Fontenelle Dam

Current Status

Last Updated: June 8, 2021

As of June 7, 2021, the Fontenelle Reservoir pool elevation is 6483.38 feet, which amounts to 53 percent of live storage capacity. Inflows for the month of May totaled 76,000 acre-feet (af) or 47 percent of average.

Due to dry hydrologic conditions in the Upper Green River Basin, Fontenelle’s releases were lowered from 825 cfs to 700 cfs on May 24, 2021. Based on the latest observed inflows and June forecast for the period between April and July, this year’s inflows into Fontenelle Dam are projected to be the 7th driest since 1966.

The June final forecast for unregulated inflows into Fontenelle for the next three months projects dry conditions. June, July, and August inflow volumes amount to 150,000 af (50 percent of average), 65,000 af (37 percent of average), and 35,000 af (46 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 August 26, 2021 at 10:00 am. The meeting is scheduled to be held virtually via 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 April 22, 2021 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: 6/8/21