Forest System Road over Swan River
GoodLake County, Montana · No Data Entered · Structure no. 011000000015084
- Built
- 2012
- 13 years old
- Condition
- Good
- inspected August 2023
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete
- Length
- 163 ft
- 1 main span
- Daily traffic
- 50
- Owner
- Federal
- U.S. Forest Service
About this bridge
Forest System Road over Swan River is a prestressed concrete stringer/multi-beam or girder carrying Forest System Road over Swan River in Lake County, Montana. It was built in 2012, so it is 13 years old, younger than the Montana average of 47 years.
The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.
It carries about 50 vehicles a day, projected to reach 75 by 2045. The structure is 163 ft (49.8 m) long and 16 ft wide. If it were closed, the detour would be 620.7 mi (999 km).
Location
Open in Google MapsCondition and inspection
All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 8 Very Good | No problems noted. |
| Superstructure | 7 Good | Some minor problems. |
| Substructure | 8 Very Good | No problems noted. |
| Channel and channel protection | 9 Excellent | No problems noted. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Forest System Road over Swan River built?
It was built in 2012, making it 13 years old in 2025.
What condition is Forest System Road over Swan River in?
The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in August 2023.
How much traffic does Forest System Road over Swan River carry?
About 50 vehicles per day (latest count).
How long is Forest System Road over Swan River?
The structure is 163 ft (49.8 m) long with a longest span of 162 ft (49.4 m) and a deck 16 ft wide.
Who owns Forest System Road over Swan River?
It is owned by the U.S. Forest Service.