CA · Highway

US-101 S Accidents & Crashes

US-101 S has recorded 2,018 traffic crashes in California since 2024, with no fatalities on record. In the last 24 hours, 15 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: 139 accident.

139

Total Crashes

Filtered results

0

Fatalities

Fatal injury reports

0

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 139 results

139 accident

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 7 hours, 58 minutes ago

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

Sonoma 1 day, 4 hours ago

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

San Mateo 1 day, 6 hours ago

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

Sonoma 1 day, 9 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, 10 hours ago

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

San Mateo 1 day, 19 hours ago

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

Sonoma 2 days, 10 hours ago

CHP : Traffic Hazard on US-101 Southbound north of Petaluma Blvd S (Petaluma). Right and center lanes blocked. Expect delays.

Sonoma 6 days, 8 hours ago

CHP : Traffic Hazard on US-101 Southbound entering at Gravenstein Hwy (Cotati). On Ramp affected. Expect delays.

Sonoma 6 days, 9 hours ago

CHP : Pothole on US-101 Southbound exiting at Cesar Chavez St (San Francisco). Off Ramp affected. Expect delays.

San Francisco 6 days, 13 hours ago

CHP : Traffic Hazard on US-101 Southbound at Gravenstein Hwy (Cotati). Off Ramp affected. Expect delays.

Sonoma 1 week ago

CHP : Traffic Collision with Injuries on US-101 Southbound at Marin - San Francisco County Line (San Francisco). Lane blocked. Expect delays.

San Francisco 1 week, 2 days ago

CHP : Severe traffic alert on US-101 Southbound at Rowland Blvd (Novato). Lane affected. Expect delays.

Marin 1 week, 2 days ago

CHP : Traffic Hazard on US-101 Southbound north of San Benito County Line (Gilroy). Lanes affected. Expect delays.

Santa Clara 1 week, 2 days ago

CHP : Disabled vehicle on US-101 Southbound exiting at Lakeville St (Petaluma). Off Ramp affected. Expect delays.

Sonoma 1 week, 3 days ago

CHP : Traffic Hazard on US-101 Southbound north of San Antonio Rd (Unincorporated). Right and center lanes affected. Expect delays.

Marin 1 week, 3 days ago

CHP : Severe traffic alert on US-101 Southbound north of San Bruno Ave E (San Bruno). Lanes blocked. Expect delays.

San Mateo 1 week, 3 days ago

CHP : Severe traffic alert and Traffic Collision on US-101 Southbound north of E Poplar Ave (San Mateo). Left lanes blocked. Expect delays.

San Mateo 1 week, 4 days ago

CHP : Traffic Hazard on US-101 Southbound at Petaluma Blvd S (Petaluma). Off Ramp affected. Expect delays.

Sonoma 1 week, 5 days ago

CHP : Traffic Collision on US-101 Southbound exiting at Rohnert Park Expy W (Rohnert Park). Off Ramp affected. Expect delays.

Sonoma 1 week, 6 days ago

CHP : Traffic Hazard on US-101 Southbound exiting at Canyon Rd (Geyserville). Off Ramp affected. Expect delays.

Sonoma 1 week, 6 days ago

CHP : Disabled vehicle on US-101 Southbound at CA-1 N (Sausalito). Off Ramp affected. Expect delays.

Marin 2 weeks, 1 day ago

CHP : Traffic Collision on US-101 Southbound at I-380 W (South San Francisco). On Ramp affected. Expect delays.

San Mateo 2 weeks, 1 day ago

CHP : Grass fire on US-101 Southbound entering at E Capitol Expy (San Jose). On Ramp affected. Expect delays.

Santa Clara 2 weeks, 1 day ago

CHP : Fire on US-101 Southbound exiting at Cesar Chavez St (San Francisco). On Ramp affected. Expect delays.

San Francisco 2 weeks, 1 day ago

CHP : Fire on US-101 Southbound at Whipple Ave (Redwood City). Off Ramp affected. Expect delays.

San Mateo 2 weeks, 1 day ago

CHP : Disabled vehicle on US-101 Southbound south of Golden Gate Bridge - Midspan (San Francisco). Lane blocked. Expect delays.

San Francisco 2 weeks, 2 days ago

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

Sonoma 2 weeks, 4 days ago

CHP : Traffic Collision with Injuries and Overturned vehicle on US-101 Southbound east of River Rd (Unincorporated). Lane blocked. Expect delays.

Sonoma 2 weeks, 5 days ago

CHP : Disabled vehicle on US-101 Southbound exiting at Tennant Ave (Morgan Hill). Off Ramp blocked. Expect delays.

Santa Clara 2 weeks, 5 days ago

CHP : Traffic Hazard on US-101 Southbound north of Golden Gate Bridge - Midspan (San Francisco). Center lane affected. Expect delays.

San Francisco 3 weeks ago

CHP : Traffic Hazard on US-101 Southbound at Golden Gate Bridge - Midspan (San Francisco). Lane affected. Expect delays.

San Francisco 3 weeks ago

CHP : Traffic Hazard on US-101 Southbound south of Wolfback Rdg (Sausalito). Off Ramp closed. Expect delays.

Marin 3 weeks, 2 days ago

CHP : Traffic Collision with Injuries on US-101 Southbound north of Marin - San Francisco County Line (San Francisco). Lane affected. Expect delays.

San Francisco 3 weeks, 2 days ago

CHP : Traffic Hazard on US-101 Southbound ramp to CA-1 N (Sausalito). Connector ramp affected. Expect delays.

Marin 3 weeks, 2 days ago

CHP : Traffic Collision on US-101 Southbound exiting at Bay Shore Blvd (San Francisco). Off Ramp blocked. Expect delays.

San Francisco 3 weeks, 2 days ago

CHP : Traffic Collision with Injuries on US-101 Southbound exiting at Masten Ave (Gilroy). Off Ramp affected. Expect delays.

Santa Clara 3 weeks, 3 days ago

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

San Mateo 3 weeks, 3 days ago

CHP : Traffic Hazard on US-101 Southbound at Sir Francis Drake Blvd (Larkspur). Off Ramp affected. Expect delays.

Marin 3 weeks, 3 days ago

CHP : Severe traffic alert and Traffic Collision with Injuries on US-101 Southbound north of E Millbrae Ave (Millbrae). Right and center lanes blocked. Expect delays.

San Mateo 3 weeks, 4 days ago

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

Sonoma 3 weeks, 4 days ago

CHP : Traffic Hazard on US-101 Southbound north of Airport Blvd (Santa Rosa). Left and center lanes affected. Expect delays.

Sonoma 3 weeks, 4 days ago

CHP : Traffic Hazard on US-101 Southbound north of S Cloverdale Blvd (Cloverdale). Center lanes affected. Expect delays.

Sonoma 3 weeks, 4 days ago

CHP : Traffic Hazard on US-101 Southbound entering at Wilfred Ave (Rohnert Park). Center lanes blocked. Expect delays.

Sonoma 3 weeks, 5 days ago

CHP : Disabled vehicle on US-101 Southbound at Gravenstein Hwy (Cotati). On Ramp affected. Expect delays.

Sonoma 4 weeks, 1 day ago

CHP : Disabled vehicle on US-101 Southbound south of I-80 W (San Francisco). Off Ramp affected. Expect delays.

San Francisco 4 weeks, 1 day ago

CHP : Traffic Hazard on US-101 Southbound at I-380 W (South San Francisco). Off Ramp affected. Expect delays.

San Mateo 1 month ago

CHP : Traffic Hazard on US-101 Southbound ramp to I-380 W (South San Francisco). Connector ramp blocked. Expect delays.

San Mateo 1 month ago

CHP : Traffic Collision with Injuries on US-101 Southbound entering at Bay Shore Blvd (San Francisco). On Ramp blocked. Expect delays.

San Francisco 1 month ago

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

San Francisco 1 month ago