Lower Colorado River Operations Schedule
Releases from Davis and Parker dams will vary from about 8,500 cubic feet per second
(cfs) to 20,000 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)
---- ----- ---- ----- ---- ----- ----
Jul 14 12500 447.8 14500 642.2 14600 1104.5
Jul 15 12500 447.6 14500 642.1 14600 1104.5
Jul 16 12200 447.5 14500 642.1 14600 1104.5
Jul 17 10000 447.7 14500 642.1 14600 1104.4
Jul 18 11600 447.6 14500 642.1 14600 1104.4
Jul 19 12500 447.5 14500 641.9 12800 1104.4
Jul 20 12500 447.3 14500 641.8 12700 1104.4
Average 12000 14500 14100
Jul 21 to
Jul 27 11400 447.2 14500 641.2 13900 1104.2
Jul 28 to
Aug 3 11300 447.1 13800 641.0 13700 1104.2
Current Lake Powell storage is 15,223 thousand acre-feet (KAF) (63 percent of
capacity). Lake Mead storage is 11908 KAF (46 percent of capacity). Total
system storage is 35,023 KAF (59 percent of capacity). Lake Powell elevation
is 3633.28 feet.
The Projected April-July forecast for the Colorado River is 8.8 million acre-
feet or 111 percent of average.
Yesterday, the average Colorado River flows were 736 cfs near the Yuma Fourth
Avenue Bridge and 1,801 cfs at the Northerly International Boundary. The
average release from Painted Rock Dam was 1 cfs and Alamo Dam was 46 cfs. The
Morelos Dam diversions for the week of 14-Jul-2008 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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