Advantages of a Sea Wall
What is a sea wall made out of?
- Concrete-like material
What does a sea wall do to benifit the coast?
- Reflects waves back to sea
- Prevent the coast eroding
- They act as a barrier
Disadvantages of a Sea Wall
Sea walls create backwash
Sea walls are expensive to maintain
Backwash erodes under the wall
Advantages of Rip Rap
Has boulders piled up along the coast...
...The boulders absorb wave energy