Override and underride accidents occur when a smaller vehicle is crushed beneath a tractor-trailer or other large truck. Both types of accidents are catastrophic due to the size and weight disparity between the vehicles, often leading to severe injuries or fatalities.

An override collision occurs when the front of a tractor-trailer runs over the back of a smaller vehicle. These accidents often happen in situations involving sudden braking, traffic congestion, or slow-moving vehicles. Factors contributing to override accidents include a truck driver’s failure to maintain a safe following distance, excessive speed, or distracted driving. Poor visibility due to weather conditions or inadequate headlights may also play a role.

In an underride collision, a smaller vehicle slides underneath a tractor-trailer, often shearing off the top of the vehicle. This type of accident usually occurs when the truck driver suddenly stops or makes a wide turn, leaving insufficient time for the vehicle behind to react. Underride accidents are particularly deadly as the passenger cabin of the smaller vehicle absorbs most of the impact.

Truck drivers can be held liable for override or underride accidents due to negligence, such as distracted driving, speeding, or failing to observe traffic laws. Employers are often vicariously liable for their drivers' actions under the legal doctrine of respondeat superior, which holds employers accountable for employees’ conduct within the scope of their employment.

Employer liability may also extend to negligent hiring, training, or supervision. For instance, if an employer fails to perform adequate background checks or ensure that drivers comply with hours-of-service regulations, they may bear responsibility.

Several other parties may be implicated in a lawsuit seeking damages, such as truck maintenance providers if faulty brakes, tires or other mechanical issues contributed to the accident; trailer manufacturers that failed to install adequate underride guards; shippers or loaders that failed to properly secured cargo; and third-party drivers whose negligence may have contributed to the accident.

An experienced truck accident attorney takes a multifaceted approach to investigate override and underride collisions, including the following:

• Accident scene reconstruction — Specialists can analyze skid marks, impact points, and vehicle damage to determine how the accident occurred.

• Electronic logging devices (ELDs) — Attorneys review ELD data to assess the truck driver’s compliance with federal regulations on driving hours.

• Surveillance footage and dashcams — Video evidence can offer critical insights into the moments leading up to the collision.

• Witness statements — Interviews with eyewitnesses provide additional context about the driver’s behavior and road conditions.

• Expert testimony — Engineers and accident reconstruction experts may testify on factors such as vehicle speed, impact force and injury mechanisms.

• Regulatory compliance review — Attorneys investigate whether the trucking company and driver adhered to safety regulations.

Using these methods and resources, skillful attorneys can build a strong case to secure compensation for victims of these tragic accidents. 

If a truck accident leaves you injured, the lawyers at Favaro, Lavezzo, Gill, Caretti & Heppell, PC can help you get the compensation you deserve. Based in Vallejo, California, we represent clients throughout Solano, Contra Costa and Napa counties. Call 707-674-6057 or contact us online to schedule your free initial consultation.