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<br />. <br /> <br />dam safety legislation and many have the capability to perform or <br /> <br /> <br />administer their own dam safety program. ColDrado has an approved dam <br /> <br /> <br />safety program. <br /> <br />Dam failures have occurred in the Cache la Poudre River basin and <br /> <br /> <br />in nearby areas. Chambers Lake dam located in the mountainous part of <br /> <br />the basin, failed in 1891 and in 1907. Heavy rains in June 1949 caused <br /> <br /> <br />Lord Reservoir on Lost Creek to be overtopped; it caused damage to the <br /> <br /> <br />town of Roggen about 20 miles southeast of Greeley. Heavy rainfall <br /> <br /> <br />caused the overtopping and failure of Buckhorn Dam on Buckhorn Creek <br /> <br /> <br />about 10 p.m. on 3 August 1951; this creek is a tributary of the Big <br /> <br /> <br />Thompson River and the dam is located about 6 miles west of Loveland. <br /> <br /> <br />This failure caused severe flooding downstream to the vicinity of <br /> <br /> <br />Loveland, A relatively short distance to the southeast of the Cache la <br /> <br /> <br />Poudre River basin, spillage from lower Latham Dam caused flood damage <br /> <br /> <br />to the community of Kersey on 12 April 1973. The Prospect Valley Dam <br /> <br />in southeast Weld County failed on 10 February 1980 several hours after <br /> <br /> <br />a leak was noted at its southeast end, Officials said the failure was <br /> <br /> <br />prDbably caused by animal burrowing. <br /> <br />DEFINITIONS <br /> <br />The hydrologic evaluation of inspected dams was based on hazard <br /> <br /> <br />potential classification and on size. For purposes of the National Dam <br /> <br /> <br />Safety PrDgram, these are defined in "Recommended Guidelines for Safety <br /> <br /> <br />Inspection of Dams" by the Department of the Army, Office of the Chief <br /> <br /> <br />of Engineers. <br /> <br />The hazard potential classification is related to existing <br /> <br /> <br />development in flood hazard areas downstream from dams, as defined in <br /> <br />table 10. <br /> <br />. <br /> <br />37 <br />