INQ238

Determine the appropriateness and the steps required to allow the reduction of full supply level by up to five metres and/or the implementation of alternative gate operation at Warragamba Dam for the mitigation of minor to moderate flood events in the short-term.

Ensure future road infrastructure planning considers flood evacuation requirements throughout the Hawkesbury-Nepean floodplain.

Ensure the SES has the long-term capacity to plan and exercise for the full range of flood events in the Hawkesbury-Nepean Valley

Undertake, coordinate and evaluate community education programs on flood risk and response.

Monitor, investigate and address community response to flood warnings

Develop mechanisms and arrangements to promote and provide greater access to flood risk information.

Develop and maintain a comprehensive flood model and flood modelling framework for the Hawkesbury-Nepean Valley.

Develop a NSW Planning Policy and Guideline to improve land use planning practices on flood prone land.

Provide improved land use planning tools for managing flood prone land.

Develop a comprehensive road evacuation network model for floods in the Hawkesbury-Nepean floodplain to inform evacuation capacity assessments and strategic transport and land use planning, and to assist with the real-time operational management of evacuation during floods.

Review the adequacy of current arrangements for infrastructure reconstruction following a major flood event in the Hawkesbury-Nepean Valley.

Optimise the configuration of a raised Warragamba Dam for flood mitigation of the full range of flood events and water supply, with due consideration of upstream impacts.

Develop and implement a program of cost-effective road improvement works that can enhance flood evacuation capacity in the short-medium term.

Improve regional transport infrastructure to address current and projected flood evacuation capacity constraints and timelines.

Establish a dedicated group or body within an existing agency to provide a more integrated, coordinated and regional approach to land use, infrastructure and evacuation planning and flood modelling in the Hawkesbury-Nepean Valley.

Review the NSW state-wide governance arrangements for flood risk management so that broader issues identified by this Review can be most effectively addressed.

Ensure effective flood gauging arrangements in the Hawkesbury-Nepean Valley

Clarify roles, responsibilities and consider funding options for post-event collection of data and flood intelligence.

Develop a Hawkesbury-Nepean Flood Recovery Plan, which identifies strategies and arrangement for recovery from severe floods in the Hawkesbury-Nepean Valley.

Ensure appropriate consideration of flood risk in regional and subregional planning