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Updated: 1 hour 21 min ago

Project Advancement | April 29 – May 9

Fri, 04/29/2016 - 14:32
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

Categories: Construction Updates

2016 Station Construction Update

Tue, 04/26/2016 - 13:14

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

 

 

Categories: Construction Updates

Project Advancement | April 22 – May 2

Fri, 04/22/2016 - 16:11
Utility work is performed in a trench on 4th Street

Utility work is performed in a trench on 4th 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 of the Union Square|Market Street station is progressing. The demolition of the southeast corner of the Union Square Garage is nearly complete. Remodeling of the north station entrance is underway. Jet and compensation grouting are being performed on Stockton Street from Geary Street to Ellis Street. Roof deck panel installation is progressing on O’Farrell Street. Excavation continues at street level and below.

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

Categories: Construction Updates

Project Advancement I April 15 – April 25

Fri, 04/15/2016 - 16:27
Construction of the Yerba Buena|Moscone Station mezzanine floor is underway.

Construction of the Yerba Buena|Moscone Station mezzanine floor is underway

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.

Installation of 36” and 48” sewer lines on the east side of 4th Street between Bryant Street and King Street begins on Monday, April 18. Hours of construction are 7a.m. to 4p.m. Two lanes of traffic will be open on the west side of 4th Street. Parking will be restricted on both sides of 4th Street.

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

Categories: Construction Updates

Project Advancement | April 8 – 18

Fri, 04/08/2016 - 16:24
A bulldozer excavates the Chinatown headhouse

A bulldozer excavates the Chinatown headhouse

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.

Night work to install a high pressure waterline at the intersection of 4th Street and Townsend Street begins Monday, April 11 through Friday, April 29. Hours of construction are 7p.m. to 5a.m. Other activities include utility upgrades, overhead catenary pole foundation and the installation of an auxiliary water supply system.

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

Categories: Construction Updates

Project Advancement | April 1 – April 11

Fri, 04/01/2016 - 16:41
Demolition for the north concourse of the Union Square|Market Street Station continues

Demolition for the north concourse of the Union Square|Market Street Station continues

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.

As construction progresses, traffic patterns will vary. Minor traffic changes have been implemented on O’Farrell Street and 4th Street. Motorists are advised to exercise caution while driving in these areas.

As construction progresses, traffic patterns will vary. Minor traffic changes on O’Farrell and 4th Street. Motorists are advised to exercise caution in the area.

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

Categories: Construction Updates

Project Advancement |March 25 – April 4

Fri, 03/25/2016 - 16:53
Workers excavate on 4th Street and Brannan Street

Workers excavate on 4th Street and Brannan 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 on the Union Square|Market Street station is progressing. On the north side of O’Farrell Street, crews are installing the final sections of roof deck panels. To prepare for north station entrance construction, the southeast corner of the Union Square Garage is being demolished. Below the street, excavation for the future station platform is underway.

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

Categories: Construction Updates

Project Advancement | March 18 – 28

Fri, 03/18/2016 - 16:17
Temporary beams support the Chinatown headhouse

Temporary beams support the Chinatown headhouse

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 to construct the surface station at 4th Street and Brannan Street is progressing. Night work to build a 36’ sewer at the intersection of 4th Street and Townsend Street is anticipated to be completed by the end of the month. Crews are installing utilities, a high pressure water line and overhead catenary system pole foundations.

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

Categories: Construction Updates

Project Advancement | March 11 – 21

Fri, 03/11/2016 - 16:20
Steel beams are lowered into the Yerba Buena|Moscone headhouse

Steel beams are lowered into the Yerba Buena|Moscone headhouse

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.

Crews have begun building the station platform, ceiling and the mezzanine level floor at the Yerba Buena|Moscone Station. Temporary steel beams installed in the headhouse to prepare for further excavation. Utility work will be conducted every evening through Saturday, March 19 at Folsom and 4th Street. 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

 

Categories: Construction Updates

Project Advancement | March 4 – March 14

Fri, 03/04/2016 - 16:34
Demolition of the southeast corner of the Union Square Garage continues

Demolition of the southeast corner of the Union Square Garage continues

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 for Union Square|Market Street is underway. Crews are demolishing the southeast corner of the Union Garage in preparation for construction of the north entrance on Geary Street and Stockton Street.  Other activities include compensation and jet grouting, roof deck installation 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

Categories: Construction Updates

Project Advancement | February 26 – March 7

Fri, 02/26/2016 - 16:52
Steel supports are installed for the roof deck of the station box on Stockton Street

Steel supports are installed for the roof deck of the station box on Stockton 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.

Starting Monday night, February 29 through Monday, March 7, the contractor will be performing night work to pothole at the intersection of Stockton Street and Washington Street. Hours of construction are 10p.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.

Categories: Construction Updates

Project Advancement | February 19 – 29

Fri, 02/19/2016 - 15:09
Southbound tunnel at the Yerba Buena|Moscone Station, 100 feet beneath 4th Street

Southbound tunnel at the Yerba Buena|Moscone Station, 100 feet beneath 4th 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 of the Chinatown station is progressing. Ongoing activities include excavation of the headhouse, utility relocation, sewer upgrades and construction of the north access shaft.

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

Categories: Construction Updates

Project Advancement | February 12 – 22

Fri, 02/12/2016 - 16:09
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

Categories: Construction Updates

Project Advancement | February 5 – 15

Wed, 02/10/2016 - 14:02
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

Categories: Construction Updates

Project Advancement | January 29 – February 8

Wed, 02/10/2016 - 13:35
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

Categories: Construction Updates

Project Advancement | January 22 – February 1

Fri, 02/05/2016 - 15:28
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

Categories: Construction Updates

Project Advancement | January 15 – 25

Fri, 02/05/2016 - 12:17
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

Categories: Construction Updates

Project Advancement | January 8 – January 18

Fri, 01/08/2016 - 16:58

 

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.

Categories: Construction Updates

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

Thu, 12/31/2015 - 15:45

 

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

Categories: Construction Updates

Project Advancement | December 18 – 28

Fri, 12/18/2015 - 16:01
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

Categories: Construction Updates

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