The area involved in the construction of the World Trade Centre covered around 12 million square feet, enough to accommodate 7 different buildings. When the works were completed, the total cost would be more than 900 million dollars. The works were assigned to the port authority of New York and New Jersey for a project that, overall, would cost around 330 million dollars, an exorbitant amount for the nineteen sixties. Yamasaki’s initial project included the construction of two large twin towers but, originally, they were only intended to be 80 stories tall. In 1962, Minoru Yamasaki was chosen as the lead architect, with the support of Emery Roth and Sons as associate architects. Only in the sixties, however, did the idea take shape through the creation of the Lower Manhattan Association, founded by David Rockefeller. New York’s World Trade Center : its history until 2001īack in the early nineteenth forties, at the height of the Second World War, consideration started to be given to a World Trade Center in New York. ![]() Where the Twin Towers once stood, the famous One World Trade Center skyscraper was built, the tallest skyscraper in the city and, indeed, the western hemisphere. After being completely razed to the ground in the subsequent months, the World Trade Center has come back to life, with the construction of five new skyscrapers, a memorial to the victims of the attacks and an impressive transport terminal. The World Trade Centre of New York City, located in the southern part of Manhattan Island, was the target of the worst terrorist attack in history: on 11 September 2001, the eyes of the entire world were turned to the World Trade Center and, in particular, the Twin Towers, struck one after the other by two Boeing 767 aeroplanes. ![]() Through carefully devising solutions for affected thoroughfares and transit facilities, coordinating with teams on adjacent projects and efficiently managing the various trades and their nearly 2,000 workers, AECOM Tishman’s diligent work on this national icon led to its successful completion – all while the world watched.In the history of the World Trade Center, as is well-known, there is a before and an after. One World Trade Center has won numerous awards, including a 2015 “Best of the Best” award in the Office/Retail/Mixed-Use category from Engineering News-Record. This enabled each subcontractor to add their components to the models as they were created in direct collaboration with the other subcontractors. We brought together all of the architects, engineers and subcontractors - including electrical, plumbing, fire and life safety, concrete, and others - into one centralized Building Information Modeling command center located in the project field office at 7 WTC. ![]() This was the first cocoon on a hybrid steel-and-concrete building. The cocoon enveloped 16 floors and rose with the building to protect initial floor trades: steel, concrete and spray fireproofing. We implemented an innovative safety cocoon system, resulting in zero total incidents of significance on the project. As the builder of the original Twin Towers in 1973, AECOM Tishman has a long history at the site, and had already been onsite assisting with 9/11 rebuild efforts beginning in 2001, ultimately managing more than 11 million square feet of new construction. In 2004, AECOM Tishman was selected to provide preconstruction and construction management services to the Port Authority of New York and New Jersey for the iconic 104-story, 3.5 million SF tower. ![]() At 1,776 feet tall, One World Trade Center is not only the tallest building in the Western Hemisphere, but its sheer size, geographic constraints and operational necessities make it easily one of the region’s - if not the nation’s - most complex projects ever built.
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