Managing coasts the hard way
- Created by: caits
- Created on: 07-04-14 12:56
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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
Groynes:
- Stick out perpendicular to sea. Made of wood
Benefits:
- Stops longshore drift, traps sand on beach
Cost and Problems:
- …
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