CA · Highway

I-280 S Accidents & Crashes

I-280 S has recorded 1,244 traffic crashes in California since 2024, with no fatalities on record. In the last 24 hours, 5 new crashes were reported. The highest crash volumes are concentrated near Santa Clara and San Mateo.

Data is sourced from the California Crash Records System (CCRS), maintained by the California Highway Patrol and updated daily, and the CA 511 live incident feed, refreshed every 15 minutes. Records include crash severity, injury data, vehicle information, and precise geographic coordinates. Last updated Oct. 26, 2026.

Breakdown by type: 476 accident, 64 construction.

540

Total Crashes

Filtered results

0

Fatalities

Fatal injury reports

1

Today

Reported since midnight

Today's Accidents Today's Fatalities

Crash locations on I-280 S. Click a marker to view details.

Crash Records

I-280 S Incidents 540 results

476 accident 64 construction

CHP : Traffic Collision with Injuries on I-280 Southbound north of S 7TH St (San Jose). Right lanes blocked. Expect delays.

Moderate Accident

Santa Clara 13 hours, 28 minutes ago

CHP : Traffic Hazard on I-280 Southbound north of Bunker Hill Dr (San Mateo). Left lane affected. Expect delays.

Moderate Accident

San Mateo 19 hours, 13 minutes ago

Caltrans : Roadwork on I-280 Southbound between Magdalena Ave (Los Altos) and Foothill Expy (Los Altos). Lane closed until 4 PM. From 9:15 AM Monday, October 26, 2026 to 4:15 PM Monday, October 26, 2026.

Santa Clara 22 hours, 13 minutes ago

Caltrans : Roadwork on I-280 Southbound at El Monte Rd (Los Altos Hills). Lane closed until 4 PM. From 9:15 AM Monday, October 26, 2026 to 4:15 PM Monday, October 26, 2026.

Santa Clara 22 hours, 13 minutes ago

Caltrans : Roadwork on I-280 Southbound at Crystal Springs Rd (San Bruno). Lane closed until 3 PM. From 9:00 AM Monday, October 26, 2026 to 3:00 PM Monday, October 26, 2026.

San Mateo 22 hours, 13 minutes ago

CHP : Traffic Hazard on I-280 Southbound north of Sneath Ln (San Bruno). Center lanes affected. Expect delays.

Moderate Accident

San Mateo 1 day, 2 hours ago

CHP : Traffic Hazard on I-280 Southbound north of Foothill Expy (Los Altos). Center Divider affected. Expect delays.

Santa Clara 1 day, 10 hours ago

CHP : Disabled vehicle on I-280 Southbound south of Alpine Rd (Menlo Park). Right shoulder affected. Expect delays.

Moderate Accident

San Mateo 1 day, 12 hours ago

CHP : Traffic Hazard on I-280 Southbound north of Monterey Blvd (San Francisco). Lane blocked. Expect delays.

Moderate Accident

San Francisco 1 day, 14 hours ago

CHP : Traffic Collision on I-280 Southbound north of Bird Ave (San Jose). Lane affected. Expect delays.

Moderate Accident

Santa Clara 1 day, 19 hours ago

CHP : Traffic Collision on I-280 Southbound north of Golf Course Dr (Unincorporated). Center Divider affected. Expect delays.

San Mateo 1 day, 20 hours ago

CHP : Vehicle fire on I-280 Southbound north of Alemany Blvd (San Francisco). Off Ramp closed. Expect delays.

San Francisco 2 days, 20 hours ago

CHP : Traffic Collision on I-280 Southbound at Bird Ave (San Jose). Lane affected. Expect delays.

Moderate Accident

Santa Clara 3 days, 12 hours ago

CHP : Disabled vehicle on I-280 Southbound north of Foothill Expy (Los Altos). Lane affected. Expect delays.

Moderate Accident

Santa Clara 3 days, 14 hours ago

CHP : Brush fire on I-280 Southbound at Alemany Blvd (San Francisco). Lane blocked. Expect delays.

Moderate Accident

San Francisco 3 days, 14 hours ago

CHP : Traffic Hazard on I-280 Southbound north of Bird Ave (San Jose). Center lane blocked. Expect delays.

Moderate Accident

Santa Clara 3 days, 15 hours ago

Caltrans : Roadwork on I-280 Southbound between Magdalena Ave (Los Altos) and Foothill Expy (Los Altos). Lane closed until 4 PM. From 9:15 AM Friday, October 23, 2026 to 4:15 PM Friday, October 23, 2026.

Santa Clara 3 days, 17 hours ago

Caltrans : Roadwork on I-280 Southbound at Crystal Springs Rd (San Bruno). Lane closed until 3 PM. From 9:00 AM Friday, October 23, 2026 to 3:00 PM Friday, October 23, 2026.

San Mateo 3 days, 18 hours ago

CHP : Traffic Hazard on I-280 Southbound north of Sand Hill Rd (Menlo Park). Lanes affected. Expect delays.

Moderate Accident

San Mateo 3 days, 18 hours ago

CHP : Fire on I-280 Southbound exiting at S 10TH St (San Jose). Off Ramp affected. Expect delays.

Santa Clara 3 days, 19 hours ago

CHP : Grass fire on I-280 Southbound entering at John Daly Blvd (Daly City). Right shoulder affected. Expect delays.

Moderate Accident

San Mateo 3 days, 21 hours ago

CHP : Traffic Hazard on I-280 Southbound north of El Monte Rd (Los Altos Hills). Right and center lanes affected. Expect delays.

Moderate Accident

Santa Clara 3 days, 22 hours ago

CHP : Traffic Collision on I-280 Southbound north of Foothill Expy (Los Altos). Right shoulder affected. Expect delays.

Moderate Accident

Santa Clara 4 days, 10 hours ago

CHP : Severe traffic alert and Traffic Collision with Injuries and Overturned vehicle on I-280 Southbound between Magdalena Ave (Los Altos) and Foothill Expy (Los Altos). All lanes blocked. Avoid the area.

Santa Clara 4 days, 12 hours ago

CHP : Disabled vehicle on I-280 Southbound north of El Monte Rd (Los Altos Hills). Left lane affected. Expect delays.

Moderate Accident

Santa Clara 4 days, 13 hours ago

CHP : Disabled vehicle on I-280 Southbound north of Magdalena Ave (Los Altos). 2nd lane from the left blocked. Expect delays.

Moderate Accident

Santa Clara 4 days, 13 hours ago

CHP : Disabled vehicle on I-280 Southbound north of Foothill Expy (Los Altos). 2nd lane from the left blocked. Expect delays.

Moderate Accident

Santa Clara 4 days, 14 hours ago

CHP : Traffic Collision on I-280 Southbound exiting at Magdalena Ave (Los Altos). Off Ramp blocked. Expect delays.

Santa Clara 4 days, 23 hours ago

CHP : Traffic Collision on I-280 Southbound south of S 11TH St (San Jose). Lane affected. Expect delays.

Moderate Accident

Santa Clara 5 days, 2 hours ago

CHP : Traffic Collision on I-280 Southbound north of Canada Rd (Woodside). Center Divider affected. Expect delays.

San Mateo 5 days, 5 hours ago

CHP : Traffic Collision with Injuries on I-280 Southbound at Cesar Chavez St (San Francisco). Lane blocked. Expect delays.

Moderate Accident

San Francisco 5 days, 5 hours ago

CHP : Traffic Hazard on I-280 Southbound north of Westborough Blvd (South San Francisco). Center lanes blocked. Expect delays.

Moderate Accident

San Mateo 5 days, 16 hours ago

Caltrans : Roadwork on I-280 Southbound between Magdalena Ave (Los Altos) and Foothill Expy (Los Altos). Lane closed until 4 PM. From 9:15 AM Wednesday, October 21, 2026 to 4:15 PM Wednesday, October 21, 2026.

Santa Clara 5 days, 20 hours ago

Caltrans : Roadwork on I-280 Southbound at Crystal Springs Rd (San Bruno). Lane closed until 3 PM. From 9:00 AM Wednesday, October 21, 2026 to 3:00 PM Wednesday, October 21, 2026.

San Mateo 5 days, 20 hours ago

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

San Francisco 5 days, 23 hours ago

CHP : Traffic Hazard on I-280 Southbound south of Westborough Blvd (South San Francisco). Lane affected. Expect delays.

Moderate Accident

San Mateo 6 days, 2 hours ago

CHP : Traffic Hazard on I-280 Southbound north of S 11TH St (San Jose). Off Ramp affected. Expect delays.

Santa Clara 6 days, 8 hours ago

CHP : Traffic Collision with Injuries on I-280 Southbound at Sand Hill Rd (Menlo Park). Lane affected. Expect delays.

Moderate Accident

San Mateo 6 days, 9 hours ago

CHP : Traffic Collision on I-280 Southbound south of Washington St (Daly City). Right lane and exit ramp blocked. Expect delays.

San Mateo 6 days, 12 hours ago

CHP : Severe traffic alert and Traffic Collision on I-280 Southbound south of Saratoga Ave (San Jose). Left and center lanes blocked. Expect delays.

Santa Clara 6 days, 13 hours ago

CHP : Traffic Hazard on I-280 Southbound north of N Wolfe Rd (Cupertino). Left lane blocked. Expect delays.

Moderate Accident

Santa Clara 6 days, 15 hours ago

CHP : Residual delays on I-280 Southbound south of N De Anza Blvd (Cupertino). Right shoulder blocked. Expect delays.

Moderate Accident

Santa Clara 6 days, 15 hours ago

CHP : Traffic Hazard on I-280 Southbound north of US-101 S (san Jose) (San Jose). Left lanes blocked. Expect delays.

Moderate Accident

Santa Clara 6 days, 17 hours ago

CHP : Traffic Hazard on I-280 Southbound south of I-380 E (San Bruno). 2nd lane from the left blocked. Expect delays.

Moderate Accident

San Mateo 6 days, 18 hours ago

CHP : Traffic Collision on I-280 Southbound south of CA-84 E (Woodside). Lane blocked. Expect delays.

Moderate Accident

San Mateo 6 days, 23 hours ago

CHP : Traffic Hazard on I-280 Southbound north of Alpine Rd (Menlo Park). 3rd lane from the left blocked. Expect delays.

Moderate Accident

San Mateo 1 week ago

CHP : Traffic Hazard on I-280 Southbound north of Bird Ave (San Jose). Lane affected. Expect delays.

Moderate Accident

Santa Clara 1 week ago

CHP : Traffic Hazard on I-280 Southbound north of John Daly Blvd (Daly City). Lane affected. Expect delays.

Moderate Accident

San Mateo 1 week ago

CHP : Traffic Hazard on I-280 Southbound south of I-280 S-CA-1 S Join (Daly City). Left lane affected. Expect delays.

Moderate Accident

San Mateo 1 week ago

CHP : Traffic Collision on I-280 Southbound exiting at Page Mill Rd (Los Altos Hills). Off Ramp affected. Expect delays.

Santa Clara 1 week ago