S 43 over Steel Creek
FairBeaverhead County, Montana · 1M N Wisdom · Structure no. P00046027+06761
- Built
- 1956
- 69 years old
- Condition
- Fair
- inspected August 2024
- Type
- Stringer/Multi-beam or Girder
- Wood or Timber
- Length
- 38 ft
- 2 main spans
- Daily traffic
- 353
- 2023 count
- Owner
- State
- State Highway Agency
About this bridge
S 43 over Steel Creek is a wood or timber stringer/multi-beam or girder carrying S 43 over Steel Creek in Beaverhead County, Montana. It was built in 1956, so it is 69 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 353 vehicles a day, roughly 9% of them trucks, projected to reach 371 by 2043. The structure is 38 ft (11.6 m) long and 38 ft wide. If it were closed, the detour would be 123.7 mi (199 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 | 6 Satisfactory | Structural elements show some minor deterioration. |
| Substructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| Channel and channel protection | 6 Satisfactory | Structural elements show some minor deterioration. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was S 43 over Steel Creek built?
It was built in 1956, making it 69 years old in 2025.
What condition is S 43 over Steel 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 August 2024.
How much traffic does S 43 over Steel Creek carry?
About 353 vehicles per day (2023 count), of which roughly 9% are trucks.
How long is S 43 over Steel Creek?
The structure is 38 ft (11.6 m) long with a longest span of 19 ft (5.8 m) and a deck 38 ft wide.
Who owns S 43 over Steel Creek?
It is owned by the State Highway Agency.