The water quality in the Bergse Plassen does not meet the standards of the European Water Framework Directi...

The Sloterplas suffers from water with a low transparency and the water contains a lot of blue algae. Th...

Migration between polders and rivers, and between fresh and salt water is particularly difficult for fis...

Because of limitations of the designs, current fish passes are not used optimally by fish.

The fr...

Small fish passages are often located in areas were waterways are completely dry in the summer. The pass...

Migratory fish need fresh and salt water for their lifecycle, but due to dikes and dams like the Afsluit...

Urban areas are confronted with water nuisance because of heavy rainfall, and water shortages through dr...

The flow in waterways, buffer basins and sewers is not limited, which can cause water nuisance after hea...

Heavy precipitation causes water nuisance in paved surroundings, as a result of the lack of facilities t...

Undesirable saltwater intrusion occurs.