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breakwaters
groynes
Structures built to protect beaches
Structures built to protect beaches
shoreline structures
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This question is too vague, and needs more information.
Zakithi Mhlongo Built boats James Watt
Boats that Built Britain ended on 2010-05-19.
Boats that Built Britain was created on 2010-05-04.
Jetties and groynes are both structures that stick out from the coast, but which have different functions. A jetty is usually constructed on piles to allow access to boats moored to it. In this way, a harbour can increase its mooring capacity (which increases revenue). Harbours tend to be in sheltered locations, such as river estuaries. Groynes are built in areas which are prone to erosion. They can be made of wood, but are more often constructed from stones. Their purpose is to act as a barrier to erosion, and also to prevent beach sediment being moved along the shore. They form part of strategies for managing coastal erosion.