Project Summary

Wentworth Council is drafting a combined Wentworth Riverine and Major Overland Flow Flood Study. Under the Floodplain Management Program this process (to define the flood risks associated with both flooding mechanisms) is necessary before progressing to the development of a Wentworth Flood Risk Management Study and Plan (FRMS&P).

The purpose for the Wentworth Flood Study is to define the nature of both riverine (Murray and Darling River flooding) and local catchment type flooding at the urban centres of Wentworth, Dareton, Buronga and Gol Gol for flood frequencies. The Wentworth Flood Study focuses on the following two types of flooding which are present in different parts of the Local Government Area:

• Murray and Darling River flooding, which occurs when floodwater surcharges the inbank area of the Murray and Darling rivers, as well as their many anabranches. Murray and Darling River flooding is typically characterised by relatively deep and faster flowing floodwater in the main channel of the rivers but can include shallower and slower moving floodwater in overbank areas.
• Local catchment flooding, which is experienced at the four urban centres during periods of heavy rain. Local catchment flooding is typically characterised by relatively shallow and slow-moving floodwater.

The findings of the Wentworth Flood Study will be used as the basis for preparing the future Wentworth Flood Risk Management Study and Plan (Wentworth FRMS&P) which will assess options for flood mitigation and prepare a plan of works and measures for managing the existing, future and continuing flood risk in the four urban centres.