FAQs
What is a flood study?
A flood study is a technical project that identifies flood behaviour such as depth, velocity and extent across the floodplain for a wide range of flood events. It aims to provide an understanding of the full range of flood behaviour and consequences in the study area. It involves consideration of the local flood history, available flood data, and the development of hydrologic (rainfall and runoff estimations) and hydraulic (motion of stormwater runoff) models. Where possible, models are calibrated and verified against historic flood events and then extrapolated to estimate the full range of potential flood events.
What is a Floodplain Risk Management Study and Plan?
A Floodplain Risk Management Study utilises the flood intelligence developed in a flood study to investigate possible mitigation options to reduce flood damage and to manage flood risk. It allows for testing and investigating practical, feasible and economic management measures, including structural and non-structural measures, to treat existing, future and residual risk. The Floodplain Risk Management Study will provide a basis for informing the development of a Floodplain Risk Management Plan.
The Floodplain Risk Management Plan will document the decisions on the management of flood risk within the floodplain into the future. The Plan will outline a range of measures to manage risk effectively and efficiently, using the investigations undertaken as part of the Floodplain Risk Management Study. This will include a prioritised implementation strategy, which will detail how measures could be implemented.
What area is the study covering?
The primary area covered in this study is the 50km reach of the Clyde River from upstream of the Yadboro River confluence through the localities of Yadboro, Mogood, Morton, Brooman and Currowan to the southern boundary of the Shoalhaven City Council LGA at the confluence with the Currowan River. This is known as the Study Area.
The study area is comprised of properties which quickly, and for an extended period, become isolated due to the catchment response time and existing low-level waterway crossings which comprise bridges, causeways and fords.
The study area included in this investigation is illustrated on the Locality Map and Catchment Map.
How will this study impact me?
The objective of this study is to better inform flood risk management for property owners and publicly managed community assets. The overall goal is to increase community safety while mitigating damage to private and public assets.
This study will create flood intelligence for the NSW SES to plan and respond to flood events, develop an implementation plan for flood mitigation measures within the floodplain, and provide information to the community to improve their resilience during flood events.