SR 522 over Lyon Creek
GoodKing County, Washington · 1.5 E JCT SR 523 · Structure no. 002004570000000
- Built
- 2015
- 10 years old
- Condition
- Good
- inspected October 2023
- Type
- Culvert
- Concrete
- Length
- 27 ft
- 1 main span
- Daily traffic
- 35,374
- 2023 count
- Owner
- State
- State Highway Agency
About this bridge
SR 522 over Lyon Creek is a concrete culvert carrying SR 522 over Lyon Creek in King County, Washington. It was built in 2015, so it is 10 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 35,374 vehicles a day, roughly 3% of them trucks, projected to reach 60,505 by 2039. The structure is 27 ft (8.2 m) long. If it were closed, the detour would be 1.2 mi (2 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 SR 522 over Lyon Creek built?
It was built in 2015, making it 10 years old in 2025.
What condition is SR 522 over Lyon 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 October 2023.
How much traffic does SR 522 over Lyon Creek carry?
About 35,374 vehicles per day (2023 count), of which roughly 3% are trucks.
How long is SR 522 over Lyon Creek?
The structure is 27 ft (8.2 m) long with a longest span of 27 ft (8.2 m).
Who owns SR 522 over Lyon Creek?
It is owned by the State Highway Agency.