SEATTLE, Wash. — A 3-car, semi-truck crash is currently blocking multiple lanes of northbound I-5, Washington State Patrol Trooper Rick Johnson confirms.
#BlockingCollision There is a 3 car / Semi injury collision blocking multiple lanes NB I-5 near Michigan. Diesel is leaking from the truck. Use cation through the area.
— Trooper Rick Johnson (@wspd2pio) October 20, 2026
The crash is close to the Michigan Street exit, in the middle of the stretch near Boeing Field.
Three lanes are closed, according to the Washington State Department of Transportation (WSDOT). WSDOT says the HOV lane, as well as the two right lanes, are closed.
Trooper Johnson says that one person suffered a broken arm, and WSDOT confirms emergency responders are at the location of the crash.
Seattle Fire Department clarified on X that two people were hurt, and both were taken to a hospital in stable condition.
Trooper Johnson added that diesel leaked from the truck and advises those in the area to use caution.
Hazmat response following reports of a collision on northbound I-5 at Michigan exit where a semi-truck is leaking a significant amount of diesel fuel.
— Seattle Fire Dept. (@SeattleFire) October 20, 2026
This is an ongoing story, check back for updates.
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