Lower Colorado River Operations Schedule
Releases from Davis and Parker dams will vary from about 4,300 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 1 10500 448.5 14700 643.6 16800 1097.2
Jun 2 10500 448.4 14700 643.7 16800 1097.0
Jun 3 9500 448.5 14700 643.8 16800 1096.9
Jun 4 9000 448.6 14700 643.9 16900 1096.7
Jun 5 10000 448.7 14700 644.1 16900 1096.5
Jun 6 10500 448.6 14700 643.7 9600 1096.5
Jun 7 10500 448.6 14700 643.3 10700 1096.5
Average 10100 14700 14900
Jun 8 to
Jun 14 11100 447.9 14700 643.2 14900 1095.7
Jun 15 to
Jun 21 11300 448.0 14800 643.1 14900 1094.9
Current Lake Powell storage is 14,539 thousand acre-feet (KAF) (60 percent of
capacity). Lake Mead storage is 11,282 KAF (44 percent of capacity). Total
system storage is 33,736 KAF (57 percent of capacity). Lake Powell elevation
is 3,627.18 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 1,350 cfs near the Yuma Fourth
Avenue Bridge and 1,550 cfs at the Northerly International Boundary. The
average release from Painted Rock Dam was 0 cfs and Alamo Dam was 54 cfs. The
Morelos Dam diversions for the week of 01-Jun-2009 are expected to be 1,630 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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