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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 />U <br />5.0 <br />157' <br />141 <br />131 <br />121 <br />117' <br />101 <br />81 <br />0 <br />5 <br />6 <br />1 <br />1 <br />7 <br />1 <br />1 <br />T <br />1 <br />T <br />1 <br />7 <br />4- <br />Summary for Subcatchment 3S: Drainage Area #3 <br />13.97 cfs @ 11.95 hrs, Volume= <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 />Area (sf) CN Description <br />64,715 98 Paved parking, HSG B <br />9,671 61 >75% Grass cover, Good, HSG B <br />74,386 93 Weighted Average <br />9,671 13.00% Pervious Area <br />64,715 87.00% Impervious Area <br />Tc Length Slope Velocity Capacity Description <br />(min) (feet) (ft /ft) (ft /sec) (cfs) <br />8 <br />Subcatchment 3S: Drainage Area #3 <br />Hydrograph <br />A, <br />r <br />i <br />i <br />Direct Entry, <br />1 3 9 7 cfs <br />10 11 12 13 14 <br />Time (hours) <br />t <br />0.677 af, Depth> 4.75" <br />Type 1124 - far- 100yyr - <br />r Rair aft�5.9O' <br />Runoff area =74,386 sf <br />- Runoff'- Vo4' 0- 6 77 ia# - <br />Runoff 14.75" - <br />Tc =5.0 niin <br />ON =;93 - <br />I I 1 <br />T T T r T <br />I I 1 <br />1 L J 1 <br />1 1 1 1 <br />15 <br />16 <br />Type 11 24-hr 100 -yr Rainfall = 5.90" <br />Printed 12/1/2010 <br />Page 49 <br />17 <br />7. <br />18 <br />19 <br />Y <br />20 <br />❑ Runo <br />