In August 2002 heavy rainfall lead to severe flooding affecting the region
of Saxony and the Czech Republic. Since mills are by their nature
located by the watercourses, many of them were heavily damaged by the
floods.
The
23 most damaged museums
in Germany included the boat mill at the Dueben Heath Countryside Museum -
Castle Dueben, and 4 other mills.
There is extensive information in English, and even more detail in German.
German and Czech museums damaged in the August 2002 floods