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<br />0.2-Percent- <br />Annual-Chance <br /> <br />Peak Discharges (cfs) <br />2-Percent- I-Percent- <br />Annual-Chance Annual-Chance <br /> <br />Table 2. Summary of Discharges (Cont'd) <br /> <br />10-Percent- <br />Annual-Chance <br /> <br />Drainage Area <br />Sauare Miles <br /> <br />1 ,900 <br />3,000 <br /> <br />1,550 <br />2,450 <br /> <br />1,400 <br />2,200 <br /> <br />1,030 <br />1,650 <br /> <br />5.3 <br />7.6 <br /> <br />Flooding: Source and Location <br /> <br />Sanderson Gulch <br />At South Sheridan Boulevard (State Highway 95) <br />At West South Platte River Drive <br /> <br />190 <br /> <br />3 <br /> <br />2,530 <br /> <br />2,340 <br /> <br />850 <br /> <br />1 <br /> <br />Weir Gulch <br />At Mouth <br /> <br />First Avenue Tributary <br />At Mouth <br /> <br />1,030 <br /> <br />740 <br /> <br />670 <br /> <br />410 <br /> <br />5 <br /> <br />1 <br /> <br />Dakota Avenue Tributary <br />At Mouth <br /> <br />465 <br /> <br />355 <br /> <br />300 <br /> <br />200 <br /> <br />0.7 <br /> <br />Sand Creek <br />Downstream of Confluence with Westerly Creek <br /> <br />33,000 <br /> <br />965 <br />15,935 <br /> <br />30,000 <br /> <br />641 <br />12,858 <br /> <br />22,400 <br /> <br />10,000 <br /> <br />184.0 <br /> <br />Sand Creek Overflow <br />At Divergence from Sand Creek <br />950 Feet Above Confluence with Sand Creek <br /> <br />31,500 <br />31,500 <br />35,000 <br /> <br />16,500 <br />19,200 <br />22,300 <br /> <br />-] <br /> <br />12,700 <br />15,000 <br />1 7,600 <br /> <br />-1 <br /> <br />6,400 <br />8,000 <br />9,700 <br /> <br />-1 <br /> <br />-] <br />-1 <br /> <br />Only) <br /> <br />South Platte River (Main Channel <br />At West Dartmouth Avenue <br />At 6th Avenue <br />At 15th Street <br /> <br />........ <br />\0 <br /> <br />9,150 <br />1,320 <br /> <br />6,790 <br />1 ,000 <br /> <br />5,780 <br />870 <br /> <br />3,680 <br />570 <br /> <br />1 <br />-1 <br /> <br />Westerly Creek <br />At Mouth <br />At Colfax Avenue <br /> <br />Westerly Creek Overflow <br />At Confluence with Westerly Creek <br /> <br />471 <br /> <br />Parkway <br /> <br />South Monaco Street Parkway Overflow <br />At Intersection of South Monaco Street <br />and Florida Avenue <br /> <br />456 <br /> <br />262 <br /> <br />158 <br /> <br />24 <br /> <br />Data Not Available <br />