Construction of One World Trade Center
Date
2011-10-11
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Abstract
Description
In January 2008, two cranes were moved onto the site. Construction of the tower's concrete core, which began after the cranes arrived, reached street level by May 17. However, construction of the base was not finished until two years later, after which construction of the office floors began, and the first glass windows were subsequently installed; during 2010, floors were constructed at a rate of about one per week. An advanced "cocoon" scaffolding system was installed to protect workers from falling, and was the first such safety system installed on a steel structure in the city. The tower reached 52 floors and was over 600 feet tall by December 2010. The tower's steel frame was halfway complete by then,[but grew to 82 floors by the tenth anniversary of the September 11 attacks, at which time its concrete flooring had reached 72 floors and the glass cladding had reached 56 floors
Original file name Rebuilding 4.jpeg
Original file name Rebuilding 4.jpeg
Keywords
One World Trade Center, Freedom Tower, World Trade Center, Rebuilding the World Trade Center Site, Ground Zero Cross, 911, September 11 2001, St. Peter's Church, National September 11, Museum, Terror Attack, Attack, New York City, Manhattan, NYC, New York, NY, New York State, NYS, The Empire State, Financial Center, Never Forget
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