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<br />2058.0010 Prop Drain <br />Prepared by {enter your company name here} <br />HydroCAOO 8.00 sin 001304 @ 2006 HydroCAD Software Solutions LLC <br /> <br />Type 1/24-hr100-Year; 24 hour Rainfal/=5.90" <br />Page 15 <br />9/18/2007 <br /> <br />Time span=0.00-72.00 hrs, dt=0.01 hrs, 7201 points <br />Runoff by SCS TR-20 method, UH=SCS <br />Reach routing by Stor-Ind+ Trans method Pond routing by Stor-Ind method <br /> <br />5ubcatchment 15: East area and wetland Runoff Area=74,861 sf Runoff Depth=3.79" <br />Flow Length=485' Slope=0.0082 'I' Tc=6.0 min CN=81 Runoff=11.35 cfs 0.543 af <br /> <br />5ubcatchment 25: Proposed Drainage Area to Pond Runoff Area=59,361 sf Runoff Depth=5.08" <br />Flow Length=450' Tc=5.4 min CN=93 Runoff=11.25 cfs 0.577 at <br /> <br />Reach 3R: Drainage to offsite <br /> <br />Inflow=14.32 cts 1.107 af <br />Outflow=14.32 cts 1.107 af <br /> <br />Pond 4P: Storm pond <br /> <br />Peak Elev=901.92' Storage=32,049 ct Inflow=11.25 cfs 0.577 at <br />Outflow=4.50 cfs 0.577 at <br /> <br />Pond 5P: Biotiltration area <br /> <br />Peak Elev=900.75' Storage=1 ,244 cf Inflow=4.50 cfs 0.577 at <br />Outflow=4.41 cts 0.564 at <br /> <br />Total Runoff Area = 3.081 ac Runoff Volume = 1.121 at Average Runoff Depth = 4.36" <br />57.55% Pervious Area = 1.773 ac 42.45% Impervious Area = 1.308 ac <br />