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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 51 <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 />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 />5.0 <br />i r r r r r r <br />0.19 <br />0.18 - - - -� r ;o. <br />0.17 ' r r <br />0.16 1 1 1 1 1 1 <br />-II - - - - r - - - r - - - - 1 - - - r - - - - r <br />0.15= 1 1 <br />0.14 I 1 • 1 • 1 1 <br />1 r 1 ▪ 1 • r <br />0.13 = r 1 r r 1 7 <br />0.12 - -- <br />r r r <br />• 0.11� 1 1 1 1 <br />.13 0.1 � • I • I • I ▪ I <br />O 0.09=-' 1 1 1 1 1 <br />L.T. r - - - - r - - - r - - - - r - - - r - - - - r <br />0,081 - -- 1 1 1 1 1 1 <br />0.07 � 1 1 1 1 7 1 <br />0.06 -- 1 1 • 1 • 1 • 1 ▪ 1 <br />r r r r r r <br />0.05 =' _ <br />1 <br />0.04 1 1 1 1 1 <br />• 1 r 1 <br />0.03. <br />= • 1 1 1 r r <br />0.02 <br />0 01L / <br />0 <br />5 <br />Summary for Subcatchment 10S: Direct Discharge #1 <br />0.17 cfs @ 11.95 hrs, Volume= <br />6 <br />7 <br />Subcatchment 10S: Direct Discharge #1 <br />Hydrograph <br />10 <br />11 <br />r <br />7 cfs <br />Direct Entry, <br />r <br />12 13 14 <br />Time (hours) <br />0.008 af, Depth> 3.43" <br />'ripe 24 :hr_100iyr <br />r Rairrfatl 5.9x0" <br />r r 1 r r <br />Runoff 44ree-1,170 <br />Runoff Atolumo- 0.008ra# <br />1 <br />op <br />.z60.40, <br />Runoff Depth 3 43 - <br />15 <br />r r T =SO-rnirn -- <br />I I r r <br />CN =SO <br />r 1 T r <br />r <br />r <br />r <br />16 <br />17 <br />18 <br />19 <br />20 <br />❑ Runo <br />