IRR BIA RTE N172 over Lukachukai Wash
GoodApache County, Arizona · At Round Rock Day School · Structure no. 00000000000N518
- Built
- 1977
- 48 years old
- Condition
- Good
- inspected April 2023
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete
- Length
- 210 ft
- 3 main spans
- Daily traffic
- 385
- 2023 count
- Owner
- Federal
- Bureau of Indian Affairs
About this bridge
IRR BIA RTE N172 over Lukachukai Wash is a prestressed concrete stringer/multi-beam or girder carrying IRR BIA RTE N172 over Lukachukai Wash in Apache County, Arizona. It was built in 1977, so it is 48 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 385 vehicles a day, roughly 5% of them trucks, projected to reach 450 by 2040. The structure is 210 ft (63.9 m) long and 31 ft wide. If it were closed, the detour would be 8.7 mi (14 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 | 6 Satisfactory | Structural elements show some minor deterioration. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was IRR BIA RTE N172 over Lukachukai Wash built?
It was built in 1977, making it 48 years old in 2025.
What condition is IRR BIA RTE N172 over Lukachukai 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 April 2023.
How much traffic does IRR BIA RTE N172 over Lukachukai Wash carry?
About 385 vehicles per day (2023 count), of which roughly 5% are trucks.
How long is IRR BIA RTE N172 over Lukachukai Wash?
The structure is 210 ft (63.9 m) long with a longest span of 70 ft (21.3 m) and a deck 31 ft wide.
Who owns IRR BIA RTE N172 over Lukachukai Wash?
It is owned by the Bureau of Indian Affairs.