Flood reserve projects 2016-17

The NSW Government's floodplain management grants support local government to manage flood risk.

Twenty-eight projects valued at $5,941,325 have been activated from the reserve list under the 2016-17 Floodplain Management Program. The funding for these projects comes from the Floodplain Grants Scheme (jointly funded by the NSW Office of Emergency Management and the Commonwealth Government under the 2015-17 National Partnership Agreement on Natural Disaster Resilience). These grants are administered by the Office of Environment and Heritage.

Project summaries

Ballina Shire Council

Ballina Island and West Ballina Flood Protection Feasibility Study and Plan

This project will develop a strategy to protect the existing urban footprint of Ballina Island and West Ballina below the one percent annual exceedance probability flood level from mainstream, storm surge and local overland flooding that can be adapted for future sea level rise. The strategy will be used to implement development controls, identify feasible infrastructure upgrades and structural protection measures available to reduce the impacts of flooding to Ballina Island and West Ballina.

Bellingen Shire Council

Lower Bellinger and Kalang Rivers Floodplain Risk Management Study and Plan – Stage two

This project will determine the flood risk and flood behaviour for the Lower Bellinger and Kalang River catchments. This information will be used in a strategic manner in the development of decision-making processes, land use planning and development controls to:

  • minimise both the exposure of people to flood hazard and the potential damages to property and infrastructure
  • establish a broad range of floodplain management measures which can be assessed across a broad range of floods up to the Probable Maximum Flood
  • establish floodplain management measures that are appropriate to the location and acceptable to the local community.

Bourke Shire Council

Louth Flood Study, Floodplain Risk Management Study and Plan

Louth is located on the banks of the Darling River, approximately 100 kilometres south-west from Bourke and relies on a levee of unknown structural integrity to protect the township from flooding from the River.

This project will involve a comprehensive flood study of Louth and look at a range of works and measures to minimise risk exposure in the township. This will result in a comprehensive plan that outlines high priority works that can be implemented to address the full range of potential flood risks.

Byron Shire Council

North Byron Flood Risk Management Study and Plan

There is considerable development pressure in the North Byron catchment and Council is currently preparing a future residential development strategy. This project will develop a risk management study and plan for the area to ensure that the existing and future development will be managed in accordance with flood hazards.

Canterbury-Bankstown Council

Cooks River Catchment Floodplain Risk Management Study and Plan – Stage two

This project will complete a floodplain management study and plan that covers an area of 27 square kilometres, which is over 80% of the total area of the former Canterbury local government area. In this area, it has been identified that 690 properties are being affected by main stream flooding and 6000 properties being affected by overland flow flooding in a one percent annual exceedance probability event.

The floodplain risk management plan will identify a range of risk management measures to address the flooding problems of the study area and identify how these measures can be implemented in terms of timing and resources.

Coffs Harbour City Council

Boambee – Newports Creek Flood Mitigation Works Investigation and Design

There is extensive residential, commercial and industrial development on the floodplain, which includes the Coffs Harbour Health Campus which is the major-medical facility for the region, housing Coffs Harbour Base hospital and the local ambulance centre. North Boambee Road is cut off by flood waters by a 1 in 20-year event.

This project will implement works that are focused on lowering flood levels by improving the conveyance efficiency of the drainage system. They will lower one percent annual exceedance probability flood levels in the nearby industrial and commercial areas by up to 500 millimetres reducing the danger, inconvenience and commercial loss from flooding.

Boambee – Newports Creek Flood Mitigation Works: Investigation and Design Detention Basin

This project will develop a design for the North Boambee Valley detention basin, which is proposed to be constructed in the upper catchment adjacent to Englands Road. The basin will reduce one percent annual exceedance probability flood levels by up to 420 millimetres and adds to the effectiveness of the conveyance improvement also being carried out in this area.

Coffs Harbour Flood Mitigation Works – Upper Shephards Lane Detention Basin

Coffs Harbour was severely flooded in 1996 with one fatality and extensive property damage. Extensive property damage also occurred in the 2009 floods.

This project will construct the Upper Shephards Lane detention basin. The detention basin will halve the peak 100-year flood flow from 39 cubic metres per second to 20 cubic metres per second, resulting in the number of residential homes inundated by the 100-year flood dropping from 308 to 236 and will reduce flood levels by up to 0.42 metres at Grafton Street, Coffs Harbour once all the detention basins are complete.

Woolgoolga Flood Evacuation Investigation

The Sunset Caravan Park has about 170 dwellings that are flooded in a probable maximum flood. Virtually the entire site has a high flood hazard classification. Evacuation is required during major flood events, however the only evacuation route is cut by fast flowing deep floodwaters. This project is to investigate options for achieving improved flood evacuation access, as well as developing a detailed concept plan for the most feasible option.

Eurobodalla Shire Council

Batemans Bay Urban Creeks Flood Study

This project will prepare a flood study for urban creeks in Batemans Bay and will identify flood behaviour in the main urban areas. It is estimated that over 520 properties are potentially flood affected in the area including residential lots, caravan parks, a nursing home and two schools. The area will also be significantly impacted by sea level rise with the same flood affected properties being inundated by daily tides within a 50-year planning period.

This project will allow the different flood mechanisms on the coast to be identified and will inform a coordinated approach to identifying the different mechanisms associated with coastal flooding and inundation.

Narooma Coastal Inlets Floodplain Risk Management Study and Plan – Stage two

This project will prepare a Floodplain Risk Management Study and Plan for Narooma Coastal Inlets. It has been identified that there is currently a significant flood affected area with over 312 residential lots and forty commercial properties below the flood planning levels. The area will also be significantly impacted by sea level rise. This project will identify options to manage the existing and long term risks from flooding in the Narooma area.

Goulburn Mulwaree Council

Goulburn Mulwaree Floodplain Risk Management Study and Plan

This floodplain risk management study and plan will investigate viable flood risk management measures in consideration of social, ecological and economic factors and inform current and future flood risk. It will provide a strategic forward plan for Council and the community consistent with the NSW Floodplain Development Manual.

Kempsey Shire Council

Lower Macleay Flood Risk Management Plan – Stage one Flood Study

This project will undertake a flood study for the Lower Macleay River Floodplain to replace an existing outdated plan. It will provide up to date accurate flood data for use in the development of a new updated flood risk management plan for the Lower Macleay River Floodplain. The plan will incorporate mitigation and planning controls, flood readiness and response plans, flood warnings, ongoing data collection and monitoring.

Liverpool City Council

Brickmakers Creek Channel Improvement Works – Elizabeth Drive to Campbell Street

The Floodplain Risk Management Plan adopted for Brickmakers Creek recommended channel improvement works between Elizabeth Street and Orange Grove Road and construction of a detention basin at Amalfi Park to significantly attenuate flows and reduce flooding within the entire creek corridor.

This project is the final stage of the channel improvement works along Brickmakers Creek. Completion of proposed improvement works will further reduce flooding risks along Brickmakers Creek.

Lockhart Shire Council

The Rock East – Streven Street Drain

In 2010 and 2012 The Rock township experienced the largest flood events in its history. This project will construct drainage channels and structures to the east of town to reduce flood risk. The drain upgrades will improve transfer of water from east of The Rock to Burkes Creek and will include upgrades of the railway line and Olympic Highway culverts as well as new drains. Fifteen fewer properties will be flooded over floor once this work is implemented and an average annual saving to the community of $71,400 per year is expected.

Mid-Coast Council

Gloucester Floodplain Risk Management Study and Plan

Council will undertake a review of the Gloucester Floodplain Management Study and Plan to incorporate detailed information on flood flows, velocities, levels and extents for a range of flood event magnitudes under existing catchment and floodplain conditions, which will provide updated and more detailed flooding information and establish the basis for subsequent floodplain management activities.

Great Lakes Remote Areas Flood Study

This project will undertake a remote area flood study for the local government area, which includes upgraded models that a more consistent with regional digital elevation models. In addition, other flood history information will act to further refine the regional model. A significant community survey and engagement component is also anticipated.

Northern Beaches Council

Greendale Creek Flood Study

Council will undertake a catchment wide flood study for Greendale Creek to replace the previous localised flood study. Parts of the catchment, including the suburb of Brookvale, are under increasing pressure for an intensification of development, with major flagship developments either planned or already underway. Contemporary and accurate flood information for the catchment is important to ensure that proposed rezoning and future developments are designed to minimise the flood risk to future occupants.

McCarrs Creek, Mona Vale and Bayview Floodplain Risk Management Study and Plan

The McCarrs Creek, Mona Vale and Bayview Floodplain Risk Management Study and Plan will provide strategic direction for managing flooding in the suburbs of Mona Vale, Bayview, Church Point and parts of Ingleside and Newport on Sydney's Northern Beaches. This project will involve assessing the risk to life and proposing suitable flood response modification management options. It will include an assessment of the impact of structural integrity of dwellings, duration of inundation, potential evacuation routes and evacuation capability for both mainstream and overland flow flooding. The study will also identify any flood modification management options and assess their feasibility, effectiveness and impacts.

Rous County Council

Tuckean floodgate management plan review

The Tuckean floodgate management plan review will address the functional effectiveness and sustainability of Council's infrastructure on the Northern Rivers of NSW. This project will inform and update the Richmond Catchment flood model by providing a refinement of scale to allow feeder canals, drains and tidal variation inclusion. This approach will allow greater understanding of the hydrological function of the Tuckean floodgate, which is known as an acid hotspot. This will also allow Council to revise floodgate management plans in the area and support the community's desire for improved water quality in the Richmond River.

Shellharbour City Council

Elliot Lake Northern Detention Basins Concept Design

This project will undertake investigation and concept design of stormwater detention basins on Bensons Creek, Bensons Tributary and Oakleigh Creek in the suburbs of Warilla, Mt Warrigal and Barrack Heights. The project will provide the necessary information for Council to make an informed decision on implementing the works. The works are expected to reduce flooding experienced by the community downstream.

Horsley Creek Detention Basins Concept Design

This project will undertake investigation and concept design of stormwater detention basins in Horsley Creek. The project will provide the necessary information for Council to make an informed decision on implementing the works.

Temora Shire Council

Temora Flood Study

The Temora flood study will define the nature and extent of flooding in Temora. This will then allow for the future works and plans to be implemented to reduce the impact from flooding on the local community. Temora has suffered several flooding events and this project aims to assess levels of flooding and risk.

The Council of the City of Botany Bay

Botany Bay Foreshore Beach Floodplain Risk Management Study and Plan

Council will undertake a floodplain risk management study and plan of the Botany Bay foreshore beach catchment, which has had significant flooding issues. There have been several recorded instances of flooding in these catchments - in recent years including events that occurred in 1990, 1997, 1998, 2008 and 2011 and 2014.

The floodplain risk management study and plan will identify actions to prevent flooding of roads and properties during heavy storms.

Wagga Wagga City Council

Wagga Wagga Villages Floodplain Risk Management Study and Plan

Tarcutta, Ladysmith and Uranquinty are all located on the banks of tributary creeks of the Murrumbidgee River. The villages are subject to flood risks from localised overland flows and from swollen creeks bursting their banks.

This project will develop a floodplain risk management study and plan, which will assist Council in developing strategic plans for mitigating and managing the effects of existing, future and continuing flood risk.

Western Plains Regional Council

Eumungerie Village Flood Study Review, Floodplain Risk Management Study and Plan

The project will involve a comprehensive flood study for the village and will focus on the Drillwarrina Creek catchment as well as exploring the potential influence of the downstream confluence of the Coolbaggie Creek catchment. It will also address major overland flooding issues which originate from lands surrounding the village. The results of the work will provide accurate flood maps of the village which can be used in future planning of options to solve existing problems.

Woollahra Municipal Council

Watsons Bay flood diversion wall

This project will provide protection of low lying properties by construction of a diversion wall to direct upper catchment flows directly to Watsons Bay.

Yass Valley Council

Yass Floodplain Risk Management Study and Plan

This project will develop a floodplain risk management study and plan that will investigate viable flood risk management measures in consideration of social, ecological and economic factors and inform current and future flood risk. The project will provide a strategic plan for Council and the community with the intent to reduce the impacts on flooding to Yass.

Page last updated: 09 August 2017