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



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

Other articles related to "defence, coastal defence, coastal, coastal defences, defences":

Plan W - Context - Political Context and Early Planning
... context, they embarked on the policy of planning, together with the Irish authorities, for the defence of the island ... That the matters of “common concern” shall include Defence, Peace and War, Political Treaties, and all matters now treated as of common concern amongst ... That for five years, pending the establishment of Irish coastal defence forces, or for such other period as the Governments of the two countries may later agree upon, facilities for ...
Managed Retreat - Coastal Defence
... Realignment is generally to improve coastal stability, essentially replacing artificial ‘hard’ coastal defences with natural ‘soft’ coastal landforms (Pethick ... of land further inland rather than that near the coast by relying on natural defences to absorb or dampen the force of waves ...
Sverige Class Battleship - "Sverige-class", Tactical Doctrine and Effectiveness
... The Sverige-class ships differed in several ways from the classical coastal defence ship at first by heavier armament as well as better speed and armor, but still small enough to operate and hide in the archipelagos ... Unlike other coastal defence ships the "Sverige-class" formed the core of a traditional open sea battle group (Kustflottan), operating with cruisers, destroyers ... speculation appeared in Warship Magazine 1992 Edition, in the article 'The Sverige Class Coastal Defence Ships, by Daniel G Harris.' This could partly said to be confirmed in the post war publication of German ...
Lynemouth Power Station - Operations - Coastal Defence
... This led to a sea defence system being constructed to protect the building ... Tipped waste from the colliery had been used as a coastal defence measure, but as the colliery had closed, waste was no longer being tipped ... The colliery closed again in 2005, leading to problems with coastal defence again, threatening the station's coal stocking area ...
Estonian Navy - History - Coastal Batteries
... Since the end of the 19th century the Russian Empire began to build coastal fortresses and naval strongholds to Estonia which was annexed to empire after the Great Northern War in 1721 ... A systematic coastal defence network and naval gun installations were ordered and the construction works began at the end of the 1890s ... Estonia Navy began to rebuild and develop the coastal defence network ...

Famous quotes containing the word defence:

    Behold now this vast city; a city of refuge, the mansion house of liberty, encompassed and surrounded with his protection; the shop of war hath not there more anvils and hammers waking, to fashion out the plates and instruments of armed justice in defence of beleaguered truth, than there be pens and hands there, sitting by their studious lamps, musing, searching, revolving new notions.
    John Milton (1608–1674)