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HomeMy WebLinkAboutApplication Files_82693_pg0659 72189 EX Type III 24-hr 25-Year Storm Rainfall=5.50" Prepared by{enter your company name here} Printed 7/26/2011 HydroCAD®9.10 s/n 01237 OO 2009 HydroCAD Software Solutions LLC Page 32 Volume Invert Avail.Storage Storage Description #1 59.00' 79,333 cf Custom Stage Data (Prismatic)Listed below(Recalc) Elevation Surf.Area 1nc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 59.00 13,925 0 0 60.00 23,360 18,643 18,643 61.00 30,724 27,042 45,685 62.00 36,572 33,648 79,333 Device Routing Invert Outlet Devices #1 Primary 62.00' 15.0' Yong x 30.0' 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 #2 Discarded .59.00' 25.000 in/hr Exfiltration over Surface area Discarded OutFlow Max=8.06 cfs @ 12.59 hrs HW=59.00' (Free Discharge) L2=Exfiltration (E.41tration Controls 8.06 cfs) �Primary OutFlow Max=0.00 cfs @ 0.00 hrs HW=59.00' (Free Discharge) ri 1=Broad Crested Rectangular Weir(Controls 0.00 cfs) Summary for Pond P4B: Depression Behind Buildings Inflow Area = 3.645 ac, 7.51% Impervious, Inflow Depth = 0.85" for 25-Year Storm event Inflow _ 2.62 cfs @ 12.23 hrs, Volume= 0.259 of Outflow 1.51 cfs @ 12.51 hrs, Volume= 0.259 af, Atten=43%, Lag= 16.9 min Discarded = 1.51 cfs @ 12.51 hrs, Volume= 0.259 of Primary = 0.00 cfs @ 0.00 hrs, Volume= 0.000 of Routing by Stor-Ind method, Time Span=0.00-72.00 hrs, dt= 0.05 hrs Peak Elev=60.03'@ 12.51.hrs Surf.Area=2,602 sf Storage= .1,666 cf Plug-Flow detention time=7.7 min calculated for 0.259 of(100%of inflow) Center-of-Mass det.time=7.7 min (866.6-859.0 ) Volume Invert Avail.Storage Storage Description #1 59.00' 22,461 cf Custom Stage Data (Prismatic)Listed below(Recalc) Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 59.00 641 0 0 60.00 2,547 1,594 1,594 61.00 4,520 3,534 5,128 62.00 71622 6,071 11,199 63.00 14,902 11,262 22,461 Device Routing Invert Outlet Devices #1 Primary 62.00' 30.0' long x 15.0' breadth Broad-Crested Rectangular Weir Head (feet) 0.20 0.40 0.60 0.80 1.00 1.20 1.40 1.60