French construction company Effage announced that its Lise-Enjalbert tunnel boring machine (TBM), working on the Toulouse Metro tunnel, is on track to reach its next stop.

Lise-Enjalbert started its 4.2km excavation from Ponts-Jumeaux station towards Puits Laporte and is set to halt at the future Sept Deniers – Stade Toulousain station.

In November last year, Eiffage transported its Lise-Enjalbert TBM from its refurbishment workshop in Thieux, for excavation at Toulouse.

The TBM’s assembly, including its five trailers, are expected to be completed progressively as it advances, allowing it to reach full operational capacity.

The TBM has been operating in partial mode to accommodate the tunnel’s initial structure, similar to the earlier TBMs, Jeanne-Marvig and Berthe-de-Puybusque.

Jeanne Marvig is continuing on its 4km excavation from Colomiers Gare Shaft to Laporte Shaft, aiming for its first breakthrough by year-end.

Berthe de Puybusque, christened on 31 October at the future La Vache Station, has started its 2.5km journey from La Vache – Le Grand Marché Station to Ponts-Jumeaux Station.

The French construction company said all three of its TBMs are currently in operation.

The Toulouse Metro Line C project involves building a new 27km metro line in the Toulouse metropolitan area, with 21 stops, including five interconnections with railway stations.

It is expected to offer a clean mobility solution to more than 200,000 inhabitants per day.

The new metro line is expected to decarbonise the transport sector by avoiding 28,700 tons of CO2 each year and strengthen the mobility offer for commuters.