Suing for Underride and Override Semi-Truck Collisions in Illinois

Step-by-Step Process to File a Claim in Illinois

Being involved in an underride or override collision with a massive commercial semi-truck is one of the most terrifying experiences a driver can face. In Illinois, these complex personal injury claims are handled in local courts, such as the Circuit Court of Cook County, Chicago or 18th Judicial Circuit Court of DuPage County, Wheaton. Navigating the aftermath involves dealing with aggressive corporate insurance defense teams. Because these cases require immense technical evidence, finding a seasoned local lawyer in our directory is one of the best steps you can take to protect your rights.

Step 1: Securing the Scene and Police Report

Immediately after a crash in Chicago, Peoria, or Rockford, emergency medical care is the top priority. The Illinois State Police, Springfield or local authorities will investigate the scene. You must ensure that an official Form SR 1050, Illinois, Illinois Department of Transportation, Illinois Traffic Crash Report is filed. This document contains initial fault determinations and critical details about the truck's position and the driver's commercial information.

Step 2: Sending a Spoliation of Evidence Letter

Trucking companies are only required to keep certain records for a limited time. Your attorney will immediately send a legally binding "spoliation letter" to the trucking company. This forces them to preserve the truck in its post-crash condition, along with the driver's logbooks and the truck's "black box" data. Without this, crucial evidence proving the truck's rear impact guards failed might "accidentally" disappear or be repaired.

Step 3: Filing the Lawsuit and Discovery

If a fair settlement cannot be reached with the insurance company, your lawyer will file a complaint at law pursuant to 735 ILCS 5/2-601 et seq. in the county where the accident occurred. During the "discovery" phase, both sides exchange evidence. In cases like Sperl v. C.H. Robinson Worldwide, Inc., 408 Ill. App. 3d 1051 (IL Appellate Court 2011), Illinois courts heavily scrutinized the duty of care that trucking operations owe to the public. Your legal team will depose the truck driver, safety managers, and the mechanics responsible for maintaining the truck.

Step 4: Expert Accident Reconstruction

Underride and override cases rarely rely solely on witness testimony. Your lawyer will likely hire accident reconstruction experts and biomechanical engineers. They will analyze the crush damage to your vehicle, the speed of the truck, and whether the truck met federal safety standards to prove liability definitively.

The Danger of Underride Collisions

An underride collision happens when a smaller passenger vehicle slides underneath the trailer of a semi-truck, often shearing off the roof of the car. To prevent this, federal law under 49 C.F.R. § 393.86 requires commercial trailers to be equipped with Rear Impact Guards (RIGs), commonly known as Mansfield bars. However, if these guards are rusted, poorly welded, or improperly maintained, they fail upon impact.

Rear-End Underrides on Dark Highways

Many rear-end underrides occur at night on stretches like I-80 or I-55 when a truck is parked illegally on the shoulder or moving far below the speed limit. To make trailers visible, the National Highway Traffic Safety Administration, Washington enforces strict rules regarding red and white reflective conspicuity tape. If the tape is covered in mud, missing, or faded, a driver may not realize how close the trailer is until it is too late.

Side Underrides During Illegal U-Turns

Side underrides frequently happen when a semi-truck attempts a slow, wide turn or an illegal U-turn across multiple lanes of traffic, essentially creating an invisible wall. Currently, side underride guards are not universally mandated by federal law, which makes proving the truck driver's negligence in executing the turn-rather than an equipment failure-the focal point of the lawsuit.

Override Collisions in Stop-and-Go Chicago Traffic

An override collision is the terrifying opposite: the semi-truck fails to stop in time and drives up and over the back of a smaller passenger car. This is incredibly common in the notorious stop-and-go traffic on the Dan Ryan Expressway or the Tri-State Tollway. Overrides are almost always the fault of the truck driver due to following too closely, speeding, or distracted driving. A fully loaded 80,000-pound truck requires significantly more stopping distance than a car, and failing to account for traffic conditions is a direct breach of the driver's duty of care.

How Much Does it Cost in Illinois?

Personal injury lawsuits for trucking collisions are generally taken on a contingency fee basis, meaning you do not pay hourly rates out of pocket.

How Long Does the Process Take?

Under 735 ILCS 5/13-202, the statute of limitations to file a personal injury lawsuit in Illinois is strictly 2 years from the date of the crash. However, actually resolving a complex commercial trucking case can take anywhere from 18 months to 3 years. The timeline depends on the severity of your injuries, the duration of your medical treatment, and how aggressively the trucking company disputes liability.

Frequently Asked Questions (FAQ)