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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.

27 May 2016 ~ 0 Comments

Featured Photo – May 27

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Our offices have moved. We are now located near the portal to Chinatown, at the edge of Union Square.  Our new address is 530 Bush Street.

We can be contacted at central.subway@sfmta.com.

23 May 2016 ~ 0 Comments

Feature Photo – May 12

This week’s photos capture work taking place underground at 4th & Folsom. In the center of this image, an elevator carries workers and equipment to and from the underground work site.

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Workers assemble rebar cages for mezzanine floor beams by hand.

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A closer view of the rebar work. To the right, a worker signals fellow team members as they work in the station box.

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

 

20 May 2016 ~ 0 Comments

Project Advancement | May 20 – May 30

Workers install a high pressure water line at 4th Street and Howard Street

Workers install a high pressure water line at 4th Street and Howard Street

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 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

16 May 2016 ~ 0 Comments

Featured Photo – May 5

Work along 4th Street in the SoMa district includes lots of infrastructure preparation. Here, sections of pipe are unloaded from a truck north of Townsend and stacked for installation.

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New foundations for overhead wires are being installed along the surface portion of the alignment from Townsend to Bryant.

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Utility installation and upgrade work continues at the intersection of 4th and Townsend.

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

13 May 2016 ~ 0 Comments

Project Advancement | May 13 to 23

 

After demolishing a portion of this wall, the former southeast corner of the Union Square Garage is connected to the north concourse

After demolishing a portion of this wall, the former southeast corner of the Union Square Garage is connected to the north concourse

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 is progressing in the Union Square|Market Street station. Crews have broken through part of a wall to connect the north concourse to the former southeast corner of the Union Square Garage. Work is also being done to restore a portion of the sidewalk and curb at the northeast corner of Stockton Street and Geary Street. On O’Farrell Street, compensation grouting is being performed in preparation of roof deck panel installation. Excavation continues both at street level and below the ground.

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

09 May 2016 ~ 0 Comments

Couplet Composers Wanted!

Example of a Chinese Couplet

            Example of a Chinese Couplet

The Chinese Community Development Center (CCDC) is hosting a couplet contest. The winning couplet will become a permanent part of the Central Subway Chinatown Plaza. Passengers will see the couplet prominently installed at the station plaza with dimension of 9’ by 11.5’ inches high.

Rendering of the future Chinatown Plaza

 Rendering of the future Chinatown Plaza

The contest kicked off on Monday, April 25 at the Chinatown Community Center. John Funghi, Central Subway Program Director, provided an update on construction, the Chinatown Plaza and thanked the community for their cooperation. Francis So of the Chinese Chamber of Commerce discussed the 20 years of advocacy behind the Central Subway Project and Chinatown Plaza.

The Chinese couplet is a Chinese poem comprised of two lines that adhere to certain rules. Both lines must have the same number of Chinese characters and corresponding characters with the same lexical category. The meaning of the two lines needs to be related, with each pair of corresponding characters having related definitions. Couplets are written in calligraphy on red paper or carved on wooden uprights. They frequently adorn buildings.

Here are some examples of couplet and their English translations:

書山有路勤爲徑  The mountain of books has one way and hard work serves as the path

學海無涯苦作舟  The sea of learning has no end and effort makes the boat

To enter the contest, the poet must compose an original seven character couplet on the official entry form. The couplet’s theme should relate to either transportation or Chinese history and culture. The entry form can be mailed or hand delivered to the CCDC Program Office at 663 Clay Street by 4p.m. on Friday May 20. There is no entry fee and only one entry per person. The contest is focused on the couplet prose, a professional calligrapher will produce the calligraphy. To ensure a fair selection, the couplets will be judged by a community panel. In addition to having the couplet a permanent part of Chinatown Plaza, the winner will receive a $150 dining gift certificate. Contestants with questions about the contest should contact Jerri Diep, CCDC at 415-984-1461.

Good luck to all contestants!

 

 

06 May 2016 ~ 0 Comments

Project Advancement |May 6 -16

Sections of pipe are stacked for installation on 4th Street north of Townsend

Sections of pipe are stacked for installation on 4th Street north of Townsend

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 the Yerba Buena|Moscone station continues. Construction of the mezzanine floor is progressing and crews are building concrete forms for the final section. Excavation continues in the headhouse. Workers are installing a water line at 4th Street and Howard.

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

29 April 2016 ~ 0 Comments

Project Advancement | April 29 – May 9

Restoration of the sidewalk, curb and street at Stockton and Geary Street

Restoration of the sidewalk, curb and street at Stockton and Geary Street

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 moves forward for Chinatown. Sewer slip lining is near completion. Excavation of the station continues. Other activities include north access shaft construction and utility relocation.

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

28 April 2016 ~ 0 Comments

Featured Photos – April 28

Construction is in full swing both above ground and below on Stockton between Maiden Lane and Ellis Street. In this photo, concrete for a new curb has been poured at the northeast corner of Stockton and Geary streets.

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Waterproofing vinyl and a slab of concrete now cover a new section of roof deck on the north side of the O’Farrell and Stockton intersection.

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Underground, workers drill inside the station box between Geary and O’Farrell streets.

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

 

26 April 2016 ~ 0 Comments

2016 Station Construction Update

Here’s what you can expect to see as construction progresses along the Central Subway alignment.

 

4th and Brannan Station

Construction for the 4th and Brannan Station is progressing, and activity along the surface portion of the alignment will continue on 4th Street from Bryant to King. Utility work is expected to continue through 2016. The crew is working on a high pressure auxiliary water supply system on 4th between Brannan and Townsend. Two sewer lines will be installed on the east side of 4th and another will be reconstructed between Townsend and King.

To power the trains, an Overhead Catenary System (OCS) needs to be installed between Harrison Street and King Street. Installation of the OCS has three components: foundations, poles and wires. The foundations currently being installed are the bases for the poles. Once these are constructed, the poles will be mounted later in the year. The last step is the connection of electrical wires. These wires provide power to Muni’s light rail vehicles. The OCS work is expected to be completed in early 2017.

In the fourth quarter, crews are expected to begin trackwork and infrastructure installation in the tunnel.

Utility work continues on 4th Street

Utility work continues on 4th Street

Yerba Buena|Moscone Station

At Yerba Buena|Moscone, crews will be focusing on building the interior levels of the station box. The contractor will continue to excavate downward inside the station box from the mezzanine level to the concourse level. In the headhouse, crews will complete excavation and construct internal walls upward through the concourse, mezzanine and surface levels.

Most of the construction activity for the station is conducted underground. The mezzanine is under construction and is expected to be completed by June. Installation of steel supports is underway in the station box and the headhouse. Construction of the station box walls and flooring is anticipated to begin in the fourth quarter.

By December, it is expected that all four travel lanes will be open on 4th Street between Howard Street and Folsom.

Workers clean slurry walls before building internal walls

Workers clean slurry walls before building internal walls

Union Square|Market Street Station

For the Union Square|Market Street site, excavation is ongoing. Beneath Stockton Street between Geary and O’Farrell, excavation of the station box progresses. Excavation is being performed on O’Farrell Street  in order to install the final roof deck panels.

The demolition and restoration of the southeast corner of the Union Square Garage is underway. This area will become the north station entrance at Geary and Stockton. A portion of the garage wall will be demolished which will connect the entrance with the north concourse of the station.

Jet and compensation grouting are being performed on Stockton Street from Maiden Lane to Ellis Street. Jet grouting limits ground water from seeping into the station. Compensation grouting provides stability to the foundations of surrounding structures of the station.

Utility work continues at Geary Street and Maiden Lane.

Roof deck panels are being installed on Stockton Street and Geary Street

Roof deck panels are being installed on Stockton Street and Geary Street

 

Chinatown Station

In Chinatown, crews are excavating the north access shaft beneath Stockton Street between Washington and Jackson. This shaft will become an emergency exit stairwell for the station. Temporary steel supports have been installed in the headhouse to prepare for the next phase of excavation.

At the arched entrance way, crews are injecting grout to harden the soil where excavation will begin. This work reinforces the structure of the station. After the entrance way is excavated, “shotcrete,” a fibrous concrete material, will be sprayed onto the walls for stability. Excavation, waterproofing and rebar installation will continue through 2016.

A view of the archway entrance to the future station cavern

A view of the archway entrance to the future station cavern