Lower Colorado River Operations Schedule
Releases from Davis and Parker dams will vary from about 4,500 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)
---- ----- ---- ----- ---- ----- ----
Oct 5 8500 446.3 11000 634.8 9700 1093.8
Oct 6 8500 446.3 11000 634.7 9700 1093.8
Oct 7 8500 446.3 10000 634.7 9700 1093.8
Oct 8 7000 446.5 10000 634.6 9700 1093.8
Oct 9 8000 446.5 10000 634.6 9700 1093.8
Oct 10 8000 446.5 9000 634.4 6400 1093.9
Oct 11 8000 446.5 9000 634.2 6700 1094.0
Average 8100 10000 8800
Oct 12 to
Oct 18 7300 446.4 9000 634.0 8600 1094.1
Oct 19 to
Oct 25 6700 446.8 8900 633.8 8600 1094.3
Current Lake Powell storage is 15,457 thousand acre-feet (KAF) (64 percent of
capacity). Lake Mead storage is 10,935 KAF (42 percent of capacity). Total
system storage is 34,205 KAF (58 percent of capacity). Lake Powell elevation
is 3,635.32 feet.
Yesterday, the average Colorado River flows were 838 cfs near the Yuma Fourth
Avenue Bridge and 1,097 cfs at the Northerly International Boundary. The
average release from Painted Rock Dam was 0 cfs and Alamo Dam was 50 cfs. The
Morelos Dam diversions for the week of 05-Oct-2009 are expected to be 920 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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