Lower Colorado River Operations Schedule
Releases from Davis and Parker dams will vary from about 1,900 cubic feet per second
(cfs) to 14,500 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 7 6300 447.2 9500 636.1 11100 1093.8
Dec 8 6500 447.1 9500 636.2 11100 1093.9
Dec 9 6500 447.0 9500 636.3 11100 1094.0
Dec 10 4500 447.1 9500 636.4 11100 1094.0
Dec 11 6500 447.0 9500 636.5 11100 1094.1
Dec 12 6500 446.9 8900 636.4 8300 1094.2
Dec 13 6500 446.7 8900 636.3 8600 1094.3
Average 6200 9300 10300
Dec 14 to
Dec 20 5100 446.4 8800 637.0 10300 1094.8
Dec 21 to
Dec 27 4000 446.9 8800 637.7 10300 1095.4
Current Lake Powell storage is 14,928 thousand acre-feet (KAF) (61 percent of
capacity). Lake Mead storage is 10,915 KAF (42 percent of capacity). Total
system storage is 33,445 KAF (56 percent of capacity). Lake Powell elevation
is 3,630.67 feet.
Yesterday, the average Colorado River flows were 543 cfs near the Yuma Fourth
Avenue Bridge and 1,872 cfs at the Northerly International Boundary. The
average release from Painted Rock Dam was 0 cfs and Alamo Dam was 34 cfs. The
Morelos Dam diversions for the week of 07-Dec-2009 are expected to be 1,890 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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