MT-43 FH 20 over Trail Creek
GoodBeaverhead County, Montana · 16 M W Wisdom · Structure no. 000000202105863
- Built
- 2021
- 4 years old
- Condition
- Good
- inspected October 2023
- Type
- Slab
- Prestressed Concrete
- Length
- 73 ft
- 1 main span
- Daily traffic
- 461
- 2023 count
- Owner
- State
- State Highway Agency
About this bridge
MT-43 FH 20 over Trail Creek is a prestressed concrete slab carrying MT-43 FH 20 over Trail Creek in Beaverhead County, Montana. It was built in 2021, so it is 4 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 461 vehicles a day, roughly 11% of them trucks, projected to reach 484 by 2043. The structure is 73 ft (22.1 m) long and 32 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 | 8 Very Good | No problems noted. |
| Substructure | 8 Very Good | No problems noted. |
| Channel and channel protection | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was MT-43 FH 20 over Trail Creek built?
It was built in 2021, making it 4 years old in 2025.
What condition is MT-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 October 2023.
How much traffic does MT-43 FH 20 over Trail Creek carry?
About 461 vehicles per day (2023 count), of which roughly 11% are trucks.
How long is MT-43 FH 20 over Trail Creek?
The structure is 73 ft (22.1 m) long with a longest span of 70 ft (21.3 m) and a deck 32 ft wide.
Who owns MT-43 FH 20 over Trail Creek?
It is owned by the State Highway Agency.