Further investigations & recommendations

  • Regular condition assessments of the seawall and revetments should be undertaken by qualified engineers, yearly and after significant storm events.
  • The rates of loss of material at the toe of the seawalls should be monitored where necessary.
  • Monitoring of the beaches in this location (e.g. profile surveys, photographs) is recommended to more closely document the rates of change along the beaches. This will provide better background information to inform more detailed future assessments. Frequency of profiling will depend on available funds and resources, suggest teaming with DELWP to determine how best to approach the monitoring and the methods. Generally, the following is recommended:
  • profiling at the end of each season (or at least summer and winter), as well as after significant storm events
  • 10 - 15 profiles at key locations along Lonsdale Bight, and/or where there is a significant change in the beach morphology or where shore protection structures change
  • 5 - 10 profiles at key locations along Queenscliff Beach and Sand Island, and/or where there is a significant change in the beach morphology
  • photographs of the shoreline taken at the same times as profiles are surveyed, preferably at a fixed and known sites facing the same direction
  • Management options and adaptation response planning to address the inundation vulnerability should be undertaken in the near future.
  • Investigate habitat resilience and adaptability to climate change and sea-level rise for Swan Bay.
  • More detailed investigation and/or modelling of the combination of inundation paths at St. Leonards.

 

Implications for Coastal Management

Further studies