RoadworksMinor
Construction on 405 southbound
405 at milepost 18.11
...
Monday, August 31 to the morning of Friday, September 4: Two Express Toll Lanes (ETL’s) and one general purpose lane of southbound I-405 between milepost 18.11 and milepost 16.45 will be closed, nightly from 9 p.m. - 4:30 a.m.
ReportedAugust 31, 2026 at 12:00 AM PDTSeptember 4, 2026 at 04:30 AM PDT
Road
405
Source
WSDOT
Coordinates
47.67911, -122.18470
Roadworks details
Direction
S