|
<br />Flood of 1938, Heavy rainfall during the period from 30 August to 4 September over
<br />much of the upper South Platte River basin caused flooding on many of the mountain
<br />streams tributary to the South Platte as well as the South Platte ttself. Relatively minor
<br />flooding was reported on the South Plattl3 River.
<br />
<br />Flood of 1942, The flood of April.May on the South Platte River and tributary streams
<br />was the result of snowme~ runoff being augmented by heavy precipttation during the last
<br />half of April and the first part of May, The mountain area above Chatfield Dam produced
<br />most of the volume that passed the Denver gage and, although peak values during this
<br />flood were not high in comparison to other floods, the volume of runoff was excessive, wtth
<br />a 30.day runoff of 265,000 acre.feet flowing past the Denver gage and a 60-day runoff of
<br />395,000 acre.feet. Four separate flood crests occurred at the Denver gage wtth the
<br />maximum peak of 10,200 cubic feet per second recorded on 25 April. Peak flows in
<br />excess of 8,500 cubic feet per second were, however, recorded on 19, 23 and 30 April.
<br />The minimum flow at Denver during the 24 day period.from 19 April to 13 May was about
<br />4,500 cubic feet per second,
<br />
<br />Flood of 1948. Heavy rainfall over a large area east of Denver caused flooding in late
<br />May and early June on the South Platte River between Sand Creek and Fort Lupton,
<br />Several approaches to county bridges were washed out as well as flooding of some
<br />agricultural land,
<br />
<br />Flood of 1949, Heavy rainfall over a me~ing snowpack caused flooding on the South
<br />Platte River from mid.May to late June from Littleton, Colorado to North Platte, Nebraska,
<br />Considerable damage was incurred by homes, farm buildings, and crops along that reach
<br />of the river,
<br />
<br />Flood of 1957, Intense local rains OVl3r the Sand Creek basin caused flooding on the
<br />South Platte River for a distance downstmam from Sand Creek, High rural damages were
<br />incurred in some locations,
<br />
<br />Flood of 1965, Heavy to torrential rainfall over large portions of the South Platte River
<br />basin created extensive flooding along the South Platte River. Heavy rainfall occurred over
<br />portions of the northern sections of the South Platte River basin on the 14th and 15th of
<br />June, As the storm system moved southward, torrential rainfall of the period extended
<br />over some 3,000 square miles of the South Platte 'River basin, including the 1~lum Creek,
<br />Cherry Creek, and Sand and Toll Gate Creek watersheds in the Denver region, and the
<br />Bijou Creek, Kiowa Creek, Commanche Creek, Bader Creek, and Beaver Creek
<br />watersheds to the east, Flooding occurred on the South Platte River from Plum Creek
<br />downstream to North Platte, Nebraska as a result of this rainfall.
<br />
<br />Flood of 1969, Heavy rains during this period started on the afternoon of 4 May and
<br />continued wtth only intermittent breaks until 8 May, The storm covered an area along and
<br />near the eastern slopes of the mountains and extended into portions of the high plains,
<br />The heaviest amounts were centered 25 miles southwest of Denver and elctended in a
<br />band along the foothills northward to near Estes Park, The weather station at Morrison
<br />reported a total storm rainfall of 11.27 inches and a maximum daily amount of 5.77 inches,
<br />
<br />Colorado Flood
<br />Hydrology Manual
<br />
<br />4,3
<br />
<br />fFIFT
<br />
|