I-40 WB over Transcon Lane
GoodNavajo County, Arizona · 10.3 MI E JCT SR 99 · Structure no. 01780
- Built
- 1979
- 46 years old, rebuilt 2014
- Condition
- Good
- inspected May 2023
- Type
- Tee Beam
- Concrete Continuous
- Length
- 121 ft
- 3 main spans
- Daily traffic
- 11,316
- 2021 count
- Owner
- State
- State Highway Agency
About this bridge
I-40 WB over Transcon Lane is a concrete continuous tee beam carrying I-40 WB over Transcon Lane in Navajo County, Arizona. It was built in 1979 and reconstructed in 2014, so it is 46 years old, younger than the Arizona average of 47.8 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 11,316 vehicles a day, roughly 45% of them trucks, projected to reach 11,326 by 2041. The structure is 121 ft (36.9 m) long and 45 ft wide.
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. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was I-40 WB over Transcon Lane built?
It was built in 1979, making it 46 years old in 2025. It was reconstructed in 2014.
What condition is I-40 WB over Transcon Lane 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 May 2023.
How much traffic does I-40 WB over Transcon Lane carry?
About 11,316 vehicles per day (2021 count), of which roughly 45% are trucks.
How long is I-40 WB over Transcon Lane?
The structure is 121 ft (36.9 m) long with a longest span of 57 ft (17.4 m) and a deck 45 ft wide.
Who owns I-40 WB over Transcon Lane?
It is owned by the State Highway Agency.