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Wetted Perimeter: 8.27 <br />Area of Wetted Cross Section: 3.56 <br />Discharge: 25.50 cfs <br />Depth of Flow: 0.51 feet <br />Velocity: 7.16 fps <br />Freeboard: 0.30 feet <br />DITCH C -9 BASIN 14 <br />Time of Concentration (SCS Method) <br />Curve Number: 83 <br />Length of Flow (ft): 2635.18 <br />Average Land Slope (): 12.4 <br />Time of Concentration (hrs): 0.30 <br />Graphical Peak Discharge <br />Project: AMENDMENT By: GL <br />Location: DITCH C -9 Checked: <br />Developed <br />1. Data <br />08/07/1999 <br />Date: 08/07/99 <br />Date: <br />Drainage area: .................... A = 22.7000 Acres <br />Runoff Curve Number: ............. CN = 83 <br />Time of Concentration: ........... Tc = 0.30 <br />Pond and swamp areas spread throughout watershed= 5.00 percent of A <br />1.1350 Acres <br />2. Frequency ........................yr = 10 <br />3. Rainfall ,P(24 - hour) .............. in = 2.00 <br />4. Initial abstraction, la............ = 0.4096 <br />Revised August 2009(PB06) Attachment 2.05.3(3) -1 -19 <br />