geography coasts- soft engineering

What is beach nourishment

• When sand or shingle is dredged offshore and transported to the coast by barge

• It is dumped on the beach and shaped by bulldozers creating a wider higher beach

How much does beach nourishment cost

Up to £500000 per 100 metres

Advantages of beach nourishment

• blends in with existing beach

• Bigger beach increases tourist potential

Disadvantages of beach nourishment

• needs constant maintenance

• Expensive

What is dune regeneration

When marram grass is planted to stabilise dunes and help them develop, which makes the effective buffers to the sea

Fences keep people of newly planted areas

How much does dune regeneration cost

£200-£2000 per 100 metres

Advantages of dune regeneration

• maintains a natural environment- good for wildlife

• Relatively cheap

Disadvantages of dune regeneration

• time consuming to plant grass and construct fencing

• Can be damaged by storms

What is dune fencing

When fences are constructed along the seaward side of existing dunes to encourage new dune formation

New dunes help to protect existing dunes

How much does dune fencing cost

£400-£2000 per 100 metres

Advantages of dune fencing

• little impact on natural systems

• Controlling access protects other ecosystems

Disadvantages of dune fencing

• can be unsightly

• Needs regular maintenance