Steel bud, just steel. The chords that help support the bridge are made from carbon steel, which was a relatively new material for the time it was made.
Hell Gate Bridge was created in 1916.
The Hell Gate Bridge Cost $70.00 to build.
The Hell Gate Bridge is New York's longest bridge.
Gustav Lindenthal
steel
Hell gate bridge in New York
Lions Gate Bridge is made of steel and concrete.
It is a bridge over the East River in New York City, which trains run over.
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The Golden Gate bridge was opened on May 27, 1937.
1968-1978
steel