DREDGING AND REPLENISHMENT KEEP LAND ACCESSIBLE AND SAFE

Sand and silt are constantly settling in waterways and harbors. Dredging is necessary to keep the waterways and ports accessible and safe for ships and to ensure that the water can flow properly to prevent flooding. Replenishment on the other hand is the replenishment of sand in places where it is needed. For example, on the beach or in the dunes to protect us from the sea.

Dredging specialist
Dredging and beach replenishment are among our areas of expertise. We carry out dredging and replenishment projects not only in the Netherlands, but throughout Europe. Among others, we are active in France, United Kingdom, Ireland, Poland and Germany. Both on inland waters and at sea.

Wide diversity of equipment
The various dredging activities each require a unique approach. The environment and space for execution strongly determine our working method. Thanks to our wide range of equipment, we are able to carry out virtually any type of dredging work. Also for example in (smaller) ports and shallow channels. Our fleet includes hopper and cutter dredgers, but also crane ships, workboats and hydraulic cranes on pontoons. From our many years of experience, we know exactly which equipment is best suited to tackle a dredging project in the right way.

Dredging in inland waters
In addition to dredging at sea with our hoppers, we perform a large part of our dredging activities on rivers and canals. The list of European waterways where we are currently actively dredging or have dredged is endless. We keep them at depth by dredging throughout the year.

Of course, we take care of the entire process, such as conducting water bottom surveys and soundings. To this end, we have our own survey department at Van den Herik. .

For example, our dredging expertise also comes into its own in France. Together with our French subsidiary Eco Systèmes de Dragage, we have kept several seaports in Normandy at depth in recent years.

These include the ports of: Dieppe, Ouistreham, Fécamp, Deauville-Trouville, Port-en-Bessin-Huppain, Grandcamp-Maisy and Le Tréport.

The work was carried out using a hopper dredger and a crane pontoon. These ports have many port activities that could not be disturbed. There is also a large tide difference: an average of 5 to 6 meters! The work therefore required a tight logistical planning.