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
Coordinates48.04014, -122.17900

Condition Ratings

Overall ConditionFair
Deck6 (Satisfactory)
Superstructure6 (Satisfactory)
Substructure7 (Good)
Scour CriticalNot applicable

Physical Characteristics

MaterialPrestressed Concrete
DesignStringer/Multi-beam
Total Length245.1 ft (74.7 m)
Max Span94.2 ft (28.7 m)
Deck Width55.4 ft (16.9 m)
Deck Area1262.4 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 Number0008372A0000000

Nearby Bridges