S-81 over Wolf Creek
GoodFergus County, Montana · Denton · Structure no. 000000202206208
- Built
- 2022
- 3 years old
- Condition
- Good
- inspected July 2024
- Type
- Box Beam or Girders - Multiple
- Concrete
- Length
- 116 ft
- 3 main spans
- Daily traffic
- 371
- 2023 count
- Owner
- State
- State Highway Agency
About this bridge
S-81 over Wolf Creek is a concrete box beam or girders - multiple carrying S-81 over Wolf Creek in Fergus County, Montana. It was built in 2022, so it is 3 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 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.
It carries about 371 vehicles a day, roughly 8% of them trucks, projected to reach 390 by 2043. The structure is 116 ft (35.3 m) long and 35 ft wide. If it were closed, the detour would be 123.7 mi (199 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 | 8 Very Good | No problems noted. |
| Superstructure | 8 Very Good | No problems noted. |
| Substructure | 8 Very Good | No problems noted. |
| Channel and channel protection | 8 Very Good | No problems noted. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was S-81 over Wolf Creek built?
It was built in 2022, making it 3 years old in 2025.
What condition is S-81 over Wolf 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 July 2024.
How much traffic does S-81 over Wolf Creek carry?
About 371 vehicles per day (2023 count), of which roughly 8% are trucks.
How long is S-81 over Wolf Creek?
The structure is 116 ft (35.3 m) long with a longest span of 112 ft (34 m) and a deck 35 ft wide.
Who owns S-81 over Wolf Creek?
It is owned by the State Highway Agency.