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Of all the engineering advances in the s, the Brooklyn Bridge stands out as perhaps the most famous and most remarkable. It took more than a decade to build, cost the life of its designer and was constantly criticized by skeptics who predicted the entire structure was going to collapse into New York's East River. When it opened on May 24,the world took notice and the entire United States celebrated. The great bridge, with its majestic stone towers and graceful steel cables, isn't just a beautiful New York City landmark. It's also a very dependable route for many thousands of daily commuters. John Roebling, an immigrant from Germany, did not invent the suspension bridge, but his work building bridges in America made him the most prominent bridge builder in the US in the mids. His bridges over the Allegheny River at Pittsburgh completed in and over the Ohio River at Cincinnati completed were considered remarkable achievements. Roebling began dreaming of spanning the East River between New York and Brooklyn which were then two separate cities as early aswhen he drew designs for enormous towers that would hold the bridge's cables. The Civil War put any such plans on hold, but in the New York State legislature chartered a company to build a bridge across the East River. Just as work was beginning on the bridge in the summer oftragedy struck. John Roebling severely injured his foot in a freak accident as he was surveying the spot where the Brooklyn tower would be built. He died of lockjaw not long after, and his son Washington Roeblingwho had distinguished himself as a Union officer in the Civil War, became chief engineer of the bridge project. Talk of somehow bridging the East River began as early aswhen large bridges were essentially dreams. The advantages of having a convenient link between the two growing cities of New York and Brooklyn were obvious. The East River is actually a salt water estuary, prone to turbulence and tidal conditions. Further complicating matters was the fact that the East River was one of the busiest waterways on earth, with hundreds of crafts of what mens by steel structures was the first 9 sons sizes sailing on it at any time.



Construction of the World Trade Center - Wikipedia
Construction of the World Trade Center - Wikipedia
Construction of the World Trade Center - Wikipedia