Nfa A346 over Roan Creek
GoodJohnson County, Tennessee · W Off US421 near State Li · Structure no. 460A3460001
- Built
- 1998
- 27 years old
- Condition
- Good
- inspected April 2024
- Type
- Culvert
- Concrete
- Length
- 31 ft
- 2 main spans
- Daily traffic
- 20
- 2020 count
- Owner
- County
- County Highway Agency
About this bridge
Nfa A346 over Roan Creek is a concrete culvert carrying Nfa A346 over Roan Creek in Johnson 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 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 20 vehicles a day, roughly 5% of them trucks, projected to reach 32 by 2040. The structure is 31 ft (9.4 m) long and 32 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 | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Nfa A346 over Roan Creek built?
It was built in 1998, making it 27 years old in 2025.
What condition is Nfa A346 over Roan 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 April 2024.
How much traffic does Nfa A346 over Roan Creek carry?
About 20 vehicles per day (2020 count), of which roughly 5% are trucks.
How long is Nfa A346 over Roan Creek?
The structure is 31 ft (9.4 m) long with a longest span of 10 ft (3 m) and a deck 32 ft wide.
Who owns Nfa A346 over Roan Creek?
It is owned by the County Highway Agency.