Subtypes Waterboards - Regional / Supra-local Waterboards

The category of regional or supra-local waterboards is not a real type as it lacks uniformity. It was only for practical reasons that we decided to lump all supra-local waterboards together in this heterogeneous category. It includes co-operations of a few polder boards sharing drainage works and large integrated organisations like the hoogheemraadschap van Delfland that supervised the local waterboards in its territory.



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