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)
---- ----- ---- ----- ---- ----- ----
May 18 11000 448.8 15400 643.3 18500 1098.9
May 19 11000 448.7 15400 643.5 18500 1098.7
May 20 10000 448.8 15400 643.7 18500 1098.6
May 21 9500 448.9 15200 643.8 18500 1098.4
May 22 10000 448.9 15200 644.0 18500 1098.2
May 23 11000 448.9 15200 643.7 11500 1098.1
May 24 11000 448.8 15000 643.5 12600 1098.1
Average 10500 15300 16700
May 25 to
May 31 11100 448.8 15700 643.6 16400 1097.1
Jun 1 to
Jun 7 10900 448.9 14700 643.5 14900 1096.2
Current Lake Powell storage is 13,421 thousand acre-feet (KAF) (55 percent of
capacity). Lake Mead storage is 11,437 KAF (44 percent of capacity). Total
system storage is 32,538 KAF (55 percent of capacity). Lake Powell elevation
is 3,616.74 feet.
The April-July forecast for the Colorado River is 7.1 million acre-feet or
90 percent of average.
Yesterday, the average Colorado River flows were 1,370 cfs near the Yuma Fourth
Avenue Bridge and 1,568 cfs at the Northerly International Boundary. The
average release from Painted Rock Dam was 0 cfs and Alamo Dam was 45 cfs. The
Morelos Dam diversions for the week of 18-May-2009 are expected to be 1,580 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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