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COVENANT MEADOWS A Type 11 24-hr 100 YEAR Rainfall=7.06" <br />Prepared by ROSHELL ENGINEERING Printed 5/3/2017 <br />HydroCAD® 10.00-15 s/n 01744 © 2015 HydroCAD Software Solutions LLC Page 31 <br />Summary for Subcatchment SE: SE AREA <br />Runoff = 8.14 cfs @ 12.05 hrs, Volume= <br />0.496 af, Depth= 2.35" <br />Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 5.00-120.00 hrs, dt= 0.01 hrs <br />Type II 24-hr 100 YEAR Rainfall=7.06" <br />Area (ac) CN Description <br />2.530 57 1/3 acre lots, 30% imp, HSG A <br />1.771 70.00% Pervious Area <br />0.759 30.00% Impervious Area <br />Tc Length Slope Velocity Capacity Description <br />(min) (feet) (ft/ft) (ft/sec) (cfs) <br />12.6 200 0.0500 0.26 Sheet Flow, Sheet Flow <br />Grass: Short n= 0.150 P2= 2.80" <br />" <br />0 <br />LL <br />Subcatchment SE: SE AREA <br />Hydrograph <br />Type II 24-hr <br />100 YEAR Ra-jnfal1=706" <br />Runoff Area=2.530 ac <br />Ru <br />noff Volume=0,496 af <br />Runoff Depth=2;35" <br />Flow Length=200' <br />Slope=0.0500 '/' <br />Tc=12.6 <br />CN <br />min <br />=57 <br />5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100 105 110 115 120 <br />Time (hours) <br />■ Runoff <br />You created this PDF from an application that is not licensed to print to novaPDF printer (http://www.novapdf.com) <br />