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Flood study

Murrumbidgee River at Darlington Point and Environs Flood Study

The township of Darlington Point is located in the Murrumbidgee LGA in south-western NSW and has a population of 1,016 (2011 census). The town is situated in the floodplain of the Murrumbidgee River, approximately 36 km to the south of Griffith. Downstream of Narrandera, the Murrumbidgee River floodplain becomes broad and flat, whereby it is difficult to accurately delineate a catchment boundary.

The primary objective of the Flood Study is to define the flood behaviour of the Murrumbidgee River at Darlington Point through the establishment of appropriate numerical models. The study has produced information on flood flows, velocities, levels and extents for a range of flood event magnitudes under existing catchment and floodplain conditions. Specifically, the study incorporates:

  • Compilation and review of existing information pertinent to the study;
  • Development and calibration of appropriate hydrologic and hydraulic models;
  • Determination of design flood conditions for a range of design event including the 20% AEP, 10% AEP, 5% AEP, 2% AEP, 1% AEP, 0.5%, AEP 0.2% AEP and an Extreme Flood event; and
  • Presentation of study methodology, results and findings in a comprehensive report incorporating appropriate flood mapping.

The principal outcome of the flood study is the understanding of flood behaviour in the catchment and the derivation of design flood level information that will be used to set appropriate flood planning levels for the study area.

Additional Information

Field Value
Title Murrumbidgee River at Darlington Point and Environs Flood Study
Publication Date 12 December 2018
Themes Land and Resource Management
Spatial Extent
Map data © OpenStreetMap contributors
Council/LGA Murrumbidgee Council
Author/ Prepared by BMT WBM
Publish date 11 June 2020
Update date 11 June 2020
River Basin 410 - Murrumbidgee
Approval State Approved
Submitted for approval 11 June 2020
Submitted by Akhil Sud
Approved 11 June 2020
Approved by dstazic
Identifier 17b7ffc8-840d-4602-be75-79ef5138f03b