Historical floodplain management plans

Historically, the management of rural floodplains relied upon the preparation of localised floodplain management plans under Part 8 of the Water Act 1912. These localised floodplain management plans were designed to achieve the following outcomes to the benefit of both rural communities and the floodplain environment, allowing farmers to plan for future sustainable development based on a strategic scheme for the management of floodwaters:

• Mapping of floodplain development, major flood flow-paths and flood-dependent ecosystems to better manage floodplain assets
• Mapping of unobstructed floodway networks to identify effective passage of floodwaters and maintain floodplain connectivity to protect and enhance flood-dependent ecosystems and fish passage
• Provision of guidelines to determine where landholder flood protection works can and cannot be constructed
• Provision of remedial solutions to resolve hydraulic and environmental ‘hot-spots’ using a strategic risk management approach
• Provision of assessment criteria for regulating existing and future flood control works within floodway networks

Localised floodplain management plans prepared under Part 8 of the Water Act 1912 are superseded upon the commencement of a floodplain management plan under the Water Management Act 2000.

Of the 22 localised floodplain management plans originally prepared under Part 8 of the Water Act 1912, 12 remain in-force across New South Wales. The Natural Resources Commission will be reviewing these floodplain management plans in 2020.

For more information about the transition of floodplain management planning from the Water Act 1912 to the Water Management Act 2000 in New South Wales, download Floodplain management under the Water Management Act 2000: A guide to the changes. (PDF 397.4 KB)

Floodplain management plans
Billabong Creek: Walbundrie to Jerilderie Area=2,500 km2 Adopted May 2006 Billabong Creek Floodplain Management Plan ((PDF 4.6 MB))
Edward and Wakool Rivers (Deniliquin to Moama-Moulamein Railway): Stage 1 Area=1,500 km2 Adopted November 2010 Edward and Wakool Rivers Stage 1 Deniliquin to Moama-Moulamein Railway ((PDF 1.2 MB)) Appendix C Stage 1 floodway network maps: Figure 1.0 Key map: Stage 1 FMP floodway network ((PDF 1.1 MB)) Figure 1.1 Sheet 1 of 7 ((PDF 2.7 MB)) Figure 1.2 Sheet 2 of 7 ((PDF 580.6 KB)) Figure 1.3 Sheet 3 of 7 ((PDF 1004.7 KB)) Figure 1.4 Sheet 4 of 7 ((PDF 2.6 MB)) Figure 1.5 Sheet 5 of 7 ((PDF 1014.7 KB)) Figure 1.6 Sheet 6 of 7 ((PDF 2.7 MB)) Figure 1.7 Sheet 7 of 7 ((PDF 2.7 MB))
Wakool River (Moama-Moulamein Railway to Gee Gee Bridge): Stage 2 Area=1,600 km2 Adopted November 2010 Wakool River Stage 2 Moama-Moulamein Railway to Gee Gee Bridge ((PDF 1.1 MB)) Appendix C Stage 2 floodway network maps: Figure 2.0 Key map ((PDF 1.1 MB)) Figure 2.1 Sheet 1 of 5 ((PDF 2.7 MB)) Figure 2.2 Sheet 2 of 5 ((PDF 930.7 KB)) Figure 2.3 Sheet 3 of 5 ((PDF 1.0 MB)) Figure 2.4 Sheet 4 of 5 ((PDF 905.7 KB)) Figure 2.5 Sheet 5 of 5 ((PDF 2.7 MB))
Edward and Niemur Rivers (Moama-Moulamein Railway to Liewah and Mallan): Stage 3 Area=1,400 km2 Adopted November 2010 Edward and Niemur Rivers Stage 3 Moama-Moulamein Railway to Liewah and Mallan ((PDF 1.1 MB)) Appendix C Stage 3 floodway network maps: Figure 3.0 Key map ((PDF 1.1 MB)) Figure 3.1 Sheet 1 of 5 ((PDF 2.6 MB)) Figure 3.2 Sheet 2 of 5 ((PDF 2.7 MB)) Figure 3.3 Sheet 3 of 5 ((PDF 2.7 MB)) Figure 3.4 Sheet 4 of 5 ((PDF 2.6 MB)) Figure 3.5 Sheet 5 of 5 ((PDF 2.5 MB))
Edward and Wakool Rivers (Noorong Road to Wakool-Murray Junction): Stage 4 Area=2,000 km2 Adopted July 2000 Edward and Wakool Rivers Floodplain Management Strategy Noorong Road to Wakool Murray Junction ((PDF 645.2 KB)) Figure 1 Location of Stage IV area ((PDF 79.9 KB)) Figure 2 Overall scheme ((PDF 88.9 KB)) Figure 3 Approval process for flood control works ((PDF 73.9 KB)) Figure 4 Streams contributing to flooding ((PDF 71.0 KB)) Figure 5 Flow distribution ((PDF 105.8 KB)) Figure 6 1993 flood flows ((PDF 105.5 KB)) Figure 7 Satellite image ((PDF 756.6 KB)) Figure 8 Proposed floodway ((PDF 534.9 KB)) Floodway network: Figure 9 ((PDF 743.1 KB)) Figure 10 ((PDF 671.7 KB)) Figure 11 ((PDF 637.1 KB)) Figure 12 ((PDF 588.3 KB)) Figure 13 ((PDF 650.8 KB)) Figure 14 ((PDF 669.4 KB)) Figure 15 ((PDF 644.7 KB)) Figure 16 ((PDF 626.5 KB)) Figure 17 ((PDF 596.5 KB)) Figure 18 ((PDF 531.5 KB))
Lachlan River: Gooloogong to Jemalong Gap Area=1,000 km2 Adopted January 2011 Lachlan River Gooloogong to Jemalong Gap Floodplain Management Plan ((PDF 774.4 KB)) Appendix B Figure 2 FMP floodway network maps: Sheet 1 ((PDF 4.1 MB)) Sheet 2 ((PDF 3.7 MB)) Sheet 3 ((PDF 4.4 MB)) Sheet 4 ((PDF 4.0 MB)) Figure 3 FMP floodway network and mapped wetland vegetation maps: Sheet 1 ((PDF 3.1 MB)) Sheet 2 ((PDF 3.8 MB))
Lachlan River: Jemalong Gap to Condobolin Area=1,600 km2 Adopted 2012 Lachlan River Jemalong Gap to Condobolin Floodplain Management Plan ((PDF 892.8 KB)) Figures 4.1 to 4.4 1990 model results [flows and velocities] ((PDF 1.3 MB)) Figures 4.5 to 4.8 FMP floodway network ((PDF 1.5 MB)) Figure 5.1 FMP floodway network zones ((PDF 454.0 KB)) Figures 6.1 to 6.4 FMP floodway network and mapped wetland vegetation ((PDF 1.6 MB))
Lachlan River: Lake Brewster Weir to Whealbah (Hillston) Area=1,600 km2 Adopted October 2005 Lachlan River Hillston Floodplain Management Plan – Lake Brewster to Whealbah ((PDF 3.9 MB)) Hillston floodplain management – floodway network and flood fringe area: Sheet 1 ((PDF 749.3 KB)) Sheet 2 ((PDF 824.8 KB)) Sheet 3 ((PDF 749.7 KB)) Sheet 4 ((PDF 757.3 KB)) Sheet 5 ((PDF 888.8 KB)) Sheet 6 ((PDF 1.5 MB)) Sheet 7 ((PDF 1.3 MB))
Macquarie River: Narromine to Oxley Station Area=2,560 km2 Adopted December 2008 Macquarie River Narromine to Oxley Station Floodplain Management Plan ((PDF 2.4 MB)) Appendix A – Required modifications to existing and proposed flood control works – Figures A1 to A13 ((PDF 4.1 MB)) Appendices B to D – Monitoring, Design, Applications ((PDF 179.1 KB)) Appendix E FMP floodway network maps – Maps 1 to 7 ((PDF 1.3 MB)) Flow distribution – Figures 4.1 to 4.3– 1995, 1990, 2000 floods ((PDF 586.4 KB)) Floodway network and mapped floodplain vegetation – Figures 6.1 to 6.7 ((PDF 2.8 MB)) Flood volume distribution – Figures 8.1 to 8.3– 1955,1990, 2000 floods ((PDF 608.3 KB))
Murrumbidgee River: Hay to Maude Area=1,700 km2 Adopted April 2014 Murrumbidgee River Hay to Maude Floodplain Management Plan ((PDF 1.1 MB)) Figures 2A to 2E FMP floodway network ((PDF 4.4 MB)) Figures 3A to 3C FMP floodway network with flood-dependent ecosystems ((PDF 4.0 MB)) Figures 3D to 3E FMP floodway network with flood-dependent ecosystems ((PDF 1.8 MB)) Figure B1 Flow and flood level monitoring sites ((PDF 1.0 MB)) Figures C1 to C5 Details of improvement measures [Sites A to E] ((PDF 3.1 MB)) Figures C6 to C10 Details of improvement measures [Sites F to J] ((PDF 3.8 MB))
Namoi River: Narrabri to Wee Waa Area=750 km2 Adopted September 2005 Namoi River Narrabri to Wee Waa Floodplain Management Plan ((PDF 923.5 KB))
Tuppal and Bullatale Creeks: Murray River offtake to Deniliquin Area=1,700 km2 Adopted May 2004 Tuppal and Bullatale Creeks Floodplain Management Plan ((PDF 524.2 KB)) Figure 4.1 ((PDF 1.3 MB)) Figure 4.2 ((PDF 1.2 MB)) Figure 4.3 ((PDF 1.2 MB)) Figure 4.4 ((PDF 1.2 MB)) Figure 5.1 ((PDF 1.3 MB))