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NSW Flood Data Portal

Floodplain Risk Management Study

Wianamatta South Creek Cumulative Impact Assessment (Rev E)

In recognition of the significant development pressures in the Wianamatta South Creek catchment, this Cumulative Impact Assessment was commissioned to inform Infrastructure NSW, NSW Department of Planning and Environment – Environment and Heritage Group and Councils within the Catchment (Camden, Blacktown Liverpool and Penrith) of the flood constraints that could impact on development within the South Creek catchment. The assessment uses the adopted hydrologic and hydraulic models for the catchment from ‘Wianamatta South Creek Catchment Flood Study – Existing Conditions’ (Revision I, Advisian 2022) to define contemporary flood characteristics and to test a range of development and floodplain modification scenarios.

The assessment:

  • highlights the critical importance of maintaining areas of flow conveyance and flood storage.

  • developed mapping of the areas critical to the conveyance of floods that should not be disturbed or too heavily vegetated

  • provides a list of recommendations that are considered essential for mitigating the cumulative impacts of potential future development in the Wianamatta South Creek Catchment

Additional Information

Field Value
Title Wianamatta South Creek Cumulative Impact Assessment (Rev E)
River Basin 212 - Hawkesbury
Publication Date 24 January 2023
Themes Land and Resource Management
Author/ Prepared by Advisian
Publish date 13 June 2023
Update date 13 June 2023
Place Name South Creek Catchment
Approval State Approved
Submitted for approval 13 June 2023
Submitted by HNV Flood Risk Management Directorate
Approved 14 June 2023
Approved by mdaley
Identifier 75eb216f-1544-4572-a1b7-4cb119d8ae26