30072019- Station pompage Cherbourg

The Homet pumping station delivered to Cherbourg

Infrastructures Division

The Hydraulics & Reservoirs Division of Eiffage Génie Civil, leader of the Equipment package, worked in a consortium to design, install and commission the Homet pumping station in Cherbourg. Built for the French Ministry of the Armed Forces - ESID Rennes, this installation will be used to dismantle nuclear submarines.

The teams carried out the installation of:

  • 6 drainage pumps of 285 kW (8 TB each) 
  • 3 x 50 kW dewatering pumps tested on a vibrating table and qualified as an important element for nuclear safety (EIS)
  • DN800 GRE and DN280 HDPE pipes on the screen wall
  • 1 EIS qualified 3 m x 3 m wall valve
  • 8 earth valves DN 800 installed in confined spaces, including the reworking of existing inserts

This €5 million project involved our co-contractors Eiffage Energie Systèmes Basse Normandie, for the electricity and automation aspects, and Efinor for the seismic support and calculations.

The first phase of the Equipment works package was handed over to the customer in July 2019 to his satisfaction; the entry of the Saphir nuclear attack submarine (SNA) took place as planned on Monday 8 July 2019.  

Photo credit: Ministry of the Armed Forces