I-405 will see multiple lane closures starting Friday evening, August 21, through Monday morning, August 22. The left express toll lane of northbound I-405 will close nightly from 8 p.m. to 5 a.m. through Sunday, August 21, with additional southbound lane closures from 11:30 p.m. to 5 a.m. Saturday morning.
I-5 will continue overnight lane closures through September 4 for fish passage construction, with the left lane of northbound I-5 closing nightly from 8 p.m. to 5 a.m. north of North Lake Samish. The I-5 project between Rogers Road and SR 505 will have intermittent closures nightly until September 30.