Water Protocol of Košice

situation problem

The soil was unable to retain water, resulting in no vegetation growing on the land, which led to an increased risk of flooding. Rainwater ran off without benefit and damaged the ecosystem through intensive erosion.

In February 2005, the Košice Parliament approved a strategic document for water protection in the Košice conurbation as a prevention against floods, drought and climate change. The aim of the protocol was to strengthen the retention of rainwater in the urban landscape.


The main idea of the project was to retain rainwater and thus create suitable moisture conditions for optimal growth of new vegetation. This species diversity will later take over the function of retaining rainwater, which would otherwise run off without benefit and the ecosystem would remain damaged. The aim of the innovative solution was to gradually restore the vegetation and its species diversity in the area.


In November 2005, the project was put into practice. The so-called contour strips were implemented on a 3ha site. These strips can retain rainwater at one time, approximately 300,000 litres of water. In the first years of the project, the strips were regularly filled with rainwater. The water was subsequently absorbed and later evaporated.



Restoration of dried soil


Meadow vegetation improvement


Restoration of erosion-damaged ecosystems


Diversity and variety


Protected tennis complex from annual heating



60k m3

Retained rainwater

200k m3

Evaporated water during a summer day

The idea of stormwater retention at the site has reached its full potential.

Flooded landscape in Košice

Other Implementations

Tatras Botanical Garden

Tatras Botanical Garden

The Botanical Garden of the Tatras High Mountain Flora in Tatranská Lomnica (Slovakia) suffered from artificially planted high mountain Tatra flora, which could not develop sufficiently due to the...

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Dykes in Jarovnice

Dykes in Jarovnice

The village of Jarovnice in eastern Slovakia was hit by catastrophic floods. In 1998, they claimed the lives of 49 children. The state subsequently invested more than EUR 4 million in regulating the...

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