Upper Stillwater Reservoir
April 26, 2024
2,478 acre-ft
+8.62% today101% of Normal • Normal
Water storage levels at Upper Stillwater Reservoir are currently 2,478 acre-ft, about 101% of normal. The average for this time of year is approximately 2,436.22acre-ft. Maximum recorded Storage since record keeping began in 1989 was 2011-07-08 when levels reached 31,691 acre-ft. Lowest recorded Storage was 2010-04-02 when levels receded to 880 acre-ft. View historical levels.
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.
| Geolocation | -110.700, 40.566 |
| Elevation | 8,169 ft |
| Storage 24hr Change | 8.62% |
| Percent of Normal | 101% |
| Minimum |
880 acre-ft
2010-04-02 |
| Maximum |
31,691 acre-ft
2011-07-08 |
| Average | 2,436 acre-ft |
| Dam_Height | 285 |
| Hydraulic_Height | 198 |
| Drainage_Area | 102 |
| Year_Completed | 1986 |
| Nid_Storage | 35253 |
| Structural_Height | 285 |
| Primary_Dam_Type | Concrete |
| River_Or_Stream | ROCK CREEK |
| Foundations | Rock |
| Surface_Area | 329 |
| Hazard_Potential | High |
| Dam_Length | 2660 |
| Nid_Height | 285 |
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