TIL about the Chesterfield Canal Dredging Mistake. In 1978, UK workers cleaning up the canal removed a heavy chain from the bottom, only for that section of the canal to drain completely away. The chain was attached to a plug, installed there 200 years previously for maintenance, and long forgotten.
https://wikishire.co.uk/wiki/Chesterfield_Canal
#til #todayilearned
https://www.reddit.com/r/todayilearned/comments/1oea3yl/til_about_the_chesterfield_canal_dredging_mistake/