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MSE 24-hr 3 10-Year Rainfall=4.19"Existing Conditions <br /> Printed 12/27/2019Prepared by Larson Engineering <br />Page 9HydroCAD® 10.00-21 s/n 01934 © 2018 HydroCAD Software Solutions LLC <br />Summary for Subcatchment A: <br />Runoff = 33.38 cfs @ 12.57 hrs, Volume= 163,905 cf, Depth= 2.38" <br />Runoff by SCS TR-20 method, UH=SCS, Split Pervious/Imperv., Time Span= 0.00-90.00 hrs, dt= 0.01 hrs <br />MSE 24-hr 3 10-Year Rainfall=4.19" <br />Area (sf)CN Description <br />* 6,782 98 Impervious <br />498,665 80 >75% Grass cover, Good, HSG D <br />203,793 89 Row crops, straight row, Good, HSG D <br />117,431 77 Woods, Good, HSG D <br />826,671 82 Weighted Average <br />819,889 99.18% Pervious Area <br />6,782 0.82% Impervious Area <br />Tc Length Slope Velocity Capacity Description <br />(min) (feet) (ft/ft) (ft/sec) (cfs) <br />8.3 114 0.1200 0.23 Sheet Flow, <br />Grass: Dense n= 0.240 P2= 2.75" <br />24.8 186 0.0210 0.12 Sheet Flow, <br />Grass: Dense n= 0.240 P2= 2.75" <br />8.2 593 0.0300 1.21 Shallow Concentrated Flow, <br />Short Grass Pasture Kv= 7.0 fps <br />41.3 893 Total