Coastal Engineering

Question 1

Hard engineering

Answer 1

Building man made structures to manage coast

Question 2

Soft engineering

Answer 2

Building environmentally friendly management solutions

Question 3

Gabions

Answer 3

£350/meter,cages of boulders on cliff wall to buffer erosion and break waves, cheap and effective but ugly

Question 4

Dune regeneration

Answer 4

£2k/100m, plant marram grass and fence areas to develop dune that protects coast, cheap and natural but people don’t want to be fenced out

Question 5

Rock armour

Answer 5

£1k-4K/meter, piles of boulders to break waves, cheap and good for fishing, expensive transport and ugly

Question 6

Marsh creation

Answer 6

£5-10K per acre of arable land, let areas flood to make salt marsh that protects coast, cheap and makes habitats, land lost and farmers have to be payed for land

Question 7

Groynes

Answer 7

£5K/meter, wood or rock structure out to sea to trap sediment and widen beach, big beach so tourist and good for fishing, sand doesn’t get to other coast so only moves problem

Question 8

Sea wall

Answer 8

£10M/km, rock barrier with curve to stop a water, effective but ugly and expensive