Laserfiche WebLink
Benedicting Innsbruck Hydro MN-New Brighton 24-hr S1 2-yr Rainfall=2.84" <br /> Prepared by Sunde Engineering Printed 2/13/2020 <br /> HydroCAD® 10.00-20 s/n 02350 ©2017 HydroCAD Software Solutions LLC Page 22 <br /> Volume Invert Avail.Storage Storage Description <br /> #1 933.00' 60,752 cf Custom Stage Data (Prismatic) Listed below (Recalc) <br /> Elevation Surf.Area Inc.Store Cum.Store <br /> (feet) (sq-ft) (cubic-feet) (cubic-feet) <br /> 933.00 8,992 0 0 <br /> 934.00 10,265 9,629 9,629 <br /> 935.00 11,597 10,931 20,560 <br /> 935.70 12,564 8,456 29,016 <br /> 936.00 12,987 3,833 32,848 <br /> 937.00 14,222 13,605 46,453 <br /> 938.00 14,376 14,299 60,752 <br /> Device Routing Invert Outlet Devices <br /> #1 Primary 935.70' 15.0" Round Culvert <br /> L= 19.0' RCP, sq.cut end projecting, Ke= 0.500 <br /> Inlet/ Outlet Invert= 935.70' /935.50' S= 0.0105 '/' Cc= 0.900 <br /> n= 0.012 Concrete pipe, finished, Flow Area= 1.23 sf <br /> #2 Tertiary 933.00' 0.200 in/hr Exfiltration over Surface area <br /> #3 Primary 933.00' 6.0" Round Culvert <br /> L= 100.0' RCP, sq.cut end projecting, Ke= 0.500 <br /> Inlet/ Outlet Invert= 933.00' /931.20' S= 0.0180 '/' Cc= 0.900 <br /> n= 0.013 Corrugated PE, smooth interior, Flow Area= 0.20 sf <br /> Primary OutFlow Max=0.93 cfs @ 13.07 hrs HW=934.99' (Free Discharge) <br /> AL1=Culvert ( Controls 0.00 cfs) <br /> 3=Culvert (Barrel Controls 0.93 cfs @ 4.74 fps) <br /> Tertiary OutFlow Max=0.05 cfs @ 13.07 hrs HW=934.99' (Free Discharge) <br /> 4-2=Exfiltration (Exfiltration Controls 0.05 cfs) <br /> Summary for Pond 15P: existing <br /> Inflow Area = 42,022 sf, 53.55% Impervious, Inflow Depth = 1.69" for 2-yr event <br /> Inflow = 2.49 cfs @ 12.04 hrs, Volume= 5,909 cf <br /> Outflow = 2.49 cfs @ 12.04 hrs, Volume= 5,909 cf, Atten= 0%, Lag= 0.0 min <br /> Primary = 2.49 cfs @ 12.04 hrs, Volume= 5,909 cf <br /> Routing by Stor-Ind method, Time Span= 0.00-48.00 hrs, dt= 0.05 hrs <br /> Peak Elev= 939.71' @ 12.04 hrs <br /> Device Routing Invert Outlet Devices <br /> #1 Primary 938.90' 18.0" Round Culvert <br /> L= 524.0' RCP, sq.cut end projecting, Ke= 0.500 <br /> Inlet/Outlet Invert= 938.90' /936.30' S= 0.0050 '/' Cc= 0.900 <br /> n= 0.013 Corrugated PE, smooth interior, Flow Area= 1.77 sf <br /> Primary OutFlow Max=2.43 cfs @ 12.04 hrs HW=939.70' (Free Discharge) <br /> L1=Culvert (Barrel Controls 2.43 cfs @ 3.68 fps) <br />