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)
---- ----- ---- ----- ---- ----- ----
Mar 29 13000 446.7 17600 642.4 16900 1100.8
Mar 30 13000 446.8 17600 642.3 16900 1100.6
Mar 31 13000 447.0 17600 642.2 16900 1100.5
Apr 1 12000 447.2 17600 642.2 17300 1100.3
Apr 2 12000 447.4 17600 642.1 17300 1100.2
Apr 3 12500 447.5 17600 641.9 14700 1100.1
Apr 4 12500 447.7 16600 641.8 14900 1100.0
Average 12600 17500 16400
Apr 5 to
Apr 11 12200 448.2 16500 641.4 16000 1099.2
Apr 12 to
Apr 18 12500 448.4 15600 641.6 16000 1098.3
Current Lake Powell storage is 13,735 thousand acre-feet (KAF) (56 percent of
capacity). Lake Mead storage is 11,596 KAF (45 percent of capacity). Total
system storage is 32,791 KAF (55 percent of capacity). Lake Powell elevation
is 3,619.73 feet.
The April-July forecast for the Colorado River is 5.3 million acre-feet or
67 percent of average.
Yesterday, the average Colorado River flows were 640 cfs near the Yuma Fourth
Avenue Bridge and 4,026 cfs at the Northerly International Boundary. The
average release from Painted Rock Dam was 2,665 cfs and Alamo Dam was 464 cfs. The
Morelos Dam diversions for the week of 29-Mar-2010 are expected to be 3,507 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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