Hoek of Holland - Storm surge barrier in the Nieuwe Waterweg
About 5km south of 's-Gravenzande is Hoek of Holland, the gateway port to the Rotterdam harbors
The waterway conneting Rotterdam with the North Sea is appropriately called "Nieuwe Waterweg", meaning New Waterway. At times of storms when sealevel hitting the coast rises above normal high tide level, the Nieuwe Waterweg will automatically be closed by means of two enormous floating steel gates to prevent flooding of the low lands. This storm surge barrier, one of the world's largest moving objects, was the final project of the so called Delta Works, a series of high end engineering projects. The Delta Works now effectively protect the entire south-west delta-like region against the sea. They are able to even withstand a storm during spring tide which occurs when sun, moon are alined, combining their gravitational forces.
Website of "The Maeslant Barrier" - (Dutch and English language)
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