CA · Highway

US-101 S Accidents & Crashes

US-101 S has recorded 3,598 traffic crashes in California since 2024, with no fatalities on record. In the last 24 hours, 11 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. 2, 2026.

Breakdown by type: 1,110 accident, 303 construction.

1,413

Total Crashes

Filtered results

0

Fatalities

Fatal injury reports

3

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 1,413 results

1110 accident 303 construction

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

Moderate Accident

Santa Clara 8 minutes ago Live

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

Moderate Accident

San Francisco 8 minutes ago Live

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

Moderate Accident

San Francisco 23 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 1 hour, 38 minutes ago

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

Sonoma 1 hour, 53 minutes ago

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

Moderate Accident

Sonoma 3 hours, 8 minutes ago

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

Santa Clara 7 hours, 38 minutes ago

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

Moderate Accident

Santa Clara 7 hours, 53 minutes ago

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

Marin 8 hours, 38 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 14 hours, 23 minutes ago

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

Moderate Accident

Marin 22 hours, 23 minutes 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, 2 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, 3 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, 5 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, 6 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, 7 hours ago

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

Moderate Accident

Santa Clara 1 day, 14 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 1 day, 15 hours ago

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

Moderate Accident

San Francisco 1 day, 17 hours ago

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

Moderate Accident

San Francisco 1 day, 17 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 1 day, 19 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 1 day, 19 hours ago

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

Moderate Accident

Santa Clara 1 day, 19 hours ago

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

Moderate Accident

Santa Clara 1 day, 20 hours ago

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

Moderate Accident

Marin 1 day, 20 hours ago

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

Moderate Accident

San Mateo 1 day, 20 hours ago

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

Sonoma 1 day, 22 hours ago

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

Sonoma 1 day, 23 hours ago

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

Moderate Accident

Sonoma 2 days 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, 1 hour ago

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

Moderate Accident

San Mateo 2 days, 1 hour 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, 3 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, 3 hours ago

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

Moderate Accident

Sonoma 2 days, 3 hours ago

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

Moderate Accident

Santa Clara 2 days, 4 hours ago

CHP : Traffic Hazard on US-101 Southbound at Rowland Blvd (Novato). Right shoulder affected. Expect delays.

Moderate Accident

Marin 2 days, 4 hours ago

CHP : Traffic Hazard on US-101 Southbound north of N Shoreline Blvd (Mountain View). Center lane blocked. Expect delays.

Moderate Accident

Santa Clara 2 days, 4 hours ago

CHP : Traffic Hazard on US-101 Southbound at Todd Rd (Santa Rosa). Right lane affected. Expect delays.

Moderate Accident

Sonoma 2 days, 6 hours ago

CHP : Traffic Hazard on US-101 Southbound at Ellis St (Mountain View). Right lanes affected. Expect delays.

Moderate Accident

Santa Clara 2 days, 6 hours ago

CHP : Disabled vehicle on US-101 Southbound at Lucas Valley Rd (San Rafael). Right shoulder affected. Expect delays.

Moderate Accident

Marin 2 days, 7 hours ago

CHP : Traffic Hazard on US-101 Southbound at River Rd (Unincorporated). Lane affected. Expect delays.

Moderate Accident

Sonoma 2 days, 7 hours ago

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

Moderate Accident

Santa Clara 2 days, 7 hours ago

CHP : Traffic Hazard on US-101 Southbound north of CA-92 E (San Mateo). Right lane affected. Expect delays.

Moderate Accident

San Mateo 2 days, 7 hours ago

CHP : Traffic Collision on US-101 Southbound south of Marsh Rd (Menlo Park). Off Ramp affected. Expect delays.

San Mateo 2 days, 8 hours ago

CHP : Traffic Hazard on US-101 Southbound north of Lakeville St (Petaluma). Lane blocked. Expect delays.

Moderate Accident

Sonoma 2 days, 8 hours ago

CHP : Traffic Hazard on US-101 Southbound north of Lucas Valley Rd (San Rafael). Center lanes affected. Expect delays.

Moderate Accident

Marin 2 days, 9 hours ago

CHP : Traffic Hazard on US-101 Southbound south of Gravenstein Hwy (Cotati). Lanes affected. Expect delays.

Sonoma 2 days, 9 hours ago

CHP : Disabled vehicle on US-101 Southbound east of CA-92 W (San Mateo). Lane affected. Expect delays.

Moderate Accident

San Mateo 2 days, 10 hours ago

CHP : Traffic Collision on US-101 Southbound at Grand Ave (South San Francisco). Lane blocked. Expect delays.

Moderate Accident

San Mateo 2 days, 11 hours ago

Caltrans : Bridge work on US-101 Southbound between Wolfback Rdg (Sausalito) and Golden Gate Bridge - Toll Plaza (San Francisco). Lanes closed until 7 AM. From 9:00 PM Friday, October 30, 2026 to 7:00 AM Saturday, October 31, 2026.

Marin 2 days, 12 hours ago