Fontenelle Dam

Current Status

Last Updated: September 2, 2021

As of September 1, 2021, the Fontenelle Reservoir pool elevation is 6493.47 feet, which amounts to 72 percent of live storage capacity. Inflows for the month of August totaled 35,000 acre-feet (af) or 46 percent of average.

Due to dry hydrologic conditions in the Upper Green River Basin, Fontenelle’s releases were lowered from 700 cfs to 600 cfs on August 23, 2021. Based on the observed inflows for the period between April and July, this year’s inflows into the Fontenelle Reservoir ranked as the 6th driest since 1966.

The September final forecast for unregulated inflows into Fontenelle for the next three months projects dry conditions. September, October, and November inflow volumes amount to 30,000 af (65 percent of average), 32,000 af (66 percent of average), and 32,000 af (76 percent of average), respectively. 

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 21, 2022 at 10:00 am. Details on the meeting will be provided as we get closer to the meeting date. 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 26, 2021 meeting will be posted soon on the Working Group webpages.


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

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Last Updated: 9/7/21