Lower Colorado River Operations Schedule
Releases from Davis and Parker dams will vary from about 4,600
cubic feet per second (cfs) to 25,000 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)
---- ----- ---- ----- ---- ----- ----
Jul 4 13500 447.4 16600 641.7 16900 1103.0
Jul 5 13400 447.5 15400 641.8 16900 1103.1
Jul 6 11500 447.6 15400 641.8 16900 1103.3
Jul 7 10300 447.8 15400 641.9 16900 1103.4
Jul 8 14200 447.6 15400 642.0 16900 1103.5
Jul 9 13200 447.5 15400 641.9 14800 1103.7
Jul 10 13600 447.4 15400 641.8 14200 1103.9
Average 12800 15600 16200
Jul 11 to
Jul 17 12100 447.5 15400 641.9 16000 1104.9
Jul 18 to
Jul 24 11900 447.7 15300 642.0 16000 1105.9
Current Lake Powell storage is 17,085 thousand acre-feet (KAF)
(70 percent of capacity).
Lake Mead storage is 11,705 KAF (45 percent of capacity).
Total system storage is 36,864 KAF (62 percent of capacity).
Lake Powell elevation is 3,648.95 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 742 cfs near the
Yuma Fourth Avenue Bridge and 1,768 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 04-Jul-2011 are expected to be 1,860 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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