S 484 over Bear Creek
GoodPowder River County, Montana · 30M SE Ashland · Structure no. S00484026+04351
- Built
- 1999
- 26 years old
- Condition
- Good
- inspected September 2023
- Type
- Culvert
- Steel
- Length
- 30 ft
- 2 main spans
- Daily traffic
- 20
- 2023 count
- Owner
- County
- County Highway Agency
About this bridge
S 484 over Bear Creek is a steel culvert carrying S 484 over Bear Creek in Powder River County, Montana. It was built in 1999, so it is 26 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 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 20 vehicles a day, roughly 10% of them trucks, projected to reach 21 by 2043. The structure is 30 ft (9.1 m) long. 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 |
|---|---|---|
| Channel and channel protection | 8 Very Good | No problems noted. |
| Culvert | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was S 484 over Bear Creek built?
It was built in 1999, making it 26 years old in 2025.
What condition is S 484 over Bear 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 September 2023.
How much traffic does S 484 over Bear Creek carry?
About 20 vehicles per day (2023 count), of which roughly 10% are trucks.
How long is S 484 over Bear Creek?
The structure is 30 ft (9.1 m) long with a longest span of 11 ft (3.4 m).
Who owns S 484 over Bear Creek?
It is owned by the County Highway Agency.