Aspinall Unit Reservoirs

Blue Mesa Reservoir

Current Status

Last Updated: November 5, 2020

Aspinall Unit Reservoirs – As of November 4, 2020 releases from Crystal Dam are approximately 400 cfs. Gunnison Tunnel diversions have been terminated for the irrigation season.  There will be periodic diversions to refill Fairview Reservoir about every 2 weeks throughout the winter months.    Flows in the Black Canyon are about 380 cfs.

Blue Mesa did not fill in 2020.  On June 19, 2020, the elevation of Blue Mesa was 7492.87 feet above sea level corresponding to a live storage of 603,855 af (72.8 percent of capacity).  This was the peak elevation achieved after the spring runoff during 2020.  As of November 4, 2020, the elevation of Blue Mesa was 7463.47 feet corresponding to a live storage of 392,975 af (47.4 percent of capacity).
The unregulated inflow volume in October to Blue Mesa was 20,053 af (53 percent of average). Unregulated Inflow volumes forecasted for Blue Mesa for the next three months (November, December and January) are projected to be: 20,000 af (65 percent of average), 19,000 af (73 percent of average) and 17,000 af (71 percent of average), respectively. The November 24-Month Study is reflective of these new forecasts.  The 2021 water year unregulated inflow volume is projected to be 650,054 af (68 percent of average). This is notably decreased from October when the unregulated inflow volume was projected to be 755,000 af (79 percent of average).

The Aspinall Unit operations meeting 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 operations meetings are posted on the Aspinall Operations Meeting 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 scheduled opertations meeting will be in January of 2021 but no date has been set at this time. More details will be posted as they become available.

Updated 11/5/2020
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: 11/9/20