Lower Colorado River Operations Schedule
Releases from Davis and Parker dams will vary from about 2,000 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)
---- ----- ---- ----- ---- ----- ---- -----
Sep 11 10600 447.2 12100 642.7 10500 1126.1 9100
Sep 12 10600 447.1 12100 642.5 10500 1126.0 9100
Sep 13 10600 446.9 12100 642.4 10500 1125.9 9100
Sep 14 8800 446.9 12100 642.2 10500 1125.9 9100
Sep 15 10000 446.8 12100 642.1 10500 1125.8 9100
Sep 16 10000 446.7 12100 641.8 8800 1125.8 9100
Sep 17 10000 446.6 12100 641.5 8800 1125.8 9100
Average 10100 12100 10000 9100
Sep 18 to
Sep 24 9200 446.5 12200 640.3 10200 1125.3 9100
Sep 25 to
Oct 1 9100 446.7 12400 638.7 9800 1124.9 9200
Current Lake Powell storage is 11,981 thousand acre-feet (KAF) (49 percent of
capacity). Lake Mead storage is 13,992 KAF (54 percent of capacity). Total
system storage is 33,906 KAF (57 percent of capacity). Lake Powell elevation
is 3602.40 feet.
The observed April-July forcast for the Colorado River is 5.32 million acre-
feet or 67 percent of average.
Yesterday, the average Colorado River flows were 1,170 cfs near the Yuma Fourth
Avenue Bridge and 1,444 cfs at the Northerly International Boundary. The
average release from Painted Rock Dam was 1 cfs and Alamo Dam was 45 cfs. The
Morelos Dam diversions for the week of 11-Sep-2006 are expected to be 1,501 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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