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SAN MATEO COUNTY ― Caltrans is continuing excavation and paving work on the State Route 1 (SR-1) Multi-Asset Roadway Rehabilitation Project. Roadway excavation work will continue throughout the project limits during the day between Marine Blvd. and Wavecrest Rd., and drivers can expect shoulder closures and minimal traffic impacts.
Paving update
Starting Tuesday, April 28 and continuing through August 2026, crews will pave the roadway. Paving work will start near Half Moon Bay Airport and move south through the project limits. Crews will perform paving work overnight, necessitating lane closures and one-way traffic control. Drivers should expect minor delays between 9 p.m. and 7 a.m. A base layer of pavement will be laid on the roadway initially, and final paving work is expected to be completed by the end of August 2026.
Signal and crosswalk update
Signal operations will be set to an optimized schedule during construction at many intersections instead of “on-demand” activation. Drivers may notice delays even when pedestrians or cross traffic are not present. The sensors will be reactivated once the electrical work has been completed at each intersection.
Please note
On rare occasions, lanes may be closed as early as 6 p.m., and some daytime lane closures may be necessary at short notice. Work schedules may change due to weather.


