Solid construction requires a solid partner 


DUC Marine Group has wide expertise in underwater construction projects. We have experience with underwater concreting and grouting, installation of constructions and objects, underwater system maintenance and other construction support. We continually adept to the changing technologies and developments in the maritime sector.

With our versatile equipment, creative solutions and experienced crew DUC Marine Group is available for a wide range of underwater construction projects.Our expertise in civil underwater construction comprises projects such as:

  • Parking garage construction
  • Basements construction
  • Dams and sheet pile cleaning and maintenance
  • Dredging under boat lifts
  • Corrosion prevention
  • Locks and pumping stations
  • Drydocks

For many of these projects we have designed purpose-built equipment and solutions.

Underwater concreting

We specialize in pouring concrete underwater. Underwater concreting is often used for permanent repairs, structure installations and other applications in today’s marine construction industry.  When subsoil water cannot be pumped out of the building site our divers can be employed to pour concrete underwater. This prevents the surrounding area from settling and risky situations are avoided.

Examples of underwater concreting uses are:

•    Structure foundations and slabs
•    Embankment stabilisation
•    Pier and Pylon footings and supplement
•    Pipeline and cable encasements
•    Boat Ramps

  • Removal of grout blocks

    REMOVAL OF GROUT BLOCKS FROM A DIAPHRAGM WALL IN FRANCE Le Havre, France During the construction of a new harbour in Le Havre (France), grout blocks […]
  • Enecogen Rotterdam

    ENECOGEN ROTTERDAM Power Plant, Rotterdam DUC Marinegroup in cooperation with BAM installed two cooling water inlets for a power plant in Rotterdam. This was completed to […]
  • Mauritanian iron ore jetty

    MAURITANIAN IRON ORE JETTY Mauritania, Africa   During a five-year project, DUC Marinegroup performed maintenance to an iron ore jetty in Mauritania, Africa. The jetty was protected […]
  • Inspect, testing and replacing of anodes

    INSPECT, TEST AND IF REQUIRED REPLACE ANODES Port of Rotterdam and Amsterdam, The Netherlands  In the Port of Rotterdam and Amsterdam, DUC Marine Group regularly checks […]
  • M.E.T. pile encapsulation

    M.E.T. Pile Encapsulation Port of Rotterdam, The Netherlands At the Maatschap Europoort Terminal (M.E.T.) in the 7th Petroleum harbour of Rotterdam, DUC Marinegroup together with Henskens B.V. […]
  • Vopak pile encapsulation

    VOPAK PILE ENCAPSULATION Port of Rotterdam, Nederland  At Vopak in the port of Rotterdam, DUC Marinegroup blasted and preserved steel piles in a five-year project by […]
  • Construction parking garage Amsterdam

    CONSTRUCTION PARKING GARAGE MAHLER 4  For the construction parking garage mahler 4 in busy Amsterdam.  we carried out underwater concreting at a depth of six metres.  […]
  • Shell parking garage The Hague

    SHELL PARKING GARAGE  The head office of SHELL is located right in the heart of The Hague. This area having little or no parking facilities, a […]