I40 Wbl over Obed River
FairCumberland County, Tennessee · .1 MI from SR28 · Structure no. 18I00400022
- Built
- 1966
- 59 years old, rebuilt 2000
- Condition
- Fair
- inspected October 2023
- Type
- Stringer/Multi-beam or Girder
- Steel Continuous
- Length
- 320 ft
- 3 main spans
- Daily traffic
- 37,495
- 2021 count
- Owner
- State
- State Highway Agency
About this bridge
I40 Wbl over Obed River is a steel continuous stringer/multi-beam or girder carrying I40 Wbl over Obed River in Cumberland County, Tennessee. It was built in 1966 and reconstructed in 2000, so it is 59 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 37,495 vehicles a day, roughly 6% of them trucks, projected to reach 51,742 by 2041. The structure is 320 ft (97.5 m) long and 42 ft wide. If it were closed, the detour would be 0.6 mi (1 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 | 6 Satisfactory | Structural elements show some minor deterioration. |
| Channel and channel protection | 8 Very Good | No problems noted. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was I40 Wbl over Obed River built?
It was built in 1966, making it 59 years old in 2025. It was reconstructed in 2000.
What condition is I40 Wbl over Obed 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 October 2023.
How much traffic does I40 Wbl over Obed River carry?
About 37,495 vehicles per day (2021 count), of which roughly 6% are trucks.
How long is I40 Wbl over Obed River?
The structure is 320 ft (97.5 m) long with a longest span of 124 ft (37.8 m) and a deck 42 ft wide.
Who owns I40 Wbl over Obed River?
It is owned by the State Highway Agency.