Lower Colorado River Operations Schedule
Releases from Davis and Parker dams will vary from about 8,000 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 13 14000 447.1 18500 640.5 21700 1105.3
Apr 14 14000 447.1 18600 640.7 21700 1105.1
Apr 15 13500 447.1 18600 640.9 21700 1104.9
Apr 16 12000 447.3 18600 641.1 21700 1104.7
Apr 17 14000 447.3 18600 641.3 21700 1104.5
Apr 18 13500 447.3 18600 641.0 15100 1104.5
Apr 19 13000 447.4 18600 640.8 16400 1104.4
Average 13400 18600 20000
Apr 20 to
Apr 26 13600 447.6 18600 641.3 20000 1103.4
Apr 27 to
May 3 12900 448.1 17400 641.6 18500 1102.5
Current Lake Powell storage is 12,728 thousand acre-feet (KAF) (52 percent of
capacity). Lake Mead storage is 12,022 KAF (46 percent of capacity). Total
system storage is 32,010 KAF (54 percent of capacity). Lake Powell elevation
is 3609.98 feet.
The projected April-July forecast for the Colorado River is 7.2 million acre-
feet or 91 percent of average.
Yesterday, the average Colorado River flows were 662 cfs near the Yuma Fourth
Avenue Bridge and 3,452 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 13-Apr-2009 are expected to be 3,170 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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