Pierce County, WA — July 25, 2025, a motorcyclist was injured in an early morning truck accident on State Route 410 south of Sumner.

Authorities said a westbound semi-truck crashed into a concrete barrier on Ehli Hill. The collision knocked the barrier into the opposite lanes, where it was hit by an eastbound motorcycle.

The motorcyclist, whose name has not been made public yet, was seriously injured in the crash, according to authorities.

The truck driver was arrested on suspicion of driving under the influence of alcohol and vehicular assault, authorities said.

Authorities have not released any additional information about the Pierce County crash at this time. The accident is still under investigation.

Commentary by Attorney Michael Grossman

When a truck hits a barrier and sends concrete flying into oncoming traffic, people naturally want to know: How could something like that happen, and how do we make sense of who’s responsible?

In this particular crash, a semi-truck reportedly struck a concrete divider, sending chunks into opposing lanes where an oncoming motorcycle collided with the debris. Authorities arrested the truck driver on suspicion of DUI and vehicular assault, which suggests they believe the crash resulted from some kind of driver misconduct. But from a legal standpoint, it’s not enough to rely on initial suspicions. If accountability is going to mean anything, it has to be based on evidence.

That starts with understanding exactly what the truck was doing on that stretch of SR 410 at the time of the crash. Was it speeding or drifting? Did the driver fall asleep at the wheel? Was he impaired, as police suspect? These are serious claims, but they can, and should, be verified through objective data. For instance, modern trucks are often equipped with engine control modules (ECMs), dash cams and in-cab cameras. These systems can show how fast the truck was going, whether the driver hit the brakes, and what was happening inside the cab moments before the crash.

If this data confirms impairment, that opens one line of accountability. But there are other questions too: Was the driver supposed to be on duty at that time? Had he been working too many hours? Did the company conduct proper background checks before hiring him? I’ve handled cases where companies hired drivers with prior DUI records or a history of dangerous behavior behind the wheel, because they either didn’t look closely enough or didn’t care.

Another issue here is the severity of the outcome. A concrete barrier isn't supposed to become a projectile. Depending on how the barrier was designed and installed, and how it failed in this crash, there could also be questions for whoever maintains that section of roadway. Was the barrier improperly secured? Was it deteriorated or already damaged?

We don’t yet have answers to many of these questions, and until those facts are uncovered, it’s premature to say exactly who’s to blame. But this is the kind of situation where multiple layers of responsibility often emerge, and real investigation, not speculation, is the only way to reach the truth.

Key Takeaways:

• The key legal question is not just that a truck hit a barrier, but why it did and what role the driver’s alleged intoxication played.
• Electronic data from the truck (ECM, dash cams, etc.) is essential to confirm speed, braking and driver behavior.
• A thorough investigation should examine both the driver and the trucking company’s hiring, training and oversight practices.
• The design and condition of the barrier itself may be relevant if it failed in a way that made the crash worse.
• Real accountability comes only after a full review of the evidence, not just after an arrest.