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UWA10002 - Alley Ponding <br />Prepared by {enter your company name here} <br />HydroCAD® 9.10 s/n 01542 © 2009 HydroCAD Software Solutions LLC <br />Runoff <br />Summary for Subcatchment 2S: RD 405B DA <br />0 <br />0 <br />LL <br />0.64 cfs @ 11.96 hrs, Volume= <br />Runoff by SCS TR -20 method, UH =SCS, Time Span= 5.00 -20.00 hrs, dt= 0.01 hrs <br />Type II 24 -hr 100 -yr Rainfall = 5.90" <br />Area (sf) CN Description <br />3,189 98 Paved parking, HSG C <br />3,189 100.00% Impervious Area <br />Tc Length Slope Velocity Capacity Description <br />(min) (feet) (ft /ft) (ft /sec) (cfs) <br />5.0 <br />0.7— <br />0.65- <br />0.6- <br />0.55 <br />0.1 <br />0.05— <br />6 <br />7 <br />8 <br />L <br />4- <br />1 0.64 cfs <br />r rI r <br />J L J L J <br />0.57 i 1 1 1 <br />0.457" I I I 1 1 1 <br />r r r r r <br />0.4—' I I I I I <br />0.35-' 1 1 1 1 1 <br />L L L <br />I I L J <br />0.3 -..' I I I I 1 <br />▪ ~ +I r <br />0.25 I I I I 1 <br />r r r r r <br />0.2—' I I I I I <br />0.157 <br />LI 1 r I <br />- r r r <br />9 <br />Subcatchment 2S: RD 405B DA <br />$ <br />10 <br />✓ <br />11 <br />Hydrograph <br />L <br />Direct Entry, <br />Type 11 24 100 - yr Rainfall = 5.90" <br />Printed 12/1/2010 <br />Page 8 <br />0.032 af, Depth> 5.18" <br />4- <br />Type - l -24. <br />Ri airyfall- 5L i .90 " -- <br />L L <br />12 13 14 15 16 <br />Time (hours) <br />17 <br />4- <br />1- <br />Runoff Arei= 3 sf <br />!Flunoff!Vol,ume =0.p32! of <br />Runoff Depth <br />Td 5,O Thin <br />N_g8 <br />r r r <br />18 19 <br />20 <br />• Runoff <br />