Lake Wilson Dam

Toisnot Swamp· Wilson, North Carolina· Built 1960· Earth·
High Hazard Water Supply Local Government

Key Takeaway

Lake Wilson Dam is classified as high hazard in North Carolina. It was completed in 1960 and is 66 years old. Its primary use is water supply. 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 Length431 ft
Dam TypeEarth
Max Storage998 acre-ft
Normal Storage487 acre-ft
Surface Area81 acres
Drainage Area25,560 sq mi
Max Discharge2,229 cfs
Year Completed1960 (66 years old)
NID IDNC00894

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 2, 2023
State Regulated: Yes
Regulatory Agency: NCDEQ, DEMLR, Dam Safety Program

Ownership

City of Wilson

Local Government

Nearby Dams

Frequently Asked Questions

What is the hazard classification of Lake Wilson Dam?

Lake Wilson 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 Lake Wilson Dam?

Lake Wilson Dam is owned by City of Wilson (Local Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.

When was Lake Wilson Dam built?

Lake Wilson Dam was completed in 1960, making it 66 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 Lake Wilson Dam?

Lake Wilson Dam serves the following purposes: Water Supply. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.

When was Lake Wilson Dam last inspected?

Lake Wilson Dam was last inspected on March 2, 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.