Managing coasts the hard way

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  • Created by: caits
  • Created on: 07-04-14 12:56

Hard engineering is ways of managing coastal erosion by dissipating the wave energy. This is often expensive and uses structures made of concrete, steel, wood and rock.

Sea Walls:

  • Stops waves reaching land and eroding coast by reflecting waves out to sea

Benefits:

  • Reflects waves to stop erosion

Cost and Problems:

  • Prevents easy access to beach
  • Suffers wave scour where destructive waves remove beach
  • Ugly and unnatural
  • £2000 per metre

(http://channel-islands.geographs.org/photos/00/06/000685_a942a21f.jpg)

Groynes:

  • Stick out perpendicular to sea. Made of wood

Benefits:

  • Stops longshore drift, traps sand on beach

Cost and Problems:

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