Moon Lake Dam

TR-SOUTH TYGER RIVER· Greenville, South Carolina· Built 1969· 22 ft tall
High Hazard Fire Protection Stock Or Small Fish Pond Recreation Private

Key Takeaway

Moon Lake Dam is classified as high hazard in South Carolina. It was completed in 1969 and is 57 years old. Its primary use is fire protection. 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 Storage74 acre-ft
Normal Storage53 acre-ft
Surface Area7 acres
Year Completed1969 (57 years old)
NID IDSC01800

Safety Information

High Hazard

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?

Emergency Action Plan: Yes
Last Inspection: March 24, 2023
State Regulated: Yes
Regulatory Agency: SC DHEC

Ownership

GAP CREEK GROUP LLC

Private

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Lake Cunningham Dam

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Apalache Millpond Dam

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Lyman Lake Dam

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Re Collins Dam

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J E Nodine Dam 2

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Frank Mcmakin Dam

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Lancaster-Boone Dam

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Lake Robinson Dam

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Frequently Asked Questions

What is the hazard classification of Moon Lake Dam?

Moon 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 Moon Lake Dam?

Moon Lake Dam is owned by GAP CREEK GROUP LLC (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.

When was Moon Lake Dam built?

Moon 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 Moon Lake Dam?

Moon Lake Dam serves the following purposes: Fire Protection, Stock, Or Small Fish Pond, Recreation. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.

How tall is Moon Lake Dam?

Moon 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 Moon Lake Dam last inspected?

Moon Lake Dam was last inspected on March 24, 2023. Inspection dates indicate when a formal review occurred, not the results of that inspection.

Data from the National Inventory of Dams (NID) maintained by the US Army Corps of Engineers. Dam conditions may have changed since the last update. This site is not affiliated with USACE. Do not use for emergency planning — contact your local dam safety program.