Lower Colorado River Operations Schedule
Releases from Davis and Parker dams will vary from about 8,000 cubic feet per second
(cfs) to 24,000 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)
---- ----- ---- ----- ---- ----- ----
Mar 30 13000 447.0 16300 641.5 20000 1107.7
Mar 31 13500 446.9 18800 641.5 20000 1107.5
Apr 1 13500 446.9 18800 641.7 22300 1107.3
Apr 2 11500 447.1 18800 642.0 22400 1107.0
Apr 3 12500 447.3 18800 642.2 22400 1106.8
Apr 4 13000 447.4 18800 641.9 15800 1106.8
Apr 5 13000 447.5 18800 641.8 17100 1106.7
Average 12900 18400 20000
Apr 6 to
Apr 12 13600 447.8 18800 642.1 20000 1105.7
Apr 13 to
Apr 19 14200 447.9 18800 642.5 20000 1104.6
Current Lake Powell storage is 12,787 thousand acre-feet (KAF) (53 percent of
capacity). Lake Mead storage is 12,250 KAF (47 percent of capacity). Total
system storage is 32,301 KAF (54 percent of capacity). Lake Powell elevation
is 3610.56 feet.
The projected April-July forecast for the Colorado River is 7.0 million acre-
feet or 88 percent of average.
Yesterday, the average Colorado River flows were 1,380 cfs near the Yuma Fourth
Avenue Bridge and 3,252 cfs at the Northerly International Boundary. The
average release from Painted Rock Dam was 0 cfs and Alamo Dam was 39 cfs. The
Morelos Dam diversions for the week of 30-Mar-2009 are expected to be 3,370 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.
|