Lower Colorado River Operations Schedule
Releases from Davis and Parker dams will vary from about 4,500 cubic feet per second
(cfs) to 23,000 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)
---- ----- ---- ----- ---- ----- ----
Sep 22 9000 448.4 11900 641.3 11500 1105.2
Sep 23 9000 448.4 11900 641.2 11500 1105.2
Sep 24 9000 448.3 11900 641.2 11500 1105.2
Sep 25 8000 448.3 11900 641.1 11500 1105.2
Sep 26 8500 448.2 11800 641.1 11500 1105.2
Sep 27 9000 448.0 11800 640.9 9700 1105.3
Sep 28 9000 447.8 11800 640.7 9700 1105.3
Average 8800 11900 11000
Sep 29 to
Oct 5 8800 447.2 11300 638.8 7800 1105.9
Oct 6 to
Oct 12 8300 446.9 11100 636.9 7400 1106.6
Current Lake Powell storage is 14,628 thousand acre-feet (KAF) (60 percent of
capacity). Lake Mead storage is 11,958 KAF (46 percent of capacity). Total
system storage is 34,289 KAF (58 percent of capacity). Lake Powell elevation
is 3,627.98 feet.
The Projected April-July forecast for the Colorado River is 8.843 million acre-
feet or 111 percent of average.
Yesterday, the average Colorado River flows were 1,090 cfs near the Yuma Fourth
Avenue Bridge and 1,338 cfs at the Northerly International Boundary. The
average release from Painted Rock Dam was 0 cfs and Alamo Dam was 48 cfs. The
Morelos Dam diversions for the week of 22-Sep-2008 are expected to be 1,501 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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