Hoogheemraadschap van Rijnland
Water authority in South and North Holland, including the areas around Leiden, Haarlem and Gouda. Publishes its managed assets (watercourses, structures, flood defences) through an ArcGIS server hosted by a supplier; not listed in data.overheid.nl or the NGR.
What they publish
Counted across all indexes we harvest.
Where it is
- Geoservices Hoogheemraadschap van Rijnland230
Formats
Subjects (per the publisher)
Sources explained
Rijnland water authority geoservices (ArcGIS REST)
The ArcGIS server of the Rijnland water authority, hosted by a supplier (enl-mcs.nl). Almost every service is one type of managed asset: valves, culverts, pumping stations, weirs, watercourses, flood defences. On 16 October 2026 our index held 230 layers; the current register of structures alone has 57,032 features and the watercourses 187,861 line segments. Rijnland is not listed as a publisher on data.overheid.nl or in the National Georegister, so this is the only public entry point. On reuse, Rijnland itself says it is not allowed without permission; we only show descriptions and counts.