Microsoft Surface

More than 1 million tons of rock and dirt have to be moved off Highway 1. But how?

More than 1 million tons of rock and dirt have to be moved off Highway 1. But how?

Geologists and engineers crowded a conference room in San Luis Obispo on Wednesday to address the latest assault upon California’s most revered roadway.

Yet another stretch of Highway 1, that improbable serpentine hemming the continent’s western edge, had abruptly disappeared.

No one in the room was shocked or surprised. The scientists and builders knew what they were up against.

A week earlier, sensors in the mountains had picked up increased ground movement at a site 10 miles north of Ragged Point. On-site crews and equipment were evacuated, gates closed and locked.

On Saturday at 9:30 a.m., a hillside near a small ravine known as Mud Creek collapsed, sloughing...

69°