Lower Colorado River Operations Schedule
Releases from Davis and Parker dams will vary from about 4,500
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
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 19 9500 448.0 12600 641.9 12200 1114.8
Sep 20 9500 448.0 12800 641.8 12200 1114.9
Sep 21 8500 448.1 12800 641.8 12200 1114.9
Sep 22 7500 448.2 12800 641.7 12100 1115.0
Sep 23 9500 448.2 12800 641.6 12100 1115.0
Sep 24 9500 448.1 12800 641.4 10100 1115.1
Sep 25 9500 448.1 12500 641.2 9600 1115.2
Average 9100 12700 11500
Sep 26 to
Oct 2 8700 448.4 12300 639.9 10100 1116.0
Oct 3 to
Oct 9 7800 448.4 10000 638.1 6700 1117.1
Current Lake Powell storage is 17,724 thousand acre-feet (KAF)
(73 percent of capacity).
Lake Mead storage is 12,826 KAF (50 percent of capacity).
Total system storage is 38,844 KAF (65 percent of capacity).
Lake Powell elevation is 3,654.04 feet.
The observed April-July inflow for the Colorado River is 12.90
million acre-feet or 163 percent of average.
Yesterday, the average Colorado River flows were 1,070 cfs near
the Yuma Fourth Avenue Bridge and 1,317 cfs at the Northerly
International Boundary. The average release from Painted Rock
Dam was 0 cfs and Alamo Dam was 50 cfs.
The Morelos Dam diversions for the week of 19-Sep-2011 are
expected to be 1,310 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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