SR 518 over 8th AVE

Fair Condition56 years old28,203 vehicles/day

Location

StateWashington
CountyKing
Location0.4 E Jct SR 509
CarriesSR 518
Crosses8th AVE
Coordinates47.46997, -122.32381

Condition Ratings

Overall ConditionFair
Deck6 (Satisfactory)
Superstructure7 (Good)
Substructure8 (Very Good)
Scour CriticalNot applicable

Physical Characteristics

MaterialPrestressed Concrete Continuous
DesignStringer/Multi-beam
Total Length174.9 ft (53.3 m)
Max Span65.9 ft (20.1 m)
Deck Width86.6 ft (26.4 m)
Deck Area1407.1 sq m
Main Spans3
Year Built1970

Traffic

Avg Daily Traffic28,203 (2023)
Truck Traffic2%
Lanes On Bridge4
Lanes Under Bridge2

Inspection & Ownership

Last Inspection324
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Structure Number0008644A0000000

Nearby Bridges