Underride and Jackknife Crashes in 18-Wheeler Crash Claims
Jackknife and Underride Crashes in 18-Wheeler Crash Claims Underride and jackknife crashes are two tractor-trailer crash types that often cause severe injuries. An underride crash happens when a smaller vehicle slides partly or completely beneath a trailer or truck body. A jackknife occurs when the tractor and trailer fold toward each other, often blocking several lanes. Each raises its own evidence questions for an 18-wheeler accident lawyer. How underride happens Ac