IRR BIA RTE N9073 over Upper Bonito Wash
PoorApache County, Arizona · 1.7 MI NW of Ft Defiance · Structure no. 00000000000N606
- Built
- 1972
- 53 years old
- Condition
- Poor
- inspected March 2023
- Type
- Stringer/Multi-beam or Girder
- Steel Continuous
- Length
- 49 ft
- 2 main spans
- Daily traffic
- 400
- 2023 count
- Owner
- Federal
- Bureau of Indian Affairs
About this bridge
IRR BIA RTE N9073 over Upper Bonito Wash is a steel continuous stringer/multi-beam or girder carrying IRR BIA RTE N9073 over Upper Bonito Wash in Apache County, Arizona. It was built in 1972, so it is 53 years old, older than the Arizona average of 47.8 years.
The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 2 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. Its operating status is: open, posting recommended but not legally implemented.
It carries about 400 vehicles a day, roughly 5% of them trucks, projected to reach 468 by 2040. The structure is 49 ft (15 m) long and 16 ft wide. If it were closed, the detour would be 0.6 mi (1 km).
Location
Open in Google MapsCondition and inspection
The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 6 Satisfactory | Structural elements show some minor deterioration. |
| Superstructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| Substructure | 2 Critical | Advanced deterioration of primary structural elements. Bridge may be closed until corrective action is taken. |
| 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 N9073 over Upper Bonito Wash built?
It was built in 1972, making it 53 years old in 2025.
What condition is IRR BIA RTE N9073 over Upper Bonito Wash in?
The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in March 2023.
How much traffic does IRR BIA RTE N9073 over Upper Bonito Wash carry?
About 400 vehicles per day (2023 count), of which roughly 5% are trucks.
How long is IRR BIA RTE N9073 over Upper Bonito Wash?
The structure is 49 ft (15 m) long with a longest span of 24 ft (7.2 m) and a deck 16 ft wide.
Who owns IRR BIA RTE N9073 over Upper Bonito Wash?
It is owned by the Bureau of Indian Affairs.