San Mateo County ― Caltrans has scheduled nightly full ramp closures in the city of San Mateo from Sunday, October 25 through Friday, October 30. Crews will work to replace asphalt concrete surfacing and install a drainage system.

To facilitate this work, the following ramp closures will be in effect:

Westbound SR-92 Connector to Southbound US-101 (Loop Ramp)

• Traffic control in place:
  • Monday - Thursday: 9:00 PM to 5:00 AM
  • Friday: 10:00 PM to 7:00 AM
• Detour route: Westbound SR-92 → Loop off-ramp to Delaware St. → Eastbound Concar Dr. → Southbound S. Delaware St. → On-ramp to Eastbound Route 92 → Connector off-ramp to Southbound Route 101.

Northbound US-101 Off-Ramp to E. Hillsdale Blvd.

• Traffic control in place:
  • Sunday: 8:00 PM to 7:00 AM
  • Monday - Thursday: 10:00 PM to 7:00 AM
  • Friday: 10:00 PM to 9:00 AM
• Detour route: Northbound Route 101 → Connector off-ramp to Eastbound Route 92 → Off-ramp to Edgewater Blvd./Mariners Island Blvd. → Southbound Edgewater Blvd. → E. Hillsdale Blvd.

Fashion Island Blvd. On-Ramp to Southbound US-101

• Traffic control in place:
  • Sunday - Thursday: 7:00 PM to 6:00 AM
  • Friday: 7:00 PM to 8:00 AM
• Detour route:
  • From Eastbound Fashion Island Blvd.:
    • Southbound Baker Way → On-Ramp to Westbound Route 92 → Connector off-ramp to Southbound Route 101
  • From Westbound Fashion Island Blvd.:
    • Westbound 19th Ave. → Northbound Grant St. → Westbound Concar Dr. → Southbound S. Delaware St. → On-ramp to Eastbound Route 92 → Connector off-ramp to Southbound Route 101

This work is part of the $45M U.S. 101- SR-92 Short-term Improvements Project that is co-sponsored by the San Mateo County Transportation Authority and City/County Association of Governments. The project will bring operational improvements, enhancement to local access, and promotion of economic vitality to the region.

All work is weather dependent. Please drive with caution. Thank you for your patience as we work to maintain our state's highways, bridges, and tunnels.