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EXISTING CONDITIONS <br />MSE 24-hr 3 10yr Rainfall=4.25"16628 SWMP <br /> Printed 12/6/2021Prepared by {enter your company name here} <br />Page 2HydroCAD® 10.00-25 s/n 00837 © 2019 HydroCAD Software Solutions LLC <br />Summary for Subcatchment 1X: EXISTING SITE <br />Runoff = 5.91 cfs @ 12.19 hrs, Volume= 0.337 af, Depth= 1.55" <br />Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-48.00 hrs, dt= 0.05 hrs <br />MSE 24-hr 3 10yr Rainfall=4.25" <br />Area (sf) CN Description <br />108,143 69 50-75% Grass cover, Fair, HSG B <br />* 3,345 98 DRIVEWAY <br />* 1,900 98 HOUSE/GARAGE <br />113,388 Weighted Average <br />108,143 95.37% Pervious Area <br />5,245 4.63% Impervious Area <br />Tc Length Slope Velocity Capacity Description <br />(min) (feet) (ft/ft) (ft/sec) (cfs) <br />10.0 Direct Entry, <br />Subcatchment 1X: EXISTING SITE <br />Runoff <br />Hydrograph <br />Time (hours) <br />484644424038363432302826242220181614121086420Flow (cfs)6 <br />5 <br />4 <br />3 <br />2 <br />1 <br />0 <br />MSE 24-hr 3 <br />10yr Rainfall=4.25" <br />Runoff Area=113,388 sf <br />Runoff Volume=0.337 af <br />Runoff Depth=1.55" <br />Tc=10.0 min <br />CN=WQ <br />5.91 cfs