Windspeed
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Upper Stillwater is a federal-owned concrete gravity dam located in Duchesne, Utah, along the Rock Creek river. Completed in 1986 by the Bureau of Reclamation, this structure serves primarily for irrigation purposes, but also supports recreation and water supply needs in the area. With a maximum storage capacity of 35,253 acre-feet and a normal storage of 33,123 acre-feet, Upper Stillwater plays a crucial role in managing water resources in the region.
Standing at a height of 285 feet and a length of 2,660 feet, Upper Stillwater dam has a spillway width of 600 feet for uncontrolled discharge during high water events. Despite its high hazard potential, the condition assessment of the dam is currently not available, and its last inspection was conducted in August 2020. While the risk assessment is moderate, the emergency action plan for the dam was last revised in June 2020, indicating a commitment to preparedness and safety measures in case of emergencies. For water resource and climate enthusiasts, Upper Stillwater represents a key infrastructure contributing to the sustainability and resilience of water management in the region.
Storage 24hr Change | -0.14% |
Percent of Normal | 128% |
Minimum |
880 acre-ft
2010-04-02 |
Maximum |
31,691 acre-ft
2011-07-08 |
Average | 11,200 acre-ft |
Dam_Height | 285 |
Hydraulic_Height | 198 |
Drainage_Area | 102 |
Year_Completed | 1986 |
Nid_Storage | 35253 |
Structural_Height | 285 |
Foundations | Rock |
Surface_Area | 329 |
River_Or_Stream | ROCK CREEK |
Dam_Length | 2660 |
Hazard_Potential | High |
Primary_Dam_Type | Concrete |
Nid_Height | 285 |
Discharge | Stage | Elevation | |
DIAMOND FORK ABOVE RED HOLLOW
2024-12-21T00:15:00.000-07:00 |
47cfs | 4.17ft | 5439ft |
DUCHESNE RIVER AT MYTON
2024-12-04T00:30:00.000-07:00 |
237cfs | 3.92ft | 5071ft |
FISH CREEK ABOVE RESERVOIR
2024-11-14T00:15:00.000-07:00 |
11cfs | 3.31ft | 7641ft |
STRAWBERRY RIVER NEAR DUCHESNE
2024-11-21T01:00:00.000-07:00 |
99cfs | 5.72ft | 5727ft |
WHITE RIVER BL TABBYUNE C NEAR SOLDIER SUMMIT
2024-11-14T00:15:00.000-07:00 |
12cfs | 2.35ft | 7242ft |
SIXTH WATER CR AB SYAR TUNNEL
2024-11-29T00:15:00.000-07:00 |
24cfs | 4.19ft | 6358ft |
CURRANT CREEK NEAR FRUITLAND
2024-12-21T00:45:00.000-07:00 |
18cfs | 1.3ft | 6678ft |