Tropic
Key Takeaway
Tropic is classified as high hazard in Utah. It was completed in 1936 and is 90 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 Length | 752 ft |
| Dam Type | Earth |
| Max Storage | 3.7K acre-ft |
| Normal Storage | 1.9K acre-ft |
| Drainage Area | 86 sq mi |
| Max Discharge | 60 cfs |
| Year Completed | 1936 (90 years old) |
| NID ID | UT00302 |
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
TROPIC-EAST FORK IRRIGATION COMPANY
Private
Nearby Dams
Frequently Asked Questions
What is the hazard classification of Tropic?
Tropic 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 Tropic?
Tropic is owned by TROPIC-EAST FORK IRRIGATION COMPANY (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Tropic built?
Tropic was completed in 1936, making it 90 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 Tropic?
Tropic 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 Tropic last inspected?
Tropic was last inspected on July 11, 2023. Inspection dates indicate when a formal review occurred, not the results of that inspection.