Excellent pics... thanks for your efforts.
Video of ‘Galloping Gertie’
http://www.pbs.org/wgbh/nova/bridge/meetsusp.html#clips
On November 7, 1940, only four months after it opened, the Tacoma Narrows Bridge collapsed in a wind of 42 mph—even though the structure was designed to withstand winds of up to 120 mph.