IRR BIA RTE 21 over Main Drain 17th Avenue
FairPosted for loadLa Paz County, Arizona · 0.3 KM S of BIA RTE 21/34 · Structure no. 00000000000H026
- Built
- 1969
- 56 years old
- Condition
- Fair
- inspected December 2021
- Type
- Stringer/Multi-beam or Girder
- Concrete
- Length
- 75 ft
- 3 main spans
- Daily traffic
- 90
- 2021 count
- Owner
- Federal
- Bureau of Indian Affairs
About this bridge
IRR BIA RTE 21 over Main Drain 17th Avenue is a concrete stringer/multi-beam or girder carrying IRR BIA RTE 21 over Main Drain 17th Avenue in La Paz County, Arizona. It was built in 1969, so it is 56 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 90 vehicles a day, roughly 15% of them trucks, projected to reach 115 by 2039. The structure is 75 ft (23 m) long and 28 ft wide. If it were closed, the detour would be 3.7 mi (6 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 | 7 Good | Some minor problems. |
| Substructure | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Channel and channel protection | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was IRR BIA RTE 21 over Main Drain 17th Avenue built?
It was built in 1969, making it 56 years old in 2025.
What condition is IRR BIA RTE 21 over Main Drain 17th Avenue 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 December 2021.
How much traffic does IRR BIA RTE 21 over Main Drain 17th Avenue carry?
About 90 vehicles per day (2021 count), of which roughly 15% are trucks.
How long is IRR BIA RTE 21 over Main Drain 17th Avenue?
The structure is 75 ft (23 m) long with a longest span of 25 ft (7.6 m) and a deck 28 ft wide.
Who owns IRR BIA RTE 21 over Main Drain 17th Avenue?
It is owned by the Bureau of Indian Affairs.