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--- Cyprus Empire Corporation --- <br /> <br /> <br /> <br />* RESULTS TO DRAINAGE TO POND 9-P2 <br />* <br />* ******************************************************************** ********** <br /> <br />* Total Drainage Area to This Point = 130.141 acres <br />* Drainage Area Between Previous Structure and This One = 84.283 acres <br /> <br />* Basin Trap Efficiency = 96.631 ~ <br /> <br />* EMERGENCY SPILLWAY OUTSLOPE DESIGN: <br />* * <br />* Design Discharge = 1.714 cfs <br />* Velocity = 2.672 fps <br />* Depth of Flow = 0.085 feet <br />* Manning's n = 0.028 <br />* D50 Channel Bed = 0.089 feet <br />* D50 Channel Bank = 0.128 feet <br />* <br />* DETAILED STAGE-DISCHARGE INFORMATION <br /> <br />* TOTAL <br />* ELEVATION STAGE P5W #1 ESW DISCHARGE <br />* (ft) (cfs) (cfs) (cfs) <br /> <br />* 0.00 0.00 0.00 0.00 <br />* 0.50 0.00 0.00 0.00 <br />* 1.00 0.00 0.00 0.00 <br />* 1.50 0.00 0.00 0.00 <br />* 2.00 0.00 0.00 0.00 <br />* 2.50 0.00 0.00 0.00 <br />* 3.00 0.00 0.00 0.00 <br />* 3.50 0.00 0.00 0.00 <br />* 4.00 0.00 0.00 0.00 <br />* 4.50 0.00 0.00 0.00 <br />* 5.00 0.00 0.00 0.00 <br />* 5.50 0.00 0.00 0.00 <br />* 6.00 0.00 0.00 0.00 <br />* 6.50 0.00 0.00 0.00 <br />* 7.00 0.00 0.00 0.00 <br />* 7.50 0.00 0.00 0.00 <br />* 8.00 0.00 0.00 0.00 <br />* 8.50 0.00 0.00 0.00 <br />* 9.00 0.00 0.00 0.00 <br />* 9.50 0.00 0.00 0.00 <br />* 10.00 0.00 0.00 0.00 <br />* 10.60 0.08 7.09 7.17 <br />* 10.70 0.08 9.20 9.28 <br />* 10.80 0.09 12.13 12.22 <br />* 10.90 0.09 15.06 15.15 <br />* ~ <br />11.00 0.10 18.62 18.72 <br />* 11.50 0.12 40.23 40.35 <br />* 12.00 0.14 70.81 70.95 <br />***************************************************************************** ** <br />Exhibit 18 Revised 12/8/89 <br />-100- <br />