09/09 PROJECTED LOWER COLORADO RIVER OPERATIONS SCHEDULE
Water Flow Reports


Colorado River



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PROJECTED LOWER COLORADO RIVER OPERATIONS SCHEDULE

Releases from Davis and Parker dams will vary from about 8,000 cfs to 22,000 cfs during a 24-hour period. River levels will vary during the 24-hour periods with the higher levels coinciding with periods of peak hydroelectric power generation. Levels below the dams are usually highest during the afternoon and early evening. Average daily releases may vary in response to changing conditions.

Average daily releases and midnight lake elevations for the week, as well as anticipated average for the following 2 weeks, are scheduled as follows:

Date Parker Dam Average Releases (cfs)
Lake Havasu Elev.
(ft)
Davis Dam Average Release (cfs) Lake Mohave Elev.
(ft)
Hoover Dam Average Release (cfs) Lake Mead Elev.
(ft)
Glen Cyn Dam Average Release
(cfs)
Sep 9 11,400 447.3 14,000 642.5 14,100 1155.8 8,100
Sep 10 11,400 447.3 14,000 642.4 14,100 1155.7 8,100
Sep 11 10,200 447.4 13,400 642.5 14,100 1155.5 8,100
Sep 12 9,600 447.5 13,400 642.5 14,100 1155.4 8,100
Sep 13 11,400 447.4 13,000 642.5 14,100 1155.3 8,100
Sep 14 11,400 447.3 12,200 642.4 11,200

1155.2

8,100
Sep 15 11,400 447.1 12,200 642.2 9,900

1155.2

8,100
Average 11,000 - 13,200 - 13,640 - 8,100
Sep 16 to Sep 22 8,900 447.2 11,800 642.5 13,100 1154.5 8,100
Sep 23 to Sep 29 8,600 447.3 11,800 642.8 12,600 1153.9 8,100

Current Lake Powell storage is 14,513 thousand acre-feet (KAF) (60 percent of capacity). Lake Mead storage is 17,175 KAF (66 percent of capacity). Total system storage is 38,214 KAF (64 percent of capacity). Lake Powell elevation is 3626.94 feet.

The Observed 2002 April - July unregulated inflow into Lake Powell is 1.115 million acre-feet, or 14 percent of average.

Yesterday, the average Colorado River flows were 1,220 cfs near the Yuma Fourth Avenue Bridge and 1,370 cfs at the Northerly International Boundary. The average release from Painted Rock Dam was 0 cfs and Alamo Dam was 25 cfs. The Morelos Dam diversions for the week of September 9, 2002 are expected to be 1,550 cfs.

All RIVER USERS should remember that fluctuating river flows may conceal or create natural hazards such as moving sandbars, gravel bars, unstable riverbanks, floating or submerged debris, or other unfamiliar obstacles. Caution should be be exercised while using the river between Davis Dam and the Mexican Border at San Luis, Arizona.

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