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CULVERT A-4 BASIN 7 <br />Time of Concentration (SCS Method) 08/07/1999 <br />n <br />LJ <br />Curve Number: 87 <br />Length of Flow (ft): 607.40 <br />Average Land Slope Q: 13 <br />Time of Concentration (hrs): 0.08 <br />Graphical Peak Discharge <br />Project: AMENDMENT <br />Location: CULVERT A-4 <br />08/07/1999 <br />By: GL Date: 08/07/99 <br />Checked: Date: <br />Developed <br />1. Data: <br />Drainage area :....................A = 9.0000 Acres <br />Runoff Curve Number :.............CN = 87 <br />Time of Concentration:...........Tc = 0.08 <br />Pond and swamp areas spread throughout watershed. = 5.00 percent of A <br />0.4500 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 = 987.64 <br />7. Runoff,Q ........................ .in = 0.9056 <br />8. Pond & swap adjustment factor,...Fp = 0.75 <br />9. Peak Discharge,gp ........ .......cfs = 9.4337 <br />• ~aev~seD izioo> Attachment 2.05.3(3)-1- 27 <br />