Neenah
Key Takeaway
Neenah is classified as high hazard in Wisconsin. It was completed in 1881 and is 145 years old. Its primary use is flood risk reduction. 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 | 15 ft (taller than 45% in WI) |
| Dam Length | 650 ft |
| Dam Type | Gravity |
| Max Storage | 1.1M acre-ft |
| Normal Storage | 700.0K acre-ft |
| Surface Area | 137,708 acres |
| Drainage Area | 6,124 sq mi |
| Max Discharge | 24,000 cfs |
| Year Completed | 1881 (145 years old) |
| NID ID | WI00647 |
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
Neenah Paper
Private
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Low Hazard 11 ftFrequently Asked Questions
What is the hazard classification of Neenah?
Neenah 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 Neenah?
Neenah is owned by Neenah Paper (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Neenah built?
Neenah was completed in 1881, making it 145 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 Neenah?
Neenah serves the following purposes: Flood Risk Reduction, Recreation. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.
How tall is Neenah?
Neenah has a dam height of 15 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 Neenah last inspected?
Neenah was last inspected on August 7, 2020. Inspection dates indicate when a formal review occurred, not the results of that inspection.