Federal agency to investigate Waterville crash that killed 2 DOT workers

 Maine State Troopers discuss the scene of an accident that killed two workers and injured another Tuesday on Interstate 95 in Waterville. (Anna Chadwick/Staff Photographer) WATERVILLE — Federal investigators said Wednesday they are opening an investigation into a crash on Interstate 95 that killed two state transportation workers. The [crash Tuesday morning](https://www.centralmaine.com/2026/01/13/serious-crash-reported-on-i-95-in-waterville/) resulted in the deaths of James Brown, 60, and Dwayne Campbell, 51, both of Waterville. The driver of a Kia minivan, Samantha Tupper, 34, of Augusta, failed to stop at the posted sign at the end of the Exit 127 entrance ramp onto I-95 southbound, said Shannon Moss, spokesperson for the Maine Department of Public Safety. Tupper’s Kia minivan pulled out in front of a tractor trailer, Moss said. The truck struck the van and forced it into a work zone, where it hit Brown, Campbell and a third worker, who was injured and whose name has not been released. Related [2 DOT workers killed in crash on I-95 southbound in Waterville](https://www.centralmaine.com/2026/01/13/serious-crash-reported-on-i-95-in-waterville/) The National Transportation Safety Board will investigate the crash and is sending investigators to Maine, a spokesperson said in an email. The investigators are expected to arrive “within the next day or so... --- *Note: This is a summarized excerpt. Click the source link above to read the full story.*