Tukwila, WA – An incident has blocked all lanes on southbound Interstate 5 just south of I-405 (milepost 154), according to a report from WSDOT Traffic. The situation is causing major delays in the area.
Drivers are urged to avoid the area and seek alternate routes until the scene is cleared. No details have been released yet on the nature of the incident or estimated time for reopening the lanes.
Stay tuned for updates as more information becomes available.
On I-5 southbound just south of I-405 (Tukwila) (MP 154) there is an incident blocking all lanes.
— WSDOT Traffic (@wsdot_traffic) October 18, 2025