The Williamsburg Bridge was the first bridge with all-steel towers. The 310-foot steel towers support four cables, each measuring 18 inches in diameter and weighing 4,344 tons!
Did you know? The Spirit of America’s keel is built with steel from the World Trade Center towers. The boat entered service in 2006.
On July 12, 2010 the new swing span of the Bridge was loaded onto barges and began a 135 nautical mile journey to NY Harbor and then to the East River. The bridge is 350 ft long and weighs 2,400 tons.
Water from 40 miles away in Westchester County used to cross the bridge en route to a reservoir in Manhattan. Completed in 1848, it’s the oldest bridge in New York City.
Did you know? The Manhattan Bridge was the first suspension bridge built on deflection theory. It opened to traffic on December 31, 1909. 続きを読む
