The Latest on the demolition of the 6th Street Bridge in Los Angeles (all times local):

12:08 p.m.

Crews have begun demolishing a downtown Los Angeles bridge that played a supporting role in many Hollywood chase scenes.

Mary Nemick of the city Public Works Department says giant jackhammers reduced 220 feet of the roadway to rubble as of Saturday morning. They're now working on bringing down three massive support columns.

A stretch of U.S. 101 is closed through Sunday afternoon to accommodate the work. Laurie Wonder of Caltrans says delays of 15 to 25 minutes are reported on other freeways but many drivers seemed to have heeded warnings to stay away from the area.

The 84-year-old bridge has appeared in many movies, including "Grease" and "Terminator 2."

Eventually, the entire 3,500-foot bridge will be replaced by a new roadway, which should open in 2019.