Aberdeen Lock and Dam

TOMBIGBEE· Monroe, Mississippi· Built 1984· Gravity·
Significant Hazard Navigation Recreation Federal Government

Key Takeaway

Aberdeen Lock and Dam is classified as significant hazard in Mississippi. It was completed in 1984 and is 42 years old. Its primary use is navigation. Significant hazard means failure could cause economic or environmental damage. Learn more.

Physical Details

Dam Length500 ft
Dam TypeGravity
Max Storage31.6K acre-ft
Normal Storage31.6K acre-ft
Surface Area4,121 acres
Drainage Area2,047 sq mi
Max Discharge349,400 cfs
Year Completed1984 (42 years old)
NID IDMS03057

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: May 4, 2020
State Regulated: Yes
Regulatory Agency: MS DEPARTMENT OF ENVIRONMENTAL QUALITY

Ownership

USACE - Mobile District

Federal Government

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Frequently Asked Questions

What is the hazard classification of Aberdeen Lock and Dam?

Aberdeen Lock and 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 Aberdeen Lock and Dam?

Aberdeen Lock and Dam is owned by USACE - Mobile District (Federal Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.

When was Aberdeen Lock and Dam built?

Aberdeen Lock and Dam was completed in 1984, making it 42 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 Aberdeen Lock and Dam?

Aberdeen Lock and Dam serves the following purposes: Navigation, Recreation. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.

When was Aberdeen Lock and Dam last inspected?

Aberdeen Lock and Dam was last inspected on May 4, 2020. 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.