FAS 46 over Harpeth River
PoorPosted for loadWilliamson County, Tennessee · 1.4 M SW JCT SR46&SR106 · Structure no. 94S61480013
- Built
- 1957
- 68 years old, rebuilt 1998
- Condition
- Poor
- inspected February 2023
- Type
- Box Beam or Girders - Multiple
- Prestressed Concrete
- Length
- 218 ft
- 3 main spans
- Daily traffic
- 4,289
- 2021 count
- Owner
- State
- State Highway Agency
About this bridge
FAS 46 over Harpeth River is a prestressed concrete box beam or girders - multiple carrying FAS 46 over Harpeth River in Williamson County, Tennessee. It was built in 1957 and reconstructed in 1998, so it is 68 years old, older than the Tennessee average of 47.4 years.
The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. Its operating status is: posted for load restriction.
It carries about 4,289 vehicles a day, roughly 4% of them trucks, projected to reach 6,862 by 2042. The structure is 218 ft (66.4 m) long and 29 ft wide. If it were closed, the detour would be 16.8 mi (27 km).
Location
Open in Google MapsCondition and inspection
The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Superstructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| Substructure | 4 Poor | Advanced section loss, deterioration, spalling or scour. |
| Channel and channel protection | 4 Poor | Advanced section loss, deterioration, spalling or scour. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was FAS 46 over Harpeth River built?
It was built in 1957, making it 68 years old in 2025. It was reconstructed in 1998.
What condition is FAS 46 over Harpeth River in?
The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in February 2023.
How much traffic does FAS 46 over Harpeth River carry?
About 4,289 vehicles per day (2021 count), of which roughly 4% are trucks.
How long is FAS 46 over Harpeth River?
The structure is 218 ft (66.4 m) long with a longest span of 46 ft (14 m) and a deck 29 ft wide.
Who owns FAS 46 over Harpeth River?
It is owned by the State Highway Agency.