Poutès Dam on the Allier river : Deconstruction ongoing !

Remember, at the end of August 2019 the 3 sluice gates of the Poutès dam had been removed. This year the work program becomes even more interesting! The construction site was re-installed at the end of May and since July 1st you can see the machines attacking the civil engineering of the dam !

Weir partial removal on the right bank – July 2020 © EDF

This year, the 3 weirs and the 2 piers will be lowered and the footbridge removed. A notch on the left bank will be created and will allow the circulation of water, fish and sediments without hindrance until the summer of 2021 ! The devices for upstream and downstream migration will start to be modified to correspond to the new coasts and standards of the dam (digging under the elevator in particular).

All the details in the video below

The Allier has already recovered its natural profile, as shown by the photo taken in the old reservoir after the emptying.

Upstream of the Poutès dam (inside old reservoir), 11th of June, the Allier regains its natural character for ever © SOS Loire Vivante – ERN

On the 12 of June, a major flood occurred on the Allier (400m3/s at Poutès against 16m 3/s for the module), it crossed the dam without constraint. The warning systems of the Cristal network were effective. The works were suspended and the platform created to work at the foot of the Poutès dam could be evacuated in time without affecting the equipment or the men!

The June 12 flood passes the Poutes dam without constraint © EDF

More info on Poutes dedicated page

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