Lower Colorado River Operations Schedule
Releases from Davis and Parker dams will vary from about 4,300 cubic feet per second
(cfs) to 23,000 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)
---- ----- ---- ----- ---- ----- ----
Jun 22 10500 448.7 12500 642.4 14700 1095.4
Jun 23 11000 448.5 13500 642.4 14700 1095.4
Jun 24 9500 448.6 13000 642.5 14700 1095.3
Jun 25 8500 448.7 13500 642.6 14700 1095.2
Jun 26 9500 448.8 13500 642.6 14700 1095.1
Jun 27 10500 448.7 13500 642.2 7500 1095.2
Jun 28 10000 448.7 13500 641.8 8600 1095.3
Average 9900 13300 12800
Jun 29 to
Jul 5 11900 448.1 14400 641.5 14300 1094.9
Jul 6 to
Jul 12 11900 448.0 14800 641.2 14700 1094.5
Current Lake Powell storage is 15,649 thousand acre-feet (KAF) (64 percent of
capacity). Lake Mead storage is 11,090 KAF (43 percent of capacity). Total
system storage is 34,923 KAF (59 percent of capacity). Lake Powell elevation
is 3636.98 feet.
The projected April-July forecast for the Colorado River is 7.1 million acre-
feet or 90 percent of average.
Yesterday, the average Colorado River flows were 741 cfs near the Yuma Fourth
Avenue Bridge and 1,677 cfs at the Northerly International Boundary. The
average release from Painted Rock Dam was 0 cfs and Alamo Dam was 46 cfs. The
Morelos Dam diversions for the week of 22-Jun-2009 are expected to be 1,700 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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