Lower Colorado River Operations Schedule
Releases from Davis and Parker dams will vary from about 8,000 cubic feet per second
(cfs) to 22,000 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 Glen Cyn
Dam Lake Dam Lake Dam Lake Dam
Average Havasu Average Mohave Average Mead Average
Release Elev. Release Elev. Release Elev. Release
Date (cfs) (ft) (cfs) (ft) (cfs) (ft) (cfs)
---- ----- ---- ----- ---- ----- ---- -----
Jul 31 11000 448.6 15100 643.4 18100 1126.2 13400
Aug 1 12000 448.6 11200 643.4 11800 1126.2 13400
Aug 2 12000 448.5 11200 643.4 11800 1126.2 13400
Aug 3 9500 448.4 11200 643.4 11800 1126.2 13400
Aug 4 12000 448.1 11200 643.4 11800 1126.2 13400
Aug 5 12000 447.8 11200 643.3 10100 1126.3 13400
Aug 6 12000 447.5 11600 643.2 10100 1126.3 13400
Average 11500 11800 12200 13400
Aug 7 to
Aug 13 10500 446.9 12000 643.1 12400 1126.4 13400
Aug 14 to
Aug 20 10500 447.7 14000 642.3 13000 1126.4 13400
Current Lake Powell storage is 12,481 thousand acre-feet (KAF) (51 percent of
capacity). Lake Mead storage is 14,003 KAF (54 percent of capacity). Total
system storage is 34530 KAF (58 percent of capacity). Lake Powell elevation
is 3607.51 feet.
The Projected April-July forecast for the Colorado River is 5.3 million acre-
feet or 67 percent of average.
Yesterday, the average Colorado River flows were 600 cfs near the Yuma Fourth
Avenue Bridge and 1,613 cfs at the Northerly International Boundary. The
average release from Painted Rock Dam was 1 cfs and Alamo Dam was 49 cfs. The
Morelos Dam diversions for the week of 31-Jul-2006 are expected to be 1,610 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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