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In 1940, the Tacoma Narrows Bridge opened at a cost of $6.4 million; it collapsed into Puget Sound four months later in 40 mph winds

"Galloping Gertie" swayed from day one, but its fatal flaws taught engineers how to build safer bridges.

A Design Flaw Undiscovered for 42 Years: The Minneapolis I-35W Bridge Collapse and 13 Victims

Around 6:05 p.m. on August 1, 2007, a highway bridge over the Mississippi River in Minneapolis, Minnesota, USA, suddenly ...
CBS News

Final NTSB report confirms loose wire on ship led to Key Bridge collision and collapse

The National Transportation Safety Board (NTSB) released its final report more than 20 months after the deadly collapse of Baltimore's Francis Scott Key Bridge. Investigators concluded that the ...

In 1940, the Tacoma Narrows Bridge opened after 19 months of construction at a cost of $6.4 million; it collapsed into Puget Sound four months later in 40 mph winds

The bridge opened on July 1, 1940, and had the third-longest suspension span in the entire world, according to the Washington ...