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DIVERSION DITCH D-1 BASIN 18 <br />• Time of Concentration (SCS Method) <br />Curve Number: 79 <br />Length of Flow (ft): 1380 <br />Average Land Slope (): 1.9 <br />Time of Concentration (hrs): 0.51 <br />08/07/1999 <br />Graphical Peak Discharge <br />• <br />• <br />Drainage area :....................A = 10.3000 Acres <br />Runoff Curve Number :.............CN = 79 <br />Developed <br />1. Data: <br />08/07/1999 <br />Project: AMENDMENT By: GL Date: 08/07/99 <br />Location: DIVERSION D-1 Checked: Date: <br />Time of Concentration:...........Tc = 0.51 <br />Pond and swamp areas spread throughout watershed = 5.00 percent of A <br /> 0.5150 Acres <br />2. Frequency ..................... ...yr = 10 <br />3. Rainfall,P(24-hour) ........ ......in = 2.00 <br />4. Initial abstraction, la...... ...... = 0.5316 <br />5. Compute la/P ................ ....... = 0.2658 <br />6. Unit peak discharge, qu. .....csm/in = 455.12 <br />7. Runoff,Q ........................ .in = 0.5225 <br />8. Pond 8 swap adjustment factor,...Fp = 0.72 <br />9. Peak Discharge,gp ........ .......cfs = 2.7554 <br />~xev~se~ izioo~ Attachment 2.05.3(3)-1- 23 <br />