Un nouvel atténuateur de houle du bassin de plaisance EN

Port-de-Dieppe-Attenuateur-de-houle
Port of Dieppe ®Ports de Normandie
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A new floating breakwater for the marina

Brief overview 

The floating breakwater entered service in 1996 and protects the marina by attenuating the force of the swell and the waves coming from the harbour access channel.  

 

Semi-submersible, the breakwater comprises a line of 7 caissons that rise and fall with the tide, and are held in place by metal piles. The total length of the structure is approximately 95 m.  

 

During construction, the choice was made to build a floating structure riding on piles so as to limit the visual impact. Two of the piles are today unusable and the structure only works with four of the seven caissons. The piles are severely corroded.

 

Ports of Normandy is therefore going to proceed with the replacement of the floating breakwater structure that is currently in service. A consultation with potential contractors was opened in 2020 for the purpose of determining the best solution in terms of technology and budget for the replacement or restoration of the structure. 

 

 

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Attenuateur_houle_Budget

Budget

€3,5 M have been allocated to this project, including €10 K for assistance to the contracting authority, and €5 K for environmental surveys. Funding partners:

  • Ports of Normandy: €2,1 M
  • Normandy Region Council: €1,4 M
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Port-de-Dieppe-Attenuateur-de-houle
@PortsdeNormandie
Atténuateur de houle
@PortsdeNormandie
Atténuateur de houle
@PortsdeNormandie
Port de Dieppe
©Biplan Stephane Leroy
Project schedule
2nd half 2020
Selection of possible contractors
1st half 2021–2nd half 2022
Declaration made in accordance with France’s Water Law
October 2022
Contractor chosen
1st half 2023
Preparations for works
July to december 2023
Works