A collision involving a commercial truck can have devastating consequences, especially when the truck “jackknifes.”
Because of their size and weight, tractor-trailers require far more time and distance to stop than passenger vehicles. When something goes wrong, a truck can quickly lose control, creating a dangerous situation for everyone nearby.
At KJW Law Firm, based in Anderson, SC, we represent individuals and families throughout South Carolina in serious trucking accident cases. Understanding what a jackknife accident is, what causes it, and who may be responsible can help you better understand your legal options after a crash.
What Is a Jackknife Truck Accident?
A jackknife accident occurs when the trailer of a tractor-trailer swings outward and forms an angle with the cab, resembling the shape of a folding pocketknife.
Instead of remaining in a straight line, the trailer slides sideways, often blocking multiple lanes of traffic.
These crashes can involve:
- Passenger vehicles
- Multiple commercial trucks
- Motorcycles
- SUVs
- Chain-reaction collisions
Because a fully loaded tractor-trailer can weigh up to 80,000 pounds, jackknife accidents often result in catastrophic injuries and significant property damage.
What Causes a Truck to Jackknife?
Jackknife accidents rarely happen because of a single factor. In many cases, multiple issues contribute to the crash.
Common causes include:
Sudden Braking
If a truck driver brakes too hard, especially at highway speeds, the trailer may continue moving forward while the cab slows down.
Wet or Slippery Roads
Rain, standing water, ice, or loose gravel can reduce tire traction and make it more difficult for drivers to maintain control.
Speeding
Driving too fast for road or weather conditions increases the likelihood of losing control during braking or turning.
Improperly Loaded Cargo
Cargo that shifts during transport or exceeds weight limits can affect a truck’s balance and stability.
Mechanical Problems
Brake failures, worn tires, steering issues, or other mechanical defects can contribute to a jackknife collision.
Driver Fatigue
Long hours behind the wheel can slow reaction times and increase the risk of driver error.
Who May Be Liable for a Jackknife Truck Accident?
Many people assume the truck driver is automatically responsible.
However, trucking accident cases are often much more complex.
Depending on the circumstances, liability may extend to multiple parties.
The Truck Driver
A driver may be responsible if they were:
- Speeding
- Following too closely
- Distracted
- Fatigued
- Driving recklessly
- Violating federal safety regulations
The Trucking Company
Trucking companies have a responsibility to hire qualified drivers and maintain safe operating practices.
A company may share liability if it failed to:
- Properly train drivers
- Conduct background checks
- Enforce safety policies
- Monitor Hours-of-Service compliance
- Maintain company vehicles
Maintenance Providers
If improper maintenance contributed to brake failure, tire problems, or other mechanical issues, a maintenance company may also be responsible.
Cargo Loading Companies
Improperly loaded or unsecured cargo can significantly increase the risk of a jackknife accident.
In some cases, the company responsible for loading the trailer may share liability.
Manufacturers
If defective brakes, tires, steering components, or other parts contributed to the crash, the manufacturer of those components may also become part of the investigation.
What Evidence May Be Used in a Jackknife Truck Accident Case?
Unlike many passenger vehicle accidents, trucking cases often involve extensive documentation.
Important evidence may include:
- Electronic Logging Device (ELD) records
- Driver logbooks
- Black box (Event Data Recorder) information
- Truck maintenance records
- Inspection reports
- Dash camera footage
- Cell phone records
- Cargo loading documentation
- Witness statements
- Accident reconstruction reports
Together, these records can help investigators determine what happened and whether safety regulations were followed.
Contact a South Carolina Truck Accident Lawyer
At KJW Law Firm, we understand that serious trucking accidents often involve far more than what is visible at the crash scene. Our experienced trial attorneys represent individuals and families across South Carolina in complex trucking accident litigation involving commercial vehicles, catastrophic injuries, and multiple liable parties.
If you or a loved one has been injured in a jackknife truck accident, contact KJW Law Firm today for a case evaluation. We’re here to help you understand your legal options and pursue accountability for those responsible.
