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

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...

In their migration from waterway to polder, fish are hampered by obstacles such as pumping stations and ...

Heavy rainfall is occuring more and more and can cause flooding in the streets. Water authorities and mu...

Due to agricultural uses, the water level is kept higher in summer than in winter. Because of climate ch...

When heavy rainfall occurs, pavement and sewers flood.

Flooding due to heavy rainfall or high sur...

The infiltration capacity of the "Piet Mondriaanplein" (square) in Amersfoort needs the improve to preve...

In urban area, space for green facilities is limited, therefore underground solutions are used. However, th...

Undesirable saltwater intrusion occurs.