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 24 - Friday, July 31


    Saturday, July 25

    • Crews will close all lanes of southbound I-5 in the vicinity of the Washington State Convention and Trade Center from 12:30 a.m. to 5 a.m. Saturday.
      • The on-ramp from Mercer Street to southbound I-5 will be closed during this time.
      • The on-ramp from Yale Avenue and Howell Street to southbound I-5 will also be closed during this time.


    • The Seafair Pirate Run will close portions of northbound SR 99 between South Royal Brougham Way and the south end of the Battery Street Tunnel between 6:30 p.m. to 9 p.m.


    Saturday, July 25 until Sunday, July 26

    • Crews will close the I-5 express lanes between downtown Seattle and Northgate from 8 a.m. to 11 a.m. Express lanes will reopen southbound at 11:30 a.m. each day.


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Current Conditions

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