Construction Resolved

Caltrans : Roadwork on US-101 Northbound entering at E Hillsdale Blvd (San Mateo). On Ramp closed. Expect delays. From 8:00 PM Friday, September 18, 2026 to 12:00 PM Saturday, September 19, 2026.

A construction was reported on US-101 N near San Mateo on September 19, 2026 at 3:01 AM.

Road

US-101 N

Area

San Mateo

Address

Loading…

Started

Sep 18, 8:01 PM

Last Updated

1 month, 1 week ago

Sep 19, 9:15 AM

Resolved

Sep 19, 3:15 PM

Coordinates

37.5448, -122.2874

Update History

10 observations

Caltrans : Roadwork on US-101 Northbound entering at E Hillsdale Blvd (San Mateo). On Ramp closed. Expect delays. From 8:00 PM Friday, September 18, 2026 to 12:00 PM Saturday, September 19, 2026. Sep 19, 9:15 AM

Caltrans : Roadwork on US-101 Northbound entering at E Hillsdale Blvd (San Mateo). On Ramp closed. Expect delays. From 8:00 PM Friday, September 18, 2026 to 12:00 PM Saturday, September 19, 2026. Sep 19, 9:00 AM

Caltrans : Roadwork on US-101 Northbound entering at E Hillsdale Blvd (San Mateo). On Ramp closed. Expect delays. From 8:00 PM Friday, September 18, 2026 to 12:00 PM Saturday, September 19, 2026. Sep 19, 8:45 AM

Caltrans : Roadwork on US-101 Northbound entering at E Hillsdale Blvd (San Mateo). On Ramp closed. Expect delays. From 8:00 PM Friday, September 18, 2026 to 12:00 PM Saturday, September 19, 2026. Sep 19, 8:30 AM

Caltrans : Roadwork on US-101 Northbound entering at E Hillsdale Blvd (San Mateo). On Ramp closed. Expect delays. From 8:00 PM Friday, September 18, 2026 to 12:00 PM Saturday, September 19, 2026. Sep 19, 8:15 AM

Caltrans : Roadwork on US-101 Northbound entering at E Hillsdale Blvd (San Mateo). On Ramp closed. Expect delays. From 8:00 PM Friday, September 18, 2026 to 12:00 PM Saturday, September 19, 2026. Sep 19, 8:00 AM

Caltrans : Roadwork on US-101 Northbound entering at E Hillsdale Blvd (San Mateo). On Ramp closed. Expect delays. From 8:00 PM Friday, September 18, 2026 to 12:00 PM Saturday, September 19, 2026. Sep 19, 7:45 AM

Caltrans : Roadwork on US-101 Northbound entering at E Hillsdale Blvd (San Mateo). On Ramp closed. Expect delays. From 8:00 PM Friday, September 18, 2026 to 12:00 PM Saturday, September 19, 2026. Sep 19, 7:30 AM

Caltrans : Roadwork on US-101 Northbound entering at E Hillsdale Blvd (San Mateo). On Ramp closed. Expect delays. From 8:00 PM Friday, September 18, 2026 to 12:00 PM Saturday, September 19, 2026. Sep 19, 7:15 AM

Caltrans : Roadwork on US-101 Northbound entering at E Hillsdale Blvd (San Mateo). On Ramp closed. Expect delays. From 8:00 PM Friday, September 18, 2026 to 12:00 PM Saturday, September 19, 2026. Sep 19, 7:00 AM

Source: 511_sfbay · ID 511.org/1551664 First seen Sep 19, 2026 7:00 AM