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UWA10002 - Proposed <br />Prepared by {enter your company name here} <br />HydroCAD® 9.10 s/n 01542 © 2009 HydroCAD Software Solutions LLC <br />[49] Hint: Tc <2dt may require smaller dt <br />Runoff <br />Runoff by SCS TR -20 method, UH =SCS, Time Span= 5.00 -20.00 hrs, dt= 0.05 hrs <br />Type II 24 -hr 10 -yr Rainfall= 4.10" <br />5.0 <br />0.18 <br />0.161 <br />LL 0.14= <br />0.12 <br />0.1. <br />0.081 <br />0.061 <br />0.041 <br />0.021 <br />Summary for Subcatchment 13S: Direct Discharge #4 <br />0.28 cfs @ 11.96 hrs, Volume= <br />Area (sf) CN Description <br />1,521 98 Paved parking, HSG B <br />2,102 61 >75% Grass cover, Good, HSG B <br />3,623 77 Weighted Average <br />2,102 58.02% Pervious Area <br />1,521 41.98% Impervious Area <br />Tc Length Slope Velocity Capacity Description <br />(min) (feet) (ft /ft) (ft /sec) (cfs) <br />r r r <br />0.28 cfs <br />I I I <br />I I <br />0.28 I I I I <br />r — — — — r - - - r - - - - r — — — r — — — <br />0.261 I I <br />L <br />0.241 I I I I <br />022' I I <br />0.21 <br />r <br />-1 1 <br />I I J L <br />I <br />- 1 r <br />- r 1 L <br />I L J I <br />1 <br />Direct Entry, <br />r <br />Type 11 24-hr 10 -yr Rainfall = 4.10" <br />Printed 12/1/2010 <br />Page 40 <br />0.012 af, Depth> 1.73" <br />Subcatchment 13S: Direct Discharge #4 <br />Hydrograph <br />r <br />I I <br />T,yp - ll-2r4 -hr 1OE.yr- - <br />Ra1ref H k4.1 O" <br />Runoff are0 =3,6231 <br />- u non '-Vo FO = 0 . b i2 a #- - <br />R De��pth1.3" <br />• <br />Th =5,0 rriin <br />r t t I r <br />N=77 <br />I I I <br />r r r <br />dO <br />10 11 12 13 14 <br />Time (hours) <br />15 <br />16 <br />17 <br />18 <br />19 <br />20 <br />❑ Runo <br />