BEACH RESPONSE TO COASTAL WORKS GOLD COAST, AUSTRALIA

H.V. Macdonald, D.C. Patterson

Abstract


The paper outlines the results of comprehensive beach surveys carried out over more than 20 years showing the effects of seawalls, groynes and beach nourishment on the beaches of the beach resort city of Gold Coast, Australia. Beach profile changes and, in particular, quantification of the overall extent of accretion and erosion resulting from groynes which interrupt the longshore movement of sand are outlined. The paper confirms the already known principles of behaviour of these coastal works and documents clearly the full detrimental impact that inappropriate structures can have on a natural sand beach system.

Keywords


Gold Coast; beach response; Australia

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