Who Is Responsible When a Truck Jackknifes on I-81 in Virginia?

 Posted on August 23, 2026 in Car & Truck Accidents

Interstate 81 sees a high amount of truck traffic, making crashes involving large trucks a serious concern for drivers in the Shenandoah Valley. Some accidents can involve a tractor-trailer blocking several lanes of traffic when its trailer swings sideways toward the cab, which is called a jackknife accident. 

The truck driver may be responsible for a jackknife crash if careless driving caused the truck to lose control. A trucking company or another business may also be at fault if poor maintenance or another problem with the truck led to the accident.

If you were injured in a jackknife accident on I-81 in 2026, a Winchester, VA truck accident lawyer can help you navigate your case and what your options are.

What Causes a Semi-Truck in Virginia to Jackknife?

A jackknife happens when the trailer swings toward the truck's cab instead of staying in line behind it. The trailer can then slide across other lanes and strike several vehicles at once.

Hard braking is one possible cause. For instance, a driver who is going too fast on wet or icy roads may lose control when trying to stop. Worn brakes or tires can also play a role.

However, jackknifing does not always mean the truck driver made a mistake. The cause of the crash must be identified before determining who is responsible.

Who May Be Responsible for an I-81 Jackknife Accident?

A truck driver may be responsible if speeding or another unsafe choice caused the trailer to swing out. If they were driving too fast in bad weather or heavy traffic, it could make it harder to keep a tractor-trailer under control.

It is also possible that the trucking company may be responsible for problems that go beyond the driver's actions. A company that puts an unsafe truck on the road may share responsibility when a mechanical problem leads to a crash. A separate maintenance company could also be involved if faulty repair work caused the truck to lose control.

Cargo can create another issue. A load that shifts inside the trailer can affect how the truck handles. If another company loaded the trailer incorrectly, that company could also be part of the case. This is one of the reasons a commercial truck accident may involve more than the driver behind the wheel.

What Does Virginia Law Say About Losing Control of a Truck?

Virginia Code § 46.2-853 considers it reckless driving to operate a vehicle that is not under proper control or has inadequate or improperly adjusted brakes. This law applies to vehicles traveling on highways throughout Virginia, including I-81.

Virginia also requires brakes to be kept in good working order. Virginia Code § 46.2-1066 says a motor vehicle must have brakes that are able to control, stop, and hold the vehicle. However, a jackknife accident does not prove on its own that either law was broken.

What Evidence Can Show Why a Truck Jackknifed in Virginia?

Figuring out what caused the truck to lose control is an important part of determining responsibility in a jackknife case. The damage at the scene may show how the crash happened, but other records can help explain what was going on with the truck before the trailer swung out.

Useful evidence may include:

• Photos or video from the crash scene

• Truck inspection and repair records

• Information from the truck's electronic systems

• Records showing how the trailer was loaded

• Statements from drivers or other people who saw the crash

Different types of records can point to different causes. Repair records may show a problem with the brakes or tires, while cargo records may help show whether a shifting load played a role. Electronic data from the truck may also provide information about its speed or braking before the crash. 

Contact a Winchester, VA Truck Accident Attorney

A jackknife crash can involve a truck driver or another business connected to the truck. At Parthemos, Curran, Buelow and Polizzi, PLLC, our attorneys have more than 120 years of combined experience handling complex injury cases, including cases that other firms may turn away. We stay in close contact with our clients, and we will not take a case unless we are willing to fight for it in court. Call 540-662-4222 today for a free consultation with a Woodstock, VA personal injury lawyer.