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SES - NSW State Emergency Service NSW Government - Office of Environment and Heritage

NSW Flood Data Portal

Flood study

Little Creek Catchment Overland Flow Flood Study

The Little Creek catchment is located north of the M4 Motorway and drains to South Creek with the study area covering parts of the suburbs of Oxley Park, Colyton, St Marys and North St Marys. The catchment includes crossings of the Great Western Highway and the Main Western railway line and covers an area of approximately 480 hectares. The primary objective of this Flood Study is to define design flood behaviour for a wide range of design flood probabilities. Other objectives/components are to:

  • collate available historical flood related data;
  • collect detail survey of stormwater infrastructure;
  • undertake a community consultation program;
  • prepare suitable models for use in a subsequent Floodplain Risk Management Study;
  • validate the models against historical events;
  • undertake sensitivity of the model results to modelling parameters and assumptions;
  • provide design flood levels, depths, velocities, flows and flood extents;
  • assess the capacity of the existing drainage network and identify potential upgrades;
  • assess the sensitivity to potential climate change effects; and
  • assess floodplain planning categories and undertake provisional hazard mapping.

Additional Information

Field Value
Title Little Creek Catchment Overland Flow Flood Study
Publication Date 1 June 2017
Themes Land and Resource Management
Spatial Extent
Map data © OpenStreetMap contributors
Council/LGA Penrith City Council
Author/ Prepared by WMAwater
Publish date 15 May 2019
Update date 20 May 2019
Approval State Approved
Submitted for approval 16 May 2019
Submitted by Akhil Sud
Approved 20 May 2019
Approved by dstazic
Identifier a3e8d060-97c4-4033-8061-50dd785a8574