Dome Lake No. 1
Key Takeaway
Dome Lake No. 1 is classified as high hazard in Wyoming. It was completed in 1969 and is 57 years old. Its primary use is irrigation. High hazard means loss of life is likely if the dam fails — it does not indicate the dam's current condition. Learn more.
Physical Details
| Dam Height | 30 ft (taller than 63.1% in WY) |
| Dam Length | 1,110 ft |
| Dam Type | Earth |
| Max Storage | 2.0K acre-ft |
| Normal Storage | 1.5K acre-ft |
| Surface Area | 96 acres |
| Drainage Area | 15 sq mi |
| Max Discharge | 2,750 cfs |
| Year Completed | 1969 (57 years old) |
| Year Modified | 1979 |
| NID ID | WY00650 |
Safety Information
Loss of human life is likely if the dam fails.
Hazard potential describes downstream consequences of failure, not the dam's current condition. What does this mean?
Ownership
DOME LAKE RESERVOIR COMPANY (D. ROBERTS)
Private
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Significant Hazard 43 ftFrequently Asked Questions
What is the hazard classification of Dome Lake No. 1?
Dome Lake No. 1 is classified as High Hazard. Loss of human life is likely if the dam fails. This classification refers to the potential downstream consequences of a failure, not the dam's current structural condition.
Who owns and operates Dome Lake No. 1?
Dome Lake No. 1 is owned by DOME LAKE RESERVOIR COMPANY (D. ROBERTS) (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Dome Lake No. 1 built?
Dome Lake No. 1 was completed in 1969, making it 57 years old. Many U.S. dams were built between the 1930s and 1970s during a period of major infrastructure investment.
What is the primary purpose of Dome Lake No. 1?
Dome Lake No. 1 serves the following purposes: Irrigation. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.
How tall is Dome Lake No. 1?
Dome Lake No. 1 has a dam height of 30 ft. Dam height is measured from the natural streambed at the downstream toe to the top of the dam, and may differ from the visible height.
When was Dome Lake No. 1 last inspected?
Dome Lake No. 1 was last inspected on September 17, 2020. Inspection dates indicate when a formal review occurred, not the results of that inspection.