Interstate 5 turned into a parking lot near Chehalis on Thursday evening after a motorist barricaded inside a vehicle brought traffic to a halt in both directions. Rush-hour drivers found themselves stuck as troopers shut down all northbound and southbound lanes near the U.S. Route 12 interchange and pushed vehicles onto local roads. Officials urged anyone who had not already hit the freeway to steer clear and brace for long delays.
What happened
According to FOX 13 Seattle, Washington State Patrol troopers say the incident started when a vehicle fled from Mason and Thurston County troopers. Spike strips were deployed on Rush Road in Chehalis, and the fleeing vehicle eventually came to a stop on southbound I-5. Troopers said there was a single person inside, and negotiators were working with that individual on scene. Officials have not said what triggered the initial pursuit.
Traffic and detours
The Washington State Patrol reported that both directions of I-5 were being diverted just before the US-12 interchange while the standoff unfolded, and warned drivers to use alternate routes. Traffic control crews and emergency responders stayed in place along the freeway as negotiations continued. Travelers moving through Lewis County were advised to check conditions and stay off that stretch of I-5 if they could.
Why this stretch matters
The Chehalis and Centralia section of I-5 is notorious for turning small problems into region-wide traffic headaches, and the state’s recent move to add ramp meters is a sign of how quickly one incident can ripple into long backups, according to WSDOT. This corridor has also seen its share of high-profile chases and standoffs in recent years, including a 2020 multi-county pursuit that ended in the death of a trooper, a case that KIRO 7 covered extensively. That track record helps explain why troopers responded in force on this busy freeway.
What officials say next
Authorities have not released the barricaded driver’s identity or said what charges might follow, and investigators said the situation was still active in the latest updates. FOX 13 Seattle reported that its information came from the Washington State Patrol and that more details are expected once troopers wrap up their work at the scene. Until then, drivers are being told to avoid I-5 near Chehalis and let the freeway clear before trying to cut through the area.
