Swamp CR Road over Big Swamp CR
FairBeaverhead County, Montana · Big Swamp CR · Structure no. 010203000000005
- Built
- 1968
- 57 years old
- Condition
- Fair
- inspected September 2024
- Type
- Stringer/Multi-beam or Girder
- Wood or Timber
- Length
- 25 ft
- 1 main span
- Daily traffic
- 15
- Owner
- Federal
- U.S. Forest Service
About this bridge
Swamp CR Road over Big Swamp CR is a wood or timber stringer/multi-beam or girder carrying Swamp CR Road over Big Swamp CR in Beaverhead County, Montana. It was built in 1968, so it is 57 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 15 vehicles a day, projected to reach 22 by 2045. The structure is 25 ft (7.5 m) long and 15 ft wide. If it were closed, the detour would be 98.2 mi (158 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 | 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 Swamp CR Road over Big Swamp CR built?
It was built in 1968, making it 57 years old in 2025.
What condition is Swamp CR Road over Big Swamp CR 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 Swamp CR Road over Big Swamp CR carry?
About 15 vehicles per day (latest count).
How long is Swamp CR Road over Big Swamp CR?
The structure is 25 ft (7.5 m) long with a longest span of 23 ft (7 m) and a deck 15 ft wide.
Who owns Swamp CR Road over Big Swamp CR?
It is owned by the U.S. Forest Service.