Three weekend closures scheduled for 19th Avenue (State Route 1) Rehabilitation Project in City of San Francisco in Spring 2026

First weekend closure scheduled from Friday, April 24 to Monday, April 26

SAN FRANCISCO COUNTY - Caltrans is scheduled to begin the second and final phase of the 19^th Avenue Rehabilitation Project in spring 2026, after the successful completion of the first phase in January 2026. The second phase will repave all northbound and southbound lanes of 19^th Avenue (State Route 1) between Lincoln Way and Holloway Avenue, approximately 18.8 lane miles, and Park Presidio Boulevard and the California Street intersection.

Organizing the work in three weekend closures will reduce impact on the public from 40 to nine days.

For all three closures, two lanes are scheduled to be fully closed with one lane open for public transit, emergency responders and local access.

The schedule is as follows:

• 70-hour closure: Friday, April 24 from 7 a.m. until Monday, April 26 at 5 a.m. on Northbound 19^th Avenue from Sloat Boulevard to Lincoln Avenue
• 70-hour closure: Friday, May 8 from 7 a.m. until Monday, May 10 at 5 a.m. on Southbound 19^th Avenue from Lincoln Avenue to Sloat Boulevard
• 75-hour closure: Friday, May 22 from 7 p.m. until Monday, May 25 at 10 p.m. on Southbound/Northbound 19^th Avenue from Sloat Boulevard to Halloway Avenue

The second phase of the project includes resurfacing the existing asphalt pavement on SR-1 from Holloway Avenue to Lincoln Way. California Street/Park Presidio intersection will be repaved later during the summer. The schedule also includes upgrading the traffic detection system. Parking on 19th Avenue will be restricted to work zones during weekend closures; parking is permitted on side streets.

Even though one lane will always remain open to traffic while repaving is underway, motorists are encouraged to use alternative routes.

Alternate route for the April 24 weekend for Junipero Serra Boulevard

• Steer right to Junipero Sierra Boulevard
• Take a left on Sloat Boulevard
• Take a right to Sunset Boulevard
• Take a right on Lincoln Way
• Take a left on 25th Avenue
• Take a right on Martin Luther King Jr. Drive
• Take a left on 19th Avenue/SR-1

Alternate route for the April 24 weekend for Brotherhood Way

• Drive westbound on Brotherhood Way
• Take a right on Lake Merced Boulevard
• Take a right to Sunset Boulevard
• Take a right on Lincoln Way
• Take a left on 25th Avenue
• Take a right on Martin Luther King Jr. Drive
• Take a left on 19th Ave/SR-1

For more on the 19^th Avenue project, see https://bit.ly/3PKYF2v

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.