Holt County, MO — December 31, 2025, one person was injured in a truck accident just after 1 a.m. on Interstate 29 south of Mound City.

Authorities said a semi-truck was heading north when its trailer detached because of an apparent equipment failure. The truck drove off the side of the road, as the trailer rolled into the median. A Volvo sedan that was behind the truck swerved to avoid a collision and skidded off the road, crashing into the truck before overturning.

The Volvo driver, a 64-year-old man from Omaha, NE, was hospitalized with moderate injuries after the crash, according to authorities. His name has not been made public yet.

The truck driver was not hurt, authorities said.

Authorities have not released any additional information about the Holt County crash at this time.

Commentary by Attorney Michael Grossman

When people hear about a truck trailer coming loose on the highway, their first question is usually: How does something like that even happen? After all, trailers don’t just detach themselves; something had to go wrong. Based on what’s been reported so far, it appears that an equipment failure caused the trailer to separate from the truck, which led to a chain reaction ending with a car overturned and its driver hospitalized.

The key issue here is what kind of equipment failure occurred, and why it wasn’t prevented. Did a hitch or locking mechanism fail? Was the trailer improperly secured? Or did something break mid-drive due to poor maintenance? These aren’t idle questions. Trailer separations are incredibly dangerous, and they don’t just “happen” without a contributing cause, whether mechanical, human or both.

At the very least, an incident like this calls for a deep dive into the truck’s maintenance records and inspection logs. When was the last time the trailer’s connection hardware was checked? Who signed off on it? Does the trucking company have a habit of cutting corners to keep rigs moving? I've worked on cases where companies skimped on safety checks, and it ended in disaster.

Then there’s the driver’s role. While it's been reported that the driver wasn’t hurt, we don’t yet know what actions he took during or after the separation. Did he immediately pull over, or did he continue on briefly before realizing the trailer had detached? Depending on how fast the truck was moving or how alert the driver was, different questions arise about his response and level of awareness.

It's also not clear whether in-cab video or black box data is available here. That kind of evidence can be crucial. Not only does it tell us what the driver was doing in the moments leading up to the crash, but it can also show how the vehicle systems were functioning. Was the trailer vibrating unusually before it let go? Did the truck’s systems flag a mechanical problem that was ignored?

One more layer worth exploring: the injured driver’s reaction. Authorities say the Volvo driver swerved to avoid a crash and ended up skidding off the road into the truck. It's unclear whether the trailer blocked his path entirely or if he could’ve avoided it with more room or warning. Either way, if the trailer wasn’t where it should’ve been, then the problem starts with the truck, not the car.

Until more information comes out, we’re left with a lot of unanswered questions. But if experience is any guide, the root of this crash will trace back to something that should have been done, but wasn’t.

Key Takeaways:

• Trailer separations don’t happen without a cause. Equipment failure needs to be investigated thoroughly.
• Maintenance records and inspection logs will likely be central to determining fault.
• Black box data and in-cab cameras, if available, can help clarify what the driver was doing and how the truck was behaving.
• The driver’s response and level of awareness are still unclear and warrant closer review.
• Getting to the truth requires more than reading police reports. It means digging into the systems, decisions and responsibilities behind the wheel.