoff Depth=1.05" Tc=10.0 min CN=WQ 0.98 cfs NOAA 24-hr A 1.10-In Equiv Rainfall=1.32"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 88HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 42.1S: South Runoff = 0.30 cfs @ 12.14 hrs, Volume= 0.016 af, Depth= 0.20" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs NOAA 24-hr A 1.10-In Equiv Rainfall=1.32" Area (sf) CN Description 41,871 80 >75% Grass cover, Good, HSG D 41,871 80 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 5.0 Direct Entry, Subcatchment 42.1S: South Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.32 0.3 0.28 0.26 0.24 0.22 0.2 0.18 0.16 0.14 0.12 0.1 0.08 0.06 0.04 0.02 0 NOAA 24-hr A 1.10-In Equiv Rainfall=1.32" Runoff Area=41,871 sf Runoff Volume=0.016 af Runoff Depth=0.20" Tc=5.0 min CN=80 0.30 cfs NOAA 24-hr A 1.10-In Equiv Rainfall=1.32"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 89HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 42.2S: Southeast Runoff = 0.17 cfs @ 12.14 hrs, Volume= 0.010 af, Depth= 0.20" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs NOAA 24-hr A 1.10-In Equiv Rainfall=1.32" Area (sf) CN Description 24,525 80 >75% Grass cover, Good, HSG D 24,525 80 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 5.0 Direct Entry, Subcatchment 42.2S: Southeast Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.19 0.18 0.17 0.16 0.15 0.14 0.13 0.12 0.11 0.1 0.09 0.08 0.07 0.06 0.05 0.04 0.03 0.02 0.01 0 NOAA 24-hr A 1.10-In Equiv Rainfall=1.32" Runoff Area=24,525 sf Runoff Volume=0.010 af Runoff Depth=0.20" Tc=5.0 min CN=80 0.17 cfs NOAA 24-hr A 1.10-In Equiv Rainfall=1.32"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 90HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 43.1S: East Woods [45] Hint: Runoff=Zero Runoff = 0.00 cfs @ 0.00 hrs, Volume= 0.000 af, Depth= 0.00" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs NOAA 24-hr A 1.10-In Equiv Rainfall=1.32" Area (ac) CN Description 3.222 55 Woods, Good, HSG B 3.222 55 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 11.1 75 0.0670 0.11 Sheet Flow, Woods: Light underbrush n= 0.400 P2= 2.87" 4.1 455 0.1380 1.86 Shallow Concentrated Flow, Woodland Kv= 5.0 fps 15.2 530 Total Subcatchment 43.1S: East Woods Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)1 0 NOAA 24-hr A 1.10-In Equiv Rainfall=1.32" Runoff Area=3.222 ac Runoff Volume=0.000 af Runoff Depth=0.00" Flow Length=530' Tc=15.2 min CN=55 0.00 cfs NOAA 24-hr A 1.10-In Equiv Rainfall=1.32"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 91HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 43.2S: Northeast Woods [45] Hint: Runoff=Zero Runoff = 0.00 cfs @ 0.00 hrs, Volume= 0.000 af, Depth= 0.00" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs NOAA 24-hr A 1.10-In Equiv Rainfall=1.32" Area (ac) CN Description 1.862 55 Woods, Good, HSG B 1.862 55 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 14.2 100 0.0650 0.12 Sheet Flow, Woods: Light underbrush n= 0.400 P2= 2.87" 5.3 523 0.1080 1.64 Shallow Concentrated Flow, Woodland Kv= 5.0 fps 19.5 623 Total Subcatchment 43.2S: Northeast Woods Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)1 0 NOAA 24-hr A 1.10-In Equiv Rainfall=1.32" Runoff Area=1.862 ac Runoff Volume=0.000 af Runoff Depth=0.00" Flow Length=623' Tc=19.5 min CN=55 0.00 cfs NOAA 24-hr A 1.10-In Equiv Rainfall=1.32"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 92HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 44S: North Woods [45] Hint: Runoff=Zero Runoff = 0.00 cfs @ 0.00 hrs, Volume= 0.000 af, Depth= 0.00" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs NOAA 24-hr A 1.10-In Equiv Rainfall=1.32" Area (sf) CN Description 441,314 55 Woods, Good, HSG B 441,314 55 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 11.2 75 0.0660 0.11 Sheet Flow, Woods: Light underbrush n= 0.400 P2= 2.87" 5.3 524 0.1090 1.65 Shallow Concentrated Flow, Woodland Kv= 5.0 fps 16.5 599 Total Subcatchment 44S: North Woods Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)1 0 NOAA 24-hr A 1.10-In Equiv Rainfall=1.32" Runoff Area=441,314 sf Runoff Volume=0.000 af Runoff Depth=0.00" Flow Length=599' Tc=16.5 min CN=55 0.00 cfs NOAA 24-hr A 1.10-In Equiv Rainfall=1.32"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 93HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 45S: Central - West Runoff = 4.76 cfs @ 12.18 hrs, Volume= 0.276 af, Depth= 0.70" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs NOAA 24-hr A 1.10-In Equiv Rainfall=1.32" Area (sf) CN Description 159,000 95 Urban commercial, 85% imp, HSG D 47,303 80 >75% Grass cover, Good, HSG D 206,303 Weighted Average 71,153 79 34.49% Pervious Area 135,150 98 65.51% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 10.0 Direct Entry, Subcatchment 45S: Central - West Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)5 4 3 2 1 0 NOAA 24-hr A 1.10-In Equiv Rainfall=1.32" Runoff Area=206,303 sf Runoff Volume=0.276 af Runoff Depth=0.70" Tc=10.0 min CN=WQ 4.76 cfs NOAA 24-hr A 1.10-In Equiv Rainfall=1.32"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 94HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 46S: South Townhomes Runoff = 0.95 cfs @ 12.22 hrs, Volume= 0.070 af, Depth= 0.38" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs NOAA 24-hr A 1.10-In Equiv Rainfall=1.32" Area (sf) CN Description 19,025 98 Paved parking, HSG D 78,057 80 >75% Grass cover, Good, HSG D 97,082 Weighted Average 78,057 80 80.40% Pervious Area 19,025 98 19.60% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 11.7 92 0.0320 0.13 Sheet Flow, Grass: Dense n= 0.240 P2= 2.87" 0.9 609 0.5200 10.82 Shallow Concentrated Flow, Grassed Waterway Kv= 15.0 fps 12.6 701 Total Subcatchment 46S: South Townhomes Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)1 0 NOAA 24-hr A 1.10-In Equiv Rainfall=1.32" Runoff Area=97,082 sf Runoff Volume=0.070 af Runoff Depth=0.38" Flow Length=701' Tc=12.6 min CN=WQ 0.95 cfs NOAA 24-hr A 1.10-In Equiv Rainfall=1.32"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 95HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 47S: Bluff Creek Blvd - West Runoff = 3.54 cfs @ 12.12 hrs, Volume= 0.178 af, Depth= 0.93" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs NOAA 24-hr A 1.10-In Equiv Rainfall=1.32" Area (ac) CN Description 0.439 80 >75% Grass cover, Good, HSG D 1.856 98 Paved roads w/curbs & sewers, HSG D 2.295 Weighted Average 0.439 80 19.13% Pervious Area 1.856 98 80.87% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 5.0 Direct Entry, Subcatchment 47S: Bluff Creek Blvd - West Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)3 2 1 0 NOAA 24-hr A 1.10-In Equiv Rainfall=1.32" Runoff Area=2.295 ac Runoff Volume=0.178 af Runoff Depth=0.93" Tc=5.0 min CN=WQ 3.54 cfs NOAA 24-hr A 1.10-In Equiv Rainfall=1.32"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 96HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 48.1S: Direct to 48P (2) Runoff = 2.36 cfs @ 12.17 hrs, Volume= 0.146 af, Depth= 0.82" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs NOAA 24-hr A 1.10-In Equiv Rainfall=1.32" Area (sf) CN Description 29,956 80 >75% Grass cover, Good, HSG D 63,765 98 Paved parking, HSG D 93,721 Weighted Average 29,956 80 31.96% Pervious Area 63,765 98 68.04% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 10.0 Direct Entry, Subcatchment 48.1S: Direct to 48P (2) Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)2 1 0 NOAA 24-hr A 1.10-In Equiv Rainfall=1.32" Runoff Area=93,721 sf Runoff Volume=0.146 af Runoff Depth=0.82" Tc=10.0 min CN=WQ 2.36 cfs NOAA 24-hr A 1.10-In Equiv Rainfall=1.32"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 97HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 48S: Bluff Creek Blvd - East Runoff = 5.33 cfs @ 12.12 hrs, Volume= 0.268 af, Depth= 0.94" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs NOAA 24-hr A 1.10-In Equiv Rainfall=1.32" Area (ac) CN Description 0.642 80 >75% Grass cover, Good, HSG D 2.799 98 Paved roads w/curbs & sewers, HSG D 3.441 Weighted Average 0.642 80 18.66% Pervious Area 2.799 98 81.34% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 5.0 Direct Entry, Subcatchment 48S: Bluff Creek Blvd - East Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)5 4 3 2 1 0 NOAA 24-hr A 1.10-In Equiv Rainfall=1.32" Runoff Area=3.441 ac Runoff Volume=0.268 af Runoff Depth=0.94" Tc=5.0 min CN=WQ 5.33 cfs NOAA 24-hr A 1.10-In Equiv Rainfall=1.32"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 98HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 71-1S: Interlacn Subcatch 1 Runoff = 1.01 cfs @ 12.15 hrs, Volume= 0.054 af, Depth= 0.31" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs NOAA 24-hr A 1.10-In Equiv Rainfall=1.32" Area (ac) CN Description * 2.080 84 Weoghted 2.080 84 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 7.0 Direct Entry, Subcatchment 71-1S: Interlacn Subcatch 1 Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)1 0 NOAA 24-hr A 1.10-In Equiv Rainfall=1.32" Runoff Area=2.080 ac Runoff Volume=0.054 af Runoff Depth=0.31" Tc=7.0 min CN=84 1.01 cfs NOAA 24-hr A 1.10-In Equiv Rainfall=1.32"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 99HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 71-2S: Interlacn Subcatch 2 Runoff = 2.09 cfs @ 12.14 hrs, Volume= 0.128 af, Depth= 1.32" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs NOAA 24-hr A 1.10-In Equiv Rainfall=1.32" Area (ac) CN Description * 1.160 100 1.160 100 100.00% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 7.0 Direct Entry, Subcatchment 71-2S: Interlacn Subcatch 2 Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)2 1 0 NOAA 24-hr A 1.10-In Equiv Rainfall=1.32" Runoff Area=1.160 ac Runoff Volume=0.128 af Runoff Depth=1.32" Tc=7.0 min CN=100 2.09 cfs NOAA 24-hr A 1.10-In Equiv Rainfall=1.32"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 100HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 72S: 6_Temp Runoff = 0.97 cfs @ 12.17 hrs, Volume= 0.052 af, Depth= 0.78" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs NOAA 24-hr A 1.10-In Equiv Rainfall=1.32" Area (ac) CN Description * 0.810 94 Weighted 0.810 94 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 9.0 Direct Entry, Subcatchment 72S: 6_Temp Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)1 0 NOAA 24-hr A 1.10-In Equiv Rainfall=1.32" Runoff Area=0.810 ac Runoff Volume=0.052 af Runoff Depth=0.78" Tc=9.0 min CN=94 0.97 cfs NOAA 24-hr A 1.10-In Equiv Rainfall=1.32"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 101HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 73S: N68 Runoff = 4.01 cfs @ 12.14 hrs, Volume= 0.217 af, Depth= 1.10" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs NOAA 24-hr A 1.10-In Equiv Rainfall=1.32" Area (ac) CN Description * 2.360 98 Weighted 2.360 98 100.00% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 7.0 Direct Entry, Subcatchment 73S: N68 Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)4 3 2 1 0 NOAA 24-hr A 1.10-In Equiv Rainfall=1.32" Runoff Area=2.360 ac Runoff Volume=0.217 af Runoff Depth=1.10" Tc=7.0 min CN=98 4.01 cfs NOAA 24-hr A 1.10-In Equiv Rainfall=1.32"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 102HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 74S: 5_Temp Runoff = 0.86 cfs @ 12.17 hrs, Volume= 0.046 af, Depth= 0.55" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs NOAA 24-hr A 1.10-In Equiv Rainfall=1.32" Area (ac) CN Description * 1.020 90 1.020 90 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 9.0 Direct Entry, Subcatchment 74S: 5_Temp Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.95 0.9 0.85 0.8 0.75 0.7 0.65 0.6 0.55 0.5 0.45 0.4 0.35 0.3 0.25 0.2 0.15 0.1 0.05 0 NOAA 24-hr A 1.10-In Equiv Rainfall=1.32" Runoff Area=1.020 ac Runoff Volume=0.046 af Runoff Depth=0.55" Tc=9.0 min CN=90 0.86 cfs NOAA 24-hr A 1.10-In Equiv Rainfall=1.32"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 103HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 75S: 3225 Runoff = 5.12 cfs @ 12.14 hrs, Volume= 0.277 af, Depth= 1.10" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs NOAA 24-hr A 1.10-In Equiv Rainfall=1.32" Area (ac) CN Description * 3.010 98 Weighted 3.010 98 100.00% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 7.0 Direct Entry, Subcatchment 75S: 3225 Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)5 4 3 2 1 0 NOAA 24-hr A 1.10-In Equiv Rainfall=1.32" Runoff Area=3.010 ac Runoff Volume=0.277 af Runoff Depth=1.10" Tc=7.0 min CN=98 5.12 cfs NOAA 24-hr A 1.10-In Equiv Rainfall=1.32"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 104HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 76S: 3236 Runoff = 1.61 cfs @ 12.27 hrs, Volume= 0.140 af, Depth= 0.20" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs NOAA 24-hr A 1.10-In Equiv Rainfall=1.32" Area (ac) CN Description * 8.310 80 Weighted 8.310 80 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 14.0 Direct Entry, Subcatchment 76S: 3236 Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)1 0 NOAA 24-hr A 1.10-In Equiv Rainfall=1.32" Runoff Area=8.310 ac Runoff Volume=0.140 af Runoff Depth=0.20" Tc=14.0 min CN=80 1.61 cfs NOAA 24-hr A 1.10-In Equiv Rainfall=1.32"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 105HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 77S: 3238 Runoff = 0.41 cfs @ 12.15 hrs, Volume= 0.022 af, Depth= 0.28" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs NOAA 24-hr A 1.10-In Equiv Rainfall=1.32" Area (ac) CN Description * 0.950 83 Weighted 0.950 83 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 7.0 Direct Entry, Subcatchment 77S: 3238 Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.44 0.42 0.4 0.38 0.36 0.34 0.32 0.3 0.28 0.26 0.24 0.22 0.2 0.18 0.16 0.14 0.12 0.1 0.08 0.06 0.04 0.02 0 NOAA 24-hr A 1.10-In Equiv Rainfall=1.32" Runoff Area=0.950 ac Runoff Volume=0.022 af Runoff Depth=0.28" Tc=7.0 min CN=83 0.41 cfs NOAA 24-hr A 1.10-In Equiv Rainfall=1.32"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 106HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 78S: 3243 Runoff = 0.64 cfs @ 12.15 hrs, Volume= 0.031 af, Depth= 0.60" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs NOAA 24-hr A 1.10-In Equiv Rainfall=1.32" Area (ac) CN Description * 0.630 91 Weighted 0.630 91 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 7.0 Direct Entry, Subcatchment 78S: 3243 Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.7 0.65 0.6 0.55 0.5 0.45 0.4 0.35 0.3 0.25 0.2 0.15 0.1 0.05 0 NOAA 24-hr A 1.10-In Equiv Rainfall=1.32" Runoff Area=0.630 ac Runoff Volume=0.031 af Runoff Depth=0.60" Tc=7.0 min CN=91 0.64 cfs NOAA 24-hr A 1.10-In Equiv Rainfall=1.32"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 107HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 79S: 3245 Runoff = 3.49 cfs @ 12.14 hrs, Volume= 0.188 af, Depth= 1.10" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs NOAA 24-hr A 1.10-In Equiv Rainfall=1.32" Area (ac) CN Description * 2.050 98 Weighted 2.050 98 100.00% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 7.0 Direct Entry, Subcatchment 79S: 3245 Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)3 2 1 0 NOAA 24-hr A 1.10-In Equiv Rainfall=1.32" Runoff Area=2.050 ac Runoff Volume=0.188 af Runoff Depth=1.10" Tc=7.0 min CN=98 3.49 cfs NOAA 24-hr A 1.10-In Equiv Rainfall=1.32"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 108HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 80S: 3250 Runoff = 0.32 cfs @ 12.15 hrs, Volume= 0.016 af, Depth= 0.55" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs NOAA 24-hr A 1.10-In Equiv Rainfall=1.32" Area (ac) CN Description * 0.350 90 Weighted 0.350 90 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 7.0 Direct Entry, Subcatchment 80S: 3250 Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.36 0.34 0.32 0.3 0.28 0.26 0.24 0.22 0.2 0.18 0.16 0.14 0.12 0.1 0.08 0.06 0.04 0.02 0 NOAA 24-hr A 1.10-In Equiv Rainfall=1.32" Runoff Area=0.350 ac Runoff Volume=0.016 af Runoff Depth=0.55" Tc=7.0 min CN=90 0.32 cfs NOAA 24-hr A 1.10-In Equiv Rainfall=1.32"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 109HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 81S: 3343 Runoff = 0.43 cfs @ 12.41 hrs, Volume= 0.061 af, Depth= 0.12" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs NOAA 24-hr A 1.10-In Equiv Rainfall=1.32" Area (ac) CN Description * 5.950 76 Weighted 5.950 76 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 19.0 Direct Entry, Subcatchment 81S: 3343 Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.48 0.46 0.44 0.42 0.4 0.38 0.36 0.34 0.32 0.3 0.28 0.26 0.24 0.22 0.2 0.18 0.16 0.14 0.12 0.1 0.08 0.06 0.04 0.02 0 NOAA 24-hr A 1.10-In Equiv Rainfall=1.32" Runoff Area=5.950 ac Runoff Volume=0.061 af Runoff Depth=0.12" Tc=19.0 min CN=76 0.43 cfs NOAA 24-hr A 1.10-In Equiv Rainfall=1.32"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 110HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 82S: 3345 Runoff = 0.27 cfs @ 12.17 hrs, Volume= 0.020 af, Depth= 0.16" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs NOAA 24-hr A 1.10-In Equiv Rainfall=1.32" Area (ac) CN Description * 1.480 78 Weighted 1.480 78 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 7.0 Direct Entry, Subcatchment 82S: 3345 Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.28 0.26 0.24 0.22 0.2 0.18 0.16 0.14 0.12 0.1 0.08 0.06 0.04 0.02 0 NOAA 24-hr A 1.10-In Equiv Rainfall=1.32" Runoff Area=1.480 ac Runoff Volume=0.020 af Runoff Depth=0.16" Tc=7.0 min CN=78 0.27 cfs NOAA 24-hr A 1.10-In Equiv Rainfall=1.32"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 111HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 83S: 3348 Runoff = 0.48 cfs @ 12.15 hrs, Volume= 0.024 af, Depth= 0.41" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs NOAA 24-hr A 1.10-In Equiv Rainfall=1.32" Area (ac) CN Description * 0.700 87 Weighted 0.700 87 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 7.0 Direct Entry, Subcatchment 83S: 3348 Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.5 0.45 0.4 0.35 0.3 0.25 0.2 0.15 0.1 0.05 0 NOAA 24-hr A 1.10-In Equiv Rainfall=1.32" Runoff Area=0.700 ac Runoff Volume=0.024 af Runoff Depth=0.41" Tc=7.0 min CN=87 0.48 cfs NOAA 24-hr A 1.10-In Equiv Rainfall=1.32"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 112HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 84S: SE12 Runoff = 0.38 cfs @ 12.22 hrs, Volume= 0.032 af, Depth= 0.18" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs NOAA 24-hr A 1.10-In Equiv Rainfall=1.32" Area (ac) CN Description * 2.100 79 Weighted 2.100 79 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 11.0 Direct Entry, Subcatchment 84S: SE12 Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.42 0.4 0.38 0.36 0.34 0.32 0.3 0.28 0.26 0.24 0.22 0.2 0.18 0.16 0.14 0.12 0.1 0.08 0.06 0.04 0.02 0 NOAA 24-hr A 1.10-In Equiv Rainfall=1.32" Runoff Area=2.100 ac Runoff Volume=0.032 af Runoff Depth=0.18" Tc=11.0 min CN=79 0.38 cfs NOAA 24-hr A 1.10-In Equiv Rainfall=1.32"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 113HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 85S: 1S Runoff = 0.04 cfs @ 12.95 hrs, Volume= 0.014 af, Depth= 0.04" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs NOAA 24-hr A 1.10-In Equiv Rainfall=1.32" Area (ac) CN Description * 4.530 69 Weighted 4.530 69 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 15.0 Direct Entry, Subcatchment 85S: 1S Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.044 0.042 0.04 0.038 0.036 0.034 0.032 0.03 0.028 0.026 0.024 0.022 0.02 0.018 0.016 0.014 0.012 0.01 0.008 0.006 0.004 0.002 0 NOAA 24-hr A 1.10-In Equiv Rainfall=1.32" Runoff Area=4.530 ac Runoff Volume=0.014 af Runoff Depth=0.04" Tc=15.0 min CN=69 0.04 cfs NOAA 24-hr A 1.10-In Equiv Rainfall=1.32"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 114HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 86S: 2S Runoff = 0.05 cfs @ 13.14 hrs, Volume= 0.017 af, Depth= 0.04" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs NOAA 24-hr A 1.10-In Equiv Rainfall=1.32" Area (ac) CN Description * 5.800 69 Weighted 5.800 69 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 25.0 Direct Entry, Subcatchment 86S: 2S Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.055 0.05 0.045 0.04 0.035 0.03 0.025 0.02 0.015 0.01 0.005 0 NOAA 24-hr A 1.10-In Equiv Rainfall=1.32" Runoff Area=5.800 ac Runoff Volume=0.017 af Runoff Depth=0.04" Tc=25.0 min CN=69 0.05 cfs NOAA 24-hr A 1.10-In Equiv Rainfall=1.32"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 115HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 87S: M9 Runoff = 1.34 cfs @ 12.60 hrs, Volume= 0.222 af, Depth= 0.12" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs NOAA 24-hr A 1.10-In Equiv Rainfall=1.32" Area (ac) CN Description * 21.638 76 Weighted 21.638 76 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 29.0 Direct Entry, Subcatchment 87S: M9 Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)1 0 NOAA 24-hr A 1.10-In Equiv Rainfall=1.32" Runoff Area=21.638 ac Runoff Volume=0.222 af Runoff Depth=0.12" Tc=29.0 min CN=76 1.34 cfs NOAA 24-hr A 1.10-In Equiv Rainfall=1.32"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 116HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Reach 40R: South Drainage [40] Hint: Not Described (Outflow=Inflow) Inflow Area = 51.070 ac, 48.50% Impervious, Inflow Depth = 0.05" for 1.10-In Equiv event Inflow = 1.74 cfs @ 12.35 hrs, Volume= 0.224 af Outflow = 1.74 cfs @ 12.35 hrs, Volume= 0.224 af, Atten= 0%, Lag= 0.0 min Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Reach 40R: South Drainage Inflow Outflow Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)1 0 Inflow Area=51.070 ac 1.74 cfs 1.74 cfs NOAA 24-hr A 1.10-In Equiv Rainfall=1.32"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 117HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Reach 42.1R: South [40] Hint: Not Described (Outflow=Inflow) Inflow Area = 9.843 ac, 71.43% Impervious, Inflow Depth = 0.19" for 1.10-In Equiv event Inflow = 1.07 cfs @ 12.52 hrs, Volume= 0.157 af Outflow = 1.07 cfs @ 12.52 hrs, Volume= 0.157 af, Atten= 0%, Lag= 0.0 min Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Reach 42.1R: South Inflow Outflow Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)1 0 Inflow Area=9.843 ac 1.07 cfs 1.07 cfs NOAA 24-hr A 1.10-In Equiv Rainfall=1.32"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 118HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Reach 42.2R: Southeast [40] Hint: Not Described (Outflow=Inflow) Inflow Area = 11.515 ac, 75.54% Impervious, Inflow Depth = 0.01" for 1.10-In Equiv event Inflow = 0.17 cfs @ 12.14 hrs, Volume= 0.010 af Outflow = 0.17 cfs @ 12.14 hrs, Volume= 0.010 af, Atten= 0%, Lag= 0.0 min Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Reach 42.2R: Southeast Inflow Outflow Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.19 0.18 0.17 0.16 0.15 0.14 0.13 0.12 0.11 0.1 0.09 0.08 0.07 0.06 0.05 0.04 0.03 0.02 0.01 0 Inflow Area=11.515 ac 0.17 cfs 0.17 cfs NOAA 24-hr A 1.10-In Equiv Rainfall=1.32"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 119HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Reach 44R: Wetland 4 Channel [40] Hint: Not Described (Outflow=Inflow) Inflow Area = 26.490 ac, 34.12% Impervious, Inflow Depth = 0.03" for 1.10-In Equiv event Inflow = 0.84 cfs @ 12.30 hrs, Volume= 0.057 af Outflow = 0.84 cfs @ 12.30 hrs, Volume= 0.057 af, Atten= 0%, Lag= 0.0 min Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Reach 44R: Wetland 4 Channel Inflow Outflow Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.9 0.85 0.8 0.75 0.7 0.65 0.6 0.55 0.5 0.45 0.4 0.35 0.3 0.25 0.2 0.15 0.1 0.05 0 Inflow Area=26.490 ac 0.84 cfs 0.84 cfs NOAA 24-hr A 1.10-In Equiv Rainfall=1.32"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 120HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Reach 48R: Development to Wetland 4 [40] Hint: Not Described (Outflow=Inflow) Inflow Area = 14.497 ac, 62.34% Impervious, Inflow Depth = 0.05" for 1.10-In Equiv event Inflow = 0.88 cfs @ 12.26 hrs, Volume= 0.058 af Outflow = 0.88 cfs @ 12.26 hrs, Volume= 0.058 af, Atten= 0%, Lag= 0.0 min Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Reach 48R: Development to Wetland 4 Inflow Outflow Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.95 0.9 0.85 0.8 0.75 0.7 0.65 0.6 0.55 0.5 0.45 0.4 0.35 0.3 0.25 0.2 0.15 0.1 0.05 0 Inflow Area=14.497 ac 0.88 cfs 0.88 cfs NOAA 24-hr A 1.10-In Equiv Rainfall=1.32"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 121HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Reach 72R: N68 [52] Hint: Inlet/Outlet conditions not evaluated Inflow Area = 4.190 ac, 56.32% Impervious, Inflow Depth = 0.90" for 1.10-In Equiv event Inflow = 5.77 cfs @ 12.15 hrs, Volume= 0.316 af Outflow = 5.77 cfs @ 12.15 hrs, Volume= 0.316 af, Atten= 0%, Lag= 0.1 min Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Max. Velocity= 5.74 fps, Min. Travel Time= 0.2 min Avg. Velocity = 1.59 fps, Avg. Travel Time= 0.7 min Peak Storage= 63 cf @ 12.15 hrs Average Depth at Peak Storage= 0.71' Bank-Full Depth= 2.00' Flow Area= 3.1 sf, Capacity= 21.17 cfs 24.0" Round Pipe n= 0.012 Length= 63.0' Slope= 0.0075 '/' Inlet Invert= 872.00', Outlet Invert= 871.53' Reach 72R: N68 Inflow Outflow Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)6 5 4 3 2 1 0 Inflow Area=4.190 ac Avg. Flow Depth=0.71' Max Vel=5.74 fps 24.0" Round Pipe n=0.012 L=63.0' S=0.0075 '/' Capacity=21.17 cfs 5.77 cfs 5.77 cfs NOAA 24-hr A 1.10-In Equiv Rainfall=1.32"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 122HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Pond 40.1P: South East Inflow Area = 3.753 ac, 81.66% Impervious, Inflow Depth = 0.94" for 1.10-In Equiv event Inflow = 4.79 cfs @ 12.17 hrs, Volume= 0.293 af Outflow = 0.07 cfs @ 10.07 hrs, Volume= 0.293 af, Atten= 99%, Lag= 0.0 min Discarded = 0.07 cfs @ 10.07 hrs, Volume= 0.293 af Primary = 0.00 cfs @ 0.00 hrs, Volume= 0.000 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 894.28' @ 16.95 hrs Surf.Area= 51,048 sf Storage= 9,459 cf Plug-Flow detention time= 1,220.9 min calculated for 0.293 af (100% of inflow) Center-of-Mass det. time= 1,220.9 min ( 1,999.6 - 778.7 ) Volume Invert Avail.Storage Storage Description #1 893.70' 34,978 cf Custom Stage Data (Prismatic) Listed below (Recalc) 117,410 cf Overall - 818 cf Embedded = 116,593 cf x 30.0% Voids #2 896.00' 40,511 cf Custom Stage Data (Prismatic) Listed below (Recalc) 102,096 cf Overall - 818 cf Embedded = 101,278 cf x 40.0% Voids #3 893.70' 818 cf 8.0" Round Pipe Storage Inside #1 L= 2,343.0' #4 896.00' 818 cf 8.0" Round Pipe Storage Inside #2 L= 2,343.0' 77,125 cf Total Available Storage Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 893.70 51,048 0 0 896.00 51,048 117,410 117,410 Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 896.00 51,048 0 0 898.00 51,048 102,096 102,096 Device Routing Invert Outlet Devices #1 Primary 893.70'12.0" Round Culvert L= 260.0' RCP, sq.cut end projecting, Ke= 0.500 Inlet / Outlet Invert= 893.70' / 891.88' S= 0.0070 '/' Cc= 0.900 n= 0.011 Concrete pipe, straight & clean, Flow Area= 0.79 sf #2 Device 1 894.50'8.0" Vert. Orifice/Grate C= 0.600 #3 Device 1 896.67'12.0" Vert. Orifice/Grate C= 0.600 #4 Discarded 893.70'0.060 in/hr Exfiltration over Surface area Phase-In= 0.01' Discarded OutFlow Max=0.07 cfs @ 10.07 hrs HW=893.71' (Free Discharge) 4=Exfiltration (Exfiltration Controls 0.07 cfs) Primary OutFlow Max=0.00 cfs @ 0.00 hrs HW=893.70' TW=0.00' (Dynamic Tailwater) 1=Culvert ( Controls 0.00 cfs) 2=Orifice/Grate ( Controls 0.00 cfs) 3=Orifice/Grate ( Controls 0.00 cfs) NOAA 24-hr A 1.10-In Equiv Rainfall=1.32"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 123HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Pond 40.1P: South East Inflow Outflow Discarded Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)5 4 3 2 1 0 Inflow Area=3.753 ac Peak Elev=894.28' Storage=9,459 cf 4.79 cfs 0.07 cfs 0.07 cfs 0.00 cfs NOAA 24-hr A 1.10-In Equiv Rainfall=1.32"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 124HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Pond 40.2P: South Central Inflow Area = 4.604 ac, 76.19% Impervious, Inflow Depth = 0.89" for 1.10-In Equiv event Inflow = 5.55 cfs @ 12.17 hrs, Volume= 0.341 af Outflow = 0.13 cfs @ 10.83 hrs, Volume= 0.341 af, Atten= 98%, Lag= 0.0 min Discarded = 0.13 cfs @ 10.83 hrs, Volume= 0.341 af Primary = 0.00 cfs @ 0.00 hrs, Volume= 0.000 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 895.34' @ 15.01 hrs Surf.Area= 94,313 sf Storage= 10,053 cf Plug-Flow detention time= 711.3 min calculated for 0.341 af (100% of inflow) Center-of-Mass det. time= 711.3 min ( 1,491.5 - 780.2 ) Volume Invert Avail.Storage Storage Description #1 895.00' 64,623 cf Custom Stage Data (Prismatic) Listed below (Recalc) 216,920 cf Overall - 1,511 cf Embedded = 215,409 cf x 30.0% Voids #2 897.30' 74,846 cf Custom Stage Data (Prismatic) Listed below (Recalc) 188,626 cf Overall - 1,511 cf Embedded = 187,115 cf x 40.0% Voids #3 895.00' 1,511 cf 8.0" Round Pipe Storage Inside #1 L= 4,328.0' #4 897.30' 1,511 cf 8.0" Round Pipe Storage Inside #2 L= 4,328.0' 142,490 cf Total Available Storage Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 895.00 94,313 0 0 897.30 94,313 216,920 216,920 Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 897.30 94,313 0 0 899.30 94,313 188,626 188,626 Device Routing Invert Outlet Devices #1 Primary 895.00'12.0" Round Culvert L= 250.0' RCP, sq.cut end projecting, Ke= 0.500 Inlet / Outlet Invert= 895.00' / 893.25' S= 0.0070 '/' Cc= 0.900 n= 0.011 Concrete pipe, straight & clean, Flow Area= 0.79 sf #2 Device 1 895.80'8.0" Vert. Orifice/Grate C= 0.600 #3 Device 1 897.97'8.0" Vert. Orifice/Grate C= 0.600 #4 Discarded 895.00'0.060 in/hr Exfiltration over Surface area Phase-In= 0.01' Discarded OutFlow Max=0.13 cfs @ 10.83 hrs HW=895.01' (Free Discharge) 4=Exfiltration (Exfiltration Controls 0.13 cfs) Primary OutFlow Max=0.00 cfs @ 0.00 hrs HW=895.00' TW=0.00' (Dynamic Tailwater) 1=Culvert ( Controls 0.00 cfs) 2=Orifice/Grate ( Controls 0.00 cfs) 3=Orifice/Grate ( Controls 0.00 cfs) NOAA 24-hr A 1.10-In Equiv Rainfall=1.32"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 125HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Pond 40.2P: South Central Inflow Outflow Discarded Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)6 5 4 3 2 1 0 Inflow Area=4.604 ac Peak Elev=895.34' Storage=10,053 cf 5.55 cfs 0.13 cfs 0.13 cfs 0.00 cfs NOAA 24-hr A 1.10-In Equiv Rainfall=1.32"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 126HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Pond 40.3P: South Inflow Area = 5.237 ac, 69.55% Impervious, Inflow Depth = 0.83" for 1.10-In Equiv event Inflow = 5.86 cfs @ 12.17 hrs, Volume= 0.362 af Outflow = 0.08 cfs @ 10.06 hrs, Volume= 0.362 af, Atten= 99%, Lag= 0.0 min Discarded = 0.08 cfs @ 10.06 hrs, Volume= 0.362 af Primary = 0.00 cfs @ 0.00 hrs, Volume= 0.000 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 898.11' @ 17.31 hrs Surf.Area= 60,232 sf Storage= 11,726 cf Plug-Flow detention time= 1,284.8 min calculated for 0.362 af (100% of inflow) Center-of-Mass det. time= 1,284.8 min ( 2,067.0 - 782.1 ) Volume Invert Avail.Storage Storage Description #1 897.50' 41,271 cf Custom Stage Data (Prismatic) Listed below (Recalc) 138,534 cf Overall - 965 cf Embedded = 137,569 cf x 30.0% Voids #2 899.80' 47,800 cf Custom Stage Data (Prismatic) Listed below (Recalc) 120,464 cf Overall - 965 cf Embedded = 119,499 cf x 40.0% Voids #3 897.50' 965 cf 8.0" Round Pipe Storage Inside #1 L= 2,764.0' #4 899.80' 965 cf 8.0" Round Pipe Storage Inside #2 L= 2,764.0' 91,000 cf Total Available Storage Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 897.50 60,232 0 0 899.80 60,232 138,534 138,534 Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 899.80 60,232 0 0 901.80 60,232 120,464 120,464 Device Routing Invert Outlet Devices #1 Primary 897.50'12.0" Round Culvert L= 175.0' RCP, sq.cut end projecting, Ke= 0.500 Inlet / Outlet Invert= 897.50' / 896.27' S= 0.0070 '/' Cc= 0.900 n= 0.011 Concrete pipe, straight & clean, Flow Area= 0.79 sf #2 Device 1 898.30'8.0" Vert. Orifice/Grate C= 0.600 #3 Device 1 900.47'8.0" Vert. Orifice/Grate C= 0.600 #4 Discarded 897.50'0.060 in/hr Exfiltration over Surface area Phase-In= 0.01' Discarded OutFlow Max=0.08 cfs @ 10.06 hrs HW=897.51' (Free Discharge) 4=Exfiltration (Exfiltration Controls 0.08 cfs) Primary OutFlow Max=0.00 cfs @ 0.00 hrs HW=897.50' TW=0.00' (Dynamic Tailwater) 1=Culvert ( Controls 0.00 cfs) 2=Orifice/Grate ( Controls 0.00 cfs) 3=Orifice/Grate ( Controls 0.00 cfs) NOAA 24-hr A 1.10-In Equiv Rainfall=1.32"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 127HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Pond 40.3P: South Inflow Outflow Discarded Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)6 5 4 3 2 1 0 Inflow Area=5.237 ac Peak Elev=898.11' Storage=11,726 cf 5.86 cfs 0.08 cfs 0.08 cfs 0.00 cfs NOAA 24-hr A 1.10-In Equiv Rainfall=1.32"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 128HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Pond 41.1P: South East Inflow Area = 1.607 ac, 85.30% Impervious, Inflow Depth = 0.97" for 1.10-In Equiv event Inflow = 2.13 cfs @ 12.17 hrs, Volume= 0.130 af Outflow = 0.06 cfs @ 11.04 hrs, Volume= 0.130 af, Atten= 97%, Lag= 0.0 min Discarded = 0.06 cfs @ 11.04 hrs, Volume= 0.130 af Primary = 0.00 cfs @ 0.00 hrs, Volume= 0.000 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 888.26' @ 14.53 hrs Surf.Area= 45,024 sf Storage= 3,672 cf Plug-Flow detention time= 542.0 min calculated for 0.130 af (100% of inflow) Center-of-Mass det. time= 542.1 min ( 1,319.9 - 777.9 ) Volume Invert Avail.Storage Storage Description #1 888.00' 30,850 cf Custom Stage Data (Prismatic) Listed below (Recalc) 103,555 cf Overall - 721 cf Embedded = 102,834 cf x 30.0% Voids #2 890.30' 35,731 cf Custom Stage Data (Prismatic) Listed below (Recalc) 90,048 cf Overall - 721 cf Embedded = 89,327 cf x 40.0% Voids #3 888.00' 721 cf 8.0" Round Pipe Storage Inside #1 L= 2,066.0' #4 890.30' 721 cf 8.0" Round Pipe Storage Inside #2 L= 2,066.0' 68,023 cf Total Available Storage Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 888.00 45,024 0 0 890.30 45,024 103,555 103,555 Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 890.30 45,024 0 0 892.30 45,024 90,048 90,048 Device Routing Invert Outlet Devices #1 Primary 888.00'12.0" Round Culvert L= 70.0' RCP, sq.cut end projecting, Ke= 0.500 Inlet / Outlet Invert= 888.00' / 887.51' S= 0.0070 '/' Cc= 0.900 n= 0.011 Concrete pipe, straight & clean, Flow Area= 0.79 sf #2 Device 1 888.80'8.0" Vert. Orifice/Grate C= 0.600 #3 Device 1 890.97'8.0" Vert. Orifice/Grate C= 0.600 #4 Discarded 888.00'0.060 in/hr Exfiltration over Surface area Phase-In= 0.01' Discarded OutFlow Max=0.06 cfs @ 11.04 hrs HW=888.01' (Free Discharge) 4=Exfiltration (Exfiltration Controls 0.06 cfs) Primary OutFlow Max=0.00 cfs @ 0.00 hrs HW=888.00' TW=0.00' (Dynamic Tailwater) 1=Culvert ( Controls 0.00 cfs) 2=Orifice/Grate ( Controls 0.00 cfs) 3=Orifice/Grate ( Controls 0.00 cfs) NOAA 24-hr A 1.10-In Equiv Rainfall=1.32"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 129HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Pond 41.1P: South East Inflow Outflow Discarded Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)2 1 0 Inflow Area=1.607 ac Peak Elev=888.26' Storage=3,672 cf 2.13 cfs 0.06 cfs 0.06 cfs 0.00 cfs NOAA 24-hr A 1.10-In Equiv Rainfall=1.32"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 130HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Pond 41.2P: South Central Inflow Area = 3.591 ac, 80.17% Impervious, Inflow Depth = 0.92" for 1.10-In Equiv event Inflow = 4.51 cfs @ 12.17 hrs, Volume= 0.277 af Outflow = 1.01 cfs @ 12.54 hrs, Volume= 0.277 af, Atten= 78%, Lag= 22.0 min Discarded = 0.02 cfs @ 7.96 hrs, Volume= 0.136 af Primary = 0.98 cfs @ 12.54 hrs, Volume= 0.141 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 882.77' @ 12.54 hrs Surf.Area= 16,787 sf Storage= 6,583 cf Plug-Flow detention time= 888.8 min calculated for 0.277 af (100% of inflow) Center-of-Mass det. time= 888.9 min ( 1,668.0 - 779.1 ) Volume Invert Avail.Storage Storage Description #1 881.50' 11,502 cf Custom Stage Data (Prismatic) Listed below (Recalc) 38,610 cf Overall - 269 cf Embedded = 38,341 cf x 30.0% Voids #2 883.80' 13,322 cf Custom Stage Data (Prismatic) Listed below (Recalc) 33,574 cf Overall - 269 cf Embedded = 33,305 cf x 40.0% Voids #3 881.50' 269 cf 8.0" Round Pipe Storage Inside #1 L= 770.0' #4 883.80' 269 cf 8.0" Round Pipe Storage Inside #2 L= 770.0' 25,362 cf Total Available Storage Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 881.50 16,787 0 0 883.80 16,787 38,610 38,610 Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 883.80 16,787 0 0 885.80 16,787 33,574 33,574 Device Routing Invert Outlet Devices #1 Primary 881.50'18.0" Round Culvert L= 22.0' RCP, sq.cut end projecting, Ke= 0.500 Inlet / Outlet Invert= 881.50' / 881.28' S= 0.0100 '/' Cc= 0.900 n= 0.011 Concrete pipe, straight & clean, Flow Area= 1.77 sf #2 Device 1 882.30'15.0" Vert. Orifice/Grate C= 0.600 #3 Device 1 884.47'18.0" Vert. Orifice/Grate C= 0.600 #4 Discarded 881.50'0.060 in/hr Exfiltration over Surface area Phase-In= 0.01' Discarded OutFlow Max=0.02 cfs @ 7.96 hrs HW=881.51' (Free Discharge) 4=Exfiltration (Exfiltration Controls 0.02 cfs) Primary OutFlow Max=0.98 cfs @ 12.54 hrs HW=882.77' TW=0.00' (Dynamic Tailwater) 1=Culvert (Passes 0.98 cfs of 5.27 cfs potential flow) 2=Orifice/Grate (Orifice Controls 0.98 cfs @ 2.33 fps) 3=Orifice/Grate ( Controls 0.00 cfs) NOAA 24-hr A 1.10-In Equiv Rainfall=1.32"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 131HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Pond 41.2P: South Central Inflow Outflow Discarded Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)5 4 3 2 1 0 Inflow Area=3.591 ac Peak Elev=882.77' Storage=6,583 cf 4.51 cfs 1.01 cfs 0.02 cfs 0.98 cfs NOAA 24-hr A 1.10-In Equiv Rainfall=1.32"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 132HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Pond 41.3P: South West Inflow Area = 0.686 ac, 93.81% Impervious, Inflow Depth = 1.05" for 1.10-In Equiv event Inflow = 0.98 cfs @ 12.17 hrs, Volume= 0.060 af Outflow = 0.03 cfs @ 11.08 hrs, Volume= 0.060 af, Atten= 97%, Lag= 0.0 min Discarded = 0.03 cfs @ 11.08 hrs, Volume= 0.060 af Primary = 0.00 cfs @ 0.00 hrs, Volume= 0.000 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 889.99' @ 14.36 hrs Surf.Area= 22,024 sf Storage= 1,676 cf Plug-Flow detention time= 503.7 min calculated for 0.060 af (100% of inflow) Center-of-Mass det. time= 503.7 min ( 1,279.7 - 776.0 ) Volume Invert Avail.Storage Storage Description #1 889.75' 15,091 cf Custom Stage Data (Prismatic) Listed below (Recalc) 50,655 cf Overall - 353 cf Embedded = 50,303 cf x 30.0% Voids #2 892.05' 17,478 cf Custom Stage Data (Prismatic) Listed below (Recalc) 44,048 cf Overall - 353 cf Embedded = 43,695 cf x 40.0% Voids #3 889.75' 353 cf 8.0" Round Pipe Storage Inside #1 L= 1,010.0' #4 892.05' 353 cf 8.0" Round Pipe Storage Inside #2 L= 1,010.0' 33,274 cf Total Available Storage Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 889.75 22,024 0 0 892.05 22,024 50,655 50,655 Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 892.05 22,024 0 0 894.05 22,024 44,048 44,048 Device Routing Invert Outlet Devices #1 Primary 889.75'12.0" Round Culvert L= 45.0' RCP, sq.cut end projecting, Ke= 0.500 Inlet / Outlet Invert= 889.75' / 889.43' S= 0.0071 '/' Cc= 0.900 n= 0.011 Concrete pipe, straight & clean, Flow Area= 0.79 sf #2 Device 1 890.55'8.0" Vert. Orifice/Grate C= 0.600 #3 Device 1 892.72'8.0" Vert. Orifice/Grate C= 0.600 #4 Discarded 889.75'0.060 in/hr Exfiltration over Surface area Phase-In= 0.01' Discarded OutFlow Max=0.03 cfs @ 11.08 hrs HW=889.76' (Free Discharge) 4=Exfiltration (Exfiltration Controls 0.03 cfs) Primary OutFlow Max=0.00 cfs @ 0.00 hrs HW=889.75' TW=0.00' (Dynamic Tailwater) 1=Culvert ( Controls 0.00 cfs) 2=Orifice/Grate ( Controls 0.00 cfs) 3=Orifice/Grate ( Controls 0.00 cfs) NOAA 24-hr A 1.10-In Equiv Rainfall=1.32"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 133HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Pond 41.3P: South West Inflow Outflow Discarded Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)1 0 Inflow Area=0.686 ac Peak Elev=889.99' Storage=1,676 cf 0.98 cfs 0.03 cfs 0.03 cfs 0.00 cfs NOAA 24-hr A 1.10-In Equiv Rainfall=1.32"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 134HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Pond 44P: Wetland 4 Inflow Area = 24.628 ac, 36.70% Impervious, Inflow Depth = 0.03" for 1.10-In Equiv event Inflow = 0.88 cfs @ 12.26 hrs, Volume= 0.058 af Outflow = 0.84 cfs @ 12.30 hrs, Volume= 0.057 af, Atten= 4%, Lag= 2.3 min Primary = 0.84 cfs @ 12.30 hrs, Volume= 0.057 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 884.19' @ 12.30 hrs Surf.Area= 1,289 sf Storage= 203 cf Plug-Flow detention time= 24.6 min calculated for 0.057 af (99% of inflow) Center-of-Mass det. time= 18.4 min ( 866.2 - 847.8 ) Volume Invert Avail.Storage Storage Description #1 884.00' 37,633 cf Custom Stage Data (Prismatic) Listed below (Recalc) Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 884.00 870 0 0 884.50 1,980 713 713 885.00 3,500 1,370 2,083 886.00 7,800 5,650 7,733 887.00 14,000 10,900 18,633 888.00 24,000 19,000 37,633 Device Routing Invert Outlet Devices #1 Primary 884.03'Asymmetrical Weir, C= 3.27 Offset (feet) 0.00 51.00 133.60 176.00 217.30 239.00 Elev. (feet) 889.78 886.05 884.03 885.84 889.00 889.78 Primary OutFlow Max=0.84 cfs @ 12.30 hrs HW=884.19' TW=0.00' (Dynamic Tailwater) 1=Asymmetrical Weir (Weir Controls 0.84 cfs @ 0.52 fps) NOAA 24-hr A 1.10-In Equiv Rainfall=1.32"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 135HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Pond 44P: Wetland 4 Inflow Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.95 0.9 0.85 0.8 0.75 0.7 0.65 0.6 0.55 0.5 0.45 0.4 0.35 0.3 0.25 0.2 0.15 0.1 0.05 0 Inflow Area=24.628 ac Peak Elev=884.19' Storage=203 cf 0.88 cfs 0.84 cfs NOAA 24-hr A 1.10-In Equiv Rainfall=1.32"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 136HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Pond 46P: Triangle Basin Inflow Area = 2.229 ac, 19.60% Impervious, Inflow Depth = 0.38" for 1.10-In Equiv event Inflow = 0.95 cfs @ 12.22 hrs, Volume= 0.070 af Outflow = 0.88 cfs @ 12.26 hrs, Volume= 0.070 af, Atten= 7%, Lag= 2.7 min Discarded = 0.00 cfs @ 7.15 hrs, Volume= 0.013 af Primary = 0.88 cfs @ 12.26 hrs, Volume= 0.058 af Secondary = 0.00 cfs @ 0.00 hrs, Volume= 0.000 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 885.65' @ 12.26 hrs Surf.Area= 1,586 sf Storage= 626 cf Plug-Flow detention time= 318.6 min calculated for 0.070 af (100% of inflow) Center-of-Mass det. time= 318.7 min ( 1,138.0 - 819.3 ) Volume Invert Avail.Storage Storage Description #1 884.37' 1,087 cf Sand section (Prismatic) Listed below (Recalc) 3,648 cf Overall - 24 cf Embedded = 3,623 cf x 30.0% Voids #2 884.37' 24 cf 8.0" Round Pipe Storage Inside #1 L= 70.0' #3 886.67' 159 cf Topsoil (Prismatic) Listed below (Recalc) 793 cf Overall x 20.0% Voids #4 887.17' 14,801 cf Open pond (Prismatic) Listed below (Recalc) 16,071 cf Total Available Storage Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 884.37 1,586 0 0 886.67 1,586 3,648 3,648 Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 886.67 1,586 0 0 887.17 1,586 793 793 Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 887.17 1,586 0 0 890.90 6,350 14,801 14,801 Device Routing Invert Outlet Devices #1 Primary 884.37'18.0" Round Culvert L= 125.0' RCP, sq.cut end projecting, Ke= 0.500 Inlet / Outlet Invert= 884.37' / 884.00' S= 0.0030 '/' Cc= 0.900 n= 0.011 Concrete pipe, straight & clean, Flow Area= 1.77 sf #2 Device 1 885.17'12.0" Vert. Orifice/Grate C= 0.600 #3 Device 1 887.41'12.0" Vert. Orifice/Grate C= 0.600 #4 Secondary 890.75'20.0' long x 5.0' breadth Broad-Crested Rectangular Weir Head (feet) 0.20 0.40 0.60 0.80 1.00 1.20 1.40 1.60 1.80 2.00 2.50 3.00 3.50 4.00 4.50 5.00 5.50 Coef. (English) 2.34 2.50 2.70 2.68 2.68 2.66 2.65 2.65 2.65 NOAA 24-hr A 1.10-In Equiv Rainfall=1.32"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 137HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC 2.65 2.67 2.66 2.68 2.70 2.74 2.79 2.88 #5 Discarded 884.37'0.060 in/hr Exfiltration over Surface area Phase-In= 0.01' Discarded OutFlow Max=0.00 cfs @ 7.15 hrs HW=884.38' (Free Discharge) 5=Exfiltration (Exfiltration Controls 0.00 cfs) Primary OutFlow Max=0.88 cfs @ 12.26 hrs HW=885.65' TW=0.00' (Dynamic Tailwater) 1=Culvert (Passes 0.88 cfs of 4.70 cfs potential flow) 2=Orifice/Grate (Orifice Controls 0.88 cfs @ 2.36 fps) 3=Orifice/Grate ( Controls 0.00 cfs) Secondary OutFlow Max=0.00 cfs @ 0.00 hrs HW=884.37' TW=0.00' (Dynamic Tailwater) 4=Broad-Crested Rectangular Weir ( Controls 0.00 cfs) Pond 46P: Triangle Basin Inflow Outflow Discarded Primary Secondary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)1 0 Inflow Area=2.229 ac Peak Elev=885.65' Storage=626 cf 0.95 cfs 0.88 cfs 0.00 cfs 0.88 cfs 0.00 cfs NOAA 24-hr A 1.10-In Equiv Rainfall=1.32"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 138HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Pond 47P: Bluff Creek - West Basin Inflow Area = 7.031 ac, 70.52% Impervious, Inflow Depth = 0.78" for 1.10-In Equiv event Inflow = 7.75 cfs @ 12.14 hrs, Volume= 0.454 af Outflow = 0.15 cfs @ 10.97 hrs, Volume= 0.454 af, Atten= 98%, Lag= 0.0 min Discarded = 0.15 cfs @ 10.97 hrs, Volume= 0.454 af Primary = 0.00 cfs @ 0.00 hrs, Volume= 0.000 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 908.61' @ 15.98 hrs Surf.Area= 107,300 sf Storage= 14,011 cf Plug-Flow detention time= 895.5 min calculated for 0.454 af (100% of inflow) Center-of-Mass det. time= 895.5 min ( 1,688.0 - 792.5 ) Volume Invert Avail.Storage Storage Description #1 908.20' 73,521 cf Custom Stage Data (Prismatic) Listed below (Recalc) 246,790 cf Overall - 1,719 cf Embedded = 245,071 cf x 30.0% Voids #2 910.50' 85,152 cf Custom Stage Data (Prismatic) Listed below (Recalc) 214,600 cf Overall - 1,719 cf Embedded = 212,881 cf x 40.0% Voids #3 908.20' 1,719 cf 8.0" Round Pipe Storage Inside #1 L= 4,925.0' #4 910.50' 1,719 cf 8.0" Round Pipe Storage Inside #2 L= 4,925.0' 162,112 cf Total Available Storage Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 908.20 107,300 0 0 910.50 107,300 246,790 246,790 Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 910.50 107,300 0 0 912.50 107,300 214,600 214,600 Device Routing Invert Outlet Devices #1 Primary 908.20'12.0" Round Culvert L= 307.0' RCP, square edge headwall, Ke= 0.500 Inlet / Outlet Invert= 908.20' / 905.13' S= 0.0100 '/' Cc= 0.900 n= 0.011 Concrete pipe, straight & clean, Flow Area= 0.79 sf #2 Device 1 909.00'8.0" Vert. Orifice/Grate C= 0.600 #3 Device 1 911.24'8.0" Vert. Orifice/Grate C= 0.600 #4 Discarded 908.20'0.060 in/hr Exfiltration over Surface area Phase-In= 0.01' Discarded OutFlow Max=0.15 cfs @ 10.97 hrs HW=908.21' (Free Discharge) 4=Exfiltration (Exfiltration Controls 0.15 cfs) Primary OutFlow Max=0.00 cfs @ 0.00 hrs HW=908.20' TW=0.00' (Dynamic Tailwater) 1=Culvert ( Controls 0.00 cfs) 2=Orifice/Grate ( Controls 0.00 cfs) 3=Orifice/Grate ( Controls 0.00 cfs) NOAA 24-hr A 1.10-In Equiv Rainfall=1.32"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 139HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Pond 47P: Bluff Creek - West Basin Inflow Outflow Discarded Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)8 7 6 5 4 3 2 1 0 Inflow Area=7.031 ac Peak Elev=908.61' Storage=14,011 cf 7.75 cfs 0.15 cfs 0.15 cfs 0.00 cfs NOAA 24-hr A 1.10-In Equiv Rainfall=1.32"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 140HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Pond 48P: Bluff Creek - East Basin Inflow Area = 3.441 ac, 81.34% Impervious, Inflow Depth = 0.94" for 1.10-In Equiv event Inflow = 5.33 cfs @ 12.12 hrs, Volume= 0.268 af Outflow = 0.07 cfs @ 10.18 hrs, Volume= 0.268 af, Atten= 99%, Lag= 0.0 min Discarded = 0.07 cfs @ 10.18 hrs, Volume= 0.268 af Primary = 0.00 cfs @ 0.00 hrs, Volume= 0.000 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 895.86' @ 16.36 hrs Surf.Area= 52,085 sf Storage= 8,470 cf Plug-Flow detention time= 1,075.9 min calculated for 0.268 af (100% of inflow) Center-of-Mass det. time= 1,076.0 min ( 1,850.1 - 774.2 ) Volume Invert Avail.Storage Storage Description #1 895.35' 35,688 cf Custom Stage Data (Prismatic) Listed below (Recalc) 119,795 cf Overall - 834 cf Embedded = 118,961 cf x 30.0% Voids #2 897.65' 41,334 cf Custom Stage Data (Prismatic) Listed below (Recalc) 104,170 cf Overall - 834 cf Embedded = 103,336 cf x 40.0% Voids #3 895.35' 834 cf 8.0" Round Pipe Storage Inside #1 L= 2,390.0' #4 897.65' 834 cf 8.0" Round Pipe Storage Inside #2 L= 2,390.0' 78,691 cf Total Available Storage Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 895.35 52,085 0 0 897.65 52,085 119,795 119,795 Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 897.65 52,085 0 0 899.65 52,085 104,170 104,170 Device Routing Invert Outlet Devices #1 Primary 895.35'12.0" Round Culvert L= 637.0' RCP, square edge headwall, Ke= 0.500 Inlet / Outlet Invert= 895.35' / 888.98' S= 0.0100 '/' Cc= 0.900 n= 0.011 Concrete pipe, straight & clean, Flow Area= 0.79 sf #2 Device 1 896.15'8.0" Vert. Orifice/Grate C= 0.600 #3 Device 1 898.39'8.0" Vert. Orifice/Grate C= 0.600 #4 Discarded 895.35'0.060 in/hr Exfiltration over Surface area Phase-In= 0.01' Discarded OutFlow Max=0.07 cfs @ 10.18 hrs HW=895.36' (Free Discharge) 4=Exfiltration (Exfiltration Controls 0.07 cfs) Primary OutFlow Max=0.00 cfs @ 0.00 hrs HW=895.35' TW=0.00' (Dynamic Tailwater) 1=Culvert ( Controls 0.00 cfs) 2=Orifice/Grate ( Controls 0.00 cfs) 3=Orifice/Grate ( Controls 0.00 cfs) NOAA 24-hr A 1.10-In Equiv Rainfall=1.32"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 141HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Pond 48P: Bluff Creek - East Basin Inflow Outflow Discarded Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)5 4 3 2 1 0 Inflow Area=3.441 ac Peak Elev=895.86' Storage=8,470 cf 5.33 cfs 0.07 cfs 0.07 cfs 0.00 cfs NOAA 24-hr A 1.10-In Equiv Rainfall=1.32"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 142HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Pond 48P(2): Bluff Creek - East Basin Inflow Area = 2.152 ac, 68.04% Impervious, Inflow Depth = 0.82" for 1.10-In Equiv event Inflow = 2.36 cfs @ 12.17 hrs, Volume= 0.146 af Outflow = 0.03 cfs @ 10.07 hrs, Volume= 0.146 af, Atten= 99%, Lag= 0.0 min Discarded = 0.03 cfs @ 10.07 hrs, Volume= 0.146 af Primary = 0.00 cfs @ 0.00 hrs, Volume= 0.000 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 896.36' @ 17.31 hrs Surf.Area= 24,429 sf Storage= 4,732 cf Plug-Flow detention time= 1,279.3 min calculated for 0.146 af (100% of inflow) Center-of-Mass det. time= 1,279.3 min ( 2,061.9 - 782.6 ) Volume Invert Avail.Storage Storage Description #1 895.75' 16,739 cf Custom Stage Data (Prismatic) Listed below (Recalc) 56,187 cf Overall - 391 cf Embedded = 55,795 cf x 30.0% Voids #2 898.05' 19,387 cf Custom Stage Data (Prismatic) Listed below (Recalc) 48,858 cf Overall - 391 cf Embedded = 48,467 cf x 40.0% Voids #3 895.75' 391 cf 8.0" Round Pipe Storage Inside #1 L= 1,121.0' #4 898.05' 391 cf 8.0" Round Pipe Storage Inside #2 L= 1,121.0' 36,908 cf Total Available Storage Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 895.75 24,429 0 0 898.05 24,429 56,187 56,187 Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 898.05 24,429 0 0 900.05 24,429 48,858 48,858 Device Routing Invert Outlet Devices #1 Primary 895.75'8.0" Round Culvert L= 50.0' RCP, square edge headwall, Ke= 0.500 Inlet / Outlet Invert= 895.75' / 895.25' S= 0.0100 '/' Cc= 0.900 n= 0.011 Concrete pipe, straight & clean, Flow Area= 0.35 sf #2 Device 1 896.55'8.0" Vert. Orifice/Grate C= 0.600 #3 Device 1 898.79'8.0" Vert. Orifice/Grate C= 0.600 #4 Discarded 895.75'0.060 in/hr Exfiltration over Surface area Phase-In= 0.01' Discarded OutFlow Max=0.03 cfs @ 10.07 hrs HW=895.76' (Free Discharge) 4=Exfiltration (Exfiltration Controls 0.03 cfs) Primary OutFlow Max=0.00 cfs @ 0.00 hrs HW=895.75' TW=0.00' (Dynamic Tailwater) 1=Culvert ( Controls 0.00 cfs) 2=Orifice/Grate ( Controls 0.00 cfs) 3=Orifice/Grate ( Controls 0.00 cfs) NOAA 24-hr A 1.10-In Equiv Rainfall=1.32"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 143HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Pond 48P(2): Bluff Creek - East Basin Inflow Outflow Discarded Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)2 1 0 Inflow Area=2.152 ac Peak Elev=896.36' Storage=4,732 cf 2.36 cfs 0.03 cfs 0.03 cfs 0.00 cfs NOAA 24-hr A 1.10-In Equiv Rainfall=1.32"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 144HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Pond 71P: Interlachen Inflow Area = 30.860 ac, 27.80% Impervious, Inflow Depth = 0.50" for 1.10-In Equiv event Inflow = 20.35 cfs @ 12.15 hrs, Volume= 1.277 af Outflow = 2.07 cfs @ 13.07 hrs, Volume= 1.267 af, Atten= 90%, Lag= 55.4 min Primary = 2.07 cfs @ 13.07 hrs, Volume= 1.267 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 870.62' @ 13.07 hrs Surf.Area= 52,531 sf Storage= 32,140 cf Plug-Flow detention time= 617.9 min calculated for 1.267 af (99% of inflow) Center-of-Mass det. time= 613.6 min ( 1,411.7 - 798.1 ) Volume Invert Avail.Storage Storage Description #1 870.00' 381,460 cf Custom Stage Data (Prismatic) Listed below (Recalc) Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 870.00 50,570 0 0 872.00 56,860 107,430 107,430 875.00 74,330 196,785 304,215 876.00 80,160 77,245 381,460 Device Routing Invert Outlet Devices #1 Primary 870.00'24.0" Round Culvert L= 33.0' RCP, square edge headwall, Ke= 0.500 Inlet / Outlet Invert= 870.00' / 869.67' S= 0.0100 '/' Cc= 0.900 n= 0.012, Flow Area= 3.14 sf #2 Device 1 866.61'24.0" Round Culvert L= 21.0' RCP, end-section conforming to fill, Ke= 0.500 Inlet / Outlet Invert= 866.50' / 866.61' S= -0.0052 '/' Cc= 0.900 n= 0.012, Flow Area= 3.14 sf Primary OutFlow Max=2.07 cfs @ 13.07 hrs HW=870.62' TW=869.57' (Dynamic Tailwater) 1=Culvert (Barrel Controls 2.07 cfs @ 3.71 fps) 2=Culvert (Passes 2.07 cfs of 11.94 cfs potential flow) NOAA 24-hr A 1.10-In Equiv Rainfall=1.32"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 145HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Pond 71P: Interlachen Inflow Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 Inflow Area=30.860 ac Peak Elev=870.62' Storage=32,140 cf 20.35 cfs 2.07 cfs NOAA 24-hr A 1.10-In Equiv Rainfall=1.32"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 146HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Pond 72P: South MNDOT M9 Wetland Inflow Area = 115.998 ac, 28.75% Impervious, Inflow Depth = 0.18" for 1.10-In Equiv event Inflow = 4.94 cfs @ 12.56 hrs, Volume= 1.776 af Outflow = 0.22 cfs @ 26.88 hrs, Volume= 1.560 af, Atten= 96%, Lag= 858.8 min Primary = 0.22 cfs @ 26.88 hrs, Volume= 1.560 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 869.73' @ 26.88 hrs Surf.Area= 314,244 sf Storage= 60,222 cf Plug-Flow detention time= 4,820.6 min calculated for 1.560 af (88% of inflow) Center-of-Mass det. time= 4,526.1 min ( 5,790.4 - 1,264.4 ) Volume Invert Avail.Storage Storage Description #1 869.50' 2,891,990 cf Custom Stage Data (Prismatic) Listed below (Recalc) Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 869.50 214,970 0 0 870.00 433,070 162,010 162,010 871.00 489,600 461,335 623,345 872.00 532,650 511,125 1,134,470 875.00 639,030 1,757,520 2,891,990 Device Routing Invert Outlet Devices #1 Primary 869.00'18.0" Round Culvert L= 276.0' RCP, square edge headwall, Ke= 0.500 Inlet / Outlet Invert= 869.00' / 866.93' S= 0.0075 '/' Cc= 0.900 n= 0.013 Concrete pipe, straight & clean, Flow Area= 1.77 sf #2 Device 1 869.50'12.0" Vert. Orifice/Grate C= 0.600 #3 Device 2 869.36'18.0" Round Culvert L= 172.0' RCP, end-section conforming to fill, Ke= 0.500 Inlet / Outlet Invert= 868.50' / 869.36' S= -0.0050 '/' Cc= 0.900 n= 0.013 Concrete pipe, straight & clean, Flow Area= 1.77 sf Primary OutFlow Max=0.22 cfs @ 26.88 hrs HW=869.73' (Free Discharge) 1=Culvert (Passes 0.22 cfs of 2.42 cfs potential flow) 2=Orifice/Grate (Orifice Controls 0.22 cfs @ 1.62 fps) 3=Culvert (Passes 0.22 cfs of 0.69 cfs potential flow) NOAA 24-hr A 1.10-In Equiv Rainfall=1.32"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 147HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Pond 72P: South MNDOT M9 Wetland Inflow Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)5 4 3 2 1 0 Inflow Area=115.998 ac Peak Elev=869.73' Storage=60,222 cf 4.94 cfs 0.22 cfs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 148HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Time span=0.00-360.00 hrs, dt=0.01 hrs, 36001 points Runoff by SCS TR-20 method, UH=SCS, Weighted-Q Reach routing by Dyn-Stor-Ind method - Pond routing by Dyn-Stor-Ind method Runoff Area=163,468 sf 81.66% Impervious Runoff Depth=2.37"Subcatchment 40.1S: South - East Tc=10.0 min CN=WQ Runoff=11.92 cfs 0.740 af Runoff Area=200,567 sf 76.19% Impervious Runoff Depth=2.29"Subcatchment 40.2S: South - Central Tc=10.0 min CN=WQ Runoff=14.15 cfs 0.877 af Runoff Area=228,145 sf 69.55% Impervious Runoff Depth=2.19"Subcatchment 40.3S: South - West Tc=10.0 min CN=WQ Runoff=15.44 cfs 0.954 af Runoff Area=69,984 sf 85.30% Impervious Runoff Depth=2.42"Subcatchment 41.1S: South - East Tc=10.0 min CN=WQ Runoff=5.21 cfs 0.324 af Runoff Area=156,419 sf 80.17% Impervious Runoff Depth=2.34"Subcatchment 41.2S: South - Central Tc=10.0 min CN=WQ Runoff=11.30 cfs 0.702 af Runoff Area=29,884 sf 93.81% Impervious Runoff Depth=2.55"Subcatchment 41.3S: South - west Tc=10.0 min CN=WQ Runoff=2.33 cfs 0.146 af Runoff Area=41,871 sf 0.00% Impervious Runoff Depth=1.15"Subcatchment 42.1S: South Tc=5.0 min CN=80 Runoff=2.06 cfs 0.092 af Runoff Area=24,525 sf 0.00% Impervious Runoff Depth=1.15"Subcatchment 42.2S: Southeast Tc=5.0 min CN=80 Runoff=1.20 cfs 0.054 af Runoff Area=3.222 ac 0.00% Impervious Runoff Depth=0.16"Subcatchment 43.1S: East Woods Flow Length=530' Tc=15.2 min CN=55 Runoff=0.19 cfs 0.043 af Runoff Area=1.862 ac 0.00% Impervious Runoff Depth=0.16"Subcatchment 43.2S: Northeast Woods Flow Length=623' Tc=19.5 min CN=55 Runoff=0.11 cfs 0.025 af Runoff Area=441,314 sf 0.00% Impervious Runoff Depth=0.16"Subcatchment 44S: North Woods Flow Length=599' Tc=16.5 min CN=55 Runoff=0.60 cfs 0.136 af Runoff Area=206,303 sf 65.51% Impervious Runoff Depth=2.05"Subcatchment 45S: Central - West Tc=10.0 min CN=WQ Runoff=13.75 cfs 0.811 af Runoff Area=97,082 sf 19.60% Impervious Runoff Depth=1.44"Subcatchment 46S: South Townhomes Flow Length=701' Tc=12.6 min CN=WQ Runoff=4.04 cfs 0.268 af Runoff Area=2.295 ac 80.87% Impervious Runoff Depth=2.35"Subcatchment 47S: Bluff Creek Blvd - West Tc=5.0 min CN=WQ Runoff=9.21 cfs 0.450 af Runoff Area=93,721 sf 68.04% Impervious Runoff Depth=2.16"Subcatchment 48.1S: Direct to 48P (2) Tc=10.0 min CN=WQ Runoff=6.28 cfs 0.388 af Runoff Area=3.441 ac 81.34% Impervious Runoff Depth=2.36"Subcatchment 48S: Bluff Creek Blvd - East Tc=5.0 min CN=WQ Runoff=13.85 cfs 0.677 af MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 149HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Runoff Area=2.080 ac 0.00% Impervious Runoff Depth=1.41"Subcatchment 71-1S: Interlacn Subcatch 1 Tc=7.0 min CN=84 Runoff=4.95 cfs 0.244 af Runoff Area=1.160 ac 100.00% Impervious Runoff Depth=2.87"Subcatchment 71-2S: Interlacn Subcatch 2 Tc=7.0 min CN=100 Runoff=4.76 cfs 0.277 af Runoff Area=0.810 ac 0.00% Impervious Runoff Depth=2.22"Subcatchment 72S: 6_Temp Tc=9.0 min CN=94 Runoff=2.69 cfs 0.150 af Runoff Area=2.360 ac 100.00% Impervious Runoff Depth=2.64"Subcatchment 73S: N68 Tc=7.0 min CN=98 Runoff=9.53 cfs 0.519 af Runoff Area=1.020 ac 0.00% Impervious Runoff Depth=1.87"Subcatchment 74S: 5_Temp Tc=9.0 min CN=90 Runoff=2.91 cfs 0.159 af Runoff Area=3.010 ac 100.00% Impervious Runoff Depth=2.64"Subcatchment 75S: 3225 Tc=7.0 min CN=98 Runoff=12.15 cfs 0.662 af Runoff Area=8.310 ac 0.00% Impervious Runoff Depth=1.15"Subcatchment 76S: 3236 Tc=14.0 min CN=80 Runoff=11.70 cfs 0.799 af Runoff Area=0.950 ac 0.00% Impervious Runoff Depth=1.34"Subcatchment 77S: 3238 Tc=7.0 min CN=83 Runoff=2.15 cfs 0.106 af Runoff Area=0.630 ac 0.00% Impervious Runoff Depth=1.95"Subcatchment 78S: 3243 Tc=7.0 min CN=91 Runoff=2.06 cfs 0.102 af Runoff Area=2.050 ac 100.00% Impervious Runoff Depth=2.64"Subcatchment 79S: 3245 Tc=7.0 min CN=98 Runoff=8.27 cfs 0.451 af Runoff Area=0.350 ac 0.00% Impervious Runoff Depth=1.87"Subcatchment 80S: 3250 Tc=7.0 min CN=90 Runoff=1.10 cfs 0.054 af Runoff Area=5.950 ac 0.00% Impervious Runoff Depth=0.93"Subcatchment 81S: 3343 Tc=19.0 min CN=76 Runoff=5.57 cfs 0.460 af Runoff Area=1.480 ac 0.00% Impervious Runoff Depth=1.04"Subcatchment 82S: 3345 Tc=7.0 min CN=78 Runoff=2.51 cfs 0.128 af Runoff Area=0.700 ac 0.00% Impervious Runoff Depth=1.63"Subcatchment 83S: 3348 Tc=7.0 min CN=87 Runoff=1.93 cfs 0.095 af Runoff Area=2.100 ac 0.00% Impervious Runoff Depth=1.09"Subcatchment 84S: SE12 Tc=11.0 min CN=79 Runoff=3.13 cfs 0.192 af Runoff Area=4.530 ac 0.00% Impervious Runoff Depth=0.60"Subcatchment 85S: 1S Tc=15.0 min CN=69 Runoff=2.68 cfs 0.227 af Runoff Area=5.800 ac 0.00% Impervious Runoff Depth=0.60"Subcatchment 86S: 2S Tc=25.0 min CN=69 Runoff=2.66 cfs 0.291 af MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 150HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Runoff Area=21.638 ac 0.00% Impervious Runoff Depth=0.93"Subcatchment 87S: M9 Tc=29.0 min CN=76 Runoff=16.15 cfs 1.674 af Inflow=11.37 cfs 2.641 afReach 40R: South Drainage Outflow=11.37 cfs 2.641 af Inflow=6.22 cfs 0.714 afReach 42.1R: South Outflow=6.22 cfs 0.714 af Inflow=1.94 cfs 0.749 afReach 42.2R: Southeast Outflow=1.94 cfs 0.749 af Inflow=4.03 cfs 1.134 afReach 44R: Wetland 4 Channel Outflow=4.03 cfs 1.134 af Inflow=3.82 cfs 0.973 afReach 48R: Development to Wetland 4 Outflow=3.82 cfs 0.973 af Avg. Flow Depth=1.24' Max Vel=7.29 fps Inflow=14.88 cfs 0.828 afReach 72R: N68 24.0" Round Pipe n=0.012 L=63.0' S=0.0075 '/' Capacity=21.17 cfs Outflow=14.88 cfs 0.828 af Peak Elev=895.01' Storage=20,705 cf Inflow=11.92 cfs 0.740 afPond 40.1P: South East Discarded=0.07 cfs 0.448 af Primary=0.71 cfs 0.292 af Outflow=0.78 cfs 0.740 af Peak Elev=895.96' Storage=28,248 cf Inflow=14.15 cfs 0.877 afPond 40.2P: South Central Discarded=0.13 cfs 0.810 af Primary=0.09 cfs 0.067 af Outflow=0.22 cfs 0.877 af Peak Elev=898.92' Storage=26,423 cf Inflow=15.44 cfs 0.954 afPond 40.3P: South Discarded=0.08 cfs 0.538 af Primary=0.91 cfs 0.417 af Outflow=1.00 cfs 0.954 af Peak Elev=888.74' Storage=10,444 cf Inflow=5.21 cfs 0.324 afPond 41.1P: South East Discarded=0.06 cfs 0.324 af Primary=0.00 cfs 0.000 af Outflow=0.06 cfs 0.324 af Peak Elev=883.79' Storage=11,745 cf Inflow=11.30 cfs 0.702 afPond 41.2P: South Central Discarded=0.02 cfs 0.146 af Primary=5.51 cfs 0.555 af Outflow=5.53 cfs 0.702 af Peak Elev=890.41' Storage=4,610 cf Inflow=2.33 cfs 0.146 afPond 41.3P: South West Discarded=0.03 cfs 0.146 af Primary=0.00 cfs 0.000 af Outflow=0.03 cfs 0.146 af Peak Elev=884.33' Storage=401 cf Inflow=4.01 cfs 1.110 afPond 44P: Wetland 4 Outflow=4.00 cfs 1.109 af Peak Elev=886.61' Storage=1,083 cf Inflow=4.04 cfs 0.268 afPond 46P: Triangle Basin Discarded=0.00 cfs 0.013 af Primary=3.67 cfs 0.255 af Secondary=0.00 cfs 0.000 af Outflow=3.67 cfs 0.268 af Peak Elev=909.38' Storage=39,068 cf Inflow=20.85 cfs 1.261 afPond 47P: Bluff Creek - West Basin Discarded=0.15 cfs 0.959 af Primary=0.42 cfs 0.302 af Outflow=0.57 cfs 1.261 af Peak Elev=896.56' Storage=19,491 cf Inflow=13.85 cfs 0.677 afPond 48P: Bluff Creek - East Basin Discarded=0.07 cfs 0.454 af Primary=0.49 cfs 0.223 af Outflow=0.56 cfs 0.677 af MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 151HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Peak Elev=897.06' Storage=9,848 cf Inflow=6.28 cfs 0.388 afPond 48P(2): Bluff Creek - East Basin Discarded=0.03 cfs 0.208 af Primary=0.69 cfs 0.180 af Outflow=0.72 cfs 0.388 af Peak Elev=871.72' Storage=91,701 cf Inflow=64.95 cfs 4.207 afPond 71P: Interlachen Outflow=11.21 cfs 4.197 af Peak Elev=870.31' Storage=299,243 cf Inflow=43.02 cfs 9.221 afPond 72P: South MNDOT M9 Wetland Outflow=2.09 cfs 8.946 af Total Runoff Area = 115.998 ac Runoff Volume = 13.279 af Average Runoff Depth = 1.37" 71.25% Pervious = 82.651 ac 28.75% Impervious = 33.347 ac MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 152HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 40.1S: South - East Runoff = 11.92 cfs @ 12.13 hrs, Volume= 0.740 af, Depth= 2.37" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Area (sf) CN Description 29,976 80 >75% Grass cover, Good, HSG D 133,492 98 Paved parking, HSG D 163,468 Weighted Average 29,976 80 18.34% Pervious Area 133,492 98 81.66% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 10.0 Direct Entry, Subcatchment 40.1S: South - East Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)13 12 11 10 9 8 7 6 5 4 3 2 1 0 MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Runoff Area=163,468 sf Runoff Volume=0.740 af Runoff Depth=2.37" Tc=10.0 min CN=WQ 11.92 cfs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 153HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 40.2S: South - Central Runoff = 14.15 cfs @ 12.13 hrs, Volume= 0.877 af, Depth= 2.29" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Area (sf) CN Description 47,748 80 >75% Grass cover, Good, HSG D 152,819 98 Paved parking, HSG D 200,567 Weighted Average 47,748 80 23.81% Pervious Area 152,819 98 76.19% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 10.0 Direct Entry, Subcatchment 40.2S: South - Central Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Runoff Area=200,567 sf Runoff Volume=0.877 af Runoff Depth=2.29" Tc=10.0 min CN=WQ 14.15 cfs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 154HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 40.3S: South - West Runoff = 15.44 cfs @ 12.13 hrs, Volume= 0.954 af, Depth= 2.19" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Area (sf) CN Description 69,464 80 >75% Grass cover, Good, HSG D * 158,681 98 Paved parking & roofs, HSG D 228,145 Weighted Average 69,464 80 30.45% Pervious Area 158,681 98 69.55% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 10.0 Direct Entry, Subcatchment 40.3S: South - West Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Runoff Area=228,145 sf Runoff Volume=0.954 af Runoff Depth=2.19" Tc=10.0 min CN=WQ 15.44 cfs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 155HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 41.1S: South - East Runoff = 5.21 cfs @ 12.13 hrs, Volume= 0.324 af, Depth= 2.42" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Area (sf) CN Description 10,289 80 >75% Grass cover, Good, HSG D 59,695 98 Paved parking, HSG D 69,984 Weighted Average 10,289 80 14.70% Pervious Area 59,695 98 85.30% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 10.0 Direct Entry, Subcatchment 41.1S: South - East Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)5 4 3 2 1 0 MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Runoff Area=69,984 sf Runoff Volume=0.324 af Runoff Depth=2.42" Tc=10.0 min CN=WQ 5.21 cfs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 156HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 41.2S: South - Central Runoff = 11.30 cfs @ 12.13 hrs, Volume= 0.702 af, Depth= 2.34" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Area (sf) CN Description 31,015 80 >75% Grass cover, Good, HSG D 125,404 98 Paved parking, HSG D 156,419 Weighted Average 31,015 80 19.83% Pervious Area 125,404 98 80.17% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 10.0 Direct Entry, Subcatchment 41.2S: South - Central Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)12 11 10 9 8 7 6 5 4 3 2 1 0 MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Runoff Area=156,419 sf Runoff Volume=0.702 af Runoff Depth=2.34" Tc=10.0 min CN=WQ 11.30 cfs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 157HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 41.3S: South - west Runoff = 2.33 cfs @ 12.13 hrs, Volume= 0.146 af, Depth= 2.55" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Area (sf) CN Description 1,850 80 >75% Grass cover, Good, HSG D 28,034 98 Paved parking, HSG D 29,884 Weighted Average 1,850 80 6.19% Pervious Area 28,034 98 93.81% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 10.0 Direct Entry, Subcatchment 41.3S: South - west Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)2 1 0 MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Runoff Area=29,884 sf Runoff Volume=0.146 af Runoff Depth=2.55" Tc=10.0 min CN=WQ 2.33 cfs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 158HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 42.1S: South Runoff = 2.06 cfs @ 12.08 hrs, Volume= 0.092 af, Depth= 1.15" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Area (sf) CN Description 41,871 80 >75% Grass cover, Good, HSG D 41,871 80 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 5.0 Direct Entry, Subcatchment 42.1S: South Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)2 1 0 MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Runoff Area=41,871 sf Runoff Volume=0.092 af Runoff Depth=1.15" Tc=5.0 min CN=80 2.06 cfs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 159HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 42.2S: Southeast Runoff = 1.20 cfs @ 12.08 hrs, Volume= 0.054 af, Depth= 1.15" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Area (sf) CN Description 24,525 80 >75% Grass cover, Good, HSG D 24,525 80 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 5.0 Direct Entry, Subcatchment 42.2S: Southeast Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)1 0 MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Runoff Area=24,525 sf Runoff Volume=0.054 af Runoff Depth=1.15" Tc=5.0 min CN=80 1.20 cfs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 160HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 43.1S: East Woods Runoff = 0.19 cfs @ 12.58 hrs, Volume= 0.043 af, Depth= 0.16" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Area (ac) CN Description 3.222 55 Woods, Good, HSG B 3.222 55 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 11.1 75 0.0670 0.11 Sheet Flow, Woods: Light underbrush n= 0.400 P2= 2.87" 4.1 455 0.1380 1.86 Shallow Concentrated Flow, Woodland Kv= 5.0 fps 15.2 530 Total Subcatchment 43.1S: East Woods Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.21 0.2 0.19 0.18 0.17 0.16 0.15 0.14 0.13 0.12 0.11 0.1 0.09 0.08 0.07 0.06 0.05 0.04 0.03 0.02 0.01 0 MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Runoff Area=3.222 ac Runoff Volume=0.043 af Runoff Depth=0.16" Flow Length=530' Tc=15.2 min CN=55 0.19 cfs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 161HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 43.2S: Northeast Woods Runoff = 0.11 cfs @ 12.62 hrs, Volume= 0.025 af, Depth= 0.16" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Area (ac) CN Description 1.862 55 Woods, Good, HSG B 1.862 55 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 14.2 100 0.0650 0.12 Sheet Flow, Woods: Light underbrush n= 0.400 P2= 2.87" 5.3 523 0.1080 1.64 Shallow Concentrated Flow, Woodland Kv= 5.0 fps 19.5 623 Total Subcatchment 43.2S: Northeast Woods Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.12 0.115 0.11 0.105 0.1 0.095 0.09 0.085 0.08 0.075 0.07 0.065 0.06 0.055 0.05 0.045 0.04 0.035 0.03 0.025 0.02 0.015 0.01 0.005 0 MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Runoff Area=1.862 ac Runoff Volume=0.025 af Runoff Depth=0.16" Flow Length=623' Tc=19.5 min CN=55 0.11 cfs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 162HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 44S: North Woods Runoff = 0.60 cfs @ 12.60 hrs, Volume= 0.136 af, Depth= 0.16" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Area (sf) CN Description 441,314 55 Woods, Good, HSG B 441,314 55 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 11.2 75 0.0660 0.11 Sheet Flow, Woods: Light underbrush n= 0.400 P2= 2.87" 5.3 524 0.1090 1.65 Shallow Concentrated Flow, Woodland Kv= 5.0 fps 16.5 599 Total Subcatchment 44S: North Woods Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.65 0.6 0.55 0.5 0.45 0.4 0.35 0.3 0.25 0.2 0.15 0.1 0.05 0 MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Runoff Area=441,314 sf Runoff Volume=0.136 af Runoff Depth=0.16" Flow Length=599' Tc=16.5 min CN=55 0.60 cfs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 163HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 45S: Central - West Runoff = 13.75 cfs @ 12.13 hrs, Volume= 0.811 af, Depth= 2.05" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Area (sf) CN Description 159,000 95 Urban commercial, 85% imp, HSG D 47,303 80 >75% Grass cover, Good, HSG D 206,303 Weighted Average 71,153 79 34.49% Pervious Area 135,150 98 65.51% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 10.0 Direct Entry, Subcatchment 45S: Central - West Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Runoff Area=206,303 sf Runoff Volume=0.811 af Runoff Depth=2.05" Tc=10.0 min CN=WQ 13.75 cfs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 164HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 46S: South Townhomes Runoff = 4.04 cfs @ 12.17 hrs, Volume= 0.268 af, Depth= 1.44" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Area (sf) CN Description 19,025 98 Paved parking, HSG D 78,057 80 >75% Grass cover, Good, HSG D 97,082 Weighted Average 78,057 80 80.40% Pervious Area 19,025 98 19.60% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 11.7 92 0.0320 0.13 Sheet Flow, Grass: Dense n= 0.240 P2= 2.87" 0.9 609 0.5200 10.82 Shallow Concentrated Flow, Grassed Waterway Kv= 15.0 fps 12.6 701 Total Subcatchment 46S: South Townhomes Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)4 3 2 1 0 MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Runoff Area=97,082 sf Runoff Volume=0.268 af Runoff Depth=1.44" Flow Length=701' Tc=12.6 min CN=WQ 4.04 cfs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 165HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 47S: Bluff Creek Blvd - West Runoff = 9.21 cfs @ 12.07 hrs, Volume= 0.450 af, Depth= 2.35" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Area (ac) CN Description 0.439 80 >75% Grass cover, Good, HSG D 1.856 98 Paved roads w/curbs & sewers, HSG D 2.295 Weighted Average 0.439 80 19.13% Pervious Area 1.856 98 80.87% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 5.0 Direct Entry, Subcatchment 47S: Bluff Creek Blvd - West Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)10 9 8 7 6 5 4 3 2 1 0 MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Runoff Area=2.295 ac Runoff Volume=0.450 af Runoff Depth=2.35" Tc=5.0 min CN=WQ 9.21 cfs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 166HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 48.1S: Direct to 48P (2) Runoff = 6.28 cfs @ 12.13 hrs, Volume= 0.388 af, Depth= 2.16" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Area (sf) CN Description 29,956 80 >75% Grass cover, Good, HSG D 63,765 98 Paved parking, HSG D 93,721 Weighted Average 29,956 80 31.96% Pervious Area 63,765 98 68.04% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 10.0 Direct Entry, Subcatchment 48.1S: Direct to 48P (2) Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)7 6 5 4 3 2 1 0 MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Runoff Area=93,721 sf Runoff Volume=0.388 af Runoff Depth=2.16" Tc=10.0 min CN=WQ 6.28 cfs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 167HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 48S: Bluff Creek Blvd - East Runoff = 13.85 cfs @ 12.07 hrs, Volume= 0.677 af, Depth= 2.36" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Area (ac) CN Description 0.642 80 >75% Grass cover, Good, HSG D 2.799 98 Paved roads w/curbs & sewers, HSG D 3.441 Weighted Average 0.642 80 18.66% Pervious Area 2.799 98 81.34% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 5.0 Direct Entry, Subcatchment 48S: Bluff Creek Blvd - East Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Runoff Area=3.441 ac Runoff Volume=0.677 af Runoff Depth=2.36" Tc=5.0 min CN=WQ 13.85 cfs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 168HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 71-1S: Interlacn Subcatch 1 Runoff = 4.95 cfs @ 12.10 hrs, Volume= 0.244 af, Depth= 1.41" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Area (ac) CN Description * 2.080 84 Weoghted 2.080 84 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 7.0 Direct Entry, Subcatchment 71-1S: Interlacn Subcatch 1 Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)5 4 3 2 1 0 MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Runoff Area=2.080 ac Runoff Volume=0.244 af Runoff Depth=1.41" Tc=7.0 min CN=84 4.95 cfs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 169HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 71-2S: Interlacn Subcatch 2 Runoff = 4.76 cfs @ 12.09 hrs, Volume= 0.277 af, Depth= 2.87" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Area (ac) CN Description * 1.160 100 1.160 100 100.00% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 7.0 Direct Entry, Subcatchment 71-2S: Interlacn Subcatch 2 Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)5 4 3 2 1 0 MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Runoff Area=1.160 ac Runoff Volume=0.277 af Runoff Depth=2.87" Tc=7.0 min CN=100 4.76 cfs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 170HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 72S: 6_Temp Runoff = 2.69 cfs @ 12.12 hrs, Volume= 0.150 af, Depth= 2.22" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Area (ac) CN Description * 0.810 94 Weighted 0.810 94 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 9.0 Direct Entry, Subcatchment 72S: 6_Temp Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)3 2 1 0 MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Runoff Area=0.810 ac Runoff Volume=0.150 af Runoff Depth=2.22" Tc=9.0 min CN=94 2.69 cfs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 171HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 73S: N68 Runoff = 9.53 cfs @ 12.09 hrs, Volume= 0.519 af, Depth= 2.64" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Area (ac) CN Description * 2.360 98 Weighted 2.360 98 100.00% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 7.0 Direct Entry, Subcatchment 73S: N68 Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)10 9 8 7 6 5 4 3 2 1 0 MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Runoff Area=2.360 ac Runoff Volume=0.519 af Runoff Depth=2.64" Tc=7.0 min CN=98 9.53 cfs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 172HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 74S: 5_Temp Runoff = 2.91 cfs @ 12.12 hrs, Volume= 0.159 af, Depth= 1.87" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Area (ac) CN Description * 1.020 90 1.020 90 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 9.0 Direct Entry, Subcatchment 74S: 5_Temp Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)3 2 1 0 MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Runoff Area=1.020 ac Runoff Volume=0.159 af Runoff Depth=1.87" Tc=9.0 min CN=90 2.91 cfs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 173HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 75S: 3225 Runoff = 12.15 cfs @ 12.09 hrs, Volume= 0.662 af, Depth= 2.64" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Area (ac) CN Description * 3.010 98 Weighted 3.010 98 100.00% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 7.0 Direct Entry, Subcatchment 75S: 3225 Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)13 12 11 10 9 8 7 6 5 4 3 2 1 0 MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Runoff Area=3.010 ac Runoff Volume=0.662 af Runoff Depth=2.64" Tc=7.0 min CN=98 12.15 cfs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 174HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 76S: 3236 Runoff = 11.70 cfs @ 12.20 hrs, Volume= 0.799 af, Depth= 1.15" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Area (ac) CN Description * 8.310 80 Weighted 8.310 80 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 14.0 Direct Entry, Subcatchment 76S: 3236 Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)13 12 11 10 9 8 7 6 5 4 3 2 1 0 MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Runoff Area=8.310 ac Runoff Volume=0.799 af Runoff Depth=1.15" Tc=14.0 min CN=80 11.70 cfs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 175HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 77S: 3238 Runoff = 2.15 cfs @ 12.10 hrs, Volume= 0.106 af, Depth= 1.34" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Area (ac) CN Description * 0.950 83 Weighted 0.950 83 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 7.0 Direct Entry, Subcatchment 77S: 3238 Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)2 1 0 MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Runoff Area=0.950 ac Runoff Volume=0.106 af Runoff Depth=1.34" Tc=7.0 min CN=83 2.15 cfs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 176HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 78S: 3243 Runoff = 2.06 cfs @ 12.10 hrs, Volume= 0.102 af, Depth= 1.95" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Area (ac) CN Description * 0.630 91 Weighted 0.630 91 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 7.0 Direct Entry, Subcatchment 78S: 3243 Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)2 1 0 MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Runoff Area=0.630 ac Runoff Volume=0.102 af Runoff Depth=1.95" Tc=7.0 min CN=91 2.06 cfs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 177HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 79S: 3245 Runoff = 8.27 cfs @ 12.09 hrs, Volume= 0.451 af, Depth= 2.64" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Area (ac) CN Description * 2.050 98 Weighted 2.050 98 100.00% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 7.0 Direct Entry, Subcatchment 79S: 3245 Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)9 8 7 6 5 4 3 2 1 0 MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Runoff Area=2.050 ac Runoff Volume=0.451 af Runoff Depth=2.64" Tc=7.0 min CN=98 8.27 cfs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 178HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 80S: 3250 Runoff = 1.10 cfs @ 12.10 hrs, Volume= 0.054 af, Depth= 1.87" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Area (ac) CN Description * 0.350 90 Weighted 0.350 90 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 7.0 Direct Entry, Subcatchment 80S: 3250 Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)1 0 MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Runoff Area=0.350 ac Runoff Volume=0.054 af Runoff Depth=1.87" Tc=7.0 min CN=90 1.10 cfs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 179HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 81S: 3343 Runoff = 5.57 cfs @ 12.27 hrs, Volume= 0.460 af, Depth= 0.93" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Area (ac) CN Description * 5.950 76 Weighted 5.950 76 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 19.0 Direct Entry, Subcatchment 81S: 3343 Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)6 5 4 3 2 1 0 MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Runoff Area=5.950 ac Runoff Volume=0.460 af Runoff Depth=0.93" Tc=19.0 min CN=76 5.57 cfs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 180HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 82S: 3345 Runoff = 2.51 cfs @ 12.10 hrs, Volume= 0.128 af, Depth= 1.04" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Area (ac) CN Description * 1.480 78 Weighted 1.480 78 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 7.0 Direct Entry, Subcatchment 82S: 3345 Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)2 1 0 MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Runoff Area=1.480 ac Runoff Volume=0.128 af Runoff Depth=1.04" Tc=7.0 min CN=78 2.51 cfs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 181HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 83S: 3348 Runoff = 1.93 cfs @ 12.10 hrs, Volume= 0.095 af, Depth= 1.63" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Area (ac) CN Description * 0.700 87 Weighted 0.700 87 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 7.0 Direct Entry, Subcatchment 83S: 3348 Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)2 1 0 MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Runoff Area=0.700 ac Runoff Volume=0.095 af Runoff Depth=1.63" Tc=7.0 min CN=87 1.93 cfs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 182HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 84S: SE12 Runoff = 3.13 cfs @ 12.16 hrs, Volume= 0.192 af, Depth= 1.09" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Area (ac) CN Description * 2.100 79 Weighted 2.100 79 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 11.0 Direct Entry, Subcatchment 84S: SE12 Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)3 2 1 0 MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Runoff Area=2.100 ac Runoff Volume=0.192 af Runoff Depth=1.09" Tc=11.0 min CN=79 3.13 cfs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 183HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 85S: 1S Runoff = 2.68 cfs @ 12.24 hrs, Volume= 0.227 af, Depth= 0.60" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Area (ac) CN Description * 4.530 69 Weighted 4.530 69 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 15.0 Direct Entry, Subcatchment 85S: 1S Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)2 1 0 MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Runoff Area=4.530 ac Runoff Volume=0.227 af Runoff Depth=0.60" Tc=15.0 min CN=69 2.68 cfs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 184HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 86S: 2S Runoff = 2.66 cfs @ 12.39 hrs, Volume= 0.291 af, Depth= 0.60" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Area (ac) CN Description * 5.800 69 Weighted 5.800 69 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 25.0 Direct Entry, Subcatchment 86S: 2S Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)2 1 0 MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Runoff Area=5.800 ac Runoff Volume=0.291 af Runoff Depth=0.60" Tc=25.0 min CN=69 2.66 cfs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 185HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 87S: M9 Runoff = 16.15 cfs @ 12.41 hrs, Volume= 1.674 af, Depth= 0.93" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Area (ac) CN Description * 21.638 76 Weighted 21.638 76 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 29.0 Direct Entry, Subcatchment 87S: M9 Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87" Runoff Area=21.638 ac Runoff Volume=1.674 af Runoff Depth=0.93" Tc=29.0 min CN=76 16.15 cfs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 186HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Reach 40R: South Drainage [40] Hint: Not Described (Outflow=Inflow) Inflow Area = 51.070 ac, 48.50% Impervious, Inflow Depth = 0.62" for 2y 24hr event Inflow = 11.37 cfs @ 12.29 hrs, Volume= 2.641 af Outflow = 11.37 cfs @ 12.29 hrs, Volume= 2.641 af, Atten= 0%, Lag= 0.0 min Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Reach 40R: South Drainage Inflow Outflow Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)12 11 10 9 8 7 6 5 4 3 2 1 0 Inflow Area=51.070 ac 11.37 cfs 11.37 cfs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 187HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Reach 42.1R: South [40] Hint: Not Described (Outflow=Inflow) Inflow Area = 9.843 ac, 71.43% Impervious, Inflow Depth = 0.87" for 2y 24hr event Inflow = 6.22 cfs @ 12.27 hrs, Volume= 0.714 af Outflow = 6.22 cfs @ 12.27 hrs, Volume= 0.714 af, Atten= 0%, Lag= 0.0 min Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Reach 42.1R: South Inflow Outflow Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)6 5 4 3 2 1 0 Inflow Area=9.843 ac 6.22 cfs 6.22 cfs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 188HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Reach 42.2R: Southeast [40] Hint: Not Described (Outflow=Inflow) Inflow Area = 11.515 ac, 75.54% Impervious, Inflow Depth = 0.78" for 2y 24hr event Inflow = 1.94 cfs @ 13.04 hrs, Volume= 0.749 af Outflow = 1.94 cfs @ 13.04 hrs, Volume= 0.749 af, Atten= 0%, Lag= 0.0 min Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Reach 42.2R: Southeast Inflow Outflow Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)2 1 0 Inflow Area=11.515 ac 1.94 cfs 1.94 cfs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 189HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Reach 44R: Wetland 4 Channel [40] Hint: Not Described (Outflow=Inflow) Inflow Area = 26.490 ac, 34.12% Impervious, Inflow Depth = 0.51" for 2y 24hr event Inflow = 4.03 cfs @ 12.28 hrs, Volume= 1.134 af Outflow = 4.03 cfs @ 12.28 hrs, Volume= 1.134 af, Atten= 0%, Lag= 0.0 min Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Reach 44R: Wetland 4 Channel Inflow Outflow Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)4 3 2 1 0 Inflow Area=26.490 ac 4.03 cfs 4.03 cfs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 190HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Reach 48R: Development to Wetland 4 [40] Hint: Not Described (Outflow=Inflow) Inflow Area = 14.497 ac, 62.34% Impervious, Inflow Depth = 0.81" for 2y 24hr event Inflow = 3.82 cfs @ 12.24 hrs, Volume= 0.973 af Outflow = 3.82 cfs @ 12.24 hrs, Volume= 0.973 af, Atten= 0%, Lag= 0.0 min Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Reach 48R: Development to Wetland 4 Inflow Outflow Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)4 3 2 1 0 Inflow Area=14.497 ac 3.82 cfs 3.82 cfs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 191HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Reach 72R: N68 [52] Hint: Inlet/Outlet conditions not evaluated Inflow Area = 4.190 ac, 56.32% Impervious, Inflow Depth = 2.37" for 2y 24hr event Inflow = 14.88 cfs @ 12.10 hrs, Volume= 0.828 af Outflow = 14.88 cfs @ 12.10 hrs, Volume= 0.828 af, Atten= 0%, Lag= 0.1 min Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Max. Velocity= 7.29 fps, Min. Travel Time= 0.1 min Avg. Velocity = 2.08 fps, Avg. Travel Time= 0.5 min Peak Storage= 128 cf @ 12.10 hrs Average Depth at Peak Storage= 1.24' Bank-Full Depth= 2.00' Flow Area= 3.1 sf, Capacity= 21.17 cfs 24.0" Round Pipe n= 0.012 Length= 63.0' Slope= 0.0075 '/' Inlet Invert= 872.00', Outlet Invert= 871.53' Reach 72R: N68 Inflow Outflow Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 Inflow Area=4.190 ac Avg. Flow Depth=1.24' Max Vel=7.29 fps 24.0" Round Pipe n=0.012 L=63.0' S=0.0075 '/' Capacity=21.17 cfs 14.88 cfs 14.88 cfs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 192HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Pond 40.1P: South East Inflow Area = 3.753 ac, 81.66% Impervious, Inflow Depth = 2.37" for 2y 24hr event Inflow = 11.92 cfs @ 12.13 hrs, Volume= 0.740 af Outflow = 0.78 cfs @ 13.20 hrs, Volume= 0.740 af, Atten= 93%, Lag= 63.8 min Discarded = 0.07 cfs @ 6.46 hrs, Volume= 0.448 af Primary = 0.71 cfs @ 13.20 hrs, Volume= 0.292 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 895.01' @ 13.20 hrs Surf.Area= 51,048 sf Storage= 20,705 cf Plug-Flow detention time= 1,169.7 min calculated for 0.740 af (100% of inflow) Center-of-Mass det. time= 1,169.8 min ( 1,937.2 - 767.4 ) Volume Invert Avail.Storage Storage Description #1 893.70' 34,978 cf Custom Stage Data (Prismatic) Listed below (Recalc) 117,410 cf Overall - 818 cf Embedded = 116,593 cf x 30.0% Voids #2 896.00' 40,511 cf Custom Stage Data (Prismatic) Listed below (Recalc) 102,096 cf Overall - 818 cf Embedded = 101,278 cf x 40.0% Voids #3 893.70' 818 cf 8.0" Round Pipe Storage Inside #1 L= 2,343.0' #4 896.00' 818 cf 8.0" Round Pipe Storage Inside #2 L= 2,343.0' 77,125 cf Total Available Storage Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 893.70 51,048 0 0 896.00 51,048 117,410 117,410 Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 896.00 51,048 0 0 898.00 51,048 102,096 102,096 Device Routing Invert Outlet Devices #1 Primary 893.70'12.0" Round Culvert L= 260.0' RCP, sq.cut end projecting, Ke= 0.500 Inlet / Outlet Invert= 893.70' / 891.88' S= 0.0070 '/' Cc= 0.900 n= 0.011 Concrete pipe, straight & clean, Flow Area= 0.79 sf #2 Device 1 894.50'8.0" Vert. Orifice/Grate C= 0.600 #3 Device 1 896.67'12.0" Vert. Orifice/Grate C= 0.600 #4 Discarded 893.70'0.060 in/hr Exfiltration over Surface area Phase-In= 0.01' Discarded OutFlow Max=0.07 cfs @ 6.46 hrs HW=893.71' (Free Discharge) 4=Exfiltration (Exfiltration Controls 0.07 cfs) Primary OutFlow Max=0.71 cfs @ 13.20 hrs HW=895.01' TW=0.00' (Dynamic Tailwater) 1=Culvert (Passes 0.71 cfs of 3.41 cfs potential flow) 2=Orifice/Grate (Orifice Controls 0.71 cfs @ 2.44 fps) 3=Orifice/Grate ( Controls 0.00 cfs) MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 193HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Pond 40.1P: South East Inflow Outflow Discarded Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)13 12 11 10 9 8 7 6 5 4 3 2 1 0 Inflow Area=3.753 ac Peak Elev=895.01' Storage=20,705 cf 11.92 cfs 0.78 cfs 0.07 cfs0.71 cfs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 194HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Pond 40.2P: South Central Inflow Area = 4.604 ac, 76.19% Impervious, Inflow Depth = 2.29" for 2y 24hr event Inflow = 14.15 cfs @ 12.13 hrs, Volume= 0.877 af Outflow = 0.22 cfs @ 18.07 hrs, Volume= 0.877 af, Atten= 98%, Lag= 356.4 min Discarded = 0.13 cfs @ 7.80 hrs, Volume= 0.810 af Primary = 0.09 cfs @ 18.07 hrs, Volume= 0.067 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 895.96' @ 18.07 hrs Surf.Area= 94,313 sf Storage= 28,248 cf Plug-Flow detention time= 1,691.6 min calculated for 0.877 af (100% of inflow) Center-of-Mass det. time= 1,691.6 min ( 2,461.3 - 769.7 ) Volume Invert Avail.Storage Storage Description #1 895.00' 64,623 cf Custom Stage Data (Prismatic) Listed below (Recalc) 216,920 cf Overall - 1,511 cf Embedded = 215,409 cf x 30.0% Voids #2 897.30' 74,846 cf Custom Stage Data (Prismatic) Listed below (Recalc) 188,626 cf Overall - 1,511 cf Embedded = 187,115 cf x 40.0% Voids #3 895.00' 1,511 cf 8.0" Round Pipe Storage Inside #1 L= 4,328.0' #4 897.30' 1,511 cf 8.0" Round Pipe Storage Inside #2 L= 4,328.0' 142,490 cf Total Available Storage Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 895.00 94,313 0 0 897.30 94,313 216,920 216,920 Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 897.30 94,313 0 0 899.30 94,313 188,626 188,626 Device Routing Invert Outlet Devices #1 Primary 895.00'12.0" Round Culvert L= 250.0' RCP, sq.cut end projecting, Ke= 0.500 Inlet / Outlet Invert= 895.00' / 893.25' S= 0.0070 '/' Cc= 0.900 n= 0.011 Concrete pipe, straight & clean, Flow Area= 0.79 sf #2 Device 1 895.80'8.0" Vert. Orifice/Grate C= 0.600 #3 Device 1 897.97'8.0" Vert. Orifice/Grate C= 0.600 #4 Discarded 895.00'0.060 in/hr Exfiltration over Surface area Phase-In= 0.01' Discarded OutFlow Max=0.13 cfs @ 7.80 hrs HW=895.01' (Free Discharge) 4=Exfiltration (Exfiltration Controls 0.13 cfs) Primary OutFlow Max=0.09 cfs @ 18.07 hrs HW=895.96' TW=0.00' (Dynamic Tailwater) 1=Culvert (Passes 0.09 cfs of 2.59 cfs potential flow) 2=Orifice/Grate (Orifice Controls 0.09 cfs @ 1.37 fps) 3=Orifice/Grate ( Controls 0.00 cfs) MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 195HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Pond 40.2P: South Central Inflow Outflow Discarded Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 Inflow Area=4.604 ac Peak Elev=895.96' Storage=28,248 cf 14.15 cfs 0.22 cfs 0.13 cfs 0.09 cfs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 196HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Pond 40.3P: South Inflow Area = 5.237 ac, 69.55% Impervious, Inflow Depth = 2.19" for 2y 24hr event Inflow = 15.44 cfs @ 12.13 hrs, Volume= 0.954 af Outflow = 1.00 cfs @ 13.22 hrs, Volume= 0.954 af, Atten= 94%, Lag= 65.0 min Discarded = 0.08 cfs @ 6.45 hrs, Volume= 0.538 af Primary = 0.91 cfs @ 13.22 hrs, Volume= 0.417 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 898.92' @ 13.22 hrs Surf.Area= 60,232 sf Storage= 26,423 cf Plug-Flow detention time= 1,124.6 min calculated for 0.954 af (100% of inflow) Center-of-Mass det. time= 1,124.6 min ( 1,897.3 - 772.7 ) Volume Invert Avail.Storage Storage Description #1 897.50' 41,271 cf Custom Stage Data (Prismatic) Listed below (Recalc) 138,534 cf Overall - 965 cf Embedded = 137,569 cf x 30.0% Voids #2 899.80' 47,800 cf Custom Stage Data (Prismatic) Listed below (Recalc) 120,464 cf Overall - 965 cf Embedded = 119,499 cf x 40.0% Voids #3 897.50' 965 cf 8.0" Round Pipe Storage Inside #1 L= 2,764.0' #4 899.80' 965 cf 8.0" Round Pipe Storage Inside #2 L= 2,764.0' 91,000 cf Total Available Storage Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 897.50 60,232 0 0 899.80 60,232 138,534 138,534 Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 899.80 60,232 0 0 901.80 60,232 120,464 120,464 Device Routing Invert Outlet Devices #1 Primary 897.50'12.0" Round Culvert L= 175.0' RCP, sq.cut end projecting, Ke= 0.500 Inlet / Outlet Invert= 897.50' / 896.27' S= 0.0070 '/' Cc= 0.900 n= 0.011 Concrete pipe, straight & clean, Flow Area= 0.79 sf #2 Device 1 898.30'8.0" Vert. Orifice/Grate C= 0.600 #3 Device 1 900.47'8.0" Vert. Orifice/Grate C= 0.600 #4 Discarded 897.50'0.060 in/hr Exfiltration over Surface area Phase-In= 0.01' Discarded OutFlow Max=0.08 cfs @ 6.45 hrs HW=897.51' (Free Discharge) 4=Exfiltration (Exfiltration Controls 0.08 cfs) Primary OutFlow Max=0.91 cfs @ 13.22 hrs HW=898.92' TW=0.00' (Dynamic Tailwater) 1=Culvert (Passes 0.91 cfs of 3.48 cfs potential flow) 2=Orifice/Grate (Orifice Controls 0.91 cfs @ 2.69 fps) 3=Orifice/Grate ( Controls 0.00 cfs) MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 197HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Pond 40.3P: South Inflow Outflow Discarded Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 Inflow Area=5.237 ac Peak Elev=898.92' Storage=26,423 cf 15.44 cfs 1.00 cfs 0.08 cfs0.91 cfs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 198HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Pond 41.1P: South East Inflow Area = 1.607 ac, 85.30% Impervious, Inflow Depth = 2.42" for 2y 24hr event Inflow = 5.21 cfs @ 12.13 hrs, Volume= 0.324 af Outflow = 0.06 cfs @ 9.18 hrs, Volume= 0.324 af, Atten= 99%, Lag= 0.0 min Discarded = 0.06 cfs @ 9.18 hrs, Volume= 0.324 af Primary = 0.00 cfs @ 0.00 hrs, Volume= 0.000 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 888.74' @ 18.14 hrs Surf.Area= 45,024 sf Storage= 10,444 cf Plug-Flow detention time= 1,474.8 min calculated for 0.324 af (100% of inflow) Center-of-Mass det. time= 1,474.8 min ( 2,240.8 - 766.0 ) Volume Invert Avail.Storage Storage Description #1 888.00' 30,850 cf Custom Stage Data (Prismatic) Listed below (Recalc) 103,555 cf Overall - 721 cf Embedded = 102,834 cf x 30.0% Voids #2 890.30' 35,731 cf Custom Stage Data (Prismatic) Listed below (Recalc) 90,048 cf Overall - 721 cf Embedded = 89,327 cf x 40.0% Voids #3 888.00' 721 cf 8.0" Round Pipe Storage Inside #1 L= 2,066.0' #4 890.30' 721 cf 8.0" Round Pipe Storage Inside #2 L= 2,066.0' 68,023 cf Total Available Storage Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 888.00 45,024 0 0 890.30 45,024 103,555 103,555 Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 890.30 45,024 0 0 892.30 45,024 90,048 90,048 Device Routing Invert Outlet Devices #1 Primary 888.00'12.0" Round Culvert L= 70.0' RCP, sq.cut end projecting, Ke= 0.500 Inlet / Outlet Invert= 888.00' / 887.51' S= 0.0070 '/' Cc= 0.900 n= 0.011 Concrete pipe, straight & clean, Flow Area= 0.79 sf #2 Device 1 888.80'8.0" Vert. Orifice/Grate C= 0.600 #3 Device 1 890.97'8.0" Vert. Orifice/Grate C= 0.600 #4 Discarded 888.00'0.060 in/hr Exfiltration over Surface area Phase-In= 0.01' Discarded OutFlow Max=0.06 cfs @ 9.18 hrs HW=888.01' (Free Discharge) 4=Exfiltration (Exfiltration Controls 0.06 cfs) Primary OutFlow Max=0.00 cfs @ 0.00 hrs HW=888.00' TW=0.00' (Dynamic Tailwater) 1=Culvert ( Controls 0.00 cfs) 2=Orifice/Grate ( Controls 0.00 cfs) 3=Orifice/Grate ( Controls 0.00 cfs) MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 199HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Pond 41.1P: South East Inflow Outflow Discarded Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)5 4 3 2 1 0 Inflow Area=1.607 ac Peak Elev=888.74' Storage=10,444 cf 5.21 cfs 0.06 cfs 0.06 cfs 0.00 cfs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 200HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Pond 41.2P: South Central Inflow Area = 3.591 ac, 80.17% Impervious, Inflow Depth = 2.34" for 2y 24hr event Inflow = 11.30 cfs @ 12.13 hrs, Volume= 0.702 af Outflow = 5.53 cfs @ 12.29 hrs, Volume= 0.702 af, Atten= 51%, Lag= 9.6 min Discarded = 0.02 cfs @ 12.27 hrs, Volume= 0.146 af Primary = 5.51 cfs @ 12.29 hrs, Volume= 0.555 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 883.79' @ 12.29 hrs Surf.Area= 16,787 sf Storage= 11,745 cf Plug-Flow detention time= 400.6 min calculated for 0.702 af (100% of inflow) Center-of-Mass det. time= 400.6 min ( 1,168.6 - 768.0 ) Volume Invert Avail.Storage Storage Description #1 881.50' 11,502 cf Custom Stage Data (Prismatic) Listed below (Recalc) 38,610 cf Overall - 269 cf Embedded = 38,341 cf x 30.0% Voids #2 883.80' 13,322 cf Custom Stage Data (Prismatic) Listed below (Recalc) 33,574 cf Overall - 269 cf Embedded = 33,305 cf x 40.0% Voids #3 881.50' 269 cf 8.0" Round Pipe Storage Inside #1 L= 770.0' #4 883.80' 269 cf 8.0" Round Pipe Storage Inside #2 L= 770.0' 25,362 cf Total Available Storage Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 881.50 16,787 0 0 883.80 16,787 38,610 38,610 Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 883.80 16,787 0 0 885.80 16,787 33,574 33,574 Device Routing Invert Outlet Devices #1 Primary 881.50'18.0" Round Culvert L= 22.0' RCP, sq.cut end projecting, Ke= 0.500 Inlet / Outlet Invert= 881.50' / 881.28' S= 0.0100 '/' Cc= 0.900 n= 0.011 Concrete pipe, straight & clean, Flow Area= 1.77 sf #2 Device 1 882.30'15.0" Vert. Orifice/Grate C= 0.600 #3 Device 1 884.47'18.0" Vert. Orifice/Grate C= 0.600 #4 Discarded 881.50'0.060 in/hr Exfiltration over Surface area Phase-In= 0.01' Discarded OutFlow Max=0.02 cfs @ 12.27 hrs HW=883.79' (Free Discharge) 4=Exfiltration (Exfiltration Controls 0.02 cfs) Primary OutFlow Max=5.51 cfs @ 12.29 hrs HW=883.79' TW=0.00' (Dynamic Tailwater) 1=Culvert (Passes 5.51 cfs of 10.58 cfs potential flow) 2=Orifice/Grate (Orifice Controls 5.51 cfs @ 4.49 fps) 3=Orifice/Grate ( Controls 0.00 cfs) MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 201HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Pond 41.2P: South Central Inflow Outflow Discarded Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)12 11 10 9 8 7 6 5 4 3 2 1 0 Inflow Area=3.591 ac Peak Elev=883.79' Storage=11,745 cf 11.30 cfs 5.53 cfs 0.02 cfs 5.51 cfs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 202HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Pond 41.3P: South West Inflow Area = 0.686 ac, 93.81% Impervious, Inflow Depth = 2.55" for 2y 24hr event Inflow = 2.33 cfs @ 12.13 hrs, Volume= 0.146 af Outflow = 0.03 cfs @ 9.22 hrs, Volume= 0.146 af, Atten= 99%, Lag= 0.0 min Discarded = 0.03 cfs @ 9.22 hrs, Volume= 0.146 af Primary = 0.00 cfs @ 0.00 hrs, Volume= 0.000 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 890.41' @ 18.11 hrs Surf.Area= 22,024 sf Storage= 4,610 cf Plug-Flow detention time= 1,332.0 min calculated for 0.146 af (100% of inflow) Center-of-Mass det. time= 1,332.0 min ( 2,094.9 - 762.9 ) Volume Invert Avail.Storage Storage Description #1 889.75' 15,091 cf Custom Stage Data (Prismatic) Listed below (Recalc) 50,655 cf Overall - 353 cf Embedded = 50,303 cf x 30.0% Voids #2 892.05' 17,478 cf Custom Stage Data (Prismatic) Listed below (Recalc) 44,048 cf Overall - 353 cf Embedded = 43,695 cf x 40.0% Voids #3 889.75' 353 cf 8.0" Round Pipe Storage Inside #1 L= 1,010.0' #4 892.05' 353 cf 8.0" Round Pipe Storage Inside #2 L= 1,010.0' 33,274 cf Total Available Storage Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 889.75 22,024 0 0 892.05 22,024 50,655 50,655 Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 892.05 22,024 0 0 894.05 22,024 44,048 44,048 Device Routing Invert Outlet Devices #1 Primary 889.75'12.0" Round Culvert L= 45.0' RCP, sq.cut end projecting, Ke= 0.500 Inlet / Outlet Invert= 889.75' / 889.43' S= 0.0071 '/' Cc= 0.900 n= 0.011 Concrete pipe, straight & clean, Flow Area= 0.79 sf #2 Device 1 890.55'8.0" Vert. Orifice/Grate C= 0.600 #3 Device 1 892.72'8.0" Vert. Orifice/Grate C= 0.600 #4 Discarded 889.75'0.060 in/hr Exfiltration over Surface area Phase-In= 0.01' Discarded OutFlow Max=0.03 cfs @ 9.22 hrs HW=889.76' (Free Discharge) 4=Exfiltration (Exfiltration Controls 0.03 cfs) Primary OutFlow Max=0.00 cfs @ 0.00 hrs HW=889.75' TW=0.00' (Dynamic Tailwater) 1=Culvert ( Controls 0.00 cfs) 2=Orifice/Grate ( Controls 0.00 cfs) 3=Orifice/Grate ( Controls 0.00 cfs) MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 203HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Pond 41.3P: South West Inflow Outflow Discarded Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)2 1 0 Inflow Area=0.686 ac Peak Elev=890.41' Storage=4,610 cf 2.33 cfs 0.03 cfs 0.03 cfs 0.00 cfs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 204HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Pond 44P: Wetland 4 Inflow Area = 24.628 ac, 36.70% Impervious, Inflow Depth = 0.54" for 2y 24hr event Inflow = 4.01 cfs @ 12.26 hrs, Volume= 1.110 af Outflow = 4.00 cfs @ 12.27 hrs, Volume= 1.109 af, Atten= 0%, Lag= 0.9 min Primary = 4.00 cfs @ 12.27 hrs, Volume= 1.109 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 884.33' @ 12.27 hrs Surf.Area= 1,593 sf Storage= 401 cf Plug-Flow detention time= 4.5 min calculated for 1.109 af (100% of inflow) Center-of-Mass det. time= 3.9 min ( 982.9 - 979.0 ) Volume Invert Avail.Storage Storage Description #1 884.00' 37,633 cf Custom Stage Data (Prismatic) Listed below (Recalc) Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 884.00 870 0 0 884.50 1,980 713 713 885.00 3,500 1,370 2,083 886.00 7,800 5,650 7,733 887.00 14,000 10,900 18,633 888.00 24,000 19,000 37,633 Device Routing Invert Outlet Devices #1 Primary 884.03'Asymmetrical Weir, C= 3.27 Offset (feet) 0.00 51.00 133.60 176.00 217.30 239.00 Elev. (feet) 889.78 886.05 884.03 885.84 889.00 889.78 Primary OutFlow Max=4.00 cfs @ 12.27 hrs HW=884.33' TW=0.00' (Dynamic Tailwater) 1=Asymmetrical Weir (Weir Controls 4.00 cfs @ 0.71 fps) MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 205HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Pond 44P: Wetland 4 Inflow Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)4 3 2 1 0 Inflow Area=24.628 ac Peak Elev=884.33' Storage=401 cf 4.01 cfs 4.00 cfs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 206HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Pond 46P: Triangle Basin Inflow Area = 2.229 ac, 19.60% Impervious, Inflow Depth = 1.44" for 2y 24hr event Inflow = 4.04 cfs @ 12.17 hrs, Volume= 0.268 af Outflow = 3.67 cfs @ 12.22 hrs, Volume= 0.268 af, Atten= 9%, Lag= 3.1 min Discarded = 0.00 cfs @ 2.98 hrs, Volume= 0.013 af Primary = 3.67 cfs @ 12.22 hrs, Volume= 0.255 af Secondary = 0.00 cfs @ 0.00 hrs, Volume= 0.000 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 886.61' @ 12.22 hrs Surf.Area= 1,586 sf Storage= 1,083 cf Plug-Flow detention time= 93.7 min calculated for 0.268 af (100% of inflow) Center-of-Mass det. time= 93.7 min ( 904.6 - 810.9 ) Volume Invert Avail.Storage Storage Description #1 884.37' 1,087 cf Sand section (Prismatic) Listed below (Recalc) 3,648 cf Overall - 24 cf Embedded = 3,623 cf x 30.0% Voids #2 884.37' 24 cf 8.0" Round Pipe Storage Inside #1 L= 70.0' #3 886.67' 159 cf Topsoil (Prismatic) Listed below (Recalc) 793 cf Overall x 20.0% Voids #4 887.17' 14,801 cf Open pond (Prismatic) Listed below (Recalc) 16,071 cf Total Available Storage Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 884.37 1,586 0 0 886.67 1,586 3,648 3,648 Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 886.67 1,586 0 0 887.17 1,586 793 793 Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 887.17 1,586 0 0 890.90 6,350 14,801 14,801 Device Routing Invert Outlet Devices #1 Primary 884.37'18.0" Round Culvert L= 125.0' RCP, sq.cut end projecting, Ke= 0.500 Inlet / Outlet Invert= 884.37' / 884.00' S= 0.0030 '/' Cc= 0.900 n= 0.011 Concrete pipe, straight & clean, Flow Area= 1.77 sf #2 Device 1 885.17'12.0" Vert. Orifice/Grate C= 0.600 #3 Device 1 887.41'12.0" Vert. Orifice/Grate C= 0.600 #4 Secondary 890.75'20.0' long x 5.0' breadth Broad-Crested Rectangular Weir Head (feet) 0.20 0.40 0.60 0.80 1.00 1.20 1.40 1.60 1.80 2.00 2.50 3.00 3.50 4.00 4.50 5.00 5.50 Coef. (English) 2.34 2.50 2.70 2.68 2.68 2.66 2.65 2.65 2.65 MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 207HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC 2.65 2.67 2.66 2.68 2.70 2.74 2.79 2.88 #5 Discarded 884.37'0.060 in/hr Exfiltration over Surface area Phase-In= 0.01' Discarded OutFlow Max=0.00 cfs @ 2.98 hrs HW=884.38' (Free Discharge) 5=Exfiltration (Exfiltration Controls 0.00 cfs) Primary OutFlow Max=3.66 cfs @ 12.22 hrs HW=886.61' TW=0.00' (Dynamic Tailwater) 1=Culvert (Passes 3.66 cfs of 8.43 cfs potential flow) 2=Orifice/Grate (Orifice Controls 3.66 cfs @ 4.66 fps) 3=Orifice/Grate ( Controls 0.00 cfs) Secondary OutFlow Max=0.00 cfs @ 0.00 hrs HW=884.37' TW=0.00' (Dynamic Tailwater) 4=Broad-Crested Rectangular Weir ( Controls 0.00 cfs) Pond 46P: Triangle Basin Inflow Outflow Discarded Primary Secondary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)4 3 2 1 0 Inflow Area=2.229 ac Peak Elev=886.61' Storage=1,083 cf 4.04 cfs 3.67 cfs 0.00 cfs 3.67 cfs 0.00 cfs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 208HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Pond 47P: Bluff Creek - West Basin Inflow Area = 7.031 ac, 70.52% Impervious, Inflow Depth = 2.15" for 2y 24hr event Inflow = 20.85 cfs @ 12.10 hrs, Volume= 1.261 af Outflow = 0.57 cfs @ 15.09 hrs, Volume= 1.261 af, Atten= 97%, Lag= 179.5 min Discarded = 0.15 cfs @ 8.34 hrs, Volume= 0.959 af Primary = 0.42 cfs @ 15.09 hrs, Volume= 0.302 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 909.38' @ 15.09 hrs Surf.Area= 107,300 sf Storage= 39,068 cf Plug-Flow detention time= 1,540.1 min calculated for 1.261 af (100% of inflow) Center-of-Mass det. time= 1,540.1 min ( 2,320.2 - 780.2 ) Volume Invert Avail.Storage Storage Description #1 908.20' 73,521 cf Custom Stage Data (Prismatic) Listed below (Recalc) 246,790 cf Overall - 1,719 cf Embedded = 245,071 cf x 30.0% Voids #2 910.50' 85,152 cf Custom Stage Data (Prismatic) Listed below (Recalc) 214,600 cf Overall - 1,719 cf Embedded = 212,881 cf x 40.0% Voids #3 908.20' 1,719 cf 8.0" Round Pipe Storage Inside #1 L= 4,925.0' #4 910.50' 1,719 cf 8.0" Round Pipe Storage Inside #2 L= 4,925.0' 162,112 cf Total Available Storage Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 908.20 107,300 0 0 910.50 107,300 246,790 246,790 Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 910.50 107,300 0 0 912.50 107,300 214,600 214,600 Device Routing Invert Outlet Devices #1 Primary 908.20'12.0" Round Culvert L= 307.0' RCP, square edge headwall, Ke= 0.500 Inlet / Outlet Invert= 908.20' / 905.13' S= 0.0100 '/' Cc= 0.900 n= 0.011 Concrete pipe, straight & clean, Flow Area= 0.79 sf #2 Device 1 909.00'8.0" Vert. Orifice/Grate C= 0.600 #3 Device 1 911.24'8.0" Vert. Orifice/Grate C= 0.600 #4 Discarded 908.20'0.060 in/hr Exfiltration over Surface area Phase-In= 0.01' Discarded OutFlow Max=0.15 cfs @ 8.34 hrs HW=908.21' (Free Discharge) 4=Exfiltration (Exfiltration Controls 0.15 cfs) Primary OutFlow Max=0.42 cfs @ 15.09 hrs HW=909.38' TW=0.00' (Dynamic Tailwater) 1=Culvert (Passes 0.42 cfs of 3.11 cfs potential flow) 2=Orifice/Grate (Orifice Controls 0.42 cfs @ 2.09 fps) 3=Orifice/Grate ( Controls 0.00 cfs) MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 209HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Pond 47P: Bluff Creek - West Basin Inflow Outflow Discarded Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 Inflow Area=7.031 ac Peak Elev=909.38' Storage=39,068 cf 20.85 cfs 0.57 cfs 0.15 cfs 0.42 cfs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 210HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Pond 48P: Bluff Creek - East Basin Inflow Area = 3.441 ac, 81.34% Impervious, Inflow Depth = 2.36" for 2y 24hr event Inflow = 13.85 cfs @ 12.07 hrs, Volume= 0.677 af Outflow = 0.56 cfs @ 13.55 hrs, Volume= 0.677 af, Atten= 96%, Lag= 88.5 min Discarded = 0.07 cfs @ 6.53 hrs, Volume= 0.454 af Primary = 0.49 cfs @ 13.55 hrs, Volume= 0.223 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 896.56' @ 13.55 hrs Surf.Area= 52,085 sf Storage= 19,491 cf Plug-Flow detention time= 1,276.2 min calculated for 0.677 af (100% of inflow) Center-of-Mass det. time= 1,276.3 min ( 2,039.2 - 762.9 ) Volume Invert Avail.Storage Storage Description #1 895.35' 35,688 cf Custom Stage Data (Prismatic) Listed below (Recalc) 119,795 cf Overall - 834 cf Embedded = 118,961 cf x 30.0% Voids #2 897.65' 41,334 cf Custom Stage Data (Prismatic) Listed below (Recalc) 104,170 cf Overall - 834 cf Embedded = 103,336 cf x 40.0% Voids #3 895.35' 834 cf 8.0" Round Pipe Storage Inside #1 L= 2,390.0' #4 897.65' 834 cf 8.0" Round Pipe Storage Inside #2 L= 2,390.0' 78,691 cf Total Available Storage Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 895.35 52,085 0 0 897.65 52,085 119,795 119,795 Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 897.65 52,085 0 0 899.65 52,085 104,170 104,170 Device Routing Invert Outlet Devices #1 Primary 895.35'12.0" Round Culvert L= 637.0' RCP, square edge headwall, Ke= 0.500 Inlet / Outlet Invert= 895.35' / 888.98' S= 0.0100 '/' Cc= 0.900 n= 0.011 Concrete pipe, straight & clean, Flow Area= 0.79 sf #2 Device 1 896.15'8.0" Vert. Orifice/Grate C= 0.600 #3 Device 1 898.39'8.0" Vert. Orifice/Grate C= 0.600 #4 Discarded 895.35'0.060 in/hr Exfiltration over Surface area Phase-In= 0.01' Discarded OutFlow Max=0.07 cfs @ 6.53 hrs HW=895.36' (Free Discharge) 4=Exfiltration (Exfiltration Controls 0.07 cfs) Primary OutFlow Max=0.49 cfs @ 13.55 hrs HW=896.56' TW=0.00' (Dynamic Tailwater) 1=Culvert (Passes 0.49 cfs of 3.19 cfs potential flow) 2=Orifice/Grate (Orifice Controls 0.49 cfs @ 2.18 fps) 3=Orifice/Grate ( Controls 0.00 cfs) MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 211HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Pond 48P: Bluff Creek - East Basin Inflow Outflow Discarded Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 Inflow Area=3.441 ac Peak Elev=896.56' Storage=19,491 cf 13.85 cfs 0.56 cfs 0.07 cfs0.49 cfs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 212HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Pond 48P(2): Bluff Creek - East Basin Inflow Area = 2.152 ac, 68.04% Impervious, Inflow Depth = 2.16" for 2y 24hr event Inflow = 6.28 cfs @ 12.13 hrs, Volume= 0.388 af Outflow = 0.72 cfs @ 12.71 hrs, Volume= 0.388 af, Atten= 88%, Lag= 34.8 min Discarded = 0.03 cfs @ 6.46 hrs, Volume= 0.208 af Primary = 0.69 cfs @ 12.71 hrs, Volume= 0.180 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 897.06' @ 12.71 hrs Surf.Area= 24,429 sf Storage= 9,848 cf Plug-Flow detention time= 990.0 min calculated for 0.388 af (100% of inflow) Center-of-Mass det. time= 990.1 min ( 1,763.5 - 773.4 ) Volume Invert Avail.Storage Storage Description #1 895.75' 16,739 cf Custom Stage Data (Prismatic) Listed below (Recalc) 56,187 cf Overall - 391 cf Embedded = 55,795 cf x 30.0% Voids #2 898.05' 19,387 cf Custom Stage Data (Prismatic) Listed below (Recalc) 48,858 cf Overall - 391 cf Embedded = 48,467 cf x 40.0% Voids #3 895.75' 391 cf 8.0" Round Pipe Storage Inside #1 L= 1,121.0' #4 898.05' 391 cf 8.0" Round Pipe Storage Inside #2 L= 1,121.0' 36,908 cf Total Available Storage Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 895.75 24,429 0 0 898.05 24,429 56,187 56,187 Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 898.05 24,429 0 0 900.05 24,429 48,858 48,858 Device Routing Invert Outlet Devices #1 Primary 895.75'8.0" Round Culvert L= 50.0' RCP, square edge headwall, Ke= 0.500 Inlet / Outlet Invert= 895.75' / 895.25' S= 0.0100 '/' Cc= 0.900 n= 0.011 Concrete pipe, straight & clean, Flow Area= 0.35 sf #2 Device 1 896.55'8.0" Vert. Orifice/Grate C= 0.600 #3 Device 1 898.79'8.0" Vert. Orifice/Grate C= 0.600 #4 Discarded 895.75'0.060 in/hr Exfiltration over Surface area Phase-In= 0.01' Discarded OutFlow Max=0.03 cfs @ 6.46 hrs HW=895.76' (Free Discharge) 4=Exfiltration (Exfiltration Controls 0.03 cfs) Primary OutFlow Max=0.69 cfs @ 12.71 hrs HW=897.06' TW=0.00' (Dynamic Tailwater) 1=Culvert (Passes 0.69 cfs of 1.61 cfs potential flow) 2=Orifice/Grate (Orifice Controls 0.69 cfs @ 2.42 fps) 3=Orifice/Grate ( Controls 0.00 cfs) MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 213HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Pond 48P(2): Bluff Creek - East Basin Inflow Outflow Discarded Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)7 6 5 4 3 2 1 0 Inflow Area=2.152 ac Peak Elev=897.06' Storage=9,848 cf 6.28 cfs 0.72 cfs 0.03 cfs 0.69 cfs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 214HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Pond 71P: Interlachen [61] Hint: Exceeded Reach 72R outlet invert by 0.19' @ 12.65 hrs Inflow Area = 30.860 ac, 27.80% Impervious, Inflow Depth = 1.64" for 2y 24hr event Inflow = 64.95 cfs @ 12.11 hrs, Volume= 4.207 af Outflow = 11.21 cfs @ 12.65 hrs, Volume= 4.197 af, Atten= 83%, Lag= 32.6 min Primary = 11.21 cfs @ 12.65 hrs, Volume= 4.197 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 871.72' @ 12.65 hrs Surf.Area= 55,983 sf Storage= 91,701 cf Plug-Flow detention time= 388.2 min calculated for 4.197 af (100% of inflow) Center-of-Mass det. time= 386.5 min ( 1,181.8 - 795.2 ) Volume Invert Avail.Storage Storage Description #1 870.00' 381,460 cf Custom Stage Data (Prismatic) Listed below (Recalc) Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 870.00 50,570 0 0 872.00 56,860 107,430 107,430 875.00 74,330 196,785 304,215 876.00 80,160 77,245 381,460 Device Routing Invert Outlet Devices #1 Primary 870.00'24.0" Round Culvert L= 33.0' RCP, square edge headwall, Ke= 0.500 Inlet / Outlet Invert= 870.00' / 869.67' S= 0.0100 '/' Cc= 0.900 n= 0.012, Flow Area= 3.14 sf #2 Device 1 866.61'24.0" Round Culvert L= 21.0' RCP, end-section conforming to fill, Ke= 0.500 Inlet / Outlet Invert= 866.50' / 866.61' S= -0.0052 '/' Cc= 0.900 n= 0.012, Flow Area= 3.14 sf Primary OutFlow Max=11.21 cfs @ 12.65 hrs HW=871.72' TW=869.81' (Dynamic Tailwater) 1=Culvert (Barrel Controls 11.21 cfs @ 5.23 fps) 2=Culvert (Passes 11.21 cfs of 19.85 cfs potential flow) MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 215HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Pond 71P: Interlachen Inflow Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)70 65 60 55 50 45 40 35 30 25 20 15 10 5 0 Inflow Area=30.860 ac Peak Elev=871.72' Storage=91,701 cf 64.95 cfs 11.21 cfs MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 216HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Pond 72P: South MNDOT M9 Wetland Inflow Area = 115.998 ac, 28.75% Impervious, Inflow Depth = 0.95" for 2y 24hr event Inflow = 43.02 cfs @ 12.40 hrs, Volume= 9.221 af Outflow = 2.09 cfs @ 24.06 hrs, Volume= 8.946 af, Atten= 95%, Lag= 700.0 min Primary = 2.09 cfs @ 24.06 hrs, Volume= 8.946 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 870.31' @ 24.06 hrs Surf.Area= 450,628 sf Storage= 299,243 cf Plug-Flow detention time= 2,871.6 min calculated for 8.945 af (97% of inflow) Center-of-Mass det. time= 2,773.6 min ( 3,804.7 - 1,031.1 ) Volume Invert Avail.Storage Storage Description #1 869.50' 2,891,990 cf Custom Stage Data (Prismatic) Listed below (Recalc) Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 869.50 214,970 0 0 870.00 433,070 162,010 162,010 871.00 489,600 461,335 623,345 872.00 532,650 511,125 1,134,470 875.00 639,030 1,757,520 2,891,990 Device Routing Invert Outlet Devices #1 Primary 869.00'18.0" Round Culvert L= 276.0' RCP, square edge headwall, Ke= 0.500 Inlet / Outlet Invert= 869.00' / 866.93' S= 0.0075 '/' Cc= 0.900 n= 0.013 Concrete pipe, straight & clean, Flow Area= 1.77 sf #2 Device 1 869.50'12.0" Vert. Orifice/Grate C= 0.600 #3 Device 2 869.36'18.0" Round Culvert L= 172.0' RCP, end-section conforming to fill, Ke= 0.500 Inlet / Outlet Invert= 868.50' / 869.36' S= -0.0050 '/' Cc= 0.900 n= 0.013 Concrete pipe, straight & clean, Flow Area= 1.77 sf Primary OutFlow Max=2.09 cfs @ 24.06 hrs HW=870.31' (Free Discharge) 1=Culvert (Passes 2.09 cfs of 6.38 cfs potential flow) 2=Orifice/Grate (Orifice Controls 2.09 cfs @ 3.07 fps) 3=Culvert (Passes 2.09 cfs of 3.92 cfs potential flow) MN-RPBCWD_v1_Atlas14_24-hr2y_S1 2y 24hr Rainfall=2.87"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 217HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Pond 72P: South MNDOT M9 Wetland Inflow Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)48 46 44 42 40 38 36 34 32 30 28 26 24 22 20 18 16 14 12 10 8 6 4 2 0 Inflow Area=115.998 ac Peak Elev=870.31' Storage=299,243 cf 43.02 cfs 2.09 cfs MN-Snowmelt_10d_100yr 10 day Snowmelt Rainfall=7.20", AMC=4Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 218HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Time span=0.00-360.00 hrs, dt=0.01 hrs, 36001 points Runoff by SCS TR-20 method, UH=SCS, Weighted-Q Reach routing by Dyn-Stor-Ind method - Pond routing by Dyn-Stor-Ind method Runoff Area=163,468 sf 81.66% Impervious Runoff Depth=6.96"Subcatchment 40.1S: South - East Tc=10.0 min AMC Adjusted CN=WQ Runoff=0.72 cfs 2.177 af Runoff Area=200,567 sf 76.19% Impervious Runoff Depth=6.96"Subcatchment 40.2S: South - Central Tc=10.0 min AMC Adjusted CN=WQ Runoff=0.88 cfs 2.671 af Runoff Area=228,145 sf 69.55% Impervious Runoff Depth=6.96"Subcatchment 40.3S: South - West Tc=10.0 min AMC Adjusted CN=WQ Runoff=1.00 cfs 3.038 af Runoff Area=69,984 sf 85.30% Impervious Runoff Depth=6.96"Subcatchment 41.1S: South - East Tc=10.0 min AMC Adjusted CN=WQ Runoff=0.31 cfs 0.932 af Runoff Area=156,419 sf 80.17% Impervious Runoff Depth=6.96"Subcatchment 41.2S: South - Central Tc=10.0 min AMC Adjusted CN=WQ Runoff=0.69 cfs 2.083 af Runoff Area=29,884 sf 93.81% Impervious Runoff Depth=6.96"Subcatchment 41.3S: South - west Tc=10.0 min AMC Adjusted CN=WQ Runoff=0.13 cfs 0.398 af Runoff Area=41,871 sf 0.00% Impervious Runoff Depth=6.96"Subcatchment 42.1S: South Tc=5.0 min AMC Adjusted CN=98 Runoff=0.18 cfs 0.558 af Runoff Area=24,525 sf 0.00% Impervious Runoff Depth=6.96"Subcatchment 42.2S: Southeast Tc=5.0 min AMC Adjusted CN=98 Runoff=0.11 cfs 0.327 af Runoff Area=3.222 ac 0.00% Impervious Runoff Depth=6.96"Subcatchment 43.1S: East Woods Flow Length=530' Tc=15.2 min AMC Adjusted CN=98 Runoff=0.61 cfs 1.869 af Runoff Area=1.862 ac 0.00% Impervious Runoff Depth=6.96"Subcatchment 43.2S: Northeast Woods Flow Length=623' Tc=19.5 min AMC Adjusted CN=98 Runoff=0.35 cfs 1.080 af Runoff Area=441,314 sf 0.00% Impervious Runoff Depth=6.96"Subcatchment 44S: North Woods Flow Length=599' Tc=16.5 min AMC Adjusted CN=98 Runoff=1.93 cfs 5.877 af Runoff Area=206,303 sf 65.51% Impervious Runoff Depth=6.96"Subcatchment 45S: Central - West Tc=10.0 min AMC Adjusted CN=WQ Runoff=0.90 cfs 2.747 af Runoff Area=97,082 sf 19.60% Impervious Runoff Depth=6.96"Subcatchment 46S: South Townhomes Flow Length=701' Tc=12.6 min AMC Adjusted CN=WQ Runoff=0.42 cfs 1.293 af Runoff Area=2.295 ac 80.87% Impervious Runoff Depth=6.96"Subcatchment 47S: Bluff Creek Blvd - West Tc=5.0 min AMC Adjusted CN=WQ Runoff=0.44 cfs 1.331 af Runoff Area=93,721 sf 68.04% Impervious Runoff Depth=6.96"Subcatchment 48.1S: Direct to 48P (2) Tc=10.0 min AMC Adjusted CN=WQ Runoff=0.41 cfs 1.248 af Runoff Area=3.441 ac 81.34% Impervious Runoff Depth=6.96"Subcatchment 48S: Bluff Creek Blvd - East Tc=5.0 min AMC Adjusted CN=WQ Runoff=0.66 cfs 1.996 af MN-Snowmelt_10d_100yr 10 day Snowmelt Rainfall=7.20", AMC=4Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 219HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Runoff Area=2.080 ac 0.00% Impervious Runoff Depth=6.96"Subcatchment 71-1S: Interlacn Subcatch 1 Tc=7.0 min AMC Adjusted CN=98 Runoff=0.40 cfs 1.207 af Runoff Area=1.160 ac 100.00% Impervious Runoff Depth=7.20"Subcatchment 71-2S: Interlacn Subcatch 2 Tc=7.0 min CN=100 Runoff=0.22 cfs 0.696 af Runoff Area=0.810 ac 0.00% Impervious Runoff Depth=6.96"Subcatchment 72S: 6_Temp Tc=9.0 min AMC Adjusted CN=98 Runoff=0.15 cfs 0.470 af Runoff Area=2.360 ac 100.00% Impervious Runoff Depth=6.96"Subcatchment 73S: N68 Tc=7.0 min CN=98 Runoff=0.45 cfs 1.369 af Runoff Area=1.020 ac 0.00% Impervious Runoff Depth=6.96"Subcatchment 74S: 5_Temp Tc=9.0 min AMC Adjusted CN=98 Runoff=0.19 cfs 0.592 af Runoff Area=3.010 ac 100.00% Impervious Runoff Depth=6.96"Subcatchment 75S: 3225 Tc=7.0 min CN=98 Runoff=0.58 cfs 1.746 af Runoff Area=8.310 ac 0.00% Impervious Runoff Depth=6.96"Subcatchment 76S: 3236 Tc=14.0 min AMC Adjusted CN=98 Runoff=1.58 cfs 4.820 af Runoff Area=0.950 ac 0.00% Impervious Runoff Depth=6.96"Subcatchment 77S: 3238 Tc=7.0 min AMC Adjusted CN=98 Runoff=0.18 cfs 0.551 af Runoff Area=0.630 ac 0.00% Impervious Runoff Depth=6.96"Subcatchment 78S: 3243 Tc=7.0 min AMC Adjusted CN=98 Runoff=0.12 cfs 0.365 af Runoff Area=2.050 ac 100.00% Impervious Runoff Depth=6.96"Subcatchment 79S: 3245 Tc=7.0 min CN=98 Runoff=0.39 cfs 1.189 af Runoff Area=0.350 ac 0.00% Impervious Runoff Depth=6.96"Subcatchment 80S: 3250 Tc=7.0 min AMC Adjusted CN=98 Runoff=0.07 cfs 0.203 af Runoff Area=5.950 ac 0.00% Impervious Runoff Depth=6.96"Subcatchment 81S: 3343 Tc=19.0 min AMC Adjusted CN=98 Runoff=1.13 cfs 3.451 af Runoff Area=1.480 ac 0.00% Impervious Runoff Depth=6.96"Subcatchment 82S: 3345 Tc=7.0 min AMC Adjusted CN=98 Runoff=0.28 cfs 0.858 af Runoff Area=0.700 ac 0.00% Impervious Runoff Depth=6.96"Subcatchment 83S: 3348 Tc=7.0 min AMC Adjusted CN=98 Runoff=0.13 cfs 0.406 af Runoff Area=2.100 ac 0.00% Impervious Runoff Depth=6.96"Subcatchment 84S: SE12 Tc=11.0 min AMC Adjusted CN=98 Runoff=0.40 cfs 1.218 af Runoff Area=4.530 ac 0.00% Impervious Runoff Depth=6.96"Subcatchment 85S: 1S Tc=15.0 min AMC Adjusted CN=98 Runoff=0.86 cfs 2.628 af Runoff Area=5.800 ac 0.00% Impervious Runoff Depth=6.96"Subcatchment 86S: 2S Tc=25.0 min AMC Adjusted CN=98 Runoff=1.10 cfs 3.364 af MN-Snowmelt_10d_100yr 10 day Snowmelt Rainfall=7.20", AMC=4Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 220HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Runoff Area=21.638 ac 0.00% Impervious Runoff Depth=6.96"Subcatchment 87S: M9 Tc=29.0 min AMC Adjusted CN=98 Runoff=4.10 cfs 12.551 af Inflow=6.12 cfs 16.041 afReach 40R: South Drainage Outflow=6.12 cfs 16.041 af Inflow=0.83 cfs 2.221 afReach 42.1R: South Outflow=0.83 cfs 2.221 af Inflow=1.21 cfs 1.810 afReach 42.2R: Southeast Outflow=1.21 cfs 1.810 af Inflow=3.60 cfs 10.141 afReach 44R: Wetland 4 Channel Outflow=3.60 cfs 10.141 af Inflow=1.46 cfs 3.185 afReach 48R: Development to Wetland 4 Outflow=1.46 cfs 3.185 af Avg. Flow Depth=0.27' Max Vel=3.23 fps Inflow=0.80 cfs 2.430 afReach 72R: N68 24.0" Round Pipe n=0.012 L=63.0' S=0.0075 '/' Capacity=21.17 cfs Outflow=0.80 cfs 2.430 af Peak Elev=894.90' Storage=19,020 cf Inflow=0.72 cfs 2.177 afPond 40.1P: South East Discarded=0.07 cfs 1.585 af Primary=0.48 cfs 0.592 af Outflow=0.55 cfs 2.177 af Peak Elev=895.94' Storage=27,703 cf Inflow=0.88 cfs 2.671 afPond 40.2P: South Central Discarded=0.13 cfs 2.539 af Primary=0.07 cfs 0.132 af Outflow=0.20 cfs 2.671 af Peak Elev=898.83' Storage=24,720 cf Inflow=1.00 cfs 3.038 afPond 40.3P: South Discarded=0.08 cfs 1.923 af Primary=0.74 cfs 1.115 af Outflow=0.82 cfs 3.038 af Peak Elev=888.55' Storage=7,824 cf Inflow=0.31 cfs 0.932 afPond 41.1P: South East Discarded=0.06 cfs 0.932 af Primary=0.00 cfs 0.000 af Outflow=0.06 cfs 0.932 af Peak Elev=882.68' Storage=6,110 cf Inflow=0.69 cfs 2.083 afPond 41.2P: South Central Discarded=0.02 cfs 0.551 af Primary=0.65 cfs 1.532 af Outflow=0.67 cfs 2.083 af Peak Elev=890.16' Storage=2,885 cf Inflow=0.13 cfs 0.398 afPond 41.3P: South West Discarded=0.03 cfs 0.398 af Primary=0.00 cfs 0.000 af Outflow=0.03 cfs 0.398 af Peak Elev=884.30' Storage=364 cf Inflow=3.25 cfs 9.062 afPond 44P: Wetland 4 Outflow=3.25 cfs 9.061 af Peak Elev=885.49' Storage=551 cf Inflow=0.42 cfs 1.293 afPond 46P: Triangle Basin Discarded=0.00 cfs 0.052 af Primary=0.42 cfs 1.241 af Secondary=0.00 cfs 0.000 af Outflow=0.42 cfs 1.293 af Peak Elev=909.42' Storage=40,330 cf Inflow=1.34 cfs 4.078 afPond 47P: Bluff Creek - West Basin Discarded=0.15 cfs 3.249 af Primary=0.50 cfs 0.829 af Outflow=0.65 cfs 4.078 af Peak Elev=896.48' Storage=18,259 cf Inflow=0.66 cfs 1.996 afPond 48P: Bluff Creek - East Basin Discarded=0.07 cfs 1.574 af Primary=0.34 cfs 0.422 af Outflow=0.41 cfs 1.996 af MN-Snowmelt_10d_100yr 10 day Snowmelt Rainfall=7.20", AMC=4Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 221HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Peak Elev=896.89' Storage=8,596 cf Inflow=0.41 cfs 1.248 afPond 48P(2): Bluff Creek - East Basin Discarded=0.03 cfs 0.779 af Primary=0.35 cfs 0.470 af Outflow=0.38 cfs 1.248 af Peak Elev=871.35' Storage=70,924 cf Inflow=5.88 cfs 17.924 afPond 71P: Interlachen Outflow=4.65 cfs 17.893 af Peak Elev=871.33' Storage=785,839 cf Inflow=17.17 cfs 53.696 afPond 72P: South MNDOT M9 Wetland Outflow=4.36 cfs 52.679 af Total Runoff Area = 115.998 ac Runoff Volume = 67.309 af Average Runoff Depth = 6.96" 71.25% Pervious = 82.651 ac 28.75% Impervious = 33.347 ac MN-Snowmelt_10d_100yr 10 day Snowmelt Rainfall=7.20", AMC=4Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 222HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 40.1S: South - East Runoff = 0.72 cfs @ 121.30 hrs, Volume= 2.177 af, Depth= 6.96" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-Snowmelt_10d_100yr 10 day Snowmelt Rainfall=7.20", AMC=4 Area (sf) CN Adj Description 29,976 80 98 >75% Grass cover, Good, HSG D 133,492 98 98 Paved parking, HSG D 163,468 Weighted Average 29,976 80 98 18.34% Pervious Area, AMC Adjusted 133,492 98 98 81.66% Impervious Area, AMC Adjusted Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 10.0 Direct Entry, Subcatchment 40.1S: South - East Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.8 0.75 0.7 0.65 0.6 0.55 0.5 0.45 0.4 0.35 0.3 0.25 0.2 0.15 0.1 0.05 0 MN-Snowmelt_10d_100yr 10 day Snowmelt Rainfall=7.20" AMC=4 Runoff Area=163,468 sf Runoff Volume=2.177 af Runoff Depth=6.96" Tc=10.0 min AMC Adjusted CN=WQ 0.72 cfs MN-Snowmelt_10d_100yr 10 day Snowmelt Rainfall=7.20", AMC=4Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 223HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 40.2S: South - Central Runoff = 0.88 cfs @ 121.30 hrs, Volume= 2.671 af, Depth= 6.96" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-Snowmelt_10d_100yr 10 day Snowmelt Rainfall=7.20", AMC=4 Area (sf) CN Adj Description 47,748 80 98 >75% Grass cover, Good, HSG D 152,819 98 98 Paved parking, HSG D 200,567 Weighted Average 47,748 80 98 23.81% Pervious Area, AMC Adjusted 152,819 98 98 76.19% Impervious Area, AMC Adjusted Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 10.0 Direct Entry, Subcatchment 40.2S: South - Central Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.95 0.9 0.85 0.8 0.75 0.7 0.65 0.6 0.55 0.5 0.45 0.4 0.35 0.3 0.25 0.2 0.15 0.1 0.05 0 MN-Snowmelt_10d_100yr 10 day Snowmelt Rainfall=7.20" AMC=4 Runoff Area=200,567 sf Runoff Volume=2.671 af Runoff Depth=6.96" Tc=10.0 min AMC Adjusted CN=WQ 0.88 cfs MN-Snowmelt_10d_100yr 10 day Snowmelt Rainfall=7.20", AMC=4Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 224HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 40.3S: South - West Runoff = 1.00 cfs @ 121.30 hrs, Volume= 3.038 af, Depth= 6.96" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-Snowmelt_10d_100yr 10 day Snowmelt Rainfall=7.20", AMC=4 Area (sf) CN Adj Description 69,464 80 98 >75% Grass cover, Good, HSG D * 158,681 98 98 Paved parking & roofs, HSG D 228,145 Weighted Average 69,464 80 98 30.45% Pervious Area, AMC Adjusted 158,681 98 98 69.55% Impervious Area, AMC Adjusted Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 10.0 Direct Entry, Subcatchment 40.3S: South - West Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)1 0 MN-Snowmelt_10d_100yr 10 day Snowmelt Rainfall=7.20" AMC=4 Runoff Area=228,145 sf Runoff Volume=3.038 af Runoff Depth=6.96" Tc=10.0 min AMC Adjusted CN=WQ 1.00 cfs MN-Snowmelt_10d_100yr 10 day Snowmelt Rainfall=7.20", AMC=4Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 225HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 41.1S: South - East Runoff = 0.31 cfs @ 121.30 hrs, Volume= 0.932 af, Depth= 6.96" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-Snowmelt_10d_100yr 10 day Snowmelt Rainfall=7.20", AMC=4 Area (sf) CN Adj Description 10,289 80 98 >75% Grass cover, Good, HSG D 59,695 98 98 Paved parking, HSG D 69,984 Weighted Average 10,289 80 98 14.70% Pervious Area, AMC Adjusted 59,695 98 98 85.30% Impervious Area, AMC Adjusted Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 10.0 Direct Entry, Subcatchment 41.1S: South - East Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.34 0.32 0.3 0.28 0.26 0.24 0.22 0.2 0.18 0.16 0.14 0.12 0.1 0.08 0.06 0.04 0.02 0 MN-Snowmelt_10d_100yr 10 day Snowmelt Rainfall=7.20" AMC=4 Runoff Area=69,984 sf Runoff Volume=0.932 af Runoff Depth=6.96" Tc=10.0 min AMC Adjusted CN=WQ 0.31 cfs MN-Snowmelt_10d_100yr 10 day Snowmelt Rainfall=7.20", AMC=4Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 226HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 41.2S: South - Central Runoff = 0.69 cfs @ 121.30 hrs, Volume= 2.083 af, Depth= 6.96" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-Snowmelt_10d_100yr 10 day Snowmelt Rainfall=7.20", AMC=4 Area (sf) CN Adj Description 31,015 80 98 >75% Grass cover, Good, HSG D 125,404 98 98 Paved parking, HSG D 156,419 Weighted Average 31,015 80 98 19.83% Pervious Area, AMC Adjusted 125,404 98 98 80.17% Impervious Area, AMC Adjusted Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 10.0 Direct Entry, Subcatchment 41.2S: South - Central Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.75 0.7 0.65 0.6 0.55 0.5 0.45 0.4 0.35 0.3 0.25 0.2 0.15 0.1 0.05 0 MN-Snowmelt_10d_100yr 10 day Snowmelt Rainfall=7.20" AMC=4 Runoff Area=156,419 sf Runoff Volume=2.083 af Runoff Depth=6.96" Tc=10.0 min AMC Adjusted CN=WQ 0.69 cfs MN-Snowmelt_10d_100yr 10 day Snowmelt Rainfall=7.20", AMC=4Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 227HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 41.3S: South - west Runoff = 0.13 cfs @ 121.30 hrs, Volume= 0.398 af, Depth= 6.96" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-Snowmelt_10d_100yr 10 day Snowmelt Rainfall=7.20", AMC=4 Area (sf) CN Adj Description 1,850 80 98 >75% Grass cover, Good, HSG D 28,034 98 98 Paved parking, HSG D 29,884 Weighted Average 1,850 80 98 6.19% Pervious Area, AMC Adjusted 28,034 98 98 93.81% Impervious Area, AMC Adjusted Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 10.0 Direct Entry, Subcatchment 41.3S: South - west Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.14 0.13 0.12 0.11 0.1 0.09 0.08 0.07 0.06 0.05 0.04 0.03 0.02 0.01 0 MN-Snowmelt_10d_100yr 10 day Snowmelt Rainfall=7.20" AMC=4 Runoff Area=29,884 sf Runoff Volume=0.398 af Runoff Depth=6.96" Tc=10.0 min AMC Adjusted CN=WQ 0.13 cfs MN-Snowmelt_10d_100yr 10 day Snowmelt Rainfall=7.20", AMC=4Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 228HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 42.1S: South Runoff = 0.18 cfs @ 121.24 hrs, Volume= 0.558 af, Depth= 6.96" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-Snowmelt_10d_100yr 10 day Snowmelt Rainfall=7.20", AMC=4 Area (sf) CN Adj Description 41,871 80 98 >75% Grass cover, Good, HSG D 41,871 Weighted Average 41,871 80 98 100.00% Pervious Area, AMC Adjusted Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 5.0 Direct Entry, Subcatchment 42.1S: South Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.2 0.19 0.18 0.17 0.16 0.15 0.14 0.13 0.12 0.11 0.1 0.09 0.08 0.07 0.06 0.05 0.04 0.03 0.02 0.01 0 MN-Snowmelt_10d_100yr 10 day Snowmelt Rainfall=7.20" AMC=4 Runoff Area=41,871 sf Runoff Volume=0.558 af Runoff Depth=6.96" Tc=5.0 min AMC Adjusted CN=98 0.18 cfs MN-Snowmelt_10d_100yr 10 day Snowmelt Rainfall=7.20", AMC=4Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 229HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 42.2S: Southeast Runoff = 0.11 cfs @ 121.24 hrs, Volume= 0.327 af, Depth= 6.96" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-Snowmelt_10d_100yr 10 day Snowmelt Rainfall=7.20", AMC=4 Area (sf) CN Adj Description 24,525 80 98 >75% Grass cover, Good, HSG D 24,525 Weighted Average 24,525 80 98 100.00% Pervious Area, AMC Adjusted Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 5.0 Direct Entry, Subcatchment 42.2S: Southeast Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.12 0.115 0.11 0.105 0.1 0.095 0.09 0.085 0.08 0.075 0.07 0.065 0.06 0.055 0.05 0.045 0.04 0.035 0.03 0.025 0.02 0.015 0.01 0.005 0 MN-Snowmelt_10d_100yr 10 day Snowmelt Rainfall=7.20" AMC=4 Runoff Area=24,525 sf Runoff Volume=0.327 af Runoff Depth=6.96" Tc=5.0 min AMC Adjusted CN=98 0.11 cfs MN-Snowmelt_10d_100yr 10 day Snowmelt Rainfall=7.20", AMC=4Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 230HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 43.1S: East Woods Runoff = 0.61 cfs @ 121.35 hrs, Volume= 1.869 af, Depth= 6.96" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-Snowmelt_10d_100yr 10 day Snowmelt Rainfall=7.20", AMC=4 Area (ac) CN Adj Description 3.222 55 98 Woods, Good, HSG B 3.222 Weighted Average 3.222 55 98 100.00% Pervious Area, AMC Adjusted Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 11.1 75 0.0670 0.11 Sheet Flow, Woods: Light underbrush n= 0.400 P2= 2.87" 4.1 455 0.1380 1.86 Shallow Concentrated Flow, Woodland Kv= 5.0 fps 15.2 530 Total Subcatchment 43.1S: East Woods Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.65 0.6 0.55 0.5 0.45 0.4 0.35 0.3 0.25 0.2 0.15 0.1 0.05 0 MN-Snowmelt_10d_100yr 10 day Snowmelt Rainfall=7.20" AMC=4 Runoff Area=3.222 ac Runoff Volume=1.869 af Runoff Depth=6.96" Flow Length=530' Tc=15.2 min AMC Adjusted CN=98 0.61 cfs MN-Snowmelt_10d_100yr 10 day Snowmelt Rainfall=7.20", AMC=4Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 231HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 43.2S: Northeast Woods Runoff = 0.35 cfs @ 121.40 hrs, Volume= 1.080 af, Depth= 6.96" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-Snowmelt_10d_100yr 10 day Snowmelt Rainfall=7.20", AMC=4 Area (ac) CN Adj Description 1.862 55 98 Woods, Good, HSG B 1.862 Weighted Average 1.862 55 98 100.00% Pervious Area, AMC Adjusted Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 14.2 100 0.0650 0.12 Sheet Flow, Woods: Light underbrush n= 0.400 P2= 2.87" 5.3 523 0.1080 1.64 Shallow Concentrated Flow, Woodland Kv= 5.0 fps 19.5 623 Total Subcatchment 43.2S: Northeast Woods Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.38 0.36 0.34 0.32 0.3 0.28 0.26 0.24 0.22 0.2 0.18 0.16 0.14 0.12 0.1 0.08 0.06 0.04 0.02 0 MN-Snowmelt_10d_100yr 10 day Snowmelt Rainfall=7.20" AMC=4 Runoff Area=1.862 ac Runoff Volume=1.080 af Runoff Depth=6.96" Flow Length=623' Tc=19.5 min AMC Adjusted CN=98 0.35 cfs MN-Snowmelt_10d_100yr 10 day Snowmelt Rainfall=7.20", AMC=4Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 232HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 44S: North Woods Runoff = 1.93 cfs @ 121.35 hrs, Volume= 5.877 af, Depth= 6.96" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-Snowmelt_10d_100yr 10 day Snowmelt Rainfall=7.20", AMC=4 Area (sf) CN Adj Description 441,314 55 98 Woods, Good, HSG B 441,314 Weighted Average 441,314 55 98 100.00% Pervious Area, AMC Adjusted Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 11.2 75 0.0660 0.11 Sheet Flow, Woods: Light underbrush n= 0.400 P2= 2.87" 5.3 524 0.1090 1.65 Shallow Concentrated Flow, Woodland Kv= 5.0 fps 16.5 599 Total Subcatchment 44S: North Woods Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)2 1 0 MN-Snowmelt_10d_100yr 10 day Snowmelt Rainfall=7.20" AMC=4 Runoff Area=441,314 sf Runoff Volume=5.877 af Runoff Depth=6.96" Flow Length=599' Tc=16.5 min AMC Adjusted CN=98 1.93 cfs MN-Snowmelt_10d_100yr 10 day Snowmelt Rainfall=7.20", AMC=4Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 233HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 45S: Central - West Runoff = 0.90 cfs @ 121.30 hrs, Volume= 2.747 af, Depth= 6.96" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-Snowmelt_10d_100yr 10 day Snowmelt Rainfall=7.20", AMC=4 Area (sf) CN Adj Description 159,000 95 98 Urban commercial, 85% imp, HSG D 47,303 80 98 >75% Grass cover, Good, HSG D 206,303 Weighted Average 71,153 79 98 34.49% Pervious Area, AMC Adjusted 135,150 98 98 65.51% Impervious Area, AMC Adjusted Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 10.0 Direct Entry, Subcatchment 45S: Central - West Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)1 0 MN-Snowmelt_10d_100yr 10 day Snowmelt Rainfall=7.20" AMC=4 Runoff Area=206,303 sf Runoff Volume=2.747 af Runoff Depth=6.96" Tc=10.0 min AMC Adjusted CN=WQ 0.90 cfs MN-Snowmelt_10d_100yr 10 day Snowmelt Rainfall=7.20", AMC=4Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 234HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 46S: South Townhomes Runoff = 0.42 cfs @ 121.31 hrs, Volume= 1.293 af, Depth= 6.96" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-Snowmelt_10d_100yr 10 day Snowmelt Rainfall=7.20", AMC=4 Area (sf) CN Adj Description 19,025 98 98 Paved parking, HSG D 78,057 80 98 >75% Grass cover, Good, HSG D 97,082 Weighted Average 78,057 80 98 80.40% Pervious Area, AMC Adjusted 19,025 98 98 19.60% Impervious Area, AMC Adjusted Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 11.7 92 0.0320 0.13 Sheet Flow, Grass: Dense n= 0.240 P2= 2.87" 0.9 609 0.5200 10.82 Shallow Concentrated Flow, Grassed Waterway Kv= 15.0 fps 12.6 701 Total Subcatchment 46S: South Townhomes Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.46 0.44 0.42 0.4 0.38 0.36 0.34 0.32 0.3 0.28 0.26 0.24 0.22 0.2 0.18 0.16 0.14 0.12 0.1 0.08 0.06 0.04 0.02 0 MN-Snowmelt_10d_100yr 10 day Snowmelt Rainfall=7.20" AMC=4 Runoff Area=97,082 sf Runoff Volume=1.293 af Runoff Depth=6.96" Flow Length=701' Tc=12.6 min AMC Adjusted CN=WQ 0.42 cfs MN-Snowmelt_10d_100yr 10 day Snowmelt Rainfall=7.20", AMC=4Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 235HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 47S: Bluff Creek Blvd - West Runoff = 0.44 cfs @ 121.24 hrs, Volume= 1.331 af, Depth= 6.96" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-Snowmelt_10d_100yr 10 day Snowmelt Rainfall=7.20", AMC=4 Area (ac) CN Adj Description 0.439 80 98 >75% Grass cover, Good, HSG D 1.856 98 98 Paved roads w/curbs & sewers, HSG D 2.295 Weighted Average 0.439 80 98 19.13% Pervious Area, AMC Adjusted 1.856 98 98 80.87% Impervious Area, AMC Adjusted Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 5.0 Direct Entry, Subcatchment 47S: Bluff Creek Blvd - West Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.48 0.46 0.44 0.42 0.4 0.38 0.36 0.34 0.32 0.3 0.28 0.26 0.24 0.22 0.2 0.18 0.16 0.14 0.12 0.1 0.08 0.06 0.04 0.02 0 MN-Snowmelt_10d_100yr 10 day Snowmelt Rainfall=7.20" AMC=4 Runoff Area=2.295 ac Runoff Volume=1.331 af Runoff Depth=6.96" Tc=5.0 min AMC Adjusted CN=WQ 0.44 cfs MN-Snowmelt_10d_100yr 10 day Snowmelt Rainfall=7.20", AMC=4Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 236HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 48.1S: Direct to 48P (2) Runoff = 0.41 cfs @ 121.30 hrs, Volume= 1.248 af, Depth= 6.96" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-Snowmelt_10d_100yr 10 day Snowmelt Rainfall=7.20", AMC=4 Area (sf) CN Adj Description 29,956 80 98 >75% Grass cover, Good, HSG D 63,765 98 98 Paved parking, HSG D 93,721 Weighted Average 29,956 80 98 31.96% Pervious Area, AMC Adjusted 63,765 98 98 68.04% Impervious Area, AMC Adjusted Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 10.0 Direct Entry, Subcatchment 48.1S: Direct to 48P (2) Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.46 0.44 0.42 0.4 0.38 0.36 0.34 0.32 0.3 0.28 0.26 0.24 0.22 0.2 0.18 0.16 0.14 0.12 0.1 0.08 0.06 0.04 0.02 0 MN-Snowmelt_10d_100yr 10 day Snowmelt Rainfall=7.20" AMC=4 Runoff Area=93,721 sf Runoff Volume=1.248 af Runoff Depth=6.96" Tc=10.0 min AMC Adjusted CN=WQ 0.41 cfs MN-Snowmelt_10d_100yr 10 day Snowmelt Rainfall=7.20", AMC=4Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 237HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 48S: Bluff Creek Blvd - East Runoff = 0.66 cfs @ 121.24 hrs, Volume= 1.996 af, Depth= 6.96" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-Snowmelt_10d_100yr 10 day Snowmelt Rainfall=7.20", AMC=4 Area (ac) CN Adj Description 0.642 80 98 >75% Grass cover, Good, HSG D 2.799 98 98 Paved roads w/curbs & sewers, HSG D 3.441 Weighted Average 0.642 80 98 18.66% Pervious Area, AMC Adjusted 2.799 98 98 81.34% Impervious Area, AMC Adjusted Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 5.0 Direct Entry, Subcatchment 48S: Bluff Creek Blvd - East Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.7 0.65 0.6 0.55 0.5 0.45 0.4 0.35 0.3 0.25 0.2 0.15 0.1 0.05 0 MN-Snowmelt_10d_100yr 10 day Snowmelt Rainfall=7.20" AMC=4 Runoff Area=3.441 ac Runoff Volume=1.996 af Runoff Depth=6.96" Tc=5.0 min AMC Adjusted CN=WQ 0.66 cfs MN-Snowmelt_10d_100yr 10 day Snowmelt Rainfall=7.20", AMC=4Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 238HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 71-1S: Interlacn Subcatch 1 Runoff = 0.40 cfs @ 121.26 hrs, Volume= 1.207 af, Depth= 6.96" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-Snowmelt_10d_100yr 10 day Snowmelt Rainfall=7.20", AMC=4 Area (ac) CN Adj Description * 2.080 84 98 Weoghted 2.080 Weighted Average 2.080 84 98 100.00% Pervious Area, AMC Adjusted Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 7.0 Direct Entry, Subcatchment 71-1S: Interlacn Subcatch 1 Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.44 0.42 0.4 0.38 0.36 0.34 0.32 0.3 0.28 0.26 0.24 0.22 0.2 0.18 0.16 0.14 0.12 0.1 0.08 0.06 0.04 0.02 0 MN-Snowmelt_10d_100yr 10 day Snowmelt Rainfall=7.20" AMC=4 Runoff Area=2.080 ac Runoff Volume=1.207 af Runoff Depth=6.96" Tc=7.0 min AMC Adjusted CN=98 0.40 cfs MN-Snowmelt_10d_100yr 10 day Snowmelt Rainfall=7.20", AMC=4Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 239HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 71-2S: Interlacn Subcatch 2 Runoff = 0.22 cfs @ 121.26 hrs, Volume= 0.696 af, Depth= 7.20" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-Snowmelt_10d_100yr 10 day Snowmelt Rainfall=7.20", AMC=4 Area (ac) CN Description * 1.160 100 1.160 100 100.00% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 7.0 Direct Entry, Subcatchment 71-2S: Interlacn Subcatch 2 Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.24 0.23 0.22 0.21 0.2 0.19 0.18 0.17 0.16 0.15 0.14 0.13 0.12 0.11 0.1 0.09 0.08 0.07 0.06 0.05 0.04 0.03 0.02 0.01 0 MN-Snowmelt_10d_100yr 10 day Snowmelt Rainfall=7.20" AMC=4 Runoff Area=1.160 ac Runoff Volume=0.696 af Runoff Depth=7.20" Tc=7.0 min CN=100 0.22 cfs MN-Snowmelt_10d_100yr 10 day Snowmelt Rainfall=7.20", AMC=4Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 240HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 72S: 6_Temp Runoff = 0.15 cfs @ 121.29 hrs, Volume= 0.470 af, Depth= 6.96" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-Snowmelt_10d_100yr 10 day Snowmelt Rainfall=7.20", AMC=4 Area (ac) CN Adj Description * 0.810 94 98 Weighted 0.810 Weighted Average 0.810 94 98 100.00% Pervious Area, AMC Adjusted Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 9.0 Direct Entry, Subcatchment 72S: 6_Temp Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.17 0.16 0.15 0.14 0.13 0.12 0.11 0.1 0.09 0.08 0.07 0.06 0.05 0.04 0.03 0.02 0.01 0 MN-Snowmelt_10d_100yr 10 day Snowmelt Rainfall=7.20" AMC=4 Runoff Area=0.810 ac Runoff Volume=0.470 af Runoff Depth=6.96" Tc=9.0 min AMC Adjusted CN=98 0.15 cfs MN-Snowmelt_10d_100yr 10 day Snowmelt Rainfall=7.20", AMC=4Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 241HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 73S: N68 Runoff = 0.45 cfs @ 121.26 hrs, Volume= 1.369 af, Depth= 6.96" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-Snowmelt_10d_100yr 10 day Snowmelt Rainfall=7.20", AMC=4 Area (ac) CN Description * 2.360 98 Weighted 2.360 98 100.00% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 7.0 Direct Entry, Subcatchment 73S: N68 Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.5 0.48 0.46 0.44 0.42 0.4 0.38 0.36 0.34 0.32 0.3 0.28 0.26 0.24 0.22 0.2 0.18 0.16 0.14 0.12 0.1 0.08 0.06 0.04 0.02 0 MN-Snowmelt_10d_100yr 10 day Snowmelt Rainfall=7.20" AMC=4 Runoff Area=2.360 ac Runoff Volume=1.369 af Runoff Depth=6.96" Tc=7.0 min CN=98 0.45 cfs MN-Snowmelt_10d_100yr 10 day Snowmelt Rainfall=7.20", AMC=4Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 242HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 74S: 5_Temp Runoff = 0.19 cfs @ 121.29 hrs, Volume= 0.592 af, Depth= 6.96" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-Snowmelt_10d_100yr 10 day Snowmelt Rainfall=7.20", AMC=4 Area (ac) CN Adj Description * 1.020 90 98 1.020 Weighted Average 1.020 90 98 100.00% Pervious Area, AMC Adjusted Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 9.0 Direct Entry, Subcatchment 74S: 5_Temp Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.21 0.2 0.19 0.18 0.17 0.16 0.15 0.14 0.13 0.12 0.11 0.1 0.09 0.08 0.07 0.06 0.05 0.04 0.03 0.02 0.01 0 MN-Snowmelt_10d_100yr 10 day Snowmelt Rainfall=7.20" AMC=4 Runoff Area=1.020 ac Runoff Volume=0.592 af Runoff Depth=6.96" Tc=9.0 min AMC Adjusted CN=98 0.19 cfs MN-Snowmelt_10d_100yr 10 day Snowmelt Rainfall=7.20", AMC=4Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 243HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 75S: 3225 Runoff = 0.58 cfs @ 121.26 hrs, Volume= 1.746 af, Depth= 6.96" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-Snowmelt_10d_100yr 10 day Snowmelt Rainfall=7.20", AMC=4 Area (ac) CN Description * 3.010 98 Weighted 3.010 98 100.00% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 7.0 Direct Entry, Subcatchment 75S: 3225 Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.6 0.55 0.5 0.45 0.4 0.35 0.3 0.25 0.2 0.15 0.1 0.05 0 MN-Snowmelt_10d_100yr 10 day Snowmelt Rainfall=7.20" AMC=4 Runoff Area=3.010 ac Runoff Volume=1.746 af Runoff Depth=6.96" Tc=7.0 min CN=98 0.58 cfs MN-Snowmelt_10d_100yr 10 day Snowmelt Rainfall=7.20", AMC=4Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 244HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 76S: 3236 Runoff = 1.58 cfs @ 121.35 hrs, Volume= 4.820 af, Depth= 6.96" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-Snowmelt_10d_100yr 10 day Snowmelt Rainfall=7.20", AMC=4 Area (ac) CN Adj Description * 8.310 80 98 Weighted 8.310 Weighted Average 8.310 80 98 100.00% Pervious Area, AMC Adjusted Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 14.0 Direct Entry, Subcatchment 76S: 3236 Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)1 0 MN-Snowmelt_10d_100yr 10 day Snowmelt Rainfall=7.20" AMC=4 Runoff Area=8.310 ac Runoff Volume=4.820 af Runoff Depth=6.96" Tc=14.0 min AMC Adjusted CN=98 1.58 cfs MN-Snowmelt_10d_100yr 10 day Snowmelt Rainfall=7.20", AMC=4Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 245HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 77S: 3238 Runoff = 0.18 cfs @ 121.26 hrs, Volume= 0.551 af, Depth= 6.96" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-Snowmelt_10d_100yr 10 day Snowmelt Rainfall=7.20", AMC=4 Area (ac) CN Adj Description * 0.950 83 98 Weighted 0.950 Weighted Average 0.950 83 98 100.00% Pervious Area, AMC Adjusted Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 7.0 Direct Entry, Subcatchment 77S: 3238 Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.2 0.19 0.18 0.17 0.16 0.15 0.14 0.13 0.12 0.11 0.1 0.09 0.08 0.07 0.06 0.05 0.04 0.03 0.02 0.01 0 MN-Snowmelt_10d_100yr 10 day Snowmelt Rainfall=7.20" AMC=4 Runoff Area=0.950 ac Runoff Volume=0.551 af Runoff Depth=6.96" Tc=7.0 min AMC Adjusted CN=98 0.18 cfs MN-Snowmelt_10d_100yr 10 day Snowmelt Rainfall=7.20", AMC=4Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 246HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 78S: 3243 Runoff = 0.12 cfs @ 121.26 hrs, Volume= 0.365 af, Depth= 6.96" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-Snowmelt_10d_100yr 10 day Snowmelt Rainfall=7.20", AMC=4 Area (ac) CN Adj Description * 0.630 91 98 Weighted 0.630 Weighted Average 0.630 91 98 100.00% Pervious Area, AMC Adjusted Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 7.0 Direct Entry, Subcatchment 78S: 3243 Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.13 0.12 0.11 0.1 0.09 0.08 0.07 0.06 0.05 0.04 0.03 0.02 0.01 0 MN-Snowmelt_10d_100yr 10 day Snowmelt Rainfall=7.20" AMC=4 Runoff Area=0.630 ac Runoff Volume=0.365 af Runoff Depth=6.96" Tc=7.0 min AMC Adjusted CN=98 0.12 cfs MN-Snowmelt_10d_100yr 10 day Snowmelt Rainfall=7.20", AMC=4Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 247HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 79S: 3245 Runoff = 0.39 cfs @ 121.26 hrs, Volume= 1.189 af, Depth= 6.96" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-Snowmelt_10d_100yr 10 day Snowmelt Rainfall=7.20", AMC=4 Area (ac) CN Description * 2.050 98 Weighted 2.050 98 100.00% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 7.0 Direct Entry, Subcatchment 79S: 3245 Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.42 0.4 0.38 0.36 0.34 0.32 0.3 0.28 0.26 0.24 0.22 0.2 0.18 0.16 0.14 0.12 0.1 0.08 0.06 0.04 0.02 0 MN-Snowmelt_10d_100yr 10 day Snowmelt Rainfall=7.20" AMC=4 Runoff Area=2.050 ac Runoff Volume=1.189 af Runoff Depth=6.96" Tc=7.0 min CN=98 0.39 cfs MN-Snowmelt_10d_100yr 10 day Snowmelt Rainfall=7.20", AMC=4Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 248HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 80S: 3250 Runoff = 0.07 cfs @ 121.26 hrs, Volume= 0.203 af, Depth= 6.96" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-Snowmelt_10d_100yr 10 day Snowmelt Rainfall=7.20", AMC=4 Area (ac) CN Adj Description * 0.350 90 98 Weighted 0.350 Weighted Average 0.350 90 98 100.00% Pervious Area, AMC Adjusted Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 7.0 Direct Entry, Subcatchment 80S: 3250 Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.07 0.065 0.06 0.055 0.05 0.045 0.04 0.035 0.03 0.025 0.02 0.015 0.01 0.005 0 MN-Snowmelt_10d_100yr 10 day Snowmelt Rainfall=7.20" AMC=4 Runoff Area=0.350 ac Runoff Volume=0.203 af Runoff Depth=6.96" Tc=7.0 min AMC Adjusted CN=98 0.07 cfs MN-Snowmelt_10d_100yr 10 day Snowmelt Rainfall=7.20", AMC=4Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 249HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 81S: 3343 Runoff = 1.13 cfs @ 121.41 hrs, Volume= 3.451 af, Depth= 6.96" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-Snowmelt_10d_100yr 10 day Snowmelt Rainfall=7.20", AMC=4 Area (ac) CN Adj Description * 5.950 76 98 Weighted 5.950 Weighted Average 5.950 76 98 100.00% Pervious Area, AMC Adjusted Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 19.0 Direct Entry, Subcatchment 81S: 3343 Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)1 0 MN-Snowmelt_10d_100yr 10 day Snowmelt Rainfall=7.20" AMC=4 Runoff Area=5.950 ac Runoff Volume=3.451 af Runoff Depth=6.96" Tc=19.0 min AMC Adjusted CN=98 1.13 cfs MN-Snowmelt_10d_100yr 10 day Snowmelt Rainfall=7.20", AMC=4Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 250HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 82S: 3345 Runoff = 0.28 cfs @ 121.26 hrs, Volume= 0.858 af, Depth= 6.96" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-Snowmelt_10d_100yr 10 day Snowmelt Rainfall=7.20", AMC=4 Area (ac) CN Adj Description * 1.480 78 98 Weighted 1.480 Weighted Average 1.480 78 98 100.00% Pervious Area, AMC Adjusted Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 7.0 Direct Entry, Subcatchment 82S: 3345 Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.3 0.28 0.26 0.24 0.22 0.2 0.18 0.16 0.14 0.12 0.1 0.08 0.06 0.04 0.02 0 MN-Snowmelt_10d_100yr 10 day Snowmelt Rainfall=7.20" AMC=4 Runoff Area=1.480 ac Runoff Volume=0.858 af Runoff Depth=6.96" Tc=7.0 min AMC Adjusted CN=98 0.28 cfs MN-Snowmelt_10d_100yr 10 day Snowmelt Rainfall=7.20", AMC=4Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 251HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 83S: 3348 Runoff = 0.13 cfs @ 121.26 hrs, Volume= 0.406 af, Depth= 6.96" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-Snowmelt_10d_100yr 10 day Snowmelt Rainfall=7.20", AMC=4 Area (ac) CN Adj Description * 0.700 87 98 Weighted 0.700 Weighted Average 0.700 87 98 100.00% Pervious Area, AMC Adjusted Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 7.0 Direct Entry, Subcatchment 83S: 3348 Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.14 0.13 0.12 0.11 0.1 0.09 0.08 0.07 0.06 0.05 0.04 0.03 0.02 0.01 0 MN-Snowmelt_10d_100yr 10 day Snowmelt Rainfall=7.20" AMC=4 Runoff Area=0.700 ac Runoff Volume=0.406 af Runoff Depth=6.96" Tc=7.0 min AMC Adjusted CN=98 0.13 cfs MN-Snowmelt_10d_100yr 10 day Snowmelt Rainfall=7.20", AMC=4Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 252HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 84S: SE12 Runoff = 0.40 cfs @ 121.31 hrs, Volume= 1.218 af, Depth= 6.96" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-Snowmelt_10d_100yr 10 day Snowmelt Rainfall=7.20", AMC=4 Area (ac) CN Adj Description * 2.100 79 98 Weighted 2.100 Weighted Average 2.100 79 98 100.00% Pervious Area, AMC Adjusted Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 11.0 Direct Entry, Subcatchment 84S: SE12 Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.44 0.42 0.4 0.38 0.36 0.34 0.32 0.3 0.28 0.26 0.24 0.22 0.2 0.18 0.16 0.14 0.12 0.1 0.08 0.06 0.04 0.02 0 MN-Snowmelt_10d_100yr 10 day Snowmelt Rainfall=7.20" AMC=4 Runoff Area=2.100 ac Runoff Volume=1.218 af Runoff Depth=6.96" Tc=11.0 min AMC Adjusted CN=98 0.40 cfs MN-Snowmelt_10d_100yr 10 day Snowmelt Rainfall=7.20", AMC=4Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 253HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 85S: 1S Runoff = 0.86 cfs @ 121.35 hrs, Volume= 2.628 af, Depth= 6.96" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-Snowmelt_10d_100yr 10 day Snowmelt Rainfall=7.20", AMC=4 Area (ac) CN Adj Description * 4.530 69 98 Weighted 4.530 Weighted Average 4.530 69 98 100.00% Pervious Area, AMC Adjusted Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 15.0 Direct Entry, Subcatchment 85S: 1S Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.95 0.9 0.85 0.8 0.75 0.7 0.65 0.6 0.55 0.5 0.45 0.4 0.35 0.3 0.25 0.2 0.15 0.1 0.05 0 MN-Snowmelt_10d_100yr 10 day Snowmelt Rainfall=7.20" AMC=4 Runoff Area=4.530 ac Runoff Volume=2.628 af Runoff Depth=6.96" Tc=15.0 min AMC Adjusted CN=98 0.86 cfs MN-Snowmelt_10d_100yr 10 day Snowmelt Rainfall=7.20", AMC=4Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 254HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 86S: 2S Runoff = 1.10 cfs @ 121.47 hrs, Volume= 3.364 af, Depth= 6.96" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-Snowmelt_10d_100yr 10 day Snowmelt Rainfall=7.20", AMC=4 Area (ac) CN Adj Description * 5.800 69 98 Weighted 5.800 Weighted Average 5.800 69 98 100.00% Pervious Area, AMC Adjusted Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 25.0 Direct Entry, Subcatchment 86S: 2S Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)1 0 MN-Snowmelt_10d_100yr 10 day Snowmelt Rainfall=7.20" AMC=4 Runoff Area=5.800 ac Runoff Volume=3.364 af Runoff Depth=6.96" Tc=25.0 min AMC Adjusted CN=98 1.10 cfs MN-Snowmelt_10d_100yr 10 day Snowmelt Rainfall=7.20", AMC=4Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 255HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 87S: M9 Runoff = 4.10 cfs @ 121.51 hrs, Volume= 12.551 af, Depth= 6.96" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-Snowmelt_10d_100yr 10 day Snowmelt Rainfall=7.20", AMC=4 Area (ac) CN Adj Description * 21.638 76 98 Weighted 21.638 Weighted Average 21.638 76 98 100.00% Pervious Area, AMC Adjusted Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 29.0 Direct Entry, Subcatchment 87S: M9 Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)4 3 2 1 0 MN-Snowmelt_10d_100yr 10 day Snowmelt Rainfall=7.20" AMC=4 Runoff Area=21.638 ac Runoff Volume=12.551 af Runoff Depth=6.96" Tc=29.0 min AMC Adjusted CN=98 4.10 cfs MN-Snowmelt_10d_100yr 10 day Snowmelt Rainfall=7.20", AMC=4Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 256HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Reach 40R: South Drainage [40] Hint: Not Described (Outflow=Inflow) Inflow Area = 51.070 ac, 48.50% Impervious, Inflow Depth = 3.77" for 10 day Snowmelt event Inflow = 6.12 cfs @ 121.58 hrs, Volume= 16.041 af Outflow = 6.12 cfs @ 121.58 hrs, Volume= 16.041 af, Atten= 0%, Lag= 0.0 min Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Reach 40R: South Drainage Inflow Outflow Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)6 5 4 3 2 1 0 Inflow Area=51.070 ac 6.12 cfs 6.12 cfs MN-Snowmelt_10d_100yr 10 day Snowmelt Rainfall=7.20", AMC=4Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 257HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Reach 42.1R: South [40] Hint: Not Described (Outflow=Inflow) Inflow Area = 9.843 ac, 71.43% Impervious, Inflow Depth = 2.71" for 10 day Snowmelt event Inflow = 0.83 cfs @ 121.38 hrs, Volume= 2.221 af Outflow = 0.83 cfs @ 121.38 hrs, Volume= 2.221 af, Atten= 0%, Lag= 0.0 min Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Reach 42.1R: South Inflow Outflow Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.9 0.85 0.8 0.75 0.7 0.65 0.6 0.55 0.5 0.45 0.4 0.35 0.3 0.25 0.2 0.15 0.1 0.05 0 Inflow Area=9.843 ac 0.83 cfs 0.83 cfs MN-Snowmelt_10d_100yr 10 day Snowmelt Rainfall=7.20", AMC=4Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 258HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Reach 42.2R: Southeast [40] Hint: Not Described (Outflow=Inflow) Inflow Area = 11.515 ac, 75.54% Impervious, Inflow Depth = 1.89" for 10 day Snowmelt event Inflow = 1.21 cfs @ 122.75 hrs, Volume= 1.810 af Outflow = 1.21 cfs @ 122.75 hrs, Volume= 1.810 af, Atten= 0%, Lag= 0.0 min Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Reach 42.2R: Southeast Inflow Outflow Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)1 0 Inflow Area=11.515 ac 1.21 cfs 1.21 cfs MN-Snowmelt_10d_100yr 10 day Snowmelt Rainfall=7.20", AMC=4Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 259HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Reach 44R: Wetland 4 Channel [40] Hint: Not Described (Outflow=Inflow) Inflow Area = 26.490 ac, 34.12% Impervious, Inflow Depth = 4.59" for 10 day Snowmelt event Inflow = 3.60 cfs @ 121.50 hrs, Volume= 10.141 af Outflow = 3.60 cfs @ 121.50 hrs, Volume= 10.141 af, Atten= 0%, Lag= 0.0 min Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Reach 44R: Wetland 4 Channel Inflow Outflow Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)4 3 2 1 0 Inflow Area=26.490 ac 3.60 cfs 3.60 cfs MN-Snowmelt_10d_100yr 10 day Snowmelt Rainfall=7.20", AMC=4Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 260HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Reach 48R: Development to Wetland 4 [40] Hint: Not Described (Outflow=Inflow) Inflow Area = 14.497 ac, 62.34% Impervious, Inflow Depth = 2.64" for 10 day Snowmelt event Inflow = 1.46 cfs @ 122.97 hrs, Volume= 3.185 af Outflow = 1.46 cfs @ 122.97 hrs, Volume= 3.185 af, Atten= 0%, Lag= 0.0 min Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Reach 48R: Development to Wetland 4 Inflow Outflow Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)1 0 Inflow Area=14.497 ac 1.46 cfs 1.46 cfs MN-Snowmelt_10d_100yr 10 day Snowmelt Rainfall=7.20", AMC=4Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 261HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Reach 72R: N68 [52] Hint: Inlet/Outlet conditions not evaluated Inflow Area = 4.190 ac, 56.32% Impervious, Inflow Depth = 6.96" for 10 day Snowmelt event Inflow = 0.80 cfs @ 121.27 hrs, Volume= 2.430 af Outflow = 0.80 cfs @ 121.28 hrs, Volume= 2.430 af, Atten= 0%, Lag= 0.5 min Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Max. Velocity= 3.23 fps, Min. Travel Time= 0.3 min Avg. Velocity = 1.77 fps, Avg. Travel Time= 0.6 min Peak Storage= 16 cf @ 121.28 hrs Average Depth at Peak Storage= 0.27' Bank-Full Depth= 2.00' Flow Area= 3.1 sf, Capacity= 21.17 cfs 24.0" Round Pipe n= 0.012 Length= 63.0' Slope= 0.0075 '/' Inlet Invert= 872.00', Outlet Invert= 871.53' Reach 72R: N68 Inflow Outflow Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.85 0.8 0.75 0.7 0.65 0.6 0.55 0.5 0.45 0.4 0.35 0.3 0.25 0.2 0.15 0.1 0.05 0 Inflow Area=4.190 ac Avg. Flow Depth=0.27' Max Vel=3.23 fps 24.0" Round Pipe n=0.012 L=63.0' S=0.0075 '/' Capacity=21.17 cfs 0.80 cfs 0.80 cfs MN-Snowmelt_10d_100yr 10 day Snowmelt Rainfall=7.20", AMC=4Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 262HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Pond 40.1P: South East Inflow Area = 3.753 ac, 81.66% Impervious, Inflow Depth = 6.96" for 10 day Snowmelt event Inflow = 0.72 cfs @ 121.30 hrs, Volume= 2.177 af Outflow = 0.55 cfs @ 122.83 hrs, Volume= 2.177 af, Atten= 23%, Lag= 92.0 min Discarded = 0.07 cfs @ 42.28 hrs, Volume= 1.585 af Primary = 0.48 cfs @ 122.83 hrs, Volume= 0.592 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 894.90' @ 122.83 hrs Surf.Area= 51,048 sf Storage= 19,020 cf Plug-Flow detention time= 1,437.7 min calculated for 2.177 af (100% of inflow) Center-of-Mass det. time= 1,437.8 min ( 8,823.4 - 7,385.6 ) Volume Invert Avail.Storage Storage Description #1 893.70' 34,978 cf Custom Stage Data (Prismatic) Listed below (Recalc) 117,410 cf Overall - 818 cf Embedded = 116,593 cf x 30.0% Voids #2 896.00' 40,511 cf Custom Stage Data (Prismatic) Listed below (Recalc) 102,096 cf Overall - 818 cf Embedded = 101,278 cf x 40.0% Voids #3 893.70' 818 cf 8.0" Round Pipe Storage Inside #1 L= 2,343.0' #4 896.00' 818 cf 8.0" Round Pipe Storage Inside #2 L= 2,343.0' 77,125 cf Total Available Storage Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 893.70 51,048 0 0 896.00 51,048 117,410 117,410 Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 896.00 51,048 0 0 898.00 51,048 102,096 102,096 Device Routing Invert Outlet Devices #1 Primary 893.70'12.0" Round Culvert L= 260.0' RCP, sq.cut end projecting, Ke= 0.500 Inlet / Outlet Invert= 893.70' / 891.88' S= 0.0070 '/' Cc= 0.900 n= 0.011 Concrete pipe, straight & clean, Flow Area= 0.79 sf #2 Device 1 894.50'8.0" Vert. Orifice/Grate C= 0.600 #3 Device 1 896.67'12.0" Vert. Orifice/Grate C= 0.600 #4 Discarded 893.70'0.060 in/hr Exfiltration over Surface area Phase-In= 0.01' Discarded OutFlow Max=0.07 cfs @ 42.28 hrs HW=893.71' (Free Discharge) 4=Exfiltration (Exfiltration Controls 0.07 cfs) Primary OutFlow Max=0.48 cfs @ 122.83 hrs HW=894.90' TW=0.00' (Dynamic Tailwater) 1=Culvert (Passes 0.48 cfs of 3.17 cfs potential flow) 2=Orifice/Grate (Orifice Controls 0.48 cfs @ 2.17 fps) 3=Orifice/Grate ( Controls 0.00 cfs) MN-Snowmelt_10d_100yr 10 day Snowmelt Rainfall=7.20", AMC=4Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 263HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Pond 40.1P: South East Inflow Outflow Discarded Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.8 0.75 0.7 0.65 0.6 0.55 0.5 0.45 0.4 0.35 0.3 0.25 0.2 0.15 0.1 0.05 0 Inflow Area=3.753 ac Peak Elev=894.90' Storage=19,020 cf 0.72 cfs 0.55 cfs 0.07 cfs 0.48 cfs MN-Snowmelt_10d_100yr 10 day Snowmelt Rainfall=7.20", AMC=4Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 264HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Pond 40.2P: South Central Inflow Area = 4.604 ac, 76.19% Impervious, Inflow Depth = 6.96" for 10 day Snowmelt event Inflow = 0.88 cfs @ 121.30 hrs, Volume= 2.671 af Outflow = 0.20 cfs @ 135.21 hrs, Volume= 2.671 af, Atten= 77%, Lag= 834.4 min Discarded = 0.13 cfs @ 84.59 hrs, Volume= 2.539 af Primary = 0.07 cfs @ 135.21 hrs, Volume= 0.132 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 895.94' @ 135.21 hrs Surf.Area= 94,313 sf Storage= 27,703 cf Plug-Flow detention time= 1,531.6 min calculated for 2.671 af (100% of inflow) Center-of-Mass det. time= 1,531.6 min ( 8,917.2 - 7,385.6 ) Volume Invert Avail.Storage Storage Description #1 895.00' 64,623 cf Custom Stage Data (Prismatic) Listed below (Recalc) 216,920 cf Overall - 1,511 cf Embedded = 215,409 cf x 30.0% Voids #2 897.30' 74,846 cf Custom Stage Data (Prismatic) Listed below (Recalc) 188,626 cf Overall - 1,511 cf Embedded = 187,115 cf x 40.0% Voids #3 895.00' 1,511 cf 8.0" Round Pipe Storage Inside #1 L= 4,328.0' #4 897.30' 1,511 cf 8.0" Round Pipe Storage Inside #2 L= 4,328.0' 142,490 cf Total Available Storage Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 895.00 94,313 0 0 897.30 94,313 216,920 216,920 Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 897.30 94,313 0 0 899.30 94,313 188,626 188,626 Device Routing Invert Outlet Devices #1 Primary 895.00'12.0" Round Culvert L= 250.0' RCP, sq.cut end projecting, Ke= 0.500 Inlet / Outlet Invert= 895.00' / 893.25' S= 0.0070 '/' Cc= 0.900 n= 0.011 Concrete pipe, straight & clean, Flow Area= 0.79 sf #2 Device 1 895.80'8.0" Vert. Orifice/Grate C= 0.600 #3 Device 1 897.97'8.0" Vert. Orifice/Grate C= 0.600 #4 Discarded 895.00'0.060 in/hr Exfiltration over Surface area Phase-In= 0.01' Discarded OutFlow Max=0.13 cfs @ 84.59 hrs HW=895.01' (Free Discharge) 4=Exfiltration (Exfiltration Controls 0.13 cfs) Primary OutFlow Max=0.07 cfs @ 135.21 hrs HW=895.94' TW=0.00' (Dynamic Tailwater) 1=Culvert (Passes 0.07 cfs of 2.53 cfs potential flow) 2=Orifice/Grate (Orifice Controls 0.07 cfs @ 1.28 fps) 3=Orifice/Grate ( Controls 0.00 cfs) MN-Snowmelt_10d_100yr 10 day Snowmelt Rainfall=7.20", AMC=4Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 265HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Pond 40.2P: South Central Inflow Outflow Discarded Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.95 0.9 0.85 0.8 0.75 0.7 0.65 0.6 0.55 0.5 0.45 0.4 0.35 0.3 0.25 0.2 0.15 0.1 0.05 0 Inflow Area=4.604 ac Peak Elev=895.94' Storage=27,703 cf 0.88 cfs 0.20 cfs 0.13 cfs 0.07 cfs MN-Snowmelt_10d_100yr 10 day Snowmelt Rainfall=7.20", AMC=4Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 266HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Pond 40.3P: South Inflow Area = 5.237 ac, 69.55% Impervious, Inflow Depth = 6.96" for 10 day Snowmelt event Inflow = 1.00 cfs @ 121.30 hrs, Volume= 3.038 af Outflow = 0.82 cfs @ 122.49 hrs, Volume= 3.038 af, Atten= 18%, Lag= 71.6 min Discarded = 0.08 cfs @ 27.19 hrs, Volume= 1.923 af Primary = 0.74 cfs @ 122.49 hrs, Volume= 1.115 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 898.83' @ 122.49 hrs Surf.Area= 60,232 sf Storage= 24,720 cf Plug-Flow detention time= 1,403.7 min calculated for 3.038 af (100% of inflow) Center-of-Mass det. time= 1,403.8 min ( 8,789.4 - 7,385.6 ) Volume Invert Avail.Storage Storage Description #1 897.50' 41,271 cf Custom Stage Data (Prismatic) Listed below (Recalc) 138,534 cf Overall - 965 cf Embedded = 137,569 cf x 30.0% Voids #2 899.80' 47,800 cf Custom Stage Data (Prismatic) Listed below (Recalc) 120,464 cf Overall - 965 cf Embedded = 119,499 cf x 40.0% Voids #3 897.50' 965 cf 8.0" Round Pipe Storage Inside #1 L= 2,764.0' #4 899.80' 965 cf 8.0" Round Pipe Storage Inside #2 L= 2,764.0' 91,000 cf Total Available Storage Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 897.50 60,232 0 0 899.80 60,232 138,534 138,534 Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 899.80 60,232 0 0 901.80 60,232 120,464 120,464 Device Routing Invert Outlet Devices #1 Primary 897.50'12.0" Round Culvert L= 175.0' RCP, sq.cut end projecting, Ke= 0.500 Inlet / Outlet Invert= 897.50' / 896.27' S= 0.0070 '/' Cc= 0.900 n= 0.011 Concrete pipe, straight & clean, Flow Area= 0.79 sf #2 Device 1 898.30'8.0" Vert. Orifice/Grate C= 0.600 #3 Device 1 900.47'8.0" Vert. Orifice/Grate C= 0.600 #4 Discarded 897.50'0.060 in/hr Exfiltration over Surface area Phase-In= 0.01' Discarded OutFlow Max=0.08 cfs @ 27.19 hrs HW=897.51' (Free Discharge) 4=Exfiltration (Exfiltration Controls 0.08 cfs) Primary OutFlow Max=0.74 cfs @ 122.49 hrs HW=898.83' TW=0.00' (Dynamic Tailwater) 1=Culvert (Passes 0.74 cfs of 3.43 cfs potential flow) 2=Orifice/Grate (Orifice Controls 0.74 cfs @ 2.48 fps) 3=Orifice/Grate ( Controls 0.00 cfs) MN-Snowmelt_10d_100yr 10 day Snowmelt Rainfall=7.20", AMC=4Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 267HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Pond 40.3P: South Inflow Outflow Discarded Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)1 0 Inflow Area=5.237 ac Peak Elev=898.83' Storage=24,720 cf 1.00 cfs 0.82 cfs 0.08 cfs 0.74 cfs MN-Snowmelt_10d_100yr 10 day Snowmelt Rainfall=7.20", AMC=4Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 268HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Pond 41.1P: South East Inflow Area = 1.607 ac, 85.30% Impervious, Inflow Depth = 6.96" for 10 day Snowmelt event Inflow = 0.31 cfs @ 121.30 hrs, Volume= 0.932 af Outflow = 0.06 cfs @ 101.94 hrs, Volume= 0.932 af, Atten= 80%, Lag= 0.0 min Discarded = 0.06 cfs @ 101.94 hrs, Volume= 0.932 af Primary = 0.00 cfs @ 0.00 hrs, Volume= 0.000 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 888.55' @ 137.91 hrs Surf.Area= 45,024 sf Storage= 7,824 cf Plug-Flow detention time= 810.2 min calculated for 0.932 af (100% of inflow) Center-of-Mass det. time= 810.2 min ( 8,195.8 - 7,385.6 ) Volume Invert Avail.Storage Storage Description #1 888.00' 30,850 cf Custom Stage Data (Prismatic) Listed below (Recalc) 103,555 cf Overall - 721 cf Embedded = 102,834 cf x 30.0% Voids #2 890.30' 35,731 cf Custom Stage Data (Prismatic) Listed below (Recalc) 90,048 cf Overall - 721 cf Embedded = 89,327 cf x 40.0% Voids #3 888.00' 721 cf 8.0" Round Pipe Storage Inside #1 L= 2,066.0' #4 890.30' 721 cf 8.0" Round Pipe Storage Inside #2 L= 2,066.0' 68,023 cf Total Available Storage Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 888.00 45,024 0 0 890.30 45,024 103,555 103,555 Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 890.30 45,024 0 0 892.30 45,024 90,048 90,048 Device Routing Invert Outlet Devices #1 Primary 888.00'12.0" Round Culvert L= 70.0' RCP, sq.cut end projecting, Ke= 0.500 Inlet / Outlet Invert= 888.00' / 887.51' S= 0.0070 '/' Cc= 0.900 n= 0.011 Concrete pipe, straight & clean, Flow Area= 0.79 sf #2 Device 1 888.80'8.0" Vert. Orifice/Grate C= 0.600 #3 Device 1 890.97'8.0" Vert. Orifice/Grate C= 0.600 #4 Discarded 888.00'0.060 in/hr Exfiltration over Surface area Phase-In= 0.01' Discarded OutFlow Max=0.06 cfs @ 101.94 hrs HW=888.01' (Free Discharge) 4=Exfiltration (Exfiltration Controls 0.06 cfs) Primary OutFlow Max=0.00 cfs @ 0.00 hrs HW=888.00' TW=0.00' (Dynamic Tailwater) 1=Culvert ( Controls 0.00 cfs) 2=Orifice/Grate ( Controls 0.00 cfs) 3=Orifice/Grate ( Controls 0.00 cfs) MN-Snowmelt_10d_100yr 10 day Snowmelt Rainfall=7.20", AMC=4Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 269HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Pond 41.1P: South East Inflow Outflow Discarded Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.34 0.32 0.3 0.28 0.26 0.24 0.22 0.2 0.18 0.16 0.14 0.12 0.1 0.08 0.06 0.04 0.02 0 Inflow Area=1.607 ac Peak Elev=888.55' Storage=7,824 cf 0.31 cfs 0.06 cfs 0.06 cfs 0.00 cfs MN-Snowmelt_10d_100yr 10 day Snowmelt Rainfall=7.20", AMC=4Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 270HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Pond 41.2P: South Central Inflow Area = 3.591 ac, 80.17% Impervious, Inflow Depth = 6.96" for 10 day Snowmelt event Inflow = 0.69 cfs @ 121.30 hrs, Volume= 2.083 af Outflow = 0.67 cfs @ 121.50 hrs, Volume= 2.083 af, Atten= 2%, Lag= 11.7 min Discarded = 0.02 cfs @ 9.85 hrs, Volume= 0.551 af Primary = 0.65 cfs @ 121.50 hrs, Volume= 1.532 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 882.68' @ 121.50 hrs Surf.Area= 16,787 sf Storage= 6,110 cf Plug-Flow detention time= 746.1 min calculated for 2.083 af (100% of inflow) Center-of-Mass det. time= 746.2 min ( 8,131.8 - 7,385.6 ) Volume Invert Avail.Storage Storage Description #1 881.50' 11,502 cf Custom Stage Data (Prismatic) Listed below (Recalc) 38,610 cf Overall - 269 cf Embedded = 38,341 cf x 30.0% Voids #2 883.80' 13,322 cf Custom Stage Data (Prismatic) Listed below (Recalc) 33,574 cf Overall - 269 cf Embedded = 33,305 cf x 40.0% Voids #3 881.50' 269 cf 8.0" Round Pipe Storage Inside #1 L= 770.0' #4 883.80' 269 cf 8.0" Round Pipe Storage Inside #2 L= 770.0' 25,362 cf Total Available Storage Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 881.50 16,787 0 0 883.80 16,787 38,610 38,610 Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 883.80 16,787 0 0 885.80 16,787 33,574 33,574 Device Routing Invert Outlet Devices #1 Primary 881.50'18.0" Round Culvert L= 22.0' RCP, sq.cut end projecting, Ke= 0.500 Inlet / Outlet Invert= 881.50' / 881.28' S= 0.0100 '/' Cc= 0.900 n= 0.011 Concrete pipe, straight & clean, Flow Area= 1.77 sf #2 Device 1 882.30'15.0" Vert. Orifice/Grate C= 0.600 #3 Device 1 884.47'18.0" Vert. Orifice/Grate C= 0.600 #4 Discarded 881.50'0.060 in/hr Exfiltration over Surface area Phase-In= 0.01' Discarded OutFlow Max=0.02 cfs @ 9.85 hrs HW=881.51' (Free Discharge) 4=Exfiltration (Exfiltration Controls 0.02 cfs) Primary OutFlow Max=0.65 cfs @ 121.50 hrs HW=882.68' TW=0.00' (Dynamic Tailwater) 1=Culvert (Passes 0.65 cfs of 4.69 cfs potential flow) 2=Orifice/Grate (Orifice Controls 0.65 cfs @ 2.09 fps) 3=Orifice/Grate ( Controls 0.00 cfs) MN-Snowmelt_10d_100yr 10 day Snowmelt Rainfall=7.20", AMC=4Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 271HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Pond 41.2P: South Central Inflow Outflow Discarded Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.75 0.7 0.65 0.6 0.55 0.5 0.45 0.4 0.35 0.3 0.25 0.2 0.15 0.1 0.05 0 Inflow Area=3.591 ac Peak Elev=882.68' Storage=6,110 cf 0.69 cfs 0.67 cfs 0.02 cfs 0.65 cfs MN-Snowmelt_10d_100yr 10 day Snowmelt Rainfall=7.20", AMC=4Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 272HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Pond 41.3P: South West Inflow Area = 0.686 ac, 93.81% Impervious, Inflow Depth = 6.96" for 10 day Snowmelt event Inflow = 0.13 cfs @ 121.30 hrs, Volume= 0.398 af Outflow = 0.03 cfs @ 105.67 hrs, Volume= 0.398 af, Atten= 77%, Lag= 0.0 min Discarded = 0.03 cfs @ 105.67 hrs, Volume= 0.398 af Primary = 0.00 cfs @ 0.00 hrs, Volume= 0.000 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 890.16' @ 134.67 hrs Surf.Area= 22,024 sf Storage= 2,885 cf Plug-Flow detention time= 533.0 min calculated for 0.398 af (100% of inflow) Center-of-Mass det. time= 533.0 min ( 7,918.6 - 7,385.6 ) Volume Invert Avail.Storage Storage Description #1 889.75' 15,091 cf Custom Stage Data (Prismatic) Listed below (Recalc) 50,655 cf Overall - 353 cf Embedded = 50,303 cf x 30.0% Voids #2 892.05' 17,478 cf Custom Stage Data (Prismatic) Listed below (Recalc) 44,048 cf Overall - 353 cf Embedded = 43,695 cf x 40.0% Voids #3 889.75' 353 cf 8.0" Round Pipe Storage Inside #1 L= 1,010.0' #4 892.05' 353 cf 8.0" Round Pipe Storage Inside #2 L= 1,010.0' 33,274 cf Total Available Storage Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 889.75 22,024 0 0 892.05 22,024 50,655 50,655 Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 892.05 22,024 0 0 894.05 22,024 44,048 44,048 Device Routing Invert Outlet Devices #1 Primary 889.75'12.0" Round Culvert L= 45.0' RCP, sq.cut end projecting, Ke= 0.500 Inlet / Outlet Invert= 889.75' / 889.43' S= 0.0071 '/' Cc= 0.900 n= 0.011 Concrete pipe, straight & clean, Flow Area= 0.79 sf #2 Device 1 890.55'8.0" Vert. Orifice/Grate C= 0.600 #3 Device 1 892.72'8.0" Vert. Orifice/Grate C= 0.600 #4 Discarded 889.75'0.060 in/hr Exfiltration over Surface area Phase-In= 0.01' Discarded OutFlow Max=0.03 cfs @ 105.67 hrs HW=889.76' (Free Discharge) 4=Exfiltration (Exfiltration Controls 0.03 cfs) Primary OutFlow Max=0.00 cfs @ 0.00 hrs HW=889.75' TW=0.00' (Dynamic Tailwater) 1=Culvert ( Controls 0.00 cfs) 2=Orifice/Grate ( Controls 0.00 cfs) 3=Orifice/Grate ( Controls 0.00 cfs) MN-Snowmelt_10d_100yr 10 day Snowmelt Rainfall=7.20", AMC=4Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 273HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Pond 41.3P: South West Inflow Outflow Discarded Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.14 0.13 0.12 0.11 0.1 0.09 0.08 0.07 0.06 0.05 0.04 0.03 0.02 0.01 0 Inflow Area=0.686 ac Peak Elev=890.16' Storage=2,885 cf 0.13 cfs 0.03 cfs 0.03 cfs 0.00 cfs MN-Snowmelt_10d_100yr 10 day Snowmelt Rainfall=7.20", AMC=4Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 274HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Pond 44P: Wetland 4 Inflow Area = 24.628 ac, 36.70% Impervious, Inflow Depth = 4.42" for 10 day Snowmelt event Inflow = 3.25 cfs @ 121.50 hrs, Volume= 9.062 af Outflow = 3.25 cfs @ 121.50 hrs, Volume= 9.061 af, Atten= 0%, Lag= 0.5 min Primary = 3.25 cfs @ 121.50 hrs, Volume= 9.061 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 884.30' @ 121.50 hrs Surf.Area= 1,540 sf Storage= 364 cf Plug-Flow detention time= 5.5 min calculated for 9.061 af (100% of inflow) Center-of-Mass det. time= 4.9 min ( 7,594.4 - 7,589.5 ) Volume Invert Avail.Storage Storage Description #1 884.00' 37,633 cf Custom Stage Data (Prismatic) Listed below (Recalc) Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 884.00 870 0 0 884.50 1,980 713 713 885.00 3,500 1,370 2,083 886.00 7,800 5,650 7,733 887.00 14,000 10,900 18,633 888.00 24,000 19,000 37,633 Device Routing Invert Outlet Devices #1 Primary 884.03'Asymmetrical Weir, C= 3.27 Offset (feet) 0.00 51.00 133.60 176.00 217.30 239.00 Elev. (feet) 889.78 886.05 884.03 885.84 889.00 889.78 Primary OutFlow Max=3.25 cfs @ 121.50 hrs HW=884.30' TW=0.00' (Dynamic Tailwater) 1=Asymmetrical Weir (Weir Controls 3.25 cfs @ 0.68 fps) MN-Snowmelt_10d_100yr 10 day Snowmelt Rainfall=7.20", AMC=4Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 275HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Pond 44P: Wetland 4 Inflow Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)3 2 1 0 Inflow Area=24.628 ac Peak Elev=884.30' Storage=364 cf 3.25 cfs 3.25 cfs MN-Snowmelt_10d_100yr 10 day Snowmelt Rainfall=7.20", AMC=4Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 276HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Pond 46P: Triangle Basin Inflow Area = 2.229 ac, 19.60% Impervious, Inflow Depth = 6.96" for 10 day Snowmelt event Inflow = 0.42 cfs @ 121.31 hrs, Volume= 1.293 af Outflow = 0.42 cfs @ 121.37 hrs, Volume= 1.293 af, Atten= 0%, Lag= 3.6 min Discarded = 0.00 cfs @ 6.38 hrs, Volume= 0.052 af Primary = 0.42 cfs @ 121.37 hrs, Volume= 1.241 af Secondary = 0.00 cfs @ 0.00 hrs, Volume= 0.000 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 885.49' @ 121.37 hrs Surf.Area= 1,586 sf Storage= 551 cf Plug-Flow detention time= 121.9 min calculated for 1.293 af (100% of inflow) Center-of-Mass det. time= 121.9 min ( 7,509.9 - 7,388.0 ) Volume Invert Avail.Storage Storage Description #1 884.37' 1,087 cf Sand section (Prismatic) Listed below (Recalc) 3,648 cf Overall - 24 cf Embedded = 3,623 cf x 30.0% Voids #2 884.37' 24 cf 8.0" Round Pipe Storage Inside #1 L= 70.0' #3 886.67' 159 cf Topsoil (Prismatic) Listed below (Recalc) 793 cf Overall x 20.0% Voids #4 887.17' 14,801 cf Open pond (Prismatic) Listed below (Recalc) 16,071 cf Total Available Storage Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 884.37 1,586 0 0 886.67 1,586 3,648 3,648 Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 886.67 1,586 0 0 887.17 1,586 793 793 Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 887.17 1,586 0 0 890.90 6,350 14,801 14,801 Device Routing Invert Outlet Devices #1 Primary 884.37'18.0" Round Culvert L= 125.0' RCP, sq.cut end projecting, Ke= 0.500 Inlet / Outlet Invert= 884.37' / 884.00' S= 0.0030 '/' Cc= 0.900 n= 0.011 Concrete pipe, straight & clean, Flow Area= 1.77 sf #2 Device 1 885.17'12.0" Vert. Orifice/Grate C= 0.600 #3 Device 1 887.41'12.0" Vert. Orifice/Grate C= 0.600 #4 Secondary 890.75'20.0' long x 5.0' breadth Broad-Crested Rectangular Weir Head (feet) 0.20 0.40 0.60 0.80 1.00 1.20 1.40 1.60 1.80 2.00 2.50 3.00 3.50 4.00 4.50 5.00 5.50 Coef. (English) 2.34 2.50 2.70 2.68 2.68 2.66 2.65 2.65 2.65 MN-Snowmelt_10d_100yr 10 day Snowmelt Rainfall=7.20", AMC=4Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 277HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC 2.65 2.67 2.66 2.68 2.70 2.74 2.79 2.88 #5 Discarded 884.37'0.060 in/hr Exfiltration over Surface area Phase-In= 0.01' Discarded OutFlow Max=0.00 cfs @ 6.38 hrs HW=884.38' (Free Discharge) 5=Exfiltration (Exfiltration Controls 0.00 cfs) Primary OutFlow Max=0.42 cfs @ 121.37 hrs HW=885.49' TW=0.00' (Dynamic Tailwater) 1=Culvert (Passes 0.42 cfs of 3.82 cfs potential flow) 2=Orifice/Grate (Orifice Controls 0.42 cfs @ 1.93 fps) 3=Orifice/Grate ( Controls 0.00 cfs) Secondary OutFlow Max=0.00 cfs @ 0.00 hrs HW=884.37' TW=0.00' (Dynamic Tailwater) 4=Broad-Crested Rectangular Weir ( Controls 0.00 cfs) Pond 46P: Triangle Basin Inflow Outflow Discarded Primary Secondary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.45 0.4 0.35 0.3 0.25 0.2 0.15 0.1 0.05 0 Inflow Area=2.229 ac Peak Elev=885.49' Storage=551 cf 0.42 cfs 0.42 cfs 0.00 cfs 0.42 cfs 0.00 cfs MN-Snowmelt_10d_100yr 10 day Snowmelt Rainfall=7.20", AMC=4Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 278HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Pond 47P: Bluff Creek - West Basin Inflow Area = 7.031 ac, 70.52% Impervious, Inflow Depth = 6.96" for 10 day Snowmelt event Inflow = 1.34 cfs @ 121.28 hrs, Volume= 4.078 af Outflow = 0.65 cfs @ 125.36 hrs, Volume= 4.078 af, Atten= 51%, Lag= 245.0 min Discarded = 0.15 cfs @ 54.61 hrs, Volume= 3.249 af Primary = 0.50 cfs @ 125.36 hrs, Volume= 0.829 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 909.42' @ 125.36 hrs Surf.Area= 107,300 sf Storage= 40,330 cf Plug-Flow detention time= 1,532.3 min calculated for 4.078 af (100% of inflow) Center-of-Mass det. time= 1,532.2 min ( 8,916.3 - 7,384.1 ) Volume Invert Avail.Storage Storage Description #1 908.20' 73,521 cf Custom Stage Data (Prismatic) Listed below (Recalc) 246,790 cf Overall - 1,719 cf Embedded = 245,071 cf x 30.0% Voids #2 910.50' 85,152 cf Custom Stage Data (Prismatic) Listed below (Recalc) 214,600 cf Overall - 1,719 cf Embedded = 212,881 cf x 40.0% Voids #3 908.20' 1,719 cf 8.0" Round Pipe Storage Inside #1 L= 4,925.0' #4 910.50' 1,719 cf 8.0" Round Pipe Storage Inside #2 L= 4,925.0' 162,112 cf Total Available Storage Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 908.20 107,300 0 0 910.50 107,300 246,790 246,790 Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 910.50 107,300 0 0 912.50 107,300 214,600 214,600 Device Routing Invert Outlet Devices #1 Primary 908.20'12.0" Round Culvert L= 307.0' RCP, square edge headwall, Ke= 0.500 Inlet / Outlet Invert= 908.20' / 905.13' S= 0.0100 '/' Cc= 0.900 n= 0.011 Concrete pipe, straight & clean, Flow Area= 0.79 sf #2 Device 1 909.00'8.0" Vert. Orifice/Grate C= 0.600 #3 Device 1 911.24'8.0" Vert. Orifice/Grate C= 0.600 #4 Discarded 908.20'0.060 in/hr Exfiltration over Surface area Phase-In= 0.01' Discarded OutFlow Max=0.15 cfs @ 54.61 hrs HW=908.21' (Free Discharge) 4=Exfiltration (Exfiltration Controls 0.15 cfs) Primary OutFlow Max=0.50 cfs @ 125.36 hrs HW=909.42' TW=0.00' (Dynamic Tailwater) 1=Culvert (Passes 0.50 cfs of 3.20 cfs potential flow) 2=Orifice/Grate (Orifice Controls 0.50 cfs @ 2.19 fps) 3=Orifice/Grate ( Controls 0.00 cfs) MN-Snowmelt_10d_100yr 10 day Snowmelt Rainfall=7.20", AMC=4Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 279HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Pond 47P: Bluff Creek - West Basin Inflow Outflow Discarded Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)1 0 Inflow Area=7.031 ac Peak Elev=909.42' Storage=40,330 cf 1.34 cfs 0.65 cfs 0.15 cfs 0.50 cfs MN-Snowmelt_10d_100yr 10 day Snowmelt Rainfall=7.20", AMC=4Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 280HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Pond 48P: Bluff Creek - East Basin Inflow Area = 3.441 ac, 81.34% Impervious, Inflow Depth = 6.96" for 10 day Snowmelt event Inflow = 0.66 cfs @ 121.24 hrs, Volume= 1.996 af Outflow = 0.41 cfs @ 123.67 hrs, Volume= 1.996 af, Atten= 37%, Lag= 145.8 min Discarded = 0.07 cfs @ 53.44 hrs, Volume= 1.574 af Primary = 0.34 cfs @ 123.67 hrs, Volume= 0.422 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 896.48' @ 123.67 hrs Surf.Area= 52,085 sf Storage= 18,259 cf Plug-Flow detention time= 1,463.1 min calculated for 1.996 af (100% of inflow) Center-of-Mass det. time= 1,463.1 min ( 8,844.0 - 7,381.0 ) Volume Invert Avail.Storage Storage Description #1 895.35' 35,688 cf Custom Stage Data (Prismatic) Listed below (Recalc) 119,795 cf Overall - 834 cf Embedded = 118,961 cf x 30.0% Voids #2 897.65' 41,334 cf Custom Stage Data (Prismatic) Listed below (Recalc) 104,170 cf Overall - 834 cf Embedded = 103,336 cf x 40.0% Voids #3 895.35' 834 cf 8.0" Round Pipe Storage Inside #1 L= 2,390.0' #4 897.65' 834 cf 8.0" Round Pipe Storage Inside #2 L= 2,390.0' 78,691 cf Total Available Storage Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 895.35 52,085 0 0 897.65 52,085 119,795 119,795 Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 897.65 52,085 0 0 899.65 52,085 104,170 104,170 Device Routing Invert Outlet Devices #1 Primary 895.35'12.0" Round Culvert L= 637.0' RCP, square edge headwall, Ke= 0.500 Inlet / Outlet Invert= 895.35' / 888.98' S= 0.0100 '/' Cc= 0.900 n= 0.011 Concrete pipe, straight & clean, Flow Area= 0.79 sf #2 Device 1 896.15'8.0" Vert. Orifice/Grate C= 0.600 #3 Device 1 898.39'8.0" Vert. Orifice/Grate C= 0.600 #4 Discarded 895.35'0.060 in/hr Exfiltration over Surface area Phase-In= 0.01' Discarded OutFlow Max=0.07 cfs @ 53.44 hrs HW=895.36' (Free Discharge) 4=Exfiltration (Exfiltration Controls 0.07 cfs) Primary OutFlow Max=0.34 cfs @ 123.67 hrs HW=896.48' TW=0.00' (Dynamic Tailwater) 1=Culvert (Passes 0.34 cfs of 3.00 cfs potential flow) 2=Orifice/Grate (Orifice Controls 0.34 cfs @ 1.96 fps) 3=Orifice/Grate ( Controls 0.00 cfs) MN-Snowmelt_10d_100yr 10 day Snowmelt Rainfall=7.20", AMC=4Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 281HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Pond 48P: Bluff Creek - East Basin Inflow Outflow Discarded Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.7 0.65 0.6 0.55 0.5 0.45 0.4 0.35 0.3 0.25 0.2 0.15 0.1 0.05 0 Inflow Area=3.441 ac Peak Elev=896.48' Storage=18,259 cf 0.66 cfs 0.41 cfs 0.07 cfs 0.34 cfs MN-Snowmelt_10d_100yr 10 day Snowmelt Rainfall=7.20", AMC=4Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 282HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Pond 48P(2): Bluff Creek - East Basin Inflow Area = 2.152 ac, 68.04% Impervious, Inflow Depth = 6.96" for 10 day Snowmelt event Inflow = 0.41 cfs @ 121.30 hrs, Volume= 1.248 af Outflow = 0.38 cfs @ 121.83 hrs, Volume= 1.248 af, Atten= 7%, Lag= 31.7 min Discarded = 0.03 cfs @ 26.46 hrs, Volume= 0.779 af Primary = 0.35 cfs @ 121.83 hrs, Volume= 0.470 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 896.89' @ 121.83 hrs Surf.Area= 24,429 sf Storage= 8,596 cf Plug-Flow detention time= 1,331.5 min calculated for 1.248 af (100% of inflow) Center-of-Mass det. time= 1,331.6 min ( 8,717.2 - 7,385.6 ) Volume Invert Avail.Storage Storage Description #1 895.75' 16,739 cf Custom Stage Data (Prismatic) Listed below (Recalc) 56,187 cf Overall - 391 cf Embedded = 55,795 cf x 30.0% Voids #2 898.05' 19,387 cf Custom Stage Data (Prismatic) Listed below (Recalc) 48,858 cf Overall - 391 cf Embedded = 48,467 cf x 40.0% Voids #3 895.75' 391 cf 8.0" Round Pipe Storage Inside #1 L= 1,121.0' #4 898.05' 391 cf 8.0" Round Pipe Storage Inside #2 L= 1,121.0' 36,908 cf Total Available Storage Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 895.75 24,429 0 0 898.05 24,429 56,187 56,187 Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 898.05 24,429 0 0 900.05 24,429 48,858 48,858 Device Routing Invert Outlet Devices #1 Primary 895.75'8.0" Round Culvert L= 50.0' RCP, square edge headwall, Ke= 0.500 Inlet / Outlet Invert= 895.75' / 895.25' S= 0.0100 '/' Cc= 0.900 n= 0.011 Concrete pipe, straight & clean, Flow Area= 0.35 sf #2 Device 1 896.55'8.0" Vert. Orifice/Grate C= 0.600 #3 Device 1 898.79'8.0" Vert. Orifice/Grate C= 0.600 #4 Discarded 895.75'0.060 in/hr Exfiltration over Surface area Phase-In= 0.01' Discarded OutFlow Max=0.03 cfs @ 26.46 hrs HW=895.76' (Free Discharge) 4=Exfiltration (Exfiltration Controls 0.03 cfs) Primary OutFlow Max=0.35 cfs @ 121.83 hrs HW=896.89' TW=0.00' (Dynamic Tailwater) 1=Culvert (Passes 0.35 cfs of 1.49 cfs potential flow) 2=Orifice/Grate (Orifice Controls 0.35 cfs @ 1.97 fps) 3=Orifice/Grate ( Controls 0.00 cfs) MN-Snowmelt_10d_100yr 10 day Snowmelt Rainfall=7.20", AMC=4Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 283HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Pond 48P(2): Bluff Creek - East Basin Inflow Outflow Discarded Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)0.46 0.44 0.42 0.4 0.38 0.36 0.34 0.32 0.3 0.28 0.26 0.24 0.22 0.2 0.18 0.16 0.14 0.12 0.1 0.08 0.06 0.04 0.02 0 Inflow Area=2.152 ac Peak Elev=896.89' Storage=8,596 cf 0.41 cfs 0.38 cfs 0.03 cfs 0.35 cfs MN-Snowmelt_10d_100yr 10 day Snowmelt Rainfall=7.20", AMC=4Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 284HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Pond 71P: Interlachen [87] Warning: Oscillations may require smaller dt or Finer Routing (severity=15) Inflow Area = 30.860 ac, 27.80% Impervious, Inflow Depth = 6.97" for 10 day Snowmelt event Inflow = 5.88 cfs @ 121.28 hrs, Volume= 17.924 af Outflow = 4.65 cfs @ 121.78 hrs, Volume= 17.893 af, Atten= 21%, Lag= 29.7 min Primary = 4.65 cfs @ 121.78 hrs, Volume= 17.893 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 871.35' @ 135.90 hrs Surf.Area= 54,804 sf Storage= 70,924 cf Plug-Flow detention time= 663.8 min calculated for 17.893 af (100% of inflow) Center-of-Mass det. time= 651.8 min ( 8,031.2 - 7,379.4 ) Volume Invert Avail.Storage Storage Description #1 870.00' 381,460 cf Custom Stage Data (Prismatic) Listed below (Recalc) Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 870.00 50,570 0 0 872.00 56,860 107,430 107,430 875.00 74,330 196,785 304,215 876.00 80,160 77,245 381,460 Device Routing Invert Outlet Devices #1 Primary 870.00'24.0" Round Culvert L= 33.0' RCP, square edge headwall, Ke= 0.500 Inlet / Outlet Invert= 870.00' / 869.67' S= 0.0100 '/' Cc= 0.900 n= 0.012, Flow Area= 3.14 sf #2 Device 1 866.61'24.0" Round Culvert L= 21.0' RCP, end-section conforming to fill, Ke= 0.500 Inlet / Outlet Invert= 866.50' / 866.61' S= -0.0052 '/' Cc= 0.900 n= 0.012, Flow Area= 3.14 sf Primary OutFlow Max=4.64 cfs @ 121.78 hrs HW=871.23' TW=870.92' (Dynamic Tailwater) 1=Culvert (Outlet Controls 4.64 cfs @ 3.28 fps) 2=Culvert (Passes 4.64 cfs of 8.47 cfs potential flow) MN-Snowmelt_10d_100yr 10 day Snowmelt Rainfall=7.20", AMC=4Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 285HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Pond 71P: Interlachen Inflow Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)6 5 4 3 2 1 0 Inflow Area=30.860 ac Peak Elev=871.35' Storage=70,924 cf 5.88 cfs 4.65 cfs MN-Snowmelt_10d_100yr 10 day Snowmelt Rainfall=7.20", AMC=4Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 286HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Pond 72P: South MNDOT M9 Wetland Inflow Area = 115.998 ac, 28.75% Impervious, Inflow Depth > 5.55" for 10 day Snowmelt event Inflow = 17.17 cfs @ 121.52 hrs, Volume= 53.696 af Outflow = 4.36 cfs @ 136.68 hrs, Volume= 52.679 af, Atten= 75%, Lag= 909.6 min Primary = 4.36 cfs @ 136.68 hrs, Volume= 52.679 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 871.33' @ 136.68 hrs Surf.Area= 503,685 sf Storage= 785,839 cf Plug-Flow detention time= 2,613.5 min calculated for 52.678 af (98% of inflow) Center-of-Mass det. time= 2,473.3 min ( 10,150.6 - 7,677.3 ) Volume Invert Avail.Storage Storage Description #1 869.50' 2,891,990 cf Custom Stage Data (Prismatic) Listed below (Recalc) Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 869.50 214,970 0 0 870.00 433,070 162,010 162,010 871.00 489,600 461,335 623,345 872.00 532,650 511,125 1,134,470 875.00 639,030 1,757,520 2,891,990 Device Routing Invert Outlet Devices #1 Primary 869.00'18.0" Round Culvert L= 276.0' RCP, square edge headwall, Ke= 0.500 Inlet / Outlet Invert= 869.00' / 866.93' S= 0.0075 '/' Cc= 0.900 n= 0.013 Concrete pipe, straight & clean, Flow Area= 1.77 sf #2 Device 1 869.50'12.0" Vert. Orifice/Grate C= 0.600 #3 Device 2 869.36'18.0" Round Culvert L= 172.0' RCP, end-section conforming to fill, Ke= 0.500 Inlet / Outlet Invert= 868.50' / 869.36' S= -0.0050 '/' Cc= 0.900 n= 0.013 Concrete pipe, straight & clean, Flow Area= 1.77 sf Primary OutFlow Max=4.36 cfs @ 136.68 hrs HW=871.33' (Free Discharge) 1=Culvert (Passes 4.36 cfs of 9.43 cfs potential flow) 2=Orifice/Grate (Orifice Controls 4.36 cfs @ 5.55 fps) 3=Culvert (Passes 4.36 cfs of 7.58 cfs potential flow) MN-Snowmelt_10d_100yr 10 day Snowmelt Rainfall=7.20", AMC=4Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 287HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Pond 72P: South MNDOT M9 Wetland Inflow Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 Inflow Area=115.998 ac Peak Elev=871.33' Storage=785,839 cf 17.17 cfs 4.36 cfs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 288HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Time span=0.00-360.00 hrs, dt=0.01 hrs, 36001 points Runoff by SCS TR-20 method, UH=SCS, Weighted-Q Reach routing by Dyn-Stor-Ind method - Pond routing by Dyn-Stor-Ind method Runoff Area=163,468 sf 81.66% Impervious Runoff Depth=3.71"Subcatchment 40.1S: South - East Tc=10.0 min CN=WQ Runoff=18.90 cfs 1.160 af Runoff Area=200,567 sf 76.19% Impervious Runoff Depth=3.61"Subcatchment 40.2S: South - Central Tc=10.0 min CN=WQ Runoff=22.68 cfs 1.387 af Runoff Area=228,145 sf 69.55% Impervious Runoff Depth=3.50"Subcatchment 40.3S: South - West Tc=10.0 min CN=WQ Runoff=25.10 cfs 1.526 af Runoff Area=69,984 sf 85.30% Impervious Runoff Depth=3.77"Subcatchment 41.1S: South - East Tc=10.0 min CN=WQ Runoff=8.21 cfs 0.505 af Runoff Area=156,419 sf 80.17% Impervious Runoff Depth=3.68"Subcatchment 41.2S: South - Central Tc=10.0 min CN=WQ Runoff=17.98 cfs 1.102 af Runoff Area=29,884 sf 93.81% Impervious Runoff Depth=3.93"Subcatchment 41.3S: South - west Tc=10.0 min CN=WQ Runoff=3.62 cfs 0.224 af Runoff Area=41,871 sf 0.00% Impervious Runoff Depth=2.27"Subcatchment 42.1S: South Tc=5.0 min CN=80 Runoff=4.20 cfs 0.182 af Runoff Area=24,525 sf 0.00% Impervious Runoff Depth=2.27"Subcatchment 42.2S: Southeast Tc=5.0 min CN=80 Runoff=2.46 cfs 0.106 af Runoff Area=3.222 ac 0.00% Impervious Runoff Depth=0.64"Subcatchment 43.1S: East Woods Flow Length=530' Tc=15.2 min CN=55 Runoff=1.73 cfs 0.172 af Runoff Area=1.862 ac 0.00% Impervious Runoff Depth=0.64"Subcatchment 43.2S: Northeast Woods Flow Length=623' Tc=19.5 min CN=55 Runoff=0.90 cfs 0.100 af Runoff Area=441,314 sf 0.00% Impervious Runoff Depth=0.64"Subcatchment 44S: North Woods Flow Length=599' Tc=16.5 min CN=55 Runoff=5.26 cfs 0.541 af Runoff Area=206,303 sf 65.51% Impervious Runoff Depth=3.37"Subcatchment 45S: Central - West Tc=10.0 min CN=WQ Runoff=22.68 cfs 1.330 af Runoff Area=97,082 sf 19.60% Impervious Runoff Depth=2.61"Subcatchment 46S: South Townhomes Flow Length=701' Tc=12.6 min CN=WQ Runoff=7.61 cfs 0.485 af Runoff Area=2.295 ac 80.87% Impervious Runoff Depth=3.70"Subcatchment 47S: Bluff Creek Blvd - West Tc=5.0 min CN=WQ Runoff=14.61 cfs 0.707 af Runoff Area=93,721 sf 68.04% Impervious Runoff Depth=3.47"Subcatchment 48.1S: Direct to 48P (2) Tc=10.0 min CN=WQ Runoff=10.25 cfs 0.622 af Runoff Area=3.441 ac 81.34% Impervious Runoff Depth=3.70"Subcatchment 48S: Bluff Creek Blvd - East Tc=5.0 min CN=WQ Runoff=21.95 cfs 1.062 af MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 289HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Runoff Area=2.080 ac 0.00% Impervious Runoff Depth=2.61"Subcatchment 71-1S: Interlacn Subcatch 1 Tc=7.0 min CN=84 Runoff=9.39 cfs 0.452 af Runoff Area=1.160 ac 100.00% Impervious Runoff Depth=4.27"Subcatchment 71-2S: Interlacn Subcatch 2 Tc=7.0 min CN=100 Runoff=7.24 cfs 0.413 af Runoff Area=0.810 ac 0.00% Impervious Runoff Depth=3.59"Subcatchment 72S: 6_Temp Tc=9.0 min CN=94 Runoff=4.32 cfs 0.242 af Runoff Area=2.360 ac 100.00% Impervious Runoff Depth=4.03"Subcatchment 73S: N68 Tc=7.0 min CN=98 Runoff=14.62 cfs 0.793 af Runoff Area=1.020 ac 0.00% Impervious Runoff Depth=3.18"Subcatchment 74S: 5_Temp Tc=9.0 min CN=90 Runoff=4.98 cfs 0.270 af Runoff Area=3.010 ac 100.00% Impervious Runoff Depth=4.03"Subcatchment 75S: 3225 Tc=7.0 min CN=98 Runoff=18.64 cfs 1.012 af Runoff Area=8.310 ac 0.00% Impervious Runoff Depth=2.27"Subcatchment 76S: 3236 Tc=14.0 min CN=80 Runoff=24.12 cfs 1.570 af Runoff Area=0.950 ac 0.00% Impervious Runoff Depth=2.52"Subcatchment 77S: 3238 Tc=7.0 min CN=83 Runoff=4.15 cfs 0.200 af Runoff Area=0.630 ac 0.00% Impervious Runoff Depth=3.28"Subcatchment 78S: 3243 Tc=7.0 min CN=91 Runoff=3.47 cfs 0.172 af Runoff Area=2.050 ac 100.00% Impervious Runoff Depth=4.03"Subcatchment 79S: 3245 Tc=7.0 min CN=98 Runoff=12.70 cfs 0.689 af Runoff Area=0.350 ac 0.00% Impervious Runoff Depth=3.18"Subcatchment 80S: 3250 Tc=7.0 min CN=90 Runoff=1.88 cfs 0.093 af Runoff Area=5.950 ac 0.00% Impervious Runoff Depth=1.95"Subcatchment 81S: 3343 Tc=19.0 min CN=76 Runoff=12.62 cfs 0.966 af Runoff Area=1.480 ac 0.00% Impervious Runoff Depth=2.10"Subcatchment 82S: 3345 Tc=7.0 min CN=78 Runoff=5.38 cfs 0.260 af Runoff Area=0.700 ac 0.00% Impervious Runoff Depth=2.89"Subcatchment 83S: 3348 Tc=7.0 min CN=87 Runoff=3.47 cfs 0.168 af Runoff Area=2.100 ac 0.00% Impervious Runoff Depth=2.18"Subcatchment 84S: SE12 Tc=11.0 min CN=79 Runoff=6.58 cfs 0.382 af Runoff Area=4.530 ac 0.00% Impervious Runoff Depth=1.45"Subcatchment 85S: 1S Tc=15.0 min CN=69 Runoff=7.68 cfs 0.546 af Runoff Area=5.800 ac 0.00% Impervious Runoff Depth=1.45"Subcatchment 86S: 2S Tc=25.0 min CN=69 Runoff=7.59 cfs 0.699 af MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 290HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Runoff Area=21.638 ac 0.00% Impervious Runoff Depth=1.95"Subcatchment 87S: M9 Tc=29.0 min CN=76 Runoff=36.74 cfs 3.512 af Inflow=29.76 cfs 6.997 afReach 40R: South Drainage Outflow=29.76 cfs 6.997 af Inflow=9.40 cfs 1.725 afReach 42.1R: South Outflow=9.40 cfs 1.725 af Inflow=5.10 cfs 1.970 afReach 42.2R: Southeast Outflow=5.10 cfs 1.970 af Inflow=14.22 cfs 3.130 afReach 44R: Wetland 4 Channel Outflow=14.22 cfs 3.130 af Inflow=8.10 cfs 2.490 afReach 48R: Development to Wetland 4 Outflow=8.10 cfs 2.490 af Avg. Flow Depth=2.00' Max Vel=7.68 fps Inflow=23.56 cfs 1.306 afReach 72R: N68 24.0" Round Pipe n=0.012 L=63.0' S=0.0075 '/' Capacity=21.17 cfs Outflow=22.07 cfs 1.306 af Peak Elev=895.78' Storage=32,356 cf Inflow=18.90 cfs 1.160 afPond 40.1P: South East Discarded=0.07 cfs 0.449 af Primary=1.63 cfs 0.711 af Outflow=1.70 cfs 1.160 af Peak Elev=896.46' Storage=42,281 cf Inflow=22.68 cfs 1.387 afPond 40.2P: South Central Discarded=0.13 cfs 0.847 af Primary=0.96 cfs 0.540 af Outflow=1.09 cfs 1.387 af Peak Elev=899.84' Storage=43,149 cf Inflow=25.10 cfs 1.526 afPond 40.3P: South Discarded=0.17 cfs 0.549 af Primary=1.84 cfs 0.977 af Outflow=2.01 cfs 1.526 af Peak Elev=889.12' Storage=15,575 cf Inflow=8.21 cfs 0.505 afPond 41.1P: South East Discarded=0.06 cfs 0.375 af Primary=0.31 cfs 0.131 af Outflow=0.37 cfs 0.505 af Peak Elev=884.54' Storage=16,913 cf Inflow=17.98 cfs 1.102 afPond 41.2P: South Central Discarded=0.05 cfs 0.147 af Primary=7.54 cfs 0.956 af Outflow=7.59 cfs 1.102 af Peak Elev=890.76' Storage=6,905 cf Inflow=3.62 cfs 0.224 afPond 41.3P: South West Discarded=0.03 cfs 0.176 af Primary=0.14 cfs 0.048 af Outflow=0.17 cfs 0.224 af Peak Elev=884.51' Storage=730 cf Inflow=13.35 cfs 3.031 afPond 44P: Wetland 4 Outflow=13.34 cfs 3.031 af Peak Elev=887.68' Storage=2,243 cf Inflow=7.61 cfs 0.485 afPond 46P: Triangle Basin Discarded=0.01 cfs 0.014 af Primary=5.66 cfs 0.472 af Secondary=0.00 cfs 0.000 af Outflow=5.67 cfs 0.485 af Peak Elev=910.09' Storage=62,149 cf Inflow=33.97 cfs 2.037 afPond 47P: Bluff Creek - West Basin Discarded=0.15 cfs 0.996 af Primary=1.47 cfs 1.041 af Outflow=1.61 cfs 2.037 af Peak Elev=897.22' Storage=29,788 cf Inflow=21.95 cfs 1.062 afPond 48P: Bluff Creek - East Basin Discarded=0.07 cfs 0.456 af Primary=1.44 cfs 0.607 af Outflow=1.51 cfs 1.062 af MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 291HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Peak Elev=897.82' Storage=15,416 cf Inflow=10.25 cfs 0.622 afPond 48P(2): Bluff Creek - East Basin Discarded=0.03 cfs 0.207 af Primary=1.62 cfs 0.415 af Outflow=1.66 cfs 0.622 af Peak Elev=872.91' Storage=161,551 cf Inflow=110.95 cfs 7.300 afPond 71P: Interlachen Outflow=20.63 cfs 7.288 af Peak Elev=871.05' Storage=646,427 cf Inflow=99.95 cfs 19.424 afPond 72P: South MNDOT M9 Wetland Outflow=3.87 cfs 19.111 af Total Runoff Area = 115.998 ac Runoff Volume = 23.651 af Average Runoff Depth = 2.45" 71.25% Pervious = 82.651 ac 28.75% Impervious = 33.347 ac MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 292HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 40.1S: South - East Runoff = 18.90 cfs @ 12.13 hrs, Volume= 1.160 af, Depth= 3.71" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Area (sf) CN Description 29,976 80 >75% Grass cover, Good, HSG D 133,492 98 Paved parking, HSG D 163,468 Weighted Average 29,976 80 18.34% Pervious Area 133,492 98 81.66% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 10.0 Direct Entry, Subcatchment 40.1S: South - East Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Runoff Area=163,468 sf Runoff Volume=1.160 af Runoff Depth=3.71" Tc=10.0 min CN=WQ 18.90 cfs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 293HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 40.2S: South - Central Runoff = 22.68 cfs @ 12.13 hrs, Volume= 1.387 af, Depth= 3.61" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Area (sf) CN Description 47,748 80 >75% Grass cover, Good, HSG D 152,819 98 Paved parking, HSG D 200,567 Weighted Average 47,748 80 23.81% Pervious Area 152,819 98 76.19% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 10.0 Direct Entry, Subcatchment 40.2S: South - Central Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Runoff Area=200,567 sf Runoff Volume=1.387 af Runoff Depth=3.61" Tc=10.0 min CN=WQ 22.68 cfs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 294HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 40.3S: South - West Runoff = 25.10 cfs @ 12.13 hrs, Volume= 1.526 af, Depth= 3.50" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Area (sf) CN Description 69,464 80 >75% Grass cover, Good, HSG D * 158,681 98 Paved parking & roofs, HSG D 228,145 Weighted Average 69,464 80 30.45% Pervious Area 158,681 98 69.55% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 10.0 Direct Entry, Subcatchment 40.3S: South - West Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)28 26 24 22 20 18 16 14 12 10 8 6 4 2 0 MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Runoff Area=228,145 sf Runoff Volume=1.526 af Runoff Depth=3.50" Tc=10.0 min CN=WQ 25.10 cfs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 295HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 41.1S: South - East Runoff = 8.21 cfs @ 12.13 hrs, Volume= 0.505 af, Depth= 3.77" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Area (sf) CN Description 10,289 80 >75% Grass cover, Good, HSG D 59,695 98 Paved parking, HSG D 69,984 Weighted Average 10,289 80 14.70% Pervious Area 59,695 98 85.30% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 10.0 Direct Entry, Subcatchment 41.1S: South - East Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)9 8 7 6 5 4 3 2 1 0 MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Runoff Area=69,984 sf Runoff Volume=0.505 af Runoff Depth=3.77" Tc=10.0 min CN=WQ 8.21 cfs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 296HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 41.2S: South - Central Runoff = 17.98 cfs @ 12.13 hrs, Volume= 1.102 af, Depth= 3.68" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Area (sf) CN Description 31,015 80 >75% Grass cover, Good, HSG D 125,404 98 Paved parking, HSG D 156,419 Weighted Average 31,015 80 19.83% Pervious Area 125,404 98 80.17% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 10.0 Direct Entry, Subcatchment 41.2S: South - Central Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Runoff Area=156,419 sf Runoff Volume=1.102 af Runoff Depth=3.68" Tc=10.0 min CN=WQ 17.98 cfs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 297HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 41.3S: South - west Runoff = 3.62 cfs @ 12.13 hrs, Volume= 0.224 af, Depth= 3.93" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Area (sf) CN Description 1,850 80 >75% Grass cover, Good, HSG D 28,034 98 Paved parking, HSG D 29,884 Weighted Average 1,850 80 6.19% Pervious Area 28,034 98 93.81% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 10.0 Direct Entry, Subcatchment 41.3S: South - west Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)4 3 2 1 0 MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Runoff Area=29,884 sf Runoff Volume=0.224 af Runoff Depth=3.93" Tc=10.0 min CN=WQ 3.62 cfs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 298HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 42.1S: South Runoff = 4.20 cfs @ 12.08 hrs, Volume= 0.182 af, Depth= 2.27" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Area (sf) CN Description 41,871 80 >75% Grass cover, Good, HSG D 41,871 80 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 5.0 Direct Entry, Subcatchment 42.1S: South Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)4 3 2 1 0 MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Runoff Area=41,871 sf Runoff Volume=0.182 af Runoff Depth=2.27" Tc=5.0 min CN=80 4.20 cfs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 299HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 42.2S: Southeast Runoff = 2.46 cfs @ 12.08 hrs, Volume= 0.106 af, Depth= 2.27" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Area (sf) CN Description 24,525 80 >75% Grass cover, Good, HSG D 24,525 80 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 5.0 Direct Entry, Subcatchment 42.2S: Southeast Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)2 1 0 MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Runoff Area=24,525 sf Runoff Volume=0.106 af Runoff Depth=2.27" Tc=5.0 min CN=80 2.46 cfs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 300HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 43.1S: East Woods Runoff = 1.73 cfs @ 12.27 hrs, Volume= 0.172 af, Depth= 0.64" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Area (ac) CN Description 3.222 55 Woods, Good, HSG B 3.222 55 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 11.1 75 0.0670 0.11 Sheet Flow, Woods: Light underbrush n= 0.400 P2= 2.87" 4.1 455 0.1380 1.86 Shallow Concentrated Flow, Woodland Kv= 5.0 fps 15.2 530 Total Subcatchment 43.1S: East Woods Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)1 0 MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Runoff Area=3.222 ac Runoff Volume=0.172 af Runoff Depth=0.64" Flow Length=530' Tc=15.2 min CN=55 1.73 cfs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 301HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 43.2S: Northeast Woods Runoff = 0.90 cfs @ 12.35 hrs, Volume= 0.100 af, Depth= 0.64" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Area (ac) CN Description 1.862 55 Woods, Good, HSG B 1.862 55 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 14.2 100 0.0650 0.12 Sheet Flow, Woods: Light underbrush n= 0.400 P2= 2.87" 5.3 523 0.1080 1.64 Shallow Concentrated Flow, Woodland Kv= 5.0 fps 19.5 623 Total Subcatchment 43.2S: Northeast Woods Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)1 0 MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Runoff Area=1.862 ac Runoff Volume=0.100 af Runoff Depth=0.64" Flow Length=623' Tc=19.5 min CN=55 0.90 cfs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 302HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 44S: North Woods Runoff = 5.26 cfs @ 12.30 hrs, Volume= 0.541 af, Depth= 0.64" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Area (sf) CN Description 441,314 55 Woods, Good, HSG B 441,314 55 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 11.2 75 0.0660 0.11 Sheet Flow, Woods: Light underbrush n= 0.400 P2= 2.87" 5.3 524 0.1090 1.65 Shallow Concentrated Flow, Woodland Kv= 5.0 fps 16.5 599 Total Subcatchment 44S: North Woods Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)5 4 3 2 1 0 MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Runoff Area=441,314 sf Runoff Volume=0.541 af Runoff Depth=0.64" Flow Length=599' Tc=16.5 min CN=55 5.26 cfs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 303HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 45S: Central - West Runoff = 22.68 cfs @ 12.13 hrs, Volume= 1.330 af, Depth= 3.37" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Area (sf) CN Description 159,000 95 Urban commercial, 85% imp, HSG D 47,303 80 >75% Grass cover, Good, HSG D 206,303 Weighted Average 71,153 79 34.49% Pervious Area 135,150 98 65.51% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 10.0 Direct Entry, Subcatchment 45S: Central - West Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Runoff Area=206,303 sf Runoff Volume=1.330 af Runoff Depth=3.37" Tc=10.0 min CN=WQ 22.68 cfs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 304HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 46S: South Townhomes Runoff = 7.61 cfs @ 12.17 hrs, Volume= 0.485 af, Depth= 2.61" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Area (sf) CN Description 19,025 98 Paved parking, HSG D 78,057 80 >75% Grass cover, Good, HSG D 97,082 Weighted Average 78,057 80 80.40% Pervious Area 19,025 98 19.60% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 11.7 92 0.0320 0.13 Sheet Flow, Grass: Dense n= 0.240 P2= 2.87" 0.9 609 0.5200 10.82 Shallow Concentrated Flow, Grassed Waterway Kv= 15.0 fps 12.6 701 Total Subcatchment 46S: South Townhomes Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)8 7 6 5 4 3 2 1 0 MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Runoff Area=97,082 sf Runoff Volume=0.485 af Runoff Depth=2.61" Flow Length=701' Tc=12.6 min CN=WQ 7.61 cfs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 305HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 47S: Bluff Creek Blvd - West Runoff = 14.61 cfs @ 12.07 hrs, Volume= 0.707 af, Depth= 3.70" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Area (ac) CN Description 0.439 80 >75% Grass cover, Good, HSG D 1.856 98 Paved roads w/curbs & sewers, HSG D 2.295 Weighted Average 0.439 80 19.13% Pervious Area 1.856 98 80.87% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 5.0 Direct Entry, Subcatchment 47S: Bluff Creek Blvd - West Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Runoff Area=2.295 ac Runoff Volume=0.707 af Runoff Depth=3.70" Tc=5.0 min CN=WQ 14.61 cfs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 306HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 48.1S: Direct to 48P (2) Runoff = 10.25 cfs @ 12.13 hrs, Volume= 0.622 af, Depth= 3.47" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Area (sf) CN Description 29,956 80 >75% Grass cover, Good, HSG D 63,765 98 Paved parking, HSG D 93,721 Weighted Average 29,956 80 31.96% Pervious Area 63,765 98 68.04% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 10.0 Direct Entry, Subcatchment 48.1S: Direct to 48P (2) Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)11 10 9 8 7 6 5 4 3 2 1 0 MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Runoff Area=93,721 sf Runoff Volume=0.622 af Runoff Depth=3.47" Tc=10.0 min CN=WQ 10.25 cfs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 307HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 48S: Bluff Creek Blvd - East Runoff = 21.95 cfs @ 12.07 hrs, Volume= 1.062 af, Depth= 3.70" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Area (ac) CN Description 0.642 80 >75% Grass cover, Good, HSG D 2.799 98 Paved roads w/curbs & sewers, HSG D 3.441 Weighted Average 0.642 80 18.66% Pervious Area 2.799 98 81.34% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 5.0 Direct Entry, Subcatchment 48S: Bluff Creek Blvd - East Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Runoff Area=3.441 ac Runoff Volume=1.062 af Runoff Depth=3.70" Tc=5.0 min CN=WQ 21.95 cfs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 308HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 71-1S: Interlacn Subcatch 1 Runoff = 9.39 cfs @ 12.10 hrs, Volume= 0.452 af, Depth= 2.61" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Area (ac) CN Description * 2.080 84 Weoghted 2.080 84 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 7.0 Direct Entry, Subcatchment 71-1S: Interlacn Subcatch 1 Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)10 9 8 7 6 5 4 3 2 1 0 MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Runoff Area=2.080 ac Runoff Volume=0.452 af Runoff Depth=2.61" Tc=7.0 min CN=84 9.39 cfs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 309HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 71-2S: Interlacn Subcatch 2 Runoff = 7.24 cfs @ 12.09 hrs, Volume= 0.413 af, Depth= 4.27" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Area (ac) CN Description * 1.160 100 1.160 100 100.00% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 7.0 Direct Entry, Subcatchment 71-2S: Interlacn Subcatch 2 Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)8 7 6 5 4 3 2 1 0 MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Runoff Area=1.160 ac Runoff Volume=0.413 af Runoff Depth=4.27" Tc=7.0 min CN=100 7.24 cfs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 310HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 72S: 6_Temp Runoff = 4.32 cfs @ 12.12 hrs, Volume= 0.242 af, Depth= 3.59" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Area (ac) CN Description * 0.810 94 Weighted 0.810 94 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 9.0 Direct Entry, Subcatchment 72S: 6_Temp Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)4 3 2 1 0 MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Runoff Area=0.810 ac Runoff Volume=0.242 af Runoff Depth=3.59" Tc=9.0 min CN=94 4.32 cfs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 311HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 73S: N68 Runoff = 14.62 cfs @ 12.09 hrs, Volume= 0.793 af, Depth= 4.03" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Area (ac) CN Description * 2.360 98 Weighted 2.360 98 100.00% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 7.0 Direct Entry, Subcatchment 73S: N68 Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Runoff Area=2.360 ac Runoff Volume=0.793 af Runoff Depth=4.03" Tc=7.0 min CN=98 14.62 cfs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 312HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 74S: 5_Temp Runoff = 4.98 cfs @ 12.12 hrs, Volume= 0.270 af, Depth= 3.18" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Area (ac) CN Description * 1.020 90 1.020 90 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 9.0 Direct Entry, Subcatchment 74S: 5_Temp Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)5 4 3 2 1 0 MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Runoff Area=1.020 ac Runoff Volume=0.270 af Runoff Depth=3.18" Tc=9.0 min CN=90 4.98 cfs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 313HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 75S: 3225 Runoff = 18.64 cfs @ 12.09 hrs, Volume= 1.012 af, Depth= 4.03" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Area (ac) CN Description * 3.010 98 Weighted 3.010 98 100.00% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 7.0 Direct Entry, Subcatchment 75S: 3225 Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Runoff Area=3.010 ac Runoff Volume=1.012 af Runoff Depth=4.03" Tc=7.0 min CN=98 18.64 cfs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 314HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 76S: 3236 Runoff = 24.12 cfs @ 12.19 hrs, Volume= 1.570 af, Depth= 2.27" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Area (ac) CN Description * 8.310 80 Weighted 8.310 80 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 14.0 Direct Entry, Subcatchment 76S: 3236 Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)26 24 22 20 18 16 14 12 10 8 6 4 2 0 MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Runoff Area=8.310 ac Runoff Volume=1.570 af Runoff Depth=2.27" Tc=14.0 min CN=80 24.12 cfs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 315HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 77S: 3238 Runoff = 4.15 cfs @ 12.10 hrs, Volume= 0.200 af, Depth= 2.52" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Area (ac) CN Description * 0.950 83 Weighted 0.950 83 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 7.0 Direct Entry, Subcatchment 77S: 3238 Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)4 3 2 1 0 MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Runoff Area=0.950 ac Runoff Volume=0.200 af Runoff Depth=2.52" Tc=7.0 min CN=83 4.15 cfs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 316HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 78S: 3243 Runoff = 3.47 cfs @ 12.10 hrs, Volume= 0.172 af, Depth= 3.28" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Area (ac) CN Description * 0.630 91 Weighted 0.630 91 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 7.0 Direct Entry, Subcatchment 78S: 3243 Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)3 2 1 0 MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Runoff Area=0.630 ac Runoff Volume=0.172 af Runoff Depth=3.28" Tc=7.0 min CN=91 3.47 cfs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 317HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 79S: 3245 Runoff = 12.70 cfs @ 12.09 hrs, Volume= 0.689 af, Depth= 4.03" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Area (ac) CN Description * 2.050 98 Weighted 2.050 98 100.00% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 7.0 Direct Entry, Subcatchment 79S: 3245 Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Runoff Area=2.050 ac Runoff Volume=0.689 af Runoff Depth=4.03" Tc=7.0 min CN=98 12.70 cfs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 318HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 80S: 3250 Runoff = 1.88 cfs @ 12.10 hrs, Volume= 0.093 af, Depth= 3.18" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Area (ac) CN Description * 0.350 90 Weighted 0.350 90 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 7.0 Direct Entry, Subcatchment 80S: 3250 Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)2 1 0 MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Runoff Area=0.350 ac Runoff Volume=0.093 af Runoff Depth=3.18" Tc=7.0 min CN=90 1.88 cfs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 319HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 81S: 3343 Runoff = 12.62 cfs @ 12.27 hrs, Volume= 0.966 af, Depth= 1.95" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Area (ac) CN Description * 5.950 76 Weighted 5.950 76 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 19.0 Direct Entry, Subcatchment 81S: 3343 Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Runoff Area=5.950 ac Runoff Volume=0.966 af Runoff Depth=1.95" Tc=19.0 min CN=76 12.62 cfs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 320HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 82S: 3345 Runoff = 5.38 cfs @ 12.10 hrs, Volume= 0.260 af, Depth= 2.10" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Area (ac) CN Description * 1.480 78 Weighted 1.480 78 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 7.0 Direct Entry, Subcatchment 82S: 3345 Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)6 5 4 3 2 1 0 MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Runoff Area=1.480 ac Runoff Volume=0.260 af Runoff Depth=2.10" Tc=7.0 min CN=78 5.38 cfs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 321HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 83S: 3348 Runoff = 3.47 cfs @ 12.10 hrs, Volume= 0.168 af, Depth= 2.89" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Area (ac) CN Description * 0.700 87 Weighted 0.700 87 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 7.0 Direct Entry, Subcatchment 83S: 3348 Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)3 2 1 0 MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Runoff Area=0.700 ac Runoff Volume=0.168 af Runoff Depth=2.89" Tc=7.0 min CN=87 3.47 cfs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 322HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 84S: SE12 Runoff = 6.58 cfs @ 12.15 hrs, Volume= 0.382 af, Depth= 2.18" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Area (ac) CN Description * 2.100 79 Weighted 2.100 79 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 11.0 Direct Entry, Subcatchment 84S: SE12 Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)7 6 5 4 3 2 1 0 MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Runoff Area=2.100 ac Runoff Volume=0.382 af Runoff Depth=2.18" Tc=11.0 min CN=79 6.58 cfs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 323HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 85S: 1S Runoff = 7.68 cfs @ 12.22 hrs, Volume= 0.546 af, Depth= 1.45" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Area (ac) CN Description * 4.530 69 Weighted 4.530 69 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 15.0 Direct Entry, Subcatchment 85S: 1S Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)8 7 6 5 4 3 2 1 0 MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Runoff Area=4.530 ac Runoff Volume=0.546 af Runoff Depth=1.45" Tc=15.0 min CN=69 7.68 cfs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 324HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 86S: 2S Runoff = 7.59 cfs @ 12.36 hrs, Volume= 0.699 af, Depth= 1.45" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Area (ac) CN Description * 5.800 69 Weighted 5.800 69 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 25.0 Direct Entry, Subcatchment 86S: 2S Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)8 7 6 5 4 3 2 1 0 MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Runoff Area=5.800 ac Runoff Volume=0.699 af Runoff Depth=1.45" Tc=25.0 min CN=69 7.59 cfs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 325HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 87S: M9 Runoff = 36.74 cfs @ 12.41 hrs, Volume= 3.512 af, Depth= 1.95" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Area (ac) CN Description * 21.638 76 Weighted 21.638 76 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 29.0 Direct Entry, Subcatchment 87S: M9 Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)40 38 36 34 32 30 28 26 24 22 20 18 16 14 12 10 8 6 4 2 0 MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27" Runoff Area=21.638 ac Runoff Volume=3.512 af Runoff Depth=1.95" Tc=29.0 min CN=76 36.74 cfs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 326HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Reach 40R: South Drainage [40] Hint: Not Described (Outflow=Inflow) Inflow Area = 51.070 ac, 48.50% Impervious, Inflow Depth = 1.64" for 10y 24hr event Inflow = 29.76 cfs @ 12.30 hrs, Volume= 6.997 af Outflow = 29.76 cfs @ 12.30 hrs, Volume= 6.997 af, Atten= 0%, Lag= 0.0 min Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Reach 40R: South Drainage Inflow Outflow Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)32 30 28 26 24 22 20 18 16 14 12 10 8 6 4 2 0 Inflow Area=51.070 ac 29.76 cfs 29.76 cfs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 327HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Reach 42.1R: South [40] Hint: Not Described (Outflow=Inflow) Inflow Area = 9.843 ac, 71.43% Impervious, Inflow Depth = 2.10" for 10y 24hr event Inflow = 9.40 cfs @ 12.10 hrs, Volume= 1.725 af Outflow = 9.40 cfs @ 12.10 hrs, Volume= 1.725 af, Atten= 0%, Lag= 0.0 min Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Reach 42.1R: South Inflow Outflow Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)10 9 8 7 6 5 4 3 2 1 0 Inflow Area=9.843 ac 9.40 cfs 9.40 cfs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 328HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Reach 42.2R: Southeast [40] Hint: Not Described (Outflow=Inflow) Inflow Area = 11.515 ac, 75.54% Impervious, Inflow Depth = 2.05" for 10y 24hr event Inflow = 5.10 cfs @ 12.54 hrs, Volume= 1.970 af Outflow = 5.10 cfs @ 12.54 hrs, Volume= 1.970 af, Atten= 0%, Lag= 0.0 min Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Reach 42.2R: Southeast Inflow Outflow Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)5 4 3 2 1 0 Inflow Area=11.515 ac 5.10 cfs 5.10 cfs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 329HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Reach 44R: Wetland 4 Channel [40] Hint: Not Described (Outflow=Inflow) Inflow Area = 26.490 ac, 34.12% Impervious, Inflow Depth = 1.42" for 10y 24hr event Inflow = 14.22 cfs @ 12.31 hrs, Volume= 3.130 af Outflow = 14.22 cfs @ 12.31 hrs, Volume= 3.130 af, Atten= 0%, Lag= 0.0 min Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Reach 44R: Wetland 4 Channel Inflow Outflow Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 Inflow Area=26.490 ac 14.22 cfs 14.22 cfs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 330HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Reach 48R: Development to Wetland 4 [40] Hint: Not Described (Outflow=Inflow) Inflow Area = 14.497 ac, 62.34% Impervious, Inflow Depth = 2.06" for 10y 24hr event Inflow = 8.10 cfs @ 12.31 hrs, Volume= 2.490 af Outflow = 8.10 cfs @ 12.31 hrs, Volume= 2.490 af, Atten= 0%, Lag= 0.0 min Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Reach 48R: Development to Wetland 4 Inflow Outflow Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)9 8 7 6 5 4 3 2 1 0 Inflow Area=14.497 ac 8.10 cfs 8.10 cfs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 331HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Reach 72R: N68 [52] Hint: Inlet/Outlet conditions not evaluated [55] Hint: Peak inflow is 111% of Manning's capacity [76] Warning: Detained 0.008 af (Pond w/culvert advised) Inflow Area = 4.190 ac, 56.32% Impervious, Inflow Depth = 3.74" for 10y 24hr event Inflow = 23.56 cfs @ 12.10 hrs, Volume= 1.306 af Outflow = 22.07 cfs @ 12.08 hrs, Volume= 1.306 af, Atten= 6%, Lag= 0.0 min Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Max. Velocity= 7.68 fps, Min. Travel Time= 0.1 min Avg. Velocity = 2.26 fps, Avg. Travel Time= 0.5 min Peak Storage= 198 cf @ 12.09 hrs Average Depth at Peak Storage= 2.00' Bank-Full Depth= 2.00' Flow Area= 3.1 sf, Capacity= 21.17 cfs 24.0" Round Pipe n= 0.012 Length= 63.0' Slope= 0.0075 '/' Inlet Invert= 872.00', Outlet Invert= 871.53' MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 332HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Reach 72R: N68 Inflow Outflow Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)26 24 22 20 18 16 14 12 10 8 6 4 2 0 Inflow Area=4.190 ac Avg. Flow Depth=2.00' Max Vel=7.68 fps 24.0" Round Pipe n=0.012 L=63.0' S=0.0075 '/' Capacity=21.17 cfs 23.56 cfs 22.07 cfs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 333HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Pond 40.1P: South East Inflow Area = 3.753 ac, 81.66% Impervious, Inflow Depth = 3.71" for 10y 24hr event Inflow = 18.90 cfs @ 12.13 hrs, Volume= 1.160 af Outflow = 1.70 cfs @ 13.11 hrs, Volume= 1.160 af, Atten= 91%, Lag= 58.7 min Discarded = 0.07 cfs @ 6.38 hrs, Volume= 0.449 af Primary = 1.63 cfs @ 13.11 hrs, Volume= 0.711 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 895.78' @ 13.11 hrs Surf.Area= 51,048 sf Storage= 32,356 cf Plug-Flow detention time= 826.0 min calculated for 1.160 af (100% of inflow) Center-of-Mass det. time= 826.0 min ( 1,581.9 - 755.9 ) Volume Invert Avail.Storage Storage Description #1 893.70' 34,978 cf Custom Stage Data (Prismatic) Listed below (Recalc) 117,410 cf Overall - 818 cf Embedded = 116,593 cf x 30.0% Voids #2 896.00' 40,511 cf Custom Stage Data (Prismatic) Listed below (Recalc) 102,096 cf Overall - 818 cf Embedded = 101,278 cf x 40.0% Voids #3 893.70' 818 cf 8.0" Round Pipe Storage Inside #1 L= 2,343.0' #4 896.00' 818 cf 8.0" Round Pipe Storage Inside #2 L= 2,343.0' 77,125 cf Total Available Storage Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 893.70 51,048 0 0 896.00 51,048 117,410 117,410 Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 896.00 51,048 0 0 898.00 51,048 102,096 102,096 Device Routing Invert Outlet Devices #1 Primary 893.70'12.0" Round Culvert L= 260.0' RCP, sq.cut end projecting, Ke= 0.500 Inlet / Outlet Invert= 893.70' / 891.88' S= 0.0070 '/' Cc= 0.900 n= 0.011 Concrete pipe, straight & clean, Flow Area= 0.79 sf #2 Device 1 894.50'8.0" Vert. Orifice/Grate C= 0.600 #3 Device 1 896.67'12.0" Vert. Orifice/Grate C= 0.600 #4 Discarded 893.70'0.060 in/hr Exfiltration over Surface area Phase-In= 0.01' Discarded OutFlow Max=0.07 cfs @ 6.38 hrs HW=893.71' (Free Discharge) 4=Exfiltration (Exfiltration Controls 0.07 cfs) Primary OutFlow Max=1.63 cfs @ 13.11 hrs HW=895.78' TW=0.00' (Dynamic Tailwater) 1=Culvert (Passes 1.63 cfs of 3.96 cfs potential flow) 2=Orifice/Grate (Orifice Controls 1.63 cfs @ 4.67 fps) 3=Orifice/Grate ( Controls 0.00 cfs) MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 334HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Pond 40.1P: South East Inflow Outflow Discarded Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 Inflow Area=3.753 ac Peak Elev=895.78' Storage=32,356 cf 18.90 cfs 1.70 cfs 0.07 cfs 1.63 cfs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 335HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Pond 40.2P: South Central Inflow Area = 4.604 ac, 76.19% Impervious, Inflow Depth = 3.61" for 10y 24hr event Inflow = 22.68 cfs @ 12.13 hrs, Volume= 1.387 af Outflow = 1.09 cfs @ 13.64 hrs, Volume= 1.387 af, Atten= 95%, Lag= 90.5 min Discarded = 0.13 cfs @ 6.82 hrs, Volume= 0.847 af Primary = 0.96 cfs @ 13.64 hrs, Volume= 0.540 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 896.46' @ 13.64 hrs Surf.Area= 94,313 sf Storage= 42,281 cf Plug-Flow detention time= 1,273.7 min calculated for 1.387 af (100% of inflow) Center-of-Mass det. time= 1,273.7 min ( 2,031.5 - 757.8 ) Volume Invert Avail.Storage Storage Description #1 895.00' 64,623 cf Custom Stage Data (Prismatic) Listed below (Recalc) 216,920 cf Overall - 1,511 cf Embedded = 215,409 cf x 30.0% Voids #2 897.30' 74,846 cf Custom Stage Data (Prismatic) Listed below (Recalc) 188,626 cf Overall - 1,511 cf Embedded = 187,115 cf x 40.0% Voids #3 895.00' 1,511 cf 8.0" Round Pipe Storage Inside #1 L= 4,328.0' #4 897.30' 1,511 cf 8.0" Round Pipe Storage Inside #2 L= 4,328.0' 142,490 cf Total Available Storage Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 895.00 94,313 0 0 897.30 94,313 216,920 216,920 Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 897.30 94,313 0 0 899.30 94,313 188,626 188,626 Device Routing Invert Outlet Devices #1 Primary 895.00'12.0" Round Culvert L= 250.0' RCP, sq.cut end projecting, Ke= 0.500 Inlet / Outlet Invert= 895.00' / 893.25' S= 0.0070 '/' Cc= 0.900 n= 0.011 Concrete pipe, straight & clean, Flow Area= 0.79 sf #2 Device 1 895.80'8.0" Vert. Orifice/Grate C= 0.600 #3 Device 1 897.97'8.0" Vert. Orifice/Grate C= 0.600 #4 Discarded 895.00'0.060 in/hr Exfiltration over Surface area Phase-In= 0.01' Discarded OutFlow Max=0.13 cfs @ 6.82 hrs HW=895.01' (Free Discharge) 4=Exfiltration (Exfiltration Controls 0.13 cfs) Primary OutFlow Max=0.96 cfs @ 13.64 hrs HW=896.46' TW=0.00' (Dynamic Tailwater) 1=Culvert (Passes 0.96 cfs of 3.51 cfs potential flow) 2=Orifice/Grate (Orifice Controls 0.96 cfs @ 2.76 fps) 3=Orifice/Grate ( Controls 0.00 cfs) MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 336HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Pond 40.2P: South Central Inflow Outflow Discarded Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)24 22 20 18 16 14 12 10 8 6 4 2 0 Inflow Area=4.604 ac Peak Elev=896.46' Storage=42,281 cf 22.68 cfs 1.09 cfs 0.13 cfs0.96 cfs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 337HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Pond 40.3P: South Inflow Area = 5.237 ac, 69.55% Impervious, Inflow Depth = 3.50" for 10y 24hr event Inflow = 25.10 cfs @ 12.13 hrs, Volume= 1.526 af Outflow = 2.01 cfs @ 13.16 hrs, Volume= 1.526 af, Atten= 92%, Lag= 61.4 min Discarded = 0.17 cfs @ 12.73 hrs, Volume= 0.549 af Primary = 1.84 cfs @ 13.16 hrs, Volume= 0.977 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 899.84' @ 13.16 hrs Surf.Area= 120,464 sf Storage= 43,149 cf Plug-Flow detention time= 807.6 min calculated for 1.526 af (100% of inflow) Center-of-Mass det. time= 807.7 min ( 1,568.0 - 760.3 ) Volume Invert Avail.Storage Storage Description #1 897.50' 41,271 cf Custom Stage Data (Prismatic) Listed below (Recalc) 138,534 cf Overall - 965 cf Embedded = 137,569 cf x 30.0% Voids #2 899.80' 47,800 cf Custom Stage Data (Prismatic) Listed below (Recalc) 120,464 cf Overall - 965 cf Embedded = 119,499 cf x 40.0% Voids #3 897.50' 965 cf 8.0" Round Pipe Storage Inside #1 L= 2,764.0' #4 899.80' 965 cf 8.0" Round Pipe Storage Inside #2 L= 2,764.0' 91,000 cf Total Available Storage Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 897.50 60,232 0 0 899.80 60,232 138,534 138,534 Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 899.80 60,232 0 0 901.80 60,232 120,464 120,464 Device Routing Invert Outlet Devices #1 Primary 897.50'12.0" Round Culvert L= 175.0' RCP, sq.cut end projecting, Ke= 0.500 Inlet / Outlet Invert= 897.50' / 896.27' S= 0.0070 '/' Cc= 0.900 n= 0.011 Concrete pipe, straight & clean, Flow Area= 0.79 sf #2 Device 1 898.30'8.0" Vert. Orifice/Grate C= 0.600 #3 Device 1 900.47'8.0" Vert. Orifice/Grate C= 0.600 #4 Discarded 897.50'0.060 in/hr Exfiltration over Surface area Phase-In= 0.01' Discarded OutFlow Max=0.17 cfs @ 12.73 hrs HW=899.80' (Free Discharge) 4=Exfiltration (Exfiltration Controls 0.17 cfs) Primary OutFlow Max=1.84 cfs @ 13.16 hrs HW=899.84' TW=0.00' (Dynamic Tailwater) 1=Culvert (Passes 1.84 cfs of 4.33 cfs potential flow) 2=Orifice/Grate (Orifice Controls 1.84 cfs @ 5.28 fps) 3=Orifice/Grate ( Controls 0.00 cfs) MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 338HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Pond 40.3P: South Inflow Outflow Discarded Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)28 26 24 22 20 18 16 14 12 10 8 6 4 2 0 Inflow Area=5.237 ac Peak Elev=899.84' Storage=43,149 cf 25.10 cfs 2.01 cfs 0.17 cfs1.84 cfs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 339HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Pond 41.1P: South East Inflow Area = 1.607 ac, 85.30% Impervious, Inflow Depth = 3.77" for 10y 24hr event Inflow = 8.21 cfs @ 12.13 hrs, Volume= 0.505 af Outflow = 0.37 cfs @ 13.65 hrs, Volume= 0.505 af, Atten= 95%, Lag= 91.1 min Discarded = 0.06 cfs @ 7.20 hrs, Volume= 0.375 af Primary = 0.31 cfs @ 13.65 hrs, Volume= 0.131 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 889.12' @ 13.65 hrs Surf.Area= 45,024 sf Storage= 15,575 cf Plug-Flow detention time= 1,365.8 min calculated for 0.505 af (100% of inflow) Center-of-Mass det. time= 1,365.8 min ( 2,120.5 - 754.7 ) Volume Invert Avail.Storage Storage Description #1 888.00' 30,850 cf Custom Stage Data (Prismatic) Listed below (Recalc) 103,555 cf Overall - 721 cf Embedded = 102,834 cf x 30.0% Voids #2 890.30' 35,731 cf Custom Stage Data (Prismatic) Listed below (Recalc) 90,048 cf Overall - 721 cf Embedded = 89,327 cf x 40.0% Voids #3 888.00' 721 cf 8.0" Round Pipe Storage Inside #1 L= 2,066.0' #4 890.30' 721 cf 8.0" Round Pipe Storage Inside #2 L= 2,066.0' 68,023 cf Total Available Storage Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 888.00 45,024 0 0 890.30 45,024 103,555 103,555 Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 890.30 45,024 0 0 892.30 45,024 90,048 90,048 Device Routing Invert Outlet Devices #1 Primary 888.00'12.0" Round Culvert L= 70.0' RCP, sq.cut end projecting, Ke= 0.500 Inlet / Outlet Invert= 888.00' / 887.51' S= 0.0070 '/' Cc= 0.900 n= 0.011 Concrete pipe, straight & clean, Flow Area= 0.79 sf #2 Device 1 888.80'8.0" Vert. Orifice/Grate C= 0.600 #3 Device 1 890.97'8.0" Vert. Orifice/Grate C= 0.600 #4 Discarded 888.00'0.060 in/hr Exfiltration over Surface area Phase-In= 0.01' Discarded OutFlow Max=0.06 cfs @ 7.20 hrs HW=888.01' (Free Discharge) 4=Exfiltration (Exfiltration Controls 0.06 cfs) Primary OutFlow Max=0.31 cfs @ 13.65 hrs HW=889.12' TW=0.00' (Dynamic Tailwater) 1=Culvert (Passes 0.31 cfs of 2.97 cfs potential flow) 2=Orifice/Grate (Orifice Controls 0.31 cfs @ 1.91 fps) 3=Orifice/Grate ( Controls 0.00 cfs) MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 340HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Pond 41.1P: South East Inflow Outflow Discarded Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)9 8 7 6 5 4 3 2 1 0 Inflow Area=1.607 ac Peak Elev=889.12' Storage=15,575 cf 8.21 cfs 0.37 cfs 0.06 cfs0.31 cfs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 341HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Pond 41.2P: South Central Inflow Area = 3.591 ac, 80.17% Impervious, Inflow Depth = 3.68" for 10y 24hr event Inflow = 17.98 cfs @ 12.13 hrs, Volume= 1.102 af Outflow = 7.59 cfs @ 12.33 hrs, Volume= 1.102 af, Atten= 58%, Lag= 11.9 min Discarded = 0.05 cfs @ 12.10 hrs, Volume= 0.147 af Primary = 7.54 cfs @ 12.33 hrs, Volume= 0.956 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 884.54' @ 12.33 hrs Surf.Area= 33,574 sf Storage= 16,913 cf Plug-Flow detention time= 267.6 min calculated for 1.102 af (100% of inflow) Center-of-Mass det. time= 267.7 min ( 1,024.1 - 756.4 ) Volume Invert Avail.Storage Storage Description #1 881.50' 11,502 cf Custom Stage Data (Prismatic) Listed below (Recalc) 38,610 cf Overall - 269 cf Embedded = 38,341 cf x 30.0% Voids #2 883.80' 13,322 cf Custom Stage Data (Prismatic) Listed below (Recalc) 33,574 cf Overall - 269 cf Embedded = 33,305 cf x 40.0% Voids #3 881.50' 269 cf 8.0" Round Pipe Storage Inside #1 L= 770.0' #4 883.80' 269 cf 8.0" Round Pipe Storage Inside #2 L= 770.0' 25,362 cf Total Available Storage Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 881.50 16,787 0 0 883.80 16,787 38,610 38,610 Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 883.80 16,787 0 0 885.80 16,787 33,574 33,574 Device Routing Invert Outlet Devices #1 Primary 881.50'18.0" Round Culvert L= 22.0' RCP, sq.cut end projecting, Ke= 0.500 Inlet / Outlet Invert= 881.50' / 881.28' S= 0.0100 '/' Cc= 0.900 n= 0.011 Concrete pipe, straight & clean, Flow Area= 1.77 sf #2 Device 1 882.30'15.0" Vert. Orifice/Grate C= 0.600 #3 Device 1 884.47'18.0" Vert. Orifice/Grate C= 0.600 #4 Discarded 881.50'0.060 in/hr Exfiltration over Surface area Phase-In= 0.01' Discarded OutFlow Max=0.05 cfs @ 12.10 hrs HW=883.81' (Free Discharge) 4=Exfiltration (Exfiltration Controls 0.05 cfs) Primary OutFlow Max=7.54 cfs @ 12.33 hrs HW=884.54' TW=0.00' (Dynamic Tailwater) 1=Culvert (Passes 7.54 cfs of 12.88 cfs potential flow) 2=Orifice/Grate (Orifice Controls 7.51 cfs @ 6.12 fps) 3=Orifice/Grate (Orifice Controls 0.03 cfs @ 0.91 fps) MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 342HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Pond 41.2P: South Central Inflow Outflow Discarded Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 Inflow Area=3.591 ac Peak Elev=884.54' Storage=16,913 cf 17.98 cfs 7.59 cfs 0.05 cfs 7.54 cfs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 343HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Pond 41.3P: South West Inflow Area = 0.686 ac, 93.81% Impervious, Inflow Depth = 3.93" for 10y 24hr event Inflow = 3.62 cfs @ 12.13 hrs, Volume= 0.224 af Outflow = 0.17 cfs @ 13.63 hrs, Volume= 0.224 af, Atten= 95%, Lag= 90.0 min Discarded = 0.03 cfs @ 7.31 hrs, Volume= 0.176 af Primary = 0.14 cfs @ 13.63 hrs, Volume= 0.048 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 890.76' @ 13.63 hrs Surf.Area= 22,024 sf Storage= 6,905 cf Plug-Flow detention time= 1,369.9 min calculated for 0.224 af (100% of inflow) Center-of-Mass det. time= 1,369.9 min ( 2,121.9 - 752.0 ) Volume Invert Avail.Storage Storage Description #1 889.75' 15,091 cf Custom Stage Data (Prismatic) Listed below (Recalc) 50,655 cf Overall - 353 cf Embedded = 50,303 cf x 30.0% Voids #2 892.05' 17,478 cf Custom Stage Data (Prismatic) Listed below (Recalc) 44,048 cf Overall - 353 cf Embedded = 43,695 cf x 40.0% Voids #3 889.75' 353 cf 8.0" Round Pipe Storage Inside #1 L= 1,010.0' #4 892.05' 353 cf 8.0" Round Pipe Storage Inside #2 L= 1,010.0' 33,274 cf Total Available Storage Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 889.75 22,024 0 0 892.05 22,024 50,655 50,655 Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 892.05 22,024 0 0 894.05 22,024 44,048 44,048 Device Routing Invert Outlet Devices #1 Primary 889.75'12.0" Round Culvert L= 45.0' RCP, sq.cut end projecting, Ke= 0.500 Inlet / Outlet Invert= 889.75' / 889.43' S= 0.0071 '/' Cc= 0.900 n= 0.011 Concrete pipe, straight & clean, Flow Area= 0.79 sf #2 Device 1 890.55'8.0" Vert. Orifice/Grate C= 0.600 #3 Device 1 892.72'8.0" Vert. Orifice/Grate C= 0.600 #4 Discarded 889.75'0.060 in/hr Exfiltration over Surface area Phase-In= 0.01' Discarded OutFlow Max=0.03 cfs @ 7.31 hrs HW=889.76' (Free Discharge) 4=Exfiltration (Exfiltration Controls 0.03 cfs) Primary OutFlow Max=0.14 cfs @ 13.63 hrs HW=890.76' TW=0.00' (Dynamic Tailwater) 1=Culvert (Passes 0.14 cfs of 2.56 cfs potential flow) 2=Orifice/Grate (Orifice Controls 0.14 cfs @ 1.55 fps) 3=Orifice/Grate ( Controls 0.00 cfs) MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 344HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Pond 41.3P: South West Inflow Outflow Discarded Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)4 3 2 1 0 Inflow Area=0.686 ac Peak Elev=890.76' Storage=6,905 cf 3.62 cfs 0.17 cfs 0.03 cfs0.14 cfs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 345HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Pond 44P: Wetland 4 Inflow Area = 24.628 ac, 36.70% Impervious, Inflow Depth = 1.48" for 10y 24hr event Inflow = 13.35 cfs @ 12.30 hrs, Volume= 3.031 af Outflow = 13.34 cfs @ 12.31 hrs, Volume= 3.031 af, Atten= 0%, Lag= 0.5 min Primary = 13.34 cfs @ 12.31 hrs, Volume= 3.031 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 884.51' @ 12.31 hrs Surf.Area= 2,007 sf Storage= 730 cf Plug-Flow detention time= 2.7 min calculated for 3.031 af (100% of inflow) Center-of-Mass det. time= 2.2 min ( 959.9 - 957.7 ) Volume Invert Avail.Storage Storage Description #1 884.00' 37,633 cf Custom Stage Data (Prismatic) Listed below (Recalc) Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 884.00 870 0 0 884.50 1,980 713 713 885.00 3,500 1,370 2,083 886.00 7,800 5,650 7,733 887.00 14,000 10,900 18,633 888.00 24,000 19,000 37,633 Device Routing Invert Outlet Devices #1 Primary 884.03'Asymmetrical Weir, C= 3.27 Offset (feet) 0.00 51.00 133.60 176.00 217.30 239.00 Elev. (feet) 889.78 886.05 884.03 885.84 889.00 889.78 Primary OutFlow Max=13.34 cfs @ 12.31 hrs HW=884.51' TW=0.00' (Dynamic Tailwater) 1=Asymmetrical Weir (Weir Controls 13.34 cfs @ 0.91 fps) MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 346HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Pond 44P: Wetland 4 Inflow Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 Inflow Area=24.628 ac Peak Elev=884.51' Storage=730 cf 13.35 cfs 13.34 cfs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 347HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Pond 46P: Triangle Basin Inflow Area = 2.229 ac, 19.60% Impervious, Inflow Depth = 2.61" for 10y 24hr event Inflow = 7.61 cfs @ 12.17 hrs, Volume= 0.485 af Outflow = 5.67 cfs @ 12.27 hrs, Volume= 0.485 af, Atten= 26%, Lag= 6.0 min Discarded = 0.01 cfs @ 12.27 hrs, Volume= 0.014 af Primary = 5.66 cfs @ 12.27 hrs, Volume= 0.472 af Secondary = 0.00 cfs @ 0.00 hrs, Volume= 0.000 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 887.68' @ 12.27 hrs Surf.Area= 5,408 sf Storage= 2,243 cf Plug-Flow detention time= 54.2 min calculated for 0.485 af (100% of inflow) Center-of-Mass det. time= 54.3 min ( 842.7 - 788.4 ) Volume Invert Avail.Storage Storage Description #1 884.37' 1,087 cf Sand section (Prismatic) Listed below (Recalc) 3,648 cf Overall - 24 cf Embedded = 3,623 cf x 30.0% Voids #2 884.37' 24 cf 8.0" Round Pipe Storage Inside #1 L= 70.0' #3 886.67' 159 cf Topsoil (Prismatic) Listed below (Recalc) 793 cf Overall x 20.0% Voids #4 887.17' 14,801 cf Open pond (Prismatic) Listed below (Recalc) 16,071 cf Total Available Storage Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 884.37 1,586 0 0 886.67 1,586 3,648 3,648 Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 886.67 1,586 0 0 887.17 1,586 793 793 Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 887.17 1,586 0 0 890.90 6,350 14,801 14,801 Device Routing Invert Outlet Devices #1 Primary 884.37'18.0" Round Culvert L= 125.0' RCP, sq.cut end projecting, Ke= 0.500 Inlet / Outlet Invert= 884.37' / 884.00' S= 0.0030 '/' Cc= 0.900 n= 0.011 Concrete pipe, straight & clean, Flow Area= 1.77 sf #2 Device 1 885.17'12.0" Vert. Orifice/Grate C= 0.600 #3 Device 1 887.41'12.0" Vert. Orifice/Grate C= 0.600 #4 Secondary 890.75'20.0' long x 5.0' breadth Broad-Crested Rectangular Weir Head (feet) 0.20 0.40 0.60 0.80 1.00 1.20 1.40 1.60 1.80 2.00 2.50 3.00 3.50 4.00 4.50 5.00 5.50 Coef. (English) 2.34 2.50 2.70 2.68 2.68 2.66 2.65 2.65 2.65 MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 348HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC 2.65 2.67 2.66 2.68 2.70 2.74 2.79 2.88 #5 Discarded 884.37'0.060 in/hr Exfiltration over Surface area Phase-In= 0.01' Discarded OutFlow Max=0.01 cfs @ 12.27 hrs HW=887.68' (Free Discharge) 5=Exfiltration (Exfiltration Controls 0.01 cfs) Primary OutFlow Max=5.66 cfs @ 12.27 hrs HW=887.68' TW=0.00' (Dynamic Tailwater) 1=Culvert (Passes 5.66 cfs of 11.82 cfs potential flow) 2=Orifice/Grate (Orifice Controls 5.36 cfs @ 6.82 fps) 3=Orifice/Grate (Orifice Controls 0.30 cfs @ 1.77 fps) Secondary OutFlow Max=0.00 cfs @ 0.00 hrs HW=884.37' TW=0.00' (Dynamic Tailwater) 4=Broad-Crested Rectangular Weir ( Controls 0.00 cfs) Pond 46P: Triangle Basin Inflow Outflow Discarded Primary Secondary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)8 7 6 5 4 3 2 1 0 Inflow Area=2.229 ac Peak Elev=887.68' Storage=2,243 cf 7.61 cfs 5.67 cfs 0.01 cfs 5.66 cfs 0.00 cfs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 349HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Pond 47P: Bluff Creek - West Basin Inflow Area = 7.031 ac, 70.52% Impervious, Inflow Depth = 3.48" for 10y 24hr event Inflow = 33.97 cfs @ 12.10 hrs, Volume= 2.037 af Outflow = 1.61 cfs @ 13.62 hrs, Volume= 2.037 af, Atten= 95%, Lag= 91.2 min Discarded = 0.15 cfs @ 7.14 hrs, Volume= 0.996 af Primary = 1.47 cfs @ 13.62 hrs, Volume= 1.041 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 910.09' @ 13.62 hrs Surf.Area= 107,300 sf Storage= 62,149 cf Plug-Flow detention time= 1,140.7 min calculated for 2.037 af (100% of inflow) Center-of-Mass det. time= 1,140.8 min ( 1,904.8 - 764.1 ) Volume Invert Avail.Storage Storage Description #1 908.20' 73,521 cf Custom Stage Data (Prismatic) Listed below (Recalc) 246,790 cf Overall - 1,719 cf Embedded = 245,071 cf x 30.0% Voids #2 910.50' 85,152 cf Custom Stage Data (Prismatic) Listed below (Recalc) 214,600 cf Overall - 1,719 cf Embedded = 212,881 cf x 40.0% Voids #3 908.20' 1,719 cf 8.0" Round Pipe Storage Inside #1 L= 4,925.0' #4 910.50' 1,719 cf 8.0" Round Pipe Storage Inside #2 L= 4,925.0' 162,112 cf Total Available Storage Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 908.20 107,300 0 0 910.50 107,300 246,790 246,790 Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 910.50 107,300 0 0 912.50 107,300 214,600 214,600 Device Routing Invert Outlet Devices #1 Primary 908.20'12.0" Round Culvert L= 307.0' RCP, square edge headwall, Ke= 0.500 Inlet / Outlet Invert= 908.20' / 905.13' S= 0.0100 '/' Cc= 0.900 n= 0.011 Concrete pipe, straight & clean, Flow Area= 0.79 sf #2 Device 1 909.00'8.0" Vert. Orifice/Grate C= 0.600 #3 Device 1 911.24'8.0" Vert. Orifice/Grate C= 0.600 #4 Discarded 908.20'0.060 in/hr Exfiltration over Surface area Phase-In= 0.01' Discarded OutFlow Max=0.15 cfs @ 7.14 hrs HW=908.21' (Free Discharge) 4=Exfiltration (Exfiltration Controls 0.15 cfs) Primary OutFlow Max=1.47 cfs @ 13.62 hrs HW=910.09' TW=0.00' (Dynamic Tailwater) 1=Culvert (Passes 1.47 cfs of 4.33 cfs potential flow) 2=Orifice/Grate (Orifice Controls 1.47 cfs @ 4.20 fps) 3=Orifice/Grate ( Controls 0.00 cfs) MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 350HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Pond 47P: Bluff Creek - West Basin Inflow Outflow Discarded Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)38 36 34 32 30 28 26 24 22 20 18 16 14 12 10 8 6 4 2 0 Inflow Area=7.031 ac Peak Elev=910.09' Storage=62,149 cf 33.97 cfs 1.61 cfs 0.15 cfs1.47 cfs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 351HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Pond 48P: Bluff Creek - East Basin Inflow Area = 3.441 ac, 81.34% Impervious, Inflow Depth = 3.70" for 10y 24hr event Inflow = 21.95 cfs @ 12.07 hrs, Volume= 1.062 af Outflow = 1.51 cfs @ 13.06 hrs, Volume= 1.062 af, Atten= 93%, Lag= 59.3 min Discarded = 0.07 cfs @ 6.37 hrs, Volume= 0.456 af Primary = 1.44 cfs @ 13.06 hrs, Volume= 0.607 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 897.22' @ 13.06 hrs Surf.Area= 52,085 sf Storage= 29,788 cf Plug-Flow detention time= 892.3 min calculated for 1.062 af (100% of inflow) Center-of-Mass det. time= 892.4 min ( 1,643.8 - 751.4 ) Volume Invert Avail.Storage Storage Description #1 895.35' 35,688 cf Custom Stage Data (Prismatic) Listed below (Recalc) 119,795 cf Overall - 834 cf Embedded = 118,961 cf x 30.0% Voids #2 897.65' 41,334 cf Custom Stage Data (Prismatic) Listed below (Recalc) 104,170 cf Overall - 834 cf Embedded = 103,336 cf x 40.0% Voids #3 895.35' 834 cf 8.0" Round Pipe Storage Inside #1 L= 2,390.0' #4 897.65' 834 cf 8.0" Round Pipe Storage Inside #2 L= 2,390.0' 78,691 cf Total Available Storage Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 895.35 52,085 0 0 897.65 52,085 119,795 119,795 Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 897.65 52,085 0 0 899.65 52,085 104,170 104,170 Device Routing Invert Outlet Devices #1 Primary 895.35'12.0" Round Culvert L= 637.0' RCP, square edge headwall, Ke= 0.500 Inlet / Outlet Invert= 895.35' / 888.98' S= 0.0100 '/' Cc= 0.900 n= 0.011 Concrete pipe, straight & clean, Flow Area= 0.79 sf #2 Device 1 896.15'8.0" Vert. Orifice/Grate C= 0.600 #3 Device 1 898.39'8.0" Vert. Orifice/Grate C= 0.600 #4 Discarded 895.35'0.060 in/hr Exfiltration over Surface area Phase-In= 0.01' Discarded OutFlow Max=0.07 cfs @ 6.37 hrs HW=895.36' (Free Discharge) 4=Exfiltration (Exfiltration Controls 0.07 cfs) Primary OutFlow Max=1.44 cfs @ 13.06 hrs HW=897.22' TW=0.00' (Dynamic Tailwater) 1=Culvert (Passes 1.44 cfs of 4.26 cfs potential flow) 2=Orifice/Grate (Orifice Controls 1.44 cfs @ 4.13 fps) 3=Orifice/Grate ( Controls 0.00 cfs) MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 352HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Pond 48P: Bluff Creek - East Basin Inflow Outflow Discarded Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)24 22 20 18 16 14 12 10 8 6 4 2 0 Inflow Area=3.441 ac Peak Elev=897.22' Storage=29,788 cf 21.95 cfs 1.51 cfs 0.07 cfs1.44 cfs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 353HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Pond 48P(2): Bluff Creek - East Basin Inflow Area = 2.152 ac, 68.04% Impervious, Inflow Depth = 3.47" for 10y 24hr event Inflow = 10.25 cfs @ 12.13 hrs, Volume= 0.622 af Outflow = 1.66 cfs @ 12.63 hrs, Volume= 0.622 af, Atten= 84%, Lag= 30.0 min Discarded = 0.03 cfs @ 6.38 hrs, Volume= 0.207 af Primary = 1.62 cfs @ 12.63 hrs, Volume= 0.415 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 897.82' @ 12.63 hrs Surf.Area= 24,429 sf Storage= 15,416 cf Plug-Flow detention time= 656.2 min calculated for 0.622 af (100% of inflow) Center-of-Mass det. time= 656.2 min ( 1,417.1 - 760.9 ) Volume Invert Avail.Storage Storage Description #1 895.75' 16,739 cf Custom Stage Data (Prismatic) Listed below (Recalc) 56,187 cf Overall - 391 cf Embedded = 55,795 cf x 30.0% Voids #2 898.05' 19,387 cf Custom Stage Data (Prismatic) Listed below (Recalc) 48,858 cf Overall - 391 cf Embedded = 48,467 cf x 40.0% Voids #3 895.75' 391 cf 8.0" Round Pipe Storage Inside #1 L= 1,121.0' #4 898.05' 391 cf 8.0" Round Pipe Storage Inside #2 L= 1,121.0' 36,908 cf Total Available Storage Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 895.75 24,429 0 0 898.05 24,429 56,187 56,187 Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 898.05 24,429 0 0 900.05 24,429 48,858 48,858 Device Routing Invert Outlet Devices #1 Primary 895.75'8.0" Round Culvert L= 50.0' RCP, square edge headwall, Ke= 0.500 Inlet / Outlet Invert= 895.75' / 895.25' S= 0.0100 '/' Cc= 0.900 n= 0.011 Concrete pipe, straight & clean, Flow Area= 0.35 sf #2 Device 1 896.55'8.0" Vert. Orifice/Grate C= 0.600 #3 Device 1 898.79'8.0" Vert. Orifice/Grate C= 0.600 #4 Discarded 895.75'0.060 in/hr Exfiltration over Surface area Phase-In= 0.01' Discarded OutFlow Max=0.03 cfs @ 6.38 hrs HW=895.76' (Free Discharge) 4=Exfiltration (Exfiltration Controls 0.03 cfs) Primary OutFlow Max=1.62 cfs @ 12.63 hrs HW=897.82' TW=0.00' (Dynamic Tailwater) 1=Culvert (Passes 1.62 cfs of 2.08 cfs potential flow) 2=Orifice/Grate (Orifice Controls 1.62 cfs @ 4.65 fps) 3=Orifice/Grate ( Controls 0.00 cfs) MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 354HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Pond 48P(2): Bluff Creek - East Basin Inflow Outflow Discarded Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)11 10 9 8 7 6 5 4 3 2 1 0 Inflow Area=2.152 ac Peak Elev=897.82' Storage=15,416 cf 10.25 cfs 1.66 cfs 0.03 cfs 1.62 cfs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 355HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Pond 71P: Interlachen [63] Warning: Exceeded Reach 72R INLET depth by 0.46' @ 12.74 hrs Inflow Area = 30.860 ac, 27.80% Impervious, Inflow Depth = 2.84" for 10y 24hr event Inflow = 110.95 cfs @ 12.11 hrs, Volume= 7.300 af Outflow = 20.63 cfs @ 12.66 hrs, Volume= 7.288 af, Atten= 81%, Lag= 32.9 min Primary = 20.63 cfs @ 12.66 hrs, Volume= 7.288 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 872.91' @ 12.66 hrs Surf.Area= 62,156 sf Storage= 161,551 cf Plug-Flow detention time= 513.2 min calculated for 7.288 af (100% of inflow) Center-of-Mass det. time= 512.1 min ( 1,289.7 - 777.6 ) Volume Invert Avail.Storage Storage Description #1 870.00' 381,460 cf Custom Stage Data (Prismatic) Listed below (Recalc) Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 870.00 50,570 0 0 872.00 56,860 107,430 107,430 875.00 74,330 196,785 304,215 876.00 80,160 77,245 381,460 Device Routing Invert Outlet Devices #1 Primary 870.00'24.0" Round Culvert L= 33.0' RCP, square edge headwall, Ke= 0.500 Inlet / Outlet Invert= 870.00' / 869.67' S= 0.0100 '/' Cc= 0.900 n= 0.012, Flow Area= 3.14 sf #2 Device 1 866.61'24.0" Round Culvert L= 21.0' RCP, end-section conforming to fill, Ke= 0.500 Inlet / Outlet Invert= 866.50' / 866.61' S= -0.0052 '/' Cc= 0.900 n= 0.012, Flow Area= 3.14 sf Primary OutFlow Max=20.63 cfs @ 12.66 hrs HW=872.91' TW=870.13' (Dynamic Tailwater) 1=Culvert (Barrel Controls 20.63 cfs @ 6.57 fps) 2=Culvert (Passes 20.63 cfs of 25.23 cfs potential flow) MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 356HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Pond 71P: Interlachen Inflow Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)120 115 110 105 100 95 90 85 80 75 70 65 60 55 50 45 40 35 30 25 20 15 10 5 0 Inflow Area=30.860 ac Peak Elev=872.91' Storage=161,551 cf 110.95 cfs 20.63 cfs MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 357HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Pond 72P: South MNDOT M9 Wetland Inflow Area = 115.998 ac, 28.75% Impervious, Inflow Depth = 2.01" for 10y 24hr event Inflow = 99.95 cfs @ 12.37 hrs, Volume= 19.424 af Outflow = 3.87 cfs @ 20.04 hrs, Volume= 19.111 af, Atten= 96%, Lag= 460.1 min Primary = 3.87 cfs @ 20.04 hrs, Volume= 19.111 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 871.05' @ 20.04 hrs Surf.Area= 491,625 sf Storage= 646,427 cf Plug-Flow detention time= 2,695.6 min calculated for 19.111 af (98% of inflow) Center-of-Mass det. time= 2,616.0 min ( 3,651.5 - 1,035.4 ) Volume Invert Avail.Storage Storage Description #1 869.50' 2,891,990 cf Custom Stage Data (Prismatic) Listed below (Recalc) Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 869.50 214,970 0 0 870.00 433,070 162,010 162,010 871.00 489,600 461,335 623,345 872.00 532,650 511,125 1,134,470 875.00 639,030 1,757,520 2,891,990 Device Routing Invert Outlet Devices #1 Primary 869.00'18.0" Round Culvert L= 276.0' RCP, square edge headwall, Ke= 0.500 Inlet / Outlet Invert= 869.00' / 866.93' S= 0.0075 '/' Cc= 0.900 n= 0.013 Concrete pipe, straight & clean, Flow Area= 1.77 sf #2 Device 1 869.50'12.0" Vert. Orifice/Grate C= 0.600 #3 Device 2 869.36'18.0" Round Culvert L= 172.0' RCP, end-section conforming to fill, Ke= 0.500 Inlet / Outlet Invert= 868.50' / 869.36' S= -0.0050 '/' Cc= 0.900 n= 0.013 Concrete pipe, straight & clean, Flow Area= 1.77 sf Primary OutFlow Max=3.87 cfs @ 20.04 hrs HW=871.05' (Free Discharge) 1=Culvert (Passes 3.87 cfs of 8.97 cfs potential flow) 2=Orifice/Grate (Orifice Controls 3.87 cfs @ 4.93 fps) 3=Culvert (Passes 3.87 cfs of 6.73 cfs potential flow) MN-RPBCWD_v1_Atlas14_24-hr10y_S1 10y 24hr Rainfall=4.27"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 358HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Pond 72P: South MNDOT M9 Wetland Inflow Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)110 105 100 95 90 85 80 75 70 65 60 55 50 45 40 35 30 25 20 15 10 5 0 Inflow Area=115.998 ac Peak Elev=871.05' Storage=646,427 cf 99.95 cfs 3.87 cfs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 359HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Time span=0.00-360.00 hrs, dt=0.01 hrs, 36001 points Runoff by SCS TR-20 method, UH=SCS, Weighted-Q Reach routing by Dyn-Stor-Ind method - Pond routing by Dyn-Stor-Ind method Runoff Area=163,468 sf 81.66% Impervious Runoff Depth=6.79"Subcatchment 40.1S: South - East Tc=10.0 min CN=WQ Runoff=31.69 cfs 2.122 af Runoff Area=200,567 sf 76.19% Impervious Runoff Depth=6.67"Subcatchment 40.2S: South - Central Tc=10.0 min CN=WQ Runoff=38.45 cfs 2.560 af Runoff Area=228,145 sf 69.55% Impervious Runoff Depth=6.53"Subcatchment 40.3S: South - West Tc=10.0 min CN=WQ Runoff=43.14 cfs 2.851 af Runoff Area=69,984 sf 85.30% Impervious Runoff Depth=6.86"Subcatchment 41.1S: South - East Tc=10.0 min CN=WQ Runoff=13.67 cfs 0.919 af Runoff Area=156,419 sf 80.17% Impervious Runoff Depth=6.75"Subcatchment 41.2S: South - Central Tc=10.0 min CN=WQ Runoff=30.24 cfs 2.021 af Runoff Area=29,884 sf 93.81% Impervious Runoff Depth=7.04"Subcatchment 41.3S: South - west Tc=10.0 min CN=WQ Runoff=5.94 cfs 0.403 af Runoff Area=41,871 sf 0.00% Impervious Runoff Depth=5.07"Subcatchment 42.1S: South Tc=5.0 min CN=80 Runoff=8.61 cfs 0.406 af Runoff Area=24,525 sf 0.00% Impervious Runoff Depth=5.07"Subcatchment 42.2S: Southeast Tc=5.0 min CN=80 Runoff=5.04 cfs 0.238 af Runoff Area=3.222 ac 0.00% Impervious Runoff Depth=2.39"Subcatchment 43.1S: East Woods Flow Length=530' Tc=15.2 min CN=55 Runoff=8.28 cfs 0.641 af Runoff Area=1.862 ac 0.00% Impervious Runoff Depth=2.39"Subcatchment 43.2S: Northeast Woods Flow Length=623' Tc=19.5 min CN=55 Runoff=4.24 cfs 0.371 af Runoff Area=441,314 sf 0.00% Impervious Runoff Depth=2.39"Subcatchment 44S: North Woods Flow Length=599' Tc=16.5 min CN=55 Runoff=24.95 cfs 2.017 af Runoff Area=206,303 sf 65.51% Impervious Runoff Depth=6.41"Subcatchment 45S: Central - West Tc=10.0 min CN=WQ Runoff=39.16 cfs 2.532 af Runoff Area=97,082 sf 19.60% Impervious Runoff Depth=5.49"Subcatchment 46S: South Townhomes Flow Length=701' Tc=12.6 min CN=WQ Runoff=14.82 cfs 1.019 af Runoff Area=2.295 ac 80.87% Impervious Runoff Depth=6.77"Subcatchment 47S: Bluff Creek Blvd - West Tc=5.0 min CN=WQ Runoff=24.48 cfs 1.295 af Runoff Area=93,721 sf 68.04% Impervious Runoff Depth=6.50"Subcatchment 48.1S: Direct to 48P (2) Tc=10.0 min CN=WQ Runoff=17.66 cfs 1.166 af Runoff Area=3.441 ac 81.34% Impervious Runoff Depth=6.78"Subcatchment 48S: Bluff Creek Blvd - East Tc=5.0 min CN=WQ Runoff=36.74 cfs 1.944 af MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 360HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Runoff Area=2.080 ac 0.00% Impervious Runoff Depth=5.53"Subcatchment 71-1S: Interlacn Subcatch 1 Tc=7.0 min CN=84 Runoff=18.06 cfs 0.959 af Runoff Area=1.160 ac 100.00% Impervious Runoff Depth=7.41"Subcatchment 71-2S: Interlacn Subcatch 2 Tc=7.0 min CN=100 Runoff=11.67 cfs 0.716 af Runoff Area=0.810 ac 0.00% Impervious Runoff Depth=6.70"Subcatchment 72S: 6_Temp Tc=9.0 min CN=94 Runoff=7.25 cfs 0.452 af Runoff Area=2.360 ac 100.00% Impervious Runoff Depth=7.17"Subcatchment 73S: N68 Tc=7.0 min CN=98 Runoff=23.67 cfs 1.410 af Runoff Area=1.020 ac 0.00% Impervious Runoff Depth=6.23"Subcatchment 74S: 5_Temp Tc=9.0 min CN=90 Runoff=8.78 cfs 0.529 af Runoff Area=3.010 ac 100.00% Impervious Runoff Depth=7.17"Subcatchment 75S: 3225 Tc=7.0 min CN=98 Runoff=30.19 cfs 1.799 af Runoff Area=8.310 ac 0.00% Impervious Runoff Depth=5.07"Subcatchment 76S: 3236 Tc=14.0 min CN=80 Runoff=50.13 cfs 3.514 af Runoff Area=0.950 ac 0.00% Impervious Runoff Depth=5.42"Subcatchment 77S: 3238 Tc=7.0 min CN=83 Runoff=8.11 cfs 0.429 af Runoff Area=0.630 ac 0.00% Impervious Runoff Depth=6.34"Subcatchment 78S: 3243 Tc=7.0 min CN=91 Runoff=6.02 cfs 0.333 af Runoff Area=2.050 ac 100.00% Impervious Runoff Depth=7.17"Subcatchment 79S: 3245 Tc=7.0 min CN=98 Runoff=20.56 cfs 1.225 af Runoff Area=0.350 ac 0.00% Impervious Runoff Depth=6.23"Subcatchment 80S: 3250 Tc=7.0 min CN=90 Runoff=3.31 cfs 0.182 af Runoff Area=5.950 ac 0.00% Impervious Runoff Depth=4.62"Subcatchment 81S: 3343 Tc=19.0 min CN=76 Runoff=28.32 cfs 2.293 af Runoff Area=1.480 ac 0.00% Impervious Runoff Depth=4.85"Subcatchment 82S: 3345 Tc=7.0 min CN=78 Runoff=11.48 cfs 0.598 af Runoff Area=0.700 ac 0.00% Impervious Runoff Depth=5.88"Subcatchment 83S: 3348 Tc=7.0 min CN=87 Runoff=6.36 cfs 0.343 af Runoff Area=2.100 ac 0.00% Impervious Runoff Depth=4.96"Subcatchment 84S: SE12 Tc=11.0 min CN=79 Runoff=13.85 cfs 0.868 af Runoff Area=4.530 ac 0.00% Impervious Runoff Depth=3.85"Subcatchment 85S: 1S Tc=15.0 min CN=69 Runoff=20.10 cfs 1.454 af Runoff Area=5.800 ac 0.00% Impervious Runoff Depth=3.85"Subcatchment 86S: 2S Tc=25.0 min CN=69 Runoff=19.99 cfs 1.862 af MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 361HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Runoff Area=21.638 ac 0.00% Impervious Runoff Depth=4.62"Subcatchment 87S: M9 Tc=29.0 min CN=76 Runoff=83.28 cfs 8.338 af Inflow=82.03 cfs 17.808 afReach 40R: South Drainage Outflow=82.03 cfs 17.808 af Inflow=21.12 cfs 4.113 afReach 42.1R: South Outflow=21.12 cfs 4.113 af Inflow=10.54 cfs 4.786 afReach 42.2R: Southeast Outflow=10.54 cfs 4.786 af Inflow=43.57 cfs 8.267 afReach 44R: Wetland 4 Channel Outflow=43.57 cfs 8.267 af Inflow=15.12 cfs 5.880 afReach 48R: Development to Wetland 4 Outflow=15.12 cfs 5.880 af Avg. Flow Depth=2.00' Max Vel=7.68 fps Inflow=39.13 cfs 2.391 afReach 72R: N68 24.0" Round Pipe n=0.012 L=63.0' S=0.0075 '/' Capacity=21.17 cfs Outflow=21.18 cfs 2.391 af Peak Elev=897.13' Storage=59,401 cf Inflow=31.69 cfs 2.122 afPond 40.1P: South East Discarded=0.14 cfs 0.496 af Primary=3.37 cfs 1.626 af Outflow=3.51 cfs 2.122 af Peak Elev=897.65' Storage=79,999 cf Inflow=38.45 cfs 2.560 afPond 40.2P: South Central Discarded=0.26 cfs 0.947 af Primary=2.07 cfs 1.613 af Outflow=2.33 cfs 2.560 af Peak Elev=901.39' Storage=81,048 cf Inflow=43.14 cfs 2.851 afPond 40.3P: South Discarded=0.17 cfs 0.613 af Primary=4.07 cfs 2.238 af Outflow=4.24 cfs 2.851 af Peak Elev=889.87' Storage=25,738 cf Inflow=13.67 cfs 0.919 afPond 41.1P: South East Discarded=0.06 cfs 0.385 af Primary=1.44 cfs 0.534 af Outflow=1.50 cfs 0.919 af Peak Elev=885.73' Storage=24,905 cf Inflow=30.24 cfs 2.021 afPond 41.2P: South Central Discarded=0.05 cfs 0.150 af Primary=15.88 cfs 1.871 af Outflow=15.92 cfs 2.021 af Peak Elev=891.29' Storage=10,393 cf Inflow=5.94 cfs 0.403 afPond 41.3P: South West Discarded=0.03 cfs 0.180 af Primary=1.07 cfs 0.223 af Outflow=1.10 cfs 0.403 af Peak Elev=884.77' Storage=1,353 cf Inflow=39.40 cfs 7.897 afPond 44P: Wetland 4 Outflow=39.38 cfs 7.896 af Peak Elev=888.74' Storage=5,342 cf Inflow=14.82 cfs 1.019 afPond 46P: Triangle Basin Discarded=0.01 cfs 0.014 af Primary=10.08 cfs 1.005 af Secondary=0.00 cfs 0.000 af Outflow=10.09 cfs 1.019 af Peak Elev=911.58' Storage=122,722 cf Inflow=58.16 cfs 3.826 afPond 47P: Bluff Creek - West Basin Discarded=0.30 cfs 1.189 af Primary=2.88 cfs 2.638 af Outflow=3.18 cfs 3.826 af Peak Elev=898.56' Storage=55,932 cf Inflow=36.74 cfs 1.944 afPond 48P: Bluff Creek - East Basin Discarded=0.14 cfs 0.501 af Primary=2.52 cfs 1.443 af Outflow=2.66 cfs 1.944 af MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 362HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Peak Elev=899.20' Storage=28,575 cf Inflow=17.66 cfs 1.166 afPond 48P(2): Bluff Creek - East Basin Discarded=0.07 cfs 0.220 af Primary=2.74 cfs 0.945 af Outflow=2.81 cfs 1.166 af Peak Elev=875.52' Storage=343,535 cf Inflow=190.89 cfs 14.781 afPond 71P: Interlachen Outflow=32.11 cfs 14.766 af Peak Elev=872.73' Storage=1,532,401 cf Inflow=230.15 cfs 45.097 afPond 72P: South MNDOT M9 Wetland Outflow=6.25 cfs 44.695 af Total Runoff Area = 115.998 ac Runoff Volume = 49.807 af Average Runoff Depth = 5.15" 71.25% Pervious = 82.651 ac 28.75% Impervious = 33.347 ac MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 363HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 40.1S: South - East Runoff = 31.69 cfs @ 12.13 hrs, Volume= 2.122 af, Depth= 6.79" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Area (sf) CN Description 29,976 80 >75% Grass cover, Good, HSG D 133,492 98 Paved parking, HSG D 163,468 Weighted Average 29,976 80 18.34% Pervious Area 133,492 98 81.66% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 10.0 Direct Entry, Subcatchment 40.1S: South - East Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)34 32 30 28 26 24 22 20 18 16 14 12 10 8 6 4 2 0 MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Runoff Area=163,468 sf Runoff Volume=2.122 af Runoff Depth=6.79" Tc=10.0 min CN=WQ 31.69 cfs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 364HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 40.2S: South - Central Runoff = 38.45 cfs @ 12.13 hrs, Volume= 2.560 af, Depth= 6.67" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Area (sf) CN Description 47,748 80 >75% Grass cover, Good, HSG D 152,819 98 Paved parking, HSG D 200,567 Weighted Average 47,748 80 23.81% Pervious Area 152,819 98 76.19% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 10.0 Direct Entry, Subcatchment 40.2S: South - Central Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)42 40 38 36 34 32 30 28 26 24 22 20 18 16 14 12 10 8 6 4 2 0 MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Runoff Area=200,567 sf Runoff Volume=2.560 af Runoff Depth=6.67" Tc=10.0 min CN=WQ 38.45 cfs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 365HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 40.3S: South - West Runoff = 43.14 cfs @ 12.13 hrs, Volume= 2.851 af, Depth= 6.53" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Area (sf) CN Description 69,464 80 >75% Grass cover, Good, HSG D * 158,681 98 Paved parking & roofs, HSG D 228,145 Weighted Average 69,464 80 30.45% Pervious Area 158,681 98 69.55% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 10.0 Direct Entry, Subcatchment 40.3S: South - West Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)48 46 44 42 40 38 36 34 32 30 28 26 24 22 20 18 16 14 12 10 8 6 4 2 0 MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Runoff Area=228,145 sf Runoff Volume=2.851 af Runoff Depth=6.53" Tc=10.0 min CN=WQ 43.14 cfs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 366HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 41.1S: South - East Runoff = 13.67 cfs @ 12.13 hrs, Volume= 0.919 af, Depth= 6.86" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Area (sf) CN Description 10,289 80 >75% Grass cover, Good, HSG D 59,695 98 Paved parking, HSG D 69,984 Weighted Average 10,289 80 14.70% Pervious Area 59,695 98 85.30% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 10.0 Direct Entry, Subcatchment 41.1S: South - East Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Runoff Area=69,984 sf Runoff Volume=0.919 af Runoff Depth=6.86" Tc=10.0 min CN=WQ 13.67 cfs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 367HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 41.2S: South - Central Runoff = 30.24 cfs @ 12.13 hrs, Volume= 2.021 af, Depth= 6.75" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Area (sf) CN Description 31,015 80 >75% Grass cover, Good, HSG D 125,404 98 Paved parking, HSG D 156,419 Weighted Average 31,015 80 19.83% Pervious Area 125,404 98 80.17% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 10.0 Direct Entry, Subcatchment 41.2S: South - Central Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)32 30 28 26 24 22 20 18 16 14 12 10 8 6 4 2 0 MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Runoff Area=156,419 sf Runoff Volume=2.021 af Runoff Depth=6.75" Tc=10.0 min CN=WQ 30.24 cfs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 368HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 41.3S: South - west Runoff = 5.94 cfs @ 12.13 hrs, Volume= 0.403 af, Depth= 7.04" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Area (sf) CN Description 1,850 80 >75% Grass cover, Good, HSG D 28,034 98 Paved parking, HSG D 29,884 Weighted Average 1,850 80 6.19% Pervious Area 28,034 98 93.81% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 10.0 Direct Entry, Subcatchment 41.3S: South - west Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)6 5 4 3 2 1 0 MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Runoff Area=29,884 sf Runoff Volume=0.403 af Runoff Depth=7.04" Tc=10.0 min CN=WQ 5.94 cfs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 369HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 42.1S: South Runoff = 8.61 cfs @ 12.07 hrs, Volume= 0.406 af, Depth= 5.07" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Area (sf) CN Description 41,871 80 >75% Grass cover, Good, HSG D 41,871 80 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 5.0 Direct Entry, Subcatchment 42.1S: South Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)9 8 7 6 5 4 3 2 1 0 MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Runoff Area=41,871 sf Runoff Volume=0.406 af Runoff Depth=5.07" Tc=5.0 min CN=80 8.61 cfs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 370HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 42.2S: Southeast Runoff = 5.04 cfs @ 12.07 hrs, Volume= 0.238 af, Depth= 5.07" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Area (sf) CN Description 24,525 80 >75% Grass cover, Good, HSG D 24,525 80 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 5.0 Direct Entry, Subcatchment 42.2S: Southeast Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)5 4 3 2 1 0 MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Runoff Area=24,525 sf Runoff Volume=0.238 af Runoff Depth=5.07" Tc=5.0 min CN=80 5.04 cfs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 371HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 43.1S: East Woods Runoff = 8.28 cfs @ 12.22 hrs, Volume= 0.641 af, Depth= 2.39" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Area (ac) CN Description 3.222 55 Woods, Good, HSG B 3.222 55 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 11.1 75 0.0670 0.11 Sheet Flow, Woods: Light underbrush n= 0.400 P2= 2.87" 4.1 455 0.1380 1.86 Shallow Concentrated Flow, Woodland Kv= 5.0 fps 15.2 530 Total Subcatchment 43.1S: East Woods Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)9 8 7 6 5 4 3 2 1 0 MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Runoff Area=3.222 ac Runoff Volume=0.641 af Runoff Depth=2.39" Flow Length=530' Tc=15.2 min CN=55 8.28 cfs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 372HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 43.2S: Northeast Woods Runoff = 4.24 cfs @ 12.29 hrs, Volume= 0.371 af, Depth= 2.39" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Area (ac) CN Description 1.862 55 Woods, Good, HSG B 1.862 55 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 14.2 100 0.0650 0.12 Sheet Flow, Woods: Light underbrush n= 0.400 P2= 2.87" 5.3 523 0.1080 1.64 Shallow Concentrated Flow, Woodland Kv= 5.0 fps 19.5 623 Total Subcatchment 43.2S: Northeast Woods Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)4 3 2 1 0 MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Runoff Area=1.862 ac Runoff Volume=0.371 af Runoff Depth=2.39" Flow Length=623' Tc=19.5 min CN=55 4.24 cfs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 373HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 44S: North Woods Runoff = 24.95 cfs @ 12.24 hrs, Volume= 2.017 af, Depth= 2.39" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Area (sf) CN Description 441,314 55 Woods, Good, HSG B 441,314 55 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 11.2 75 0.0660 0.11 Sheet Flow, Woods: Light underbrush n= 0.400 P2= 2.87" 5.3 524 0.1090 1.65 Shallow Concentrated Flow, Woodland Kv= 5.0 fps 16.5 599 Total Subcatchment 44S: North Woods Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)26 24 22 20 18 16 14 12 10 8 6 4 2 0 MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Runoff Area=441,314 sf Runoff Volume=2.017 af Runoff Depth=2.39" Flow Length=599' Tc=16.5 min CN=55 24.95 cfs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 374HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 45S: Central - West Runoff = 39.16 cfs @ 12.13 hrs, Volume= 2.532 af, Depth= 6.41" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Area (sf) CN Description 159,000 95 Urban commercial, 85% imp, HSG D 47,303 80 >75% Grass cover, Good, HSG D 206,303 Weighted Average 71,153 79 34.49% Pervious Area 135,150 98 65.51% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 10.0 Direct Entry, Subcatchment 45S: Central - West Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)42 40 38 36 34 32 30 28 26 24 22 20 18 16 14 12 10 8 6 4 2 0 MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Runoff Area=206,303 sf Runoff Volume=2.532 af Runoff Depth=6.41" Tc=10.0 min CN=WQ 39.16 cfs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 375HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 46S: South Townhomes Runoff = 14.82 cfs @ 12.17 hrs, Volume= 1.019 af, Depth= 5.49" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Area (sf) CN Description 19,025 98 Paved parking, HSG D 78,057 80 >75% Grass cover, Good, HSG D 97,082 Weighted Average 78,057 80 80.40% Pervious Area 19,025 98 19.60% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 11.7 92 0.0320 0.13 Sheet Flow, Grass: Dense n= 0.240 P2= 2.87" 0.9 609 0.5200 10.82 Shallow Concentrated Flow, Grassed Waterway Kv= 15.0 fps 12.6 701 Total Subcatchment 46S: South Townhomes Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Runoff Area=97,082 sf Runoff Volume=1.019 af Runoff Depth=5.49" Flow Length=701' Tc=12.6 min CN=WQ 14.82 cfs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 376HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 47S: Bluff Creek Blvd - West Runoff = 24.48 cfs @ 12.07 hrs, Volume= 1.295 af, Depth= 6.77" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Area (ac) CN Description 0.439 80 >75% Grass cover, Good, HSG D 1.856 98 Paved roads w/curbs & sewers, HSG D 2.295 Weighted Average 0.439 80 19.13% Pervious Area 1.856 98 80.87% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 5.0 Direct Entry, Subcatchment 47S: Bluff Creek Blvd - West Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)26 24 22 20 18 16 14 12 10 8 6 4 2 0 MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Runoff Area=2.295 ac Runoff Volume=1.295 af Runoff Depth=6.77" Tc=5.0 min CN=WQ 24.48 cfs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 377HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 48.1S: Direct to 48P (2) Runoff = 17.66 cfs @ 12.13 hrs, Volume= 1.166 af, Depth= 6.50" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Area (sf) CN Description 29,956 80 >75% Grass cover, Good, HSG D 63,765 98 Paved parking, HSG D 93,721 Weighted Average 29,956 80 31.96% Pervious Area 63,765 98 68.04% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 10.0 Direct Entry, Subcatchment 48.1S: Direct to 48P (2) Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Runoff Area=93,721 sf Runoff Volume=1.166 af Runoff Depth=6.50" Tc=10.0 min CN=WQ 17.66 cfs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 378HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 48S: Bluff Creek Blvd - East Runoff = 36.74 cfs @ 12.07 hrs, Volume= 1.944 af, Depth= 6.78" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Area (ac) CN Description 0.642 80 >75% Grass cover, Good, HSG D 2.799 98 Paved roads w/curbs & sewers, HSG D 3.441 Weighted Average 0.642 80 18.66% Pervious Area 2.799 98 81.34% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 5.0 Direct Entry, Subcatchment 48S: Bluff Creek Blvd - East Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)40 38 36 34 32 30 28 26 24 22 20 18 16 14 12 10 8 6 4 2 0 MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Runoff Area=3.441 ac Runoff Volume=1.944 af Runoff Depth=6.78" Tc=5.0 min CN=WQ 36.74 cfs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 379HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 71-1S: Interlacn Subcatch 1 Runoff = 18.06 cfs @ 12.10 hrs, Volume= 0.959 af, Depth= 5.53" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Area (ac) CN Description * 2.080 84 Weoghted 2.080 84 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 7.0 Direct Entry, Subcatchment 71-1S: Interlacn Subcatch 1 Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Runoff Area=2.080 ac Runoff Volume=0.959 af Runoff Depth=5.53" Tc=7.0 min CN=84 18.06 cfs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 380HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 71-2S: Interlacn Subcatch 2 Runoff = 11.67 cfs @ 12.09 hrs, Volume= 0.716 af, Depth= 7.41" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Area (ac) CN Description * 1.160 100 1.160 100 100.00% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 7.0 Direct Entry, Subcatchment 71-2S: Interlacn Subcatch 2 Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)13 12 11 10 9 8 7 6 5 4 3 2 1 0 MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Runoff Area=1.160 ac Runoff Volume=0.716 af Runoff Depth=7.41" Tc=7.0 min CN=100 11.67 cfs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 381HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 72S: 6_Temp Runoff = 7.25 cfs @ 12.12 hrs, Volume= 0.452 af, Depth= 6.70" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Area (ac) CN Description * 0.810 94 Weighted 0.810 94 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 9.0 Direct Entry, Subcatchment 72S: 6_Temp Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)8 7 6 5 4 3 2 1 0 MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Runoff Area=0.810 ac Runoff Volume=0.452 af Runoff Depth=6.70" Tc=9.0 min CN=94 7.25 cfs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 382HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 73S: N68 Runoff = 23.67 cfs @ 12.09 hrs, Volume= 1.410 af, Depth= 7.17" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Area (ac) CN Description * 2.360 98 Weighted 2.360 98 100.00% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 7.0 Direct Entry, Subcatchment 73S: N68 Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)26 24 22 20 18 16 14 12 10 8 6 4 2 0 MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Runoff Area=2.360 ac Runoff Volume=1.410 af Runoff Depth=7.17" Tc=7.0 min CN=98 23.67 cfs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 383HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 74S: 5_Temp Runoff = 8.78 cfs @ 12.12 hrs, Volume= 0.529 af, Depth= 6.23" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Area (ac) CN Description * 1.020 90 1.020 90 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 9.0 Direct Entry, Subcatchment 74S: 5_Temp Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)9 8 7 6 5 4 3 2 1 0 MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Runoff Area=1.020 ac Runoff Volume=0.529 af Runoff Depth=6.23" Tc=9.0 min CN=90 8.78 cfs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 384HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 75S: 3225 Runoff = 30.19 cfs @ 12.09 hrs, Volume= 1.799 af, Depth= 7.17" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Area (ac) CN Description * 3.010 98 Weighted 3.010 98 100.00% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 7.0 Direct Entry, Subcatchment 75S: 3225 Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)32 30 28 26 24 22 20 18 16 14 12 10 8 6 4 2 0 MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Runoff Area=3.010 ac Runoff Volume=1.799 af Runoff Depth=7.17" Tc=7.0 min CN=98 30.19 cfs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 385HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 76S: 3236 Runoff = 50.13 cfs @ 12.18 hrs, Volume= 3.514 af, Depth= 5.07" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Area (ac) CN Description * 8.310 80 Weighted 8.310 80 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 14.0 Direct Entry, Subcatchment 76S: 3236 Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)55 50 45 40 35 30 25 20 15 10 5 0 MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Runoff Area=8.310 ac Runoff Volume=3.514 af Runoff Depth=5.07" Tc=14.0 min CN=80 50.13 cfs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 386HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 77S: 3238 Runoff = 8.11 cfs @ 12.10 hrs, Volume= 0.429 af, Depth= 5.42" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Area (ac) CN Description * 0.950 83 Weighted 0.950 83 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 7.0 Direct Entry, Subcatchment 77S: 3238 Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)9 8 7 6 5 4 3 2 1 0 MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Runoff Area=0.950 ac Runoff Volume=0.429 af Runoff Depth=5.42" Tc=7.0 min CN=83 8.11 cfs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 387HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 78S: 3243 Runoff = 6.02 cfs @ 12.09 hrs, Volume= 0.333 af, Depth= 6.34" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Area (ac) CN Description * 0.630 91 Weighted 0.630 91 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 7.0 Direct Entry, Subcatchment 78S: 3243 Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)6 5 4 3 2 1 0 MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Runoff Area=0.630 ac Runoff Volume=0.333 af Runoff Depth=6.34" Tc=7.0 min CN=91 6.02 cfs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 388HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 79S: 3245 Runoff = 20.56 cfs @ 12.09 hrs, Volume= 1.225 af, Depth= 7.17" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Area (ac) CN Description * 2.050 98 Weighted 2.050 98 100.00% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 7.0 Direct Entry, Subcatchment 79S: 3245 Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Runoff Area=2.050 ac Runoff Volume=1.225 af Runoff Depth=7.17" Tc=7.0 min CN=98 20.56 cfs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 389HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 80S: 3250 Runoff = 3.31 cfs @ 12.09 hrs, Volume= 0.182 af, Depth= 6.23" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Area (ac) CN Description * 0.350 90 Weighted 0.350 90 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 7.0 Direct Entry, Subcatchment 80S: 3250 Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)3 2 1 0 MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Runoff Area=0.350 ac Runoff Volume=0.182 af Runoff Depth=6.23" Tc=7.0 min CN=90 3.31 cfs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 390HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 81S: 3343 Runoff = 28.32 cfs @ 12.26 hrs, Volume= 2.293 af, Depth= 4.62" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Area (ac) CN Description * 5.950 76 Weighted 5.950 76 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 19.0 Direct Entry, Subcatchment 81S: 3343 Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)30 28 26 24 22 20 18 16 14 12 10 8 6 4 2 0 MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Runoff Area=5.950 ac Runoff Volume=2.293 af Runoff Depth=4.62" Tc=19.0 min CN=76 28.32 cfs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 391HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 82S: 3345 Runoff = 11.48 cfs @ 12.10 hrs, Volume= 0.598 af, Depth= 4.85" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Area (ac) CN Description * 1.480 78 Weighted 1.480 78 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 7.0 Direct Entry, Subcatchment 82S: 3345 Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)12 11 10 9 8 7 6 5 4 3 2 1 0 MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Runoff Area=1.480 ac Runoff Volume=0.598 af Runoff Depth=4.85" Tc=7.0 min CN=78 11.48 cfs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 392HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 83S: 3348 Runoff = 6.36 cfs @ 12.10 hrs, Volume= 0.343 af, Depth= 5.88" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Area (ac) CN Description * 0.700 87 Weighted 0.700 87 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 7.0 Direct Entry, Subcatchment 83S: 3348 Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)7 6 5 4 3 2 1 0 MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Runoff Area=0.700 ac Runoff Volume=0.343 af Runoff Depth=5.88" Tc=7.0 min CN=87 6.36 cfs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 393HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 84S: SE12 Runoff = 13.85 cfs @ 12.15 hrs, Volume= 0.868 af, Depth= 4.96" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Area (ac) CN Description * 2.100 79 Weighted 2.100 79 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 11.0 Direct Entry, Subcatchment 84S: SE12 Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Runoff Area=2.100 ac Runoff Volume=0.868 af Runoff Depth=4.96" Tc=11.0 min CN=79 13.85 cfs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 394HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 85S: 1S Runoff = 20.10 cfs @ 12.21 hrs, Volume= 1.454 af, Depth= 3.85" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Area (ac) CN Description * 4.530 69 Weighted 4.530 69 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 15.0 Direct Entry, Subcatchment 85S: 1S Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Runoff Area=4.530 ac Runoff Volume=1.454 af Runoff Depth=3.85" Tc=15.0 min CN=69 20.10 cfs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 395HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 86S: 2S Runoff = 19.99 cfs @ 12.36 hrs, Volume= 1.862 af, Depth= 3.85" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Area (ac) CN Description * 5.800 69 Weighted 5.800 69 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 25.0 Direct Entry, Subcatchment 86S: 2S Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Runoff Area=5.800 ac Runoff Volume=1.862 af Runoff Depth=3.85" Tc=25.0 min CN=69 19.99 cfs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 396HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 87S: M9 Runoff = 83.28 cfs @ 12.40 hrs, Volume= 8.338 af, Depth= 4.62" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Area (ac) CN Description * 21.638 76 Weighted 21.638 76 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 29.0 Direct Entry, Subcatchment 87S: M9 Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)90 85 80 75 70 65 60 55 50 45 40 35 30 25 20 15 10 5 0 MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41" Runoff Area=21.638 ac Runoff Volume=8.338 af Runoff Depth=4.62" Tc=29.0 min CN=76 83.28 cfs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 397HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Reach 40R: South Drainage [40] Hint: Not Described (Outflow=Inflow) Inflow Area = 51.070 ac, 48.50% Impervious, Inflow Depth = 4.18" for 100y 24hr event Inflow = 82.03 cfs @ 12.26 hrs, Volume= 17.808 af Outflow = 82.03 cfs @ 12.26 hrs, Volume= 17.808 af, Atten= 0%, Lag= 0.0 min Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Reach 40R: South Drainage Inflow Outflow Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)90 85 80 75 70 65 60 55 50 45 40 35 30 25 20 15 10 5 0 Inflow Area=51.070 ac 82.03 cfs 82.03 cfs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 398HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Reach 42.1R: South [40] Hint: Not Described (Outflow=Inflow) Inflow Area = 9.843 ac, 71.43% Impervious, Inflow Depth = 5.01" for 100y 24hr event Inflow = 21.12 cfs @ 12.27 hrs, Volume= 4.113 af Outflow = 21.12 cfs @ 12.27 hrs, Volume= 4.113 af, Atten= 0%, Lag= 0.0 min Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Reach 42.1R: South Inflow Outflow Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 Inflow Area=9.843 ac 21.12 cfs 21.12 cfs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 399HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Reach 42.2R: Southeast [40] Hint: Not Described (Outflow=Inflow) Inflow Area = 11.515 ac, 75.54% Impervious, Inflow Depth = 4.99" for 100y 24hr event Inflow = 10.54 cfs @ 13.02 hrs, Volume= 4.786 af Outflow = 10.54 cfs @ 13.02 hrs, Volume= 4.786 af, Atten= 0%, Lag= 0.0 min Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Reach 42.2R: Southeast Inflow Outflow Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)11 10 9 8 7 6 5 4 3 2 1 0 Inflow Area=11.515 ac 10.54 cfs 10.54 cfs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 400HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Reach 44R: Wetland 4 Channel [40] Hint: Not Described (Outflow=Inflow) Inflow Area = 26.490 ac, 34.12% Impervious, Inflow Depth = 3.74" for 100y 24hr event Inflow = 43.57 cfs @ 12.26 hrs, Volume= 8.267 af Outflow = 43.57 cfs @ 12.26 hrs, Volume= 8.267 af, Atten= 0%, Lag= 0.0 min Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Reach 44R: Wetland 4 Channel Inflow Outflow Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)48 46 44 42 40 38 36 34 32 30 28 26 24 22 20 18 16 14 12 10 8 6 4 2 0 Inflow Area=26.490 ac 43.57 cfs 43.57 cfs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 401HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Reach 48R: Development to Wetland 4 [40] Hint: Not Described (Outflow=Inflow) Inflow Area = 14.497 ac, 62.34% Impervious, Inflow Depth = 4.87" for 100y 24hr event Inflow = 15.12 cfs @ 12.35 hrs, Volume= 5.880 af Outflow = 15.12 cfs @ 12.35 hrs, Volume= 5.880 af, Atten= 0%, Lag= 0.0 min Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Reach 48R: Development to Wetland 4 Inflow Outflow Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 Inflow Area=14.497 ac 15.12 cfs 15.12 cfs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 402HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Reach 72R: N68 [52] Hint: Inlet/Outlet conditions not evaluated [55] Hint: Peak inflow is 185% of Manning's capacity [76] Warning: Detained 0.166 af (Pond w/culvert advised) Inflow Area = 4.190 ac, 56.32% Impervious, Inflow Depth = 6.85" for 100y 24hr event Inflow = 39.13 cfs @ 12.10 hrs, Volume= 2.391 af Outflow = 21.18 cfs @ 12.02 hrs, Volume= 2.391 af, Atten= 46%, Lag= 0.0 min Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Max. Velocity= 7.68 fps, Min. Travel Time= 0.1 min Avg. Velocity = 2.56 fps, Avg. Travel Time= 0.4 min Peak Storage= 198 cf @ 12.03 hrs Average Depth at Peak Storage= 2.00' Bank-Full Depth= 2.00' Flow Area= 3.1 sf, Capacity= 21.17 cfs 24.0" Round Pipe n= 0.012 Length= 63.0' Slope= 0.0075 '/' Inlet Invert= 872.00', Outlet Invert= 871.53' MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 403HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Reach 72R: N68 Inflow Outflow Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)42 40 38 36 34 32 30 28 26 24 22 20 18 16 14 12 10 8 6 4 2 0 Inflow Area=4.190 ac Avg. Flow Depth=2.00' Max Vel=7.68 fps 24.0" Round Pipe n=0.012 L=63.0' S=0.0075 '/' Capacity=21.17 cfs 39.13 cfs 21.18 cfs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 404HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Pond 40.1P: South East Inflow Area = 3.753 ac, 81.66% Impervious, Inflow Depth = 6.79" for 100y 24hr event Inflow = 31.69 cfs @ 12.13 hrs, Volume= 2.122 af Outflow = 3.51 cfs @ 13.12 hrs, Volume= 2.122 af, Atten= 89%, Lag= 59.2 min Discarded = 0.14 cfs @ 12.12 hrs, Volume= 0.496 af Primary = 3.37 cfs @ 13.12 hrs, Volume= 1.626 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 897.13' @ 13.12 hrs Surf.Area= 102,096 sf Storage= 59,401 cf Plug-Flow detention time= 584.2 min calculated for 2.122 af (100% of inflow) Center-of-Mass det. time= 584.2 min ( 1,331.2 - 747.0 ) Volume Invert Avail.Storage Storage Description #1 893.70' 34,978 cf Custom Stage Data (Prismatic) Listed below (Recalc) 117,410 cf Overall - 818 cf Embedded = 116,593 cf x 30.0% Voids #2 896.00' 40,511 cf Custom Stage Data (Prismatic) Listed below (Recalc) 102,096 cf Overall - 818 cf Embedded = 101,278 cf x 40.0% Voids #3 893.70' 818 cf 8.0" Round Pipe Storage Inside #1 L= 2,343.0' #4 896.00' 818 cf 8.0" Round Pipe Storage Inside #2 L= 2,343.0' 77,125 cf Total Available Storage Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 893.70 51,048 0 0 896.00 51,048 117,410 117,410 Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 896.00 51,048 0 0 898.00 51,048 102,096 102,096 Device Routing Invert Outlet Devices #1 Primary 893.70'12.0" Round Culvert L= 260.0' RCP, sq.cut end projecting, Ke= 0.500 Inlet / Outlet Invert= 893.70' / 891.88' S= 0.0070 '/' Cc= 0.900 n= 0.011 Concrete pipe, straight & clean, Flow Area= 0.79 sf #2 Device 1 894.50'8.0" Vert. Orifice/Grate C= 0.600 #3 Device 1 896.67'12.0" Vert. Orifice/Grate C= 0.600 #4 Discarded 893.70'0.060 in/hr Exfiltration over Surface area Phase-In= 0.01' Discarded OutFlow Max=0.14 cfs @ 12.12 hrs HW=896.01' (Free Discharge) 4=Exfiltration (Exfiltration Controls 0.14 cfs) Primary OutFlow Max=3.37 cfs @ 13.12 hrs HW=897.13' TW=0.00' (Dynamic Tailwater) 1=Culvert (Passes 3.37 cfs of 4.80 cfs potential flow) 2=Orifice/Grate (Orifice Controls 2.55 cfs @ 7.30 fps) 3=Orifice/Grate (Orifice Controls 0.82 cfs @ 2.31 fps) MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 405HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Pond 40.1P: South East Inflow Outflow Discarded Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)34 32 30 28 26 24 22 20 18 16 14 12 10 8 6 4 2 0 Inflow Area=3.753 ac Peak Elev=897.13' Storage=59,401 cf 31.69 cfs 3.51 cfs 0.14 cfs 3.37 cfs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 406HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Pond 40.2P: South Central Inflow Area = 4.604 ac, 76.19% Impervious, Inflow Depth = 6.67" for 100y 24hr event Inflow = 38.45 cfs @ 12.13 hrs, Volume= 2.560 af Outflow = 2.33 cfs @ 13.65 hrs, Volume= 2.560 af, Atten= 94%, Lag= 91.3 min Discarded = 0.26 cfs @ 12.40 hrs, Volume= 0.947 af Primary = 2.07 cfs @ 13.65 hrs, Volume= 1.613 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 897.65' @ 13.65 hrs Surf.Area= 188,626 sf Storage= 79,999 cf Plug-Flow detention time= 923.0 min calculated for 2.560 af (100% of inflow) Center-of-Mass det. time= 923.1 min ( 1,671.6 - 748.5 ) Volume Invert Avail.Storage Storage Description #1 895.00' 64,623 cf Custom Stage Data (Prismatic) Listed below (Recalc) 216,920 cf Overall - 1,511 cf Embedded = 215,409 cf x 30.0% Voids #2 897.30' 74,846 cf Custom Stage Data (Prismatic) Listed below (Recalc) 188,626 cf Overall - 1,511 cf Embedded = 187,115 cf x 40.0% Voids #3 895.00' 1,511 cf 8.0" Round Pipe Storage Inside #1 L= 4,328.0' #4 897.30' 1,511 cf 8.0" Round Pipe Storage Inside #2 L= 4,328.0' 142,490 cf Total Available Storage Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 895.00 94,313 0 0 897.30 94,313 216,920 216,920 Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 897.30 94,313 0 0 899.30 94,313 188,626 188,626 Device Routing Invert Outlet Devices #1 Primary 895.00'12.0" Round Culvert L= 250.0' RCP, sq.cut end projecting, Ke= 0.500 Inlet / Outlet Invert= 895.00' / 893.25' S= 0.0070 '/' Cc= 0.900 n= 0.011 Concrete pipe, straight & clean, Flow Area= 0.79 sf #2 Device 1 895.80'8.0" Vert. Orifice/Grate C= 0.600 #3 Device 1 897.97'8.0" Vert. Orifice/Grate C= 0.600 #4 Discarded 895.00'0.060 in/hr Exfiltration over Surface area Phase-In= 0.01' Discarded OutFlow Max=0.26 cfs @ 12.40 hrs HW=897.30' (Free Discharge) 4=Exfiltration (Exfiltration Controls 0.26 cfs) Primary OutFlow Max=2.07 cfs @ 13.65 hrs HW=897.65' TW=0.00' (Dynamic Tailwater) 1=Culvert (Passes 2.07 cfs of 4.36 cfs potential flow) 2=Orifice/Grate (Orifice Controls 2.07 cfs @ 5.94 fps) 3=Orifice/Grate ( Controls 0.00 cfs) MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 407HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Pond 40.2P: South Central Inflow Outflow Discarded Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)42 40 38 36 34 32 30 28 26 24 22 20 18 16 14 12 10 8 6 4 2 0 Inflow Area=4.604 ac Peak Elev=897.65' Storage=79,999 cf 38.45 cfs 2.33 cfs 0.26 cfs2.07 cfs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 408HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Pond 40.3P: South Inflow Area = 5.237 ac, 69.55% Impervious, Inflow Depth = 6.53" for 100y 24hr event Inflow = 43.14 cfs @ 12.13 hrs, Volume= 2.851 af Outflow = 4.24 cfs @ 13.18 hrs, Volume= 2.851 af, Atten= 90%, Lag= 63.0 min Discarded = 0.17 cfs @ 12.09 hrs, Volume= 0.613 af Primary = 4.07 cfs @ 13.18 hrs, Volume= 2.238 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 901.39' @ 13.18 hrs Surf.Area= 120,464 sf Storage= 81,048 cf Plug-Flow detention time= 587.7 min calculated for 2.851 af (100% of inflow) Center-of-Mass det. time= 587.8 min ( 1,338.2 - 750.4 ) Volume Invert Avail.Storage Storage Description #1 897.50' 41,271 cf Custom Stage Data (Prismatic) Listed below (Recalc) 138,534 cf Overall - 965 cf Embedded = 137,569 cf x 30.0% Voids #2 899.80' 47,800 cf Custom Stage Data (Prismatic) Listed below (Recalc) 120,464 cf Overall - 965 cf Embedded = 119,499 cf x 40.0% Voids #3 897.50' 965 cf 8.0" Round Pipe Storage Inside #1 L= 2,764.0' #4 899.80' 965 cf 8.0" Round Pipe Storage Inside #2 L= 2,764.0' 91,000 cf Total Available Storage Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 897.50 60,232 0 0 899.80 60,232 138,534 138,534 Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 899.80 60,232 0 0 901.80 60,232 120,464 120,464 Device Routing Invert Outlet Devices #1 Primary 897.50'12.0" Round Culvert L= 175.0' RCP, sq.cut end projecting, Ke= 0.500 Inlet / Outlet Invert= 897.50' / 896.27' S= 0.0070 '/' Cc= 0.900 n= 0.011 Concrete pipe, straight & clean, Flow Area= 0.79 sf #2 Device 1 898.30'8.0" Vert. Orifice/Grate C= 0.600 #3 Device 1 900.47'8.0" Vert. Orifice/Grate C= 0.600 #4 Discarded 897.50'0.060 in/hr Exfiltration over Surface area Phase-In= 0.01' Discarded OutFlow Max=0.17 cfs @ 12.09 hrs HW=899.84' (Free Discharge) 4=Exfiltration (Exfiltration Controls 0.17 cfs) Primary OutFlow Max=4.07 cfs @ 13.18 hrs HW=901.39' TW=0.00' (Dynamic Tailwater) 1=Culvert (Passes 4.07 cfs of 5.49 cfs potential flow) 2=Orifice/Grate (Orifice Controls 2.79 cfs @ 7.99 fps) 3=Orifice/Grate (Orifice Controls 1.28 cfs @ 3.68 fps) MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 409HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Pond 40.3P: South Inflow Outflow Discarded Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)45 40 35 30 25 20 15 10 5 0 Inflow Area=5.237 ac Peak Elev=901.39' Storage=81,048 cf 43.14 cfs 4.24 cfs 0.17 cfs 4.07 cfs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 410HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Pond 41.1P: South East Inflow Area = 1.607 ac, 85.30% Impervious, Inflow Depth = 6.86" for 100y 24hr event Inflow = 13.67 cfs @ 12.13 hrs, Volume= 0.919 af Outflow = 1.50 cfs @ 13.12 hrs, Volume= 0.919 af, Atten= 89%, Lag= 59.3 min Discarded = 0.06 cfs @ 6.75 hrs, Volume= 0.385 af Primary = 1.44 cfs @ 13.12 hrs, Volume= 0.534 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 889.87' @ 13.12 hrs Surf.Area= 45,024 sf Storage= 25,738 cf Plug-Flow detention time= 850.9 min calculated for 0.919 af (100% of inflow) Center-of-Mass det. time= 851.0 min ( 1,596.9 - 746.0 ) Volume Invert Avail.Storage Storage Description #1 888.00' 30,850 cf Custom Stage Data (Prismatic) Listed below (Recalc) 103,555 cf Overall - 721 cf Embedded = 102,834 cf x 30.0% Voids #2 890.30' 35,731 cf Custom Stage Data (Prismatic) Listed below (Recalc) 90,048 cf Overall - 721 cf Embedded = 89,327 cf x 40.0% Voids #3 888.00' 721 cf 8.0" Round Pipe Storage Inside #1 L= 2,066.0' #4 890.30' 721 cf 8.0" Round Pipe Storage Inside #2 L= 2,066.0' 68,023 cf Total Available Storage Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 888.00 45,024 0 0 890.30 45,024 103,555 103,555 Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 890.30 45,024 0 0 892.30 45,024 90,048 90,048 Device Routing Invert Outlet Devices #1 Primary 888.00'12.0" Round Culvert L= 70.0' RCP, sq.cut end projecting, Ke= 0.500 Inlet / Outlet Invert= 888.00' / 887.51' S= 0.0070 '/' Cc= 0.900 n= 0.011 Concrete pipe, straight & clean, Flow Area= 0.79 sf #2 Device 1 888.80'8.0" Vert. Orifice/Grate C= 0.600 #3 Device 1 890.97'8.0" Vert. Orifice/Grate C= 0.600 #4 Discarded 888.00'0.060 in/hr Exfiltration over Surface area Phase-In= 0.01' Discarded OutFlow Max=0.06 cfs @ 6.75 hrs HW=888.01' (Free Discharge) 4=Exfiltration (Exfiltration Controls 0.06 cfs) Primary OutFlow Max=1.44 cfs @ 13.12 hrs HW=889.87' TW=0.00' (Dynamic Tailwater) 1=Culvert (Passes 1.44 cfs of 4.19 cfs potential flow) 2=Orifice/Grate (Orifice Controls 1.44 cfs @ 4.13 fps) 3=Orifice/Grate ( Controls 0.00 cfs) MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 411HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Pond 41.1P: South East Inflow Outflow Discarded Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 Inflow Area=1.607 ac Peak Elev=889.87' Storage=25,738 cf 13.67 cfs 1.50 cfs 0.06 cfs 1.44 cfs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 412HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Pond 41.2P: South Central Inflow Area = 3.591 ac, 80.17% Impervious, Inflow Depth = 6.75" for 100y 24hr event Inflow = 30.24 cfs @ 12.13 hrs, Volume= 2.021 af Outflow = 15.92 cfs @ 12.28 hrs, Volume= 2.021 af, Atten= 47%, Lag= 8.7 min Discarded = 0.05 cfs @ 11.93 hrs, Volume= 0.150 af Primary = 15.88 cfs @ 12.28 hrs, Volume= 1.871 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 885.73' @ 12.28 hrs Surf.Area= 33,574 sf Storage= 24,905 cf Plug-Flow detention time= 159.5 min calculated for 2.021 af (100% of inflow) Center-of-Mass det. time= 159.6 min ( 907.0 - 747.4 ) Volume Invert Avail.Storage Storage Description #1 881.50' 11,502 cf Custom Stage Data (Prismatic) Listed below (Recalc) 38,610 cf Overall - 269 cf Embedded = 38,341 cf x 30.0% Voids #2 883.80' 13,322 cf Custom Stage Data (Prismatic) Listed below (Recalc) 33,574 cf Overall - 269 cf Embedded = 33,305 cf x 40.0% Voids #3 881.50' 269 cf 8.0" Round Pipe Storage Inside #1 L= 770.0' #4 883.80' 269 cf 8.0" Round Pipe Storage Inside #2 L= 770.0' 25,362 cf Total Available Storage Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 881.50 16,787 0 0 883.80 16,787 38,610 38,610 Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 883.80 16,787 0 0 885.80 16,787 33,574 33,574 Device Routing Invert Outlet Devices #1 Primary 881.50'18.0" Round Culvert L= 22.0' RCP, sq.cut end projecting, Ke= 0.500 Inlet / Outlet Invert= 881.50' / 881.28' S= 0.0100 '/' Cc= 0.900 n= 0.011 Concrete pipe, straight & clean, Flow Area= 1.77 sf #2 Device 1 882.30'15.0" Vert. Orifice/Grate C= 0.600 #3 Device 1 884.47'18.0" Vert. Orifice/Grate C= 0.600 #4 Discarded 881.50'0.060 in/hr Exfiltration over Surface area Phase-In= 0.01' Discarded OutFlow Max=0.05 cfs @ 11.93 hrs HW=883.82' (Free Discharge) 4=Exfiltration (Exfiltration Controls 0.05 cfs) Primary OutFlow Max=15.88 cfs @ 12.28 hrs HW=885.73' TW=0.00' (Dynamic Tailwater) 1=Culvert (Inlet Controls 15.88 cfs @ 8.98 fps) 2=Orifice/Grate (Passes < 9.90 cfs potential flow) 3=Orifice/Grate (Passes < 6.07 cfs potential flow) MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 413HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Pond 41.2P: South Central Inflow Outflow Discarded Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)32 30 28 26 24 22 20 18 16 14 12 10 8 6 4 2 0 Inflow Area=3.591 ac Peak Elev=885.73' Storage=24,905 cf 30.24 cfs 15.92 cfs 0.05 cfs 15.88 cfs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 414HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Pond 41.3P: South West Inflow Area = 0.686 ac, 93.81% Impervious, Inflow Depth = 7.04" for 100y 24hr event Inflow = 5.94 cfs @ 12.13 hrs, Volume= 0.403 af Outflow = 1.10 cfs @ 12.64 hrs, Volume= 0.403 af, Atten= 82%, Lag= 30.7 min Discarded = 0.03 cfs @ 6.81 hrs, Volume= 0.180 af Primary = 1.07 cfs @ 12.64 hrs, Volume= 0.223 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 891.29' @ 12.64 hrs Surf.Area= 22,024 sf Storage= 10,393 cf Plug-Flow detention time= 822.7 min calculated for 0.403 af (100% of inflow) Center-of-Mass det. time= 822.7 min ( 1,566.4 - 743.8 ) Volume Invert Avail.Storage Storage Description #1 889.75' 15,091 cf Custom Stage Data (Prismatic) Listed below (Recalc) 50,655 cf Overall - 353 cf Embedded = 50,303 cf x 30.0% Voids #2 892.05' 17,478 cf Custom Stage Data (Prismatic) Listed below (Recalc) 44,048 cf Overall - 353 cf Embedded = 43,695 cf x 40.0% Voids #3 889.75' 353 cf 8.0" Round Pipe Storage Inside #1 L= 1,010.0' #4 892.05' 353 cf 8.0" Round Pipe Storage Inside #2 L= 1,010.0' 33,274 cf Total Available Storage Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 889.75 22,024 0 0 892.05 22,024 50,655 50,655 Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 892.05 22,024 0 0 894.05 22,024 44,048 44,048 Device Routing Invert Outlet Devices #1 Primary 889.75'12.0" Round Culvert L= 45.0' RCP, sq.cut end projecting, Ke= 0.500 Inlet / Outlet Invert= 889.75' / 889.43' S= 0.0071 '/' Cc= 0.900 n= 0.011 Concrete pipe, straight & clean, Flow Area= 0.79 sf #2 Device 1 890.55'8.0" Vert. Orifice/Grate C= 0.600 #3 Device 1 892.72'8.0" Vert. Orifice/Grate C= 0.600 #4 Discarded 889.75'0.060 in/hr Exfiltration over Surface area Phase-In= 0.01' Discarded OutFlow Max=0.03 cfs @ 6.81 hrs HW=889.76' (Free Discharge) 4=Exfiltration (Exfiltration Controls 0.03 cfs) Primary OutFlow Max=1.07 cfs @ 12.64 hrs HW=891.29' TW=0.00' (Dynamic Tailwater) 1=Culvert (Passes 1.07 cfs of 3.68 cfs potential flow) 2=Orifice/Grate (Orifice Controls 1.07 cfs @ 3.05 fps) 3=Orifice/Grate ( Controls 0.00 cfs) MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 415HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Pond 41.3P: South West Inflow Outflow Discarded Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)6 5 4 3 2 1 0 Inflow Area=0.686 ac Peak Elev=891.29' Storage=10,393 cf 5.94 cfs 1.10 cfs 0.03 cfs 1.07 cfs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 416HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Pond 44P: Wetland 4 Inflow Area = 24.628 ac, 36.70% Impervious, Inflow Depth = 3.85" for 100y 24hr event Inflow = 39.40 cfs @ 12.25 hrs, Volume= 7.897 af Outflow = 39.38 cfs @ 12.26 hrs, Volume= 7.896 af, Atten= 0%, Lag= 0.3 min Primary = 39.38 cfs @ 12.26 hrs, Volume= 7.896 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 884.77' @ 12.26 hrs Surf.Area= 2,795 sf Storage= 1,353 cf Plug-Flow detention time= 1.8 min calculated for 7.896 af (100% of inflow) Center-of-Mass det. time= 1.4 min ( 980.4 - 978.9 ) Volume Invert Avail.Storage Storage Description #1 884.00' 37,633 cf Custom Stage Data (Prismatic) Listed below (Recalc) Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 884.00 870 0 0 884.50 1,980 713 713 885.00 3,500 1,370 2,083 886.00 7,800 5,650 7,733 887.00 14,000 10,900 18,633 888.00 24,000 19,000 37,633 Device Routing Invert Outlet Devices #1 Primary 884.03'Asymmetrical Weir, C= 3.27 Offset (feet) 0.00 51.00 133.60 176.00 217.30 239.00 Elev. (feet) 889.78 886.05 884.03 885.84 889.00 889.78 Primary OutFlow Max=39.38 cfs @ 12.26 hrs HW=884.77' TW=0.00' (Dynamic Tailwater) 1=Asymmetrical Weir (Weir Controls 39.38 cfs @ 1.12 fps) MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 417HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Pond 44P: Wetland 4 Inflow Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)44 42 40 38 36 34 32 30 28 26 24 22 20 18 16 14 12 10 8 6 4 2 0 Inflow Area=24.628 ac Peak Elev=884.77' Storage=1,353 cf 39.40 cfs 39.38 cfs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 418HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Pond 46P: Triangle Basin Inflow Area = 2.229 ac, 19.60% Impervious, Inflow Depth = 5.49" for 100y 24hr event Inflow = 14.82 cfs @ 12.17 hrs, Volume= 1.019 af Outflow = 10.09 cfs @ 12.29 hrs, Volume= 1.019 af, Atten= 32%, Lag= 7.2 min Discarded = 0.01 cfs @ 12.29 hrs, Volume= 0.014 af Primary = 10.08 cfs @ 12.29 hrs, Volume= 1.005 af Secondary = 0.00 cfs @ 0.00 hrs, Volume= 0.000 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 888.74' @ 12.29 hrs Surf.Area= 6,766 sf Storage= 5,342 cf Plug-Flow detention time= 29.2 min calculated for 1.019 af (100% of inflow) Center-of-Mass det. time= 29.3 min ( 799.8 - 770.5 ) Volume Invert Avail.Storage Storage Description #1 884.37' 1,087 cf Sand section (Prismatic) Listed below (Recalc) 3,648 cf Overall - 24 cf Embedded = 3,623 cf x 30.0% Voids #2 884.37' 24 cf 8.0" Round Pipe Storage Inside #1 L= 70.0' #3 886.67' 159 cf Topsoil (Prismatic) Listed below (Recalc) 793 cf Overall x 20.0% Voids #4 887.17' 14,801 cf Open pond (Prismatic) Listed below (Recalc) 16,071 cf Total Available Storage Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 884.37 1,586 0 0 886.67 1,586 3,648 3,648 Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 886.67 1,586 0 0 887.17 1,586 793 793 Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 887.17 1,586 0 0 890.90 6,350 14,801 14,801 Device Routing Invert Outlet Devices #1 Primary 884.37'18.0" Round Culvert L= 125.0' RCP, sq.cut end projecting, Ke= 0.500 Inlet / Outlet Invert= 884.37' / 884.00' S= 0.0030 '/' Cc= 0.900 n= 0.011 Concrete pipe, straight & clean, Flow Area= 1.77 sf #2 Device 1 885.17'12.0" Vert. Orifice/Grate C= 0.600 #3 Device 1 887.41'12.0" Vert. Orifice/Grate C= 0.600 #4 Secondary 890.75'20.0' long x 5.0' breadth Broad-Crested Rectangular Weir Head (feet) 0.20 0.40 0.60 0.80 1.00 1.20 1.40 1.60 1.80 2.00 2.50 3.00 3.50 4.00 4.50 5.00 5.50 Coef. (English) 2.34 2.50 2.70 2.68 2.68 2.66 2.65 2.65 2.65 MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 419HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC 2.65 2.67 2.66 2.68 2.70 2.74 2.79 2.88 #5 Discarded 884.37'0.060 in/hr Exfiltration over Surface area Phase-In= 0.01' Discarded OutFlow Max=0.01 cfs @ 12.29 hrs HW=888.74' (Free Discharge) 5=Exfiltration (Exfiltration Controls 0.01 cfs) Primary OutFlow Max=10.08 cfs @ 12.29 hrs HW=888.74' TW=0.00' (Dynamic Tailwater) 1=Culvert (Passes 10.08 cfs of 14.42 cfs potential flow) 2=Orifice/Grate (Orifice Controls 6.63 cfs @ 8.44 fps) 3=Orifice/Grate (Orifice Controls 3.45 cfs @ 4.39 fps) Secondary OutFlow Max=0.00 cfs @ 0.00 hrs HW=884.37' TW=0.00' (Dynamic Tailwater) 4=Broad-Crested Rectangular Weir ( Controls 0.00 cfs) Pond 46P: Triangle Basin Inflow Outflow Discarded Primary Secondary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 Inflow Area=2.229 ac Peak Elev=888.74' Storage=5,342 cf 14.82 cfs 10.09 cfs 0.01 cfs 10.08 cfs 0.00 cfs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 420HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Pond 47P: Bluff Creek - West Basin Inflow Area = 7.031 ac, 70.52% Impervious, Inflow Depth = 6.53" for 100y 24hr event Inflow = 58.16 cfs @ 12.10 hrs, Volume= 3.826 af Outflow = 3.18 cfs @ 13.66 hrs, Volume= 3.826 af, Atten= 95%, Lag= 93.3 min Discarded = 0.30 cfs @ 12.15 hrs, Volume= 1.189 af Primary = 2.88 cfs @ 13.66 hrs, Volume= 2.638 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 911.58' @ 13.66 hrs Surf.Area= 214,600 sf Storage= 122,722 cf Plug-Flow detention time= 909.7 min calculated for 3.826 af (100% of inflow) Center-of-Mass det. time= 909.8 min ( 1,661.7 - 751.9 ) Volume Invert Avail.Storage Storage Description #1 908.20' 73,521 cf Custom Stage Data (Prismatic) Listed below (Recalc) 246,790 cf Overall - 1,719 cf Embedded = 245,071 cf x 30.0% Voids #2 910.50' 85,152 cf Custom Stage Data (Prismatic) Listed below (Recalc) 214,600 cf Overall - 1,719 cf Embedded = 212,881 cf x 40.0% Voids #3 908.20' 1,719 cf 8.0" Round Pipe Storage Inside #1 L= 4,925.0' #4 910.50' 1,719 cf 8.0" Round Pipe Storage Inside #2 L= 4,925.0' 162,112 cf Total Available Storage Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 908.20 107,300 0 0 910.50 107,300 246,790 246,790 Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 910.50 107,300 0 0 912.50 107,300 214,600 214,600 Device Routing Invert Outlet Devices #1 Primary 908.20'12.0" Round Culvert L= 307.0' RCP, square edge headwall, Ke= 0.500 Inlet / Outlet Invert= 908.20' / 905.13' S= 0.0100 '/' Cc= 0.900 n= 0.011 Concrete pipe, straight & clean, Flow Area= 0.79 sf #2 Device 1 909.00'8.0" Vert. Orifice/Grate C= 0.600 #3 Device 1 911.24'8.0" Vert. Orifice/Grate C= 0.600 #4 Discarded 908.20'0.060 in/hr Exfiltration over Surface area Phase-In= 0.01' Discarded OutFlow Max=0.30 cfs @ 12.15 hrs HW=910.50' (Free Discharge) 4=Exfiltration (Exfiltration Controls 0.30 cfs) Primary OutFlow Max=2.88 cfs @ 13.66 hrs HW=911.58' TW=0.00' (Dynamic Tailwater) 1=Culvert (Passes 2.88 cfs of 5.08 cfs potential flow) 2=Orifice/Grate (Orifice Controls 2.52 cfs @ 7.22 fps) 3=Orifice/Grate (Orifice Controls 0.36 cfs @ 1.99 fps) MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 421HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Pond 47P: Bluff Creek - West Basin Inflow Outflow Discarded Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)65 60 55 50 45 40 35 30 25 20 15 10 5 0 Inflow Area=7.031 ac Peak Elev=911.58' Storage=122,722 cf 58.16 cfs 3.18 cfs 0.30 cfs2.88 cfs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 422HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Pond 48P: Bluff Creek - East Basin Inflow Area = 3.441 ac, 81.34% Impervious, Inflow Depth = 6.78" for 100y 24hr event Inflow = 36.74 cfs @ 12.07 hrs, Volume= 1.944 af Outflow = 2.66 cfs @ 13.12 hrs, Volume= 1.944 af, Atten= 93%, Lag= 62.7 min Discarded = 0.14 cfs @ 12.09 hrs, Volume= 0.501 af Primary = 2.52 cfs @ 13.12 hrs, Volume= 1.443 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 898.56' @ 13.12 hrs Surf.Area= 104,170 sf Storage= 55,932 cf Plug-Flow detention time= 630.3 min calculated for 1.944 af (100% of inflow) Center-of-Mass det. time= 630.3 min ( 1,372.7 - 742.4 ) Volume Invert Avail.Storage Storage Description #1 895.35' 35,688 cf Custom Stage Data (Prismatic) Listed below (Recalc) 119,795 cf Overall - 834 cf Embedded = 118,961 cf x 30.0% Voids #2 897.65' 41,334 cf Custom Stage Data (Prismatic) Listed below (Recalc) 104,170 cf Overall - 834 cf Embedded = 103,336 cf x 40.0% Voids #3 895.35' 834 cf 8.0" Round Pipe Storage Inside #1 L= 2,390.0' #4 897.65' 834 cf 8.0" Round Pipe Storage Inside #2 L= 2,390.0' 78,691 cf Total Available Storage Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 895.35 52,085 0 0 897.65 52,085 119,795 119,795 Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 897.65 52,085 0 0 899.65 52,085 104,170 104,170 Device Routing Invert Outlet Devices #1 Primary 895.35'12.0" Round Culvert L= 637.0' RCP, square edge headwall, Ke= 0.500 Inlet / Outlet Invert= 895.35' / 888.98' S= 0.0100 '/' Cc= 0.900 n= 0.011 Concrete pipe, straight & clean, Flow Area= 0.79 sf #2 Device 1 896.15'8.0" Vert. Orifice/Grate C= 0.600 #3 Device 1 898.39'8.0" Vert. Orifice/Grate C= 0.600 #4 Discarded 895.35'0.060 in/hr Exfiltration over Surface area Phase-In= 0.01' Discarded OutFlow Max=0.14 cfs @ 12.09 hrs HW=897.70' (Free Discharge) 4=Exfiltration (Exfiltration Controls 0.14 cfs) Primary OutFlow Max=2.52 cfs @ 13.12 hrs HW=898.56' TW=0.00' (Dynamic Tailwater) 1=Culvert (Passes 2.52 cfs of 4.64 cfs potential flow) 2=Orifice/Grate (Orifice Controls 2.42 cfs @ 6.93 fps) 3=Orifice/Grate (Orifice Controls 0.10 cfs @ 1.39 fps) MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 423HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Pond 48P: Bluff Creek - East Basin Inflow Outflow Discarded Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)40 38 36 34 32 30 28 26 24 22 20 18 16 14 12 10 8 6 4 2 0 Inflow Area=3.441 ac Peak Elev=898.56' Storage=55,932 cf 36.74 cfs 2.66 cfs 0.14 cfs2.52 cfs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 424HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Pond 48P(2): Bluff Creek - East Basin Inflow Area = 2.152 ac, 68.04% Impervious, Inflow Depth = 6.50" for 100y 24hr event Inflow = 17.66 cfs @ 12.13 hrs, Volume= 1.166 af Outflow = 2.81 cfs @ 12.69 hrs, Volume= 1.166 af, Atten= 84%, Lag= 33.3 min Discarded = 0.07 cfs @ 12.11 hrs, Volume= 0.220 af Primary = 2.74 cfs @ 12.69 hrs, Volume= 0.945 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 899.20' @ 12.69 hrs Surf.Area= 48,858 sf Storage= 28,575 cf Plug-Flow detention time= 420.0 min calculated for 1.165 af (100% of inflow) Center-of-Mass det. time= 420.1 min ( 1,171.0 - 750.9 ) Volume Invert Avail.Storage Storage Description #1 895.75' 16,739 cf Custom Stage Data (Prismatic) Listed below (Recalc) 56,187 cf Overall - 391 cf Embedded = 55,795 cf x 30.0% Voids #2 898.05' 19,387 cf Custom Stage Data (Prismatic) Listed below (Recalc) 48,858 cf Overall - 391 cf Embedded = 48,467 cf x 40.0% Voids #3 895.75' 391 cf 8.0" Round Pipe Storage Inside #1 L= 1,121.0' #4 898.05' 391 cf 8.0" Round Pipe Storage Inside #2 L= 1,121.0' 36,908 cf Total Available Storage Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 895.75 24,429 0 0 898.05 24,429 56,187 56,187 Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 898.05 24,429 0 0 900.05 24,429 48,858 48,858 Device Routing Invert Outlet Devices #1 Primary 895.75'8.0" Round Culvert L= 50.0' RCP, square edge headwall, Ke= 0.500 Inlet / Outlet Invert= 895.75' / 895.25' S= 0.0100 '/' Cc= 0.900 n= 0.011 Concrete pipe, straight & clean, Flow Area= 0.35 sf #2 Device 1 896.55'8.0" Vert. Orifice/Grate C= 0.600 #3 Device 1 898.79'8.0" Vert. Orifice/Grate C= 0.600 #4 Discarded 895.75'0.060 in/hr Exfiltration over Surface area Phase-In= 0.01' Discarded OutFlow Max=0.07 cfs @ 12.11 hrs HW=898.09' (Free Discharge) 4=Exfiltration (Exfiltration Controls 0.07 cfs) Primary OutFlow Max=2.74 cfs @ 12.69 hrs HW=899.20' TW=0.00' (Dynamic Tailwater) 1=Culvert (Barrel Controls 2.74 cfs @ 7.85 fps) 2=Orifice/Grate (Passes < 2.56 cfs potential flow) 3=Orifice/Grate (Passes < 0.49 cfs potential flow) MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 425HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Pond 48P(2): Bluff Creek - East Basin Inflow Outflow Discarded Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 Inflow Area=2.152 ac Peak Elev=899.20' Storage=28,575 cf 17.66 cfs 2.81 cfs 0.07 cfs 2.74 cfs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 426HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Pond 71P: Interlachen [63] Warning: Exceeded Reach 72R INLET depth by 2.96' @ 13.18 hrs Inflow Area = 30.860 ac, 27.80% Impervious, Inflow Depth = 5.75" for 100y 24hr event Inflow = 190.89 cfs @ 12.11 hrs, Volume= 14.781 af Outflow = 32.11 cfs @ 12.76 hrs, Volume= 14.766 af, Atten= 83%, Lag= 38.8 min Primary = 32.11 cfs @ 12.76 hrs, Volume= 14.766 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 875.52' @ 12.94 hrs Surf.Area= 77,353 sf Storage= 343,535 cf Plug-Flow detention time= 904.8 min calculated for 14.766 af (100% of inflow) Center-of-Mass det. time= 904.7 min ( 1,668.2 - 763.5 ) Volume Invert Avail.Storage Storage Description #1 870.00' 381,460 cf Custom Stage Data (Prismatic) Listed below (Recalc) Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 870.00 50,570 0 0 872.00 56,860 107,430 107,430 875.00 74,330 196,785 304,215 876.00 80,160 77,245 381,460 Device Routing Invert Outlet Devices #1 Primary 870.00'24.0" Round Culvert L= 33.0' RCP, square edge headwall, Ke= 0.500 Inlet / Outlet Invert= 870.00' / 869.67' S= 0.0100 '/' Cc= 0.900 n= 0.012, Flow Area= 3.14 sf #2 Device 1 866.61'24.0" Round Culvert L= 21.0' RCP, end-section conforming to fill, Ke= 0.500 Inlet / Outlet Invert= 866.50' / 866.61' S= -0.0052 '/' Cc= 0.900 n= 0.012, Flow Area= 3.14 sf Primary OutFlow Max=32.09 cfs @ 12.76 hrs HW=875.51' TW=871.01' (Dynamic Tailwater) 1=Culvert ( Controls 32.09 cfs) 2=Culvert (Inlet Controls 32.09 cfs @ 10.21 fps) MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 427HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Pond 71P: Interlachen Inflow Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)210 200 190 180 170 160 150 140 130 120 110 100 90 80 70 60 50 40 30 20 10 0 Inflow Area=30.860 ac Peak Elev=875.52' Storage=343,535 cf 190.89 cfs 32.11 cfs MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 428HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Pond 72P: South MNDOT M9 Wetland Inflow Area = 115.998 ac, 28.75% Impervious, Inflow Depth = 4.67" for 100y 24hr event Inflow = 230.15 cfs @ 12.31 hrs, Volume= 45.097 af Outflow = 6.25 cfs @ 22.71 hrs, Volume= 44.695 af, Atten= 97%, Lag= 623.7 min Primary = 6.25 cfs @ 22.71 hrs, Volume= 44.695 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 872.73' @ 22.71 hrs Surf.Area= 558,513 sf Storage= 1,532,401 cf Plug-Flow detention time= 3,223.3 min calculated for 44.693 af (99% of inflow) Center-of-Mass det. time= 3,156.1 min ( 4,295.4 - 1,139.3 ) Volume Invert Avail.Storage Storage Description #1 869.50' 2,891,990 cf Custom Stage Data (Prismatic) Listed below (Recalc) Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 869.50 214,970 0 0 870.00 433,070 162,010 162,010 871.00 489,600 461,335 623,345 872.00 532,650 511,125 1,134,470 875.00 639,030 1,757,520 2,891,990 Device Routing Invert Outlet Devices #1 Primary 869.00'18.0" Round Culvert L= 276.0' RCP, square edge headwall, Ke= 0.500 Inlet / Outlet Invert= 869.00' / 866.93' S= 0.0075 '/' Cc= 0.900 n= 0.013 Concrete pipe, straight & clean, Flow Area= 1.77 sf #2 Device 1 869.50'12.0" Vert. Orifice/Grate C= 0.600 #3 Device 2 869.36'18.0" Round Culvert L= 172.0' RCP, end-section conforming to fill, Ke= 0.500 Inlet / Outlet Invert= 868.50' / 869.36' S= -0.0050 '/' Cc= 0.900 n= 0.013 Concrete pipe, straight & clean, Flow Area= 1.77 sf Primary OutFlow Max=6.25 cfs @ 22.71 hrs HW=872.73' (Free Discharge) 1=Culvert (Passes 6.25 cfs of 11.49 cfs potential flow) 2=Orifice/Grate (Orifice Controls 6.25 cfs @ 7.95 fps) 3=Culvert (Passes 6.25 cfs of 10.87 cfs potential flow) MN-RPBCWD_v1_Atlas14_24-hr100y_S1 100y 24hr Rainfall=7.41"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 429HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Pond 72P: South MNDOT M9 Wetland Inflow Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)240 220 200 180 160 140 120 100 80 60 40 20 0 Inflow Area=115.998 ac Peak Elev=872.73' Storage=1,532,401 cf 230.15 cfs 6.25 cfs Type II 24-hr 100y 24hr Old Rainfall=6.00"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 430HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Time span=0.00-360.00 hrs, dt=0.01 hrs, 36001 points Runoff by SCS TR-20 method, UH=SCS, Weighted-Q Reach routing by Dyn-Stor-Ind method - Pond routing by Dyn-Stor-Ind method Runoff Area=163,468 sf 81.66% Impervious Runoff Depth=5.40"Subcatchment 40.1S: South - East Tc=10.0 min CN=WQ Runoff=27.06 cfs 1.688 af Runoff Area=200,567 sf 76.19% Impervious Runoff Depth=5.29"Subcatchment 40.2S: South - Central Tc=10.0 min CN=WQ Runoff=32.75 cfs 2.030 af Runoff Area=228,145 sf 69.55% Impervious Runoff Depth=5.16"Subcatchment 40.3S: South - West Tc=10.0 min CN=WQ Runoff=36.63 cfs 2.252 af Runoff Area=69,984 sf 85.30% Impervious Runoff Depth=5.47"Subcatchment 41.1S: South - East Tc=10.0 min CN=WQ Runoff=11.69 cfs 0.732 af Runoff Area=156,419 sf 80.17% Impervious Runoff Depth=5.37"Subcatchment 41.2S: South - Central Tc=10.0 min CN=WQ Runoff=25.80 cfs 1.607 af Runoff Area=29,884 sf 93.81% Impervious Runoff Depth=5.64"Subcatchment 41.3S: South - west Tc=10.0 min CN=WQ Runoff=5.10 cfs 0.322 af Runoff Area=41,871 sf 0.00% Impervious Runoff Depth=3.78"Subcatchment 42.1S: South Tc=5.0 min CN=80 Runoff=6.57 cfs 0.303 af Runoff Area=24,525 sf 0.00% Impervious Runoff Depth=3.78"Subcatchment 42.2S: Southeast Tc=5.0 min CN=80 Runoff=3.85 cfs 0.177 af Runoff Area=3.222 ac 0.00% Impervious Runoff Depth=1.52"Subcatchment 43.1S: East Woods Flow Length=530' Tc=15.2 min CN=55 Runoff=5.73 cfs 0.408 af Runoff Area=1.862 ac 0.00% Impervious Runoff Depth=1.52"Subcatchment 43.2S: Northeast Woods Flow Length=623' Tc=19.5 min CN=55 Runoff=2.85 cfs 0.236 af Runoff Area=441,314 sf 0.00% Impervious Runoff Depth=1.52"Subcatchment 44S: North Woods Flow Length=599' Tc=16.5 min CN=55 Runoff=17.17 cfs 1.281 af Runoff Area=206,303 sf 65.51% Impervious Runoff Depth=5.04"Subcatchment 45S: Central - West Tc=10.0 min CN=WQ Runoff=33.24 cfs 1.988 af Runoff Area=97,082 sf 19.60% Impervious Runoff Depth=4.17"Subcatchment 46S: South Townhomes Flow Length=701' Tc=12.6 min CN=WQ Runoff=12.45 cfs 0.774 af Runoff Area=2.295 ac 80.87% Impervious Runoff Depth=5.38"Subcatchment 47S: Bluff Creek Blvd - West Tc=5.0 min CN=WQ Runoff=19.38 cfs 1.029 af Runoff Area=93,721 sf 68.04% Impervious Runoff Depth=5.13"Subcatchment 48.1S: Direct to 48P (2) Tc=10.0 min CN=WQ Runoff=14.99 cfs 0.920 af Runoff Area=3.441 ac 81.34% Impervious Runoff Depth=5.39"Subcatchment 48S: Bluff Creek Blvd - East Tc=5.0 min CN=WQ Runoff=29.09 cfs 1.546 af Type II 24-hr 100y 24hr Old Rainfall=6.00"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 431HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Runoff Area=2.080 ac 0.00% Impervious Runoff Depth=4.20"Subcatchment 71-1S: Interlacn Subcatch 1 Tc=7.0 min CN=84 Runoff=14.45 cfs 0.727 af Runoff Area=1.160 ac 100.00% Impervious Runoff Depth=6.00"Subcatchment 71-2S: Interlacn Subcatch 2 Tc=7.0 min CN=100 Runoff=9.65 cfs 0.580 af Runoff Area=0.810 ac 0.00% Impervious Runoff Depth=5.30"Subcatchment 72S: 6_Temp Tc=9.0 min CN=94 Runoff=6.12 cfs 0.358 af Runoff Area=2.360 ac 100.00% Impervious Runoff Depth=5.76"Subcatchment 73S: N68 Tc=7.0 min CN=98 Runoff=19.55 cfs 1.133 af Runoff Area=1.020 ac 0.00% Impervious Runoff Depth=4.85"Subcatchment 74S: 5_Temp Tc=9.0 min CN=90 Runoff=7.34 cfs 0.412 af Runoff Area=3.010 ac 100.00% Impervious Runoff Depth=5.76"Subcatchment 75S: 3225 Tc=7.0 min CN=98 Runoff=24.94 cfs 1.445 af Runoff Area=8.310 ac 0.00% Impervious Runoff Depth=3.78"Subcatchment 76S: 3236 Tc=14.0 min CN=80 Runoff=41.78 cfs 2.619 af Runoff Area=0.950 ac 0.00% Impervious Runoff Depth=4.09"Subcatchment 77S: 3238 Tc=7.0 min CN=83 Runoff=6.47 cfs 0.324 af Runoff Area=0.630 ac 0.00% Impervious Runoff Depth=4.96"Subcatchment 78S: 3243 Tc=7.0 min CN=91 Runoff=4.91 cfs 0.260 af Runoff Area=2.050 ac 100.00% Impervious Runoff Depth=5.76"Subcatchment 79S: 3245 Tc=7.0 min CN=98 Runoff=16.98 cfs 0.984 af Runoff Area=0.350 ac 0.00% Impervious Runoff Depth=4.85"Subcatchment 80S: 3250 Tc=7.0 min CN=90 Runoff=2.69 cfs 0.141 af Runoff Area=5.950 ac 0.00% Impervious Runoff Depth=3.38"Subcatchment 81S: 3343 Tc=19.0 min CN=76 Runoff=23.03 cfs 1.676 af Runoff Area=1.480 ac 0.00% Impervious Runoff Depth=3.58"Subcatchment 82S: 3345 Tc=7.0 min CN=78 Runoff=9.00 cfs 0.441 af Runoff Area=0.700 ac 0.00% Impervious Runoff Depth=4.52"Subcatchment 83S: 3348 Tc=7.0 min CN=87 Runoff=5.14 cfs 0.264 af Runoff Area=2.100 ac 0.00% Impervious Runoff Depth=3.68"Subcatchment 84S: SE12 Tc=11.0 min CN=79 Runoff=11.37 cfs 0.644 af Runoff Area=4.530 ac 0.00% Impervious Runoff Depth=2.71"Subcatchment 85S: 1S Tc=15.0 min CN=69 Runoff=15.88 cfs 1.024 af Runoff Area=5.800 ac 0.00% Impervious Runoff Depth=2.71"Subcatchment 86S: 2S Tc=25.0 min CN=69 Runoff=15.17 cfs 1.311 af Type II 24-hr 100y 24hr Old Rainfall=6.00"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 432HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Runoff Area=21.638 ac 0.00% Impervious Runoff Depth=3.38"Subcatchment 87S: M9 Tc=29.0 min CN=76 Runoff=64.89 cfs 6.095 af Inflow=60.35 cfs 12.617 afReach 40R: South Drainage Outflow=60.35 cfs 12.617 af Inflow=15.11 cfs 2.993 afReach 42.1R: South Outflow=15.11 cfs 2.993 af Inflow=8.24 cfs 3.428 afReach 42.2R: Southeast Outflow=8.24 cfs 3.428 af Inflow=32.68 cfs 5.788 afReach 44R: Wetland 4 Channel Outflow=32.68 cfs 5.788 af Inflow=12.85 cfs 4.272 afReach 48R: Development to Wetland 4 Outflow=12.85 cfs 4.272 af Avg. Flow Depth=2.00' Max Vel=7.68 fps Inflow=32.77 cfs 1.903 afReach 72R: N68 24.0" Round Pipe n=0.012 L=63.0' S=0.0075 '/' Capacity=21.17 cfs Outflow=21.75 cfs 1.903 af Peak Elev=896.38' Storage=43,869 cf Inflow=27.06 cfs 1.688 afPond 40.1P: South East Discarded=0.14 cfs 0.499 af Primary=2.09 cfs 1.189 af Outflow=2.23 cfs 1.688 af Peak Elev=896.91' Storage=55,137 cf Inflow=32.75 cfs 2.030 afPond 40.2P: South Central Discarded=0.13 cfs 0.923 af Primary=1.48 cfs 1.107 af Outflow=1.61 cfs 2.030 af Peak Elev=900.48' Storage=59,306 cf Inflow=36.63 cfs 2.252 afPond 40.3P: South Discarded=0.17 cfs 0.617 af Primary=2.29 cfs 1.635 af Outflow=2.45 cfs 2.252 af Peak Elev=889.36' Storage=18,911 cf Inflow=11.69 cfs 0.732 afPond 41.1P: South East Discarded=0.06 cfs 0.409 af Primary=0.80 cfs 0.324 af Outflow=0.87 cfs 0.732 af Peak Elev=885.34' Storage=22,276 cf Inflow=25.80 cfs 1.607 afPond 41.2P: South Central Discarded=0.05 cfs 0.153 af Primary=12.56 cfs 1.454 af Outflow=12.61 cfs 1.607 af Peak Elev=890.94' Storage=8,134 cf Inflow=5.10 cfs 0.322 afPond 41.3P: South West Discarded=0.03 cfs 0.193 af Primary=0.46 cfs 0.129 af Outflow=0.49 cfs 0.322 af Peak Elev=884.69' Storage=1,146 cf Inflow=29.89 cfs 5.554 afPond 44P: Wetland 4 Outflow=29.87 cfs 5.553 af Peak Elev=888.42' Storage=4,256 cf Inflow=12.45 cfs 0.774 afPond 46P: Triangle Basin Discarded=0.01 cfs 0.014 af Primary=8.98 cfs 0.760 af Secondary=0.00 cfs 0.000 af Outflow=8.99 cfs 0.774 af Peak Elev=910.68' Storage=83,341 cf Inflow=49.96 cfs 3.018 afPond 47P: Bluff Creek - West Basin Discarded=0.30 cfs 1.141 af Primary=1.95 cfs 1.877 af Outflow=2.25 cfs 3.018 af Peak Elev=897.82' Storage=40,126 cf Inflow=29.09 cfs 1.546 afPond 48P: Bluff Creek - East Basin Discarded=0.14 cfs 0.502 af Primary=1.94 cfs 1.045 af Outflow=2.09 cfs 1.546 af Type II 24-hr 100y 24hr Old Rainfall=6.00"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 433HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Peak Elev=898.48' Storage=21,529 cf Inflow=14.99 cfs 0.920 afPond 48P(2): Bluff Creek - East Basin Discarded=0.07 cfs 0.226 af Primary=2.13 cfs 0.693 af Outflow=2.19 cfs 0.920 af Peak Elev=874.01' Storage=233,723 cf Inflow=165.43 cfs 11.364 afPond 71P: Interlachen Outflow=26.26 cfs 11.351 af Peak Elev=871.94' Storage=1,101,698 cf Inflow=176.82 cfs 33.042 afPond 72P: South MNDOT M9 Wetland Outflow=5.26 cfs 32.682 af Total Runoff Area = 115.998 ac Runoff Volume = 37.732 af Average Runoff Depth = 3.90" 71.25% Pervious = 82.651 ac 28.75% Impervious = 33.347 ac Type II 24-hr 100y 24hr Old Rainfall=6.00"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 434HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 40.1S: South - East Runoff = 27.06 cfs @ 12.01 hrs, Volume= 1.688 af, Depth= 5.40" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Type II 24-hr 100y 24hr Old Rainfall=6.00" Area (sf) CN Description 29,976 80 >75% Grass cover, Good, HSG D 133,492 98 Paved parking, HSG D 163,468 Weighted Average 29,976 80 18.34% Pervious Area 133,492 98 81.66% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 10.0 Direct Entry, Subcatchment 40.1S: South - East Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)30 28 26 24 22 20 18 16 14 12 10 8 6 4 2 0 Type II 24-hr 100y 24hr Old Rainfall=6.00" Runoff Area=163,468 sf Runoff Volume=1.688 af Runoff Depth=5.40" Tc=10.0 min CN=WQ 27.06 cfs Type II 24-hr 100y 24hr Old Rainfall=6.00"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 435HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 40.2S: South - Central Runoff = 32.75 cfs @ 12.01 hrs, Volume= 2.030 af, Depth= 5.29" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Type II 24-hr 100y 24hr Old Rainfall=6.00" Area (sf) CN Description 47,748 80 >75% Grass cover, Good, HSG D 152,819 98 Paved parking, HSG D 200,567 Weighted Average 47,748 80 23.81% Pervious Area 152,819 98 76.19% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 10.0 Direct Entry, Subcatchment 40.2S: South - Central Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)36 34 32 30 28 26 24 22 20 18 16 14 12 10 8 6 4 2 0 Type II 24-hr 100y 24hr Old Rainfall=6.00" Runoff Area=200,567 sf Runoff Volume=2.030 af Runoff Depth=5.29" Tc=10.0 min CN=WQ 32.75 cfs Type II 24-hr 100y 24hr Old Rainfall=6.00"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 436HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 40.3S: South - West Runoff = 36.63 cfs @ 12.01 hrs, Volume= 2.252 af, Depth= 5.16" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Type II 24-hr 100y 24hr Old Rainfall=6.00" Area (sf) CN Description 69,464 80 >75% Grass cover, Good, HSG D * 158,681 98 Paved parking & roofs, HSG D 228,145 Weighted Average 69,464 80 30.45% Pervious Area 158,681 98 69.55% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 10.0 Direct Entry, Subcatchment 40.3S: South - West Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)40 38 36 34 32 30 28 26 24 22 20 18 16 14 12 10 8 6 4 2 0 Type II 24-hr 100y 24hr Old Rainfall=6.00" Runoff Area=228,145 sf Runoff Volume=2.252 af Runoff Depth=5.16" Tc=10.0 min CN=WQ 36.63 cfs Type II 24-hr 100y 24hr Old Rainfall=6.00"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 437HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 41.1S: South - East Runoff = 11.69 cfs @ 12.01 hrs, Volume= 0.732 af, Depth= 5.47" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Type II 24-hr 100y 24hr Old Rainfall=6.00" Area (sf) CN Description 10,289 80 >75% Grass cover, Good, HSG D 59,695 98 Paved parking, HSG D 69,984 Weighted Average 10,289 80 14.70% Pervious Area 59,695 98 85.30% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 10.0 Direct Entry, Subcatchment 41.1S: South - East Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)13 12 11 10 9 8 7 6 5 4 3 2 1 0 Type II 24-hr 100y 24hr Old Rainfall=6.00" Runoff Area=69,984 sf Runoff Volume=0.732 af Runoff Depth=5.47" Tc=10.0 min CN=WQ 11.69 cfs Type II 24-hr 100y 24hr Old Rainfall=6.00"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 438HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 41.2S: South - Central Runoff = 25.80 cfs @ 12.01 hrs, Volume= 1.607 af, Depth= 5.37" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Type II 24-hr 100y 24hr Old Rainfall=6.00" Area (sf) CN Description 31,015 80 >75% Grass cover, Good, HSG D 125,404 98 Paved parking, HSG D 156,419 Weighted Average 31,015 80 19.83% Pervious Area 125,404 98 80.17% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 10.0 Direct Entry, Subcatchment 41.2S: South - Central Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)28 26 24 22 20 18 16 14 12 10 8 6 4 2 0 Type II 24-hr 100y 24hr Old Rainfall=6.00" Runoff Area=156,419 sf Runoff Volume=1.607 af Runoff Depth=5.37" Tc=10.0 min CN=WQ 25.80 cfs Type II 24-hr 100y 24hr Old Rainfall=6.00"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 439HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 41.3S: South - west Runoff = 5.10 cfs @ 12.01 hrs, Volume= 0.322 af, Depth= 5.64" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Type II 24-hr 100y 24hr Old Rainfall=6.00" Area (sf) CN Description 1,850 80 >75% Grass cover, Good, HSG D 28,034 98 Paved parking, HSG D 29,884 Weighted Average 1,850 80 6.19% Pervious Area 28,034 98 93.81% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 10.0 Direct Entry, Subcatchment 41.3S: South - west Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)5 4 3 2 1 0 Type II 24-hr 100y 24hr Old Rainfall=6.00" Runoff Area=29,884 sf Runoff Volume=0.322 af Runoff Depth=5.64" Tc=10.0 min CN=WQ 5.10 cfs Type II 24-hr 100y 24hr Old Rainfall=6.00"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 440HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 42.1S: South Runoff = 6.57 cfs @ 11.96 hrs, Volume= 0.303 af, Depth= 3.78" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Type II 24-hr 100y 24hr Old Rainfall=6.00" Area (sf) CN Description 41,871 80 >75% Grass cover, Good, HSG D 41,871 80 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 5.0 Direct Entry, Subcatchment 42.1S: South Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)7 6 5 4 3 2 1 0 Type II 24-hr 100y 24hr Old Rainfall=6.00" Runoff Area=41,871 sf Runoff Volume=0.303 af Runoff Depth=3.78" Tc=5.0 min CN=80 6.57 cfs Type II 24-hr 100y 24hr Old Rainfall=6.00"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 441HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 42.2S: Southeast Runoff = 3.85 cfs @ 11.96 hrs, Volume= 0.177 af, Depth= 3.78" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Type II 24-hr 100y 24hr Old Rainfall=6.00" Area (sf) CN Description 24,525 80 >75% Grass cover, Good, HSG D 24,525 80 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 5.0 Direct Entry, Subcatchment 42.2S: Southeast Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)4 3 2 1 0 Type II 24-hr 100y 24hr Old Rainfall=6.00" Runoff Area=24,525 sf Runoff Volume=0.177 af Runoff Depth=3.78" Tc=5.0 min CN=80 3.85 cfs Type II 24-hr 100y 24hr Old Rainfall=6.00"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 442HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 43.1S: East Woods Runoff = 5.73 cfs @ 12.09 hrs, Volume= 0.408 af, Depth= 1.52" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Type II 24-hr 100y 24hr Old Rainfall=6.00" Area (ac) CN Description 3.222 55 Woods, Good, HSG B 3.222 55 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 11.1 75 0.0670 0.11 Sheet Flow, Woods: Light underbrush n= 0.400 P2= 2.87" 4.1 455 0.1380 1.86 Shallow Concentrated Flow, Woodland Kv= 5.0 fps 15.2 530 Total Subcatchment 43.1S: East Woods Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)6 5 4 3 2 1 0 Type II 24-hr 100y 24hr Old Rainfall=6.00" Runoff Area=3.222 ac Runoff Volume=0.408 af Runoff Depth=1.52" Flow Length=530' Tc=15.2 min CN=55 5.73 cfs Type II 24-hr 100y 24hr Old Rainfall=6.00"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 443HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 43.2S: Northeast Woods Runoff = 2.85 cfs @ 12.15 hrs, Volume= 0.236 af, Depth= 1.52" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Type II 24-hr 100y 24hr Old Rainfall=6.00" Area (ac) CN Description 1.862 55 Woods, Good, HSG B 1.862 55 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 14.2 100 0.0650 0.12 Sheet Flow, Woods: Light underbrush n= 0.400 P2= 2.87" 5.3 523 0.1080 1.64 Shallow Concentrated Flow, Woodland Kv= 5.0 fps 19.5 623 Total Subcatchment 43.2S: Northeast Woods Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)3 2 1 0 Type II 24-hr 100y 24hr Old Rainfall=6.00" Runoff Area=1.862 ac Runoff Volume=0.236 af Runoff Depth=1.52" Flow Length=623' Tc=19.5 min CN=55 2.85 cfs Type II 24-hr 100y 24hr Old Rainfall=6.00"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 444HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 44S: North Woods Runoff = 17.17 cfs @ 12.11 hrs, Volume= 1.281 af, Depth= 1.52" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Type II 24-hr 100y 24hr Old Rainfall=6.00" Area (sf) CN Description 441,314 55 Woods, Good, HSG B 441,314 55 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 11.2 75 0.0660 0.11 Sheet Flow, Woods: Light underbrush n= 0.400 P2= 2.87" 5.3 524 0.1090 1.65 Shallow Concentrated Flow, Woodland Kv= 5.0 fps 16.5 599 Total Subcatchment 44S: North Woods Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 Type II 24-hr 100y 24hr Old Rainfall=6.00" Runoff Area=441,314 sf Runoff Volume=1.281 af Runoff Depth=1.52" Flow Length=599' Tc=16.5 min CN=55 17.17 cfs Type II 24-hr 100y 24hr Old Rainfall=6.00"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 445HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 45S: Central - West Runoff = 33.24 cfs @ 12.01 hrs, Volume= 1.988 af, Depth= 5.04" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Type II 24-hr 100y 24hr Old Rainfall=6.00" Area (sf) CN Description 159,000 95 Urban commercial, 85% imp, HSG D 47,303 80 >75% Grass cover, Good, HSG D 206,303 Weighted Average 71,153 79 34.49% Pervious Area 135,150 98 65.51% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 10.0 Direct Entry, Subcatchment 45S: Central - West Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)36 34 32 30 28 26 24 22 20 18 16 14 12 10 8 6 4 2 0 Type II 24-hr 100y 24hr Old Rainfall=6.00" Runoff Area=206,303 sf Runoff Volume=1.988 af Runoff Depth=5.04" Tc=10.0 min CN=WQ 33.24 cfs Type II 24-hr 100y 24hr Old Rainfall=6.00"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 446HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 46S: South Townhomes Runoff = 12.45 cfs @ 12.04 hrs, Volume= 0.774 af, Depth= 4.17" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Type II 24-hr 100y 24hr Old Rainfall=6.00" Area (sf) CN Description 19,025 98 Paved parking, HSG D 78,057 80 >75% Grass cover, Good, HSG D 97,082 Weighted Average 78,057 80 80.40% Pervious Area 19,025 98 19.60% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 11.7 92 0.0320 0.13 Sheet Flow, Grass: Dense n= 0.240 P2= 2.87" 0.9 609 0.5200 10.82 Shallow Concentrated Flow, Grassed Waterway Kv= 15.0 fps 12.6 701 Total Subcatchment 46S: South Townhomes Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)13 12 11 10 9 8 7 6 5 4 3 2 1 0 Type II 24-hr 100y 24hr Old Rainfall=6.00" Runoff Area=97,082 sf Runoff Volume=0.774 af Runoff Depth=4.17" Flow Length=701' Tc=12.6 min CN=WQ 12.45 cfs Type II 24-hr 100y 24hr Old Rainfall=6.00"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 447HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 47S: Bluff Creek Blvd - West Runoff = 19.38 cfs @ 11.96 hrs, Volume= 1.029 af, Depth= 5.38" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Type II 24-hr 100y 24hr Old Rainfall=6.00" Area (ac) CN Description 0.439 80 >75% Grass cover, Good, HSG D 1.856 98 Paved roads w/curbs & sewers, HSG D 2.295 Weighted Average 0.439 80 19.13% Pervious Area 1.856 98 80.87% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 5.0 Direct Entry, Subcatchment 47S: Bluff Creek Blvd - West Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 Type II 24-hr 100y 24hr Old Rainfall=6.00" Runoff Area=2.295 ac Runoff Volume=1.029 af Runoff Depth=5.38" Tc=5.0 min CN=WQ 19.38 cfs Type II 24-hr 100y 24hr Old Rainfall=6.00"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 448HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 48.1S: Direct to 48P (2) Runoff = 14.99 cfs @ 12.01 hrs, Volume= 0.920 af, Depth= 5.13" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Type II 24-hr 100y 24hr Old Rainfall=6.00" Area (sf) CN Description 29,956 80 >75% Grass cover, Good, HSG D 63,765 98 Paved parking, HSG D 93,721 Weighted Average 29,956 80 31.96% Pervious Area 63,765 98 68.04% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 10.0 Direct Entry, Subcatchment 48.1S: Direct to 48P (2) Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 Type II 24-hr 100y 24hr Old Rainfall=6.00" Runoff Area=93,721 sf Runoff Volume=0.920 af Runoff Depth=5.13" Tc=10.0 min CN=WQ 14.99 cfs Type II 24-hr 100y 24hr Old Rainfall=6.00"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 449HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 48S: Bluff Creek Blvd - East Runoff = 29.09 cfs @ 11.96 hrs, Volume= 1.546 af, Depth= 5.39" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Type II 24-hr 100y 24hr Old Rainfall=6.00" Area (ac) CN Description 0.642 80 >75% Grass cover, Good, HSG D 2.799 98 Paved roads w/curbs & sewers, HSG D 3.441 Weighted Average 0.642 80 18.66% Pervious Area 2.799 98 81.34% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 5.0 Direct Entry, Subcatchment 48S: Bluff Creek Blvd - East Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)32 30 28 26 24 22 20 18 16 14 12 10 8 6 4 2 0 Type II 24-hr 100y 24hr Old Rainfall=6.00" Runoff Area=3.441 ac Runoff Volume=1.546 af Runoff Depth=5.39" Tc=5.0 min CN=WQ 29.09 cfs Type II 24-hr 100y 24hr Old Rainfall=6.00"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 450HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 71-1S: Interlacn Subcatch 1 Runoff = 14.45 cfs @ 11.98 hrs, Volume= 0.727 af, Depth= 4.20" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Type II 24-hr 100y 24hr Old Rainfall=6.00" Area (ac) CN Description * 2.080 84 Weoghted 2.080 84 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 7.0 Direct Entry, Subcatchment 71-1S: Interlacn Subcatch 1 Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 Type II 24-hr 100y 24hr Old Rainfall=6.00" Runoff Area=2.080 ac Runoff Volume=0.727 af Runoff Depth=4.20" Tc=7.0 min CN=84 14.45 cfs Type II 24-hr 100y 24hr Old Rainfall=6.00"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 451HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 71-2S: Interlacn Subcatch 2 Runoff = 9.65 cfs @ 11.98 hrs, Volume= 0.580 af, Depth= 6.00" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Type II 24-hr 100y 24hr Old Rainfall=6.00" Area (ac) CN Description * 1.160 100 1.160 100 100.00% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 7.0 Direct Entry, Subcatchment 71-2S: Interlacn Subcatch 2 Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)10 9 8 7 6 5 4 3 2 1 0 Type II 24-hr 100y 24hr Old Rainfall=6.00" Runoff Area=1.160 ac Runoff Volume=0.580 af Runoff Depth=6.00" Tc=7.0 min CN=100 9.65 cfs Type II 24-hr 100y 24hr Old Rainfall=6.00"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 452HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 72S: 6_Temp Runoff = 6.12 cfs @ 12.00 hrs, Volume= 0.358 af, Depth= 5.30" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Type II 24-hr 100y 24hr Old Rainfall=6.00" Area (ac) CN Description * 0.810 94 Weighted 0.810 94 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 9.0 Direct Entry, Subcatchment 72S: 6_Temp Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)6 5 4 3 2 1 0 Type II 24-hr 100y 24hr Old Rainfall=6.00" Runoff Area=0.810 ac Runoff Volume=0.358 af Runoff Depth=5.30" Tc=9.0 min CN=94 6.12 cfs Type II 24-hr 100y 24hr Old Rainfall=6.00"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 453HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 73S: N68 Runoff = 19.55 cfs @ 11.98 hrs, Volume= 1.133 af, Depth= 5.76" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Type II 24-hr 100y 24hr Old Rainfall=6.00" Area (ac) CN Description * 2.360 98 Weighted 2.360 98 100.00% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 7.0 Direct Entry, Subcatchment 73S: N68 Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 Type II 24-hr 100y 24hr Old Rainfall=6.00" Runoff Area=2.360 ac Runoff Volume=1.133 af Runoff Depth=5.76" Tc=7.0 min CN=98 19.55 cfs Type II 24-hr 100y 24hr Old Rainfall=6.00"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 454HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 74S: 5_Temp Runoff = 7.34 cfs @ 12.00 hrs, Volume= 0.412 af, Depth= 4.85" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Type II 24-hr 100y 24hr Old Rainfall=6.00" Area (ac) CN Description * 1.020 90 1.020 90 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 9.0 Direct Entry, Subcatchment 74S: 5_Temp Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)8 7 6 5 4 3 2 1 0 Type II 24-hr 100y 24hr Old Rainfall=6.00" Runoff Area=1.020 ac Runoff Volume=0.412 af Runoff Depth=4.85" Tc=9.0 min CN=90 7.34 cfs Type II 24-hr 100y 24hr Old Rainfall=6.00"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 455HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 75S: 3225 Runoff = 24.94 cfs @ 11.98 hrs, Volume= 1.445 af, Depth= 5.76" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Type II 24-hr 100y 24hr Old Rainfall=6.00" Area (ac) CN Description * 3.010 98 Weighted 3.010 98 100.00% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 7.0 Direct Entry, Subcatchment 75S: 3225 Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)26 24 22 20 18 16 14 12 10 8 6 4 2 0 Type II 24-hr 100y 24hr Old Rainfall=6.00" Runoff Area=3.010 ac Runoff Volume=1.445 af Runoff Depth=5.76" Tc=7.0 min CN=98 24.94 cfs Type II 24-hr 100y 24hr Old Rainfall=6.00"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 456HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 76S: 3236 Runoff = 41.78 cfs @ 12.06 hrs, Volume= 2.619 af, Depth= 3.78" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Type II 24-hr 100y 24hr Old Rainfall=6.00" Area (ac) CN Description * 8.310 80 Weighted 8.310 80 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 14.0 Direct Entry, Subcatchment 76S: 3236 Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)46 44 42 40 38 36 34 32 30 28 26 24 22 20 18 16 14 12 10 8 6 4 2 0 Type II 24-hr 100y 24hr Old Rainfall=6.00" Runoff Area=8.310 ac Runoff Volume=2.619 af Runoff Depth=3.78" Tc=14.0 min CN=80 41.78 cfs Type II 24-hr 100y 24hr Old Rainfall=6.00"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 457HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 77S: 3238 Runoff = 6.47 cfs @ 11.98 hrs, Volume= 0.324 af, Depth= 4.09" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Type II 24-hr 100y 24hr Old Rainfall=6.00" Area (ac) CN Description * 0.950 83 Weighted 0.950 83 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 7.0 Direct Entry, Subcatchment 77S: 3238 Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)7 6 5 4 3 2 1 0 Type II 24-hr 100y 24hr Old Rainfall=6.00" Runoff Area=0.950 ac Runoff Volume=0.324 af Runoff Depth=4.09" Tc=7.0 min CN=83 6.47 cfs Type II 24-hr 100y 24hr Old Rainfall=6.00"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 458HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 78S: 3243 Runoff = 4.91 cfs @ 11.98 hrs, Volume= 0.260 af, Depth= 4.96" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Type II 24-hr 100y 24hr Old Rainfall=6.00" Area (ac) CN Description * 0.630 91 Weighted 0.630 91 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 7.0 Direct Entry, Subcatchment 78S: 3243 Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)5 4 3 2 1 0 Type II 24-hr 100y 24hr Old Rainfall=6.00" Runoff Area=0.630 ac Runoff Volume=0.260 af Runoff Depth=4.96" Tc=7.0 min CN=91 4.91 cfs Type II 24-hr 100y 24hr Old Rainfall=6.00"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 459HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 79S: 3245 Runoff = 16.98 cfs @ 11.98 hrs, Volume= 0.984 af, Depth= 5.76" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Type II 24-hr 100y 24hr Old Rainfall=6.00" Area (ac) CN Description * 2.050 98 Weighted 2.050 98 100.00% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 7.0 Direct Entry, Subcatchment 79S: 3245 Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 Type II 24-hr 100y 24hr Old Rainfall=6.00" Runoff Area=2.050 ac Runoff Volume=0.984 af Runoff Depth=5.76" Tc=7.0 min CN=98 16.98 cfs Type II 24-hr 100y 24hr Old Rainfall=6.00"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 460HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 80S: 3250 Runoff = 2.69 cfs @ 11.98 hrs, Volume= 0.141 af, Depth= 4.85" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Type II 24-hr 100y 24hr Old Rainfall=6.00" Area (ac) CN Description * 0.350 90 Weighted 0.350 90 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 7.0 Direct Entry, Subcatchment 80S: 3250 Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)3 2 1 0 Type II 24-hr 100y 24hr Old Rainfall=6.00" Runoff Area=0.350 ac Runoff Volume=0.141 af Runoff Depth=4.85" Tc=7.0 min CN=90 2.69 cfs Type II 24-hr 100y 24hr Old Rainfall=6.00"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 461HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 81S: 3343 Runoff = 23.03 cfs @ 12.12 hrs, Volume= 1.676 af, Depth= 3.38" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Type II 24-hr 100y 24hr Old Rainfall=6.00" Area (ac) CN Description * 5.950 76 Weighted 5.950 76 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 19.0 Direct Entry, Subcatchment 81S: 3343 Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 Type II 24-hr 100y 24hr Old Rainfall=6.00" Runoff Area=5.950 ac Runoff Volume=1.676 af Runoff Depth=3.38" Tc=19.0 min CN=76 23.03 cfs Type II 24-hr 100y 24hr Old Rainfall=6.00"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 462HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 82S: 3345 Runoff = 9.00 cfs @ 11.98 hrs, Volume= 0.441 af, Depth= 3.58" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Type II 24-hr 100y 24hr Old Rainfall=6.00" Area (ac) CN Description * 1.480 78 Weighted 1.480 78 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 7.0 Direct Entry, Subcatchment 82S: 3345 Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)10 9 8 7 6 5 4 3 2 1 0 Type II 24-hr 100y 24hr Old Rainfall=6.00" Runoff Area=1.480 ac Runoff Volume=0.441 af Runoff Depth=3.58" Tc=7.0 min CN=78 9.00 cfs Type II 24-hr 100y 24hr Old Rainfall=6.00"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 463HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 83S: 3348 Runoff = 5.14 cfs @ 11.98 hrs, Volume= 0.264 af, Depth= 4.52" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Type II 24-hr 100y 24hr Old Rainfall=6.00" Area (ac) CN Description * 0.700 87 Weighted 0.700 87 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 7.0 Direct Entry, Subcatchment 83S: 3348 Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)5 4 3 2 1 0 Type II 24-hr 100y 24hr Old Rainfall=6.00" Runoff Area=0.700 ac Runoff Volume=0.264 af Runoff Depth=4.52" Tc=7.0 min CN=87 5.14 cfs Type II 24-hr 100y 24hr Old Rainfall=6.00"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 464HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 84S: SE12 Runoff = 11.37 cfs @ 12.03 hrs, Volume= 0.644 af, Depth= 3.68" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Type II 24-hr 100y 24hr Old Rainfall=6.00" Area (ac) CN Description * 2.100 79 Weighted 2.100 79 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 11.0 Direct Entry, Subcatchment 84S: SE12 Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)12 11 10 9 8 7 6 5 4 3 2 1 0 Type II 24-hr 100y 24hr Old Rainfall=6.00" Runoff Area=2.100 ac Runoff Volume=0.644 af Runoff Depth=3.68" Tc=11.0 min CN=79 11.37 cfs Type II 24-hr 100y 24hr Old Rainfall=6.00"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 465HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 85S: 1S Runoff = 15.88 cfs @ 12.08 hrs, Volume= 1.024 af, Depth= 2.71" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Type II 24-hr 100y 24hr Old Rainfall=6.00" Area (ac) CN Description * 4.530 69 Weighted 4.530 69 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 15.0 Direct Entry, Subcatchment 85S: 1S Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 Type II 24-hr 100y 24hr Old Rainfall=6.00" Runoff Area=4.530 ac Runoff Volume=1.024 af Runoff Depth=2.71" Tc=15.0 min CN=69 15.88 cfs Type II 24-hr 100y 24hr Old Rainfall=6.00"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 466HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 86S: 2S Runoff = 15.17 cfs @ 12.19 hrs, Volume= 1.311 af, Depth= 2.71" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Type II 24-hr 100y 24hr Old Rainfall=6.00" Area (ac) CN Description * 5.800 69 Weighted 5.800 69 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 25.0 Direct Entry, Subcatchment 86S: 2S Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 Type II 24-hr 100y 24hr Old Rainfall=6.00" Runoff Area=5.800 ac Runoff Volume=1.311 af Runoff Depth=2.71" Tc=25.0 min CN=69 15.17 cfs Type II 24-hr 100y 24hr Old Rainfall=6.00"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 467HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 87S: M9 Runoff = 64.89 cfs @ 12.22 hrs, Volume= 6.095 af, Depth= 3.38" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Type II 24-hr 100y 24hr Old Rainfall=6.00" Area (ac) CN Description * 21.638 76 Weighted 21.638 76 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 29.0 Direct Entry, Subcatchment 87S: M9 Runoff Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)70 65 60 55 50 45 40 35 30 25 20 15 10 5 0 Type II 24-hr 100y 24hr Old Rainfall=6.00" Runoff Area=21.638 ac Runoff Volume=6.095 af Runoff Depth=3.38" Tc=29.0 min CN=76 64.89 cfs Type II 24-hr 100y 24hr Old Rainfall=6.00"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 468HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Reach 40R: South Drainage [40] Hint: Not Described (Outflow=Inflow) Inflow Area = 51.070 ac, 48.50% Impervious, Inflow Depth = 2.96" for 100y 24hr Old event Inflow = 60.35 cfs @ 12.12 hrs, Volume= 12.617 af Outflow = 60.35 cfs @ 12.12 hrs, Volume= 12.617 af, Atten= 0%, Lag= 0.0 min Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Reach 40R: South Drainage Inflow Outflow Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)65 60 55 50 45 40 35 30 25 20 15 10 5 0 Inflow Area=51.070 ac 60.35 cfs 60.35 cfs Type II 24-hr 100y 24hr Old Rainfall=6.00"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 469HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Reach 42.1R: South [40] Hint: Not Described (Outflow=Inflow) Inflow Area = 9.843 ac, 71.43% Impervious, Inflow Depth = 3.65" for 100y 24hr Old event Inflow = 15.11 cfs @ 12.13 hrs, Volume= 2.993 af Outflow = 15.11 cfs @ 12.13 hrs, Volume= 2.993 af, Atten= 0%, Lag= 0.0 min Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Reach 42.1R: South Inflow Outflow Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 Inflow Area=9.843 ac 15.11 cfs 15.11 cfs Type II 24-hr 100y 24hr Old Rainfall=6.00"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 470HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Reach 42.2R: Southeast [40] Hint: Not Described (Outflow=Inflow) Inflow Area = 11.515 ac, 75.54% Impervious, Inflow Depth = 3.57" for 100y 24hr Old event Inflow = 8.24 cfs @ 11.98 hrs, Volume= 3.428 af Outflow = 8.24 cfs @ 11.98 hrs, Volume= 3.428 af, Atten= 0%, Lag= 0.0 min Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Reach 42.2R: Southeast Inflow Outflow Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)9 8 7 6 5 4 3 2 1 0 Inflow Area=11.515 ac 8.24 cfs 8.24 cfs Type II 24-hr 100y 24hr Old Rainfall=6.00"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 471HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Reach 44R: Wetland 4 Channel [40] Hint: Not Described (Outflow=Inflow) Inflow Area = 26.490 ac, 34.12% Impervious, Inflow Depth = 2.62" for 100y 24hr Old event Inflow = 32.68 cfs @ 12.12 hrs, Volume= 5.788 af Outflow = 32.68 cfs @ 12.12 hrs, Volume= 5.788 af, Atten= 0%, Lag= 0.0 min Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Reach 44R: Wetland 4 Channel Inflow Outflow Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)36 34 32 30 28 26 24 22 20 18 16 14 12 10 8 6 4 2 0 Inflow Area=26.490 ac 32.68 cfs 32.68 cfs Type II 24-hr 100y 24hr Old Rainfall=6.00"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 472HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Reach 48R: Development to Wetland 4 [40] Hint: Not Described (Outflow=Inflow) Inflow Area = 14.497 ac, 62.34% Impervious, Inflow Depth = 3.54" for 100y 24hr Old event Inflow = 12.85 cfs @ 12.14 hrs, Volume= 4.272 af Outflow = 12.85 cfs @ 12.14 hrs, Volume= 4.272 af, Atten= 0%, Lag= 0.0 min Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Reach 48R: Development to Wetland 4 Inflow Outflow Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 Inflow Area=14.497 ac 12.85 cfs 12.85 cfs Type II 24-hr 100y 24hr Old Rainfall=6.00"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 473HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Reach 72R: N68 [52] Hint: Inlet/Outlet conditions not evaluated [55] Hint: Peak inflow is 155% of Manning's capacity [76] Warning: Detained 0.104 af (Pond w/culvert advised) Inflow Area = 4.190 ac, 56.32% Impervious, Inflow Depth = 5.45" for 100y 24hr Old event Inflow = 32.77 cfs @ 11.99 hrs, Volume= 1.903 af Outflow = 21.75 cfs @ 11.89 hrs, Volume= 1.903 af, Atten= 34%, Lag= 0.0 min Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Max. Velocity= 7.68 fps, Min. Travel Time= 0.1 min Avg. Velocity = 2.78 fps, Avg. Travel Time= 0.4 min Peak Storage= 198 cf @ 11.90 hrs Average Depth at Peak Storage= 2.00' Bank-Full Depth= 2.00' Flow Area= 3.1 sf, Capacity= 21.17 cfs 24.0" Round Pipe n= 0.012 Length= 63.0' Slope= 0.0075 '/' Inlet Invert= 872.00', Outlet Invert= 871.53' Type II 24-hr 100y 24hr Old Rainfall=6.00"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 474HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Reach 72R: N68 Inflow Outflow Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)36 34 32 30 28 26 24 22 20 18 16 14 12 10 8 6 4 2 0 Inflow Area=4.190 ac Avg. Flow Depth=2.00' Max Vel=7.68 fps 24.0" Round Pipe n=0.012 L=63.0' S=0.0075 '/' Capacity=21.17 cfs 32.77 cfs 21.75 cfs Type II 24-hr 100y 24hr Old Rainfall=6.00"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 475HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Pond 40.1P: South East Inflow Area = 3.753 ac, 81.66% Impervious, Inflow Depth = 5.40" for 100y 24hr Old event Inflow = 27.06 cfs @ 12.01 hrs, Volume= 1.688 af Outflow = 2.23 cfs @ 12.60 hrs, Volume= 1.688 af, Atten= 92%, Lag= 35.1 min Discarded = 0.14 cfs @ 12.07 hrs, Volume= 0.499 af Primary = 2.09 cfs @ 12.60 hrs, Volume= 1.189 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 896.38' @ 12.60 hrs Surf.Area= 102,096 sf Storage= 43,869 cf Plug-Flow detention time= 681.1 min calculated for 1.688 af (100% of inflow) Center-of-Mass det. time= 681.1 min ( 1,434.8 - 753.7 ) Volume Invert Avail.Storage Storage Description #1 893.70' 34,978 cf Custom Stage Data (Prismatic) Listed below (Recalc) 117,410 cf Overall - 818 cf Embedded = 116,593 cf x 30.0% Voids #2 896.00' 40,511 cf Custom Stage Data (Prismatic) Listed below (Recalc) 102,096 cf Overall - 818 cf Embedded = 101,278 cf x 40.0% Voids #3 893.70' 818 cf 8.0" Round Pipe Storage Inside #1 L= 2,343.0' #4 896.00' 818 cf 8.0" Round Pipe Storage Inside #2 L= 2,343.0' 77,125 cf Total Available Storage Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 893.70 51,048 0 0 896.00 51,048 117,410 117,410 Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 896.00 51,048 0 0 898.00 51,048 102,096 102,096 Device Routing Invert Outlet Devices #1 Primary 893.70'12.0" Round Culvert L= 260.0' RCP, sq.cut end projecting, Ke= 0.500 Inlet / Outlet Invert= 893.70' / 891.88' S= 0.0070 '/' Cc= 0.900 n= 0.011 Concrete pipe, straight & clean, Flow Area= 0.79 sf #2 Device 1 894.50'8.0" Vert. Orifice/Grate C= 0.600 #3 Device 1 896.67'12.0" Vert. Orifice/Grate C= 0.600 #4 Discarded 893.70'0.060 in/hr Exfiltration over Surface area Phase-In= 0.01' Discarded OutFlow Max=0.14 cfs @ 12.07 hrs HW=896.03' (Free Discharge) 4=Exfiltration (Exfiltration Controls 0.14 cfs) Primary OutFlow Max=2.09 cfs @ 12.60 hrs HW=896.38' TW=0.00' (Dynamic Tailwater) 1=Culvert (Passes 2.09 cfs of 4.35 cfs potential flow) 2=Orifice/Grate (Orifice Controls 2.09 cfs @ 5.99 fps) 3=Orifice/Grate ( Controls 0.00 cfs) Type II 24-hr 100y 24hr Old Rainfall=6.00"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 476HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Pond 40.1P: South East Inflow Outflow Discarded Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)30 28 26 24 22 20 18 16 14 12 10 8 6 4 2 0 Inflow Area=3.753 ac Peak Elev=896.38' Storage=43,869 cf 27.06 cfs 2.23 cfs 0.14 cfs2.09 cfs Type II 24-hr 100y 24hr Old Rainfall=6.00"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 477HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Pond 40.2P: South Central Inflow Area = 4.604 ac, 76.19% Impervious, Inflow Depth = 5.29" for 100y 24hr Old event Inflow = 32.75 cfs @ 12.01 hrs, Volume= 2.030 af Outflow = 1.61 cfs @ 13.20 hrs, Volume= 2.030 af, Atten= 95%, Lag= 71.5 min Discarded = 0.13 cfs @ 2.78 hrs, Volume= 0.923 af Primary = 1.48 cfs @ 13.20 hrs, Volume= 1.107 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 896.91' @ 13.20 hrs Surf.Area= 94,313 sf Storage= 55,137 cf Plug-Flow detention time= 1,039.4 min calculated for 2.030 af (100% of inflow) Center-of-Mass det. time= 1,039.5 min ( 1,796.1 - 756.6 ) Volume Invert Avail.Storage Storage Description #1 895.00' 64,623 cf Custom Stage Data (Prismatic) Listed below (Recalc) 216,920 cf Overall - 1,511 cf Embedded = 215,409 cf x 30.0% Voids #2 897.30' 74,846 cf Custom Stage Data (Prismatic) Listed below (Recalc) 188,626 cf Overall - 1,511 cf Embedded = 187,115 cf x 40.0% Voids #3 895.00' 1,511 cf 8.0" Round Pipe Storage Inside #1 L= 4,328.0' #4 897.30' 1,511 cf 8.0" Round Pipe Storage Inside #2 L= 4,328.0' 142,490 cf Total Available Storage Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 895.00 94,313 0 0 897.30 94,313 216,920 216,920 Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 897.30 94,313 0 0 899.30 94,313 188,626 188,626 Device Routing Invert Outlet Devices #1 Primary 895.00'12.0" Round Culvert L= 250.0' RCP, sq.cut end projecting, Ke= 0.500 Inlet / Outlet Invert= 895.00' / 893.25' S= 0.0070 '/' Cc= 0.900 n= 0.011 Concrete pipe, straight & clean, Flow Area= 0.79 sf #2 Device 1 895.80'8.0" Vert. Orifice/Grate C= 0.600 #3 Device 1 897.97'8.0" Vert. Orifice/Grate C= 0.600 #4 Discarded 895.00'0.060 in/hr Exfiltration over Surface area Phase-In= 0.01' Discarded OutFlow Max=0.13 cfs @ 2.78 hrs HW=895.01' (Free Discharge) 4=Exfiltration (Exfiltration Controls 0.13 cfs) Primary OutFlow Max=1.48 cfs @ 13.20 hrs HW=896.91' TW=0.00' (Dynamic Tailwater) 1=Culvert (Passes 1.48 cfs of 3.85 cfs potential flow) 2=Orifice/Grate (Orifice Controls 1.48 cfs @ 4.25 fps) 3=Orifice/Grate ( Controls 0.00 cfs) Type II 24-hr 100y 24hr Old Rainfall=6.00"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 478HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Pond 40.2P: South Central Inflow Outflow Discarded Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)36 34 32 30 28 26 24 22 20 18 16 14 12 10 8 6 4 2 0 Inflow Area=4.604 ac Peak Elev=896.91' Storage=55,137 cf 32.75 cfs 1.61 cfs 0.13 cfs1.48 cfs Type II 24-hr 100y 24hr Old Rainfall=6.00"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 479HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Pond 40.3P: South Inflow Area = 5.237 ac, 69.55% Impervious, Inflow Depth = 5.16" for 100y 24hr Old event Inflow = 36.63 cfs @ 12.01 hrs, Volume= 2.252 af Outflow = 2.45 cfs @ 12.78 hrs, Volume= 2.252 af, Atten= 93%, Lag= 46.1 min Discarded = 0.17 cfs @ 12.03 hrs, Volume= 0.617 af Primary = 2.29 cfs @ 12.78 hrs, Volume= 1.635 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 900.48' @ 12.78 hrs Surf.Area= 120,464 sf Storage= 59,306 cf Plug-Flow detention time= 680.8 min calculated for 2.252 af (100% of inflow) Center-of-Mass det. time= 680.9 min ( 1,441.2 - 760.3 ) Volume Invert Avail.Storage Storage Description #1 897.50' 41,271 cf Custom Stage Data (Prismatic) Listed below (Recalc) 138,534 cf Overall - 965 cf Embedded = 137,569 cf x 30.0% Voids #2 899.80' 47,800 cf Custom Stage Data (Prismatic) Listed below (Recalc) 120,464 cf Overall - 965 cf Embedded = 119,499 cf x 40.0% Voids #3 897.50' 965 cf 8.0" Round Pipe Storage Inside #1 L= 2,764.0' #4 899.80' 965 cf 8.0" Round Pipe Storage Inside #2 L= 2,764.0' 91,000 cf Total Available Storage Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 897.50 60,232 0 0 899.80 60,232 138,534 138,534 Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 899.80 60,232 0 0 901.80 60,232 120,464 120,464 Device Routing Invert Outlet Devices #1 Primary 897.50'12.0" Round Culvert L= 175.0' RCP, sq.cut end projecting, Ke= 0.500 Inlet / Outlet Invert= 897.50' / 896.27' S= 0.0070 '/' Cc= 0.900 n= 0.011 Concrete pipe, straight & clean, Flow Area= 0.79 sf #2 Device 1 898.30'8.0" Vert. Orifice/Grate C= 0.600 #3 Device 1 900.47'8.0" Vert. Orifice/Grate C= 0.600 #4 Discarded 897.50'0.060 in/hr Exfiltration over Surface area Phase-In= 0.01' Discarded OutFlow Max=0.17 cfs @ 12.03 hrs HW=899.85' (Free Discharge) 4=Exfiltration (Exfiltration Controls 0.17 cfs) Primary OutFlow Max=2.29 cfs @ 12.78 hrs HW=900.48' TW=0.00' (Dynamic Tailwater) 1=Culvert (Passes 2.29 cfs of 4.85 cfs potential flow) 2=Orifice/Grate (Orifice Controls 2.29 cfs @ 6.55 fps) 3=Orifice/Grate (Orifice Controls 0.00 cfs @ 0.41 fps) Type II 24-hr 100y 24hr Old Rainfall=6.00"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 480HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Pond 40.3P: South Inflow Outflow Discarded Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)40 38 36 34 32 30 28 26 24 22 20 18 16 14 12 10 8 6 4 2 0 Inflow Area=5.237 ac Peak Elev=900.48' Storage=59,306 cf 36.63 cfs 2.45 cfs 0.17 cfs2.29 cfs Type II 24-hr 100y 24hr Old Rainfall=6.00"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 481HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Pond 41.1P: South East Inflow Area = 1.607 ac, 85.30% Impervious, Inflow Depth = 5.47" for 100y 24hr Old event Inflow = 11.69 cfs @ 12.01 hrs, Volume= 0.732 af Outflow = 0.87 cfs @ 12.66 hrs, Volume= 0.732 af, Atten= 93%, Lag= 39.0 min Discarded = 0.06 cfs @ 3.24 hrs, Volume= 0.409 af Primary = 0.80 cfs @ 12.66 hrs, Volume= 0.324 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 889.36' @ 12.66 hrs Surf.Area= 45,024 sf Storage= 18,911 cf Plug-Flow detention time= 1,069.6 min calculated for 0.732 af (100% of inflow) Center-of-Mass det. time= 1,069.7 min ( 1,821.5 - 751.8 ) Volume Invert Avail.Storage Storage Description #1 888.00' 30,850 cf Custom Stage Data (Prismatic) Listed below (Recalc) 103,555 cf Overall - 721 cf Embedded = 102,834 cf x 30.0% Voids #2 890.30' 35,731 cf Custom Stage Data (Prismatic) Listed below (Recalc) 90,048 cf Overall - 721 cf Embedded = 89,327 cf x 40.0% Voids #3 888.00' 721 cf 8.0" Round Pipe Storage Inside #1 L= 2,066.0' #4 890.30' 721 cf 8.0" Round Pipe Storage Inside #2 L= 2,066.0' 68,023 cf Total Available Storage Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 888.00 45,024 0 0 890.30 45,024 103,555 103,555 Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 890.30 45,024 0 0 892.30 45,024 90,048 90,048 Device Routing Invert Outlet Devices #1 Primary 888.00'12.0" Round Culvert L= 70.0' RCP, sq.cut end projecting, Ke= 0.500 Inlet / Outlet Invert= 888.00' / 887.51' S= 0.0070 '/' Cc= 0.900 n= 0.011 Concrete pipe, straight & clean, Flow Area= 0.79 sf #2 Device 1 888.80'8.0" Vert. Orifice/Grate C= 0.600 #3 Device 1 890.97'8.0" Vert. Orifice/Grate C= 0.600 #4 Discarded 888.00'0.060 in/hr Exfiltration over Surface area Phase-In= 0.01' Discarded OutFlow Max=0.06 cfs @ 3.24 hrs HW=888.01' (Free Discharge) 4=Exfiltration (Exfiltration Controls 0.06 cfs) Primary OutFlow Max=0.80 cfs @ 12.66 hrs HW=889.36' TW=0.00' (Dynamic Tailwater) 1=Culvert (Passes 0.80 cfs of 3.32 cfs potential flow) 2=Orifice/Grate (Orifice Controls 0.80 cfs @ 2.55 fps) 3=Orifice/Grate ( Controls 0.00 cfs) Type II 24-hr 100y 24hr Old Rainfall=6.00"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 482HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Pond 41.1P: South East Inflow Outflow Discarded Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)13 12 11 10 9 8 7 6 5 4 3 2 1 0 Inflow Area=1.607 ac Peak Elev=889.36' Storage=18,911 cf 11.69 cfs 0.87 cfs 0.06 cfs0.80 cfs Type II 24-hr 100y 24hr Old Rainfall=6.00"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 483HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Pond 41.2P: South Central Inflow Area = 3.591 ac, 80.17% Impervious, Inflow Depth = 5.37" for 100y 24hr Old event Inflow = 25.80 cfs @ 12.01 hrs, Volume= 1.607 af Outflow = 12.61 cfs @ 12.13 hrs, Volume= 1.607 af, Atten= 51%, Lag= 7.2 min Discarded = 0.05 cfs @ 11.89 hrs, Volume= 0.153 af Primary = 12.56 cfs @ 12.13 hrs, Volume= 1.454 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 885.34' @ 12.13 hrs Surf.Area= 33,574 sf Storage= 22,276 cf Plug-Flow detention time= 212.5 min calculated for 1.607 af (100% of inflow) Center-of-Mass det. time= 212.6 min ( 967.0 - 754.5 ) Volume Invert Avail.Storage Storage Description #1 881.50' 11,502 cf Custom Stage Data (Prismatic) Listed below (Recalc) 38,610 cf Overall - 269 cf Embedded = 38,341 cf x 30.0% Voids #2 883.80' 13,322 cf Custom Stage Data (Prismatic) Listed below (Recalc) 33,574 cf Overall - 269 cf Embedded = 33,305 cf x 40.0% Voids #3 881.50' 269 cf 8.0" Round Pipe Storage Inside #1 L= 770.0' #4 883.80' 269 cf 8.0" Round Pipe Storage Inside #2 L= 770.0' 25,362 cf Total Available Storage Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 881.50 16,787 0 0 883.80 16,787 38,610 38,610 Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 883.80 16,787 0 0 885.80 16,787 33,574 33,574 Device Routing Invert Outlet Devices #1 Primary 881.50'18.0" Round Culvert L= 22.0' RCP, sq.cut end projecting, Ke= 0.500 Inlet / Outlet Invert= 881.50' / 881.28' S= 0.0100 '/' Cc= 0.900 n= 0.011 Concrete pipe, straight & clean, Flow Area= 1.77 sf #2 Device 1 882.30'15.0" Vert. Orifice/Grate C= 0.600 #3 Device 1 884.47'18.0" Vert. Orifice/Grate C= 0.600 #4 Discarded 881.50'0.060 in/hr Exfiltration over Surface area Phase-In= 0.01' Discarded OutFlow Max=0.05 cfs @ 11.89 hrs HW=883.82' (Free Discharge) 4=Exfiltration (Exfiltration Controls 0.05 cfs) Primary OutFlow Max=12.56 cfs @ 12.13 hrs HW=885.34' TW=0.00' (Dynamic Tailwater) 1=Culvert (Passes 12.56 cfs of 14.96 cfs potential flow) 2=Orifice/Grate (Orifice Controls 9.18 cfs @ 7.48 fps) 3=Orifice/Grate (Orifice Controls 3.38 cfs @ 3.18 fps) Type II 24-hr 100y 24hr Old Rainfall=6.00"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 484HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Pond 41.2P: South Central Inflow Outflow Discarded Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)28 26 24 22 20 18 16 14 12 10 8 6 4 2 0 Inflow Area=3.591 ac Peak Elev=885.34' Storage=22,276 cf 25.80 cfs 12.61 cfs 0.05 cfs 12.56 cfs Type II 24-hr 100y 24hr Old Rainfall=6.00"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 485HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Pond 41.3P: South West Inflow Area = 0.686 ac, 93.81% Impervious, Inflow Depth = 5.64" for 100y 24hr Old event Inflow = 5.10 cfs @ 12.01 hrs, Volume= 0.322 af Outflow = 0.49 cfs @ 12.51 hrs, Volume= 0.322 af, Atten= 90%, Lag= 30.3 min Discarded = 0.03 cfs @ 3.36 hrs, Volume= 0.193 af Primary = 0.46 cfs @ 12.51 hrs, Volume= 0.129 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 890.94' @ 12.51 hrs Surf.Area= 22,024 sf Storage= 8,134 cf Plug-Flow detention time= 1,071.1 min calculated for 0.322 af (100% of inflow) Center-of-Mass det. time= 1,071.2 min ( 1,818.8 - 747.6 ) Volume Invert Avail.Storage Storage Description #1 889.75' 15,091 cf Custom Stage Data (Prismatic) Listed below (Recalc) 50,655 cf Overall - 353 cf Embedded = 50,303 cf x 30.0% Voids #2 892.05' 17,478 cf Custom Stage Data (Prismatic) Listed below (Recalc) 44,048 cf Overall - 353 cf Embedded = 43,695 cf x 40.0% Voids #3 889.75' 353 cf 8.0" Round Pipe Storage Inside #1 L= 1,010.0' #4 892.05' 353 cf 8.0" Round Pipe Storage Inside #2 L= 1,010.0' 33,274 cf Total Available Storage Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 889.75 22,024 0 0 892.05 22,024 50,655 50,655 Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 892.05 22,024 0 0 894.05 22,024 44,048 44,048 Device Routing Invert Outlet Devices #1 Primary 889.75'12.0" Round Culvert L= 45.0' RCP, sq.cut end projecting, Ke= 0.500 Inlet / Outlet Invert= 889.75' / 889.43' S= 0.0071 '/' Cc= 0.900 n= 0.011 Concrete pipe, straight & clean, Flow Area= 0.79 sf #2 Device 1 890.55'8.0" Vert. Orifice/Grate C= 0.600 #3 Device 1 892.72'8.0" Vert. Orifice/Grate C= 0.600 #4 Discarded 889.75'0.060 in/hr Exfiltration over Surface area Phase-In= 0.01' Discarded OutFlow Max=0.03 cfs @ 3.36 hrs HW=889.76' (Free Discharge) 4=Exfiltration (Exfiltration Controls 0.03 cfs) Primary OutFlow Max=0.46 cfs @ 12.51 hrs HW=890.94' TW=0.00' (Dynamic Tailwater) 1=Culvert (Passes 0.46 cfs of 3.09 cfs potential flow) 2=Orifice/Grate (Orifice Controls 0.46 cfs @ 2.14 fps) 3=Orifice/Grate ( Controls 0.00 cfs) Type II 24-hr 100y 24hr Old Rainfall=6.00"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 486HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Pond 41.3P: South West Inflow Outflow Discarded Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)5 4 3 2 1 0 Inflow Area=0.686 ac Peak Elev=890.94' Storage=8,134 cf 5.10 cfs 0.49 cfs 0.03 cfs 0.46 cfs Type II 24-hr 100y 24hr Old Rainfall=6.00"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 487HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Pond 44P: Wetland 4 Inflow Area = 24.628 ac, 36.70% Impervious, Inflow Depth = 2.71" for 100y 24hr Old event Inflow = 29.89 cfs @ 12.11 hrs, Volume= 5.554 af Outflow = 29.87 cfs @ 12.12 hrs, Volume= 5.553 af, Atten= 0%, Lag= 0.3 min Primary = 29.87 cfs @ 12.12 hrs, Volume= 5.553 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 884.69' @ 12.12 hrs Surf.Area= 2,560 sf Storage= 1,146 cf Plug-Flow detention time= 2.2 min calculated for 5.553 af (100% of inflow) Center-of-Mass det. time= 1.8 min ( 1,003.6 - 1,001.8 ) Volume Invert Avail.Storage Storage Description #1 884.00' 37,633 cf Custom Stage Data (Prismatic) Listed below (Recalc) Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 884.00 870 0 0 884.50 1,980 713 713 885.00 3,500 1,370 2,083 886.00 7,800 5,650 7,733 887.00 14,000 10,900 18,633 888.00 24,000 19,000 37,633 Device Routing Invert Outlet Devices #1 Primary 884.03'Asymmetrical Weir, C= 3.27 Offset (feet) 0.00 51.00 133.60 176.00 217.30 239.00 Elev. (feet) 889.78 886.05 884.03 885.84 889.00 889.78 Primary OutFlow Max=29.86 cfs @ 12.12 hrs HW=884.69' TW=0.00' (Dynamic Tailwater) 1=Asymmetrical Weir (Weir Controls 29.86 cfs @ 1.06 fps) Type II 24-hr 100y 24hr Old Rainfall=6.00"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 488HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Pond 44P: Wetland 4 Inflow Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)32 30 28 26 24 22 20 18 16 14 12 10 8 6 4 2 0 Inflow Area=24.628 ac Peak Elev=884.69' Storage=1,146 cf 29.89 cfs 29.87 cfs Type II 24-hr 100y 24hr Old Rainfall=6.00"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 489HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Pond 46P: Triangle Basin Inflow Area = 2.229 ac, 19.60% Impervious, Inflow Depth = 4.17" for 100y 24hr Old event Inflow = 12.45 cfs @ 12.04 hrs, Volume= 0.774 af Outflow = 8.99 cfs @ 12.13 hrs, Volume= 0.774 af, Atten= 28%, Lag= 5.3 min Discarded = 0.01 cfs @ 12.13 hrs, Volume= 0.014 af Primary = 8.98 cfs @ 12.13 hrs, Volume= 0.760 af Secondary = 0.00 cfs @ 0.00 hrs, Volume= 0.000 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 888.42' @ 12.13 hrs Surf.Area= 6,357 sf Storage= 4,256 cf Plug-Flow detention time= 39.4 min calculated for 0.774 af (100% of inflow) Center-of-Mass det. time= 39.5 min ( 837.7 - 798.2 ) Volume Invert Avail.Storage Storage Description #1 884.37' 1,087 cf Sand section (Prismatic) Listed below (Recalc) 3,648 cf Overall - 24 cf Embedded = 3,623 cf x 30.0% Voids #2 884.37' 24 cf 8.0" Round Pipe Storage Inside #1 L= 70.0' #3 886.67' 159 cf Topsoil (Prismatic) Listed below (Recalc) 793 cf Overall x 20.0% Voids #4 887.17' 14,801 cf Open pond (Prismatic) Listed below (Recalc) 16,071 cf Total Available Storage Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 884.37 1,586 0 0 886.67 1,586 3,648 3,648 Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 886.67 1,586 0 0 887.17 1,586 793 793 Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 887.17 1,586 0 0 890.90 6,350 14,801 14,801 Device Routing Invert Outlet Devices #1 Primary 884.37'18.0" Round Culvert L= 125.0' RCP, sq.cut end projecting, Ke= 0.500 Inlet / Outlet Invert= 884.37' / 884.00' S= 0.0030 '/' Cc= 0.900 n= 0.011 Concrete pipe, straight & clean, Flow Area= 1.77 sf #2 Device 1 885.17'12.0" Vert. Orifice/Grate C= 0.600 #3 Device 1 887.41'12.0" Vert. Orifice/Grate C= 0.600 #4 Secondary 890.75'20.0' long x 5.0' breadth Broad-Crested Rectangular Weir Head (feet) 0.20 0.40 0.60 0.80 1.00 1.20 1.40 1.60 1.80 2.00 2.50 3.00 3.50 4.00 4.50 5.00 5.50 Coef. (English) 2.34 2.50 2.70 2.68 2.68 2.66 2.65 2.65 2.65 Type II 24-hr 100y 24hr Old Rainfall=6.00"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 490HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC 2.65 2.67 2.66 2.68 2.70 2.74 2.79 2.88 #5 Discarded 884.37'0.060 in/hr Exfiltration over Surface area Phase-In= 0.01' Discarded OutFlow Max=0.01 cfs @ 12.13 hrs HW=888.42' (Free Discharge) 5=Exfiltration (Exfiltration Controls 0.01 cfs) Primary OutFlow Max=8.98 cfs @ 12.13 hrs HW=888.42' TW=0.00' (Dynamic Tailwater) 1=Culvert (Passes 8.98 cfs of 13.69 cfs potential flow) 2=Orifice/Grate (Orifice Controls 6.27 cfs @ 7.99 fps) 3=Orifice/Grate (Orifice Controls 2.71 cfs @ 3.44 fps) Secondary OutFlow Max=0.00 cfs @ 0.00 hrs HW=884.37' TW=0.00' (Dynamic Tailwater) 4=Broad-Crested Rectangular Weir ( Controls 0.00 cfs) Pond 46P: Triangle Basin Inflow Outflow Discarded Primary Secondary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)13 12 11 10 9 8 7 6 5 4 3 2 1 0 Inflow Area=2.229 ac Peak Elev=888.42' Storage=4,256 cf 12.45 cfs 8.99 cfs 0.01 cfs 8.98 cfs 0.00 cfs Type II 24-hr 100y 24hr Old Rainfall=6.00"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 491HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Pond 47P: Bluff Creek - West Basin Inflow Area = 7.031 ac, 70.52% Impervious, Inflow Depth = 5.15" for 100y 24hr Old event Inflow = 49.96 cfs @ 11.98 hrs, Volume= 3.018 af Outflow = 2.25 cfs @ 13.35 hrs, Volume= 3.018 af, Atten= 95%, Lag= 81.9 min Discarded = 0.30 cfs @ 12.19 hrs, Volume= 1.141 af Primary = 1.95 cfs @ 13.35 hrs, Volume= 1.877 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 910.68' @ 13.35 hrs Surf.Area= 214,600 sf Storage= 83,341 cf Plug-Flow detention time= 966.6 min calculated for 3.018 af (100% of inflow) Center-of-Mass det. time= 966.7 min ( 1,731.3 - 764.6 ) Volume Invert Avail.Storage Storage Description #1 908.20' 73,521 cf Custom Stage Data (Prismatic) Listed below (Recalc) 246,790 cf Overall - 1,719 cf Embedded = 245,071 cf x 30.0% Voids #2 910.50' 85,152 cf Custom Stage Data (Prismatic) Listed below (Recalc) 214,600 cf Overall - 1,719 cf Embedded = 212,881 cf x 40.0% Voids #3 908.20' 1,719 cf 8.0" Round Pipe Storage Inside #1 L= 4,925.0' #4 910.50' 1,719 cf 8.0" Round Pipe Storage Inside #2 L= 4,925.0' 162,112 cf Total Available Storage Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 908.20 107,300 0 0 910.50 107,300 246,790 246,790 Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 910.50 107,300 0 0 912.50 107,300 214,600 214,600 Device Routing Invert Outlet Devices #1 Primary 908.20'12.0" Round Culvert L= 307.0' RCP, square edge headwall, Ke= 0.500 Inlet / Outlet Invert= 908.20' / 905.13' S= 0.0100 '/' Cc= 0.900 n= 0.011 Concrete pipe, straight & clean, Flow Area= 0.79 sf #2 Device 1 909.00'8.0" Vert. Orifice/Grate C= 0.600 #3 Device 1 911.24'8.0" Vert. Orifice/Grate C= 0.600 #4 Discarded 908.20'0.060 in/hr Exfiltration over Surface area Phase-In= 0.01' Discarded OutFlow Max=0.30 cfs @ 12.19 hrs HW=910.50' (Free Discharge) 4=Exfiltration (Exfiltration Controls 0.30 cfs) Primary OutFlow Max=1.95 cfs @ 13.35 hrs HW=910.68' TW=0.00' (Dynamic Tailwater) 1=Culvert (Passes 1.95 cfs of 4.64 cfs potential flow) 2=Orifice/Grate (Orifice Controls 1.95 cfs @ 5.59 fps) 3=Orifice/Grate ( Controls 0.00 cfs) Type II 24-hr 100y 24hr Old Rainfall=6.00"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 492HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Pond 47P: Bluff Creek - West Basin Inflow Outflow Discarded Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)55 50 45 40 35 30 25 20 15 10 5 0 Inflow Area=7.031 ac Peak Elev=910.68' Storage=83,341 cf 49.96 cfs 2.25 cfs 0.30 cfs1.95 cfs Type II 24-hr 100y 24hr Old Rainfall=6.00"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 493HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Pond 48P: Bluff Creek - East Basin Inflow Area = 3.441 ac, 81.34% Impervious, Inflow Depth = 5.39" for 100y 24hr Old event Inflow = 29.09 cfs @ 11.96 hrs, Volume= 1.546 af Outflow = 2.09 cfs @ 12.51 hrs, Volume= 1.546 af, Atten= 93%, Lag= 32.9 min Discarded = 0.14 cfs @ 12.04 hrs, Volume= 0.502 af Primary = 1.94 cfs @ 12.51 hrs, Volume= 1.045 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 897.82' @ 12.51 hrs Surf.Area= 104,170 sf Storage= 40,126 cf Plug-Flow detention time= 726.7 min calculated for 1.546 af (100% of inflow) Center-of-Mass det. time= 726.8 min ( 1,476.0 - 749.2 ) Volume Invert Avail.Storage Storage Description #1 895.35' 35,688 cf Custom Stage Data (Prismatic) Listed below (Recalc) 119,795 cf Overall - 834 cf Embedded = 118,961 cf x 30.0% Voids #2 897.65' 41,334 cf Custom Stage Data (Prismatic) Listed below (Recalc) 104,170 cf Overall - 834 cf Embedded = 103,336 cf x 40.0% Voids #3 895.35' 834 cf 8.0" Round Pipe Storage Inside #1 L= 2,390.0' #4 897.65' 834 cf 8.0" Round Pipe Storage Inside #2 L= 2,390.0' 78,691 cf Total Available Storage Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 895.35 52,085 0 0 897.65 52,085 119,795 119,795 Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 897.65 52,085 0 0 899.65 52,085 104,170 104,170 Device Routing Invert Outlet Devices #1 Primary 895.35'12.0" Round Culvert L= 637.0' RCP, square edge headwall, Ke= 0.500 Inlet / Outlet Invert= 895.35' / 888.98' S= 0.0100 '/' Cc= 0.900 n= 0.011 Concrete pipe, straight & clean, Flow Area= 0.79 sf #2 Device 1 896.15'8.0" Vert. Orifice/Grate C= 0.600 #3 Device 1 898.39'8.0" Vert. Orifice/Grate C= 0.600 #4 Discarded 895.35'0.060 in/hr Exfiltration over Surface area Phase-In= 0.01' Discarded OutFlow Max=0.14 cfs @ 12.04 hrs HW=897.67' (Free Discharge) 4=Exfiltration (Exfiltration Controls 0.14 cfs) Primary OutFlow Max=1.94 cfs @ 12.51 hrs HW=897.82' TW=0.00' (Dynamic Tailwater) 1=Culvert (Passes 1.94 cfs of 4.44 cfs potential flow) 2=Orifice/Grate (Orifice Controls 1.94 cfs @ 5.56 fps) 3=Orifice/Grate ( Controls 0.00 cfs) Type II 24-hr 100y 24hr Old Rainfall=6.00"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 494HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Pond 48P: Bluff Creek - East Basin Inflow Outflow Discarded Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)32 30 28 26 24 22 20 18 16 14 12 10 8 6 4 2 0 Inflow Area=3.441 ac Peak Elev=897.82' Storage=40,126 cf 29.09 cfs 2.09 cfs 0.14 cfs1.94 cfs Type II 24-hr 100y 24hr Old Rainfall=6.00"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 495HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Pond 48P(2): Bluff Creek - East Basin Inflow Area = 2.152 ac, 68.04% Impervious, Inflow Depth = 5.13" for 100y 24hr Old event Inflow = 14.99 cfs @ 12.01 hrs, Volume= 0.920 af Outflow = 2.19 cfs @ 12.34 hrs, Volume= 0.920 af, Atten= 85%, Lag= 19.6 min Discarded = 0.07 cfs @ 12.04 hrs, Volume= 0.226 af Primary = 2.13 cfs @ 12.34 hrs, Volume= 0.693 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 898.48' @ 12.34 hrs Surf.Area= 48,858 sf Storage= 21,529 cf Plug-Flow detention time= 518.4 min calculated for 0.920 af (100% of inflow) Center-of-Mass det. time= 518.5 min ( 1,279.7 - 761.2 ) Volume Invert Avail.Storage Storage Description #1 895.75' 16,739 cf Custom Stage Data (Prismatic) Listed below (Recalc) 56,187 cf Overall - 391 cf Embedded = 55,795 cf x 30.0% Voids #2 898.05' 19,387 cf Custom Stage Data (Prismatic) Listed below (Recalc) 48,858 cf Overall - 391 cf Embedded = 48,467 cf x 40.0% Voids #3 895.75' 391 cf 8.0" Round Pipe Storage Inside #1 L= 1,121.0' #4 898.05' 391 cf 8.0" Round Pipe Storage Inside #2 L= 1,121.0' 36,908 cf Total Available Storage Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 895.75 24,429 0 0 898.05 24,429 56,187 56,187 Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 898.05 24,429 0 0 900.05 24,429 48,858 48,858 Device Routing Invert Outlet Devices #1 Primary 895.75'8.0" Round Culvert L= 50.0' RCP, square edge headwall, Ke= 0.500 Inlet / Outlet Invert= 895.75' / 895.25' S= 0.0100 '/' Cc= 0.900 n= 0.011 Concrete pipe, straight & clean, Flow Area= 0.35 sf #2 Device 1 896.55'8.0" Vert. Orifice/Grate C= 0.600 #3 Device 1 898.79'8.0" Vert. Orifice/Grate C= 0.600 #4 Discarded 895.75'0.060 in/hr Exfiltration over Surface area Phase-In= 0.01' Discarded OutFlow Max=0.07 cfs @ 12.04 hrs HW=898.08' (Free Discharge) 4=Exfiltration (Exfiltration Controls 0.07 cfs) Primary OutFlow Max=2.13 cfs @ 12.34 hrs HW=898.48' TW=0.00' (Dynamic Tailwater) 1=Culvert (Passes 2.13 cfs of 2.42 cfs potential flow) 2=Orifice/Grate (Orifice Controls 2.13 cfs @ 6.09 fps) 3=Orifice/Grate ( Controls 0.00 cfs) Type II 24-hr 100y 24hr Old Rainfall=6.00"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 496HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Pond 48P(2): Bluff Creek - East Basin Inflow Outflow Discarded Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 Inflow Area=2.152 ac Peak Elev=898.48' Storage=21,529 cf 14.99 cfs 2.19 cfs 0.07 cfs 2.13 cfs Type II 24-hr 100y 24hr Old Rainfall=6.00"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 497HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Pond 71P: Interlachen [63] Warning: Exceeded Reach 72R INLET depth by 1.53' @ 12.59 hrs Inflow Area = 30.860 ac, 27.80% Impervious, Inflow Depth = 4.42" for 100y 24hr Old event Inflow = 165.43 cfs @ 12.00 hrs, Volume= 11.364 af Outflow = 26.26 cfs @ 12.44 hrs, Volume= 11.351 af, Atten= 84%, Lag= 26.8 min Primary = 26.26 cfs @ 12.44 hrs, Volume= 11.351 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 874.01' @ 12.44 hrs Surf.Area= 68,585 sf Storage= 233,723 cf Plug-Flow detention time= 716.5 min calculated for 11.351 af (100% of inflow) Center-of-Mass det. time= 715.8 min ( 1,501.2 - 785.4 ) Volume Invert Avail.Storage Storage Description #1 870.00' 381,460 cf Custom Stage Data (Prismatic) Listed below (Recalc) Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 870.00 50,570 0 0 872.00 56,860 107,430 107,430 875.00 74,330 196,785 304,215 876.00 80,160 77,245 381,460 Device Routing Invert Outlet Devices #1 Primary 870.00'24.0" Round Culvert L= 33.0' RCP, square edge headwall, Ke= 0.500 Inlet / Outlet Invert= 870.00' / 869.67' S= 0.0100 '/' Cc= 0.900 n= 0.012, Flow Area= 3.14 sf #2 Device 1 866.61'24.0" Round Culvert L= 21.0' RCP, end-section conforming to fill, Ke= 0.500 Inlet / Outlet Invert= 866.50' / 866.61' S= -0.0052 '/' Cc= 0.900 n= 0.012, Flow Area= 3.14 sf Primary OutFlow Max=26.26 cfs @ 12.44 hrs HW=874.01' TW=870.48' (Dynamic Tailwater) 1=Culvert (Inlet Controls 26.26 cfs @ 8.36 fps) 2=Culvert (Passes 26.26 cfs of 28.44 cfs potential flow) Type II 24-hr 100y 24hr Old Rainfall=6.00"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 498HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Pond 71P: Interlachen Inflow Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)180 170 160 150 140 130 120 110 100 90 80 70 60 50 40 30 20 10 0 Inflow Area=30.860 ac Peak Elev=874.01' Storage=233,723 cf 165.43 cfs 26.26 cfs Type II 24-hr 100y 24hr Old Rainfall=6.00"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 499HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Summary for Pond 72P: South MNDOT M9 Wetland Inflow Area = 115.998 ac, 28.75% Impervious, Inflow Depth = 3.42" for 100y 24hr Old event Inflow = 176.82 cfs @ 12.15 hrs, Volume= 33.042 af Outflow = 5.26 cfs @ 24.27 hrs, Volume= 32.682 af, Atten= 97%, Lag= 727.3 min Primary = 5.26 cfs @ 24.27 hrs, Volume= 32.682 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-360.00 hrs, dt= 0.01 hrs Peak Elev= 871.94' @ 24.27 hrs Surf.Area= 529,995 sf Storage= 1,101,698 cf Plug-Flow detention time= 2,928.9 min calculated for 32.681 af (99% of inflow) Center-of-Mass det. time= 2,858.9 min ( 3,973.5 - 1,114.6 ) Volume Invert Avail.Storage Storage Description #1 869.50' 2,891,990 cf Custom Stage Data (Prismatic) Listed below (Recalc) Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 869.50 214,970 0 0 870.00 433,070 162,010 162,010 871.00 489,600 461,335 623,345 872.00 532,650 511,125 1,134,470 875.00 639,030 1,757,520 2,891,990 Device Routing Invert Outlet Devices #1 Primary 869.00'18.0" Round Culvert L= 276.0' RCP, square edge headwall, Ke= 0.500 Inlet / Outlet Invert= 869.00' / 866.93' S= 0.0075 '/' Cc= 0.900 n= 0.013 Concrete pipe, straight & clean, Flow Area= 1.77 sf #2 Device 1 869.50'12.0" Vert. Orifice/Grate C= 0.600 #3 Device 2 869.36'18.0" Round Culvert L= 172.0' RCP, end-section conforming to fill, Ke= 0.500 Inlet / Outlet Invert= 868.50' / 869.36' S= -0.0050 '/' Cc= 0.900 n= 0.013 Concrete pipe, straight & clean, Flow Area= 1.77 sf Primary OutFlow Max=5.26 cfs @ 24.27 hrs HW=871.94' (Free Discharge) 1=Culvert (Passes 5.26 cfs of 10.38 cfs potential flow) 2=Orifice/Grate (Orifice Controls 5.26 cfs @ 6.70 fps) 3=Culvert (Passes 5.26 cfs of 9.16 cfs potential flow) Type II 24-hr 100y 24hr Old Rainfall=6.00"Avienda - DP 7.3 - Ultimate Printed 5/18/2020Prepared by Landform Professional Services Page 500HydroCAD® 10.00-21 s/n 01542 © 2018 HydroCAD Software Solutions LLC Pond 72P: South MNDOT M9 Wetland Inflow Primary Hydrograph Time (hours) 360340320300280260240220200180160140120100806040200Flow (cfs)190 180 170 160 150 140 130 120 110 100 90 80 70 60 50 40 30 20 10 0 Inflow Area=115.998 ac Peak Elev=871.94' Storage=1,101,698 cf 176.82 cfs 5.26 cfs SCD14001 Landform® and Site to Finish® are registered service marks of Landform Professional Services., LLC APPENDIX F Miscellaneous Drainage Calculations: Table 1 - Drainage Area Summaries Table 2 – Runoff Volume Summary: Lake Susan Table 3 – Runoff Volume Summary: Bluff Creek Table 4 – Peak Runoff Rate – To Powers - South Table 5 – Peak Runoff Rate – East Culvert Table 6 – Peak Runoff Rate – To Powers - North Table 7 – Peak Runoff Rate – Lyman NE Table 8 – Peak Runoff Rate – Lyman North Table 9 – Peak Runoff Rate – NW and Wetland 6 Table 10 – Peak Runoff Rate – Wetland 3 Table 11 – Peak Runoff Rate – West-South Table 12 – Peak Runoff Rate – Southwest Table 13 – Peak Runoff Rate – East Woods Table 14 – Peak Runoff Rate – Wetland 4 Channel Table 15 – Peak Runoff Rate – South Table 16 – Peak Runoff Rate – Southeast Table 17 – Comparative Floodplain Storage Table 18 – Infiltration Areas Ultimate Table 19 – Abstraction Areas Phases 1 & 2 Table 20 – Watershed Buffer Averages Table 21 – Pond Design Level Summary Culvert Check – Powers Blvd. 100-Year DATE 05/03/23 PROJECT NAME Avienda Rowhomes PROJECT NUMBER SCD14001.004 PROJECT LOCATION Chanhassen, MN BY Call Existing Lake Susan On Site Drainage On Site Drainage Indir. Conn. Drainage ID Area (sf)Area (ac)Imp. Area Water/Wetland Perv. Area Drainage ID Area (sf)Area (ac)Water Area Impervious 00S To Powers - South 29,120 0.669 0 0 29,120 1S North East 1,266,860 29.083 1,229,785 37,075 0 0 0 0S To Powers - North 27,760 0.637 0 0 27,760 11S East 233,115 5.352 220,915 12,200 0 0 0 1S To Lyman - NE 90,310 2.073 0 0 90,310 13S Rowhomes 251,740 5.779 78,550 0 6,585 173,190 0 2S Wetland 2 687,520 15.783 0 101,970 585,550 TOTAL On Site (s.f.)1,751,715 40.214 1,529,250 49,275 6,585 173,190 0 3S Wetland 1 560,145 12.859 0 56,025 504,120 40.214 35.107 1.131 0.151 3.976 0.000 4S Wetland 8 232,825 5.345 0 2,815 230,010 TOTAL On Site 1,627,680 37.366 0 160,810 1,466,870 90.1% Off Site Drainage Off Site Drainage Indir. Conn. Drainage ID Area (sf)Area (ac)Imp. Area Water/Wetland Perv. Area Drainage ID Area (sf)Area (ac)Water Area Impervious 4oS 35,675 0.819 0 0 35,675 11oS Offsite To East Pond 35,675 0.819 35,675 0 0 0 0 (16oS)East Offsite 4,669 0.107 0 0 4,669 See South Bluff Creek for 16oS Total Offsite Drainage 40,344 0.926 0 0 100.0%TOTAL Off Site (s.f.)35,675 0.819 35,675 0 0 0 0 Total Existing to Lake Susan 1,668,024 38.293 0 160,810 1,466,871 1,787,390 41.033 1,564,925 49,275 6,585 173,190 0 41.033 35.926 1.131 0.151 3.976 0.000 Difference to Lake Susan (s.f.)119,366 7.2% TABLE 1a - DRAINAGE AREA SUMMARIES (Rowhomes/Phases 1-3) *Per RPBCWD Rule J, Section 2.2 d, requirements do not apply to trails, sidewalks, and retaining walls that do not exceed 10 feet in width and are bordered downgradient by a pervious area extending at least half the trail width. Phase 3 Lake Susan Dir. Conn. Imperv. Area Dir. Conn. Imperv. Area Perv. Area Incl. Trails & Walks* Perv. Area Incl. Trails & Walks Trails & Walks* Trails & Walks Total Phase 3 to Lake Susan (s.f.) Landform®, SensiblyGreen® and Site to Finish® are registered service marks of Landform Professional Services, LLC. L A N D F O R M 1 DATE 05/03/23 PROJECT NAME Avienda Rowhomes PROJECT NUMBER SCD14001.004 PROJECT LOCATION Chanhassen, MN BY Call TABLE 1a - DRAINAGE AREA SUMMARIES (Rowhomes/Phases 1-3) *Per RPBCWD Rule J, Section 2.2 d, requirements do not apply to trails, sidewalks, and retaining walls that do not exceed 10 feet in width and are bordered downgradient by a pervious area extending at least half the trail width. Existing Bluff Creek Drainage On Site Drainage On Site Drainage Indir. Conn. Drainage ID Area (sf)Area (ac)Imp. Area Water/Wetland Perv. Area Drainage ID Area (sf)Area (ac)Water Area Impervious 5S NW 627,245 14.400 0 0 627,245 13.1S Front Yards - No. RHs 19,930 0.458 17,850 0 3,055 2,080 0 5aS To Lyman - North 67,165 1.542 0 0 67,165 21S (24S)Northwest 283,295 6.504 264,275 0 0 0 19,020 TOTAL On Site 694,410 15.941 0 0 694,410 22S Direct to Wetland 6 41,685 0.957 41,685 0 0 0 0 25S West - North 199,050 4.570 81,685 0 0 99,930 17,435 28S Avienda Pkwy - NW 227,645 5.226 162,665 0 21,540 64,980 0 TOTAL On Site (s.f.)771,605 17.714 568,160 0 24,595 166,990 36,455 Off Site Drainage Off Site Drainage Indir. Conn. Drainage ID Area (sf)Area (ac)Imp. Area Water/Wetland Perv. Area Drainage ID Area (sf)Area (ac)Water Area Impervious 5oS From Lyman 10,548 0.242 0 0 10,548 22oS From Lyman 10,548 0.242 10,548 0 0 0 0 (29oS)North Offsite 5,467 0.126 0 0 5,467 (29oS)North Offsite Imperv.5,467 0.126 4,076 0 506 1,391 0 Total Offsite 16,015 0.368 0 0 16,015 TOTAL Off Site (s.f.)16,015 0.368 14,624 0 506 1,391 0 Total Ex. NW Bluff Creek Drainage 710,425 16.31 0 0 710,425 787,620 18.081 582,784 0 25,101 168,381 36,455 18.08 13.38 0.00 0.58 3.87 5.0% 77,195 1.772 10.9% On Site Drainage On Site Drainage Indir. Conn. Drainage ID Area (sf)Area (ac)Imp. Area Water/Wetland Perv. Area Drainage ID Area (sf)Area (ac)Water Area Impervious 6S West - North 225,525 5.177 0 25,440 200,085 31S West - Central 38,150 0.876 24,670 0 0 3,610 9,870 7S West - South 137,060 3.146 0 0 137,060 33S Direct to Wetland 3 74,385 1.708 43,435 29,365 0 0 1,585 10S Southwest 165,080 3.790 0 0 165,080 34S West Woods 105,570 2.424 105,570 0 0 0 0 TOTAL On Site 527,665 12.114 0 25,440 502,225 35S Southwest 165,040 3.789 165,040 0 0 0 0 TOTAL On Site 383,145 8.796 338,715 29,365 0 15,065 11,455 Off Site Drainage Drainage ID Area (sf)Area (ac)Imp. Area Water/Wetland Perv. Area Off Site Drainage Wetland/Indir. Conn. 6oS Offsite West - No.115,865 2.660 20,000 12,720 83,145 Drainage ID Area (sf)Area (ac)Water Area Impervious 7oS Offsite West - So.58,190 1.336 0 0 58,190 33oS Offsite West - No.115,865 2.660 83,145 12,720 0 0 20,000 (36oS)Southwest Offsite 1,628 0.037 0 0 1,628 34oS Offsite Direct W 32,845 0.754 32,845 0 0 0 0 TOTAL Off Site 175,683 4.033 20,000 12,720 142,963 34dS Offsite West - So.25,345 0.582 19,655 0 3,640 5,690 0 (36oS)Southwest Offsite Imp.1,628 0.037 1,628 0 0 0 0 TOTAL Off Site 175,683 4.033 137,273 12,720 3,640 25,690 20,000 58,190 Total Ex. SW Bluff Creek Drainage 703,348 16.147 20,000 38,160 645,188 0 558,828 12.829 475,988 42,085 3,640 40,755 31,455 (144,520)-3.318 -20.5% Existing NW Bluff Creek Drainage Phase 3 Bluff Creek Drainage Phase 3 NW Bluff Creek Drainage Total Phase 3 NW Bluff Creek Drainage Difference in NW Bluff Creek Drain. Perv. Area Incl. Trails & Walks Existing SW Bluff Creek Drainage Difference in SW Bluff Creek Drain. Phase 3 So-W Bluff Creek Drainage Total Phase 3 So-W Bluff Creek Drainage Perv. Area Incl. Trails & Walks* Perv. Area Incl. Trails & Walks* Trails & Walks* Trails & Walks* Trails & Walks Trails & Walks Perv. Area Incl. Trails & Walks Dir. Conn. Imperv. Area Dir. Conn. Imperv. Area Dir. Conn. Imperv. Area Dir. Conn. Imperv. Area Landform®, SensiblyGreen® and Site to Finish® are registered service marks of Landform Professional Services, LLC. L A N D F O R M 2 DATE 05/03/23 PROJECT NAME Avienda Rowhomes PROJECT NUMBER SCD14001.004 PROJECT LOCATION Chanhassen, MN BY Call TABLE 1a - DRAINAGE AREA SUMMARIES (Rowhomes/Phases 1-3) *Per RPBCWD Rule J, Section 2.2 d, requirements do not apply to trails, sidewalks, and retaining walls that do not exceed 10 feet in width and are bordered downgradient by a pervious area extending at least half the trail width. On Site Drainage On Site Drainage Indir. Conn. Drainage ID Area (sf)Area (ac)Imp. Area Water/Wetland Perv. Area Drainage ID Area (sf)Area (ac)Water Area Impervious 13.2S RH Front Yards - S 21,220 1.164 20,580 0 940 0 640 40.4S So. Villa's Drive 63,545 1.164 29,980 0 0 33,565 0 41.3S South-West 157,310 1.164 149,020 8,290 0 0 0 8S South - Central 1,300,770 29.862 0 20,961 1,279,809 42.1S South Fringe 21,960 1.164 21,960 0 0 0 0 9.1S East Woods 140,359 3.222 0 0 140,359 42.2S Southeast Fringe 8,870 0.204 8,870 0 0 0 0 9.2S Northeast Woods 88,007 2.020 0 0 88,007 43.1S East Woods 140,400 3.223 140,400 0 0 0 0 9.3S South 258,057 5.924 0 0 258,057 43.2S Northeast Woods 76,080 1.747 76,080 0 0 0 0 9.4S Southeast 323,827 7.434 0 0 323,827 44S North Woods 446,125 10.242 446,125 0 0 0 0 TOTAL On Site 2,111,020 48.462 0 20,961 2,090,059 46S Direct to Triangle Basin 63,170 1.450 63,170 0 0 0 0 46uS Rear of So. Townhomes 57,455 1.319 38,455 0 0 0 19,000 47S B.C. Pkwy - West 103,380 2.373 52,305 0 19,940 51,075 0 48S B.C . Pkwy - East 168,700 3.873 73,780 0 23,466 94,920 0 52S South Center 292,770 6.721 292,770 0 0 0 0 54S South East 266,110 6.109 266,110 0 0 0 0 55S Dir. To Bluff Cr, East B.167,215 3.839 167,215 0 0 0 0 TOTAL On Site 2,054,310 42.264 1,846,820 8,290 44,346 199,200 19,640 Off Site Drainage Wetland/Indir. Conn. Drainage ID Area (sf)Area (ac)Water Area Impervious (16oS)East Offsite Imperv.4,669 0.107 784 0 541 3,885 0 TOTAL Off Site (s.f.)4,669 0.107 784 0 541 3,885 0 2,058,979 42 1,847,604 8,290 44,887 203,085 19,640 Difference in So. Bluff Creek Drain.(56,710)-1.302 -2.7% Indir. Conn. Drainage Area Area (sf)Area (ac)Imp. Area Water/Wetland Perv. Area Drainage Area Area (sf)Area (ac)Water Area Impervious Ex. NW Drainage 694,410 15.941 0 0 694,410 Proposed NW Drainage 771,605 17.714 568,160 0 24,595 166,990 36,455 Ex. SW Drainage 527,665 12.114 0 0 527,665 Proposed So-W Drainage 383,145 8.796 338,715 29,365 0 15,065 11,455 Ex. So. Drainage 2,111,020 48.462 0 0 2,111,020 Proposed So. Drainage 2,054,310 47.160 1,846,820 8,290 44,346 199,200 19,640 3,333,095 76.517 0 0 3,333,095 3,209,060 73.670 2,753,695 37,655 68,941 381,255 67,550 Difference in On Site Drainage Areas (124,035)-2.847 -3.7% Existing Off Site Bluff Creek Drainage Indir. Conn. Drainage Area Area (sf)Area (ac)Imp. Area Water/Wetland Perv. Area Drainage Area Area (sf)Area (ac)Water Area Impervious Ex. NW Drainage 16,015 0.368 0 0 16,015 Proposed NW Drainage 16,015 0.368 14,624 0 506 1,391 0 Ex. SW Drainage 175,683 4.033 20,000 0 155,683 Proposed So-W Drainage 175,683 4.033 137,273 12,720 3,640 25,690 20,000 Total Ex. Off Site to Bluff Creek 191,698 4.401 20,000 0 171,698 Proposed So. Drainage 4,669 0 784 0 541 3,885 0 196,367 5 152,681 12,720 4,687 30,966 20,000 Total Existing to Bluff Creek 3,524,793 80.918 20,000 0 3,504,793 3,405,427 78.178 2,906,376 50,375 73,628 412,221 (119,366)-2.740 -3.4% Perv. Area Incl. Trails & Walks* Perv. Area Incl. Trails & Walks* Dir. Conn. Imperv. Area Difference in Bluff Creek Drain. Total Phase 3 to Bluff Creek Phase 3 So. Bluff Creek Drainage Total Proposed Off Site to Bluff Creek Total Proposed On Site to Bluff Creek Phase 3 Off Site Bluff Creek Drainage Total Ex. On Site to Bluff Creek Existing So. Bluff Creek Drainage Existing On Site Bluff Creek Drainage Phase 3 On Site Bluff Creek Drainage Total Phase 3 So. Bluff Creek Drainage Trails & Walks* Trails & Walks* Perv. Area Incl. Trails & Walks Trails & Walks Dir. Conn. Imperv. Area Dir. Conn. Imperv. Area Dir. Conn. Imperv. Area Perv. Area Incl. Trails & Walks* Trails & Walks* Landform®, SensiblyGreen® and Site to Finish® are registered service marks of Landform Professional Services, LLC. L A N D F O R M 3 DATE 05/03/23 PROJECT NAME Avienda Rowhomes PROJECT NUMBER SCD14001.004 PROJECT LOCATION Chanhassen, MN BY Call TABLE 1a - DRAINAGE AREA SUMMARIES (Rowhomes/Phases 1-3) *Per RPBCWD Rule J, Section 2.2 d, requirements do not apply to trails, sidewalks, and retaining walls that do not exceed 10 feet in width and are bordered downgradient by a pervious area extending at least half the trail width. Existing Site Drainage Existing On Site Drainage Indir. Conn. Drainage Area Area (sf)Area (ac)Imp. Area Water/Wetland Perv. Area Drainage Area Area (sf)Area (ac)Water Area Impervious Total Ex. On Site Drainage 4,960,775 113.884 0 160,810 4,799,965 Total On Site Drainage 4,960,775 113.884 4,282,945 86,930 75,526 554,445 67,550 113.88 ac.12.728 1.551 0 Existing Off Site Drainage Indir. Conn. Drainage Area Area (sf)Area (ac)Imp. Area Water/Wetland Perv. Area Drainage Area Area (sf)Area (ac)Water Area Impervious Total Off Site Drainage 232,042 5.327 20,000 0 171,699 Total Off Site Drainage 232,042 5.327 188,356 12,720 4,687 30,966 20,000 0.711 0.459 0 Indir. Conn. Area (sf)Area (ac)Imp. Area Water/Wetland Perv. Area Area (sf)Area (ac)Water Area Impervious Total Existing Site Drainage Area 5,192,817 119.211 20,000 160,810 4,971,664 5,192,817 119.211 4,471,301 99,650 80,213 585,411 87,550 102.65 2.29 1.84 13.44 2.01 ac.ac.ac.ac.ac. 0Difference in Total Site Drainage Total Phase 3 Site Drainage Area Phase 3 Site Drainage Phase 3 On Site Drainage Phase 3 Off Site Drainage Trails & Walks* Trails & Walks* Trails & Walks* Dir. Conn. Imperv. Area Dir. Conn. Imperv. Area Dir. Conn. Imperv. Area Perv. Area Incl. Trails & Walks* Perv. Area Incl. Trails & Walks* Perv. Area Incl. Trails & Walks* Landform®, SensiblyGreen® and Site to Finish® are registered service marks of Landform Professional Services, LLC. L A N D F O R M 4 DATE 05/04/23 PROJECT NAME Avienda PROJECT NUMBER SCD14001 PROJECT LOCATION Chanhassen, MN BY Call Event (1R) Existing Runoff Volume (a.f.) (0S) MNDOT (ZRC) Design – Runoff Volume to Englewood Pond (a.f.) (10R) Phases 1-3 Runoff Volume (a.f.) Phases 1-3 Runoff Volume as a Percentage of Existing Runoff Volume (10R) Ultimate Runoff Volume to Englewood Pond (a.f.) Ultimate Runoff Volume as a Percentage of Existing Runoff Volume 1.1-Inch Equivalent Storm (1.32”)0.252 1.181 0.952 377.8% 0.083 32.9% 1-Year Storm (2.47”) 2.130 3.983 3.479 163.3% 1.755 82.4% 2-year (2.87”) 2.949 5.105 4.520 153.3% 2.809 95.3% 10-year (4.27”) 6.205 9.317 8.501 137.0% 7.128 114.9% Old 100-year (6.00”) 10.732 14.844 13.818 128.8% 12.045 112.2% 100-year (7.41”) 14.655 19.477 18.318 125.0% 16.579 113.1% 10-day Snow Melt 21.755 24.015 23.769 109.3% 7.164 32.9% Note: Runoff volumes are from HydroCAD and do not take into account stormwater reuse for irrigation, which would result in lower runoff volumes. TABLE 2 - RUNOFF VOLUME SUMMARY - LAKE SUSAN , SensiblyGreen® and Site to Finish® are registered service marks of Landform Professional Services, LLC. L A N D F O R M 1 DATE 05/04/23 PROJECT NAME Avienda PROJECT NUMBER SCD14001 PROJECT LOCATION Chanhassen, MN BY Call Event (6R) Existing Runoff Volume (a.f.) (50R) Phases 1-3 Runoff Volume (a.f.) Phases 1-3 Runoff as a Percentage of Existing Runoff Volume (50R) Ultimate Runoff Volume (a.f.) Ultimate Runoff as a Percentage of Existing Runoff Volume 1.1-Inch Equivalent Storm (1.32”)0.897 1.107 123.4% 0.453 50.5% 1-Year Storm (2.47”) 3.997 4.883 122.2% 3.346 83.7% 2-year (2.87”) 5.450 6.510 119.4% 4.877 89.5% 10-year (4.27”) 11.481 12.969 113.0% 11.636 101.4% 100-year (7.41”) 27.959 29.785 106.5% 28.586 102.2% 10-day Snow Melt 46.880 44.936 95.9% 29.156 62.2% Note: Runoff volumes do not account for potential stormwater reuse for irrigation. TABLE 3 - RUNOFF VOL. SUM. - BLUFF CREEK Landform®, SensiblyGreen® and Site to Finish® are registered service marks of Landform Professional Services, LLC. L A N D F O R M 1 DATE 05/27/20 PROJECT NAME Avienda PROJECT NUMBER SCD14001 PROJECT LOCATION Chanhassen, MN BY Call Event (00S) Existing Runoff Rate (cfs) (na) Phase I - Stabilized Runoff Rate (cfs)* (na) Ultimate Runoff Rate (cfs)* 2-year (2.87”) 0.60 0.00 0.00 10-year (4.27”) 1.48 0.00 0.00 100-year (7.41”) 3.81 0.00 0.00 10-day Snow Melt 0.13 0.00 0.00 TABLE 4 - PEAK RUNOFF RATE - POWERS - SO. *Note: There is no runoff in these conditions Landform®, SensiblyGreen® and Site to Finish® are registered service marks of Landform Professional Services, LLC. L A N D F O R M 1 DATE 5/4/2023 PROJECT NAME Avienda PROJECT NUMBER SCD14001 PROJECT LOCATION Chanhassen, MN BY Call Event (1R) Existing Runoff Rate (cfs) (0P) Highway 212 Design Proposed Runoff Rate* (cfs) (10R) Phases 1-3 Stabilized Runoff Rate (cfs) Phases 1-3 Peak Runoff as Percentage of Existing (10R) Ultimate Runoff Rate (cfs) Ultimate Peak Runoff as Percentage of Existing 2-year (2.87”) 18.40 62.55 (ZRC has 58.05)15.64 85.0% 4.05 22.0% 10-year (4.27”) 55.12 107.58 (ZRC has 109.91)30.95 56.2% 11.44 20.8% Old 100-Year (6.00”) 99.45 143.00 (ZRC has 179.31)48.80 49.1% 19.14 19.2% 100-year (7.41”) 128.91 162.95 91.94 71.3% 24.17 18.7% 10-day Snow Melt 7.17 7.87 7.19 100.3% 3.68 51.3% TABLE 5 - PEAK RUNOFF RATE - LAKE SUSAN , SensiblyGreen® and Site to Finish® are registered service marks of Landform Professional Services, LLC. L A N D F O R M 1 DATE 05/27/20 PROJECT NAME Avienda PROJECT NUMBER SCD14001 PROJECT LOCATION Chanhassen, MN BY Call Event (0S) Existing Runoff Rate (cfs) (na) Phase I - Stabilized Runoff Rate (cfs)* (na) Ultimate Runoff Rate (cfs)* 2-year (2.87”) 0.09 0.00 0.00 10-year (4.27”) 0.69 0.00 0.00 100-year (7.41”) 2.73 0.00 0.00 10-day Snowmelt 0.12 0.00 0.00 TABLE 6 - PEAK RUNOFF RATE - POWERS - NO. *Note: There is no runoff in these conditions Landform®, SensiblyGreen® and Site to Finish® are registered service marks of Landform Professional Services, LLC. L A N D F O R M 1 DATE 05/27/20 PROJECT NAME Avienda PROJECT NUMBER SCD14001 PROJECT LOCATION Chanhassen, MN BY Call Event (1S) Existing Runoff Rate (cfs) (na) Phase I Stabilized (cfs)* (na) Ultimate Runoff Rate (cfs)* 2-year (2.87”) 0.30 0.00 0.00 10-year (4.27”) 2.48 0.00 0.00 100-year (7.41”) 9.69 0.00 0.00 10-day Snowmelt 0.40 0.00 0.00 TABLE 7 - PEAK RUNOFF RATE - LYMAN - NE *Note: There is no runoff in these conditions Landform®, SensiblyGreen® and Site to Finish® are registered service marks of Landform Professional Services, LLC. L A N D F O R M 1 DATE 05/27/20 PROJECT NAME Avienda PROJECT NUMBER SCD14001 PROJECT LOCATION Chanhassen, MN BY Call Event (5aS) Existing Runoff Rate (cfs) (na) Phase I - Stabilized Runoff Rate (cfs)* (na) Ultimate Runoff Rate (cfs)* 2-year (2.87”) 0.39 0.00 0.00 10-year (4.27”) 2.05 0.00 0.00 100-year (7.41”) 6.98 0.00 0.00 10-day Snowmelt 0.29 0.00 0.00 TABLE 8 - PEAK RUNOFF RATE - LYMAN-NORTH *Note: There is no runoff in these conditions Landform®, SensiblyGreen® and Site to Finish® are registered service marks of Landform Professional Services, LLC. L A N D F O R M 1 DATE 05/04/23 PROJECT NAME Avienda PROJECT NUMBER SCD14001 PROJECT LOCATION Chanhassen, MN BY Call Event (3R) Existing Inflow Runoff Rate - WCA Submittal Model (cfs) (3R) Existing Inflow Runoff Rate - Current Model (cfs) (21R) Phases 1-3 Stabilized Inflow Runoff Rate (cfs) (21R) Ultimate Inflow Runoff Rate - WCA Model (cfs) (21R) Ultimate Inflow Runoff Rate - Current Model (cfs) 2-year (2.87”) 7.50 17.27 2.51 6.99 4.15 10-year (4.27”) 19.19 37.63 6.98 19.08 6.78 100-year (7.41”) 50.85 82.54 14.54 39.95 23.44 10-day Snowmelt 3.06 3.08 2.46 2.43 2.56 Event (3R) Existing Outflow Runoff Rate - WCA Submittal Model (cfs) (3R) Existing Outflow Runoff Rate - Current Model (cfs) (21R) Phases 1-3 Stabilized Inflow Runoff Rate (cfs) (21R) Ultimate Outflow Runoff Rate - WCA Model (cfs) (21R) Ultimate Outflow Runoff Rate - Current Model (cfs) 2-year (2.87”) na 16.61 2.05 na 4.14 10-year (4.27”) na 36.91 6.97 na 6.72 100-year (7.41”) na 81.59 14.53 na 23.39 10-day Snowmelt na 3.08 2.46 na 2.56 TABLE 9 - PEAK RUNOFF RATE - NW & WETL. 6 Peak Outflow Rates (Discharge from Site) Peak Inflow Rates , SensiblyGreen® and Site to Finish® are registered service marks of Landform Professional Services, LLC. L A N D F O R M 1 DATE 10/26/22 PROJECT NAME Avienda PROJECT NUMBER SCD14001 PROJECT LOCATION Chanhassen, MN BY Call Event (6P) Existing Inflow Rate - WCA Model (cfs) (6P) Existing Inflow Rate - Current Model (cfs) (33P) Phase 2 - Stabilized Inflow Rate (cfs) (33P) Ultimate Inflow Rate - WCA Model (cfs) (33P) Ultimate Inflow Rate - Current Model (cfs) 2-year (2.87”) 9.36 11.66 8.68 9.29 9.44 10-year (4.27”) 19.05 23.71 16.64 17.06 17.97 100-year (7.41”) 39.26 50.06 32.52 32.19 34.25 10-day Snowmelt 1.42 1.50 0.93 1.13 0.99 Event (6P) Existing Outflow Rate - WCA Model (cfs) (6P) Existing Outflow Rate - Current Model (cfs) (33P) Phase 2 - Stabilized Outflow Rate (cfs) (33P) Ultimate Outflow Rate - WCA Model (cfs) (33P) Ultimate Outflow Rate - Current Model (cfs) 2-year (2.87”) na 9.04 1.16 na 1.39 10-year (4.27”) na 18.58 2.16 na 2.46 100-year (7.41”) na 40.42 4.00 na 3.67 10-day Snowmelt na 1.49 0.77 na 0.81 Peak Inflow Rates Peak Outflow Rates TABLE 10 - PEAK RUNOFF RATE - WETLAND 3 , SensiblyGreen® and Site to Finish® are registered service marks of Landform Professional Services, LLC. L A N D F O R M 1 DATE 05/27/20 PROJECT NAME Avienda PROJECT NUMBER SCD14001 PROJECT LOCATION Chanhassen, MN BY Call Event (7S) Existing Runoff Rate (cfs) (34S) Phase I - Stabilized Runoff Rate (cfs) (34S) Ultimate Runoff Rate (cfs) 2-year (2.87”) 0.71 0.15 0.15 10-year (4.27”) 3.01 1.48 1.48 100-year (7.41”) 11.00 7.22 7.22 10-day Snowmelt 0.60 0.46 0.46 TABLE 11 - PEAK RUNOFF RATE - WEST WOODS Landform®, SensiblyGreen® and Site to Finish® are registered service marks of Landform Professional Services, LLC. L A N D F O R M 1 DATE 05/27/20 PROJECT NAME Avienda PROJECT NUMBER SCD14001 PROJECT LOCATION Chanhassen, MN BY Call Event (10S) Existing Runoff Rate (cfs) (35S) Phase I - Stabilized Runoff Rate (cfs) (35S) Ultimate Runoff Rate (cfs) 2-year (2.87”) 0.22 0.22 0.22 10-year (4.27”) 1.88 1.88 1.88 100-year (7.41”) 8.90 8.90 8.90 10-day Snowmelt 0.72 0.72 0.72 TABLE 12 - PEAK RUNOFF RATE SOUTHWEST Landform®, SensiblyGreen® and Site to Finish® are registered service marks of Landform Professional Services, LLC. L A N D F O R M 1 DATE 05/04/23 PROJECT NAME Avienda PROJECT NUMBER SCD14001 PROJECT LOCATION Chanhassen, MN BY Call Event (4R) Existing Runoff Rate (cfs) (30R) Phases 1-3 Stabilized Runoff Rate (cfs) (30R) Ultimate Runoff Rate (cfs) 2-year (2.87”) 6.79 2.53 2.99 10-year (4.27”) 10.72 7.31 7.27 100-year (7.41”) 31.77 18.43 18.66 10-day Snowmelt 3.06 2.17 2.20 TABLE 12a - PEAK RUNOFF RATE WEST Landform®, SensiblyGreen® and Site to Finish® are registered service marks of Landform Professional Services, LLC. L A N D F O R M 1 DATE 05/27/20 PROJECT NAME Avienda PROJECT NUMBER SCD14001 PROJECT LOCATION Chanhassen, MN BY Call Event (9.1S) Existing Runoff Rate (cfs) (43.1S) Phase I - Stabilized Runoff Rate (cfs) (43.1S) Ultimate Runoff Rate (cfs) 2-year (2.87”) 0.19 0.19 0.19 10-year (4.27”) 1.73 1.73 1.73 100-year (7.41”) 8.28 8.28 8.28 10-day Snowmelt 0.61 0.61 0.61 TABLE 13 - PEAK RUNOFF RATE - EAST WOODS Landform®, SensiblyGreen® and Site to Finish® are registered service marks of Landform Professional Services, LLC. L A N D F O R M 1 DATE 05/04/23 PROJECT NAME Avienda PROJECT NUMBER SCD14001 PROJECT LOCATION Chanhassen, MN BY Call Event (9R) Existing Runoff Rate - WCA Model (cfs) (9R) Existing Runoff Rate - Current Model (cfs) (44R) Phases 1-3 Stabilized Runoff Rate (cfs) (44S) Ultimate Runoff Rate - WCA Model (cfs) (44R) Ultimate Runoff Rate - Current Model (cfs) 2-year (2.87”) 31.63 19.25 5.69 16.01 4.03 10-year (4.27”) 41.71 45.29 21.28 41.71 14.22 100-year (7.41”) 74.58 111.61 56.50 74.58 43.57 10-day Snowmelt 6.61 6.04 4.76 6.61 3.60 Note: does not include effects of stormwater reuse for irrigation TABLE 14 - PEAK RUNOFF RATE - SOUTH & WEST , SensiblyGreen® and Site to Finish® are registered service marks of Landform Professional Services, LLC. L A N D F O R M 1 DATE 04/22/22 PROJECT NAME Avienda PROJECT NUMBER SCD14001 PROJECT LOCATION Chanhassen, MN BY Call Event (9.3S) Existing Runoff Rate (cfs) (42.1S) Phase 2 - Stabilized Runoff Rate (cfs) (42.1R) Ultimate Runoff Rate (cfs) 2-year (2.87”) 9.08 1.08 6.22 10-year (4.27”) 19.06 2.20 9.40 100-year (7.41”) 40.09 4.52 21.12 10-day Snowmelt 1.13 0.10 0.83 TABLE 15 - PEAK RUNOFF RATE - SOUTH Landform®, SensiblyGreen® and Site to Finish® are registered service marks of Landform Professional Services, LLC. L A N D F O R M 1 DATE 04/22/22 PROJECT NAME Avienda PROJECT NUMBER SCD14001 PROJECT LOCATION Chanhassen, MN BY Call Event (9.4S) Existing Runoff Rate (cfs) (42.2R) Phase 2 - Stabilized Runoff Rate (cfs) (42.2R) Ultimate Runoff Rate (cfs) 2-year (2.87”) 8.97 1.60 1.94 10-year (4.27”) 18.93 3.46 5.10 100-year (7.41”) 40.15 7.19 10.54 10-day Snowmelt 1.41 1.28 1.21 TABLE 16 - PEAK RUNOFF RATE - SOUTHEAST Landform®, SensiblyGreen® and Site to Finish® are registered service marks of Landform Professional Services, LLC. L A N D F O R M 1 TABLE 17 - COMPARATIVE FLOODPLAIN STORAGE DATE 04/22/20 PROJECT NAME Avienda PROJECT NUMBER SCD14001.LEV PROJECT LOCATION Chanhassen, MN BY CSH/CNC Elev Wetland 1 Wetland 2 Wetland 8 Existing Cumulative Storage (cf)1P 11.4P P1 Cumulative Storage (cf)11.1P 11.3P 12P 11.4P Ultimate Cumulative Storage (cf) 895.70 - - - - 896.00 2 2 - - 897.00 228 230 - - 898.00 663 893 - - 899.00 1,818 2,711 - - 900.00 5,505 8,216 - - 901.00 12,508 20,724 - - 901.66 13,279 34,003 - - 902.00 34,003 - - 903.00 34,003 - - 904.00 34,003 - - 905.00 34,003 189 189 189 189 905.40 - 34,003 189 189 906.00 4,671 38,674 - 189 53,716 53,905 907.00 41,146 79,820 22,014 - 22,203 51,780 105,685 907.61 45,734 125,554 22,203 105,685 908.00 125,554 40,353 62,556 65,522 171,207 908.30 125,554 62,556 - 171,207 909.00 - 125,554 45,166 107,722 69,040 42,248 282,495 909.90 17,135 142,689 51,189 158,911 - - 282,495 910.00 6,617 165,528 36,451 - 45,070 364,016 Existing Incremental Storage Volume (cf) Phase 1 Ultimate Landform®, SensiblyGreen® and Site to Finish® are registered service marks of Landform Professional Services, LLC. L A N D F O R M 1 DATE 05/27/20 PROJECT NAME Avienda PROJECT NUMBER SCD14001.LEV PROJECT LOCATION Chanhassen, MN BY CNC ID Name Total Area (sf) Green Space (sf) % Green Space Pervious Pavers (sf) Water Area (sf) Public Trail Area (sf) MPCA Impervious Area (sf) Required 1.0-inch MPCA Filtration Volume (cf) Filtration Area Provided (sf) % of Infil. Bed Filtration Volume (cf) Outlet Elevation Excess or (Shortage) MPCA Filtration Volume (cf) % of Required Filtration Volume Joint Area: Portion of Req'd Filtration RPBWD Impervious Area (sf) Provided Rock Bed (sf) Provided Surface Infiltration Basin Area (sf) Required (1.1-inch) Infiltration Volume (cf) Provided Infiltration Volume (cf) Excess or (Shortage) @100% (cf) % of Required Infiltration Joint Area: Portion of Req'd Infiltration 11.1S North 614,104 114,104 18.6% 0 0 0 500,000 41,667 191,215 100.0% 51,246 912.37 9,579 123.0% 500,000 191,215 0 45,833 45,892 58 100.1% 11.3S East 494,016 71,016 14.4% 0 0 0 423,000 35,250 172,601 100.0% 46,257 907.97 11,007 131.2% 423,000 172,601 0 38,775 41,424 2,649 106.8% 103.8% 11.4S East Pond 42,316 17,312 40.9% 0 19,254 0 25,004 2,084 0 NA 0 NA -2,084 0.0% 5,750 0 0 527 0 (527) 0.0% 12S Central 550,898 159,598 29.0% 0 0 0 391,300 32,608 150,233 100.0% 40,262 911.07 7,654 123.5% 391,300 150,233 0 35,869 36,056 187 100.5% 11oS Offsite to east pond 35,675 35,675 100.0% 0 0 0 0 0 0 NA 0 NA 0 0.0% 0 0 0 0 0 0 0.0% 16oS East Offsite Imp. 4,669 0 0.0% 0 0 1,079 4,669 389 0 NA 0 NA -389 0.0% 3,590 0 0 329 0 (329) 0.0% Lake Susan Totals 1,741,678 397,705 22.8%0 19,254 1,079 1,343,973 111,998 514,049 137,765 25,767 123.0%1,323,640 514,049 0 121,334 123,372 2,038 101.7% (39.983) (9.130) 21S Direct to 21P 228,234 190,734 83.6% 0 0 0 37,500 3,125 37,120 100.0% 9,948 894.00 6,823 318.3% 37,500 0 37,120 3,438 8,909 5,471 259.2% 22S Direct to Wetland 6 41,671 41,671 100.0% 0 0 0 0 0 0 NA 0 NA 0 0.0% 0 0 0 0 0 0 NA 22oS From Lyman 10,548 10,548 100.0% 0 0 0 0 0 0 NA 0 NA 0 0.0% 0 0 0 0 0 0 NA 24S Northwest 59,105 18,089 30.6% 0 0 0 41,016 3,418 11,000 100.0% 2,948 915.77 -470 86.2% 41,016 11,000 0 3,760 2,640 (1,120) 70.2% 25S West - North 202,586 111,088 54.8% 0 0 0 91,498 7,625 15,560 100.0% 4,170 915.67 -3,455 54.7% 120.5% 91,498 15,560 0 8,387 3,734 (4,653) 44.5% 98.1% 28S Avienda Pkwy - NW 121,658 41,364 34.0% 0 0 15,180 80,294 6,691 30,906 100.0% 8,283 912.77 1,592 123.8% 65,114 30,906 0 5,969 7,417 1,449 124.3% 29oS North Offsite 1,162 0 0 0 539 1,162 97 0 NA 0 NA -97 0.0% 623 0 0 57 0 (57) 0.0% NW Totals 664,964 413,494 62.2%0 0 15,719 251,470 20,956 94,586 25,349 4,393 121.0%235,751 57,466 37,120 21,611 22,701 1,090 105.0% (15.265) (9.493) 31S West - Central 32,839 25,339 77.2% 0 0 0 7,500 625 2,441 100.0% 654 925.60 29 104.7% 7,500 2,441 0 688 586 (102) 85.2% 33S Direct to Wetland 3 78,153 48,788 62.4% 0 29,365 0 29,365 2,447 0 NA 0 NA -2,447 0.0% 0 0 0 0 0 0 NA 33oS Offsite West - North 115,865 83,145 71.8% 0 12,720 0 32,720 2,727 0 NA 0 NA -2,727 0.0% 20,000 0 0 1,833 0 (1,833) NA 34S West Woods 105,546 105,546 100.0% 0 0 0 0 0 0 NA 0 NA 0 0.0% 0 0 0 0 0 0 NA 34oS Offsite to West South 32,710 30,010 91.7% 0 0 0 2,700 225 0 NA 0 NA -225 0.0% 2,700 0 0 248 0 (248) NA 34dS Offsite West Direct 25,470 20,380 80.0% 0 0 2,681 5,090 424 0 NA 0 NA -424 0.0% 2,409 0 0 221 0 (221) 0.0% 35S Southwest 165,092 165,092 100.0% 0 0 0 0 0 0 NA 0 NA 0 0.0% 0 0 0 0 0 0 NA 36oS Southwest Offsite Imp. 1,628 0 0.0% 0 0 687 1,628 136 0 NA 0 NA -136 0.0% 941 0 0 86 0 (86) 0.0% SW Totals 557,303 478,300 85.8%0 42,085 3,368 79,003 6,584 2,441 654 -5,929 9.9%33,550 2,441 0 3,075 586 -2,490 19.0% 40.1S South - East 163,468 29,976 18.3% 0 0 0 133,492 11,124 51,048 100.0% 13,681 896.67 2,557 123.0% 133,492 51,048 0 12,237 12,252 15 100.1% 40.2S South - Central 200,567 47,748 23.8% 0 0 0 152,819 12,735 94,313 100.0% 25,276 897.97 12,541 198.5% 152,819 94,313 0 14,008 22,635 8,627 161.6% 40.3S South - West 228,145 69,464 30.4% 0 0 0 158,681 13,223 60,232 100.0% 16,142 900.47 2,919 122.1% 158,681 60,232 0 14,546 14,456 (90) 99.4% 41.1S South - East 69,984 10,289 14.7% 0 0 0 59,695 4,975 45,024 100.0% 12,066 890.97 7,092 242.6% 59,695 45,024 0 5,472 10,806 5,334 197.5% 41.2S South - Central 156,419 31,015 19.8% 0 0 0 125,404 10,450 16,787 100.0% 4,499 884.47 -5,951 43.1% 125,404 16,787 0 11,495 4,029 (7,466) 35.0% 41.3S South - West 29,884 1,850 6.2% 0 0 0 28,034 2,336 22,024 100.0% 5,902 892.72 3,566 252.7% 28,034 22,024 0 2,570 5,286 2,716 205.7% 42.1S South 41,871 41,871 100.0% 0 0 0 0 0 0 NA 0 NA 0 0.0% 0 0 0 0 0 0 NA 42.2S Southeast 24,525 24,525 100.0% 0 0 0 0 0 0 NA 0 NA 0 0.0% 0 0 0 0 0 0 NA 43.1S East Woods 140,350 140,350 100.0% 0 0 0 0 0 0 NA 0 NA 0 0.0% 0 0 0 0 0 0 NA 43.2S Northeast Woods 81,109 81,109 100.0% 0 0 0 0 0 0 NA 0 NA 0 0.0% 0 0 0 0 0 0 NA 44S North Woods 441,314 441,314 100.0% 0 0 0 0 0 0 NA 0 NA 0 0.0% 0 0 0 0 0 0 NA 45S Central - West 206,303 47,303 22.9% 0 0 0 159,000 13,250 0 NA 0 NA -13,250 0.0% 159,000 0 0 14,575 0 (14,575) 0.0% 46S South Townhomes 97,082 78,057 80.4% 0 0 0 19,025 1,585 1,512 100.0% 405 890.75 -1,180 25.6% 19,025 1,512 0 1,744 363 (1,381) 20.8% 47S Bluff Creek Blvd - West 99,970 19,123 19.1% 0 0 19,030 80,847 6,737 107,300 100.0% 28,756 911.24 22,019 426.8% 143.9% 61,817 107,300 5,667 25,752 20,085 454.5% 127.2% 48S Bluff Creek Blvd - East 149,890 27,966 18.7% 0 0 27,861 121,924 10,160 52,085 100.0% 13,959 898.79 3,798 137.4% 94,063 52,085 8,622 12,500 3,878 145.0% 48.1S Direct to 48P (2) 93,721 29,956 32.0% 0 0 0 63,765 5,314 24,429 100.0% 6,547 898.79 1,233 123.2% 63,765 24,429 5,845 5,863 18 100.3% South Totals 2,224,602 1,121,916 50.4%0 0 46,891 1,102,686 91,891 474,754 127,234 35,344 138.5%1,055,795 474,754 0 96,781 113,941 17,160 117.7% Bluff Creek Totals 3,446,869 2,013,710 58.4%0 42,085 65,978 1,433,159 119,430 571,781 153,237 33,807 128.3%1,325,096 534,661 37,120 121,467 137,227 15,760 113.0% Total Site (Ultimate)5,188,547 2,411,415 46.5%0 61,339 67,057 2,777,132 231,428 1,085,830 291,002 59,575 125.7%2,648,736 1,048,710 37,120 242,801 260,599 17,798 107.3% 119.11 63.75 24.93 60.81 24.08 Table 18 - INFILTRATION CALCULATIONS - ULTIMATE Riley Purgatory Bluff Creek Watershed District PermitMPCA - NPDES Permit Landform®, SensiblyGreen® and Site to Finish® are registered service marks of Landform Professional Services, LLC. L A N D F O R M 1 DATE 05/04/23 PROJECT NAME Avienda PROJECT NUMBER SCD14001.LEV PROJECT LOCATION Chanhassen, MN Current BY CNC ID Name Total Area (sf) Green Space Including Trails & Walks (sf) % Green Space Water Area (sf) Walks or Trails Area (sf) Impervious Area For Abstraction (sf) Required (1.1-inch) Abstraction Volume (cf) Provided Abstraction Volume per MIDS (cf) Excess or (Shortage) of Abstraction (cf) % of Required Abstraction 1S North East 1,266,680 1,266,680 100.0% 37,075 0 0 0 11S East 233,115 233,115 100.0% 12,200 0 0 0 13S Rowhomes 251,740 78,550 31.2% 0 6,585 173,190 15,876 Lake Susan Totals 1,499,795 1,499,795 100.0% 49,275 6,585 173,190 15,876 4,440 -11,436 28.0% acreage 34.431 34.431 1.131 3.976 13.1S RH Front Yards - N 19,930 17,850 89.6% 0 3,055 2,080 191 (29oS) North Offsite Imp. 5,467 4,076 74.6% 0 506 1,391 128 21S Northwest 283,295 264,275 93.3% 0 0 19,020 1,744 25S West-North 199,050 81,685 41.0% 0 0 117,365 10,758 28S Avienda Pkwy - NW 227,645 162,665 71.5% 0 21,540 64,980 5,957 NW Totals 735,387 530,551 72.1% 0 25,101 204,836 18,777 14,996 -3,781 79.9% acreage 16.882 12.180 0.000 4.702 (16oS) East Offsite Imp. 5,069 1,184 23.4% 0 541 3,885 356 42S South Fringes 30,830 30,830 100.0% 0 0 0 0 48S Bluff Creek Blvd - East 166,315 71,365 42.9% 0 23,466 94,950 8,704 54S South-East 266,110 266,110 100.0% 11,945 0 0 0 55S Dir. to Bluff Ck.- E. Basin 167,245 167,245 100.0% 0 0 0 0 SE Totals 635,569 536,734 84.4% 11,945 24,007 98,835 9,060 0 -9,060 0.0% acreage 14.591 12.322 0.274 2.269 40.4S South Villa's Drive 63,540 29,410 46.3% 0 0 34,130 3,129 41.3S South-West 157,310 157,310 100.0% 8,290 0 0 0 46S South Villas 120,630 101,765 84.4% 0 0 18,865 1,729 52S South-Center 292,770 292,770 100.0% 0 0 0 0 So-W Totals 413,400 581,255 140.6% 8,290 0 52,995 4,858 4,859 1 100.0% acreage 9.490 13.344 0.190 1.217 13.2S RH - Front Yards - S 21,220 20,580 97.0% 0 940 640 59 47S Bluff Creek Blvd - West 103,380 52,305 50.6% 0 19,940 51,075 4,682 Wetland 4 Totals 124,600 72,885 58.5% 0 20,880 51,715 4,741 0 -4,741 0.0% acreage 2.860 1.673 0.000 1.187 31S West-Central 34,755 21,275 61.2% 0 0 13,480 1,236 33S Direct to Wetland 3 (onsite) 3,055 1,470 48.1% 0 0 1,585 145 Wetland 3 Totals 37,810 22,745 60.2% 0 0 15,065 1,381 497 -884 36.0% acreage 0.868 0.522 0.000 0.346 34dS Offsite West Direct (ROW) 11,410 5,718 50.1% 0 3,641 5,692 522 West Offsite Totals 11,410 5,718 50.1% 0 3,641 5,692 522 0 -522 0.0% acreage 0.262 0.131 0.000 0.131 Bluff Creek Totals 1,958,176 1,749,888 89.4%20,235 73,629 429,138 39,338 20,352 -18,986 51.7% Total Site 3,457,971 3,249,683 94.0% 69,510 80,214 602,328 55,213 24,792 -30,421 44.9% 79.384 74.602 1.596 1.841 13.828 1/2 Rate:27,607 24,792 -2,815 Table 19 - ABSTRACTION CALCULATIONS: PHASES 1-3 Landform®, SensiblyGreen® and Site to Finish® are registered service marks of Landform Professional Services, LLC. L A N D F O R M 1 DATE 04/22/20 PROJECT NAME AVIENDA PROJECT NUMBER SCD14001.LEV PROJECT LOCATION Chanhassen, MN BY CNC Wetland I.D. Average Buffer Width Required (ft.) Resultant Buffer Area Required (s.f.) Provided Buffer Area (s.f.) Excess Buffer Area Provided (s.f.) 3 40 27,352 27,856 504 4 40 19,421 19,421 0 6 40 21,854 21,946 92 M09 40 13,078 14,269 1,191 Table 20 - WETLAND BUFFER AVERAGES Landform®, SensiblyGreen® and Site to Finish® are registered service marks of Landform Professional Services, LLC. L A N D F O R M 1 DATE 03/22/22 PROJECT NAME Avienda PROJECT NUMBER SCD14001.LEV PROJECT LOCATION Chanhassen, MN PREPARED BY CNC Impervious Tributary Area (ac) Dead Storage Req'd. (1800 cf / ac of Trib. Imp.) (cf) Dead Storage Provided (cf)Pond Depth (ft) Minimum Water Quality Volume from 1-inch over Imp. Area (cf) Provided Water Quality Volume (Flood Pool Volume) >= 1- inch of Imp. Area (cf) Pond Surface Area (ac) Allowed Max. WQV Disch. Rate (5.66 cfs/acre of pond surface) (cfs) Provided Peak WQV Discharge Rate (cfs) Wet Extended Detention or Multi-Cell Sediment Forebay at all Major Inflows Minimum Water Quality Volume 1.5-inch of Imp. Area (cf) Provided Water Quality Volume (Flood Pool Volume) >= 1.5- inch of Imp. Area (cf) Resultant Pond Design Level 1P & 11.4P 0.000 0 94,679 3 & 3 5:1 0 179,816 1.131 6.40 0.83 Both Yes 0 179,816 3 41.3P 1.396 2,513 2,516* 4.6 3:1 5,067 119,396 0.190 1.08 1.02 Wet Extended Yes 7,601 119,396 3 54P 2.242 4,036 29,866 4 1:1 8,138 107,755 0.274 1.55 0.46 Wet Extended No 12,208 107,755 2 *Note: Pond 41.3P has a total of 25,616 c.f. of storage, 23,100 c.f. of which is used for irrigation reuse leaving 2,516 c.f. for the Pond Dead Storage. TABLE 21 - POND DESIGN LEVEL SUMMARY Design Level 1 Data Design Level 2 Data Design Level 3 Data Pond Flow Path Length to Width Ratio (DL1= 10:1 max., DL2= 1:1 to 3:1, DL3= 3:1 to 10:1)Pond I.D. Landform®, SensiblyGreen® and Site to Finish® are registered service marks of Landform Professional Services, LLC.1 Avienda 5/5/2023 Stormwater Management Plan – Phase 2 ii ii APPENDIX G MIDS Output Stormwater Reuse Spreadsheets Project Information Calculator Version:Version 4: July 2020 Project Name:Avienda Rowhomes (Phase 3) -Lake Susan Tributary Area User Name / Company Name:C. Call / Landform Date:5/5/2023 Project Description:Lake Susan MIDS model for Avienda Rowhomes. Construction Permit?:Yes Site Information Retention Requirement (inches):1.1 Site's Zip Code:55317 Annual Rainfall (inches):29.9 Phosphorus EMC (mg/l):0.3 TSS EMC (mg/l):54.5 Total Site Area Land Cover A Soils (acres) B Soils (acres) C Soils (acres) D Soils (acres) Total (acres) Forest/Open Space -Undisturbed, protected forest/open space or reforested land 0 Managed Turf -disturbed, graded for yards or other turf to be mowed/managed 35.107 35.107 Impervious Area (acres)3.976 Total Area (acres)39.083 Site Areas Routed to BMPs Land Cover A Soils (acres) B Soils (acres) C Soils (acres) D Soils (acres) Total (acres) Forest/Open Space -Undisturbed, protected forest/open space or reforested land 0 Managed Turf -disturbed, graded for yards or other turf to be mowed/managed 35.107 35.107 Impervious Area (acres)3.976 Total Area (acres)39.083 Summary Information Performance Goal Requirement Performance goal volume retention requirement:15876 ft3 Volume removed by BMPs towards performance goal:4442 ft3 Percent volume removed towards performance goal 28 % Annual Volume and Pollutant Load Reductions Post development annual runoff volume 28.1522 acre-ft Annual runoff volume removed by BMPs:3.8809 acre-ft Percent annual runoff volume removed:14 % Post development annual particulate P load:17.2292 lbs Annual particulate P removed by BMPs:11.546 lbs Post development annual dissolved P load:5.743 lbs Annual dissolved P removed by BMPs:3.475 lbs Total P removed by BMPs 15.021 lbs Percent annual total phosphorus removed:65 % Post development annual TSS load:4173.3 lbs Annual TSS removed by BMPs:3813.5 lbs Percent annual TSS removed:91 % BMP Summary Performance Goal Summary BMP Name BMP Volume Capacity (ft3) Volume Recieved (ft3) Volume Retained (ft3) Volume Outflow (ft3) Percent Retained (%) 13P -Harvest and re-use/Cistern 4442 15876 4442 11434 28 1P & 11.4P -Constructed stormwater pond 0 11434 0 11434 0 Annual Volume Summary BMP Name Volume From Direct Watershed (acre-ft) Volume From Upstream BMPs (acre-ft) Volume Retained (acre-ft) Volume outflow (acre-ft) Percent Retained (%) 13P -Harvest and re-use/Cistern 9.4812 0 3.8809 5.6003 41 1P & 11.4P -Constructed stormwater pond 18.6711 5.6003 0 24.2714 0 Particulate Phosphorus Summary BMP Name Load From Direct Watershed (lbs) Load From Upstream BMPs (lbs) Load Retained (lbs) Outflow Load (lbs) Percent Retained (%) 13P -Harvest and re-use/Cistern 0 0 1.7417 2.5135 0 1P & 11.4P -Constructed stormwater pond 0 2.5135 9.8038 1.0893 390 Dissolved Phosphorus Summary BMP Name Load From Direct Watershed (lbs) Load From Upstream BMPs (lbs) Load Retained (lbs) Outflow Load (lbs) Percent Retained (%) 13P -Harvest and re-use/Cistern 0 0 1.4251 2.0564 0 1P & 11.4P -Constructed stormwater pond 0 2.0564 2.0499 6.8625 100 Total Phosphorus Summary BMP Name Load From Direct Watershed (lbs) Load From Upstream BMPs (lbs) Load Retained (lbs) Outflow Load (lbs) Percent Retained (%) 13P -Harvest and re-use/Cistern 0 0 3.1668 4.5699 0 1P & 11.4P -Constructed stormwater pond 0 4.5699 11.8537 7.9518 245 TSS Summary BMP Name Load From Direct Watershed (lbs) Load From Upstream BMPs (lbs) Load Retained (lbs) Outflow Load (lbs) Percent Retained (%) 13P -Harvest and re-use/Cistern 1405.49 0 575.3 830.19 41 1P & 11.4P -Constructed stormwater pond 2767.8 830.19 3238.19 359.8 90 BMP Schematic DATE 5/4/2023 PROJECT NAME Avienda PROJECT NUMBER SCD14001.LEV PROJECT LOCATION Chanhassen, MN PREPARED BY CNC Subwatershed Volume Reduction Goal (cf) Voume Reduction Achieved (cf) Percentage of Goal From Watershed Removed by BMPS From Watershed Removed by BMPS Total Load Total Removed by BMPs NW - Wetland 6 10.3094 18,775 14,996 80% 10.309 9.176 3.436 2.154 13.745 11.330 82.4%2,497.2 2,497.2 100.0% SE-No 48P 11.742 9,060 0 0% 7.186 5.832 2.395 0.185 9.581 6.017 62.8% 1,740.6 1,412.7 81.2% So-W 10.276 4,859 4,859 100% 6.289 6.228 2.096 1.923 8.385 8.151 97.2% 1,523.3 1,508.7 99.0% Wetland 4 3.236 4,684 0 0% 1.980 1.695 0.660 0.000 2.640 1.695 64.2%479.7 458.8 95.6% Wetland 3 0.8788 1,382 497 36% 0.630 0.609 0.210 0.086 0.840 0.695 82.7%152.6 150.6 98.7% West Off-Site 0.353 523 0 0% 0.216 0.000 0.072 0.000 0.288 0.000 0.0% 52.3 0.0 0.0% Totals 36.7952 39,283 20,352 51.8%26.611 23.540 8.869 4.348 35.480 27.888 78.6%6,445.7 6,028.0 93.5% MNDOT Wetland 9 25.254 18603 4859 26% 15.4554 13.755 5.151 2.108 20.6064 15.863 77.0%3743.59 3380.18 90.3% Sum of yellow highlighted cells above 50% of Goal: 19,642 20,352 104% of portion req'd. TSS - Post Development - Annual Particulate Load Disolved Load Total Load (lbs) Total Percent Removed Load from Watershed (lbs) TSS Removed by BMPs (lbs) Total Percent Removed MIDS SUMMARY OF RESULTS - BLUFF CREEK Total Annual Runoff Volume (af) Volume Reduction Phosphorus - Post Development - Annual Phases 1-3 Landform®, SensiblyGreen® and Site to Finish® are registered service marks of Landform Professional Services, LLC.1 DATE 5/5/2023 PROJECT NAME Avienda PROJECT NUMBER SCD14001.LEV PROJECT LOCATION Chanhassen, MN PREPARED BY CNC Subwatershed Volume Reduction Goal (cf) Voume Reduction Achieved (cf) Percentage of Goal From Watershed Removed by BMPS From Watershed Removed by BMPS Total Load Total Removed by BMPs NW - Wetland 6 7.621 18,775 14,996 80% 10.309 9.176 3.436 2.154 13.745 11.330 82.4%2,497.2 2,497.2 100.0% SE-No 48P 11.742 9,060 0 0% 7.186 5.832 2.395 0.185 9.581 6.017 62.8% 1,740.6 1,412.7 81.2% So-W 1.135 4,859 4,859 100% 6.289 6.228 2.096 1.923 8.385 8.151 97.2% 1,523.3 1,508.7 99.0% Wetland 4 3.236 4,684 0 0% 1.980 1.695 0.660 0.000 2.640 1.695 64.2%479.7 458.8 95.6% Wetland 3 0.8788 1,382 497 36% 0.630 0.609 0.210 0.086 0.840 0.695 82.7%152.6 150.6 98.7% West Off-Site 0.353 523 0 0% 0.216 0.000 0.072 0.000 0.288 0.000 0.0% 52.3 0.0 0.0% Totals 24.9658 39,283 20,352 51.8%26.611 23.540 8.869 4.348 35.480 27.888 78.6%6,445.7 6,028.0 93.5% MNDOT Wetland 9 16.113 18603 4859 26% 15.4554 13.755 5.151 2.108 20.6064 15.863 77.0%3743.59 3380.18 90.3% Sum of yellow highlighted cells above 50% of Goal: 19,642 20,352 104% of portion req'd. MIDS SUMMARY OF RESULTS - BLUFF CREEK Total Annual Runoff Volume (af) Volume Reduction Phosphorus - Post Development - Annual Phases 1-3 TSS - Post Development - Annual Particulate Load Disolved Load Total Load (lbs) Total Percent Removed Load from Watershed (lbs) TSS Removed by BMPs (lbs) Total Percent Removed Landform®, SensiblyGreen® and Site to Finish® are registered service marks of Landform Professional Services, LLC.1 Project Information Calculator Version: Version 4: July 2020 Project Name: Avienda Bluff Creek SE MIDS User Name / Company Name: Landform Date: 2022-04-19 Project Description: Tributary area to the Southeast of Bluff Creek watershed. Construction Permit?: Yes Site Information Retention Requirement (inches):1.1 Site's Zip Code: 55317 Annual Rainfall (inches):29.9 Phosphorus EMC (mg/l): 0.3 TSS EMC (mg/l):54.5 Total Site Area Land Cover A Soils (acres) B Soils (acres) C Soils (acres) D Soils (acres) Total (acres) Forest/Open Space - Undisturbed, protected forest/open space or reforested land 0 Managed Turf - disturbed, graded for yards or other turf to be mowed/managed 12.322 12.322 Impervious Area (acres) 2.269 Total Area (acres) 14.591 Site Areas Routed to BMPs Land Cover A Soils (acres) B Soils (acres) C Soils (acres) D Soils (acres) Total (acres) Forest/Open Space - Undisturbed, protected forest/open space or reforested land 0 Managed Turf - disturbed, graded for yards or other turf to be mowed/managed 11.614 11.614 Impervious Area (acres) 2.269 Total Area (acres) 13.883 Summary Information Performance Goal Requirement Performance goal volume retention requirement: 9060 ft3 Volume removed by BMPs towards performance goal: ft³ Percent volume removed towards performance goal % Annual Volume and Pollutant Load Reductions Post development annual runoff volume 11.7418 acre-ft Annual runoff volume removed by BMPs: 0 acre-ft Percent annual runoff volume removed: 0 % Post development annual particulate P load: 7.186 lbs Annual particulate P removed by BMPs: 5.832 lbs Post development annual dissolved P load: 2.395 lbs Annual dissolved P removed by BMPs: 0.185 lbs Total P removed by BMPs 6.017 lbs Percent annual total phosphorus removed: 63 % Post development annual TSS load: 1740.6 lbs Annual TSS removed by BMPs: 1412.7 lbs Percent annual TSS removed: 81 % BMP Summary Performance Goal Summar y BMP Name BMP Volume Capacity (ft3) Volume Recieved (ft3) Volume Retained (ft3) Volume Outflow (ft3) Percent Retained (%) 54P - Constructed stormwater pond 0 9060 0 9060 0 Annual Volume Summary BMP Name Volume From Direct Watershed (acre-ft) Volume From Upstream BMPs (acre-ft) Volume Retained (acre-ft) Volume outflow (acre-ft) Percent Retained (%) 54P - Constructed stormwater pond 11.3449 0 0 11.3449 0 Particulate Phosphorus Summary BMP Name Load From Direct Watershed (lbs) Load From Upstream BMPs (lbs) Load Retained (lbs) Outflow Load (lbs) Percent Retained (%) 54P - Constructed stormwater pond 6.9431 0 5.8322 1.1109 84 Dissolved Phosphorus Summary BMP Name Load From Direct Watershed (lbs) Load From Upstream BMPs (lbs) Load Retained (lbs) Outflow Load (lbs) Percent Retained (%) 54P - Constructed stormwater pond 2.3144 0 0.1852 2.1292 8 Total Phosphorus Summary BMP Name Load From Direct Watershed (lbs) Load From Upstream BMPs (lbs) Load Retained (lbs) Outflow Load (lbs) Percent Retained (%) 54P - Constructed stormwater pond 9.2575 0 6.0174 3.2401 46 TSS Summary BMP Name Load From Direct Watershed (lbs) Load From Upstream BMPs (lbs) Load Retained (lbs) Outflow Load (lbs) Percent Retained (%) 54P - Constructed stormwater pond 1681.77 0 1412.69 269.08 84 BMP Schematic Project Information Calculator Version:Version 4: July 2020 Project Name:Avienda -Bluff Creek Southwest Watershed -Phase 2 User Name / Company Name:Call / Landform Date:4/19/2023 Project Description:Avienda Phase 2 southwest drainage to Bluff Creek excluding that to Wetland 4. Bl Cr So-W Ph 3 MIDS.xlsx Construction Permit?:Yes Site Information Retention Requirement (inches):1.1 Site's Zip Code:55316 Annual Rainfall (inches):30.5 Phosphorus EMC (mg/l):0.3 TSS EMC (mg/l):54.5 Total Site Area Land Cover A Soils (acres) B Soils (acres) C Soils (acres) D Soils (acres) Total (acres) Forest/Open Space -Undisturbed, protected forest/open space or reforested land 0 Managed Turf -disturbed, graded for yards or other turf to be mowed/managed 13.344 13.344 Impervious Area (acres)1.217 Total Area (acres)14.561 Site Areas Routed to BMPs Land Cover A Soils (acres) B Soils (acres) C Soils (acres) D Soils (acres) Total (acres) Forest/Open Space -Undisturbed, protected forest/open space or reforested land 0 Managed Turf -disturbed, graded for yards or other turf to be mowed/managed 13.344 13.344 Impervious Area (acres)1.217 Total Area (acres)14.561 Summary Information Performance Goal Requirement Performance goal volume retention requirement:4859 ft3 Volume removed by BMPs towards performance goal:4859 ft3 Percent volume removed towards performance goal 100 % Annual Volume and Pollutant Load Reductions Post development annual runoff volume 10.2758 acre-ft Annual runoff volume removed by BMPs:9.1411 acre-ft Percent annual runoff volume removed:89 % Post development annual particulate P load:6.2888 lbs Annual particulate P removed by BMPs:6.228 lbs Post development annual dissolved P load:2.096 lbs Annual dissolved P removed by BMPs:1.923 lbs Total P removed by BMPs 8.151 lbs Percent annual total phosphorus removed:97 % Post development annual TSS load:1523.3 lbs Annual TSS removed by BMPs:1508.7 lbs Percent annual TSS removed:99 % BMP Summary Performance Goal Summary BMP Name BMP Volume Capacity (ft3) Volume Recieved (ft3) Volume Retained (ft3) Volume Outflow (ft3) Percent Retained (%) 46P -Bioretention basin (with underdrain)968 1729 968 761 56 1 -Harvest and re-use/Cistern 3977 3891 3891 0 100 41.3P -Constructed stormwater pond 0 3891 0 3891 0 Annual Volume Summary BMP Name Volume From Direct Watershed (acre-ft) Volume From Upstream BMPs (acre-ft) Volume Retained (acre-ft) Volume outflow (acre-ft) Percent Retained (%) 46P -Bioretention basin (with underdrain)2.2769 0 0.4525 1.8244 20 1 -Harvest and re-use/Cistern 0 9.8234 8.6887 1.1347 88 41.3P -Constructed stormwater pond 7.9989 1.8244 0 9.8233 0 Particulate Phosphorus Summary BMP Name Load From Direct Watershed (lbs) Load From Upstream BMPs (lbs) Load Retained (lbs) Outflow Load (lbs) Percent Retained (%) 46P -Bioretention basin (with underdrain)1.3934 0 1.0765 0.3169 77 1 -Harvest and re-use/Cistern 0 0.5212 0.461 0.0602 88 41.3P -Constructed stormwater pond 4.8953 0.3169 4.691 0.5212 90 Dissolved Phosphorus Summary BMP Name Load From Direct Watershed (lbs) Load From Upstream BMPs (lbs) Load Retained (lbs) Outflow Load (lbs) Percent Retained (%) 46P -Bioretention basin (with underdrain)0.4645 0 0.153364 0.3111 33 1 -Harvest and re-use/Cistern 0 1.496 1.3232 0.1728 88 41.3P -Constructed stormwater pond 1.6318 0.3111 0.4469 1.496 23 Total Phosphorus Summary BMP Name Load From Direct Watershed (lbs) Load From Upstream BMPs (lbs) Load Retained (lbs) Outflow Load (lbs) Percent Retained (%) 46P -Bioretention basin (with underdrain)1.8579 0 1.229864 0.628 55 1 -Harvest and re-use/Cistern 0 2.0172 1.7842 0.233 88 41.3P -Constructed stormwater pond 6.5271 0.628 5.1379 2.0172 56 TSS Summary BMP Name Load From Direct Watershed (lbs) Load From Upstream BMPs (lbs) Load Retained (lbs) Outflow Load (lbs) Percent Retained (%) 46P -Bioretention basin (with underdrain)337.52 0 260.76 76.76 77 1 -Harvest and re-use/Cistern 0 126.25 111.67 14.58 88 41.3P -Constructed stormwater pond 1185.76 76.76 1136.27 126.25 90 BMP Schematic Project Information Calculator Version: Version 4: July 2020 Project Name: Avienda - Bluff Creek West Off-Site User Name / Company Name: Landform Date: 2022-02-14 Project Description: Proposed West Off-Site tributary area to Bluff Creek. Construction Permit?: No Site Information Retention Requirement (inches):1.1 Site's Zip Code: 55317 Annual Rainfall (inches):29.9 Phosphorus EMC (mg/l): 0.3 TSS EMC (mg/l):54.5 Total Site Area Land Cover A Soils (acres) B Soils (acres) C Soils (acres) D Soils (acres) Total (acres) Forest/Open Space - Undisturbed, protected forest/open space or reforested land 0 Managed Turf - disturbed, graded for yards or other turf to be mowed/managed 0.131 0.131 Impervious Area (acres) 0.131 Total Area (acres) 0.262 Site Areas Routed to BMPs Land Cover A Soils (acres) B Soils (acres) C Soils (acres) D Soils (acres) Total (acres) Forest/Open Space - Undisturbed, protected forest/open space or reforested land 0 Managed Turf - disturbed, graded for yards or other turf to be mowed/managed 0.131 0.131 Impervious Area (acres) 0.131 Total Area (acres) 0.262 Summary Information Performance Goal Requirement Performance goal volume retention requirement: 523 ft3 Volume removed by BMPs towards performance goal: ft³ Percent volume removed towards performance goal % Annual Volume and Pollutant Load Reductions Post development annual runoff volume 0.3525 acre-ft Annual runoff volume removed by BMPs: 0 acre-ft Percent annual runoff volume removed: 0 % Post development annual particulate P load: 0.2157 lbs Annual particulate P removed by BMPs: 0 lbs Post development annual dissolved P load: 0.072 lbs Annual dissolved P removed by BMPs: 0 lbs Total P removed by BMPs 0 lbs Percent annual total phosphorus removed: 0 % Post development annual TSS load: 52.3 lbs Annual TSS removed by BMPs: 0 lbs Percent annual TSS removed: 0 % BMP Summary Performance Goal Summar y BMP Name BMP Volume Capacity (ft3) Volume Recieved (ft3) Volume Retained (ft3) Volume Outflow (ft3) Percent Retained (%) 34dS - Off-Site West Drainage 0 523 0 523 0 Annual Volume Summary BMP Name Volume From Direct Watershed (acre-ft) Volume From Upstream BMPs (acre-ft) Volume Retained (acre-ft) Volume outflow (acre-ft) Percent Retained (%) 34dS - Off-Site West Drainage 0.3525 0 0 0.3525 0 Particulate Phosphorus Summary BMP Name Load From Direct Watershed (lbs) Load From Upstream BMPs (lbs) Load Retained (lbs) Outflow Load (lbs) Percent Retained (%) 34dS - Off-Site West Drainage 0.2157 0 0 0.2157 0 Dissolved Phosphorus Summary BMP Name Load From Direct Watershed (lbs) Load From Upstream BMPs (lbs) Load Retained (lbs) Outflow Load (lbs) Percent Retained (%) 34dS - Off-Site West Drainage 0.0719 0 0 0.0719 0 Total Phosphorus Summary BMP Name Load From Direct Watershed (lbs) Load From Upstream BMPs (lbs) Load Retained (lbs) Outflow Load (lbs) Percent Retained (%) 34dS - Off-Site West Drainage 0.2876 0 0 0.2876 0 TSS Summary BMP Name Load From Direct Watershed (lbs) Load From Upstream BMPs (lbs) Load Retained (lbs) Outflow Load (lbs) Percent Retained (%) 34dS - Off-Site West Drainage 52.26 0 0 52.26 0 BMP Schematic Project Information Calculator Version: Version 4: July 2020 Project Name: Avienda - Bluff Creek Wetland 3 User Name / Company Name: Landform Date: 2022-02-14 Project Description: Proposed Wetland 3 tributary area (part of Bluff Creek). Construction Permit?: No Site Information Retention Requirement (inches):1.1 Site's Zip Code: 55317 Annual Rainfall (inches):29.9 Phosphorus EMC (mg/l): 0.3 TSS EMC (mg/l):54.5 Total Site Area Land Cover A Soils (acres) B Soils (acres) C Soils (acres) D Soils (acres) Total (acres) Forest/Open Space - Undisturbed, protected forest/open space or reforested land 0 Managed Turf - disturbed, graded for yards or other turf to be mowed/managed 0.522 0.522 Impervious Area (acres) 0.346 Total Area (acres) 0.868 Site Areas Routed to BMPs Land Cover A Soils (acres) B Soils (acres) C Soils (acres) D Soils (acres) Total (acres) Forest/Open Space - Undisturbed, protected forest/open space or reforested land 0 Managed Turf - disturbed, graded for yards or other turf to be mowed/managed 0.522 0.522 Impervious Area (acres) 0.346 Total Area (acres) 0.868 Summary Information Performance Goal Requirement Performance goal volume retention requirement: 1382 ft3 Volume removed by BMPs towards performance goal: 497 ft³ Percent volume removed towards performance goal 36 % Annual Volume and Pollutant Load Reductions Post development annual runoff volume 1.0298 acre-ft Annual runoff volume removed by BMPs: 0.1507 acre-ft Percent annual runoff volume removed: 15 % Post development annual particulate P load: 0.6302 lbs Annual particulate P removed by BMPs: 0.609 lbs Post development annual dissolved P load: 0.21 lbs Annual dissolved P removed by BMPs: 0.086 lbs Total P removed by BMPs 0.695 lbs Percent annual total phosphorus removed: 83 % Post development annual TSS load: 152.6 lbs Annual TSS removed by BMPs: 150.6 lbs Percent annual TSS removed: 99 % BMP Summary Performance Goal Summar y BMP Name BMP Volume Capacity (ft3) Volume Recieved (ft3) Volume Retained (ft3) Volume Outflow (ft3) Percent Retained (%) 31P - Bioretention basin (with underdrain)214 1099 214 884 19 1 - Stormwater disconnection (Impervious 283 1238 283 955 23 31j - Jellyfish Filter 0 884 0 884 0 Annual Volume Summary BMP Name Volume From Direct Watershed (acre-ft) Volume From Upstream BMPs (acre-ft) Volume Retained (acre-ft) Volume outflow (acre-ft) Percent Retained (%) 31P - Bioretention basin (with underdrain)0.0958 0.8321 0.0488 0.8791 5 1 - Stormwater disconnection (Impervious 0.934 0 0.1019 0.8321 11 31j - Jellyfish Filter 0 0.8791 0 0.8791 0 Particulate Phosphorus Summary BMP Name Load From Direct Watershed (lbs) Load From Upstream BMPs (lbs) Load Retained (lbs) Outflow Load (lbs) Percent Retained (%) 31P - Bioretention basin (with underdrain)0.0586 0.5092 0.4602 0.1076 81 1 - Stormwater disconnection (Impervious 0.5716 0 0.0624 0.5092 11 31j - Jellyfish Filter 0 0.1076 0.0861 0.0215 80 Dissolved Phosphorus Summary BMP Name Load From Direct Watershed (lbs) Load From Upstream BMPs (lbs) Load Retained (lbs) Outflow Load (lbs) Percent Retained (%) 31P - Bioretention basin (with underdrain)0.0195 0.1697 0.0458 0.1434 24 1 - Stormwater disconnection (Impervious 0.1905 0 0.0208 0.1697 11 31j - Jellyfish Filter 0 0.1434 0.0191 0.1243 13 Total Phosphorus Summary BMP Name Load From Direct Watershed (lbs) Load From Upstream BMPs (lbs) Load Retained (lbs) Outflow Load (lbs) Percent Retained (%) 31P - Bioretention basin (with underdrain)0.0781 0.6789 0.506 0.251 52 1 - Stormwater disconnection (Impervious 0.7621 0 0.0832 0.6789 11 31j - Jellyfish Filter 0 0.251 0.1052 0.1458 46 TSS Summary BMP Name Load From Direct Watershed (lbs) Load From Upstream BMPs (lbs) Load Retained (lbs) Outflow Load (lbs) Percent Retained (%) 31P - Bioretention basin (with underdrain)14.19 39.47 43.49 10.17 81 1 - Stormwater disconnection (Impervious 138.46 0 98.99 39.47 71 31j - Jellyfish Filter 0 10.17 8.14 2.0300000000 80 BMP Schematic Project Information Calculator Version:Version 4: July 2020 Project Name:Avienda -Bluff Creek Wetland 4 Watershed -Phase 3 User Name / Company Name:Call / Landform Date:5/03/2023 Project Description:Avienda Phase 3 drainage to Wetland 4 -Bluff Creek. Bl Cr WL4 Ph 3 MIDS.xlsx Construction Permit?:Yes Site Information Retention Requirement (inches):1.1 Site's Zip Code:55316 Annual Rainfall (inches):30.5 Phosphorus EMC (mg/l):0.3 TSS EMC (mg/l):54.5 Total Site Area Land Cover A Soils (acres) B Soils (acres) C Soils (acres) D Soils (acres) Total (acres) Forest/Open Space -Undisturbed, protected forest/open space or reforested land 0 Managed Turf -disturbed, graded for yards or other turf to be mowed/managed 1.201 1.201 Impervious Area (acres)1.173 Total Area (acres)2.374 Site Areas Routed to BMPs Land Cover A Soils (acres) B Soils (acres) C Soils (acres) D Soils (acres) Total (acres) Forest/Open Space -Undisturbed, protected forest/open space or reforested land 0 Managed Turf -disturbed, graded for yards or other turf to be mowed/managed 1.201 1.201 Impervious Area (acres)1.173 Total Area (acres)2.374 Summary Information Performance Goal Requirement Performance goal volume retention requirement:4684 ft3 Volume removed by BMPs towards performance goal:ft3 Percent volume removed towards performance goal % Annual Volume and Pollutant Load Reductions Post development annual runoff volume 3.2359 acre-ft Annual runoff volume removed by BMPs:0 acre-ft Percent annual runoff volume removed:0 % Post development annual particulate P load:1.9804 lbs Annual particulate P removed by BMPs:1.695 lbs Post development annual dissolved P load:0.66 lbs Annual dissolved P removed by BMPs:0 lbs Total P removed by BMPs 1.695 lbs Percent annual total phosphorus removed:64 % Post development annual TSS load:479.7 lbs Annual TSS removed by BMPs:458.8 lbs Percent annual TSS removed:96 % BMP Summary Performance Goal Summary BMP Name BMP Volume Capacity (ft3) Volume Recieved (ft3) Volume Retained (ft3) Volume Outflow (ft3) Percent Retained (%) 47P -Sand filter 0 4684 0 4684 0 1 -Jellyfish Filter 0 4684 0 4684 0 Annual Volume Summary BMP Name Volume From Direct Watershed (acre-ft) Volume From Upstream BMPs (acre-ft) Volume Retained (acre-ft) Volume outflow (acre-ft) Percent Retained (%) 47P -Sand filter 3.2359 0 0 3.2359 0 1 -Jellyfish Filter 0 3.2359 0 3.2359 0 Particulate Phosphorus Summary BMP Name Load From Direct Watershed (lbs) Load From Upstream BMPs (lbs) Load Retained (lbs) Outflow Load (lbs) Percent Retained (%) 47P -Sand filter 1.9804 0 0.8563 1.1241 43 1 -Jellyfish Filter 0 1.1241 0.8391 0.285 75 Dissolved Phosphorus Summary BMP Name Load From Direct Watershed (lbs) Load From Upstream BMPs (lbs) Load Retained (lbs) Outflow Load (lbs) Percent Retained (%) 47P -Sand filter 0.6601 0 0 0.6601 0 1 -Jellyfish Filter 0 0.6601 0 0.6601 0 Total Phosphorus Summary BMP Name Load From Direct Watershed (lbs) Load From Upstream BMPs (lbs) Load Retained (lbs) Outflow Load (lbs) Percent Retained (%) 47P -Sand filter 2.6405 0 0.8563 1.7842 22 1 -Jellyfish Filter 0 1.7842 0.8391 0.9451 38 TSS Summary BMP Name Load From Direct Watershed (lbs) Load From Upstream BMPs (lbs) Load Retained (lbs) Outflow Load (lbs) Percent Retained (%) 47P -Sand filter 479.69 0 375.12 104.57 78 1 -Jellyfish Filter 0 104.57 83.66 20.91 80 BMP Schematic Avienda Rowhomes Stormwater Reuse NW 4/14/2023 Airrigation ft 2 Dirrigation in/day Begin/End 5 to 10 month 100% 0.0% 83.8% 13.7% 2.5%% Total Vol Awatershed acres 276,436 0 231,663 37,786 6,986 Vol (ft3/yr) %Imp, connected %100% 0.0% 32.4% 65.1% 2.5%% Total P %Imp, disconnected %3.21 0.00 1.04 2.09 0.08 TP (kg/yr) CNImp, disconnected 100% 0.0% 87.7% 11.3% 1.1%% Total Vol CNpervious 334,792 0 293,461 37,786 3,544 Vol (ft3/yr) CW-TP ppb 100% 0.0% 32.4% 65.1% 2.5%% Total P CW-orthoP ppb 3.89 0.00 1.26 2.53 0.10 TP (kg/yr) Vbasin ft 3 100% 7.3% 68.3% 7.7% 16.8%% Total Vol Vstorage ft 3 490,673 35,587 334,935 37,786 82,364 Vol (ft3/yr) Lbasin/Wbasin 175 by 175 ft 100% 2.7% 25.2% 65.1% 7.0%% Total P Begin/End 1 to 12 month 5.70 0.15 1.44 3.71 0.40 TP (kg/yr) Dbasin ft 100%2.4% 79.9% 10.9% 6.8%% Total Vol Side slope ratio 367,300 11,862 286,687 37,786 30,965 Vol (ft3/yr) Evaporation 1=on; 0=off 100%0.9% 30.0% 65.1% 4.0%% Total P Vbasin, initial ft 3 4.26 0.05 1.24 2.78 0.19 TP (kg/yr) WATERSHED IRRIGATION STORAGE 1 ALL WET DRY AVERAGE Rainfall Year 16.882 23% 80 98 410 5% 33,570 SUMMARY: Annual Basin Dynamics318,488 0.367 INPUTS To Overflow To Irrigation To Evaporation To Sedimentation Change in Storage OUTPUTS From the Watershed Units Stormwater Reuse Calculator, Version 2.0, October 2013 (Contact information: bemmons@eorinc.com or www.eorinc.com) Developed by Emmons & Olivier Resources (EOR) with funding from Mississippi Watershed Management Organization & Minnehaha Creek Watershed District 8. The initial basin volume can be set by the user to account for winter dynamics 9. Model results assume regular maintenance to remove accumulated sediments! User notes: 1. The irrigation and watershed areas can be independent 4. The watershed P concentrations and fractions can be set to site specific data 5. The user must define appropriate basin geometry or model results are invalid 6. The storage volume can be set to maintain any desired minimum pond depth 2. The user must composite the CN for disconnected impervious 3. Turn off evaporation until all basin geometry is entered and valid 100 175,065 33,570 7. An average side slope can be used to account for the design of safety benches 8 3 0 100,000 200,000 300,000 400,000 500,000 600,000 DRY AVERAGE WET ALLVolume (ft3/yr)Overflow Change in Storage Evaporation Irrigation 0.00 1.00 2.00 3.00 4.00 5.00 6.00 DRY AVERAGE WET ALLP (kg/yr)Overflow Change in Storage Sedimentation Irrigation 0.0% 20.0% 40.0% 60.0% 80.0% 100.0% 120.0% DRY AVERAGE WET ALLVolume (% Watershed Flow)Overflow Change in Storage Evaporation Irrigation 0.0% 20.0% 40.0% 60.0% 80.0% 100.0% 120.0% DRY AVERAGE WET ALLP (% Watershed Load)Overflow Change in Storage Sedimentation Irrigation 0 0 0 0 0 1 1 1 1 1 1 0 20,000 40,000 60,000 80,000 100,000 120,000 140,000 160,000 180,000 200,000 1/1 4/11 7/20 10/28 Overflow Volume (cubic feet)Volume in Basin (cubic feet)DRY YEAR (2009) Overflow Volume at Overflow Minimum Volume Basin 0 0 0 0 0 1 1 1 1 1 1 0 20,000 40,000 60,000 80,000 100,000 120,000 140,000 160,000 180,000 200,000 1/1 4/11 7/20 10/28 Overflow Volume (cubic feet)Volume in Basin (cubic feet)AVERAGE YEAR (2011) Overflow Volume at Overflow Minimum Volume Basin 0 2,000 4,000 6,000 8,000 10,000 12,000 0 20,000 40,000 60,000 80,000 100,000 120,000 140,000 160,000 180,000 200,000 1/1 4/11 7/20 10/28 Overflow Volume (cubic feet)Volume in Basin (cubic feet)WET YEAR (2007) Overflow Volume at Overflow Minimum Volume Basin Avienda Rowhomes Stormwater Reuse South-West 4/13/2023 Airrigation ft 2 Dirrigation in/day Begin/End 5 to 10 month 100% 12.5% 81.4% 5.4% 0.7%% Total Vol Awatershed acres 134,661 16,805 109,586 7,279 992 Vol (ft3/yr) %Imp, connected %100% 5.0% 30.5% 62.5% 2.0%% Total P %Imp, disconnected %1.56 0.08 0.48 0.98 0.03 TP (kg/yr) CNImp, disconnected 100% 4.5% 91.3% 4.3% -0.1%% Total Vol CNpervious 169,310 7,581 154,557 7,279 -107 Vol (ft3/yr) CW-TP ppb 100% 1.7% 32.5% 64.1% 1.6%% Total P CW-orthoP ppb 1.97 0.03 0.64 1.26 0.03 TP (kg/yr) Vbasin ft 3 100% 32.9% 61.6% 2.9% 2.6%% Total Vol Vstorage ft 3 251,825 82,931 155,155 7,279 6,461 Vol (ft3/yr) Lbasin/Wbasin 132 by 60 ft 100% 16.9% 25.9% 54.4% 2.8%% Total P Begin/End 1 to 12 month 2.92 0.49 0.76 1.59 0.08 TP (kg/yr) Dbasin ft 100%16.6% 78.1% 4.2% 1.1%% Total Vol Side slope ratio 185,266 35,772 139,766 7,279 2,448 Vol (ft3/yr) Evaporation 1=on; 0=off 100%7.9% 29.7% 60.4% 2.1%% Total P Vbasin, initial ft 3 2.15 0.20 0.62 1.28 0.05 TP (kg/yr) WATERSHED IRRIGATION STORAGE 1 ALL WET DRY AVERAGE Rainfall Year 14.56 10% 80 98 410 0% 18,300 SUMMARY: Annual Basin Dynamics141,034 0.367 INPUTS To Overflow To Irrigation To Evaporation To Sedimentation Change in Storage OUTPUTS From the Watershed Units Stormwater Reuse Calculator, Version 2.0, October 2013 (Contact information: bemmons@eorinc.com or www.eorinc.com) Developed by Emmons & Olivier Resources (EOR) with funding from Mississippi Watershed Management Organization & Minnehaha Creek Watershed District 8. The initial basin volume can be set by the user to account for winter dynamics 9. Model results assume regular maintenance to remove accumulated sediments! User notes: 1. The irrigation and watershed areas can be independent 4. The watershed P concentrations and fractions can be set to site specific data 5. The user must define appropriate basin geometry or model results are invalid 6. The storage volume can be set to maintain any desired minimum pond depth 2. The user must composite the CN for disconnected impervious 3. Turn off evaporation until all basin geometry is entered and valid 100 52,335 17,130 7. An average side slope can be used to account for the design of safety benches 8 3 -50,000 0 50,000 100,000 150,000 200,000 250,000 300,000 DRY AVERAGE WET ALLVolume (ft3/yr)Overflow Change in Storage Evaporation Irrigation 0.00 0.50 1.00 1.50 2.00 2.50 3.00 3.50 DRY AVERAGE WET ALLP (kg/yr)Overflow Change in Storage Sedimentation Irrigation -20.0% 0.0% 20.0% 40.0% 60.0% 80.0% 100.0% 120.0% DRY AVERAGE WET ALLVolume (% Watershed Flow)Overflow Change in Storage Evaporation Irrigation 0.0% 20.0% 40.0% 60.0% 80.0% 100.0% 120.0% DRY AVERAGE WET ALLP (% Watershed Load)Overflow Change in Storage Sedimentation Irrigation 0 2,000 4,000 6,000 8,000 10,000 12,000 0 10,000 20,000 30,000 40,000 50,000 60,000 1/1 4/11 7/20 10/28 Overflow Volume (cubic feet)Volume in Basin (cubic feet)DRY YEAR (2009) Overflow Volume at Overflow Minimum Volume Basin 0 1,000 2,000 3,000 4,000 5,000 6,000 7,000 8,000 0 10,000 20,000 30,000 40,000 50,000 60,000 1/1 4/11 7/20 10/28 Overflow Volume (cubic feet)Volume in Basin (cubic feet)AVERAGE YEAR (2011) Overflow Volume at Overflow Minimum Volume Basin 0 5,000 10,000 15,000 20,000 25,000 30,000 0 10,000 20,000 30,000 40,000 50,000 60,000 1/1 4/11 7/20 10/28 Overflow Volume (cubic feet)Volume in Basin (cubic feet)WET YEAR (2007) Overflow Volume at Overflow Minimum Volume Basin Avienda Rowhomes Stormwater Reuse - Rowhomes Basin 13P 4/25/2023 Airrigation ft 2 Dirrigation in/day Begin/End 5 to 10 month 100% 19.0% 77.9% 0.0% 3.1%% Total Vol Awatershed acres 187,514 35,562 146,101 0 5,851 Vol (ft3/yr) %Imp, connected %100% 9.8% 33.8% 55.2% 1.2%% Total P %Imp, disconnected %2.18 0.21 0.74 1.20 0.03 TP (kg/yr) CNImp, disconnected 100% 23.6% 75.0% 0.0% 1.4%% Total Vol CNpervious 221,528 52,325 166,205 0 2,998 Vol (ft3/yr) CW-TP ppb 100% 12.5% 34.4% 52.6% 0.5%% Total P CW-orthoP ppb 2.57 0.32 0.88 1.35 0.01 TP (kg/yr) Vbasin ft 3 100% 33.9% 64.7% 0.0% 1.4%% Total Vol Vstorage ft 3 321,375 108,813 208,039 0 4,523 Vol (ft3/yr) Lbasin/Wbasin 210 by 28 ft 100% 16.3% 26.4% 56.9% 0.4%% Total P Begin/End 1 to 12 month 3.73 0.61 0.98 2.12 0.02 TP (kg/yr) Dbasin ft 100%25.5% 72.6% 0.0% 2.0%% Total Vol Side slope ratio 243,472 65,567 173,448 0 4,457 Vol (ft3/yr) Evaporation 1=on; 0=off 100%12.9% 31.5% 54.9% 0.7%% Total P Vbasin, initial ft 3 2.83 0.38 0.87 1.56 0.02 TP (kg/yr) WATERSHED IRRIGATION STORAGE 0 ALL WET DRY AVERAGE Rainfall Year 5.779 68% 80 98 410 0% 1 SUMMARY: Annual Basin Dynamics111,840 0.5 INPUTS To Overflow To Irrigation To Evaporation To Sedimentation Change in Storage OUTPUTS From the Watershed Units Stormwater Reuse Calculator, Version 2.0, October 2013 (Contact information: bemmons@eorinc.com or www.eorinc.com) Developed by Emmons & Olivier Resources (EOR) with funding from Mississippi Watershed Management Organization & Minnehaha Creek Watershed District 8. The initial basin volume can be set by the user to account for winter dynamics 9. Model results assume regular maintenance to remove accumulated sediments! User notes: 1. The irrigation and watershed areas can be independent 4. The watershed P concentrations and fractions can be set to site specific data 5. The user must define appropriate basin geometry or model results are invalid 6. The storage volume can be set to maintain any desired minimum pond depth 2. The user must composite the CN for disconnected impervious 3. Turn off evaporation until all basin geometry is entered and valid 100 27,800 1 7. An average side slope can be used to account for the design of safety benches 4 1 0 50,000 100,000 150,000 200,000 250,000 300,000 350,000 DRY AVERAGE WET ALLVolume (ft3/yr)Overflow Change in Storage Evaporation Irrigation 0.00 0.50 1.00 1.50 2.00 2.50 3.00 3.50 4.00 DRY AVERAGE WET ALLP (kg/yr)Overflow Change in Storage Sedimentation Irrigation 0.0% 20.0% 40.0% 60.0% 80.0% 100.0% 120.0% DRY AVERAGE WET ALLVolume (% Watershed Flow)Overflow Change in Storage Evaporation Irrigation 0.0% 20.0% 40.0% 60.0% 80.0% 100.0% 120.0% DRY AVERAGE WET ALLP (% Watershed Load)Overflow Change in Storage Sedimentation Irrigation 0 2,000 4,000 6,000 8,000 10,000 12,000 0 5,000 10,000 15,000 20,000 25,000 30,000 1/1 4/11 7/20 10/28 Overflow Volume (cubic feet)Volume in Basin (cubic feet)DRY YEAR (2009) Overflow Volume at Overflow Minimum Volume Basin 0 2,000 4,000 6,000 8,000 10,000 12,000 14,000 16,000 18,000 0 5,000 10,000 15,000 20,000 25,000 30,000 1/1 4/11 7/20 10/28 Overflow Volume (cubic feet)Volume in Basin (cubic feet)AVERAGE YEAR (2011) Overflow Volume at Overflow Minimum Volume Basin 0 5,000 10,000 15,000 20,000 25,000 0 5,000 10,000 15,000 20,000 25,000 30,000 1/1 4/11 7/20 10/28 Overflow Volume (cubic feet)Volume in Basin (cubic feet)WET YEAR (2007) Overflow Volume at Overflow Minimum Volume Basin Avienda 5/5/2023 Stormwater Management Plan – Phase 2 iii iii APPENDIX H Table A – Wetlands Hydrology Table B – Wetland Functions and Values from Development DATE 05/04/23 PROJECT NAME Avienda PROJECT NUMBER SCD14001.LEV PROJECT LOCATION Chanhassen, MN BY CNC Discharge Volumes by Storm Event Wetland ID Phase 2 12/11/17 Current Current 12/11/17 Current 12/11/17 Current Volume % of Ex.12/11/17 Current 12/11/17 Current 12/11/17 Current Volume % of Ex.12/11/17 Current 12/11/17 Current 12/11/17 Current Volume % of Ex.12/11/17 Current 12/11/17 Current 12/11/17 Current Volume % of Ex.12/11/17 Current 12/11/17 Current 12/11/17 Current Volume % of Ex.12/11/17 Current 12/11/17 Current Wetland 3 (same outlet elev.)7.486 7.837 5.208 6.081 5.208 0.563 0.569 0.476 83.7% 0.599 0.506 106.4% 88.9% 0.743 0.738 0.614 83.2% 0.767 0.639 103.2% 86.6% 1.445 1.404 1.135 80.8% 1.397 1.146 96.7% 81.6% 3.204 3.129 2.407 76.9% 2.902 2.386 90.6% 76.3% 4.342 4.546 3.041 66.9% 3.195 2.941 73.6% 64.7% Wetland 4 (same outlet)*29.862 29.862 22.513 45.595 24.628 2.429 1.352 0.384 28.4% 3.210 0.672 132.2% 49.7% 3.179 1.863 0.537 28.8% 4.094 1.109 128.8% 59.5% 6.061 4.014 1.248 31.1% 6.637 3.031 109.5% 75.5% 13.193 9.974 3.453 34.6% 11.566 7.896 87.7% 79.2% 17.322 17.322 7.600 43.9% 16.676 9.061 96.3% 52.3% Wetland 6 (same outlet)14.642 16.210 16.912 13.964 15.265 0.545 0.961 1.330 138.4% 1.074 0.973 197.1% 101.2% 0.793 1.300 1.812 139.4% 1.459 1.359 184.0% 104.5% 1.858 2.665 3.630 136.2% 2.945 2.876 158.5% 107.9% 4.852 6.238 8.035 128.8% 6.436 6.546 132.6% 104.9% 8.493 9.403 10.077 107.2% 5.665 5.773 66.7% 61.4% MNDOT M9 (south)113.390 113.390 118.555 116.830 115.998 9.095 7.388 8.006 108.4% 9.018 6.528 99.2% 88.4% 11.820 9.743 10.431 107.1% 11.926 8.946 100.9% 91.8% 22.377 19.168 20.017 104.4% 23.255 19.111 103.9% 99.7% 48.854 43.851 44.786 102.1% 51.002 44.695 104.4% 101.9% 65.649 65.761 65.067 98.9% 58.260 52.679 88.7% 80.1% MNDOT M10 (east)96.925 97.033 94.520 98.449 98.723 6.867 6.414 7.760 121.0% 7.658 2.738 111.5% 42.7% 9.262 8.597 10.165 118.2% 10.190 5.147 110.0% 59.9% 18.409 17.127 19.420 113.4% 19.967 14.714 108.5% 85.9% 40.950 38.775 42.435 109.4% 43.377 37.278 105.9% 96.1% 54.631 55.535 57.540 103.6% 46.074 37.148 84.3% 66.9% High Water Levels by Storm Event Wetland ID Phase 2 12/11/17 Current HWL 12/11/17 Current 12/11/17 Current HWL Change 12/11/17 Current 12/11/17 Current 12/11/17 Current HWL Change 12/11/17 Current 12/11/17 Current 12/11/17 Current HWL Change 12/11/17 Current 12/11/17 Current 12/11/17 Current HWL Change 12/11/17 Current 12/11/17 Current 12/11/17 Current HWL Change 12/11/17 Current 12/11/17 Current Wetland 3 (same outlet elev.)921.90 920.58 920.58 920.80 920.58 921.54 920.87 921.07 0.20 921.29 921.14 -0.25 0.27 921.68 920.89 921.14 0.25 921.36 921.20 -0.32 0.31 921.97 921.02 921.41 0.39 921.63 921.50 -0.34 0.48 922.25 921.22 921.96 0.74 922.05 922.02 -0.20 0.80 922.00 920.72 921.03 0.31 921.26 921.04 -0.74 0.32 Wetland 4 (same outlet)884.03 884.00 884.00 884.03 884.00 884.65 884.53 884.20 -0.33 884.47 884.30 -0.18 -0.23 884.71 884.58 884.26 -0.32 884.54 884.33 -0.17 -0.25 884.92 884.80 884.44 -0.36 884.79 884.51 -0.13 -0.29 885.21 885.13 884.70 -0.43 884.98 884.77 -0.23 -0.36 884.37 884.37 884.27 -0.10 884.39 884.30 0.02 -0.07 Wetland 6 Lower Reach (same outlet)**na na na na na 884.81 885.01 884.67 -0.34 884.81 884.35 0.00 -0.66 884.87 885.06 884.71 -0.35 884.88 884.39 0.01 -0.67 885.08 885.28 884.88 -0.40 885.10 884.46 0.02 -0.82 885.35 885.58 885.03 -0.55 885.30 884.74 -0.05 -0.84 884.74 884.76 884.73 -0.03 884.73 884.32 -0.01 -0.44 MNDOT M9 (south)869.50 869.50 869.50 869.50 869.50 870.32 870.16 870.20 0.04 870.30 870.15 -0.02 -0.01 870.49 870.35 870.35 0.00 870.49 870.31 0.00 -0.04 871.29 871.06 870.95 -0.11 871.33 871.05 0.04 -0.01 873.10 872.78 872.48 -0.30 873.21 872.73 0.11 -0.05 871.63 871.63 871.57 -0.06 871.53 871.33 -0.10 -0.30 MNDOT M10 (east)891.00 891.00 891.00 891.00 891.00 891.44 891.39 891.52 0.13 891.54 891.35 0.10 -0.04 891.68 891.61 891.75 0.14 891.78 891.59 0.10 -0.02 892.56 892.43 892.62 0.19 892.70 892.48 0.14 0.05 894.33 894.16 894.39 0.23 894.50 894.17 0.17 0.01 893.28 893.29 893.35 0.06 893.12 892.83 -0.16 -0.46 Inundation by Storm Event Wetland ID Phase 2 12/11/17 Current HWL 12/11/17 Current 12/11/17 Current Time Change 12/11/17 Current 12/11/17 Current 12/11/17 Current Time Change 12/11/17 Current 12/11/17 Current 12/11/17 Current Time Change 12/11/17 Current 12/11/17 Current Wetland 3 (same outlet elev.)921.90 920.58 920.58 920.80 920.58 na 26.2 41.4 15.2 na 40.8 na 14.6 na 26.4 43.0 16.6 na 42.0 na 15.6 na 26.4 49.4 23.0 na 42.6 na 16.2 Wetland 4 (same outlet)884.03 884.00 884.00 884.03 884.00 na 30.6 33.6 3.0 na 35.6 na 5.0 na 30.8 35.0 4.2 na 38.0 na 7.2 na 30.8 35.2 4.4 na 41.0 na 10.2 Wetland 6 Lower Reach (same outlet)**na na na na na na na na na na na na na na na na na na na na na na na na na na na na na MNDOT M9 (south)869.50 869.50 869.50 869.50 869.50 na 0.05 0.05 0.00 na 0.05 na 0.00 na 0.05 0.05 0.00 na 0.05 na 0.00 na 0.06 0.06 0.00 na 0.06 na 0.00 MNDOT M10 (east)891.00 891.00 891.00 891.00 891.00 na 0.05 0.05 0.00 na 0.05 na 0.00 na 0.05 0.05 0.00 na 0.05 na 0.00 na 0.06 0.06 0.00 na 0.06 na 0.00 Note that none of the tables include the effects of stormwater reuse for irrigation. 1-Year Storm Innudation Time (hr.) 2-Year Storm Inundation Time (hr.) Phase 3 Phase 3Ultimate Ult. Change Existing Ultimate Existing HWL Ultimate Phase 3Existing HWLUlt. ChangePhase 3 % of ExistingPhase 3 Phase 3 Phase 3 Phase 3 Phase 3Existing Volume Ultimate % of Existing Normal Water Level 1-Year High Water Level 2-Year High Water Level 10-Year High Water Level 2-Year Discharge Volume (af)1-Year Discharge Volume (af) 10-Year Discharge Volume (af) *Note: the Ultimate Drainage Area for Wetland 4 includes area that drains elsewhere (there are multiple outlets from an upstream pond) Drainage Areas (ac) 100-Year High Water Level 10-Day Snowmelt High Water Level Ultimate Ult. ChangeExisting HWL Ultimate Ult. Change Existing HWLPhase 3 Phase 3 **Note: Wetland 6 doesn't form a basin. Therefore, water levels are average flow depth. Ultimate Ult. Change Existing HWL Ultimate Normal Water Level TABLE A - WETLAND HYDROLOGY Existing Ultimate Existing Volume Ultimate Ultimate % of Existing Existing Volume Ultimate % of Existing Existing Volume Ultimate % of Existing 100-Year Discharge Volume (af) 10-Day Snowmelt Discharge Volume (af) Existing Volume Ultimate 2-Year Storm Elevation above Outlet at 360 Hours Phase 3 Ult. Change 10-Year Storm Inundation Time (hr.) 10-Year Storm Elevation above Outlet at 360 Hours **Note: Wetland 6 doesn't form a basin. Therefore, water levels are average flow depth. Ult. ChangeExisting Elev. Ultimate Ult. Change Existing Elev. UltimateExisting Phase 3Existing TimeUltimate 1-Year Storm Elevation above Outlet at 360 Hours Landform®, SensiblyGreen® and Site to Finish® are registered service marks of Landform Professional Services, LLC. L A N D F O R M 1 DATE 05/05/23 PROJECT NAME AVIENDA PROJECT NUMBER SCD14001.LEV PROJECT LOCATION Chanhassen, MN BY SES Stormwater Assessment Summary 12/11/2017 5/5/2023 12/11/2017 5/5/2023 12/11/2017 5/5/2023 12/11/2017 5/5/2023 Major Watershed Hydrologic – Runoff Volume per Storm (af)* Hydrologic – Runoff Volume per Storm (af)* Water Quality – TP (lbs./yr.) Water Quality – TP (lbs./yr.) Water Quality – TSS (lbs./yr.) Water Quality – TSS (lbs./yr.)Lake Susan UAA Plan Lake Susan UAA Plan 1-yr: 3.353 1-yr: 2.130 10-yr: 8.259 10-yr: 6.205 100-yr: 17.613 100-yr: 14.655 1-yr: 5.284 1-yr: 3.997 10-yr: 14.080 10-yr: 11.481 100-yr: 32.745 100-yr: 27.959 1-yr: 1.736 1-yr: 3.479 10-yr: 7.791 10-yr: 8.501 100-yr: 17.780 100-yr: 18.318 1-yr: 4.586 1-yr: 4.883 =10-yr: 14.728 10-yr: 12.969 100-yr: 34.021 100-yr: 29.785 Discharge to Lake Susan Change in total runoff volume to Lake Susan of 69%-101%; Change in total runoff volume to Lake Susan of 104%-127%; Reduction of 7.56 lbs./yr. in Lake Susan watershed Reduction of 6.54 lbs./yr. in Lake Susan watershed Reduction of 1,710.7 lbs./yr in Lake Susan watershed Reduction of 2,272.4 lbs./yr in Lake Susan watershed Improvement to water quality in Lake Susan watershed Improvement to water quality in Lake Susan watershed Discharge to Bluff Creek Change in total runoff volume to Bluff Creek of 87%-104% Change in total runoff volume to Bluff Creek of 95%-123% Reduction of 60.19 lbs./yr. in Bluff Creek watershed Reduction of 17.39 lbs./yr. in Bluff Creek watershed Reduction of 540.5 lbs./yr. in Bluff Creek watershed Reduction of 3,970.8 lbs./yr. in Bluff Creek watershed na na Non-Degredation Summary 12/11/2017 3/22/2022 12/11/2017 5/5/2023 12/11/2017 5/5/2023 Major Watershed Non-Degredation Requirement per City, Annual Maximum Allowable Runoff (af) Non-Degredation Requirement per City, Annual Maximum Allowable Runoff (af) Non-Degredation per Site P8 Modeling, Annual Runoff (af) Phases 1-3 Non- Degredation per Site MIDS Modeling, Annual Runoff (af) Results Results * Total runoff volumes per storm are not directly regulated City or Watershed rules. Refer to non-degradation summary for runoff volume compliance. 1,014.8 na Discharge to Lake Susan 10.60 1,949.0 No methods implemented/no change 474.3 na Discharge to Lake Susan 3.04 238.3 Helps to meet TP goal, reduces TP by 64 lbs./yr.ResultsDischarge to Bluff Creek 6.91 Discharge to Bluff Creek 67.10 Existing ConditionsPhases 1-3 ConditionsDischarge to Lake Susan Discharge to Bluff Creek Satisfied Satisfied108.08 18.94 54.66 8.5254.66 108.08 24.271 24.97 Satisfied Satisfied TABLE B - WETLAND FUNCTIONS AND VALUES IMPACTS FROM DEVELOPMENT 14.49 24.04 7.95 6.65 2,632.2 4,367.6 359.8 396.8 No methods implemented/no change na Helps to meet TP goal, reduces TP by 6.54 lbs./yr. na Ultimate ConditionsLandform®, SensiblyGreen® and Site to Finish® are registered service marks of Landform Professional Services, LLC. L A N D F O R M 1 Avienda 5/5/2023 Stormwater Management Plan – Phase 2 iv iv APPENDIX I Phases 1 & 2 - Storm Sewer Drainage Area Maps Phases 1 & 2 - Storm Sewer Pipe Sizing Catch Basin Inlet Calculations and Lane Spread CB 208TOTAL: 3,762 S.F.PERVIOUS: 0 S.F.1+002+003+004+00 7+00 7+80.79 SAN>SAN>SAN>SAN>SAN>SAN>SAN>SAN>SANSAN>SAN>STS >>STS>>STS>>STS>>STSSTS>>STS>>SAN>SANB-5B-9B-13B-14B-27B-30B-31STS>>STS>>STS>>GRADEBREAKGRADEBREAKGRADEBREAK SWALESTS>>PROPOSED BUILDINGFFE = 924.95GFE = 924.53PROPOSED BUILDINGFFE = 925.60GFE = 925.18PROPOSED BUILDINGFFE = 926.20GFE = 925.78PROPOSED BUILDINGFFE = 926.50GFE = 926.08PROPOSED BUILDINGFFE = 925.75GFE = 925.33PROPOSED BUILDINGFFE = 925.20GFE = 924.78PROPOSED BUILDINGFFE = 923.85GFE = 923.43PROPOSED BUILDINGFFE = 924.40GFE = 923.98PROPOSED BUILDINGFFE = 925.35GFE = 924.93PROPOSED BUILDINGFFE = 925.70GFE = 925.28PROPOSED BUILDINGFFE = 925.15GFE = 924.73PROPOSED BUILDINGFFE = 926.40GFE = 925.98PROPOSED BUILDINGFFE = 926.15GFE = 925.73123412341111111111112222222222223333333333334444444441234567891011121314PROPOSED BUILDINGFFE = 925.00GFE = 924.58>>>>CB 207TOTAL: 2,647 S.F.PERVIOUS: 0 S.F.CB 205TOTAL: 25,796 S.F.PERVIOUS: 2,896 S.F.CB 110TOTAL: 1,701 S.F.PERVIOUS: 1,701 S.F.CB 109TOTAL: 1,633 S.F.PERVIOUS: 1,633 S.F.CB 108TOTAL: 1,701 S.F.PERVIOUS: 1,701 S.F.CB 107TOTAL: 1,761 S.F.PERVIOUS: 1,761 S.F.CB 106TOTAL: 1,726 S.F.PERVIOUS: 1,726 S.F.CB 104TOTAL: 29,587 S.F.PERVIOUS: 4,369 S.F.CB 103TOTAL: 22,636 S.F.PERVIOUS: 3,228 S.F.CB 101ATOTAL: 13,975 S.F.PERVIOUS: 1,266 S.F.CB 204ATOTAL: 3,502 S.F.PERVIOUS: 0 S.F.CB 204TOTAL: 31,727 S.F.PERVIOUS: 7,037 S.F.CB 101TOTAL: 26,472 S.F.PERVIOUS: 7,784 S.F.CB 203ATOTAL: 1,780 S.F.PERVIOUS: 1,780 S.F.CB 202ATOTAL: 1,744 S.F.PERVIOUS: 1,744 S.F.CB 201ATOTAL: 1,800 S.F.PERVIOUS: 1,800 S.F.CB 201BTOTAL: 1,844 S.F.PERVIOUS: 1,844 S.F.CB 105ATOTAL: 10,941 S.F.PERVIOUS: 1,738 S.F.CB 105BTOTAL: 2,419 S.F.PERVIOUS: 648 S.F.CB 102TOTAL: 1,280 S.F.PERVIOUS: 737 S.F.CB 202TOTAL: 380 S.F.PERVIOUS: 157 S.F.CB 203TOTAL: 8,869 S.F.PERVIOUS: 2,527 S.F.CB 212TOTAL: 6,976 S.F.PERVIOUS: 6,976 S.F.Landform and Site to Finish are registered service marks of Landform Professional Services, LLC.RRin collaboration with: LEVEL 7 DEVELOPMENTRSP ARCHITECTS · WELSH AND COLLIERSAVIENDA ROWHOMES · Chanhassen, MNStormwater Management Plan · 05.05.2023PROPOSED CB DRAINAGELEGEND:DRAINAGE BOUNDARY DATE: STORM FREQUENCY:10 Years PROJECT NAME: CALCULATIONS BY:AKH/DBL PROJECT NUMBER: MN ATLAS 14 REGION: PROJECT CITY: PROJECT COUNTY: PROJECT ENGINEER: Segment C - Coef. I - Intensity Q - Rate Pipe Upstream Structure Downstream Structure CB Pipe CB Pipe CB Pipe Total CB Total CB Pipe Len.Dia.Grade Man's.Vel.Cap.Excess Build Size Drop Build (Ac.)(Ac.)Indiv.Avg.(Min.)(Min.)(Min.)(In/Hr)(In/Hr)(CFS)(CFS)(Ft.)(In.)(%)n (Ft/S)(CFS)Cap. (Ft.)(In.) (Ft.) (Ft.) MINNESOTA STORM SEWER DESIGN A - Trib. Areas Carver Tc - Time of Conc. 05/04/23 AVIENDA ROWHOMES SCD14001.LEV.004 Chanhassen SES Top Rim InvertStructure South CommentsCasting Structure MatchTop Rim InletFrom To Mat'l. CB 112 CB 111 0.16 0.16 0.20 0.20 5.0 0.4 5.4 8.38 8.38 0.3 0.3 58 6 0.50 PVC 0.010 2.6 0.5 0.2 CB 112 920.90 918.36 2.54 CB 111 923.84 918.07 8/10ths 5.77 CB 111 CB 110 0.00 0.16 0.20 0.20 5.0 1.0 6.3 8.38 7.72 0.0 0.2 150 6 0.50 PVC 0.010 2.6 0.5 0.3 CB 111 923.84 918.07 5.77 CB 110 924.22 917.32 8/10ths 6.90 CB 110 CB 109 0.04 0.20 0.20 0.20 5.0 0.6 6.9 8.38 7.72 0.1 0.3 99 6 0.50 PVC 0.010 2.6 0.5 0.2 CB 110 924.22 917.32 6.90 CB 109 924.90 916.82 8/10ths 8.08 CB 109 CB 108 0.04 0.24 0.20 0.20 5.0 0.8 7.7 8.38 7.20 0.1 0.3 124 6 0.50 PVC 0.010 2.6 0.5 0.2 CB 109 924.90 916.82 8.08 CB 108 924.90 916.20 8/10ths 8.70 CB 108 CB 107 0.04 0.28 0.20 0.20 5.0 0.8 8.5 8.38 6.78 0.1 0.4 125 6 0.50 PVC 0.010 2.6 0.5 0.1 CB 108 924.90 916.20 8.70 CB 107 924.16 915.58 8/10ths 8.58 CB 107 CB 106 0.04 0.32 0.20 0.20 5.0 0.6 9.2 8.38 6.43 0.1 0.4 101 6 0.50 PVC 0.010 2.6 0.5 0.1 CB 107 924.16 915.58 8.58 CB 106 923.59 915.07 8/10ths 8.52 CB 106 MH 105 0.04 0.36 0.20 0.20 5.0 0.8 10.0 8.38 6.13 0.1 0.4 133 6 0.50 PVC 0.010 2.6 0.5 0.1 CB 106 923.59 915.07 8.52 MH 105 921.08 914.41 8/10ths 6.67 MH 105 CB 104 0.00 0.66 0.20 0.49 5.0 0.3 10.3 8.38 6.13 0.0 2.0 64 12 0.50 RCP 0.013 3.2 2.5 0.5 MH 105 921.08 914.01 7.07 CB 104 921.66 913.69 8/10ths 7.97 CB 104 CB 103 0.68 1.34 0.84 0.66 5.0 0.3 10.6 8.38 6.13 4.8 5.5 67 18 0.50 RCP 0.013 4.2 7.4 2.0 CB 104 921.66 913.29 8.37 CB 103 922.66 912.95 8/10ths 9.71 CB 103 CB 102 0.52 1.86 0.84 0.71 5.0 0.4 11.0 8.38 5.84 3.7 7.8 110 21 0.50 RCP 0.013 4.7 11.2 3.4 CB 103 922.66 912.75 9.91 CB 102 922.71 912.20 8/10ths 10.51 CB 102 CB 101 0.03 1.89 0.52 0.71 5.0 0.2 11.2 8.38 5.84 0.1 7.9 47 21 0.50 RCP 0.013 4.7 11.2 3.3 CB 102 922.71 912.20 10.51 CB 101 921.85 911.97 8/10ths 9.88 CB 101 TI 100 0.61 2.82 0.73 0.73 5.0 0.0 11.2 8.38 5.84 3.7 12.1 13 24 0.50 RCP 0.013 5.1 16.0 3.9 CB 101 921.85 911.77 10.08 TI 100 922.11 911.70 Invert 10.41 CB 105B CB 105A 0.06 0.06 0.75 0.75 5.0 0.1 5.1 8.38 8.38 0.3 0.3 25 12 1.00 RCP 0.013 4.5 3.6 3.2 CB 105B 920.04 915.60 4.44 CB 105A 920.05 915.35 8/10ths 4.70 CB 105A MH 105 0.25 0.31 0.83 0.82 5.0 0.1 5.2 8.38 8.38 1.7 2.1 34 12 1.00 RCP 0.013 4.5 3.6 1.5 CB 105A 920.05 915.35 4.70 MH 105 921.08 915.01 Drop 1.00 6.07 CB 101A CB 101 0.32 0.32 0.88 0.88 5.0 0.1 5.1 8.38 8.38 2.4 2.4 25 12 1.00 RCP 0.013 4.5 3.6 1.2 CB 101A 921.84 918.02 3.82 CB 101 921.85 917.77 Drop 6.00 4.08 CB 208 CB 207 0.09 0.09 0.95 0.95 5.0 0.3 5.3 8.38 8.38 0.7 0.7 38 12 0.30 RCP 0.013 2.5 2.0 1.3 CB 208 917.30 914.45 2.85 CB 207 917.50 914.34 8/10ths 3.16 CB 207 CB 206 0.06 0.15 0.95 0.95 5.0 1.1 6.3 8.38 7.72 0.5 1.1 162 12 0.30 RCP 0.013 2.5 2.0 0.9 CB 207 917.50 914.34 3.16 CB 206 920.85 913.85 8/10ths 7.00 CB 206 CB 205 0.49 0.64 0.82 0.85 5.0 0.3 6.6 8.38 7.72 3.4 4.2 49 18 0.30 RCP 0.013 3.3 5.8 1.6 CB 206 920.85 913.45 7.40 CB 205 921.73 913.31 8/10ths 8.42 CB 205 CB 204 0.59 1.23 0.87 0.86 5.0 0.2 6.8 8.38 7.72 4.3 8.1 41 21 0.30 RCP 0.013 3.6 8.7 0.5 CB 205 921.73 913.11 8.62 CB 204 921.85 912.98 8/10ths 8.87 CB 204 CB 203 0.24 1.55 0.72 0.84 5.0 0.6 7.4 8.38 7.20 1.4 9.4 148 24 0.30 RCP 0.013 3.9 12.4 3.0 CB 204 921.85 912.78 9.07 CB 203 923.23 912.34 8/10ths 10.89 CB 203 CB 202 0.20 1.79 0.74 0.81 5.0 0.5 7.9 8.38 7.20 1.3 10.5 117 24 0.30 RCP 0.013 3.9 12.4 1.9 CB 203 923.23 912.34 10.89 CB 202 923.90 911.99 8/10ths 11.91 CB 202 MH 201 0.01 1.84 0.64 0.80 5.0 0.4 8.3 8.38 6.78 0.0 10.0 88 24 0.30 RCP 0.013 3.9 12.4 2.4 CB 202 923.90 911.99 11.91 MH 201 923.58 911.72 8/10ths 11.86 MH 201 TI 200 0.00 1.92 0.20 0.77 5.0 0.0 8.3 8.38 6.78 0.0 10.1 8 24 0.30 RCP 0.013 3.9 12.4 2.3 MH 201 923.58 911.72 11.86 TI 200 923.54 911.70 Invert 11.84 CB 201B CB 201A 0.04 0.04 0.20 0.20 5.0 0.5 5.5 8.38 8.38 0.1 0.1 120 6 1.00 PVC 0.010 3.7 0.7 0.7 CB 201B 923.52 920.19 3.33 CB 201A 924.20 918.99 8/10ths 5.21 CB 201A MH 201 0.04 0.08 0.20 0.20 5.0 0.1 5.7 8.38 8.38 0.1 0.1 27 6 1.00 PVC 0.010 3.7 0.7 0.6 CB 201A 924.20 918.99 5.21 MH 201 923.58 918.72 Drop 7.00 4.86 CB 202A CB 202 0.04 0.04 0.20 0.20 5.0 0.1 5.1 8.38 8.38 0.1 0.1 22 6 1.00 PVC 0.010 3.7 0.7 0.7 CB 202A 924.68 920.71 3.97 CB 202 923.90 920.49 Drop 8.50 3.41 CB 203A CB 203 0.04 0.04 0.20 0.20 5.0 0.1 5.1 8.38 8.38 0.1 0.1 22 6 1.00 PVC 0.010 3.7 0.7 0.7 CB 203A 923.80 920.06 3.74 CB 203 923.23 919.84 Drop 7.50 3.39 CB 204A CB 204 0.08 0.08 0.95 0.95 5.0 0.1 5.1 8.38 8.38 0.6 0.6 25 12 1.00 RCP 0.013 4.5 3.6 2.9 CB 204A 921.84 918.03 3.81 CB 204 921.85 917.78 Drop 5.00 4.07 COPYRIGHT © LANDFORM Landform®, SensiblyGreen® and Site to Finish® are registered service marks of Landform Professional Services, LLC.1 Avienda 5/5/2023 Stormwater Management Plan – Phase 2 v v APPENDIX J Jellyfish Filter Documentation Page | 1 January 2021 GENERAL USE LEVEL DESIGNATION FOR BASIC (TSS) AND PHOSPHORUS TREATMENT For Contech Engineered Solutions Jellyfish® Filter Ecology’s Decision: 1. Based on Contech Engineered Solution’s application submissions, Ecology hereby issues a General use level designation (GULD) for Basic (TSS) and Phosphorus Treatment for Contech’s Jellyfish® Filter:  Sized at a hydraulic loading rate of no greater than 0.21 gpm/sf filter surface for hi-flo cartridges and 0.11 gpm/sf filter surface for draindown cartridges Table 1. Jellyfish® cartridge hydraulic loading rates and sediment capture capacity1 associated with various filter cartridge sizes. Cartridge Length Design Treatment Flow Rate Design Sediment Mass Loading Capacity 15 inches Hi-Flo 22 gpm Draindown 11 gpm Hi-Flo 35 lbs Draindown 17 lbs 27 inches Hi-Flo 40 gpm Draindown 20 gpm Hi-Flo 63 lbs Draindown 31 lbs 40 inches Hi-Flo 60 gpm Draindown 30 gpm Hi-Flo 93 lbs Draindown 46 lbs 54 inches Hi-Flo 80 gpm Draindown 40 gpm Hi-Flo 125 lbs Draindown 63 lbs 1 Design sediment mass loading capacity based on laboratory testing using silica sediment. Page | 2 2. Ecology approves Jellyfish® Filter units at the design treatment flow rates shown in Table 1. Total Jellyfish Filter system design treatment capacity is the sum of the design treatment capacity of individual cartridges and must equal or exceed the water quality design flow rate. Calculate the water quality design flow rate that must be treated by an individual treatment system using the following procedures:  Western Washington: For treatment installed upstream of detention or retention, the water quality design flow rate is the peak 15-minute flow rate as calculated using the latest version of the Western Washington Hydrology Model or other Ecology- approved continuous runoff model.  Eastern Washington: For treatment installed upstream of detention or retention, the water quality design flow rate is the peak 15-minute flow rate as calculated using one of the three methods described in Chapter 2.7.6 of the 2019 Stormwater Management Manual for Eastern Washington (SWMMEW) or local manual.  Entire State: For treatment installed downstream of detention, the water quality design flow rate is the full 2-year release rate of the detention facility. 3. The GULD has no expiration date but may be amended or revoked by Ecology. Ecology’s Conditions of Use: Jellyfish® Filter units shall comply with the following conditions: 1. Design, assemble, install, operate, and maintain Jellyfish® Filter units in accordance with Contech’s applicable manuals and documents and this Ecology Decision. 2. Contech uses sediment-loading capacity, in conjunction with the water quality design flow rate, to determine the target maintenance interval. 3. Jellyfish® Filters shall conform to specifications submitted to and approved by Ecology. 4. Maintenance: The required inspection/maintenance interval for stormwater treatment devices is often dependent on the efficiency of the device and the degree of pollutant loading from a particular drainage basin. Therefore, Ecology does not endorse or recommend a “one size fits all” maintenance cycle for a particular model/size of manufactured filter treatment device.  The Jellyfish® Filter is designed for a target maintenance interval of 12 months. Maintenance includes floatable trash, debris, and oil removal; sediment removal; and the rinsing or replacement of filter cartridges.  A Jellyfish® Filter tested in Dundee, OR averaged a 3.2 month maintenance interval. Construction activities were ongoing in the drainage basin and near the monitoring site during the first two years of the study. Monitoring personnel observed significant amounts of roadway sediments and organic debris in the runoff, and TSS concentrations were higher than typical for roadway runoff. The runoff that occurred during the study may be unusual, and the maintenance interval the Jellyfish® Filter required may not be indicative of other, more typical, sites. Page | 3  Owner/s operators must inspect Jellyfish® Filter systems for a minimum of twelve months from the start of post-construction operation to determine site-specific inspection/maintenance schedules and requirements. Owners/operators must conduct inspections monthly during the wet season, and every other month during the dry season. (According to the SWMMWW, the wet season in westerns Washington is October 1 to April 30. According to the SWMMEW, the wet season in eastern Washington is October 1 to June 30.) After the first year of operation, owners/operators must conduct inspections based on the findings during the first year of inspections.  Conduct inspections by qualified personnel, follow manufacturer’s guidelines, and use methods capable of determining either a decrease in treated effluent flow rate and/or a decrease in pollutant removal ability. 5. Install the Jellyfish® Filter in such a manner such that flows exceeding the maximum operating rate of the system are bypassed and will not resuspend captured sediment. 6. Discharges from the Jellyfish® Filter units shall not cause or contribute to water quality standards violations in receiving waters. Applicant: CONTECH Engineered Solutions Applicant’s Address: 11835 NE Glenn Widing Dr Portland, OR 97220 Application Documents:  Jellyfish® Filter Dundee, OR, General Use Level Designation Technical Evaluation Report, Prepared by CONTECH Engineered Solutions, December 28, 2020  Application Letter for CULD for Jellyfish Filter - Basic Treatment, Phosphorus Treatment, and Oil Treatment, dated April 27, 2012.  Letter from Imbrium Systems dated September 4, 2012 regarding the draft CULD/PULD document.  TAPE Analysis of Jellyfish Filter UF Field Study Data, prepared by Stormwater Management Services, LLC.  TARP Field Test Performance Monitoring of a Jellyfish Filter JF4-2-1. Performance Monitoring Report for JF4-2-1 Prepared By: University of Florida, Engineering School of Sustainable Infrastructure and Environment (ESSIE), University of Florida, Gainesville, FL 32611. Final Version: 01 November 2011.  Jellyfish Filter Systems Evaluation Report in Consideration for Pilot Level Designation (PLD) for Imbrium Systems Corporation, by Gary R. Minton, PhD, PE, with Resource Planning Associates in Seattle, Washington May 7, 2008 (updated July 1, 2008). Page | 4  NJCAT Technology Verification, Jellyfish Fine Sediment Filter, by the New Jersey Corporation for Advanced Technology (NJCAT) Program Imbrium Systems Corporation, June 2008 Applicant’s Use Level Request:  General use level designation as a Basic (TSS) and Phosphorus Treatment device in accordance with Ecology’s 2019 Stormwater Management Manual for Western Washington. Applicant’s Performance Claims: Based on results from a laboratory and field-testing, the applicant claims the Jellyfish® Filter, operating at a hydraulic loading rate of no more than 0.21 gpm/sf for hi-flo cartridges and 0.11 gpm/sf for draindown cartridges, is able to remove:  80% of total suspended solids (TSS) for influent concentrations greater than 100 mg/L and achieve a 20 mg/L effluent for influent concentrations less than 100 mg/L.  50% of total phosphorus for influent concentrations 0.1 to 0.5 mg/L Recommendations: Ecology finds that:  Contech Engineered Solutions has shown Ecology, through laboratory and field testing, that the Jellyfish® Filter is capable of attaining Ecology’s Basic (TSS) and Total Phosphorus treatment goals. Findings of Fact: Field Testing 2017-2020 Contech completed field testing in Dundee, OR on a Jellyfish® Filter unit containing six 54-inch hi-flo cartridges and one 54-inch draindown cartridge. This combination of cartridges resulted in a design flow capacity of 520 gpm (1.16 cfs). Since Contech conducted the field evaluation they contracted with Herrera Environmental Consultants to provide third party oversight.  The field evaluation was completed between March 2017 and April 2020. Throughout the evaluation a total of 23 individual storm events (18 flow-weighted composite samples and 5 peak flow grab samples) were sampled to evaluate system performance. All sampled events met the TAPE sampling event qualification criteria, while 21 of the 23 events met the influent requirements for TSS and/or total phosphorus. Peak flows during these 21 events ranged from 26% to 106% of the design treatment capacity of 520 gpm, with a mean peak flow rate of 67% of design.  Of the 23 TAPE qualified events, 21 met the requirements for TSS analysis (16 flow weighted composite; 5 peak flow grab samples). Influent concentrations ranged from 24 mg/L to 755 mg/L, with a mean concentration of 208 mg/L. Concentrations that exceeded the upper end of TAPE influent range were capped at 200 mg/L prior to calculating the pollutant removal efficiency. For all samples with influent concentrations greater than 100 mg/L the bootstrap estimate of the lower 95 percent confidence limit (LCL95) of the mean TSS reduction was 82%, meeting the 80% performance goal for Basic Treatment. The TAPE bootstrap calculator could not be used on samples with influent concentrations Page | 5 between 20 mg/L to 100 mg/L due to the limited number of events available (n=6). For these events the mean and median effluent TSS concentrations were 19.7 and 18.1 mg/L respectively, again meeting the 20 mg/L effluent goal for Basic Treatment.  Of the 23 TAPE qualified events, 18 met the requirements for total phosphorus analysis (13 flow-weighted composite; 5 peak flow grab samples). Influent concentrations ranged from 0.211 mg/L to 1.75 mg/L, with a mean concentration of 0.535 mg/L. Concentrations that exceeded the upper end of TAPE influent range were capped at 0.5 mg/L prior to calculating the pollutant removal efficiency. The LCL 95 mean percent removal goal was 70.1%, meeting the 50% performance goal for Phosphorus Treatment.  Median particle sized distribution results from three samples showed 20% of sediment >250 µm, 31% of sediment between 62.5 to 250 µm, and 51% of sediment <62.5 µm. This demonstrates the influent to the Jellyfish consisted of primarily silt-sized particles (3.9 to 62.5 µm) and is thus representative of Pacific Northwest Stormwater.  Contech encountered several unanticipated events and challenges that disrupted the sampling and/or resulted in lost data: the Jellyfish was taken offline twice to avoid atypical sediment loading that was the result of construction within the drainage basin; monitoring was suspended to repair or replace equipment that was damaged from vandalism and extreme weather; and, a cyber-attack on Contech storage drives resulted in a loss of approximately 15% of non-sampled flow and precipitation data. Field Testing 2010-2011 Results (second-generation membrane filtration cartridges) – University of Florida (Gainesville, FL) installed and tested a Jellyfish JF4-2-1. The University conducted monitoring of the system from May 28, 2010 to June 27, 2011, with runoff from 15.01 inches of rainfall. The monitoring followed the Technology Acceptance Reciprocity Partnership (TARP) field test protocol, per the guidelines of the New Jersey Department of Environmental Projection (NJDEP). The New Jersey Corporation for Advanced Technology (NJCAT), on May 14, 2012 certified the Jellyfish Filter for 80 percent TSS removal.  The JF4-2-1 operating at a maximum treatment flow rate of 200 gpm provided a median total suspended solids (TSS) removal of 89 percent, and a median suspended sediment concentration (SSC) removal of 99 percent. Influent TSS concentrations ranged from 16.3 to 261.0 mg/L. TSS concentrations in the range of 20-100 mg/L were reduced to less than 20 mg/L for 16 of 17 events. Average TSS removal for influent TSS between 100- 200 mg/L was 90 percent.  Other median pollutant removals included: total phosphorus, 59 percent; total nitrogen, 51 percent; total copper, 90 percent; and total zinc 70 percent.  Total oil and grease influent concentrations ranged from 0.2 to 4.1 mg/L, with a median removal efficiency of 62 percent.  No maintenance was required or carried out during the 13-month monitoring period. Curves of head loss versus flow rate were nearly identical for the system with fresh cartridges (beginning of monitoring) and dirty cartridges (end of monitoring period). The sump and filter cartridges captured 166 pounds of dry basis particulate matter. Page | 6  Runoff treated by the JF4-2-1 was from a nearby parking lot (approximately 75 percent pavement and 25 percent planting islands). Depending on storm event intensity and wind direction, the drainage area varied from 0.12 to 0.20 acres. Laboratory Testing and Results Imbrium conducted testing at the Monteco Limited Research & Development Centre (RDC) in Mississauga, Ontario with third party testing oversight provided by Prof. James Li of Ryerson University in Toronto. The laboratory set-up used a single cartridge fitted into a tank sized to be 1/7 the volume of a full-scale 7-cartridge Jellyfish Filter system. Based on the lab test results:  A Jellyfish Filter system fitted with a single Jellyfish cartridge or multiple Jellyfish cartridges can remove greater than 86% Sil-Co-Sil 106 (mean particle size 22 microns) within a 95% confidence interval of +/- 1.3% at the system’s 100% operating rate with influent sediment concentrations ranging from 100 to 300 mg/L. For systems using 12- inch diameter cartridges, each cartridge containing 91filtration tentacles of 54-inch length, the 100% operating rate is 50 gpm per cartridge operating at 12 inches driving head (i.e., 0.66 gpm/ft2). Each (of the) 91 filtration tentacles is composed of three 18- inch long segments for a total length of 54 inches with 76 ft2 of surface area (first generation membrane filtration cartridges).  Test runs at 100 mg/L influent concentration resulted in effluent concentrations ranging from 12 to 21 mg/L. Ten of the 11 test runs had effluent less than 20 mg/L (as required for Basic Treatment).  Sampling of effluent found an average D90 of about 14 microns indicating the Jellyfish Filter System is capable of removing most particles above 15 microns. Other Jellyfish Filter Related Issues Recommended to be Addressed by the Company: 1. Conduct hydraulic testing to obtain information about maintenance requirements on a site with runoff that is more typical of the Pacific Northwest. Technology Description: Download at: http://www.conteches.com/products/stormwater- management/treatment/jellyfish-filter Contact Information: Applicant: Jeremiah Lehman Contech Engineered Solutions, LLC. 11815 Glenn Widing Dr Portland, OR 97220 (503) 258-3136 jlehman@conteches.com Applicant website: www.conteches.com Page | 7 Ecology web link: http://www.ecy.wa.gov/programs/wq/stormwater/newtech/index.html Ecology: Douglas C. Howie, P.E. Department of Ecology Water Quality Program (360) 407-6444 douglas.howie@ecy.wa.gov Revision History Date Revision August 2008 PULD granted January 2012 PULD Extension granted September 2012 CULD for Basic treatment; PULD for Oil and Phosphorus treatment. January 2013 Modifications to format document in line with other Use Level Documents, Changes dates for QAPP, TER, and Expiration August 2014 Revised contact information and due dates for QAPP, TER, and expiration March 2015 Revised Contact Information to Contech from Imbrium November 2016 Revised Contech contact information March 2018 Revised TER delivery and Expiration dates, Changed text from Imbrium to Contech in selected locations April 2019 Revised TER delivery and Expiration dates September 2020 Revised TER delivery and Expiration dates January 2021 GULD Granted 11 4 / 1.2 JF4-2-1 2 1 200 / 0.45 12.6 6 / 1.8 JF6-3-1 3 1 280 / 0.62 17.7 JF6-4-1 4 1 360 / 0.80 22.7 JF6-5-1 5 1 440 / 0.98 27.8 JF6-6-1 6 1 520 / 1.16 32.8 8 / 2.4 JF8-6-2 6 2 560 / 1.25 35.3 JF8-7-2 7 2 640 / 1.43 40.4 JF8-8-2 8 2 720 / 1.60 45.0 JF8-9-2 9 2 800 / 1.78 50.5 JF8-10-2 10 2 880 / 1.96 55.5 10 / 3.0 JF10-11-3 11 3 1000 / 2.23 63.1 JF10-12-3 12 3 1080 / 2.41 68.1 JF10-12-4 12 4 1120 / 2.50 70.7 JF10-13-4 13 4 1200 / 2.67 75.7 JF10-14-4 14 4 1280 / 2.85 80.8 JF10-15-4 15 4 1360 / 3.03 85.8 JF10-16-4 16 4 1440 / 3.21 90.8 JF10-17-4 17 4 1520 / 3.39 95.9 JF10-18-4 18 4 1600 / 3.56 100.9 JF10-19-4 19 4 1680 / 3.74 106 12 / 3.6 JF12-20-5 20 5 1800 / 4.01 113.6 JF12-21-5 21 5 1880 / 4.19 118.6 JF12-22-5 22 5 1960 / 4.37 123.7 JF12-23-5 23 5 2040 / 4.54 128.7 JF12-24-5 24 5 2120 / 4.72 133.8 JF12-25-5 25 5 2200 / 4.90 138.8 JF12-26-5 26 5 2280 / 5.08 143.8 JF12-27-5 27 5 2360 / 5.26 148.9 Table 1 Design Flow Capacities Standard Jellyfish Filter Manhole Configurations Manhole Model Hi-Flo Draindown Design Treatment Design Treatment Diameter No. Cartridges 2 Cartridges2 Flow Rate Flow Rate ( ft / m)1 54 in / 1372 mm 54 in / 1372 mm (gpm / cfs) (L / S) 1 Smaller and larger systems may be custom designed 2 Shorter length cartridge configurations are available Jellyfish® Filter Technical Manual IMBRIUM®SYSTEMS Engineered Stormwater Treatment www.imbriumsystems.com CANADA/INTL: 800.565.4801 USA:888.279.8826 SCD14001 Landform® and Site to Finish® are registered service marks of Landform Professional Services., LLC APPENDIX K Nondegradation Summary City of Chanhassen Phase II Nondegradation P8 Output DATE 04/22/20 PROJECT NAME Avienda DP 7.3 PROJECT NUMBER SCD14001.LEV PROJECT LOCATION Chanhassen, MN BY GMH 2020 by On Site Area I.D. Area (ac) City Estimate: Annual Flows (ac- ft/yr) City Estimate: Annual Flows per Acre (ac-ft/ac) Area (ac) Annual Flows On Site (ac-ft) City Allowance: Annual Flows (ac- ft/yr) City Allowance: Annual Flows per Acre (ac-ft/ac) Prorated City Allowed Flow per Acre (ac-ft/ac) Area (ac) City Allowed Annual Flow (ac-ft) P8 Model Results Annual Flow (ac-ft) LS-2.1 28.96 8.4 0.290 28.87 8.374 42.1 1.454 LS-2.2 51.03 16.2 0.317 5.79 1.838 68.4 1.340 LS-2.4 57.39 23.9 0.416 2.71 1.129 41.5 0.723 Totals 37.37 11.341 1.383 39.983 55.304 6.760 2020 by On Site Area I.D. Area (ac) City Estimate: Annual Flows (ac- ft/yr) City Estimate: Annual Flows per Acre (ac-ft/ac) Area (ac) Annual Flows On Site (ac-ft) City Allowance: Annual Flows (ac- ft/yr) City Allowance: Annual Flows per Acre (ac-ft/ac) Prorated City Allowed Flow per Acre (ac-ft/ac) Area (ac) City Allowed Annual Flow (ac-ft) P8 Model Results Annual Flow (ac-ft) BC-A5.11 102.15 30.7 0.301 48.46 14.564 148.6 1.455 BC-A5.2 35.38 35.38 1.000 15.94 15.940 49.8 1.408 BC-A5.7 53.75 53.75 1.000 12.11 12.110 51.6 0.960 Totals 76.51 42.614 1.367 79.129 108.137 9.710 NONDEGREDATION SUMMARY Lake Susan Nondegredation Prorated Summary Bluff Creek Nondegredation Prorated Summary Developed Condition Site Subwatershed 1990 (Undeveloped Condition) by Subwatershed 1990 by Subwatershed on Site 2020 (Developed Condition) by Subwatershed Developed Condition Site 1990 (Undeveloped Condition) by Subwatershed 1990 by Subwatershed on SiteSubwatershed 2020 (Developed Condition) by Subwatershed Landform®, SensiblyGreen® and Site to Finish® are registered service marks of Landform Professional Services, LLC. L A N D F O R M 1 SCD14001 Landform® and Site to Finish® are registered service marks of Landform Professional Services., LLC APPENDIX L Lake Susan Use Attainability Assessment (UAA) Update, RPDCWD, 2013 Lake Susan Use Attainability Assessment (UAA) Update Prepared for: RILEY PURGATORY BLUFF CREEK WATERSHED DISTRICT Prepared by: WENCK ASSOCIATES, INC. 1800 Pioneer Creek Center P.O. Box 249 Maple Plain, Minnesota 55359-0249 (763) 479-4200 Wenck File #3057-01 JULY 2013 LL Table of Contents 1.0 INTRODUCTION ........................................................................................................... 1-1 3XUSRVH 3DVW6WXGLHVDQG$FWLYLWLHV 6XVDQDQG5LFH0DUVK/DNH8VH$WWDLQDELOLW\$QDO\VLV &LW\RI&KDQKDVVHQ1RQ'HJUDGDWLRQ3ODQ 8QLYHUVLW\RI0LQQHVRWD&DUS0DQDJHPHQWDQG1DWLYH6XEPHUJHG $TXDWLF9HJHWDWLRQ(VWDEOLVKPHQW6WXG\ &DUYHU&RXQW\6RLODQG:DWHU&RQVHUYDWLRQ'LVWULFW6XVDQ$QQ/XF\ 6XEZDWHUVKHG6WRUPZDWHU5HWURILW$VVHVVPHQW6$/6$ 53%&:':DWHU4XDOLW\0RQLWRULQJ 2.0 WATER QUALITY STANDARDS AND NUMERIC PHOSPHORUS TARGET .......................................................................................................................... 2-1 :DWHU4XDOLW\6WDQGDUGVIRU/DNH6XVDQ 3.0 WATERSHED AND LAKE CHARACTERIZATION ............................................... 3-1 2YHUYLHZ +LVWRU\RIWKH/DNHVDQGWKHLU:DWHUVKHGV /DQG8VH 6RLOVDQG*HRORJ\ &OLPDWRORJLFDO6XPPDU\ /DNH0RUSKRPHWU\ :DWHUVKHG+\GURORJ\ :DWHU4XDOLW\ 7RWDO3KRVSKRUXV &KORURSK\OOa 7UDQVSDUHQF\ 6KDOORZ/DNH(FRORJ\ )LVKHULHV $TXDWLF9HJHWDWLRQ 4.0 PHOSPHORUS SOURCE ASSESSMENT AND LAKE RESPONSE ...................... 4-1 0RGHOLQJ$SSURDFK :DWHUVKHG30RGHO /DNH5HVSRQVH0RGHO 1XWULHQW6RXUFH/RDGV T:\3057 RPBCWD\01 Lake Susan\Report\Lake Susan Report FINAL.docx III $WPRVSKHULF3KRVSKRUXV/RDG :DWHUVKHG3KRVSKRUXV/RDG ,QWHUQDO3KRVSKRUXV/RDG 6RXUFH6XPPDU\DQG&XUUHQW3KRVSKRUXV%XGJHW %$7+78%0RGHO)LW /DNH3KRVSKRUXV%XGJHWV 3KRVSKRUXV/RDG$OORFDWLRQV 7RWDO/RDGLQJ&DSDFLW\ /RDG$OORFDWLRQV /RDG5HGXFWLRQ 5.0 IMPLEMENTATION PLAN ......................................................................................... 5-1 0DQDJHPHQW$FWLYLW\6HOHFWLRQ $GDSWLYH0DQDJHPHQW /DNH6XVDQ:DWHUVKHG1XWULHQW0DQDJHPHQW 1HDU7HUP3URMHFWV 3URMHFW$OXP7UHDWPHQW±/DNH6XVDQ 3URMHFW/DNH6XVDQ3DUN3RQG(QKDQFHPHQW 3URMHFW/DNH6XVDQ+LOOV:HVW3DUN±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±0RQLWRULQJ ,PSOHPHQWDWLRQ3ODQ6XPPDU\DQG&RVWV ,PSOHPHQWDWLRQ3URMHFWV 0DQDJHPHQW6WUDWHJLHV 6.0 REFERENCES ................................................................................................................ 6-1 7.0 GLOSSARY ..................................................................................................................... 7-1 T:\3057 RPBCWD\01 Lake Susan\Report\Lake Susan Report FINAL.docx 1-2 1.2.2 City of Chanhassen Non-Degradation Plan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x 1HZGHYHORSPHQWRUUHGHYHORSPHQWDEVWUDFWLRQUHTXLUHPHQW x ,PSOHPHQWDWLRQRIDUHIRUHVWDWLRQSURJUDP x 5HWURILWWLQJYROXPHPDQDJHPHQW%03VZKHUHRSSRUWXQLWLHVDULVH x ,PSOHPHQWDWLRQRIVWUHDPUHVWRUDWLRQHURVLRQFRQWURODQGVKRUHOLQHUHVWRUDWLRQSURMHFWVWR PLWLJDWHYROXPHLPSDFWV 1.2.3 University of Minnesota Carp Management and Native Submerged Aquatic Vegetation Establishment Study 7KH8QLYHUVLW\RI0LQQHVRWD8RI0VLQFHKDVEHHQFRQGXFWLQJDVWXG\RQFDUS PDQDJHPHQWLQ/DNH6XVDQ6RUHQVRQ±$SSHQGL[$7KHVWXG\LVIRFXVHGRQLGHQWLI\LQJ FDUSUHFUXLWPHQWDQGPDQDJHPHQWDFWLYLWLHVWREULQJFDUSELRPDVVOHYHOVLQOLQHZLWKODNHV VLPLODUWR/DNH6XVDQ7KHJRDORIFDUSPDQDJHPHQWZDVWROLPLWQXWULHQWUHHQWUDLQPHQWDQG LPSURYHZDWHUFODULW\DVVRFLDWHGZLWKH[FHVVLYHFDUSSRSXODWLRQV$FWLYLWLHVFRPSOHWHGDVSDUWRI WKHVWXG\LQFOXGH x 7DJJLQJDQGWUDFNLQJRIFDUS x &ROOHFWLQJZDWHUTXDOLW\VDPSOHV x 5HPRYLQJFDUSLQWKHZLQWHURI,QVWDOOLQJDHUDWLRQLQ5LFH/DNH0DUVKWROLPLW ZLQWHUNLOORISDQILVK $VDUHVXOWRIWKHVHDFWLYLWLHVWKHFDUSSRSXODWLRQFRQWLQXHVWREHPDQDJHGODNHZDWHUFODULW\KDV LPSURYHGDQGPDFURSK\WHGHQVLW\KDVLQFUHDVHG&XUO\OHDISRQGZHHGDQG(XUDVLDQ ZDWHUPLOIRLOERWKLQYDVLYHVSHFLHVDUHSUHVHQWLQWKHODNHDQGWKHUHLVDGHVLUHWRSUHHPSWIXUWKHU HVWDEOLVKPHQWRIWKHVSHFLHVLQWKHODNH.QRSLN±$SSHQGL[% 7KH8RI0LVFXUUHQWO\HYDOXDWLQJWUDQVSODQWLQJQDWLYHVSHFLHVWRWKHODNHWRKHOSWKHLU SURSDJDWLRQDQGSUHHPSWIXUWKHUVSUHDGLQJRILQYDVLYHV$VRIWKLVUHSRUWWKH\DUHFRQWLQXLQJWR LPSOHPHQWDQGPRQLWRUWKHUHVXOWVRIWKHWUDQVSODQWHGQDWLYHYHJHWDWLRQ 1.2.4 Carver County Soil and Water Conservation District Susan, Ann, Lucy Subwatershed: Stormwater Retrofit Assessment (SALSA) ,QWKH&DUYHU&RXQW\6RLODQG:DWHU&RQVHUYDWLRQ'LVWULFW6:&'FRQGXFWHGDUHWURILW DQDO\VLVIRUWKH/DNH6XVDQZDWHUVKHG7KHVWXG\IRFXVHGRQLGHQWLI\LQJFRVWHIIHFWLYH UHWURILW%03VWRUHGXFH73ORDGVWRWKHODNH$:,16/$00PRGHOZDVGHYHORSHGWRFRPSOHWH WKHZDWHUVKHGORDGLQJDQDO\VLVDQGDVVHVWKHHIIHFWLYHQHVVRIWKHSURSRVHG%03V 7KHDQDO\VLVLGHQWLILHGLQVWDOOLQJLURQHQKDQFHGVDQGILOWUDWLRQ0LQQHVRWD)LOWHUDQGLQFUHDVLQJ WDUJHWHGSRQGYROXPHDVWKHWZRSULPDU\%03VIRULPSOHPHQWDWLRQ,QWKHVWXG\LWLGHQWLILHG T:\3057 RPBCWD\01 Lake Susan\Report\Lake Susan Report FINAL.docx 2-1 2.0 Water Quality Standards and Numeric Phosphorus Target 2.1 WATER QUALITY STANDARDS FOR LAKE SUSAN 2YHUWKHSDVW\HDUVZDWHUTXDOLW\JRDOVHVWDEOLVKHGIRU/DNH6XVDQKDYHFKDQJHG$WLPHOLQH DQGVXPPDU\WDEOHRIJRDOV7DEOHLVSURYLGHGEHORZ x 7KHRULJLQDO8$$HVWDEOLVKHGWKDW/DNH6XVDQVKRXOGDFKLHYHD³/HYHO,,´ZDWHUTXDOLW\ VWDQGDUGKDYLQJDSKRVSKRUXVFRQFHQWUDWLRQEHWZHHQWRJOUDQJH x 7KH'LVWULFW¶V2YHUDOO:DWHUVKHG0DQDJHPHQWSODQGHVLJQDWHG/DNH6XVDQDVD 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Lake Susan Water Goals Summary. Average June-September Values Total Phosphorus (µg/L) Chlorophyll-a (µg/L) Secchi Depth (m) /DNH6XVDQ8$$ddt 2YHUDOO0DQDJHPHQW3ODQddt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ake Susan\Report\Lake Susan Report FINAL.docx Figure 3-3. Lake Susan Watershed 2010 Land Use (Source: Metropolitan Council 2010). T:\3057 RPBCWD\01 Lake Susan\Report\Lake Susan Report FINAL.docx Figure 3-4. Lake Susan Watershed 2020 Land Use (Source: Metropolitan Council 2020). . T:\3057 RPBCWD\01 Lake Susan\Report\Lake Susan Report FINAL.docx 4.4.3 Load Reduction 7DEOHSUHVHQWVWKHUHVXOWVRIWKHORDGUHGXFWLRQFDOFXODWLRQIRU/DNH6XVDQ/DNH6XVDQ UHTXLUHVDUHGXFWLRQLQ73ORDGLQJWRPHHWWKHVKDOORZODNHJRDO$UHGXFWLRQHTXDWHV WRDQDQQXDO73ORDGUHGXFWLRQRISRXQGV7RDFKLHYHWKLVUHGXFWLRQWKHLQWHUQDOORDGQHHGV WREHORZHUHGSRXQGVZLWKWKHUHPDLQLQJSRXQGVFRPLQJIURPZDWHUVKHGUHGXFWLRQV Table 4-3. Load Allocation Summary for Lake Susan. Source Existing TP Load 1 Target TP Loading Recommended Load Reduction (lbs/year)(lbs/year)(lbs/year)% :DWHUVKHG 8SVWUHDP/DNHV $WPRVSKHUH ,QWHUQDO/RDG TOTAL 742 557 185 25% ([LVWLQJORDGLVWKHDYHUDJHIRUWKH\HDUVDQG Avienda 5/5/2023 Stormwater Management Plan – Phase 2 ii ii APPENDIX M MNDOT Wetland “As-Built” Plans