Flood Risk in Mannum Waters, SA: 2026 Assessment

Mannum Waters, South Australia· UNKNOWN
Mannum Waters faces a moderate risk of flooding, primarily from the Murray River. Riverine flooding can inundate low-lying areas and impact properties close to the riverbank.Updated 16 Mar 2026

Flood Risk Score

6.5/10

Mannum Waters faces a moderate risk of flooding, primarily from the Murray River. Riverine flooding can inundate low-lying areas and impact properties close to the riverbank.

Key Facts

Flood Risk
Mannum Waters faces a moderate risk of flooding, primarily from the Murray River. Riverine flooding can inundate low-lying areas and impact properties close to the riverbank.
Trend
increasing
Suburb
Mannum Waters, SA
Overall Risk
Medium

Flood Risk Analysis

Mannum Waters, located in South Australia, has a notable 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 South Australia.

Local flood studies have identified areas at risk of inundation during high river flows.

Mannum Waters faces a moderate risk of flooding, primarily from the Murray River. Riverine flooding can inundate low-lying areas and impact properties close to the riverbank.

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.

Local Hazard Evidence

Nearest WaterwayMurray River
Elevation Range10-20 meters
Flood Zone ClassificationAreas adjacent to the Murray River are designated as flood zones.

Historical Events

2023
Moderate

Significant rainfall in the Murray-Darling Basin led to increased river flows and moderate flooding in Mannum Waters.

2016
Moderate

The Murray River experienced moderate flooding, impacting low-lying areas in Mannum Waters.

Adaptation & Mitigation Actions

Improve Flood Defenses

Near-term

Invest in infrastructure to mitigate flood risks, such as levees and improved drainage systems.

Est. cost: High

Develop Heat Action Plan

Immediate

Implement a heat action plan to protect vulnerable residents during heatwaves, including cooling centers and public awareness campaigns.

Est. cost: Medium

Enhance Bushfire Preparedness

Long-term

Maintain vegetation around properties and develop community bushfire preparedness plans.

Est. cost: Low

Upgrade Infrastructure

Long-term

Upgrade critical infrastructure to withstand extreme weather events, including power grids and water supply systems.

Est. cost: High

Council & Emergency Services

Mid Murray Council
Emergency Services

Data last updated: 16 March 2026

Explore Mannum Waters Risk Reports

Frequently Asked Questions

Is Mannum Waters at risk of flooding?

Based on available data, Mannum Waters has a notable 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 Mannum Waters?

Insurance costs for flood cover in Mannum Waters 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 Mannum Waters?

Yes, flood risk can affect property values in Mannum Waters. 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 Mannum Waters?

Elevation is a critical factor in flood risk. Properties at higher elevations within Mannum Waters 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 Mannum Waters Safe from Climate Risk?

Enter your address below for an instant climate risk assessment for Mannum Waters, South Australia, covering flood, bushfire, sea level rise and more.

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What A$69 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$69 · Australian addresses only · 8 hazard scores · Insurance trajectory · 2030 & 2050 projections