25.10.2022
In the Var department, Eiffage Génie Civil has built two ecoducts under the A8 and A57 motorways
We headed for the Var department, in the commune of Le Luc (83), where Eiffage Génie Civil's network teams have successfully completed two ecoducts. These crossings are designed to facilitate the movement of small and medium-sized local fauna, in particular hares, foxes, badgers, martens, snakes and amphibians under the A8 and A57 motorways.
In order to limit the impact on the flora and fauna of the construction site, the footprint was reduced as much as possible by installing the equipment lengthwise in narrow strips on the edge of the motorway.
The creation of these ecoducts in reinforced concrete pipes, in the motorway embankment, required the use of a micro-tunnelling machine. The heterogeneity of the geology encountered made the operations particularly delicate and the sinking was carried out from the surface using an atypical thrust station.
This project was carried out in partnership with the Gagneraud group. Thanks to our client Vinci Autoroutes. Project management: TRACTEBEL.
-
03.06.2026Three new service quays completed in Grand-Lahou, Côte...Our Eiffage Génie Civil Marine teams have finalized the construction of three new service quays, each measuring 20m x 12m. -
29.05.2026Toulouse metro: TBM Jeanne Marvig completes its second...The Jeanne Marvig tunnel boring machine (TBM) has successfully completed its second breakthrough, breaking through the diaphragm wall of the future Fontaine Lumineuse... -
12.05.2026The first tunnel boring machine for the Line 15 East-1...In Bobigny on Monday, May 11, in the presence of Stéphane Troussel, Laurent Simplicien, Abdel Sadi, Stephen Hervé, Jean-François Monteils, and Guillaume Sauvé, the...