Canton, MA (March 12, 2026) – One person died after a multi-vehicle crash that slowed traffic along Interstate 95 in Canton.
Emergency units responded around 6:20 a.m. on Wednesday, March 11, to the southbound lanes of I-95 following reports of a three-vehicle collision during the morning commute.
Authorities said the crash involved a Toyota and two other vehicles. The driver of the Toyota, identified as 22-year-old Mathew McTiernan of Marshfield, died as a result of the crash.
The collision caused significant delays in the area. Two southbound lanes of the highway were closed for several hours while crews worked at the scene and cleared the roadway.
Officials have not released additional information about the other drivers involved or whether anyone else was hurt. Authorities continue to investigate the cause of the crash, and more details will be released as soon as they become available. We extend our sincere condolences to the family of the deceased.
What Information Is Often Reviewed After Multi-Vehicle Highway Crashes
Crashes involving several vehicles on busy highways often require a detailed review of many factors. Traffic volume, vehicle speed, and vehicle spacing can all affect how a collision develops.
Investigators often examine vehicle positions, damage patterns, and skid marks on the roadway. These details can help clarify how the vehicles came into contact and the sequence of events that followed.
Weather conditions and visibility may also be reviewed, especially during early-morning travel periods when lighting conditions are changing, and commuter traffic is heavy.
Highway crashes can also create extended traffic disruptions because damaged vehicles and debris may block travel lanes. Clearing the roadway safely usually requires time for traffic to resume normal flow.
