A trailer carrying 72,000 pounds of scrap metal crashed on the 5 Freeway near Burbank Boulevard early Tuesday, according to the California Highway Patrol.
Authorities received a call around 3:30 a.m. when the driver apparently lost control trying to avoid another vehicle on the southbound 5 Freeway just north of Burbank, CHP officer Ryan Bejar said.
That caused the big rig to hit the right shoulder on the freeway, spilling its contents and shutting down all southbound lanes, CHP said.
It was initially reported that the truck hit the center divider.
Some lanes remained close at 10 a.m. as crews cleaned up the scene, Caltrans said.
CHP estimated all lanes to reopen by noon.