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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 2 -yr Rainfall= 2.75" <br />Area (sf) CN Description <br />1,385 98 Paved parking, HSG B <br />925 61 >75% Grass cover, Good, HSG B <br />2,310 83 Weighted Average <br />925 40.04% Pervious Area <br />1,385 59.96% Impervious Area <br />Tc Length Slope Velocity Capacity Description <br />(min) (feet) (ft /ft) (ft /sec) (cfs) <br />5.0 <br />0.131 <br />r <br />0.12 -' <br />0.117- <br />0.1 <br />0.09. <br />0.077- <br />0.06 <br />0.05 <br />_ <br />0.04 <br />0.03 <br />_ - - - r <br />0.021 <br />0.01- <br />Summary for Subcatchment 11S: Direct Discharge #2 <br />0.12 cfs @ 11.96 hrs, Volume= <br />r <br />r <br />0.12 els <br />Direct Entry, <br />Subcatchment 11S: Direct Discharge #2 <br />Hydrograph <br />r <br />Type 11 24-hr 2 -yr Rainfall= 2.75" <br />Printed 12/1/2010 <br />Page 24 <br />0.005 af, Depth> 1.14" <br />Type- 114 -h r 2 yr - <br />Rain- fall= 2.75" <br />Runoff Area =2,310 - sf -- <br />Runoff Votumo =0.005 al <br />Runof Deipth1.14" <br />Tic =5,0 min <br />ON -83 <br />r - - - r r - - - r <br />10 11 12 13 14 <br />Time (hours) <br />15 <br />16 <br />17 <br />18 <br />19 <br />20 <br />❑ Runo <br />