The southbound 5 Freeway in Glendale was closed Saturday night after debris fell from an overpass onto the road.
An apparent sinkhole that had opened up near the overpass caused chunks of concrete to fall onto the road near Western Avenue, the sergeant said. Victor Jackson, spokesman for the Glendale Police Department.
The debris prompted the California Highway Patrol to issue a Sigalert and block all southbound lanes around 6 p.m., CHP Officer Elizabeth Kravig said. Traffic was being diverted to Western Avenue, she said.
No cars were hit by the debris and no one was injured, Kravig said.
Kravig said CHP officers and Caltrans workers were still trying to assess the source of the debris, as it was unclear if it had fallen off the overpass or rolled off a hillside. He did not have an estimate for when the southbound lanes of the freeway would reopen.
No debris has been reported in the northbound lanes, Kravig added.