Why has there been so many high-profile semi crashes in the Seattle metro area lately?

Here’s a sample of what we found in just the last few weeks in King County and Pierce County.

On April 5, a truck driver was killed when his vehicle’s brakes failed on a downhill slope in Tacoma, forcing him to crash the vehicle into a building.

A day later, brakes failed in another tractor-trailer, according to the Washington State Police. The truck collided with two other vehicles on West Valley Highway (SR 181).


On April 12, a pedestrian was seriously injured after being struck by semi truck on a ramp to I-5 near Mill Creek.

April 15: A semi crashes on I-5 near Mercer Avenue, and partially dangles off the freeway overpass.

A week later, a tractor-trailer turned over on westbound I-90, east of I-5, blocking two lanes for hours.

On April 27, a serious injury pile-up on SR-18 in Federal Way involved two semis and several vehicles.

The very next day, the driver of the semi-truck fell asleep and struck a concrete barrier on I-5 in Lakewood. The truck and trailer rolled over, blocking northbound traffic for several hours.

The day after that, a semi-truck rolled into the ditch on SR-302 in Gig Harbor. The trucker was driving too fast to stop for traffic ahead.