A stretch of Interstate 80 through Northern California is among the most dangerous interstate highways in the United States, a study reported.

Interstate 5 is a major route for illegal marijuana trafficking through Shasta and Siskiyou counties in Northern California. Law enforcement in Siskiyou County reported two of the largest marijuana ...

Gridlock reigned Saturday on one of California's most vital freeways after state officials closed a 17-mile stretch of Interstate 5 in response to a pre-planned event in which live-fire artillery ...

A vital 17-miles stretch of Interstate 5 in Southern California was cut for hours Saturday after military officials confirmed that live-fire artillery rounds will be shot over the freeway during a ...

Interstate 5 was closed for hours and a shelter-in-place was imposed after a gas line rupture north of Los Angeles.

California lawmakers are demanding answers after a live fire demonstration over Camp Pendleton Saturday led to a misfire that rained shrapnel on Interstate 5, striking two California Highway Patrol ...