Narellan Creek Overland Flood Study (Vol 1) - Flipbook - Page 5
FOREWORD
The NSW State Government9s Flood Prone Land Policy is directed towards providing
solutions to existing flooding problems in developed areas and ensuring that new
development is compatible with the flood hazard and does not create additional flooding
problems in other areas. The Policy is defined in the NSW Government9s 8Flood Risk
Management Manual9 (NSW Government, 2023).
Under the Policy, the management of flood liable land remains the responsibility of Local
Government. The State Government subsidises flood mitigation works to alleviate existing
problems and provides specialist technical advice to assist Local Government in its floodplain
management responsibilities.
The Policy provides for technical and financial support by the State Government through the
following stages:
The Narellan Creek Catchment Flood Study represents the second of the five stages in the
process outlined above. The aim of the overland flow study is to produce detailed
information on flood discharges, levels, depths and velocities, for a range of flood events
under existing topographic and development conditions. This information can then be used
as a basis for identifying those areas where the greatest flood damage is likely to occur,
thereby allowing a targeted assessment of where flood mitigation measures would be best
implemented as part of the subsequent Floodplain Risk Management Study and Plan.
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