Date: February 27, 2026

District: District 4 

Contact: Jeneane Crawford

Phone: (510) 390-3253

SAN MATEO COUNTY ― Caltrans has rescheduled concrete placement work in San Mateo at the U.S. 101-SR-92 interchange. The westbound SR-92 closure originally scheduled for tonight will take place next week.

UPDATE: Monday, March 2: WB 92 to SB 101
The westbound SR-92 off-ramp to southbound U.S. 101 will be closed to complete bridge concrete placement. The closure will start at 9 p.m. and finish by 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.

In addition, the southbound 101 to Fashion Island ramp will be closed Monday, March 2 from 11 p.m. to 7 a.m.

Detour: Take westbound SR-92, exit at Delaware, turn right on Concar, right on Grant, left at 19th, and continue onto Fashion Island Blvd.

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 real-time traffic, click on Caltrans QuickMap: http://quickmap.dot.ca.gov/