Multiple lanes of northbound I-5 near SR 599 at milepost 156 were closed after a fatal collision Friday morning, March 7, 2025 in Tukwila.

Washington State Patrol said the crash occurred on the SR 599 / Interurban overpass, where one of the vehicles ended up going off the overpass onto northbound I-5.

The left lane on the northbound I-5 off-ramp to SR 599 was also closed.

Emergency crews were on scene.

There is no estimate when lanes will reopen, and drivers should expect delays in the area.

Real-time travel information is available from the WSDOT mobile app, the WSDOT Travel Center Map or by signing up for WSDOT’s email updates.

Photo courtesy Washington State Patrol.