Lower Colorado River Operations Schedule
Releases from Davis and Parker dams will vary from about 4,600 cubic feet per second
(cfs) to 19,000 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 18 12000 446.0 15000 640.4 16800 1105.2
Aug 19 11000 446.0 15000 640.5 16800 1105.1
Aug 20 11000 446.1 15000 640.6 16900 1105.0
Aug 21 10000 446.3 15000 640.8 16900 1105.0
Aug 22 10500 446.5 15000 640.9 16900 1104.9
Aug 23 10500 446.7 15000 640.8 15000 1104.9
Aug 24 12000 446.7 15000 640.8 15000 1104.8
Average 11000 15000 16300
Aug 25 to
Aug 31 10500 447.9 15000 641.3 16300 1104.4
Sep 1 to
Sep 7 9400 448.0 13400 640.4 12000 1104.5
Current Lake Powell storage is 15,060 thousand acre-feet (KAF) (62 percent of
capacity). Lake Mead storage is 11,958 KAF (46 percent of capacity). Total
system storage is 34,823 KAF (59 percent of capacity). Lake Powell elevation
is 3,631.84 feet.
The Projected April-July forecast for the Colorado River is 8.845 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 1,282 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 18-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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