US 12 over Unnamed Tributary
GoodGrays Harbor County, Washington · 9.1 E JCT US 101 · Structure no. 0019211A0000000
- Built
- 2018
- 7 years old
- Condition
- Good
- inspected December 2024
- Type
- Culvert
- Concrete
- Length
- 36 ft
- 1 main span
- Daily traffic
- 21,466
- 2023 count
- Owner
- State
- State Highway Agency
About this bridge
US 12 over Unnamed Tributary is a concrete culvert carrying US 12 over Unnamed Tributary in Grays Harbor County, Washington. It was built in 2018, so it is 7 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 21,466 vehicles a day, roughly 6% of them trucks, projected to reach 23,274 by 2039. The structure is 36 ft (11 m) long. If it were closed, the detour would be 3.1 mi (5 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 |
|---|---|---|
| Channel and channel protection | 8 Very Good | No problems noted. |
| Culvert | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was US 12 over Unnamed Tributary built?
It was built in 2018, making it 7 years old in 2025.
What condition is US 12 over Unnamed Tributary 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 December 2024.
How much traffic does US 12 over Unnamed Tributary carry?
About 21,466 vehicles per day (2023 count), of which roughly 6% are trucks.
How long is US 12 over Unnamed Tributary?
The structure is 36 ft (11 m) long with a longest span of 33 ft (10.1 m).
Who owns US 12 over Unnamed Tributary?
It is owned by the State Highway Agency.