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Bay Bridge Demolition The 504 Lowering

In 1935, raising the five 504 Trusses on the Bay Bridge involved driving hundreds of piles into the Bay. Today, lowering those massive steel trusses on the old span is more environmentally friendly, without piles, but also more complex. Mark Jones explains why, in this video. Music contributions: Dark Standoff by Kevin MacLeod is licensed under a Creative Commons Attribution license (https://creativecommons.org/licenses/...) Source: http://incompetech.com/music/royalty-... Artist: http://incompetech.com/ Infinite Perspective by Kevin MacLeod is licensed under a Creative Commons Attribution license (https://creativecommons.org/licenses/...)