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.


IADC and IHE extends collaboration with new agreement

IADC and IHE extends collaboration with new agreement

31 January

Save-the-date: 18 October, Ho Chi Minh City, Vietnam

Save the date! IADC and PIANC organise a one-day conference in Ho Chi Minh City, Vietnam on 18 October.

12 January

Out now: Terra et Aqua #172

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.

21 December

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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 December 2023
Study of slurry transport characteristics in a jet pump

In this study, the computational fluid dynamics (CFD) analysis method was used to simulate the mixing and transportation  characteristics of water and mud in a jet pump. By observing the fluid mixing law in the mixing chamber, throat and other structures,  the internal flow field distribution of the jet pump under different working conditions was compared and studied. As a result, the internal flow details and operation performance curves of a certain size jet mud pump were obtained. It provides theoretical support  for the optimisation design of a slurry jet pump in dredging engineering.

Boskalis eliminates risk of implosion with new design for water box

Alongside pumping sand, managing the water level in the landfill is an important aspect of a dredging project. A water box, a metres-high structure in which planks can be positioned manually to keep the water at the desired level, is indispensable for this work. Boskalis recently won the Safety Award of the International Association of Dredging Companies (IADC) for its new, modular and, above all, safer design that eliminates the risk of incidents.

Modernisation of the Świnoujście – Szczecin fairway

The idea of a modern maritime access route from the Baltic Sea to the Port of Szczecin in Poland was already born towards the end of 20th century. Quay walls in the neighbouring Port of Police, built in the 80s, were already constructed to accommodate a depth of 12.5 metres and initial modernisation works commenced in the early 90s. On 28 September 2018 the “Modernisation of the Świnoujście – Szczecin Fairway to a depth of 12.5 m” became a reality with the signing of the design and build contract between the Maritime Office Szczecin and the DIVO consortium (Dredging International NV and Van Oord).

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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