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<br />2058.0010 Prop Drain <br />Prepared by {enter your company name here} <br />HYdroCAD@ 8.00 sin 001304 @ 2006 HydroCAD Software Solutions LLC <br /> <br />Type /I 24-hr tOO-Year; 24 hour Rainfal/=5.90" <br />Page 20 <br />9118/2007 <br /> <br />Pond 5P: Biofiltration area <br /> <br />Inflow Area = <br />Inflow = <br />Outflow = <br />Primary = <br /> <br />1.363 ac, Inflow Depth = 5.08" <br />4.50 cfs @ 12.06 hrs, Volume= <br />4.41 cfs @ 12.10 hrs, Volume= <br />4.41 cfs@ 12.10 hrs, Volume= <br /> <br />for 100-Year; 24 hour event <br />0.577 af <br />0.564 af, Atten= 2%, Lag= 2.1 min <br />0.564 af <br /> <br />Routing by Stor-Ind method, Time Span= 0.00-72.00 hrs, dt= 0.01 hrs <br />Peak Elev= 900.75'@ 12.10 hrs Surf.Area= 2,835 sf Storage= 1,244 cf <br /> <br />Plug-Flow detention time= 37.8 min calculated for 0.564 af (98% of inflow) <br />Center-of-Mass del. time= 15.0 min ( 876.9 - 861.9 ) <br /> <br />Volume <br />#1 <br /> <br />Invert <br />900.00' <br /> <br />Avail.Storaqe Storaqe Description <br />2,002 cf Custom Stage Data (Prismatic)-isted below (Recalc) <br /> <br />Elevation <br />(feet) <br />900.00 <br />900.50 <br />901.00 <br /> <br />Surf.Area <br />(sq-ft) <br />o <br />2,348 <br />3,310 <br /> <br />Inc.Store <br />(cubic-feet) <br />o <br />587 <br />1,415 <br /> <br />Cum.Store <br />(cubic-feet) <br />o <br />587 <br />2,002 <br /> <br />Device <br />#1 <br /> <br />Routinq <br />Primary <br /> <br />Invert Outlet Devices <br />900.50' 10.0' long Sharp-Crested Rectangular Weir2 End Contraction(s) <br />0.5' Crest Height <br /> <br />Primary OutFlow Max=4.40 cfs@ 12.10 hrs HW=900.75' (Free Discharge) <br />L1=Sharp-Crested Rectangular Weir(Weir Controls 4.40 cfs @ 1.75 fps) <br />