US 12 over Horse Creek
GoodRosebud County, Montana · 24M NW Forsyth · Structure no. P00014246+03161
- Built
- 2012
- 13 years old
- Condition
- Good
- inspected September 2024
- Type
- Tee Beam
- Prestressed Concrete
- Length
- 90 ft
- 3 main spans
- Daily traffic
- 222
- 2023 count
- Owner
- State
- State Highway Agency
About this bridge
US 12 over Horse Creek is a prestressed concrete tee beam carrying US 12 over Horse Creek in Rosebud County, Montana. It was built in 2012, so it is 13 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 222 vehicles a day, roughly 14% of them trucks, projected to reach 233 by 2043. The structure is 90 ft (27.5 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 | 7 Good | Some minor problems. |
| Substructure | 7 Good | Some minor problems. |
| 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 US 12 over Horse Creek built?
It was built in 2012, making it 13 years old in 2025.
What condition is US 12 over Horse 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 September 2024.
How much traffic does US 12 over Horse Creek carry?
About 222 vehicles per day (2023 count), of which roughly 14% are trucks.
How long is US 12 over Horse Creek?
The structure is 90 ft (27.5 m) long with a longest span of 30 ft (9.1 m) and a deck 32 ft wide.
Who owns US 12 over Horse Creek?
It is owned by the State Highway Agency.