US 12 over Big Canyon Creek
GoodNez Perce County, Idaho · 5.9 W. Orofino · Structure no. 000000000010405
- Built
- 1984
- 41 years old
- Condition
- Good
- inspected February 2021
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete
- Length
- 120 ft
- 1 main span
- Daily traffic
- 3,500
- 2023 count
- Owner
- State
- State Highway Agency
About this bridge
US 12 over Big Canyon Creek is a prestressed concrete stringer/multi-beam or girder carrying US 12 over Big Canyon Creek in Nez Perce County, Idaho. It was built in 1984, so it is 41 years old, younger than the Idaho average of 45.3 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 3,500 vehicles a day, roughly 17% of them trucks, projected to reach 5,250 by 2042. The structure is 120 ft (36.6 m) long and 46 ft wide. If it were closed, the detour would be 8.1 mi (13 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 | 8 Very Good | No problems noted. |
| 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 US 12 over Big Canyon Creek built?
It was built in 1984, making it 41 years old in 2025.
What condition is US 12 over Big Canyon 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 February 2021.
How much traffic does US 12 over Big Canyon Creek carry?
About 3,500 vehicles per day (2023 count), of which roughly 17% are trucks.
How long is US 12 over Big Canyon Creek?
The structure is 120 ft (36.6 m) long with a longest span of 117 ft (35.8 m) and a deck 46 ft wide.
Who owns US 12 over Big Canyon Creek?
It is owned by the State Highway Agency.