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SWB -1 Initial 100YR Graphical Peak Discharge.txt <br />Graphical Peak Discharge Thu pan 10 14:52:00 2013 <br />Project: SwB -1 Initial By: B Langenfeld Date: 01/10/13 <br />Location: Revenue Mine Checked: Date: <br />Present <br />1. Data: <br />Drainage area: .................... A <br />Runoff curve Number: ............. CN <br />Time of concentration: ........... Tc <br />Storm Type: ....................... <br />Pond and swamp areas spread <br />throughout watershed ............... <br />30.3760Acres <br />75 <br />0.18 <br />II <br />0.00 percent of A <br />0.0000 Acres <br />2. <br />Frequency ........................yr <br />= 100 <br />3. <br />Rainfall ,P(24 - hour) .............. <br />in <br />= 3.20 <br />4. <br />Initial abstraction, Ia............ <br />= 0.6667 <br />5. <br />Compute Ia /P ....................... <br />= 0.2083 <br />6. <br />unit peak discharge, qu <br />...... csm /in <br />= 780.35 <br />7. <br />Runoff ,Q .........................in <br />= 1.0939 <br />8. <br />Pond & swap adjustment <br />factor .... Fp <br />= 1.00 <br />9. <br />Peak Discharge,gp ...............cfs <br />= 40.5167 <br />Page 1 <br />