An 18-wheeler — also called a semi-truck or tractor-trailer — can weigh up to 80,000 pounds fully loaded, roughly 20 times a passenger car. That mismatch is why these crashes cause catastrophic injuries far more often than ordinary collisions. 18 wheeler cases are also legally more complex: liability may fall on the driver, the motor carrier, the trailer owner, a cargo loader, or a parts manufacturer, and federal FMCSA regulations apply on top of state law. Having the right representation from day one matters.

Common Types of 18-Wheeler Accidents

• Jackknife accidents
• Underride and override collisions
• Rollover accidents
• Wide-turn (“squeeze play”) accidents
• Cargo spill and load-shift accidents
• Tire blowouts and equipment failure
• Crashes caused by driver fatigue or hours-of-service violations

Common Injuries & Damages in 18 Wheeler Crashes

Because of the size disparity, injuries are often severe — spinal cord damage, traumatic brain injuries, crush injuries, amputations, and fatalities. A claim can typically account for emergency and long-term medical care, rehabilitation, lost income and reduced earning capacity, vehicle damage, and pain and suffering.

Why an 18 Wheeler Attorney Approaches These Cases Differently

Commercial carriers dispatch investigators within hours of a crash, and their insurers are not the same insurers that handle car accidents. An 18 wheeler attorney knows to move fast on the evidence that decides these cases: the tractor’s ECM (“black box”) data, driver qualification files, hours-of-service logs, maintenance records, and cargo manifests. Much of it can be overwritten or destroyed on a routine retention schedule, so a spoliation letter usually needs to go out in the first days — not the first month.

What To Do After an 18-Wheeler Accident

1. Call the police and get an official accident report.
   Seek medical attention right away, even if injuries seem minor.
2. Photograph the truck — license plate, DOT number, trailer markings, and carrier name.
3. Collect witness contact information before anyone leaves the scene.
4. Preserve evidence quickly — ECM data and driver logs can be lost over time.
5. Avoid giving a recorded statement to any insurer before speaking with a firm.