S 43 FH 20 over Trail Creek
GoodBeaverhead County, Montana · 19M W Wisdom · Structure no. P00046007+05221
- Built
- 1961
- 64 years old
- Condition
- Good
- inspected August 2024
- Type
- Slab
- Concrete Continuous
- Length
- 38 ft
- 2 main spans
- Daily traffic
- 461
- 2023 count
- Owner
- State
- State Highway Agency
About this bridge
S 43 FH 20 over Trail Creek is a concrete continuous slab carrying S 43 FH 20 over Trail Creek in Beaverhead County, Montana. It was built in 1961, so it is 64 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 461 vehicles a day, roughly 11% of them trucks, projected to reach 484 by 2043. The structure is 38 ft (11.6 m) long and 31 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 | 7 Good | Some minor problems. |
| Superstructure | 7 Good | Some minor problems. |
| Substructure | 7 Good | Some minor problems. |
| Channel and channel protection | 8 Very Good | No problems noted. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was S 43 FH 20 over Trail Creek built?
It was built in 1961, making it 64 years old in 2025.
What condition is S 43 FH 20 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 August 2024.
How much traffic does S 43 FH 20 over Trail Creek carry?
About 461 vehicles per day (2023 count), of which roughly 11% are trucks.
How long is S 43 FH 20 over Trail Creek?
The structure is 38 ft (11.6 m) long with a longest span of 19 ft (5.8 m) and a deck 31 ft wide.
Who owns S 43 FH 20 over Trail Creek?
It is owned by the State Highway Agency.