The sand engine (also called Sand Motor) is an experiment in the management of dynamic coastline. The first one was run off South Holland in the Netherlands. A sandbar-shaped peninsula was created by humans; the surface is about 1 km². It is expected that this sand is then moved over the years by the action of waves, wind and currents along the coast. To protect the West of the Netherlands against the sea, the beaches along the coast are artificially replenished every five years, and it is expected that the sand engine will make replenishment along the Delfland Coast unnecessary for the next 20 years. This method is expected to be more cost effective and also helps nature by reducing the repeated disruption caused by replenishment.
Ter Heijde, Netherlands