IRR BIA RTE 8 over Pryor Creek
GoodBig Horn County, Montana · 1.7 KM West of Pryor · Structure no. 00000000000C225
- Built
- 1997
- 28 years old
- Condition
- Good
- inspected June 2024
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete
- Length
- 76 ft
- 1 main span
- Daily traffic
- 100
- 2024 count
- Owner
- Federal
- Bureau of Indian Affairs
About this bridge
IRR BIA RTE 8 over Pryor Creek is a prestressed concrete stringer/multi-beam or girder carrying IRR BIA RTE 8 over Pryor Creek in Big Horn County, Montana. It was built in 1997, so it is 28 years old, younger than the Montana average of 47 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 12% of them trucks, projected to reach 117 by 2044. The structure is 76 ft (23.2 m) long and 34 ft wide. If it were closed, the detour would be 49.7 mi (80 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 | 8 Very Good | No problems noted. |
| Substructure | 7 Good | Some minor problems. |
| Channel and channel protection | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was IRR BIA RTE 8 over Pryor Creek built?
It was built in 1997, making it 28 years old in 2025.
What condition is IRR BIA RTE 8 over Pryor Creek 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 June 2024.
How much traffic does IRR BIA RTE 8 over Pryor Creek carry?
About 100 vehicles per day (2024 count), of which roughly 12% are trucks.
How long is IRR BIA RTE 8 over Pryor Creek?
The structure is 76 ft (23.2 m) long with a longest span of 75 ft (22.9 m) and a deck 34 ft wide.
Who owns IRR BIA RTE 8 over Pryor Creek?
It is owned by the Bureau of Indian Affairs.