Accident Moderate Stale

CHP : Traffic Collision on US-101 Southbound at E Hillsdale Blvd (San Mateo). Lane affected. Expect delays.

Road

Area

Started

Apr 12, 5:15 AM

Last Seen

1 hour, 17 minutes ago

Coordinates

37.5400, -122.2839

Update History

4 observations

CHP : Traffic Collision on US-101 Southbound at E Hillsdale Blvd (San Mateo). Lane affected. Expect delays. Apr 12, 5:30 AM

CHP : Traffic Collision on US-101 Southbound at E Hillsdale Blvd (San Mateo). Lane affected. Expect delays. Apr 12, 5:15 AM

CHP : Traffic Collision on US-101 Southbound at E Hillsdale Blvd (San Mateo). Lane affected. Expect delays. Apr 12, 5:00 AM

CHP : Traffic Collision on US-101 Southbound at E Hillsdale Blvd (San Mateo). Lane affected. Expect delays. Apr 12, 4:30 AM

Source: 511_sfbay · ID 511.org/1480239 First seen Apr 12, 2026 4:30 AM