Brooklyn Bridge East Tower
View of Brooklyn Bridge East tower emerging behind nineteenth century commercial buildings on the corner of Front Street and Camden Plaza, Brooklyn. Brooklyn Bridge, Spanning East River between Park Row, Manhattan and, New York, New York County, NY. 4x5 photographic documentation compiled after 1968. Building/structure dates: 1869 initial construction. National Register of Historic Places NRIS Number: 66000523.
Significance: At the time of its opening on May 24, 1883, the Brooklyn Bridge was the longest spanning bridge in the world. It represents the culmination of nearly a lifetime's experience designing and building suspension structures and incorporates the pinnacle of development of design features conceived by John A. Roebling during this period. The Roebling system of suspension bridge construction became the standard for suspension bridges throughout the world. These features included the anchoring system composed of a cast-iron plate buried under masonry to which anchorage chain eyebar links were attached and rose in the curve of a quadrant, the upper ends to which were pinned the looped ends of wire cables; the method of constructing the cables where individual parallel wires were "air spun," consolidated, and wrapped with wire into a solid, cylindrical mass; the diagonal stay cables, radiating from the tower tops down to the deck, a secondary structural feature that gave partial support to the deck and also stabilized the superstructure and cable system against vertical movement in severe winds. The cables were also innovative because it was the first time that steel wire, galvanized to protect against corrosion, was used in a bridge, and the second time that rolled-steel structural sections were used in a bridge superstructure.
Photographed by Jet Lowe in large format color film.
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