Washington Department of Transportation press release:
Northbound I-5 is about to get safer for drivers, but we’ll need to shut down three out of five lanes in South Seattle to get the job done.
Beginning at 8 p.m. Friday, March 29 until 5 a.m. Monday, April 1, northbound I-5 will be reduced down to two lanes between South Albro Place and the West Seattle Bridge.
During the closures, crews will replace four expansion joints that have taken a beating from 50 years of traffic. When expansion joints get old they can pop up, causing unsafe obstacles, not to mention costly emergency repairs and huge backups on I-5.
Here are a few tips to navigate around the northbound I-5 lane closures:
Buddy up. Carpool or take public transportation into Seattle from SeaTac, south King County and Pierce County.
Take an alternate route, like northbound I-405 to westbound I-90 or SR 599 to SR 99.
Be prepared for extra traffic on these alternate routes, and add extra time to your trips.

Lastly, before you head out, remember to check the What’s Happening Now page and the Seattle Area Traffic map for the latest look on traffic. We’ll also update our Twitter feed with accurate travel times and information on the best alternate routes to take. Follow us @WSDOT_Traffic.