1) Hard Defences
Static shoreline structures such as those constructed from timber, steel, concrete, asphalt and rubble.These involve linear structures such as sea walls, revetments and breastwork and control structures of artificial headlands, offshore breastwork and groynes.
(2) Soft Defences
Mobile/ responsive defence measures which seek to work with nature rather than control it. Such structures may consist of sand or shingle beaches and dunes or banks) which may be natural or constructed, and may include control structures. These can include soft solutions of beach nourishment, cliff/dune stabilisation, bypassing and managed retreat.
TYRE STRUCTURES
- Scrap tyre constructions - a cheap, enviromentally friendly way of protecting the coastline. 100,000 scrap tyres available each year in Britain alone.
- The flexibility they offer seems tailor made in the reef's construction and environment. The fact that they are in abundance and practically free, becomes a big plus for future sea and coastal defence work.
- Scrap tyre constructions placed on the seabed offer habitat to sea life such as fish and molluscs.
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