Lower Colorado River Operations Schedule

Note: You may now view this report with near real-time data at this link. The link is updated hourly with our most recent operations data and operational projections.


Releases from Davis and Parker dams will vary from about 4,400 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)
       -----       -----     -----     -----     -----     -----      -----
       Jul 23      11400     448.3     13600     643.5     13200      1077.0
       Jul 24      11400     448.2     12800     643.5     13200      1076.9
       Jul 25      10500     448.2     12800     643.5     13200      1077.0
       Jul 26       8400     448.3     12800     643.4     13200      1077.0
       Jul 27      10400     448.2     12900     643.4     13200      1077.1
       Jul 28      10800     448.2     12900     643.4     13200      1077.1
       Jul 29      10900     448.1     12900     643.4     13200      1077.1
       
       Average     10500               13000               13200
       
       Jul 30 to
       Aug  5      10300     447.5     12100     643.0     12000      1077.5
       
       Aug  6 to
       Aug 12      10000     447.5     11600     642.6     11500      1078.0


Current Lake Powell storage is 12,353 thousand acre-feet (KAF) (51 percent of capacity).
Lake Mead storage is 9,757 KAF (37 percent of capacity).  Total system storage is 29,950
KAF (50 percent of capacity).  Lake Powell elevation is 3,606.21 feet.

The April-July unregulated inflow forecast for the Colorado River is 2.63 million acre-
feet or 37 percent of average.

Yesterday, the average Colorado River flows were 708 cfs near the Yuma Fourth Avenue
Bridge and 2,009 cfs at the Northerly International Boundary.  The average release from
Painted Rock Dam was 0 cfs and Alamo Dam was 0 cfs.  The Morelos Dam diversions for the
week of 23-Jul-2018 are expected to be 1,909 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.

                This Schedule can now be accessed on the Internet at:
                   www.usbr.gov/lc/region/g4000/hourly/rivops.html

Last updated: 20-July-2018


Please contact the Water Operations Control Center via e-mail at bcoowaterops@usbr.gov or via phone at (702) 293-8373 for additional questions or information.