📮 Old Erowal Bay postcode: 2540

Flood Risk in Old Erowal Bay, NSW: 2026 Assessment

Old Erowal Bay, New South Wales· Shoalhaven· 2540
Old Erowal Bay faces a moderate risk of flooding due to its proximity to waterways and low-lying areas. Climate change is expected to increase rainfall intensity, potentially worsening flood events.Updated 25 May 2026

Is Old Erowal Bay Safe from Climate Risk?

Enter your address below for an instant climate risk assessment for Old Erowal Bay, New South Wales, covering flood, bushfire, sea level rise and more.

Free instant previewCSIRO-powered data

What A$49 could save you from

$7.2B
2022 insured disaster losses*
$300B+
climate risk to property by 2050*
30-120%
insurance premium increases in high-risk areas*

*Industry sources: ICA, APRA, RBA

Full report from A$49 · Australian addresses only · 8 hazard scores · Insurance trajectory · 2030 & 2050 projections

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Flood Risk Score

Not assessed

Old Erowal Bay faces a moderate risk of flooding due to its proximity to waterways and low-lying areas. Climate change is expected to increase rainfall intensity, potentially worsening flood events.

Key Facts

Flood Risk
Old Erowal Bay faces a moderate risk of flooding due to its proximity to waterways and low-lying areas. Climate change is expected to increase rainfall intensity, potentially worsening flood events.
Trend
increasing
Suburb
Old Erowal Bay, NSW
Overall Risk
High
Postcode
2540

Flood Risk Analysis

Old Erowal Bay, located in New South Wales, has a location-specific flood risk profile based on available data including proximity to waterways, elevation, and historical flood events. The Bureau of Meteorology (BOM) maintains river height and flood warning data for catchments across New South Wales.

Some areas are prone to flash flooding during heavy rainfall events.

Old Erowal Bay faces a moderate risk of flooding due to its proximity to waterways and low-lying areas. Climate change is expected to increase rainfall intensity, potentially worsening flood events.

For a comprehensive property-specific flood assessment including address-level elevation data, flood overlay mapping, and insurance cost estimates, use the ClimateNest full analysis tool. General suburb data cannot replace a site-specific evaluation.

ClimateNest assesses hazards at the address rather than the suburb, because exposure varies street by street within Old Erowal Bay. An address-level check is what tells you about a specific property before you buy, sell or insure it.

Local Hazard Evidence

Nearest WaterwayErowal Bay
Elevation Range0-20m
Flood Zone ClassificationCoastal floodplain

Historical Events

2020
Moderate

Heavy rainfall caused flooding in low-lying areas of Old Erowal Bay.

Adaptation & Mitigation Actions

Improve coastal defenses

Near-term

Invest in seawalls and other coastal defenses to protect against sea level rise and storm surges.

Est. cost: High

Strengthen bushfire preparedness

Immediate

Implement stricter building codes in bushfire-prone areas and provide residents with resources to prepare for bushfires.

Est. cost: Medium

Develop a heatwave response plan

Near-term

Create a plan to help residents cope with extreme heat, including cooling centers and public awareness campaigns.

Est. cost: Low

Upgrade stormwater drainage

Long-term

Improve stormwater drainage systems to reduce the risk of flooding during heavy rainfall events.

Est. cost: High

Community education programs

Near-term

Educate the community about climate change risks and adaptation measures.

Est. cost: Low

Council & Emergency Services

Shoalhaven City Council
Emergency Services

Data last updated: 25 May 2026

Explore Old Erowal Bay Risk Reports

Frequently Asked Questions

Is Old Erowal Bay at risk of flooding?

Based on available data, Old Erowal Bay has a location-specific flood risk profile. Flood risk varies by address — check your specific property for precise flood zone mapping and elevation data with ClimateNest.

What flood insurance costs can I expect in Old Erowal Bay?

Insurance costs for flood cover in Old Erowal Bay depend on the property's flood zone classification, elevation, and proximity to waterways. ClimateNest provides address-level insurance cost estimates based on your property's specific hazard exposure.

Does flood risk affect property values in Old Erowal Bay?

Yes, flood risk can affect property values in Old Erowal Bay. Properties in mapped flood zones may experience lower buyer demand, reduced valuations, and higher insurance costs. Lenders increasingly assess flood exposure as part of mortgage risk evaluation.

How does elevation affect flood risk in Old Erowal Bay?

Elevation is a critical factor in flood risk. Properties at higher elevations within Old Erowal Bay typically have lower flood exposure than those near waterways or in low-lying areas. Address-level elevation data combined with BOM flood mapping provides the most accurate picture.

Is Old Erowal Bay Safe from Climate Risk?

Enter your address below for an instant climate risk assessment for Old Erowal Bay, New South Wales, covering flood, bushfire, sea level rise and more.

Free instant previewCSIRO-powered data

What A$49 could save you from

$7.2B
2022 insured disaster losses*
$300B+
climate risk to property by 2050*
30-120%
insurance premium increases in high-risk areas*

*Industry sources: ICA, APRA, RBA

Full report from A$49 · Australian addresses only · 8 hazard scores · Insurance trajectory · 2030 & 2050 projections