Mayo
Key Takeaway
Mayo is classified as low hazard in North Carolina. It was completed in 1898 and is 128 years old. Its primary use is hydroelectric.
Physical Details
| Dam Height | 14 ft (taller than 13.6% in NC) |
| Dam Length | 591 ft |
| Dam Type | Gravity |
| Max Storage | 85 acre-ft |
| Normal Storage | 85 acre-ft |
| Surface Area | 10 acres |
| Drainage Area | 320 sq mi |
| Max Discharge | 19,789 cfs |
| Year Completed | 1898 (128 years old) |
| NID ID | NC03907 |
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
H & H Properties
Private
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Low HazardFrequently Asked Questions
What is the hazard classification of Mayo?
Mayo 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 Mayo?
Mayo is owned by H & H Properties (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Mayo built?
Mayo was completed in 1898, making it 128 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 Mayo?
Mayo serves the following purposes: Hydroelectric, Water Supply. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.
How tall is Mayo?
Mayo has a dam height of 14 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 Mayo last inspected?
Mayo was last inspected on February 22, 2023. Inspection dates indicate when a formal review occurred, not the results of that inspection.