Operators are using two massive remote-controlled earth-moving machines, maneuvering them like toys in a massive sandbox.

Take a drive from Santa Cruz to San Francisco and see all the best beaches and state parks along the famous Highway 1.

Speed limits from the San Luis Obispo/Monterey county line to a point 55 miles to the north now range from 40 to 50 mph, where they used to be 55 mph, according to Caltrans spokesman Kevin Drabinski.

Stretching 644 miles along the coast of California, Highway 1 stands as an asphalt metaphor for the Golden State. It links the "Baywatch" beaches of Los Angeles, the sheer cliffs of Big Sur ...

Caltrans has lowered the speed limit through Big Sur, with local businesses continuing to struggle to lure visitors.

Caltrans District 5 via AP A portion of California's Highway 1 remains closed after a portion ... Never miss a story — sign up for PEOPLE's free daily newsletter to stay up-to-date on the ...