Fontenelle Dam

Current Status

Last Updated: December 3, 2020

As of December 2, 2020, the Fontenelle Reservoir pool elevation is 6487.64 feet, which amounts to 61 percent of live storage capacity. Inflows for the month of November totaled 32,400 acre-feet (af) or 77 percent of average.

Fontenelle’s releases are currently set at 825 cfs. This release is scheduled to be maintained through the Fall/Winter operation period, which typically ends in March when ice on the Green River begins to thaw.

The December final forecast for unregulated inflows into Fontenelle for the next three months projects below average conditions. December, January, and February inflow volumes amount to 27,000 af (84 percent of average), 26,000 af (86 percent of average), and 24,000 af (87 percent of average), respectively. 

The 2021 water year unregulated inflow volume is forecasted to be 799,000 af (74 percent of average).  This is a decrease when compared to the November forecast when the unregulated inflow volume was forecasted to be 837,000 af (77 percent of average).

Please refer to the following link for Green River flow projections, through Green River, WY, provided by the Colorado River Basin Forecast Center: CBRFC Green River, WY Projection

To view the most current reservoir elevation, content, inflow and release, click on: Fontenelle Reservoir Data.

Working Group Meetings

The next Fontenelle Working Group meeting is scheduled for April 22, 2021. The meeting will be held at 10:00 am at the Seedskadee National Wildlife Refuge. Depending on the COVID-19 (Coronavirus) situation we may need to change it to a virtual meeting using WebEX. The Fontenelle Working Group is an open public forum for information exchange between Reclamation and other parties associated with the operation of Fontenelle Reservoir. Meeting Minutes from the August 27, 2020 meeting are currently posted on the Working Group webpages.


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

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Last Updated: 12/4/20