Nfa A455 over Martins Creek
GoodUnicoi County, Tennessee · In the City of Erwin · Structure no. 860A4550001
- Built
- 1998
- 27 years old
- Condition
- Good
- inspected July 2024
- Type
- Culvert
- Concrete Continuous
- Length
- 33 ft
- 2 main spans
- Daily traffic
- 250
- 2020 count
- Owner
- City
- City or Municipal Highway Agency
About this bridge
Nfa A455 over Martins Creek is a concrete continuous culvert carrying Nfa A455 over Martins Creek in Unicoi County, Tennessee. It was built in 1998, so it is 27 years old, younger 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 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.
It carries about 250 vehicles a day, roughly 4% of them trucks, projected to reach 400 by 2042. The structure is 33 ft (10.2 m) long and 40 ft wide. If it were closed, the detour would be 123.7 mi (199 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 |
|---|---|---|
| Channel and channel protection | 7 Good | Some minor problems. |
| Culvert | 8 Very Good | No problems noted. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Nfa A455 over Martins Creek built?
It was built in 1998, making it 27 years old in 2025.
What condition is Nfa A455 over Martins Creek 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 July 2024.
How much traffic does Nfa A455 over Martins Creek carry?
About 250 vehicles per day (2020 count), of which roughly 4% are trucks.
How long is Nfa A455 over Martins Creek?
The structure is 33 ft (10.2 m) long with a longest span of 15 ft (4.7 m) and a deck 40 ft wide.
Who owns Nfa A455 over Martins Creek?
It is owned by the City or Municipal Highway Agency.