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WSP11762
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Last modified
1/26/2010 3:18:47 PM
Creation date
10/12/2006 5:09:22 AM
Metadata
Fields
Template:
Water Supply Protection
File Number
8443.600
Description
Narrows Unit - Studies
State
CO
Basin
South Platte
Water Division
1
Date
7/25/1974
Author
Donald Miller
Title
Inflow Design Flood Study - Narrows Damsite
Water Supply Pro - Doc Type
Report/Study
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<br /> <br />largest excesses above 5,000 cfs. Sublette gage ran from 1926 . <br /> <br />through 1955; however, records are missing from April 1942 through <br /> <br />September 1943, Therefore, cDmparison of 1942 discharges in April, <br /> <br />May, and June at Kersey and WeldDna gages could not be made. <br /> <br />Weldona gage began in 1953; 1973 preliminary discharge records indi- <br /> <br /> <br />cate 138,700 acre-fDot loss in May between Kersey and Weldona gages <br /> <br />and 168,700 acre-foot loss in June. Losses in excess Df 100,000 acre- <br /> <br />feet occurred in May 1958, June 1961, June 1965, May and June 1969. <br /> <br />The maximum 31-day excessKK above 5,000 cfs at Kersey gage was <br /> <br />424,820 acre-feet which Dccurred from April 21 through May 21, 1942. <br /> <br />In absence of 1942 record at Sublette gage, losses between Kersey gage <br /> <br />and Narrows Dam were estimated by using.the 1973 discharges at Kersey <br /> <br />and We1dona gages. The 31-day losses were computed asfu110ws: <br /> <br /> Excesses above 5,000 cfs <br />Station Period CFS-days Acre-feet <br />Kersey 5/7 to 6/6/73 . 366,540 727,021 <br />We1dona 5/8 to 6/7/73 293,080 581,315 <br />Est. Losses 145,706 <br /> <br />26 <br /> <br />. ......~--,.." ',--"''''..-j<. <br /> <br />-.~~ <br />~.".....~...---...~...... <br /> <br />. <br />
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