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CULVERT A-9 BASIN 15 <br />Time of Concentration (SCS Method) <br />Curve Number: 88 <br />Length of Flow (ft): 620.94 <br />Average Land Slope Q: 11.7 <br />Time of Concentration (hrs): 0.08 <br />Graphical Peak Discharge <br />Project: AMENDMENT <br />Location: CULVERT A-9 <br />Developed <br />08/07/1999 <br /> <br />r, <br />\J <br />1. Data: <br />Drainage area <br />Runoff Curve Number: <br />By: GL <br />Checked: <br />....A = 6.5700 Acres <br />CN=88 <br />Time of Concentration:...........Tc = 0.08 <br />08/07/1999 <br />Date: 08/07/99 <br />Date: <br />Pond and swamp areas spread throughout watershed. = 5.00 percent of A <br />0.3285 Acres <br />2. Frequency ........................yr = 10 <br />3. Rainfall,P(24-hour) ..............in = 2.00 <br />4. Initial abstraction, la............ = 0.2727 <br />5. Compute la/P ....................... = 0.1364 <br />6. Unit peak discharge, qu......csm/in = 990.91 <br />7. Runoff,Q .........................in = 0.9652 <br />8. Pond & swap adjustment factor,...Fp = 0.75 <br />9. Peak Discharge,gp ...............cfs = 7.3640 <br />(Revised 12/00) Attachment 2.05.3(3) -10-93 <br />