12/09 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)
Dec 9 5,400 447.1 8,800 637.4 11,200 1153.0 9,800
Dec 10 5,700 447.0 8,800 637.7 12,900 1153.0 9,800
Dec 11 5,100 447.0 8,800 638.1 14,000 1152.9 9,800
Dec 12 5,100 447.1 8,800 638.4 14,000 1152.8 9,800
Dec 13 5,500 447.0 8,800 638.7 13,000 1152.8 9,800
Dec 14 5,500 447.0 8,900 638.9 11,800 1152.8 9,800
Dec 15 5,500 446.9 8,600 639.0 10,400 1152.7 9,800
Average 5,400 - 8,800 - 12,500 - 9,800
Dec 16 to Dec 23 5,600 446.4 8,600 640.6 12,220 1152.5 9,800
Dec 24 to Dec 29 4,600 446.7 8,600 642.3 12,200 1152.2 9,800

Current Lake Powell storage is 14,056 thousand acre-feet (KAF) (58 percent of capacity). Lake Mead storage is 16,834 KAF (65 percent of capacity). Total system storage is 37,095 KAF (65 percent of capacity). Lake Powell elevation is 3622.74 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 1,569 cfs near the Yuma Fourth Avenue Bridge and 1,831 cfs at the Northerly International Boundary. The average release from Painted Rock Dam was 10 cfs and Alamo Dam was 10 cfs. The Morelos Dam diversions for the week of December 09, 2002 are expected to be 2,200 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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