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Why semi-truck accidents often lead to catastrophic injuries

On Behalf of | May 4, 2026 | Car Accidents |

Americans rely on semi-trucks to deliver goods throughout the nation. They provide a necessary service, but can also be deadly.

When a passenger vehicle collides with a semi-truck, the outcome is often catastrophic, resulting in life-altering or even fatal injuries.

A deadly combination of mass and speed

The average passenger vehicle weighs around 3,000-4,000 pounds, but a fully loaded semi-truck can weigh up to 80,000 pounds. Due to this massive size disparity, when the two collide, the occupants of the smaller vehicle absorb the brunt of the impact. 

Even at relatively low speeds, the force generated by a truck can cause severe injuries. However, at greater speeds, the kinetic energy increases exponentially. At 70 mph, the force of a semi-truck colliding into a car is likely to result in fatalities.

Semi-trucks also require more distance to come to a complete stop. When traffic suddenly slows on the highway, a truck driver may not be able to brake in time to avoid a collision. Rear-end accidents involving trucks often leave the occupants of the smaller vehicle with severe spinal injuries or traumatic brain injuries.

One of the most dangerous aspects of truck accidents is the risk of underride collisions, in which a smaller vehicle slides under the trailer. The upper portion of the vehicle is often sheared off on impact, exposing the occupants and resulting in fatal head and neck injuries.

You can’t overlook the human factor either. Despite federal regulations limiting driving hours, fatigue remains a significant problem in the trucking industry. Long shifts and monotonous driving conditions along the highway can impair a truck driver’s reaction time and decision-making. Fatigued driving increases the likelihood of high-speed collisions.

Victims of truck accidents may be entitled to compensation for medical expenses, lost wages and pain and suffering. Insurance companies representing the trucking industry want to limit the payouts they make. You need someone on your side who can help you understand your rights, what your case is really worth and pursue the compensation you deserve.

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