J J Madison Lake
Key Takeaway
J J Madison Lake is classified as low hazard in Tennessee. It was completed in 1972 and is 54 years old.
Physical Details
| Dam Length | 845 ft |
| Dam Type | Earth |
| Max Storage | 670 acre-ft |
| Normal Storage | 499 acre-ft |
| Surface Area | 34 acres |
| Drainage Area | 0 sq mi |
| Year Completed | 1972 (54 years old) |
| NID ID | TN10903 |
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
MCNAIRY ASSOCIATES
Private
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Low HazardFrequently Asked Questions
What is the hazard classification of J J Madison Lake?
J J Madison Lake 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 J J Madison Lake?
J J Madison Lake is owned by MCNAIRY ASSOCIATES (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was J J Madison Lake built?
J J Madison Lake was completed in 1972, making it 54 years old. Many U.S. dams were built between the 1930s and 1970s during a period of major infrastructure investment.
When was J J Madison Lake last inspected?
J J Madison Lake was last inspected on April 12, 2018. Inspection dates indicate when a formal review occurred, not the results of that inspection.