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Tacoma Narrows Bridge (1950)
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The 1950 Tacoma Narrows Bridge is a suspension bridge in the U.S. state of Washington that carries the westbound lanes of Washington State Route 16 across the Tacoma Narrows strait, between the city of Tacoma and the Kitsap Peninsula. Opened on October 14, 1950, it was built in the same location as the original Tacoma Narrows Bridge, which collapsed due to a windstorm on November 7, 1940. It is the older of the twin bridges that make up the Tacoma Narrows Bridge crossing of the Tacoma Narrows, and carried both directions of traffic across the strait until 2007. At the time of its construction, the bridge was, like its predecessor, the third-longest suspension bridge in the world in terms of main span length, behind the Golden Gate Bridge and George Washington Bridge; it is now the 46th longest suspension bridge in the world.
The 1950 Tacoma Narrows Bridge in 1988
The 1950 Tacoma Narrows Bridge in 1988
A detailed closeup of the stiffening truss. Photo is of the west side span, photographed from under the 2007 span's west side span on the shore of The
A detailed closeup of the stiffening truss. Photo is of the west side span, photographed from under the 2007 span's west side span on the shore of The Narrows. Photo also illustrates the flow-through wind grating.
The 450-foot (140 m)-long west approach viaduct. Tower #3 (far right; closest to the suspended structure) extends to the shoreline. Was originally par
The 450-foot (140 m)-long west approach viaduct. Tower #3 (far right; closest to the suspended structure) extends to the shoreline. Was originally part of Galloping Gertie
The stiffening truss damping mechanism at the towers. The hydraulic shock damping mechanisms themselves are seen as small cylinders where the diagonal
The stiffening truss damping mechanism at the towers. The hydraulic shock damping mechanisms themselves are seen as small cylinders where the diagonal bracing meets the towers (each one is 2 feet (0.61 m) in diameter and 4 feet (1.2 m) long).
Leon Moisseiff
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Leon Solomon Moisseiff was a leading suspension bridge engineer in the United States in the 1920s and 1930s. He was awarded The Franklin Institute's Louis E. Levy Medal in 1933.
Manhattan Bridge
Manhattan Bridge