San Francisco's 19th Avenue will be closed, again, this weekend: What to know

19th Avenue lane closures in San Francisco on track to reopen Monday

A weekend rehabilitation project on 19th Avenue in San Francisco reduced traffic to one lane, creating significant backups as Caltrans crews work to repair and repave the busy corridor.

SAN FRANCISCO - A major thoroughfare in San Francisco will be closed once again beginning Friday, continuing through the weekend, as Caltrans continues paving and repairing the road. 

19th Avenue closure in San Francisco

Southbound 19th Avenue – Highway 1 – between Lincoln Way and Sloat Boulevard in San Francisco will be closed beginning Friday at 3 a.m., through Monday at 5 a.m. 

Caltrans will be repaving the road, repairing potholes, plus upgrading the area's traffic detection system, during three weekend closures in April and May. This weekend is the second of three closures.

Why is 19th Avenue being closed?

The backstory:

"This work is necessary to fix [and] remove potholes, repair unsound pavement and repave lanes. This work will improve ride quality, and maintain safe and connected travel route," Caltrans said.

During the weekend closures, two lanes on 19th Avenue will be fully closed and one lane will stay open for public transit, emergency vehicles and local access, the transit agency said.

Drivers will not be allowed to park on 19th Avenue during the closure. 

"No-parking signs will be utilized, and your driveway access may be blocked during upcoming roadway construction on 19th Avenue. Temporary driveway closures or limited access may occur while crews work in front of your property," Caltrans said.

Alternate routes

Transit officials ask that drivers use the following alternate routes during the 19th Avenue closure.

Alternate route: Geary Boulevard

• Right on Geary
• Left on Great Highway
• Left on Lincoln Way
• Right on Sunset Boulevard
• Left on Sloat Boulevard

Alternate route: Fulton Street

• Right on Fulton
• Follow route above

Alternate route: Lincoln Way

• Right on Lincoln Way
• Left on Sunset Boulevard
• Left on Sloat Boulevard

Future street closure

The next 19th Avenue closure will begin May 22 at 7 a.m., through May 25 at 10 a.m. This closure will affect both southbound and northbound lanes from Sloat Boulevard to Holloway Avenue.