Oxley Beach Coastal Hazard Risk | Ocean Pool Planning Proposal 

Coastal Hazard Zoning and Risk at Oxley Beach

One of the major concerns raised by Protect Oxley Beach Port Macquarie is whether Oxley Beach is an appropriate location for substantial permanent infrastructure given its recognised coastal hazards and vulnerability.

Oxley Beach is a naturally dynamic coastal environment.

Waves, tides, currents, storms, wind and the movement of sand continually shape the shoreline. These processes are essential to the functioning and resilience of coastal ecosystems, but they can also create significant challenges for infrastructure located close to the ocean.

This is particularly relevant when considering the proposed Oxley Beach Ocean Pool and associated infrastructure under Planning Proposal PP-2025-1474.

The question is not simply whether infrastructure can be engineered to withstand today's conditions.

It is also whether a major permanent structure is an appropriate long-term investment in a location subject to ongoing coastal processes, changing hazards and future climate-related risks.

What Is a Coastal Hazard?

A coastal hazard is a natural coastal process that has the potential to affect people, property, infrastructure or the environment.

Under the NSW Coastal Management Framework, coastal hazards can include:

• beach and dune erosion

• long-term shoreline recession

• coastal inundation

• storm surge

• elevated sea levels

• wave overtopping

• coastal cliff or slope instability

• tidal inundation

• sand movement and sediment transport

• impacts associated with extreme weather events.

These processes are not unusual or abnormal.

They are part of how coastlines function.

Beaches naturally gain and lose sand. Waves move sediment along the shoreline. Storms can cause rapid erosion. Large ocean swells can overtop coastal structures. East Coast Lows can generate intense waves, rainfall, wind and elevated water levels.

The challenge arises when permanent infrastructure is placed within environments that are naturally exposed to these processes.

Why Coastal Hazards Matter at Oxley Beach

The Port Macquarie-Hastings coastline is exposed to a range of coastal processes and extreme weather events.

Council is currently preparing a Coastal Management Program (CMP) intended to provide a long-term framework for identifying, assessing and managing coastal risks across the local government area.

As part of this work, Council has undertaken a Coastal Hazard Assessment and Coastal Vulnerability Area Mapping Study (2025) identifying areas exposed to present and future coastal hazards.

Oxley Beach is identified within the coastal hazard and vulnerability mapping.

This does not mean that the beach is unsafe or unsuitable for people to visit.

It means something different.

It recognises that the coastline is a dynamic natural system and that planning decisions need to account for how coastal hazards may affect people, infrastructure and the environment over time.

Oxley Beach Is a Dynamic Coastal Environment

Oxley Beach is shaped by the interaction of:

• waves

• tides

• ocean currents

• wind

• sand movement

• storms

• sea-level conditions

• coastal landforms.

During ordinary conditions, these processes can be gradual and difficult to notice.

During major storms, however, coastal processes can become much more intense.

Large waves can move substantial quantities of sand. Storm surge can raise water levels. Wave overtopping can affect coastal infrastructure. Erosion can damage dunes and expose structures.

The coastline can subsequently recover, but permanent infrastructure may not be able to simply move with the natural system.

That difference between a dynamic coastline and fixed infrastructure is an important planning consideration.

What Has Happened Along the Port Macquarie-Hastings Coast?

The region has experienced significant coastal storms and extreme weather events over many years.

The coastal hazard assessment considers a history that includes:

• severe storm erosion

• East Coast Low events

• tropical cyclones

• storm surge

• dune erosion

• flooding

• flood debris

• damage to coastal infrastructure

• repeated emergency coastal protection works.

Recent severe weather events have damaged coastal assets across the local government area, including seawalls, beaches, boardwalks, reserves, stormwater infrastructure and other public facilities.

These events demonstrate an important reality:

Coastal infrastructure requires ongoing management because the coastline itself is continually changing.

What Could Coastal Hazards Mean for an Ocean Pool?

The proposed Oxley Beach Ocean Pool would involve substantial permanent infrastructure in a coastal environment.

The proposal includes infrastructure such as:

• reinforced concrete structures

• excavation and modification of natural rock platforms

• seawater intake and discharge pipelines extending into the ocean

• pump stations and associated pump pits

• pump housing and electrical infrastructure

• amenities and service buildings

• pathways

• railings

• other supporting public infrastructure.

Unlike a temporary or easily relocatable facility, these structures would be designed to remain in place for decades.

That means they need to be considered over their entire expected lifespan—not simply against current coastal conditions.

The Difference Between Designing for Risk and Eliminating Risk

Modern engineering can make coastal infrastructure stronger and more resilient.

However, engineering does not eliminate coastal hazards.

A concrete structure can be designed to withstand significant wave forces.

It can be repaired.

It can be reinforced.

It can be maintained.

But the natural processes surrounding it continue.

Over time, infrastructure located near an active coastline may be exposed to:

• wave loading

• storm surge

• erosion

• saltwater corrosion

• sand movement

• inundation

• extreme weather

• changing coastal conditions.

This raises an important planning question:

How will the infrastructure perform not only when first constructed, but decades into the future as coastal conditions change?

Climate Change and Future Coastal Risk

Coastal planning increasingly needs to consider future conditions as well as historical events.

Sea levels are expected to continue changing over the long term, while extreme weather events can create significant short-term impacts.

For permanent infrastructure, the relevant timeframe is therefore potentially many decades.

An infrastructure project may be designed for today's conditions, but its owners and the community must ultimately manage the structure under the conditions that exist throughout its operational life.

This means planning should consider:

• future coastal hazards

• sea-level rise

• changing storm conditions

• erosion and shoreline movement

• long-term asset resilience

• maintenance requirements

• potential adaptation measures

• eventual renewal or replacement.

These considerations are particularly important when infrastructure is proposed within a mapped coastal hazard or vulnerability area.

The Long-Term Financial Question

Coastal resilience is not only an engineering issue.

It is also a financial issue.

Permanent public infrastructure requires ongoing:

• inspections

• maintenance

• repairs

• asset management

• safety upgrades

• storm recovery

• renewal

• eventual replacement.

Where infrastructure is exposed to coastal hazards, these costs can increase when severe weather events occur.

The initial construction cost is therefore only one part of the financial equation.

A responsible assessment should also consider the whole-of-life cost of owning and maintaining the asset.

What Can Other Ocean Pools Tell Us?

Other coastal facilities demonstrate that ocean pools and similar infrastructure can require substantial maintenance and storm recovery.

For example, Newcastle Ocean Baths have undergone major restoration works following deterioration and storm-related impacts, while Merewether Ocean Baths have also required repairs following severe weather.

Across NSW, seawalls, promenades, boardwalks and other coastal public assets have experienced storm damage requiring substantial repair or reconstruction.

Every coastal site is different, and these examples cannot automatically predict what would happen at Oxley Beach.

However, they demonstrate a broader principle:

Building infrastructure on the coast creates a long-term asset management responsibility.

Those responsibilities ultimately have to be funded and managed by the asset owner.

For public infrastructure, that can mean significant ongoing costs for councils and the communities they serve.

Who Pays for Coastal Repairs?

When public coastal infrastructure is damaged, repairs and reconstruction generally become part of the asset owner's responsibility.

For Council-owned infrastructure, this can involve public budgets and ratepayer-funded asset management.

That makes long-term coastal resilience an important part of public investment decisions.

The relevant question is not simply:

“Can this structure be built?”

It is also:

“What will it cost to maintain, repair, adapt and eventually replace this structure over its lifetime?”

And:

“What happens if future coastal hazards are greater than anticipated?”

These are reasonable questions whenever substantial public infrastructure is proposed in an exposed coastal environment.

Planning in Coastal Hazard Areas

The NSW Coastal Management Framework provides a basis for recognising coastal hazards and incorporating them into planning and coastal management.

The objective is not necessarily to prevent all development near the coast.

Rather, coastal planning seeks to understand risk, protect coastal values and avoid creating unnecessary or unacceptable future risks wherever possible.

The Port Macquarie-Hastings Coastal Management Program is being developed to provide a long-term framework for managing the region's coastline.

That makes the current planning context particularly relevant to Oxley Beach.

The proposed ocean pool is being considered at a time when Council is undertaking detailed work to understand coastal hazards and future vulnerability.

Why the Coastal Management Program Matters

A Coastal Management Program can help councils understand:

• where coastal hazards occur

• which areas are vulnerable

• what environmental values need protection

• which public assets are at risk

• how risks may change over time

• what management responses may be appropriate

• how coastal communities can become more resilient.

For Protect Oxley Beach, this broader strategic work raises an important planning consideration.

If a site is being assessed for long-term coastal vulnerability, then major permanent infrastructure proposed for that same environment should be considered in the context of that risk information.

Planning decisions should look beyond the immediate benefits of a project and consider how the asset fits into the long-term management of the coastline.

Coastal Hazards and the Proposed Planning Amendment

Planning Proposal PP-2025-1474 seeks to change the planning framework to enable the proposed ocean pool and associated infrastructure at Oxley Beach.

The coastal hazard context is therefore an important part of assessing the proposal.

The issue is not whether coastal hazards exist—coastal hazards are a natural part of the coastline.

The issue is whether the proposed development has been appropriately designed, assessed and costed to manage those hazards throughout its intended lifespan.

This includes considering the potential consequences of:

• erosion

• wave action

• storm surge

• inundation

• sea-level rise

• sand movement

• extreme weather

• long-term deterioration

• future coastal change.

Building for the Future, Not Just Today

One of the strongest arguments for careful coastal planning is that public infrastructure can remain in place for generations.

A decision made today could create obligations for future councils and communities.

If coastal conditions change, future generations may inherit the responsibility for maintaining, modifying, protecting or replacing infrastructure that was approved decades earlier.

That is why long-term resilience needs to be considered before construction—not after problems emerge.

Good coastal planning asks:

What will this place look like in 30, 50 or 100 years?

How will the infrastructure perform under future conditions?

What will it cost to maintain?

What happens if the coastline changes more rapidly than expected?

These questions are particularly important for infrastructure intended to serve the public for decades.

Protecting the Coast While Providing Public Recreation

Protect Oxley Beach supports high-quality public recreation.

The campaign's concern is whether a major permanent facility should be located within a coastal environment identified as subject to natural hazards and ongoing coastal processes.

There may be locations where an ocean pool or similar facility can be provided with lower long-term exposure to coastal hazards.

Identifying the most appropriate location should therefore involve consideration of:

• environmental impacts

• cultural values

• coastal hazards

• climate resilience

• engineering requirements

• whole-of-life costs

• accessibility

• community benefit

• long-term strategic planning.

The goal should be to provide recreation infrastructure that remains safe, financially sustainable and resilient for future generations.

A Long-Term Decision for Oxley Beach

Oxley Beach is a natural coastal environment.

Its waves, tides, sand movement, storms and changing shoreline are part of what makes it a functioning coastal ecosystem.

Those same processes also create challenges for permanent infrastructure.

The Coastal Hazard Assessment and Coastal Vulnerability Area Mapping Study and the developing Port Macquarie-Hastings Coastal Management Program provide important context for understanding those challenges.

For Protect Oxley Beach, this information should form part of any evidence-based assessment of Planning Proposal PP-2025-1474.

The question is not whether people should enjoy Oxley Beach.

They already do.

The question is whether the proposed infrastructure is the right type of development for this particular coastal environment—and whether the community can be confident that its environmental, engineering and financial risks can be responsibly managed for decades to come.

Frequently Asked Questions About Oxley Beach Coastal Hazards

Is Oxley Beach in a coastal hazard area?

• The Port Macquarie-Hastings Council coastal hazard and vulnerability mapping identifies Oxley Beach within an area affected by coastal hazards and ongoing coastal processes.

What coastal hazards affect Oxley Beach?

• Relevant coastal hazards can include erosion, shoreline recession, storm surge, inundation, wave overtopping, sand movement, extreme storm events and other coastal processes.

What is the Port Macquarie-Hastings Coastal Management Program?

• The Coastal Management Program is a long-term strategic framework being developed to identify coastal values, understand hazards and vulnerabilities and guide the future management of the region's coastline.

Why do coastal hazards matter for the proposed Oxley Beach Ocean Pool?

• An ocean pool would be permanent infrastructure located directly within the coastal environment. It could therefore be exposed throughout its lifespan to waves, storms, erosion, inundation, saltwater corrosion and changing coastal conditions.

Does engineering eliminate coastal risk?

• No. Engineering can reduce and manage risk, but it cannot eliminate the natural coastal processes that affect beaches and structures. Long-term maintenance, adaptation and potential repair remain important considerations.

What are the financial implications of coastal infrastructure?

• The initial construction cost is only one component of the financial commitment. Public coastal infrastructure can require ongoing inspection, maintenance, storm repairs, renewal and eventual replacement.

Why is climate resilience important?

• Permanent infrastructure may remain in place for decades. Planning therefore needs to consider future coastal hazards and changing conditions, rather than relying only on historical or present-day conditions.