The dock protecting the tourist harbour on the East side of the "Nouveau Quartier", ha s an infrastructure made of 5 reinforced concrete cellular cassions built in the shipyards of Grandi Lavori Fincosit in Genoa, they are protected on the sea side by a series of blocks that weigh 15 tons each

The retaining dam was built in front of the coast to create an embankment from the sea, of about 29 hectares of the "Nouveau Quartier de la Fontvieille", and on both sides of the two tourist harbours of Fontvieille and Cap d'Ail.
The dam, that is 930 m. long, has an infrastructure made of 35 reinforced concrete cellular cassions that were built at the Grandi Lavori Fincosit’s shipyards of Genoa and were tugged in the waters of the Principality of Monaco and then sunk into the sea at a depth of 20 m. (37 m. for the maximum bottom) and then ballasted by means of sand.
The structure is shaped with a “damping tank” studied by the Company Soc. SOGREAH of Grenoble, to avoid overflowing.