Line 14 North: The Yolène tunnel boring machine has broken through the last concrete wall

12 Jun 2018

On 3 May 2018 the Yolène tunnel boring machine finished digging the 3.6 km of tunnel between the Saint-Lazare and future Clichy - Saint-Ouen stations.

On 3 May at 11.06 a.m. the Yolène tunnel boring machine of line 14 North work section 1 brought down the final concrete wall separating it from the future Clichy - Saint-Ouen station.
It thus completed the final section of the 3.6 km of tunnel between the Saint-Lazare and future Clichy - Saint-Ouen stations included in the building project, part of which had been previously dug by the Magaly tunnel boring machine.
The Yolène tunnel boring machine will now be taken into the station where it will be dismantled and then transferred to the line 14 south GC03 building site of which RAZEL-BEC is the representative. Once restored to its original condition it will excavate 4 km of tunnel.

RAZEL-BEC is responsible for the civil engineering work to extend line 14 over the section between the Saint-Lazare and future Clichy - Saint-Ouen stations, namely:
-    3.6 km of tunnel
-    First 2 stations of the extension of line 14

Client: RATP & Île-de-France Mobilités
Contractor: SYSTRA
Due to be commissioned: 2019

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