She said the backyards of some homes along the beachfront on Lorikeet Dr in south Peregian were also in the low risk category. The report underlines the high cost of replacing existing public infrastructure such as the picnic area, skate park and parking areas should they be damaged as a result of coastal erosion, Ms Kroon said. Community feedback indicates that non-intrusive solutions, such as dune rehabilitation and mitigation, is the preferred course of action. Ms Kroon said rock sea walls were very much a last resort . We have been working for many years to protect and strengthen our dunes and the vegetation that helps them remain intact, she said
However, experts preparing the council s coastal hazard adaptation plan have found the best protection could be levees that would need to be built by 2070 to counter inundation. They put the levee costs at $8.9 million while associated stormwater system protections against saltwater inundation was costed at $10.5 million. Along the coastal strip residents favoured using nature-based solutions solutions such as beach management and dune augmentation to combat increasing erosion impacts. The predicted Noosaville inundation levels for 2070 (top) and 2100 above. An adaptation plan project summary prepared by BMT, an international design engineering risk consultancy, said permanent sea level rise inundation along Noosaville was expected to be high or very high by 2070 through to 2100.