Nfa A491 over Johnson Branch
GoodMaury County, Tennessee · 0.5 M NE SR50 · Structure no. 600A4910001
- Built
- 1980
- 45 years old
- Condition
- Good
- inspected May 2024
- Type
- Culvert
- Concrete Continuous
- Length
- 26 ft
- 2 main spans
- Daily traffic
- 60
- 2020 count
- Owner
- County
- County Highway Agency
About this bridge
Nfa A491 over Johnson Branch is a concrete continuous culvert carrying Nfa A491 over Johnson Branch in Maury County, Tennessee. It was built in 1980, so it is 45 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 60 vehicles a day, roughly 2% of them trucks, projected to reach 96 by 2042. The structure is 26 ft (7.9 m) long and 29 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 A491 over Johnson Branch built?
It was built in 1980, making it 45 years old in 2025.
What condition is Nfa A491 over Johnson Branch 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 May 2024.
How much traffic does Nfa A491 over Johnson Branch carry?
About 60 vehicles per day (2020 count), of which roughly 2% are trucks.
How long is Nfa A491 over Johnson Branch?
The structure is 26 ft (7.9 m) long with a longest span of 12 ft (3.7 m) and a deck 29 ft wide.
Who owns Nfa A491 over Johnson Branch?
It is owned by the County Highway Agency.