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Large-scale repairs and safety operations

2 juin 2016

The ageing of the infrastructure has necessitated various repairs. As an example, the reinforced earth wall needed to be bolted :

> On the sea side of the road, the wall has an average height of 6 m (3 m for the two central walls). To counter the preoccupying corrosion of the metal structure (aluminium strips) bolts were inserted over the whole length between 1996 and 1999.

Various bolting and concreting operations were also carried out between 2008 and 2010 over eight sections (to combat erosion at the foot of the wall). It is planned to carry out new maintenance work, costing €3.4 million, in 2014.

Clearing and reparation works following large-scale rock-falls are not accounted for here. Safety operations, such as those carried out between 2006 and 2008, represented a cost of €83 million (440,000 m² of nets and 55,000 m³ of additional gabions). A new phase of work, at a cost of €55 million, is now planned. The DEAL (Regional Department of Environment, Planning and Housing) is currently examining the application and the enquiry could be launched by the end of the year.