The incident happened just before 4 a.m. in westbound lanes near Beach Boulevard, according to the California Highway Patrol.
The worker, who was not a Caltrans employee, was in one of the lanes when a pickup truck hit them. Authorities said nobody has been taken into custody.

The victim, who has not been identified, was taken to the hospital where they died.
DEVELOPING: We will add more details to this report as they become available.