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Devil's Slide Project | Site Map

Tunnels

Bridge

Tunnels

Operations

Road Re-Alignment

Project Site Location and Map:

The Devilís slide Project is located on Route 1 in San Mateo County midway between the town of Montara and the Linda Mar District of Pacifica. The Project area is characterized by a steep, rocky coastline and is often subject to road closures from rockslides.

The north portion of the project is located approximately two miles south of Rockaway Beach and the town of Pacifica. The south portion of the project site is located approximately two miles north of the community of Montara, and five miles north of the city of Half Moon Bay.

The Devilís Slide Tunnels Project traverses Shamrock Ranch and the bores are located through a portion of the San Pedro Mountain. The tunnel design is a 4,000 ft. long double-bore facility with one lane in each direction.