Nfa 1538 (sa 6620) over Walnut Grove Branch
GoodPosted for loadObion County, Tennessee · 2.7 MI SE JCT SR43&SR215 · Structure no. 66015380009
- Built
- 2006
- 19 years old
- Condition
- Good
- inspected March 2023
- Type
- Box Beam or Girders - Multiple
- Prestressed Concrete
- Length
- 42 ft
- 1 main span
- Daily traffic
- 409
- 2021 count
- Owner
- County
- County Highway Agency
About this bridge
Nfa 1538 (sa 6620) over Walnut Grove Branch is a prestressed concrete box beam or girders - multiple carrying Nfa 1538 (sa 6620) over Walnut Grove Branch in Obion County, Tennessee. It was built in 2006, so it is 19 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. Its operating status is: posted for load restriction.
It carries about 409 vehicles a day, roughly 3% of them trucks, projected to reach 384 by 2042. The structure is 42 ft (12.8 m) long and 24 ft wide. If it were closed, the detour would be 3.7 mi (6 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 | 8 Very Good | No problems noted. |
| Superstructure | 8 Very Good | No problems noted. |
| 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 1538 (sa 6620) over Walnut Grove Branch built?
It was built in 2006, making it 19 years old in 2025.
What condition is Nfa 1538 (sa 6620) over Walnut Grove 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 March 2023.
How much traffic does Nfa 1538 (sa 6620) over Walnut Grove Branch carry?
About 409 vehicles per day (2021 count), of which roughly 3% are trucks.
How long is Nfa 1538 (sa 6620) over Walnut Grove Branch?
The structure is 42 ft (12.8 m) long with a longest span of 42 ft (12.8 m) and a deck 24 ft wide.
Who owns Nfa 1538 (sa 6620) over Walnut Grove Branch?
It is owned by the County Highway Agency.