US-101 S · Last 48 Hours

US-101 S Accident Today

22 accidents on US-101 S in the last 24 hours · 42 in 48 hours · updated Oct. 27, 2026 8:36 AM PDT

22

Last 24h

42

Last 48h

6

High Severity

134

This Week

38

Accident

4

Construction

7-Day Trend

134 crashes

→ About the same

134 crashes in the last 7 days, about the same as the previous week (142).

Last hour

1 incident

51m ago 7:45 AM

CHP : Disabled vehicle on US-101 Southbound north of Golden Gate Bridge - North Tower (San Francisco). Right lane affected. Expect delays.

Last 6 hours

3 incidents

CHP : Traffic Collision on US-101 Southbound north of CA-237 E (Sunnyvale). Left lane blocked. Expect delays.

CHP : Traffic Collision with Injuries on US-101 Southbound north of Alameda Del Prado (Novato). Lane blocked. Expect delays.

Caltrans : Roadwork on US-101 Southbound entering at Lincoln Ave (San Rafael). On Ramp closed until 7 AM. From 12:00 AM Tuesday, October 27, 2026 to 7:00 AM Tuesday, October 27, 2026.

6–12 hours ago

4 incidents

CHP : Traffic Collision with Injuries on US-101 Southbound south of E San Martin Ave (San Martin). 2nd lane from the left affected. Expect delays.

CHP : Traffic Collision on US-101 Southbound north of San Antonio Rd (Unincorporated). Right shoulder affected. Expect delays.

CHP : Traffic Hazard on US-101 Southbound north of Miller Creek Rd (Unincorporated). Right shoulder affected. Expect delays.

11h ago 8:45 PM

Caltrans : Roadwork on US-101 Southbound entering at N San Pedro Rd (San Rafael). On Ramp closed until midnight. From 7:00 PM Monday, October 26, 2026 to 12:00 AM Tuesday, October 27, 2026.

12–24 hours ago

14 incidents

12h ago 8:15 PM

Caltrans : Roadwork on US-101 Southbound exiting at Lincoln Ave (San Rafael). Off Ramp closed until midnight. From 7:00 PM Monday, October 26, 2026 to 12:00 AM Tuesday, October 27, 2026.

13h ago 7:30 PM

CHP : Traffic Collision with Injuries on US-101 Southbound north of CA-92 E (San Mateo). Left and center lanes blocked. Expect delays.

13h ago 7:15 PM

CHP : Traffic Hazard on US-101 Southbound at CA-12 W (Santa Rosa). Off Ramp affected. Expect delays.

14h ago 6:00 PM

CHP : Traffic Hazard on US-101 Southbound at CA-25 (Gilroy). Right shoulder affected. Expect delays.

16h ago 4:30 PM

CHP : Traffic Hazard on US-101 Southbound north of San Tomas Expy (Santa Clara). Left and center lanes blocked. Expect delays.

16h ago 4:00 PM

CHP : Disabled truck on US-101 Southbound north of E Blithedale Ave (Mill Valley). Right lane blocked. Expect delays.

17h ago 3:15 PM

CHP : Traffic Hazard on US-101 Southbound north of 3RD St (San Rafael). 3rd lane from the left affected. Expect delays.

17h ago 3:00 PM

CHP : Traffic Hazard on US-101 Southbound north of Ralston Ave (Belmont). Lane affected. Expect delays.

18h ago 2:00 PM

CHP : Traffic Hazard on US-101 Southbound north of Petaluma Blvd N (Petaluma). Left lane blocked. Expect delays.

18h ago 1:45 PM

CHP : Traffic Hazard on US-101 Southbound north of S Novato Blvd (Novato). 2nd lane from the left blocked. Expect delays.

19h ago 1:15 PM

CHP : Flooding on US-101 Southbound entering at Hamilton Dr (Mill Valley). On Ramp affected. Expect delays.

21h ago 11:30 AM

CHP : Traffic Hazard on US-101 Southbound exiting at S Novato Blvd (Novato). Lane blocked. Expect delays.

22h ago 10:00 AM

CHP : Traffic Hazard on US-101 Southbound south of Blossom Hill Rd (San Jose). Lane affected. Expect delays.

23h ago 9:15 AM

CHP : Traffic Collision with Injuries on US-101 Southbound north of Marsh Rd (Menlo Park). Left lanes blocked. Expect delays.

24–48 hours ago

20 incidents

CHP : Vehicle fire on US-101 Southbound south of Metcalf Rd (San Jose). Right shoulder affected. Expect delays.

CHP : Traffic Hazard on US-101 Southbound north of E Dunne Ave (Morgan Hill). Center Divider affected. Expect delays.

1d ago 11:15 PM

CHP : Disabled vehicle on US-101 Southbound north of E Poplar Ave (San Mateo). Right shoulder affected. Expect delays.

1d ago 10:30 PM

CHP : Traffic Collision with Injuries on US-101 Southbound north of E Capitol Expy (San Jose). Lane affected. Expect delays.

Caltrans : Roadwork on US-101 Southbound between CA-85 S (san Jose) (San Jose) and Metcalf Rd (San Jose). Various lanes closed until 5 AM. From 7:00 PM Sunday, October 25, 2026 to 5:00 AM Monday, October 26, 2026.

CHP : Disabled vehicle on US-101 Southbound north of E Millbrae Ave (Millbrae). Off Ramp affected. Expect delays.

CHP : Vehicle fire on US-101 Southbound north of Broadway (Burlingame). Right shoulder affected. Expect delays.

CHP : Traffic Hazard on US-101 Southbound north of E Blithedale Ave (Mill Valley). Center Divider affected. Expect delays.

CHP : Disabled vehicle on US-101 Southbound north of E Millbrae Ave (Millbrae). Right shoulder affected. Expect delays.

CHP : Traffic Hazard on US-101 Southbound north of Mckee Rd (San Jose). Lane affected. Expect delays.

CHP : Traffic Hazard on US-101 Southbound at Silver Ave (San Francisco). Off Ramp affected. Expect delays.

CHP : Traffic Hazard on US-101 Southbound south of E Blithedale Ave (Mill Valley). Center Divider affected. Expect delays.

CHP : Traffic Hazard on US-101 Southbound south of Lytton Springs Rd (Unincorporated). Right shoulder affected. Expect delays.

CHP : Traffic Hazard on US-101 Southbound north of CA-237 W (Sunnyvale). Right shoulder affected. Expect delays.

CHP : Traffic Hazard on US-101 Southbound at Cochrane Rd (Morgan Hill). Lanes affected. Expect delays.

CHP : Traffic Hazard on US-101 Southbound north of Guadalupe Pky (San Jose). Right lane affected. Expect delays.

1d ago 12:45 PM

CHP : Traffic Hazard on US-101 Southbound north of Lucky Dr (Corte Madera). Center lanes blocked. Expect delays.

1d ago 12:45 PM

CHP : Residual delays on US-101 Southbound at E San Martin Ave (San Martin). Center Divider affected. Expect delays.

1d ago 11:00 AM

CHP : Traffic Hazard on US-101 Southbound south of N San Pedro Rd (San Rafael). Lane blocked. Expect delays.

CHP : Severe traffic alert and Traffic Collision with Injuries and Overturned vehicle on US-101 Southbound north of Blossom Hill Rd (San Jose). Right and center lanes blocked. Expect delays.

Frequently Asked Questions

Are accidents on US-101 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 US-101 S in the last 7 days?

134 crashes were reported on US-101 S in the last 7 days.

What type of accident is most common on US-101 S?

Accident are the most frequently reported incident type on US-101 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.