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  5. 19th Avenue (State Route 1) Rehabilitation Project Begins Monday, December 1

19th Avenue (State Route 1) Rehabilitation Project Begins Monday, December 1

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District 4 Caltrans Logo and Building California Logo

Map of the 19th Avenue Rehabilitation Project, a major effort to restore and improve one of San Francisco’s busiest corridors.
Alternate route map Northbound 19th Ave - Sloat Blvd to Lincoln Way for the 19th Avenue Rehabilitation Project, a major effort to restore and improve one of San Francisco’s busiest corridors.

San Francisco — Caltrans will start 19th Avenue Rehabilitation Project. This will restore and improve one of San Francisco’s busiest corridors. Phase 1 construction is scheduled to begin Monday, December 1, 2025, at Sloat Boulevard, moving north toward Lincoln Way.

Project Details

The Project will repave all three lanes in each direction of State Route 1 (19th Avenue) between Lincoln Way and Holloway Avenue, approximately 18.8 lane miles, and Park Presidio Boulevard and California Street intersection.

  • Phase 1:
    • Start Date: December 1, 2025
    • Work will begin at Sloat Boulevard and proceed north toward Lincoln Way and then will continue from Lincoln Way south to Sloat Boulevard.
    • Parking strip repaving will be completed first before full lane repaving begins.
  • Phase 2:
    • Full lane repaving from Holloway Avenue to Lincoln Way begins Spring 2026.
    • Repaving southbound lanes from Sloat to Holloway is scheduled for June 2026.
    • Work will generally take place Monday–Friday, 7:00 a.m.– 3:00 p.m.
    • Nighttime work will be required at the California Street/Park Presidio intersection (10:00 p.m.– 6:00 a.m.).

Traffic Impacts

  • Phase 1 Traffic Impacts:
    • Lane Reductions: Two lanes always open and one lane closed in the direction of active work. All lanes will be open in the opposite direction.
  • Phase 2 Traffic Impacts:
    • Lane Reductions: One lane will be open, and two lanes closed in the direction of active work. All lanes will be open in the opposite direction.
    • Delays: Motorists should expect delays and are encouraged to use alternate routes, especially during peak hours (6:00 a.m.–10:00 a.m. and 3:00 p.m.–7:00 p.m.).
    • Bus Stops: Some bus stops may be temporarily relocated. Caltrans will post details about relocations when information is available. Bus riders should check with local transit for updates.

For real-time traffic information, visit: quickmap.dot.ca.gov

Caltrans thanks the traveling public for their patience while this important work is completed.

Please visit Caltrans www.sfhighwayprojects.com.

For 24/7 traffic updates, please visit 511.org: https://x.com/511SFBay
For real-time information, visit Caltrans QuickMap: https://quickmap.dot.ca.gov
Follow us on X: https://x.com/CaltransD4
Or call 1-800-472-7623, 1-800-427-ROAD for state highway conditions statewide.