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U.S. 101 and SR-92 Interchange Nighttime Ramp Closures on February 12 & February 23-27

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San Mateo County ― Caltrans has changed its upcoming ramp closures in San Mateo at the U.S. 101 - SR-92 interchange due to weather. Crews will install overhead signage and pour concrete for the bridge.

U.S. 101 and SR-92 Interchange Nighttime Ramp Closures detour map. From Westbound State Route 92, take the loop off-ramp to Delaware St, turn right on Concar, turn right onto South Delaware, merge onto eastbound SR-92 and access the off-ramp to southbound U.S. 101.

Westbound SR-92 off-ramp to southbound U.S. 101

  • Thursday, February 12 from 9 p.m. to 5:00 a.m.

Detour: Take the loop off-ramp to Delaware St, turn right on Concar, turn right onto South Delaware, merge onto eastbound SR-92 and access the off-ramp to southbound U.S. 101.

U.S. 101 and SR-92 Interchange Nighttime Ramp Closures detour map. From southbound US-101, take the eastbound SR-92 off-ramp, take the Mariner's Island Blvd exit and turn right, turn left onto Fashion Island Blvd, and turn right to merge onto westbound SR-92.

Southbound U.S. 101 off-ramp to westbound SR-92 and Fashion Island Blvd

  • Monday, February 23 from 10 p.m. to 6 a.m.
  • Tuesday, February 24 from 10 p.m. to 6 a.m.
  • Wednesday, February 25 from 10 p.m. to 6 a.m.
  • Thursday, February 26 from 10 p.m. to 6 a.m.
  • Friday, February 27 from 10 p.m. to 6 a.m.

Detour: Take the eastbound SR-92 off-ramp, take the Mariner's Island Blvd exit and turn right, turn left onto Fashion Island Blvd, and turn right to merge onto westbound SR-92.

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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