Allen Retention Basin Dam
Key Takeaway
Allen Retention Basin Dam is classified as high hazard in North Carolina. It was completed in 2018 and is 8 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 Length | 510 ft |
| Dam Type | Concrete |
| Max Storage | 89 acre-ft |
| Normal Storage | 43 acre-ft |
| Surface Area | 8 acres |
| Drainage Area | 0 sq mi |
| Max Discharge | 48 cfs |
| Year Completed | 2018 (8 years old) |
| NID ID | NC06200 |
Safety Information
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?
Ownership
Duke Energy Corporation
Public Utility
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Low HazardFrequently Asked Questions
What is the hazard classification of Allen Retention Basin Dam?
Allen Retention Basin 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 Allen Retention Basin Dam?
Allen Retention Basin Dam is owned by Duke Energy Corporation (Public Utility). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Allen Retention Basin Dam built?
Allen Retention Basin Dam was completed in 2018, making it 8 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 Allen Retention Basin Dam?
Allen Retention Basin Dam serves the following purposes: Flood Risk Reduction. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.
When was Allen Retention Basin Dam last inspected?
Allen Retention Basin Dam was last inspected on September 28, 2022. Inspection dates indicate when a formal review occurred, not the results of that inspection.