07/07 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)
Jul 7 11,500 449.0 13,700 642.5 16,000

1143.1

14,600
Jul 8 15,000 448.6 13,700 642.6 16,000 1143.1 14,600
Jul 9 10,500 448.7 13,700 642.7 16,000 1143.1 14,600
Jul 10 8,500 449.0 14,700 642.8 16,000 1143.1 14,600
Jul 11 13,400 448.9 14,700 642.9 16,000 1143.0 14,600
Jul 12 12,500 448.9 14,700 642.7 12,400 1143.1 14,600
Jul 13 12,500 448.9 14,700 642.4 11,000 1143.1 14,600
Average 12,000 - 14,300 - 14,800 - 14,600
Jul 14 to Jul 20 12,700 448.8 14,800 642.2 14,900 1143.1 14,600
Jul 21 to Jul 27 12,700 448.6 14,600 642.1 14,900 1143.1 14,600

Current Lake Powell storage is 13,358 thousand acre-feet (KAF) (55 percent of capacity). Lake Mead storage is 15,745 KAF (61 percent of capacity). Total system storage is 35,810 KAF (60 percent of capacity). Lake Powell elevation is 3615.94 feet.

The projected 2003 April - July unregulated inflow into Lake Powell is 4.203 million acre-feet, or 53 percent of average.

Yesterday, the average Colorado River flows were 735 cfs near the Yuma Fourth Avenue Bridge and 1,840 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 July 7, 2003 are expected to be 2,010 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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