CRYSTAL LAKE, McHenry County, Ill., Sept. 23, 2026 — A car and a semi-truck collided head-on on Tuesday afternoon, September 22, at Walkup Road and Running Iron Drive in Crystal Lake, according to the McHenry County Sheriff's Office. At least one person was reportedly trapped in the wreckage, and one victim was reported unresponsive at the scene.
The Crystal Lake Fire Rescue Department and sheriff's deputies responded to the intersection after the report came in. A second ambulance was requested, and a medical helicopter was placed on standby, though it was not confirmed whether the helicopter was ultimately used to transport anyone.
The extent of injuries has not been officially released. The condition of the person reported to be unresponsive was not confirmed as of this writing.
Walkup Road was shut down between Crystal Springs Road and Edgewood Road for what authorities said would be an extended period while the crash is investigated. No cause has been released, and the crash remains under investigation.
We wish the injured a complete and speedy recovery.
Who Faces the Greatest Risk in a Head-on Crash With a Semi-Truck
Size and weight differences drive the outcome in most car-versus-truck collisions. A loaded semi-truck can weigh 20 to 30 times as much as a passenger car, so in a head-on impact, the car and its occupants absorb most of the crash energy. Drivers and passengers in the smaller vehicle are far more likely to be seriously hurt or killed than the truck driver.
According to the Insurance Institute for Highway Safety, 44 percent of fatally injured passenger-vehicle occupants in frontal impacts were belted in 2023. That figure points to how much protection seatbelts still provide even in the most severe frontal collisions, and how many people in fatal crashes were not using them.
Occupants seated in older cars, smaller sedans, and vehicles positioned closest to the point of impact tend to face the highest risk in these collisions. Location also matters: rural two-lane roads and roads that mix truck traffic with passenger vehicles, like many routes through McHenry County, see a steady share of these crashes because there is often no barrier separating opposing lanes.
Frequently Asked Questions
How can drivers share the road safely with trucks?
Give trucks extra space, especially when passing or merging, and avoid lingering in a truck's blind spots. Trucks need more room to see smaller vehicles and to react to sudden changes in traffic.
Does driver fatigue play a role in truck crashes?
Fatigue is a known factor in commercial truck crashes, as long hauls and irregular schedules can affect a driver's alertness. Federal rules limit how many hours a truck driver can be on the road, but investigators still commonly evaluate fatigue as a possible contributing factor after a serious crash.
What should I do after a crash involving a commercial truck?
Call 911, move to a safe location if possible, and seek medical evaluation even if injuries seem minor. Get the truck company's information along with the driver's, and document the scene with photos if you're able.
Why do trucks need so much distance to stop?
A fully loaded semi-truck can take the length of a football field or more to stop at highway speed, far longer than a passenger car. That extra stopping distance is why sudden braking or last-second lane changes near trucks are especially dangerous.
What to Do After a Head-On Crash With a Truck in Crystal Lake, IL
If you're involved in or witness a serious crash, call 911 immediately and stay clear of traffic until help arrives. Even if you feel fine, get checked by a medical professional soon after, since injuries from a head-on impact aren't always obvious right away.
Keep any paperwork from police, fire, or EMS responders, and if you're able, note what you saw and when. Residents near Walkup Road should expect delays and follow posted detours while the investigation continues. Anyone with information about the crash is encouraged to contact the McHenry County Sheriff's Office.
