Lower Colorado River Operations Schedule
Releases from Davis and Parker dams will vary from about 4,300 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 Glen Cyn
Dam Lake Dam Lake Dam Lake Dam
Average Havasu Average Mohave Average Mead Average
Release Elev. Release Elev. Release Elev. Release
Date (cfs) (ft) (cfs) (ft) (cfs) (ft) (cfs)
---- ----- ---- ----- ---- ----- ---- -----
Apr 30 12000 447.5 17900 643.9 18400 1120.9 10100
May 1 11500 447.8 16600 643.9 17700 1120.8 9800
May 2 11500 447.9 16600 644.0 17700 1120.6 9800
May 3 10000 448.2 16600 644.0 17700 1120.5 9800
May 4 10500 448.4 16600 644.1 17700 1120.3 9800
May 5 13500 448.3 16600 644.0 15900 1120.2 9800
May 6 12000 448.4 16600 643.9 15900 1120.1 9800
Average 11600 16800 17300 9800
May 7 to
May 13 12000 448.7 16600 643.9 17100 1119.1 9800
May 14 to
May 20 12000 448.9 16500 643.9 17100 1118.0 9800
Current Lake Powell storage is 11,767 thousand acre-feet (KAF) (48 percent of
capacity). Lake Mead storage is 13,505 KAF (52 percent of capacity). Total
system storage is 33,151 KAF (56 percent of capacity). Lake Powell elevation
is 3600.18 feet.
The Projected April-July forecast for the Colorado River is 4.2 million acre-
feet or 53 percent of average.
Yesterday, the average Colorado River flows were 725 cfs near the Yuma Fourth
Avenue Bridge and 2,525 cfs at the Northerly International Boundary. The
average release from Painted Rock Dam was 13 cfs and Alamo Dam was 18 cfs. The
Morelos Dam diversions for the week of 30-Apr-2007 are expected to be 1,990 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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