Lower Colorado River Operations Schedule
Releases from Davis and Parker dams will vary from about 4,500 cubic feet per second
(cfs) to 24,000 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)
---- ----- ---- ----- ---- ----- ----
Aug 25 11500 446.9 13500 640.5 19000 1105.3
Aug 26 11200 447.0 14500 640.8 19000 1105.2
Aug 27 11000 447.1 14500 641.1 19000 1105.1
Aug 28 9000 447.5 14500 641.4 19100 1105.0
Aug 29 11000 447.6 14500 641.7 19100 1104.9
Aug 30 11000 447.8 14500 641.9 17200 1104.9
Aug 31 11000 448.0 14500 642.0 17200 1104.8
Average 10800 14400 18500
Sep 1 to
Sep 7 9400 448.2 13200 641.2 12000 1104.9
Sep 8 to
Sep 14 9500 447.8 13200 640.4 12000 1104.9
Current Lake Powell storage is 14,952 thousand acre-feet (KAF) (61 percent of
capacity). Lake Mead storage is 11,997 KAF (46 percent of capacity). Total
system storage is 34,689 KAF (58 percent of capacity). Lake Powell elevation
is 3630.88 feet.
The observed April-July unregulated inflow to the Colorado River was 8.844
million acre-feet or 111 percent of average.
Yesterday, the average Colorado River flows were 1,100 cfs near the Yuma Fourth
Avenue Bridge and 1,292 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 25-Aug-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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