Lower Colorado River Operations Schedule
Releases from Davis and Parker dams will vary from about 8,000 cubic feet per second
(cfs) to 22,000 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 27 14000 448.3 19200 641.3 23900 1102.3
Apr 28 14000 448.4 18500 641.6 23900 1102.0
Apr 29 13000 448.5 18500 642.0 23900 1101.7
Apr 30 11000 448.9 18000 642.4 23900 1101.4
May 1 13500 448.8 18000 642.4 19000 1101.2
May 2 15000 448.7 18000 642.0 12100 1101.2
May 3 14000 448.6 18000 641.6 13100 1101.1
Average 13500 18300 20000
May 4 to
May 10 13100 448.4 17300 640.8 16400 1100.1
May 11 to
May 17 11600 448.4 16000 640.8 16400 1099.0
Current Lake Powell storage is 12,722 thousand acre-feet (KAF) (52 percent of
capacity). Lake Mead storage is 11,776 KAF (46 percent of capacity). Total
system storage is 31,857 KAF (54 percent of capacity). Lake Powell elevation
is 3609.92 feet.
The projected 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 743 cfs near the Yuma Fourth
Avenue Bridge and 2,900 cfs at the Northerly International Boundary. The
average release from Painted Rock Dam was 0 cfs and Alamo Dam was 53 cfs. The
Morelos Dam diversions for the week of 27-Apr-2009 are expected to be 2,233 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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