CA · Highway

I-280 S Accidents & Crashes

I-280 S has recorded 1,255 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. 30, 2026.

Breakdown by type: 1,091 accident, 121 construction.

1,212

Total Crashes

Filtered results

0

Fatalities

Fatal injury reports

5

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 1,212 results

1091 accident 121 construction

Caltrans : Roadwork on I-280 Southbound between Geneva Ave (San Francisco) and John Daly Blvd (Daly City). Various lanes closed until 6 AM. From 8:00 PM Thursday, October 29, 2026 to 6:00 AM Friday, October 30, 2026.

San Francisco 2 hours, 21 minutes ago

Caltrans : Roadwork on I-280 Southbound between SouthWest Expy (San Jose) and Bird Ave (San Jose). Various lanes closed until 6 AM. From 9:00 PM Thursday, October 29, 2026 to 6:00 AM Friday, October 30, 2026.

Santa Clara 2 hours, 21 minutes ago

Caltrans : Roadwork on I-280 Southbound exiting at Bird Ave (San Jose). Off Ramp closed until 6 AM. From 8:00 PM Thursday, October 29, 2026 to 6:00 AM Friday, October 30, 2026.

Santa Clara 2 hours, 21 minutes ago

CHP : Traffic Hazard on I-280 Southbound at Alpine Rd (Menlo Park). Lane affected. Expect delays.

Moderate Accident

San Mateo 4 hours, 6 minutes ago

CHP : Traffic Hazard on I-280 Southbound at Alemany Blvd (San Francisco). Off Ramp affected. Expect delays.

San Francisco 6 hours, 51 minutes ago

CHP : Traffic Collision on I-280 Southbound south of CA-82 (San Jose). Center lane blocked. Expect delays.

Moderate Accident

Santa Clara 1 day, 9 hours ago

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

Moderate Accident

Santa Clara 1 day, 16 hours ago

CHP : Vehicle fire on I-280 Southbound north of Edgewood Rd (Unincorporated). Right shoulder affected. Expect delays.

Moderate Accident

San Mateo 1 day, 16 hours ago

CHP : Traffic Hazard on I-280 Southbound south of Guadalupe Pky (San Jose). Right lane affected. Expect delays.

Moderate Accident

Santa Clara 1 day, 22 hours ago

CHP : Disabled vehicle on I-280 Southbound north of Bird Ave (San Jose). Right and center lanes blocked. Expect delays.

Moderate Accident

Santa Clara 2 days, 10 hours ago

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 3 days, 9 hours ago

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

Moderate Accident

San Mateo 3 days, 15 hours 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 3 days, 18 hours 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 3 days, 18 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 Monday, October 26, 2026 to 4:15 PM Monday, October 26, 2026.

Santa Clara 3 days, 18 hours ago

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

Moderate Accident

San Mateo 3 days, 22 hours ago

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

Moderate Accident

San Mateo 4 days, 8 hours ago

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

Moderate Accident

San Francisco 4 days, 10 hours ago

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

Moderate Accident

Santa Clara 4 days, 15 hours ago

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

San Francisco 5 days, 16 hours ago

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

Moderate Accident

Santa Clara 6 days, 8 hours ago

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

Moderate Accident

San Francisco 6 days, 10 hours ago

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

Moderate Accident

Santa Clara 6 days, 10 hours ago

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

Moderate Accident

Santa Clara 6 days, 11 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 6 days, 13 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 6 days, 14 hours ago

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

Moderate Accident

San Mateo 6 days, 14 hours ago

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

Santa Clara 6 days, 15 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 6 days, 17 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 6 days, 18 hours ago

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

Moderate Accident

Santa Clara 1 week 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 1 week 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 1 week 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 1 week 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 1 week ago

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

Santa Clara 1 week ago

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

Moderate Accident

Santa Clara 1 week ago

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

Moderate Accident

San Francisco 1 week, 1 day ago

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

Moderate Accident

San Mateo 1 week, 1 day 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 1 week, 1 day 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 1 week, 1 day ago

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

San Francisco 1 week, 1 day ago

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

Moderate Accident

San Mateo 1 week, 1 day ago

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

Santa Clara 1 week, 2 days ago

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

Moderate Accident

San Mateo 1 week, 2 days ago

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

San Mateo 1 week, 2 days 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 1 week, 2 days ago

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

Moderate Accident

Santa Clara 1 week, 2 days ago

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

Moderate Accident

Santa Clara 1 week, 2 days 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 1 week, 2 days ago