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UWA10002 - Proposed Type 1124 -hr 100 -yr Rainfall = 5.90" <br />Prepared by {enter your company name here} Printed 12/1/2010 <br />HydroCAD® 9.10 s/n 01542 © 2009 HydroCAD Software Solutions LLC Page 53 <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 100 -yr Rainfall = 5.90" <br />Tc Length Slope Velocity Capacity Description <br />(min) (feet) (ft /ft) (ft /sec) (cfs) <br />0 <br />0 <br />LL <br />5.0 <br />0.36 <br />0.34 <br />0.32 <br />0.3 <br />0.28 <br />0.26 <br />0.24 <br />0.22 <br />0.2 <br />0.18 <br />0.16 <br />0.14 <br />0.12 <br />0.1 <br />0.08 <br />0.06 <br />0.04 <br />0.02 <br />0 <br />Area (sf) CN Description <br />888 98 Paved parking, HSG B <br />1,763 61 >75% Grass cover, Good, HSG B <br />2,651 73 Weighted Average <br />1,763 66.50% Pervious Area <br />888 33.50% Impervious Area <br />5 <br />0.33 cfs @ 11.96 hrs, Volume= <br />6 <br />7 <br />Summary for Subcatchment 12S: Direct Discharge #3 <br />8 <br />Direct Entry, <br />0.014 af, Depth> 2.77" <br />Subcatchment 12S: Direct Discharge #3 <br />Hydrograph <br />r <br />-1 <br />+ <br />7 <br />r <br />1 <br />1 0.33 cfs <br />Type f l 241 100;yr - <br />Rai nfatl 5.9x0 <br />Runoff Ire i= 2,'651 _sf Runoff al <br />Runoff Depfh >227 " -- <br />7 tic -5,o ni n <br />9 <br />10 <br />11 <br />12 13 14 <br />Time (hours) <br />15 <br />16 <br />17 <br />18 <br />19 <br />20 <br />❑ Runo <br />