Collapse of the Upper Steel Arch Bridge in 1938.
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Previously:
https://www.homemadetools.net/forum/...582#post189685
https://www.homemadetools.net/forum/...176#post161179
https://www.homemadetools.net/forum/...429#post192814
https://www.homemadetools.net/forum/...465#post154822
https://www.homemadetools.net/forum/...iver-gif-89277
