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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 10S: Direct Discharge #1 <br />[49] Hint: Tc <2dt may require smaller dt <br />Runoff = 0.05 cfs @ 11.96 hrs, Volume= 0.002 af, Depth> 0.97" <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 />5.0 <br />0.035 - <br />/ <br />0.03- <br />0 <br />LL 0.025 <br />Area (sf) CN Description <br />587 98 Paved parking, HSG B <br />583 61 >75% Grass cover, Good, HSG B <br />1,170 80 Weighted Average <br />583 49.83% Pervious Area <br />587 50.17% Impervious Area <br />Tc Length Slope Velocity Capacity Description <br />(min) (feet) (ft /ft) (ft /sec) (cfs) <br />0.055 - <br />0.05 - <br />0.045 - <br />0.04- <br />0.02 <br />0.015- <br />0.01- <br />0.005- <br />r <br />5- <br />5- <br />Subcatchment 10S: Direct Discharge #1 <br />Hydrograph <br />0.05 cfs <br />Direct Entry, <br />10 11 12 13 14 15 <br />Time (hours) <br />Type 11 24-hr 2 -yr <br />Rainfall =2.75" <br />Runoff Area =1,170'sf <br />Runoff Volume -0.002 of <br />Runoff Depth >0.97" <br />Tc =5 0 min <br />QN =80 <br />16 <br />Type 11 24-hr 2 -yr Rainfall=2. 75" <br />Printed 12/1/2010 <br />Page 23 <br />17 <br />18 <br />19 <br />20 <br />❑ Runo <br />