Coastal Defence

Coastal defence (Commonwealth) or Coastal defense (US) has two distinct meanings:

  • For the protection of the coast from the action of wind, wave and tide, see Coastal management
    • Manmade defensive features, e.g. groynes, riprap, sea walls
  • For the protection of the coast against military or naval attack, see Coastal defence and fortification.

Coastal defense is to protect the coast and its surroundings from long shore drift, erosion and flooding.

Advantages and diAdvantages of having sea walls:

Stops the Sea flooding land mainly

Protects the Coast line Very effective

Disadvantages:

Expensive

Takes time to build Look ugly

What are the advantages of rock armour?

absorbs energy from storm waves, prevents erosion. disadvantages can be moved by the sea

it protects the cliff from being eroded quickly and also deflects some of the energy of the waves

Famous quotes containing the word defence:

    “Education must have two foundations—morality as a support for virtue, prudence as a defence for self against the vices of others. By letting the balance incline to the side of morality, you only make dupes or martyrs; by letting it incline to the other, you make calculating egoists.”
    —Sébastien-Roch Nicolas De Chamfort (1741–1794)