Lower Colorado River Operations Schedule
Releases from Davis and Parker dams will vary from about 4,500 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)
---- ----- ---- ----- ---- ----- ---- -----
May 19 11500 447.1 15900 642.7 20400 1108.5 13000
May 20 11500 447.0 17400 642.9 20400 1108.3 13000
May 21 11000 447.2 17400 643.1 20400 1108.1 13000
May 22 10000 447.5 17400 643.3 20400 1108.0 13000
May 23 11000 447.6 17400 643.4 20400 1107.8 13000
May 24 11000 447.8 17400 643.5 18600 1107.7 13000
May 25 11500 447.9 17400 643.5 18600 1107.6 13000
Average 11100 17200 19900 13000
May 26 to
Jun 1 11500 448.7 16700 644.6 19200 1106.6 13000
Jun 2 to
Jun 8 11000 448.4 14900 644.6 15500 1106.1 13100
Current Lake Powell storage is 11,716 thousand acre-feet (KAF) (48 percent of
capacity). Lake Mead storage is 12,312 KAF (48 percent of capacity). Total
system storage is 31,386 KAF (53 percent of capacity). Lake Powell elevation
is 3599.64 feet.
The Projected April-July forecast for the Colorado River is 9.2 million acre-
feet or 116 percent of average.
Yesterday, the average Colorado River flows were 750 cfs near the Yuma Fourth
Avenue Bridge and 1,500 cfs at the Northerly International Boundary. The
average release from Painted Rock Dam was 3 cfs and Alamo Dam was 35 cfs. The
Morelos Dam diversions for the week of 19-May-2008 are expected to be 1,786 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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