For those not familiar with midwestern US agricultural parlance, "tile" refers to underground perforated pipe used to make soggy ground more amenable to farming

For those not familiar with midwestern US agricultural parlance, "tile" refers to underground perforated pipe used to make soggy ground more amenable to farming. In other areas it is called a "french drain." https://en.wikipedia.org/wiki/French_drain https://en.wikipedia.org/wiki/French_drain It is used on more than just wetlands, though in all cases it speeds the movement of waters to main arterial rivers.