The Spree River has to put up with a lot, including sulphate from lignite mines and pesticides from farmers' fields in Brandenburg, just to name a few. Things get very problematic for the Spree especially as it makes its way through Berlin. When it rains heavily, the sewage system overflows and everything is simply washed into the river. When this happens – which can be up to 30 times per year – a fairly clean river turns into a sewer.
The Flussbad Berlin is a first step in the direction of changing this situation. With the help of a natural plant filter, our goal is to cleanse the water in the historical Kupfergraben, a central section of the Spree. This will make it possible to swim in a 840-metre section of clean Spree water. Right in the heart of Berlin.
In addition to the plant filter, we will also examine and propose further measures for the improvement of the quality of water. These range from local water-capture options in overflow structures to the management of canal pipe sections already existing in the project area.