US-101 S Accidents & Crashes

Caltrans : Roadwork on US-101 Southbound at Metcalf Rd (San Jose). Lane closed until 9 AM. From 5:00 AM Sunday, April 12, 2026 to 9:00 AM Sunday, April 12, 2026.

Construction

Santa Clara 1 minute ago Live

CHP : Traffic Collision on US-101 Southbound at E Hillsdale Blvd (San Mateo). Lane affected. Expect delays.

Moderate Accident

San Mateo 1 hour, 16 minutes ago

CHP : Traffic Collision with Injuries on US-101 Southbound north of Ralston Ave (Belmont). Lanes open. Expect delays.

Accident

San Mateo 2 hours, 16 minutes ago

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

Moderate Accident

Sonoma 4 hours, 16 minutes ago

CHP : Residual delays on US-101 Southbound north of Miller Creek Rd (Unincorporated). All lanes open. Expect delays.

Accident

Marin 14 hours, 16 minutes ago

CHP : Traffic Hazard on US-101 Southbound north of E Washington St (Petaluma). Lane affected. Expect delays.

Moderate Accident

Sonoma 17 hours, 1 minute ago

CHP : Traffic Hazard on US-101 Southbound north of Sister Cities Blvd (South San Francisco). Lane affected. Expect delays.

Moderate Accident

San Mateo 18 hours, 46 minutes ago

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

Moderate Accident

Santa Clara 18 hours, 46 minutes ago

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

Moderate Accident

Sonoma 20 hours, 31 minutes ago

CHP : Traffic Hazard on US-101 Southbound entering at Ralston Ave (Belmont). On Ramp blocked. Expect delays.

High Accident

San Mateo 21 hours, 16 minutes ago

CHP : Traffic Hazard on US-101 Southbound north of CA-1 N (Sausalito). Lanes blocked. Expect delays.

Moderate Accident

Marin 22 hours, 31 minutes ago

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

Moderate Accident

Marin 22 hours, 46 minutes ago

CHP : Traffic Collision with Injuries on US-101 Southbound north of Bellam Blvd (San Rafael). Lane open. Expect delays.

Accident

Marin 1 day ago

Caltrans : Roadwork on US-101 Southbound between CA-85 S (san Jose) (San Jose) and Metcalf Rd (San Jose). Various lanes closed until 7 AM. From 9:00 PM Friday, April 10, 2026 to 7:00 AM Saturday, April 11, 2026.

Construction

Santa Clara 1 day, 1 hour ago

CHP : Traffic Hazard on US-101 Southbound north of Ignacio Blvd (Novato). Left lane affected. Expect delays.

Moderate Accident

Marin 1 day, 6 hours ago

CHP : Traffic Collision on US-101 Southbound south of Lakeville St (Petaluma). Lane affected. Expect delays.

Moderate Accident

Sonoma 1 day, 10 hours ago

CHP : Traffic Collision on US-101 Southbound north of Hearn Ave (Santa Rosa). Lane affected. Expect delays.

Moderate Accident

Sonoma 1 day, 14 hours ago

CHP : Brush fire on US-101 Southbound north of Woodside Rd (Redwood City). Right shoulder affected. Expect delays.

Moderate Accident

San Mateo 1 day, 14 hours ago

CHP : Brush fire on US-101 Southbound north of Whipple Ave (Redwood City). Right shoulder affected. Expect delays.

Moderate Accident

San Mateo 1 day, 14 hours ago

CHP : Landslide on US-101 Southbound north of Conzelman Rd (Sausalito). Right and center lanes blocked. Expect delays.

Moderate Accident

Marin 1 day, 16 hours ago

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

Moderate Accident

San Francisco 1 day, 16 hours ago

CHP : Traffic Hazard on US-101 Southbound north of Canyon Rd (Geyserville). Left lane affected. Expect delays.

Moderate Accident

Sonoma 1 day, 19 hours ago

CHP : Traffic Hazard on US-101 Southbound south of Rodeo Ave (Sausalito). Right lane affected. Expect delays.

Moderate Accident

Marin 1 day, 19 hours ago

CHP : Traffic Hazard on US-101 Southbound south of College Ave (Santa Rosa). Left lane affected. Expect delays.

Moderate Accident

Sonoma 1 day, 19 hours ago

CHP : Traffic Collision on US-101 Southbound ramp to I-280 S (san Francisco) (San Francisco). Right lane blocked. Expect delays.

Moderate Accident

San Francisco 1 day, 20 hours ago

CHP : Residual delays on US-101 Southbound south of Rodeo Ave (Sausalito). All lanes open. Expect delays.

Accident

Marin 1 day, 20 hours ago

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

Moderate Accident

Sonoma 1 day, 20 hours ago

CHP : Disabled vehicle on US-101 Southbound north of Petaluma Blvd S (Petaluma). Right shoulder affected. Expect delays.

Moderate Accident

Sonoma 2 days ago

CHP : Traffic Hazard on US-101 Southbound north of Shiloh Rd (Windsor). HOV affected. Expect delays.

Moderate Accident

Sonoma 2 days 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 Thursday, April 09, 2026 to 6:00 AM Friday, April 10, 2026.

Construction

San Francisco 2 days, 1 hour ago

Caltrans : Roadwork on US-101 Southbound entering at CA-25 (Gilroy). On Ramp closed. From 6:00 PM Thursday, April 09, 2026 to 6:00 AM Friday, April 10, 2026.

Construction

Santa Clara 2 days, 1 hour ago

Caltrans : Roadwork on US-101 Southbound exiting at CA-25 (Gilroy). Off Ramp closed. From 8:00 PM Thursday, April 09, 2026 to 6:00 AM Friday, April 10, 2026.

Construction

Santa Clara 2 days, 1 hour ago

Caltrans : Roadwork on US-101 Southbound exiting at Windsor River Rd (Windsor). Off Ramp closed until 5 AM. From 9:00 PM Thursday, April 09, 2026 to 5:00 AM Friday, April 10, 2026.

Construction

Sonoma 2 days, 2 hours ago

Caltrans : Roadwork on US-101 Southbound at Old Redwood Hwy (Healdsburg). Right lane and shoulder closed until 5 AM. From 6:00 AM Thursday, April 09, 2026 to 5:00 AM Friday, April 10, 2026.

Construction

Sonoma 2 days, 2 hours ago

Caltrans : Roadwork on US-101 Southbound between CA-85 S (san Jose) (San Jose) and Metcalf Rd (San Jose). Various lanes closed. From 8:00 PM Thursday, April 09, 2026 to 5:00 AM Friday, April 10, 2026.

Construction

Santa Clara 2 days, 2 hours ago

CHP : Traffic Hazard on US-101 Southbound north of Blossom Hill Rd (San Jose). Lane affected. Expect delays.

Moderate Accident

Santa Clara 2 days, 11 hours ago

CHP : Traffic Collision on US-101 Southbound north of Baker Ave (Santa Rosa). Right shoulder affected. Expect delays.

Moderate Accident

Sonoma 2 days, 12 hours ago

CHP : Traffic Collision with Injuries on US-101 Southbound north of Guadalupe Pky (San Jose). Lanes affected. Expect delays.

Moderate Accident

Santa Clara 2 days, 13 hours ago

CHP : Traffic Hazard on US-101 Southbound exiting at Lucas Valley Rd (San Rafael). Off Ramp affected. Expect delays.

High Accident

Marin 2 days, 13 hours ago

CHP : Traffic Collision on US-101 Southbound north of Oregon Expy (Palo Alto). Lane affected. Expect delays.

Moderate Accident

Santa Clara 2 days, 14 hours ago

Caltrans : Roadwork on US-101 Southbound between Marsh Rd (Menlo Park) and Willow Rd (Menlo Park). Lane closed until 2 PM. From 8:45 AM Thursday, April 09, 2026 to 2:00 PM Thursday, April 09, 2026.

Construction

San Mateo 2 days, 19 hours ago

CHP : Traffic Collision on US-101 Southbound at Lakeville St (Petaluma). Lane affected. Expect delays.

Moderate Accident

Sonoma 2 days, 22 hours ago

Caltrans : Roadwork on US-101 Southbound between Monterey Hwy (Gilroy) and CA-25 (Gilroy). Lanes closed. Expect delays. From 7:00 PM Wednesday, April 08, 2026 to 6:00 AM Thursday, April 09, 2026.

Construction

Santa Clara 3 days, 1 hour ago

Caltrans : Roadwork on US-101 Southbound exiting at CA-25 (Gilroy). Off Ramp closed. From 8:00 PM Wednesday, April 08, 2026 to 6:00 AM Thursday, April 09, 2026.

Construction

Santa Clara 3 days, 1 hour ago

Caltrans : Roadwork on US-101 Southbound entering at CA-25 (Gilroy). On Ramp closed. From 6:00 PM Wednesday, April 08, 2026 to 6:00 AM Thursday, April 09, 2026.

Construction

Santa Clara 3 days, 1 hour 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 Wednesday, April 08, 2026 to 6:00 AM Thursday, April 09, 2026.

Construction

San Francisco 3 days, 1 hour ago

Caltrans : Roadwork on US-101 Southbound at Old Redwood Hwy (Healdsburg). Right lane and shoulder closed until 5 AM. From 6:00 AM Wednesday, April 08, 2026 to 5:00 AM Thursday, April 09, 2026.

Construction

Sonoma 3 days, 2 hours ago

Caltrans : Roadwork on US-101 Southbound between W Railroad Ave (Cotati) and Petaluma Blvd N (Petaluma). Right lane and shoulder closed until 5 AM. From 9:00 PM Wednesday, April 08, 2026 to 5:00 AM Thursday, April 09, 2026.

Construction

Sonoma 3 days, 2 hours ago

Caltrans : Roadwork on US-101 Southbound exiting at Windsor River Rd (Windsor). Off Ramp closed until 5 AM. From 9:00 PM Wednesday, April 08, 2026 to 5:00 AM Thursday, April 09, 2026.

Construction

Sonoma 3 days, 2 hours ago

Caltrans : Roadwork on US-101 Southbound between CA-85 S (san Jose) (San Jose) and Metcalf Rd (San Jose). Various lanes closed. From 8:00 PM Wednesday, April 08, 2026 to 5:00 AM Thursday, April 09, 2026.

Construction

Santa Clara 3 days, 2 hours ago