The Dun Briste sea stack is 50m high and was formed by wind and wave erosion
350 million years ago.
The invented breakwaters will be used in the protection of coastal areas from wave erosion
and oil facilities from relevant direct effects, and in the facilitation of marine construction works, according to the release.
It has been well recognized that sea cliffs are placed in severe weathering environments; especially the cliff material in the inter- to supra-tidal zone is always exposed to the severest situation, which produces the most favorable condition for wave erosion
The wave runup analysis further shows some indications that some sections of the coastline are more exposed to wave erosion
than others .
The full scope of works includes the design and construction of a permanent beach and any associated structure to prevent wave erosion
Dunes have increased in size, wave erosion
substantially reduced & trapped dying vegetation & debris, forming a fertile environment.
Deposition of the eroded sediment occured in deeper areas located further north to seawards, such as in the area below the base level of wave erosion
The reason(s) for these changes is uncertain--two possibilities are that a progressively-widening wave-cut platform is dissipating barge-generated wave energy or that the exposure of dense root mats along some receding shorelines is increasing resistance to wave erosion
The 200m breakwater will be built 300m out to sea in Newbiggin Bay to guard the beach and seafront from wave erosion
After driving sheet-metal piling along the shoreline to address wave erosion
problems, Milam and his crew poured four-foot wide reinforced concrete footings to support the weight of the wall nearest the lake.
The bund will provide protection from wave erosion
and access for future maintenance.
The project also will protect the harbor from wind and wave erosion
, and reclaim land from the sea for building purposes.