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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 September 2014 ~ 0 Comments

Project Advancements | September 13 – September 22, 2014

A worker removes concrete to expose structural steel at the launchbox site near 4th and Harrison streets.

A worker removes concrete to expose structural steel at the launchbox site near 4th and Harrison 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.

Schedules may change, and 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 Bryant to King streets.

  • On 4th Street between Bryant and Brannan:
    • At Bryant Street, excavation of an AT&T vault and installation of a sewer continues.
      • Muni service impact: 47 Van Ness Line bus stop temporarily relocated to mid-block.
    • At Freelon Street, excavation of a sewer man-hole continues. Freelon Street is closed to through traffic until late September.
  • On 4th Street between Brannan and King:
    • Sewer line cleaning continues.
    • At Bluxome Street, installation of an AT&T vault continues.

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

  • On 4th Street between Howard and Folsom:
    • Traffic reduced to one traffic lane starting Sept. 14.
    • At Clementina Street, closure to through traffic.
    • At Folsom Street, replacement of water line continues.

Union SquareConstruction crews are excavating the site, building station walls and relocating utilities along Stockton Street between Ellis and Post streets.

  • On Stockton Street between Ellis and Post:
    • Ellis Street to Geary Boulevard, closure to vehicular traffic.
    • At O’Farrell Street, reduction to one traffic lane.
      • Sidewalk closure scheduled overnight 10 p.m. to 6 a.m. for the next few weeks.
    • At Geary Boulevard, reduction to one traffic lane.
      • Starting Sept. 13 the crosswalk on the north side of Geary Boulevard will open. The crosswalk on the south side of Geary Boulevard will temporarily close.
      • Muni service impact: Bus stop at Geary Boulevard and Stockton Street temporarily discontinued until early October. Board bus on Geary Boulevard at Powell Street.
  • On Ellis Street between Stockton and Powell:
    • Ellis Street is temporarily closed to westbound traffic.

Chinatown: Construction crews are building station walls and installing new utilities at 933-949 Stockton Street between Clay and Washington streets.

  • On Washington Street between Stockton and Trenton:
    • Street is closed to through traffic.
  • On Washington Street between Stockton and Spofford:
    • Replacement of water pipeline continues.
    • Installation of a new fire hyrdrant continues.

North BeachConstruction crews are removing the final tunnel boring machine (TBM) and restoring the site.

  • 1731-1741 Powell:
    • Removal of TBM continues.
  • On Columbus Avenue between Union and Filbert:
    • Installation of new street lights and landscaping by Sustainable Streets continues.

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.

05 September 2014 ~ 0 Comments

Project Advancements | September 6 – September 15, 2014

On Stockton Street near Ellis Street, the future Union Square/Market Street station is being constructed.

On Stockton Street near Ellis Street, the future Union Square/Market Street station is being constructed.

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 what is happening 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. For safety reasons, we encourage the public to follow all traffic and pedestrian notifications posted at the work sites.

Southern SoMa (Harrison to King/Berry)Excavation of a sewer man-hole continues on Freelon and 4th Street. Excavation of an AT&T vault to start on 4th and Bryant. Near Bluxome Street, installation of an AT&T vault to start. On Bryant Street, west of 4th Street, sewer installation to start next week. Temporary walkways are in place around the construction zones.

Northern SoMa (Market to Harrison)At 4th and Folsom, work to build the Yerba Buena/Moscone Station continues. This includes construction of the station walls within the work site and water line replacement at the intersection of 4th and Folsom. 4th Street from Howard to Folsom streets are reduced to one traffic lane until 5 a.m., Monday, September 8. Starting Monday, September 15, traffic lanes on 4th Street between Howard and Folsom will be reduced to one lane until early November.

Union SquareStockton Street between Ellis and Geary is closed to vehicular traffic to allow for construction of the Union Square/Market Street Station. Work is underway for pile installation to construct the station walls.

Pile installation takes place at the southwest intersection of Stockton and O’Farrell streets until late September. One lane of travel will be open. Sidewalk closure is to take place overnight between 10 p.m. and 6 a.m. on the northeast corner of Stockton at O’Farrell for next three weeks. Expect delays and use alternative routes.

Muni service impact:
The bus stop at Geary and Stockton will be temporarily discontinued until late September. Please board bus on Geary at Powell. Check back on the weekly Construction Update for the most current information on the re-opening of this stop.

Chinatown:  The contractor started station wall construction at the future station site at Stockton and Washington streets and the adjacent section of Washington Street. Work to replace the water pipeline and install a new fire hydrant on Washington is ongoing.

North Beach: Work continues at 1731-1741 Powell. Street restoration has been completed on Columbus Avenue between Filbert and Union. Sustainable Streets is scheduled to install new street lights and landscaping in the median on this portion of Columbus Avenue. This work will be completed by the end of 2014.

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.

29 August 2014 ~ 0 Comments

Project Advancements | August 30 – September 8, 2014

Near the intersection of Stockton Street at Washington Street, the walls for the future Chinatown Station are being constructed.

Near the intersection of Stockton Street at Washington Street, the walls for the future Chinatown Station are being constructed.

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 what is happening 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. For safety reasons, we encourage the public to follow all traffic and pedestrian notifications posted at the work sites.

Southern SoMa (Harrison to King/Berry): On Townsend Street between 4th and 5th streets, work on utilities continues. On Freelon Street near the east side of 4th Street, excavation of a sewer man-hole continues. On the east side of 4th Street near Bryant Street, excavation of an AT&T vault to start. Temporary walkways are in place around the construction zones.

Northern SoMa (Market to Harrison): At 4th and Folsom, work to build the Yerba Buena/Moscone Station continues. This includes construction of the station walls within the work site and water line replacement at the intersection of 4th and Folsom. 4th Street from Howard to Folsom streets continues to have two traffic lanes available for travel.

Union Square: Stockton Street between Ellis and Geary is closed to vehicular traffic to allow for construction of the Union Square/Market Street Station. Work is underway for pile installation to construct the station walls.

Pile installation takes place at the southwest intersection of Stockton and O’Farrell streets until late September. One lane of travel will be open. Expect delays and please use alternative routes.

Muni service impact: The bus stop at Geary and Stockton will be temporarily discontinued until early September. Please board bus on Geary at Powell. Please check back on the weekly Construction Update for the most current information on the re-opening of this stop.

Chinatown: The contractor started station wall construction at the future station site at Stockton and Washington streets and the adjacent section of Washington Street. Work to replace the water pipeline and install a new fire hydrant on Washington is ongoing.

North Beach: Work continues at 1731-1741 Powell. Street restoration has been completed on Columbus Avenue between Filbert and Union. Sustainable Streets is scheduled to install new street lights and landscaping in the median on this portion of Columbus Avenue. This work will be completed by the end of 2014.

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.

 

28 August 2014 ~ 4 Comments

Dismantling Big Alma

TBM Big Alma

After breaking through on June 11, the 750-ton tunnel boring machine (TBM) Big Alma was removed from the retrieval shaft in North Beach. TBM Mom Chung is currently in the process of being disassembled.
Pictured clockwise from left to right. Pieces of Big Alma: cutter head, cutters, bolts, and brackets.

Pictured clockwise from left to right. Pieces of Big Alma: cutterhead, cutters, bolts, and brackets.

Pictured clockwise from left to right: Construction crew hoisting out one of the dual motors, using cutting torches to section the shield, and leveraging against the screw auger of the TBM.

Pictured clockwise from left to right: Construction crew hoisting out one of the dual motors, using cutting torches to section the shield, and leveraging against the screw auger of the TBM.

To retrieve each TBM, the machines are cleared of debris, cut into sections, brackets re-wielded for attachment points, pieces hoisted out, and parts are loaded on trucks for off-hauling.
Northbound tunnel sits empty after TBM Big Alma was removed.

On the left, the Northbound tunnel sits empty after TBM Big Alma’s removal. On the right, TBM Mom Chung continues to be disassembled.

More information about the construction of the tunnels can be found here. In addition, more photos and videos can be accessed on our Flickr and YouTube pages.

 

22 August 2014 ~ 0 Comments

Project Advancements | August 23 – September 1, 2014

Workers removing a hopper used as part of the conveyor system fo the southbound tunnel TBM Mom Chung.

At the launchbox site near 4th and Harrison streets, workers discuss upcoming work on the southbound tunnel.

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 what is happening 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. For safety reasons, we encourage the public to follow all traffic and pedestrian notifications posted at the work sites.

Southern SoMa (Harrison to King/Berry)On Townsend Street between 4th and 5th streets, work on utilities continues. On Freelon Street near the east side of 4th Street, excavation of a sewer man-hole continues. Temporary walkways are in place around the construction zones.

Northern SoMa (Market to Harrison)At 4th and Folsom, work to build the Yerba Buena/Moscone Station continues. This includes construction of the station walls within the work site and water line replacement at the intersection of 4th and Folsom. 4th Street from Howard to Folsom streets continues to have two traffic lanes available for travel except this Saturday, August 23, when traffic will converge to one lane of travel from 7 a.m. to midnight.

Union SquareStockton Street between Ellis and Geary is closed to vehicular traffic to allow for construction of the Union Square/Market Street Station. Work is underway for pile installation to construct the station walls. The west side of Stockton Street between Post and Geary is anticipated to reopen to one lane of traffic on August 23. Until then, please use alternate routes and follow construction signs.

Pile installation takes place at the southwest intersection of Stockton and O’Farrell streets until late September. One lane of travel will be open. Starting August 27, one lane of traffic at this intersection will shift to the south side of O’Farrell. Expect delays and please use alternative routes.

Muni service impact:
The bus stop at Geary and Stockton will be temporarily discontinued until early September. Please board bus on Geary at Powell. Please check back on the weekly Construction Update for the most current information on the re-opening of this stop.

Chinatown:  The contractor started station wall construction at the future station site at Stockton and Washington streets and the adjacent section of Washington Street. Work to replace the water pipeline and install a new fire hydrant on Washington is ongoing.

North Beach: Work continues at 1731-1741 Powell. Street restoration has been completed on Columbus Avenue between Filbert and Union. Sustainable Streets is scheduled to install new street lights and landscaping in the median on this portion of Columbus Avenue. This work will be completed by the end of 2014.

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.

22 August 2014 ~ 0 Comments

Central Subway provides backdrop for House Leader Nancy Pelosi

San Francisco Municipal Transportation Agency (SFMTA) Director Ed Reiskin, House Minority Leader Nancy Pelosi, and San Francisco Mayor Edwin M. Lee at future Yerba Buena/Moscone Station Site

Pictured from left to right: San Francisco Municipal Transportation Agency (SFMTA) Director Ed Reiskin, House Minority Leader Nancy Pelosi, and San Francisco Mayor Ed Lee

On August 12, House Minority Leader Pelosi was joined by Mayor Lee and SFMTA Director Reiskin near the future site of the Central Subway Yerba Buena/Moscone Station.

Each speaker emphasized the importance of investing in mass transit. It was also noted that by building infrastructure there is an investment in San Francisco’s future generation.

The Central Subway will significantly improve the public transportation network in San Francisco and provide connections to BART, Caltrain, Muni Metro, Muni bus routes, Muni cable car lines, and in the future, high-speed rail. The T-Line extension is expected to open in 2019.

House Minority Leader Pelosi

House Minority Leader Pelosi

San Francisco Mayor Ed Lee

Mayor Lee

SFMTA Director Ed Reiskin

SFMTA Director Reiskin

 

15 August 2014 ~ 0 Comments

Project Advancements | August 16 – August 25, 2014

Cleanup of the northbound and southbound tunnels continues at the launchbox site on 4th Street between Harrison and Bryant.

Cleanup of the northbound and southbound tunnels continues at the launchbox site on 4th Street between Harrison and Bryant.

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 what is happening 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. For safety reasons, we encourage the public to follow all traffic and pedestrian notifications posted at the work sites.

Southern SoMa (Harrison to King/Berry): On Townsend Street between 4th and 5th streets, work on utilities continues. Sewer line installation is scheduled to start August 25 on the west side of 4th Street between Brannan and Welsh streets. One parking lane and one traffic lane of this section will close from 7 a.m. to 5 p.m. Temporary walkways are in place around the construction zones.

Northern SoMa (Market to Harrison): At 4th and Folsom, work to build the Yerba Buena/Moscone Station continues. This includes construction of the station walls within the work site and water line replacement at the intersection of 4th and Folsom. 4th Street from Howard to Folsom streets continues to have two traffic lanes available for travel.

Union Square: Stockton Street between Ellis and Geary is closed to vehicular traffic to allow for construction of the Union Square/Market Street Station. Work is underway for pile installation to construct the station walls. The west side of Stockton Street between Post and Geary is anticipated to reopen to one lane of traffic by August 22. Until then, please use alternate routes and follow construction signs.

Pile installation takes place at the southwest intersection of Stockton and O’Farrell streets until late September. One lane of travel will be open. Expect delays and please use alternative routes.

Muni service impact:
The bus stop at Geary and Stockton will be temporarily discontinued until September. Please board bus on Geary at Powell. Please check back the weekly Construction Update for the most current information on the re-opening of this stop.

Chinatown:  The contractor started station wall construction at the future station site at Stockton and Washington streets and on the adjacent section of Washington Street. Work to replace the water pipeline and install a new fire hydrant on Washington is ongoing. A section of the sidewalk at the northeast corner of the Washington and Stockton intersection has been demolished in order to install the new fire hydrant.

North Beach: Work continues at 1731-1741 Powell. Street restoration has been completed on Columbus Avenue between Filbert and Union. Sustainable Streets is scheduled to install new street lights and landscaping in the median on this portion of Columbus Avenue. This work will be completed by the end of 2014.

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.

14 August 2014 ~ 0 Comments

Artist Tomie Arai discusses planned art installation for Chinatown Station

Tomie Arai

Tomie Arai

Artist Tomie Arai met with some of the San Francisco community on August 7 about her art installation for the future Central Subway Station in Chinatown. More than thirty people attended the event produced in conjunction with the San Francisco Arts Commission (SFAC) and hosted by the Chinese Culture Center (CCC). The presentation was done both in English and translated into Chinese by Cathie Lam of Chinatown Community Development Center (CCDC).

Mary Chou (SFAC)

Abby Chen, curator and artistic director of CCC, welcomed the artist Tomie Arai and introduced the SFAC public art representative Mary Chou.

Ms. Chou (SFAC) described the comprehensive public art program and how it will reflect the rich cultural and historical contexts within this area (see Central Subway Arts Master Plan). As explained by Chou, the purpose of this gathering was for the artist to receive input from the community.

The location of this installation will be a wrap around the outside top entrance of the station and two platform level pieces.

Arai's work will be at locations #1 (outside wraparound), #3a (platform level), and #3b (platform level).

Arai’s work will be at locations #1 (outside wraparound), #3a (platform level), and #3b (platform level).

The public informs the artist about their preferences for the station artwork.

Arai took the group through a series of slides that represented some of her previous art work. Much of her work has dealt with cultural identities. Her work tends to highlight and celebrate a community’s shared history. Arai’s goal is to tell a story about San Francisco’s Chinatown and her concept for her installation is “Urban Archeology.” Her vision for this art piece is to represent both the past and the present of the Chinatown community. A commemorative group photo of this important gathering can be seen below.

      Some of the community members with the artist Tomie Arai.

08 August 2014 ~ 0 Comments

Project Advancements | August 9 – August 18, 2014

Ongoing construction can be seen here at the Chinatown Station site at the corner of Washington and Stockton streets.

Ongoing construction can be seen here at the Chinatown Station site at the corner of Washington and Stockton 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 what is happening 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. For safety reasons, we encourage the public to follow all traffic and pedestrian notifications posted at the work sites.

Southern SoMa (Harrison to King/Berry): On Townsend Street between 4th and 5th streets, work on utilities continues. Sewer line installation is scheduled to start in August on the west side of 4th Street between Brannan and Welsh streets. One parking lane and one traffic lane of this section will close from 7 a.m. to 5 p.m. Temporary walkways are in place around the construction zones.

Northern SoMa (Market to Harrison): At 4th and Folsom, work to build the Yerba Buena/Moscone Station continues. This includes construction of the station walls within the work site and water line replacement at the intersection of 4th and Folsom. 4th Street from Howard to Folsom streets continues to have two traffic lanes available for travel.

Union Square: Stockton Street between Ellis and Geary is closed to vehicular traffic to allow for construction of the Union Square/Market Street Station. Work is underway for pile installation to construct the station walls. The west side of Stockton Street between Post and Geary is anticipated to reopen to one lane of traffic by August 15. Until then, please use alternate routes and follow construction signs.

Pile installation takes place at the southwest intersection of Stockton and O’Farrell streets until late September. One lane of travel will be open. Expect delays and please use alternative routes.

Muni service impact:
The bus stop at Geary and Stockton will be temporarily discontinued until September. Please board bus at Geary and Powell. Please check back on our weekly Construction Update for the most current information on the re-opening of this stop.

Chinatown: The contractor started station wall construction at the future station site and on the adjacent section of Washington Street. Work to replace high pressure water pipeline and install a new fire hydrant on Washington is ongoing. A section of the sidewalk at the northeast corner of the Washington and Stockton intersection is being demolished in order to install the new fire hydrant.

North Beach: Work continues at 1731-1741 Powell. Street restoration has been completed on Columbus Avenue between Filbert and Union. Sustainable Streets is installing new street lights and landscaping within the median on this portion of Columbus Avenue.

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.

01 August 2014 ~ 0 Comments

Project Advancements | August 2 – August 11, 2014

Ongoing construction can be seen here at the Yerba Buena/Moscone Station site.

Ongoing construction can be seen here at the Yerba Buena/Moscone Station site.

During the next 10 days, Central Subway work continues at sites in SoMa, Union Square, Chinatown and North Beach. This section contains brief updates about what is happening 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. In addition, we have a new construction video here. For safety reasons, we encourage the public to follow all traffic and pedestrian notifications posted at the work sites.

Southern SoMa (Harrison to King/Berry): On Brannan and Townsend streets between 4th and 5th streets, work on utilities continues. Sewer line installation starts August 4 on the west side of 4th Street between Brannan and Welsh streets. One parking lane and one traffic lane of this section will close from 7 a.m. to 5 p.m. Temporary walkways are in place around the construction zones.

Northern SoMa (Market to Harrison): At 4th and Folsom, work to build the Yerba Buena/Moscone Station continues. This includes construction of the station walls within the work site and water line replacement at the intersection of 4th and Folsom. 4th Street from Howard to Folsom streets continues to have a lane reduction overnight from 7 p.m. to 5 a.m.

Union Square: Stockton Street between Ellis and Geary is closed to vehicular traffic to allow for construction of the Union Square/Market Street Station. Work is underway for pile installation to construct the station walls. The west side of Stockton Street between Post and Geary is anticipated to reopen to one lane of traffic on August 8. Until then, please use alternate routes and follow construction signs.

Pile installation takes place at the southwest intersection of Stockton and O’Farrell streets until late August. One lane of travel will be open. Expect delays and please use alternative routes.

Muni service impact:
The bus stop at Geary and Stockton will be temporarily discontinued until September. Please board bus at Geary and Powell. Please check back on our weekly Construction Update for the most current information on the re-opening of this stop.

Chinatown:  The contractor started station wall construction at the future station site and on the adjacent section of Washington Street. Work to replace high pressure water pipeline and install new fire hydrant on Washington is ongoing. A section of the sidewalk at the northeast corner of the Washington and Stockton intersection will be demolished in order to install a new fire hydrant.

North Beach: Work continues at 1731-1741 Powell. Street restoration has been completed on Columbus Avenue between Filbert and Union. Sustainable Streets is installing new street lights and landscaping within the median on this portion of Columbus Avenue.

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.