St. Louis Tractor-Trailer Accident Lawyer

Tractor-trailer crashes are different from ordinary car accidents

A tractor and trailer operate as an articulated commercial vehicle. Their size, stopping distance, turning path, blind areas, coupling system, and cargo can affect how a collision occurs and how severe the resulting injuries are. Investigating the crash may require examining the tractor, trailer, load, route, and business decisions behind the trip — not only the conduct of the driver.

Federal Motor Carrier Safety Regulations may govern hours of service, driver qualifications, inspection and maintenance, cargo securement, and other aspects of the operation. Which rules and records matter depends on the carrier, vehicle, cargo, and facts of the collision.

Evidence that matters in a semi-truck or 18-wheeler case

The evidence is often spread across the tractor, trailer, motor carrier, driver, shipper, and outside vendors. A focused investigation may examine:

• Electronic logging device records, duty-status data, dispatch communications, and trip documents
• Engine control and event data showing speed, braking, throttle, and other recorded vehicle activity
• Tractor and trailer inspections, repair histories, brake and tire records, and post-crash examination findings
• Cargo loading and securement records, bills of lading, weight information, and seal documentation
• Driver qualification and training materials, licensing information, and company safety policies
• Dash-camera, roadway-camera, and electronic communications that may help reconstruct the events before impact

Who may be responsible besides the driver

Responsibility depends on the contracts, relationships, control, and conduct involved in the trip. Potential parties may include the motor carrier, tractor or trailer owner, maintenance provider, loading company, shipper, freight broker, contractor, or a manufacturer of a failed vehicle component. Not every company connected to a load is legally responsible; the records must show what each party did and what duties applied.

Why early preservation letters matter

Trucking companies and insurers may inspect the vehicles and collect records quickly. Electronic data can be overwritten, equipment can be repaired or returned to service, and documents may be retained only for limited periods. A preservation letter identifies potentially relevant evidence and asks the parties controlling it not to alter or destroy it while the claim is investigated.

The appropriate requests should be tailored to the tractor, trailer, carrier, cargo, and collision. Sending a generic demand is not a substitute for identifying the companies and systems that may hold the evidence.

Free case review

Schneller Law Group reviews serious tractor-trailer, semi-truck, 18-wheeler, and big-rig collision cases in Missouri and Illinois. The consultation is free and comes with no obligation.