Tonica, IL — December 26, 2024, one person was injured in a truck accident at about 6 p.m. on Interstate 39.

Authorities said a Toyota SUV was headed north crashed into the back end of a Kenworth semi-truck near the Tonica interchange.

1 Injured in Truck Accident on Interstate 39 near Tonica, IL

A passenger in the Toyota was flown to an area hospital by helicopter after the crash, according to authorities. The others involved in the crash declined medical attention.

No other information about the crash has been released at this point.

The accident is still under investigation.

Commentary by Attorney Michael Grossman

This case highlights the challenges of sharing the road with large commercial vehicles. In my experience, rear-end collisions like this are often more complex than they appear at first glance.

The first thing to ask is whether the Toyota driver had enough time to react to the semi-truck. Was the truck moving significantly slower than surrounding traffic, or was it stopped? Trucks can slow down more quickly than people expect, especially on highway interchanges where traffic often shifts speeds abruptly. If the truck driver was traveling slower than expected or had stopped, did they take the necessary precautions to alert other drivers, such as activating hazard lights?

Visibility could also have been a factor, especially at 6 p.m. when lighting conditions can vary. Was the truck equipped with reflective markings or functional rear lights to ensure it was visible to vehicles approaching from behind? Without those, a truck can be particularly hard to spot, especially if it blends into the surroundings in low light or bad weather.

On the other side of the equation, it’s important to consider the actions of the SUV’s driver. Were they following too closely or distracted at the time? Rear-end collisions are often tied to drivers failing to anticipate changes in traffic conditions, which could point to distraction or speeding. Investigators will likely examine whether factors like cell phone use, fatigue or poor weather played a role in the crash.

Lastly, this crash highlights the risks passengers face in rear-end collisions, particularly when a much smaller vehicle crashes into a larger one like a semi-truck. The difference in size and weight amplifies the force of the impact, which may explain why the SUV passenger required helicopter transport for medical care while others declined treatment.

Understanding what caused this crash will require a thorough review of the drivers’ actions, the condition of the truck and the highway environment at the time of the collision. Crashes like this serve as a reminder of the need for caution and attention, especially on highways where vehicles of vastly different sizes and capabilities share the road.

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