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IVY PLACE - PROPOSED CONDITIONS <br /> 17059 - IVY PLACE - PROPOSED Type 1124-hr 10-YEAR Rainfall=4.24" <br /> Prepared by Microsoft Printed 7/17/2017 <br /> HydroCAD® 10.00-19 s/n 02202 ©2016 HydroCAD Software Solutions LLC Page 20 <br /> Summary for Subcatchment PR 1A: PROP DA 1A <br /> Runoff = 0.62 cfs @ 11.97 hrs, Volume= 0.028 af, Depth> 2.85" <br /> Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-20.00 hrs, dt= 0.01 hrs <br /> Type II 24-hr 10-YEAR Rainfall=4.24" <br /> Area (sf) CN Description <br /> 2,626 98 Paved parking, HSG D <br /> 2,573 80 >75% Grass cover, Good, HSG D <br /> 5,199 89 Weighted Average <br /> 2,573 49.49% Pervious Area <br /> 2,626 50.51% Impervious Area <br /> Tc Length Slope Velocity Capacity Description <br /> (min) (feet) (ft/ft) (ft/sec) (cfs) <br /> 6.0 Direct Entry, <br /> Subcatchment PR 1A: PROP DA 1A <br /> Hydrograph <br /> Runoff <br /> 0.65 0.62 cfs l <br /> 0.6= Type II 24-hr <br /> 0.55 <br /> 10-YEAR Rainfall=4.24" 4 . <br /> 05= Runoff Area=5,199 sf <br /> 0.45. Runoff Volume=0.028 af <br /> 0.4- <br /> 3 0.35- <br /> Runoff Depth>2.85" <br /> 0.3= Tc=6.0 min <br /> CN=89 • <br /> 0.2- <br /> °,00.15 <br /> 0.1 ;AL3 <br /> 0.05 <br /> 0 � f �� "ZZ,—r/- <br /> 1 2 3 4 5 6 7 8 9 10 11 12 13 '14 1b 1fi 117 18 19 20 <br /> Time (hours) <br />