I-280 S · Last 48 Hours

I-280 S Accident Today

1 accident on I-280 S in the last 24 hours · 9 in 48 hours · updated Oct. 27, 2026 5:27 PM PDT

1
Last 24h
9
Last 48h
0
High Severity
31
This Week
6
Accident
3
Construction
7-Day Trend
31 crashes
↓ Fewer than last week

31 crashes in the last 7 days, down 46% vs the previous week.

12–24 hours ago
1 incident
24–48 hours ago
8 incidents
1d ago 2:00 PM
CHP : Traffic Hazard on I-280 Southbound north of Bunker Hill Dr (San Mateo). Left lane affected. Expect delays.
San Mateo
Injury
1d ago 11:15 AM
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
1d ago 11:15 AM
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
1d ago 11:15 AM
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
1d ago 6:30 AM
CHP : Traffic Hazard on I-280 Southbound north of Sneath Ln (San Bruno). Center lanes affected. Expect delays.
San Mateo
Injury
1d ago 10:30 PM
CHP : Traffic Hazard on I-280 Southbound north of Foothill Expy (Los Altos). Center Divider affected. Expect delays.
Santa Clara
1d ago 8:45 PM
CHP : Disabled vehicle on I-280 Southbound south of Alpine Rd (Menlo Park). Right shoulder affected. Expect delays.
San Mateo
Injury
1d ago 6:45 PM
CHP : Traffic Hazard on I-280 Southbound north of Monterey Blvd (San Francisco). Lane blocked. Expect delays.
San Francisco
Injury
Are accidents on I-280 S reported live?
Yes — this page refreshes throughout the day as new incidents are logged by the California Highway Patrol. Crash data typically appears within 15–30 minutes of being reported.
How many accidents happened on I-280 S in the last 7 days?
31 crashes were reported on I-280 S in the last 7 days.
What type of accident is most common on I-280 S?
Accident are the most frequently reported incident type on I-280 S based on recent data.
Where can I see all California accidents today?
A live feed of all active crashes across California is available on the California accidents today page.
Where does this crash data come from?
Crash data is sourced from the California Highway Patrol (CHP) Computer-Aided Dispatch feed and the CCRS historical crash database. Learn more about our data sources.