Flood planning

Blue graphic of a building with water lines underneath it.


The Lismore Floodplain Risk Management Plan is a comprehensive strategy developed to address the risks associated with flooding in the Lismore local government area.

The plan aims to reduce the impact of flooding on the community, the economy, and the environment through a range of measures, including flood mitigation works, land use planning, emergency management, and community engagement.

Lismore Floodplain Risk Management Plan

The Lismore Floodplain Risk Management Plan aims to minimise the exposure to flood hazard in Lismore’s developed areas and ensure that new development is compatible with the flood hazard and does not create additional flooding problems. Controls that apply to new development in the flood-prone urban areas of Lismore are in Chapter 8 of the Lismore Development Control Plan.

Lismore Floodplain Risk Management Plan(PDF, 2MB)

Lismore Floodplain Risk Management Plan Appendices(PDF, 893KB)

Lismore Flood Model: LiDAR Update

In 2013, Council received LiDAR data from the NSW Department of Land and Property Information (LPI) and commissioned Advisian (formerly WorleyParsons) to update a previous flood model using the new data.

The updated model includes increased detail in the terrain, updated ground elevations, an analysis of the impact of riverbank lowering near Bunnings on flood behaviour, a representation of constructed development and floodplain changes, updated floodplain categorization polygons, and incorporation of approved development as if it were constructed.

Final Report – Lismore Flood Model LiDAR Update(PDF, 5MB)

Richmond River Flood Mapping

The Richmond River Flood Mapping Study was conducted in 2008 and was funded by Richmond River County Council, Richmond Valley Council and the NSW Department of Environment, Climate Change and Water (DECCW) as the first step in the floodplain risk management process mandated by the New South Wales government's Flood Prone Land Policy.

The study is one of three studies aimed at understanding and managing flooding in the Richmond Valley area between Casino, Lismore, and Broadwater. The study area includes the Richmond River between Casino and Broadwater (excluding Casino), Bungawalbin Creek, Wilsons River from Lismore to Coraki (excluding Lismore), and the lower reaches of other major tributaries of the Richmond River such as Shannon Brook (Deep Creek) and Sandy Creek.

The study resulted in a calibrated hydrologic model of the entire Richmond River catchment, a calibrated 1D/2D hydraulic model of the floodplain between Casino, Lismore and Broadwater, and flood mapping of historical and design flood events, including flood levels and hazards.

Richmond River Flood Mapping Study Volume 1(PDF, 2MB)

Richmond River Flood Mapping Study Volume 2(PDF, 22MB)