Steel in the News
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Posted by Tasha Weiss on January 18, 2013 at 11:37 AM.
Massive underground construction work is underway at the Transbay Transit Center site in downtown San Francisco.
A recent article published in the San Francisco Chronicle shows a worker welding the struts about 65 ft under ground during excavation to build the new Transbay Terminal site. Rows of enormous hollow steel sections (HSS) are layered above at 15-ft intervals, each horizontal section braced between concrete walls that reach 110 ft below sea level.
In order to make way for the new transportation hub — which will be about a quarter-mile long and 70 ft high — the Transbay Joint Powers Authority (TJPA) needed to demolish the former Transbay Terminal facility and bus ramps and relocate utilities in the project area. Demolition activities are complete and the foundation work will continue through early 2014, after which the construction of the aboveground superstructure will commence.
Known as the “Grand Central Station of the West,” the Transbay Transit Center will connect eight Bay Area counties and 11 transit systems, including future high-speed rail. In addition, a new neighborhood with homes, offices, parks and shops will be built surrounding the new Transit Center. More than 125,000 jobs will be created by the project.
The $4.2 billion project is scheduled to be completed in the fall of 2017.
You can learn more about the Transbay Transit Center at http://transbaycenter.org. The project website features photos, construction updates and live webcams, as well as interactive tours and videos. (Click on the left image to link directly to an informational video about the project.)