Menasha Dam
Key Takeaway
Menasha Dam is classified as high hazard in Michigan. It was completed in 1886 and is 140 years old. Its primary use is hydroelectric. 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 Height | 22 ft (taller than 77.5% in MI) |
| Dam Length | 180 ft |
| Dam Type | Gravity |
| Max Storage | 700 acre-ft |
| Normal Storage | 300 acre-ft |
| Surface Area | 73 acres |
| Drainage Area | 1,415 sq mi |
| Year Completed | 1886 (140 years old) |
| NID ID | MI00522 |
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
City of Otsego
Local Government
Nearby Dams
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Low Hazard 17 ftPlainwell Dam Number 2
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High Hazard 25 ftLake Doster Dam
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High Hazard 14 ftFrequently Asked Questions
What is the hazard classification of Menasha Dam?
Menasha Dam 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 Menasha Dam?
Menasha Dam is owned by City of Otsego (Local Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Menasha Dam built?
Menasha Dam was completed in 1886, making it 140 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 Menasha Dam?
Menasha Dam serves the following purposes: Hydroelectric, Recreation. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.
How tall is Menasha Dam?
Menasha Dam has a dam height of 22 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 Menasha Dam last inspected?
Menasha Dam was last inspected on November 3, 2022. Inspection dates indicate when a formal review occurred, not the results of that inspection.