O'Neal Miller Dam
Key Takeaway
O'Neal Miller Dam is classified as high hazard in South Carolina. It was completed in 1955 and is 71 years old. Its primary use is recreation. 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 | 31 ft (taller than 81.4% in SC) |
| Max Storage | 284 acre-ft |
| Normal Storage | 158 acre-ft |
| Surface Area | 13 acres |
| Year Completed | 1955 (71 years old) |
| NID ID | SC00331 |
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
MICHAEL MILLER
Private
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Low Hazard 19 ftFrequently Asked Questions
What is the hazard classification of O'Neal Miller Dam?
O'Neal Miller 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 O'Neal Miller Dam?
O'Neal Miller Dam is owned by MICHAEL MILLER (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was O'Neal Miller Dam built?
O'Neal Miller Dam was completed in 1955, making it 71 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 O'Neal Miller Dam?
O'Neal Miller Dam serves the following purposes: Recreation. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.
How tall is O'Neal Miller Dam?
O'Neal Miller Dam has a dam height of 31 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 O'Neal Miller Dam last inspected?
O'Neal Miller Dam was last inspected on October 12, 2021. Inspection dates indicate when a formal review occurred, not the results of that inspection.