Lake Cynthia Dam
Key Takeaway
Lake Cynthia Dam is classified as high hazard in South Carolina. It was completed in 1960 and is 66 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 | 11 ft (taller than 8.3% in SC) |
| Max Storage | 326 acre-ft |
| Normal Storage | 163 acre-ft |
| Surface Area | 41 acres |
| Year Completed | 1960 (66 years old) |
| NID ID | SC01681 |
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
BETTY JOYE JONES NEWMAN;JOHN M JONES;WILLIAM L JONES
Private
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What is the hazard classification of Lake Cynthia Dam?
Lake Cynthia 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 Lake Cynthia Dam?
Lake Cynthia Dam is owned by BETTY JOYE JONES NEWMAN;JOHN M JONES;WILLIAM L JONES (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Lake Cynthia Dam built?
Lake Cynthia Dam was completed in 1960, making it 66 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 Lake Cynthia Dam?
Lake Cynthia 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 Lake Cynthia Dam?
Lake Cynthia Dam has a dam height of 11 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 Lake Cynthia Dam last inspected?
Lake Cynthia Dam was last inspected on December 13, 2022. Inspection dates indicate when a formal review occurred, not the results of that inspection.