Flood Planning in Ballarat

The City of Ballarat and the CCMA are together undertaking flood planning for 11 waterways across the Ballarat municipality.

Flooding can cause significant damage to property and risk to life. Flood planning is important as it identifies areas at risk of flooding which allows the City of Ballarat to make land use and development decisions to reduce the impacts of flooding. It also allows the City of Ballarat to identify areas where flood mitigation and infrastructure works are needed as well as assisting residents and emergency management authorities to plan for the impact of possible large flood events in the future.

The 11 waterways include: Yarrowee River, Gnarr Creek, Canadian Creek and tributaries, Bonshaw Creek, Redan Creek, Kensington Creek, Chase Waterway, Little Bendigo Creek, Hit or Miss Gully, Warrenheip Creek and Ryans Drain.

What is the Flood Planning process?

The flood planning process includes modelling the hydrologic inputs (such as rainfall and runoff) and the calibration of these models against historic floods. The hydraulic behaviour of floods (such as flood heights, extents and velocities) is then also modelled and again calibrated against historic floods. Finally, an assessment is made of the likely consequences of floods of different sizes at particular locations.

What are the outcomes of Flood Planning?

  • Mapping to support the CCMA in responding to planning referrals and flood advice requests
  • Mapping to support a draft Planning Scheme Amendment to introduce flood provisions in the Ballarat Planning Scheme

A number of recommendations from the flood study are made for each relevant agency including the City of Ballarat, CCMA and Vic State Emergency Service, including:

  • Updates to the Municipal Flood Emergency Plan (MFEP)
  • Upload the mapping data to FloodZoom and the Victorian Digital Twin database
  • Preferred options for flood mitigation measures

What are we planning for?

The Local Government Act 2020 requires councils to develop an integrated, longer-term and transparent approach to planning that supports councils to plan for the sustainable development and well-being of their communities. The requirements for Strategic Planning are governed by the Planning and Environment Act 1987 and the key statutory document guiding land use decisions in Ballarat is the Ballarat Planning Scheme.

The City of Ballarat has an obligation under the Planning and Environment Act 1987 to ensure the objectives, policies and controls for the use, development and protection of land in the City of Ballarat are regularly reviewed and remain current in the Ballarat Planning Scheme.

Infographic: By 2041 Ballarat's population will grow by 55,000, Ballarat's existing and future growth areas will need to plan for around $2 billion of new infrastructure, Ballarat will need an extra 29,000 homes by 2041, Ballarat needs to plan for 17,500