CA · Highway

US-101 S Accidents & Crashes

US-101 S has recorded 3,614 traffic crashes in California since 2024, with no fatalities on record. In the last 24 hours, 25 new crashes were reported. The highest crash volumes are concentrated near Santa Clara and Marin.

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 Nov. 3, 2026.

Breakdown by type: 2,575 accident, 903 construction, 1 other.

3,479

Total Crashes

Filtered results

0

Fatalities

Fatal injury reports

19

Today

Reported since midnight

Today's Accidents Today's Fatalities

Crash locations on US-101 S. Click a marker to view details.

Crash Records

US-101 S Incidents 3,479 results

2575 accident 903 construction 1 other

Caltrans : Roadwork on US-101 Southbound exiting at 3RD St (San Rafael). Off Ramp closed until 7 AM. From 12:00 AM Tuesday, November 03, 2026 to 7:00 AM Tuesday, November 03, 2026.

Marin 22 minutes ago

Caltrans : Roadwork on US-101 Southbound between Manuel t Freitas Pky (San Rafael) and Lincoln Ave (San Rafael). Lanes closed until 5 AM. From 9:00 PM Monday, November 02, 2026 to 5:00 AM Tuesday, November 03, 2026.

Marin 22 minutes ago

Caltrans : Roadwork on US-101 Southbound exiting at N San Pedro Rd (San Rafael). Off Ramp closed until 7 AM. From 12:00 AM Tuesday, November 03, 2026 to 7:00 AM Tuesday, November 03, 2026.

Marin 22 minutes ago

Caltrans : Roadwork on US-101 Southbound entering at Lincoln Ave (San Rafael). On Ramp closed until 7 AM. From 12:00 AM Tuesday, November 03, 2026 to 7:00 AM Tuesday, November 03, 2026.

Marin 22 minutes ago

CHP : Vehicle fire on US-101 Southbound north of University Ave (East Palo Alto). Lane affected. Expect delays.

Moderate Accident

San Mateo 22 minutes ago

Caltrans : Roadwork on US-101 Southbound between I-580 W (San Rafael) and Madera Blvd (Corte Madera). Lanes closed until 6 AM. From 8:00 PM Monday, November 02, 2026 to 6:00 AM Tuesday, November 03, 2026.

Marin 22 minutes ago

CHP : Traffic Hazard on US-101 Southbound at Mckee Rd (San Jose). Right shoulder affected. Expect delays.

Moderate Accident

Santa Clara 22 minutes ago

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 8:00 PM Monday, November 02, 2026 to 5:00 AM Tuesday, November 03, 2026.

Santa Clara 22 minutes ago

Caltrans : Roadwork on US-101 Southbound between I-80 W (San Francisco) and Cesar Chavez St (San Francisco). Lane closed until 6 AM. From 10:00 PM Monday, November 02, 2026 to 6:00 AM Tuesday, November 03, 2026.

San Francisco 1 hour, 37 minutes ago

Caltrans : Roadwork on US-101 Southbound between CA-92 W (San Mateo) and E Hillsdale Blvd (San Mateo). Various lanes closed until 5 AM. From 8:00 PM Monday, November 02, 2026 to 5:00 AM Tuesday, November 03, 2026.

San Mateo 1 hour, 37 minutes ago

CHP : Traffic Collision on US-101 Southbound at I-580 W (San Rafael). Lane blocked. Expect delays.

Moderate Accident

Marin 4 hours, 22 minutes ago

Caltrans : Roadwork on US-101 Southbound between S Airport Blvd (South San Francisco) and San Bruno Ave E (San Bruno). Lanes closed until 4 AM. From 9:00 PM Monday, November 02, 2026 to 4:00 AM Tuesday, November 03, 2026.

San Mateo 4 hours, 37 minutes ago

CHP : Disabled vehicle on US-101 Southbound north of Embarcadero Rd (Palo Alto). Lane blocked. Expect delays.

Moderate Accident

Santa Clara 4 hours, 37 minutes ago

Caltrans : Roadwork on US-101 Southbound exiting at Lincoln Ave (San Rafael). Off Ramp closed until midnight. From 7:00 PM Monday, November 02, 2026 to 12:00 AM Tuesday, November 03, 2026.

Marin 6 hours, 37 minutes ago

CHP : Residual delays on US-101 Southbound south of Tennant Ave (Morgan Hill). Right shoulder affected. Expect delays.

Moderate Accident

Santa Clara 7 hours, 52 minutes ago

CHP : Traffic Collision on US-101 Southbound south of Manuel t Freitas Pky (San Rafael). Right and center lanes affected. Expect delays.

Moderate Accident

Marin 8 hours, 37 minutes ago

CHP : Traffic Hazard on US-101 Southbound south of I-80 W (San Francisco). Right shoulder affected. Expect delays.

Moderate Accident

San Francisco 8 hours, 52 minutes ago

CHP : Disabled vehicle on US-101 Southbound north of San Tomas Expy (Santa Clara). Lane affected. Expect delays.

Moderate Accident

Santa Clara 8 hours, 52 minutes ago

CHP : Traffic Collision on US-101 Southbound at I-80 W (San Francisco). Left lane affected. Expect delays.

Moderate Accident

San Francisco 9 hours, 7 minutes ago

CHP : Traffic Hazard on US-101 Southbound north of I-280 N (san Jose) (San Jose). Right lane affected. Expect delays.

Moderate Accident

Santa Clara 10 hours, 22 minutes ago

CHP : Traffic Collision on US-101 Southbound entering at Airport Blvd (Santa Rosa). On Ramp blocked. Expect delays.

Sonoma 10 hours, 37 minutes ago

CHP : Traffic Collision on US-101 Southbound at Theresa Dr (Cloverdale). Lane affected. Expect delays.

Moderate Accident

Sonoma 11 hours, 52 minutes ago

CHP : Traffic Collision on US-101 Southbound entering at Embarcadero Rd (Palo Alto). On Ramp blocked. Expect delays.

Santa Clara 16 hours, 22 minutes ago

CHP : Fire on US-101 Southbound north of Bowers Ave (Santa Clara). Right shoulder affected. Expect delays.

Moderate Accident

Santa Clara 16 hours, 37 minutes ago

CHP : Traffic Hazard on US-101 Southbound entering at E Blithedale Ave (Mill Valley). On Ramp blocked. Expect delays.

Marin 17 hours, 22 minutes ago

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, November 01, 2026 to 5:00 AM Monday, November 02, 2026.

Santa Clara 23 hours, 7 minutes ago

CHP : Disabled vehicle on US-101 Southbound south of E Blithedale Ave (Mill Valley). Lane blocked. Expect delays.

Moderate Accident

Marin 1 day, 7 hours ago

CHP : Traffic Collision with Injuries and Overturned vehicle on US-101 Southbound north of Pacheco Pass Hwy (Gilroy). Lane affected. Expect delays.

Moderate Accident

Santa Clara 1 day, 11 hours ago

CHP : Traffic Collision on US-101 Southbound south of I-80 W (San Francisco). Right shoulder affected. Expect delays.

Moderate Accident

San Francisco 1 day, 12 hours ago

CHP : Traffic Collision on US-101 Southbound entering at E Poplar Ave (San Mateo). On Ramp affected. Expect delays.

San Mateo 1 day, 14 hours ago

CHP : Residual delays on US-101 Southbound south of De La Cruz Blvd (San Jose). Right shoulder affected. Expect delays.

Moderate Accident

Santa Clara 1 day, 15 hours ago

CHP : Traffic Collision on US-101 Southbound south of De La Cruz Blvd (San Jose). Right shoulder affected. Expect delays.

Moderate Accident

Santa Clara 1 day, 16 hours ago

CHP : Traffic Collision on US-101 Southbound at CA-237 E (Sunnyvale). Lane affected. Expect delays.

Moderate Accident

Santa Clara 1 day, 23 hours ago

CHP : Traffic Collision on US-101 Southbound south of Cesar Chavez St (San Francisco). Right shoulder affected. Expect delays.

Moderate Accident

San Francisco 2 days ago

CHP : Traffic Collision on US-101 Southbound north of Silver Ave (San Francisco). Lane affected. Expect delays.

Moderate Accident

San Francisco 2 days, 2 hours ago

CHP : Traffic Collision on US-101 Southbound at Cesar Chavez St (San Francisco). Lane affected. Expect delays.

Moderate Accident

San Francisco 2 days, 2 hours ago

CHP : Disabled vehicle on US-101 Southbound north of E San Martin Ave (San Martin). Lane affected. Expect delays.

Moderate Accident

Santa Clara 2 days, 4 hours ago

CHP : Disabled vehicle on US-101 Southbound north of I-80 W (San Francisco). Right shoulder affected. Expect delays.

Moderate Accident

San Francisco 2 days, 4 hours ago

CHP : Traffic Hazard on US-101 Southbound north of Bowers Ave (Santa Clara). Right lane affected. Expect delays.

Moderate Accident

Santa Clara 2 days, 4 hours ago

CHP : Traffic Collision on US-101 Southbound south of E Millbrae Ave (Millbrae). Lane affected. Expect delays.

Moderate Accident

San Mateo 2 days, 5 hours ago

CHP : Disabled vehicle on US-101 Southbound at Bernal Rd (San Jose). Lane affected. Expect delays.

Moderate Accident

Santa Clara 2 days, 5 hours ago

CHP : Traffic Collision on US-101 Southbound north of Manuel t Freitas Pky (San Rafael). Lane affected. Expect delays.

Moderate Accident

Marin 2 days, 5 hours ago

CHP : Disabled vehicle on US-101 Southbound north of Theresa Dr (Cloverdale). Lanes affected. Expect delays.

Sonoma 2 days, 7 hours ago

CHP : Debris on US-101 Southbound north of S Cloverdale Blvd (Cloverdale). Lanes affected. Expect delays.

Sonoma 2 days, 8 hours ago

CHP : Traffic Hazard on US-101 Southbound north of Todd Rd (Santa Rosa). Lane affected. Expect delays.

Moderate Accident

Sonoma 2 days, 9 hours ago

CHP : Disabled vehicle on US-101 Southbound north of Cesar Chavez St (San Francisco). Lane affected. Expect delays.

Moderate Accident

San Francisco 2 days, 9 hours ago

CHP : Traffic Hazard on US-101 Southbound north of E Millbrae Ave (Millbrae). Lanes affected. Expect delays.

Moderate Accident

San Mateo 2 days, 10 hours ago

CHP : Severe traffic alert and Traffic Collision with Injuries and Overturned vehicle on US-101 Southbound north of Todd Rd (Santa Rosa). Right lane blocked. Expect delays.

Sonoma 2 days, 11 hours ago

CHP : Disabled vehicle on US-101 Southbound north of Alemany Blvd (San Francisco). Lanes affected. Expect delays.

Moderate Accident

San Francisco 2 days, 12 hours ago

CHP : Traffic Hazard on US-101 Southbound at W Railroad Ave (Cotati). Lane affected. Expect delays.

Moderate Accident

Sonoma 2 days, 12 hours ago