The Tacoma Narrows Bridge in Washington State collapses on November 7, 1940. The bridge had been opened to traffic only four months earlier on July 1, 1940. The bridge's main span collapsed in 40-mile-per-hour winds as the deck oscillated in an alternating twisting motion that gradually increased in amplitude until the deck tore apart. More
Efforts to replace the bridge were delayed by US involvement in World War II, as well as engineering and finance issues, but in 1950, a new Tacoma Narrows Bridge opened in the same location.
