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, August 29 - Friday, September 5

    SR 99 corridor

    Tuesday, Sept. 2 to Friday, Sept. 5

    • Crews will reduce southbound SR 99 to one lane between South Atlantic Street and South Spokane Street from 10 p.m. to 5 a.m. each night.

    Tuesday, Sept. 2; Thursday, Sept. 4 - Friday, Sept. 5

    • Crews will reduce northbound SR 99 to one lane between South Spokane Street and South Atlantic Street from 10 p.m. to 5 a.m. each night. 

    North

    Tuesday, Sept. 2 to Friday, Sept. 5

    • Mercer Corridor Project crews will close the right lane of both westbound and eastbound Mercer Street between Fifth Avenue North and Dexter Avenue North from 9 a.m. to 2 p.m. each day.

    Wednesday, Sept. 3 to Thursday, Sept. 4

    • Mercer Corridor Project crews will close the right lane of westbound Mercer Street between SR 99 and Eighth Avenue North from 9 p.m. Wednesday to 5 p.m. Thursday.

    Regional

    Friday, Sept​. 5

    • Crews will close all lanes of southbound I-5 between the Stewart Street exit and the Seneca Street on-ramp from 11:30 p.m. Friday, Sept. 5 to 5 a.m. Saturday, Sept. 6. The southbound I-5 on-ramps at Mercer Street and Yale/Howell will also be closed during the same time. 
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Current Conditions




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