Hannas Lake Dam
Key Takeaway
Hannas Lake Dam is classified as high hazard in North Carolina. It was completed in 1950 and is 76 years old. Its primary use is recreation. 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 | 770 ft |
| Dam Type | Earth |
| Max Storage | 233 acre-ft |
| Normal Storage | 194 acre-ft |
| Surface Area | 20 acres |
| Drainage Area | 3,930 sq mi |
| Max Discharge | 495 cfs |
| Year Completed | 1950 (76 years old) |
| Year Modified | 2009 |
| NID ID | NC01096 |
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
Jennifer Graham
Private
Nearby Dams
Mclamb Lake Dam
Harnett, NC
High HazardJonesboro Road Dam
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Significant HazardHayner Lake Dam
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Low Hazard13th Street Dam
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High HazardGodwin Lake Dam
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Low HazardJernigan Lake Dam
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Low HazardRhodes Pond Dam
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High HazardParker Lagoon Dam
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Significant HazardFrequently Asked Questions
What is the hazard classification of Hannas Lake Dam?
Hannas Lake 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 Hannas Lake Dam?
Hannas Lake Dam is owned by Jennifer Graham (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Hannas Lake Dam built?
Hannas Lake Dam was completed in 1950, making it 76 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 Hannas Lake Dam?
Hannas Lake Dam serves the following purposes: Recreation. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.
When was Hannas Lake Dam last inspected?
Hannas Lake Dam was last inspected on February 2, 2023. Inspection dates indicate when a formal review occurred, not the results of that inspection.