The Elbląg Canal built in the second half of the 19th century (designed by prof. eng. J. Steenke) is the only historical monument of this type of technological thought in Europe. The difference in elevation over a length of 10 km is 100 m. This problem was overcome by building a water canal combined... with inclined planes. The ships sail on water along the level sections and are transported up and down the slopes on special platforms.