US 287 over Cabin Creek
FairGallatin County, Montana · 23M NW West Yellowstone · Structure no. P00087008+05951
- Built
- 1964
- 61 years old
- Condition
- Fair
- inspected July 2023
- Type
- Tee Beam
- Concrete
- Length
- 83 ft
- 3 main spans
- Daily traffic
- 1,010
- 2023 count
- Owner
- State
- State Highway Agency
About this bridge
US 287 over Cabin Creek is a concrete tee beam carrying US 287 over Cabin Creek in Gallatin County, Montana. It was built in 1964, so it is 61 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 1,010 vehicles a day, roughly 4% of them trucks, projected to reach 1,111 by 2043. The structure is 83 ft (25.3 m) long and 33 ft wide. If it were closed, the detour would be 64 mi (103 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 | 6 Satisfactory | Structural elements show some minor deterioration. |
| 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 287 over Cabin Creek built?
It was built in 1964, making it 61 years old in 2025.
What condition is US 287 over Cabin 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 July 2023.
How much traffic does US 287 over Cabin Creek carry?
About 1,010 vehicles per day (2023 count), of which roughly 4% are trucks.
How long is US 287 over Cabin Creek?
The structure is 83 ft (25.3 m) long with a longest span of 35 ft (10.7 m) and a deck 33 ft wide.
Who owns US 287 over Cabin Creek?
It is owned by the State Highway Agency.