Lower Colorado River Operations Schedule
Releases from Davis and Parker dams will vary from about 4,500 cubic feet per second
(cfs) to 15,000 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 19 8500 446.5 9500 633.9 12000 1094.0
Oct 20 8500 446.4 9500 634.1 12000 1093.9
Oct 21 8000 446.4 9500 634.3 12100 1093.9
Oct 22 6500 446.5 9700 634.5 12100 1093.8
Oct 23 7500 446.6 9700 634.6 12100 1093.8
Oct 24 7000 446.7 9700 634.6 9300 1093.8
Oct 25 8000 446.7 9700 634.6 9500 1093.8
Average 7700 9600 11300
Oct 26 to
Nov 1 6400 447.2 10100 635.1 11100 1093.5
Nov 2 to
Nov 8 6400 447.7 10400 634.7 10000 1093.7
Current Lake Powell storage is 15,347 thousand acre-feet (KAF) (63 percent of
capacity). Lake Mead storage is 10,966 KAF (42 percent of capacity). Total
system storage is 34,008 KAF (57 percent of capacity). Lake Powell elevation
is 3,634.36 feet.
Yesterday, the average Colorado River flows were 714 cfs near the Yuma Fourth
Avenue Bridge and 897 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 19-Oct-2009 are expected to be 1,043 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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