Please plan ahead and use alternate routes
San Mateo County ― Caltrans has scheduled overnight closures of U.S. 101 off-ramps at SR-92 in San Mateo starting on June 2 at 10 p.m. The ramps will be closed so that crews can safely construct a barrier as well as drill foundations for overhead sign structures. Motorists are advised to expect delays and allow extra time for their commute. Changeable messaging signs (CMS) and detours signs will be posted. Please drive with caution.
Overnight closures
10 p.m. to 5 a.m. , Monday, June 2 to Thursday, June 5
Detour information:
Southbound U.S. 101 to Fashion Island Boulevard:
- Exit at Hillsdale Boulevard and turn left onto Hillsdale Boulevard.
- Proceed to Norfolk Street and turn left.
- Continue to reach Fashion Island Boulevard.
Southbound U.S. 101 to Eastbound or Westbound SR-92:
- Exit at Hillsdale Boulevard and take eastbound Hillsdale Blvd.
- Take loop to northbound US-101.
- From northbound U.S. 101, follow signs to Route 92 in desired direction.
See map below.
All work is weather dependent. Please drive with caution. Caltrans thanks motorists for their patience with the 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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