---
title: Grand Paris Metro Line 14
url: "https://www.systra.com/usa/project/grand-paris-metro-line-14/"
type: projects
date_published: 2023-02-22
date_modified: 2023-09-07
schema:
  @type: WebPage
language: en-US
word_count: 131
reading_time: 1 min
canonical: "https://www.systra.com/usa/project/grand-paris-metro-line-14/"
featured_image: "https://www.systra.com/usa/wp-content/uploads/sites/6/2023/02/grand-paris-l14_2-scaled.jpg"
type-market:
  - Rail and Transit
type-service:
  - Tunnels
type-solution:
  - Engineering
---

# Grand Paris Metro Line 14

![Grand Paris Metro Line 14](https://www.systra.com/usa/wp-content/uploads/sites/6/2023/02/grand-paris-l14_2-scaled.jpg)

**SYSTRA is responsible for detailed design of the underground infrastructure for the northern and southern extensions of Line 14.**

The northern extension has 3.5 miles of tunnel and four stations and will reduce
the overcrowding on Line 13 at its northern side. For two of stations–Porte de
Clichy and Mairie de Saint-Ouen, geothermal energy integration was used to
reduce energy consumption and GHG emission. Because of challenging ground
conditions and groundwater, the team continued implementation of ground freezing
for the excavation of the station at Porte de Clichy and Clichy-Saint-Ouen.

The southern extension includes 13 miles of tunnel and seven stations and will
connect Olympiades, the current terminus of Line 14, to the Paris Orly
International Airport. During construction the TBM crossed the airport’s taxiway
and the new passenger interchange station.