Columbia
Key Takeaway
Columbia is classified as significant hazard in Tennessee. It was completed in 1920 and is 106 years old. Its primary use is water supply. Significant hazard means failure could cause economic or environmental damage. Learn more.
Physical Details
| Dam Length | 578 ft |
| Dam Type | Concrete |
| Max Storage | 700 acre-ft |
| Normal Storage | 550 acre-ft |
| Surface Area | 44 acres |
| Drainage Area | 2 sq mi |
| Year Completed | 1920 (106 years old) |
| NID ID | TN11935 |
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
COLUMBIA POWER & WATER SYSTEMS
Local Government
Nearby Dams
Frequently Asked Questions
What is the hazard classification of Columbia?
Columbia 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 Columbia?
Columbia is owned by COLUMBIA POWER & WATER SYSTEMS (Local Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Columbia built?
Columbia was completed in 1920, making it 106 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 Columbia?
Columbia serves the following purposes: Water Supply. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.
When was Columbia last inspected?
Columbia was last inspected on September 5, 2019. Inspection dates indicate when a formal review occurred, not the results of that inspection.