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09.LaMettry - Rate (2006 DESIGN) - 061815
Overall Motorplex Routing 14P POND P POND SURFACE AREA P1 POND INFLOW WET WETLAND WET-(1) WETLAND INFLOW(1) WET-(2) WETLAND INFLOW(2) Routing Diagram for 04.LaMettry - 061815 Prepared by Sathre-Bergquist, Inc., Printed 6/18/2015 HydroCAD® 10.00-13 s/n 03665 © 2014 HydroCAD Software Solutions LLC Subcat Reach Pond Link ORIGINAL 2006 MOTORPLEX DESIGN 04.LaMettry - 061815 Printed 6/18/2015Prepared by Sathre-Bergquist, Inc. Page 2HydroCAD® 10.00-13 s/n 03665 © 2014 HydroCAD Software Solutions LLC Area Listing (selected nodes) Area (acres) CN Description (subcatchment-numbers) 1.190 100 (P) 11.000 98 (P1) 0.640 61 >75% Grass cover, Good, HSG B (WET-(2)) 3.830 61 >75% Grass cover, Good, HSG B (UNGRADED) (P1) 8.760 58 Meadow, non-grazed, HSG B (WET-(1), WET-(2)) 4.520 58 Meadow, non-grazed, HSG B (UNGRADED) (P1) 29.940 75 TOTAL AREA ORIGINAL 2006 MOTORPLEX DESIGN 04.LaMettry - 061815 Printed 6/18/2015Prepared by Sathre-Bergquist, Inc. Page 3HydroCAD® 10.00-13 s/n 03665 © 2014 HydroCAD Software Solutions LLC Soil Listing (selected nodes) Area (acres) Soil Group Subcatchment Numbers 0.000 HSG A 17.750 HSG B P1, WET-(1), WET-(2) 0.000 HSG C 0.000 HSG D 12.190 Other P, P1 29.940 TOTAL AREA ORIGINAL 2006 MOTORPLEX DESIGN Atlas 14 24-hr S0 2-yr Rainfall=2.80"04.LaMettry - 061815 Printed 6/18/2015Prepared by Sathre-Bergquist, Inc. Page 4HydroCAD® 10.00-13 s/n 03665 © 2014 HydroCAD Software Solutions LLC Summary for Pond 14P: POND Inflow Area = 20.540 ac, 59.35% Impervious, Inflow Depth = 1.26" for 2-yr event Inflow = 29.32 cfs @ 12.16 hrs, Volume= 2.151 af Outflow = 2.26 cfs @ 13.63 hrs, Volume= 2.115 af, Atten= 92%, Lag= 88.3 min Primary = 2.26 cfs @ 13.63 hrs, Volume= 2.115 af Secondary = 0.00 cfs @ 0.00 hrs, Volume= 0.000 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-120.00 hrs, dt= 0.01 hrs / 2 Starting Elev= 906.00' Surf.Area= 51,912 sf Storage= 256,706 cf Peak Elev= 907.07' @ 13.63 hrs Surf.Area= 56,845 sf Storage= 314,908 cf (58,202 cf above start) Plug-Flow detention time= (not calculated: initial storage exceeds outflow) Center-of-Mass det. time= 694.8 min ( 1,510.4 - 815.5 ) Volume Invert Avail.Storage Storage Description #1 897.00' 499,920 cf 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 31,269 401,066 118,094 909.00 66,330 1,235.0 32,524 433,590 122,232 910.00 66,330 1,235.0 66,330 499,920 123,467 Device Routing Invert Outlet Devices #1 Secondary 910.50'120.0" W x 6.0" H Box RIP RAP OVERFLOW L= 25.0' Ke= 1.000 Inlet / Outlet Invert= 910.50' / 905.30' S= 0.2080 '/' Cc= 0.900 n= 0.035, Flow Area= 5.00 sf #2 Primary 905.20'27.0" Round OUTLET PIPE L= 30.0' RCP, mitered to conform to fill, Ke= 0.700 Inlet / Outlet Invert= 905.20' / 904.50' S= 0.0233 '/' Cc= 0.900 n= 0.013 Concrete pipe, straight & clean, Flow Area= 3.98 sf #3 Device 2 906.00'5' SLOTTED WIER, Cv= 2.62 (C= 3.28) 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 3 902.00'27.0" Round INLET PIPE L= 32.0' CMP, projecting, no headwall, Ke= 0.900 Inlet / Outlet Invert= 901.00' / 902.00' S= -0.0313 '/' Cc= 0.900 n= 0.030 Corrugated metal, Flow Area= 3.98 sf #5 Device 2 908.50'5.0" Horiz. Top Grate C= 0.600 Limited to weir flow at low heads #6 Secondary 908.50'Overland Overflow, Cv= 2.62 (C= 3.28) Head (feet) 0.00 0.50 0.50 1.00 Width (feet) 10.00 12.00 100.00 100.00 ORIGINAL 2006 MOTORPLEX DESIGN Atlas 14 24-hr S0 2-yr Rainfall=2.80"04.LaMettry - 061815 Printed 6/18/2015Prepared by Sathre-Bergquist, Inc. Page 5HydroCAD® 10.00-13 s/n 03665 © 2014 HydroCAD Software Solutions LLC Primary OutFlow Max=2.26 cfs @ 13.63 hrs HW=907.07' TW=0.00' (Dynamic Tailwater) 2=OUTLET PIPE (Passes 2.26 cfs of 14.52 cfs potential flow) 3=5' SLOTTED WIER (Weir Controls 2.26 cfs @ 2.43 fps) 4=INLET PIPE (Passes 2.26 cfs of 15.64 cfs potential flow) 5=Top Grate ( Controls 0.00 cfs) Secondary OutFlow Max=0.00 cfs @ 0.00 hrs HW=906.00' TW=0.00' (Dynamic Tailwater) 1=RIP RAP OVERFLOW ( Controls 0.00 cfs) 6=Overland Overflow ( Controls 0.00 cfs) Pond 14P: POND Inflow Outflow Primary Secondary Hydrograph Time (hours) 12011511010510095908580757065605550454035302520151050 Fl o w ( c f s ) 32 30 28 26 24 22 20 18 16 14 12 10 8 6 4 2 0 Inflow Area=20.540 ac Peak Elev=907.07' Storage=314,908 cf 29.32 cfs 2.26 cfs 2.26 cfs 0.00 cfs ORIGINAL 2006 MOTORPLEX DESIGN Atlas 14 24-hr S0 2-yr Rainfall=2.80"04.LaMettry - 061815 Printed 6/18/2015Prepared by Sathre-Bergquist, Inc. Page 6HydroCAD® 10.00-13 s/n 03665 © 2014 HydroCAD Software Solutions LLC Hydrograph for Pond 14P: POND Time (hours) Inflow (cfs) Storage (cubic-feet) Elevation (feet) Outflow (cfs) Primary (cfs) Secondary (cfs) 0.00 0.00 256,707 906.00 0.00 0.00 0.00 5.00 0.04 257,242 906.01 0.00 0.00 0.00 10.00 0.13 258,368 906.03 0.01 0.01 0.00 15.00 1.22 312,271 907.02 1.90 1.90 0.00 20.00 0.45 298,159 906.77 1.13 1.13 0.00 25.00 0.00 287,603 906.58 0.70 0.70 0.00 30.00 0.00 278,211 906.41 0.39 0.39 0.00 35.00 0.00 272,675 906.30 0.24 0.24 0.00 40.00 0.00 269,094 906.24 0.16 0.16 0.00 45.00 0.00 266,625 906.19 0.12 0.12 0.00 50.00 0.00 264,843 906.16 0.08 0.08 0.00 55.00 0.00 263,510 906.13 0.06 0.06 0.00 60.00 0.00 262,486 906.11 0.05 0.05 0.00 65.00 0.00 261,680 906.10 0.04 0.04 0.00 70.00 0.00 261,033 906.08 0.03 0.03 0.00 75.00 0.00 260,507 906.07 0.03 0.03 0.00 80.00 0.00 260,072 906.06 0.02 0.02 0.00 85.00 0.00 259,708 906.06 0.02 0.02 0.00 90.00 0.00 259,401 906.05 0.02 0.02 0.00 95.00 0.00 259,139 906.05 0.01 0.01 0.00 100.00 0.00 258,913 906.04 0.01 0.01 0.00 105.00 0.00 258,718 906.04 0.01 0.01 0.00 110.00 0.00 258,548 906.04 0.01 0.01 0.00 115.00 0.00 258,398 906.03 0.01 0.01 0.00 120.00 0.00 258,266 906.03 0.01 0.01 0.00 ORIGINAL 2006 MOTORPLEX DESIGN Atlas 14 24-hr S0 2-yr Rainfall=2.80"04.LaMettry - 061815 Printed 6/18/2015Prepared by Sathre-Bergquist, Inc. Page 7HydroCAD® 10.00-13 s/n 03665 © 2014 HydroCAD Software Solutions LLC Summary for Subcatchment P: POND SURFACE AREA Runoff = 5.68 cfs @ 11.93 hrs, Volume= 0.278 af, Depth= 2.80" Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-120.00 hrs, dt= 0.01 hrs Atlas 14 24-hr S0 2-yr Rainfall=2.80" Area (ac) CN Description * 1.190 100 1.190 100.00% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 0.3 255 12.70 Lake or Reservoir, POND Mean Depth= 5.01' Subcatchment P: POND SURFACE AREA Runoff Hydrograph Time (hours) 12011511010510095908580757065605550454035302520151050 Fl o w ( c f s ) 6 5 4 3 2 1 0 Atlas 14 24-hr S0 2-yr Rainfall=2.80" Runoff Area=1.190 ac Runoff Volume=0.278 af Runoff Depth=2.80" Flow Length=255' Tc=0.3 min CN=100 5.68 cfs ORIGINAL 2006 MOTORPLEX DESIGN Atlas 14 24-hr S0 2-yr Rainfall=2.80"04.LaMettry - 061815 Printed 6/18/2015Prepared by Sathre-Bergquist, Inc. Page 8HydroCAD® 10.00-13 s/n 03665 © 2014 HydroCAD Software Solutions LLC Hydrograph for Subcatchment P: POND SURFACE AREA Time (hours) Precip. (inches) Excess (inches) Runoff (cfs) 0.00 0.00 0.00 0.00 2.00 0.04 0.04 0.03 4.00 0.10 0.10 0.03 6.00 0.16 0.16 0.04 8.00 0.25 0.25 0.06 10.00 0.40 0.40 0.13 12.00 1.58 1.58 5.34 14.00 2.40 2.40 0.13 16.00 2.55 2.55 0.06 18.00 2.64 2.64 0.05 20.00 2.70 2.70 0.03 22.00 2.76 2.76 0.03 24.00 2.80 2.80 0.02 26.00 2.80 2.80 0.00 28.00 2.80 2.80 0.00 30.00 2.80 2.80 0.00 32.00 2.80 2.80 0.00 34.00 2.80 2.80 0.00 36.00 2.80 2.80 0.00 38.00 2.80 2.80 0.00 40.00 2.80 2.80 0.00 42.00 2.80 2.80 0.00 44.00 2.80 2.80 0.00 46.00 2.80 2.80 0.00 48.00 2.80 2.80 0.00 50.00 2.80 2.80 0.00 52.00 2.80 2.80 0.00 54.00 2.80 2.80 0.00 56.00 2.80 2.80 0.00 58.00 2.80 2.80 0.00 60.00 2.80 2.80 0.00 62.00 2.80 2.80 0.00 64.00 2.80 2.80 0.00 66.00 2.80 2.80 0.00 68.00 2.80 2.80 0.00 70.00 2.80 2.80 0.00 72.00 2.80 2.80 0.00 74.00 2.80 2.80 0.00 76.00 2.80 2.80 0.00 78.00 2.80 2.80 0.00 80.00 2.80 2.80 0.00 82.00 2.80 2.80 0.00 84.00 2.80 2.80 0.00 86.00 2.80 2.80 0.00 88.00 2.80 2.80 0.00 90.00 2.80 2.80 0.00 92.00 2.80 2.80 0.00 94.00 2.80 2.80 0.00 96.00 2.80 2.80 0.00 98.00 2.80 2.80 0.00 100.00 2.80 2.80 0.00 Time (hours) Precip. (inches) Excess (inches) Runoff (cfs) 102.00 2.80 2.80 0.00 104.00 2.80 2.80 0.00 106.00 2.80 2.80 0.00 108.00 2.80 2.80 0.00 110.00 2.80 2.80 0.00 112.00 2.80 2.80 0.00 114.00 2.80 2.80 0.00 116.00 2.80 2.80 0.00 118.00 2.80 2.80 0.00 120.00 2.80 2.80 0.00 ORIGINAL 2006 MOTORPLEX DESIGN Atlas 14 24-hr S0 2-yr Rainfall=2.80"04.LaMettry - 061815 Printed 6/18/2015Prepared by Sathre-Bergquist, Inc. Page 9HydroCAD® 10.00-13 s/n 03665 © 2014 HydroCAD Software Solutions LLC Summary for Subcatchment P1: POND INFLOW Runoff = 27.80 cfs @ 12.16 hrs, Volume= 1.873 af, Depth= 1.16" Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-120.00 hrs, dt= 0.01 hrs Atlas 14 24-hr S0 2-yr Rainfall=2.80" Area (ac) CN Description * 11.000 98 3.830 61 >75% Grass cover, Good, HSG B (UNGRADED) 4.520 58 Meadow, non-grazed, HSG B (UNGRADED) 19.350 81 Weighted Average 8.350 43.15% Pervious Area 11.000 56.85% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 11.5 123 0.0610 0.18 Sheet Flow, GRASS Grass: Dense n= 0.240 P2= 2.80" 0.8 61 0.0260 1.29 Sheet Flow, CURB Smooth surfaces n= 0.011 P2= 2.80" 1.3 875 0.0375 11.51 20.34 Pipe Channel, RCP 18.0" Round Area= 1.8 sf Perim= 4.7' r= 0.38' n= 0.013 Concrete pipe, straight & clean 13.6 1,059 Total Subcatchment P1: POND INFLOW Runoff Hydrograph Time (hours) 12011511010510095908580757065605550454035302520151050 Fl o w ( c f s ) 30 28 26 24 22 20 18 16 14 12 10 8 6 4 2 0 Atlas 14 24-hr S0 2-yr Rainfall=2.80" Runoff Area=19.350 ac Runoff Volume=1.873 af Runoff Depth=1.16" Flow Length=1,059' Tc=13.6 min CN=81 27.80 cfs ORIGINAL 2006 MOTORPLEX DESIGN Atlas 14 24-hr S0 2-yr Rainfall=2.80"04.LaMettry - 061815 Printed 6/18/2015Prepared by Sathre-Bergquist, Inc. Page 10HydroCAD® 10.00-13 s/n 03665 © 2014 HydroCAD Software Solutions LLC Hydrograph for Subcatchment P1: POND INFLOW Time (hours) Precip. (inches) Excess (inches) Runoff (cfs) 0.00 0.00 0.00 0.00 2.00 0.04 0.00 0.00 4.00 0.10 0.00 0.00 6.00 0.16 0.00 0.00 8.00 0.25 0.00 0.00 10.00 0.40 0.00 0.00 12.00 1.58 0.36 10.51 14.00 2.40 0.87 1.57 16.00 2.55 0.98 0.78 18.00 2.64 1.04 0.56 20.00 2.70 1.09 0.42 22.00 2.76 1.13 0.35 24.00 2.80 1.16 0.30 26.00 2.80 1.16 0.00 28.00 2.80 1.16 0.00 30.00 2.80 1.16 0.00 32.00 2.80 1.16 0.00 34.00 2.80 1.16 0.00 36.00 2.80 1.16 0.00 38.00 2.80 1.16 0.00 40.00 2.80 1.16 0.00 42.00 2.80 1.16 0.00 44.00 2.80 1.16 0.00 46.00 2.80 1.16 0.00 48.00 2.80 1.16 0.00 50.00 2.80 1.16 0.00 52.00 2.80 1.16 0.00 54.00 2.80 1.16 0.00 56.00 2.80 1.16 0.00 58.00 2.80 1.16 0.00 60.00 2.80 1.16 0.00 62.00 2.80 1.16 0.00 64.00 2.80 1.16 0.00 66.00 2.80 1.16 0.00 68.00 2.80 1.16 0.00 70.00 2.80 1.16 0.00 72.00 2.80 1.16 0.00 74.00 2.80 1.16 0.00 76.00 2.80 1.16 0.00 78.00 2.80 1.16 0.00 80.00 2.80 1.16 0.00 82.00 2.80 1.16 0.00 84.00 2.80 1.16 0.00 86.00 2.80 1.16 0.00 88.00 2.80 1.16 0.00 90.00 2.80 1.16 0.00 92.00 2.80 1.16 0.00 94.00 2.80 1.16 0.00 96.00 2.80 1.16 0.00 98.00 2.80 1.16 0.00 100.00 2.80 1.16 0.00 Time (hours) Precip. (inches) Excess (inches) Runoff (cfs) 102.00 2.80 1.16 0.00 104.00 2.80 1.16 0.00 106.00 2.80 1.16 0.00 108.00 2.80 1.16 0.00 110.00 2.80 1.16 0.00 112.00 2.80 1.16 0.00 114.00 2.80 1.16 0.00 116.00 2.80 1.16 0.00 118.00 2.80 1.16 0.00 120.00 2.80 1.16 0.00 ORIGINAL 2006 MOTORPLEX DESIGN Atlas 14 24-hr S0 2-yr Rainfall=2.80"04.LaMettry - 061815 Printed 6/18/2015Prepared by Sathre-Bergquist, Inc. Page 11HydroCAD® 10.00-13 s/n 03665 © 2014 HydroCAD Software Solutions LLC Summary for Link WET: WETLAND Inflow Area = 29.940 ac, 40.71% Impervious, Inflow Depth > 0.92" for 2-yr event Inflow = 2.67 cfs @ 13.25 hrs, Volume= 2.289 af Primary = 2.67 cfs @ 13.25 hrs, Volume= 2.289 af, Atten= 0%, Lag= 0.0 min Primary outflow = Inflow, Time Span= 0.00-120.00 hrs, dt= 0.01 hrs Link WET: WETLAND Inflow Primary Hydrograph Time (hours) 12011511010510095908580757065605550454035302520151050 Fl o w ( c f s ) 2 1 0 Inflow Area=29.940 ac 2.67 cfs 2.67 cfs ORIGINAL 2006 MOTORPLEX DESIGN Atlas 14 24-hr S0 2-yr Rainfall=2.80"04.LaMettry - 061815 Printed 6/18/2015Prepared by Sathre-Bergquist, Inc. Page 12HydroCAD® 10.00-13 s/n 03665 © 2014 HydroCAD Software Solutions LLC Hydrograph for Link WET: WETLAND Time (hours) Inflow (cfs) Elevation (feet) Primary (cfs) 0.00 0.00 0.00 0.00 2.00 0.00 0.00 0.00 4.00 0.00 0.00 0.00 6.00 0.00 0.00 0.00 8.00 0.00 0.00 0.00 10.00 0.01 0.00 0.01 12.00 0.17 0.00 0.17 14.00 2.46 0.00 2.46 16.00 1.82 0.00 1.82 18.00 1.48 0.00 1.48 20.00 1.21 0.00 1.21 22.00 1.00 0.00 1.00 24.00 0.85 0.00 0.85 26.00 0.61 0.00 0.61 28.00 0.48 0.00 0.48 30.00 0.39 0.00 0.39 32.00 0.32 0.00 0.32 34.00 0.26 0.00 0.26 36.00 0.22 0.00 0.22 38.00 0.19 0.00 0.19 40.00 0.16 0.00 0.16 42.00 0.14 0.00 0.14 44.00 0.12 0.00 0.12 46.00 0.11 0.00 0.11 48.00 0.10 0.00 0.10 50.00 0.08 0.00 0.08 52.00 0.08 0.00 0.08 54.00 0.07 0.00 0.07 56.00 0.06 0.00 0.06 58.00 0.06 0.00 0.06 60.00 0.05 0.00 0.05 62.00 0.05 0.00 0.05 64.00 0.04 0.00 0.04 66.00 0.04 0.00 0.04 68.00 0.04 0.00 0.04 70.00 0.03 0.00 0.03 72.00 0.03 0.00 0.03 74.00 0.03 0.00 0.03 76.00 0.03 0.00 0.03 78.00 0.02 0.00 0.02 80.00 0.02 0.00 0.02 82.00 0.02 0.00 0.02 84.00 0.02 0.00 0.02 86.00 0.02 0.00 0.02 88.00 0.02 0.00 0.02 90.00 0.02 0.00 0.02 92.00 0.01 0.00 0.01 94.00 0.01 0.00 0.01 96.00 0.01 0.00 0.01 98.00 0.01 0.00 0.01 100.00 0.01 0.00 0.01 Time (hours) Inflow (cfs) Elevation (feet) Primary (cfs) 102.00 0.01 0.00 0.01 104.00 0.01 0.00 0.01 106.00 0.01 0.00 0.01 108.00 0.01 0.00 0.01 110.00 0.01 0.00 0.01 112.00 0.01 0.00 0.01 114.00 0.01 0.00 0.01 116.00 0.01 0.00 0.01 118.00 0.01 0.00 0.01 120.00 0.01 0.00 0.01 ORIGINAL 2006 MOTORPLEX DESIGN Atlas 14 24-hr S0 2-yr Rainfall=2.80"04.LaMettry - 061815 Printed 6/18/2015Prepared by Sathre-Bergquist, Inc. Page 13HydroCAD® 10.00-13 s/n 03665 © 2014 HydroCAD Software Solutions LLC Summary for Subcatchment WET-(1): WETLAND INFLOW(1) Runoff = 0.53 cfs @ 12.52 hrs, Volume= 0.102 af, Depth= 0.21" Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-120.00 hrs, dt= 0.01 hrs Atlas 14 24-hr S0 2-yr Rainfall=2.80" Area (ac) CN Description 5.750 58 Meadow, non-grazed, HSG B 5.750 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 21.1 300 0.0800 0.24 Sheet Flow, GRASS Grass: Dense n= 0.240 P2= 2.80" 3.4 569 0.0343 2.78 Shallow Concentrated Flow, Grassed Waterway Kv= 15.0 fps 24.5 869 Total Subcatchment WET-(1): WETLAND INFLOW(1) Runoff Hydrograph Time (hours) 12011511010510095908580757065605550454035302520151050 Fl o w ( c f s ) 0.55 0.5 0.45 0.4 0.35 0.3 0.25 0.2 0.15 0.1 0.05 0 Atlas 14 24-hr S0 2-yr Rainfall=2.80" Runoff Area=5.750 ac Runoff Volume=0.102 af Runoff Depth=0.21" Flow Length=869' Tc=24.5 min CN=58 0.53 cfs ORIGINAL 2006 MOTORPLEX DESIGN Atlas 14 24-hr S0 2-yr Rainfall=2.80"04.LaMettry - 061815 Printed 6/18/2015Prepared by Sathre-Bergquist, Inc. Page 14HydroCAD® 10.00-13 s/n 03665 © 2014 HydroCAD Software Solutions LLC Hydrograph for Subcatchment WET-(1): WETLAND INFLOW(1) Time (hours) Precip. (inches) Excess (inches) Runoff (cfs) 0.00 0.00 0.00 0.00 2.00 0.04 0.00 0.00 4.00 0.10 0.00 0.00 6.00 0.16 0.00 0.00 8.00 0.25 0.00 0.00 10.00 0.40 0.00 0.00 12.00 1.58 0.00 0.00 14.00 2.40 0.11 0.16 16.00 2.55 0.15 0.08 18.00 2.64 0.17 0.06 20.00 2.70 0.19 0.05 22.00 2.76 0.20 0.04 24.00 2.80 0.21 0.04 26.00 2.80 0.21 0.00 28.00 2.80 0.21 0.00 30.00 2.80 0.21 0.00 32.00 2.80 0.21 0.00 34.00 2.80 0.21 0.00 36.00 2.80 0.21 0.00 38.00 2.80 0.21 0.00 40.00 2.80 0.21 0.00 42.00 2.80 0.21 0.00 44.00 2.80 0.21 0.00 46.00 2.80 0.21 0.00 48.00 2.80 0.21 0.00 50.00 2.80 0.21 0.00 52.00 2.80 0.21 0.00 54.00 2.80 0.21 0.00 56.00 2.80 0.21 0.00 58.00 2.80 0.21 0.00 60.00 2.80 0.21 0.00 62.00 2.80 0.21 0.00 64.00 2.80 0.21 0.00 66.00 2.80 0.21 0.00 68.00 2.80 0.21 0.00 70.00 2.80 0.21 0.00 72.00 2.80 0.21 0.00 74.00 2.80 0.21 0.00 76.00 2.80 0.21 0.00 78.00 2.80 0.21 0.00 80.00 2.80 0.21 0.00 82.00 2.80 0.21 0.00 84.00 2.80 0.21 0.00 86.00 2.80 0.21 0.00 88.00 2.80 0.21 0.00 90.00 2.80 0.21 0.00 92.00 2.80 0.21 0.00 94.00 2.80 0.21 0.00 96.00 2.80 0.21 0.00 98.00 2.80 0.21 0.00 100.00 2.80 0.21 0.00 Time (hours) Precip. (inches) Excess (inches) Runoff (cfs) 102.00 2.80 0.21 0.00 104.00 2.80 0.21 0.00 106.00 2.80 0.21 0.00 108.00 2.80 0.21 0.00 110.00 2.80 0.21 0.00 112.00 2.80 0.21 0.00 114.00 2.80 0.21 0.00 116.00 2.80 0.21 0.00 118.00 2.80 0.21 0.00 120.00 2.80 0.21 0.00 ORIGINAL 2006 MOTORPLEX DESIGN Atlas 14 24-hr S0 2-yr Rainfall=2.80"04.LaMettry - 061815 Printed 6/18/2015Prepared by Sathre-Bergquist, Inc. Page 15HydroCAD® 10.00-13 s/n 03665 © 2014 HydroCAD Software Solutions LLC Summary for Subcatchment WET-(2): WETLAND INFLOW(2) Runoff = 0.41 cfs @ 12.50 hrs, Volume= 0.072 af, Depth= 0.24" Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-120.00 hrs, dt= 0.01 hrs Atlas 14 24-hr S0 2-yr Rainfall=2.80" Area (ac) CN Description 3.010 58 Meadow, non-grazed, HSG B 0.640 61 >75% Grass cover, Good, HSG B 3.650 59 Weighted Average 3.650 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 23.7 300 0.0600 0.21 Sheet Flow, GRASS Grass: Dense n= 0.240 P2= 2.80" 0.3 89 0.1350 5.51 Shallow Concentrated Flow, Grassed Waterway Kv= 15.0 fps 24.0 389 Total Subcatchment WET-(2): WETLAND INFLOW(2) Runoff Hydrograph Time (hours) 12011511010510095908580757065605550454035302520151050 Fl o w ( c f s ) 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 Atlas 14 24-hr S0 2-yr Rainfall=2.80" Runoff Area=3.650 ac Runoff Volume=0.072 af Runoff Depth=0.24" Flow Length=389' Tc=24.0 min CN=59 0.41 cfs ORIGINAL 2006 MOTORPLEX DESIGN Atlas 14 24-hr S0 2-yr Rainfall=2.80"04.LaMettry - 061815 Printed 6/18/2015Prepared by Sathre-Bergquist, Inc. Page 16HydroCAD® 10.00-13 s/n 03665 © 2014 HydroCAD Software Solutions LLC Hydrograph for Subcatchment WET-(2): WETLAND INFLOW(2) Time (hours) Precip. (inches) Excess (inches) Runoff (cfs) 0.00 0.00 0.00 0.00 2.00 0.04 0.00 0.00 4.00 0.10 0.00 0.00 6.00 0.16 0.00 0.00 8.00 0.25 0.00 0.00 10.00 0.40 0.00 0.00 12.00 1.58 0.00 0.00 14.00 2.40 0.13 0.11 16.00 2.55 0.17 0.06 18.00 2.64 0.19 0.04 20.00 2.70 0.21 0.03 22.00 2.76 0.22 0.03 24.00 2.80 0.24 0.02 26.00 2.80 0.24 0.00 28.00 2.80 0.24 0.00 30.00 2.80 0.24 0.00 32.00 2.80 0.24 0.00 34.00 2.80 0.24 0.00 36.00 2.80 0.24 0.00 38.00 2.80 0.24 0.00 40.00 2.80 0.24 0.00 42.00 2.80 0.24 0.00 44.00 2.80 0.24 0.00 46.00 2.80 0.24 0.00 48.00 2.80 0.24 0.00 50.00 2.80 0.24 0.00 52.00 2.80 0.24 0.00 54.00 2.80 0.24 0.00 56.00 2.80 0.24 0.00 58.00 2.80 0.24 0.00 60.00 2.80 0.24 0.00 62.00 2.80 0.24 0.00 64.00 2.80 0.24 0.00 66.00 2.80 0.24 0.00 68.00 2.80 0.24 0.00 70.00 2.80 0.24 0.00 72.00 2.80 0.24 0.00 74.00 2.80 0.24 0.00 76.00 2.80 0.24 0.00 78.00 2.80 0.24 0.00 80.00 2.80 0.24 0.00 82.00 2.80 0.24 0.00 84.00 2.80 0.24 0.00 86.00 2.80 0.24 0.00 88.00 2.80 0.24 0.00 90.00 2.80 0.24 0.00 92.00 2.80 0.24 0.00 94.00 2.80 0.24 0.00 96.00 2.80 0.24 0.00 98.00 2.80 0.24 0.00 100.00 2.80 0.24 0.00 Time (hours) Precip. (inches) Excess (inches) Runoff (cfs) 102.00 2.80 0.24 0.00 104.00 2.80 0.24 0.00 106.00 2.80 0.24 0.00 108.00 2.80 0.24 0.00 110.00 2.80 0.24 0.00 112.00 2.80 0.24 0.00 114.00 2.80 0.24 0.00 116.00 2.80 0.24 0.00 118.00 2.80 0.24 0.00 120.00 2.80 0.24 0.00 ORIGINAL 2006 MOTORPLEX DESIGN Atlas 14 24-hr S0 10-yr Rainfall=4.20"04.LaMettry - 061815 Printed 6/18/2015Prepared by Sathre-Bergquist, Inc. Page 17HydroCAD® 10.00-13 s/n 03665 © 2014 HydroCAD Software Solutions LLC Summary for Pond 14P: POND Inflow Area = 20.540 ac, 59.35% Impervious, Inflow Depth = 2.40" for 10-yr event Inflow = 58.32 cfs @ 12.15 hrs, Volume= 4.110 af Outflow = 12.54 cfs @ 12.69 hrs, Volume= 4.074 af, Atten= 78%, Lag= 32.5 min Primary = 12.54 cfs @ 12.69 hrs, Volume= 4.074 af Secondary = 0.00 cfs @ 0.00 hrs, Volume= 0.000 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-120.00 hrs, dt= 0.01 hrs / 2 Starting Elev= 906.00' Surf.Area= 51,912 sf Storage= 256,706 cf Peak Elev= 907.70' @ 12.69 hrs Surf.Area= 59,838 sf Storage= 351,479 cf (94,772 cf above start) Plug-Flow detention time= (not calculated: initial storage exceeds outflow) Center-of-Mass det. time= 424.7 min ( 1,218.9 - 794.3 ) Volume Invert Avail.Storage Storage Description #1 897.00' 499,920 cf 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 31,269 401,066 118,094 909.00 66,330 1,235.0 32,524 433,590 122,232 910.00 66,330 1,235.0 66,330 499,920 123,467 Device Routing Invert Outlet Devices #1 Secondary 910.50'120.0" W x 6.0" H Box RIP RAP OVERFLOW L= 25.0' Ke= 1.000 Inlet / Outlet Invert= 910.50' / 905.30' S= 0.2080 '/' Cc= 0.900 n= 0.035, Flow Area= 5.00 sf #2 Primary 905.20'27.0" Round OUTLET PIPE L= 30.0' RCP, mitered to conform to fill, Ke= 0.700 Inlet / Outlet Invert= 905.20' / 904.50' S= 0.0233 '/' Cc= 0.900 n= 0.013 Concrete pipe, straight & clean, Flow Area= 3.98 sf #3 Device 2 906.00'5' SLOTTED WIER, Cv= 2.62 (C= 3.28) 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 3 902.00'27.0" Round INLET PIPE L= 32.0' CMP, projecting, no headwall, Ke= 0.900 Inlet / Outlet Invert= 901.00' / 902.00' S= -0.0313 '/' Cc= 0.900 n= 0.030 Corrugated metal, Flow Area= 3.98 sf #5 Device 2 908.50'5.0" Horiz. Top Grate C= 0.600 Limited to weir flow at low heads #6 Secondary 908.50'Overland Overflow, Cv= 2.62 (C= 3.28) Head (feet) 0.00 0.50 0.50 1.00 Width (feet) 10.00 12.00 100.00 100.00 ORIGINAL 2006 MOTORPLEX DESIGN Atlas 14 24-hr S0 10-yr Rainfall=4.20"04.LaMettry - 061815 Printed 6/18/2015Prepared by Sathre-Bergquist, Inc. Page 18HydroCAD® 10.00-13 s/n 03665 © 2014 HydroCAD Software Solutions LLC Primary OutFlow Max=12.54 cfs @ 12.69 hrs HW=907.70' TW=0.00' (Dynamic Tailwater) 2=OUTLET PIPE (Passes 12.54 cfs of 19.79 cfs potential flow) 3=5' SLOTTED WIER (Weir Controls 12.54 cfs @ 3.09 fps) 4=INLET PIPE (Passes 12.54 cfs of 19.69 cfs potential flow) 5=Top Grate ( Controls 0.00 cfs) Secondary OutFlow Max=0.00 cfs @ 0.00 hrs HW=906.00' TW=0.00' (Dynamic Tailwater) 1=RIP RAP OVERFLOW ( Controls 0.00 cfs) 6=Overland Overflow ( Controls 0.00 cfs) Pond 14P: POND Inflow Outflow Primary Secondary Hydrograph Time (hours) 12011511010510095908580757065605550454035302520151050 Fl o w ( c f s ) 65 60 55 50 45 40 35 30 25 20 15 10 5 0 Inflow Area=20.540 ac Peak Elev=907.70' Storage=351,479 cf 58.32 cfs 12.54 cfs 12.54 cfs 0.00 cfs ORIGINAL 2006 MOTORPLEX DESIGN Atlas 14 24-hr S0 10-yr Rainfall=4.20"04.LaMettry - 061815 Printed 6/18/2015Prepared by Sathre-Bergquist, Inc. Page 19HydroCAD® 10.00-13 s/n 03665 © 2014 HydroCAD Software Solutions LLC Hydrograph for Pond 14P: POND Time (hours) Inflow (cfs) Storage (cubic-feet) Elevation (feet) Outflow (cfs) Primary (cfs) Secondary (cfs) 0.00 0.00 256,707 906.00 0.00 0.00 0.00 5.00 0.04 257,244 906.01 0.00 0.00 0.00 10.00 0.32 259,027 906.04 0.01 0.01 0.00 15.00 2.28 324,563 907.24 4.21 4.21 0.00 20.00 0.52 304,484 906.89 1.43 1.43 0.00 25.00 0.00 291,008 906.64 0.83 0.83 0.00 30.00 0.00 280,075 906.44 0.44 0.44 0.00 35.00 0.00 273,824 906.33 0.27 0.27 0.00 40.00 0.00 269,859 906.25 0.18 0.18 0.00 45.00 0.00 267,164 906.20 0.13 0.13 0.00 50.00 0.00 265,238 906.16 0.09 0.09 0.00 55.00 0.00 263,809 906.14 0.07 0.07 0.00 60.00 0.00 262,718 906.12 0.05 0.05 0.00 65.00 0.00 261,864 906.10 0.04 0.04 0.00 70.00 0.00 261,182 906.09 0.03 0.03 0.00 75.00 0.00 260,629 906.08 0.03 0.03 0.00 80.00 0.00 260,173 906.07 0.02 0.02 0.00 85.00 0.00 259,793 906.06 0.02 0.02 0.00 90.00 0.00 259,473 906.05 0.02 0.02 0.00 95.00 0.00 259,200 906.05 0.01 0.01 0.00 100.00 0.00 258,966 906.04 0.01 0.01 0.00 105.00 0.00 258,764 906.04 0.01 0.01 0.00 110.00 0.00 258,588 906.04 0.01 0.01 0.00 115.00 0.00 258,434 906.03 0.01 0.01 0.00 120.00 0.00 258,297 906.03 0.01 0.01 0.00 ORIGINAL 2006 MOTORPLEX DESIGN Atlas 14 24-hr S0 10-yr Rainfall=4.20"04.LaMettry - 061815 Printed 6/18/2015Prepared by Sathre-Bergquist, Inc. Page 20HydroCAD® 10.00-13 s/n 03665 © 2014 HydroCAD Software Solutions LLC Summary for Subcatchment P: POND SURFACE AREA Runoff = 8.41 cfs @ 11.99 hrs, Volume= 0.416 af, Depth= 4.20" Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-120.00 hrs, dt= 0.01 hrs Atlas 14 24-hr S0 10-yr Rainfall=4.20" Area (ac) CN Description * 1.190 100 1.190 100.00% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 0.3 255 12.70 Lake or Reservoir, POND Mean Depth= 5.01' Subcatchment P: POND SURFACE AREA Runoff Hydrograph Time (hours) 12011511010510095908580757065605550454035302520151050 Fl o w ( c f s ) 9 8 7 6 5 4 3 2 1 0 Atlas 14 24-hr S0 10-yr Rainfall=4.20" Runoff Area=1.190 ac Runoff Volume=0.416 af Runoff Depth=4.20" Flow Length=255' Tc=0.3 min CN=100 8.41 cfs ORIGINAL 2006 MOTORPLEX DESIGN Atlas 14 24-hr S0 10-yr Rainfall=4.20"04.LaMettry - 061815 Printed 6/18/2015Prepared by Sathre-Bergquist, Inc. Page 21HydroCAD® 10.00-13 s/n 03665 © 2014 HydroCAD Software Solutions LLC Hydrograph for Subcatchment P: POND SURFACE AREA Time (hours) Precip. (inches) Excess (inches) Runoff (cfs) 0.00 0.00 0.00 0.00 2.00 0.04 0.04 0.03 4.00 0.10 0.10 0.03 6.00 0.16 0.16 0.05 8.00 0.30 0.30 0.10 10.00 0.55 0.55 0.21 12.00 2.36 2.36 7.92 14.00 3.66 3.66 0.21 16.00 3.90 3.90 0.10 18.00 4.04 4.04 0.07 20.00 4.10 4.10 0.03 22.00 4.16 4.16 0.03 24.00 4.20 4.20 0.02 26.00 4.20 4.20 0.00 28.00 4.20 4.20 0.00 30.00 4.20 4.20 0.00 32.00 4.20 4.20 0.00 34.00 4.20 4.20 0.00 36.00 4.20 4.20 0.00 38.00 4.20 4.20 0.00 40.00 4.20 4.20 0.00 42.00 4.20 4.20 0.00 44.00 4.20 4.20 0.00 46.00 4.20 4.20 0.00 48.00 4.20 4.20 0.00 50.00 4.20 4.20 0.00 52.00 4.20 4.20 0.00 54.00 4.20 4.20 0.00 56.00 4.20 4.20 0.00 58.00 4.20 4.20 0.00 60.00 4.20 4.20 0.00 62.00 4.20 4.20 0.00 64.00 4.20 4.20 0.00 66.00 4.20 4.20 0.00 68.00 4.20 4.20 0.00 70.00 4.20 4.20 0.00 72.00 4.20 4.20 0.00 74.00 4.20 4.20 0.00 76.00 4.20 4.20 0.00 78.00 4.20 4.20 0.00 80.00 4.20 4.20 0.00 82.00 4.20 4.20 0.00 84.00 4.20 4.20 0.00 86.00 4.20 4.20 0.00 88.00 4.20 4.20 0.00 90.00 4.20 4.20 0.00 92.00 4.20 4.20 0.00 94.00 4.20 4.20 0.00 96.00 4.20 4.20 0.00 98.00 4.20 4.20 0.00 100.00 4.20 4.20 0.00 Time (hours) Precip. (inches) Excess (inches) Runoff (cfs) 102.00 4.20 4.20 0.00 104.00 4.20 4.20 0.00 106.00 4.20 4.20 0.00 108.00 4.20 4.20 0.00 110.00 4.20 4.20 0.00 112.00 4.20 4.20 0.00 114.00 4.20 4.20 0.00 116.00 4.20 4.20 0.00 118.00 4.20 4.20 0.00 120.00 4.20 4.20 0.00 ORIGINAL 2006 MOTORPLEX DESIGN Atlas 14 24-hr S0 10-yr Rainfall=4.20"04.LaMettry - 061815 Printed 6/18/2015Prepared by Sathre-Bergquist, Inc. Page 22HydroCAD® 10.00-13 s/n 03665 © 2014 HydroCAD Software Solutions LLC Summary for Subcatchment P1: POND INFLOW Runoff = 56.00 cfs @ 12.15 hrs, Volume= 3.694 af, Depth= 2.29" Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-120.00 hrs, dt= 0.01 hrs Atlas 14 24-hr S0 10-yr Rainfall=4.20" Area (ac) CN Description * 11.000 98 3.830 61 >75% Grass cover, Good, HSG B (UNGRADED) 4.520 58 Meadow, non-grazed, HSG B (UNGRADED) 19.350 81 Weighted Average 8.350 43.15% Pervious Area 11.000 56.85% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 11.5 123 0.0610 0.18 Sheet Flow, GRASS Grass: Dense n= 0.240 P2= 2.80" 0.8 61 0.0260 1.29 Sheet Flow, CURB Smooth surfaces n= 0.011 P2= 2.80" 1.3 875 0.0375 11.51 20.34 Pipe Channel, RCP 18.0" Round Area= 1.8 sf Perim= 4.7' r= 0.38' n= 0.013 Concrete pipe, straight & clean 13.6 1,059 Total Subcatchment P1: POND INFLOW Runoff Hydrograph Time (hours) 12011511010510095908580757065605550454035302520151050 Fl o w ( c f s ) 60 55 50 45 40 35 30 25 20 15 10 5 0 Atlas 14 24-hr S0 10-yr Rainfall=4.20" Runoff Area=19.350 ac Runoff Volume=3.694 af Runoff Depth=2.29" Flow Length=1,059' Tc=13.6 min CN=81 56.00 cfs ORIGINAL 2006 MOTORPLEX DESIGN Atlas 14 24-hr S0 10-yr Rainfall=4.20"04.LaMettry - 061815 Printed 6/18/2015Prepared by Sathre-Bergquist, Inc. Page 23HydroCAD® 10.00-13 s/n 03665 © 2014 HydroCAD Software Solutions LLC Hydrograph for Subcatchment P1: POND INFLOW Time (hours) Precip. (inches) Excess (inches) Runoff (cfs) 0.00 0.00 0.00 0.00 2.00 0.04 0.00 0.00 4.00 0.10 0.00 0.00 6.00 0.16 0.00 0.00 8.00 0.30 0.00 0.00 10.00 0.55 0.00 0.11 12.00 2.36 0.84 24.09 14.00 3.66 1.84 2.98 16.00 3.90 2.04 1.43 18.00 4.04 2.15 1.02 20.00 4.10 2.21 0.49 22.00 4.16 2.25 0.40 24.00 4.20 2.29 0.34 26.00 4.20 2.29 0.00 28.00 4.20 2.29 0.00 30.00 4.20 2.29 0.00 32.00 4.20 2.29 0.00 34.00 4.20 2.29 0.00 36.00 4.20 2.29 0.00 38.00 4.20 2.29 0.00 40.00 4.20 2.29 0.00 42.00 4.20 2.29 0.00 44.00 4.20 2.29 0.00 46.00 4.20 2.29 0.00 48.00 4.20 2.29 0.00 50.00 4.20 2.29 0.00 52.00 4.20 2.29 0.00 54.00 4.20 2.29 0.00 56.00 4.20 2.29 0.00 58.00 4.20 2.29 0.00 60.00 4.20 2.29 0.00 62.00 4.20 2.29 0.00 64.00 4.20 2.29 0.00 66.00 4.20 2.29 0.00 68.00 4.20 2.29 0.00 70.00 4.20 2.29 0.00 72.00 4.20 2.29 0.00 74.00 4.20 2.29 0.00 76.00 4.20 2.29 0.00 78.00 4.20 2.29 0.00 80.00 4.20 2.29 0.00 82.00 4.20 2.29 0.00 84.00 4.20 2.29 0.00 86.00 4.20 2.29 0.00 88.00 4.20 2.29 0.00 90.00 4.20 2.29 0.00 92.00 4.20 2.29 0.00 94.00 4.20 2.29 0.00 96.00 4.20 2.29 0.00 98.00 4.20 2.29 0.00 100.00 4.20 2.29 0.00 Time (hours) Precip. (inches) Excess (inches) Runoff (cfs) 102.00 4.20 2.29 0.00 104.00 4.20 2.29 0.00 106.00 4.20 2.29 0.00 108.00 4.20 2.29 0.00 110.00 4.20 2.29 0.00 112.00 4.20 2.29 0.00 114.00 4.20 2.29 0.00 116.00 4.20 2.29 0.00 118.00 4.20 2.29 0.00 120.00 4.20 2.29 0.00 ORIGINAL 2006 MOTORPLEX DESIGN Atlas 14 24-hr S0 10-yr Rainfall=4.20"04.LaMettry - 061815 Printed 6/18/2015Prepared by Sathre-Bergquist, Inc. Page 24HydroCAD® 10.00-13 s/n 03665 © 2014 HydroCAD Software Solutions LLC Summary for Link WET: WETLAND Inflow Area = 29.940 ac, 40.71% Impervious, Inflow Depth > 1.88" for 10-yr event Inflow = 16.56 cfs @ 12.55 hrs, Volume= 4.683 af Primary = 16.56 cfs @ 12.55 hrs, Volume= 4.683 af, Atten= 0%, Lag= 0.0 min Primary outflow = Inflow, Time Span= 0.00-120.00 hrs, dt= 0.01 hrs Link WET: WETLAND Inflow Primary Hydrograph Time (hours) 12011511010510095908580757065605550454035302520151050 Fl o w ( c f s ) 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 Inflow Area=29.940 ac 16.56 cfs 16.56 cfs ORIGINAL 2006 MOTORPLEX DESIGN Atlas 14 24-hr S0 10-yr Rainfall=4.20"04.LaMettry - 061815 Printed 6/18/2015Prepared by Sathre-Bergquist, Inc. Page 25HydroCAD® 10.00-13 s/n 03665 © 2014 HydroCAD Software Solutions LLC Hydrograph for Link WET: WETLAND Time (hours) Inflow (cfs) Elevation (feet) Primary (cfs) 0.00 0.00 0.00 0.00 2.00 0.00 0.00 0.00 4.00 0.00 0.00 0.00 6.00 0.00 0.00 0.00 8.00 0.01 0.00 0.01 10.00 0.01 0.00 0.01 12.00 0.82 0.00 0.82 14.00 7.59 0.00 7.59 16.00 3.26 0.00 3.26 18.00 2.10 0.00 2.10 20.00 1.56 0.00 1.56 22.00 1.26 0.00 1.26 24.00 1.04 0.00 1.04 26.00 0.72 0.00 0.72 28.00 0.56 0.00 0.56 30.00 0.44 0.00 0.44 32.00 0.36 0.00 0.36 34.00 0.30 0.00 0.30 36.00 0.25 0.00 0.25 38.00 0.21 0.00 0.21 40.00 0.18 0.00 0.18 42.00 0.15 0.00 0.15 44.00 0.13 0.00 0.13 46.00 0.12 0.00 0.12 48.00 0.10 0.00 0.10 50.00 0.09 0.00 0.09 52.00 0.08 0.00 0.08 54.00 0.07 0.00 0.07 56.00 0.07 0.00 0.07 58.00 0.06 0.00 0.06 60.00 0.05 0.00 0.05 62.00 0.05 0.00 0.05 64.00 0.04 0.00 0.04 66.00 0.04 0.00 0.04 68.00 0.04 0.00 0.04 70.00 0.03 0.00 0.03 72.00 0.03 0.00 0.03 74.00 0.03 0.00 0.03 76.00 0.03 0.00 0.03 78.00 0.02 0.00 0.02 80.00 0.02 0.00 0.02 82.00 0.02 0.00 0.02 84.00 0.02 0.00 0.02 86.00 0.02 0.00 0.02 88.00 0.02 0.00 0.02 90.00 0.02 0.00 0.02 92.00 0.02 0.00 0.02 94.00 0.01 0.00 0.01 96.00 0.01 0.00 0.01 98.00 0.01 0.00 0.01 100.00 0.01 0.00 0.01 Time (hours) Inflow (cfs) Elevation (feet) Primary (cfs) 102.00 0.01 0.00 0.01 104.00 0.01 0.00 0.01 106.00 0.01 0.00 0.01 108.00 0.01 0.00 0.01 110.00 0.01 0.00 0.01 112.00 0.01 0.00 0.01 114.00 0.01 0.00 0.01 116.00 0.01 0.00 0.01 118.00 0.01 0.00 0.01 120.00 0.01 0.00 0.01 ORIGINAL 2006 MOTORPLEX DESIGN Atlas 14 24-hr S0 10-yr Rainfall=4.20"04.LaMettry - 061815 Printed 6/18/2015Prepared by Sathre-Bergquist, Inc. Page 26HydroCAD® 10.00-13 s/n 03665 © 2014 HydroCAD Software Solutions LLC Summary for Subcatchment WET-(1): WETLAND INFLOW(1) Runoff = 3.23 cfs @ 12.38 hrs, Volume= 0.363 af, Depth= 0.76" Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-120.00 hrs, dt= 0.01 hrs Atlas 14 24-hr S0 10-yr Rainfall=4.20" Area (ac) CN Description 5.750 58 Meadow, non-grazed, HSG B 5.750 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 21.1 300 0.0800 0.24 Sheet Flow, GRASS Grass: Dense n= 0.240 P2= 2.80" 3.4 569 0.0343 2.78 Shallow Concentrated Flow, Grassed Waterway Kv= 15.0 fps 24.5 869 Total Subcatchment WET-(1): WETLAND INFLOW(1) Runoff Hydrograph Time (hours) 12011511010510095908580757065605550454035302520151050 Fl o w ( c f s ) 3 2 1 0 Atlas 14 24-hr S0 10-yr Rainfall=4.20" Runoff Area=5.750 ac Runoff Volume=0.363 af Runoff Depth=0.76" Flow Length=869' Tc=24.5 min CN=58 3.23 cfs ORIGINAL 2006 MOTORPLEX DESIGN Atlas 14 24-hr S0 10-yr Rainfall=4.20"04.LaMettry - 061815 Printed 6/18/2015Prepared by Sathre-Bergquist, Inc. Page 27HydroCAD® 10.00-13 s/n 03665 © 2014 HydroCAD Software Solutions LLC Hydrograph for Subcatchment WET-(1): WETLAND INFLOW(1) Time (hours) Precip. (inches) Excess (inches) Runoff (cfs) 0.00 0.00 0.00 0.00 2.00 0.04 0.00 0.00 4.00 0.10 0.00 0.00 6.00 0.16 0.00 0.00 8.00 0.30 0.00 0.00 10.00 0.55 0.00 0.00 12.00 2.36 0.10 0.08 14.00 3.66 0.52 0.50 16.00 3.90 0.62 0.23 18.00 4.04 0.68 0.17 20.00 4.10 0.71 0.08 22.00 4.16 0.74 0.07 24.00 4.20 0.76 0.06 26.00 4.20 0.76 0.00 28.00 4.20 0.76 0.00 30.00 4.20 0.76 0.00 32.00 4.20 0.76 0.00 34.00 4.20 0.76 0.00 36.00 4.20 0.76 0.00 38.00 4.20 0.76 0.00 40.00 4.20 0.76 0.00 42.00 4.20 0.76 0.00 44.00 4.20 0.76 0.00 46.00 4.20 0.76 0.00 48.00 4.20 0.76 0.00 50.00 4.20 0.76 0.00 52.00 4.20 0.76 0.00 54.00 4.20 0.76 0.00 56.00 4.20 0.76 0.00 58.00 4.20 0.76 0.00 60.00 4.20 0.76 0.00 62.00 4.20 0.76 0.00 64.00 4.20 0.76 0.00 66.00 4.20 0.76 0.00 68.00 4.20 0.76 0.00 70.00 4.20 0.76 0.00 72.00 4.20 0.76 0.00 74.00 4.20 0.76 0.00 76.00 4.20 0.76 0.00 78.00 4.20 0.76 0.00 80.00 4.20 0.76 0.00 82.00 4.20 0.76 0.00 84.00 4.20 0.76 0.00 86.00 4.20 0.76 0.00 88.00 4.20 0.76 0.00 90.00 4.20 0.76 0.00 92.00 4.20 0.76 0.00 94.00 4.20 0.76 0.00 96.00 4.20 0.76 0.00 98.00 4.20 0.76 0.00 100.00 4.20 0.76 0.00 Time (hours) Precip. (inches) Excess (inches) Runoff (cfs) 102.00 4.20 0.76 0.00 104.00 4.20 0.76 0.00 106.00 4.20 0.76 0.00 108.00 4.20 0.76 0.00 110.00 4.20 0.76 0.00 112.00 4.20 0.76 0.00 114.00 4.20 0.76 0.00 116.00 4.20 0.76 0.00 118.00 4.20 0.76 0.00 120.00 4.20 0.76 0.00 ORIGINAL 2006 MOTORPLEX DESIGN Atlas 14 24-hr S0 10-yr Rainfall=4.20"04.LaMettry - 061815 Printed 6/18/2015Prepared by Sathre-Bergquist, Inc. Page 28HydroCAD® 10.00-13 s/n 03665 © 2014 HydroCAD Software Solutions LLC Summary for Subcatchment WET-(2): WETLAND INFLOW(2) Runoff = 2.27 cfs @ 12.36 hrs, Volume= 0.246 af, Depth= 0.81" Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-120.00 hrs, dt= 0.01 hrs Atlas 14 24-hr S0 10-yr Rainfall=4.20" Area (ac) CN Description 3.010 58 Meadow, non-grazed, HSG B 0.640 61 >75% Grass cover, Good, HSG B 3.650 59 Weighted Average 3.650 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 23.7 300 0.0600 0.21 Sheet Flow, GRASS Grass: Dense n= 0.240 P2= 2.80" 0.3 89 0.1350 5.51 Shallow Concentrated Flow, Grassed Waterway Kv= 15.0 fps 24.0 389 Total Subcatchment WET-(2): WETLAND INFLOW(2) Runoff Hydrograph Time (hours) 12011511010510095908580757065605550454035302520151050 Fl o w ( c f s ) 2 1 0 Atlas 14 24-hr S0 10-yr Rainfall=4.20" Runoff Area=3.650 ac Runoff Volume=0.246 af Runoff Depth=0.81" Flow Length=389' Tc=24.0 min CN=59 2.27 cfs ORIGINAL 2006 MOTORPLEX DESIGN Atlas 14 24-hr S0 10-yr Rainfall=4.20"04.LaMettry - 061815 Printed 6/18/2015Prepared by Sathre-Bergquist, Inc. Page 29HydroCAD® 10.00-13 s/n 03665 © 2014 HydroCAD Software Solutions LLC Hydrograph for Subcatchment WET-(2): WETLAND INFLOW(2) Time (hours) Precip. (inches) Excess (inches) Runoff (cfs) 0.00 0.00 0.00 0.00 2.00 0.04 0.00 0.00 4.00 0.10 0.00 0.00 6.00 0.16 0.00 0.00 8.00 0.30 0.00 0.00 10.00 0.55 0.00 0.00 12.00 2.36 0.12 0.08 14.00 3.66 0.56 0.33 16.00 3.90 0.67 0.15 18.00 4.04 0.73 0.11 20.00 4.10 0.76 0.05 22.00 4.16 0.79 0.04 24.00 4.20 0.81 0.04 26.00 4.20 0.81 0.00 28.00 4.20 0.81 0.00 30.00 4.20 0.81 0.00 32.00 4.20 0.81 0.00 34.00 4.20 0.81 0.00 36.00 4.20 0.81 0.00 38.00 4.20 0.81 0.00 40.00 4.20 0.81 0.00 42.00 4.20 0.81 0.00 44.00 4.20 0.81 0.00 46.00 4.20 0.81 0.00 48.00 4.20 0.81 0.00 50.00 4.20 0.81 0.00 52.00 4.20 0.81 0.00 54.00 4.20 0.81 0.00 56.00 4.20 0.81 0.00 58.00 4.20 0.81 0.00 60.00 4.20 0.81 0.00 62.00 4.20 0.81 0.00 64.00 4.20 0.81 0.00 66.00 4.20 0.81 0.00 68.00 4.20 0.81 0.00 70.00 4.20 0.81 0.00 72.00 4.20 0.81 0.00 74.00 4.20 0.81 0.00 76.00 4.20 0.81 0.00 78.00 4.20 0.81 0.00 80.00 4.20 0.81 0.00 82.00 4.20 0.81 0.00 84.00 4.20 0.81 0.00 86.00 4.20 0.81 0.00 88.00 4.20 0.81 0.00 90.00 4.20 0.81 0.00 92.00 4.20 0.81 0.00 94.00 4.20 0.81 0.00 96.00 4.20 0.81 0.00 98.00 4.20 0.81 0.00 100.00 4.20 0.81 0.00 Time (hours) Precip. (inches) Excess (inches) Runoff (cfs) 102.00 4.20 0.81 0.00 104.00 4.20 0.81 0.00 106.00 4.20 0.81 0.00 108.00 4.20 0.81 0.00 110.00 4.20 0.81 0.00 112.00 4.20 0.81 0.00 114.00 4.20 0.81 0.00 116.00 4.20 0.81 0.00 118.00 4.20 0.81 0.00 120.00 4.20 0.81 0.00 ORIGINAL 2006 MOTORPLEX DESIGN Atlas 14 24-hr S0 100-yr Rainfall=7.30"04.LaMettry - 061815 Printed 6/18/2015Prepared by Sathre-Bergquist, Inc. Page 30HydroCAD® 10.00-13 s/n 03665 © 2014 HydroCAD Software Solutions LLC Summary for Pond 14P: POND Inflow Area = 20.540 ac, 59.35% Impervious, Inflow Depth = 5.21" for 100-yr event Inflow = 114.17 cfs @ 12.14 hrs, Volume= 8.923 af Outflow = 40.18 cfs @ 12.53 hrs, Volume= 8.886 af, Atten= 65%, Lag= 23.1 min Primary = 26.71 cfs @ 12.53 hrs, Volume= 8.238 af Secondary = 13.47 cfs @ 12.53 hrs, Volume= 0.648 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-120.00 hrs, dt= 0.01 hrs / 2 Starting Elev= 906.00' Surf.Area= 51,912 sf Storage= 256,706 cf Peak Elev= 909.01' @ 12.53 hrs Surf.Area= 66,330 sf Storage= 434,466 cf (177,759 cf above start) Plug-Flow detention time= 763.7 min calculated for 2.993 af (34% of inflow) Center-of-Mass det. time= 239.8 min ( 1,015.3 - 775.6 ) Volume Invert Avail.Storage Storage Description #1 897.00' 499,920 cf 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 31,269 401,066 118,094 909.00 66,330 1,235.0 32,524 433,590 122,232 910.00 66,330 1,235.0 66,330 499,920 123,467 Device Routing Invert Outlet Devices #1 Secondary 910.50'120.0" W x 6.0" H Box RIP RAP OVERFLOW L= 25.0' Ke= 1.000 Inlet / Outlet Invert= 910.50' / 905.30' S= 0.2080 '/' Cc= 0.900 n= 0.035, Flow Area= 5.00 sf #2 Primary 905.20'27.0" Round OUTLET PIPE L= 30.0' RCP, mitered to conform to fill, Ke= 0.700 Inlet / Outlet Invert= 905.20' / 904.50' S= 0.0233 '/' Cc= 0.900 n= 0.013 Concrete pipe, straight & clean, Flow Area= 3.98 sf #3 Device 2 906.00'5' SLOTTED WIER, Cv= 2.62 (C= 3.28) 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 3 902.00'27.0" Round INLET PIPE L= 32.0' CMP, projecting, no headwall, Ke= 0.900 Inlet / Outlet Invert= 901.00' / 902.00' S= -0.0313 '/' Cc= 0.900 n= 0.030 Corrugated metal, Flow Area= 3.98 sf #5 Device 2 908.50'5.0" Horiz. Top Grate C= 0.600 Limited to weir flow at low heads #6 Secondary 908.50'Overland Overflow, Cv= 2.62 (C= 3.28) Head (feet) 0.00 0.50 0.50 1.00 Width (feet) 10.00 12.00 100.00 100.00 ORIGINAL 2006 MOTORPLEX DESIGN Atlas 14 24-hr S0 100-yr Rainfall=7.30"04.LaMettry - 061815 Printed 6/18/2015Prepared by Sathre-Bergquist, Inc. Page 31HydroCAD® 10.00-13 s/n 03665 © 2014 HydroCAD Software Solutions LLC Primary OutFlow Max=26.71 cfs @ 12.53 hrs HW=909.01' TW=0.00' (Dynamic Tailwater) 2=OUTLET PIPE (Passes 26.71 cfs of 27.70 cfs potential flow) 3=5' SLOTTED WIER (Passes 26.24 cfs of 45.18 cfs potential flow) 4=INLET PIPE (Inlet Controls 26.24 cfs @ 6.60 fps) 5=Top Grate (Orifice Controls 0.47 cfs @ 3.45 fps) Secondary OutFlow Max=13.46 cfs @ 12.53 hrs HW=909.01' TW=0.00' (Dynamic Tailwater) 1=RIP RAP OVERFLOW ( Controls 0.00 cfs) 6=Overland Overflow (Weir Controls 13.46 cfs @ 1.98 fps) Pond 14P: POND Inflow Outflow Primary Secondary Hydrograph Time (hours) 12011511010510095908580757065605550454035302520151050 Fl o w ( c f s ) 120 110 100 90 80 70 60 50 40 30 20 10 0 Inflow Area=20.540 ac Peak Elev=909.01' Storage=434,466 cf 114.17 cfs 40.18 cfs 26.71 cfs 13.47 cfs ORIGINAL 2006 MOTORPLEX DESIGN Atlas 14 24-hr S0 100-yr Rainfall=7.30"04.LaMettry - 061815 Printed 6/18/2015Prepared by Sathre-Bergquist, Inc. Page 32HydroCAD® 10.00-13 s/n 03665 © 2014 HydroCAD Software Solutions LLC Hydrograph for Pond 14P: POND Time (hours) Inflow (cfs) Storage (cubic-feet) Elevation (feet) Outflow (cfs) Primary (cfs) Secondary (cfs) 0.00 0.00 256,707 906.00 0.00 0.00 0.00 5.00 0.05 257,369 906.01 0.00 0.00 0.00 10.00 1.88 262,563 906.11 0.05 0.05 0.00 15.00 5.48 344,797 907.59 10.18 10.18 0.00 20.00 0.71 308,827 906.96 1.66 1.66 0.00 25.00 0.00 294,306 906.70 0.96 0.96 0.00 30.00 0.00 281,814 906.47 0.50 0.50 0.00 35.00 0.00 274,873 906.34 0.30 0.30 0.00 40.00 0.00 270,547 906.26 0.19 0.19 0.00 45.00 0.00 267,643 906.21 0.13 0.13 0.00 50.00 0.00 265,586 906.17 0.10 0.10 0.00 55.00 0.00 264,071 906.14 0.07 0.07 0.00 60.00 0.00 262,920 906.12 0.06 0.06 0.00 65.00 0.00 262,023 906.10 0.04 0.04 0.00 70.00 0.00 261,310 906.09 0.04 0.04 0.00 75.00 0.00 260,734 906.08 0.03 0.03 0.00 80.00 0.00 260,260 906.07 0.02 0.02 0.00 85.00 0.00 259,866 906.06 0.02 0.02 0.00 90.00 0.00 259,534 906.05 0.02 0.02 0.00 95.00 0.00 259,253 906.05 0.01 0.01 0.00 100.00 0.00 259,012 906.04 0.01 0.01 0.00 105.00 0.00 258,803 906.04 0.01 0.01 0.00 110.00 0.00 258,622 906.04 0.01 0.01 0.00 115.00 0.00 258,464 906.03 0.01 0.01 0.00 120.00 0.00 258,324 906.03 0.01 0.01 0.00 ORIGINAL 2006 MOTORPLEX DESIGN Atlas 14 24-hr S0 100-yr Rainfall=7.30"04.LaMettry - 061815 Printed 6/18/2015Prepared by Sathre-Bergquist, Inc. Page 33HydroCAD® 10.00-13 s/n 03665 © 2014 HydroCAD Software Solutions LLC Summary for Subcatchment P: POND SURFACE AREA Runoff = 12.98 cfs @ 11.99 hrs, Volume= 0.724 af, Depth= 7.30" Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-120.00 hrs, dt= 0.01 hrs Atlas 14 24-hr S0 100-yr Rainfall=7.30" Area (ac) CN Description * 1.190 100 1.190 100.00% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 0.3 255 12.70 Lake or Reservoir, POND Mean Depth= 5.01' Subcatchment P: POND SURFACE AREA Runoff Hydrograph Time (hours) 12011511010510095908580757065605550454035302520151050 Fl o w ( c f s ) 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 Atlas 14 24-hr S0 100-yr Rainfall=7.30" Runoff Area=1.190 ac Runoff Volume=0.724 af Runoff Depth=7.30" Flow Length=255' Tc=0.3 min CN=100 12.98 cfs ORIGINAL 2006 MOTORPLEX DESIGN Atlas 14 24-hr S0 100-yr Rainfall=7.30"04.LaMettry - 061815 Printed 6/18/2015Prepared by Sathre-Bergquist, Inc. Page 34HydroCAD® 10.00-13 s/n 03665 © 2014 HydroCAD Software Solutions LLC Hydrograph for Subcatchment P: POND SURFACE AREA Time (hours) Precip. (inches) Excess (inches) Runoff (cfs) 0.00 0.00 0.00 0.00 2.00 0.05 0.05 0.03 4.00 0.12 0.12 0.04 6.00 0.20 0.20 0.06 8.00 0.39 0.39 0.14 10.00 0.84 0.84 0.44 12.00 4.03 4.03 12.23 14.00 6.47 6.47 0.44 16.00 6.91 6.91 0.14 18.00 7.10 7.10 0.09 20.00 7.18 7.18 0.04 22.00 7.25 7.25 0.04 24.00 7.30 7.30 0.03 26.00 7.30 7.30 0.00 28.00 7.30 7.30 0.00 30.00 7.30 7.30 0.00 32.00 7.30 7.30 0.00 34.00 7.30 7.30 0.00 36.00 7.30 7.30 0.00 38.00 7.30 7.30 0.00 40.00 7.30 7.30 0.00 42.00 7.30 7.30 0.00 44.00 7.30 7.30 0.00 46.00 7.30 7.30 0.00 48.00 7.30 7.30 0.00 50.00 7.30 7.30 0.00 52.00 7.30 7.30 0.00 54.00 7.30 7.30 0.00 56.00 7.30 7.30 0.00 58.00 7.30 7.30 0.00 60.00 7.30 7.30 0.00 62.00 7.30 7.30 0.00 64.00 7.30 7.30 0.00 66.00 7.30 7.30 0.00 68.00 7.30 7.30 0.00 70.00 7.30 7.30 0.00 72.00 7.30 7.30 0.00 74.00 7.30 7.30 0.00 76.00 7.30 7.30 0.00 78.00 7.30 7.30 0.00 80.00 7.30 7.30 0.00 82.00 7.30 7.30 0.00 84.00 7.30 7.30 0.00 86.00 7.30 7.30 0.00 88.00 7.30 7.30 0.00 90.00 7.30 7.30 0.00 92.00 7.30 7.30 0.00 94.00 7.30 7.30 0.00 96.00 7.30 7.30 0.00 98.00 7.30 7.30 0.00 100.00 7.30 7.30 0.00 Time (hours) Precip. (inches) Excess (inches) Runoff (cfs) 102.00 7.30 7.30 0.00 104.00 7.30 7.30 0.00 106.00 7.30 7.30 0.00 108.00 7.30 7.30 0.00 110.00 7.30 7.30 0.00 112.00 7.30 7.30 0.00 114.00 7.30 7.30 0.00 116.00 7.30 7.30 0.00 118.00 7.30 7.30 0.00 120.00 7.30 7.30 0.00 ORIGINAL 2006 MOTORPLEX DESIGN Atlas 14 24-hr S0 100-yr Rainfall=7.30"04.LaMettry - 061815 Printed 6/18/2015Prepared by Sathre-Bergquist, Inc. Page 35HydroCAD® 10.00-13 s/n 03665 © 2014 HydroCAD Software Solutions LLC Summary for Subcatchment P1: POND INFLOW Runoff = 110.50 cfs @ 12.14 hrs, Volume= 8.199 af, Depth= 5.08" Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-120.00 hrs, dt= 0.01 hrs Atlas 14 24-hr S0 100-yr Rainfall=7.30" Area (ac) CN Description * 11.000 98 3.830 61 >75% Grass cover, Good, HSG B (UNGRADED) 4.520 58 Meadow, non-grazed, HSG B (UNGRADED) 19.350 81 Weighted Average 8.350 43.15% Pervious Area 11.000 56.85% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 11.5 123 0.0610 0.18 Sheet Flow, GRASS Grass: Dense n= 0.240 P2= 2.80" 0.8 61 0.0260 1.29 Sheet Flow, CURB Smooth surfaces n= 0.011 P2= 2.80" 1.3 875 0.0375 11.51 20.34 Pipe Channel, RCP 18.0" Round Area= 1.8 sf Perim= 4.7' r= 0.38' n= 0.013 Concrete pipe, straight & clean 13.6 1,059 Total Subcatchment P1: POND INFLOW Runoff Hydrograph Time (hours) 12011511010510095908580757065605550454035302520151050 Fl o w ( c f s ) 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 Atlas 14 24-hr S0 100-yr Rainfall=7.30" Runoff Area=19.350 ac Runoff Volume=8.199 af Runoff Depth=5.08" Flow Length=1,059' Tc=13.6 min CN=81 110.50 cfs ORIGINAL 2006 MOTORPLEX DESIGN Atlas 14 24-hr S0 100-yr Rainfall=7.30"04.LaMettry - 061815 Printed 6/18/2015Prepared by Sathre-Bergquist, Inc. Page 36HydroCAD® 10.00-13 s/n 03665 © 2014 HydroCAD Software Solutions LLC Hydrograph for Subcatchment P1: POND INFLOW Time (hours) Precip. (inches) Excess (inches) Runoff (cfs) 0.00 0.00 0.00 0.00 2.00 0.05 0.00 0.00 4.00 0.12 0.00 0.00 6.00 0.20 0.00 0.00 8.00 0.39 0.00 0.00 10.00 0.84 0.05 1.44 12.00 4.03 2.14 53.56 14.00 6.47 4.31 7.17 16.00 6.91 4.72 2.19 18.00 7.10 4.90 1.53 20.00 7.18 4.97 0.67 22.00 7.25 5.03 0.54 24.00 7.30 5.08 0.46 26.00 7.30 5.08 0.00 28.00 7.30 5.08 0.00 30.00 7.30 5.08 0.00 32.00 7.30 5.08 0.00 34.00 7.30 5.08 0.00 36.00 7.30 5.08 0.00 38.00 7.30 5.08 0.00 40.00 7.30 5.08 0.00 42.00 7.30 5.08 0.00 44.00 7.30 5.08 0.00 46.00 7.30 5.08 0.00 48.00 7.30 5.08 0.00 50.00 7.30 5.08 0.00 52.00 7.30 5.08 0.00 54.00 7.30 5.08 0.00 56.00 7.30 5.08 0.00 58.00 7.30 5.08 0.00 60.00 7.30 5.08 0.00 62.00 7.30 5.08 0.00 64.00 7.30 5.08 0.00 66.00 7.30 5.08 0.00 68.00 7.30 5.08 0.00 70.00 7.30 5.08 0.00 72.00 7.30 5.08 0.00 74.00 7.30 5.08 0.00 76.00 7.30 5.08 0.00 78.00 7.30 5.08 0.00 80.00 7.30 5.08 0.00 82.00 7.30 5.08 0.00 84.00 7.30 5.08 0.00 86.00 7.30 5.08 0.00 88.00 7.30 5.08 0.00 90.00 7.30 5.08 0.00 92.00 7.30 5.08 0.00 94.00 7.30 5.08 0.00 96.00 7.30 5.08 0.00 98.00 7.30 5.08 0.00 100.00 7.30 5.08 0.00 Time (hours) Precip. (inches) Excess (inches) Runoff (cfs) 102.00 7.30 5.08 0.00 104.00 7.30 5.08 0.00 106.00 7.30 5.08 0.00 108.00 7.30 5.08 0.00 110.00 7.30 5.08 0.00 112.00 7.30 5.08 0.00 114.00 7.30 5.08 0.00 116.00 7.30 5.08 0.00 118.00 7.30 5.08 0.00 120.00 7.30 5.08 0.00 ORIGINAL 2006 MOTORPLEX DESIGN Atlas 14 24-hr S0 100-yr Rainfall=7.30"04.LaMettry - 061815 Printed 6/18/2015Prepared by Sathre-Bergquist, Inc. Page 37HydroCAD® 10.00-13 s/n 03665 © 2014 HydroCAD Software Solutions LLC Summary for Link WET: WETLAND Inflow Area = 29.940 ac, 40.71% Impervious, Inflow Depth > 4.39" for 100-yr event Inflow = 57.08 cfs @ 12.42 hrs, Volume= 10.965 af Primary = 57.08 cfs @ 12.42 hrs, Volume= 10.965 af, Atten= 0%, Lag= 0.0 min Primary outflow = Inflow, Time Span= 0.00-120.00 hrs, dt= 0.01 hrs Link WET: WETLAND Inflow Primary Hydrograph Time (hours) 12011511010510095908580757065605550454035302520151050 Fl o w ( c f s ) 60 55 50 45 40 35 30 25 20 15 10 5 0 Inflow Area=29.940 ac 57.08 cfs 57.08 cfs ORIGINAL 2006 MOTORPLEX DESIGN Atlas 14 24-hr S0 100-yr Rainfall=7.30"04.LaMettry - 061815 Printed 6/18/2015Prepared by Sathre-Bergquist, Inc. Page 38HydroCAD® 10.00-13 s/n 03665 © 2014 HydroCAD Software Solutions LLC Hydrograph for Link WET: WETLAND Time (hours) Inflow (cfs) Elevation (feet) Primary (cfs) 0.00 0.00 0.00 0.00 2.00 0.00 0.00 0.00 4.00 0.00 0.00 0.00 6.00 0.00 0.00 0.00 8.00 0.01 0.00 0.01 10.00 0.05 0.00 0.05 12.00 13.35 0.00 13.35 14.00 24.67 0.00 24.67 16.00 6.17 0.00 6.17 18.00 3.15 0.00 3.15 20.00 1.90 0.00 1.90 22.00 1.54 0.00 1.54 24.00 1.28 0.00 1.28 26.00 0.83 0.00 0.83 28.00 0.63 0.00 0.63 30.00 0.50 0.00 0.50 32.00 0.40 0.00 0.40 34.00 0.33 0.00 0.33 36.00 0.27 0.00 0.27 38.00 0.23 0.00 0.23 40.00 0.19 0.00 0.19 42.00 0.17 0.00 0.17 44.00 0.14 0.00 0.14 46.00 0.13 0.00 0.13 48.00 0.11 0.00 0.11 50.00 0.10 0.00 0.10 52.00 0.09 0.00 0.09 54.00 0.08 0.00 0.08 56.00 0.07 0.00 0.07 58.00 0.06 0.00 0.06 60.00 0.06 0.00 0.06 62.00 0.05 0.00 0.05 64.00 0.05 0.00 0.05 66.00 0.04 0.00 0.04 68.00 0.04 0.00 0.04 70.00 0.04 0.00 0.04 72.00 0.03 0.00 0.03 74.00 0.03 0.00 0.03 76.00 0.03 0.00 0.03 78.00 0.03 0.00 0.03 80.00 0.02 0.00 0.02 82.00 0.02 0.00 0.02 84.00 0.02 0.00 0.02 86.00 0.02 0.00 0.02 88.00 0.02 0.00 0.02 90.00 0.02 0.00 0.02 92.00 0.02 0.00 0.02 94.00 0.01 0.00 0.01 96.00 0.01 0.00 0.01 98.00 0.01 0.00 0.01 100.00 0.01 0.00 0.01 Time (hours) Inflow (cfs) Elevation (feet) Primary (cfs) 102.00 0.01 0.00 0.01 104.00 0.01 0.00 0.01 106.00 0.01 0.00 0.01 108.00 0.01 0.00 0.01 110.00 0.01 0.00 0.01 112.00 0.01 0.00 0.01 114.00 0.01 0.00 0.01 116.00 0.01 0.00 0.01 118.00 0.01 0.00 0.01 120.00 0.01 0.00 0.01 ORIGINAL 2006 MOTORPLEX DESIGN Atlas 14 24-hr S0 100-yr Rainfall=7.30"04.LaMettry - 061815 Printed 6/18/2015Prepared by Sathre-Bergquist, Inc. Page 39HydroCAD® 10.00-13 s/n 03665 © 2014 HydroCAD Software Solutions LLC Summary for Subcatchment WET-(1): WETLAND INFLOW(1) Runoff = 12.37 cfs @ 12.33 hrs, Volume= 1.253 af, Depth= 2.62" Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-120.00 hrs, dt= 0.01 hrs Atlas 14 24-hr S0 100-yr Rainfall=7.30" Area (ac) CN Description 5.750 58 Meadow, non-grazed, HSG B 5.750 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 21.1 300 0.0800 0.24 Sheet Flow, GRASS Grass: Dense n= 0.240 P2= 2.80" 3.4 569 0.0343 2.78 Shallow Concentrated Flow, Grassed Waterway Kv= 15.0 fps 24.5 869 Total Subcatchment WET-(1): WETLAND INFLOW(1) Runoff Hydrograph Time (hours) 12011511010510095908580757065605550454035302520151050 Fl o w ( c f s ) 13 12 11 10 9 8 7 6 5 4 3 2 1 0 Atlas 14 24-hr S0 100-yr Rainfall=7.30" Runoff Area=5.750 ac Runoff Volume=1.253 af Runoff Depth=2.62" Flow Length=869' Tc=24.5 min CN=58 12.37 cfs ORIGINAL 2006 MOTORPLEX DESIGN Atlas 14 24-hr S0 100-yr Rainfall=7.30"04.LaMettry - 061815 Printed 6/18/2015Prepared by Sathre-Bergquist, Inc. Page 40HydroCAD® 10.00-13 s/n 03665 © 2014 HydroCAD Software Solutions LLC Hydrograph for Subcatchment WET-(1): WETLAND INFLOW(1) Time (hours) Precip. (inches) Excess (inches) Runoff (cfs) 0.00 0.00 0.00 0.00 2.00 0.05 0.00 0.00 4.00 0.12 0.00 0.00 6.00 0.20 0.00 0.00 8.00 0.39 0.00 0.00 10.00 0.84 0.00 0.00 12.00 4.03 0.68 2.78 14.00 6.47 2.05 1.74 16.00 6.91 2.35 0.49 18.00 7.10 2.48 0.34 20.00 7.18 2.53 0.15 22.00 7.25 2.58 0.12 24.00 7.30 2.62 0.10 26.00 7.30 2.62 0.00 28.00 7.30 2.62 0.00 30.00 7.30 2.62 0.00 32.00 7.30 2.62 0.00 34.00 7.30 2.62 0.00 36.00 7.30 2.62 0.00 38.00 7.30 2.62 0.00 40.00 7.30 2.62 0.00 42.00 7.30 2.62 0.00 44.00 7.30 2.62 0.00 46.00 7.30 2.62 0.00 48.00 7.30 2.62 0.00 50.00 7.30 2.62 0.00 52.00 7.30 2.62 0.00 54.00 7.30 2.62 0.00 56.00 7.30 2.62 0.00 58.00 7.30 2.62 0.00 60.00 7.30 2.62 0.00 62.00 7.30 2.62 0.00 64.00 7.30 2.62 0.00 66.00 7.30 2.62 0.00 68.00 7.30 2.62 0.00 70.00 7.30 2.62 0.00 72.00 7.30 2.62 0.00 74.00 7.30 2.62 0.00 76.00 7.30 2.62 0.00 78.00 7.30 2.62 0.00 80.00 7.30 2.62 0.00 82.00 7.30 2.62 0.00 84.00 7.30 2.62 0.00 86.00 7.30 2.62 0.00 88.00 7.30 2.62 0.00 90.00 7.30 2.62 0.00 92.00 7.30 2.62 0.00 94.00 7.30 2.62 0.00 96.00 7.30 2.62 0.00 98.00 7.30 2.62 0.00 100.00 7.30 2.62 0.00 Time (hours) Precip. (inches) Excess (inches) Runoff (cfs) 102.00 7.30 2.62 0.00 104.00 7.30 2.62 0.00 106.00 7.30 2.62 0.00 108.00 7.30 2.62 0.00 110.00 7.30 2.62 0.00 112.00 7.30 2.62 0.00 114.00 7.30 2.62 0.00 116.00 7.30 2.62 0.00 118.00 7.30 2.62 0.00 120.00 7.30 2.62 0.00 ORIGINAL 2006 MOTORPLEX DESIGN Atlas 14 24-hr S0 100-yr Rainfall=7.30"04.LaMettry - 061815 Printed 6/18/2015Prepared by Sathre-Bergquist, Inc. Page 41HydroCAD® 10.00-13 s/n 03665 © 2014 HydroCAD Software Solutions LLC Summary for Subcatchment WET-(2): WETLAND INFLOW(2) Runoff = 8.29 cfs @ 12.31 hrs, Volume= 0.826 af, Depth= 2.72" Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-120.00 hrs, dt= 0.01 hrs Atlas 14 24-hr S0 100-yr Rainfall=7.30" Area (ac) CN Description 3.010 58 Meadow, non-grazed, HSG B 0.640 61 >75% Grass cover, Good, HSG B 3.650 59 Weighted Average 3.650 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 23.7 300 0.0600 0.21 Sheet Flow, GRASS Grass: Dense n= 0.240 P2= 2.80" 0.3 89 0.1350 5.51 Shallow Concentrated Flow, Grassed Waterway Kv= 15.0 fps 24.0 389 Total Subcatchment WET-(2): WETLAND INFLOW(2) Runoff Hydrograph Time (hours) 12011511010510095908580757065605550454035302520151050 Fl o w ( c f s ) 9 8 7 6 5 4 3 2 1 0 Atlas 14 24-hr S0 100-yr Rainfall=7.30" Runoff Area=3.650 ac Runoff Volume=0.826 af Runoff Depth=2.72" Flow Length=389' Tc=24.0 min CN=59 8.29 cfs ORIGINAL 2006 MOTORPLEX DESIGN Atlas 14 24-hr S0 100-yr Rainfall=7.30"04.LaMettry - 061815 Printed 6/18/2015Prepared by Sathre-Bergquist, Inc. Page 42HydroCAD® 10.00-13 s/n 03665 © 2014 HydroCAD Software Solutions LLC Hydrograph for Subcatchment WET-(2): WETLAND INFLOW(2) Time (hours) Precip. (inches) Excess (inches) Runoff (cfs) 0.00 0.00 0.00 0.00 2.00 0.05 0.00 0.00 4.00 0.12 0.00 0.00 6.00 0.20 0.00 0.00 8.00 0.39 0.00 0.00 10.00 0.84 0.00 0.00 12.00 4.03 0.72 1.96 14.00 6.47 2.14 1.12 16.00 6.91 2.44 0.32 18.00 7.10 2.58 0.22 20.00 7.18 2.63 0.10 22.00 7.25 2.68 0.08 24.00 7.30 2.72 0.07 26.00 7.30 2.72 0.00 28.00 7.30 2.72 0.00 30.00 7.30 2.72 0.00 32.00 7.30 2.72 0.00 34.00 7.30 2.72 0.00 36.00 7.30 2.72 0.00 38.00 7.30 2.72 0.00 40.00 7.30 2.72 0.00 42.00 7.30 2.72 0.00 44.00 7.30 2.72 0.00 46.00 7.30 2.72 0.00 48.00 7.30 2.72 0.00 50.00 7.30 2.72 0.00 52.00 7.30 2.72 0.00 54.00 7.30 2.72 0.00 56.00 7.30 2.72 0.00 58.00 7.30 2.72 0.00 60.00 7.30 2.72 0.00 62.00 7.30 2.72 0.00 64.00 7.30 2.72 0.00 66.00 7.30 2.72 0.00 68.00 7.30 2.72 0.00 70.00 7.30 2.72 0.00 72.00 7.30 2.72 0.00 74.00 7.30 2.72 0.00 76.00 7.30 2.72 0.00 78.00 7.30 2.72 0.00 80.00 7.30 2.72 0.00 82.00 7.30 2.72 0.00 84.00 7.30 2.72 0.00 86.00 7.30 2.72 0.00 88.00 7.30 2.72 0.00 90.00 7.30 2.72 0.00 92.00 7.30 2.72 0.00 94.00 7.30 2.72 0.00 96.00 7.30 2.72 0.00 98.00 7.30 2.72 0.00 100.00 7.30 2.72 0.00 Time (hours) Precip. (inches) Excess (inches) Runoff (cfs) 102.00 7.30 2.72 0.00 104.00 7.30 2.72 0.00 106.00 7.30 2.72 0.00 108.00 7.30 2.72 0.00 110.00 7.30 2.72 0.00 112.00 7.30 2.72 0.00 114.00 7.30 2.72 0.00 116.00 7.30 2.72 0.00 118.00 7.30 2.72 0.00 120.00 7.30 2.72 0.00