Eider Canal conservation areas. Eider Canal The Eider Canal (also called the Schleswig-Holstein Canal) was an artificial waterway in southern Denmark (later northern Germany) which connected the North Sea with the Baltic Sea by way of the rivers Eider and Levensau. Constructed between 1777 and 1784, the Eider Canal was built to create a path for ships entering and exiting the Baltic that was shorter and less storm-prone than navigating around the Jutland peninsula. In the 1880s the canal was replaced by the enlarged Kiel Canal, which includes some of the Eider Canal's watercourse. The canal's watercourse followed the border between the
1872 Baltic Sea flood 1872 Baltic Sea flood The 1872 Baltic Sea flood (), often referred to as a storm flood, ravaged the Baltic Sea coast from Denmark to Pomerania, also affecting Sweden, during the night between 12–13 November 1872 and was, until then, the worst storm surge in the Baltic. The highest recorded peak water level was about 3.3 m above sea level (NN). In the days before the storm tide, a storm blew from the southwest across the Baltic that drove the sea towards Finland and "Balticum". The result was flooding there and extreme low water levels on the Danish-German coastlines. As