I840 over I840 / West Harpeth Rv
GoodWilliamson County, Tennessee · 0.8 MI W JCT SR106&I840 · Structure no. 94SR8400051
- Built
- 2004
- 21 years old
- Condition
- Good
- inspected January 2025
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete Continuous
- Length
- 370 ft
- 3 main spans
- Daily traffic
- 30,377
- 2021 count
- Owner
- State
- State Highway Agency
About this bridge
I840 over I840 / West Harpeth Rv is a prestressed concrete continuous stringer/multi-beam or girder carrying I840 over I840 / West Harpeth Rv in Williamson County, Tennessee. It was built in 2004, so it is 21 years old, younger 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 30,377 vehicles a day, roughly 7% of them trucks, projected to reach 41,246 by 2041. The structure is 370 ft (112.8 m) long and 44 ft wide. If it were closed, the detour would be 3.1 mi (5 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 | 7 Good | Some minor problems. |
| Superstructure | 7 Good | Some minor problems. |
| Substructure | 7 Good | Some minor problems. |
| Channel and channel protection | 8 Very Good | No problems noted. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was I840 over I840 / West Harpeth Rv built?
It was built in 2004, making it 21 years old in 2025.
What condition is I840 over I840 / West Harpeth Rv 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 January 2025.
How much traffic does I840 over I840 / West Harpeth Rv carry?
About 30,377 vehicles per day (2021 count), of which roughly 7% are trucks.
How long is I840 over I840 / West Harpeth Rv?
The structure is 370 ft (112.8 m) long with a longest span of 124 ft (37.8 m) and a deck 44 ft wide.
Who owns I840 over I840 / West Harpeth Rv?
It is owned by the State Highway Agency.