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• DITCH C-13 BASIN 24 <br />Time of Concentration (SCS Method) 08/09/1999 <br />Curve Number: 87 <br />Length of Flow (ft): 2046.77 <br />Average Land Slope Q: 4.6 <br />Time of Concentration (hrs): 0.35 <br />Graphical Peak Discharge <br />Project: AMENDMENT By: GL Date: 08/07/99 <br />Location: DITCH C-13 Checked: Date: <br />Developed <br />1. Data: <br />Drainage area:......... <br />......A = 22.3000 Acres <br />Runoff Curve Number :.............CN = 87 <br />Time of Concentration:...........Tc = 0.35 <br /> Pond and swamp areas spread throughout watershed. = 5.00 percent of A <br />. 1 .1150 Acres <br />2. Frequency ...................... ..yr = 10 <br />3. Rainfall,P(24-hour) ......... .....in = 2.00 <br />4. Initial abstraction, la....... ..... = 0.2989 <br />5. Compute la/P ................. ...... = 0.1494 <br />6. Unit peak discharge, qu. .....csm/in = 613.82 <br />7. Runoff,Q ......................... in = 0.9056 <br />8. Pond & swap adjustment factor,...Fp = 0.75 <br />9. Peak Discharge,gp ........ .......cfs = 14.5273 <br />• <br />(Revised 12100) Attachment 2.05.3(3) -10-82 <br />