Lower Colorado River Operations Schedule
Releases from Davis and Parker dams will vary from about 6,000 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)
---- ----- ---- ----- ---- ----- ----
Apr 20 12500 448.0 18600 640.6 23800 1104.0
Apr 21 12500 448.1 18600 641.0 23800 1103.7
Apr 22 12500 448.2 19000 641.3 23800 1103.4
Apr 23 12000 448.4 19000 641.6 23800 1103.1
Apr 24 13500 448.4 19000 641.9 23800 1102.8
Apr 25 14000 448.4 19000 641.8 17100 1102.7
Apr 26 13000 448.5 19000 641.7 18100 1102.5
Average 12900 18900 22000
Apr 27 to
May 3 12900 448.7 17500 643.0 20700 1100.9
May 4 to
May 10 11900 448.4 16000 643.0 16400 1099.9
Current Lake Powell storage is 12,700 thousand acre-feet (KAF) (52 percent of
capacity). Lake Mead storage is 11,914 KAF (46 percent of capacity). Total
system storage is 31,904 KAF (54 percent of capacity). Lake Powell elevation
is 3609.70 feet.
The April-July forecast for the Colorado River is 7.5 million acre-feet
or 95 percent of average.
Yesterday, the average Colorado River flows were 836 cfs near the Yuma Fourth
Avenue Bridge and 3,290 cfs at the Northerly International Boundary. The
average release from Painted Rock Dam was 0 cfs and Alamo Dam was 40 cfs. The
Morelos Dam diversions for the week of 20-Apr-2009 are expected to be 2,866 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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