Nfa 1005 (sa 9426) over Little Harpeth River
FairWilliamson County, Tennessee · 3.1 MI NW JCT SR46&SR106 · Structure no. 94S63230001
- Built
- 1962
- 63 years old
- Condition
- Fair
- inspected July 2023
- Type
- Tee Beam
- Concrete
- Length
- 186 ft
- 6 main spans
- Daily traffic
- 4,960
- 2021 count
- Owner
- County
- County Highway Agency
About this bridge
Nfa 1005 (sa 9426) over Little Harpeth River is a concrete tee beam carrying Nfa 1005 (sa 9426) over Little Harpeth River in Williamson County, Tennessee. It was built in 1962, so it is 63 years old, older than the Tennessee average of 47.4 years.
The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 5 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.
It carries about 4,960 vehicles a day, roughly 13% of them trucks, projected to reach 7,470 by 2041. The structure is 186 ft (56.7 m) long and 29 ft wide. If it were closed, the detour would be 5 mi (8 km).
Location
Open in Google MapsCondition and inspection
The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Superstructure | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Substructure | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| 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 1005 (sa 9426) over Little Harpeth River built?
It was built in 1962, making it 63 years old in 2025.
What condition is Nfa 1005 (sa 9426) over Little Harpeth River in?
The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in July 2023.
How much traffic does Nfa 1005 (sa 9426) over Little Harpeth River carry?
About 4,960 vehicles per day (2021 count), of which roughly 13% are trucks.
How long is Nfa 1005 (sa 9426) over Little Harpeth River?
The structure is 186 ft (56.7 m) long with a longest span of 43 ft (13.1 m) and a deck 29 ft wide.
Who owns Nfa 1005 (sa 9426) over Little Harpeth River?
It is owned by the County Highway Agency.