Lower Colorado River Operations Schedule
Releases from Davis and Parker dams will vary from about 4,500 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)
---- ----- ---- ----- ---- ----- ----
Apr 19 11800 447.6 14400 641.7 16400 1098.9
Apr 20 12400 447.4 14400 641.8 16400 1098.7
Apr 21 11100 447.5 14400 641.9 16400 1098.6
Apr 22 8800 447.7 14400 642.0 16400 1098.5
Apr 23 12000 447.6 14400 642.1 16400 1098.4
Apr 24 11400 447.6 14000 642.1 13800 1098.3
Apr 25 11800 447.6 14000 642.1 14000 1098.2
Average 11300 14300 15700
Apr 26 to
May 2 12000 447.2 14500 642.8 16500 1097.3
May 3 to
May 9 11700 447.1 16600 642.9 17500 1096.1
Current Lake Powell storage is 13,619 thousand acre-feet (KAF) (56 percent of
capacity). Lake Mead storage is 11,429 KAF (44 percent of capacity). Total
system storage is 32,565 KAF (55 percent of capacity). Lake Powell elevation
is 3,618.63 feet.
The April-July forecast for the Colorado River is 5.2 million acre-feet or 66
percent of average.
Yesterday, the average Colorado River flows were 1,590 cfs near the Yuma Fourth Avenue
Bridge and 2,553 cfs at the Northerly International Boundary. The average release from
Painted Rock Dam was 2,630 cfs and Alamo Dam was 50 cfs. The Morelos Dam diversions
for the week of 19-Apr-2010 are expected to be 2,550 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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