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Benedicting Innsbruck Hydro MN-New Brighton 24-hr S1 2-yr Rainfall=2.84" Prepared by Sunde Engineering Printed 2/13/2020 HydroCAD® 10.00-20 s/n 02350 ©2017 HydroCAD Software Solutions LLC Page 26 Summary for Pond 24P: Inflow Area = 22,637 sf, 36.30% Impervious, Inflow Depth = 1.41" for 2-yr event Inflow = 1.08 cfs @ 12.05 hrs, Volume= 2,661 cf Outflow = 1.08 cfs @ 12.05 hrs, Volume= 2,661 cf, Atten= 0%, Lag= 0.0 min Primary = 1.08 cfs @ 12.05 hrs, Volume= 2,661 cf Routing by Stor-Ind method, Time Span= 0.00-48.00 hrs, dt= 0.05 hrs Peak Elev= 940.07' @ 12.05 hrs Device Routing Invert Outlet Devices #1 Primary 939.53' 12.0" Round Culvert L= 45.0' RCP, sq.cut end projecting, Ke= 0.500 Inlet/Outlet Invert= 939.53' /938.90' S= 0.0140 '/' Cc= 0.900 n= 0.013 Corrugated PE, smooth interior, Flow Area= 0.79 sf Primary OutFlow Max=1.06 cfs @ 12.05 hrs HW=940.06' (Free Discharge) t 1=Culvert (Inlet Controls 1.06 cfs @ 2.49 fps) Summary for Pond 25P: Inflow Area = 4,394 sf, 3.87% Impervious, Inflow Depth = 0.86" for 2-yr event Inflow = 0.13 cfs @ 12.05 hrs, Volume= 314 cf Outflow = 0.13 cfs @ 12.05 hrs, Volume= 314 cf, Atten= 0%, Lag= 0.0 min Primary = 0.13 cfs @ 12.05 hrs, Volume= 314 cf Routing by Stor-Ind method, Time Span= 0.00-48.00 hrs, dt= 0.05 hrs Peak Elev= 950.66' @ 12.05 hrs Device Routing Invert Outlet Devices #1 Primary 950.46' 12.0" Round Culvert L= 96.0' RCP, sq.cut end projecting, Ke= 0.500 Inlet/ Outlet Invert= 950.46' /949.98' S= 0.0050 '/' Cc= 0.900 n= 0.013 Corrugated PE, smooth interior, Flow Area= 0.79 sf Primary OutFlow Max=0.12 cfs @ 12.05 hrs HW=950.66' (Free Discharge) 4-1=Culvert (Barrel Controls 0.12 cfs @ 1.65 fps) Summary for Pond 26P: Inflow Area = 7,586 sf, 3.56% Impervious, Inflow Depth = 0.86" for 2-yr event Inflow = 0.22 cfs @ 12.05 hrs, Volume= 542 cf Outflow = 0.22 cfs @ 12.05 hrs, Volume= 542 cf, Atten= 0%, Lag= 0.0 min Primary = 0.22 cfs @ 12.05 hrs, Volume= 542 cf Routing by Stor-Ind method, Time Span= 0.00-48.00 hrs, dt= 0.05 hrs Peak Elev= 950.25' @ 12.05 hrs Device Routing Invert Outlet Devices _ #1 Primary 949.98' 12.0" Round Culvert L= 55.0' RCP, sq.cut end projecting, Ke= 0.500