Coastal erosion strategies assessed

MANAGEMENT options for coastal erosion around the Bellarine are being presented for feedback as state authorities grapple with both short and long term solutions to the hazards and risks from shifting shorelines.

Climate modelling shows that much of the peninsula is highly susceptible to increased storm surges, dune erosion and asset damage and to combat this the Department of Environment, Land, Water and Planning (DELWP) and Borough of Queenscliffe (BOQ) are developing a Coastal Adaptation Plan for the area.

DELWP recently held a ‘listening post’ for participants to comment on issues around the Hodgson Street carpark in Ocean Grove, where 10 coastal adaptation options were presented.

In a summary of the stakeholder feedback, the department received mixed reviews about the 10 options which included sand nourishment, dune management, retreat of the shared coastal trail from Bluff edge, temporary rock bag protections and repairs to existing coastal infrastructure like seawalls.

Proposals for temporary rock bag protections did not have any positive support from respondents according to DELWP, “citing amenity values would be lost and the potential reduction in public safety”.

Upgrades to existing seawalls received consensus among recipients, as it would “be effective, provide long-term protection, however the natural environment is likely to be negatively impacted in the process by causing problems elsewhere through end scouring processes”.

Respondents acknowledged that a ‘retreat’ option for the Hodgson Street carpark may be required if coastal erosion persists, although DELWP noted that most participants “did not support this idea identifying a significant risk of removing native vegetation that wildlife depends on for food and shelter.”

The strategy receiving the most positive support was dune and vegetation management.

Considered a proven method for erosion control in the long-term, as well as providing habitat for native wildlife, it was “identified that this option would only be successful if increased signage and compliance was implemented to ensure vegetation could become established”.

A separate inquiry into management of Point Lonsdale’s Dog Beach is now open for feedback on DELWP’s Engage page, the thin piece of land known as the ‘Narrows’ which links Queenscliff with the Bellarine Peninsula similarly impacted by erosion.

For more information visit engage.vic.gov.au/dog-beach-coastal-adaptation-plan-point-lonsdale