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Peak Flow Large Area for Large Channel Design <br />Graphical Peak Discharge Fri Jul 15 09:22:37 2011 <br />Project: Peak Flow Big Area By:Ryan Ellis Date: 07/15/11 <br />Location: <br />Checked: Date: <br />Present <br />1. Data: <br />Drainage area A = 52.2800 Acres (swB 6 and swB 7) <br />Runoff Curve Number. CN = 88 <br />Time of Concentration. Tc = 0.20 <br />Storm Type = II <br />Pond and swamp areas spread <br />throughout watershed = 0.00 percent of A <br />0.0000 Acres <br />2. Frequency yr = 100 <br />3. Rainfall,P(24 -hour) in = 2.60 <br />4. Initial abstraction, Ia = 0.2727 <br />5. Compute Ia /P = 0.1049 <br />6. Unit peak discharge, qu csm /in = 797.55 <br />7. Runoff,Q in = 1.4674 <br />8. Pond & swap adjustment factor, Fp = 1.00 <br />9. Peak Discharge,qp cfs = 95.6040 <br />Page 1 <br />