County Road 278 over Beaverhead River 124
GoodBeaverhead County, Montana · 1.2M S Barretts Int · Structure no. L01278001+09001
- Built
- 1988
- 37 years old
- Condition
- Good
- inspected January 2025
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete
- Length
- 101 ft
- 1 main span
- Daily traffic
- 26
- 2023 count
- Owner
- County
- County Highway Agency
About this bridge
County Road 278 over Beaverhead River 124 is a prestressed concrete stringer/multi-beam or girder carrying County Road 278 over Beaverhead River 124 in Beaverhead County, Montana. It was built in 1988, so it is 37 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 26 vehicles a day, roughly 3% of them trucks, projected to reach 28 by 2043. The structure is 101 ft (30.8 m) long and 23 ft wide. If it were closed, the detour would be 11.8 mi (19 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 | 7 Good | Some minor problems. |
| Superstructure | 7 Good | Some minor problems. |
| Substructure | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was County Road 278 over Beaverhead River 124 built?
It was built in 1988, making it 37 years old in 2025.
What condition is County Road 278 over Beaverhead River 124 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 January 2025.
How much traffic does County Road 278 over Beaverhead River 124 carry?
About 26 vehicles per day (2023 count), of which roughly 3% are trucks.
How long is County Road 278 over Beaverhead River 124?
The structure is 101 ft (30.8 m) long with a longest span of 100 ft (30.5 m) and a deck 23 ft wide.
Who owns County Road 278 over Beaverhead River 124?
It is owned by the County Highway Agency.