Lower Colorado River Operations Schedule
Releases from Davis and Parker dams will vary from about 9,500 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 Glen Cyn
Dam Lake Dam Lake Dam Lake Dam
Average Havasu Average Mohave Average Mead Average
Release Elev. Release Elev. Release Elev. Release
Date (cfs) (ft) (cfs) (ft) (cfs) (ft) (cfs)
---- ----- ---- ----- ---- ----- ---- -----
Apr 21 14000 446.5 17900 640.9 20500 1111.8 10100
Apr 22 14000 446.4 18200 641.1 20500 1111.6 10100
Apr 23 13000 446.5 18200 641.2 20600 1111.4 10100
Apr 24 12000 446.7 18200 641.3 20600 1111.2 10100
Apr 25 13000 446.8 18200 641.5 20600 1111.0 10100
Apr 26 13000 446.9 18200 641.5 18800 1110.8 10100
Apr 27 14000 446.9 18200 641.5 18800 1110.6 10100
Average 13300 18200 20100 10100
Apr 28 to
May 4 12700 447.3 17800 641.9 19200 1109.4 11800
May 5 to
May 11 12100 447.8 17400 642.2 18400 1108.6 13000
Current Lake Powell storage is 10,939 thousand acre-feet (KAF) (45 percent of
capacity). Lake Mead storage is 12,645 KAF (49 percent of capacity). Total
system storage is 30,774 KAF (52 percent of capacity). Lake Powell elevation
is 3,591.30 feet.
The Projected April-July forecast for the Colorado River is 9.7 million acre-
feet or 122 percent of average.
Yesterday, the average Colorado River flows were 658 cfs near the Yuma Fourth
Avenue Bridge and 3,440 cfs at the Northerly International Boundary. The
average release from Painted Rock Dam was 3 cfs and Alamo Dam was 36 cfs. The
Morelos Dam diversions for the week of 21-Apr-2008 are expected to be 2,747 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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