Logan Martin

Coosa· St. Clair, Alabama· Built 1964· Gravity· 97 ft tall

Key Takeaway

Logan Martin is classified as high hazard in Alabama. It was completed in 1964 and is 62 years old. Its primary use is hydroelectric. 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 97 ft (taller than 98.4% in AL)
Dam Length6,076 ft
Dam TypeGravity
Max Storage650.0K acre-ft
Normal Storage273.0K acre-ft
Surface Area15,263 acres
Drainage Area7,700 sq mi
Max Discharge167,000 cfs
Year Completed1964 (62 years old)
NID IDAL01417

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: August 24, 2022
State Regulated: No

Ownership

Alabama Power Company

Public Utility

Nearby Dams

Frequently Asked Questions

What is the hazard classification of Logan Martin?

Logan Martin 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 Logan Martin?

Logan Martin is owned by Alabama Power Company (Public Utility). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.

When was Logan Martin built?

Logan Martin was completed in 1964, making it 62 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 Logan Martin?

Logan Martin serves the following purposes: Hydroelectric, Recreation, Water Supply, Flood Risk Reduction. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.

How tall is Logan Martin?

Logan Martin has a dam height of 97 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 Logan Martin last inspected?

Logan Martin was last inspected on August 24, 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.