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Coastal defence using 'rip-rap'
On
eroding sandy shores the first response of the coastal manager, especially where
infrastructure (e.g. houses and roads) or other human asset is threatened is
to introduce some form of protection. The use of 'hard' material to 'protect'
eroding shores is commonplace. Examples also include boulders (see picture opposite)
in front of eroding sandy shores or at the edge of saltmarshes.
Caption:
Limestone boulders placed on the upper shore in front of an eroding dune,
east coast of Ireland.
| Guidance: Solid structure on beaches can also include gabions,
concrete or other materials including barrels filled with sand as at Troon
on the east coast of Scotland. This type of protection is also used in areas
where soft shores have eroded to undermine existing 'hard' sea walls and
the like such as those at Brancaster,
on the North Norfolk coast. Apart from the fact that these can look out
of place and damage the landscape they are not always effective. |
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