Lake Johnston Dam
Key Takeaway
Lake Johnston Dam is classified as low hazard in North Carolina. It was completed in 1980 and is 46 years old. Its primary use is recreation.
Physical Details
| Dam Length | 1,500 ft |
| Dam Type | Earth |
| Max Storage | 1.2K acre-ft |
| Normal Storage | 972 acre-ft |
| Surface Area | 90 acres |
| Drainage Area | 932 sq mi |
| Year Completed | 1980 (46 years old) |
| NID ID | NC04143 |
Safety Information
No probable loss of human life and low economic/environmental losses expected.
Hazard potential describes downstream consequences of failure, not the dam's current condition. What does this mean?
Ownership
Deercroft SD Homeowners and Recreation Assc., Inc.
Private
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Low HazardFrequently Asked Questions
What is the hazard classification of Lake Johnston Dam?
Lake Johnston Dam is classified as Low Hazard. No probable loss of human life and low economic/environmental losses expected. This classification refers to the potential downstream consequences of a failure, not the dam's current structural condition.
Who owns and operates Lake Johnston Dam?
Lake Johnston Dam is owned by Deercroft SD Homeowners and Recreation Assc., Inc. (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Lake Johnston Dam built?
Lake Johnston Dam was completed in 1980, making it 46 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 Johnston Dam?
Lake Johnston 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 Lake Johnston Dam last inspected?
Lake Johnston Dam was last inspected on December 14, 2021. Inspection dates indicate when a formal review occurred, not the results of that inspection.