Accident
Moderate Severity
Active
CHP : Severe traffic alert and Traffic Collision with Injuries on I-280 Southbound between Mariposa St (San Francisco) and I-280 N-king ST-6TH ST Ramp Merge (San Francisco). All lanes blocked. Avoid the area.
A injury accident was reported on I-280 S near San Francisco on June 12, 2026 at 10:21 AM.
Last Updated
1 minute ago
Jun 12, 6:45 AM
Coordinates
37.7614, -122.3926
Update History
4 observations
CHP : Severe traffic alert and Traffic Collision with Injuries on I-280 Southbound between Mariposa St (San Francisco) and I-280 N-king ST-6TH ST Ramp Merge (San Francisco). All lanes blocked. Avoid the area.
Jun 12, 6:30 AM
CHP : Severe traffic alert and Traffic Collision with Injuries on I-280 Southbound between Mariposa St (San Francisco) and I-280 N-king ST-6TH ST Ramp Merge (San Francisco). All lanes blocked. Avoid the area.
Jun 12, 6:15 AM
CHP : Severe traffic alert and Traffic Collision with Injuries on I-280 Southbound between Mariposa St (San Francisco) and I-280 N-king ST-6TH ST Ramp Merge (San Francisco). All lanes blocked. Avoid the area.
Jun 12, 5:45 AM
CHP : Severe traffic alert and Traffic Collision with Injuries on I-280 Southbound between Mariposa St (San Francisco) and I-280 N-king ST-6TH ST Ramp Merge (San Francisco). All lanes blocked. Avoid the area.
Jun 12, 5:15 AM
Source: 511_sfbay · ID 511.org/1507288
First seen Jun 12, 2026 5:15 AM