Here are some pictures of the second cofferdam put in place on April 20th. The cofferdam is made in 3 parts, weight of a panel between 3 tons and 3.5 tons, its height is about 5 m.
the gap between the two cofferdams will allow work at the bottom of the door.
A cofferdams is a dam intended for the temporary retention of water at a given location on a given surface.
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