The northbound lanes of I-405 from North Southport Drive to Coal Creek Parkway Southeast will be closed day and night, from 11:30 p.m. Friday, May 15, to 4 a.m. Monday, May 18. Signed detours will be ...

The I-5, I-405, SR 99 and SR 520 closures could cause backups beyond the freeway on surface streets and alternate routes not typically impacted by heavy traffic.

Another weekend of potentially major traffic interruptions is coming to the Puget Sound corridor weekend. Drivers taking I-5, I-405, I-90 and SR 99 -- the main thoroughfares in Seattle and the region ...

Travelers across the greater Puget Sound region should plan for delays and extra congestion throughout May as crews work on major construction projects ahead of a planned pause in June for the FIFA ...

WSDOT announces overnight closures on I-405 for crucial roadwork. Plan ahead to avoid delays during your commute.