Driving on a California freeway most often places you near, in front of, or behind semi-trucks and 18-wheelers. While most often, drivers can go past trucks without getting into accidents, the reality is that truck accidents occur often and cause thousands of injuries and fatalities in the United States each year. Because of their size, weight, and force, truck accidents are also known to cause catastrophic injuries that can alter the lives of victims and require tens of thousands of dollars in medical care.