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.


Registration open for the Seminar on Dredging & Reclamation in Delft: 1-5 July 2024

Learn the basics of dredging from experienced lecturers and complete a tender process from start to finish!

02 April

Out now: Terra et Aqua #173

Read the latest issue of Terra et Aqua featuring articles covering dredging projects as well as the topics of safety, socio-economics, technical innovations and the environment.

25 March

Submissions for the IADC Safety Award 2024 now open!

Safety awards for dredging companies AND supply chain organisations.

28 February

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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.


Published March 2024
Editorial: Knowledge is king

Frank Verhoeven, President of IADC, shares his thoughts on todays’ issues related to the dredging industry and introduces the articles in this issue of Terra et Aqua.

A new method to economically evaluate adaptations pathways
Authors: Maria Montijn

The consequences of climate change are becoming more apparent and mitigation measures alone are no longer sufficient to prevent its impact. Investing in adaptation measures has become inevitable. However, the uncertain future conditions and the high associated investment costs puts pressure on making the best choice. Adaptive pathway planning is considered as a promising approach to develop flood risk reduction strategies that can adapt to changing circumstances. However, limitations in the existing evaluation methods pose challenges in the choice for the best strategy.

Optimising real-time dredge monitoring systems with acoustic sensors

Driven by an increasing population, global maritime trade activity is at an all-time high. To keep up with demand, larger vessels and expanded port facilities are being built. Larger vessels, particularly container vessels, often require multiple expansion projects, such as expanding turning basins, widening shipping channels and digging deeper berths. These port expansion projects often require dredging to ensure the upgraded facilities can handle vessels of any size. However, dredging in the maritime industry is continuous, expensive and resource intensive. To meet evolving demands while remaining economically viable, tools that increase dredging efficiency need to be evaluated and incorporated into dredging operations.

Dealing 极速赛车官方开奖结果平台只需一分钟快速查询记录 with computational innovation in dyke reinforcement projects
Authors: Joppe Vugts

Since 2023, the Dutch government no longer prescribes which calculation models must be used in the assessment of dykes. The water boards themselves must determine which method they use to calculate the probability of flooding. This enables the development of calculation innovations. Following various dyke assessments, the largest safety risk is caused by the failure modes of slope stability and piping, therefore substantial investment is being made to better understand these failure modes. In our research, we found a way to deal with computational innovation in dyke reinforcement projects by applying specific innovations and looking at their general implementation.

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.


IADC has over a hundred main and associated members.


Dredging in Figures 2022

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

DOWNLOAD PDF Document | 1,42 MB

Annual Report 2022

In this “Annual Report” the Board gives an overview of the state of affairs of IADC and its activities in 2021. The report highlights various projects that the Association has undertaken for the year.

DOWNLOAD PDF Document | 1,54 MB

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