Mill Hollow
Key Takeaway
Mill Hollow is classified as high hazard in Utah. It was completed in 1962 and is 64 years old. Its primary use is recreation. 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 Length | 225 ft |
| Dam Type | Earth |
| Max Storage | 441 acre-ft |
| Normal Storage | 329 acre-ft |
| Drainage Area | 2 sq mi |
| Max Discharge | 49 cfs |
| Year Completed | 1962 (64 years old) |
| NID ID | UT00207 |
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
DIVISION OF WILDLIFE RESOURCES
State Government
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High HazardFrequently Asked Questions
What is the hazard classification of Mill Hollow?
Mill Hollow 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 Mill Hollow?
Mill Hollow is owned by DIVISION OF WILDLIFE RESOURCES (State Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Mill Hollow built?
Mill Hollow was completed in 1962, making it 64 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 Mill Hollow?
Mill Hollow serves the following purposes: Recreation. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.
When was Mill Hollow last inspected?
Mill Hollow was last inspected on August 30, 2023. Inspection dates indicate when a formal review occurred, not the results of that inspection.