| Description |
Official nationwide geospatial vector dataset mapping hydraulic defense structures, primary and secondary dikes, levees, embankments, and their associated structural layers/components across the Netherlands. Standardized according to the Information Model Water (IMWA) framework and aggregated across all 21 regional Dutch Water Boards (Waterschappen) via Het Waterschapshuis. The complete data model includes construction layers, soil/base material, geotextiles, toe protection, finishing layers, wall structures, and reference points. |