US 93 FH 12 over Stillwater River
FairLincoln County, Montana · Stryker · Structure no. P00005158+01281
- Built
- 1955
- 70 years old
- Condition
- Fair
- inspected September 2024
- Type
- Tee Beam
- Concrete Continuous
- Length
- 60 ft
- 3 main spans
- Daily traffic
- 2,479
- 2023 count
- Owner
- State
- State Highway Agency
About this bridge
US 93 FH 12 over Stillwater River is a concrete continuous tee beam carrying US 93 FH 12 over Stillwater River in Lincoln County, Montana. It was built in 1955, so it is 70 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 2,479 vehicles a day, roughly 4% of them trucks, projected to reach 2,603 by 2043. The structure is 60 ft (18.3 m) long and 33 ft wide. If it were closed, the detour would be 123.7 mi (199 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 | 7 Good | Some minor problems. |
| Substructure | 7 Good | Some minor problems. |
| Channel and channel protection | 8 Very Good | No problems noted. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was US 93 FH 12 over Stillwater River built?
It was built in 1955, making it 70 years old in 2025.
What condition is US 93 FH 12 over Stillwater River 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 2024.
How much traffic does US 93 FH 12 over Stillwater River carry?
About 2,479 vehicles per day (2023 count), of which roughly 4% are trucks.
How long is US 93 FH 12 over Stillwater River?
The structure is 60 ft (18.3 m) long with a longest span of 36 ft (11 m) and a deck 33 ft wide.
Who owns US 93 FH 12 over Stillwater River?
It is owned by the State Highway Agency.