US 12 over Int West Forsyth I 94
FairRosebud County, Montana · SW Edge Forsyth · Structure no. P00014270+08881
- Built
- 1977
- 48 years old
- Condition
- Fair
- inspected December 2024
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete
- Length
- 255 ft
- 4 main spans
- Daily traffic
- 1,249
- 2023 count
- Owner
- State
- State Highway Agency
About this bridge
US 12 over Int West Forsyth I 94 is a prestressed concrete stringer/multi-beam or girder carrying US 12 over Int West Forsyth I 94 in Rosebud County, Montana. It was built in 1977, so it is 48 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 1,249 vehicles a day, roughly 4% of them trucks, projected to reach 1,311 by 2043. The structure is 255 ft (77.8 m) long and 46 ft wide.
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 | 8 Very Good | No problems noted. |
| Substructure | 6 Satisfactory | Structural elements show some minor deterioration. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was US 12 over Int West Forsyth I 94 built?
It was built in 1977, making it 48 years old in 2025.
What condition is US 12 over Int West Forsyth I 94 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 December 2024.
How much traffic does US 12 over Int West Forsyth I 94 carry?
About 1,249 vehicles per day (2023 count), of which roughly 4% are trucks.
How long is US 12 over Int West Forsyth I 94?
The structure is 255 ft (77.8 m) long with a longest span of 87 ft (26.4 m) and a deck 46 ft wide.
Who owns US 12 over Int West Forsyth I 94?
It is owned by the State Highway Agency.