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Type II 24-hr 100-year Rainfall=7.29"25018 Proposed Hydro <br /> Printed 10/29/2025Prepared by Land & Resource Consulting Inc <br />Page 34HydroCAD® 10.20-7a s/n 12643 © 2025 HydroCAD Software Solutions LLC <br />Summary for Subcatchment 6S: Site to Driveway Culvert <br />Runoff = 0.79 cfs @ 11.98 hrs, Volume= 1,911 cf, Depth= 6.04" <br /> Routed to Reach 3R : Driveway Culvert <br />Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-72.00 hrs, dt= 0.01 hrs <br />Type II 24-hr 100-year Rainfall=7.29" <br />Area (sf) CN Description <br />2,400 98 Roofs, HSG C <br />1,400 74 >75% Grass cover, Good, HSG C <br />3,800 Weighted Average <br />1,400 36.84% Pervious Area <br />2,400 63.16% Impervious Area <br />Tc Length Slope Velocity Capacity Description <br />(min) (feet) (ft/ft) (ft/sec) (cfs) <br />7.0 Direct Entry, <br />Subcatchment 6S: Site to Driveway Culvert <br />Runoff <br />Hydrograph <br />Time (hours) <br />727068666462605856545250484644424038363432302826242220181614121086420 <br />Fl <br />o <br />w <br /> <br /> <br />( <br />c <br />f <br />s <br />) <br />0.85 <br />0.8 <br />0.75 <br />0.7 <br />0.65 <br />0.6 <br />0.55 <br />0.5 <br />0.45 <br />0.4 <br />0.35 <br />0.3 <br />0.25 <br />0.2 <br />0.15 <br />0.1 <br />0.05 <br />0 <br />Type II 24-hr <br />100-year Rainfall=7.29" <br />Runoff Area=3,800 sf <br />Runoff Volume=1,911 cf <br />Runoff Depth=6.04" <br />Tc=7.0 min <br />CN=WQ <br /> 0.79 cfs