Jacksonville South Storage Lagoon Dam

Onslow, North Carolina· Built 2009· Earth·
High Hazard Flood Risk Reduction Other Local Government

Key Takeaway

Jacksonville South Storage Lagoon Dam is classified as high hazard in North Carolina. It was completed in 2009 and is 17 years old. Its primary use is flood risk reduction. 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 TypeEarth
Year Completed2009 (17 years old)
NID IDNC06070

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 10, 2022
State Regulated: Yes
Regulatory Agency: NCDEQ, DEMLR, Dam Safety Program

Ownership

City of Jacksonville

Local Government

Nearby Dams

Frequently Asked Questions

What is the hazard classification of Jacksonville South Storage Lagoon Dam?

Jacksonville South Storage Lagoon 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 Jacksonville South Storage Lagoon Dam?

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

When was Jacksonville South Storage Lagoon Dam built?

Jacksonville South Storage Lagoon Dam was completed in 2009, making it 17 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 Jacksonville South Storage Lagoon Dam?

Jacksonville South Storage Lagoon Dam serves the following purposes: Flood Risk Reduction, Other. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.

When was Jacksonville South Storage Lagoon Dam last inspected?

Jacksonville South Storage Lagoon Dam was last inspected on March 10, 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.