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Stormwater Quality and Quantity Management Plan 10-20-06
Stormwater Quality and Quantity Management Plan Autobahn Motorplex- Proposed Industrial Office Park Chanhassen, Minnesota STORMWATER QUALITY AND QUANTITY MANAGEMENT PLAN FOR Autobahn Motorplex Chanhassen, Minnesota PREPARED FOR Mutual Investments, LLc PREPARED BY October 20, 2006 ~~l4-S SUI?J" ~ . (('~ ". ~ $ tP ~ ~ Tt. ~ ~ . ~ G'~ ~~ ~J;'s ~\.~ SATHRE-BERGQUIST, INC. 150 SOUTH BROADWAY, WAYZATA, MN 55391 . (612) 476-6000 Preliminary Stormwater Quality and Quantity Management Plan for Autobahn Motorplex (Stormwater Routing) Chanhassen, Minnesota Prepared on October 20, 2006 Prepared for Mutual Investments, LLC 3615 Zircon Lane North Plymouth, MN 55446 Contact( s): Bruno Silikowski (phone) (612)-850-8398 Prepared by Sathre-Bergquist, Inc. 150 South Broadway Wayzata, MN 55371 Contact(s): Bob Payette (phone) (952) 476-6000 (fax) (952) 476-0104 http://www.sathre.com/ I hereby certify that this specification was prepared by me or under my direct supervision and that I am a duly registered Professional Engineer under the laws of the State of Minnesota. ~~ Date /tJ-/9-0(;' Reg. No. I >.:2-&/ ~'t~S s ult~ &~ - ~.lo $ ~ ~ ~ It ~ ~ - ~ G1'. ~~ ~I\>.s ~\..~ SATHRE-BERGQUIST, INC. 150 SOUTH BROADWAY, WAYZATA, MN 55391 ~ (952) 476-6000 I I I i --- Stormwater Quality and Quantity Management Plan Autobahn Motorplex- Proposed Industrial Office Park Chanhassen. Minnesota . Autobahn Motorplex Chanhassen. Minnesota STORMWATER QUALITY AND QUANTITY MANAGEMENT PLAN Prepared for Mutual Investments . Prepared by Sathre-Bergquist, Inc. Prepared on: October 20, 2006 CITY OF CHANHASSEN RECEIVED OCT 2 0 2006 CHANHASSEN PLANNING DEPT . . . . SATHRE-BERGQUIST, INC. 150 SOUTH BROADWAY, WAYZATA. MN 55391 . (612) 476-6000 TABLE OF CONTENTS Introduction Site Features Methodology Pre-Development Condition Post-Development Condition with Storage in NURP Ponds Nationwide Urban Runoff Program Pond Routing (TR-20) Hydrograph Description Summary 2- Year Storm Event 10-Year Storm Event 100-Year Storm Event 1 00- Year x 2 Storm Event NURP/ Phosphorus Removal Data APPENDIX Outlet Structures Soil Survey Map USGS Map Aerial PID Map (Aerial Photo with Contours) Existing Drainage Map Proposed Drainage Map Stormwater Quality and Quantity Management Plan Autobahn Motoplex- Proposed Industrial Office Park Chanhassen, Minnesota . SATHRE-BERGQUIST, INC. 150 SOUTH BROADWAY, WAYZATA, MN 55391 . (612) 476-6000 INTRODUCTION This report contains calculations of stormwater runoff for pre-development and post- development conditions for Autobahn Motorplex, a proposed industrial development in Chanhassen, MN. This report also includes information on NURP Pond volume and rate control, sedimentation basin volume and infiltration rates and outlet structure sizing. SITE FEATURES The proposed development boundary (38.77 acres) is located 1000 ft south of Coulter Blvd and directly west of Audobon Road. Of the 38.77 acres in the site boundary only 17.5 acres will actually be disturbed for a proposed NURP pond and industrial development. This site will be constructed in one phase. In this development, there is an individual wetland on the northern portion of the site with an adjacent pond. In this report, the existing conditions are modeled for only the areas within the site as seen in the existing drainage map (appendix). There is also a portion that will be left in its natural state consisting of mainly an upland tree area. This area is not modeled since it will be remain unchanged in post-development. In the post-development phase grading in the wetland will be limited. . METHODOLOGY The watersheds in question were modeled using techniques and data found in the following: Urban Hydroloay for Small Watersheds - Technical Release 20 by the Natural Resources Conservation Service. Curve numbers, Hydrologic Soils Groups, and 24 hr. precipitation values were obtained from this reference in addition to time of concentrations and runoff techniques. AutoCAD Land Development Desktop 2006 by AutoDesk. This program was used to generate the Drainage Area Maps in both the existing and proposed conditions. Rational Method pipe sizing based on the method contained in ASCE Manual and Reports of Enaineerina Practice # 37 - Desian and Construction of Sanitary Sewers and Storm Drains, by the American Society of Civil Engineers and the Water Pollution Control Federation, 1970. The Manning's formula was used for determining pipe capacities. Web Soil Survey 1.1 by USDA Natural Resources Conversation Service. Web Soil Survey was used to determine soil hydraulic group for this site. HydroCAD Stormwater Modelina 7.1 by HydroCAD Software Solutions LLC. 2005. This Program was used to generate runoff hydrographs for watershed areas, to determine discharge/stage/storage characteristics for the NURP ponds, and to perform flood routing and to combine the results of runoff hydrographs. . Stormwater Quality and Quantity Management Plan Autobahn Motoplex- Proposed Industrial Office Park Chanhassen, Minnesota . SATHRE-BERGQUIST, INC. 150 SOUTH BROADWAY. WAVZATA. MN 55391 . (612) 476-6000 The pre-developed condition has one drainage pattern as shown in the existing drainage map. The site is on higher land with flows directly into the adjacent wetland by overland flow. A curve number of 58 were used for the existing conditions modeling to reflect the meadow type cover and soil hydraulic class B taken from a soil survey for this area provided by the Natural Resources Conservation Service (see appendix). POST-DEVELOPMENT CONDITION WITH STORAGE IN NURP PONDS The proposed site design will provide for the collection of stormwater via a sub-surface drainage system and then convey it to a NURP Pond for treatment. A small portion of runoff will directly flow into the wetland. All stormwater will be treated prior to discharge into the wetlands to provide sufficient sediment removal. The proposed NURP will have an EOF at the high water level of 908.5 with riprap to avoid possible washout. NATIONWIDE URBAN RUNOFF PROGRAM The parameters of the NURP calculations are as follows . 2.5" Storm (NURP Standard) 98 for Impervious CN# (gravel road) 61 for Grass cover CN# (proposed grass cover-disturbed areas) 58 for Grass cover CN# (existing vegetation cover) Storage based on Plan Contours - 10: 1 Bench (1.0') Then - 4: 1 Slope for Pond The NURP Summary for the basins is as follows: Table 1.1 - NURP Information Basin NURP NURP Mean Pond 0.99 5.97 5.01 See NURP section of report for calculations on particular ponds. In calculations, pond surface area was subtracted from drainage area. . Stormwater Quality and Quantity Management Plan Autobahn Motoplex- Proposed Industrial Office Park Chanhassen, Minnesota . SATHRE-BERGQUIST, INC. 150 SOUTH BROADWAY. WAYZATA. MN 55391 . (612) 476-6000 POND ROUTING (TR-55) The parameters of the routing calculations are as follows: Manning's n grass = 0.24, concrete pipe = 0.013, DIP =.030 Utilizing Unit Hydrograph Theory A drainage map of proposed and existing conditions with runoff data showing drainage areas is included as part of this report. CURVE NUMBER ANALYSIS Hydraulic soil group B is the current assumed hydraulic soil class for existing conditions for Autobahn Motorplex site. Listed in Table 1.2 are the curve numbers for each drainage area and a description if applicable. Table 1.2 - Curve Number Data . Drainage Area CN Description WETLAND AREA 1 (Existing) 58 Meadow, non-grazed, HSG B WETLAND INFLOW (1) (Proposed) 58 Meadow, non-grazed, HSG B WETLAND INFLOW (2) (Proposed) 59 Meadow, non-grazed, HSG B Proposed Grass Cover HSG B, Weighted CN POND INFLOW (Proposed) 81 See NURP Worksheet . Stormwater Quality and Quantity Management Plan Autobahn Motoplex- Proposed Industrial Office Park Chanhassen, Minnesota . SATHRE-BERGQUIST, INC. 150 SOUTH BROADWAY. WAYZATA, MN 55391 . (612) 476-6000 HvdroQraph Descriptions Hydrograph P: POND SURFACE AREA - Precipitation directly into the surface area of the Pond. Area = 1.19 ac CN =100 Tc = .3 min Hydrograph P1: POND INFLOW - Inflow from proposed POND AREA into NURP Pond. Area = 19.35 ac CN =81 Tc = 13.6 min HydrographP-WET1: WETLAND INFLOW (1) - Direct runoff from WETLAND INFLOW (1) after development into wetland. Area = 5.75 ac CN =58 Tc = 24.5 min . HydrographP-WET2: WETLAND INFLOW (2) - Direct runoff from WETLAND INFLOW (2) after development into wetland. Area = 3.65 ac CN =59 Tc = 24.0 min HydrographWET-EX: EXISTING WETLAND- Direct Runoff from Wetland Area 1 before development into wetland. Area = 28.86 ac CN =58 Tc = 26.0 min Hydrograph2P: POND - Total Discharge out of Pond to wetland. Peak Outflow = 23.64 cfs Peak Inflow = 102.25 cfs Peak Elev=908.45 (100 yr) LINK WET: WETLAND- Total Routed flow from Wetland Inflow 1, Wetland Inflow 2 and the Pond Area after development into wetland. Peak Flow = 38.52 cfs . Stormwater Quality and Quantity Management Plan Autobahn Motoplex- Proposed Industrial Office Park Chanhassen, Minnesota . . . SATHRE-BERGQUIST, INC. 150 SOUTH BROADWAY. WAYZATA. MN 55391 . (612) 476-<iOOO Storm Water Quantitv ManaQement: Stormwater Discharoe: Proposed controlled flow out of Pond 2 year 1.74 cfs 1 00 year 1 00 year x2 40.56 cfs 10 year 10.56 cfs 23.65 cfs Runoff Comparison in existino and proposed conditions Existing Runoff Rate into Wetland Proposed Runoff Rate into Wetland 2 year 2.13 cfs 2.10 cfs 100 year x2 106.96 cfs 75.61 cfs 10 year 100 year 15.64 cfs 44.12 cfs 14.92 cfs 35.52 cfs Summary We were able to control the runoff rate for the site using our one NURP pond for sedimentation control, volume control and rate control. This pond will have a 5' outlet structure with a slotted weir wall to provide rate control for water exiting the system. Outlet pipes from the ponds will have rip-rap to provide energy dissipation for the stormwater. Also, the weir controls in all rain events thereby adding additional energy dissipation as it passes through the outlet structure. An EOF is provided for the pond avoiding any potential flooding issues. The stormwater exiting Autobahn Motor Complex is lower then predevelopment conditions and meets the requirement for quantity and quality management. Stormwater Quality and Quantity Management Plan Autobahn Motoplex- Proposed Industrial Office Park Chanhassen, Minnesota . . . ~, POND SURFAC ~ET.E~ EXISTING WETLAND ~ ARE/JiJ7 INFLOW M E.~1!' POND ~ WETLAND I FLOW(1) WE ~ET-(2): AND INFLOW(2) WETLAND EatBg~ Drainage Diagram for Audobon MotClf Complex Prepared by Sathre-Bergquist, INC;. -1 O/20/20~6 . Hy(JfOC/~D@ 7. "I 0 sin 003565 @ 2005 HydroCAD So'Hware Solut~ons LlC . . . Audobon Motor Complex - Preliminary Type II 24-hr 2- YEAR Rainfal/=2.80" Page 2 1 0/20/2006 Audobon Motor Complex Prepared by Sathre-Bergquist, INC. HydroCAD@ 7.10 sIn 003665 @ 2005 HydroCAD Software Solutions LLC Time span=0.00-60.00 hrs, dt=O.01 hrs, 6001 points Runoff by SCS TR-20 method, UH=SCS Reach routing by Sim-Route method - Pond routing by Sim-Route method \ Subcatchment P: POND SURFACE AREA Runoff Area=1.190 ac Runoff Depth=2.8011 Flow Length=2551 Tc=0.3 min CN=100 Runoff=5.61 cfs 0.278 af Subcatchment P1: POND INFLOW Runoff Area=19.350 ac Runoff Depth=1.1611 Flow Length=1 ,0591 Tc=13.6 min CN=81 Runoff=30.29 cfs 1.873 af Subcatchment WET-(1): WETLAND INFLOW(1) Runoff Area=5.750 ac Runoff Depth=0.21II Flow Length=8691 Tc=24.5 min CN=58 Runoff=0.44 cfs 0.102 af Subcatchment WET-(2): WETLAND INFLOW(2) Runoff Area=3.650 ac Runoff Depth=0.2411 Flow Length=3891 Tc=24.0 min CN=59 Runoff=0.36 cfs 0.072 af Subcatchment WET-EX: EXISTING WETLAND Runoff Area=28.860 ac Runoff Depth=0.21II Flow Length=9261 Tc=26.0 min CN=58 Runoff=2.13 cfs 0.511 af Pond 2P: POND Peak Elev=906.991 Storage=31 0,332 cf Inflow=30.93 cfs 2.151 af Primary=1. 74 cfs 2.015 af Secondary=O.OO cfs 0.000 af Outflow=1. 74 cfs 2.015 af Link WET: WETLAND Inflow=2.10 cfs 2.189 at Primary=2.10 cfs 2.189 af Total Runoff Area = 58.800 ac Runoff Volume = 2.837 af Average Runoff Depth = 0.5811 . i I --~ Audobon Motor Complex . Prepared by Sathre-Bergquist, INC. HydroCAD@ 7.10 sIn 003665 @ 2005 HydroCAD Software Solutions LLC Audobon Motor Complex - Preliminary Type II 24-hr 2- YEAR Rainfall=2.80" Page 3 1 0/20/2006 Subcatchment P: POND SURFACE AREA [49] Hint: Tc<2dt may require smaller dt Runoff 5.61 cfs @ 11.90 hrs, Volume= 0.278 af, Depth= 2.80" = Runoff by SCS TR-20 method, UH=SCS, Time Span= 0.00-60.00 hrs, dt= 0.01 hrs Type II 24-hr 2- YEAR Rainfall=2.8011 Area (ac) eN Description 1 . 1 90 1 00 Tc Length (min) (feet) 0.3 255 Slope Velocity Capacity Description (ft/ft) (ft/sec) (cfs) 12.7 lake or Reservoir, POND Mean Depth= 5.011 . Subcatchment P: POND SURFACE AREA Hydrograph 6 Runoff=5.61 cfs ~ 11,.90 hr~ Type: 11:24-hr ~-YEA~ Ra'infal,I=2.80 :1 - R~noff Ar~a=1 ,.190 at; Runoff Volume=0.278 af " ; .: I 'Runoff ~epth=2.80:1 Flow ~ength=25~1 :Tc=0.3 mitl CN=100 5- 4 en ~ ,,~ 3 0 u: 2- o · 'I I I I' , . 1 ' .. , 'I' " "" . o 2 4 6 8 1 0 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48 50 52 54 56 58 60 Time (hours) . I . Runoff ~ ~ Audobon Motor Complex - Preliminary Audobon Motor Complex Type II 24-hr 2- YEAR Rainfall=2.8C'" . Prepared by Sathre-Bergquist, INC. Page j4 HydroCAD@ 7.10 sIn 003665 @ 2005 HydroCAD Software Solutions LLC 10/20/20015 Subcatchment P1: POND INFLOW Runoff = 30.29 cfs @ 12.06 hrs, Volume= 1.873 af, Depth= 1.16" Runoff by SCS TR-20 method, UH=SCS, Time Span= 0.00-60.00 hrs, dt= 0.01 hrs Type II 24-hr 2- YEAR Rainfall=2.80" Area (ac) 11 .000 3.830 4.520 19.350 CN Description 98 61 >750/0 Grass cover, Good, HSG B (UNGRADED) 58 Meadow, non-grazed, HSG B (UNGRADED) 81 Weighted Average Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 11.5 123 0.0610 0.2 Sheet Flow, GRASS Grass: Dense n= 0.240 P2= 2.80" 0.8 61 0.0260 1.3 Sheet Flow, CURB . Smooth surfaces n= 0.011 P2= 2.80" 1.3 875 0.0375 11.5 20.34 Circular Channel (pipe), RCP Diam= 18.0" Area= 1.8 sf Perim= 4.71 r== 0.381 n= 0.013 Concrete pipe, straight & clean 13.6 1 ,059 Total . . . . Audobon Motor Complex Prepared by Sathre-Bergquist, INC. HydroCAD@ 7.10 sIn 003665 @ 2005 HydroCAD Software Solutions LLC Audobon Motor Complex - Preliminary Type //24-hr 2- YEAR Rainfa//=2.80" Page 5 1 0/20/2006 32 30 28 26 24 22 _ 20 en ~ 18 ~ 16 u:: 14 12 10 8 6 4 2 o I . .. . 024 6 Subcatchment P1: POND INFLOW Hydrograph .- ... . - -- Runoff=30.29 cfs @12.06hrs -- I - -. -!": Type 11-24-hr 2-YEA~- R a i nfa 11::;2.80,11 - -- Runoff Area=19.3'SO a-c - R-unoff-Voiu'me~-'1.813--af - I : Runoff Depth;::;1.1611 _ Flow Length=1,059- T-c=13.6 min CN=81 -- , I · ... i . i II I . 't .. II . it j, I I . I if ... r..I' I" j I .. t I ,. 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48 50 52 54 56 58 60 Time (hours) I_ Runoff I Audobon Motor Complex - Preliminar)f Audobon Motor Complex Type II 24-hr 2- YEAR Rainfall=2.80" . Prepared by Sathre-Bergquist, INC. Page (i HydroCAD@ 7.10 sin 003665 @ 2005 HydroCAD Software Solutions LLC 1 O/20/200E~ Subcatchment WET-(1): WETLAND INFLOW(1) Runoff 0.44 cfs @ 12.31 hrs, Volume= = 0.102 af, Depth= 0.2111 Runoff by SCS TR-20 method, UH=SCS, Time Span= 0.00-60.00 hrs, dt= 0.01 hrs Type II 24-hr 2- YEAR Rainfall=2.8011 Area (ac) 5.750 CN Description 58 Meadow, non-grazed, HSG B Tc Length Slope Velocity Capacity Description (min) (feet) ( ft/ft) (ft/sec) (cfs) 21.1 300 0.0800 0.2 Sheet Flow, GRASS Grass: Dense n= 0.240 P2= 2.8011 3.4 569 0.0343 2.8 Shallow Concentrated Flow, Grassed Waterway Kv= 15.0 fps 24.5 869 Total Hydrograph Subcatchment WET-(1): WETLAND INFLOW(1) . 0.48 0.46 0.44 0.42 0.4 0.38 0.36 0.34 0.32 0.3 en 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 o o III Runoff' RYr'-Qff;::Q~.44 cfs @ .12~31 hrs .. ryp~ 1.1. ~4-~_r 2.~,(I;A~ Rainfall=2.S011 Runoff Area=5.750. ac - . - - - - - -- - -- - Runoff Volume=0.1 02 af . -. J:lunoff- Depth=O.21II Flow Length:;:S'S.91 Tc=24..5 min. CN=5S' - - - . ,., .. I' ..,... .. . I .,'" .. . ,., , "1 ' I'" 2 4 6 8 1 0 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48 50 52 54 56 58 60 Time (hours) . Audobon Motor Complex . Prepared by Sathre-Bergquist, INC. HydroCAD@ 7.10 sin 003665 @ 2005 HydroCAD Software Solutions LLC Audobon Motor Complex - Preliminary Type II 24-hr 2- YEAR Rainfall=2.80" Page 7 1 0/20/2006 Subcatchment WET-(2): WETLAND INFLOW(2) Runoff = 0.36 cfs @ 12.29 hrs, Volume= 0.072 af, Depth= 0.2411 Runoff by SCS TR-20 method, UH=SCS, Time Span= 0.00-60.00 hrs, dt= 0.01 hrs Type II 24-hr 2- YEAR Rainfall=2.8011 Area (ac) 3.010 0.640 3.650 CN Description 58 Meadow, non-grazed, HSG B 61 >750/0 Grass cover, Good, HSG B 59 Weighted Average Tc Length Slope Velocity Capacity Description (min) (feet) ( ft/ft) (ft/sec ) (cfs) 23.7 300 0.0600 0.2 Sheet Flow, GRASS Grass: Dense n= 0.240 P2= 2.8011 0.3 89 0.1350 5.5 Shallow Concentrated Flow, . Grassed Waterway Kv= 15.0 fps 24.0 389 Total Subcatchment WET-(2): WETLAND INFLOW(2) Hydrograph 0.4 0.38 0.36 0.34 - 0.32 0.3 0.28 0.26 0.24 U) ~ 0.22_ 3: 0.2 o . u: 0.18 ~ 0.16 - 0.14 0.12 0.1 0.08 0.06 0.04 0.02 o o I . Runoff I Runoff=O.36 cfs @ 12~29 hrs type_II. 24~-_hr 2-YEAR Rainfall=2~.80~1 _Runoff. Area~3.6_50- ac- RunoffVolume-=O.072 af Runoff Depth=O.24.11 Flow Leng~th=38~1 Tc=24.0 min CN=59 . . . .. . . I ... . I . I" 2 4 6 8 1 0 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48 50 52 54 56 58 60 Time (hours) Audobon Motor Complex - Preliminar:v Audobon Motor Complex Type II 24-hr 2- YEAR Rainfall=2.80,11 . Prepared by Sathre-Bergquist, INC. Page ~3 HydroCAD@ 7.10 sin 003665 @ 2005 HydroCAD Software Solutions LLC 10/20/200fi Subcatchment WET-EX: EXISTING WETLAND Runoff = 2.13 cfs @ 12.34 hrs, Volume= 0.511 af, Depth= 0.2111 Runoff by SCS TR-20 method, UH=SCS, Time Span= 0.00-60.00 hrs, dt= 0.01 hrs Type II 24-hr 2- YEAR Rainfall=2.8011 Area (ac) 28.860 eN Description 58 Meadow, non-grazed, HSG B Tc Length Slope Velocity Capacity Description (min) ( feet) ( ft/ft ) (ft/sec ) (cfs) 22.9 300 0.0650 0.2 Sheet Flow, GRASS Grass: Dense n= 0.240 P2= 2.80" 3.1 626 0.0500 3.4 Shallow Concentrated Flow, Grassed Waterway Kv= 15.0 fps 26.0 926 Total Hydrograph Subcatchment WET-EX: EXISTING WETLAND . 2 U) ~ 3: o u:: I_ Runoff I :Runoff=2.13;cfs @ 12.-34 hrs Type II :24-hr 2-YEA~ Rainfall=2.80;1 Runoff .Are~=28:.860 a~ Runoff Volurtte=O.511 a;f !Run~ff Qep~h=~._21 :1 Flow ~ength=9261 Tc=26.0 min CN=58 o .. I' I' I' . I . I'" I I o 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48 50 52 54 56 58 60 Time (hours) . . Audobon Motor Complex Prepared by Sathre-Bergquist, INC. HydroCAD@ 7.10 sIn 003665 @ 2005 HydroCAD Software Solutions LLC Audobon Motor Complex - Preliminary Type II 24-hr 2- YEAR Rainfall=2.80" Page 9 1 0/20/2006 Pond 2P: POND I ntlow Area = Inflow = Outflow = Primary = Secondary = 20.540 ac, Inflow Depth = 1.2611 for 2- YEAR event 30.93 cfs @ 12.06 hrs, Volume= 2.151 af 1.74 cts @ 13.90 hrs, Volume= 2.015 at, Atten= 940/0, Lag= 110.4 mi 1.74 cts @ 13.90 hrs, Volume= 2.015 af 0.00 cfs @ 0.00 hrs, Volume= 0.000 at Routing by Sim-Route method, Time Span= 0.00-60.00 hrs, dt= 0.01 hrs Starting Elev= 906.00' Surf.Area= 51 ,912 sf Storage= 256,706 cf Peak Elev= 906.99. @ 13.90 hrs Surf.Area= 56,465 sf Storage= 310,332 cf (53,626 cf above ste Plug-Flow detention time= (not calculated: initial storage excedes outflow) Center-ot-Mass det. time= 549.6 min ( 1 ,382.4 - 832.8 ) Volume Invert Avail.Storage Storage Description #1 897.00. 496,727 ct Custom Stage Data (Irregular) Listed below (Recalc) Elevation Surf.Area Perim. Inc.Store Cum.Store Wet.Area . (feet) ( sq-ft) (feet) (cubic-feet) (cubic-feet) ( sq-ft) 897.00 0 0.0 0 0 0 898.00 17,063 702.0 5,688 5,688 39,218 900.00 23, 171 823.0 40,079 45,766 53,981 902.00 30,413 919.3 53,420 99,186 67,446 904.00 37,850 1 ,008.5 68, 128 167,314 81 ,265 906.00 51 ,912 1,152.3 89,393 256,706 106,086 908.00 61 ,309 1 ,206.3 113,091 369,797 116,492 908.50 63,774 1 ,214.0 31 ,269 401 ,066 118,094 910.00 63,774 1 ,214.0 95,661 496,727 119,915 Device Routing Invert Outlet Devices #1 Secondary 908.50. 10.00. W x 0.50. H x 25.0. long RIP RAP OVERFLOW Ke= 1.000 Outlet Invert= 905.30. S= 0.1280.t Cc= 0.900 n= 0.035 #2 Primary 905.20. 27.0" x 30.0. long OUTLET PIPE RCP, mitered to conform to fill, Ke= 0.700 Outlet Invert= 904.50. S= 0.0233 .t Cc= 0.900 n= 0.013 Concrete pipe, straight & clean #3 Device 2 906.00. 5. SLOTTED WIER, C= 2.62 . Head (feet) 0.00 1 .00 1 .00 2.50 2.50 Width (feet) 0.40 0.75 5.00 5.00 0.00 #4 Device 3 901.00. 27.0" x 32.0. long INLET PIPE CMP, projecting, no headwall, Ke= 0.900 I I I I I I I I I I I I ! ___J Audobon Motor Complex - Preliminar~1 Audobon Motor Complex Type II 24-hr 2- YEAR Rainfall=2.80" Prepared by Sathre-Bergquist, INC. Page 10 . HydroCAD@ 7.10 sin 003665 @ 2005 HydroCAD Software Solutions LLC 1 O/20/200€~ Outlet Invert= 902.00. S= -0.0313.t Cc= 0.900 n= 0.030 Corrugated metal 908.50. 5.0" Horiz. Top Grate Limited to weir flow C= 0.600 #5 Device 2 Primary OutFlow Max=1.74 cfs @ 13.90 hrs HW=906.99. TW=O.OO. (Dynamic Tailwater) L2=OUTLET PIPE (Passes 1.74 cfs of 13.63 cfs potential flow) t3=SI SLOTTED WIER (Weir Controls 1.74 cfs@3.1fps) ~=INLET PIPE (Passes 1.74 cfs of 15.04 cfs potential flow) 5=Top Grate (Controls 0.00 cfs) Secondary OutFlow Max=O.OO cfs @ 0.00 hrs HW=906.00. TW=O.OO. (Dynamic Tailwater) L1=RIP RAP OVERFLOW (Controls 0.00 cfs) Pond 2P: POND Hydrograph 906.95 906.9 906.85 906.8 906.75 906.7 906.65 _ 906.6 Q) Q) 906.55 ~ 906.5 .~ 906.45 co > 906.4 .! 906.35 w 906.3 906.25 906.2 906.15 906.1 906.05 906 34 32 30 28 26 . 24 22 U) 20 ~ 18 ~ 16 u:: 14 12 10 8 6 4 Inflow Area=2-0~540 ac Inflow=30-.93 cfs @ 1'2.06 hrs Olitflow-=1. 74 cfs~ @ 1c'3-.90 h~s -Prfm~~y=~1!Z4 ~f_s--~-13:.~Q hrs -; Secondary::O.OO cfs_@ 0.00 hrs _ Peak Elev=906.99~ - Storage=3tO,332 cf ,. . . . I . 8 1 0 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48 50 52 54 56 58 60 Time (hours) . Elevation . Inflow o Outflow . Primary III Secondary . . Audobon Motor Complex . Prepared by Sathre-Bergquist, INC. HydroCAD@ 7.10 sin 003665 @ 2005 HydroCAD Software Solutions LLC Audobon Motor Complex - Preliminary Type //24-hr 2- YEAR Rainfa//=2.80" Page 11 1 0/20/2006 Pond 2P: POND Stage-Discharge 910 909 908 907 I ~!:~SJ!~~s:~~~{IE~1 I 'l~m[~Eill PU?(I 906 ~ 905 Q) :t:, 904 r:: .2 m 903 > Q) W 902 ,I ~.~~~~'~:1~~1; __ 901 900- 899 898 . 897 o 5 10 15 20 25 30 35 40 45 50 Discharge (cfs) Pond 2P: POND Stage-Area-Storage Surface/HorizontallWetted Area (sq-ft) 0 5,000 10,000 15,000 20,000 25,000 30,000 35,000 40,000 45,000 50,000 55,000 60,?00 . , I 910 909 908 907 906 ~ 905 Q) :t:, 904 r:: 0 ~ 903 > Q) 902 W 901 900 899- . 898 897 0 100,000 200,000 300,000 Storage (cubic-feet) 400,000 Audobon Motor Complex - Preliminar~{ Audobon Motor Complex Type II 24-hr 2- YEAR Rainfall=2.80" Prepared by Sathre-Bergquist, INC. Page 1~~ . HydroCAD@ 7.10 sin 003665 @ 2005 HydroCAD Software Solutions LLC 10/20/200€i Link WET: WETLAND Inflow Area = Inflow = Primary = 29.940 ac, Inflow Depth> 0.8811 for 2- YEAR event 2.10 cfs @ 12.38 hrs, Volume= 2.189 af 2.10 cfs @ 12.39 hrs, Volume= 2.189 af, Atten= 00/0, Lag= ().6 min Primary outflow = Inflow, Time Span= 0.00-60.00 hrs, dt= 0.01 hrs Link WET: WETLAND Hydrograph 2 Inflow Area=29.940ac Inflow=2~ 10 cfs @ 12.38 hrs Prirha'ry=2.10 cfs @ 12.39 hrs ~ ~ . :: o u::: 1 o . . . . . . . I o 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48 50 52 54 56 58 60 Time (hours) . Audobon Motor Complex . Prepared by Sathre-Bergquist, INC. HydroCAD@ 7.10 sin 003665 @ 2005 HydroCAD Software Solutions LLC Audobon Motor Complex - Preliminary Type 1124-hr 10- YEAR Rainfall=4.20" Page 13 1 0/20/2006 . . Time span=0.00-60.00 hrs, dt=0.01 hrs, 6001 points Runoff by SCS TR-20 method, UH=SCS Reach routing by Sim-Route method - Pond routing by Sim-Route method Subcatchment P: POND SURFACE AREA Runoff Area=1.190 ac Runoff Depth=4.20" Flow Length=2551 Tc=0.3 min CN=100 Runoff=8.41 cfs 0.416 af Subcatchment P1: POND INFLOW Runoff Area=19.350 ac Runoff Depth=2.29" Flow Length=1 ,0591 Tc=13.6 min CN=81 Runoff=60.15 cfs 3.694 af Subcatchment WET-(1): WETLAND INFLOW(1) Runoff Area=5.750 ac Runoff Depth=O.7611 Flow Length=8691 Tc=24.5 min CN=58 Runoff=3.27 cfs 0.363 af Subcatchment WET-(2): WETLAND INFLOW(2) Runoff Area=3.650 ac Runoff Depth=0.81II Flow Length=3891 Tc=24.0 min CN=59 Runoff=2.32 cfs 0.246 af Subcatchment WET-EX: EXISTING WETLAND Runoff Area=28.860 ac Runoff Depth=0.76" Flow Length=9261 Tc=26.0 min CN=58 Runoff=15.64 cfs 1.822 af Pond 2P: POND Peak Elev=907.60' Storage=345,911 cf Inflow=61.10 cfs 4.110 af Primary=1 0.56 cfs 3.964 af Secondary=O.OO cfs 0.000 af Outflow=1 0.56 cfs 3.964 af link WET: WETLAND Inflow=14.92 cfs 4.573 af Primary=14.92 cfs 4.573 af Total Runoff Area = 58.800 ac Runoff Volume = 6.542 af Average Runoff Depth = 1.3411 I ~ Audobon Motor Complex - Preliminar~1 Audobon Motor Complex Type 1124-hr 10- YEAR Rainfall=4.20" Prepared by Sathre-Bergquist, INC. Page 14 . HydroCAD@ 7.10 sin 003665 @ 2005 HydroCAD Software Solutions LLC 10/20/200Ei Subcatchment P: POND SURFACE AREA [49] Hint: Tc<2dt may require smaller dt Runoff = 8.41 cfs @ 11.90 hrs, Volume= 0.416 af, Depth= 4.20" Runoff by SCS TR-20 method, UH=SCS, Time Span= 0.00-60.00 hrs, dt= 0.01 hrs Type II 24-hr 10- YEAR Rainfall=4.2011 Area (ac) eN Description 1 . 1 90 1 00 Tc Length (min) (feet) 0.3 255 Slope Velocity Capacity Description (ft/ft) (ft/sec) (cfs) 12.7 Lake or Reservoir, POND Mean Depth= 5.011 Subcatchment P: POND SURFACE AREA Hydrograph . 9 I [J Runoff I 8 Runoff=8.41 cfs@1--l.90 hrs- ..,Type _tl 2:4~hr 1 O~Y_EA8 Rainfall=4.2011 Runoff A'rea=1.190 'ac Runoff Volume=0.416 a.f RlJn~ff lJept~=4.20~1 Flow ~ength=2551 :Tc=O.3 min .CN=.100 7 6 (i) ~ 5 == o u: 4 3 2 o I . . I I' . . I . . . . o 2 4 6 8 1 0 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48 50 52 54 56 58 60 Time (hours) . Audobon Motor Complex - Preliminary Audobon Motor Complex Type 1/24-hr to-YEAR Rainfa//=4.20" . Prepared by Sathre-Bergquist, INC. Page 15 HydroCAD@ 7.10 sin 003665 @ 2005 HydroCAD Software Solutions LLC 10/20/2006 Subcatchment P1: POND INFLOW Runoff = 60.15 cfs @ 12.06 hrs, Volume= 3.694 at, Depth= 2.29" Runoff by SCS TR-20 method, UH=SCS, Time Span= 0.00-60.00 hrs, dt= 0.01 hrs Type II 24-hr 1 0- YEAR Rainfall=4.20" Area (ac) 11 .000 3.830 4.520 19.350 eN Description 98 61 >750/0 Grass cover, Good, HSG B (UNGRADED) 58 Meadow, non-grazed, HSG B (UNGRADED) 81 Weighted Average Tc Length Slope Velocity Capacity Description (min) (feet) ( ft/ft) (ft/sec ) (cfs) 11.5 123 0.0610 0.2 Sheet Flow, GRASS Grass: Dense n= 0.240 P2= 2.80" 0.8 61 0.0260 1.3 Sheet Flow, CURB . Smooth surfaces n= 0.011 P2= 2.80" 1.3 875 0.0375 11.5 20.34 Circular Channel (pipe), RCP Diam= 18.0" Area= 1.8 sf Perim= 4.71 r= 0.381 n= 0.013 Concrete pipe, straight & clean 13.6 1 ,059 Total . Audobon Motor Complex - Preliminar~1 Audobon Motor Complex Type 1124-hr 10- YEAR Rainfall=4.20" Prepared by Sathre-Bergquist, INC. Page 16 . HydroCAO@ 7.10 sin 003665 @ 2005 HydroCAD Software Solutions LLC 10/20/200€3 Hydrograph Subcatchment P1: POND INFLOW 65 60 55 50 45 40 U) ~ 35 :: if: 30 25 20 15 10 5 O. 0 2 4 I_ Runoff I Runoff=~9~1S cf~.~.. ~~..Q~ .,",r~ .. Type 1..1 2~~hr 10-Y~AR Rainfall=4.2011 - -- - -- ,. Runoff Area=19.350 a~ Runoff Vo'lume=3'-S94 af Runoff Depth=2.2911 Flow Length=1,059- Tc=13.6 mill CN=81 1" 'I I t I' ,.. I I I.." I ,. * . 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48 50 52 54 56 58 60 Time (hours) . . Audobon Motor Complex . Prepared by Sathre-Bergquist, INC. HydroCAD@ 7.10 sIn 003665 @ 2005 HvdroCAD Software Solutions LLC Audobon Motor Complex - Preliminary Type 1124-hr 10- YEAR Rainfall=4.20" Page 17 1 0/20/2006 . . Subcatchment WET-(1): WETLAND INFLOW(1) Runoff 3.27 cfs @ 12.22 hrs, Volume= 0.363 at, Depth= 0.7611 = Runoff by SCS TR-20 method, UH=SCS, Time Span= 0.00-60.00 hrs, dt= 0.01 hrs Type II 24-hr 1 0- YEAR Rainfall=4.2011 Area (ac) 5.750 CN Description 58 Meadow, non-grazed, HSG B Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec ) (cts) 21.1 300 0.0800 0.2 Sheet Flow, GRASS Grass: Dense n= 0.240 P2= 2.8011 3.4 569 0.0343 2.8 Shallow Concentrated Flow, Grassed Waterway Kv= 15.0 tps 24.5 869 Total Subcatchment WET-(1): WETLAND INFLOW(1) Hydrograph I . Runoff I 3.27 cfs @ 12.22 hrs 3 Runoff=3.27 ,cf~ ~ 12.22 hr~ Type II 2:4-~r 10-YEAR Ra,i nfa 1:1=4.20 II Runoff Ar~a=5. 750 ac Runoff Volume=0.363 a'f : , Runoff Depth=0.76~1 : I .: Flow ~eng~h=86~1 Tc=24.5 min I ' CN=58 ~ 2- ~ :: o u: o. . . 'I' .. ,. I .. I I ". . o 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48 50 52 54 56 58 60 Time (hours) I I I . I I Audobon Motor Complex - Preliminar~v Audobon Motor Complex Type 1124-hr 10- YEAR Rainfall=4.20,11 Prepared by Sathre-Bergquist, INC. Page 113 e HydroCAO@ 7.10 sIn 003665 @ 2005 HydroCAD Software Solutions LLC 10/20/200f3 Subcatchment WET-(2): WETLAND INFLOW(2) Runoff = 2.32 cfs @ 12.21 hrs, Volume= 0.246 af, Depth= 0.8111 Runoff by SCS TR-20 method, UH=SCS, Time Span= 0.00-60.00 hrs, dt= 0.01 hrs Type II 24-hr 1 0- YEAR Rainfall=4.20" Area (ac) 3.010 0.640 3.650 eN Description 58 Meadow, non-grazed, HSG B 61 >750/0 Grass cover, Good, HSG B 59 Weighted Average Tc Length Slope Velocity Capacity Description (min) (feet) ( ft/ft) (ft/sec ) (cfs) 23.7 300 0.0600 0.2 Sheet Flow, GRASS Grass: Dense n= 0.240 P2= 2.8011 0.3 89 0.1350 5.5 Shallow Concentrated Flow, Grassed Waterway Kv= 15.0 fps - . 24.0 389 Total Subcatchment WET-(2): WETLAND INFLOW(2) Hydrograph 2 10 Runoff ~ :: o u:: Runoff=2.32 cfs @ 12.21 hrs Type II 24-hr 10-V-EAR Ra:infall=4.20~1 Runoff Area=3.650 ac ,Runoff Volume=O.246 af Runoff Depth=O.81II Flow Length=3891 Tc=24.0 min CN=59 ~ ~ o . I' . . ... I I". I .. o 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48 50 52 54 56 58 60 Time (hours) . . Audobon Motor Complex Prepared by Sathre-Bergquist, INC. HydroCAD@ 7.10 sin 003665 @ 2005 HydroCAD Software Solutions LLC Audobon Motor Complex - Preliminary Type 1124-hr 10- YEAR Rainfall=4.2011 Page 19 1 0/20/2006 Subcatchment WET-EX: EXISTING WETLAND Runoff = 15.64 cfs @ 12.25 hrs, Volume= 1.822 af, Depth= 0.7611 Runoff by SCS TR-20 method, UH=SCS, Time Span= 0.00-60.00 hrs, dt= 0.01 hrs Type II 24-hr 1 0- YEAR Rainfall=4.20" Area (ac) 28.860 CN Description 58 Meadow, non-grazed, HSG B Tc Length Slope Velocity Capacity Description (min) (feet) ( ft/ft) (ft/sec) (cfs) 22.9 300 0.0650 0.2 Sheet Flow, GRASS Grass: Dense n= 0.240 P2= 2.8011 3.1 626 0.0500 3.4 Shallow Concentrated Flow, Grassed Waterway Kv= 15.0 fps 26.0 926 Total . Hydrograph Subcatchment WET-EX: EXISTING WETLAND 17 16 15 14 13 12 11 U) 10 ~ 9 ~ 0 8 u: 7 6 5 - 4 3 2 0 . . 0 2 4 6 . I . Runoff I Runoff::15t64 -'cfs @-1'~.25 h-rs Type:ll ~4-h~ 1 0- YE,A~ Rainfall=4.2011 .' R~noff, Area=28.8'60 ac Runoff--Volu'me='1.822'af ~;- ~~~o~f ~epth=~O. ~~~II_' .. : _~, F'low l-e,ngth;::926I " Tc=26.0 Olin -- C-N::58 ,. ,.,. I .... I 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48 50 52 54 56 58 60 Time (hours) Audobon Motor Complex - Preliminar~1 Audobon Motor Complex Type //24-hr to-YEAR Rainfa//=4.20" Prepared by Sathre-Bergquist, INC. Page 20 . HydroCAD@ 7.10 sIn 003665 @ 2005 HydroCAD Software Solutions LLC 1 O/20/200f~ Pond 2P: POND Inflow Area = Inflow = Outflow = Primary = Secondary = 20.540 ac, Inflow Depth = 2.40" for 10- YEAR event 61.10 cfs @ 12.06 hrs, Volume= 4.110 af 10.56 cfs @ 12.47 hrs, Volume= 3.964 af, Atten= 830/0, Lag= 24.7 min 10.56 cfs @ 12.47 hrs, Volume= 3.964 af 0.00 cfs @ 0.00 hrs, Volume= 0.000 af Routing by Sim-Route method, Time Span= 0.00-60.00 hrs, dt= 0.01 hrs Starting Elev= 906.00. Surf.Area= 51,912 sf Storage= 256,706 cf Peak Elev= 907.60. @ 12.47 hrs Surf.Area= 59,387 sf Storage= 345,911 cf (89,205 cf cibove stc Plug-Flow detention time= (not calculated: initial storage excedes outflow) Center-of-Mass det. time= 361.7 min ( 1,180.6 - 819.0 ) Volume Invert Avail.Storage Storage Description - #1 897.00. 496,727 cf Custom Stage Data (Irregular) Listed below (Recalc) Elevation Surf.Area Perim. Inc.Store Cum.Store Wet.An3a (feet) ( sq-ft) (feet) ( cubic-feet) (cubic-feet) (Sq-m. 897.00 0 0.0 0 0 0 898.00 17,063 702.0 5,688 5,688 39,2'18 900.00 23, 171 823.0 40,079 45,766 53,9~31 902.00 30,413 919.3 53,420 99,186 67,4~~6 904.00 37,850 1 ,008.5 68, 128 167,314 81 ,2'35 906.00 51,912 1,152.3 89,393 256,706 1 06,0~36 908.00 61 ,309 1 ,206.3 113,091 369,797 116,4~~2 908.50 63,774 1 ,214.0 31 ,269 401 ,066 118,0~~4 91 0.00 63,774 1 ,214.0 95,661 496,727 119,9.15 Device Routing Invert Outlet Devices #1 Secondary 908.50. 10.00. W X 0.50. H x 25.0. long RIP RAP OVERFLOW Ke= 1.000 Outlet Invert= 905.30. S= 0.1280.t Cc= 0.900 n= 0.035 #2 Primary 905.20. 27.0" x 30.0. long OUTLET PIPE RCP, mitered to conform to fill, Ke= 0.700 Outlet Invert= 904.50. S= 0.0233 .t Cc= 0.900 n= 0.013 Concrete pipe, straight & clean #3 Device 2 906.00. 5. SLOTTED WIER, C= 2.62 Head (feet) 0.00 1 .00 1 .00 2.50 2.50 . Width (feet) 0.40 0.75 5.00 5.00 0.00 #4 Device 3 901 .00. 27.0" x 32.0. long INLET PIPE CMP, projecting, no headwall, Ke= 0.900 Audobon Motor Complex . Prepared by Sathre-Bergquist, INC. HydroCAD@ 7.10 sin 003665 @ 2005 HydroCAD Software Solutions LLC Audobon Motor Complex - Preliminary Type 1124-hr 10- YEAR Rainfal/=4.20" Page 21 1 0/20/2006 . . Outlet Invert= 902.00. S= -0.0313./ Cc= 0.900 n= 0.030 Corrugated metal 908.50. 5.0" Horiz. Top Grate Limited to weir flow C= 0.600 Primary OutFlow Max=1 0.56 cfs @ 12.47 hrs HW=907.60. TW=O.OO. (Dynamic Tailwater) L2=OUTLET PIPE (Passes 1 0.56 cfs of 19.11 cfs potential flow) t3=51 SLOTTED WIER (Weir Controls 10.56 cfs @ 2.9 fps) L4=INLET PIPE (Passes 1 0.56 cfs of 19.14 cfs potential flow) 5=Top Grate (Controls 0.00 cfs) #5 Device 2 Secondary OutFlow Max=O.OO cfs @ 0.00 hrs HW=906.00. TW=O.OO. (Dynamic Tailwater) L1=RIP RAP OVERFLOW (Controls 0.00 cfs) Pond 2P: POND Hydrograph II Elevation . Inflow o Outflow . Primary [jJ Secondary Inflow Area=20.540 ac Inflow=61.10 cIs @ 12.06 hrs Outf'ow=10.56 cfs @ 12.47 hrs Primary=1 0.56 cf~ @ 12.47 hrs Secondary::O.OO cIs u@ '-0.00 hrs 907 - ~ - Peak Elev=907.60' - ; -Storage=345,91-1 cf .... Q) ~ c .2 m > Q) w 906 . I I' . I 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48 50 52 54 56 58 60 Time (hours) Audobon Motor Complex - Preliminar~v Audobon Motor Complex Type 1124-hr 10- YEAR Rainfall=4.20" . Prepared by Sathre-Bergquist, INC. Page 2~~ HydroCAD@ 7.10 sin 003665 @ 2005 HydroCAD Software Solutions LLC 1 O/20/200E~ Pond 2P: POND Stage-Discharge 910 909 908 907 __t~l:~~_~~:mBD~~I~~~I_ __ I <9~~i,~e~,~Bill?'EI 906 ~ 905 Q) ~ 904 c .2 10 903 > Q) W 902- II ~~~1[~1?11?~( 901 900 899- 898 897 o I 20 25 30 Discharge (cfs) 10 15 45 35 40 50 5 Pond 2P: POND Stage-Area-Storage Surface/HorizontallWetted Area (sq-ft) o 5,000 10,000 15,000 20,000 25,000 30,000 35,000 40,000 45,000 50,000 55,000 60,000 I ... I 910 909 908 907 906 ;- 905 Q) ~ 904 c o ~ 903 > ~ 902 901 900 899 898 100,000 I 400,000 200,000 300,000 Storage (cubic-feet) . . . Audobon Motor Complex Prepared by Sathre-Bergquist, INC. HydroCAD@ 7.10 sin 003665 @ 2005 HydroCAD Software Solutions LLC Audobon Motor Complex - Preliminary Type //24-hr 10- YEAR Rainfa//=4.20" Page 23 1 0/20/2006 Link WET: WETLAND Inflow Area = Inflow = Primary = 29.940 ac, Inflow Depth> 1.8311 14.92 cfs @ 12.30 hrs, Volume= 14.92 cfs @ 12.31 hrs, Volume= for 1 0- YEAR event 4.573 af 4.573 at, Atten= 00/0, Lag= 0.6 min Primary outflow = Inflow, Time Span= 0.00-60.00 hrs, dt= 0.01 hrs Link WET: WETLAND Hydrograph 16 15 14 13_ 12 11 _ . 10-: ~ 9- ~ : :; 8- 0 u:: 7 6. 5- Inflow Area=29.940 ac Inflow=14.92 cfs @ 12.30 hrs Primary=14.92 cfs @ 12.31 hrs 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48 50 52 54 56 58 60 Time (hours) . . . . Audobon Motor Complex - Preliminary Type //24-hr 100- YEAR Rainfa//=6.00" Page 24 1 0/20/2006 Audobon Motor Complex Prepared by Sathre-Bergquist, INC. HydroCAD@ 7.10 sin 003665 @ 2005 HydroCAD Software Solutions LLC Time span=O.OQ-60.00 hrs, dt=0.01 hrs, 6001 points Runoff by SCS TR-20 method, UH=SCS Reach routing by Sim-Route method - Pond routing by Sim-Route method Subcatchment P: POND SURFACE AREA Runoff Area=1.190 ac Runoff Depth=6.00" Flow Length=255' Tc=0.3 min CN=100 Runoff=t2.02 cfs 0.595 af Subcatchment P1: POND INFLOW Runoff Area=19.350 ac Runoff Depth=3.8811 Flow Length=1 ,059' Tc=13.6 min CN=81 Runoff=1 00.88 cfs 6.263 af Subcatchment WET-(1): WETLAND INFLOW(1) Runoff Area=5.750 ac Runoff Depth=1.76" Flow Length=8691 Tc=24.5 min CN=58 Runoff=9.13 cfs 0.842 af Subcatchment WET-(2): WETLAND INFLOW(2) Runoff Area=3.650 ac Runoff Depth=1.84" Flow Length=3891 Tc=24.0 min CN=59 Runoff=6.24 cfs 0.559 af Subcatchment WET-EX: EXISTING WETLAND Runoff Area=28.860 ac Runoff Depth=1.76" Flow Length=9261 Tc=26.0 min CN=58 Runoff=44.12 cfs 4.225 at Pond 2P: POND Peak Elev=908.451 Storage=397,846 ct Intlow=1 02.25 cfs 6.858 af Primary=23.65 cts 6.704 at Secondary=O.OO cts 0.000 at Outflow=23.65 cfs 6.704 at link WET: WETLAND Inflow=38.52 cfs 8.105 at Primary=38.52 cfs 8.105 af Total Runoff Area = 58.800 ac Runoff Volume = 12.484 af Average Runoff Depth = 2.5511 . . . Audobon Motor Complex . Prepared by Sathre-Bergquist, INC. HydroCAD@ 7.10 sin 003665 @ 2005 HydroCAD Software Solutions LLC Audobon Motor Complex - Preliminary Type //24-hr 100- YEAR Rainfa//=6.00" Page 25 1 0/20/2006 Subcatchment P: POND SURFACE AREA [49] Hint: Tc<2dt may require smaller dt Runoff = 12.02 cfs @ 11.90 hrs, Volume= 0.595 af, Depth= 6.00" Runoff by SCS TR-20 method, UH=SCS, Time Span= 0.00-60.00 hrs, dt= 0.01 hrs Type II 24-hr 1 00- YEAR Rainfall=6.00" Area (ac) eN Description 1 . 1 90 1 00 Tc Length (min) (feet) 0.3 255 . 13 12 11 - "' 10 9 8 en ~ 7 :: 0 6 u: 5 4 3 2 0 0 2 4 6 Slope Velocity Capacity Description (ft/ft) (ft/sec) (cfs) 12.7 lake or Reservoir, POND Mean Depth= 5.011 Subcatchment P: POND SURFACE AREA Hydrograph RUl1of~=12~"02 ~'s .@. 11.~Q Jlrs Typ~ I~ 24-~r .1.0Q- 'fE;AR, . . : Rainfall=6.00:11 Ru:noffA~ea=1.1.90 ac Runoff Volu:me=0.595 af Run.oft Oepth~6.00:11' : Flow length=2551 . Tc=O.3 min -eN=100 . . . I . . ... 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 50 52 54 56 58 60 Time (hours) . I . Runoff I I I , -----.--J Audobon Motor Complex - Preliminar:y Audobon Motor Complex Type //24-hr tOO-YEAR Rainfall=6.00" _ Prepared by Sathre-Bergquist, INC. Page 2~3 _ HydroCAD@ 7.10 sin 003665 @ 2005 HydroCAD Software Solutions LLC 10/20/200f3 Subcatchment P1: POND INFLOW Runoff = 100.88 cfs @ 12.05 hrs, Volume= 6.263 af, Depth= 3.88" Runoff by SCS TR-20 method, UH=SCS, Time Span= 0.00-60.00 hrs, dt= 0.01 hrs Type II 24-hr 100- YEAR Rainfall=6.00" Area (ac) 11 .000 3.830 4.520 19.350 CN Description 98 61 >750/0 Grass cover, Good, HSG B (UNGRADED) 58 Meadow, non-grazed, HSG B (UNGRADED) 81 Weighted Average Tc Length Slope Velocity Capacity Description (min) (feet) ( ft/ft) (ft/sec ) (cfs) 11.5 123 0.061 0 0.2 Sheet Flow, GRASS Grass: Dense n= 0.240 P2= 2.80" 0.8 61 0.0260 1.3 Sheet Flow, CURB . Smooth surfaces n= 0.011 P2= 2.80" 1.3 875 0.0375 11.5 20.34 Circular Channel (pipe), RCP Diam= 18.0" Area= 1.8 sf Perim= 4.71 r== 0.381 n= 0.013 Concrete pipe, straight & clean - 13.6 1 ,059 Total . Audobon Motor Complex . Prepared by Sathre-Bergquist, INC. HydroCAD@ 7.10 sIn 003665 @ 2005 HydroCAD Software Solutions LLC Audobon Motor Complex - Preliminary Type //24-hr tOO-YEAR Rainfa//=6.00" Page 27 1 0/20/2006 . . 110. 105 100 95 90 85 80 75 70 ~ 65- ~ 60 ~ 55 ~ 50- 45 40 35 30. 25-= 20 - 15 10 5 o. . ^ o Subcatchment P1: POND INFLOW Hydrograph . Runoff=100.88 cfs @ 12.05 hrs Type-II 24-hr 100-YEAR Rainfall=6.0011 Runoff Area=19.3.50 ac - -- -, -- .Runoff Volume=6.263 af Ru-.n.Qff O_~pfh_:;3.:a81.1 Flow Length=1,0591 T-c~13"6 min CN=81- . I" ., .. 'I' . I" 1 I . 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 Time (hours) I . Runoff I Audobon Motor Complex - Preliminar~1 Audobon Motor Complex Type //24-hr tOO-YEAR Rainfa//=6.0011 . Prepared by Sathre-Bergquist, INC. Page 2E~ HydroCAO@ 7.10 sin 003665 @ 2005 HydroCAD Software Solutions LLC 10/20/200€! Subcatchment WET-(1): WETLAND INFLOW(1) Runoff = 9.13 cfs @ 12.20 hrs, Volume= 0.842 af, Depth= 1.76" Runoff by SCS TR-20 method, UH=SCS, Time Span= 0.00-60.00 hrs, dt= 0.01 hrs Type II 24-hr 100- YEAR Rainfall=6.00" Area (ac) 5.750 CN Description 58 Meadow, non-grazed, HSG B Tc Length Slope Velocity Capacity Description (min) (feet) ( ft/ft) (ft/sec) (cfs) 21.1 300 0.0800 0.2 Sheet Flow, GRASS Grass: Dense n= 0.240 P2= 2.80" 3.4 569 0.0343 2.8 Shallow Concentrated Flow, Grassed Waterway Kv= 15.0 fps 24.5 869 Total Subcatchment WET-(1): WETLAND INFLOW(1) . Hydrograph o I . . o 2 4 6 I_ Runoff' 10 9 8 7 en 6 ~ 3: 5 0 u:: 4 3 2 RUIlOff=9.13 cfs @ 12.20 hrs , Type;-II 24:-ht 1,OO-.YEAR Rainfall=6.00-:1 R~l1off Ar~a~5.7~O a-9 Runoff Volume=O.842 af :Runoff Oepth=1.76-~I' FloW Length=86~1 Tc=24.5 min CN=58 . I" . , 'I" I , t t' 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48 50 52 54 56 58 60 Time (hours) . . Audobon Motor Complex Prepared by Sathre-Bergquist, INC. HydroCAD@ 7.10 sIn 003665 @ 2005 HydroCAD Software Solutions LLC Audobon Motor Complex - Preliminary Type 1124-hr 100- YEAR Rainfall=6.00" Page 29 1 0/20/2006 Subcatchment WET-(2): WETLAND INFLOW(2) Runoff 6.24 cfs @ 12.19 hrs, Volume= 0.559 af, Depth= 1.8411 Runoff by SCS TR-20 method, UH=SCS, Time Span= 0.00-60.00 hrs, dt= 0.01 hrs Type II 24-hr 100- YEAR Rainfall=6.0011 Area (ac) 3.010 0.640 3.650 CN Description 58 Meadow, non-grazed, HSG B 61 >750/0 Grass cover, Good, HSG B 59 Weighted Average Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec ) (cfs) 23.7 300 0.0600 0.2 Sheet Flow, GRASS Grass: Dense n= 0.240 P2= 2.8011 0.3 89 0.1350 5.5 Shallow Concentrated Flow, . Grassed Waterway Kv= 15.0 fps 24.0 389 Total Subcatchment WET-(2): WETLAND INFLOW(2) Hydrograph 6 III Runoff ~ 5 'Runoff=6.24 'cfs @ 12.19 hrs Type II 24-hr 100-YEAR Rainfall=6.00~1 Runoff Area=3.650 ac Runoff Volume=O.559 af _ ~un~~~ Dep~t.l=~ ~~411 Flow Length:::3891 Tc=24.0 min CN=59 Ui 4 ~ :: o u: 3 2 . o ,; .. o 2 4 - ",--".-'-." -,.:';.;,--'.,.,-,: ;':-'- -,.- ,":' -." .-' - ... . I ,. .,. 1" 'I'. ,AI4o il-ii, .... -..,...* ",. ...t'l Itl" .... 6 8 1 0 12 14 16 1 8 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48 50 52 54 56 58 60 Time (hours) I i i ! ---~-- --- Audobon Motor Complex - Preliminar)1 Audobon Motor Complex Type //24-hr tOO-YEAR Rainfa//=6.00" . Prepared by Sathre-Bergquist, INC. Page 3C) HydroCAD@ 7.10 sIn 003665 (Q 2005 HydroCAD Software Solutions LLC 1 O/20/200E~ Subcatchment WET-EX: EXISTING WETLAND Runoff = 44.12 cfs @ 12.22 hrs, Volume= 4.225 af, Depth= 1.76" Runoff by SCS TR-20 method, UH=SCS, Time Span= 0.00-60.00 hrs, dt= 0.01 hrs Type II 24-hr 1 00- YEAR Rainfall=6.00" Area (ac) , CN 28.860 58 Description Meadow, non-grazed, HSG B Tc Length Slope Velocity Capacity Description (min) ( feet) ( ft/ft) (ft/sec ) (cfs) 22.9 300 0.0650 0.2 Sheet Flow, GRASS Grass: Dense n= 0.240 P2= 2.80" 3.1 626 0.0500 3.4 Shallow Concentrated Flow, Grassed Waterway Kv= 15.0 fps 26.0 926 Total Subcatchment WET-EX: EXISTING WETLAND . Hydrograph 48 46 44 42 40 38 36 34 32 30 Ui' 28 ~ 26 :: 24 ~ 22 20 18 16 . 14 12 10 8 6 4 2. o o ,- Runoff I Runoff=44'.12 cfs @1-2.22 hrs Type II -24-hr tOO-YEAR Rainfall=6.00!1I Rut10ff, 4r~-a:;2a.860 ac Runoff Volume=4.225 af .~ ... .. Runoff Depth=1.76,1I Flo.w, Length::9261 Tc=26~O- min CN=58 I . . I . . 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 Time (hours) . Audobon Motor Complex . Prepared by Sathre-Bergquist, INC. HydroCAD@ 7.10 sIn 003665 @ 2005 HydroCAD Software Solutions LLC Audobon Motor Complex - Preliminary Type 1124-hr 100- YEAR Rainfall=6.0011 Page 31 1 0/20/2006 Pond 2P: POND Inflow Area = Inflow = Outflow = Primary = Secondary = 20.540 ac, Inflow Depth = 4.0111 for 100- YEAR event 102.25 cfs @ 12.05 hrs, Volume= 6.858 af 23.65 cfs @ 12.36 hrs, Volume= 6.704 af, Atten= 770/0, Lag= 18.2 min 23.65 cfs @ 12.36 hrs, Volume= 6.704 af 0.00 cts @ 0.00 hrs, Volume= 0.000 af Routing by Sim-Route method, Time Span= 0.00-60.00 hrs, dt= 0.01 hrs Starting Elev= 906.00. Surf.Area= 51 ,912 sf Storage= 256,706 cf Peak Elev= 908.45. @ 12.36 hrs Surf.Area= 63,522 sf Storage= 397,846 cf (141,139 cf above s1 Plug-Flow detention time= 1 ,527.4 min calculated for 0.811 af (120/0 of inflow) Center-ot-Mass det. time= 257.6 min ( 1 ,064.5 - 806.9 ) Volume Invert Avail.Storage Storage Description #1 897.00. 496,727 cf Custom Stage Data (Irregular) Listed below (Recalc) Elevation Surf.Area Perim. Inc.Store Cum.Store Wet.Area . (teet) ( sq-ft) (feet) (cubic-feet) (cubic-feet) ( sq-ft) 897.00 0 0.0 0 0 0 898.00 17,063 702.0 5,688 5,688 39,218 900.00 23, 171 823.0 40,079 45,766 53,981 902.00 30,413 919.3 53,420 99,186 67,446 904.00 37,850 1 ,008.5 68,128 167,314 81 ,265 906.00 51,912 1,152.3 89,393 256,706 106,086 908.00 61 ,309 1 ,206.3 113,091 369,797 116,492 908.50 63,774 1 ,214.0 31 ,269 401 ,066 118,094 910.00 63,774 1 ,214.0 95,661 496,727 119,915 Device Routing Invert Outlet Devices #1 Secondary 908.50. 10.00. W X 0.50. H x 25.0. long RIP RAP OVERFLOW Ke= 1.000 Outlet Invert= 905.30. S= 0.1280./ Cc= 0.900 n= 0.035 #2 Primary 905.20. 27.0" x 30.0. long OUTLET PIPE RCP, mitered to conform to fill, Ke= 0.700 Outlet Invert= 904.50. S= 0.0233 ./ Cc= 0.900 n= 0.013 Concrete pipe, straight & clean #3 Device 2 906.00. 5. SLOTTED WIER, C= 2.62 . Head (feet) 0.00 1 .00 1 .00 2.50 2.50 Width (feet) 0.40 0.75 5.00 5.00 0.00 #4 Device 3 901.00. 27.0" x 32.0. long INLET PIPE CMP, projecting, no headwall, Ke= 0.900 Audobon Motor Complex - Preliminar~y Audobon Motor Complex Type //24-hr tOO-YEAR Rainfa//=6.0Q,1I . Prepared by Sathre-Bergquist, INC. Page 3~2 HydroCAD@ 7.10 sIn 003665 @ 2005 HydroCAD Software Solutions LLC 1 O/20/200f~ Outlet Invert= 902.00. S= -0.0313./ Cc= 0.900 n= 0.030 Corrugated metal 908.50. 5.0" Horiz. Top Grate Limited to weir flow C= 0.600 #5 Device 2 Primary OutFlow Max=23.65 cfs @ 12.36 hrs HW=908.45. TW=O.OO. (Dynamic Tailwater) L2=OUTLET PIPE (Passes 23.65 cfs of 24.62 cfs potential flow) t3=SI SLOTTED WIER (Passes 23.65 cfs of 32.45 cfs potential flow) ~=INLET PIPE (Inlet Controls 23.65 cfs @ 5.9 fps) 5=Top Grate (Controls 0.00 cfs) Secondary OutFlow Max=O.OO cfs @ 0.00 hrs HW=906.00. TW=O.OO. (Dynamic Tailwater) L1=RIP RAP OVERFLOW (Controls 0.00 cfs) Pond 2P: POND 3: o Ll: Hydrograph Inflow'Area=20.540 a'c Inflow=f02.25 ,cIs @- 1'2.05 hrs 908 Outflow=23.65cfs @ 12.36 hrs Primary=23.65 -cf~ @ 12.~6 hrs Secondary=O.OO c~s @ .0.00 hrs.. Peak Elev=908.451 Storage::397,846 cf . Elevation . Inflow D Outflow . Primary OJ Secondary . Q) ~ c: .52 m > CD W 907 U) ~ 906 o .. .. . I . I' . o 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48 50 52 54 56 58 60 Time (hours) . . Audobon Motor Complex Prepared by Sathre-Bergquist, INC. HvdroCAD@ 7.10 sIn 003665 @ 2005 HydroCAD Software Solutions LLC Audobon Motor Complex - Preliminary Type 1124-hr 100- YEAR Rainfall=6.00" Page 33 1 0/20/2006 Pond 2P: POND Stage-Discharge 910 909 908 907 _ _I$'~~_~~~D_.'~I~,~I IOUlfbBJ PIPEI 906 ~ 905- (1) ::. 904 c: o .~ 903 > (1) Ui 902: IINL~~f~IP6J' 901 900 899- 898 . 897 o I I I 5 10 15 20 25 30 35 40 45 50 Discharge (cfs) Pond 2P: POND Stage-Area-Storage Surface/HorizontallWetted Area (sq-ft) 0 5,000 1 0,000 15,000 20,000 25,000 30,000 35,000 40,000 45,000 50, ?OO 55,000 60,000 . . . I I . 910 909 908 907 906 ~ 905 Q) ~ 904 c: 0 ~ 903 > (1) 902 ijj 901 900 899 . 898 897 0 200,000 300,000 Storage (cubic-feet) I 400,000 100,000 Audobon Motor Complex - Preliminar)f Audobon Motor Complex Type 1/24-hr tOO-YEAR Rainfal/=6.00" . Prepared by Sathre-Bergquist, INC. Page 3-4 HydroCAO@ 7.10 sin 003665 @ 2005 HydroCAD Software Solutions LLC 1 O/20/200E~ link WET: WETLAND I nflow Area = Inflow = Primary = 29.940 ac, Inflow Depth> 3.25" for 100- YEAR event 38.52 cfs @ 12.21 hrs, Volume= 8.105 af 38.52 cfs @ 12.22 hrs, Volume= 8.105 af, Atten= 00/0, Lag= 01.6 min Primary outflow = Inflow, Time Span= 0.00-60.00 hrs, dt= 0.01 hrs link WET: WETLAND Hydrograph 42 40 38 36 34 32 30 28 26 ~ 24 o - 22 ~ 20 u: 18 16 14. 12 10 8 6 4 2 o . o 2 Inflow Area=29.940. ac u Infl~~~3~'.?2_ ~!s _ ~_ 12..?1, ~r~ Pr,imary=38.52 cfs, @~ 12.22. hr~ . . . I' I . I 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48 50 52 54 56 58 60 Time (hours) . Audobon Motor Complex - Preliminary Audobon Motor Complex Type //24-hr tOO-YEAR B-B Ra in fa 1/=6. 00" x 2 . Prepared by Sathre-Bergquist, INC. Page 35 HydroCAD@ 7.10 sIn 003665 @ 2005 HydroCAD Software Solutions LLC 10/20/2006 Time span=0.00-60.00 hrs, dt=0.01 hrs, 6001 points Runoff by SCS TR-20 method, UH=SCS Reach routing by Sim-Route method - Pond routing by Sim-Route method Subcatchment P: POND SURFACE AREA Runoff Area=1.190 ac Runoff Depth=12.00" Flow Length=2551 Tc=0.3 min CN=100 Runoff=12.02 cfs 1.190 af Subcatchment P1: POND INFLOW Runoff Area=19.350 ac Runoff Depth=9.58" Flow Length=1 ,0591 Tc=13.6 min CN=81 Runoff=125.10 cfs 15.450 af Subcatchment WET-(1): WETLAND INFLOW(1) Runoff Area=5.750 ae Runoff Depth=6.2611 Flow Length=8691 Tc=24.5 min CN=58 Runoff=22.08 cfs 2.998 af Subcatchment WET-(2): WETLAND INFlOW(2) Runoff Area=3.650 ac Runoff Depth=6.41II Flow Length=3891 Tc=24.0 min CN=59 Runoff=14.39 cfs 1.950 af Subcatchment WET-EX: EXISTING WETLAND Runoff Area=28.860 ac Runoff Depth=6.2611 . Flow Length=926' Tc=26.0 min CN=58 Runoff=1 06.96 cfs 15.049 af Pond 2P: POND Peak Elev=909.261 Storage=449,297 cf Inflow=126.48 cfs 16.640 af Primary=27.84 cfs 15.607 af Secondary=12.71 cfs 0.581 af Outflow=40.56 cfs 16.188 af link WET: WETLAND Inflow=75.61 cfs 21.136 af Primary=75.61 cfs 21.136 af Total Runoff Area = 58.800 ac Runoff Volume = 36.638 af Average Runoff Depth = 7.4811 . Audobon Motor Complex - Preliminar~v Audobon Motor Complex Type //24-hr tOO-YEAR B-B Rainfal/=6.00" x 2 .. Prepared by Sathre-Bergquist, INC. Page 36 ., HydroCAO@ 7.10 sin 003665 @ 2005 HydroCAD Software Solutions LLC 1 O/20/200{~ Subcatchment P: POND SURFACE AREA [49] Hint: Tc<2dt may require smaller dt Runoff = 12.02 cfs @ 11.90 hrs, Volume= 1.190 af, Depth=12.0011 Runoff by SCS TR-20 method, UH=SCS, Time Span= 0.00-60.00 hrs, dt= 0.01 hrs Type II 24-hr 100- YEAR B-B Rainfall=6.0011 x 2 Area (ac) CN Description 1 . 1 90 1 00 Tc Length (min) (feet) 0.3 255 Slope Velocity Capacity Description (fUft) (fUsec) (cfs) 12.7 lake or Reservoir, POND Mean Depth= 5.011 Subcatchment P: POND SURFACE AREA Hydrograph . 8 13 I_ Runoff I 5 off=12~02 cfs _ ~ 11.90Jlrs pe II 2fJ-hr 100-YEA~ ~-~ Rainfall,=6.0011 X 2 Runoff Area=1.1,90 ac Runoff Volume=1.190 af -Runoff Depth=1-2'.OQII Flow length=2551 Tc=O.3 min . . CN=100 12 11 10 9 (i) ~ 7 ~ ~ 6 4 3 o 'I o 2 4 6 . , . . . I 8 1 0 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48 50 52 54 56 58 60 Time (hours) . . Audobon Motor Complex Prepared by Sathre-Bergquist, INC. HydroCAD@ 7.10 sIn 003665 @ 2005 HydroCAD Software Solutions LLC Audobon Motor Complex - Preliminary Type 1/24-hr tOO-YEAR B-B Rainfa//=6.00" x 2 Page 37 1 0/20/2006 Subcatchment P1: POND INFLOW Runoff = 125.10 cfs @ 36.04 hrs, Volume= 15.450 af, Depth= 9.5811 Runoff by SCS TR-20 method, UH=SCS, Time Span= 0.00-60.00 hrs, dt= 0.01 hrs Type II 24-hr 100- YEAR B-B Rainfall=6.0011 x 2 Area (ac) 11 .000 3.830 4.520 19.350 CN Description 98 61 >750/0 Grass cover, Good, HSG B (UNGRADED) 58 Meadow, non-grazed, HSG B (UNGRADED) 81 Weighted Average Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec ) (cfs) 11.5 123 0.0610 0.2 Sheet Flow, GRASS Grass: Dense n= 0.240 P2= 2.80" . 0.8 61 0.0260 1.3 Sheet Flow, CURB Smooth surfaces n= 0.011 P2= 2.8011 1.3 875 0.0375 11.5 20.34 Circular Channel (pipe), RCP Diam= 18.0" Area= 1 .8 sf Perim= 4.71 r= 0.381 n= 0.013 Concrete pipe, straight & clean 13.6 1 ,059 Total . Audobon Motor Complex - Preliminar~y Audobon Motor Complex Type //24-hr tOO-YEAR B-B Rain fa 1/=6. 00" x 2 _ Prepared by Sathre-Bergquist, INC. Page 3~3 ., HydroCAD@ 7.10 sin 003665 @ 2005 HydroCAD Software Solutions LLC 1 O/20/200f~ 140 130 120 110 100 90 ~ 80 ~ 3: 70 0 u:: 60 50 40 30 20 10 Subcatchment P1: POND INFLOW Hydrograph ,- Runoff I Runoff=125.10 cfs @ 36~04 hrs Type II 24-hr 100.;YEAR B-B Rainfall=6-. II x 2 Runoff Ar";~:19.350 ac Runoff Vo .....~ne=15.450 af Runoff De ;;,=9.5811 Flow Len "~=1 ,059- Tc=13.6 m CN=81 " I" I' ..\. I · 'I " I' · 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48 50 52 54 56 58 60 Time (hours) . . . . . Audobon Motor Complex Prepared by Sathre-Bergquist, INC. HydroCAO@ 7.10 sin 003665 @ 2005 HydroCAD Software Solutions LLC Audobon Motor Complex - Preliminary Type //24-hr tOO-YEAR B-B Rainfa//=6.00" x 2 Page 39 1 0/20/2006 Runoff Subcatchment WET-(1): WETLAND INFLOW(1) = 22.08 cfs @ 36.17 hrs, Volume= 2.998 af, Depth= 6.26" Runoff by SCS TR-20 method, UH=SCS, Time Span= 0.00-60.00 hrs, dt= 0.01 hrs Type II 24-hr 1 00- YEAR B-B Rainfall=6.00" x 2 Area (ac) 5.750 CN Description 58 Meadow, non-grazed, HSG B Tc Length Slope Velocity Capacity Description (min) (feet) ( ft/ft) (ft/sec ) (cfs) 21.1 300 0.0800 0.2 Sheet Flow, GRASS Grass: Dense n= 0.240 P2= 2.80" 3.4 569 0.0343 2.8 Shallow Concentrated Flow, Grassed Waterway Kv= 15.0 fps 24.5 869 Total Subcatchment WET-(1): WETLAND INFLOW(1) Hydrograph 24 23 22 21 20 19 18 17 16 15 (i) 14- ~ 13- 3: 12 ~ 11 10 9 8 7 6 5 4 3. 2. 1 _ o I . . o 2 4 6 I . Runoff I F:1uno~f~2?-.08 cfs @36.-17 hrs Type II 24~hr 100-YEAR B-B Rainfall=6.0011 x 2 ~lfnoff Ar'ea,=5. 7~O ac Runoff Volume=2.998 af J _ Runoff Depth=6.-2611 ,Flow Length=8691 . Tc=24.5 ~. CN=58 ... ji t ' .... ... ... I' . 'I . I' .. II' I'" I'. . 8 1 0 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48 50 52 54 56 58 60 Time (hours) I I I , I I Audobon Motor Complex - Preliminar~{ Audobon Motor Complex Type //24-hr tOO-YEAR B-B Rain fa 1/=6. 00" x 2 A Prepared by Sathre-Bergquist, INC. Page 40 _ HydroCAD@ 7.10 sin 003665 @ 2005 HydroCAD Software Solutions LLC 1 O/20/200~i Subcatchment WET-(2): WETLAND INFLOW(2) Runoff = 14.39 cfs @ 36.16 hrs, Volume= 1.950 at, Depth= 6.41" Runoff by SCS TR-20 method, UH=SCS, Time Span= 0.00-60.00 hrs, dt= 0.01 hrs Type II 24-hr 100-YEAR B-B Rainfall=6.00" x 2 Area (ac) 3.010 0.640 3.650 eN Description 58 Meadow, non-grazed, HSG B 61 >750/0 Grass cover, Good, HSG B 59 Weighted Average Tc Length Slope Velocity Capacity Description (min) (feet) ( ft/ft) (ft/sec) (cfs) 23.7 300 o . 0600 0.2 Sheet Flow, GRASS Grass: Dense n= 0.240 P2= 2.80" 0.3 89 0.1350 5.5 Shallow Concentrated Flow, Grassed Waterway Kv= 15.0 fps - . 24.0 389 Total Hydrograph Subcatchment WET-(2): WETLAND INFLOW(2) 16 15 14 13 12 11 10 3 2 Ru'noff~14.39' cfs @ 36.1'1'6 hrs Type 1124~hr 10Q-YEAR B~B Rainfall=6.00Il,x 2 ' Runoff Area=3.650i ac Runoff Volu:me=1...950 af Runoff Depth:::6..41:11 'Flow Length=3891 Tc::24.0 m- CN=59 ~ 9 ~ :: 8 o u:: 7- 6 5 4 o I . o 2 4 ,- Runoff I . I 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48 50 52 54 56 58 60 Time (hours) . . . . Audobon Motor Complex Prepared by Sathre-Bergquist, INC. HydroCAD@ 7.10 sin 003665 @ 2005 HydroCAD Software Solutions LLC Audobon Motor Complex - Preliminary Type //24-hr 100- YEAR B-B Rainfa//=6.00" x 2 Page 41 1 0/20/2006 Runoff Subcatchment WET-EX: EXISTING WETLAND = 106.96 cfs @ 36.19 hrs, Volume= 15.049 at, Depth= 6.2611 Runoff by SCS TR-20 method, UH=SCS, Time Span= 0.00-60.00 hrs, dt= 0.01 hrs Type II 24-hr 1 00- YEAR B-B Rainfall=6.0011 x 2 Area (ac) 28.860 CN Description 58 Meadow, non-grazed, HSG B Tc Length Slope Velocity Capacity Description (min) (feet) ( ft/ft) (ft/sec ) (cfs) 22.9 300 0.0650 0.2 Sheet Flow, GRASS Grass: Dense n= 0.240 P2= 2.8011 3.1 626 0.0500 3.4 Shallow Concentrated Flow, Grassed Waterway Kv= 15.0 fps 26.0 926 Total 115 110 105 100 95 90 85 80 75- (i) 70 . ~ 65 ~ 60- o 55- u: 50 45 40 35 30 25 20 15 10 5 o o Subcatchment WET-EX: EXISTING WETLAND Hydrograph Runoff=106.96 cfs @ 36.19 hrs Type II 24~hr 100~YEAR' B~B Rainfall=6'.OOIl x 2 Runoff Area;::28.860 ac Runoff Volume=15.049 af Runoff. Depth=6.2611 Flow' Length=~2~'1 Tc=26.0 min CN=58 . I . Runoff I . . '. '''.' I' .. . ,.... , ,. , . ,.. I.... "/ ... 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48 50 52 54 56 58 60 Time (hours) I I .~ Audobon Motor Complex - Preliminar~y Audobon Motor Complex Type //24-hr tOO-YEAR B-B Rainfa//=6.00" x ~2 . Prepared by Sathre-Bergquist, INC. Page 4~2 HydroCAO@ 7.10 sin 003665 @ 2005 HydroCAD Software Solutions LLC 10/20/2006 Pond 2P: POND I nflow Area = Inflow = Outflow = Primary = Secondary = 20.540 ac, Inflow Depth = 9.7211 for 1 DO-YEAR B-B event 126.48 cfs @ 36.04 hrs, Volume= 16.640 af 40.56 cfs @ 36.27 hrs, Volume= 16.188 at, Atten= 680/0, Lag= 13.6 min 27.84 cfs @ 36.27 hrs, Volume= 15.607 af 12.71 cfs @ 36.27 hrs, Volume= 0.581 af Routing by Sim-Route method, Time Span= 0.00-60.00 hrs, dt= 0.01 hrs Starting Elev= 906.00. Surf.Area= 51,912 sf Storage= 256,706 cf Peak Elev= 909.26. @ 36.27 hrs Surf.Area= 63,774 sf Storage= 449,297 cf (192,591 cf above s1 Plug-Flow detention time= 1,107.3 min calculated for 10.294 af (620/0 of inflow) Center-of-Mass det. time= 190.0 min ( 1,798.7 - 1,608.7 ) Volume Invert Avail.Storage Storage Description - #1 897.00. 496,727 cf Custom Stage Data (Irregular) Listed below (Recalc) Elevation Surf.Area Perim. Inc.Store Cum.Store Wet.Anea (feet) ( sq-ft) ( feet) (cubic-feet) (cubic-feet) (sq-ft) . 897.00 0 0.0 0 0 0 898.00 1 7 , 063 702.0 5,688 5,688 39,218 900.00 23,171 823.0 40,079 45,766 53,981 902.00 30,413 919.3 53,420 99, 186 67,446 904.00 37,850 1 ,008.5 68,128 167,314 81 ,265 906.00 51 ,912 1,152.3 89,393 256,706 1 06,0~36 908.00 61 ,309 1 ,206.3 113,091 369,797 116,4!~2 908.50 63,774 1 ,214.0 31 ,269 401 ,066 118,0!~4 910.00 63,774 1 ,214.0 95,661 496,727 119,915 Device Routing Invert Outlet Devices #1 Secondary 908.50. 10.00. W X 0.50. H x 25.0. long RIP RAP OVERFLOW Ke= 1.000 Outlet Invert= 905.30. S= O. 1280 ./ Cc= 0.900 n= 0.035 #2 Primary 905.20. 27.0" x 30.0. long OUTLET PIPE RCP, mitered to conform to fill, Ke= 0.700 Outlet Invert= 904.50. S= 0.0233 ./ Cc= 0.900 n= 0.013 Concrete pipe, straight & clean #3 Device 2 906.00. 5. SLOTTED WIER, C= 2.62 Head (feet) 0.00 1 .00 1 .00 2.50 2.50 . Width (feet) 0.40 0.75 5.00 5.00 0.00 #4 Device 3 901 .00. 27.0" x 32.0. long INLET PIPE CMP, projecting, no headwall, Ke= 0.900 Audobon Motor Complex - Preliminary Audobon Motor Complex Type //24-hr tOO-YEAR B-B Ra in fa//=6. 00" x 2 . Prepared by Sathre-Bergquist, INC. Page 43 HydroCAD@ 7.10 sIn 003665 @ 2005 HydroCAD Software Solutions LLC 10/20/2006 #5 Device 2 Outlet Invert= 902.001 S= -0.0313 It Cc= 0.900 n= 0.030 Corrugated metal 908.50' 5.0" Horiz. Top Grate Limited to weir flow C= 0.600 Primary OutFlow Max=27.84 cfs @ 36.27 hrs HW=909.261 TW=O.OO' (Dynamic Tailwater) L2=OUTLET PIPE (Passes 27.84 cfs of 28.92 cfs potential flow) t3=5' SLOTTED WIER (Passes 27.27 cfs of 49.37 cfs potential flow) ~=INLET PIPE (Inlet Controls 27.27 cfs @ 6.9 fps) 5=Top Grate (Orifice Controls 0.57 cfs @ 4.2 fps) Secondary OutFlow Max=12.71 cfs @ 36.27 hrs HW=909.261 TW=O.OOI (Dynamic Tailwater) L1=RIP RAP OVERFLOW (Inlet Controls 12.71 cfs @ 2.5 fps) Pond 2P: POND . 140 130 120 110 100 90 U) 80 ~ :: 70 0 u: 60 50 40 30 20 10 Inflow Area=20.540 ac. ~ Inflow=126..48 cfs @ 36.04 hrs Outflow=40.56 cfs @ 36.27 hrs Primary=27. fs @ 36.27 hrs Seconda 1 cfs @ 36.27 -;hrs Peak EI Storage 909 . Elevation . Inflow D Outflow . Primary C Secondary 908 Q) ~ c: .2 1ti > Q) w 907 906 o . . "... I" "'1' .. . . . I · I I' o 2 4 6 8 1 0 12 14 16 1 8 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48 50 52 54 56 58 60 Time (hours) . Audobon Motor Complex - Preliminar~1 Audobon Motor Complex Type //24-hr tOO-YEAR B-B Rain fa 1/=6. 00" x 2 _ Prepared by Sathre-Bergquist, INC. Page 4L~ ., HydroCAD@ 7.10 sIn 003665 @ 2005 HydroCAD Software Solutions LLC 10/20/200Ei Pond 2P: POND Stage-Discharge 910 909 908 907 ,I~' 'S~~-r:~ED WIERI 1 OUTLET PIPEI 906 ~ 905 Q) :=. 904 c: .2 16 903 > Q) jjj 902 I INLET PIPEI 901 900 899 898 897 o I 20 25 30 Discharge (cfs) . . I 10 15 45 50 35 40 5 Pond 2P: POND o 5,QOO Stage-Area-Storage Surface/HorizontallWetted Area (sq-ft) 10,000 15,000 20,000 25,000 30,000 35,000 40,000 45,000 50,000 55,000 60,000 , .. . It' ,. 910 909 908 907 - 906 ~ 905 ~ -;; 904_ o .~ 903- > ~ 902 901 900 899- 898- 897 o 100,000 200,000 300,000 Storage (cubic-feet) I 400,000 . . . Audobon Motor Complex Prepared by Sathre-Bergquist, INC. HydroCAD@ 7.10 sin 003665 @ 2005 HydroCAD Software Solutions LLC Audobon Motor Complex - Preliminary Type 1/24-hr tOO-YEAR B-B Rainfal/=6.00" x 2 Page 45 1 0/20/2006 Link WET: WETLAND I nflow Area = Inflow = Primary = 29.940 ac, Inflow Depth> 8.4711 for 100-YEAR B-B event 75.61 cfs @ 36.19 hrs, Volume= 21.136 af 75.61 cfs @ 36.20 hrs, Volume= 21.136 af, Atten= 00/0, Lag= 0.6 min Primary outflow = Inflow, Time Span= 0.00-60.00 hrs, dt= 0.01 hrs Link WET: WETLAND Hydrograph 80 75- 70 65 60. 55 . _ 50 rn ], 45 ~ 40 i:L 35 30 25 20 15 10~ 5 Inflow Area=29.940 ac Inflow=75.61 cfs @ 36.19 hrs Primary=75.61 cfs @ 36.20 hrs t 'I Ii.. tli.~ i ilt .;j~'~ ~..'.'6." ti ~r' ."JI i.. f.S tl . t.'. IIJ . 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48 50 52 54 56 58 60 Time (hours) . v<. 1I~ ~~ ! SATHRE-BERGQUIST, INC. . Il \;- t,/ 150 SOUTH BROADWAY, WAYZATA. MN 55391 . (612) 476-6000 'II pV' Project: Audobon Motor Complex Location: Chanhassen, Minnesota Prepared for: Prepared by Sathre-Bergquist, Inc. Date: October 19, 2006 Nurp Design Pond P= Aw= Area of Parking Lots Area Building Roofs = 2.5 "Storm 19.35 Acres 5.84 Acres 5.15 Acres (on-site only) (on-site only) (on-site only) Topoloqy Area CN Total Hardcover Area = 11.00 Acres 98 Grasscover (Existing) = 3.83 Acres 61 Grasscover(Proposed) = 4.52 Acres 58 . Hardcover For Fi = 5.84 Acres (Streets & Drives) 98 CN= 81 Weighted Mean CN Fi= 0.57 Impervious Fraction Pervious CN = 74.12 S= 1000/CN -10 = 3.49 Maximum Soil Retention (inches) Q= (P- .2S )(P- .2S)/(P+.8S) Q= 0.61 Accumulated Direct Storm Runoff (inches) V= QAw/12 = 0.99 Permanent Pool Volume Required (Ac-Ft) Ponding Dead Storage Volume Based on Plan Contours -10:1 Bench Then 4:1 Slope Contour Area (sf) Cummulative Storage(cf) (Acre-Feet) 897 Bottom 0 0 0.00 898 17063 8532 0.20 900 23171 48766 1.12 902 30143 102080 2.34 904 37850 170073 3.90 906 NWL 51912 259836 NWL 5.97 (Provided) 908 61309 373057 8.56 908.5 HWL 63774 404328 HWL 9.28 Dead Storage/Pond Surface Area = 5.01 . . . . ~lla~ l~ '" \ ,- i ,J'l1 'a ,.V' Project: Audobon Motor Complex Location: Chanhassen, Minnesota Prepared for: Prepared by Sathre-Bergquist, Inc. Date: October 19, 2006 SATHRE-BERGQUIST, INC. 150 SOUTH BROADWAY, WA'fZATA. MN 55391 . (612) 476-6000 FLOW AND PHOSPHORUS ROUTING IN POND NETWORKS PONDNET 2.1 W. Walker March 1989 INPUT VARIABLES.... UNITS case labels watershed area acres runoff coefficient (Impervious Fraction) - pond surface area acres pond mean depth feet upstream pond p load Ibs/yr upstream pond outflow ac-ftIyr OUTPUT VARIABLES........ outflow p load outflow volume outflow p conc pond removal total removal Pond 19.35 0.32 1.19 5.01 0.00 0.00 Ibs/yr ac- ftIyr ppb 0/0 0/0 5.78 14.60 145.68 67.63 67.63 ASSUMED EXPORT FACTORS............. period length yrs period precipitation inches ru noff total p ppb runoff ortho p/total p relative decay rate unit runoff unit export 1.00 28.30 450.00 0.35 1.00 9.06 0.92 in/yr Ibs/ac-y POND WATER BUDGETS...................... runoff 916.00 upstream pond ac-ftIyr total inflow ac-ftIyr outflow ac-ftIyr 14.60 0.00 14.60 14.60 POND PHOSPHORUS BUDGETS................... runoff Ibs/yr upstream pond Ibs/yr total inflow Ibs/yr net sedimentation Ibs/yr outflow Ibs/yr HYDRAULIC PARAMETERS............ pond volume vlawmo pond volume relative volume residence time residence time overflow rate inflow phos conc outflow phos conc p reaction rate 1-rp 17.86 0.00 17.86 12.08 5.78 acre-ft acre-ft inches years days ftIyr ppb ppb 5.96 1.29 11.55 0.41 149.02 12.27 450.02 145.68 6.45 0.32 ':" ,,"'; ='-- "'. 0$>\* · r1~t~"O'T A . l .....1. .t: l. ) NORTH i/.;.{' 30 15 ~""'w'" 15 30 60 I SCALE IN FEET ii'J, . \'~ \ r._1 j... ~( . ;,;:~ TOP WEIR-907.0 NWL-906.0 27"-RCP OUTLET .) '1:<,,, 27"-DIP INLET 0.50' PRELIMINARY COpy / / / ~ I HEREBY CERTIFY THAT THI DIRECT SUPERVISION S PLAN OR SPECIFICATION W THE LAWS OF THE STA~~DO~H~~~~~tT~UL Y REGISTERE~~~~~~~~I~~YL ME OR UNDER MY ~Q . ENGINEER UNDER DATE OCTOBER 19. 2006 REG. NO REVISIONS _N I-e 000; _ ('f) :J~ O~ (9 ~- c:::~ W~ CC~ I ~ Wo c:::~ I~ I-~ <(@ OO~ -..J ~ W o w lY: ::::> J- o ::::> lY: J- C/) J- W -..J J- ::::> o >< ~~~ a.O...J ct:C/)cn OW~ Z Z J-ZW O~~ ~ ....... Z Cf) ZWW IC/)> ~C/)Z ~<(- CO:c...J OZ:3 J-<(..... ::>:C:::J <(O~ DRAWN V.T.N. CHECKED R.E.P. DATE 10-19-2006 SCALE AS SHOWN JOB NO. 6307-001 ILE: BASE_AMP 101706.DWG SHEET . ~ o C/) w z z ~ >-.. J- z :::> o () ~ ~ cd: () u.. o >- w > ~ :::> C/) -.J o C/) . OO~L 96v OOGL96v OO~L96v OOOL96v 006996v 009996v OOL996v 009996v 009996v 0 0 (j) LO LO ~ 0 0 CO LO LO ~ 0 0 I'- LO LO ~ 0 0 to LO LO ~ 0 ""'" 0 LO LO LO ~ 0 0 ~ LO LO ~ >< 0 0 (1) M LO Q. 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C/.)O ~8 ~2 .~ ~ z "0 Q; Q) 0. m C/) S Q; 0 E ~ (3 (5 co C/) 0. m '0 3: ::J 0 S c- o. 0 (5 '0 ,9- 0 0. Cf) 3: Cf) Q) b U5 a co (5 >. a:: a '00 Cf) a:: 0 c '5 0. 0. 0. Q) 0. ~ co '0 'S ~ 0 ~ Cf) Cf) Q) 3: 0. C/) "0 u::: 0 0 (5 Cf) 4: Cf) 'c 0. >- Q) Q) 0 e Cf) Q) Q) <i3 <i3 >- i;:: .r. <i3 .::tt. Q) >- .r. () >- c Cf) ~ Q) 0. 3: >- a. "0 > > ~ co "0 C/) () ,~ "0 Q) .::tt. :.0 '0 c >. Q) > 0 0 0 co e co co "'3 > c m C/) () c :2 c 0 Q; ~ ::J Q) Q) <5 <5 co co ~ 0 co co 0 0. ~ (9 --J U5 co co (3 0 w (9 --J --J 2 ~ Cf) Cf) U5 i:75 Cf) Cf) U5 a.. I x ( < @ -:t @ > + ,:;;.. 0 ~ m <> :3 @) ... :> l'8J * . ~ ~ "E ~~ ~ "~ ~! e t = fIJ - = ~ = :z~ ~I Soil Survey of Carver County, Minnesota Audobon Motor Complex Map Unit Legend Summary . Carver County, Minnesota Map Unit Symbol Map Unit Name Acres in AOI Percent of AOI ~ GL Glencoe clay loam 9.0 11.8 f - - -.... - .. ...-- - III ___ - _ .....::i,__ __ ..... .. II1II _ __1ilI - j HM Hamel loam 6.6 8.6 .......... ..- - - i KB Kilkenny-Lester loams, 2 to 12.1 15.9 6 percent slopes 1 - - - - KC Lester- Kilkenny loams, 6 to 2.2 2.9 12 percent slopes - __ _.. - """-' - III - 'W --,.- ~..- --1 KC2 Lester- Kilkenny loams, 6 to 20.7 27.2 12 percent slopes, eroded - - - .- - KD Lester-Kilkenny loams, 12 to 1.9 2.4 18 percent slopes KD2 Lester- Kilkenny loams, 12 to 0.6 0.8 18 percent slopes, eroded KE2 Lester-Kilkenny loams, 18 to 1.1 1.4 25 percent slopes, eroded ND3 Lester- Kilkenny clay loams, 2.2 2.9 12 to 18 percent slopes, severely eroded . PM Klossner muck 19.9 26.1 . USDA Natural Resources :'?: Conservation Senice Web Soil Survey 1.1 National Cooperative Soil Survey 10/19/2006 Page 3 of 3 bJ I : I I N iOO'08~, ~ 9 0 ~vO i ii, ! i ! 1 : i ! ! N 1,,00' 0 f ~ 9 0 Pfo I I ! I I I I i I : i : N 1,00'081 ,Og 0 ~po i Ii, i I Iii : I i I i~ ~- ~- ~~~ . ~~ ~ -~~~~ ~ ~~ ~ .OJ' 1:1. ~ - \~ -~.1"11 T'-f~~> .I~ ( ~'-'. V"'~~~~~i / ~ - .. 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",rJ .... . ,.'.,. _ ~~. , \ ~ ~ . ~,. AJ..!! JtJI . :J'J ~ 8 I I N ,lOO'08!, ~s oJvo I Ni"OO'O ~ ~g ovto : N ,i,OO'od .os o~po I ! 8 ' -. - - .. - - - -. I -- - - -.-- . __. _ ., 1 $ Q) 2 <.0 <.0 <.0 UJ !:!l. UJ co 0...<.05- OO<D ~~..c <(COt) I~"~ (/)0.,.... . . .,.... <D .. Q) ECD- corn~ ZO(/) PID# 250151210 . . Legend Road Text 10Ft Contours US Highways ;I UN Highways ;I CSAH County Roads Lakes ~ Parcels Color 2002 IParcelIllfornzatioll Property Address: NOT ON FI LE Taxpayer Information: OSMONICS INC 595 I CLEAR WATER DR HOPKINS. MN 55343 IParcel Properties Tax Acres: 38.76 Homestead: N School District: 0112 IParcel Location Section: 15 Township: 116 Range: 023 lpayable Year 2007 - .... Map Created: 10-18-2006 Est. Market Value Land: $1788500 Est. Market Vallie Building: $0 Est. Market Value Total: $1788500 IILast Sale Information Sale Date: 12/20/1996 Sale Price: $ 1025000 Qualified/Unqualified: UNQUALIFIED SALE CARVER COUNTY GIS DISCLAIMER: This map was created using Carver County's Geographic Information Systems (GIS), it is a compilation ~ of information and data from various City. County, Stale, and Federal offices. This map is not a surveyed or legally recorded map and is intended to be ~ used as a reference. Carver County is not responsible for any inaccuracies contained herein. ~ . ~ - -D.' . . \._-