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<br />about 10:00 P,M, and lasted approximately two hours, Most of the damage occurred to <br />highways, bridges, and irrigation structures upstream. <br /> <br />Flood of 19-23 June 1947, Heavy rains, including 2,7 inches in 1,5 hours at Windsor <br />on 20 June, and metting snow once more caused the Cache la Poudre River to overflow <br />in the Greeley area. Damages were about evenly divided between urban and rural areas, <br />An estimated 200 inhab~ants of 100 homes in the floodplain were evacuatec!. A dike on <br />north 9th Avenue broke early on the 23rd resutting in flooding of a residential area there, <br />No bridges were destroyed atthough a number were closed to traffic during the flooding, <br />It was reported that about 170 acres wem flooded in Greeley, Damages wem suffered to <br />irrigation structures upstream of GreelHY. <br /> <br />Flood Of 3-4 Auaust1951 , A heavy rainstorm over the Rocky Mountain foothills on <br />3 August 1951, w~h nearly 12 inches measured near Bellevue, Colorado in tile Cache la <br />Poudre -River basin, caused severe flooding along that stream, No damages were <br />reported in the study reach and accounts of the Flood indicate that the Fort Collins area <br />was not affected, <br /> <br />Flood of June 1965, Heavy to torrential rainfall over large portions of the South Platte <br />River basin w~h the Cache la Poudre Riv~!r basin receiving ~s greatest amounts on 14 and <br />15 June caused flooding throughout the study reach, Flood damage at Greeley was <br />estimated at 885,000, Rural damages were about $700,000 for the Cache la Poudre River <br />basin including the study reach, The Gmeley Tribune of 17 June 1965 repor1ed: <br />"The Cache la Poudre was spreading out into the lowlands north and east of Greeley <br />. ' , Police were forced to close the 6th Avenue bridge and the 5th Street bridge, , , At 5th <br />Street, water was spilling out of the banks to the east on the north side of the bridge. <br /> <br />4.1.14 KIOWA CREEK <br /> <br />Flood Historv, Floods in the Kiowa Creek basin are caused by runoff from intense <br />thunderstorm rainfall. Knowledge of historical floods is Iim~ed to three major events, <br />These events are discussed below, <br /> <br />Flood of 21 Mav 1878, No precip~ation or discharge estimates are available for this <br />flood, However, data presented in the United States Geological Survey Water Supply <br />Paper No, 997, en@ed "Floods in Colorado" indicates that a substantial flood did occur. <br />The above publication reprinted the following article taken from the Colorado Magazine of <br />July 1937: "Among the unsolved mystl~ries in Colorado's history is the disappearance <br />of a standard gage Kansas Pacific (now Union Pacific) locomotive in the quicksands of <br />Kiowa Creek on the night of May 21 , '1878, A sudden flood had destroyed the wooden <br />bridge that crossed the usually dry channel a short time before a freight train was due, and <br />owing to the bridge being the low point of a sag in the roadbed and (to) the 11igh speed of <br />the train, the engine and most of the cars plunged into a swirling torrent of water before <br />the engineer realized the s~uation, The engineer, fireman, and brakeman went down w~h <br /> <br />Colorado Flood <br />Hydrology Manual <br /> <br />4.21 <br /> <br />fFAFT <br />