Hi! Welcome...

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.

19 December 2014 ~ 0 Comments

Project Advancements | Dec. 20, 2014 – Jan. 2, 2015

Due to the upcoming holidays, this update covers the next two weeks of Central Subway work. There will be no update next Friday, Dec. 26. Happy holidays from the Central Subway team!

Underneath 4th Street between Harrison and Bryant, preparation for the portal work has begun.

Underneath 4th Street between Harrison and Bryant, preparation for the portal work has begun.

During the next 14 days, Central Subway work continues at sites in SoMa, Union Square, Chinatown and North Beach. This section contains brief updates about recent construction activities and a look-ahead for what to expect in each neighborhood. For more detailed information, scroll down or click on the links below. You can also find construction, traffic detour, and Muni impact information on our project Google Map.

Construction work on Stockton Street in Union Square has paused for the holiday season. Work within the station sites, underground work, and night work continues. See your neighborhood section below for details.

Construction schedules may change due to unforeseen conditions. We encourage the public to follow traffic and pedestrian notifications posted at the work sites.

Southern SoMa (Harrison to King): Ongoing utilities along 4th Street from Harrison to King streets.

Northern SoMa (Market to Harrison): Continuing excavation of the station along 4th Street between Howard and Folsom streets.

  • Closure of the sidewalk at 4th and Clementina streets will continue. Access Clementina Street from 5th Street.

Union Square: Construction has paused on Stockton and Ellis streets, resuming in January.

Chinatown: Construction crews will be demobilizing equipment and will begin to excavate the site in preparation of the station roof. Ongoing utility installation on Stockton and Washington streets.

North Beach: Restoration of the retrieval shaft site is ongoing.

We thank the businesses, residents, shoppers, and commuters of San Francisco for their continued engagement with this significant investment in the extension of our public transportation system. When opened in 2019, the Central Subway will provide a much-needed connection between major employment, retail, cultural and residential areas of the city.

12 December 2014 ~ 0 Comments

Project Advancements | December 13 – December 22, 2014

The construction crew has opened one additional lane to traffic on 4th Street   between Howard and Folsom streets.

An additional lane has been reopened to traffic on 4th Street between Howard and Folsom streets.

During the next 10 days, Central Subway work continues at sites in SoMa, Union Square, Chinatown and North Beach. This post contains brief updates about recent construction activities and a look-ahead for what to expect in each neighborhood. For more detailed information, click here or on the links below. You can also find construction, traffic detour, and Muni impact information on our project Google Map.

Construction work on Stockton Street in Union Square has paused for the holiday season. Work within the station sites, underground work, and night work has continued. See your neighborhood section below for details.

Construction schedules may change due to unforeseen conditions. We encourage the public to follow traffic and pedestrian notifications posted at the work sites.

Southern SoMa (Harrison to King): Construction crews are relocating and installing new utilities along 4th Street from Harrison to King streets.

  • On 4th Street between Harrison and Bryant streets, construction of the portal continues.
    • Closure of this section of 4th Street through the end of February 2015.

Northern SoMa (Market to Harrison)Construction crews are excavating the area along 4th Street between Howard and Folsom streets.

  • On 4th Street between Market and Mission streets, night work pipe installation is scheduled for Dec. 14 to Dec. 19 from 10 p.m. to 7 a.m.

Union SquareConstruction crews have converted Stockton Street between Ellis Street and Geary Boulevard into a holiday plaza called “Winter Walk SF.”

Chinatown: Construction crews are building station walls and installing new utilities on Stockton Street between Sacramento and Washington streets.

North BeachConstruction crews are restoring the retrieval shaft site.

We thank the businesses, residents, shoppers, and commuters of San Francisco for their continued engagement with this significant investment in the extension of our public transportation system. When opened in 2019, the Central Subway will provide a much-needed connection between major employment, retail, cultural and residential areas of the city.

 

05 December 2014 ~ 0 Comments

Project Advancements | December 6 – December 15, 2014

People enjoy "Winter Walk SF" on Stockton Street in Union Square. More information is available on our blog.

People enjoy “Winter Walk SF” on Stockton Street in Union Square. More information is available on our blog.

Project Advancements

December 6 - December 15, 2014

During the next 10 days, Central Subway work continues at sites in SoMa, Union Square, Chinatown and North Beach. This post contains brief updates about recent construction activities and a look-ahead for what to expect in each neighborhood. For more detailed information, click here or on the links below. You can also find construction, traffic detour, and Muni impact information on our project Google Map.

Construction work on Stockton Street in Union Square has paused for the holiday season. Work within the station sites, underground work, and night work has continued. See your neighborhood section below for details.

Construction schedules may change due to unforeseen conditions. We encourage the public to follow traffic and pedestrian notifications posted at the work sites.

Southern SoMa (Harrison to King): Construction crews are relocating and installing new utilities along 4th Street from Harrison to King streets.

  • At the intersection of 4th and Brannan streets, sewer line work is scheduled for Dec. 8 to Dec. 12.
    • Night work hours from 10 p.m. to 7 a.m.
  • On 4th Street between Harrison and Bryant streets, construction of the portal continues.
    • Closure of this section of 4th Street through the end of February 2015.

Northern SoMa (Market to Harrison)Construction crews are building walls along 4th Street between Howard and Folsom streets.

  • Temporary closure of covered sidewalk along 4th Street from Howard to Clementina streets from 8 p.m. Dec 8 to 5 p.m. Dec 12.
    • Pedestrians may access Clementina Street from 5th Street.

Union SquareConstruction crews have converted Stockton Street between Ellis Street and Geary Boulevard into a holiday plaza called “Winter Walk SF.”

  • On Ellis Street between Stockton and Powell streets, pile installation to construct underground station walls.
    • Night work hours from 10 p.m. to 6 a.m.

Chinatown: Construction crews are building station walls and installing new utilities on Stockton Street between Sacramento and Washington streets.

North BeachConstruction crews are restoring the retrieval shaft site.

We thank the businesses, residents, shoppers, and commuters of San Francisco for their continued engagement with this significant investment in the extension of our public transportation system. When opened in 2019, the Central Subway will provide a much-needed connection between major employment, retail, cultural and residential areas of the city.

04 December 2014 ~ 0 Comments

Check-Out Winter Walk SF

On Dec. 3, San Francisco Mayor Ed Lee, the Union Square Business Improvement District, the San Francisco Municipal Transportation Agency and the Central Subway officially kicked-off “Winter Walk SF” in Union Square – an open plaza for the public to enjoy. This festive, pedestrian-friendly holiday hub runs through January 1 on Stockton Street between Ellis Street and Geary Boulevard.

Mayor Lee welcomes the public to the holiday plaza and encourages people to shop locally.

Mayor Lee welcomes the public to the holiday plaza and encourages people to shop locally.

WinterWalk_pdf

Holiday activities include: a nightly light art show, carolers, live music, food trucks and promotional incentives.

The public is encouraged to check out "Winter Walk SF" and it's nightly light art show.

The public is encouraged to check out “Winter Walk SF” and it’s nightly light art show.

San Francisco Municipal Transportation Agency (SFMTA) Director Ed Reiskin lists ways to get around the city - public transportation, bike, on foot and by vehicle.

San Francisco Municipal Transportation Agency (SFMTA) Director Ed Reiskin lists ways to get around the city – public transportation, bike, on foot and by vehicle.

More details and scheduled events can be found here.

21 November 2014 ~ 0 Comments

Project Advancements | November 22 – December 8, 2014

This post covers the next two weeks. Our next update will be on Friday, Dec. 5. Happy Thanksgiving from the Central Subway team!

The contractor opened the roadway decks to pour concrete for a gateway structure that will allow the T Third Line an entry/exit onto 4th Street.

The contractor opened the roadway decks to pour concrete for a gateway structure that will allow the T Third Line an entry/exit onto 4th Street.

During the next 17 days, Central Subway work continues at sites in SoMa, Union Square, Chinatown and North Beach. This post contains brief updates about recent construction activities and a look-ahead for what to expect in each neighborhood. For more detailed information, click here or on the links below. You can also find construction, traffic detour, and Muni impact information on our project Google Map.

Construction schedules may change due to unforeseen conditions. We encourage the public to follow traffic and pedestrian notifications posted at the work sites.

Southern SoMa (Harrison to King): Construction crews are relocating and installing new utilities along 4th Street from Harrison to King streets.

  • At the intersection of 4th and Harrison streets, work on a high pressure water line continues.
    • Two traffic lanes will remain open Monday to Friday, 7 a.m. to 3 p.m.
      • On 4th Street between Harrison and Bryant streets, one traffic lane will be available until Nov. 26.
    • Access to Interstate 80 freeway may be limited on some evenings from 8 p.m. to 5 a.m. and during weekends.
  • On 4th Street between Harrison and Bryant streets, construction of the portal continues.
    • Tentative closure of 4th Street between Harrison and Bryant streets on Nov. 29 between midnight and 6 a.m.
    • Closure of 4th Street between Harrison and Bryant streets starting Dec.1 through end of February 2015.

Northern SoMa (Market to Harrison): Construction crews are building walls and replacing a water line along 4th Street between Howard and Folsom streets.

Union Square: Construction crews are converting portions of Stockton Street between Ellis Street and Geary Boulevard into a holiday plaza called “Winter Walk SF.”

Chinatown: Construction crews are building station walls and installing new utilities on Stockton Street between Sacramento and Washington streets.

North Beach: Construction crews are restoring the retrieval shaft site.

We thank the businesses, residents, shoppers, and commuters of San Francisco for their continued engagement with this significant investment in the extension of our public transportation system. When opened in 2019, the Central Subway will provide a much-needed connection between major employment, retail, cultural and residential areas of the city.

14 November 2014 ~ 0 Comments

Project Advancements | November 15 – November 24, 2014

A welder fuses two metal plates together at the end of the day.

A welder fuses two metal plates together at the end of the day.

During the next 10 days, Central Subway work continues at sites in SoMa, Union Square, Chinatown and North Beach. This post contains brief updates about recent construction activities and a look-ahead for what to expect in each neighborhood. For more detailed information, click here or on the links below. You can also find construction, traffic detour, and Muni impact information on our project Google Map.

Construction schedules may change due to unforeseen conditions. We encourage the public to follow traffic and pedestrian notifications posted at the work sites.

Southern SoMa (Harrison to King): Construction crews are relocating and installing new utilities along 4th Street from Harrison to King streets.

  • At the intersection of 4th and Harrison streets, work on a high pressure water line continues.
    • Two traffic lanes will remain open Monday to Friday, 7 a.m. to 3 p.m.
      • On 4th Street between Harrison and Bryant streets, one traffic lane will be available starting Nov. 20 through Nov. 26.
    • Access to Interstate 80 freeway may be limited on some evenings from 8 p.m. to 5 a.m. and during weekends.
  • On 4th Street between Bryant and Welsh streets, AT&T vault installation continues.
    • Muni service impact: The bus stop on Bryant Street at 4th Street has been relocated to the mid-block of Bryant Street between 4th and 5th streets until Nov. 25.

Northern SoMa (Market to Harrison)Construction crews are building walls and replacing a water line along 4th Street between Howard and Folsom streets.

  • On 4th Street between Folsom and Harrison streets, sewer line replacement continues.
    • Two traffic lanes will remain open Monday to Friday, 7 a.m. to 4 p.m.
    • Parking in this area may be limited.

Union SquareConstruction crews are excavating the site, building station walls and relocating utilities on Stockton Street between Ellis Street and Maiden Lane. Work on restoring portions of this area for the holidays continues.

  • For a look at the restoration work on Stockton Street, click here.

Chinatown: Construction crews are building station walls and installing new utilities on Stockton Street between Sacramento and Washington streets.

  • On Washington Street between Stockton and Spofford streets, replacement of a high pressure water line and installation of a fire hydrant continues.
    • Work hours are Monday to Friday, 7 a.m. to 5 p.m.
    • Parking may be impacted in the vicinity of the construction area.

North BeachConstruction crews continue to restore the retrieval shaft site.

We thank the businesses, residents, shoppers, and commuters of San Francisco for their continued engagement with this significant investment in the extension of our public transportation system. When opened in 2019, the Central Subway will provide a much-needed connection between major employment, retail, cultural and residential areas of the city.

 

12 November 2014 ~ 1 Comment

Portal Structure Moves Forward

Under 4th Street, between Harrison and Bryant streets, work continues at the launch box site. This site is where tunnel boring machines, Mom Chung and Big Alma, were launched last year. The launch box is now being transformed into a portal (gateway structure).

This rendering shows what 4th Street may look like after the portal is constructed between Harrison and Bryant streets.

This rendering shows what the portal may look like upon completion.

The portal will bring the light rail vehicles to the surface and vice-versa, thereby connecting the north and south quadrants of the city. The construction of the portal includes building walls, a floor/ramp and back filling the area. The walls and floor are being strengthened by inserting metal re-bar into the structure.

Forms for the floor are being built and rebar inserted to reinforce the concrete. The beams across the top support 4th Street which sits above this area. The entrance/exit for the north and southbound tunnels can be seen in the background.

The floor of the portal is gradually being built into a ramp.

A worker walks back towards the tunnels.

The portal walls are being reinforced with re-bar.

The crew installs metal bracing to support the wall.

 Metal bracing is being installed to support the walls.

Visible surface construction activity for the portal will be seen in December. The portal is estimated to be completed by the 2nd quarter of 2015.

07 November 2014 ~ 0 Comments

Project Advancements | November 8 – November 17, 2014

Workers install forms to house the future concrete walls of the tunnel portal. The portal is the entrance/exit for the extension of the T Third Line being constructed underground on 4th Street between Harrison and Bryant streets.

Workers are installing concrete walls for the future tunnel portal. The portal will be used as an entrance/exit for the extension of the T Third Line being constructed underground on 4th Street between Harrison and Bryant streets.

During the next 10 days, Central Subway work continues at sites in SoMa, Union Square, Chinatown and North Beach. This post contains brief updates about recent construction activities and a look-ahead for what to expect in each neighborhood. For more detailed information, click here or on the links below. You can also find construction, traffic detour, and Muni impact information on our project Google Map.

Construction schedules may change due to unforeseen conditions. We encourage the public to follow traffic and pedestrian notifications posted at the work sites.

Southern SoMa (Harrison to King): Construction crews are relocating and installing new utilities along 4th Street from Harrison to King streets.

  • At the intersection of 4th and Harrison streets, work on a high pressure water line continues.
    • Two traffic lanes will remain open Monday to Friday, 7 a.m. to 3 p.m.
      • On 4th Street between Harrison and Bryant streets, one traffic lane will be available starting Nov. 20 through Nov. 26.
    • Access to Interstate 80 freeway may be limited on some evenings from 8 p.m. to 5 a.m. and during weekends.
  • On 4th Street between Bryant and Welsh streets, AT&T vault installation continues.
    • Muni service impact: Starting Nov. 12 through Nov. 25 the bus stop on Bryant Street at 4th Street is anticipated to be relocated to the mid-block of Bryant Street between 4th and 5th streets.

Northern SoMa (Market to Harrison): Construction crews are building walls and replacing a water line along 4th Street between Howard and Folsom streets.

  • On 4th Street between Folsom and Harrison streets, sewer line replacement continues.
    • Two traffic lanes will remain open Monday to Friday, 7 a.m. to 4 p.m.
    • Parking in this area may be limited.

Union Square: Construction crews are excavating the site, building station walls and relocating utilities on Stockton Street between Ellis Street and Maiden Lane. Preparations have started to restore portions of this area for the holidays.

Chinatown: Construction crews are building station walls and installing new utilities on Stockton Street between Sacramento and Washington streets.

  • On Washington Street between Stockton and Spofford streets, replacement of a high pressure water line and installation of a fire hydrant continues.
    • Work hours are Monday to Friday, 7 a.m. to 5 p.m.
    • Parking may be impacted in the vicinity of the construction area.

North Beach: Construction crews continue to restore the retrieval shaft site.

We thank the businesses, residents, shoppers, and commuters of San Francisco for their continued engagement with this significant investment in the extension of our public transportation system. When opened in 2019, the Central Subway will provide a much-needed connection between major employment, retail, cultural and residential areas of the city.

 

05 November 2014 ~ 0 Comments

Featured Photo: Ambassadors

The Central Subway Project started deploying ambassadors to assist pedestrians. This is part of a pilot program to help keep Sunday foot traffic moving in the heart of the downtown area.

An ambassador helps people cross at the intersection of Stockton and O'Farrell streets.

An ambassador assists people at the intersection of
Stockton and O’Farrell streets.

An ambassador helps pedestrians.

An ambassador gives directional help to pedestrians.

For updates on project advancements, sign up for our weekly construction update here or follow us on FacebookTwitterFlickr, or YouTube.

We thank the businesses, residents, shoppers, and commuters of San Francisco for their continued engagement with this significant investment in the extension of our public transportation system.

31 October 2014 ~ 1 Comment

Project Advancements | November 1 – November 10, 2014

Happy Halloween!
Happy Halloween!

During the next 10 days, Central Subway work continues at sites in SoMa, Union Square, Chinatown and North Beach. This post contains brief updates about recent construction activities and a look-ahead for what to expect in each neighborhood. For more detailed information, click here or on the links below. You can also find construction, traffic detour, and Muni impact information on our project Google Map.

Construction schedules may change due to unforeseen conditions. We encourage the public to follow all traffic and pedestrian notifications posted at the work sites.

Southern SoMa (Harrison to King): Construction crews are relocating and installing new utilities along 4th Street from Harrison to King streets.

  • At the intersection of 4th and King streets, utility potholing is scheduled for Nov. 3 and 4.
    • Night work hours between 7 p.m. and 5 a.m.
  • At the intersection of 4th and Harrison streets, work on a high pressure water line continues.
    • Two traffic lanes will remain open Monday to Friday, 7 a.m. to 3 p.m.
    • Access to Interstate 80 freeway may be limited on some evenings between 8 p.m. and 5 a.m.
  • On 4th Street between Brannan and Freelon streets, potholing continues.
    • Two traffic lanes will remain open Monday to Friday, 7 a.m. to 3:30 p.m.
  • Along Townsend Street between 4th and 5th streets, street light conduit installation continues.

Northern SoMa (Market to Harrison)Construction crews are building walls and replacing a water line along 4th Street between Howard and Folsom streets.

  • Tentative: On 4th Street between Folsom and Harrison streets, sewer line replacement is anticipated to start on Nov. 4.

Union SquareConstruction crews are excavating the site, building station walls and relocating utilities on Stockton Street between Ellis Street and Maiden Lane.

  • AT&T night work will begin on Nov. 3 through Nov. 5 from 1 to 5 a.m.
    • Street closure of O’Farrell Street between Powell and Stockton streets.
    • Local deliveries and construction equipment allowed during the closure.

Chinatown: Construction crews are building station walls and installing new utilities on Stockton Street between Sacramento and Washington streets.

North BeachConstruction crews continue to restore the retrieval shaft site.

We thank the businesses, residents, shoppers, and commuters of San Francisco for their continued engagement with this significant investment in the extension of our public transportation system. When opened in 2019, the Central Subway will provide a much-needed connection between major employment, retail, cultural and residential areas of the city.