Same thing happened in the United States. Scores of people left New England and moved into the Finger Lakes area of New York. The building and completion of the Erie Canal helped hasten the exodus. By 1830 or so, Buffalo was the 4th largest city in the United States (after New York, Philadelphia and Baltimore).
Very interesting history of what the canal did for the economy of New York: It basically made it the top economy and most populous state in America for the next 130 years or so.