Congaree Construction Upper Dam
Key Takeaway
Congaree Construction Upper Dam is classified as high hazard in South Carolina. It was completed in 1966 and is 60 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 | 43 ft (taller than 94.1% in SC) |
| Max Storage | 368 acre-ft |
| Normal Storage | 276 acre-ft |
| Surface Area | 24 acres |
| Year Completed | 1966 (60 years old) |
| NID ID | SC00082 |
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
JOHN C GWINN JR
Private
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Low Hazard 22 ftFrequently Asked Questions
What is the hazard classification of Congaree Construction Upper Dam?
Congaree Construction Upper 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 Congaree Construction Upper Dam?
Congaree Construction Upper Dam is owned by JOHN C GWINN JR (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Congaree Construction Upper Dam built?
Congaree Construction Upper Dam was completed in 1966, making it 60 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 Congaree Construction Upper Dam?
Congaree Construction Upper 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 Congaree Construction Upper Dam?
Congaree Construction Upper Dam has a dam height of 43 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 Congaree Construction Upper Dam last inspected?
Congaree Construction Upper Dam was last inspected on March 31, 2022. Inspection dates indicate when a formal review occurred, not the results of that inspection.