Introduction Images of 150 years DEME, ending with a view on hashtag #DEME150.

Discover 150 years of DEME!

In 2026, DEME celebrates 150 years of marine and environmental engineering. From our early roots in 1876, we have grown from our origins in dredging and marine works into a leading, diversified group - shaped by expertise, innovation, resilience and a constant drive to push boundaries. 

Throughout this anniversary year, we’ll take you on a journey through our history, sharing stories and moments that show how challenges were approached, solutions were developed and ambitions kept moving forward. Across our channels and on this dedicated anniversary website, you can discover the people, projects and breakthroughs that made DEME what it is today. This website will be updated weekly with new stories. Throughout the year, we will use #DEME150 to share and connect these stories. 

As we reflect on 150 years, we continue to look ahead with the same spirit that defines us: We Care. We Dare. We Deliver.

1979

Turning the tide on the River Scheldt

To master the world's seas, you must first master the river on your doorstep. For DEME, the River Scheldt was never just a waterway. With its shifting sandbanks, strong tides and demanding navigational conditions, the river was a constant test of engineering skill and ingenuity.

By the late 1970s, a new challenge emerged. The dredging vessels operating on the river were becoming increasingly larger and more powerful, but both the Scheldt and the client's requirements called for a different type of vessel: they had to be capable of combining high production with exceptional maneuverability and a remarkably shallow draft.

In 1979, a different kind of dredger entered service. The trailing suction hopper dredger Schelde II was designed specifically for the challenges of the Scheldt, integrating efficiency, mobility and a shallow draft in ways that had not been seen before. Later vessels such as Orwell and Antigoon would be built using the same approach.

These vessels introduced a range of innovations, from advanced bottom-door systems for accurate discharge in shallow areas to improved overflow systems that reduced turbidity. What began as a local challenge on the Scheldt evolved into a technological leap that would influence dredging operations far beyond Belgium.

Disclaimer

With 150 years of history, there are countless moments to tell. In this anniversary year, we share a non-exhaustive selection of stories that illustrate how DEME became the company it is today. These stories are drawn from a variety of historical sources, including books by authors such as Dirk Podevijn and Mon Vanderosteyne, company publications and the input of colleagues across the organization. As this website looks back on 150 years of heritage, it features archival material from different eras. Safety standards and working practices have evolved significantly over time and should be understood in their historical context.