Clemons Upper Dam

MCGINNEY CREEK· Williamsburg, South Carolina· Built 1955· 8 ft tall
Significant Hazard Recreation Private

Key Takeaway

Clemons Upper Dam is classified as significant hazard in South Carolina. It was completed in 1955 and is 71 years old. Its primary use is recreation. Significant hazard means failure could cause economic or environmental damage. Learn more.

Physical Details

Dam Height 8 ft (taller than 1.5% in SC)
Max Storage490 acre-ft
Normal Storage146 acre-ft
Surface Area36 acres
Year Completed1955 (71 years old)
NID IDSC02659

Safety Information

Significant Hazard

No probable loss of human life, but can cause economic loss, environmental damage, or disruption of lifeline facilities.

Hazard potential describes downstream consequences of failure, not the dam's current condition. What does this mean?

Emergency Action Plan: Yes
Last Inspection: June 21, 2022
State Regulated: Yes
Regulatory Agency: SC DHEC

Ownership

PONY ACRES LLC

Private

Nearby Dams

Frequently Asked Questions

What is the hazard classification of Clemons Upper Dam?

Clemons Upper Dam is classified as Significant Hazard. No probable loss of human life, but can cause economic loss, environmental damage, or disruption of lifeline facilities. This classification refers to the potential downstream consequences of a failure, not the dam's current structural condition.

Who owns and operates Clemons Upper Dam?

Clemons Upper Dam is owned by PONY ACRES LLC (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.

When was Clemons Upper Dam built?

Clemons Upper 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 Clemons Upper Dam?

Clemons 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 Clemons Upper Dam?

Clemons Upper Dam has a dam height of 8 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 Clemons Upper Dam last inspected?

Clemons Upper Dam was last inspected on June 21, 2022. 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.