Reservoir Levels Weather Hydrology

Upper Stillwater Reservoir is a man-made lake located in the Uinta Mountains of northeastern Utah. The reservoir was created in the 1980s to store water for irrigation, municipal, and industrial purposes. The reservoir is fed by snowmelt from the surrounding mountains and by surface flows from local creeks and streams. It has a capacity of 18,500 acre-feet and a surface area of approximately 600 acres. The primary users of water from the reservoir are agricultural producers and municipalities in the area. The reservoir also provides opportunities for recreational activities, such as fishing and boating, and serves as a popular destination for outdoor enthusiasts. The reservoir is managed by the Upper Stillwater Dam and Canal Company, which oversees the operation and maintenance of the dam and associated infrastructure.

June 21, 2024







Storage 24hr Change -0.04%
Percent of Normal 117%
Minimum 880 acre-ft
Maximum 31,691 acre-ft
Average 26,824 acre-ft
Dam_Height 285
Hydraulic_Height 198
Drainage_Area 102
Year_Completed 1986
Nid_Storage 35253
Structural_Height 285
Primary_Dam_Type Concrete
Foundations Rock
Surface_Area 329
Hazard_Potential High
River_Or_Stream ROCK CREEK
Dam_Length 2660
Nid_Height 285

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