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SWB -6 Initial 100YR Discharge.txt <br />Graphical Peak Discharge Mon Nov 26 13:26:37 2012 <br />Project: SWB -6 Initial By: B Langenfeld Date: 11/26/12 <br />Location: Revenue Mine checked: Date: <br />Developed <br />1. Data: <br />Drainage area: .................... A = 5.3458Acres <br />Runoff Curve Number: ............. CN = 68 <br />Time of concentration: ........... TC = 0.11 <br />Page 1 <br />Storm Type: ....................... = <br />II <br />Pond and swamp areas spread <br />throughout watershed ............... = <br />0.00 percent of A <br />0.0000 Acres <br />2. <br />Frequency ........................yr = <br />100 <br />3. <br />Rainfall ,P(24 - hour) .............. in = <br />3.20 <br />4. <br />Initial abstraction, Ia............ = <br />0.9412 <br />5. <br />Compute Ia /P ....................... = <br />0.2941 <br />6. <br />unit peak discharge, qu ...... csm /in = <br />917.30 <br />7. <br />Runoff ,Q .........................in = <br />0.7326 <br />8. <br />Pond & swap adjustment factor .... Fp = <br />1.00 <br />9. <br />Peak Discharge,gp ...............cfs <br />= 5.6131 <br />Page 1 <br />