Oilmont HWY over West Fork Willow Creek
FairToole County, Montana · 11M E Oilmont · Structure no. S00343011+00281
- Built
- 1967
- 58 years old
- Condition
- Fair
- inspected February 2024
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete
- Length
- 72 ft
- 1 main span
- Daily traffic
- 106
- 2023 count
- Owner
- State
- State Highway Agency
About this bridge
Oilmont HWY over West Fork Willow Creek is a prestressed concrete stringer/multi-beam or girder carrying Oilmont HWY over West Fork Willow Creek in Toole County, Montana. It was built in 1967, so it is 58 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 106 vehicles a day, roughly 12% of them trucks, projected to reach 111 by 2043. The structure is 72 ft (21.9 m) long and 33 ft wide. If it were closed, the detour would be 60.3 mi (97 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 | 6 Satisfactory | Structural elements show some minor deterioration. |
| Superstructure | 8 Very Good | No problems noted. |
| Substructure | 7 Good | Some minor problems. |
| Channel and channel protection | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Oilmont HWY over West Fork Willow Creek built?
It was built in 1967, making it 58 years old in 2025.
What condition is Oilmont HWY over West Fork Willow 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 February 2024.
How much traffic does Oilmont HWY over West Fork Willow Creek carry?
About 106 vehicles per day (2023 count), of which roughly 12% are trucks.
How long is Oilmont HWY over West Fork Willow Creek?
The structure is 72 ft (21.9 m) long with a longest span of 70 ft (21.3 m) and a deck 33 ft wide.
Who owns Oilmont HWY over West Fork Willow Creek?
It is owned by the State Highway Agency.