Belgium, July 2 -- Commissioned by Rijkswaterstaat, Jan De Nul is conducting a practical test in the Westerschelde estuary. From June until the autumn, Jan De Nul will be bringing in a million cubic metres of North Sea sand to protect the coast against rising sea levels. During and after installation, sediment movement and what effects it has on the seabed is investigated, the Company said.Research into sustainable replenishmentClimate change is causing sea levels to rise, which also affects the safety, nature and accessibility of the Scheldt estuary. To protect the coast and hinterland, it is necessary to nourish the coastline with sand. This allows the coast to rise with the sea level. The delivery of one million cubic metres of North Sea...