What are the categories of dams in the Czech Republic and how are they determined?

The water structures in the Czech Republic are classified in four categories, where loss potential in case of dam-break is the main point of view for the division of these categories. The level of safety surveillance and supervision on each water structure therefore depends according to potential losses on human lives and property in case of their breach. The determination of criteria and procedures for the classification of waterworks into categories is subject of special legislation, especially Water Act. Letter (P) stands for the potential of damages.

This is the definition for the categories, in which are the dams divided:

I. category -> (P) > 1500

II. category -> 200 ≤ (P) < 1500

III. category -> 15 ≤ (P) < 200

IV. category -> (P) < 15