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    What Are the Common Jackknife Truck Accident Causes and Injuries?

    Home  >  Blog  >  What Are the Common Jackknife Truck Accident Causes and Injuries?

    November 10, 2025 | By Pedro “Peter” de la Cerda
    What Are the Common Jackknife Truck Accident Causes and Injuries?

    A jackknife truck accident can leave behind devastating consequences for drivers and passengers on Texas highways. Victims often deal with long recoveries, emotional strain, and significant financial burdens. When a large commercial truck folds in half like a pocketknife, smaller vehicles rarely escape unharmed. What are the common jackknife truck accident causes and injuries? Knowing what leads to these accidents and how they impact victims helps strengthen your claim and hold the right parties accountable.

    If you or someone you love suffered harm because a truck driver or company acted carelessly, you may have the right to pursue compensation through a personal injury claim. Skilled legal representation can make a difference in how evidence is gathered, how liability is proven, and how damages are calculated.

    Speak with a truck accident lawyer near you during a free consultation to protect your rights and improve your chances of obtaining maximum compensation.

    Schedule A Free Consultation

    Key Takeaways: Jackknife Truck Accidents in Texas

    • Jackknife truck accidents often cause severe injuries and extensive vehicle damage because of the truck’s size and weight.
    • Common causes include improper braking, poor road conditions, speeding, and mechanical failures.
    • Liability may fall on the truck driver, trucking company, cargo loaders, or maintenance providers under Texas law.
    • Victims often experience serious injuries such as brain trauma, spinal damage, fractures, or internal injuries.
    • Prompt evidence collection and legal action help preserve your right to pursue fair compensation.

    What Is a Jackknife Truck Accident?

    Damaged semi-truck cab jackknifed against its trailer after an accident on a road, with a shattered windshield and bent front bumper.

    When a large truck jackknifes, the trailer swings out from behind the cab, forming a sharp angle that resembles a folding knife. The force of this motion can block several lanes, crush nearby cars, and trigger multi-vehicle collisions on busy Dallas roads like Interstate 35E or U.S. Route 75.

    Definition and Mechanics of Jackknifing

    A jackknife occurs when a truck’s trailer moves faster than the cab during braking or a loss of traction. The trailer slides sideways until the driver loses control. The following components play key roles:

    • Cab: The front portion where the driver sits.
    • Trailer: The large compartment attached to the cab carrying cargo.
    • Fifth Wheel Coupling: The joint that connects the two and allows turning.

    When friction or weight distribution becomes uneven, the trailer’s inertia can override the cab’s direction, leading to a skid.

    Why Jackknife Accidents Are So Dangerous

    A fully loaded 18-wheeler can weigh up to 80,000 pounds. Once the trailer swings out, it can sweep across lanes and strike other vehicles in seconds. Drivers in smaller cars have little time to react, especially in heavy traffic. Jackknifed trucks often cause secondary crashes involving multiple vehicles, creating chain-reaction pileups.

    What Causes Jackknife Truck Accidents?

    Several preventable factors contribute to jackknife accidents across Texas. Most stem from driver behavior, equipment problems, or poor maintenance practices.

    Improper Braking and Brake System Failures

    When a driver brakes too suddenly, especially on a curve or slick surface, the trailer may keep moving forward while the cab slows down. Uneven braking between axles can also trigger a skid. Malfunctioning or poorly maintained brakes make this even more likely.

    Speeding and Aggressive Driving

    Truck drivers who exceed safe speeds on Texas highways like the LBJ Freeway or George Bush Turnpike have less control over their vehicles. High speeds reduce reaction time and make it harder to stop smoothly. Aggressive actions such as tailgating or abrupt lane changes further raise the risk of jackknifing.

    Poor Road Conditions and Weather

    Rain, ice, and debris on the roadway can reduce tire traction. Wet roads make it easier for a heavy trailer to slide out of alignment. For instance, sudden rainfall on Loop 12 in Dallas may create slick patches that cause tires to lose grip, leading to a dangerous skid.

    Improper Loading and Cargo Distribution

    Trucks carrying uneven or unsecured loads are unstable. Weight placed too far back can push the trailer outward when braking. Cargo companies that fail to follow load-distribution rules contribute to instability that leads to jackknifing accidents.

    Driver Fatigue and Violations of Hours-of-Service Regulations

    Federal Hours-of-Service rules limit how long truck drivers can operate without rest. Fatigued drivers react slower and misjudge distances. Long hours on routes like I-20 through Mesquite or Grand Prairie increase the risk of mistakes that cause a trailer to swing out of control.

    Inadequate Truck Maintenance

    Trucking companies must regularly inspect and service their fleets. Worn tires, defective brakes, and failing suspension systems make a vehicle unsafe. Skipping maintenance schedules often results in equipment breakdowns that contribute to jackknife crashes.

    Inexperienced or Inadequately Trained Drivers

    Driving a tractor-trailer safely requires specific training on weight shifting, braking, and skid recovery. New or poorly trained drivers might not know how to handle a trailer that starts to swing, putting everyone on the road at risk.

    Who Can Be Held Liable for a Jackknife Truck Accident in Texas?

    Jackknife accidents often involve multiple parties, and determining responsibility requires careful investigation.

    Truck Driver Negligence

    A driver who speeds, drives while fatigued, or ignores weather warnings can be found negligent. Failing to follow traffic laws or company safety policies may also create liability.

    Trucking Company Liability

    Trucking companies bear responsibility for hiring, training, and supervising drivers. They can also be held accountable for unsafe schedules, maintenance failures, or pressure to meet unrealistic deadlines that lead to driver fatigue.

    Cargo Loading Companies

    Independent contractors or warehouse crews that load the truck may share liability if they distribute cargo unevenly or fail to secure it properly.

    Truck Maintenance Providers

    If a third-party maintenance company neglects inspections or repairs, it may bear partial responsibility for mechanical issues contributing to a crash.

    Vehicle and Parts Manufacturers

    Defective brakes, tires, or coupling devices sometimes cause jackknife accidents. In such cases, manufacturers or distributors may be liable under product liability laws.

    Multiple Liable Parties in Texas Truck Accident Cases

    Texas law allows victims to seek damages from several parties if each contributed to the accident. This shared-fault approach ensures accountability throughout the transportation chain.

    What Are the Most Common Injuries from Jackknife Truck Accidents?

    The force of a jackknife crash often leads to serious and life-altering injuries for vehicle occupants.

    Traumatic Brain Injuries and Head Trauma

    Severe head impacts occur when drivers or passengers strike steering wheels, windows, or dashboards. Brain injuries may cause memory loss, cognitive issues, or long-term disabilities.

    Spinal Cord Injuries and Paralysis

    Damage to the spine can result in partial or complete paralysis. Victims may require long-term medical care and adaptive equipment.

    Broken Bones and Fractures

    High-impact collisions frequently cause broken ribs, arms, legs, or pelvic bones. These injuries often need surgery and extensive rehabilitation.

    Internal Organ Damage

    Blunt-force trauma can harm organs such as the liver, spleen, or lungs. Internal bleeding requires immediate medical attention and can become life-threatening.

    Severe Lacerations and Burns

    Flying debris, shattered glass, and vehicle fires cause deep cuts and burns that leave permanent scars.

    Psychological Trauma and PTSD

    Survivors often experience anxiety, depression, or post-traumatic stress disorder after witnessing a catastrophic truck accident.

    Wrongful Death

    Sadly, some jackknife accidents lead to fatal outcomes. Families have the right to pursue a wrongful death claim to seek accountability for their loss.

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    What Evidence Is Needed to Prove a Jackknife Truck Accident Claim?

    Evidence folder on a desk with a gavel and magnifying glass, representing legal investigation in a Texas truck accident case.

    Strong evidence helps demonstrate fault and the extent of damages in a Texas truck accident claim.

    Police Reports and Accident Scene Documentation

    Official police reports detail how the crash occurred, who was involved, and any traffic citations issued. Photos and videos from the scene also provide valuable proof.

    Truck Driver Logs and Electronic Logging Device (ELD) Data

    Federal law requires commercial trucks to carry ELDs that record driving hours. These records show whether a driver exceeded legal time limits or failed to take required breaks.

    Truck Maintenance and Inspection Records

    Maintenance logs can reveal whether a company neglected to fix known mechanical problems that contributed to the accident.

    Black Box Data from the Commercial Vehicle

    Similar to airplane recorders, black boxes track vehicle speed, braking, and steering inputs before a collision.

    Witness Statements and Expert Testimony

    Eyewitnesses and accident reconstruction specialists can explain how the truck lost control and whether driver error played a role.

    Medical Records and Documentation of Injuries

    Medical reports link the crash to specific injuries and help calculate damages for treatment, rehabilitation, and future care.

    How Does Texas Law Apply to Jackknife Truck Accident Cases?

    Texas truck accident claims must comply with both state and federal laws governing commercial vehicles and negligence.

    Texas Transportation Code Requirements for Commercial Vehicles

    Truck drivers must hold valid commercial licenses and follow state safety standards. Violations of these rules can serve as evidence of negligence.

    Federal Motor Carrier Safety Regulations

    The Federal Motor Carrier Safety Administration (FMCSA) sets national guidelines for driver qualifications, rest periods, and vehicle maintenance. Noncompliance often plays a role in jackknife cases.

    Texas Statute of Limitations for Truck Accident Claims

    In Texas, most personal injury claims must be filed within two years of the accident. Missing this deadline usually means losing the right to recover damages.

    Modified Comparative Negligence in Texas

    Texas follows a modified comparative negligence rule. If you’re less than 51% at fault, you may still pursue compensation, but your award is reduced by your percentage of fault.

    Damages Available Under Texas Law

    Victims may pursue damages for medical costs, lost income, diminished earning capacity, pain and suffering, and property damage. Families in wrongful death cases may seek funeral costs and loss of companionship.

    How Our Attorneys Can Help

    At DFW Injury Lawyers, we understand the serious impact a jackknife truck accident can have on your health, livelihood, and sense of security. Our team works diligently to build a strong case on your behalf.

    Thorough Investigation of Your Jackknife Accident

    We gather evidence from every available source, including police reports, truck data, and maintenance records.

    Identifying All Liable Parties

    We assess responsibility across all potential defendants to ensure accountability for each contributing factor.

    Handling Insurance Companies and Settlement Negotiations

    Insurance companies often attempt to reduce or deny valid claims. Our attorneys push back by presenting detailed evidence and well-supported arguments.

    Calculating the Full Value of Your Claim

    We review your medical expenses, lost income, and other measurable losses to help determine an accurate case value.

    Litigating Your Case in Court When Necessary

    If insurers refuse to make a fair offer, we’re prepared to take the case to trial to pursue a just outcome.

    No Upfront Costs with Contingency Fee Representation

    We handle cases on a contingency basis, meaning you don’t pay attorney fees unless we recover compensation for you through a settlement or court award.

    FAQs: Jackknife Truck Accident Claims in TX

    Can I still recover compensation if I was partially at fault for the accident?

    Yes. Under Texas law, you can recover damages if your share of fault is less than 51%. The court reduces your award based on your degree of responsibility.

    What types of compensation can I recover after a jackknife truck accident?

    You may seek damages for medical care, rehabilitation, lost income, reduced earning potential, pain and suffering, and property damage.

    How is a jackknife truck accident case different from a regular car accident case?

    Truck accident cases often involve multiple defendants, complex insurance policies, and federal safety regulations, making investigations more detailed.

    Do I need to hire an attorney for a jackknife truck accident claim?

    While not legally required, hiring a lawyer can help ensure evidence is preserved, deadlines are met, and your rights are fully protected during negotiations or trial.

    Contact Our Semi Jackknife Accident Attorneys in Texas Today

    Time limits apply to personal injury and wrongful death claims in Texas, so quick action helps preserve your rights. Evidence such as black box data and driver logs may disappear if not secured promptly.

    DFW Injury Lawyers provides dedicated support for victims of jackknife truck accidents across Dallas and surrounding communities. Our attorneys pursue accountability from drivers, trucking companies, and insurers that cause preventable harm. You don’t have to face this process alone. Contact us today for a free, no-obligation consultation with a personal injury lawyer.

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    Pedro “Peter” de la Cerda Author Image

    Pedro “Peter” de la Cerda

    Founder

    Attorney Pedro “Peter” de la Cerda is a co-founder of DFW Injury Lawyers. As a young attorney looking for courtroom experience, Mr. de la Cerda began his career defending physicians, nurses, hospitals, trucking, and manufacturing companies in disputes involving personal injury, medical malpractice, products liability, and toxic tort. After seeing many people who were truly injured and deserving of fair compensation, however, Mr. de la Cerda was moved to cross the courtroom aisle and prosecute cases on behalf of plaintiffs in personal injury cases.

    Author's Bio

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