IRR BIA RTE 50 over Usbr Main Drain
FairPosted for loadLa Paz County, Arizona · 4 KM West of BIA 1 · Structure no. 00000000000H031
- Built
- 1954
- 71 years old
- Condition
- Fair
- inspected February 2024
- Type
- Slab
- Concrete Continuous
- Length
- 60 ft
- 3 main spans
- Daily traffic
- 30
- 2024 count
- Owner
- Federal
- Bureau of Indian Affairs
About this bridge
IRR BIA RTE 50 over Usbr Main Drain is a concrete continuous slab carrying IRR BIA RTE 50 over Usbr Main Drain in La Paz County, Arizona. It was built in 1954, so it is 71 years old, older than the Arizona average of 47.8 years.
The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 5 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. Its operating status is: posted for load restriction.
It carries about 30 vehicles a day, roughly 15% of them trucks, projected to reach 35 by 2044. The structure is 60 ft (18.3 m) long and 22 ft wide. If it were closed, the detour would be 4.3 mi (7 km).
Location
Open in Google MapsCondition and inspection
The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Superstructure | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Substructure | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| 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 50 over Usbr Main Drain built?
It was built in 1954, making it 71 years old in 2025.
What condition is IRR BIA RTE 50 over Usbr Main Drain in?
The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in February 2024.
How much traffic does IRR BIA RTE 50 over Usbr Main Drain carry?
About 30 vehicles per day (2024 count), of which roughly 15% are trucks.
How long is IRR BIA RTE 50 over Usbr Main Drain?
The structure is 60 ft (18.3 m) long with a longest span of 20 ft (6.1 m) and a deck 22 ft wide.
Who owns IRR BIA RTE 50 over Usbr Main Drain?
It is owned by the Bureau of Indian Affairs.