Our craftsmanship in Sweden
From the early beginnings in Hardinxveld to the waters of the Stockholm archipelago. After months of intensive work, it is always a special moment to see a project at its final destination.
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Building a world wonder together
The Oosterscheldekering is sometimes called the eighth Wonder of the World. Designed in response to the North Sea flood of 1953, the signature project of the Dutch Delta Works was completed in 1986. An unprecedented storm surge barrier with 65 concrete piers and 62 gates. Eleven contractors joined forces to deliver it, including Ballast Nedam, Boskalis and Van Oord.
One of the purpose-made vessels for this project was Cardium, the behemoth on this photo. Cardium flattened the sandy seabed and unrolled massive pre-fabricated mats packed with sand, gravel and stones, so that each pier could stand rock solid for centuries. Up front sat a 44 meter wide suction arrangement, totalling about 7,000 kW of suction power that gave each mat a leveled seat. The under-mats were roughly 42 × 200 m and 36 cm thick. Handling rolls of that scale demanded tight control of speed, tension and alignment from the electrical drives and winches supporting the lay system. Careful depth measurements determined the exact shape and thickness of the layers of mats that followed. Cardium then placed those made-to-measure additional layers on top to complete the storm surge barrier's foundation.
Van der Leun delivered the electrical installation for this incredible vessel.
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Great Work, Great Benefits
A good employer sees not only what you can do, but also who you are. At Royal Van der Leun, you have the freedom to organize your workday smartly, take training courses, and still have time left for relaxation.
We believe it’s important that you feel good both mentally and physically. That’s why we offer solid employment conditions along with great extras.
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Back in 1920: The Harbor's Lightbulb Shop
In 1920, Jan Cornelis van der Leun opened his shop at the harbor of Sliedrecht. Radios and electric lighting were still new and remarkable at the time. What began with providing light and sound soon grew into creating solutions for the shipping industry and the emerging dredging sector.
That hands-on, problem-solving mentality is still at the heart of our work today.
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