When a smaller vehicle collides with a commercial truck and slides beneath the trailer rather than bouncing back from it, that is an underride accident. The results are often fatal. Standard vehicle safety systems like airbags and crumple zones are designed for conventional impacts. They were not built to handle a situation where the entire front or roof of a car is sheared off by the underside of a massive steel trailer. These crashes happen in two main ways:
- Rear underride occurs when a car rear-ends a truck and slides under the back of the trailer
- Side underride occurs when a vehicle slides under the side of a trailer, often during a turn or lane change
Both types are violent. Both types are often deadly.
Why These Crashes Keep Happening
Commercial trucks are tall. A standard semi-trailer sits roughly four feet off the ground, which means the front end of a passenger car can slide directly underneath it in certain impact scenarios. That height gap is essentially a lethal opening.
Federal law requires rear underride guards on commercial trailers. The National Highway Traffic Safety Administration has documented that these guards, when present and functioning, can reduce fatalities. But the standards governing them have not kept pace with actual crash data. Common factors that contribute to underride accidents include:
- Damaged or missing rear guards
- Guards that bend or collapse on impact instead of stopping the vehicle
- No federal requirement for side underride protection
- Poor lighting on trailers at night
- Sudden braking by the truck driver without adequate warning
Side underride protection remains largely unregulated at the federal level, which leaves a significant gap in highway safety.
Who Bears Legal Responsibility
Liability in underride cases is rarely simple. It often extends well beyond the truck driver. Depending on the circumstances, a Bridgeport truck accident lawyer may pursue claims against:
- The trucking company for failing to maintain or inspect safety equipment
- The trailer manufacturer if the guard was defectively designed
- A cargo company if improper loading affected the trailer’s clearance height
- The truck driver if sudden or reckless maneuvers caused the collision
Each of these parties may carry separate insurance policies, which is one reason truck accident claims tend to be far more involved than standard auto accident cases.
What Connecticut Victims Should Know
Connecticut sees heavy commercial truck traffic, particularly along I-95 through the Bridgeport area. That volume increases the likelihood of encountering a truck with outdated safety equipment or a fatigued driver making poor decisions at speed.
If you or someone you love was hurt in an underride crash, the evidence collected in the immediate aftermath matters. This includes the truck’s event data recorder, maintenance logs, inspection records, and photographs of the underride guard. That evidence can disappear quickly once a trucking company’s legal team gets involved.
According to the Insurance Institute for Highway Safety, large truck crashes kill thousands of people every year, and underride collisions account for a disproportionate share of those fatalities.
Talk to an Attorney About Your Options
A Bridgeport truck accident lawyer at Nugent & Bryant understands how these cases are built and what it takes to hold multiple parties accountable when safety failures cause serious harm. If you were involved in an underride crash, reach out to our team to discuss your situation and take the first step toward protecting your rights.
