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WSP05393
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Last modified
1/26/2010 2:18:10 PM
Creation date
10/12/2006 12:59:39 AM
Metadata
Fields
Template:
Water Supply Protection
File Number
8510.100.40
Description
Rio Grande Compact Commission
Basin
Rio Grande
Water Division
3
Date
1/1/1981
Title
Report of the Civil Works Activities of the Albuquerque District Corps of Engineers in the Rio Grande Basin During Calendar Year 1980
Water Supply Pro - Doc Type
Report/Study
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<br />(0 <br />LI? <br />ID <br />rl <br />W <br />C-i <br /> <br />. <br /> <br />. <br /> <br />b. Cochiti Lake. Storage from spring runoff began in early May and <br /> <br />continued through mid-June. Peak inflow was 7,930 c.f.s. on 25 May. Maximum <br /> <br /> <br />outflow was 6,997 c.f.s. on 27 May. The increase in channel capacity through <br /> <br /> <br />the middle valley, from 5,000 to 6,000 c.f.s., during 1979 spring runoff <br /> <br /> <br />greatly reduced the storage required at Cochiti. Maximum storage of 71,884, <br /> <br /> <br />acre-feet (elevation 5339.99 ft.) was attained on 27 May. Flood storage was <br /> <br /> <br />evacuated by 1 July. <br /> <br />Flow through the middle valley was around 6,000 c.f.s. during May and June, <br /> <br /> <br />The maximum at Albuquerque was 7,150 c.f.s. on 14 June. The unregulated peak <br /> <br /> <br />was estimated at 10,500 c.Ls. and would have occured on 24 Nay 1980. <br /> <br />There were no spring or summer rain floods that required flood regulation. <br /> <br />c. Jemez Canyon Dam. Peak inflow to Jemez Canyon Dam of 990 c.f.s. <br /> <br /> <br />occured on 24 April. Outflow was 500 to 600 c.f.s. through May. Maximum <br /> <br /> <br />outflow of 710 c.f.s. was on 25 May. The sediment retention pool, which was <br /> <br /> <br />established in 1979, has greatly improved the sediment trap efficiency. The <br /> <br /> <br />channel below the dam has scoured to an armored bed. Also, the bar in the <br /> <br /> <br />Rio Grande at the Jemez River confluence has begun to disappear. The stream <br /> <br /> <br />section at the gaging station has stabilized so that a rating can be estab- <br /> <br /> <br />lished for the station. <br /> <br />d. Galisteo Dam. There was no flood operation at Galisteo during 1980. <br /> <br /> <br />The flows that occured during the summer were too small to cause storage. <br /> <br />e. Platoro Reservoir. Platoro was drawn down during April and early May <br /> <br /> <br />from about 30,000 to approximately 14,000 acre-feet (on 10 May) and held <br /> <br /> <br />there through 4 June. The operation diagram indieated that the evacuation <br /> <br /> <br />should have been to about 9,000 acre-feet to provide adequate space for the <br /> <br /> <br />forecasted spring runoff. It was felt that with the increase to 2,500 c.f.s. <br /> <br /> <br />control at the Mogote Gage, the 14,000 level was adequate. Due to the large <br /> <br />5 <br />
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