Jackknife and Underride Crashes in 18-Wheeler Crash Claims
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 blocking several lanes. Each raises its own evidence questions for an 18-wheeler accident lawyer. What makes underride crashes d