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, Oct. 31 - Saturday, Nov. 8


    Saturday, Nov. 1

    • Crews will close the four left lanes of northbound I-5 between South 188th Street and the I-405 exit in Renton from 11:59 p.m. Saturday to 4 a.m. Sunday.


    SR 99 corridor

    Monday, Nov. 3 - Tuesday, Nov. 4

    • One lane of southbound SR 99 will be closed each night between Valley and Thomas streets from 8 p.m. to 5 a.m. 

    Saturday, Nov. 8

    • Seattle Department of Transportation crews will close both directions of SR 99 through the Battery Street Tunnel from 9 p.m. Saturday to 8 a.m. Sunday.



    Starting Monday, Nov. 3

    • Mercer Corridor Project construction will close the far right lane of northbound Fifth Avenue North around-the-clock between Harrison and Republican streets. A second northbound lane on Fifth Avenue North will be closed on weekdays from 7 a.m. to 3 p.m.
    — more —

Current Conditions

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