I40 over Harpeth River
FairCheatham County, Tennessee · .4 M E JCT SR249&I40 · Structure no. 11I00400008
- Built
- 1960
- 65 years old, rebuilt 1988
- Condition
- Fair
- inspected July 2024
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete
- Length
- 599 ft
- 14 main spans
- Daily traffic
- 53,557
- 2021 count
- Owner
- State
- State Highway Agency
About this bridge
I40 over Harpeth River is a prestressed concrete stringer/multi-beam or girder carrying I40 over Harpeth River in Cheatham County, Tennessee. It was built in 1960 and reconstructed in 1988, 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 fair condition with a lowest component rating of 6 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 53,557 vehicles a day, roughly 7% of them trucks, projected to reach 85,691 by 2042. The structure is 599 ft (182.6 m) long and 44 ft wide. If it were closed, the detour would be 1.2 mi (2 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 | 6 Satisfactory | Structural elements show some minor deterioration. |
| Superstructure | 7 Good | Some minor problems. |
| 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 I40 over Harpeth River built?
It was built in 1960, making it 65 years old in 2025. It was reconstructed in 1988.
What condition is I40 over 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 2024.
How much traffic does I40 over Harpeth River carry?
About 53,557 vehicles per day (2021 count), of which roughly 7% are trucks.
How long is I40 over Harpeth River?
The structure is 599 ft (182.6 m) long with a longest span of 49 ft (14.9 m) and a deck 44 ft wide.
Who owns I40 over Harpeth River?
It is owned by the State Highway Agency.