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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 />Summary for Subcatchment 13S: Direct Discharge #4 <br />[49] Hint: Tc <2dt may require smaller dt <br />Runoff = 0.50 cfs @ 11.96 hrs, Volume= 0.022 af, Depth> 3.14" <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 100 -yr Rainfall = 5.90" <br />5.0 <br />0.55 <br />0.5 <br />0.45 <br />0.4 <br />0.35 <br />• 0.3 <br />0 <br />E 0.25 <br />0.2 <br />0.15 <br />0.1 <br />0.05 <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 />0 <br />5 <br />Direct Entry, <br />Subcatchment 13S: Direct Discharge #4 <br />Hydrograph <br />10 <br />11 <br />12 13 14 15 16 17 18 <br />Time (hours) <br />Type 11 24-hr 100 -yr Rainfall = 5.90" <br />Printed 12/1/2010 <br />Page 54 <br />r <br />0.50efs <br />-1 <br />r - - -- <br />Runoff Area =3,623 sf <br />Runoff Volume -0.022 af <br />Runoff Depth >3.14" <br />Tc =5.0 min <br />L <br />Type 11 24 -hr 100 -yr <br />Rainfall- 5.90" <br />CN =77 <br />19 <br />20 <br />❑ Runo <br />