Northbound Tunnel, November 14 and 15
8:00pm – 4:00am Each Night
SAN MATEO COUNTY — Caltrans has scheduled overnight closures of northbound State Route (SR-1) at the Tom Lantos Tunnel (Devil’s Slide). The closures are to facilitate drain cleaning.
Traffic Control Measures:
One-way traffic control will be in place to safely guide vehicles through the open tunnel. Provisions have been made for emergency vehicle access.
Closure Schedule:
- Northbound Tunnel only – November 14 and 15 - 8:00 PM to 4:00 AM
Changeable message and directional signs will be in place to assist motorists traveling in the area. The California Highway Patrol (CHP) will be on site during the closures.
Please drive with caution. Slow for the Cone Zone and Be Work Zone Alert. Caltrans thanks motorists for their patience while we work to maintain our state’s highways, bridges, and tunnels.
For real-time traffic, click on Caltrans QuickMap: http://quickmap.dot.ca.gov/
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