City of Moreton Bay will carry out works along the foreshore opposite 133 to 153 Flinders Parade, Scarborough to enhance cliff stability and prevent erosion.
There are currently two rock groynes at Drury Point and Serge Testa Place. Groynes are structures that extend into the sea. They protect the coast by preventing longshore drift.
These groynes play an important role in trapping sediment and reducing erosion caused by waves at the base of the cliff.
The upgrade will include:
- extending the existing rock groyne at Drury Point by approximately 50 metres
- depositing about 10,000 cubic metres of sand between the groynes for beach nourishment.
The two groynes will contain the sand, preventing the slow scour at the cliff base. This will also help slow erosion and reduce beach maintenance.
Council will track the ongoing rate of scour and may take further action to increase the stability of the upper cliff by:
- removing trees with significant root exposure
- re-profiling the cliff to address any overhanging or unstable soil slabs
- relocating safety fencing.
The works will improve public infrastructure along Flinders Parade. They will also enhance public safety, beach amenity and recreation access along the foreshore.
Council engaged specialist coastal engineering consultants for the design phase of the works.