Fs Route 83 over Big Hole River
FairBeaverhead County, Montana · Big Hole River · Structure no. 010202000000050
- Built
- 1950
- 75 years old
- Condition
- Fair
- inspected May 2023
- Type
- Stringer/Multi-beam or Girder
- Steel
- Length
- 203 ft
- 3 main spans
- Daily traffic
- 50
- Owner
- Federal
- U.S. Forest Service
About this bridge
Fs Route 83 over Big Hole River is a steel stringer/multi-beam or girder carrying Fs Route 83 over Big Hole River in Beaverhead County, Montana. It was built in 1950, so it is 75 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 50 vehicles a day, projected to reach 75 by 2045. The structure is 203 ft (61.9 m) long and 18 ft wide.
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 | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Channel and channel protection | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Fs Route 83 over Big Hole River built?
It was built in 1950, making it 75 years old in 2025.
What condition is Fs Route 83 over Big Hole 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 May 2023.
How much traffic does Fs Route 83 over Big Hole River carry?
About 50 vehicles per day (latest count).
How long is Fs Route 83 over Big Hole River?
The structure is 203 ft (61.9 m) long with a longest span of 64 ft (19.5 m) and a deck 18 ft wide.
Who owns Fs Route 83 over Big Hole River?
It is owned by the U.S. Forest Service.