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)
---- ----- ---- ----- ---- ----- ----
Aug 3 10000 447.6 13400 641.3 15600 1094.2
Aug 4 10000 447.5 13400 641.4 15600 1094.2
Aug 5 9500 447.6 13400 641.5 15600 1094.1
Aug 6 8500 447.7 13400 641.7 15600 1094.0
Aug 7 9500 447.7 13400 641.8 15600 1094.0
Aug 8 10000 447.7 12600 641.5 8200 1094.1
Aug 9 10000 447.7 12600 641.2 9400 1094.2
Average 9600 13200 13700
Aug 10 to
Aug 16 10200 447.3 13000 640.8 12600 1094.2
Aug 17 to
Aug 23 9800 447.3 12200 640.8 12600 1094.3
Current Lake Powell storage is 16,145 thousand acre-feet (KAF) (66 percent of
capacity). Lake Mead storage is 10,977 KAF (42 percent of capacity). Total
system storage is 35,518 KAF (60 percent of capacity). Lake Powell elevation
is 3,641.20 feet.
The April-July forecast for the Colorado River is 7.8 million acre-feet or
98 percent of average.
Yesterday, the average Colorado River flows were 606 cfs near the Yuma Fourth
Avenue Bridge and 1,723 cfs at the Northerly International Boundary. The
average release from Painted Rock Dam was 0 cfs and Alamo Dam was 51 cfs. The
Morelos Dam diversions for the week of 03-Aug-2009 are expected to be 1,310 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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