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)
---- ----- ---- ----- ---- ----- ----
Aug 23 10700 447.7 14200 641.9 15200 1087.4
Aug 24 11500 447.6 14200 642.0 15200 1087.4
Aug 25 10600 447.6 14200 642.0 15200 1087.4
Aug 26 8400 447.8 14400 642.1 15200 1087.3
Aug 27 11500 447.8 14400 642.1 15200 1087.3
Aug 28 11200 447.7 14400 642.1 15200 1087.2
Aug 29 11100 447.7 14400 642.1 15200 1087.2
Average 10700 14300 15200
Aug 30 to
Sep 5 9100 448.3 13700 641.5 12800 1086.9
Sep 6 to
Sep 12 9000 447.9 13400 640.5 11800 1086.3
Current Lake Powell storage is 15,501 thousand acre-feet (KAF) (64 percent of
capacity). Lake Mead storage is 10,396 KAF (40 percent of capacity). Total
system storage is 33,991 KAF (57 percent of capacity). Lake Powell elevation
is 3,635.70 feet.
The observed April-July inflow for the Colorado River is 5.8 million acre-feet or
73 percent of average.
Yesterday, the average Colorado River flows were 1,050 cfs near the Yuma Fourth
Avenue Bridge and 1,324 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 23-Aug-2010 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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