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)
---- ----- ---- ----- ---- ----- ----
Jun 15 10000 448.2 12500 642.8 15100 1095.8
Jun 16 10500 448.1 14200 642.9 15100 1095.7
Jun 17 9500 448.2 14200 642.9 15100 1095.6
Jun 18 9500 448.4 14200 642.9 15100 1095.5
Jun 19 9000 448.6 14200 643.0 15100 1095.4
Jun 20 9500 448.7 14200 642.5 7900 1095.4
Jun 21 10000 448.9 14200 642.1 9000 1095.4
Average 9700 14000 13200
Jun 22 to
Jun 28 11500 448.6 14300 641.3 13200 1094.9
Jun 29 to
Jul 5 11900 448.5 14600 641.0 14400 1094.3
Current Lake Powell storage is 15,394 thousand acre-feet (KAF) (63 percent of
capacity). Lake Mead storage is 11,137 KAF (43 percent of capacity). Total
system storage is 34,608 KAF (58 percent of capacity). Lake Powell elevation
is 3,634.77 feet.
The projected April-July forecast for the Colorado River is 7.1 million acre-
feet or 90 percent of average.
Yesterday, the average Colorado River flows were 817 cfs near the Yuma Fourth
Avenue Bridge and 1,730 cfs at the Northerly International Boundary. The
average release from Painted Rock Dam was 0 cfs and Alamo Dam was 58 cfs. The
Morelos Dam diversions for the week of 15-Jun-2009 are expected to be 1,700 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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