Highway 1 commuters will need to a find a different route after a washout has undermined the road south of Lompoc.
An emergency repair project on the roadway, a half mile north Jalama Road, will lead to a full closure from 8 a.m. to 4 p.m. over the next few days, Caltrans representatives said.
Drivers also can expect a lane closure and around-the-clock, one-way traffic control from 4 p.m. to 8 a.m. Delays are not expected to exceed 20 minutes.
“Work is expected to take a few weeks to complete & during that time full highway closures will be necessary.,” Caltrans offcials said on Twitter.
Pictures show a segment of the guard rail had fallen below the road after the collapse of the cliff below.
Repairs, estimated at $3 million, will be completed by Granite Construction of Watsonville.
The work will occur over the next three weeks, although weather may cause delays.
Signs will be in place, and drivers should plan on extra time due to the delays.
Highway 1 is a popular route for commuters between the Lompoc Valley and the South Coast.
The damage and repair work will increase traffic on the alternative route, Highway 246 from the Lompoc Valley to Buellton to access Highway 101.
Caltrans crews noted other closures and cleanup work taking place Monday.
Highway 166 reopened Monday night after being shut down from Highway 101 to Highway 33 due to mudslides.
Highway 135 between Orcutt and Los Alamos closed for a time Monday while crews continued cleaning up from the storms.
A number of Santa Barbara County roads remain shut down due damage from the series of storms that have hammered the Central Coast.
This includes East Camino Cielo from Highway 154 to Gibraltar Road, Painted Cave Road at Highway 154 and Stagecoach Road from Paradise Road to Highway 154.
Gibraltar Road has been closed north of the city of Santa Barbara and several sections of Refugio Road remain impassable or allow emergency access only.
The county also listed a bridge closure on Padaro Lane and closure of East Mountain Drive at the Cold Springs Trailhead.
Tepusquet Road from Santa Maria Mesa Road to Highway 166 is closed, with emergency access only.
West Main Street has closed at the Guadalupe Dunes Park kiosk.
San Miguelito Canyon Road is closed at Miguelito Park with emergency access and essential personnel only.
County officials urged drivers not to move or drive around road closure signs.
A full list of county road conditions can be found at the Santa Barbara County Public Works Department website, available by clicking here.