DUXBURY, Mass. — Public safety officials briefly halted all southbound traffic on Route 3 late Wednesday evening after a passenger vehicle caught fire, causing sudden delays for nighttime commuters passing through Duxbury. According to the Duxbury Fire Department, emergency crews were dispatched around 8:30 p.m. following multiple 911 calls reporting a vehicle fully engulfed in flames along Route 3 South near mile marker 21. That specific stretch of highway sits between Exit 20 (Route 3A) in South Duxbury and Exit 22 (Route 14) near the Pembroke town line.
Emergency personnel arriving on scene encountered heavy fire and thick black smoke consuming the vehicle’s engine compartment and passenger cabin. To ensure the safety of firefighters deploying hose lines and to protect passing motorists from radiant heat and poor visibility, Massachusetts State Police and local officers completely shut down all southbound travel lanes. Duxbury Fire apparatus were positioned diagonally across travel lanes upon arrival, establishing a critical physical barrier to protect first responders operating on the open highway.
Because primary shift personnel and heavy suppression apparatus were committed to the active highway incident, department leadership immediately initiated a standard recall of off-duty personnel. Off-duty firefighters responded to Duxbury fire headquarters on Tremont Street to staff secondary engines and ambulances, ensuring uninterrupted emergency medical and fire protection coverage for the rest of the community while the highway operation unfolded.
Crews on Route 3 worked swiftly to knock down the main body of the fire before soaking remaining thermal hot spots to prevent reignition from leaking fuel or wiring. The sudden highway shutdown created a moderate traffic queue for South Shore motorists traveling southbound toward Kingston and Plymouth. Drivers stuck in the backup remained stopped for roughly 30 minutes while firefighters completed overhaul operations and inspected the roadway for hazardous liquid spills.
Once the blaze was completely extinguished, heavy-duty towing services arrived on scene to clear the charred wreckage from the highway shoulder. Crews from the Massachusetts Department of Transportation were also notified to evaluate the asphalt surface for heat damage or fuel contamination. After tow operators loaded the vehicle and swept away scattered debris, public safety officials cleared the scene and fully reopened all southbound travel lanes late Wednesday night.
As of Thursday morning, authorities have not released details regarding what triggered the fire, nor have officials confirmed whether any injuries were sustained by the vehicle’s occupants prior to emergency crews arriving. The incident remains under standard review by local fire officials and the Massachusetts State Police. Public safety authorities remind drivers that vehicle fires can escalate rapidly due to high-temperature engine compartments and pressurized flammable fluids. If warning signs like sudden smoke, electrical smells, or dashboard warning lights appear while driving, motorists are urged to pull safely onto the shoulder, turn off the ignition, evacuate all passengers immediately, stand far back behind guardrails, and call 911 with their location or nearest mile marker.
