VIDEO DESCRIPTION

Body-camera footage showing how rapidly winter road conditions deteriorate, as a response to a vehicle that slides off a highway is followed by a semi losing control on a bridge and crashing into a guardrail, then another pickup sliding off in the same spot. Transportation officials warn that strong winds and heavy, fast-falling snow sharply reduce visibility and cause conditions to change minute by minute, especially on bridges and overpasses. Crews deploy hundreds of plow and salt trucks to keep roads passable rather than perfect, while drivers are urged to slow down, use caution, and allow extra travel time.