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, September 12 - Friday, September 19

    SR 99 corridor

    Sunday, Sept. 14 - Tuesday, Sept. 16

    • Crews will close up to two lanes in both directions of SR 99 between South Atlantic and South Spokane streets from 9 p.m. to 5 a.m. each night.

    Wednesday, Sept. 17 - Thursday, Sept. 18

    • Crews will close up to two lanes on northbound SR 99 between the Spokane Street off-ramp and Atlantic Street from 10 p.m. to 5 a.m.

    Regional

    Saturday, Sept. 13 - Monday, Sept. 15

    • Crews will close both directions of SR 520 between Montlake Boulevard Northeast and I-405 from 9 p.m. Saturday to 5 a.m. Monday.  

    Saturday, Sept. 13 - Monday, Sept. 15

    • The ramp from southbound I-5 to SR 900/Martin Luther King Boulevard South will be closed from 11 p.m. to 5 a.m. each night.

    North

    Saturday, Sept. 13

    • Mercer Corridor Project crews will close one lane in each direction of Mercer Street between  Fifth Avenue North and Ninth Avenue North from 8 a.m. to 5 p.m.  
    — more —

Current Conditions




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