Lower Colorado River Operations Schedule
Releases from Davis and Parker dams will vary from about 4,500
cubic feet per second (cfs) to 24,000 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 averages for the following 2 weeks, are
scheduled as follows:
Parker Davis Hoover
Dam Lake Dam Lake Dam Lake
Average Havasu Average Mohave Average Mead
Release Elev. Release Elev. Release Elev.
Date (cfs) (ft) (cfs) (ft) (cfs) (ft)
---- ----- ---- ----- ---- ----- ----
Aug 1 11500 448.1 13800 643.1 13300 1107.2
Aug 2 11500 448.1 14000 643.0 13300 1107.5
Aug 3 11000 448.1 14000 642.9 13300 1107.7
Aug 4 10000 448.2 14000 642.8 13300 1107.9
Aug 5 11500 448.2 14000 642.8 13300 1108.1
Aug 6 11500 448.1 14000 642.7 13300 1108.3
Aug 7 11500 448.1 14000 642.6 13300 1108.5
Average 11200 14000 13300
Aug 8 to
Aug 14 10500 448.1 13300 642.4 13300 1110.0
Aug 15 to
Aug 21 10100 448.1 13100 642.3 13300 1111.5
Current Lake Powell storage is 18,596 thousand acre-feet (KAF)
(76 percent of capacity).
Lake Mead storage is 12,084 KAF (47 percent of capacity).
Total system storage is 39,201 KAF (66 percent of capacity).
Lake Powell elevation is 3,660.79 feet.
The April-July forecast for the Colorado River is 12.6 million
acre-feet or 159 percent of average.
Yesterday, the average Colorado River flows were 740 cfs near
the Yuma Fourth Avenue Bridge and 1,773 cfs at the Northerly
International Boundary. The average release from Painted Rock
Dam was 0 cfs and Alamo Dam was 50 cfs. The Morelos Dam
diversions for the week of 01-Aug-2011 are expected to be
1,437 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 exercised while using the river between
Davis Dam and the Mexican Border at San Luis, Arizona.
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