Crash on US-101 N/B at Ralston Avenue, San Mateo, California

Tuesday, March 17, 2026 at 5:35 PM

Injury crash4 vehicles

From the CHP CCRS, record last updated October 25, 2026. No changes since first published.

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Damage area not recorded

Blu/Whi Three or More Axle Truck

Driver, male, 54Restraint: Occupant Lap Shoulder Harness Used. Airbag: Not Required
Not injured

Damage area not recorded

White Passenger Car Station Wagon Jeep

Driver, male, 41Restraint: Occupant Lap Shoulder Harness Used. Airbag: Air Bag Deployed
Not injured

Damage area not recorded

Gray Passenger Car Station Wagon Jeep

Driver, male, 33Restraint: Occupant Lap Shoulder Harness Used. Airbag: Air Bag Not Deployed
Possible injury

Damage area not recorded

Gray Mini Van

Driver, female, 41Restraint: Occupant Lap Shoulder Harness Used. Airbag: Air Bag Not Deployed
Possible injury
Passenger, male, under 18Restraint: Occupant Lap Shoulder Harness Used. Airbag: Air Bag Not Deployed
Not injured

204 crashes recorded on US-101 N/B in San Mateo in the last 12 months, 79 with injuries.

Apr 16, 2026, Edgewater BL at Baffin St2 vehicles, 1 injuredInjury crash
Apr 14, 2026, US-101 N/B at Hillsdale Boulevard2 vehiclesProperty damage only
Apr 14, 2026, US-101 Southbound at Ralston Avenue2 vehiclesProperty damage only
Apr 12, 2026, US-101 N/B at Ralston Ave2 vehiclesProperty damage only
Apr 11, 2026, US-101 N/B at Ralston Ave2 vehicles, 1 injuredInjury crash

Source: CHP CCRS
Updates: Changes the state makes to this record are applied here when the source publishes them
First published here: October 25, 2026
Last updated: October 25, 2026, no changes recorded
What is left out: Names, addresses, plates, and license and insurance numbers are not in the public data and never appear here

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