A fatal crash between a passenger car and a commercial semi has shut down State Route 9 near 84th Street NE (milepost 21), fully blocking the highway while troopers investigate, officials said Wednesday.
Officials confirm fatal collision
According to WSDOT Traffic, which shared a post from the Washington State Patrol public information officer, the crash was confirmed to be fatal and involved one car and one semi. Troopers are on scene conducting their investigation, and there is currently no estimate for when SR 9 will reopen.
Where the closure is
The collision happened around milepost 21 on SR 9 near 84th St NE, a busy stretch north of Marysville that serves both commuter and commercial traffic. A publicly viewable camera covering roughly MP 20.5 shows the section of highway affected by the closure, according to Traffic-Cams.com.
What happens next
Troopers remained at the scene Wednesday, and authorities have not released the identities of those involved or a possible cause. Investigations at fatal crash scenes can take hours, and drivers were urged to stay clear of the area while crews remove the wreckage and investigators finish their work.
Safety context on SR 9
State transportation records show SR 9 has been the focus of intersection and roundabout projects near 84th Street NE that are intended to improve safety, according to WSDOT planning documents. The upgrades are aimed at reducing collisions along this key corridor for commuters and truck traffic between Marysville and Arlington.
This story will be updated as troopers or the Washington State Patrol release additional details. Drivers should avoid SR 9 near 84th St NE and check official traffic feeds for the latest information.
