Tumwater, WA – Semi-Truck Crash on I-5 Near Custer Way, Causes Injuries

Tumwater, WA (November 5, 2025) – A major traffic incident involving a semi-truck and four additional vehicles caused injuries on northbound Interstate 5 near Custer Way on Wednesday, November 5. According to the Washington State Department of Transportation (WSDOT), the crash happened around 12:14 p.m. at milepost 104. Trooper Daniel Southard stated that the semi-truck struck a right-side barrier before jackknifing across lanes, blocking traffic and triggering a four-car collision in the resulting backup.

Paramedics transported one individual from the secondary crash to a nearby hospital for precautionary evaluation. Fortunately, no serious injuries were reported. Both crashes forced the closure of two northbound lanes until about 1:36 p.m. while crews cleared the wreckage and investigators examined the scene. Authorities noted that this stretch of I-5 has recently seen multiple semi-truck accidents under wet conditions.

The Washington State Patrol is continuing its investigation into both incidents to determine contributing factors.

We extend our best wishes to everyone affected by the crash and hope for their swift recovery.

If you were injured in a truck or multi-vehicle crash on I-5, reach out to our experienced car accident lawyers today or call (888) 511-4558 to discuss your legal options.