Lower Colorado River Operations Schedule
Releases from Davis and Parker dams will vary from about 1,800 cubic feet per second
(cfs) to 14,700 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 14 6000 446.8 9800 637.2 10100 1094.3
Dec 15 6000 446.8 9800 637.2 10100 1094.3
Dec 16 6000 446.7 8000 637.3 10100 1094.4
Dec 17 5000 446.7 8000 637.4 10100 1094.5
Dec 18 6000 446.5 8000 637.6 10100 1094.6
Dec 19 6000 446.3 9100 637.4 7300 1094.7
Dec 20 6000 446.1 9100 637.3 7600 1094.9
Average 5900 8800 9300
Dec 21 to
Dec 27 4000 446.7 8800 637.9 10300 1095.4
Dec 28 to
Jan 3 4100 447.3 9200 638.7 11100 1095.9
As of December 9, 2009, Lake Powell storage was 14,834 thousand acre-feet (KAF)
(61 percent of capacity). Lake Mead storage was 10,939 KAF (42 percent of capacity).
Total system storage was 33,363 KAF (56 percent of capacity). Lake Powell elevation
was 3629.83 feet.
Yesterday, the average Colorado River flows were 1,697 cfs near the Yuma Fourth
Avenue Bridge and 2,670 cfs at the Northerly International Boundary. The average
release from Painted Rock Dam was 0 cfs and Alamo Dam was 33 cfs. The Morelos Dam
diversions for the week of 14-Dec-2009 are expected to be 1,820 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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