Lower Colorado River Operations Schedule
Releases from Davis and Parker dams will vary from about 4,500 cubic feet per second (cfs) to 14,000 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)
---- ----- ---- ----- ---- ----- ----
Sep 24 9200 447.5 10700 640.7 9600 1115.5
Sep 25 9200 447.3 10700 640.6 9600 1115.4
Sep 26 8200 447.3 10500 640.5 9600 1115.4
Sep 27 7500 447.4 10500 640.4 9600 1115.4
Sep 28 9000 447.3 10500 640.3 9600 1115.3
Sep 29 9000 447.1 10500 640.0 6000 1115.4
Sep 30 9000 447.0 10500 639.6 6000 1115.4
Average 8700 10600 8600
Oct 1 to
Oct 7 8000 446.6 9800 638.8 8500 1115.3
Oct 8 to
Oct 14 7600 446.8 10200 636.4 5900 1115.5
Current Lake Powell storage is 14,005 thousand acre-feet (KAF) (58 percent of
capacity). Lake Mead storage is 13,162 KAF (50 percent of capacity). Total
system storage is 34,259 KAF (57 percent of capacity). Lake Powell elevation
is 3,622.27 feet.
The observed April-July inflow for the Colorado River is 2.063 million acre-feet or
29 percent of average.
Yesterday, the average Colorado River flows were 943 cfs near the Yuma Fourth
Avenue Bridge and 1,268 cfs at the Northerly International Boundary. The
average release from Painted Rock Dam was 0 cfs and Alamo Dam was 25 cfs. The
Morelos Dam diversions for the week of 24-Sep-2012 are expected to be 1,314 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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