I 40 over Cow Canyon
GoodCoconino County, Arizona · 8.9 MI W JCT SR 99 · Structure no. 05945
- Built
- 1950
- 75 years old, rebuilt 1970
- Condition
- Good
- inspected April 2023
- Type
- Culvert
- Concrete Continuous
- Length
- 21 ft
- 2 main spans
- Daily traffic
- 19,647
- 2021 count
- Owner
- State
- State Highway Agency
About this bridge
I 40 over Cow Canyon is a concrete continuous culvert carrying I 40 over Cow Canyon in Coconino County, Arizona. It was built in 1950 and reconstructed in 1970, so it is 75 years old, older 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 19,647 vehicles a day, roughly 51% of them trucks, projected to reach 19,657 by 2041. The structure is 21 ft (6.4 m) long. If it were closed, the detour would be 1.2 mi (2 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 |
|---|---|---|
| Channel and channel protection | 7 Good | Some minor problems. |
| Culvert | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was I 40 over Cow Canyon built?
It was built in 1950, making it 75 years old in 2025. It was reconstructed in 1970.
What condition is I 40 over Cow Canyon 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 April 2023.
How much traffic does I 40 over Cow Canyon carry?
About 19,647 vehicles per day (2021 count), of which roughly 51% are trucks.
How long is I 40 over Cow Canyon?
The structure is 21 ft (6.4 m) long with a longest span of 10 ft (3 m).
Who owns I 40 over Cow Canyon?
It is owned by the State Highway Agency.