I-90 over W Snoqualmie Ic

Fair Condition50 years old26,372 vehicles/day

Location

StateWashington
CountyKing
Location1.7 E Jct SR 18
CarriesI-90
CrossesW Snoqualmie Ic
Coordinates47.51344, -121.84919

Condition Ratings

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

Physical Characteristics

MaterialPrestressed Concrete
DesignBox Beam - Multiple
Total Length165.0 ft (50.3 m)
Max Span159.1 ft (48.5 m)
Deck Width70.9 ft (21.6 m)
Deck Area1086.5 sq m
Main Spans1
Year Built1976

Traffic

Avg Daily Traffic26,372 (2023)
Truck Traffic18%
Lanes On Bridge3
Lanes Under Bridge2

Inspection & Ownership

Last Inspection623
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Structure Number0009900D0000000

Nearby Bridges