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, , . � <br /> Stonebrooke Engineering <br /> 3227 Casco Circle, Orono MN Courtyard Type 1124-hr 100-year(2) Rainfa11=5.90"x 2 <br /> Prepared by Stonebrooke Engineering Printed 9/19/2013 <br /> HvdroCADO 10.00 s/n 02307 O 2012 HydroCAD Software Solutions LLC Paqe 9 <br /> Summary for Subcatchment 14S: (new Subcat) <br /> Runoff = 0.65 cfs @ 35.98 hrs, Volume= 0.065 af, Depth= 9.25" <br /> Runoff by SCS TR-20 method, UH=SCS, Time Span= 1.00-50.00 hrs, dt= 0.01 hrs <br /> Type II 24-hr 100-year(2) Rainfa11=5.90" x 2 <br /> Area (sf) CN Description <br /> 869 98 Roofs, HSG B <br /> 2,788 74 >75% Grass cover, Good, HSG C <br /> 3,657 80 Weighted Average <br /> 2,788 76.24% Pervious Area <br /> 869 23.76% Impervious Area <br /> Tc Length Slope Velocity Capacity Description <br /> (min) (feet) (ft/ft) (ft/sec) (cfs) <br /> 7.0 Direct Entry, <br />