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HomeMy WebLinkAboutApplication Files_82693_pg0775 72189 PR Type ill 24-hr 100-Year Storm Rainfall=6.90" Prepared by {enter your company name here) Printed 7/26/2011 HydroCAD®9.10 s/n 01237 02009 HydroCAD Software Solutions LLC Page 97 Peak Elev=59.94'@ 12.11 hrs Surf.Area= 1,293 sf Storage= 850 cf , Plug-Flow detention time=12.7 min calculated for 0.689 of(100% of.inflow) Center-of-Mass det. time= 12.7 min (781.9 -769.2 } Volume Invert Avail.Storage Storage Description #1 59.00, 1,701 cf Custom Stage Data(Prismatic)Listed below(Recalc) Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) - 59.00 517 0 0 ' 60,00 1,343 930 930 60.50 1,740 771 1,701 Device Routing Invert Outlet Devices #1 Discarded 59.00' 5.000 in/hr Exfiltration over Surface area #2 Primary 59.50' 2.4"x 2.1" Horiz. Orifice/Grate X 9.00 columns 8 rows C=0.600 Limited to weir flow at low heads Discarded OutFlow Max=0.15 cfs @ 12.11 hrs HW=59.92' (Free Discharge) L1=Exfiltration (Exfiltration Controls 0.15 cfs) Primary OutFlow Max=7.89 cfs @ 12.11 hrs HW=59.92' TW=56.34' (Dynamic Tailwater) t-2=Or"rfice/Grate (Orifice Controls 7.89 cfs @ 3.13 fps) ' Summary for Pond P11: Depression By Railroad Tracks [87] Warning: Oscillations may require Finer Routing or smaller dt Inflow Area= 15.212 ac, 18'.57% Impervious, Inflow Depth = 0.53" for 100-Year Storm event Inflow - 6.81 cfs @ 12.22 hrs, Volume= 0.673 of ' Outflow = 3.63 cfs @ 12.53 hrs, Volume= 0.673 af, Atten=47%, Lag= 18.6 min Discarded = 3.63 cfs @ 12.53 hrs, Volume= 0.673 of Primary - 0.00 cfs @ 0.00 hrs, Volume= 0.000 of Routing by Dyn-Stor-Ind method, Time Span= 0.00-72.00 hrs, dt=0.05 hrs Peak Elev=56.36'@ 12.53 hrs Surf.Aroa= 6,268 sf Storage=4,877 cf ' Plug-Flow detention time=(not calculated:outflow precedes inflow) Center-of-Mass det. time=9.7 min (877.1 -867.4 ) Volume Invert Avail.Storage Storage Description ' #1 55.00' 49,371 cf Custom Stage Data (irregular)Listed below(Recalc) Elevation Surf.Area Perim. Inc.Store Cum.Store Wet.Area i (feet) (sq-ft) (feet) (cubic-feet) (cubic-feet) (sq-ft) 55.00 1,471 427.0 0 0 1,471 ' 56.00 4,628 824.0 2,903 2,903 40,998 57.00 9,733 1,240.0 7,024 9,927 109,333 58.00 20,427 2,012.0 14,753 24,680 309,122 59.00 29,215 2,390.0 24,690 49,371 441,554