Route 49 over W F Bitterroot
FairRavalli County, Montana · No Data Entered · Structure no. 010304000000072
- Built
- 1964
- 61 years old
- Condition
- Fair
- inspected October 2023
- Type
- Stringer/Multi-beam or Girder
- Steel
- Length
- 160 ft
- 1 main span
- Daily traffic
- 21
- 1984 count
- Owner
- Federal
- U.S. Forest Service
About this bridge
Route 49 over W F Bitterroot is a steel stringer/multi-beam or girder carrying Route 49 over W F Bitterroot in Ravalli County, Montana. It was built in 1964, so it is 61 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 21 vehicles a day, projected to reach 31 by 2045. The structure is 160 ft (48.7 m) long and 18 ft wide. If it were closed, the detour would be 98.2 mi (158 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 | 8 Very Good | No problems noted. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Route 49 over W F Bitterroot built?
It was built in 1964, making it 61 years old in 2025.
What condition is Route 49 over W F Bitterroot 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 October 2023.
How much traffic does Route 49 over W F Bitterroot carry?
About 21 vehicles per day (1984 count).
How long is Route 49 over W F Bitterroot?
The structure is 160 ft (48.7 m) long with a longest span of 121 ft (36.9 m) and a deck 18 ft wide.
Who owns Route 49 over W F Bitterroot?
It is owned by the U.S. Forest Service.