Flash flood warnings remain in effect for parts of Santa Barbara County.
Drivers should avoid non-essential travel and use I-5 as an alternate route, Caltrans said.
Both companies offer trips northbound from the Ventura Harbor, at 1415 Spinnaker Dr., and southbound from the Santa Barbara Harbor, at 301 W. Cabrillo Blvd.
The death toll remains at 15, with 24 people missing.
Eliason said the extent of the damage has yet to be surveyed, and crews are working to clear roads.
The death toll in weather-related incidents in Santa Barbara County has risen to 15 early Wednesday, after a storm led to unsafe mudflows in the Thomas Fire burn area.
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Mud fills the interior of a auto destroyed in a rain-driven mudslide in a neighborhood under mandatory evacuation in Burbank, California, January 9, 2018.
Mud and debris from Southern California's wildfire-scarred hillsides flowed through neighborhoods and onto a highway Tuesday during a rainstorm, killing six people and sweeping homes from their foundations.
Lowe also posted prayers for mudslide survivors on Twitter after earlier chastising the media for focusing on Winfrey's presidential prospects in 2020 even as residents and rescuers searched for survivors in her neighborhood.
Approximately 300 people are still trapped in Romero Canyon, according to Santa Barbara County Sheriff Bill Brown. The search for victims is not.
Damaged homes, mud and debris near Randall Road.
At least eight people were killed in Southern California on Tuesday when torrential rain sent mud and debris streaming through Montecito in Santa Barbara County - a nightmarish development for a community that just endured the Thomas Fire, the worst wildfire in state history. Authorities say multiple rescues are underway throughout the area.
She's one of several celebrities who live in the wealthy enclave that was hit the hardest by the storm.