The 1940 Tacoma Narrows Bridge was the first incarnation of the Tacoma Narrows Bridge, a suspension bridge in the U.S. state of Washington that spanned the Tacoma Narrows strait of Puget Sound between Tacoma and the Kitsap Peninsula. It opened to traffic on July 1, 1940, and dramatically collapsed into Puget Sound on November 7 of the same year.

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  • The 1940 Tacoma Narrows Bridge was the first incarnation of the Tacoma Narrows Bridge, a suspension bridge in the U.S. state of Washington that spanned the Tacoma Narrows strait of Puget Sound between Tacoma and the Kitsap Peninsula. It opened to traffic on July 1, 1940, and dramatically collapsed into Puget Sound on November 7 of the same year. At the time of its construction (and its destruction), the bridge was the third longest suspension bridge in the world in terms of main span length, behind the Golden Gate Bridge and the George Washington Bridge. Construction on the bridge began in September 1938. From the time the deck was built, it began to move vertically in windy conditions, which led to construction workers giving the bridge the nickname Galloping Gertie. The motion was observed even when the bridge opened to the public. Several measures aimed at stopping the motion were ineffective, and the bridge's main span finally collapsed under 40-mile-per-hour (64 km/h) wind conditions the morning of November 7, 1940. Following the collapse, the United States' involvement in World War II delayed plans to replace the bridge. The portions of the bridge still standing after the collapse, including the towers and cables, were dismantled and sold as scrap metal. Nearly 10 years after the bridge collapsed, a new Tacoma Narrows Bridge opened in the same location, using the original bridge's tower pedestals and cable anchorages. The portion of the bridge that fell into the water now serves as an artificial reef. The bridge's collapse had a lasting effect on science and engineering. In many physics textbooks, the event is presented as an example of elementary forced resonance with the wind providing an external periodic frequency that matched the natural structural frequency, though its actual cause of failure was aeroelastic flutter. Its failure also boosted research in the field of bridge aerodynamics-aeroelastics, the study of which has influenced the designs of all the world's great long-span bridges built since 1940.
  • Tacoma Narrows Bridge on kaksi rinnakkaista Tacoman kapeikon yli johtavaa riippusiltaa Washingtonin osavaltiossa Yhdysvalloissa. Vanhin nykyisistä silloista, ikäjärjestyksessä toinen, rakennettiin vuonna 1950. Lisääntyneen liikenteen takia se sai vuonna 2007 rinnalleen toisen riippusillan, jolle siirretiin itään suuntautuva liikenne, vuoden 1950 sillan jäädessä länteen suuntautuvalle liikenteelle. Ensimmäinen riippusilta kapeikkoon valmistui kuitenkin jo vuonna 1940.
  • De Tacoma Narrows Bridge is een hangbrug in de Verenigde Staten van 1,6 km. Het was de op twee na langste brug van de wereld op het moment dat zij was gebouwd. Op 7 november 1940 om ongeveer 11 uur is de Tacomabrug ingestort door trillingen, veroorzaakt door de wind. Deze brug bevond zich vlak bij de stad Tacoma in de staat Washington en was nog maar 4 maanden opengesteld voor het verkeer. De brug stortte in doordat de wind de brug in resonantie bracht.
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  • The original Tacoma Narrows Bridge roadway twisted and vibrated violently under winds on the day of the collapse
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  • of the Tacoma Narrows bridge wobbling and eventually, collapsing
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  • The 1940 Tacoma Narrows Bridge was the first incarnation of the Tacoma Narrows Bridge, a suspension bridge in the U.S. state of Washington that spanned the Tacoma Narrows strait of Puget Sound between Tacoma and the Kitsap Peninsula. It opened to traffic on July 1, 1940, and dramatically collapsed into Puget Sound on November 7 of the same year.
  • Tacoma Narrows Bridge on kaksi rinnakkaista Tacoman kapeikon yli johtavaa riippusiltaa Washingtonin osavaltiossa Yhdysvalloissa. Vanhin nykyisistä silloista, ikäjärjestyksessä toinen, rakennettiin vuonna 1950. Lisääntyneen liikenteen takia se sai vuonna 2007 rinnalleen toisen riippusillan, jolle siirretiin itään suuntautuva liikenne, vuoden 1950 sillan jäädessä länteen suuntautuvalle liikenteelle. Ensimmäinen riippusilta kapeikkoon valmistui kuitenkin jo vuonna 1940.
  • De Tacoma Narrows Bridge is een hangbrug in de Verenigde Staten van 1,6 km. Het was de op twee na langste brug van de wereld op het moment dat zij was gebouwd. Op 7 november 1940 om ongeveer 11 uur is de Tacomabrug ingestort door trillingen, veroorzaakt door de wind. Deze brug bevond zich vlak bij de stad Tacoma in de staat Washington en was nog maar 4 maanden opengesteld voor het verkeer. De brug stortte in doordat de wind de brug in resonantie bracht.
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  • Tacoma Narrows Bridge (1940)
  • Tacoma Narrows Bridge
  • Tacoma Narrows Bridge
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