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Published on Nov 27, 2017
In 2014, the New York State Department of Transportation awarded Skanska the contract to design and build the first of two structures comprising the new Kosciuszko Bridge, and to demolish the original bridge – which opened in 1939. Once the new cable-stayed bridge opened to traffic on April 27, 2017, our focus shifted to removing the original.
The Kosciuszko Bridge team removed the 2.3-million-kilogram (5 million pounds) main span of the former bridge by lowering it into the Newtown Creek. For the removal of the remaining approaches at both ends of the bridge on October 1st, explosives were used to “energetically fell” 20 steel spans stretching a total of about 800 meters (2,600 feet) and at points more than 30 meters (100 feet) high. This explosive finale is the culmination of months of careful planning, which safely bring together 125 kilograms (275 pounds) of explosives in exacting fashion with 22.7 million kilograms (25,000 tons) of steel and concrete.