Tacoma Bridge Collapse…..
November 7, 1940……
The Tacoma Narrows Bridge collapsed. It had just opened four months earlier. It was located in the U.S. state of Washington and was the word’s third-longest suspension bridge at the time. Even while being constructed, winds caused the bridge to sway with the workers calling it “Galloping Gertie”. During 40 mph (64 km/h) winds, the bridge began oscillating in an alternating twisting motion that gradually increased in amplitude until the deck tore apart.