The coastline around Inverloch, Venus Bay and Anderson Inlet is a beautiful and dynamic part of the landscape. Natural processes such as winds, waves, tides, currents and catchment flows move sand and sediments, reshaping the coastline. These processes sometimes impact on places we value, and the way we use the coast.

The coastline at and around Inverloch has experienced significant erosion in recent years. Public assets, values and infrastructure are now at risk of damage and loss.

To proactively plan for managing future changes to the coastline, we’re delivering the Cape to Cape Resilience Project. This project combines the latest science, technical assessments and community aspirations to develop a long-term plan to manage important places, assets and other values in the future. The study area for the Cape to Cape Resilience Project is between Cape Paterson and Cape Liptrap.

This project is being undertaken in two key stages, you can find out more about each Stage below.

Map of the Cape to Cape Resilience Project study area

Project updates and factsheets

Read the latest project updates and factsheets here.

Project updates

Factsheets

The Inverloch Regional and Strategic Partnership

Many agencies are responsible for managing coastal and marine areas. A Regional and Strategic Partnership (RaSP) brings these agencies together to respond to key issues. The Inverloch RaSP is the first RaSP established under the Marine and Coastal Act 2018, and has ten partners – Traditional Owners, the Bunurong Land Council Aboriginal Corporation, and nine agencies with responsibility for managing coastal land, assets and infrastructure in the Inverloch region.

The Inverloch RaSP will work with the community to address ongoing and future coastal erosion and inundation impacts. This includes delivering the Cape to Cape Resilience Project.

Stage 1

Over the past two years, we have delivered Stage 1 of the Cape to Cape Resilience Project. This extensive scope of work has produced various technical, strategic and engagement assessments. The outcomes of this work allow us to better understand the region’s coastal hazards and possible implications for our local communities, now and into the future. This work has included:

  • New research through a Coastal Hazard Assessment (CHA)
  • Coastal hazard modelling, maps and spatial data layers
  • Extensive community engagement and Community and Cultural Values studies
  • A coastal risk and vulnerability assessment
  • Economic base case for coastal hazards

More information about these outcomes can be found in the drop downs below.

The Inverloch Region Coastal Hazard Assessment (CHA) is a core technical investigation that has been undertaken as part of the Cape to Cape Resilience Project. Informed by extensive analyses of the region’s geological formation, local conditions, and historic and recent changes along the Cape to Cape coastline, the project team developed various computer models to simulate conditions of the local coastal, estuarine and catchment areas.

These models assessed:

  • Storm-tide
  • Waves
  • Sediment transport
  • Shoreline response (erosion / accretion).

Looking at both present day conditions and predicted future changes, such as rising sea levels and changing wind and wave climates, the models have been used to examine how the coastline might change and respond.

The outcomes of this assessment help us to better understand some of the complex processes impacting our coastline and surrounding areas. We can now identify areas and assets that may be vulnerable to coastal hazards and changing climate conditions in the future.  This knowledge helps to inform the development of possible management or adaptation responses.

For more information about the CHA, check out these two presentations:

Hazard Maps

Estimated as “coastal hazard extents”, mapping the CHA modelling results indicates areas along the Cape to Cape coastlines that may be exposed to inundation (flooding), erosion (sand loss) or sea level rise.

Many maps have been produced by the project team, showing combinations of the different hazard types, storm events and timeframes. This helps to highlight how hazards and exposure varies for each hazard type, storm events, climate conditions and over different timeframes. This spatial understanding informs our understanding of exposure, vulnerability and risk.

You can view the hazard maps below. Be sure to read the Hazard Map Information Sheet for more information about the maps and how they help us to plan for the future.

  • Hazard Map Information Sheet (Word)/(PDF)
  • Cape to Cape Region Erosion Hazard Map_1% AEP (JPG)/(PDF)
  • Cape to Cape Region Storm Tide Inundation Hazard Map_1% AEP (JPG)/(PDF)
  • Cape to Cape Region Storm Tide Permanent Inundation Hazard Map (JPG)/(PDF)
  • Inverloch Erosion Hazard Map_1% AEP (JPG)/(PDF)
  • Inverloch Erosion Hazard Map - Bunurong Road and Surf Parade_10% AEP (JPG)/(PDF)
  • Inverloch Storm Tide Inundation Hazard Map_1% AEP (JPG)/(PDF)
  • Inverloch Storm Tide Inundation Hazard Map AEP Storm (JPG)/(PDF)
  • Inverloch Permanent Inundation Map (JPG)/(PDF)
  • Venus Bay & Tarwin Lower Storm Tide Inundation Hazard Map_1% AEP (JPG)/(PDF)
  • Venus Bay & Tarwin Lower Permanent Inundation Hazard Map (JPG)/(PDF)

The Community Values Study is a key initial study for the Cape to Cape Resilience Project. It provides a basis for better understanding the community’s values, priorities and perspectives in the context of adaptation and resilience planning for the coastal areas of the Cape to Cape region

Data that informed the Community Values Study came from an extensive engagement process between July and September 2021.

You can find the full details of this engagement in our Community Values Study, or a snapshot of the findings below:

Values and Experiences Survey (Snapshot) October 2021 (Word)/(PDF)

Community Values Study December 2021 (Word)/(PDF)

Community Engagement: Adaptation Survey Outcomes (Snapshot) April 2022 (Word)/(PDF)

Summary Reports

The full suite of Stage 1 Reports will be released soon.

We have created summaries of the key reports from the Coastal Hazard Assessment to help communicate the key work and findings of the project.

CHA Coastal Processes Report Summary

CHA Inundation Report Summary

Risk and Vulnerability Report Summary

CHA Adaptation Actions Technical Assessment Report Summary

Stage 2

We have now started Stage 2, the development of the Cape to Cape Resilience Plan. A resilience plan will allow us to strategically manage coastal hazards, increasing our region’s resilience into the future. It will include:

  • managing recent changes seen along Inverloch’s coastline
  • long-term coastal hazard resilience and adaptation planning to enable the Cape to Cape community to respond and adapt to climate change impacts on the coast.

Adaptation can be defined as ‘the process of adjustment to actual or expected climate and its effects’.

There are a range of actions that can be considered for mitigating coastal hazard risk and adapting to climate change. These may include actions associated with planning, capacity building, engineering, or other themes.

In considering options to mitigate coastal hazard risk, the Victorian Marine and Coastal Policy (2020) provides direction to respect natural coastal processes, apply an adaptation pathways approach, and to consider options in the following order of:

  • non-intervention
  • avoid
  • nature-based methods
  • accommodate
  • retreat
  • protect.

More information about the approach to adaptation and these options can be found in Factsheet #6 Strategic Approach to Adaptation here and Factsheet #7 Adaptation Actions here.

Adaptation actions are not mutually exclusive, and often a suite of measures is required to effectively manage coastal hazard risk.

Stage 2 will determine which adaptation options and actions are the most suitable for managing hazard risk for the region.

Listening to the community

Speaking with our community is key to the Cape to Cape Resilience Project. Our stakeholder and community engagement is happening throughout the project and will be tailored to align with and inform key elements of the technical work.

As our project team continue with our adaptation and resilience planning, we will also continue to talk to our key stakeholders and our community.

Engagement to date

Our work to date has already explored a range of topics relating to coastal hazards and their management with our community:

  • community values, usage and enjoyment of the Cape to Cape region’s coastal areas
  • perceived threats to these values and uses
  • what the community hopes to see in the future
  • ideas, perspectives and preferences that may enable us to adapt and increase our resilience

How to participate

Hearing ideas and perspectives from the Cape to Cape communities remains an important part of this project and will help to shape the adaptation pathways and actions for the region. Extensive and targeted community and stakeholder engagement is happening throughout Stage 2, to help inform our Resilience Plan. We’ll be popping up around the region over summer to talk to residents and holiday makers. The range of engagement activities will also include drop-in sessions and stakeholder roundtables.

Email capetocape.project@delwp.vic.gov.au to receive regular progress updates and notifications of public meetings.

Table showing how engagement informs planning

Project Frequently Asked Questions

The Cape to Cape Resilience Project is a coastal hazard adaptation project, overseen by the Inverloch RaSP. The project includes:

  • New research through a Coastal Hazard Assessment
  • Extensive community engagement
  • A coastal risk and vulnerability assessment, and
  • Coastal resilience planning.

In response to erosion currently being experienced along the Inverloch foreshore, coastal hazard adaptation options will initially focus on the 5 km of coastline from Flat Rocks to Screw Creek.

Working with the RaSP agencies, the project team will consider a range of adaptation options for this stretch of coastline. Development of possible options will be informed by the Inverloch Coastal Hazard Assessment, risk assessments, and community values and adaptation preferences.

Using tailored objectives and criteria, we will shortlist options to examine further. Criteria will include community values, environmental impacts, costs, performance and effectiveness, and amenity (including impacts on access and aesthetics). Importantly, the order of consideration for options must also align with the directions for managing coastal hazard risk as outlined in the Victorian Marine and Coastal Policy (2020).

A detailed analysis for the shortlisted options will draw on modelling, economics, and strategic planning to determine actions for Flat Rocks to Screw Creek, and also inform adaptation planning for the broader Cape to Cape coastline and communities.

Computer models will be used to test the performance and suitability of different adaptation options (interventions) under different scenarios. Up to five adaptation interventions will be modelled to determine how effective they are in mitigating hazard risk and to consider potential impacts on surrounding areas.

We will assess options for both present-day and future conditions to ensure they are appropriate in now, and how long they will be effective for in the future. Short, medium and long term actions can then be included in the adaptation planning process.

While we plan, develop and design adaptation solutions, the Inverloch Coastal Protection Interagency Working Group continue to actively monitor the coastline to determine if further short-term, rapid response / management measures are required.

The project provides many different and exciting opportunities for the community and stakeholders to be involved.

Using range of in-person and online activities and events, we will be looking to share key information from the project. We are also keen to gather your insights into what you value about the coast from Cape Paterson to Cape Liptrap, and your perspectives on adaptation and resilience.

We will be providing regular updates and factsheets to keep you informed about the project.

The study area for the Cape to Cape Resilience Project is between Cape Paterson and Cape Liptrap on the Bass Coast, Gippsland.

The area of interest includes:

  • The open coast from Cape Paterson along the coastal cliffs adjacent towards Inverloch
  • The open foreshore and surf beach at Inverloch
  • The dynamic estuaries and tidal mudflats of Anderson Inlet
  • The open coast and dunes of Venus Bay south to Cape Liptrap
  • Inland from the coastline, allowing for assessment of estuary and groundwater impacts.

There will be a range of project outputs, including:

  • The Inverloch Region Coastal Hazard Assessment (CHA)
  • A Community Values Study
  • Coastal risk and vulnerability assessment
  • The Cape to Cape Coastal Resilience Plan

The expected outcomes of the Cape to Cape Resilience Project include:

  • Identification of coastal hazards from Cape Paterson to Cape Liptrap and the extent of potential impact
  • Inundation, erosion and groundwater data and hazard mapping for the region
  • Stakeholders have up-to-date information to inform planning decisions and management of assets
  • Community values influence the direction of the research, management strategies and resilience planning.
  • Community understanding of local coastal hazards and management strategies

Natural coastal processes like wind, waves, tides and currents work to shift sediment and shape the coastline. When these processes negatively impact on use of the coast, they become coastal hazards. These impacts could be environmental, social, cultural or economic impacts. Coastal hazards include coastal erosion and inundation.

The Coastal Hazard Assessment will consider:

  • Wind and wave conditions
  • Sediment transport
  • Coastal erosion,
  • Permanent and temporary inundation (coastal and flooding), and
  • Changes in groundwater
  • Multiple sea level rise scenarios for storm and rainfall impacts will be modelled. Proposed scenarios are 0.2 m, 0.5 m, 0.8 m, 1.1 m and 1.4 m of sea level rise.

This new research will:

  • Assess present day conditions,
  • Calibrate models against historic events, and
  • Predict conditions for the future.

We’ll also look at different magnitudes of coastal storm events and potential changes in wind and wave direction.

Water Technology will undertake the Coastal Hazard Assessment and technical investigations.

The South Gippsland Conservation Society has been working on the Inverloch Coastal Resilience Project (ICRP) since 2018. The project aims to analyse the extent of coastline recession at Inverloch, the factors contributing to the changes, the ecological, geomorphological, Aboriginal cultural heritage and economic values. In August 2019 the first significant output of this project was produced:  the Inverloch Coastal Resilience Project Report (August 2019). The SGCS is continuing to work in collaboration with the Victorian Coastal Monitoring Program, DELWP, Bass Coast Shire Council and Parks Victoria for its project. More information about the ICRP and project reports can be found here: www.sgcs.org.au.

The Inverloch coast is also the subject of various research activities through the Victorian Coastal Monitoring Program (VCMP).

The Cape to Cape Resilience Project will build on this work. One of the first tasks of the project is to review this previous work and understand where there are knowledge gaps.

The Inverloch Coastal Protection Interagency Working Group actively monitor the coastline and the condition of recent coastal protection works. If further short-term protection is necessary, the working group will decide together and seek funding for implementation.

Resilience is the capacity of systems to cope with or ‘bounce back’ following a hazardous event or disturbance. This includes social, economic and environmental systems. Resilience means responding or reorganising to maintain essential functions, identities and structures, while maintaining the capacity to adapt and transform.

Adaptation is defined by the Intergovernmental Panel on Climate Change (IPCC) as ‘the process of adjustment to actual or expected climate and its effects’. The definition differentiates between human and natural systems. In human systems, adaptation seeks to moderate or avoid harm or exploit beneficial opportunities. In some natural systems, human intervention may facilitate adjustment.

Regional and Strategic Partnerships (RaSP) are a new tool under the Marine and Coastal Act 2018. RaSPs bring stakeholders together on regionally significant issues. The Inverloch RaSP is the first created under the new Act, gazetted on 6 August 2020.

The RaSP brings together Traditional Owners and nine agencies. They each have a role in managing coastal and foreshore values, assets and infrastructure around Inverloch. They commit to working together to respond to coastal hazards facing the Inverloch community now and into the future.

Find out more about the Marine and Coastal Act 2018.

The Inverloch RaSP has representatives from the following agencies and entities:

  • Bunurong Land Council Aboriginal Corporation (BLCAC)
  • Bass Coast Shire Council (BCSC)
  • Department of Environment, Land, Water and Planning (DELWP) (lead agency)
  • Department of Transport (DOT)
  • Gippsland Ports
  • Heritage Victoria
  • Parks Victoria (PV)
  • South Gippsland Shire Council (SGSC)
  • South Gippsland Water (SGW); and
  • West Gippsland Catchment Management Authority (WGCMA).

The Stakeholder Reference Group (SRG) is an independent group that supported Stage 1 of the Cape to Cape Resilience Project. The group included invited stakeholders and community members selected through expressions of interest.

The Inverloch Coastal Protection Interagency Working Group is separate to the RaSP. The Interagency Working Group consists of representatives from:

  • DELWP
  • Bass Coast Shire Council
  • Parks Victoria
  • Regional Roads Victoria
  • West Gippsland Catchment Management Authority

The group focuses on addressing current erosion at Inverloch and developing a short-term erosion control plan for key areas around Inverloch. The RaSP will focus on longer-term adaptation over the wider Cape Paterson to Cape Liptrap coastal area.

Wreck Creek is a small intermittently closing and opening coastal lagoon located on the western edge of Inverloch. The lagoon is separated from the ocean by a sandy beach berm that forms and breaks down depending on the redistribution of sand and sediments by waves, tides, flood flows and winds. For questions related to the management of Wreck Creek, please read the frequently asked questions available in Word and PDF.

Page last updated: 14/12/22