Lower Colorado River Operations Schedule
Releases from Davis and Parker dams will vary from about 4,600 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 26 8000 446.8 12500 634.3 13900 1093.7
Oct 27 7000 447.1 12500 634.4 13900 1093.6
Oct 28 8500 447.1 12500 634.5 13900 1093.5
Oct 29 6500 447.3 12500 634.7 13900 1093.4
Oct 30 8000 447.4 12500 634.8 13900 1093.3
Oct 31 7500 447.5 11500 634.7 11100 1093.3
Nov 1 8000 447.5 10000 634.6 8700 1093.3
Average 7600 12000 12800
Nov 2 to
Nov 8 6400 447.1 9700 634.7 10200 1093.5
Nov 9 to
Nov 15 6300 446.8 9300 635.1 10200 1093.7
Current Lake Powell storage is 15,302 thousand acre-feet (KAF) (63 percent of
capacity). Lake Mead storage is 10,948 KAF (42 percent of capacity). Total
system storage is 33,938 KAF (57 percent of capacity). Lake Powell elevation
is 3,633.97 feet.
Yesterday, the average Colorado River flows were 837 cfs near the Yuma Fourth
Avenue Bridge and 1,052 cfs at the Northerly International Boundary. The
average release from Painted Rock Dam was 0 cfs and Alamo Dam was 53 cfs. The
Morelos Dam diversions for the week of 26-Oct-2009 are expected to be 1,193 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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