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stormwater.mang.2004.pg12 47392-CLUTE - SELF STORAGE Type 1124-hr Rainfall=4.90" Prepared by {enter your company name here} Page 5 H droCAD®6.10 s/n 002373 @ 1986-2002 Applied Microcomputer Systems 2/3/2004 Primary OutFlow Max=1.90 cfs @ 12.00 hrs HW=95.58' (Free Discharge) t-1=INFILTRATION (Controls 1.90 cfs) # Routing Invert Outlet Devices 1 Primary 0.00' INFILTRATION Elev. (feet) 89.60 90.60 91.60 92.60 93.60 94.60 95.60 96.60 97.60 98.60 Disch. (cfs) 0.00 0.09 0.33 0.64 1.02 1.40 1.91 2.59 3.49 4.74 Pond 4P: NORTH DRAINAGE BASIN Inflow Area= 1.065 ac, Inflow Depth = 2.60" Inflow = 5.59 cfs @ 11.92 hrs, Volume= 0.231 of Outflow = 4.23 cfs @ 11.97 hrs, Volume= 0.233 af, Atten= 24%, Lag= 2.9 min Discarded = 4.23 cfs @ 11.97 hrs, Volume= 0.233 of Routing by Stor-Ind method, Time Span= 5.00-20.00 hrs, dt= 0.05 hrs Peak Elev= 96.11' Surf.Area= 3,048 sf Storage= 485 cf Plug-Flow detention time= (not calculated: outflow precedes inflow) Storage and wetted areas determined by Prismatic sections Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feeo 96.00 2,699 0 97.00 5,737 4,218 4,218 98.00 8,498 7,118 11,336 Discarded OutFlow Max=4.20 cfs @ 11.97 hrs HW=96.11' (Free Discharge) t-1=Exfiltration (Controls 4.20 cfs) # Routing Invert Outlet Devices 1 Discarded 0.00' 0.083333 fpm Exfiltration over entire Surface area