Nfa A278 over I40
FairRoane County, Tennessee · E of SR 58 Exit · Structure no. 73I00400025
- Built
- 1970
- 55 years old
- Condition
- Fair
- inspected September 2024
- Type
- Tee Beam
- Concrete Continuous
- Length
- 265 ft
- 4 main spans
- Daily traffic
- 200
- 2020 count
- Owner
- State
- State Highway Agency
About this bridge
Nfa A278 over I40 is a concrete continuous tee beam carrying Nfa A278 over I40 in Roane County, Tennessee. It was built in 1970, so it is 55 years old, older than the Tennessee average of 47.4 years.
The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.
It carries about 200 vehicles a day, roughly 2% of them trucks, projected to reach 320 by 2040. The structure is 265 ft (80.8 m) long and 34 ft wide. If it were closed, the detour would be 8.1 mi (13 km).
Location
Open in Google MapsCondition and inspection
The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 6 Satisfactory | Structural elements show some minor deterioration. |
| Superstructure | 7 Good | Some minor problems. |
| Substructure | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Nfa A278 over I40 built?
It was built in 1970, making it 55 years old in 2025.
What condition is Nfa A278 over I40 in?
The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in September 2024.
How much traffic does Nfa A278 over I40 carry?
About 200 vehicles per day (2020 count), of which roughly 2% are trucks.
How long is Nfa A278 over I40?
The structure is 265 ft (80.8 m) long with a longest span of 76 ft (23.2 m) and a deck 34 ft wide.
Who owns Nfa A278 over I40?
It is owned by the State Highway Agency.