Cover Letter, DA Form 1, Plans, Owners Consent, Coastal Environment Assessment · OPW21/0049

Noosa Spit Coastal Protection Environmental Assessment                                                      4
Introduction




         • Option 2 – Extension of the existing training wall/groyne at western end of Dog Beach

         • Option 3 – Extension of submerged breakwater and two new groynes

         • Option 4 – Three new groynes at Dog Beach

         • Option 5 – Shore parallel seawall

         • Option 6 – Do nothing (allow Dog Beach to recede without intervention).

         The options were examined based on numerical modelling and a multi-criteria analysis, which looked
         at the effectiveness, whole of life costs, environmental/social values and risk associated with each
         option. The Department of Environment and Science (DES) were involved in the development of
         options and have reviewed the SEMP. Option 1a was preferred, due to its effectiveness in relieving
         erosion pressure and the social benefits for users of Dog Beach and the redirection of boating traffic
         away from the Dog Beach channel.




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