Accident High Severity Resolved

CHP : Traffic Collision on I-280 Southbound south of I-280 S-CA-92 W Ramp (San Mateo). On Ramp affected. Expect delays.

A high-severity accident was reported on I-280 S near San Mateo on October 1, 2026 at 1:57 AM.

Road

I-280 S

Area

San Mateo

Address

Loading…

Started

Sep 30, 6:57 PM

Last Updated

3 weeks, 5 days ago

Sep 30, 7:00 PM

Resolved

Oct 1, 1:00 AM

Coordinates

37.5280, -122.3597

Update History

1 observations

CHP : Traffic Collision on I-280 Southbound south of I-280 S-CA-92 W Ramp (San Mateo). On Ramp affected. Expect delays. Sep 30, 7:00 PM

Source: 511_sfbay · ID 511.org/1557187 First seen Sep 30, 2026 7:00 PM