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FLOOD01863
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Last modified
1/29/2010 10:15:21 AM
Creation date
10/4/2006 10:25:42 PM
Metadata
Fields
Template:
Floodplain Documents
County
Morgan
Logan
Sedgwick
Community
Northeastern Colorado
Stream Name
South Platte River
Title
Report on the Floods of June 1965
Date
1/1/1967
Prepared For
State of Colorado
Prepared By
US Army Corps of Engineers
Floodplain - Doc Type
Flood Documentation Report
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<br />{; <br /> <br />;, <br />} <br /> <br />I! <br />t, <br />~: <br />, <br />!i <br /> <br />Kiowa Creek project is one of the original pilot watershed projects <br />constructed by the Soil Conservation Service in the United States. <br />The project consists of 65 floodwater retention structures located <br />within the 118 square mile drainage area. Two other watershed projects <br />have been constructed in the upper portions of the Cherry Creek basin. <br />The West Cherry Creek project consists ,of 16 floodwater retention <br />structures in a watershed area of 49 square miles, and the Franktown- <br />Parker project consists of 25 floodwater retention structures in,s <br />watershed area of 276 square miles., <br /> <br />c. Bureau of Reclamation. The Bureau of Reclamation has 'con- <br />structed no improvements in the portions of the South Platte River basin <br />affected by. the June 1965 'floods. The, Bureau of Reclamation's Colorado- <br />Big Thompson transmountain diversion project imports water from the <br />Colorado River basin on the western slope of the Rocky Mountains to <br />the Big Thompson River basin, a tributary of.the South,Plstte River <br />basin. The project provides water for irrigation and municipal ,use. <br /> <br />" <br />, <br /> <br />d. Englewood Dam. Englewood Dam was 'constructed as a WPA project <br />during the 1930's. It is located on Little Dry Creek approximately 9 <br />channel miles upstream from Englewood, Colorado. The project serves <br />as a flood detention dam for control of about 11 square miles of the <br />27 square mile drainage area of the Little Dry Creek basin. Storage <br />capacity is approximately 1,485 acre-feet at spillway crest. The <br />project suffers from, inadequate maintenance because ,of disputed <br />ownership of project lands. <br /> <br />15. NON-FEDERAL IMPROVEMENTS' <br /> <br />a. South Platte River at Denver.' In 1921, the city of Denver <br />constructed channel improvements on about 11.5 miles of,the South <br />Platte River at Denver. The discharge capacity of ,this improved reach, <br />of channel ranges from approximately 9,500 cubic ,feet per second <br />to 29,000 cubic feet per second. The perched condition, of the channel <br />limits the effective capacity of the channel to 9,500 cubic feet per <br />second. <br /> <br />b. Cherry Creek at Denver. Approximately: 7 . 7 miles of improved <br />channel on Cherry Creek at Denver were constructed in the 1920's by <br />the city of Denver., The original design capacity was 10,000 cubic <br />feet per second. The present effective capacity is approximately <br />4,700 cubic feet per second. However, concrete flood walls which are <br />part of the channel improvement have been undermined by erosion in <br />many locations ; for this reason, high discharges could cause collapse <br />of the flood walls. <br /> <br />9 <br />
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