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Dunkerque LNG

3 × 190,000 m³ LNG tanks

At a glance

Three 190,000 m³ full containment LNG tanks, each with a 9% Ni steel inner tank and a post-tensioned concrete outer containment, Ø 92 m × H 51 m.
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Cubic meters
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years de construction
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Delivery

Contract

EPC, consortium Entrepose Contracting / Bouygues TP (Entrepose lead partner, ≈ 60%)

Project owner

Construction

Oct. 2011 – Mar. 2015 (42 months); commercial operation Jan. 2017 2017

Location

Loon-Plage, Port of Dunkirk (France)
Project presentation

Context & challenges

Dunkerque LNG is one of the largest LNG terminals in continental Europe, with an annual regasification capacity of 13 billion m³ (around 20% of French and Belgian demand). Located within the Grand Port Maritime de Dunkerque, the site has a strategic position between the English Channel and the North Sea, enabling direct connections to national networks.

The project, delivered by Entrepose Contracting in consortium with Bouygues TP, covered EPC for three of Europe’s largest tanks as well as all associated external electro-mechanical facilities, increasing complexity and scope, including:

  • approx. 65,000 inches of stainless steel piping
  • 1,000 tonnes of steel structures
  • 92 km of electrical cables installed for instrumentation and power supply

Technical challenges & responses

  • Operating port site: close coordination with port activities and integration into the Dunkirk industrial ecosystem; rigorous phasing.
  • Very large-capacity assets: among the largest tanks ever built in Europe, requiring advanced methods (slipforming, pneumatic dome lifting).
  • Environmental constraints: protection of the marine environment and surrounding wetlands; strict environmental measures throughout the project.

From construction to integrated EPC expertise for the energy of tomorrow

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