IRR BIA RTE 4 over Whitetail Creek
FairGlacier County, Montana · 11.3 KM NE of Heart Butte · Structure no. 00000000000C109
- Built
- 1972
- 53 years old
- Condition
- Fair
- inspected September 2023
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete
- Length
- 47 ft
- 1 main span
- Daily traffic
- 500
- 2023 count
- Owner
- Federal
- Bureau of Indian Affairs
About this bridge
IRR BIA RTE 4 over Whitetail Creek is a prestressed concrete stringer/multi-beam or girder carrying IRR BIA RTE 4 over Whitetail Creek in Glacier County, Montana. It was built in 1972, so it is 53 years old, older than the Montana average of 47 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 500 vehicles a day, roughly 10% of them trucks, projected to reach 585 by 2043. The structure is 47 ft (14.4 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
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 | 6 Satisfactory | Structural elements show some minor deterioration. |
| Substructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| 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 4 over Whitetail Creek built?
It was built in 1972, making it 53 years old in 2025.
What condition is IRR BIA RTE 4 over Whitetail Creek 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 September 2023.
How much traffic does IRR BIA RTE 4 over Whitetail Creek carry?
About 500 vehicles per day (2023 count), of which roughly 10% are trucks.
How long is IRR BIA RTE 4 over Whitetail Creek?
The structure is 47 ft (14.4 m) long with a longest span of 45 ft (13.7 m) and a deck 34 ft wide.
Who owns IRR BIA RTE 4 over Whitetail Creek?
It is owned by the Bureau of Indian Affairs.