Laserfiche WebLink
<br /> <br />lfiDROLCGY <br />CLEAR CREEK <br />JE1<'F~.SON AND ADAMS COUNTIES, ,COLORADO <br /> <br />1. GENERAL. This hydrologic study of Clear Creek was made in support of <br /> <br />the flood hazard evaluations being made by the Colorado Water Conservation <br /> <br />Board and the Urban Drainage and Flood Control District. Discharges for <br /> <br />tbe 10-, 50-, 100-, and 500-year floods are presented for the reach from <br /> <br />the Jefferson-Clear Cl~ek county line downstream to the confluence of Clear <br /> <br />Creek with the South Platte River. <br /> <br />2. BASIN DESCRIPrION. Clear Creek, a left bank tributary to the South <br /> <br />Platte River, has its source in the Rocky Mountains west of Denver, Colorado. <br /> <br />Flowing in a generallJ' easterly direction from the Continental Divide, Clear <br /> <br />Creek enters the high plains at Golden, Colorado. The drainage area at the <br /> <br />Golden gage near the bluft' lj.ne is 400 square miles. From Golden, Clear <br /> <br />Creek flows in a northeasterly direction through Wheat Ridge and a portion <br /> <br />of Adams County to ite: confluence with the South Platte near Derby. The <br /> <br />Derby gage, which is located 0.6 mile upstream from the moUth of Clear Creek, <br /> <br />has a drainage area of 575 square miles. Elevations in the basin range from <br /> <br />5,100 feet abcve mean sea level to over 14,000 feet above mean sea level. <br /> <br />A map of the Clear Creek basin is presented on attachment 1. <br /> <br />3. EXISTING STRUCTUlill3. <br /> <br />a. General. There are 11 major reservoirs in the lower Clear Creek basin. <br /> <br />Three of these are on-stream reservoirs which provide some residual flood <br /> <br />