Hard Engineering Strategies

Question 1

What is rock armour, disadvantages and advantages?

Answer 1

Boulders that are piled along the Coast
A- reduces wave energy, so reduces erosion and flooding and fairly cheap.
D-boulders can be moved by strong waves so have to be replaced.

Question 2

What is a sea wall and it’s advantages and disadvantages

Answer 2

Wall along the coastline, reflects waves back out to sea
A-prevents erosion, acts as a barrier to flooding, promenades people can walk along
D-wall still will get eroded over time from strong waves, expensive (normally £2000 a metre)