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HomeMy WebLinkAboutApplication Files_82693_pg0755 72189 PR Type I// 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 O 2009 HydroCAD Software Solutions LLC Page 78 Discarded Outflow Max=0.00 cfs @ 12.16 hrs HW=56.00' (Free Discharge) t1=Exfiltration (Passes 0.00 cfs of 0.27 cfs potential flow) ' .Primary Outflow Max--0.00 cfs @ 12.16 hrs HW=56.00' TW=0.00' (Dynamic Tailwater) 2=36" Pipe (Passes 0.00 cfs of 20.58 cfs potential flow) ' Summary for Pond PR4E: Sediment Forebay [90]Warning: Qout>Qin may require Finer Routing or smaller dt [87]Warning: Oscillations may require Finer Routing or smaller dt Inflow Area = 0.841 ac, 29.22% Impervious, Inflow Depth = 2.77" for 25-Year Storm event ' Inflow _ 2.68 cfs @ 12.09 hrs, Volume= 0.194 of - Outflow 2.69 cfs @ 12.10 hrs, Volume= 0.194 af, Atten=0%, Lag= 0.5 min Discarded = 0.29 cfs @ 12.12 hrs, Volume= 0.128 of ' Primary = 2.40 cfs @ 12.10 hrs, Volume= 0.066 of Routing by Dyn-Star-Ind method, Time Span=0.00-72.00 hrs, dt= 0.05 hrs Peak Elev= 62.17'@ 12.12 hrs Surf.Area= 502 sf Storage=411 cf ' Plug-Flow detention time=(not calculated: outflow precedes inflow) Center-of-Mass det. time=6.8 min (839.6-832.8) Volume Invert Avail.Storage Storage Description #1 61.00' 592 cf Custom Stage Data(Prismatic)Listed below(Recalc) ' Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet 61.00 205 0 0 ' 62.00 454 330 330 62.50 594 262 592 ' Device Routing Invert Outlet Devices #1 Discarded 61.00' 25.000 iin/hr Exfiltration over Surface area #2 Primary 61.75' 8.0' long x S.0' breadth Broad-Crested Rectangular Weir ' Head (feet) 0.20 0.40 0.60 0.80 1.00 1.20 1.40 1.60 1.80 2.00 2.50 3.00 3.50 4.00 4.50 5.00 5.50 Coef. (English) 2.34 2.50 2.70 2.68 2.68 2.66 2.65 2.65 2.65 ' 2.65 2.67 2.66 2.68 2.70 2.74 2.79 2.88 Discarded Outflow Max=0.29 cfs @ 12.12 hrs HW=62.16' (Free Discharge) t-1=Exfiltration (Exfiltration Controls 0.29 cfs) Primary Outflow Max=1.91 cfs @ 12.10 hrs HW=62.16' TW=62.15' (Dynamic Tailwater) t-2=Broad-Crested Rectangular Weir(Weir Controls 1.91 cfs @ 0.58 fps)