Civil engineering - France

Croix-Rousse tunnel in Lyon

Connection of the ventilation shaft
Connection of the ventilation shaft - © VINCI and subsidiaries

The Croix Rousse tunnel restructuring project consists in creating a second tube connected by cross-galleries with the existing tube and in upgrading the existing tunnel to safety standards. The second tube will be reserved for public transport and green  modes (bicycle, roller-skate, etc.) and will be accessible to people with reduced mobility. It is designed as a new, welcoming urban space and will be fitted with special equipment (lighting, projections, etc.). 

A comprehesive information system comprising a quarterly publication, newsletters and a website has been introduced, notably for the local community. On 15 September 2011 the project reached a new milestone with the breakthrough of the second tube. 

The tunnel rehabilitation project got under way in December 2012. The new phase requires the closure of the tunnel for a period of 9 months, ending in the summer of 2013, to allow for such works as asbestos removal, interior demolition, waterproofing, pavement laying and equipment installation. 

Worksite synergies
Awarded to the Group in 2009, the project brings together, for structural works: lead company Dodin Campenon Bernard (VINCI Construction), Chantiers Modernes Rhône-Alpes (VINCI Construction France) and Spie Batignolles TPCI; and, for technical equipment, two business units from the Energy business line: GTIE Transport (VINCI Energies France division) and Cegelec Infrastructures & Mobility (Cegelec GSS division). The design studies teams from VINCI Construction Grands Projects and CMS and Delair CFD (VINCI Construction France subsidiaries) and Cardem Lyon (Eurovia) are also involved. The design works package was awarded to the Setec design office and the architectural works package to the Strates and Vergely firms. 

The tunnel is scheduled to open at the end of 2013.

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