The contract, awarded by Tisséo, the public transport authority for Greater Toulouse, includes drilling 3.8km of tunnel beneath a densely populated urban area, as well as civil engineering work for the construction of four underground stations at a depth of 24-39m, and three ancillary structures.
The joint venture has proposed using the variable density conveyor method, a tunnelling solution that will help mitigate the challenges of different soil conditions. BIM is being used for project planning and execution.
The 50/50 joint venture has also placed emphasis on sustainability. Fibre-reinforced concrete segments will reduce the project’s carbon footprint, while trees on the site will be protected and preserved during the construction period. In addition, 98% of the excavated material will be recycled.
Line C will run from Colomiers to Labège and open at the end of 2028. The project will last 57 months and has a total budget of €331.4m (US$353.5m).
