4. There’s Enough Concrete on the New Kosciuszko Bridge to Cover All 1.3 Square Miles of Central Park

The construction of the Kosciuszko Bridge used 5,700,000 cubic feet of concrete, which is enough to cover all 1.3 square miles of Central Park with roughly two inches of concrete. Amongst this huge mass are 154 concrete girders that were installed for the bridge’s new approaches, which connect to the main span in Brooklyn and Queens. Each girder weighs between 106,000 pounds to 130,000 pounds for a total weight of 19.9 million pounds, or roughly the weight of 224 subway cars.

In addition, the Queens span required 5,147 tons of rebar, which weighs as much as 686 elephants, as well as 5.8 million pounds of steel.