Aspinall Unit Reservoirs

Blue Mesa Reservoir

Current Status

Last Updated: January 19, 2023

Aspinall Unit Reservoirs – As of January 11, 2023, releases from Crystal Dam are approximately 350 cfs.  Flows of the Gunnison River in the Black Canyon are being maintained at about 340 cfs while flows in the Whitewater Reach of the Gunnison River are about 800 cfs.

The unregulated inflow volume in November to Blue Mesa was 24,300 af (97 percent of average). Unregulated Inflow volumes forecasted for Blue Mesa for the next three months (January, February and March) are projected to be: 20,000 af (83 percent of average), 18,000 af (82 percent of average) and 30,000 af (79 percent of average), respectively. The January 24-Month Study will be reflective of these new forecasted inflows.

The forecasted 2023 water year unregulated inflow volume to Blue Mesa is projected to be 838,000 af (93 percent of average).  The water supply period (April-July) for 2023 is forecasted to be 605,000 af of unregulated inflow (95 percent of average).
Blue Mesa elevation is currently increasing and as of January 8, 2022, was 7,446.62 feet above sea level corresponding to a live storage of 291,121 acre-feet which is 35 percent of capacity.  By the end of water year 2023 (September 30, 2023) Blue Mesa elevation is projected to be 7,482.69 feet with about 521,900 acre-feet of storage which will be 63 percent of capacity.

The Aspinall Unit Operations Group is an open public forum for information exchange between Reclamation and the stakeholders of the Aspinall Unit. The public is encouraged to attend and comments on the operations and plans presented by Reclamation at these meetings. Meeting notes from past working Group meetings are posted on the Operations Group webpage. For more information on this group and these meetings please contact Erik Knight in the Grand Junction Area Office at (970) 248-0629.

The next Operations Group meeting will be held January 19, 2023 at 1:00 p.m., in person in Grand Junction Colorado and also broadcast virtually.  The in-person meeting will be at Reclamation’s Western Colorado Area Office located at located at 445 West Gunnison Avenue in Grand Junction, Colorado.  Contact Erik Knight in the Grand Junction Area Office at (970) 248-0629 to get more information regarding this Operation Group meeting.

Updated 1/19/2023
Rick Clayton
Aspinall Operations

To view the most current reservoir elevation, content, inflow and release, click on: Blue Mesa Reservoir Data or Crystal Reservoir Data.


Please contact the Operations Group via e-mail at for additional information.

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Last Updated: 1/23/23