SR 527 over I-405

Fair Condition58 years old53,140 vehicles/day

Location

StateWashington
CountySnohomish
LocationJct I-405
CarriesSR 527
CrossesI-405
Coordinates47.79444, -122.21450

Condition Ratings

Overall ConditionFair
Deck7 (Good)
Superstructure6 (Satisfactory)
Substructure7 (Good)
Scour CriticalNot applicable

Physical Characteristics

MaterialPrestressed Concrete Continuous
DesignStringer/Multi-beam
Total Length340.9 ft (103.9 m)
Max Span112.9 ft (34.4 m)
Deck Width77.4 ft (23.6 m)
Deck Area2452.0 sq m
Main Spans4
Year Built1968 (reconstructed 2001)

Traffic

Avg Daily Traffic53,140 (2023)
Truck Traffic3%
Lanes On Bridge5
Lanes Under Bridge10

Inspection & Ownership

Last Inspection124
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Structure Number0008286B0000000

Nearby Bridges