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Central Coast Council is preparing a Floodplain Risk Management Study and Plan for the Woy Woy Peninsula.

This project is being undertaken with the support of the NSW Government’s Floodplain Management Program.


Project Objectives

Understanding of flood behaviour and impacts in the Woy Woy Peninsula.

Better informing management of flood risk in the area.

Investigating practical, feasible and economic management measures to treat existing, future and residual risk.

Why is this project important?

The Woy Woy Peninsula experiences flooding caused by two primary sources: overland flows generated by large storm events and rising ocean levels due to high tides and/or storm surges.  

Flooding has the potential to cause considerable damage and disruption to a community. In addition to damages to roads, properties, and potential loss of lives, floods may also increase levels of stress on affected populations.


The primary goal of the project is to reduce the impact of flooding on the community.

Ocean Beach Road looking north 26 3 1956
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Winfred avenue Umina from Ocean Beach Ro

Woy Woy Peninsula Flood Study

Completed by DHI in 2010

  • Determined flood behaviour within the Peninsula due to local storm runoff.

  • Nature and extent of flooding      Design flood flows, levels and velocities.

Brisbane Water Foreshore

  • Flood impacts due to ocean‐driven storm events within the Brisbane Water estuary.

  • Outlined regional scale options for managing the flood risk.

Woy Woy Peninsula Floodplain Risk Management Study and Plan

  • Next step in the NSW Government’s Floodplain Risk Management Process.

  • Based on information from the preceding flood studies.

  • Will evaluate, recommend and prioritise measures for managing the existing, future and continuing flood risk across the catchment.

Flood Study (2013) and Floodplain Risk Management Study & Plan (2015)

Who is involved?

The study is being prepared by the consultants: 

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The Catchments and Coast Committee will assist Council in the development and implementation of a floodplain risk management plan for the catchment. This advisory group comprises of elected Council members, specialist Council staff, various state agency representatives and also members of the local community. 


As part of this study, Council will work collaboratively with State Government, consultants and the community to assess options for managing flood risk such as protection works, improved infrastructure, revised emergency response procedures and planning controls. The Floodplain Risk Management Plan will recommend the most appropriate measures for implementation.


The project will be jointly funded by Central Coast Council and the NSW Department of Planning, Industry and Environment (formerly NSW Office of Environment and Heritage).

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