IRR US 89 over Grey Spot Wash
GoodCoconino County, Arizona · 12.8 MI S JCT US 89A · Structure no. 04839
- Built
- 1936
- 89 years old, rebuilt 1976
- Condition
- Good
- inspected September 2024
- Type
- Culvert
- Concrete Continuous
- Length
- 32 ft
- 3 main spans
- Daily traffic
- 3,383
- 2022 count
- Owner
- State
- State Highway Agency
About this bridge
IRR US 89 over Grey Spot Wash is a concrete continuous culvert carrying IRR US 89 over Grey Spot Wash in Coconino County, Arizona. It was built in 1936 and reconstructed in 1976, so it is 89 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 3,383 vehicles a day, roughly 30% of them trucks, projected to reach 3,393 by 2042. The structure is 32 ft (9.8 m) long. If it were closed, the detour would be 95.7 mi (154 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 IRR US 89 over Grey Spot Wash built?
It was built in 1936, making it 89 years old in 2025. It was reconstructed in 1976.
What condition is IRR US 89 over Grey Spot Wash 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 September 2024.
How much traffic does IRR US 89 over Grey Spot Wash carry?
About 3,383 vehicles per day (2022 count), of which roughly 30% are trucks.
How long is IRR US 89 over Grey Spot Wash?
The structure is 32 ft (9.8 m) long with a longest span of 10 ft (3 m).
Who owns IRR US 89 over Grey Spot Wash?
It is owned by the State Highway Agency.