John Amos Flyash Dam
Key Takeaway
John Amos Flyash Dam is classified as high hazard in West Virginia. It was completed in 1978 and is 48 years old. Its primary use is tailings. 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 | 223 ft (taller than 92.3% in WV) |
| Dam Length | 1,977 ft |
| Dam Type | Rockfill |
| Max Storage | 11.2K acre-ft |
| Normal Storage | 10.0K acre-ft |
| Surface Area | 180 acres |
| Drainage Area | 1 sq mi |
| Year Completed | 1978 (48 years old) |
| NID ID | WV07911 |
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
APPALACHIAN POWER COMPANY
Public Utility
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Significant Hazard 19 ftFrequently Asked Questions
What is the hazard classification of John Amos Flyash Dam?
John Amos Flyash 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 John Amos Flyash Dam?
John Amos Flyash Dam is owned by APPALACHIAN POWER COMPANY (Public Utility). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was John Amos Flyash Dam built?
John Amos Flyash Dam was completed in 1978, making it 48 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 John Amos Flyash Dam?
John Amos Flyash Dam serves the following purposes: Tailings. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.
How tall is John Amos Flyash Dam?
John Amos Flyash Dam has a dam height of 223 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 John Amos Flyash Dam last inspected?
John Amos Flyash Dam was last inspected on May 17, 2017. Inspection dates indicate when a formal review occurred, not the results of that inspection.