Lower Colorado River Operations Schedule
Releases from Davis and Parker dams will vary from about 1,800 cubic feet per second
(cfs) to 14,200 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)
---- ----- ---- ----- ---- ----- ----
Dec 28 4000 447.0 8600 638.2 10800 1096.0
Dec 29 3000 447.2 8600 638.4 10800 1096.1
Dec 30 4000 447.3 8000 638.6 10800 1096.2
Dec 31 3000 447.4 8000 638.7 10800 1096.3
Jan 1 5000 447.2 9400 639.0 13500 1096.3
Jan 2 5000 447.2 9400 639.1 10800 1096.5
Jan 3 5000 447.2 9400 639.2 11000 1096.6
Average 4100 8800 11200
Jan 4 to
Jan 10 4300 447.2 8600 640.9 12300 1097.2
Jan 11 to
Jan 17 6300 447.0 10600 641.6 12300 1097.9
Current Lake Powell storage is 14,574 thousand acre-feet (KAF) (60 percent of
capacity). Lake Mead storage is 11,087 KAF (43 percent of capacity). Total
system storage is 33,217 KAF (56 percent of capacity). Lake Powell elevation
is 3,627.49 feet.
Yesterday, the average Colorado River flows were 504 cfs near the Yuma Fourth
Avenue Bridge and 1,629 cfs at the Northerly International Boundary. The
average release from Painted Rock Dam was 0 cfs and Alamo Dam was 30 cfs. The
Morelos Dam diversions for the week of 28-Dec-2009 are expected to be 1,330 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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