A geospatial dataset containing the location of all street and sidewalk drainage grates, known as 'kolken', in the Netherlands. The dataset is provided by the Dutch Ministry of the Interior and Kingdom Relations and is offered via OGC:WFS and OGC:WMS services. Data can be downloaded in multiple file formats including GML, ESRI SHAPE, JSON, KML, and CSV.
Use Cases
- Mapping urban drainage infrastructure for maintenance planning based on location data.
- Analyzing stormwater drainage network coverage and density based on point locations.
- Modeling flood risk by identifying drainage inlet points based on the described sewer connections.
- Planning preventative cleaning schedules for sand catchment areas to prevent blockages.
Strengths
- Data is offered via standard OGC web services (WFS, WMS) for interoperability.
- Available for direct download in seven common geospatial and tabular file formats.
- Published under a permissive CC-BY-4.0 license for reuse.
Limitations
- Row count and total geographic extent are unknown, which may limit suitability assessment.
- Column-level documentation is absent; field semantics must be inferred after download.
- Last update date is unknown; freshness unverified.
Provenance
- Source
- Ministerie van Binnenlandse Zaken en Koninkrijksrelaties (Dutch Ministry of the Interior and Kingdom Relations)
- Collection Method
- Likely aggregated from municipal or regional public works records.
- Time Range
- null
- Freshness
- Last update date is unknown; freshness unverified.
- Geography
- Likely covers the Netherlands, based on the source organization.