---
title: Digging starts on line 15 East of the Grand Paris Express
url: "https://www.systra.com/en/news/digging-starts-on-line-15-east-of-the-grand-paris-express/"
type: post
date_published: 2025-10-21
date_modified: 2025-10-21
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language: en-US
word_count: 393
reading_time: 2 min
canonical: "https://www.systra.com/en/news/digging-starts-on-line-15-east-of-the-grand-paris-express/"
featured_image: "https://www.systra.com/wp-content/uploads/2025/10/img_8512-scaled.jpg"
categories:
  - Non classé
---

# Digging starts on line 15 East of the Grand Paris Express

![Digging starts on line 15 East of the Grand Paris Express](https://www.systra.com/wp-content/uploads/2025/10/img_8512-scaled.jpg)

The second TBM for line 15 East, christened Marine on 25 September after Marine
Dondel, project manager for the Aubervilliers sector at the Société des Grands
Projets (SGP), set off on 13 October from the Agnès shaft, located in
Aubervilliers in northern Paris, at a depth of 25 metres. Its mission? To dig
the 5-km tunnel for Package 2 of line 15 East, connecting Bobigny and the
Normandie-Niemen structure by the end of 2027. This is the first section of line
15 East to be excavated. In 2022, the TBM Sarah had dug 2.4km of tunnel, from
the Agnès shaft to the Finot structure in Saint-Ouen.

The Marine TBM, the 32nd to be deployed on the Grand Paris Express, was
custom-designed to cross the complex and heterogeneous geology of the
Aubervilliers – Bobigny section, while reusing components from older TBMs that
have operated on the GPE in order to recycle the machines, extend the life of
the equipment and reduce costs in line with a circular economy approach.

![301072-puits-agnes-assemblage-de-la-roue-de-coupe-du-premier-tunnelier-de-la-ligne-15-est-bastien-andre](https://www.systra.com/wp-content/uploads/2025/10/301072-puits-agnes-assemblage-de-la-roue-de-coupe-du-premier-tunnelier-de-la-ligne-15-est-bastien-andre-660x660.jpg)

_Assembly of the cutting wheel before its entry into the Agnès shaft, prior to the christening on 25 September_

## A new chapter begins for the ATMO project

Our teams are involved in the major Technical Project Management Assistance
(ATMO) project for lines 15 East and 15 West of the GPE.

The ATMO project, won in mid-2019, is the largest urban project ever undertaken
by SYSTRA France. Its objective is to complete line 15, which is entirely
underground and runs as a ring around the inner suburbs of the greater Paris
region, with the western and eastern sections connecting Pont-de-Sèvres station
to Champigny-Centre via Saint-Denis – Pleyel. SGP has opted for a new type of
contract for a project of this complexity, namely a design-build contract, with
SYSTRA France assisting at every stage of the project, which is scheduled for
completion at the end of 2031.

Photos: Société des grands projets, SYSTRA

![header_grand_paris-express](https://www.systra.com/wp-content/uploads/2020/06/header_grand_paris-express-1024x617.jpg)

_projects Grand Paris Express (Lines 15, 16, 17 and 18) – France Read more sur Grand Paris Express (Lines 15, 16, 17 and 18) – France_

**Categories:** Non classé