After being shut down Sunday due to heavy snow, hail, and black ice, and multiple traffic crashes, the Grapevine reopened Monday morning.
CalTrans tweeted just after 4 a.m. that southbound lanes were open with California Highway Patrol officers escorting drivers.
CHP tweeted just after 11:15 a.m. that northbound lanes were reopened, but warned drivers to be cautious of icy areas.
On Sunday, the 5 was closed in both directions from Parker Road in Castaic to Grapevine Road.
Hundreds of drivers were stranded, some able to pull off the road and find hotels while others were forced to sleep in their cars.