Engineering

Question 1

Built along the coast
Protects the cliff base, land and buildings
Can prevent flooding
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Expensive
Reflectiveness makes powerful waves
Can be eroded
Needs maintainance

Answer 1

Sea Walls (HE)

Question 2

Wooden barriers at right angles to the beach
Prevents long-shore drift
Beach builds resistance and attracts tourists
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Unattractive
Expensive

Answer 2

Groynes (HE)

Question 3

Piled on beach
Absorbs wave energy
Builds beach
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Expensive to buy and transport

Answer 3

Rock Armour (HE)

Question 4

Replace moved beach material
Natural defense against erosion and floods
Attracts tourists
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Requires constant maintainance

Answer 4

Beach Management (SE)

Question 5

Naturally flooded/eroded
Develop beach (natural defense, cheap)
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People need compensation

Answer 5

Managed Retreat (SE)

Question 6

Caged rocks absorb wave energy
Effective with severe erosion
Cheaper than sea walls
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Ugly
£350 per metre

Answer 6

Gabions (HE)