| Erosion Buffers 20 Development should be set back a sufficient distance from the coast to provide an erosion buffer which will allow for at least 100 years of coastal retreat for single buildings or small-scale developments, or 200 years of coastal retreat for large scale developments (ie new townships) unless either of the following applies: (a) the development incorporates appropriate private coastal protection measures to protect the development and public reserve from the anticipated erosion (b) the council is committed to protecting the public reserve and development from the anticipated coastal erosion. 21 Where a coastal reserve exists or is to be provided it should be increased in width by the amount of any required erosion buffer. The width of an erosion buffer should be based on the following: (a) the susceptibility of the coast to erosion (b) local coastal processes (c) the effect of severe storm events (d) the effect of a 0.3 metres sea level rise over the next 50 years on coastal processes and storms (e) the availability of practical measures to protect the development from erosion caused by a further sea level rise of 0.7 metres per 50 years thereafter. Kangaroo_Island_Development_Plan-1.pdf |