S 200 over Clark Fork River
FairSanders County, Montana · 1M NW Trout Creek · Structure no. P00006028+01091
- Built
- 1958
- 67 years old, rebuilt 2020
- Condition
- Fair
- inspected August 2023
- Type
- Girder and Floorbeam System
- Steel Continuous
- Length
- 1,061 ft
- 5 main spans
- Daily traffic
- 2,069
- 2023 count
- Owner
- State
- State Highway Agency
About this bridge
S 200 over Clark Fork River is a steel continuous girder and floorbeam system carrying S 200 over Clark Fork River in Sanders County, Montana. It was built in 1958 and reconstructed in 2020, so it is 67 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 5 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 2,069 vehicles a day, roughly 4% of them trucks, projected to reach 2,172 by 2043. The structure is 1,061 ft (323.4 m) long and 34 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 | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Superstructure | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Substructure | 7 Good | Some minor problems. |
| Channel and channel protection | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was S 200 over Clark Fork River built?
It was built in 1958, making it 67 years old in 2025. It was reconstructed in 2020.
What condition is S 200 over Clark Fork 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 August 2023.
How much traffic does S 200 over Clark Fork River carry?
About 2,069 vehicles per day (2023 count), of which roughly 4% are trucks.
How long is S 200 over Clark Fork River?
The structure is 1,061 ft (323.4 m) long with a longest span of 200 ft (60.9 m) and a deck 34 ft wide.
Who owns S 200 over Clark Fork River?
It is owned by the State Highway Agency.