Coastal Realignment
At Abbotts Hall Farm in Essex they breached the existing hard engeneering of a sea wall in October 2002 at various places to allow the land behind it to naturally flood. In doing so, it allows the formation of salt marshes behind them. These act as a natural barrier to the waves as the waves disipate some of their energy on the marshy land, thus reducing the erosianal capacity of the waves. At Abbotts Hall Farm they helped this processes by introducing 26 polder sites along the sea wall. These are wooden 'boxes' in which encourage deposition and reduces erosion. These polders were made from Willow Hurdles, these are low cost, degradable materials to help to contribute to the sustainability of this soft engerneering approach.
At Abbotts Hall Farm they also timed it to perfection, they breached the sea walls at the high tide (spring tide) meaning that the seeds in the waters were able to settle on the land behind the sea wall. This mean that they could collonise much quicker resulting in added protection and added objects where the waves could disipate it's energy.
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