Plattsmouth 12-A
Key Takeaway
Plattsmouth 12-A is classified as high hazard in Nebraska. It was completed in 1962 and is 64 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 | 32 ft (taller than 73.9% in NE) |
| Dam Length | 642 ft |
| Dam Type | Earth |
| Max Storage | 76 acre-ft |
| Normal Storage | 17 acre-ft |
| Surface Area | 4 acres |
| Drainage Area | 0 sq mi |
| Max Discharge | 447 cfs |
| Year Completed | 1962 (64 years old) |
| NID ID | NE00099 |
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 Plattsmouth
Local Government
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Low Hazard 30 ftFrequently Asked Questions
What is the hazard classification of Plattsmouth 12-A?
Plattsmouth 12-A 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 Plattsmouth 12-A?
Plattsmouth 12-A is owned by City of Plattsmouth (Local Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Plattsmouth 12-A built?
Plattsmouth 12-A was completed in 1962, making it 64 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 Plattsmouth 12-A?
Plattsmouth 12-A serves the following purposes: Flood Risk Reduction. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.
How tall is Plattsmouth 12-A?
Plattsmouth 12-A 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 Plattsmouth 12-A last inspected?
Plattsmouth 12-A was last inspected on October 18, 2023. Inspection dates indicate when a formal review occurred, not the results of that inspection.