Extension of Métro Line B in Lyon due to start in Autumn 2018
SYTRAL, the transport association for Rhône Department and Lyon, has commissioned Implenia (lead-manager) and Demathieu Bard to build Lot GC 01 of the Métro Line B extension in Lyon. Each company has a half-share in the project consortium, and the contract is worth around 138 million euros.
Lot GC 01 includes a 2.4 km long tunnel, a new Métro station in Oullins Centre and the start shaft at Saint-Genis-Laval. The tunnel, approximately 8.5 m in diameter, is excavated with a TBM. From 2023, the tunnel will connect Métro Line B to two new stations, one at Oullins Centre and another at Saint-Genis-Laval/Hôpitaux Sud, which is being built as part of Lot GC 02. The geological conditions are well understood thanks to various test drillings, but tunnelling in an urban environment remains a technical challenge. Implenia is proud to be providing its resources, as well as its experience and expertise in working beneath built-up areas, to this demanding project. Construction is due to start in autumn 2018 and will take about four and a half years to complete.