Millis, MA — December 18, 2025, one person was injured in a cement truck accident at about 1:30 p.m. at Main Street and Village Street.
Authorities said a cement truck overturned at the intersection after being involved in a crash with a sedan.
The driver of the sedan, a 68-year-old man, was flown to a Boston hospital for treatment of serious injuries, according to authorities.
The cement truck driver was not hurt, authorities said.
Authorities have not released any additional information about the Norfolk County crash at this time.
Commentary by Attorney Michael Grossman
When a cement truck flips over in a crash with a sedan, a lot of folks want to know: how exactly does that happen? Cement trucks are massive, heavy-duty vehicles built for stability. So when one tips over in an intersection, it raises serious questions about speed, turning radius, weight distribution and even how the vehicle was loaded.
At this point, all we know is that the crash involved a cement truck and a sedan, and that the sedan driver suffered serious injuries. We don’t yet know how the two vehicles collided or what caused the truck to overturn. Was the cement truck turning too fast for its load? Was it fully loaded, partially loaded or running empty at the time? Those details make a big difference, but so far they haven’t been made public.
Depending on whether the truck was moving straight through the intersection or making a turn, different questions arise. For example, loaded cement mixers are known to have high centers of gravity, which can cause them to tip during sharp turns. But the way to confirm or rule that out is through physical evidence and vehicle data.
Investigators should be looking closely at the truck’s engine control module, the black box that records speed, braking and steering inputs. Dash cams or in-cab video could help clarify how the driver handled the truck in the moments leading up to the crash. And just as important: Was the driver distracted? A look at phone records could show whether the driver was on a call or texting at the time.
It’s also worth asking whether the truck was properly maintained and whether the driver was adequately trained. Operating a cement mixer isn’t like driving a regular semi. The load is constantly shifting inside the drum, which affects how the vehicle handles. If a driver isn’t properly trained or doesn’t adjust their driving to account for that shifting weight, the truck can become unstable, especially in tight turns or sudden stops.
I’ve worked on cases where companies put drivers behind the wheel of specialty trucks like these without any meaningful vetting. In one such case, a driver had minimal experience with mixer trucks but was still cleared to drive after a short ride-along. When that truck later tipped in a city intersection, investigators found that the company’s training policies were practically nonexistent.
So while it’s easy to assume this was just an unfortunate accident, I’d caution against jumping to conclusions. There’s a reason heavy commercial vehicles like cement trucks are subject to strict rules, because when something goes wrong, people get seriously hurt. The only way to figure out where the responsibility lies is by gathering all the facts: driver actions, vehicle condition, load weight, company policies and whether the crash could have been avoided if better precautions had been taken.
Key Takeaways:
- It’s not yet clear what caused the cement truck to overturn or how the collision with the sedan occurred.
- Critical evidence includes the truck’s black box data, dash cam footage and the driver’s phone records.
- Cement mixers have unique handling risks due to shifting loads; proper training and handling are key.
- Investigators should also examine company policies on vehicle maintenance and driver qualification.
- Only a full investigation will reveal whether this crash was avoidable and who may be responsible.
