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SFMTA’s Central Subway will connect San Francisco’s southeast neighborhoods to downtown and Chinatown. Whether you’re a concerned citizen, business owner, Muni customer, or just stumbled onto our blog, we welcome your questions and encourage you to connect with us. Follow us for the latest Central Subway news and information.

12 February 2016 ~ 1 Comment

Project Advancement | February 12 – 22

Workers weld temporary steel supports in the station box

Workers weld temporary steel supports in the station box

This notice provides a construction update and a look ahead for what to expect in the areas where we are building four new stations along the alignment. You’ll find information about work activities, traffic and transportation impacts taking place over the next two weeks at SoMa, Yerba Buena|Moscone, Union Square and Chinatown.

Now through March, the contractor is installing a 36″ sewer line at 4th Street and Townsend Street. This work is being performed Monday to Friday. Hours of construction are 7p.m. to 5a.m.

Construction schedules, bus routes, and stop locations are subject to change due to unforeseen conditions. Signs will be posted at affected stops to advise of service changes.

Our thanks go out to the businesses, residents, shoppers, commuters, and all those who are touched by the Project, for their continued engagement as we work to extend the city’s public transportation system.

The Central Subway Team

11 February 2016 ~ 0 Comments

Featured Photos – February 11

This is the top level of the “station box,” the structure beneath 4th Street between Folsom and Howard where trains will stop to take on passengers.  When completed, the station box will house the train platform area and infrastructure for station operations.

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In the lower level of the station box, welding work illuminates a work area with pink ultraviolet light.

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Here, workers weld steel beams to support the internal structure of the station.

Ultraviolet light streams across the inside of the station box, where temporary steel supports are being welded into place.

If you would like to see more photos of project construction, check out our Flickr, updated weekly!

10 February 2016 ~ 0 Comments

Project Advancement | February 5 – 15

Workers break through the south wall of the Union Square|Market Street Station

Workers break through the south wall of the Union Square|Market Street Station

This notice provides a construction update and a look ahead for what to expect in the areas where we are building four new stations along the alignment. You’ll find information about work activities, traffic and transportation impacts taking place over the next two weeks at SoMa, Yerba Buena|Moscone, Union Square and Chinatown.

Construction activity at the Union Square | Market Square is progressing.  Currently crews are demolishing the southeast corner of the Union Square Garage.  This corner of Union Square Park will  become the north entrance of the station.  Over on Stockton Street,  excavation is being performed on what will become part of the station roof deck

Construction schedules, bus routes, and stop locations are subject to change due to unforeseen conditions. Signs will be posted at affected stops to advise of service changes.

Our thanks go out to the businesses, residents, shoppers, commuters, and all those who are touched by the Project, for their continued engagement as we work to extend the city’s public transportation system.

The Central Subway Team

10 February 2016 ~ 0 Comments

Project Advancement | January 29 – February 8

A worker moves mud removed from inside the station box of the Yerba Buena | Moscone site

  A worker moves mud inside the station box of the Yerba Buena | Moscone site

This notice provides a construction update and a look ahead for what to expect in the areas where we are building four new stations along the alignment. You’ll find information about work activities, traffic and transportation impacts taking place over the next two weeks at SoMa, Yerba Buena|Moscone, Union Square and Chinatown.

Construction continues to progress. The crews are performing excavation at all four sites.

Construction schedules, bus routes, and stop locations are subject to change due to unforeseen conditions. Signs will be posted at affected stops to advise of service changes.

Our thanks go out to the businesses, residents, shoppers, commuters, and all those who are touched by the Project, for their continued engagement as we work to extend the city’s public transportation system.

The Central Subway Team

05 February 2016 ~ 0 Comments

Project Advancement | January 22 – February 1

Workers weave utilities around each other while upgrading conduits and water lines on the east side of 4th.

Utility work and the installation of waterlines is progressing at 4th Street and Bryant

This notice provides a construction update and a look ahead for what to expect in the areas where we are building four new stations along the alignment. You’ll find information about work activities, traffic and transportation impacts taking place over the next two weeks at SoMa, Yerba Buena|Moscone, Union Square and Chinatown.

Through Friday, February 5, the contractor will be performing night work to install a swear line at the intersection of 4th Street and Townsend Street.   Hours are 7p.m. to 5a.m.  The 30 Stockton and 45 Union Stockton bus will be relocated 100 feet west.

Construction schedules, bus routes, and stop locations are subject to change due to unforeseen conditions. Signs will be posted at affected stops to advise of service changes.

Our thanks go out to the businesses, residents, shoppers, commuters, and all those who are touched by the Project, for their continued engagement as we work to extend the city’s public transportation system.

The Central Subway Team

05 February 2016 ~ 0 Comments

Project Advancement | January 15 – 25

A large excavator removes debris from the garage demolition site, where the future north station entrance will be located.

A large excavator removes debris from the garage demolition site, where the future north station entrance will be located

This notice provides a construction update and a look ahead for what to expect in the areas where we are building four new stations along the alignment. You’ll find information about work activities, traffic and transportation impacts taking place over the next two weeks at SoMa, Yerba Buena|Moscone, Union Square and Chinatown.

Construction at all four station sites is progressing.   Excavation is being performed at all sites of the Central Subway alignment.

Construction schedules, bus routes, and stop locations are subject to change due to unforeseen conditions. Signs will be posted at affected stops to advise of service changes.

Our thanks goes out to the businesses, residents, shoppers, commuters, and all those who are touched by the Project, for their continued engagement as we work to extend the city’s public transportation system.

The Central Subway Team

08 January 2016 ~ 0 Comments

Project Advancement | January 8 – January 18

 

Workers traverse an ever-changing work site inside the station headhouse, where temporary steel supports are going up.

Temporary steel supports are installed in the Yerba Buena|Moscone site

This notice provides a construction update and a look ahead for what to expect in the areas where we are building four new stations along the alignment. You’ll find information about work activities, traffic and transportation impacts taking place over the next two weeks at SoMa, Yerba Buena|Moscone, Union Square and Chinatown.

Work at the Yerba Buena | Moscone station progresses. Excavation of the future station platform has begun and temporary steel supports are being installed in the headhouse structure.

Construction schedules, bus routes, and stop locations are subject to change due to unforeseen conditions. Signs will be posted at affected stops to advise of service changes.

Our thanks goes out to the businesses, residents, shoppers, commuters, and all those who are touched by the Project, for their continued engagement as we work to extend the city’s public transportation system.

31 December 2015 ~ 2 Comments

Project Advancement | December 31, 2015 – January 11, 2016

 

Tourists, families, and shoppers all enjoy the 2015 Winter Walk

Tourists, families, and shoppers all enjoy the 2015 Winter Walk

This notice provides a construction update and a look ahead for what to expect in the areas where we are building four new stations along the alignment. You’ll find information about work activities, traffic and transportation impacts taking place over the next two weeks at SoMa, Yerba Buena|Moscone, Union Square and Chinatown.

The Central Subway Team wants to wish San Francisco a Happy New Year! Your support of our Project is much appreciated. Please let us know what you liked seeing in 2015.

Construction schedules, bus routes, and stop locations are subject to change due to unforeseen conditions. Signs will be posted at affected stops to advise of service changes.

Our thanks goes out to the businesses, residents, shoppers, commuters, and all those who are touched by the Project, for their continued engagement as we work to extend the city’s public transportation system.

The Central Subway Team

18 December 2015 ~ 0 Comments

Project Advancement | December 18 – 28

A massive animated light show is projected and looped on the face of the Macy's Men's store.

A massive animated light show is projected and looped on the face of the Macy’s Men’s store in the Winter Walk

This notice provides a construction update and a look ahead for what to expect in the areas where we are building four new stations along the alignment. You’ll find information about work activities, traffic and transportation impacts taking place over the next two weeks at SoMa, Yerba Buena|Moscone, Union Square and Chinatown.

The Central Subway Team wants to wish San Francisco a very happy and healthy holiday Season.  The Winter Walk, continuing through January 1, is a great place to relax after the frenzy of last minute shopping.  Shop Chinatown’s prize raffle continues through December 23.  All of the merchants on 4th Street are open for business.

Construction schedules, bus routes, and stop locations are subject to change due to unforeseen conditions. Signs will be posted at affected stops to advise of service changes.

Our thanks goes out to the businesses, residents, shoppers, commuters, and all those who are touched by the Project, for their continued engagement as we work to extend the city’s public transportation system.

The Central Subway Team

17 December 2015 ~ 0 Comments

Central Subway Tunnel Project Wins Award of Merit From ENR

Central Subway Project Manager John Funghi leads Mayor Edwin Lee on a tour of the completed tunnels

Central Subway Project Manager John Funghi leads Mayor Edwin Lee on a tour of the completed tunnels

Congratulations to the Central Subway Team for achieving an Award of Merit for best transportation project of 2015 from Engineering News record, a weekly magazine highlighting the construction industry. The award was given for the completion of the Central Subway Tunnel. The Central Subway Tunnel Project was cited for completing an intricate project on time and within the approved budget.

A method called deep tunneling was used to build the tunnels. Two tunnel boring machines, named for San Francisco Legends Alma Spreckels and Dr. Margaret “Mom” Chung, were used in the construction. Use of these machines enabled the work to be finished with less surface disruptions and reduced utility relocations.

The Central Subway Tunnel completion was a major milestone for the project. When the Central Subway is completed, T Third Line trains will travel mostly underground in the 2 mile tunnels from 4th Street to Chinatown, bypassing heavy traffic on congested 4th and Stockton Streets. Our team is very proud to have been recognized by ENR for this achievement.

The Central Subway Team looks forward to more success in 2016. We wish San Francisco a very happy and healthy holiday season.

For more information on this honor see http://www.enr.com/articles/38039-airporttransit-award-of-merit-central-subway-tunnel.

Below are some photos of the project.

Former Mayor Gavin Newsom and former District 3 Supervisor David Chiu join other local dignitaries at the Central Subway groundbreaking ceremony in February, 2010

Former Mayor Gavin Newsom and former District 3 Supervisor David Chiu join other local dignitaries at the Central Subway groundbreaking ceremony in February, 2010

 

Two workers install utility conduits following the completion of new section of tunnel

Two workers install utility conduits following the completion of new section of tunnel

 

The cutterheads of both tunnel boring machines can be seen following the completion of the twin tunnels of the Central Subway

The cutterheads of both tunnel boring machines can be seen following the completion of the twin tunnels of the Central Subway