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mocha_nate | 1 year ago

hard structures increase erosion around it. maybe its something to do with that.

discuss

order

kitd|1 year ago

That depends on design and implementation.

Elmer Sands on the UK south coast, was badly affected by erosion. Authorities built a series of elongated rock islands parallel with the shore (visible here [1]). These a) protect the shore from wave damage, and b) encourage the build up of sand behind them, ie between them and the shore. Yes, there is still erosion, but you can better control where it happens and who it affects.

[1] - https://www.google.co.uk/maps/@50.7920857,-0.6012103,1309m/d...