1 Killed in Truck Accident on U.S. Route 18 in Jefferson County, WI
Jefferson County, WI — March 12, 2025, one person was killed in a truck accident at about 4:15 on U.S. Route 19.
Authorities said an eastbound semi-truck collided with a vehicle that was crossing the highway on County Highway A after stopping at a stop sign.

The driver of the crossing vehicle, whose name has not been made public at this time, died at the scene of the crash, according to authorities.
The truck driver was not injured, authorities said.
Authorities have not released any additional information about the Jefferson County crash at this time. The accident is still under investigation.
Commentary
Crashes where a vehicle crosses a highway in front of a semi-truck raise serious concerns about visibility, right-of-way, and whether the driver had enough time to judge oncoming traffic safely. In this case, reports indicate that a vehicle stopped at a stop sign on County Highway A before entering U.S. Route 19, where it collided with an eastbound semi-truck. A full investigation should determine whether this was due to driver misjudgment, limited sightlines or other contributing factors.
One of the most important questions investigators should answer is whether the driver of the crossing vehicle accurately judged the truck’s speed and distance. Semi-trucks take much longer to stop than passenger vehicles, and a driver may assume they have time to cross when, in reality, the truck is approaching too quickly for a safe maneuver. Reviewing black box data, surveillance footage and witness statements will be crucial in understanding whether the driver had enough time to clear the highway.
Another key factor is whether visibility played a role. Were there trees, buildings or road signs obstructing the driver’s view of the oncoming truck? Were weather conditions such as fog or glare making it harder to see? If poor sightlines or environmental factors contributed to the crash, that should be examined closely.
Road design should also be considered. Some rural intersections have stop signs for cross traffic but no traffic signals or warning systems to help drivers gauge oncoming vehicles. Was this a high-speed crossing with limited time to react? If so, additional safety measures such as flashing warning lights, better signage or reduced speed limits for highway traffic may be necessary.
At this stage, there isn’t enough public information to determine exactly what led to this crash. But if authorities focus only on who had the stop sign without investigating why the vehicle proceeded into the truck’s path — whether due to misjudgment, poor visibility or road design — they risk missing key details. A thorough investigation should take all possible factors into account to ensure a full understanding of what went wrong and whether safety improvements are needed at this intersection.
“These are essential reads for anyone dealing with the aftermath of a truck wreck”– Attorney Cory Carlson