What Caused the Semi Crash on I-77 in Huntersville, NC?

Michael GrossmanMay 20, 2025 2 minutes

A crash involving a tractor-trailer blocked the northbound lanes of Interstate 77 in Huntersville on the afternoon of May 19. According to the North Carolina Department of Transportation, the collision occurred shortly after 4:00 p.m. near the Hambright Road bridge. 

Emergency responders, including firefighters and a hazmat team, were dispatched to manage the scene and address any potential spill or fire hazards. Medic officials confirmed that one individual sustained life-threatening injuries and was transported for emergency care. Details about the sequence of events and the cause of the crash have not yet been released.

Whenever a tractor-trailer is involved in a highway crash that leads to life-threatening injuries, I find myself asking whether anything more could have been done to prevent it. In my experience handling commercial vehicle accident cases, it's essential that every possible contributing factor is examined.

Could Fatigue or Inattention Have Played a Role?

At this point, it's too early to say exactly what caused the crash. However, in many serious commercial vehicle accidents, distraction or fatigue on the part of a driver can limit their ability to respond to sudden traffic changes. Truck drivers are often on the road for long stretches, and even momentary lapses in awareness due to a phone, GPS device, or simple exhaustion can have serious consequences. Investigators will need to review the driver's logbooks, electronic logging device (ELD) data, and any dash cam footage to determine whether the truck driver was alert and operating within federal hours-of-service regulations.

Were There Mechanical Issues with the Tractor-Trailer?

It's also worth considering whether the vehicle itself was in proper working condition at the time of the crash. Problems with brakes, steering systems, or tires can prevent a driver from taking corrective action, even if they’re alert and paying attention. A thorough inspection of the semi-truck, including its maintenance records and post-crash mechanical condition, will be necessary to identify or rule out any equipment failure.

What Should Be Examined to Understand the Cause?

To get a clear picture of what happened, investigators should analyze data from the tractor-trailer’s Engine Control Module (ECM), which can show the vehicle’s speed, braking effort, and throttle input in the moments before the crash. Physical evidence from the scene, such as skid marks, point of impact, and debris patterns, can help reconstruct the sequence of events.

Why a Detailed Investigation Is So Important

In my experience, the smallest oversight can lead to a serious accident. Whether the issue was related to driver inattention, vehicle condition, or something else entirely, only a detailed and impartial investigation can uncover the truth. Getting answers is key to assigning accountability where necessary and understanding exactly what went wrong and why.