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<br />n <br /> <br />Page No. <br />02/14/91 <br /> <br />Flood <br />Date Source <br /> <br />** YEAR = 1990 <br />OS/29/90 Thunderstorm <br />07/05/90 Thunderstorm <br /> <br />07/09/90 Rain <br /> <br />07/09/90 Rain <br /> <br />07/20/90 Rain <br /> <br />07/20/90 Rain <br /> <br />07/20/90 Rain <br /> <br />07/24/90 Rain <br /> <br />Colorado Water Conservation Board <br />Floodplain Management Section <br /> <br />CHRONOLOGY OF FLOODS IN COLORADO <br /> <br />Community and/or <br />Stream Name . Location <br /> <br />Local Drainage <br /> <br />Denver <br /> <br />(see memo) <br /> <br />Little Dry Creek South Denver <br /> <br />South of Brighton <br /> <br />Local Drainage <br /> <br />Denver <br /> <br />Unknown Drainage Ordway <br />Inlet <br /> <br />Dry Creek <br /> <br />Local Drainage <br /> <br />North Fork of <br />Long Creek <br /> <br />Littleton <br /> <br />Southglenn in <br />Denver <br /> <br />Near Trinidad <br /> <br />Damages <br /> <br />Street flooding eecured. Twisters were <br />reported. <br /> <br />ApproximatelY 1.5 inches of rain fell over <br />Adams County flooding feiIda. Water 4 inches <br />deep flowed across a 40 foot area of highway <br />79 for"3 to 4 hours. At the time of flooding <br />there were no culverts or drainage ditches in <br />the area. As of February 1991 construction <br />of ditches were underway. <br />A storm moving northeasterly over Stapleton <br />International Airport dropped 1.34 inches of <br />rain in 1.5 hours. 0.60 inches fell in the <br />first 15 minutes. High water reached 10 feet <br />in some underpasses. At 38th and Wynkoop a <br />13.5 foot overpass still had 7 feet of water <br />under it one hour after the storm. The <br />flooding seemed to have been caused by <br />insufficient drainage on the highways and <br />roads. <br />Over 2 inches of rain were reported to have <br />fallen. A clogged drainage inlet added"to <br />the problem. Some area of the town were <br />flooded including the town park and a few <br />buisnesses reported up to 3 inches of water <br />in the buildings. <br />1.5 inches of rain fell in 30 minutes in <br />Littleton ausing dry creek to flood its <br />banks. Damage included curbsides, sidewalks <br />and popped manhole covers. The flooding was <br />at its peak between 3 and 3:30pm. Flood <br />water depths were estimated between 2.5 and <br />3.0 feet. <br />2.5 feet of fast maoving water flooded the <br />streets in the area of Panama Drive to <br />Southglenn after severe rains fell above <br />Li ttleton . <br />A bridge was washed out in Las Animas County <br />near Trinidad when and unrecorded amunt of <br />rain fell causing flooding of the North Fork <br />of Long Creek. For a little over an hour a <br />foot of water flowed over a 200 foot stretch <br />of roadway. <br /> <br />References <br /> <br />Denver Post, <br />5/31/90 <br />Rocky Mountain <br />News, 07/06/90 <br />Department of <br />Highways Flood <br />Summary, 07/10/90 <br /> <br />Denver Post, <br />07/10/90 <br />Rocky Mountain <br />News, 07/10/90 <br /> <br />The Ordway. News <br />Era, 07/26/90 <br /> <br />Denver Post, <br />07/21/90 <br /> <br />Denver Post, <br />07/21/90 <br /> <br />Department of <br />Highways Flood <br />Summary, 08/13/90 <br />