What Happens If a Commercial Truck Crashes Into a Bridge?
A standard commercial dry van trailer stands exactly 13 feet, 6 inches tall. Most modern interstate overpasses are built to accommodate this height. However, older city streets, rural routes, and historic train trestles frequently feature bridge clearances as low as 10 or 11 feet. When a commercial driver ignores clearance warning signs and attempts to drive under one, the resulting collision is catastrophic.
Known in the industry as "can-openers" or "bridge strikes," these accidents violently shear the roof off the trailer, destroying the cargo and scattering debris across the highway. Worse, striking a structural support pillar can cause a multi-million-dollar bridge to collapse entirely. Understanding exactly what happens if a commercial truck crashes into a bridge highlights the severe legal and financial consequences for the motor carrier.
The vast majority of bridge strikes are caused by a single negligent corporate act: allowing drivers to use consumer-grade GPS apps. Apps like Google Maps or Waze are designed for passenger cars and actively route drivers down low-clearance residential streets to save time. Commercial drivers are legally required to use specialized trucking GPS (like Rand McNally or Garmin dēzl) that specifically programs routes avoiding low bridges based on the truck's entered height.
The Financial Aftermath of a Bridge Strike
When a truck hits a bridge, the financial damages pile up incredibly fast, often bankrupting under-insured motor carriers:
The Department of Transportation (DOT) will immediately dispatch structural engineers to assess the concrete and rebar damage. The trucking company's liability insurance is legally on the hook to pay the state for all structural repairs, which can range from $50,000 for cosmetic concrete patching to tens of millions of dollars for a full bridge replacement.
When the roof of the trailer is peeled back, heavy cargo—like pallets of canned goods or machinery—often spills directly onto the cars driving behind the truck. The motor carrier is strictly liable for all bodily injuries and fatalities caused by their unsecured, spilled debris.
Under the Carmack Amendment, the trucking company must reimburse the shipper for the full value of the destroyed freight. Furthermore, the $40,000 trailer is usually written off as a total structural loss.
CDL Revocation and Fines
For the truck driver, a bridge strike is a career-ending event. Hitting a stationary object clearly marked with yellow clearance signs is considered gross negligence. The driver will likely be fired immediately, face thousands of dollars in traffic fines for ignoring posted signs, and suffer points on their CDL that will render them unhirable by any reputable carrier for years.