US 12 over Naches River
GoodYakima County, Washington · 34.2 E Lewis CO · Structure no. 0014917A0000000
- Built
- 1996
- 29 years old
- Condition
- Good
- inspected September 2023
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete
- Length
- 327 ft
- 3 main spans
- Daily traffic
- 2,624
- 2023 count
- Owner
- State
- State Highway Agency
About this bridge
US 12 over Naches River is a prestressed concrete stringer/multi-beam or girder carrying US 12 over Naches River in Yakima County, Washington. It was built in 1996, so it is 29 years old, younger than the Washington average of 49.8 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 2,624 vehicles a day, roughly 15% of them trucks, projected to reach 3,256 by 2039. The structure is 327 ft (99.7 m) long and 43 ft wide. If it were closed, the detour would be 98.8 mi (159 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 | 8 Very Good | No problems noted. |
| 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 Naches River built?
It was built in 1996, making it 29 years old in 2025.
What condition is US 12 over Naches River 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 2023.
How much traffic does US 12 over Naches River carry?
About 2,624 vehicles per day (2023 count), of which roughly 15% are trucks.
How long is US 12 over Naches River?
The structure is 327 ft (99.7 m) long with a longest span of 109 ft (33.2 m) and a deck 43 ft wide.
Who owns US 12 over Naches River?
It is owned by the State Highway Agency.