VisualLang
groin
a structure of stone, concrete, or timber extending from a shore into the water to prevent erosion and retain sand
A groin is a structure built out from a shoreline into the water to control erosion and sand movement along the beach. Typically made of wood, stone, or concrete, groins are designed to interrupt the flow of water and trap sand, helping to create and maintain a beach. By slowing down currents and waves, groins prevent the loss of sand and protect the coastline from erosion. They are commonly used in coastal engineering to stabilize shorelines and improve recreational areas, making them essential for preserving beaches and coastal habitats.
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