WB I-90 over Lake Washington

Fair Condition37 years old68,544 vehicles/day

Location

StateWashington
CountyKing
Location2.3 E Jct I-5
CarriesWB I-90
CrossesLake Washington
Coordinates47.59038, -122.28750

Condition Ratings

Overall ConditionFair
Deck7 (Good)
Superstructure6 (Satisfactory)
Substructure7 (Good)
Channel/Waterway8 (Very Good)
Scour Critical5 — Stable for scour

Physical Characteristics

MaterialSteel
DesignBox Beam - Single/Spread
Total Length1369.1 ft (417.3 m)
Max Span262.1 ft (79.9 m)
Deck Width63.0 ft (19.2 m)
Deck Area8012.2 sq m
Main Spans6
Year Built1989

Traffic

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

Inspection & Ownership

Last Inspection423
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Structure Number0012833B0000000

Nearby Bridges

EB I-90 over Lake Washington 0.0 mi Fair Westbound I-90 over S Transit Rr Lakeview A 0.1 mi Good I-90 over Lake Washington 0.2 mi Poor W.b. & Rev I-90 over Lake Washington 0.3 mi Poor W-n I-90 Ramp over Pedestrian-bike Path 0.9 mi Good I-90 over Rainier AVE S 0.9 mi Good I-90 over Rainier AVE 1.0 mi Fair I-90 Westbound over Sound Transit Railroad 1.3 mi Good W.b. I-90 over Lake Washington 1.3 mi Fair 12th AVE S over I-90 1.4 mi Fair