Traffic Highlights

Traffic Highlights

Welcome to your headquarters for viaduct-related traffic information. Major traffic changes are highlighted on this page. To your right are links to a full list of closures, traffic cameras, and other resources to help you find your way. You can also sign up to receive weekly emails about upcoming detours and closures.

  • Construction highlights for Friday, July 31 - Friday, Aug. 7


    Friday, July 31 through Sunday, Aug. 2

    • Crews will close the I-90 mainline in both directions between Seattle and Island Crest Way on Mercer Island during the Seafair Airshow from 11:50 a.m. to 2:40 p.m. each day.
      • Multiple ramps in this area will also close intermittently as needed.
    • Crews will also close the I-90 express lanes during these hours.

    Monday, Aug. 3 through Wednesday, Aug. 5

    • Crews will close a single lane of the I-5 express lanes across the Ship Canal Bridge from 9 a.m. to 3 p.m. daily.
    — more —

Current Conditions

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