Nfa A256 over Mill Branch
GoodRobertson County, Tennessee · 1.6 MI S JCT I65&SR76 · Structure no. 740A2560001
- Built
- 1960
- 65 years old
- Condition
- Good
- inspected April 2024
- Type
- Culvert
- Concrete Continuous
- Length
- 38 ft
- 2 main spans
- Daily traffic
- 933
- 2021 count
- Owner
- County
- County Highway Agency
About this bridge
Nfa A256 over Mill Branch is a concrete continuous culvert carrying Nfa A256 over Mill Branch in Robertson County, Tennessee. It was built in 1960, so it is 65 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 933 vehicles a day, roughly 3% of them trucks, projected to reach 1,493 by 2042. The structure is 38 ft (11.6 m) long and 24 ft wide. If it were closed, the detour would be 6.8 mi (11 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 A256 over Mill Branch built?
It was built in 1960, making it 65 years old in 2025.
What condition is Nfa A256 over Mill 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 April 2024.
How much traffic does Nfa A256 over Mill Branch carry?
About 933 vehicles per day (2021 count), of which roughly 3% are trucks.
How long is Nfa A256 over Mill Branch?
The structure is 38 ft (11.6 m) long with a longest span of 15 ft (4.6 m) and a deck 24 ft wide.
Who owns Nfa A256 over Mill Branch?
It is owned by the County Highway Agency.