Three lanes of the southbound U.S. Highway 101 north of Shoreline Boulevard were closed in Palo Alto after a sanitation truck turned over on the center divide on Wednesday afternoon.
The truck has possibly been involved in a collision with another vehicle and flipped on its roof at 12:26 p.m., California Highway Patrol spokesman Art Montiel said.
There were no injuries reported.
As of 2:28 p.m., only the #5 southbound lane was open while towing is in progress. There was no estimate of when the road would be cleared.