Multiple Washington State Department of Transportation (WSDOT) projects will impact I-405, I-90, and I-5 through Friday, Sept. 4, with overnight and nightly closures scheduled.
I-405 will see up to two southbound lanes closed from milepost 12 to Coal Creek Parkway from 9 p.m. Thursday, Sept. 3, to 5 a.m. Friday, Sept. 4. Northbound I-405 will have lane closures from milepost 7 to 8. 5 nightly from 9 p.m. Monday, Aug. 31, to 4:30 a.m. Friday, Sept. 4. I-90's eastbound Factoria Boulevard off-ramp will close nightly until Sept. 4.
I-5 will have single-lane reductions near Alger/Lake Samish Road (exit 240) from 8 p.m. to 5 a.m. nightly through Sept. 4 for fish passage construction. SR 4 will have a single lane closed weekdays from 7:30 a.m. to 5 p.m. through Sept. 11 for gas main work.