Trail Creek RD over Mason Creek 059
GoodCuster County, Montana · 49M E Miles City · Structure no. L09302008+02001
- Built
- 2016
- 9 years old
- Condition
- Good
- inspected April 2023
- Type
- Tee Beam
- Prestressed Concrete
- Length
- 80 ft
- 1 main span
- Daily traffic
- 100
- 2025 count
- Owner
- County
- County Highway Agency
About this bridge
Trail Creek RD over Mason Creek 059 is a prestressed concrete tee beam carrying Trail Creek RD over Mason Creek 059 in Custer County, Montana. It was built in 2016, so it is 9 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 100 vehicles a day, roughly 3% of them trucks, projected to reach 100 by 2040. The structure is 80 ft (24.4 m) long and 26 ft wide. If it were closed, the detour would be 60.3 mi (97 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 | 8 Very Good | No problems noted. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Trail Creek RD over Mason Creek 059 built?
It was built in 2016, making it 9 years old in 2025.
What condition is Trail Creek RD over Mason Creek 059 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 April 2023.
How much traffic does Trail Creek RD over Mason Creek 059 carry?
About 100 vehicles per day (2025 count), of which roughly 3% are trucks.
How long is Trail Creek RD over Mason Creek 059?
The structure is 80 ft (24.4 m) long with a longest span of 65 ft (19.8 m) and a deck 26 ft wide.
Who owns Trail Creek RD over Mason Creek 059?
It is owned by the County Highway Agency.