Traffic & Transit

Caltrans To Close Highway 1 Overnight In San Mateo

Motorists are advised to expect delays and use alternate routes to avoid the area, Caltrans said.

SAN MATEO, CA — Caltrans will close both the northbound and southbound lanes of state Highway 1 at Tom Lantos Tunnel, also known as Devil's Slide, on Thursday night.

The closure, for an emergency response drill, will take place from 8 p.m. to 4 a.m. the following morning, Caltrans said.

Motorists are advised to expect delays and use alternate routes to avoid the area, Caltrans said.

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