Sand Fence to control wind erosion at dunes Foz do Arelho Portugal

Description

Sand Fence to control wind erosion at dunes Foz do Arelho Portugal

Samenvatting (Dutch description)

DUNE STABILIZATION Dunes are the most natural line of defense against coastal erosion. That is why many communities prohibit trespassing on dunes and have laws that prohibit deconstructing beach dunes.

Although naturally occurring, dunes can be strengthened with careful management. Install Sand Fence to control wind erosion and fortify the natural soft structure. Stabilize dunes by planting native species that would naturally exist in the coastal habitat.

Advantages Sand Fence is a thin wood slat fence connected by wire. It is not as intrusive as a seawall or bulkhead and is much easier to install. Sand Fence works with wind and waves rather than against them. Wind carries sand and deposits it at the base of the fence. Sand can still blow through the slats but the fence decreases the wind’s strength. As a result, the dune grows in size. When large enough, dunes can protect property from waves and storm surge.

Vegetation is the most natural form of erosion control so dune plantings further strengthen a fortified dune.

Disadvantages Even a reinforced dune can be destroyed when storm surge is strong enough. Additionally, years of wind can bury sand fence which means you might need to install a new line of fence.

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About the author

Floris Boogaard

• Submitted 2072 projects
• Expert at Water
• Netherlands

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