Nfa A178 over Smith Branch
FairTipton County, Tennessee · Nelson Road · Structure no. 840A1780003
- Built
- 1988
- 37 years old
- Condition
- Fair
- inspected March 2024
- Type
- Culvert
- Concrete Continuous
- Length
- 34 ft
- 2 main spans
- Daily traffic
- 130
- 2020 count
- Owner
- County
- County Highway Agency
About this bridge
Nfa A178 over Smith Branch is a concrete continuous culvert carrying Nfa A178 over Smith Branch in Tipton 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 fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.
It carries about 130 vehicles a day, roughly 2% of them trucks, projected to reach 208 by 2042. The structure is 34 ft (10.3 m) long and 26 ft wide. If it were closed, the detour would be 6.2 mi (10 km).
Location
Open in Google MapsCondition and inspection
The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.
| Component | Rating | Meaning |
|---|---|---|
| Channel and channel protection | 6 Satisfactory | Structural elements show some minor deterioration. |
| Culvert | 6 Satisfactory | Structural elements show some minor deterioration. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Nfa A178 over Smith Branch built?
It was built in 1988, making it 37 years old in 2025.
What condition is Nfa A178 over Smith Branch in?
The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in March 2024.
How much traffic does Nfa A178 over Smith Branch carry?
About 130 vehicles per day (2020 count), of which roughly 2% are trucks.
How long is Nfa A178 over Smith Branch?
The structure is 34 ft (10.3 m) long with a longest span of 15 ft (4.6 m) and a deck 26 ft wide.
Who owns Nfa A178 over Smith Branch?
It is owned by the County Highway Agency.