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• CULVERT A-10 BASIN 19 <br />Time of Concentration (SCS Method) 08/07/1999 <br />Curve Number: 79 <br />Length of Flow (ft): 645.46 <br />Average Land Slope (): 2.2 <br />Time of Concentration (hrs): 0.26 <br />08/07/1999 <br /> <br />• <br />Graphical Peak Discharge <br />Project: AMENDMENT <br />Location: CULVERT A-10 <br />Developed <br />By: GL <br />Checked <br />Date: 08/07/99 <br />Date: <br />1. Data: <br />Drainage area:.... <br />.A = 7.6700 Acres <br />Runoff Curve Number :.............CN = 79 <br />Time of Concentration:...........Tc = 0.26 <br />Pond and swamp areas spread throughout watershed = 5.00 percent of A <br /> 0.3835 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 = 641.39 <br />7. Runoff,G? ..................... ....in = 0.5225 <br />8. Pond & swap adjustment factor,...Fp = 0.72 <br />9. Peak Discharge,gp ..... ..........cfs = 2.8916 <br />(F2evisea tzioo~ Attachment 2.05.3(3) -10-94 <br />