How long did it take to clear the English Channel of First and Second World War mines?
Short answerAbout five years of concentrated clearance, although individual mines still appear long afterward.
NotesThe estimate for concentrated English Channel mine clearance after the world wars is about five years. Mines continued to turn up after those organized efforts. Completing the main clearance campaign therefore did not mean that every weapon had been found. Individual wartime mines remained a hazard decades later.