Is there a problem of costal management at Porlock Bay?

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Aim - Is there a problem of costal management at Porlock Bay?

Many coastlines in MEDC’s and LEDC’s are heavily populated. The coasts provide many people high with income from tourism and leisure activities. Some coastlines also have a high economic and land value. Coastlines are sometimes prone to flooding or erosion from costal processes. Coastlines are fragile natural environments, which are easily damaged by the whether and people. If they are destroyed, the ecosystems can take a long time to recover from the devastation.

Flooding is s problem at Porlock Bay; this is shown in the salt marsh that has formed from flooding in between Gore Point and Hulstone Point. This area is shown where the arrows are pointing

How would costal protection systems be suited for Porlock Bay?

Groynes

The groynes can be made of wood, steel or rock. The groynes are supposed to protect the beach by creating a barrier. This will stop the beach material being moved by long shore drift. There is a groyne barrier at Gore Point, which is used to protect the boats passage out of Gore Point. The advantage of this costal protection is that the groynes will keep the material in the bay. The disadvantage of using groynes is that it is high maintenance and the groynes are very unattractive. This type of protection costs roughly £340,000 per kilometre.  The groyne at Gore Point is shown below -

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Sea Walls

The sea wall is a wall that is built at the base of cliffs; the sea wall may be used to protect a local settlement area. The waves are reflected back off the wall. Over 20-30 years the sea wall will be eroded. The sea wall can be in 2 shapes, it could be a curved sea wall or a vertical sea wall. The advantage of using a sea wall is that it is very effective and the sea wall can be used as recreational facility. The disadvantage is that it is very expensive ...

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