IRR BIA RTE 4 over Birney Creek
GoodRosebud County, Montana · 2.9 KM NW of Birney · Structure no. 00000000000C728
- Built
- 2007
- 18 years old
- Condition
- Good
- inspected June 2024
- Type
- Culvert
- Concrete
- Length
- 22 ft
- 2 main spans
- Daily traffic
- 250
- 2024 count
- Owner
- Federal
- Bureau of Indian Affairs
About this bridge
IRR BIA RTE 4 over Birney Creek is a concrete culvert carrying IRR BIA RTE 4 over Birney Creek in Rosebud County, Montana. It was built in 2007, so it is 18 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 250 vehicles a day, roughly 10% of them trucks, projected to reach 390 by 2044. The structure is 22 ft (6.6 m) long and 32 ft wide. If it were closed, the detour would be 21.7 mi (35 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 |
|---|---|---|
| Channel and channel protection | 8 Very Good | No problems noted. |
| Culvert | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was IRR BIA RTE 4 over Birney Creek built?
It was built in 2007, making it 18 years old in 2025.
What condition is IRR BIA RTE 4 over Birney 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 4 over Birney Creek carry?
About 250 vehicles per day (2024 count), of which roughly 10% are trucks.
How long is IRR BIA RTE 4 over Birney Creek?
The structure is 22 ft (6.6 m) long with a longest span of 10 ft (3 m) and a deck 32 ft wide.
Who owns IRR BIA RTE 4 over Birney Creek?
It is owned by the Bureau of Indian Affairs.