Lower Colorado River Operations Schedule
Releases from Davis and Parker dams will vary from about 4,500 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)
---- ----- ---- ----- ---- ----- ----
Sep 8 10000 447.8 13000 642.4 12500 1105.0
Sep 9 10000 447.8 13000 642.4 12500 1105.0
Sep 10 9500 447.9 13000 642.3 12500 1104.9
Sep 11 8500 448.1 13000 642.3 12500 1104.9
Sep 12 9000 448.2 13000 642.2 12500 1104.9
Sep 13 9500 448.3 13000 642.0 10700 1104.9
Sep 14 10000 448.4 13000 641.8 10700 1105.0
Average 9500 13000 12000
Sep 15 to
Sep 21 9600 448.2 13000 641.4 12000 1105.0
Sep 22 to
Sep 28 9400 447.6 13000 640.7 12000 1104.9
Current Lake Powell storage is 14,757 thousand acre-feet (KAF) (61 percent of
capacity). Lake Mead storage is 11,938 KAF (46 percent of capacity). Total
system storage is 34,489 KAF(58 percent of capacity). Lake Powell elevation
is 3629.14 feet.
The observed April-July forecast for the Colorado River is 8.8 million acre-
feet or 111 percent of average.
Yesterday, the average Colorado River flows were 1,360 cfs near the Yuma Fourth
Avenue Bridge and 1,553 cfs at the Northerly International Boundary. The
average release from Painted Rock Dam was 0 cfs and Alamo Dam was 48 cfs. The
Morelos Dam diversions for the week of 08-Sep-2008 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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