Aspinall Unit Reservoirs

Blue Mesa Reservoir

Current Status

Last Updated: June 10, 2022

Aspinall Unit Reservoirs – As of June 9, 2022, releases from Crystal Dam are approximately 1,350 cfs. Gunnison Tunnel diversions are occurring and currently about 1,030 cfs.  Flows of the Gunnison River in the Black Canyon are being maintained at about 320 cfs while flows in the Whitewater Reach of the Gunnison River are about 2,200 cfs.

The unregulated inflow volume in January to Blue Mesa was 176,837 af (87 percent of average). Unregulated Inflow volumes forecasted for Blue Mesa for the next three months (June, July and August) are projected to be: 136,000 af (54 percent of average), 55,000 af (51 percent of average) and 38,000 af (63 percent of average), respectively. The June 24-Month Study will be reflective of these new forecasted inflows. 

The forecasted 2022 water year unregulated inflow volume to Blue Mesa is projected to be 637,200 af (70 percent of average based on period from 1991-2020).  The water supply period (April-July) for 2022 is forecasted to be 429,600 af of unregulated inflow (68 percent of average).    

Blue Mesa elevation is now increasing and as of June 9, 2022, was 7,459.01 feet above sea level corresponding to a live storage of 361,100 acre-feet which is 43.1 percent of capacity.  Blue Mesa elevation will likely continue to increase till mid-July and is projected to peak out at about 7,464 feet.  By the end of water year 2022 (September 30, 2022) Blue Mesa elevation is projected to be 7,447 feet with about 295,000 acre-feet of storage which will be 35 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 in August 2022.  The meeting will be held in person.  Contact Erik Knight in the Grand Junction Area Office at (970) 248-0629 to get more information regarding this Operation Group meeting.

Updated 6/10/2022
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.

Back to Top

Last Updated: 6/10/22