Lower Colorado River Operations Schedule
Releases from Davis and Parker dams will vary from about 4,400 cubic feet per second
(cfs) to 23,500 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 15 10000 448.5 13600 641.2 12500 1105.1
Sep 16 10000 448.4 13600 641.1 12500 1105.1
Sep 17 9000 448.4 13600 641.0 12500 1105.1
Sep 18 9000 448.4 13600 640.9 12500 1105.1
Sep 19 9500 448.4 13600 640.8 12500 1105.1
Sep 20 9500 448.4 13600 640.6 10700 1105.1
Sep 21 10000 448.3 13600 640.3 10700 1105.1
Average 9600 13600 12000
Sep 22 to
Sep 28 9400 447.6 12800 638.1 8800 1105.6
Sep 29 to
Oct 5 8800 447.1 11200 636.2 7800 1106.2
Current Lake Powell storage is 14,698 thousand acre-feet (KAF) (60 percent of
capacity). Lake Mead storage is 11,951 KAF (46 percent of capacity). Total
system storage is 34,388 KAF (58 percent of capacity). Lake Powell elevation
is 3,628.61 feet.
The Observed April-July inflow for the Colorado River is 8.844 million acre-
feet or 111 percent of average.
Yesterday, the average Colorado River flows were 1,070 cfs near the Yuma Fourth
Avenue Bridge and 1,307 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 15-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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