Nfa A390 over Branch
GoodWilliamson County, Tennessee · 3.6 MI SE JCT SR46&SR100 · Structure no. 940A3900005
- Built
- 1988
- 37 years old
- Condition
- Good
- inspected June 2023
- Type
- Culvert
- Concrete Continuous
- Length
- 34 ft
- 2 main spans
- Daily traffic
- 400
- 2020 count
- Owner
- County
- County Highway Agency
About this bridge
Nfa A390 over Branch is a concrete continuous culvert carrying Nfa A390 over Branch in Williamson County, Tennessee. It was built in 1988, so it is 37 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 400 vehicles a day, roughly 2% of them trucks, projected to reach 640 by 2039. The structure is 34 ft (10.4 m) long and 31 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 | 6 Satisfactory | Structural elements show some minor deterioration. |
| Culvert | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Nfa A390 over Branch built?
It was built in 1988, making it 37 years old in 2025.
What condition is Nfa A390 over 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 June 2023.
How much traffic does Nfa A390 over Branch carry?
About 400 vehicles per day (2020 count), of which roughly 2% are trucks.
How long is Nfa A390 over Branch?
The structure is 34 ft (10.4 m) long with a longest span of 15 ft (4.6 m) and a deck 31 ft wide.
Who owns Nfa A390 over Branch?
It is owned by the County Highway Agency.