Lower Colorado River Operations Schedule
Releases from Davis and Parker dams will vary from about 4,600 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)
---- ----- ---- ----- ---- ----- ----
Jun 28 11000 448.6 16600 643.6 18600 1089.8
Jun 29 11000 448.7 16000 643.8 18600 1089.6
Jun 30 11000 448.7 14000 644.1 18700 1089.3
Jul 1 6500 449.0 15400 644.1 15900 1089.2
Jul 2 11900 448.8 15400 644.1 15900 1089.1
Jul 3 11000 448.7 15800 643.9 13200 1089.0
Jul 4 11000 448.7 15800 643.7 13400 1089.0
Average 10500 15600 16300
Jul 5 to
Jul 11 11900 448.4 15500 643.2 14900 1088.7
Jul 12 to
Jul 18 11800 448.6 14400 643.3 14900 1088.3
Current Lake Powell storage is 15,772 thousand acre-feet (KAF) (65 percent of
capacity). Lake Mead storage is 10,655 KAF (41 percent of capacity). Total
system storage is 34,668 KAF (58 percent of capacity). Lake Powell elevation
is 3,638.03 feet.
The April-July forecast for the Colorado River is 5.50 million acre-feet or
69 percent of average.
Yesterday, the average Colorado River flows were 1,490 cfs near the Yuma Fourth
Avenue Bridge and 1,733 cfs at the Northerly International Boundary. The
average release from Painted Rock Dam was 9 cfs and Alamo Dam was 50 cfs. The
Morelos Dam diversions for the week of 28-Jun-2010 are expected to be 1,710 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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