Lower Colorado River Operations Schedule
Releases from Davis and Parker dams will vary from about 5,000 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 12 8500 446.1 10200 633.5 11500 1094.0
Oct 13 8000 446.1 10200 633.6 11500 1094.0
Oct 14 8500 446.1 10200 633.7 11500 1094.0
Oct 15 6500 446.4 10200 633.8 11500 1093.9
Oct 16 8500 446.3 9900 633.9 11500 1093.9
Oct 17 8000 446.4 9900 633.8 8200 1093.9
Oct 18 8000 446.4 9500 633.7 8500 1093.9
Average 8000 10000 10600
Oct 19 to
Oct 25 6700 447.2 9500 634.3 10600 1093.8
Oct 26 to
Nov 1 6300 447.5 9500 634.7 10400 1093.7
Current Lake Powell storage is 15,392 thousand acre-feet (KAF) (63 percent of
capacity). Lake Mead storage is 10,956 KAF (42 percent of capacity). Total system
storage is 34,066 KAF (57 percent of capacity). Lake Powell elevation is 3,634.75 feet.
Yesterday, the average Colorado River flows were 703 cfs near the Yuma Fourth Avenue
Bridge and 884 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 12-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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