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<br />several watersheds. This storm affected Little Dry Creek, Big Dry Creek, Plum Creek, and <br />Cherry Creek. The simu~aneous flooding of these four streams was the primary cause of <br />flooding on the South Platte River. <br /> <br />.. <br /> <br />Flood of 10 Seotember 1933. Heavy rains of cloudburst proportions centered over the <br />Little Dry Creek basin and resu~ed in the greatest flood of record. The estimated <br />discharge of the stream during the flood was 10,000 cubic feet per second. Water rose <br />in the residences as much as 3 feet above their first-floors. Heavy damages also were <br />inflicted on business establishments and utilnies in Englewood wnh some of the business <br />buildings moved off their foundations by the high velocnies. Floodwaters extended from <br />two blocks north to a han block south of the channel throughout its course through the <br />urban area. Almost all of the street and highway bridges in Englewood were severely <br />damaged and the total loss was estimated at approximately $180,000. EnglBwood Dam <br />was later constructed on this stream, but a storm of this magnnude would still cause <br />serious flooding. <br /> <br />. <br /> <br />Flood of 3 Auaust 1956. A series of storms between 30 July and 3 August over the <br />Denver area, including the Little Dry Creek basin culminated in more than 12 inches of rain <br />being reported, for the period, in Englewood and the surrounding areas. Debris-blocked <br />channels forced Little Dry Creek out of bank at several locations in Englewood and <br />discharges exceeded channel capacny below the town, flooding lowland areas. The peak <br />discharge through town was limited to 1,000 cubic feet per second by operation of the <br />Englewood Dam 9 miles upstream. Floodwaters inundated South University Boulevard <br />and Bellevue Road. Debris blocked the bridges forcing the water over the roads. The <br />bridge at Girard Avenue and Bannock Street - since replaced by a condun had damage <br />to ns approaches. A small gon course near Santa Fe Drive had an estimated damage <br />of $3,000. Flood damages were caused in Englewood by sidehill runoff as well as <br />overflows of Little Dry Creek. Damages, including those incurred by sidehill runoff, were <br />greater than $30,000. A~hough the dollar damage of this flood can be considered minor, <br />n is apparent that a flood threat still Bxists along Little Dry Creek even wnh Englewood <br />Dam. <br /> <br />4.1.4 BEAR CREEK <br /> <br />, <br /> <br />Flood Historv. Flooding on Bear Creek is typical of mountainous areas, wnh flash <br />floods resu~ing from intense rainfall over small areas. The source of a large percentage <br />of floods occurring on Mount Vernon and Bear Creeks at Morrison, Colorado, are storms <br />in the Genesee Mountain area. These floods are generally characterized by rapid <br />concentration of runoff, unusually high peak discharges, and almost equally rapid recession <br />time. Since 1876, 22 floods have been recorded in the Bear Creek basin ranging from <br />relatively minor to major floods causing considerable property damage and frequent loss <br />of lffe. Records indicate a total of 45 lives have been lost from floods in the basin. <br /> <br />. <br /> <br />Colorado Flood <br />Hydrology Manual <br /> <br />4.5 <br /> <br />a:w=r <br />