Logan No. 3
Key Takeaway
Logan No. 3 is classified as low hazard in Utah. It was completed in 1924 and is 102 years old. Its primary use is hydroelectric.
Physical Details
| Dam Height | 32 ft (taller than 47.1% in UT) |
| Dam Length | 108 ft |
| Dam Type | Concrete |
| Normal Storage | 40 acre-ft |
| Surface Area | 14 acres |
| Max Discharge | 2,500 cfs |
| Year Completed | 1924 (102 years old) |
| NID ID | UT00310 |
Safety Information
No probable loss of human life and low economic/environmental losses expected.
Hazard potential describes downstream consequences of failure, not the dam's current condition. What does this mean?
Ownership
Logan, City of
Local Government
Nearby Dams
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High Hazard 24 ftMarchant Brothers 83-R15
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Low HazardRich Reservoir
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High Hazard 116 ftFrequently Asked Questions
What is the hazard classification of Logan No. 3?
Logan No. 3 is classified as Low Hazard. No probable loss of human life and low economic/environmental losses expected. This classification refers to the potential downstream consequences of a failure, not the dam's current structural condition.
Who owns and operates Logan No. 3?
Logan No. 3 is owned by Logan, City of (Local Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Logan No. 3 built?
Logan No. 3 was completed in 1924, making it 102 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 Logan No. 3?
Logan No. 3 serves the following purposes: Hydroelectric, Irrigation, Flood Risk Reduction. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.
How tall is Logan No. 3?
Logan No. 3 has a dam height of 32 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 Logan No. 3 last inspected?
Logan No. 3 was last inspected on October 13, 2022. Inspection dates indicate when a formal review occurred, not the results of that inspection.