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- Strong wire cage with rocks, pebbles and stones inside.
- Protects the coastline by stopping the waves from hitting the cliffs
- Reduces the power of the waves by absorbing the wave energy.
- They are very cheap to make because they are made from natural materials.
- They take up a lot of space.
- Over time the cages will rust.
- They could easily be damaged by storm waves.
- Once the rocks inside have eroded the cages will have to be replaced.
- THIS IS A SHORT TERM MEASURE!!!
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- They are wooden structures that go along the beech at angles to prevent long shore drift.
- The wave energy gets absorbed in the groynes.
- It catches and prevents sediment and sand from which helps to build up a beech.
- They have to be maintained as they dont last very long.
- It stops the rest of the beech further down from getting any more sediment which could course the beech to become smaller (TERMINAL GROYNE SYNDROME)
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- They are sloping structures placed on banks or cliffs to prevent erosion.
- They are designed to absorbed the energy of the incoming wave.
- They catch sediment from long shore drift which helps to build up a beech.
- It stops the rest of the beech further down from getting any more sediment which could course the beech to become smaller (similar to terminal groyne syndrome)
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- They are curved concrete walls which stop the waves from hitting the cliffs.
- They are designed to reflect the wave energy back into the sea.
- It protects the foot of the cliff from erosion.
- They are extremely strong and have a long lifespan.
- It can also help to prevent flooding in the area.
- They are very expensive to build.
- They aren't visually pleasing.
- They dont look natural to the beech as they are mostly made from concrete.
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- They are huge boulders of granite or other hard rocks.
- The rip-rap works by absorbing or deflecting the impact of the wave.
- They are placed at the bottom of cliffs to prevent erosion.
- They are designed to allow water to drain through them.
- Rip-rap does not maintain the natural look of the beech.
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- These are usually made of concrete.
- Their unique shape allows them to absorbe wave energy but allow water to drain through.
- They have a good lifespan because they are so strong and stable.
- Tetrapods don't maintain the naural look of the beech.
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