Verrazzano-Narrows Bridge Island with the rest of the city. Various issues delayed the start of construction until 1959. The bridge opened on November 21, 1964, and a second deck beneath the existing span was opened in June 1969. The New York City government began a $1.5 billion reconstruction of the bridge's two decks in 2014. The Verrazzano-Narrows Bridge has a central span of . It was the longest suspension bridge in the world from 1964 until it was surpassed by the Humber Bridge in the United Kingdom in 1981. The bridge has the 13th longest main span in the world, as well
Suspension bridge deck is added). One can see the shape from the constant increase of the gradient of the cable with linear (deck) distance, this increase in gradient at each connection with the deck providing a net upward support force. Combined with the relatively simple constraints placed upon the actual deck, this makes the suspension bridge much simpler to design and analyze than a cable-stayed bridge, where the deck is in compression. In an underspanned suspension bridge, the main cables hang entirely below the bridge deck, but are still anchored into the ground in a similar way to the conventional type. Very