What are the advantages and disadvantages of groynes?
Answer (2)
Advantages: Inexpensive, effective at stopping long shore drift, allows build up of new beach
Disadvantages: have to be maintained, eyesore, cause erosion further down beach
Groynes are coastal structures that help stop beach erosion by trapping sand, making them inexpensive and effective at widening beaches. However, they require maintenance, can be visually unappealing, and may cause increased erosion downstream. Therefore, while groynes serve important purposes, their installation and use must be considered cautiously due to their potential unintended consequences.
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