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 30 10800 448.1 13400 641.8 15200 1087.1
Aug 31 11300 448.0 13400 641.9 15200 1087.0
Sep 1 11400 447.9 13600 641.9 12900 1087.1
Sep 2 8600 448.0 13600 641.8 12900 1087.1
Sep 3 11500 447.8 13600 641.7 12900 1086.9
Sep 4 11300 447.6 13600 641.4 10100 1086.9
Sep 5 11400 447.3 13600 641.2 10400 1086.8
Average 10900 13500 12800
Sep 6 to
Sep 12 9000 447.0 13600 640.1 11800 1086.2
Sep 13 to
Sep 19 9000 446.8 13600 639.0 11800 1085.6
Current Lake Powell storage is 15,443 thousand acre-feet (KAF) (63 percent of
capacity). Lake Mead storage is 10,368 KAF (40 percent of capacity). Total
system storage is 33,869 KAF (57 percent of capacity). Lake Powell elevation
is 3,635.20 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 1,040 cfs near the Yuma Fourth
Avenue Bridge and 1,384 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 30-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.
|