Nov052026
What to Know About Jackknife and Underride Truck Crashes
What to Know About Underride and Jackknife Tractor-Trailer Crashes Underride and jackknife crashes are two kinds of tractor-trailer collisions that frequently cause severe injuries. In an underride crash, a smaller vehicle slides partly or fully under a trailer or truck body. In a jackknife, the tractor and trailer fold toward each other, often across several lanes. Each one raises distinct evidence questions for a truck accident attorney. What makes underride crashes de