US 310 over Bridger Creek
FairCarbon County, Montana · 2M S Bridger · Structure no. P00004023+05561
- Built
- 1971
- 54 years old
- Condition
- Fair
- inspected April 2023
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete
- Length
- 87 ft
- 1 main span
- Daily traffic
- 1,932
- 2023 count
- Owner
- State
- State Highway Agency
About this bridge
US 310 over Bridger Creek is a prestressed concrete stringer/multi-beam or girder carrying US 310 over Bridger Creek in Carbon County, Montana. It was built in 1971, so it is 54 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 1,932 vehicles a day, roughly 13% of them trucks, projected to reach 2,029 by 2043. The structure is 87 ft (26.5 m) long and 47 ft wide. If it were closed, the detour would be 123.7 mi (199 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 | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was US 310 over Bridger Creek built?
It was built in 1971, making it 54 years old in 2025.
What condition is US 310 over Bridger Creek 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 April 2023.
How much traffic does US 310 over Bridger Creek carry?
About 1,932 vehicles per day (2023 count), of which roughly 13% are trucks.
How long is US 310 over Bridger Creek?
The structure is 87 ft (26.5 m) long with a longest span of 85 ft (25.9 m) and a deck 47 ft wide.
Who owns US 310 over Bridger Creek?
It is owned by the State Highway Agency.