Accident Stale

CHP : Residual delays on I-280 Southbound entering at Mariposa St (San Francisco). On Ramp open. Expect delays.

A accident was reported on I-280 S near San Francisco on June 12, 2026 at 12:30 PM.

Road

I-280 S

Area

San Francisco

Address

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Started

Jun 12, 5:30 AM

Last Updated

1 hour, 20 minutes ago

Jun 12, 7:45 AM

Coordinates

37.7644, -122.3933

Update History

4 observations

CHP : Residual delays on I-280 Southbound entering at Mariposa St (San Francisco). On Ramp open. Expect delays. Jun 12, 7:30 AM

CHP : Traffic Collision with Injuries on I-280 Southbound entering at Mariposa St (San Francisco). On Ramp blocked. Expect delays. Jun 12, 7:15 AM

CHP : Traffic Collision with Injuries on I-280 Southbound entering at Mariposa St (San Francisco). On Ramp blocked. Expect delays. Jun 12, 6:30 AM

CHP : Traffic Collision with Injuries on I-280 Southbound entering at Mariposa St (San Francisco). On Ramp blocked. Expect delays. Jun 12, 5:45 AM

Source: 511_sfbay · ID 511.org/1507318 First seen Jun 12, 2026 5:45 AM