IRR BIA RTE 12 over Little Wind River
FairFremont County, Wyoming · 21.7 KM West of Riverton · Structure no. 00000000000C802
- Built
- 1973
- 52 years old
- Condition
- Fair
- inspected May 2024
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete
- Length
- 165 ft
- 3 main spans
- Daily traffic
- 35
- 2024 count
- Owner
- Federal
- Bureau of Indian Affairs
About this bridge
IRR BIA RTE 12 over Little Wind River is a prestressed concrete stringer/multi-beam or girder carrying IRR BIA RTE 12 over Little Wind River in Fremont County, Wyoming. It was built in 1973, so it is 52 years old, older than the Wyoming average of 48.4 years.
The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.
It carries about 35 vehicles a day, roughly 10% of them trucks, projected to reach 41 by 2044. The structure is 165 ft (50.4 m) long and 35 ft wide. If it were closed, the detour would be 9.9 mi (16 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 | 6 Satisfactory | Structural elements show some minor deterioration. |
| 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 12 over Little Wind River built?
It was built in 1973, making it 52 years old in 2025.
What condition is IRR BIA RTE 12 over Little Wind River 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 May 2024.
How much traffic does IRR BIA RTE 12 over Little Wind River carry?
About 35 vehicles per day (2024 count), of which roughly 10% are trucks.
How long is IRR BIA RTE 12 over Little Wind River?
The structure is 165 ft (50.4 m) long with a longest span of 60 ft (18.3 m) and a deck 35 ft wide.
Who owns IRR BIA RTE 12 over Little Wind River?
It is owned by the Bureau of Indian Affairs.