Current Status
Last Updated: March 07, 2025
As of March 06, 2025, the Fontenelle Reservoir pool elevation is 6472.60 feet, which amounts to 37 percent of live storage capacity. Inflows for the month of February totaled approximately 26,595 acre-feet (af) or 93 percent of average.
Current release rate is set at 825 cfs. This release shall remain constant throughout the winter base flow period, pending significant hydrological changes or emergencies. The winter base flow period is typically from mid-November and ending approximately mid-March, pending icing conditions in the Green River downstream of the dam this coming spring. Releases are expected to be reduced starting March 31st to 800 cfs, due to powerplant annual maintenance. Releases will be maintained at 800 cfs until maintenance is completed. Maintenance is scheduled to be completed on or before April 18th, 2025.
The March final forecast for unregulated inflows into Fontenelle for the next three months projects below average conditions. March, April, and May Most Probable inflow volumes amount to 45,000 af (79 percent of average), 70,000 af (83 percent of average), and 115,000 af (66 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 April 16, 2025 at 10 AM MT and will be held at the Joint Powers Water Board in Green River, Wyoming. Additional details on the meeting will be provided as we get closer to the meeting date.
Prior Fontenelle Working Group meeting minutes are available online on USBR’s website at the Working Group webpage. The Fontenelle Working Group is an open public forum for information exchange between Reclamation and other parties associated with the operation of Fontenelle Reservoir.
