What Happens if a Truck Driver Was Under the Influence During a Crash?

 Posted on July 23, 2026 in Truck Accidents

If a truck driver was under the influence during a crash, this can strengthen your personal injury claim significantly. The driver's impairment often serves as strong evidence of negligence. It can also open the door to additional damages beyond a typical accident case.

If you were hit by a commercial truck in 2026 and the driver was intoxicated, our Chicago, IL personal injury lawyers can help you understand how this factor affects your case. We can also explain what additional compensation you may be entitled to pursue.

What Are the Legal Alcohol Limits for Truck Drivers In Illinois?

Commercial truck drivers are held to a stricter standard than regular motorists when it comes to alcohol consumption. Under Illinois law, commercial drivers are considered impaired at a blood alcohol concentration of 0.04 percent. This is half the 0.08 percent limit that applies to non-commercial drivers.

Federal regulations under 49 CFR Section 392.5 also prohibit commercial drivers from operating a commercial motor vehicle while under the influence of alcohol, possessing alcohol in certain circumstances, and operating a vehicle within four hours after using alcohol.

How Does a Truck Driver Being Drunk Strengthen Your Personal Injury Claim?

If the truck driver in your case was found to be under the influence at the time of a crash, it becomes much easier to establish that the driver acted negligently. Evidence of impairment can include a failed breathalyzer test, blood test results, or officer observations at the scene. This kind of evidence can serve as powerful proof that the driver breached their duty to operate the vehicle safely. It often removes much of the uncertainty that exists in other accident cases. A driver's intoxication speaks directly to their state of mind and judgment at the time of the crash.

Can You Recover Punitive Damages in an Impaired Truck Driver Case?

Standard damages compensate you for your actual losses, like medical bills and lost wages. Punitive damages are different. They exist specifically to punish particularly reckless behavior and deter similar conduct in the future.

Illinois courts have recognized that driving under the influence can rise to the level of conduct that justifies these additional damages. This is especially true in a commercial vehicle capable of causing catastrophic harm. Whether punitive damages apply depends on the specific facts of your case. This includes the driver's blood alcohol level and any other evidence of reckless behavior.

Who Else Might Be Held Responsible for a Drunk Driving Truck Accident Besides the Driver?

Liability in these cases often extends beyond just the individual driver. Trucking companies can be held responsible in a few situations. This includes if they failed to properly screen or drug test their drivers or ignored warning signs of a substance abuse problem. It also includes if they pressured drivers into working long hours that increased the temptation to use substances to stay awake. Identifying every responsible party matters a lot.

Trucking companies typically carry much larger insurance policies than individual drivers. This can affect the total compensation available to you.

What Evidence Is Important in Impaired Driver Truck Accident Cases?

Building a strong claim involving an impaired truck driver often depends on gathering specific types of evidence quickly. Useful evidence typically includes:

• Police reports documenting field sobriety tests or chemical test results
• Toxicology reports from blood or urine samples taken after the crash
• The truck's electronic logging device data showing hours of service
• Witness statements describing the driver's behavior before the crash
• The driver's employment records, including any prior substance-related incidents

Some of this evidence can be difficult to get without legal help. Because of this, working with an attorney early in the process helps make sure critical information doesn't disappear or get overlooked.

Does a DUI Charge Against the Truck Driver Affect Your Civil Case?

A criminal DUI charge against the truck driver is a separate legal process from your civil personal injury claim. The outcome of one doesn't automatically determine the other. However, say the driver is convicted of DUI. That conviction can serve as compelling evidence supporting your claim. It reflects an official finding that the driver was, in fact, impaired at the time of the crash.

Schedule a Free Consultation With Our Chicago Truck Accident Attorneys

Being hit by an impaired truck driver is a devastating experience. You deserve a legal team that will fight to hold every responsible party fully accountable. Our award-winning attorneys have been fighting for accident victims since 1997, bringing decades of experience to every case we handle throughout the Chicago area.

Contact Winters Salzetta O'Brien & Richardson, LLC at 312-236-6324 to talk to our Chicago, IL personal injury lawyers today.