Smokey Point Blvd over South Slough
FairSnohomish County, Washington · 0.3 S JCT SR 530 · Structure no. 080845000000000
- Built
- 1918
- 107 years old, rebuilt 2007
- Condition
- Fair
- inspected September 2024
- Type
- Arch - Deck
- Concrete
- Length
- 184 ft
- 2 main spans
- Daily traffic
- 5,889
- 2024 count
- Owner
- City
- City or Municipal Highway Agency
About this bridge
Smokey Point Blvd over South Slough is a concrete arch - deck carrying Smokey Point Blvd over South Slough in Snohomish County, Washington. It was built in 1918 and reconstructed in 2007, so it is 107 years old, older than the Washington average of 49.8 years.
The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 5 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.
It carries about 5,889 vehicles a day, roughly 17% of them trucks, projected to reach 10,000 by 2045. The structure is 184 ft (56 m) long and 31 ft wide. If it were closed, the detour would be 5 mi (8 km).
Location
Open in Google MapsCondition and inspection
The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 7 Good | Some minor problems. |
| Superstructure | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Substructure | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Channel and channel protection | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Smokey Point Blvd over South Slough built?
It was built in 1918, making it 107 years old in 2025. It was reconstructed in 2007.
What condition is Smokey Point Blvd over South Slough in?
The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in September 2024.
How much traffic does Smokey Point Blvd over South Slough carry?
About 5,889 vehicles per day (2024 count), of which roughly 17% are trucks.
How long is Smokey Point Blvd over South Slough?
The structure is 184 ft (56 m) long with a longest span of 80 ft (24.4 m) and a deck 31 ft wide.
Who owns Smokey Point Blvd over South Slough?
It is owned by the City or Municipal Highway Agency.