Caltrans has established traffic control on Highway 154 near San Antonio Creek Road as part of an ongoing emergency project to repair a slip out along the southbound shoulder of the highway.

Caltrans field staff working on these repairs observed tension cracks propagating up through the pavement which appears to be extending in length over the last several hours and includes an elevation differential between the cracks and the adjacent pavement. 

Travelers may encounter traffic control into the overnight hours, the agency said Thursday.

Caltrans may implement a closure of the southbound lane to traffic as Geotech engineers continue to assess this location.

Travelers can expect delays on Highway 154 and are encouraged to use U.S. Highway 101 as an alternate route.

Drivers can get roadway information at https://quickmap.dot.ca.gov/.

The California Highway Patrol traffic incident information page is at http://cad.chp.ca.gov.