Occurrence of Attributes in Original Text

The text related to the cultural heritage 'Water Management System of Augsburg' has mentioned 'Dam' in the following places:
Occurrence Sentence Text Source
For the 1972 Olympic Games in Munich, a Lech River dam protective diversionary canal for river ice was converted into the world's first artificial whitewater slalom course: the Eiskanal and remains a world-class venue for whitewater competition and served as prototype for two dozen similar foreign courses.