Nfa A550 over Grass Creek
GoodObion County, Tennessee · 3.1 MI NW JCT SR5&SR89 · Structure no. 660A5500001
- Built
- 1978
- 47 years old, rebuilt 2012
- Condition
- Good
- inspected March 2023
- Type
- Box Beam or Girders - Multiple
- Prestressed Concrete
- Length
- 40 ft
- 1 main span
- Daily traffic
- 40
- 2020 count
- Owner
- County
- County Highway Agency
About this bridge
Nfa A550 over Grass Creek is a prestressed concrete box beam or girders - multiple carrying Nfa A550 over Grass Creek in Obion County, Tennessee. It was built in 1978 and reconstructed in 2012, so it is 47 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 40 vehicles a day, roughly 5% of them trucks, projected to reach 64 by 2041. The structure is 40 ft (12.2 m) long and 25 ft wide. If it were closed, the detour would be 6.2 mi (10 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 |
|---|---|---|
| Deck | 7 Good | Some minor problems. |
| Superstructure | 7 Good | Some minor problems. |
| Substructure | 7 Good | Some minor problems. |
| Channel and channel protection | 6 Satisfactory | Structural elements show some minor deterioration. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Nfa A550 over Grass Creek built?
It was built in 1978, making it 47 years old in 2025. It was reconstructed in 2012.
What condition is Nfa A550 over Grass 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 March 2023.
How much traffic does Nfa A550 over Grass Creek carry?
About 40 vehicles per day (2020 count), of which roughly 5% are trucks.
How long is Nfa A550 over Grass Creek?
The structure is 40 ft (12.2 m) long with a longest span of 40 ft (12.2 m) and a deck 25 ft wide.
Who owns Nfa A550 over Grass Creek?
It is owned by the County Highway Agency.