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how long did it take to clean up the remains of the twin towers

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asked Sep 13, 2013 in 2000 to present by anonymous
   

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The cleanup of the site involved round-the-clock operations, many contractors and subcontractors, and cost hundreds of millions of dollars. The demolition of the surrounding damaged buildings continued even as new construction proceeded on the World Trade Center's replacement, One World Trade Center, which was structurally completed on May 10, 2013, when the final component of the spire was installed atop the skyscraper. Only 7 World Trade Center has been fully replaced as of 2013.Refer this link to know the whole story: http://en.wikipedia.org/wiki/Collapse_of_the_World_Trade_Center
answered Nov 15, 2013 by answerwiz Inquisitive Expert (94,860 points)

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