Salmon Comeback Rhine: Visit to the fish pass construction site

From Thursday 30 November to Friday 1 December, the ERN team travelled down the Rhine to see the progress of the fish passes under construction at the Marckholsheim and Rhinau sites. These projects, managed by EDF, represent an investment of several tens of millions of euros to protect the Rhine’s large migratory species. The two projects, which are identical, are being carried out with a slight time lag of 8 months between the two sites.
These fish passes have several entrances on each side of the power station, on the left and right banks, enabling each fish to find its way to the pass. To pass from the left bank to the right bank, the fish will use a “bridge” that will pass over the power station. This will take them a total of 1 kilometre to get around the power station. The fishways will span a 13 m difference in height, and consist of more than 90 upstream pools with a 20 cm drop between each pool.
Friday morning was devoted to a meeting in Kembs to monitor the renaturation of the Rhine island.

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