CA · Highway

US-101 N Accidents & Crashes

US-101 N has recorded 3,627 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 San Mateo.

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 Oct. 27, 2026.

Breakdown by type: 380 accident.

380

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 N. Click a marker to view details.

Crash Records

US-101 N Incidents 380 results

380 accident

CHP : Flooding on US-101 Northbound exiting at Seminary Dr (Mill Valley). Off Ramp affected. Expect delays.

Marin 43 minutes ago

CHP : Severe traffic alert and Traffic Collision and Overturned vehicle on US-101 Northbound south of CA-92 W (San Mateo). Left and center lanes blocked. Expect delays.

San Mateo 4 hours, 43 minutes ago

CHP : Traffic Collision on US-101 Northbound entering at CA-92 W (San Mateo). On Ramp affected. Expect delays.

San Mateo 5 hours, 58 minutes ago

CHP : Flooding on US-101 Northbound ramp to CA-1 N (Sausalito). Connector ramp affected. Expect delays.

Marin 22 hours, 28 minutes ago

CHP : Traffic Hazard on US-101 Northbound exiting at Coyote Creek Golf Dr (San Jose). Off Ramp affected. Expect delays.

Santa Clara 1 day, 3 hours ago

CHP : Traffic Collision with Injuries on US-101 Northbound at Smith Ranch Rd (San Rafael). Off Ramp blocked. Expect delays.

Marin 1 day, 13 hours ago

CHP : Disabled vehicle on US-101 Northbound at Willow Rd (Menlo Park). Off Ramp blocked. Expect delays.

San Mateo 1 day, 17 hours ago

CHP : Traffic Hazard on US-101 Northbound at Tully Rd (San Jose). Off Ramp affected. Expect delays.

Santa Clara 1 day, 21 hours ago

CHP : Traffic Hazard on US-101 Northbound south of Mendocino Ave (Santa Rosa). Center lanes affected. Expect delays.

Sonoma 1 day, 23 hours ago

CHP : Traffic Collision on US-101 Northbound at Merchant Rd (San Francisco). Right lane blocked. Expect delays.

San Francisco 2 days, 15 hours ago

CHP : Traffic Hazard on US-101 Northbound south of Mark West Springs Rd (Unincorporated). Left and center lanes affected. Expect delays.

Sonoma 4 days ago

CHP : Traffic Hazard on US-101 Northbound at I-280 N-US-101 N Ramp (San Francisco). Off Ramp affected. Expect delays.

San Francisco 4 days, 5 hours ago

CHP : Traffic Collision on US-101 Northbound south of E Millbrae Ave (Millbrae). Off Ramp affected. Expect delays.

San Mateo 4 days, 14 hours ago

CHP : Traffic Collision on US-101 Northbound north of N Shoreline Blvd (Mountain View). Off Ramp blocked. Expect delays.

Santa Clara 4 days, 23 hours ago

CHP : Traffic Collision on US-101 Northbound exiting at N Fair Oaks Ave (Sunnyvale). Off Ramp affected. Expect delays.

Santa Clara 5 days, 6 hours ago

CHP : Traffic Hazard on US-101 Northbound entering at Cesar Chavez St (San Francisco). On Ramp blocked. Expect delays.

San Francisco 6 days, 6 hours ago

CHP : Traffic Collision on US-101 Northbound exiting at Alum Rock Ave (San Jose). Off Ramp affected. Expect delays.

Santa Clara 6 days, 7 hours ago

CHP : Traffic Collision on US-101 Northbound at W Sierra Ave (Cotati). Off Ramp affected. Expect delays.

Sonoma 6 days, 11 hours ago

CHP : Traffic Hazard on US-101 Northbound ramp to I-680 S (San Jose). Connector ramp affected. Expect delays.

Santa Clara 1 week ago

CHP : Traffic Hazard on US-101 Northbound at Oyster Point Blvd (South San Francisco). Off Ramp affected. Expect delays.

San Mateo 1 week ago

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

San Francisco 1 week ago

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

San Francisco 1 week ago

CHP : Traffic Hazard on US-101 Northbound exiting at Alum Rock Ave (San Jose). Off Ramp blocked. Expect delays.

Santa Clara 1 week, 1 day ago

CHP : Traffic Collision on US-101 Northbound entering at Montague Expy (Santa Clara). On Ramp blocked. Expect delays.

Santa Clara 1 week, 1 day ago

CHP : Traffic Collision on US-101 Northbound north of E Capitol Expy (San Jose). On Ramp affected. Expect delays.

Santa Clara 1 week, 1 day ago

CHP : Traffic Hazard on US-101 Northbound at Manuel t Freitas Pky (San Rafael). Off Ramp blocked. Expect delays.

Marin 1 week, 1 day ago

CHP : Traffic Collision on US-101 Northbound at Rohnert Park Expy (Rohnert Park). On Ramp affected. Expect delays.

Sonoma 1 week, 1 day ago

CHP : Disabled vehicle on US-101 Northbound at E Millbrae Ave (Millbrae). On Ramp affected. Expect delays.

San Mateo 1 week, 2 days ago

CHP : Disabled vehicle on US-101 Northbound at Masten Ave (Gilroy). Off Ramp affected. Expect delays.

Santa Clara 1 week, 2 days ago

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

San Francisco 1 week, 3 days ago

CHP : Traffic Collision on US-101 Northbound exiting at I-80 E (San Francisco). Off Ramp affected. Expect delays.

San Francisco 1 week, 3 days ago

CHP : Traffic Collision on US-101 Northbound south of Baker Ave (Santa Rosa). Right and center lanes blocked. Expect delays.

Sonoma 1 week, 4 days ago

CHP : Traffic Collision on US-101 Northbound entering at N Lawrence Expy (Sunnyvale). On Ramp affected. Expect delays.

Santa Clara 1 week, 4 days ago

CHP : Traffic Hazard on US-101 Northbound north of Golden Gate Bridge - North Tower (San Francisco). Right lane blocked. Expect delays.

San Francisco 1 week, 4 days ago

CHP : Disabled vehicle on US-101 Northbound ramp to CA-92 W (San Mateo). Connector ramp affected. Expect delays.

San Mateo 1 week, 5 days ago

CHP : Traffic Collision on US-101 Northbound south of Mendocino Ave (Santa Rosa). Left lanes blocked. Expect delays.

Sonoma 1 week, 6 days ago

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

San Francisco 1 week, 6 days ago

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

San Mateo 1 week, 6 days ago

CHP : Traffic Collision on US-101 Northbound south of Old Redwood Hwy (petaluma) (Petaluma). Center lanes blocked. Expect delays.

Sonoma 1 week, 6 days ago

CHP : Traffic Hazard on US-101 Northbound entering at Lincoln Ave (San Rafael). On Ramp affected. Expect delays.

Marin 2 weeks ago

CHP : Traffic Hazard on US-101 Northbound south of Dry Creek Rd (Healdsburg). Lanes affected. Expect delays.

Sonoma 2 weeks ago

CHP : Traffic Hazard on US-101 Northbound south of Merchant Rd (San Francisco). Left lane blocked. Expect delays.

San Francisco 2 weeks ago

CHP : Fog on US-101 Northbound and Southbound at Golden Gate Bridge (San Francisco). Lanes affected. Traffic advisory in effect.

San Francisco 2 weeks, 3 days ago

CHP : Flooding on US-101 Northbound ramp to CA-1 N (Sausalito). Connector ramp affected. Expect delays.

Marin 2 weeks, 3 days ago

CHP : Vehicle fire on US-101 Northbound ramp to I-880 N (San Jose). All lanes closed. Avoid the area.

Santa Clara 2 weeks, 3 days ago

CHP : Severe traffic alert and Traffic Collision with Injuries on US-101 Northbound south of I-580 E (San Rafael). Right lanes blocked. Expect delays.

Marin 2 weeks, 3 days ago

CHP : Disabled vehicle on US-101 Northbound north of CA-1 S (San Francisco). Right lanes blocked. Expect delays.

San Francisco 2 weeks, 4 days ago

CHP : Fog on US-101 Northbound and Southbound at Golden Gate Bridge (San Francisco). Lanes affected. Traffic advisory in effect.

San Francisco 2 weeks, 4 days ago

CHP : Fog on US-101 Northbound and Southbound at Golden Gate Bridge (San Francisco). Lanes affected. Traffic advisory in effect.

San Francisco 2 weeks, 5 days ago

CHP : Vehicle fire on US-101 Northbound exiting at Ralston Ave (Belmont). Off Ramp blocked. Expect delays.

San Mateo 2 weeks, 5 days ago