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Lane Closures: San Mateo County

Current Lane Closures status for San Mateo County

Last Updated: 6/8/2026, 9:18:37 AM
Showing 339 results
SR-1

Half Moon Bay

North / Southbound

San Bruno Ave, near Half Moon Bay, North / Southbound, route SR-1

One-Way Traffic closure

Mon, Jun 8 · 7:01 AM – until further notice

Lane 1

of 2 lanes

Work
Drainage Work
Estimated delay
5 min(s)
Log
#1 · C1TB
One-Way Traffic closure starting Mon, Jun 8 at 7:01 AM until further notice. Lanes closed: 1. Log 1.
SR-1

Half Moon Bay

North / Southbound

San Bruno Ave, near Half Moon Bay, North / Southbound, route SR-1

One-Way Traffic closure

Tue, Jun 9 · 7:01 AM – until further notice

Lane 1

of 2 lanes

Work
Drainage Work
Estimated delay
5 min(s)
Log
#2 · C1TB
One-Way Traffic closure starting Tue, Jun 9 at 7:01 AM until further notice. Lanes closed: 1. Log 2.
SR-1

Half Moon Bay

North / Southbound

San Bruno Ave, near Half Moon Bay, North / Southbound, route SR-1

One-Way Traffic closure

Wed, Jun 10 · 7:01 AM – until further notice

Lane 1

of 2 lanes

Work
Drainage Work
Estimated delay
5 min(s)
Log
#3 · C1TB
One-Way Traffic closure starting Wed, Jun 10 at 7:01 AM until further notice. Lanes closed: 1. Log 3.
SR-1

Half Moon Bay

North / Southbound

San Bruno Ave, near Half Moon Bay, North / Southbound, route SR-1

One-Way Traffic closure

Thu, Jun 11 · 7:01 AM – until further notice

Lane 1

of 2 lanes

Work
Drainage Work
Estimated delay
5 min(s)
Log
#4 · C1TB
One-Way Traffic closure starting Thu, Jun 11 at 7:01 AM until further notice. Lanes closed: 1. Log 4.
SR-1

Half Moon Bay

North / Southbound

San Bruno Ave, near Half Moon Bay, North / Southbound, route SR-1

One-Way Traffic closure

Fri, Jun 12 · 7:01 AM – until further notice

Lane 1

of 2 lanes

Work
Drainage Work
Estimated delay
5 min(s)
Log
#5 · C1TB
One-Way Traffic closure starting Fri, Jun 12 at 7:01 AM until further notice. Lanes closed: 1. Log 5.
SR-1

Half Moon Bay

North / Southbound

Bernardo Ave, near Half Moon Bay, North / Southbound, route SR-1

Lane closure

Fri, Jun 12 · 10:01 PM – until further notice

Lane MedianLane 1

of 2 lanes

Work
AC Paving/Overlay
Estimated delay
Not Reported min(s)
Log
#1 · C1VB
Lane closure starting Fri, Jun 12 at 10:01 PM until further notice. Lanes closed: Median, 1. Log 1.
SR-1

Half Moon Bay

North / Southbound

Seymour St, near Half Moon Bay, North / Southbound, route SR-1

Lane closure

Fri, Jun 12 · 10:01 PM – until further notice

Lane MedianLane 1

of 2 lanes

Work
AC Paving/Overlay
Estimated delay
Not Reported min(s)
Log
#2 · C1VB
Lane closure starting Fri, Jun 12 at 10:01 PM until further notice. Lanes closed: Median, 1. Log 2.
SR-1

Half Moon Bay

North / Southbound

Grand Blvd/Silver Av, near Half Moon Bay, North / Southbound, route SR-1

Lane closure

Fri, Jun 12 · 10:01 PM – until further notice

Lane MedianLane 1

of 2 lanes

Work
AC Paving/Overlay
Estimated delay
Not Reported min(s)
Log
#3 · C1VB
Lane closure starting Fri, Jun 12 at 10:01 PM until further notice. Lanes closed: Median, 1. Log 3.
SR-1

Half Moon Bay

North / Southbound

Coral Reef Ave, near Half Moon Bay, North / Southbound, route SR-1

Lane closure

Fri, Jun 12 · 10:01 PM – until further notice

Lane MedianLane 1

of 2 lanes

Work
AC Paving/Overlay
Estimated delay
Not Reported min(s)
Log
#4 · C1VB
Lane closure starting Fri, Jun 12 at 10:01 PM until further notice. Lanes closed: Median, 1. Log 4.
SR-1

Half Moon Bay

North / Southbound

Wavecrest Rd, near Half Moon Bay, North / Southbound, route SR-1

Lane closure

Fri, Jun 12 · 6:01 PM – until further notice

Lane MedianLane 1

of 2 lanes

Work
AC Paving/Overlay
Estimated delay
Not Reported min(s)
Log
#5 · C1VB
Lane closure starting Fri, Jun 12 at 6:01 PM until further notice. Lanes closed: Median, 1. Log 5.
SR-1

Half Moon Bay

North / Southbound

Seymour St, near Half Moon Bay, North / Southbound, route SR-1

Lane closure

Fri, Jun 12 · 6:01 PM – until further notice

Lane MedianLane 1

of 2 lanes

Work
AC Paving/Overlay
Estimated delay
Not Reported min(s)
Log
#6 · C1VB
Lane closure starting Fri, Jun 12 at 6:01 PM until further notice. Lanes closed: Median, 1. Log 6.
SR-1

Half Moon Bay

Northbound

Seymour St, near Half Moon Bay, Northbound, route SR-1

Lane closure

Fri, Jun 12 · 9:01 PM – until further notice

Lane MedianLane 1

of 2 lanes

Work
AC Paving/Overlay
Estimated delay
Not Reported min(s)
Log
#7 · C1VB
Lane closure starting Fri, Jun 12 at 9:01 PM until further notice. Lanes closed: Median, 1. Log 7.
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What This Page Shows

This page collects live lane closures data for San Mateo County across every Caltrans district that publishes this data type.

About Lane Closures in San Mateo County

View Real-time lane closures updates for highways in San Mateo County, including I-280, SR-1, SR-35, SR-82, SR-84, SR-92, US-101. Whether you are commuting through San Mateo County or traveling long-distance, these Lane Closures, road conditions, highway status provide vital information for a safe trip.

Data is sourced directly from Caltrans and includes coverage of major routes and local highways within the county, specifically monitoring I-280, SR-1, SR-35, SR-82, SR-84, SR-92, US-101. Check back for latest updates on congestion, weather impacts, and road work.