Southbound I-405 Weekend Closure: May 8-11

Published on May 05, 2026

Southbound-I-405-Closure-graphic-in-gray-with-I405-in-the-background.png

The Washington State Department of Transportation (WSDOT) will close southbound Interstate 405 from Coal Creek Parkway Southeast (Exit 10) to North 30th Street (Exit 6) from 11:30 p.m. Friday, May 8, to 4 a.m. Monday, May 11.

During the closure, crews will pave, excavate drainage crossings and complete a traffic switch as part of the I-405/Renton to Bellevue Widening and Express Toll Lanes Project.

 

2026-05-05 Southbound I405 detour map going from Bellevue to Renton

Additional information

Find details and other major highway closures on WSDOT’s website.

Find other traffic impacts in Renton at rentonwa.gov/trafficmap.

Contact WSDOT

Phone

Craig Smiley, I-405/SR 167 Program Communications
425-417-9658

 

24-Hour Construction Hotline
425-818-0161

 

 

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