Victorian Floodplain Management Strategy

Victorian Floodplain Management Strategy
Name	Victorian Floodplain Management Strategy
Jurisdiction	State of Victoria
Adopted	2016
Authority	Department of Environment, Land, Water and Planning

Victorian Floodplain Management Strategy The Victorian Floodplain Management Strategy provides a statewide approach to flood risk reduction across the State of Victoria, Australia, aligning policy, planning and operational activities to protect communities, infrastructure and ecosystems. It integrates statutory frameworks, technical guidance and community engagement to coordinate actions among agencies, local government and emergency services while balancing environmental values and land use. The strategy emphasizes evidence-based risk assessment, mapping, structural and non-structural measures, and continual monitoring to adapt to climate change and urban growth.

Overview

The strategy establishes a cohesive approach linking the Department of Environment, Land, Water and Planning with Country Fire Authority, Victoria State Emergency Service, Local Government Victoria, Goulburn-Murray Water, Melbourne Water, Catchment Management Authorities, Corangamite Catchment Management Authority, North Central Catchment Management Authority, West Gippsland Catchment Management Authority, East Gippsland Catchment Management Authority and other agencies. It references legislative instruments such as the Water Act 1989 (Victoria), the Planning and Environment Act 1987, the Emergency Management Act 2013 (Victoria), and aligns with national frameworks including the Commonwealth Government of Australia's flood resilience initiatives and guidance from the Bureau of Meteorology. The strategy situates floodplain management alongside infrastructure planning involving VicRoads, Transport for Victoria, Australian Rail Track Corporation, Melbourne Airport, and municipal flood alleviation works delivered by councils such as City of Melbourne, Greater Geelong City Council, Banyule City Council and Wellington Shire Council.

Historical Context and Rationale

Historical flood events such as the Murray River floods of 1956, the Victorian floods of 1974–75, the Eastern Victorian floods of 1998, the Melbourne floods of 2010–2011, and localized incidents impacting Yarra River precincts demonstrate the need for coordinated policy. Lessons from landmark programs like the Flood Mitigation Program (Victoria) and international comparators including the Netherlands Delta Programme, Mississippi River Commission, Thames Barrier operations and the Hurricane Katrina response inform technical and governance reforms. Legal precedents from Victorian planning disputes and inquiries such as the Victorian Flood Inquiry and reviews commissioned after major events underpin the strategy's emphasis on risk-based land use, ecosystem resilience and community preparedness.

Policy Framework and Objectives

The strategy articulates objectives consistent with statutory responsibilities held by agencies including the Environment Protection Authority Victoria, Victorian Planning Authority, Department of Health and Human Services (Victoria), and Parks Victoria. Key objectives include reducing community vulnerability, guiding strategic land use decisions under the Victorian Planning Scheme, integrating ecosystem-based adaptation exemplified by work in the Barmah-Millewa Forest and Gippsland Lakes, and protecting heritage places listed by the Heritage Council of Victoria. It endorses standards and protocols from the Australian National Committee on Large Dams and complements floodplain policy in federal initiatives led by the Attorney-General's Department (Australia) and the Department of Infrastructure, Transport, Regional Development and Communications.

Implementation and Program Components

Implementation spans capital projects, non-structural measures, community education and emergency response preparedness. Structural measures reference design guidance used by Melbourne Water and engineers from firms working on projects for CityLink and port precincts like the Port of Melbourne. Non-structural programs include strategic planning controls with councils including Yarra Ranges Shire Council, Hobsons Bay City Council and Mildura Rural City Council, incentives for voluntary land buybacks in flood-prone suburbs, and nature-based solutions tested in the Werribee River and Barwon River catchments. The program coordinates funding through entities such as the Victorian Grants Commission, partnerships with the Australian Red Cross, and capital contributions from state agencies and the Infrastructure Victoria pipeline.

Governance and Stakeholder Roles

Governance arrangements assign roles across statutory agencies, emergency services and local government authorities, with advisory input from research institutions including Commonwealth Scientific and Industrial Research Organisation, University of Melbourne, Monash University, La Trobe University, and the University of Ballarat. Stakeholders include landowners, industry groups such as the Victorian Farmers Federation, environmental NGOs including Trust for Nature (Victoria), Conservation Volunteers Australia, and peak bodies like the Municipal Association of Victoria. Interagency coordination mechanisms mirror arrangements used by the State Control Centre and regional controls akin to protocols used by Emergency Management Victoria during declared incidents.

Risk Assessment and Mapping

Risk assessment relies on hydrological and hydraulic modelling guided by the Bureau of Meteorology rainfall datasets, river gauge networks maintained by Goulburn-Murray Water and coastal monitoring by the Australian Institute of Marine Science. Mapping standards reflect national practice established by the Geoscience Australia and spatial datasets from the Land Use Victoria, integrating digital elevation models, LiDAR surveys conducted for river corridors such as the Avon River (Victoria), and suite-based modelling tools used by the Floodplain Management Australia network. Flood risk categories inform planning overlays in local planning schemes administered by councils including Ballarat City Council and Swan Hill Rural City Council.

Monitoring, Evaluation and Adaptive Management

Monitoring combines telemetry from agencies including Melbourne Water and Goulburn-Murray Water with post-event reviews modeled on inquiries like the Royal Commission into National Natural Disaster Arrangements and academic evaluations from universities. Evaluation uses performance indicators aligned with targets set by Infrastructure Victoria and reporting obligations to the Victorian Parliament through the responsible minister. Adaptive management promotes iterative policy refinement drawing on climate projections from the Intergovernmental Panel on Climate Change, scenarios used by the Commonwealth Scientific and Industrial Research Organisation (CSIRO), and collaborative research partnerships with institutions such as Australian National University and regional bodies like the Gippsland Lakes Coordination Committee.

Category:Flood control in Australia