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HomeMy WebLinkAboutApplication Files_85048_pg0221 ' POST DEVELOPMENT- DP1 2007-058 Jones-POST D1 Type 111 24-hr 90-year Rainfall=4.70" Prepared by J.R. Russo &Associates Printed 12/27/2010 ' HydroCAD®8.50 s/n 002386 02007 HydroCAD Software Solutions LLC Page 18 Summary for Pond B4: Basin #4 ' Inflow 15.91 cfs @ 12.65 hrs, Volume= 5.687 of Outflow - 13.08 cfs @ 12.99 hrs, Volume= 5.671 af, Atten= 18%, Lag=20.7 min Primary = 13.08 cfs @ 12.99 hrs, Volume= 5.671 of ' Secondary= 0.00 cfs @ 0.00 hrs, Volume= 0.000 of Routing by Sim-Route method w/Net Flows, Time Span= 0.00-80.00 hrs, dt= 0.01 hrs Peak Elev= 84.11' @ 12.98 hrs Surf.Area= 18,529 sf Storage=30,811 cf Plug-Flow detention time= 78.4 min calculated for 5.671 of(100% of inflow) Center-of-Mass det. time=68.6 min ( 1,079.5- 1,010.9) Volume Invert Avail.Stora a Storage Description #1 82.20' 70,579 cf Custom Stage Data(Prismatic) Listed below (Recalc) ' Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 82.20 13,832 0 0 83.00 15,754 11,834 11,834 84.00 18,250 17,002 28,836 85.00 20,846 19,548 48,384 86.00 23,543 22,195 70,579 Device Routing Invert Outlet Devices #1 Primary 82.20' 30.0" x 63.0' long Culvert RCP, square edge headwall, Ke= 0.500 Outlet Invert= 81.82' S= 0.0060 T Cc=0.900 n= 0.012 #2 Secondary 82.39' 24.0" x 36.0' long Culvert RCP, mitered to conform to fill, Ke= 0.700 Outlet Invert=82.39' S=-0.0053'/' Cc" 0.900 n= 0.012 Primary OutFlow Max=13.09 cfs @ 12.99 hrs HW=84.11' TW=83.49' (Dynamic Tailwater) L1=Culvert (Outlet Controls 13.09 cfs @ 4.51 fps) ' econda OutFlow Max=0. _ - ry 00 cfs @ 0.00 hrs HW 82.20 TW-82.39 (Dynamic Tailwater) 2=Culvert ( Controls 0.00 cfs) Summaryfor Pond B5: Basin asin #5 ' Inflow Area = 13.120 ac, 51.30% Impervious, Inflow Depth = 2.95" for 10-year event Inflow 25.79 cfs @ 12.09 hrs, Volume= 3.229 of Outflow = 7.58 cfs @ 12.85 hrs, Volume= 3.214 af, Atten= 71%, Lag=46.1 min Primary = 7.58 cfs @ 12.85 hrs, Volume= 3.214 of Routing by Sim-Route method w/Net Flows, Time Span= 0.00-80.00 hrs, dt= 0.01 hrs- Peak Elev=83.39' @ 12.86 hrs Surf.Area=36,798 sf Storage=56,929 cf Plug-Flow detention time=211.5 min calculated for 3.214 of(100% of inflow) Center-of-Mass det. time=208.3 min ( 1,006.6-798.3)