Johnson Creek #4
Key Takeaway
Johnson Creek #4 is classified as significant hazard in Tennessee. It was completed in 1959 and is 67 years old. Its primary use is flood risk reduction. Significant hazard means failure could cause economic or environmental damage. Learn more.
Physical Details
| Dam Length | 1,033 ft |
| Dam Type | Earth |
| Max Storage | 1.4K acre-ft |
| Normal Storage | 263 acre-ft |
| Surface Area | 62 acres |
| Drainage Area | 4 sq mi |
| Year Completed | 1959 (67 years old) |
| Year Modified | 1998 |
| NID ID | TN11306 |
Safety Information
No probable loss of human life, but can cause economic loss, environmental damage, or disruption of lifeline facilities.
Hazard potential describes downstream consequences of failure, not the dam's current condition. What does this mean?
Ownership
DEMENT CONSTRUCTION, ET AL.
Private
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Low HazardFrequently Asked Questions
What is the hazard classification of Johnson Creek #4?
Johnson Creek #4 is classified as Significant Hazard. No probable loss of human life, but can cause economic loss, environmental damage, or disruption of lifeline facilities. This classification refers to the potential downstream consequences of a failure, not the dam's current structural condition.
Who owns and operates Johnson Creek #4?
Johnson Creek #4 is owned by DEMENT CONSTRUCTION, ET AL. (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Johnson Creek #4 built?
Johnson Creek #4 was completed in 1959, making it 67 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 Johnson Creek #4?
Johnson Creek #4 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 Johnson Creek #4 last inspected?
Johnson Creek #4 was last inspected on February 12, 2020. Inspection dates indicate when a formal review occurred, not the results of that inspection.