CA · Highway

US-101 S Accidents & Crashes

US-101 S has recorded 2,007 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 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 27, 2026.

Breakdown by type: 1,451 accident, 555 construction, 1 other.

2,007

Total Crashes

All time records

0

Fatalities

Fatal injury reports

9

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

1451 accident 555 construction 1 other

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

San Francisco 5 hours, 7 minutes ago

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

Moderate Accident

Santa Clara 8 hours, 7 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, July 26, 2026 to 5:00 AM Monday, July 27, 2026.

Santa Clara 9 hours, 52 minutes ago

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

Moderate Accident

Santa Clara 11 hours, 7 minutes ago

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

Moderate Accident

Santa Clara 17 hours, 7 minutes ago

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

Sonoma 18 hours, 22 minutes ago

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

Moderate Accident

San Mateo 19 hours, 52 minutes 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 20 hours, 7 minutes ago

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

San Mateo 20 hours, 52 minutes ago

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

Moderate Accident

Sonoma 20 hours, 52 minutes ago

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

Moderate Accident

Sonoma 22 hours, 22 minutes ago

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

Sonoma 23 hours, 52 minutes 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 ago

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

Moderate Accident

Santa Clara 1 day, 5 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 1 day, 9 hours ago

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

San Mateo 1 day, 9 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 1 day, 9 hours ago

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

Moderate Accident

San Mateo 1 day, 10 hours ago

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

Moderate Accident

Sonoma 1 day, 16 hours ago

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

Santa Clara 1 day, 17 hours ago

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

Moderate Accident

Santa Clara 1 day, 17 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 1 day, 18 hours ago

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

Moderate Accident

San Mateo 1 day, 20 hours ago

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

San Francisco 1 day, 20 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 1 day, 21 hours ago

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

Moderate Accident

Marin 1 day, 23 hours ago

Caltrans : Roadwork on US-101 Southbound between I-380 W (South San Francisco) and Embarcadero Rd (Palo Alto). Lane closed until 3 PM. From 7:00 AM Saturday, July 25, 2026 to 3:00 PM Saturday, July 25, 2026.

San Mateo 2 days, 1 hour ago

CHP : Grass fire on US-101 Southbound exiting at Shiloh Rd (Windsor). Off Ramp closed. Expect delays.

Sonoma 2 days, 1 hour ago

CHP : Disabled vehicle on US-101 Southbound at N Lawrence Expy (Sunnyvale). Right lane blocked. Expect delays.

Moderate Accident

Santa Clara 2 days, 2 hours ago

CHP : Traffic Hazard on US-101 Southbound at CA-1 S (San Francisco). Left lane affected. Expect delays.

San Francisco 2 days, 3 hours ago

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

Moderate Accident

Sonoma 2 days, 3 hours ago

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

Moderate Accident

San Francisco 2 days, 3 hours ago

CHP : Traffic Hazard on US-101 Southbound south of Silver Ave (San Francisco). Right lanes blocked. Expect delays.

Moderate Accident

San Francisco 2 days, 5 hours ago

CHP : Disabled vehicle on US-101 Southbound north of San Antonio Ave (Mountain View). Lane blocked. Expect delays.

Moderate Accident

Santa Clara 2 days, 6 hours ago

Caltrans : Roadwork on US-101 Southbound between CA-92 E (San Mateo) and E Hillsdale Blvd (San Mateo). Various lanes closed until 10 AM. From 8:00 PM Friday, July 24, 2026 to 10:00 AM Saturday, July 25, 2026.

San Mateo 2 days, 7 hours ago

Caltrans : Roadwork on US-101 Southbound between CA-25 (Gilroy) and San Benito County Line (Gilroy). Various lanes closed until 9 AM. From 8:00 PM Friday, July 24, 2026 to 9:00 AM Saturday, July 25, 2026.

Santa Clara 2 days, 7 hours ago

CHP : Residual delays on US-101 Southbound south of Petaluma Blvd S (Petaluma). All lanes open. Expect delays.

Sonoma 2 days, 7 hours ago

Caltrans : Bridge work on US-101 Southbound between Wolfback Rdg (Sausalito) and Merchant Rd (San Francisco). Lanes closed until 7 AM. From 8:00 PM Friday, July 24, 2026 to 7:00 AM Saturday, July 25, 2026.

Marin 2 days, 7 hours ago

CHP : Fire on US-101 Southbound north of Bernal Rd (San Jose). Center Divider affected. Expect delays.

Santa Clara 2 days, 8 hours ago

CHP : Traffic Hazard on US-101 Southbound north of Donahue St (Sausalito). Center Divider affected. Expect delays.

Marin 2 days, 8 hours ago

CHP : Traffic Hazard on US-101 Southbound north of I-380 W (South San Francisco). Lanes affected. Expect delays.

Moderate Accident

San Mateo 2 days, 8 hours ago

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

Moderate Accident

Santa Clara 2 days, 9 hours ago

Caltrans : Roadwork on US-101 Southbound entering at University Ave (East Palo Alto). On Ramp closed until 8 AM. From 11:00 PM Friday, July 24, 2026 to 8:00 AM Saturday, July 25, 2026.

San Mateo 2 days, 11 hours ago

CHP : Vehicle fire on US-101 Southbound at I-580 W (San Rafael). Lanes open. Expect delays.

Marin 2 days, 11 hours ago

Caltrans : Emergency construction on US-101 Southbound at San Marin Dr (Novato). Lane closed until 6 AM. From 8:00 PM Friday, July 24, 2026 to 6:00 AM Saturday, July 25, 2026.

Marin 2 days, 12 hours ago

CHP : Traffic Hazard on US-101 Southbound south of Bay Shore Blvd (San Francisco). Lane affected. Expect delays.

Moderate Accident

San Francisco 2 days, 19 hours ago

CHP : Traffic Hazard on US-101 Southbound south of Coyote Creek Golf Dr (San Jose). 2nd lane from the left affected. Expect delays.

Moderate Accident

Santa Clara 3 days, 7 hours ago

Caltrans : Roadwork on US-101 Southbound between CA-25 (Gilroy) and San Benito County Line (Gilroy). Various lanes closed until 7 AM. From 8:00 PM Thursday, July 23, 2026 to 7:00 AM Friday, July 24, 2026.

Santa Clara 3 days, 8 hours ago

CHP : Traffic Collision with Injuries on US-101 Southbound north of San Tomas Expy (Santa Clara). Right shoulder affected. Expect delays.

Moderate Accident

Santa Clara 3 days, 12 hours ago

CHP : Traffic Collision on US-101 Southbound south of Whipple Ave (Redwood City). Lane affected. Expect delays.

Moderate Accident

San Mateo 3 days, 19 hours ago