Fontenelle Dam

Current Status

Last Updated: May 19, 2020

As of May 18, 2020, the Fontenelle Reservoir pool elevation is 6483.97 feet, which amounts to 55 percent of live storage capacity. Inflows for the month of April totaled 83,000 acre-feet (af) or 97 percent of average.

As we continue Spring operations at Fontenelle we are anticipating inflows to continue increasing in May. Consequently, releases will increase from 1,700 cfs to 1,780 cfs on May 21st.

The May final forecast for unregulated inflows into Fontenelle for the next three months projects below average conditions.  May, June, and July inflow volumes amount to 175,000 af (107 percent of average), 265,000 af (89 percent of average), and 147,000 af (83 percent of average), respectively. 

The May water supply forecast of the April through July inflow volume into the Fontenelle Reservoir is 670,000 acre-feet (92 percent of average). Current snowpack is 72 percent of median for the Upper Green Basin.

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 27, 2020. 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. Minutes from the 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: 5/19/20