The Brooklyn Bridge is likely the most widely known of all the Manhattan bridges and connects the borough of Manhattan and Brooklyn. When the bridge opened in 1883, it was the longest suspension bridge in the world. At the time it was 1,597 feet, and is currently listed as a certified historic monument. The Brooklyn Bridge was designed by German engineer John Roebling in the the later 1860s, even though he unhappily didn't live to see it fully built. Roebling's son, also an engineer, took control of the building of the Brooklyn bridge after his father.
One of busiest bridges in N. Y is the Queensboro bridge, which connects Queens to Manhattan. This five-span cantilever bridge sees around 180,000 motorists cross each year, along with thousands of pedestrians and bicyclists. Built between 1901 and 1909, it was a collusion between engineer Gustav Lindenthal and designer Henry Hornbostel. Comprising of seventy-five thousand tons of steel, the project cost $18 million and was at one time the longest cantilever bridge in the U.S.
Most New York Bridges are suspension bridges and the Manhattan bridge is not an exception. Opened in 1909, it connects Manhattan to Brooklyn and spans 1,470 feet across the East Brook. Costing $31 million, the bridge was initially designed for streetcars and trains, but auto lanes replaced the street vehicles around the 1940s. The entrance arches to the bridge were famously influenced by the Porte St. Dennis in Paris and designed by Carrere and Hastings, the firm behind the Long Island Public Library.
Also spanning between Brooklyn and Manhattan, the Williamsburg Bridge is probably one of the most active bridges in NY. Over 140,000 motorists use the bridge annually, together with loads of cycle riders and pedestrians. When it opened in 1903 it said the title of longest suspension bridge span in the world at 1,600 feet, just beating the Brooklyn Bridge. Like the Queensboro Bridge, Williamsburg was designed by Lindenthal.
George Washington Bridge
The George Washington Bridge connects New York to New Jersey across the Hudson River. When it was opened in 1931 the bridge was twice as long as any other suspension bridge of the time at 4,760 feet. Today the bridge sees over 52 million vehicles cross its span annually. It was Othmar Ammann, a Swiss designer, who designed the bridge after a century-long search for a suitable design.
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