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Workers destroy a century old dam to restore fish migration in Belgium

rtbf.be · 24 October 2026
Workers destroy a century old dam to restore fish migration in Belgium
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Workers removed a small dam on a tributary of the Hermeton river in Belgium to restore natural water flow.

The structure had likely stood for over a century, but local records did not specify its original purpose. Frédéric Mouchet, a coordinator for the Contrat de rivière Haute Meuse, observed the immediate results of the demolition. As the excavator removed the final large stones, trout began to move upstream.

This action helps the fish reach smaller streams to spawn during late October and early November. The project aimed to create ecological continuity for both fish and sediment. By removing the barrier, the team successfully reopened the waterway for local species, including the brown trout.

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