SR 529 over Snohomish River

Poor Condition72 years old16,286 vehicles/day

Location

StateWashington
CountySnohomish
Location4.7 N Jct SR 529 Spur
CarriesSR 529
CrossesSnohomish River
Coordinates48.01267, -122.18931

Condition Ratings

Overall ConditionPoor
Deck6 (Satisfactory)
Superstructure4 (Poor)
Substructure6 (Satisfactory)
Channel/Waterway8 (Very Good)
Scour Critical3 — Scour critical

Physical Characteristics

MaterialSteel
DesignMovable - Lift
Total Length2464.9 ft (751.3 m)
Max Span240.2 ft (73.2 m)
Deck Width34.8 ft (10.6 m)
Deck Area7963.8 sq m
Main Spans1
Year Built1954

Traffic

Avg Daily Traffic16,286 (2023)
Truck Traffic6%
Lanes On Bridge2
Lanes Under Bridge2

Inspection & Ownership

Last Inspection723
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is eligible for the National Register
Structure Number0004331A0000000

Nearby Bridges