Lower Colorado River Operations Schedule
Releases from Davis and Parker dams will vary from about 4,500 cubic feet per second
(cfs) to 23,000 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)
---- ----- ---- ----- ---- ----- ----
Jul 16 12500 448.6 13800 642.3 15100 1115.3
Jul 17 12500 448.5 13800 642.4 15100 1115.3
Jul 18 11500 448.6 13800 642.5 15100 1115.2
Jul 19 10500 448.7 13800 642.5 15100 1115.2
Jul 20 12000 448.7 13800 642.6 15100 1115.2
Jul 21 12000 448.7 13800 642.6 15100 1115.1
Jul 22 12000 448.7 13800 642.7 15100 1115.1
Average 11900 13800 15100
Jul 23 to
Jul 29 11600 448.7 13600 643.2 15100 1114.9
Jul 30 to
Aug 5 11300 448.8 13400 643.2 13900 1114.9
Current Lake Powell storage is 15,035 thousand acre-feet (KAF) (62 percent of
capacity). Lake Mead storage is 13,150 KAF (50 percent of capacity). Total
system storage is 35,691 KAF (60 percent of capacity). Lake Powell elevation
is 3,631.62 feet.
The April-July forecast for the Colorado River is 2.01 million acre-feet or
28 percent of average.
Yesterday, the average Colorado River flows were 1,260 cfs near the Yuma Fourth
Avenue Bridge and 1,515 cfs at the Northerly International Boundary. The
average release from Painted Rock Dam was 0 cfs and Alamo Dam was 42 cfs. The
Morelos Dam diversions for the week of 16-Jul-2012 are expected to be 1,481 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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