A jackknife truck accident happens when a semi-truck or tractor-trailer folds in on itself. The trailer swings out from behind the cab, forming a sharp angle that looks like a folding pocket knife. This kind of crash happens fast. When it does, the trailer can sweep across multiple lanes of traffic with little warning and potentially massive devastation. Other drivers have almost no time to react.
When a loaded semi-truck loses control and folds across the road, the results can be devastating. Pemberton Personal Injury Law Firm helps people across Wisconsin who have been seriously hurt in truck accidents, including jackknife crashes. Our Wisconsin truck accident lawyers know how these cases work and what it takes to identify the responsible parties.
What Causes a Jackknife Truck Accident?
Jackknife crashes are often caused by a problem with the truck’s braking, speed, or control. When the trailer does not slow down as fast as the cab, the trailer can swing wide and cause the truck to fold.
Common causes of jackknife truck accidents include:
- Sudden or hard braking on wet, icy, or slick roads
- Speeding or driving too fast for road conditions
- Equipment failure, including worn brakes or uneven brake systems
- Improperly loaded or unevenly distributed cargo
- Driver fatigue or distracted driving
These are not always random bad luck. According to the FMCSA’s Large Truck and Bus Crash Facts 2021, jackknifing was recorded for 142 large trucks involved in fatal crashes in 2021. Many of these crashes involve decisions, road conditions, or safety issues that may have been preventable.
Who Can Be Held Liable for a Jackknife Truck Accident?
Liability in a jackknife truck accident is not always simple. More than one party may share responsibility depending on how the crash happened.
The Truck Driver
Driver error is the most common cause of jackknife accidents. If the driver was speeding, braking too hard, distracted, or fatigued, they may be responsible. Truck drivers have a duty to adjust their driving based on road conditions and traffic.
The Trucking Company
Trucking companies may also be responsible when their drivers cause harm. Under Wisconsin law, a company may be liable for the negligent actions of its employees when those actions happen on the job. If the company failed to properly train the driver, pushed unsafe delivery schedules, or skipped required safety checks, it may also be responsible. Trucking companies that violate FMCSA safety rules may face legal consequences in addition to civil claims.
Maintenance Companies and Equipment Providers
Brake failure and mechanical defects can contribute to jackknife accidents. If a third-party maintenance company failed to inspect or properly repair the truck, they may share liability. The same may apply if a defective part was sold or installed that contributed to the loss of control.
Cargo Loaders
Improperly loaded trailers can increase the risk of a jackknife crash. If cargo was packed unevenly or exceeded weight limits, the company responsible for loading the trailer may be held liable if that imbalance caused the crash. Understanding who is liable for a truck accident often requires a thorough investigation into every company involved.
How Do You Prove Liability After a Jackknife Truck Crash?
Proving fault in a jackknife truck accident takes more than showing that the truck folded across the road. Evidence disappears quickly after a crash, and trucking companies often move fast to protect themselves.
Building a strong case often means gathering police reports, witness statements, and photos from the scene. It may also mean obtaining the truck’s black box data, which can record speed, braking, and driver input in the moments before the crash. Driver logs, maintenance records, cargo loading records, and the trucking company’s internal communications can all become important pieces of evidence.
Why Does Having a Truck Accident Lawyer Matter?
Jackknife truck accident cases often involve well-funded trucking companies and insurance carriers. Trucking companies often carry large commercial insurance policies and have legal teams working to limit payouts. Going up against that system without representation can put you at a serious disadvantage.
A lawyer who handles truck accident cases knows what to do after a truck accident and can act quickly to preserve the evidence that matters most. Your lawyer can handle communications with the insurance company, identify every responsible party, and build a case around the full scope of your losses, not just your immediate medical costs. Having the right legal support can make a real difference in the outcome of your case.
Contact Our Wisconsin Jackknife Truck Accident Lawyers Today
After a jackknife truck accident, injuries can be serious, insurance claims can be complex, and trucking companies may have legal teams ready from day one. Pemberton Personal Injury Law Firm is ready for cases like these. Our team brings over 90 years of combined experience to personal injury cases across Wisconsin, and we fight for fair compensation for every client we serve.
If you have been hurt in a jackknife truck accident, do not wait to get answers. The Pemberton Promise is our commitment to you: honest guidance, dedicated representation, and no shortcuts. Reach out to our team today to schedule your free case evaluation.
