10th February 2016

Coastal Defence

Civils (UK) Ltd and Coastal Defence:
Great Britain as we know is an island and our coastlines are constantly being eroded by the elements . Therefore the coastline has to be managed to minimise and prevent this erosion . The management of our coastline requires the use of coastal sea defences to reduce the impact of the erosion on our shore line .
The type of defences used to prevent coastal erosion fall into two categories, Hard and Soft Engineering :

Hard Engineering
Hard engineering can be more costly at the offset and can be more intrusive .
Different types of hard engineering we use consist of the construction of groynes ,either with wood ,rock or concrete, revetment, break waters and sea walls. These all act as a barrier to the incoming sea .
An example of a timber revetment contract carried out for a private householder is shown, the before and after construction .
A contract for a local authority showing timber revetment carried out at Lepe, country park .

Soft Engineering
Soft engineering is a more sustainable and potentially cheaper option to coastal defence, working with natural processes in order to protect the coastline.
A beach in itself is a coastal defence as it reduces wave impact and helps to prevent inland flooding .
In order for this to work though, the beach must be managed to ensure it is wide and high enough to prevent the sea breaking through. This can often be managed by beach “replenishment” , topping up the shingle by importing or moving the beach material from other areas .
Civils (UK) Ltd have carried out many contracts , beach grading and maintenance with the use of heavy plant , to re-profile the beach allowing it to withstand the force of the tidal reaches .

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