Hard and Soft Egineering

Question 1

Costs of Sea walls

Answer 1

£2000 per metre

Question 2

Costs of Groynes

Answer 2

£2000 per metre

Question 3

Cost of Rock armour

Answer 3

£300 per metre

Question 4

Cost of Gabions

Answer 4

£100 per metre

Question 5

Pros of Sea walls

Answer 5

Long lasting & creates a promenade for tourists

Question 6

Pro of Groynes

Answer 6

Stops transportation of sediment

Question 7

Pro of Rock armour

Answer 7

Looks more natural

Question 8

Pro of Beach nourishment

Answer 8

It’s natural protection

Question 9

Pro of Sand dune regeneration

Answer 9

Creates new habitats

Question 10

Pro of Managed retreat

Answer 10

Flooding is reduced in other areas

Question 11

Con of Sea walls

Answer 11

Accessing the beach becomes more difficult

Question 12

Con of Groynes

Answer 12

Increases the risk of erosion further down the coast

Question 13

Con of Gabions

Answer 13

Makes the beach look ugly

Question 14

Con of Beach nourishment

Answer 14

Time consuming and sand has to come from soewhere

Question 15

Con of Managed retreat

Answer 15

Some people will lose land, houses or businesses

Question 16

How do Sea walls work?

Answer 16

Concrete wall absorbs wave energy

Question 17

How do Groynes work?

Answer 17

Long wooden fences/piles of rocks stop longshore drift

Question 18

How does Rock armour work?

Answer 18

Large boulders piled up at the foot of cliffs absorb wave energy

Question 19

How do Gabions work?

Answer 19

Rocks/boulders held in wire mesh cages absorb wave energy

Question 20

How does Beach nourishment work?

Answer 20

Adding more sand to beaches in front of cliffs

Question 21

How does Sand dune regeneration work?

Answer 21

Allowing sand dunes to build up around wooden structures

Question 22

How does managed retreat work?

Answer 22

Abandoning existing sea defences and building new ones further inland

Question 23

Define Hard engineering

Answer 23

Building physical structures to stop waves eroding the land

Question 24

Define Soft engineering

Answer 24

Using nature to protect the coast, more environmentally friendly

Question 25

What type of engineering are Sea walls?

Answer 25

Hard engineering

Question 26

What type of engineering are Groynes?

Answer 26

Hard engineering

Question 27

What type of engineering is Rock armour?

Answer 27

Hard engineering

Question 28

What type of engineering are Gabions?

Answer 28

Hard engineering

Question 29

What type of engineering is Beach nourishment?

Answer 29

Soft engineering

Question 30

What type of engineering is Sand dune regeneration?

Answer 30

Soft engineering

Question 31

What type of engineering is Managed retreat?

Answer 31

Soft engineering