When Tore Sorebakken and a team of workers reached the Vinstra River in the heart of Norway in December 2025, no one knew what they were looking for. But when they emptied the pond, drilled dozens of holes and installed 750 kilos of explosives, local authorities stopped them and asked them what why were they trying to destroy that natural waterfall.
Sorebakken, surprised, had to explain to them that this was actually a dam built at the beginning of the 20th century to facilitate the transportation of wood and generate a minimum amount of hydroelectric energy. The locals had completely forgotten about it: as I say, they had no idea that it was a human infrastructure.
And that is a beautiful metaphor for the enormous abandonment that European rivers have suffered for decades.
Free the rivers. Six years ago, the demolition of old dams and clogged weirs was anecdotal in Europe. But in 2024 it came into force European Union Nature Restoration Regulation. It sought to return 25,000 kilometers of river to “free-flow” status before 2030.
Since then (since before, really, because there were countries that began to implement it before it came into force) we have had five consecutive years of historical highs. In 2025, according to Dam Removal Europe annual reportat least 603 barriers were removed on the continent. This allowed more than 3,740 kilometers of river to be reconnected.
The ‘more’ in the previous paragraph is because reconnection data is only available for 198 of the 603 barriers removed.
But why do we want to ‘reconnect kilometers of river’? There are many data, but one that is especially clear is that More than 42% of European freshwater fish species are threateneds and about two-thirds are at risk of being so.
Whether we like it or not, 9 out of 10 natural disasters in the European Union in the last decade have had to do with water. And having the rivers full of forgotten structures is part of the problem. ‘Taking back control’ of rivers is essential to reduce the risks of contemporary European society.
But that will have consequences, right? This can be read in many places: that European policies of “dam demolition” aggravate droughts. The problem is, of course, that is inaccurate. At least, if we go by the majority of the demolitions.
Almost everything that is being torn down are weirs of less than two meters. That is, small barriers that do not store water, but rather raise the sheet to divert flow to an irrigation canal, hydroelectric plant or mill. In fact, most of them should already be demolished because the concessions that allowed them have expired, but no one has paid special attention to it.
Until now.
Image | Red Zeppelin
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