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HomeMy WebLinkAboutApplication Files_85048_pg0222 ' POST DEVELOPMENT- DPI 2007-058 Jones-POST DI Type/1/24-hr 90 year Rainfall=4.70" Prepared by J.R. Russo &Associates Printed 12/27/2010 HydroCADS 8.50 s/n 002386 ©2007 HydroCAD Software Solutions LLC Page 19 Volume invert Avail.Storage Storage Description #1 81.50' 102,226 cf Custom Stage Data(Prismatic) Listed below(Recalc) Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) t 81.50 23,545 0 0 82.00 27,015 12,640 12,640 83.00 34,031 30,523 43,163 84.00 41,148 37,590 80,753 84.50 44,744 21,473 102,226 Device Routing Invert Outlet Devices #1 Primary 81.50' 24.0" x 26.0' long Culvert RCP, mitered to conform to fill, Ke= 0.700 Outlet Invert= 81.36' S= 0.0054 T Cc= 0.900 n= 0.012 Primary OutFlow Max=7.58 cfs @ 12.85 hrs HW=83.39' TW=83.05' (Dynamic Tailwater) t-1=Culvert (Inlet Controls 7.58 cfs @ 2.47 fps) Summary for Pond B6: Basin #6 Inflow = 39.61 cfs @ 12.14 hrs, Volume= 11.809 of Outflow 9.98 cfs @ 15.72 hrs, Volume= 11.732 af, Atten= 75%, Lag=215.0 min Primary 9.98 cfs @ 15.72 hrs, Volume= 11.732 of Routing by Sim-Route method w/Net Flows, Time Span= 0.00-80.00 hrs, dt= 0.01 hrs Peak Elev=82.48' @ 15.72 hrs Surf.Area= 75,153 sf Storage= 193,044 cf Plug-Flow detention time= 299.4 min calculated for 11.732 of(99% of inflow) ' Center-of-Mass det. time= 281.3 min ( 1,272.2-990.9) Volume Invert Avail.Storage Storage Description #1 79.00' 424,551 cf Custom Stage Data(Prismatic) Listed below(Recalc) Elevation Surf.Area Inc.Store Cum.Store ' (feet) (sq-ft) (cubic-feet) (cubic-feet) 79.00 41,025 0 0 80.00 48,858 44,942 44,942 ' 81.00 57,138 52,998 97,940 82.00 65,607 61,373 159,312 83.00 85,525 75,566 234,878 84.00 94,756 90,141 325,019 ' 85.00 104,308 99,532 424,551 Device Routing Invert Outlet Devices #1 Primary 79.00' 15.0" x 94.0' long Culvert RCP, square edge headwall, Ke= 0.500 ' Outlet Invert= 76.60' S= 0.0255 T Cc= 0.900 n= 0.012 ' Primary OutFlow Max=9.98 cfs @ 15.72 hrs HW=82.48' TW=78.53' (Dynamic Tailwater) t-1=Culvert (Inlet Controls 9.98 cfs @ 8.13 fps) 1