Lower Colorado River Operations Schedule
Releases from Davis and Parker dams will vary from about 4,500 cubic feet per second
(cfs) to 23,000 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 9 12000 448.0 14600 643.0 14100 1087.1
Aug 10 11700 447.9 14600 642.9 14100 1087.1
Aug 11 10700 447.9 14600 642.8 14100 1087.0
Aug 12 9500 448.1 14600 642.8 14100 1087.0
Aug 13 11100 448.1 14600 642.7 14100 1087.0
Aug 14 11700 448.0 14400 642.5 11400 1087.0
Aug 15 11500 448.0 14400 642.2 11600 1087.1
Average 11200 14500 13400
Aug 16 to
Aug 22 9800 448.1 13300 642.1 13400 1087.0
Aug 23 to
Aug 29 9400 447.9 12800 642.2 13400 1087.0
Current Lake Powell storage is 15,609 thousand acre-feet (KAF) (64 percent of
capacity). Lake Mead storage is 10,363 KAF (40 percent of capacity). Total system
storage is 34,161 KAF (58 percent of capacity). Lake Powell elevation is
3,636.63 feet.
The observed April-July inflow for the Colorado River is 5.80 million acre-feet
or 73 percent of average.
Yesterday, the average Colorado River flows were 639 cfs near the Yuma Fourth Avenue
Bridge and 1,564 cfs at the Northerly International Boundary. The average release
from Painted Rock Dam was 1 cfs and Alamo Dam was 50 cfs. The Morelos Dam diversions
for the week of 09-Aug-2010 are expected to be 1,347 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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