SR 531 over I-5

Fair Condition21 years old32,637 vehicles/day

Location

StateWashington
CountySnohomish
LocationJct I-5
CarriesSR 531
CrossesI-5
Coordinates48.15233, -122.18939

Condition Ratings

Overall ConditionFair
Deck6 (Satisfactory)
Superstructure7 (Good)
Substructure7 (Good)
Scour CriticalNot applicable

Physical Characteristics

MaterialPrestressed Concrete Continuous
DesignStringer/Multi-beam
Total Length243.1 ft (74.1 m)
Max Span121.4 ft (37 m)
Deck Width98.8 ft (30.1 m)
Deck Area2230.4 sq m
Main Spans2
Year Built2005

Traffic

Avg Daily Traffic32,637 (2023)
Truck Traffic3%
Lanes On Bridge6
Lanes Under Bridge8

Inspection & Ownership

Last Inspection824
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceHistorical significance is not determined
Structure Number0016801A0000000

Nearby Bridges