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Updated: 2 hours 35 min ago

Construction Update | May 10 – May. 19

Fri, 05/09/2014 - 17:28
At the intersection of Ellis and Stockton, the tunneling contractor has restored this work zone and handed it over to the station contractor.

At the intersection of Ellis and Stockton, the tunneling contractor has restored this work zone and handed it over to the station contractor.

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. Three lanes of the I-80 off-ramp at 4th and Bryant may be closed Tuesday and Wednesday from 12 a.m. to 5 a.m. One lane of the I-80 off-ramp at 4th and Bryant may be closed Monday from 10 a.m. to 3 p.m.

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. At 4th and Jessie, crews are potholing for utilities and will be installing a manhole in the next few weeks.

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 3nd quarter of 2014.

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

Categories: Construction Updates

Construction Update | May 3 – May 12

Fri, 05/02/2014 - 18:09
The Yerba Buena/Moscone Station work site, as seen from the rooftop of a nearby building.

The Yerba Buena/Moscone Station work site, as seen from the rooftop of a nearby building.

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)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 2nd quarter of 2014.

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

Categories: Construction Updates

Construction Update | Apr. 26 – May 5

Fri, 04/25/2014 - 17:57
In North Beach, we have constructed this shaft, which will be used to remove the two tunnel boring machines from the ground when they arrive in the coming months.

In North Beach, we have constructed this shaft, which will be used to remove the two tunnel boring machines from the ground when they arrive in the coming months.

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)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 2nd quarter of 2014.

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

Categories: Construction Updates

Construction Update | Apr. 19 – Apr. 28

Fri, 04/18/2014 - 17:33
Crews demolishing and removing underground obstacles using rotary drill rigs and steel casings to keep the soil from caving in.

Crews demolishing and removing underground obstacles using rotary drill rigs and steel casings to keep the soil from caving in.

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)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.

Categories: Construction Updates

Construction Update | April 12-21

Fri, 04/11/2014 - 17:39
140409_1039_Stevenson

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

Categories: Construction Updates

Construction Update | Apr. 05 – Apr. 14

Fri, 04/04/2014 - 17:24
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

Categories: Construction Updates

Construction Update | Mar. 29 – Apr. 07

Fri, 03/28/2014 - 18:06
140318_1100_Chinatown

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

Categories: Construction Updates

Construction Update | Mar. 22 – 31

Fri, 03/21/2014 - 17:54
140318_1000_UMS

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

Categories: Construction Updates

Construction Update | Mar. 15 – 24

Fri, 03/14/2014 - 17:18

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

Categories: Construction Updates

Construction Update | Mar. 8 – Mar. 17

Fri, 03/07/2014 - 18:11
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

Categories: Construction Updates

Construction Update | Mar. 1 – Mar. 10

Fri, 02/28/2014 - 16:54
140225_1079_YBM

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

 

 

Categories: Construction Updates

Construction Update | Feb. 22 – Mar. 03

Fri, 02/21/2014 - 16:48
140220_1127_YBM

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

Categories: Construction Updates

Construction Update | Feb. 15-24

Fri, 02/14/2014 - 17:59

 

140211_1011_Pagoda

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

Categories: Construction Updates

Construction Update | Feb. 8-17

Fri, 02/07/2014 - 17:50
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

Categories: Construction Updates

Construction Update | Feb. 1-10

Fri, 01/31/2014 - 17:03

140130_1036_NB_Tunnel

TBM Big Alma is crossing under Market Street and BART this week. This photo shows the back of the TBM as it approaches this key juncture.

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

Southern SoMa (Harrison to King/Berry): This week we began potholing for utilities on the east side of 4th Street between Bryant and Bluxome. Work will continue in this area next week. At the tunnel launch box on 4th Street between Harrison and Bryant, tunneling continues with both TBMs.

Northern SoMa (Market to Harrison): Construction will continue on 4th between Market and Stevenson as the second TBM passes through the area. On 4th Street between Folsom and Harrison, the road expected to reopen in February. At 4th and Folsom, work to prepare for the Yerba Buena/Moscone Station continues. Work may include 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 Ellis Street, crews may work through the weekend as the second TBM crosses under Market Street. On Stockton Street, crews will work on Saturday mobilizing equipment to the construction zone.

Chinatown: Work to prepare for the Chinatown Station continues within the future station site and on the adjacent section of Washington Street.

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.

Categories: Construction Updates

Construction Update | Jan. 25-Feb. 3

Fri, 01/24/2014 - 16:48

Newly-installed pedestrian walkway barriers on Stockton, at Ellis.On Stockton Street, the contractor has installed these barricades to protect pedestrians while construction of the Union Square/Market Street Station proceeds in the roadway.

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

Southern SoMa (Harrison to King/Berry): We plan to begin potholing for utilities on 4th Street between Bryant and King next week, on Monday, Jan. 27. Potholing will commence on the east side of 4th Street between Bryant and Bluxome, proceeding at other locations along the block over the coming months. More details are in the Southern SoMa section. At the tunnel launch box on 4th Street between Harrison and Bryant, tunneling continues with both TBMs.

Northern SoMa (Market to Harrison): Construction will continue on 4th between Market and Stevenson next week and this weekend (Jan. 25-26) as the second TBM passes through the area. On 4th Street between Folsom and Harrison, the road expected to reopen in February. At 4th and Folsom, work to prepare for the Yerba Buena/Moscone Station continues. Work may include 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 Ellis Street, crews may work through the weekend to prepare for the crossing of the second TBM under Market Street. On Stockton Street, crews will work on Saturday installing barricades around the construction zone.

Chinatown: Work to prepare for the Chinatown Station continues within the future station site and on the adjacent section of Washington Street.

North Beach: Work on Columbus Avenue at Union Street will continue next week, Monday to Friday. Work will continue at 1455 Stockton and 1731-1741 Powell, within the property lines. 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.

Categories: Construction Updates

Construction Update | Jan. 18-27

Fri, 01/17/2014 - 16:29

140114_1104_NB_TunnelTunneling is proceeding beneath 4th Street with TBM Big Alma. This TBM is expected to pass beneath Market Street around the end of January.

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

Southern SoMa (Harrison to King/Berry): We plan to begin potholing for utilities on 4th Street between Bryant and King the week of Jan. 20. Potholing will commence on the east side of 4th Street between Bryant and Bluxome, proceeding at other locations along the block over the coming months. More details are in the Southern SoMa section. At the tunnel launch box on 4th Street between Harrison and Bryant, tunneling continues with both TBMs.

Northern SoMa (Market to Harrison): Construction is planned to resume on 4th between Market and Stevenson late next week, when the second TBM passes through the area. We plan to begin restoring 4th Street between Folsom and Harrison during the next two weeks, with the road expected to reopen in February. At 4th and Folsom, work to prepare for the Yerba Buena/Moscone Station continues. Work may include demolishing the roadway within the construction zone to prepare to construct underground station walls.

Union Square: Stockton Street between Ellis and Geary is closed to vehicular traffic to allow for construction of the Union Square/Market Street Station. Stockton between Ellis and O’Farrell will close next week as crews continue to install decorative barricades around the construction zone.

Chinatown: Work to prepare for the Chinatown Station continues within the future station site and on the adjacent section of Washington Street. Construction will be in progress this Saturday, January 18, within the station construction zone.

North Beach: Work on Columbus Avenue at Union Street is planned to start next week, continuing for approximately one month. More details in the North Beach section. Work will continue at 1455 Stockton and 1731-1741 Powell, within the property lines.

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

Categories: Construction Updates

Construction Update | Jan. 11-20

Fri, 01/10/2014 - 16:38

140108_1008_UMSThis week, we closed a block of Stockton Street to prepare to build the Union Square/Market Street Station. Crews are installing decorative barricades around the construction zone.

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

Southern SoMa (Harrison to King/Berry): We expect to begin potholing for utilities on 4th Street between Bryant and King the week of Jan. 20. At the tunnel launch box on 4th Street between Harrison and Bryant, tunneling continues with both TBMs.

Northern SoMa (Market to Harrison): We plan to begin restoring 4th Street between Folsom and Harrison during the next two weeks. Until then, the traffic pattern may change to allow for underground sewer surveys. At 4th and Folsom, work to prepare for the Yerba Buena/Moscone Station continues. Work may include demolishing the roadway within the construction zone to prepare to construct underground station walls.

Union Square: Stockton Street between O’Farrell and Geary is closed to vehicular traffic to allow for construction of the Union Square/Market Street Station. Stockton between Ellis and O’Farrell may close next week as crews continue to install decorative barricades around the construction zone.

Chinatown: Work to prepare for the Chinatown Station continues within the future station site and on the adjacent section of Washington Street. On Jackson Street adjacent to Stockton Street, the contractor may be performing underground borings during the day.

North Beach: Near the intersection of Columbus Avenue and Stockton Street, crews will be performing underground sewer work for approximately one month, starting next week. This work does not involve excavation. The southbound bus stop on Stockton Street at Columbus will be relocated to Stockton and Vallejo during work hours (Monday to Friday, 9 a.m. to 3 p.m.). See the North Beach section for more details. Work on Columbus Avenue at Union Street is currently on hold. We will provide additional details about this work before it recommences. Work will continue at 1455 Stockton and 1731-1741 Powell, within the property lines.

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

Categories: Construction Updates

Construction Update | January 4-13, 2014

Fri, 01/03/2014 - 11:58
131219_1009_Pagoda

At 1731-1741 Powell, we are constructing a retrieval shaft to remove two tunnel boring machines from the ground when tunneling is finished.

Next week traffic modifications on Stockton between Geary and Ellis streets near Union Square will recommence to accommodate construction of the Central Subway Union Square/Market Street station.

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): We expect to begin potholing for utilities on 4th Street between Bryant and King in mid-January. At the tunnel launch box on 4th Street between Harrison and Bryant, tunneling continues with both TBMs.

Northern SoMa (Market to Harrison): We plan to begin restoring 4th Street between Folsom and Harrison during the next two weeks. Until then, the traffic pattern may change to allow for underground sewer surveys. At 4th and Folsom, work to prepare for the Yerba Buena/Moscone Station continues. Work may include demolishing the roadway within the construction zone to prepare to construct underground station walls.

Union Square: Next week, Stockton Street between Ellis and Geary will be closed to vehicular traffic to allow for construction of the Union Square/Market Street Station. The construction zone on Ellis Street will remain in place.

Chinatown: Work to prepare for the Chinatown Station continues within the future station site and on the adjacent section of Washington Street. On Jackson Street adjacent to Stockton Street, the contractor may be performing underground borings some nights next week.

North Beach: Work on Columbus Avenue at Union Street may resume next week. Work will continue at 1455 Stockton and 1731-1741 Powell, within the property lines.

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

-The Central Subway Team

 

Categories: Construction Updates

Construction Update | Dec. 21-Jan. 6

Fri, 12/20/2013 - 15:59

131219_1025_GreenShaft

In a parking lot at Stockton and Green, crews have built this underground shaft. From it, we will improve and stabilize ground conditions beneath Columbus Avenue during tunneling.

Due to the upcoming holidays, this update covers the next two weeks of Central Subway work. There will be no update next Friday, Dec. 27. Happy holidays from the Central Subway team!

During the next 17 days, Central Subway work will continue 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. We also post construction, traffic detour and Muni impact information on our project Google Map.

In honor of Christmas and New Year’s Day, no construction will take place on Dec. 25 or Jan. 1. Starting in the new year, work will recommence on Columbus Avenue in North Beach and on Stockton Street in Union Square.

Southern SoMa (Harrison to King/Berry): We now expect to begin potholing for utilities on 4th Street between Bryant and King in January. At the tunnel launch box on 4th Street between Harrison and Bryant, tunneling continues with both TBMs.

Northern SoMa (Market to Harrison): We plan to begin restoring 4th Street between Folsom and Harrison during the next two weeks. Until then, the traffic pattern may change to allow for underground sewer surveys. At 4th and Folsom, work to prepare for the Yerba Buena/Moscone Station continues. Work may include demolishing the roadway within the construction zone to prepare to construct underground station walls.

Union Square: Construction is now paused on Stockton Street, resuming in January. Stockton Street between Ellis and Geary is tentatively planned to close to vehicle traffic on Thursday, Jan. 2, to allow for construction of the Union Square/Market Street Station. The construction zone on Ellis Street will remain in place.

Chinatown: Work to prepare for the Chinatown Station continues within the future station site and on the adjacent section of Washington Street.

North Beach: On Columbus Avenue at Union Street, construction is planned to resume Thursday, Jan. 2. Work will continue at 1455 Stockton and 1731-1741 Powell, within the property lines. No construction is planned at 1731-1741 Powell from Christmas to New Year’s Day.

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

Categories: Construction Updates

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