Nfa A512 over I81
GoodHamblen County, Tennessee · Near Morristown · Structure no. 32I00810023
- Built
- 1967
- 58 years old
- Condition
- Good
- inspected March 2024
- Type
- Frame
- Steel Continuous
- Length
- 310 ft
- 2 main spans
- Daily traffic
- 100
- 2020 count
- Owner
- State
- State Highway Agency
About this bridge
Nfa A512 over I81 is a steel continuous frame carrying Nfa A512 over I81 in Hamblen County, Tennessee. It was built in 1967, so it is 58 years old, older than the Tennessee average of 47.4 years.
The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.
It carries about 100 vehicles a day, roughly 2% of them trucks, projected to reach 160 by 2042. The structure is 310 ft (94.5 m) long and 33 ft wide. If it were closed, the detour would be 8.1 mi (13 km).
Location
Open in Google MapsCondition and inspection
All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 7 Good | Some minor problems. |
| 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 A512 over I81 built?
It was built in 1967, making it 58 years old in 2025.
What condition is Nfa A512 over I81 in?
The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in March 2024.
How much traffic does Nfa A512 over I81 carry?
About 100 vehicles per day (2020 count), of which roughly 2% are trucks.
How long is Nfa A512 over I81?
The structure is 310 ft (94.5 m) long with a longest span of 158 ft (48.3 m) and a deck 33 ft wide.
Who owns Nfa A512 over I81?
It is owned by the State Highway Agency.