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<br /> Table 2. Summary of Discharges <br /> Drainage Area Peak Discharges (Cubic Feet per Second) <br /> Flooding Source and Location (Square Miles) 10-Year 50-Year 100-Year 500-Year <br /> Sand Creek <br /> At Confluence With South Platte River 196.0 11 ,000 24,200 30,500 36,200 <br /> At Quebec Street 189.0 10,500 23,300 30,000 33,000 <br /> South Fork Grange Hall Creek <br /> At Mouth 1.7 639 797 856 1,100 <br /> South Platte Riverl <br /> At Confluence With Todd Creek 5,026.0 12,000 24,500 34,000 58,000 <br /> At Confluence With Clear Creek 4,572.0 13,000 28,000 37,000 66,000 <br /> Tanglewood Creek <br /> At Confluence With Big Dry Creek 1.12 340 758 934 1,655 <br />N At Upstream Study Limit 0.11 105 217 253 424 <br />'" <br /> Tributary M of Niver Creek <br /> At Pecos Street 0.92 490 2 1,050 2 <br /> At Bryant Drive 0.49 450 -2 925 -2 <br /> At Upstream Limit of Study Near Elm 2 2 <br /> ci rcl e 0.18 88 200 <br /> <br />lAssuming Chatfield and Cherry Creek Dam Gates Closed when Flow at Gage Reached 5,000 cfs <br />2Data Not Available <br />