The morning of September 11, 2001 started as another routine day of crane work for Cornell & Company. The project was a high-rise in Jersey City, New Jersey, just across the river from Manhattan. After a long climb up the tower ladder, crane operators were in place, hoisting steel beams across the bright sunny sky. Project managers and crews worked on the ground below, and high above. On her way to a meeting onsite, Delor Cornell, owner of Cornell & Company, was busy checking progress on the job. In an instant, everything changed. A plane appeared, coming up the river much too low. It continued its descent, traveling northwest directly towards Manhattan. Work at the site stopped. Crew members, along with Delor Cornell, watched the plane hit the World Trade Center. It was a moment the world would never forget. Years later, when given a chance to help construct Tower 3 at the new World Trade Center, Cornell & Company considered the job a special privilege. “This project has a great significance to us, and for our owner,” says Don Garrahan, Cornell Crane general manager. “It’s a great honor, and we’re very humbled by the whole experience. It’s a very moving thing, and sends chills up my spine.” Going to great heights The new World Trade Center will include five new skyscrapers, the National September 11 Memorial & Museum, 550,000 square feet of retail space and a performing arts center. Three large tower gantry cranes from Cornell & Company are currently constructing 3 World Trade Center, the third-tallest building on the World Trade Center site. Rising 80 stories, Tower 3 will include 2.8 million square feet of office space, spread across 53 floors and five trading floors. The tower consists of a reinforced concrete core with steel structure outside the core, clad in an external structural steel frame. Scheduled to be completed in the summer of 2014, the gleaming new skyscraper will be situated at the center of the various buildings around the memorial. At 1,080 feet high, 3 World Trade Center has been designed to meet or exceed modern standards for safety and sustainability. A switch to fuel-efficient and cleaner-burning engines enabled Cornell & Company to bid for and win the World Trade Center tower crane work by complying with New York’s tough local emissions standards. Running more efficiently As one of America’s most densely populated cities, New York passed Local Law 77 to reduce the impact of exhaust emissions on human health. The city regulation requires operators of diesel equipment to use ultra low-sulfur diesel (ULSD), install diesel particulate filters (DPF) on the exhaust and comply with EPA diesel emissions regulations for Tier 3. The old Detroit Diesel 2-Cycle 12V71T diesel engines in Cornell & Company’s crane fleet were simple and dependable, but they were not as clean burning or as fuel efficient as today’s modern 4-cycle diesels. Due to their design, «This project has a great significance to us, and for our owner. » Don Garrahan, Cornell & Company general manager the 12V71T engines used a lot of fuel, and their exhaust emissions were too high to comply with any of the EPA Tier levels or Local Law 77. Cornell & Company had to update the engines in its fleet of cranes if it wanted to win construction jobs in New York. “As an initial test, we bought an <strong>MTU</strong> Series 60 engine and put it in one of our TG1900 tower gantry cranes,” said Garrahan. “We looked at other manufacturers’ engines too, but the people who offered the best service and who helped us the most were Johnson & Towers, the local <strong>MTU</strong> distributor. They made it happen. They gave us an excellent product and excellent service. That’s a good combination. Good engines, good people and a lot of effort made this a success.” A new face for Ground Zero MEMO Until September 11, 2001, the World Trade Center was the symbol of the New York skyline. Then came the moment when not only the towers were destroyed but the whole of America suffered a devastating blow. Eleven years have now passed since that day and America is constructing a new building complex on the site of the old World Trade Center. At its heart is One World Trade Center, a new skyscraper that was originally to be called Freedom Tower and will dominate the future Manhattan skyline as New York's tallest building. The main tower will be flanked by three smaller buildings, Towers 2, 3 and 4. A high-rise block slightly to the side of the World Trade Center was previously reconstructed in 2006. In the shade of the steel and glass giants surrounded by a coppice of oak trees is a memorial to the attacks: two granite basins built into the rectangular footprints of the collapsed twin towers. Waterfalls cascade over the sides and into the pools below while the names of the victims are engraved on bronze plaques around the parapet walls.
Industrial New York is to have one of its symbols restored. Thousands of people and machines are currently working on construction of the new World Trade Center building complex. <strong>MTU</strong> Report 03/12 I 31
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