CA · Highway

US-101 S Accidents & Crashes

US-101 S has recorded 2,031 traffic crashes in California since 2024, with no fatalities on record. In the last 24 hours, 24 new crashes were reported. The highest crash volumes are concentrated near Santa Clara and Sonoma.

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 July 28, 2026.

Breakdown by type: 1,175 accident, 439 construction, 1 other.

1,615

Total Crashes

Filtered results

0

Fatalities

Fatal injury reports

21

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 1,615 results

1175 accident 439 construction 1 other

CHP : Traffic Hazard on US-101 Southbound north of Rohnert Park Expy W (Rohnert Park). Lane affected. Expect delays.

Moderate Accident

Sonoma 17 minutes ago

CHP : Traffic Hazard on US-101 Southbound north of Wolfback Rdg (Sausalito). Left lane affected. Expect delays.

Moderate Accident

Marin 32 minutes ago

CHP : Residual delays on US-101 Southbound north of Dry Creek Rd (Healdsburg). Right shoulder affected. Expect delays.

Moderate Accident

Sonoma 32 minutes ago

CHP : Traffic Collision on US-101 Southbound entering at CA-92 E (San Mateo). On Ramp blocked. Expect delays.

San Mateo 1 hour, 17 minutes ago

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

Moderate Accident

San Mateo 2 hours, 32 minutes ago

CHP : Traffic Collision on US-101 Southbound north of Madera Blvd (Corte Madera). Left and center lanes blocked. Expect delays.

Moderate Accident

Marin 2 hours, 47 minutes ago

CHP : Traffic Hazard on US-101 Southbound north of E 3RD Ave (San Mateo). Right lanes blocked. Expect delays.

Moderate Accident

San Mateo 4 hours, 17 minutes ago

CHP : Disabled vehicle on US-101 Southbound north of 3RD St (San Rafael). Lane affected. Expect delays.

Moderate Accident

Marin 4 hours, 32 minutes ago

Caltrans : Emergency construction on US-101 Southbound at San Marin Dr (Novato). Lane closed until 5 AM. From 8:00 PM Monday, July 27, 2026 to 5:00 AM Tuesday, July 28, 2026.

Marin 6 hours, 17 minutes ago

CHP : Traffic Hazard on US-101 Southbound north of Sir Francis Drake Blvd (Larkspur). Lane affected. Expect delays.

Moderate Accident

Marin 6 hours, 32 minutes ago

Caltrans : Roadwork on US-101 Southbound between Ignacio Blvd (Novato) and Miller Creek Rd (Unincorporated). Right lane and shoulder closed until 5 AM. From 9:00 PM Monday, July 27, 2026 to 5:00 AM Tuesday, July 28, 2026.

Marin 8 hours, 2 minutes ago

Caltrans : Bridge work on US-101 Southbound between Wolfback Rdg (Sausalito) and Merchant Rd (San Francisco). Lanes closed until 5 AM. From 8:00 PM Monday, July 27, 2026 to 5:00 AM Tuesday, July 28, 2026.

Marin 8 hours, 2 minutes ago

Caltrans : Roadwork on US-101 Southbound between CA-92 E (San Mateo) and E Hillsdale Blvd (San Mateo). Various lanes closed until 5 AM. From 8:00 PM Monday, July 27, 2026 to 5:00 AM Tuesday, July 28, 2026.

San Mateo 8 hours, 17 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, July 27, 2026 to 6:00 AM Tuesday, July 28, 2026.

San Francisco 8 hours, 17 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, July 27, 2026 to 5:00 AM Tuesday, July 28, 2026.

Santa Clara 13 hours, 17 minutes ago

CHP : Grass fire on US-101 Southbound north of Tully Rd (San Jose). Right shoulder affected. Expect delays.

Moderate Accident

Santa Clara 14 hours, 2 minutes ago

CHP : Grass fire on US-101 Southbound south of Blossom Hill Rd (San Jose). Right lane blocked. Expect delays.

Moderate Accident

Santa Clara 14 hours, 17 minutes ago

CHP : Grass fire on US-101 Southbound north of Bernal Rd (San Jose). Right shoulder affected. Expect delays.

Moderate Accident

Santa Clara 14 hours, 17 minutes ago

CHP : Traffic Hazard on US-101 Southbound north of I-380 W (South San Francisco). 4th lane from the left blocked. Expect delays.

Moderate Accident

San Mateo 15 hours, 2 minutes ago

CHP : Traffic Hazard on US-101 Southbound north of Cesar Chavez St (San Francisco). Right lane blocked. Expect delays.

Moderate Accident

San Francisco 15 hours, 17 minutes ago

CHP : Traffic Hazard on US-101 Southbound north of Broadway (Burlingame). Lane affected. Expect delays.

Moderate Accident

San Mateo 17 hours, 32 minutes ago

CHP : Severe traffic alert and Traffic Collision with Injuries on US-101 Southbound north of Broadway (Burlingame). Left and center lanes blocked. Expect delays.

San Mateo 18 hours, 32 minutes ago

CHP : Traffic Hazard on US-101 Southbound north of I-280 S (san Francisco) (San Francisco). Lanes affected. Expect delays.

Moderate Accident

San Francisco 18 hours, 47 minutes ago

CHP : Disabled vehicle on US-101 Southbound north of Broadway (Burlingame). 2nd lane from the left blocked. Expect delays.

Moderate Accident

San Mateo 18 hours, 47 minutes ago

CHP : Traffic Hazard on US-101 Southbound at Howard St (San Francisco). Lane affected. Expect delays.

San Francisco 1 day, 1 hour ago

CHP : Grass fire on US-101 Southbound at Story Rd (San Jose). Right shoulder affected. Expect delays.

Moderate Accident

Santa Clara 1 day, 4 hours 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, July 26, 2026 to 5:00 AM Monday, July 27, 2026.

Santa Clara 1 day, 6 hours ago

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

Moderate Accident

Santa Clara 1 day, 7 hours ago

CHP : Brush fire on US-101 Southbound at Story Rd (San Jose). Left shoulder affected. Expect delays.

Moderate Accident

Santa Clara 1 day, 13 hours ago

CHP : Traffic Collision on US-101 Southbound entering at 7TH St (Santa Rosa). On Ramp blocked. Expect delays.

Sonoma 1 day, 14 hours ago

CHP : Traffic Hazard on US-101 Southbound at University Ave (East Palo Alto). Lane blocked. Expect delays.

Moderate Accident

San Mateo 1 day, 16 hours ago

CHP : Traffic Collision with Injuries on US-101 Southbound at Coyote Creek Golf Dr (San Jose). Right shoulder affected. Expect delays.

Moderate Accident

Santa Clara 1 day, 16 hours ago

CHP : Traffic Collision on US-101 Southbound south of Gravenstein Hwy (Cotati). Lane blocked. Expect delays.

Moderate Accident

Sonoma 1 day, 17 hours ago

CHP : Traffic Collision on US-101 Southbound exiting at Woodside Rd (Redwood City). Off Ramp blocked. Expect delays.

San Mateo 1 day, 17 hours ago

CHP : Traffic Hazard on US-101 Southbound north of Petaluma Blvd N (Petaluma). Lane affected. Expect delays.

Moderate Accident

Sonoma 1 day, 18 hours ago

CHP : Traffic Hazard on US-101 Southbound north of Asti Post Office Rd (Cloverdale). Lanes affected. Expect delays.

Sonoma 1 day, 20 hours ago

CHP : Traffic Collision on US-101 Southbound north of Golden Gate Bridge - South Tower (San Francisco). Right lane blocked. Expect delays.

San Francisco 1 day, 20 hours ago

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

Moderate Accident

Santa Clara 2 days, 2 hours ago

CHP : Traffic Collision with Injuries on US-101 Southbound north of Whipple Ave (Redwood City). Right shoulder affected. Expect delays.

Moderate Accident

San Mateo 2 days, 5 hours ago

CHP : Fire on US-101 Southbound at Marsh Rd (Menlo Park). Off Ramp affected. Expect delays.

San Mateo 2 days, 5 hours ago

CHP : Brush fire on US-101 Southbound north of Cesar Chavez St (San Francisco). Right shoulder affected. Expect delays.

Moderate Accident

San Francisco 2 days, 6 hours ago

CHP : Fire on US-101 Southbound north of Woodside Rd (Redwood City). Lane affected. Expect delays.

Moderate Accident

San Mateo 2 days, 7 hours ago

CHP : Disabled vehicle on US-101 Southbound north of Windsor River Rd (Windsor). Lane affected. Expect delays.

Moderate Accident

Sonoma 2 days, 13 hours ago

CHP : Residual delays on US-101 Southbound south of San Benito County Line (Gilroy). All lanes open. Expect delays.

Santa Clara 2 days, 13 hours ago

CHP : Disabled vehicle on US-101 Southbound north of Airport Pky (San Jose). Right shoulder affected. Expect delays.

Moderate Accident

Santa Clara 2 days, 14 hours ago

CHP : Vehicle fire on US-101 Southbound north of N San Pedro Rd (San Rafael). Right shoulder affected. Expect delays.

Moderate Accident

Marin 2 days, 14 hours ago

CHP : Traffic Collision on US-101 Southbound north of Willow Rd (Menlo Park). Lane blocked. Expect delays.

Moderate Accident

San Mateo 2 days, 16 hours ago

CHP : Traffic Collision on US-101 Southbound at Merchant Rd (San Francisco). Lanes blocked. Expect delays.

San Francisco 2 days, 16 hours ago

CHP : Traffic Collision with Injuries on US-101 Southbound north of Tennant Ave (Morgan Hill). Right shoulder affected. Expect delays.

Moderate Accident

Santa Clara 2 days, 17 hours ago

CHP : Traffic Collision on US-101 Southbound north of San Marin Dr (Novato). Right shoulder affected. Expect delays.

Moderate Accident

Marin 2 days, 19 hours ago