Northbound I-405 Weekend Closure: April 17-20

Published on April 15, 2026

Northbound I-405 Closure graphic with highway I-405 grayed out in the background

The Washington State Department of Transportation (WSDOT) will close Northbound I-405 from North Southport Drive/Northeast Sunset Boulevard (Exit 5) to Coal Creek Parkway Southeast (Exit 10) from 11:30 p.m. Friday, April 17 to 4 a.m. Monday, April 20. 

Detour signs will be in place.

 


Detour Map of closure on NB I-405 rerouting to Duvall and Coal Creek Parkway - blue showing

Crews with WSDOT will excavate drainage crossings, complete full pavement replacements, and perform a traffic switch as part of the I-405/Renton to Bellevue Widening and Express Toll Lanes Project. When complete, this project will extend the two-lane express toll system between Renton and Lynnwood. 

Find other traffic impacts at rentonwa.gov/trafficmap.  

 

Tagged as: