Main Causes of Truck Accidents

June 9, 2026 Truck Accidents Written by Jeff Singer
Table of Contents

Key Takeaways

  • Understanding the causes of truck accidents starts with driver fatigue, which is often tied to hours-of-service violations.
  • Distracted driving, speeding, and impaired operation each significantly raise a truck driver’s crash risk.
  • Liability in truck accident cases can extend to the driver, the carrier, the shipper, or the maintenance contractor.
  • Documenting the scene and consulting a truck accident attorney early are the most critical steps after a crash.
  • Missouri roads pose serious risks of truck accidents; knowing your rights after a crash can make a critical difference in your recovery.

Every year, commercial truck crashes leave Missouri families dealing with serious injuries, mounting medical bills, and unanswered questions. When a fully loaded 18-wheeler strikes a passenger vehicle, the consequences range from catastrophic injuries to wrongful death.

Understanding the causes of truck accidents can help you recognize why these collisions happen and what rights you may have. At Goldblatt + Singer, we can help you navigate every step of your claim, from the initial investigation through the resolution.

Contact a Goldblatt + Singer St. Louis Personal Injury Lawyer Today

Common Causes of Truck Accidents

No two truck accidents are identical, but the same underlying causes of truck accidents appear repeatedly across Missouri roads. They fall into three broad categories: driver error, carrier negligence, and equipment or cargo failures.

Common causes can include:

Driver Fatigue

Driver fatigue remains a persistent problem among commercial drivers. When drivers push past legal limits to meet delivery deadlines, reaction times slow and judgment suffers, putting everyone on the road at risk.

Distracted Driving

At highway speeds, taking your eyes off the road for even a few seconds can cause a driver to miss a slowing vehicle, a sudden lane shift, or a road hazard entirely. Texting, adjusting a GPS, or reaching for items in the cab are all it takes to turn a routine trip into a serious crash.

Speeding and Aggressive Driving

Large commercial trucks require far greater stopping distances than passenger vehicles. Driving too fast for road conditions increases the likelihood of a crash and the severity of the impact.

Impaired Driving

Drug and alcohol use are strictly prohibited for commercial drivers, but impairment continues to appear in serious crashes. When a driver operates an 80,000-pound vehicle under the influence, the consequences can be catastrophic, and liability often extends beyond the driver to the carrier that put them on the road.

Poor Vehicle Maintenance

Trucking companies are legally obligated to keep their fleets in a safe condition. Worn brakes, faulty lighting, and defective tires are maintenance failures that can cause or worsen a crash, and ignoring documented problems creates substantial liability.

Improper Loading and Overloading

Unsecured or overweight cargo can shift during transport, causing a truck to jackknife or lose control on a curve. Violations by shippers or loading crews are a recognized factor in rollover and multi-vehicle crashes.

Blind Spot Negligence

Commercial trucks have four significant blind spots where nearby vehicles disappear from view. According to the FMCSA, drivers should check their mirrors every 8 to 10 seconds to stay aware of vehicles entering those zones. Failing to do so before lane changes or wide turns regularly results in sideswipe collisions.

Tire Blowouts

A blown tire on an 80,000-pound truck can cause the driver to lose control instantly. Carriers that skip routine tire inspections or run worn tires past their service life put every vehicle in the surrounding area at serious risk.

Improper Hiring and Training

Trucking companies that place unqualified or undertrained drivers behind the wheel create liability that extends beyond the driver. Failure to verify licensing, driving history, or conduct proper training is an independent ground for a negligence claim against the carrier.

causes of truck accidents

Overview of Truck Accidents in Missouri

Missouri roads carry heavy commercial truck traffic year-round, and the crash data reflects the human cost. According to FMCSA Crash Statistics for Missouri, Missouri has already recorded 789 vehicles involved in fatal and non-fatal crashes in recent months, with 8 fatalities and 320 injuries. For anyone hurt by a commercial vehicle in the St. Louis area, these figures represent real families, real medical bills, and real losses.

What Should You Do If You Are Involved in a Truck Accident?

  • Seek medical attention immediately: Internal trauma and traumatic brain injuries do not always produce visible symptoms right away. A medical record created on the day of the crash is one of the valuable pieces of evidence in any personal injury claim.
  • Document everything at the scene: Photograph all vehicles, visible injuries, road conditions, tire marks, and nearby signage. Collect names and contact information from witnesses before they leave.
  • Consult an attorney before speaking to any insurance adjuster: Adjusters are trained to minimize claims, and early statements are routinely used to reduce payouts. Reaching out to a truck accident attorney as soon as possible is an important step you can take.

Understanding Liability in Truck Accident Claims

Truck accident cases are more legally complex than standard car accident claims because multiple parties can share responsibility. Identifying every liable party requires an investigation beyond the police report.

The driver may be personally liable for negligent operation, including speeding, distracted driving, or impaired driving. The trucking company may be liable under the doctrine of respondeat superior, which holds employers responsible for the negligent acts of employees performed within the scope of their duties. If the company pressured the driver to violate hours-of-service limits or failed to properly maintain the vehicle, those are independent grounds for liability.

A cargo loading company may be liable if unsecured freight contributed to the crash, and a manufacturer may face a product liability claim if a defective part played a role. Missouri follows a pure comparative fault standard, meaning an injured person can still recover damages even if they bear some share of fault.

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How Can You Prevent a Truck Accident?

All motorists sharing Missouri roads with commercial vehicles can take steps to reduce their exposure to risk. The following practices can help keep you safer near large trucks:

  • Check blind spots: Avoid traveling alongside a truck. If you cannot see the driver in their side mirror, they cannot see you.
  • Increase following distance: Allow at least four seconds of space behind any commercial vehicle, more in wet or icy conditions.
  • Pass decisively: Accelerate through a pass and clear the truck’s front blind spot quickly rather than drifting alongside it.
  • Be cautious at intersections: Trucks need extra space for wide turns. Never cut across the path of a turning commercial vehicle.
  • Always wear your seatbelt: Seat belts significantly reduce injury severity in any collision, particularly those involving large vehicles.

These habits lower risk, but cannot eliminate it. When a driver or a company acts negligently, responsibility for the resulting injuries lies with them.

Contact Goldblatt + Singer for a Free Consultation

After a truck crash, you need attorneys who know how to investigate carriers, challenge insurers, and build a strong case on your behalf. At Goldblatt + Singer, we can help you understand the causes of truck accidents, identify who can be held responsible, and navigate every step of your claim. Contact us today at (314) 231-4100 for a free consultation with a St. Louis truck accident lawyer. You pay nothing unless we recover for you.

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Jeffrey Singer

Jeff Singer, Managing Partner at Goldblatt + Singer for over a decade, is a seasoned personal injury attorney known for his compassionate yet tough advocacy. He has resolved hundreds of cases and recovered millions for clients. Recognized as a Missouri Super Lawyer and Top 100 National Trial Lawyer, Jeff also serves on the Missouri Bar’s Chief Disciplinary Committee and the Board of Governors for the Missouri Association of Trial Attorneys.

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This page has been created, edited, and reviewed by a team of legal writers following our thorough editorial guidelines. It was approved by our Founding Partner, Jeffrey Singer, who has over 30 years of experience as a personal injury attorney.