Lower Colorado River Operations Schedule
Releases from Davis and Parker dams will vary from about 4,600 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 23 13000 446.4 17600 640.8 21300 1109.0
Mar 24 13000 446.5 17500 641.0 21300 1108.8
Mar 25 13000 446.5 17500 641.3 21300 1108.6
Mar 26 12000 446.6 17500 641.5 21300 1108.4
Mar 27 13000 446.6 17500 641.8 21300 1108.1
Mar 28 13000 446.6 17500 641.6 14800 1108.1
Mar 29 13000 446.7 17500 641.4 16100 1108.0
Average 12900 17500 19600
Mar 30 to
Apr 5 13400 446.9 18700 641.8 20000 1106.7
Apr 6 to
Apr 12 13800 447.4 19000 642.1 20000 1105.7
Current Lake Powell storage is 12,838 thousand acre-feet (KAF) (53 percent of
capacity). Lake Mead storage is 12,374 KAF (48 percent of capacity). Total
system storage is 32,424 KAF (55 percent of capacity). Lake Powell elevation
is 3,611.07 feet.
The projected April-July forecast for the Colorado River is 7.0 million acre-feet
or 88 percent of average.
Yesterday, the average Colorado River flows were 784 cfs near the Yuma Fourth
Avenue Bridge and 3,224 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 23-Mar-2009 are expected to be 3,250 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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