Oilmont HWY over Trail Creek
GoodToole County, Montana · 21M E Oilmont · Structure no. S00343021+07241
- Built
- 1974
- 51 years old
- Condition
- Good
- inspected February 2024
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete
- Length
- 145 ft
- 2 main spans
- Daily traffic
- 106
- 2023 count
- Owner
- State
- State Highway Agency
About this bridge
Oilmont HWY over Trail Creek is a prestressed concrete stringer/multi-beam or girder carrying Oilmont HWY over Trail Creek in Toole County, Montana. It was built in 1974, so it is 51 years old, older 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 106 vehicles a day, roughly 12% of them trucks, projected to reach 111 by 2043. The structure is 145 ft (44.2 m) long and 34 ft wide. If it were closed, the detour would be 60.3 mi (97 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 | 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 Trail Creek built?
It was built in 1974, making it 51 years old in 2025.
What condition is Oilmont HWY over Trail Creek 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 February 2024.
How much traffic does Oilmont HWY over Trail Creek carry?
About 106 vehicles per day (2023 count), of which roughly 12% are trucks.
How long is Oilmont HWY over Trail Creek?
The structure is 145 ft (44.2 m) long with a longest span of 71 ft (21.6 m) and a deck 34 ft wide.
Who owns Oilmont HWY over Trail Creek?
It is owned by the State Highway Agency.