Major engineering projects now involve the construction of kilometers of offshore concrete barrier walls, which are filled with substantial amounts of sand, earth, clay or rock, often shipped in from far afield. The increased economic importance of coastal zones, especially in East Asia, the Middle East and West Africa, has spurred a rush to stake a claim in this new land for luxury residential, upscale commercial and industrial space.
Today, many reclamation projects in rapidly growing urban centers across the Global South have advanced far beyond a simple dike. Land reclamation now 'a global-scale phenomenon' That's now the case in much of the Netherlands, where around one-third of the country is below sea level and must be artificially drained to keep out the North Sea. Often, when the new coastal land was below sea level, water had to be pumped out over the dikes or emptied through sluices and discharged into the sea.
Soil and stone could also be excavated from the mainland and dumped along the shore or on the coast of existing islands, gradually expanding the land into the sea. In some cases, streams were diverted to carry additional sediment into these areas, building up the land to a higher level.
#Ocean waves images series
Traditionally, this meant building a series of dikes to enclose tidal marshes or shallow offshore waters and draining these enclosures to create dry land. People have been reclaiming land from the sea for centuries, to control flooding and make more space for agriculture and coastal industries.
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