The International Association of Dredging Companies (IADC) is the global umbrella organisation for contractors in the private dredging industry: an industry that makes the world a safer, better and more sustainable place to live. IADC is driven to help that industry move forward with a variety of activities and publications, all of which can be found on this website.

News

Sustainability factors published together with the 2022 cost standards indexation for dredging equipment

Sustainability factors published together with the 2022 cost standards indexation for dredging equipment

28 June

Suman Sapkota wins the IADC Young Author Award 2022

IADC bestowed the Young Author Award 2022 to Suman Sapkota. The award is given annually to “stimulate the promotion of new ideas and encourage younger men and women in the dredging industry”.

20 May

IADC celebrates 50 years of Terra et Aqua!

IADC Celebrates 50th Anniversary of Terra et Aqua!

16 May

More news

CORPORATE VIDEO

Watch IADC's corporate video.

50 years anniversary edition

This year marks 50 years of Terra et Aqua. To celebrate this milestone, a special anniversary edition will be published in May 2022. This one-off special will take the place of both the spring and summer issues, with the regular autumn and winter editions following later in the year.

Seminars & Courses

To optimise the chances of the successful completion of a project, contracting parties should, from the start, fully understand the requirements of a dredging project. IADC’s seminar strives to provide an understanding of the basics of dredging through lectures and workshops which are given by industry experts in a classroom setting for a hands-on experience.

Publications

Dredging in Figures 2020

Dredging in Figures is an annual review of the global dredging market.

DOWNLOAD PDF Document | 2,5 MB

Annual Report 2020

In this “Annual Report” the Board gives an overview of the state of affairs of IADC and its activities in 2020. The report highlights various projects that the Association has undertaken for the year.

DOWNLOAD PDF Document | 8,34 MB

MEMBERS

IADC has over a hundred main and associated members.

Latest issue

Terra et Aqua is a quarterly publication which aims to disseminate knowledge accrued by global dredging professionals as well as solutions to issues facing the industry. Issues of Terra et Aqua feature articles covering dredging projects as well as the topics of safety, socio-economics, technical innovations and the environment.

 

166
Published May 2022
Shaping the engineers of tomorrow

During his distinguished career as professor of Coastal Engineering at Delft University of Technology (TU Delft), Kees d’Angremond served as head of Hydraulic and Offshore Engineering, chair of the department of Hydraulic and Geotechnical Engineering, and dean of the faculty of Civil Engineering from 1989 to 2001. Now professor emeritus, he still works as an advisor and independent consultant. We invited Kees to a conversation with Stefan Aarninkhof, professor of Coastal Engineering and chair of the department of Hydraulic Engineering at TU Delft, to talk about their careers in the dredging industry and the role of academia in the industry today.

Pipeline design – density wave amplification and slurry dynamics

The effect of density waves and slurry dynamics on slurry pipeline flow assurance cannot be predicted with current slurry pipeline design methods. Current methods are based on steady-state assumptions, assuming that the mixture velocity and density are constant in time and in the pipeline. Therefore, using current design methods a dynamically stable pipeline cannot be guaranteed. Furthermore, new experiments in vertical pipelines show that density wave amplification is possible at mixture velocities far above the critical velocity. This article presents a new temporal design method based on 1D Driftflux CFD, which is able to model growing density waves.

Young Author Award winners: Where are they now?

Each year, at selected conferences, the Conference Paper Committee is asked to recommend a prize winner whose paper makes a significant contribution to the literature on dredging and related fields. Since 1987, IADC has presented 42 Young Author Awards. Curious to see where they are now, we asked previous winners what impact winning the award had on them and their career.

Building a proactive safety culture within a marine contractor organisation

It is hard to imagine a time when safety was not deemed important, when Personal Protective Equipment (PPE) was not used and little was done in the way of prevention. A few decades ago, occupational health and safety was not considered as important for the vast majority of companies. Instead, incidents and emergencies were handled as they occurred, as effectively as possible given the limited technology and resources available. Today, those times have changed. This article explores the progress of health and safety in the dredging industry and QHSSE professionals, Ton van de Minkelis and Christophe Leroy share their experiences in building a proactive safety culture.

50 years of case law that transformed marine infrastructure contracts
Authors: David Kinlan

This article reviews various court cases over the past 50 years and considers their influence on marine infrastructure contracts and the allocation of risk between contract parties. The establishment of case law and legal precedent is an ever-evolving process, it being dependent on claimants to put their disputes through the court process to seek the outcome they desire. It is often a long and costly process. The rise of adjudication in various common law jurisdictions and countries means that often disputes are resolved without recourse to the courts and various industry standard contracts have arbitration as the final and binding mechanism to resolve disputes.

Interview: Marsha Cohen – Editor-in-chief for quarter of a century

As IADC celebrates 50 years of its quarterly journal, it seemed only fitting to speak to its longest standing editor, Marsha Cohen, who stood at the helm of Terra et Aqua for 25 years. We caught up with her at her home in Florida to talk about the highs, the lows and a good dose of serendipity.

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