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Georges River Council - Overland Flood Study for Hurstville Mortdale and Peakhurst Wards

Georges River Council at its meeting on 6 June 2016, formally endorsed the draft Overland Flow Flood Study of the former Hurstville Local Government Area.

The Overland Flow Flood Study forms part of an overall future Floodplain Risk Management Plan for the Georges River Local Government Area. The key objective of the Plan is to reduce the impact of flooding and flood liability on individual owners and occupiers of flood prone properties, and to reduce potential private and public losses resulting from floods, utilising ecologically positive flood mitigation measures. In order to comply with NSW Government Flood Prone Land Policy and meet the requirements of the NSW Floodplain Development Manual Councils are required to undertake a Floodplain Risk Management Study to determine what land has the potential to be affected by flooding, from both elevated sea levels and intense rainfall.

The Overland Flow Flood Study is the first step in developing the Floodplain Risk Management Plan, and involves a comprehensive technical investigation of flood behaviour within the area. The study provides detailed information on the nature of the flood risk including the distribution, extent, levels and velocity of floodwaters across the floodplain for various scenarios, and represents best practice in identifying flood risks in NSW. Georges River Council’s Overland Flow Flood Study is a comprehensive technical investigation of flood behaviour within the area covered by Hurstville, Mortdale and Peakhurst Wards. The Flood Study provides detailed information on the nature of the flood risk including the distribution, extent, levels and velocity of floodwaters across the floodplain for various flood events including the 100 Year Flood and Probable Maximum Flood.

Hurstville LGA Overland Flow Flood Study - 100yr Flood Maps
Hurstville LGA Overland Flow Flood Study - PMF Flood Maps

pdf icon Hurstville LGA Overland Flow Flood Study Report (25.34MB).

The study was jointly funded by Council and the NSW Government Office of Environment and Heritage (OEH).

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