Chicago Semi-Truck Accident Attorney

A fully loaded tractor-trailer can legally weigh up to 80,000 pounds — about 20 times the weight of the average passenger vehicle. At highway speed, that mass requires roughly double the stopping distance of a car. When a semi-truck strikes a smaller vehicle, the injuries are rarely minor, and the fatality rate in truck-passenger crashes skews overwhelmingly toward occupants of the smaller vehicle.

Semi-truck cases are also governed by a parallel body of federal law — the Federal Motor Carrier Safety Regulations (FMCSR). Hours-of-service limits, driver qualification requirements, drug and alcohol testing, vehicle inspection rules, and cargo-securement standards all create liability theories that do not exist in a regular car-accident case.

• Hours-of-service violations — drivers pushed past the federal 11-hour driving limit or 14-hour on-duty window. ELD data reveals the falsification.
• Jackknife and rollover — trailer physics, improper braking, and sudden maneuvers on Chicago’s interchange ramps (I-90/94, I-290, I-55).
• Underride collisions — smaller vehicles driven under the trailer when the truck stops abruptly or the side guards are missing.
• Distracted driving — dispatch apps, route-planning tablets, cellphones, and in-cab entertainment.
• Equipment failure — brake pad wear below DOT thresholds, bald tires, worn steering linkages, and failed landing gear.
• Improper cargo loading — unbalanced freight, overweight axles, and unsecured cargo that shifts or spills.
• Drug and alcohol use — stimulant abuse to stay awake is a documented problem in long-haul trucking.
• Inadequate driver training — carriers that hire under-qualified drivers to fill a constant industry shortage.

A serious semi-truck case usually has multiple defendants. The driver is the most obvious. The motor carrier — the company whose USDOT number appears on the cab door — can be liable for negligent hiring, training, supervision, retention, and maintenance, as well as vicariously for the driver’s negligence. The trailer owner is often a different company and carries its own insurance. The shipper can be liable for improper loading under the "Savage" doctrine. Freight brokers face negligent-hiring theories when they retain unsafe carriers. Component and truck manufacturers become defendants when a defective brake, tire, or safety system contributed to the crash.

The most important evidence in a semi-truck case is electronic and short-lived:

• ECM (Engine Control Module) data — speed, braking, throttle, hard-stop events in the seconds before impact. Overwrites on an endless loop.
• ELD (Electronic Logging Device) records — driver hours-of-service compliance. Carriers are only required to retain six months.
• Dashcam and inward-facing camera footage — increasingly standard on modern fleets, but footage is often overwritten within days if not preserved.
• Driver qualification file (DQF) — medical certification, drug-test history, prior accidents, and employment history.
• Vehicle maintenance records — DOT annual inspections, pre-trip inspection reports, brake and tire service history.
• Bills of lading and dispatch records — reveal shipper, broker, route, and whether the driver was pushed past legal hours.

We send spoliation letters to the carrier, trailer owner, shipper, and broker in the first 72 hours. Failing to preserve this evidence is grounds for sanctions, adverse inferences, and in Illinois has supported spoliation tort claims.

Federal law requires interstate motor carriers to carry a minimum of $750,000 in liability insurance for general freight and higher amounts for hazardous materials (49 CFR § 387.9). In practice, most carriers of any meaningful size carry $1 million primary with excess or umbrella layers stacking to $5M–$25M or more. When a crash involves catastrophic injuries — traumatic brain injury, spinal cord injury, amputation, or wrongful death — the available coverage often supports multi-million dollar recoveries. Our job is to identify every policy, every stacked layer, and every additional defendant before settlement conversations begin.

Within 48 hours of being retained, we send spoliation letters to every potential defendant, file FOIA requests for the Illinois State Police or local police crash report, pull the carrier’s full FMCSA/SAFER inspection and violation history, and begin coordinating accident reconstruction and medical experts.

We work exclusively on contingency — no fee unless we recover for you. And we do not take cases we cannot win. If you were injured in a semi-truck or 18-wheeler crash anywhere in Chicago, the suburbs, or on an Illinois interstate, call Zayed Law Offices today for a free consultation.