I-280 · Last 48 Hours

I-280 Accident Today

11 accidents on I-280 in the last 24 hours · 21 in 48 hours · updated May 21, 2026 10:13 PM PDT

11

Last 24h

21

Last 48h

3

High Severity

78

This Week

18

Accident

3

Construction

7-Day Trend

78 crashes

↓ Fewer than last week

78 crashes in the last 7 days, down 36% vs the previous week.

Last 6 hours

7 incidents

CHP : Traffic Hazard on I-280 Northbound south of CA-84 E (Woodside). 2nd lane from the left affected. Expect delays.

CHP : Residual delays on I-280 Northbound north of Hickey Blvd (Daly City). Center Divider affected. Expect delays.

CHP : Traffic Collision on I-280 Northbound south of Alpine Rd (Menlo Park). Lane affected. Expect delays.

CHP : Traffic Collision on I-280 Northbound south of Avalon Dr (South San Francisco). Lane blocked. Expect delays.

Caltrans : Roadwork on I-280 Southbound entering at SouthWest Expy (San Jose). On Ramp closed until 8 PM. From 5:00 PM Thursday, May 21, 2026 to 8:00 PM Thursday, May 21, 2026.

CHP : Traffic Hazard on I-280 Northbound at Mclaughlin Ave (San Jose). Lane affected. Expect delays.

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

6–12 hours ago

3 incidents

CHP : Traffic Collision on I-280 Southbound south of CA-85 N (Sunnyvale). Lane affected. Expect delays.

CHP : Traffic Hazard on I-280 Northbound south of S Winchester Blvd (San Jose). Left lane blocked. Expect delays.

11h ago 10:45 AM

Caltrans : Roadwork on I-280 Southbound exiting at Mclaughlin Ave (San Jose). Off Ramp closed until 2-30 PM. From 9:00 AM Thursday, May 21, 2026 to 2:30 PM Thursday, May 21, 2026.

12–24 hours ago

1 incident

14h ago 7:15 AM

CHP : Traffic Hazard on I-280 Southbound north of CA-84 W (Woodside). 2nd lane from the left affected. Expect delays.

24–48 hours ago

10 incidents

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

CHP : Disabled vehicle on I-280 Southbound south of 25TH St (San Francisco). Lane blocked. Expect delays.

CHP : Traffic Hazard on I-280 Northbound south of CA-92 W (San Mateo). Lanes blocked. Expect delays.

1d ago 10:00 AM

CHP : Traffic Hazard on I-280 Southbound north of Farm Hill Blvd (Woodside). Left lanes affected. Expect delays.

Caltrans : Roadwork on I-280 Northbound entering at Mclaughlin Ave (San Jose). On Ramp closed until 3-30 PM. From 8:00 AM Wednesday, May 20, 2026 to 3:30 PM Wednesday, May 20, 2026.

CHP : Severe traffic alert and Traffic Collision with Injuries and Overturned vehicle on I-280 Northbound south of Page Mill Rd (Los Altos Hills). Right lanes blocked. Expect delays.

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

CHP : Traffic Collision on I-280 Northbound south of Foothill Expy (Los Altos). Right lane and exit ramp blocked. Expect delays.

CHP : Vehicle fire on I-280 Southbound south of CA-92 E (San Mateo). Right shoulder affected. Expect delays.

CHP : Traffic Collision with Injuries and Overturned tractor trailer and Severe traffic alert on I-280 Northbound south of Page Mill Rd (Los Altos Hills). Right lanes blocked. Expect delays.

Frequently Asked Questions

Are accidents on I-280 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 in the last 7 days?

78 crashes were reported on I-280 in the last 7 days.

What type of accident is most common on I-280?

Accident are the most frequently reported incident type on I-280 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.