Tay Bridge
The company which had the contract for building the bridge went bankrupt while Bouch was redesigning the bridge. The replacement company did poor work. Almost every part of the bridge was substandard, including the iron and the ties and fixings. Lack of precision in the bolts and braces led to ad hoc on-site fixes, described by one witness at the later inquiry as  "about as slovenly a piece of work as ever I saw in my life".