Lower Colorado River Operations Schedule
Releases from Davis and Parker dams will vary from about 1,800 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)
---- ----- ---- ----- ---- ----- ----
Jan 18 6500 447.3 10000 641.8 13100 1097.7
Jan 19 6500 447.4 10000 642.0 13100 1097.7
Jan 20 6000 447.5 10000 642.2 13100 1097.8
Jan 21 5500 447.6 10800 642.4 13100 1097.8
Jan 22 7000 447.6 10800 642.5 13100 1097.9
Jan 23 6500 447.6 10800 642.5 10400 1098.0
Jan 24 6500 447.6 10800 642.4 10700 1098.1
Average 6400 10500 12400
Jan 25 to
Jan 31 6500 447.7 10800 643.0 12300 1098.5
Feb 1 to
Feb 7 7100 447.5 11000 643.4 12000 1098.8
Current Lake Powell storage is 14,182 thousand acre-feet (KAF) (58 percent of
capacity). Lake Mead storage is 11,259 KAF (44 percent of capacity). Total
system storage is 33,003 KAF (56 percent of capacity). Lake Powell elevation
is 3623.91 feet.
The April-July forecast for the Colorado River is 6.2 million acre-feet or
78 percent of average.
Yesterday, the average Colorado River flows were 749 cfs near the Yuma Fourth
Avenue Bridge and 1,776 cfs at the Northerly International Boundary. The
average release from Painted Rock Dam was 0 cfs and Alamo Dam was 22 cfs. The
Morelos Dam diversions for the week of 18-Jan-2010 are expected to be 2,070 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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