Nightly Closures on SR-92/101 Interchange in San Mateo from October 4th - 9th

San Mateo County ― Caltrans has scheduled nightly full ramp closures on the westbound SR-92 connector to southbound US-101 (Loop Ramp) in the city of San Mateo on Sunday, October 4 through Friday, October 9. Crews will work to install conduits for the ramp metering system and street lighting along the Westbound SR-92 Connector to Southbound US-101.

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

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

• Full ramp closure:
  • Sunday: 10:00 PM – 5:00 AM
  • Monday - Thursday: 9:00 PM - 5:00 AM
• Detour route: From Westbound SR-92 → Loop off-ramp → Delaware St. → Eastbound Concar Dr. → On-ramp to Eastbound Route 92 → Connector off-ramp to Southbound Route 101.

Crews will additionally conduct electrical work at E. Hillsdale Boulevard and Eastbound SR-92/Mariners Island Boulevard:

Westbound SR-92 Mainline (1 Lane will be Closed)

• One lane on Westbound SR-92 will be closed between the Northbound US-101 off-ramp and the Southbound US-101 loop ramp.
• Traffic control in place:
  • Sunday - Thursday: 9:00 PM – 6:00 AM

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

• Full ramp closure:
  • Monday - Friday: 10:00 PM - 7:00 AM
• Detour route: From Northbound Route 101 → Connector off-ramp to Eastbound Route 92 → Off-ramp to Edgewater Blvd./Mariners Island Blvd. → Southbound Edgewater Blvd. to E. Hillsdale Blvd.

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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.