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S:\plowe\cad\23proj\2129 Jerry Carlson Little Canada\2129 MISC\Round 1 - 12.28.23\ <br />MSE 24-hr 3 2-Year Rainfall=2.81"2129 Sunrise Over Gervais - Existing (12-28-2023) <br /> Printed 12/28/2023Prepared by Plowe Engineering, Inc. <br />Page 4HydroCAD® 10.00-26 s/n 01574 © 2020 HydroCAD Software Solutions LLC <br />Summary for Subcatchment E1: WESTERN AREA <br />Runoff = 0.25 cfs @ 12.17 hrs, Volume= 0.020 af, Depth= 0.30" <br />Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-100.00 hrs, dt= 0.01 hrs <br />MSE 24-hr 3 2-Year Rainfall=2.81" <br />Area (sf) CN Description <br />* 35,232 61 PERVIOUS <br />35,232 100.00% Pervious Area <br />Tc Length Slope Velocity Capacity Description <br />(min) (feet) (ft/ft) (ft/sec) (cfs) <br />7.0 Direct Entry, DIRECT <br />Summary for Subcatchment E2: MIDDLE AREA <br />Runoff = 0.35 cfs @ 12.22 hrs, Volume= 0.031 af, Depth= 0.37" <br />Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-100.00 hrs, dt= 0.01 hrs <br />MSE 24-hr 3 2-Year Rainfall=2.81" <br />Area (sf) CN Description <br />43,465 61 PERVIOUS <br />* 1,397 98 IMPERVIOUS <br />44,862 Weighted Average <br />43,465 96.89% Pervious Area <br />1,397 3.11% Impervious Area <br />Tc Length Slope Velocity Capacity Description <br />(min) (feet) (ft/ft) (ft/sec) (cfs) <br />7.9 100 0.0400 0.21 Sheet Flow, sheet <br />Grass: Short n= 0.150 P2= 2.83" <br />2.7 405 0.0270 2.46 Shallow Concentrated Flow, shallow <br />Grassed Waterway Kv= 15.0 fps <br />10.6 505 Total <br />Summary for Subcatchment E3: EAST AREA <br />Runoff = 1.27 cfs @ 12.15 hrs, Volume= 0.077 af, Depth= 0.96" <br />Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-100.00 hrs, dt= 0.01 hrs <br />MSE 24-hr 3 2-Year Rainfall=2.81"