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Major projects 2019: the extension of Monaco to the sea

26/06/2019

Major projects 2019: the extension of Monaco to the sea

The Principality of Monaco is in full swing ! Year after year, the "Rock" continues to attract many tourists but also people wishing to live there. This is why the Princely Government is setting up major projects that will take many years to complete!

The urbanization project at sea: an essential extension of land

Monaco is one of the smallest independent states in the world, but it is also one of the most densely populated. Indeed, Monaco's surface area is almost totally urbanized. The princely government therefore turned to a strategy of expansion on the sea. It is therefore on the site of Anse du Portier that a 6-hectare district will appear after 8 years of work.

Major works with a high ecological stake

Above all, it is a project with a high stake for the marine environment, which requires new methods to limit the impact on marine fauna and flora. At the end of 2016 and the beginning of 2017 were periods intended to preserve protected species such as the great mother-of-pearl or the Posidonia meadow that had to be transplanted, (they are essential for the survival of an entire ecosystem). It is therefore thanks to a crawler excavator installed on a pontoon equipped with a 27-metre long arm at the end of which is a transplanter that picks up and places clods in biodegradable baskets to be able to carry out their transplants. Sediment transfer is also carried out. Care must also be taken not to increase turbidity, which can be caused by pollution or different materials and can have a negative impact on fish gills.

A worksite by sea with adapted construction machinery

As a result, heavy dredging work is being done and rockfill layers are also being removed. All operations are carried out by sea, using excavators on boats. Once the bottom is exposed, the backfilling phase begins. The backfill materials come from quarries and are transported by sea to be deposited as close as possible. The compaction is then carried out using floating devices and the adjustment is made using an underwater leveller.
Then come the manufacture and delivery of reinforced concrete caissons weighted with quarry materials to create the neighbourhood's protection belt. Then the construction of the median starts with the marine sand transported by dump trucks, moved by bulldozers and loaders. Finally, this median is compacted thanks to graders and various tandem compactors.

The installation of many buildings and installations for an eco-neighbourhood

This site will be able to accommodate the 60000 square meters of space planned for housing and shops. This will include an extension of the Grimaldi forum, a public car park, an entertainment port and a green park. The city and the builders want this project to be seen as a natural extension of Monaco. They brought together many architects and collaborated with environmental specialists to create this modern and environmentally friendly future eco-neighbourhood. The Princely Government also has other major projects in the pipeline, such as the Princess Grace Hospital, winter sports... These projects confirm the desire to modernise the city's buildings and extend ever further over the sea. This innovative project should be completed in 2025.

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