In this image from a dashboard camera provided by the California Highway Patrol is a closed section of Interstate 80 at Donner Summit on Thursday, near Truckee, Calif.

In this image from a dashboard camera provided by the California Highway Patrol is a closed section of Interstate 80 at Donner Summit on Thursday, near Truckee, Calif.

In this image from a dashboard camera provided by the California Highway Patrol is a closed section of Interstate 80 at Donner Summit on Thursday, near Truckee, Calif.

In this image from a dashboard camera provided by the California Highway Patrol is a closed section of Interstate 80 at Donner Summit on Thursday, near Truckee, Calif.