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

NSW Flood Data Portal

Guidance, Tools and Resources

Coonamble Levee - Flood Affection to Properties Due to Failure

The objective of this study was to assess flood affection to properties located inside Coonamble Levee due to two levee breach scenarios, with two design floods investigated for each scenario. The levee failure scenarios defined by DECCW after consultation with the State Emergency Service (SES) included the following:

  • A 75m gap in the Levee 0.5m above the natural surface near Coonamble Hospital; and
  • A 75m gap in the Levee 0.5m above the natural surface in the vicinity of northern end of Namoi Street.

This report is structured as follows:

  • Section 1 – Introduction
  • Section 2 – Available Data: Provides details on the data used in this study
  • Section 3 – Hydraulic Modelling: Estimation of flood levels inside Coonamble Levee for the levee breach scenarios
  • Section 4 – Flood Affection to Properties: Assessment of flood affection to buildings inside Coonamble Levee for the levee breach scenarios
  • Section 5 – Conclusions: Key conclusions on flood affection inside Coonamble Levee for the levee breach scenarios assessed in this study.

Additional Information

Field Value
Title Coonamble Levee - Flood Affection to Properties Due to Failure
Publication Date 1 June 2010
Themes Land and Resource Management
Spatial Extent
Map data © OpenStreetMap contributors
Council/LGA Coonamble Shire Council
Author/ Prepared by Sinclair Knight & Partners Pty Ltd
Publish date 28 May 2020
Update date 28 May 2020
Approval State Approved
Submitted for approval 29 May 2020
Submitted by Akhil Sud
Approved 29 May 2020
Approved by akhil
Identifier 7b2a46de-e9d8-4dcf-844b-54bceb65a3bb