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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.

11 April 2014 ~ 0 Comments

Construction Update | April 12-21

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4th Street between Market to Stevenson has been repaved and reopened to traffic.

During the next 10 days, Central Subway work will continue 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, scroll down or click on the links below. We also post construction, traffic detour and Muni impact information on our project Google Map.

Southern SoMa (Harrison to King/Berry): Potholing for utilities will continue next week on 4th Street between Bryant and King. A temporary walkway is in place around the construction zone. At the tunnel launch box on 4th Street between Harrison and Bryant, tunneling continues with both TBMs.

Northern SoMa (Market to Harrison): At 4th and Folsom, work to prepare for the Yerba Buena/Moscone Station continues. This will include demolishing the roadway within the construction zone to prepare to construct underground station walls at 4th and Folsom at night.

Union Square: Stockton Street between Ellis and Geary is closed to vehicular traffic and partial closure to vehicular traffic between Geary to Post to allow for construction of the Union Square/Market Street Station. Work is underway to excavate material before constructing station walls. Construction hours will be Monday to Friday from 7 a.m. to 11 p.m.

Chinatown: The contractor has started station wall construction within the future station site and on the adjacent section of Washington Street.

North Beach: Work will continue at 1455 Stockton and 1731-1741 Powell. Sewer, roadway and sidewalk restoration on Columbus and Union will continue and is expected to be completed by the end of April.

We appreciate your patience and support while we build this essential upgrade to San Francisco’s public transportation system.

-The Central Subway Team

04 April 2014 ~ 2 Comments

Construction Update | Apr. 05 – Apr. 14

In North Beach, we have poured the concrete floor of the tunnel boring machine retrieval shaft.

In North Beach, we have poured the concrete floor of the tunnel boring machine retrieval shaft.

During the next 10 days, Central Subway work will continue 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, scroll down or click this link. We also post construction, traffic detour and Muni impact information on our project Google Map.

Southern SoMa (Harrison to King/Berry): Potholing for utilities will continue next week on 4th Street between Bryant and King. A temporary walkway is in place around the construction zone. At the tunnel launch box on 4th Street between Harrison and Bryant, tunneling continues with both TBMs.

Northern SoMa (Market to Harrison): On 4th Street between Market and Stevenson, and 4th Street between Folsom and Harrison, roadway restoration work is now complete. At 4th and Folsom, work to prepare for the Yerba Buena/Moscone Station continues. This will include soil test drilling at 4th and Folsom at night, as well as demolishing the roadway within the construction zone to prepare to construct underground station walls. This work will be noisy.

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 to excavate material before constructing station walls. Construction hours will be Monday to Friday from 7 a.m. to 11 p.m.

Chinatown: The contractor will start station wall construction within the future station site and on the adjacent section of Washington Street.

North Beach: Work will continue at 1455 Stockton and 1731-1741 Powell. At 1731-1741 Powell, construction will pause this Saturday, April 5. Sewer, roadway and sidewalk restoration on Columbus and Union will continue next week and is expected to be completed by the end of April.

We appreciate your patience and support while we build this essential upgrade to San Francisco’s public transportation system.

-The Central Subway Team

28 March 2014 ~ 0 Comments

Construction Update | Mar. 29 – Apr. 07

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This device (left) is called a hydromill. It is now being used in Chinatown to help build underground station walls.

During the next 10 days, Central Subway work will continue 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, scroll down or click here. We also post construction, traffic detour and Muni impact information on our project Google Map.

Southern SoMa (Harrison to King/Berry): Potholing for utilities will continue next week on 4th Street between Bryant and King. A temporary walkway is in place around the construction zone. At the tunnel launch box on 4th Street between Harrison and Bryant, tunneling continues with both TBMs.

Northern SoMa (Market to Harrison): On 4th between Market and Stevenson and 4th Street between Folsom and Harrison, ground improvement work is now complete, and roadway restoration work is now underway. At 4th and Folsom, work to prepare for the Yerba Buena/Moscone Station continues. This will include soil test drilling at 4th and Folsom at night, as well as demolishing the roadway within the construction zone to prepare to construct underground station walls. This work will be noisy. Pavement restoration continues at the corner of 4th and Harrison Streets.

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 to excavate material before constructing station walls. Construction hours will be extended from 7 a.m. to 6 p.m.

Chinatown: The contractor will start station wall construction within the future station site and on the adjacent section of Washington Street.

North Beach: Work will continue at 1455 Stockton and 1731-1741 Powell. At 1731-1741 Powell, construction may be in progress  this Saturday from 7 a.m. to 5 p.m.  Sewer, roadway and sidewalk restoration on Columbus and Union will continue next week and is expected to be completed by the end of April.  This Saturday, March 29, construction will be in progress from 7 a.m. to 5 p.m.  Deliveries of concrete to the retrieval shaft is scheduled to begin at 3 a.m. on either April 1 or April 2.

We appreciate your patience and support while we build this essential upgrade to San Francisco’s public transportation system.

-The Central Subway Team

21 March 2014 ~ 0 Comments

Construction Update | Mar. 22 – 31

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At the corner of Ellis and Stockton, these machines are used to remove abandoned utilities.

During the next 10 days, Central Subway work will continue 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, scroll down or click here. We also post construction, traffic detour and Muni impact information on our project Google Map.

Southern SoMa (Harrison to King/Berry): Potholing for utilities will continue next week on 4th Street between Bryant and King. A temporary walkway is in place around the construction zone. At the tunnel launch box on 4th Street between Harrison and Bryant, tunneling continues with both TBMs.

Northern SoMa (Market to Harrison): On 4th between Market and Stevenson and 4th Street between Folsom and Harrison, ground improvement work is now complete, and roadway restoration work is now underway. At 4th and Folsom, work to prepare for the Yerba Buena/Moscone Station continues. This will include soil test drilling at 4th and Folsom at night, as well as demolishing the roadway within the construction zone to prepare to construct underground station walls. This work will be noisy.

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 to excavate material before constructing station walls. Construction hours will be extended from 7 a.m. to 6 p.m.

Chinatown: The contractor will start station wall construction within the future station site and on the adjacent section of Washington Street.

North Beach: Work will continue at 1455 Stockton and 1731-1741 Powell. At 1731-1741 Powell, construction may be in progress  this Saturday from 7 a.m. to 5 p.m.  Sewer, roadway and sidewalk restoration on Columbus and Union will continue next week and is expected to be completed by the end of April.  Trucks may arrive to deliver concrete on March 29 or 31st from 3 a.m. to 10 a.m.

We appreciate your patience and support while we build this essential upgrade to San Francisco’s public transportation system.

-The Central Subway Team

14 March 2014 ~ 0 Comments

Construction Update | Mar. 15 – 24

Looking south into the 4th Street tunnel boring machine launch box from the northbound tunnel.

During the next 10 days, Central Subway work will continue 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. We also post construction, traffic detour and Muni impact information on our project Google Map.

Southern SoMa (Harrison to King/Berry): Potholing for utilities will continue next week on 4th Street between Bryant and King. A temporary walkway is in place around the construction zone. At the tunnel launch box on 4th Street between Harrison and Bryant, tunneling continues with both TBMs.

Northern SoMa (Market to Harrison): On 4th between Market and Stevenson and 4th Street between Folsom and Harrison, ground improvement work is now complete, and roadway restoration work is now underway. At 4th and Folsom, work to prepare for the Yerba Buena/Moscone Station continues. This may include excavating a high-pressure water line at 4th and Folsom at night, as well as demolishing the roadway within the construction zone to prepare to construct underground station walls. This work will be noisy.

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 to construct shallow underground walls in preparation for the station construction.

Chinatown: The contractor will start station wall construction within the future station site and on the adjacent section of Washington Street.

North Beach: Work will continue at 1455 Stockton and 1731-1741 Powell. At 1731-1741 Powell, construction may be in progress on Saturdays from 7 a.m. to 5 p.m.  Sewer, roadway and sidewalk restoration on Columbus and Union will commence on Monday and is expected to be complete by the end of April.

We appreciate your patience and support while we build this essential upgrade to San Francisco’s public transportation system.

-The Central Subway Team

07 March 2014 ~ 0 Comments

Construction Update | Mar. 8 – Mar. 17

Forms for station wall preparatory work can be seen here being installed at the Union Square/Market Street work site.

Forms for station wall preparatory work can be seen here being installed at the Union Square/Market Street work site.

During the next 10 days, Central Subway work will continue 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, scroll down or click on the links below. We also post construction, traffic detour and Muni impact information on our project Google Map.

Southern SoMa (Harrison to King/Berry): Potholing for utilities will continue next week on 4th Street between Bryant and King. A temporary walkway is in place around the construction zone. At the tunnel launch box on 4th Street between Harrison and Bryant, tunneling continues with both TBMs.

Northern SoMa (Market to Harrison): On 4th between Market and Stevenson and 4th Street between Folsom and Harrison, ground improvement work is now complete. We have begun to restore the roadway. At 4th and Folsom, work to prepare for the Yerba Buena/Moscone Station continues. This may include excavating a high-pressure water line at 4th and Folsom at night, as well as demolishing the roadway within the construction zone to prepare to construct underground station walls. This work will be noisy.

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 to construct shallow underground walls in preparation for the station construction.

Chinatown: The contractor will start station wall construction within the future station site and on the adjacent section of Washington Street.

North Beach: Work will continue at 1455 Stockton and 1731-1741 Powell. At 1731-1741 Powell, construction may be in progress on Saturdays from 7 a.m. to 5 p.m.  Utility and roadway restoration on Columbus and Union.

We appreciate your patience and support while we build this essential upgrade to San Francisco’s public transportation system.

-The Central Subway Team

28 February 2014 ~ 1 Comment

Construction Update | Mar. 1 – Mar. 10

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At the Yerba Buena/Moscone Station site, the contractor is building test walls prior to station wall construction. Here, workers remove old streetlight footings.

During the next 10 days, Central Subway work will continue 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, scroll down or click on the links below. We also post construction, traffic detour and Muni impact information on our project Google Map.

Southern SoMa (Harrison to King/Berry): Potholing for utilities will continue next week on 4th Street between Bryant and King. A temporary walkway is in place around the construction zone. At the tunnel launch box on 4th Street between Harrison and Bryant, tunneling continues with both TBMs.

Northern SoMa (Market to Harrison): On 4th between Market and Stevenson and 4th Street between Folsom and Harrison, ground improvement work is now complete. We have begun to restore the roadway. At 4th and Folsom, work to prepare for the Yerba Buena/Moscone Station continues. This may include excavating a high-pressure water line at 4th and Folsom at night, as well as demolishing the roadway within the construction zone to prepare to construct underground station walls. This work will be noisy.

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 to construct shallow underground walls in preparation for the station construction.

Chinatown: Work to prepare for the Chinatown Station continues within the future station site and on the adjacent section of Washington Street. The contractor will start station wall construction.

North Beach: Work will continue at 1455 Stockton and 1731-1741 Powell. At 1731-1741 Powell, construction may be in progress on Saturdays from 7 a.m. to 5 p.m.  Utility and roadway restoration will occur in the coming weeks.

We appreciate your patience and support while we build this essential upgrade to San Francisco’s public transportation system.

-The Central Subway Team

 

 

21 February 2014 ~ 0 Comments

Construction Update | Feb. 22 – Mar. 03

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At the Yerba Buena/Moscone Station site, the contractor is building temporary underground test walls.

During the next 10 days, Central Subway work will continue 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, scroll down or click on the links below. We also post construction, traffic detour and Muni impact information on our project Google Map.

Southern SoMa (Harrison to King/Berry): Potholing for utilities will continue next week on 4th Street between Bryant and King. A temporary walkway is in place around the construction zone. At the tunnel launch box on 4th Street between Harrison and Bryant, tunneling continues with both TBMs.

Northern SoMa (Market to Harrison): On 4th Street between Market and Stevenson and between Folsom and Harrison, construction is now complete. The contractor is restoring the roadway. At 4th and Folsom, work to prepare for the Yerba Buena/Moscone Station continues. Work may include excavating a high-pressure water line at 4th and Folsom at night, as well as demolishing the roadway within the construction zone to prepare to construct underground station walls. This work will be noisy.

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 to construct shallow underground walls in preparation for the station construction.

Chinatown: Work to prepare for the Chinatown Station continues within the future station site and on the adjacent section of Washington Street. The contractor is constructing shallow underground walls within the perimeter of the construction site in preparation for the station construction.

North Beach: Work will continue at 1455 Stockton and 1731-1741 Powell. At 1731-1741 Powell, construction may be in progress on Saturdays from 7 a.m. to 5 p.m.

We appreciate your patience and support while we build this essential upgrade to San Francisco’s public transportation system.

-The Central Subway Team

14 February 2014 ~ 0 Comments

Construction Update | Feb. 15-24

 

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This retrieval shaft is currently being excavated in North Beach. It will be used to remove the two tunnel boring machines.

In observance of the Presidents Day Holiday, no Central Subway construction is planned for Southern SoMa (Bryant and King), Union Square/Market Street and Chinatown. Work will continue in Northern SoMa (Market and Harrison) and North Beach.

During the next 10 days, Central Subway work will continue 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, scroll down or click on the links below. We also post construction, traffic detour and Muni impact information on our project Google Map.

Southern SoMa (Harrison to King/Berry): Potholing for utilities will continue next week on 4th Street between Bryant and King. A temporary walkway is in place around the construction zone. At the tunnel launch box on 4th Street between Harrison and Bryant, tunneling continues with both TBMs.

Northern SoMa (Market to Harrison): On 4th between Market and Stevenson and 4th Street between Folsom and Harrison, construction is now complete. We will restore the roadway in the coming weeks. At 4th and Folsom, work to prepare for the Yerba Buena/Moscone Station continues. Work may include excavating a high-pressure water line at 4th and Folsom at night, as well as demolishing the roadway within the construction zone to prepare to construct underground station walls. This work will be noisy.

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 to construct shallow underground walls in preparation for the station construction.

Chinatown: Work to prepare for the Chinatown Station continues within the future station site and on the adjacent section of Washington Street. The contractor is constructing shallow underground walls within the perimeter of the construction site in preparation for the station construction.

North Beach: Work will continue at 1455 Stockton and 1731-1741 Powell. At 1731-1741 Powell, construction may be in progress on Saturdays from 7 a.m. to 5 p.m.

We appreciate your patience and support while we build this essential upgrade to San Francisco’s public transportation system.

-The Central Subway Team

07 February 2014 ~ 0 Comments

Construction Update | Feb. 8-17

TBM Big Alma crossed under Market Street and BART this week.

TBM Big Alma crossed under Market Street and BART this week.

During the next 10 days, Central Subway work will continue 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, scroll down or click on the links below. We also post construction, traffic detour and Muni impact information on our project Google Map.

Southern SoMa (Harrison to King/Berry): Potholing for utilities will continue next week on 4th Street between Bryant and King. On the eastern sidewalk on 4th Street between Bryant and Brannan, we will begin excavating a utility vault. A temporary walkway will be in place around the construction zone. At the tunnel launch box on 4th Street between Harrison and Bryant, tunneling continues with both TBMs.

Northern SoMa (Market to Harrison): On 4th between Market and Stevenson and 4th Street between Folsom and Harrison, construction is now complete. We will restore the roadway in the coming weeks. At 4th and Folsom, work to prepare for the Yerba Buena/Moscone Station continues. Work may include excavating a high-pressure water line at 4th and Folsom at night, as well as demolishing the roadway within the construction zone to prepare to construct underground station walls. This work will be noisy.

Union Square: Stockton Street between Ellis and Geary is closed to vehicular traffic to allow for construction of the Union Square/Market Street Station. On Stockton Street between Clay and Sutter, the contractor is performing ground improvement activities related to tunneling. Construction maybe in progress on Saturday and Sunday.

Chinatown: Work to prepare for the Chinatown Station continues within the future station site and on the adjacent section of Washington Street. The contractor is constructing shallow underground walls within the perimeter of the construction site in preparation for the station wall construction.

North Beach: Next week work will continue at Columbus & Union, 1455 Stockton and 1731-1741 Powell. At 1731-1741 Powell, construction may be in progress on Saturdays from 7 a.m. to 5 p.m.

We appreciate your patience and support while we build this essential upgrade to San Francisco’s public transportation system.

-The Central Subway Team