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<br />. <br /> <br />. <br /> <br />Flooding Source and Location <br /> <br />Coal Creek <br />At Confluence With Rock Creek <br />65,250 Feet Above Mouth <br />At Burlington Northern Railroad <br />At U.S. Highway 287 <br />79,350 Feet Above Mouth <br /> <br />Rock Creek <br />At Confluence With Coal Creek <br />At Downstream Corporate Limits <br />At South 120th Street <br />At Upstream Corporate Limits <br /> <br />--.J <br /> <br />. <br /> <br />. <br /> <br />Table 1. Summary of Discharges <br />Drainage Area Peak Discharges (Cubic Feet per Second) <br />(Square Miles) 10-Year 50-Year 100-Year 500-Year <br />59.3 5,120 8,740 10,640 15,920 <br />37.6 2,860 3,620 4,250 6,260 <br />36.3 2,330 3,490 4,120 6,170 <br />35.6 2,370 3,480 4,110 6,160 <br />33.7 2,230 3,420 4,040 6,060 <br />21. 6 2,870 5,350 6,690 10,240 <br />21. 5 2,900 5,400 6,710 10,270 <br />21. 3 2,910 5,410 6,740 10,310 <br />18.7 2,900 5,360 6,640 10,050 <br />