Nfa 851 (sa 7407) over Sulphur Fork Creek
GoodRobertson County, Tennessee · 4.5 MI NW JCT SR49&SR257 · Structure no. 74S62780001
- Built
- 1960
- 65 years old, rebuilt 2015
- Condition
- Good
- inspected May 2024
- Type
- Box Beam or Girders - Multiple
- Prestressed Concrete
- Length
- 282 ft
- 5 main spans
- Daily traffic
- 669
- 2021 count
- Owner
- County
- County Highway Agency
About this bridge
Nfa 851 (sa 7407) over Sulphur Fork Creek is a prestressed concrete box beam or girders - multiple carrying Nfa 851 (sa 7407) over Sulphur Fork Creek in Robertson County, Tennessee. It was built in 1960 and reconstructed in 2015, so it is 65 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 669 vehicles a day, roughly 3% of them trucks, projected to reach 992 by 2040. The structure is 282 ft (86 m) long and 30 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 |
|---|---|---|
| Deck | 8 Very Good | No problems noted. |
| Superstructure | 8 Very Good | No problems noted. |
| Substructure | 7 Good | Some minor problems. |
| Channel and channel protection | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Nfa 851 (sa 7407) over Sulphur Fork Creek built?
It was built in 1960, making it 65 years old in 2025. It was reconstructed in 2015.
What condition is Nfa 851 (sa 7407) over Sulphur Fork 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 May 2024.
How much traffic does Nfa 851 (sa 7407) over Sulphur Fork Creek carry?
About 669 vehicles per day (2021 count), of which roughly 3% are trucks.
How long is Nfa 851 (sa 7407) over Sulphur Fork Creek?
The structure is 282 ft (86 m) long with a longest span of 62 ft (18.9 m) and a deck 30 ft wide.
Who owns Nfa 851 (sa 7407) over Sulphur Fork Creek?
It is owned by the County Highway Agency.