Etna
Key Takeaway
Etna is classified as significant hazard in Utah. It was completed in 1959 and is 67 years old. Its primary use is irrigation. Significant hazard means failure could cause economic or environmental damage. Learn more.
Physical Details
| Dam Length | 1,400 ft |
| Dam Type | Earth |
| Max Storage | 1.5K acre-ft |
| Normal Storage | 1.5K acre-ft |
| Drainage Area | 31 sq mi |
| Max Discharge | 19 cfs |
| Year Completed | 1959 (67 years old) |
| NID ID | UT00319 |
Safety Information
No probable loss of human life, but can cause economic loss, environmental damage, or disruption of lifeline facilities.
Hazard potential describes downstream consequences of failure, not the dam's current condition. What does this mean?
Ownership
WEST FORK GROUSE CREEK IRRIGATION CO
Private
Nearby Dams
Frequently Asked Questions
What is the hazard classification of Etna?
Etna is classified as Significant Hazard. No probable loss of human life, but can cause economic loss, environmental damage, or disruption of lifeline facilities. This classification refers to the potential downstream consequences of a failure, not the dam's current structural condition.
Who owns and operates Etna?
Etna is owned by WEST FORK GROUSE CREEK IRRIGATION CO (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Etna built?
Etna was completed in 1959, making it 67 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 Etna?
Etna serves the following purposes: Irrigation. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.
When was Etna last inspected?
Etna was last inspected on June 15, 2023. Inspection dates indicate when a formal review occurred, not the results of that inspection.