SR 530 over Boulder Creek
GoodSnohomish County, Washington · 19.0 E JCT SR 9 · Structure no. 0006897A0000000
- Built
- 1962
- 63 years old, rebuilt 1996
- Condition
- Good
- inspected April 2023
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete
- Length
- 165 ft
- 2 main spans
- Daily traffic
- 3,586
- 2023 count
- Owner
- State
- State Highway Agency
About this bridge
SR 530 over Boulder Creek is a prestressed concrete stringer/multi-beam or girder carrying SR 530 over Boulder Creek in Snohomish County, Washington. It was built in 1962 and reconstructed in 1996, so it is 63 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 3,586 vehicles a day, roughly 14% of them trucks, projected to reach 5,092 by 2039. The structure is 165 ft (50.3 m) long and 35 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 | 7 Good | Some minor problems. |
| Substructure | 7 Good | Some minor problems. |
| Channel and channel protection | 6 Satisfactory | Structural elements show some minor deterioration. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was SR 530 over Boulder Creek built?
It was built in 1962, making it 63 years old in 2025. It was reconstructed in 1996.
What condition is SR 530 over Boulder 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 April 2023.
How much traffic does SR 530 over Boulder Creek carry?
About 3,586 vehicles per day (2023 count), of which roughly 14% are trucks.
How long is SR 530 over Boulder Creek?
The structure is 165 ft (50.3 m) long with a longest span of 78 ft (23.8 m) and a deck 35 ft wide.
Who owns SR 530 over Boulder Creek?
It is owned by the State Highway Agency.