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West-East tramway line, Nice, France2023-08-11T18:00:42+02:00

Project Description

Contexte of the project

It will only take 26 minutes to travel from Nice Cote d’Azur Airport to the port in Nice via the city’s new 11.3km tramway with 20 stops.

Description of the project

The Nice Côte d’Azur Metropolitan Authority awarded the main civil engineering contract on the future line 2 of the tramway to the Thaumasia consortium.

Our solution

Soletanche Bachy France, working with Soletanche Bachy Tunnels and Bessac, alongside others within the Thaumasia joint venture, carried out surveys and civil engineering works for the 3.2km underground section under a contract involving a 9.8-metre-diameter bored tunnel, four underground stations, entrance and exit shafts, fittings and finishing, equipment, and testing. The tunnel is being built to efficiently serve the city centre while safeguarding its architectural heritage.

Soletanche Bachy faced the challenges of complex geology with highly variable soil and a small construction site in the centre of the city with shallow foundations and particularly sensitive built structures.

Type of project:

Railway infrastructure

Railway infrastructure

Location :


Subsidiaries of Soletanche Bachy: 

Project owner:

Prime contractor:


Bouygues TP, Bouygues TP RF, Colas/Snaf, Soletanche Bachy France, Soletanche Bachy Tunnels, Bessac

Works period:

03/2014 – 12/2019

Types of techniques:

Diaphragm wall icon

Diaphragm wall

Icon jet grouting

Jet grouting

Icon grouting


Icon traditional tunnel

Traditional tunnel

Icon mechanized tunnel (TBM)

Mechanized tunnel (TBM)

Key figures of the project

of underground works
diameter bored tunnel

Related techniques

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