S Montana ST over Silver Bow Creek
FairSilver Bow County, Montana · Butte-S Montana ST · Structure no. U01805000+05711
- Built
- 1970
- 55 years old, rebuilt 2003
- Condition
- Fair
- inspected July 2023
- Type
- Slab
- Concrete
- Length
- 31 ft
- 1 main span
- Daily traffic
- 14,718
- 2023 count
- Owner
- State
- State Highway Agency
About this bridge
S Montana ST over Silver Bow Creek is a concrete slab carrying S Montana ST over Silver Bow Creek in Silver Bow County, Montana. It was built in 1970 and reconstructed in 2003, so it is 55 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 14,718 vehicles a day, roughly 1% of them trucks, projected to reach 15,454 by 2043. The structure is 31 ft (9.4 m) long and 75 ft wide. If it were closed, the detour would be 3.1 mi (5 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 S Montana ST over Silver Bow Creek built?
It was built in 1970, making it 55 years old in 2025. It was reconstructed in 2003.
What condition is S Montana ST over Silver Bow 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 July 2023.
How much traffic does S Montana ST over Silver Bow Creek carry?
About 14,718 vehicles per day (2023 count), of which roughly 1% are trucks.
How long is S Montana ST over Silver Bow Creek?
The structure is 31 ft (9.4 m) long with a longest span of 30 ft (9.1 m) and a deck 75 ft wide.
Who owns S Montana ST over Silver Bow Creek?
It is owned by the State Highway Agency.