DUC Marine Group in-water-survey (IWS) approval

Ingenuity and experience: a perfect combination

DUC Marinegroup is certified by Bureau Veritas and Lloyd’s Register to conduct In Water Surveys (IWS). IWS can be performed in lieu of periodic docking surveys on ships and Mobile Offshore Units.

The In-water Survey is intended to provide, as far as practicable, the information normally obtained from a docking survey.

Surveys are monitored and recorded by experienced divers in communication with the Class-Surveyor. A full written report and copy of video/still photos are submitted after the survey.

  • Making a condenser pit watertight

    MAKING A CONDENSER PIT WATERTIGHT Tunisia, Middle East In 2004 in Tunisia, DUC Marinegroup used shotcrete injection to repair and apply a watertight layer to a […]
  • Replacing oil pipeline Israel

    REPLACING OIL PIPELINE IN ISRAEL Ashkelon, Israel   In Israel (Ashkelon), DUC Marinegroup helped with the replacement of two 1500-m sections of pipeline. These oil pipes ran […]
  • 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 […]
  • Wall thickness measurements in Georgia

    WALL THICKNESS MEASUREMENTS IN GEORGIA Georgia, Europe At the end of 2011, DUC Marinegroup performed wall thickness measurements on a quay wall made of sheet piling […]
  • 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 […]
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