US 12 over Cowiche Creek
GoodYakima County, Washington · 13.7 E JCT SR 410 · Structure no. 0001603A0000000
- Built
- 1932
- 93 years old, rebuilt 1970
- Condition
- Good
- inspected June 2023
- Type
- Tee Beam
- Concrete
- Length
- 53 ft
- 1 main span
- Daily traffic
- 10,931
- 2023 count
- Owner
- State
- State Highway Agency
About this bridge
US 12 over Cowiche Creek is a concrete tee beam carrying US 12 over Cowiche Creek in Yakima County, Washington. It was built in 1932 and reconstructed in 1970, so it is 93 years old, older 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 10,931 vehicles a day, roughly 12% of them trucks, projected to reach 13,825 by 2039. The structure is 53 ft (16.2 m) long and 86 ft wide. If it were closed, the detour would be 13 mi (21 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 | 8 Very Good | No problems noted. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was US 12 over Cowiche Creek built?
It was built in 1932, making it 93 years old in 2025. It was reconstructed in 1970.
What condition is US 12 over Cowiche 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 June 2023.
How much traffic does US 12 over Cowiche Creek carry?
About 10,931 vehicles per day (2023 count), of which roughly 12% are trucks.
How long is US 12 over Cowiche Creek?
The structure is 53 ft (16.2 m) long with a longest span of 50 ft (15.2 m) and a deck 86 ft wide.
Who owns US 12 over Cowiche Creek?
It is owned by the State Highway Agency.