This dataset corresponds to the flood hazard maps for the Brussels-Capital Region, in accordance with Directive 2007/60/EC of the European Parliament and of the Council of 23 October 2007 on the assessment and management of flood risks. It is made of16 geometric classes. These flood hazard maps show the areas that may be flooded by watercourses (fluvial flooding), as a result of rainwater runoff during heavy rainfall (pluvial flooding), or by sewer overflow at the surface onto public roads (the latter are not fully available for the region). And underground flooding resulting from a groundwater table close to the surface. These maps show the extent, water levels and flow velocities of the areas that will be flooded under various scenarios: a return period of 25, 100 and 100 years, and a climate change scenario (corresponding to a hundred-year rainfall event from 2100 onwards, based on a climate warming trajectory of up to +3.5 °C). Please note that these maps have no regulatory value.

Brussels-Capital Region :

Brussels-Capital Region : This flood hazard map identifies areas where flooding could occur due to stream overflow, runoff from rainwater, overflowing sewers or a temporary rise in the water table, even in places where no flooding has been observed until now. The absence of a flood hazard zone on the map does not guarantee that flooding will never occur as it does not take into account certain causes of flooding such as a local failure of the sewage network, etc. Please note that these maps have no regulatory value, they have been produced in accordance with the European Directive 2007/60/EC to determine the prevention and protection measures. The maximum scale is 1/10.000 as the modelled data are not representative on a larger scale.

Brussels-Capital Region : watercrouse links in Brussels Region, defined under the Directive and the Ordinance Water

This dataset corresponds to hydrography in the Brussels-Capital Region. It is made up of nine geometric classes: drainage basins, arched watercourses, open watercourses, surface water (ponds, marshes, swamps), surface water bodies, springs, right-of-way zone for arched watercourses, non aedificandi zone.

Brussels-Capital Region : watercrouses in Brussels Region, defined under the Directive and the Ordinance Water

This dataset corresponds to the atlas of the hydrographic network of the Brussels-Capital Region, in accordance with the Decree of 23 May 2024 classifying non-navigable watercourses, designating regional ponds, determining the content, scope, procedures and deadlines for drawing up the Atlas of the hydrographic network of the Brussels-Capital Region and adopting this Atlas. It is made of ten geometric classes: classified watercourses, unclassified watercourses, bank crests, regional ponds, ditches, engineering structures, sluice walls, watercourse points of origin, cross profiles, embankments.

Brussels-Capital Region : This map depicts elements exposed to potential flooding.

Brussels-Capital Region : drainage basins in Brussels Region, defined under the Directive and the Ordinance Water

Brussels-Capital Region : location of the different surface water quality monitoring sites under the Water Framework Ordonnance and Directive. Surface waters concerned are surface water bodies: Canal, Senne and Woluwe. Monitoring involves a series of chemical, physico-chemical parameters... The code and the name of the monitoring site are given.