Nfa 1947 (sa 7420) over Pole Branch
GoodRobertson County, Tennessee · 1.7 MI NW JCT SR11&SR257 · Structure no. 74019470001
- Built
- 1970
- 55 years old, rebuilt 1999
- Condition
- Good
- inspected April 2024
- Type
- Culvert
- Concrete Continuous
- Length
- 45 ft
- 3 main spans
- Daily traffic
- 3,573
- 2021 count
- Owner
- County
- County Highway Agency
About this bridge
Nfa 1947 (sa 7420) over Pole Branch is a concrete continuous culvert carrying Nfa 1947 (sa 7420) over Pole Branch in Robertson County, Tennessee. It was built in 1970 and reconstructed in 1999, so it is 55 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 3,573 vehicles a day, roughly 1% of them trucks, projected to reach 5,717 by 2042. The structure is 45 ft (13.7 m) long and 28 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 |
|---|---|---|
| Channel and channel protection | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Culvert | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Nfa 1947 (sa 7420) over Pole Branch built?
It was built in 1970, making it 55 years old in 2025. It was reconstructed in 1999.
What condition is Nfa 1947 (sa 7420) over Pole 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 1947 (sa 7420) over Pole Branch carry?
About 3,573 vehicles per day (2021 count), of which roughly 1% are trucks.
How long is Nfa 1947 (sa 7420) over Pole Branch?
The structure is 45 ft (13.7 m) long with a longest span of 14 ft (4.3 m) and a deck 28 ft wide.
Who owns Nfa 1947 (sa 7420) over Pole Branch?
It is owned by the County Highway Agency.