IRR BIA RTE N71 over Little Colorado River
GoodNavajo County, Arizona · 1.2KM N of N2 · Structure no. 00000000000N331
- Built
- 2003
- 22 years old
- Condition
- Good
- inspected March 2023
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete Continuous
- Length
- 257 ft
- 3 main spans
- Daily traffic
- 100
- 2023 count
- Owner
- Federal
- Bureau of Indian Affairs
About this bridge
IRR BIA RTE N71 over Little Colorado River is a prestressed concrete continuous stringer/multi-beam or girder carrying IRR BIA RTE N71 over Little Colorado River in Navajo County, Arizona. It was built in 2003, so it is 22 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 100 vehicles a day, roughly 3% of them trucks, projected to reach 117 by 2043. The structure is 257 ft (78.3 m) long and 29 ft wide. If it were closed, the detour would be 123.7 mi (199 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 | 8 Very Good | No problems noted. |
| Channel and channel protection | 4 Poor | Advanced section loss, deterioration, spalling or scour. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was IRR BIA RTE N71 over Little Colorado River built?
It was built in 2003, making it 22 years old in 2025.
What condition is IRR BIA RTE N71 over Little Colorado River 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 March 2023.
How much traffic does IRR BIA RTE N71 over Little Colorado River carry?
About 100 vehicles per day (2023 count), of which roughly 3% are trucks.
How long is IRR BIA RTE N71 over Little Colorado River?
The structure is 257 ft (78.3 m) long with a longest span of 85 ft (26 m) and a deck 29 ft wide.
Who owns IRR BIA RTE N71 over Little Colorado River?
It is owned by the Bureau of Indian Affairs.