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HomeMy WebLinkAboutApplication Files_82693_pg0744 72189 PR Type 11/24-hr 25-Year Storm Rainfall=5.50" Prepared by{enter your company name here} Printed 7/26/2011 HydroCADO 9.10 s/n 01237 ©2009 HydroCAD Software Solutions LLC Page 67 Summary for Pond P1 B: Existing Infiltration Area [871 Warning: Oscillations may require Finer Routing or smaller dt Inflow Area = 3.707 ac, 39.65% Impervious, Inflow Depth = 1.18" for 25-Year Storm event Inflow = 4.96 cfs @ 12.10 hrs, Volume= 0.365 of Outflow = 3.79 cfs @ 12.17 hrs, Volume= 0.367 af, Atten=24%, Lag=4.2 min Discarded = 3.79 cfs @ 12.17 hrs, Volume= 0.367 of Primary - 0.00 cfs @ 0.00 hrs, Volume= 0.000 of Routing by Dyn-Star-Ind method, Time Span=0.00-72.00 hrs, dt=0.05 hrs ' Peak Elev=59.05'@ 12.17 hrs Surf.Area= 6,546 sf Storage= 353 cf Plug-Flow detention time=(not calculated: outflow precedes inflow)- Center-of-Mass det.time=0.6 min ( 848.4-847.8 ) Volume Invert Avail.Storage Storage Description #1 59.00' 28,983 cf Custom Stage Data(Irregular)Listed below(Recale) Elevation Surf.Area Perim. Inc.Store Cum.Store Wet.Area (feet) (sq-ft) (feet) (cubic-feet) (cubic-feet) (sq-ft) 59.00 6,472 314.0 0 0 6,472 60.00 7,910 360.0 7,179 7,179 8,962 61.00 11,264 653.0 9,538 16,717 32,587 62.00 13,296 452.0 12,266 28,983 50,270 Device Routing Invert Outlet Devices #1 Discarded 59.00' 25.000 in/hr Exfiltration over Surface area #2 Primary 60.50' 6.0' long x 70.0' breadth Broad-Crested Rectangular Weir Head (feet) 0.20 0.40 0.60 0.80 1.00 1.20 1.40 1.60 Coef. (English) 2.68 2.70 2.70 2.64 2.63 2.64 2.64 2.63 Discarded OutFiow Max=3.79 cfs @ 12.17 hrs HW=59.05' (Free Discharge) 't -1=Exfiltration (Exfiltration Controls 3.79 cfs) Primary OutFlow Max=0.00 cfs @ 0.00 hrs HW=59.00' TW=59.00' (Dynamic Tailwater) 't-2=13road-Crested Rectangular Weir( Controls 0.00 cfs) Summary for Pond PIC: Blofiltration Basin 2 [87]Warning: Oscillations may require Finer Routing or smaller dt Inflow Area = 3.178 ac, 70.73% Impervious, Inflow Depth = 3.33" for 25-Year Storm event Inflow = 12.14 cfs @ 12.09 hrs, Volume= 0.883 a€ Outflow = 10.89 cfs @ 12.13 hrs, Volume= 0.883 af, Atten= 10%, Lag=2.4 min Discarded = 0.74 cfs @ 12.13 hrs, Volume= 0.550 of Primary - 10.14 cfs @ 12.13 hrs, Volume= 0.333 of Routing by Dyn-Stor-Ind method, Time Span= 0.00-72.00 hrs, dt= 0.05 hrs