Nfa 1001 (sa 9418) over Dobbins Branch
GoodWilliamson County, Tennessee · 4.4 MI SW JCT SR46&SR96 · Structure no. 94010010007
- Built
- 1980
- 45 years old
- Condition
- Good
- inspected May 2023
- Type
- Culvert
- Concrete
- Length
- 28 ft
- 1 main span
- Daily traffic
- 496
- 2021 count
- Owner
- County
- County Highway Agency
About this bridge
Nfa 1001 (sa 9418) over Dobbins Branch is a concrete culvert carrying Nfa 1001 (sa 9418) over Dobbins Branch in Williamson County, Tennessee. It was built in 1980, so it is 45 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 496 vehicles a day, roughly 3% of them trucks, projected to reach 528 by 2041. The structure is 28 ft (8.5 m) long and 28 ft wide. If it were closed, the detour would be 5 mi (8 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 1001 (sa 9418) over Dobbins Branch built?
It was built in 1980, making it 45 years old in 2025.
What condition is Nfa 1001 (sa 9418) over Dobbins 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 May 2023.
How much traffic does Nfa 1001 (sa 9418) over Dobbins Branch carry?
About 496 vehicles per day (2021 count), of which roughly 3% are trucks.
How long is Nfa 1001 (sa 9418) over Dobbins Branch?
The structure is 28 ft (8.5 m) long with a longest span of 18 ft (5.5 m) and a deck 28 ft wide.
Who owns Nfa 1001 (sa 9418) over Dobbins Branch?
It is owned by the County Highway Agency.