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LISEA was awarded the concession contract for the Tours-Bordeaux HSL (South East Atlantic (SEA) project). Under this contract established in June 2011 by SNCF Réseau, LISEA is responsible for funding, designing, building, maintaining and operating the new HSL until 2061 (for 50 years).

A major project designed to develop the local economy and enhance the appeal of the South West of France.


The Tours-Bordeaux HSL is part of the
Government’s priority programme to build 2,000
km of new high speed lines by 2020 under the 3
August 2009 Programming Act passed following
the Grenelle Environmental Agreements.

LISEA shareholders include VINCI Concessions (33,4%), the Caisse des Dépôts et Consignations (25,4%), Ardian investment funds (19,2%) and Meridiam (22%)

LISEA shareholders include VINCI Concessions (33,4%), the Caisse des Dépôts et Consignations (25,4%), Ardian investment funds (19,2%) and Meridiam (22%).

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Shorter journey times

  • A journey time between Paris and Bordeaux of 2 hours compared to the current time of over 3 hours
  • Synergies between high speed and regional express lines
  • Integration of high speed lines into mobility ecosystems

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July 2017

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Expected Ridership/year:

approx. 20 million passengers

  • Half of the new companies created in the Bordeaux region chose Bordeaux because of the construction of the HSL
  • 60% of households and businesses expect to travel more often to once the HSL has been built
  • Over 70% of households and businesses in South West France intend changing their habits and using the HSL

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Modal shift

90% of households and businesses will use the train as opposed to air travel once the SEA HSL is commissioned.

Source: opinion poll conducted by COHDA on behalf of LISEA in 2014.

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A 5-year project

  • A total of 320 km of track: 302 km of trunk line (CWR) and 38 km of connecting spurs
  • 500 tunnels & bridges, 19 viaducts and 7 cut and covers

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  • Up to 9,000 people worked on the construction of the line,
    2,000 of which were recruited locally.
  • MESEA created 170 new maintenance and operation jobs.
  • A partnership with local employment agencies meant that 10% of the hours worked on the project were devoted to social inclusion programmes.
  • For every job created directly by the project, one extra job was created at supplier or sub-contractor level + 0.44 jobs at local level (services, accommodation, catering)

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Environmental measures

  • Protecting 223 different types of plants and animals
  • Reinstating 3,500 hectares of natural habitat.

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€7.8 billion, half of which came from the private sector.

Major project phases

2011 – 2012

Signature of the concession contract. Consultation, study and design phases and regulatory approvals Geotechnical and archaeological surveys (site searches)


Land acquisition Managing diversions during construction work

2012 – 2015

Infrastructure and civil engineering work (earthworks, tunnels, bridges & viaducts, track bed)

Mid 2014- Mid 2016

Railway equipment (tracks, overhead contact systems, power, signalling, communications)

2016 – 2017

Testing, working a shadow service and commissioning

Summer 2017

Commissioning of the HSL

LISEA is committed to providing support to the regions

Thanks to its 50-year concession contract on the Tours-Bordeaux HSL, LISEA can provide long-term support for the regions in the HSL corridor. LISEA aims to limit the impact of the line on the natural environment and promote local economic development. The very first studies revealed problems associated with preserving natural habitats and protecting species so mitigation measures were incorporated into the design stage to minimize the impact of the infrastructure on the surrounding environment.

The LISEA Carbon and LISEA Biodiversity Foundations

In addition to its commitments to the State, LISEA also set up two foundations: the LISEA Biodiversity Foundation, to preserve natural heritage sites; and the LISEA Carbon Foundation, to promote energy efficiency and reduce greenhouse gas emissions. These foundations are very active. Every year from 2012 – 2017, these two Foundations have backed the creation of new projects along the high speed corridor, investing up to €5 million each. (More)

Creation of a socio-economic Monitoring Unit by LISEA

Following the creation of this Monitoring Unit in 2012, LISEA undertook to assess, evaluate and publish information on the social and economic impact this high speed line will have on regional development up until 2027 in order to help local stakeholders determine their economic development policies.  (More)