Weekly update of construction closures in King County

Use the list or specified areas below to help plan your commute around construction and maintenance activities in King County. The information updates frequently, so please check back often.


If a highway is not listed below, there are no scheduled lane closures at this time, although emergency lane closures may still occur.


SR 18 | SR 99 | SR 161 | SR 509 | SR 518 | SR 522 | SR 599


For closures on major highways, please see the specialized routes listed below:



Downtown Seattle/ SODO


Looking for downtown Seattle/SODO construction closures? Our Seattle/SODO page lists closures and construction on state highways and city streets in Seattle, and near the stadiums, international district, and ferry terminals. Get more information.


I-5: Federal Way to Mountlake Terrace


Looking for construction on I-5? This page lists closures on I-5 from Federal Way to Mountlake Terrace. Get more information.



I-405: Renton to Bothell


Looking for I-405 construction closures? This page lists closures on I-405 from Renton to Bothell. Get more information.



I-90 & SR 520



Looking for eastside closures? This page lists closures on SR 520 from Seattle to Redmond and on I-90 from Seattle to North Bend.  Get more information.


Special Events

Curious about a special event and how your commute may be affected? Visit our special events websitefor more information.



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