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2013 Big Dig, For The Transbay Center

Huge Steel Pipes Prevent Wall Collapse
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Huge steel pipes were welded to the vertical side supports that prevented wall collapse. Note the work lights near the highway cones on the left.


Big Dig For The Transbay Center external link   •  Fremont Street between Howard and Mission external link   •  San Francisco, California   •  (Photo posted Sunday 24 February 2013)   •  (Photo taken 16:54:03 Saturday 23 February 2013)   •  © 2013 Bryan Costales Creative Commons Attribution-NonCommercial License #B13_0288
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Elevated Platform And Street
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An elevated platform was supported by steel stilts in the center. On this platform were two cranes used to haul up dirt from the hole. Notice busy First Street passing over the hole midway.


Big Dig For The Transbay Center external link   •  Fremont Street between Howard and Mission external link   •  San Francisco, California   •  (Photo posted Sunday 24 February 2013)   •  (Photo taken 16:54:14 Saturday 23 February 2013)   •  © 2013 Bryan Costales Creative Commons Attribution-NonCommercial License #B13_0289
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Backhoe On Central Platform
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A backhoe stood next to a crane on the platform on stilts that ran down the center of the dig.


Big Dig For The Transbay Center external link   •  Fremont Street between Howard and Mission external link   •  San Francisco, California   •  (Photo posted Sunday 24 February 2013)   •  (Photo taken 16:54:18 Saturday 23 February 2013)   •  © 2013 Bryan Costales Creative Commons Attribution-NonCommercial License #B13_0290
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The Dig Below The Platform
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The dig as visible mid-block between Fremont and First Streets. Notice how much deeper it was in the lower left of this image.


Big Dig For The Transbay Center external link   •  Fremont Street between Howard and Mission external link   •  San Francisco, California   •  (Photo posted Sunday 24 February 2013)   •  (Photo taken 16:54:42 Saturday 23 February 2013)   •  © 2013 Bryan Costales Creative Commons Attribution-NonCommercial License #B13_0291
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Crane Outliers To The Central Platform
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There were two crane outliers to the main central island on stilts in the center of the dig. Also note the red porta-potty in the center of this shot.


Big Dig For The Transbay Center external link   •  First Street between Howard and Mission external link   •  San Francisco, California   •  (Photo posted Sunday 24 February 2013)   •  (Photo taken 16:56:16 Saturday 23 February 2013)   •  © 2013 Bryan Costales Creative Commons Attribution-NonCommercial License #B13_0294
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A Generator Far Below
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A generator could be seen far below at the bottom of the dig as it appeared this day.


Big Dig For The Transbay Center external link   •  First Street between Howard and Mission external link   •  San Francisco, California   •  (Photo posted Sunday 24 February 2013)   •  (Photo taken 16:56:28 Saturday 23 February 2013)   •  © 2013 Bryan Costales Creative Commons Attribution-NonCommercial License #B13_0295
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A Backhoe Faced The Street
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A backhoe parked on the central platform near to First Street. Note the seat in the backhoe cab to give you a sense of the scale based on the understood size of a seated man.


Big Dig For The Transbay Center external link   •  First Street between Howard and Mission external link   •  San Francisco, California   •  (Photo posted Sunday 24 February 2013)   •  (Photo taken 16:57:08 Saturday 23 February 2013)   •  © 2013 Bryan Costales Creative Commons Attribution-NonCommercial License #B13_0297
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A Depth Gauge Was Mounted On The Wall
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A yellow depth gauge was mounted on the wall across from Minna Street. It was a little too far away to read clearly.


Big Dig For The Transbay Center external link   •  Minna between First and Second Streets external link   •  San Francisco, California   •  (Photo posted Sunday 24 February 2013)   •  (Photo taken 16:59:07 Saturday 23 February 2013)   •  © 2013 Bryan Costales Creative Commons Attribution-NonCommercial License #B13_0298
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The View At Minna Near Second
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A hole in the fence allowed this dramatic overview of the project as seen from Minna Street near to Second Street.


Big Dig For The Transbay Center external link   •  Minna between First and Second Streets external link   •  San Francisco, California   •  (Photo posted Sunday 24 February 2013)   •  (Photo taken 17:00:03 Saturday 23 February 2013)   •  © 2013 Bryan Costales Creative Commons Attribution-NonCommercial License #B13_0299
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