RD 231 over W Fisher River
FairLincoln County, Montana · 1 MI E Lake CR Campground · Structure no. 011405000000216
- Built
- 1982
- 43 years old
- Condition
- Fair
- inspected July 2024
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete
- Length
- 75 ft
- 1 main span
- Daily traffic
- 50
- Owner
- Federal
- U.S. Forest Service
About this bridge
RD 231 over W Fisher River is a prestressed concrete stringer/multi-beam or girder carrying RD 231 over W Fisher River in Lincoln County, Montana. It was built in 1982, so it is 43 years old, younger 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 50 vehicles a day, projected to reach 75 by 2045. The structure is 75 ft (22.9 m) long and 17 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 | 7 Good | Some minor problems. |
| Substructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| Channel and channel protection | 6 Satisfactory | Structural elements show some minor deterioration. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was RD 231 over W Fisher River built?
It was built in 1982, making it 43 years old in 2025.
What condition is RD 231 over W Fisher 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 July 2024.
How much traffic does RD 231 over W Fisher River carry?
About 50 vehicles per day (latest count).
How long is RD 231 over W Fisher River?
The structure is 75 ft (22.9 m) long with a longest span of 72 ft (21.8 m) and a deck 17 ft wide.
Who owns RD 231 over W Fisher River?
It is owned by the U.S. Forest Service.