S 544 over Little Powder River
FairPowder River County, Montana · Biddle · Structure no. S00544000+03001
- Built
- 1974
- 51 years old
- Condition
- Fair
- inspected December 2024
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete
- Length
- 183 ft
- 2 main spans
- Daily traffic
- 139
- 2023 count
- Owner
- County
- County Highway Agency
About this bridge
S 544 over Little Powder River is a prestressed concrete stringer/multi-beam or girder carrying S 544 over Little Powder River in Powder River 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 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 139 vehicles a day, roughly 6% of them trucks, projected to reach 146 by 2043. The structure is 183 ft (55.8 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
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 | 7 Good | Some minor problems. |
| Substructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| Channel and channel protection | 8 Very Good | No problems noted. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was S 544 over Little Powder River built?
It was built in 1974, making it 51 years old in 2025.
What condition is S 544 over Little Powder River 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 December 2024.
How much traffic does S 544 over Little Powder River carry?
About 139 vehicles per day (2023 count), of which roughly 6% are trucks.
How long is S 544 over Little Powder River?
The structure is 183 ft (55.8 m) long with a longest span of 91 ft (27.7 m) and a deck 34 ft wide.
Who owns S 544 over Little Powder River?
It is owned by the County Highway Agency.