Nightly Closures on SR-92/101 Interchange in San Mateo from October 11th - 15th

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 from Sunday, October 11 through Thursday, October 15. Crews will work to remove and install K-rail in preparation for paving and temporary striping. Additionally, crews will continue to install conduits and street lighting.

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:
  • Sunday, October 11: 10:00 PM – 5:00 AM
  • Monday, October 12 - Thursday, October 15: 9:00 PM - 5:00 AM
• Detour route: From WB SR-92 → Loop off-ramp → Delaware St. → EB Concar Dr. → On-ramp to EB SR-92 → Connector off-ramp to SB US-101.

Southbound US-101 Connector Off-Ramp to Eastbound SR-92

• Traffic control in place:
  • Monday, October 12 – Thursday, October 15: 11:00 PM – 7:00 AM
• Detour route: From SB US-101 → Off-ramp to EB Fashion Island Blvd. → SB Mariners Island Blvd. → On-ramp to EB SR-92

Crews will additionally perform work at the following locations:

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

• One lane on WB SR-92 will be closed between the NB US-101 off-ramp and the SB US-101 loop ramp.
• Traffic control in place:
  • Sunday, October 11 - Thursday, October 15: 9:00 PM – 6:00 AM

Southbound US-101 Mainline (1 Lane will be Closed)

• One lane will be closed, between 3rd Avenue exit and the Hillsdale off-ramp.
• Traffic control in place:
  • Sunday, October 11 - Thursday, October 15: 10:00 PM – 5:00 AM

Northbound US-101 Mainline (1 Lane will be Closed)

• One lane will be closed, between the Hillsdale off-ramp and 3rd Avenue exit.
• Traffic control in place:
  • Sunday, October 11 - Thursday, October 15: 10:00 PM – 5:00 AM

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

• One lane will be closed, between the NB/SB US-101 Connector Ramp to East of Mariners Island Boulevard.
• Traffic control in place:
  • Sunday, October 11 - Thursday, October 15: 10:00 PM – 7:00 AM

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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.