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ZZZ15326 Existing Proposed Drainage - Wetland Type II24-hr 100-yrRainfall=7.06" <br />Prepared by Microsoft Printed 6/8/2017 <br />HydroCAD® 10.00-14 s/n 01542 ©2015 HydroCAD Software Solutions LLC Pape 34 <br />Summary for Subcatchment 3S: TO INFILTRATION A <br />Runoff = 1.48 cfs @ 12.04 hrs, Volume= <br />0.095 af, Depth= 3.01" <br />Runoff by SCS TR-20 method, UH=SCS, Split Pervious/Imperv., Time Span= 0.00-72.00 hrs, dt= 0.01 hrs <br />Type II 24-hr 100-yr Rainfall=7.06" <br />Area (sf) CN Description <br />3,750 98 Paved parking, HSG B <br />7,665 61 >75% Grass cover, Good, HSG B <br />5,000 39 >75% Grass cover, Good, HSG A <br />16,415 63 Weighted Average <br />12,665 52 77.16% Pervious Area <br />3,750 98 22.84% Impervious Area <br />Tc Length Slope Velocity Capacity Description <br />(min) (feet) (ft/ft) (ft/sec) (cfs) <br />11.4 120 0.0230 0.18 Sheet Flow, <br />Grass: Short n= 0.150 P2= 2.85" <br />0 <br />LL <br />0 <br />1 48 cfs <br />Subcatchment 3S: TO INFILTRATION A <br />i• <br />Hyd rog raph <br />Type 1124-h r <br />100-yr Rainfall=7.o6'l <br />Runoff Area-16,415 sf <br />Runott VoILIme 0,..0p5.....a <br />Runoff Depth=3.01" <br />Flow Length--120' <br />Sloae=(1.0230 <br />Tc=11.4 m0 <br />C N=52/98 <br />/4' <br />2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48 50 52 54 56 58 60 62 64 66 68 70 72 <br />Time (hours) <br />■ Runoff <br />