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Bayonne Bridge
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This bridge was built
between 1928 and 1931 by O.H. Ammann and the architect
Cass, in order to join Staten Island to the mainland.
It is 1763 m long and 22,57 m wide. .
It is a double-hinged arch span, which is 510,55
m long and 83,57 m high. It had been the longest
in the world until the New River Gorge Bridge. The
span is 45 m above sea level. Ammann chose this
type of bridge rather than a suspension bridge,
because the anchorage would have been too expensive
to excavate from the dense bedrock on both shores.
It is the first time that High-strength alloy steel
was used for ribs and rivets.
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