SR-91 at Magnolia Avenue Live Traffic Cam, Fullerton

This roadside camera keeps an eye on State Route 91 at Magnolia Avenue in Fullerton, California, pointed at the westbound lanes, giving a real-time picture of how traffic is moving.

State Route 91 runs from Gardena in the South Bay across Orange County as the Artesia and Riverside freeways, through the Santa Ana Canyon to Corona and Riverside. Few Southern California freeways are as closely watched as SR-91, which carries a huge daily flow of commuters between homes in Riverside County and jobs in Orange and Los Angeles counties. Fullerton is home to Cal State Fullerton and a historic downtown with a busy train station.

Even a minor fender-bender can trigger slowdowns that stretch for miles on this busy corridor. The 91 Express Lanes, a toll facility in the median, offer an option to bypass the worst congestion. Brake lights stretching into the distance usually signal a slowdown ahead, while open lanes suggest a smooth trip.

Images may look grainy at night or during heavy rain, but the flow of lights still tells the story. Video for this page is supplied by Caltrans, the California Department of Transportation.