Saturday, August 24, 2013

Brooklyn Bridge From Wikipedia, the free encyclopedia

Brooklyn Bridge
Brooklyn Bridge Postdlf.jpg
The Brooklyn Bridge, viewed from Manhattan
CarriesMotor vehicles (cars only)
Elevated trains (until 1944)
Streetcars (until 1950)
Pedestrians and bicycles
CrossesEast River
LocaleNew York City (ManhattanBrooklyn)
Maintained byNew York City Department of Transportation
DesignerJohn Augustus Roebling
DesignSuspension/Cable-stay Hybrid
Total length5,989 feet (1825 m)[1]
Width85 feet (26 m)
Height276.5 ft (84.3 m) above mean high water[2]
Longest span1,595 feet 6 inches (486.3 m)
Clearance below135 feet (41 m) at mid-span
OpenedMay 24, 1883; 130 years ago[3]
TollFree both ways
Daily traffic123,781 (2008)[4]
Coordinates40.70569°N 73.99639°WCoordinates40.70569°N 73.99639°W
Brooklyn Bridge is located in New York City
Brooklyn Bridge

The Brooklyn Bridge is a bridge in New York City and is one of the oldest suspension bridges in the United States. Completed in 1883, it connects the boroughs of Manhattan and Brooklyn by spanning the East River. With a main span of 1,595.5 feet (486.3 m), it was the longest suspension bridge in the world from its opening until 1903, and the first steel-wire suspension bridge.
Originally referred to as the New York and Brooklyn Bridge and as the East River Bridge, it was dubbed the Brooklyn Bridge, a name from an earlier January 25, 1867, letter to the editor of the Brooklyn Daily Eagle,[7] and formally so named by the city government in 1915. Since its opening, it has become an icon of New York City, and was designated a National Historic Landmark in 1964[6][8][9] and a National Historic Civil Engineering Landmark in 1972.[10]

Construction[edit source | editbeta]


John Augustus Roebling
The Brooklyn Bridge was initially designed by German immigrant John Augustus Roebling, who had previously designed and constructed shorter suspension bridges, such as Roebling's Delaware Aqueduct in Lackawaxen, PennsylvaniaWaco Suspension Bridge in Waco, Texas, and the John A. Roebling Suspension Bridge inCincinnati, Ohio.
While conducting surveys for the bridge project, Roebling sustained a crush injury to his foot when a ferry pinned it against a piling. After amputation of his crushed toes he developed a tetanus infection which left him incapacitated and soon resulted in his death, not long after he had placed his 32-year-old son Washington Roebling in charge of the project.[11] Washington Roebling also suffered a paralyzing injury as a result of decompression sickness shortly after the beginning of construction on January 3, 1870.[12] This condition, first called "caisson disease" by the project physician Andrew Smith, afflicted many of the workers working within the caissons.[13][14] Roebling's debilitating condition left him unable to physically supervise the construction firsthand.

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