SR 530 over N Fk Stillaguamish River
GoodSnohomish County, Washington · 12.7 E JCT SR 9 · Structure no. 0004174A0000000
- Built
- 1949
- 76 years old
- Condition
- Good
- inspected August 2024
- Type
- Box Beam or Girders - Multiple
- Concrete Continuous
- Length
- 300 ft
- 3 main spans
- Daily traffic
- 4,211
- 2023 count
- Owner
- State
- State Highway Agency
About this bridge
SR 530 over N Fk Stillaguamish River is a concrete continuous box beam or girders - multiple carrying SR 530 over N Fk Stillaguamish River in Snohomish County, Washington. It was built in 1949, so it is 76 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 4,211 vehicles a day, roughly 12% of them trucks, projected to reach 5,980 by 2039. The structure is 300 ft (91.4 m) long and 31 ft wide. 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 |
|---|---|---|
| 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 SR 530 over N Fk Stillaguamish River built?
It was built in 1949, making it 76 years old in 2025.
What condition is SR 530 over N Fk Stillaguamish 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 August 2024.
How much traffic does SR 530 over N Fk Stillaguamish River carry?
About 4,211 vehicles per day (2023 count), of which roughly 12% are trucks.
How long is SR 530 over N Fk Stillaguamish River?
The structure is 300 ft (91.4 m) long with a longest span of 180 ft (54.9 m) and a deck 31 ft wide.
Who owns SR 530 over N Fk Stillaguamish River?
It is owned by the State Highway Agency.