Video: Why are big rigs crashing on Interstate 5?

Caltrans is doing skid tests on part of Interstate 5 south of downtown Sacramento to see if tires can grip the pavement in wet weather. Big rigs recently crashed in three separate accidents on this stretch of road.
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Caltrans is doing skid tests on part of Interstate 5 south of downtown Sacramento to see if tires can grip the pavement in wet weather. Big rigs recently crashed in three separate accidents on this stretch of road.