What Caused the Semi Crash on Route 11 in Silver Spring Township, PA?

Michael GrossmanMay 27, 2025 2 minutes

Emergency crews in Cumberland County responded to a crash around 5:40 p.m. Wednesday evening on northbound Route 11 near Kost and Ridge Hill roads. Authorities say a car became lodged beneath a tractor-trailer during the incident. One individual was transported to a nearby hospital, but the severity of their injuries remains unknown.

Whenever I hear about a collision where a passenger vehicle ends up beneath a semi-truck, I’m reminded of just how critical it is to understand every contributing factor. In my experience, these types of crashes often demand close scrutiny of driver behavior, vehicle positioning, and the condition of both vehicles involved.

What Led to the Car Being Pinned Under the Trailer?

At this stage, it's not clear how the car came to be trapped beneath the trailer. In some situations, the semi may have been turning, changing lanes, or stopping suddenly. Review of in-cab camera footage, traffic cameras, and GPS data could help determine the position of each vehicle before impact.

Could Mechanical Issues Have Played a Role?

Given the severity of the outcome, it's also important to assess whether any component failure, including brakes, lighting systems, underride guards, or steering mechanisms, may have contributed. A tractor-trailer in poor mechanical condition may not stop or maneuver as expected, increasing the likelihood of a crash. Investigators should conduct a full inspection of the semi-truck and trailer, including its maintenance records, to determine if the vehicle was safe to operate at the time.

What Evidence Should Be Reviewed to Understand What Happened?

Getting to the bottom of how a vehicle ended up wedged beneath a semi requires detailed forensic work. Investigators should examine Engine Control Module (ECM) data, which can show braking effort and speed before impact. Physical evidence at the scene like skid marks, damage patterns, and vehicle positions can help reconstruct the sequence of events. Any available dash cam or surveillance video could also provide critical insight into what each driver was doing in the moments before the crash.

Why Investigations Matter in Semi-Truck Crashes

In my experience handling serious truck accidents, I’ve found that these cases are rarely straightforward. Multiple contributing factors often overlap, whether related to driver awareness or mechanical issues. A thorough investigation not only helps determine what went wrong, but it also provides answers to those affected.