US 212 over Rock Creek
GoodCarbon County, Montana · 2M N Roberts · Structure no. P00028084+03671
- Built
- 2001
- 24 years old
- Condition
- Good
- inspected November 2023
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete
- Length
- 121 ft
- 1 main span
- Daily traffic
- 2,491
- 2023 count
- Owner
- State
- State Highway Agency
About this bridge
US 212 over Rock Creek is a prestressed concrete stringer/multi-beam or girder carrying US 212 over Rock Creek in Carbon County, Montana. It was built in 2001, so it is 24 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 2,491 vehicles a day, roughly 3% of them trucks, projected to reach 2,616 by 2043. The structure is 121 ft (37 m) long and 42 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 212 over Rock Creek built?
It was built in 2001, making it 24 years old in 2025.
What condition is US 212 over Rock 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 November 2023.
How much traffic does US 212 over Rock Creek carry?
About 2,491 vehicles per day (2023 count), of which roughly 3% are trucks.
How long is US 212 over Rock Creek?
The structure is 121 ft (37 m) long with a longest span of 121 ft (37 m) and a deck 42 ft wide.
Who owns US 212 over Rock Creek?
It is owned by the State Highway Agency.