Extension at Monaco sea: One-third of the concrete caissons in place

On Wednesday, February 13th 2019, Eiffage Génie Civil Marine teams successfully completed the installation of the sixth out of 18 concrete caissons for the future offshore extension of Anse du Portier in Monaco.
It was necessary to respect a tolerance of 15cm to install the caisson of 11 000 tons. It’s length and width measure 30m, which culminates to 25m of height: the equivalent to a building of 8 floors high.
In the long term, this extension will gain around 6.5 hectares of new land into the sea.