Reservoir Levels Weather Hydrology

Fontenelle Reservoir is a man-made lake situated in southwestern Wyoming. It was created in 1958 by the construction of the Fontenelle Dam, which spans the Green River. The reservoir has a capacity of 345,000 acre-feet and provides irrigation and hydroelectric power to the surrounding area. The Green River supplies the reservoir with water, and snowmelt from the nearby Wind River Range contributes to the surface flow. The reservoir is also used for recreational activities such as fishing, boating, and camping. Agriculture is a major user of the water from the reservoir, with crops such as alfalfa, hay, and sugar beets being grown in the surrounding area. The Fontenelle Reservoir is an important source of water for the region and plays a vital role in supporting the local economy.

June 14, 2024







Storage 24hr Change 5.31%
Percent of Normal 108%
Minimum 2,669 acre-ft
Maximum 369,018 acre-ft
Average 227,102 acre-ft
Nid_Height 139
Hydraulic_Height 121
Drainage_Area 4175
Years_Modified 1989 - Structural
Year_Completed 1963
Dam_Height 139
Structural_Height 139
River_Or_Stream GREEN RIVER
Primary_Dam_Type Earth
Foundations Soil
Surface_Area 8058
Hazard_Potential High
Outlet_Gates Valve - 3
Nid_Storage 405160
Dam_Length 5450

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