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<br />. <br /> <br />Flood of 2-3 SeDtember 1938. On 2 September 1938, heavy rains centered over the <br />upper Mt. Vernon Creek drainage basin which resuRed in extensive flooding in the Bear <br />Creek basin. A peak discharge estimated to be 9,000 cubic feet per second from a <br />drainage area of 4.3 square miles occurred at the rnouth of Cold Spring Gulch upstream <br />from Morrison. Estimated discharges of Mount Vernon Creek at the mouth and 1.5 miles <br />upstream from Morrison were 9,000 and 4,200 cubic feet per second, respectively. Six <br />persons were drowned when trapped in their automobile on the highway between Morrison <br />and Kittredge. Downstream from the mouth of Cold Spring Gulch, damages were <br />estimated at $451 ,700 based on 1938 price levels. Upstream residents on both Bear and <br />Mount Vernon Creeks warned the town of Morrison of the coming high water, which <br />probably averted loss of life. Had thB flood occurred at a later hour or had no warning <br />been given, n is believe that the residents of Morrison could not have escaped wnhout <br />considerable loss of Iifec <br /> <br />) <br /> <br />Flood of 24 AUGust 1946. On 24 August 1946, a heavy rain near ldledale caused Bear <br />Creek to overflow. A Morrison woman was swept from her stranded car and drowned. <br /> <br />Flood of 9 Mav 1957. Flood flows resulting, from sustained rainfall over lower Bear <br />Creek on 9 May caused considerable damage to a bridge under construction at Wadsworth <br />Avenue and to residences in the area. High, sustained, wnhin channel flows through <br />Sheridan caused severe bank erosion and endangered homes bordering both banks. <br />Urban damages for this flood were estimated at $20,000. <br /> <br />Flood of 21 AUGust 1957. On the afternoon of 21 August 1957 thunderstorms occurred <br />over the Bear Creek basin, wnh heavy rain and hail beginning about 1 :00 p.m. on the east <br />side of Squaw Pass northwest of Evergreen. At. most locations, the rain stopped wnhin an <br />hour. Peak discharges at Morrison were 1,000 cfs on Mount Vernon Creek at 2:30 p.m. <br />and 1 640 cfs on Bear Creek at 3:00 p.m. While most damages from Bear Creek occurred <br />downstream of Morrison, Mount Vernon Creek left debris on the grounds of six or seven <br />residence in Morrison, flooded a garage and a used car lot and broke a water main. State <br />Highway 8 at Morrison was closed upon warning of the flood; later portions of the highway <br />were flooded by both streams. <br /> <br />Flood 23-26 Julv 1965. On 23 and 24 July 1965, heavy rains over the headwaters of <br />Bear Creek caused minor flooding, throughout ns length. Most damages occurred <br />downstream of Morrison. In metropolnan Denver, reports indicate that 25 were evacuated, <br />15 basements and a tourist court were floodBd, and several bridges were damaged. The <br />peak-discharge on Bear Creek at Morrison was 1,030 cfs on 25 July. <br /> <br />Flood of 4-8 Mav 1969. Heavy rains from 4 through 8 May 1969 resuRed in flooding <br />in the Bear Creek basin wtth the most damage downstream from Morrison. The weather <br />station at Morrison reported a total storm rainfall of 11.27 inches, with a maximum daily <br />amount of 5.77 inches. Unofficial rainfall amounts in the basin varied from 6.7 inches to <br />11.8 inches during the storm period of 5 days. The peak flows for Bear Creek at Morrison <br />was 2,340 cfs on 7 Mayc <br /> <br />!' <br /> <br />. <br /> <br />Colorado Flood <br />Hydrology Manual <br /> <br />4.7 <br /> <br />aw=r <br />