These are all strategies to reduce the impact of coastal erosion:
Groynes:
Wood or concrete barriers built at right angles to the beach to stop longshore drift. £150,000 each (every 200 metres) Advantages:
Disadvantages
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Rock Armour:
Piles of large rock boulders dumped at the foot of the cliff. The rocks force the waves to break absorbing the energy and protecting the cliffs. £200,000 per 100 metres Advantages:
Disadvantages:
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Gabions:
Wire cages filled with rocks that can be built up to support a cliff or provide a buffer against the sea. Up to £50,000 per 100 metres Advantages:
Disadvantages:
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