Archive | August, 2013

23 August 2013 ~ 7 Comments

Construction Update | Aug. 24-Sept. 2

This week crews dismantled the facade of the Pagoda Palace, a former movie theater in North Beach that stood vacant for 20 years. Next year we will remove the tunnel boring machines from the ground at this location. During the next 10 days, construction to prepare for tunneling will continue in SoMa and Union Square. […]

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16 August 2013 ~ 2 Comments

Construction Update | August 17-26

On Ellis Street, crews are drilling tubes into the earth underground. When the tunnel boring machines pass below, we will inject grout through the tubes, improving the ground. During the next 10 days, construction to prepare for tunneling will continue in SoMa and Union Square. In North Beach, demolition of the Pagoda Palace will continue. […]

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09 August 2013 ~ 0 Comments

Construction Update | August 10-19

Taken from a nearby roof, this photo shows our construction site at 4th and Folsom and the gas station that will be demolished to make way for the future Yerba Buena/Moscone Station. During the next 10 days, construction to prepare for tunneling will continue in SoMa and Union Square. In North Beach, demolition of the […]

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02 August 2013 ~ 1 Comment

Construction Update | August 3-12

This week we hosted members of the American Public Transportation Association on a tour of project sites, including the tunnel launch box. Here, Central Subway Deputy Program Manager Albert Hoe shows tunnel boring machine Big Alma to tour goers. During the next 10 days, construction to prepare for tunneling will continue in SoMa and Union Square. […]

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01 August 2013 ~ 1 Comment

Tunneling crews assemble Big Alma, the Central Subway’s second TBM

Late in the night last month, crews installed the cutter head of tunnel boring machine (TBM) Big Alma. The massive machine’s cylindrical shield was already in place below. Big Alma has arrived. The massive tunneling machine — the identical twin of recently launched Mom Chung — is now under assembly underground. Last month, tunneling crews […]

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