Entrance Lake Dam
Key Takeaway
Entrance Lake Dam is classified as high hazard in South Carolina. It was completed in 1969 and is 57 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 | 22 ft (taller than 52.9% in SC) |
| Max Storage | 112 acre-ft |
| Normal Storage | 44 acre-ft |
| Surface Area | 7 acres |
| Year Completed | 1969 (57 years old) |
| NID ID | SC01635 |
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
SPRING VALLEY HOMEOWNERS ASSOCIATION
Private
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High Hazard 14 ftFrequently Asked Questions
What is the hazard classification of Entrance Lake Dam?
Entrance Lake 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 Entrance Lake Dam?
Entrance Lake Dam is owned by SPRING VALLEY HOMEOWNERS ASSOCIATION (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Entrance Lake Dam built?
Entrance Lake Dam was completed in 1969, making it 57 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 Entrance Lake Dam?
Entrance Lake 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 Entrance Lake Dam?
Entrance Lake Dam has a dam height of 22 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 Entrance Lake Dam last inspected?
Entrance Lake Dam was last inspected on November 21, 2022. Inspection dates indicate when a formal review occurred, not the results of that inspection.