The California Department of Transportation (Caltrans Bay Area) will conduct its annual mandatory emergency response drill at the State Route 1 (SR-1) Tom Lantos (Devil’s Slide) Tunnels. The mandatory seven-hour emergency response drill begins Wednesday, February 3rd at 9:00 PM and concludes on Thursday, February 4th at 4:00 AM. The exercise is weather permitting.
For the safety of crews and the public, northbound and southbound traffic lanes on SR-1 through the Tom Lantos (Devil’s Slide) Tunnels will be closed during the exercise.
Lantos Tunnel-Detour Routes:
During the tunnel closures, the following detours between Pacifica and Half Moon Bay will be in effect. The California Highway Patrol (CHP) will be on scene to assist motorists:
- From Pacifica: North on SR-1 to southbound on Interstate-280 (I-280)
- From Half Moon Bay: East on State Route 92 (SR-92) onto northbound (I-280)
The emergency management exercise will be a coordinated effort including the CHP, San Mateo County Sheriff’s Office, Pacifica Fire and Police Departments, California Office of Emergency Services, Cal-Fire and other first responders. This exercise will include fire simulations, crash simulations, and smoke.
Caltrans thanks you for your patience as they work to maintain California’s highways, bridges and tunnels. Please #BeWorkZoneAlert