Koosharem
Key Takeaway
Koosharem is classified as high hazard in Utah. It was completed in 1919 and is 107 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 | 1,950 ft |
| Dam Type | Earth |
| Max Storage | 7.4K acre-ft |
| Normal Storage | 3.0K acre-ft |
| Drainage Area | 63 sq mi |
| Max Discharge | 58 cfs |
| Year Completed | 1919 (107 years old) |
| NID ID | UT00165 |
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
KOOSHAREM IRRIGATION COMPANY
Private
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High HazardFrequently Asked Questions
What is the hazard classification of Koosharem?
Koosharem 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 Koosharem?
Koosharem is owned by KOOSHAREM IRRIGATION COMPANY (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Koosharem built?
Koosharem was completed in 1919, making it 107 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 Koosharem?
Koosharem 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 Koosharem last inspected?
Koosharem was last inspected on July 14, 2023. Inspection dates indicate when a formal review occurred, not the results of that inspection.