The Quebec Bridge

The longest cantilever span ever attempted was bending in the summer of 1907, and the men on it could see it. A telegram that said stop reached the wrong office. At half past five on 29 August the south half went into the St. Lawrence in fifteen seconds, killing 75 men. Nine years later the rebuilt bridge dropped its centre span and killed 13 more. The narrator's voice is synthetic (AI). Selection, research, writing and checking are done by a person.