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
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)
---- ----- ---- ----- ---- ----- ----
Aug 15 11000 448.2 12600 642.0 14000 1110.2
Aug 16 11000 448.1 12600 642.1 14000 1110.4
Aug 17 10100 448.1 12600 642.1 14000 1110.6
Aug 18 8000 448.4 12600 642.2 14000 1110.8
Aug 19 11800 448.2 12600 642.3 14000 1111.0
Aug 20 11000 448.1 12800 642.2 12000 1111.2
Aug 21 10900 448.0 12800 642.0 11400 1111.5
Average 10500 12700 13300
Aug 22 to
Aug 28 9600 448.5 12800 642.1 13300 1112.9
Aug 29 to
Sep 4 9100 448.5 12500 641.6 11900 1114.0
Current Lake Powell storage is 18,446 thousand acre-feet (KAF)
(76 percent of capacity).
Lake Mead storage is 12,339 KAF (48 percent of capacity).
Total system storage is 39,281 KAF (66 percent of capacity).
Lake Powell elevation is 3,659.64 feet.
The observed April-July inflow for the Colorado River is 12.92
million acre-feet or 163 percent of average.
Yesterday, the average Colorado River flows were 1,040 cfs near
the Yuma Fourth Avenue Bridge and 1,367 cfs at the Northerly
International Boundary. The average release from Painted Rock Dam
was 0 cfs and Alamo Dam was 50 cfs. The Morelos Dam diversions
for the week of 15-Aug-2011 are expected to be 1,310 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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