Stewart ST over Silverbow Creek 012
FairDeer Lodge County, Montana · E Opportunity · Structure no. L12127000+05001
- Built
- 1969
- 56 years old
- Condition
- Fair
- inspected March 2024
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete
- Length
- 76 ft
- 1 main span
- Daily traffic
- 111
- 2023 count
- Owner
- County
- County Highway Agency
About this bridge
Stewart ST over Silverbow Creek 012 is a prestressed concrete stringer/multi-beam or girder carrying Stewart ST over Silverbow Creek 012 in Deer Lodge County, Montana. It was built in 1969, so it is 56 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 111 vehicles a day, roughly 3% of them trucks, projected to reach 119 by 2043. The structure is 76 ft (23.2 m) long and 34 ft wide. If it were closed, the detour would be 19.3 mi (31 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 | 7 Good | Some minor problems. |
| Superstructure | 7 Good | Some minor problems. |
| Substructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| Channel and channel protection | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Stewart ST over Silverbow Creek 012 built?
It was built in 1969, making it 56 years old in 2025.
What condition is Stewart ST over Silverbow Creek 012 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 March 2024.
How much traffic does Stewart ST over Silverbow Creek 012 carry?
About 111 vehicles per day (2023 count), of which roughly 3% are trucks.
How long is Stewart ST over Silverbow Creek 012?
The structure is 76 ft (23.2 m) long with a longest span of 75 ft (22.9 m) and a deck 34 ft wide.
Who owns Stewart ST over Silverbow Creek 012?
It is owned by the County Highway Agency.