John Keenan Dam

TR-ALEXANDER CREEK· Spartanburg, South Carolina· Built 1969· 23 ft tall
Significant Hazard Recreation Private

Key Takeaway

John Keenan Dam is classified as significant hazard in South Carolina. It was completed in 1969 and is 57 years old. Its primary use is recreation. Significant hazard means failure could cause economic or environmental damage. Learn more.

Physical Details

Dam Height 23 ft (taller than 56.3% in SC)
Max Storage62 acre-ft
Normal Storage40 acre-ft
Surface Area5 acres
Year Completed1969 (57 years old)
NID IDSC02226

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: February 11, 2022
State Regulated: Yes
Regulatory Agency: SC DHEC

Ownership

PATRICIA M AND ARNOLD S SHEDLOW

Private

Nearby Dams

Frequently Asked Questions

What is the hazard classification of John Keenan Dam?

John Keenan 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 John Keenan Dam?

John Keenan Dam is owned by PATRICIA M AND ARNOLD S SHEDLOW (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.

When was John Keenan Dam built?

John Keenan 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 John Keenan Dam?

John Keenan 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 John Keenan Dam?

John Keenan Dam has a dam height of 23 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 John Keenan Dam last inspected?

John Keenan Dam was last inspected on February 11, 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.