EB I-90 over Lake Washington

Good Condition86 years old68,544 vehicles/day

Location

StateWashington
CountyKing
Location3.8 E Jct I-5
CarriesEB I-90
CrossesLake Washington
Coordinates47.58926, -122.25577

Condition Ratings

Overall ConditionGood
Deck7 (Good)
Superstructure7 (Good)
Substructure7 (Good)
Channel/Waterway8 (Very Good)
Scour Critical5 — Stable for scour

Physical Characteristics

MaterialSteel
DesignArch - Thru
Total Length890.1 ft (271.3 m)
Max Span227.0 ft (69.2 m)
Deck Width55.1 ft (16.8 m)
Deck Area4557.8 sq m
Main Spans1
Year Built1940 (reconstructed 1992)

Traffic

Avg Daily Traffic68,544 (2023)
Truck Traffic3%
Lanes On Bridge4
Lanes Under Bridge2

Inspection & Ownership

Last Inspection523
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is on the National Register of Historic Places
Structure Number000000KP0000000

Nearby Bridges