California Department of Transportation

09/25/2026 | Press release | Distributed by Public on 09/25/2026 15:26

Nightly Ramp Closures on SR-92 Interchange from September 27 - October 2

Nightly Ramp Closures on SR-92 Interchange from September 27 - October 2

Published: Sep 25, 2026

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, September 27 through Friday, October 2. Crews will work to install conduits and wiring for the ramp metering system and street lighting at the westbound SR-92 Connector to southbound US-101.

Ramp Closure Schedule: Sunday, September 27 through Friday, October 2

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

  • Times: Nightly from 9:00 PM to 5:00 AM
  • Detour route: From Westbound SR-92→ Loop off-ramp → Delaware St. → EB Concar Dr. → on-ramp to EB Rte 92 → Connector off-ramp to SB

Westbound SR-92 Mainline (1 Lane 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: Nightly from 9:00 PM to 5:00 AM.

Southbound US-101 Mainline (1-3 Lanes Closed)

  • 1 to 3 lanes will be closed, between the SR-84 junction and the SR-92 junction.
  • Traffic control in place: Nightly from 10:00 PM to 5:00 AM.

Northbound US-101 Mainline (1-3 Lanes Closed)

  • 1 to 3 lanes will be closed, between the SR-92 junction and Broadway.
  • Traffic control in place: Nightly from10:00 PM to 5:00 AM.

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.

For 24/7 traffic updates, please visit 511.org: https://x.com/511SFBay
For real-time information, visit Caltrans QuickMap: https://quickmap.dot.ca.gov
Follow us on X: https://x.com/CaltransD4
Or call 1-800-472-7623, 1-800-427-ROAD for state highway conditions statewide.

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California Department of Transportation published this content on September 25, 2026, and is solely responsible for the information contained herein. Distributed via Public Technologies (PUBT), unedited and unaltered, on September 25, 2026 at 21:27 UTC. If you believe the information included in the content is inaccurate or outdated and requires editing or removal, please contact us at [email protected]