S Shawmut RD over Musselshell River 009
FairWheatland County, Montana · S Shawmut · Structure no. L54005000+05001
- Built
- 1949
- 76 years old
- Condition
- Fair
- inspected September 2024
- Type
- Stringer/Multi-beam or Girder
- Steel Continuous
- Length
- 132 ft
- 2 main spans
- Daily traffic
- 100
- 2025 count
- Owner
- County
- County Highway Agency
About this bridge
S Shawmut RD over Musselshell River 009 is a steel continuous stringer/multi-beam or girder carrying S Shawmut RD over Musselshell River 009 in Wheatland County, Montana. It was built in 1949, so it is 76 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 100 vehicles a day, roughly 3% of them trucks, projected to reach 100 by 2040. The structure is 132 ft (40.2 m) long and 22 ft wide. If it were closed, the detour would be 23 mi (37 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 | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was S Shawmut RD over Musselshell River 009 built?
It was built in 1949, making it 76 years old in 2025.
What condition is S Shawmut RD over Musselshell River 009 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 S Shawmut RD over Musselshell River 009 carry?
About 100 vehicles per day (2025 count), of which roughly 3% are trucks.
How long is S Shawmut RD over Musselshell River 009?
The structure is 132 ft (40.2 m) long with a longest span of 65 ft (19.8 m) and a deck 22 ft wide.
Who owns S Shawmut RD over Musselshell River 009?
It is owned by the County Highway Agency.