Sawmill
Key Takeaway
Sawmill is classified as high hazard in Wyoming. It was completed in 1972 and is 54 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 | 38 ft (taller than 84.6% in WY) |
| Dam Length | 517 ft |
| Dam Type | Earth |
| Max Storage | 1.8K acre-ft |
| Normal Storage | 1.3K acre-ft |
| Surface Area | 75 acres |
| Drainage Area | 8 sq mi |
| Max Discharge | 960 cfs |
| Year Completed | 1972 (54 years old) |
| NID ID | WY00677 |
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
SAWMILL RESERVOIR COMPANY (DON ROBERTS)
Private
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Significant Hazard 43 ftFrequently Asked Questions
What is the hazard classification of Sawmill?
Sawmill 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 Sawmill?
Sawmill is owned by SAWMILL RESERVOIR COMPANY (DON ROBERTS) (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Sawmill built?
Sawmill was completed in 1972, making it 54 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 Sawmill?
Sawmill 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 Sawmill?
Sawmill has a dam height of 38 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 Sawmill last inspected?
Sawmill was last inspected on September 5, 2023. Inspection dates indicate when a formal review occurred, not the results of that inspection.