I-5 over SR 529 NB Ramp

Fair Condition58 years old64,989 vehicles/day

Location

StateWashington
CountySnohomish
Location4.4 N Jct US 2
CarriesI-5
CrossesSR 529 NB Ramp
Coordinates48.04000, -122.17917

Condition Ratings

Overall ConditionFair
Deck7 (Good)
Superstructure6 (Satisfactory)
Substructure6 (Satisfactory)
Scour CriticalNot applicable

Physical Characteristics

MaterialPrestressed Concrete
DesignStringer/Multi-beam
Total Length229.0 ft (69.8 m)
Max Span94.2 ft (28.7 m)
Deck Width55.4 ft (16.9 m)
Deck Area1179.6 sq m
Main Spans3
Year Built1968

Traffic

Avg Daily Traffic64,989 (2023)
Truck Traffic6%
Lanes On Bridge3
Lanes Under Bridge2

Inspection & Ownership

Last Inspection224
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Structure Number0008372B0000000

Nearby Bridges