You are here: Home > Water > Coastal and floodplain management > Floodplains > Rural floodplain management plans > Macquarie River (Narromine to Oxley Station) Floodplain Management Plan

Macquarie River (Narromine to Oxley Station) Floodplain Management Plan

Since the completion of Burrendong Dam in 1965 and the transformation of the Macquarie River from carrying intermittent to regulated flows, the Macquarie floodplain has experienced considerable irrigation development.

While the floodplain is a very successful farming and irrigation area, damaging floods over many years have resulted in the uncoordinated construction of crop protection works. In common with many other rural areas that have undergone irrigation development, the Macquarie floodplain is showing signs of stress related to alterations in flow patterns across the floodplain. Within this floodplain there are environmentally important areas that rely on flooding to sustain essential ecological processes or cultural features, including areas of flood dependent vegetation, wetlands and floodplain watercourses.

The Macquarie River (Narromine to Oxley Station) Floodplain Management Plan provides an integrated scheme for the management of floodwaters in the lower Macquarie Valley. The Macquarie River floodway network is designed to effectively convey floodwaters downstream, including to environmentally important areas within the plan area as well as to the Macquarie Marshes.

While the plan identifies areas on the floodplain that need to be kept clear of obstructions to ensure water is able to reach critical ecological assets, the plan will also expedite the approval process for works that are assessed as complying with the plan. Works have been identified that will need to be modified to prevent the obstruction of floodways and affected landholders have played an important role in designing these modifications.

Download

Macquarie River (Narromine to Oxley Station) Floodplain Management Plan

• Main report (08553macquariefmp.pdf, 2.5 MB)
• Appendix A - Required modifications to existing and proposed flood control works - Figures A1 to A13 (08553AppendixAMaps.pdf, 4.5 MB)
• Appendixes B to D (08553AppendixBtoD.pdf, 179 KB)
• Appendix E

• FMP floodway network - Maps 1 to 7 (08553MRFMPnetwork.pdf, 1.4 MB)

• Flow distribution - Figures 4.1 to 4.3 - 1995, 1990, 2000 floods (08553MRFMPflowdist.pdf, 500 KB)

• Floodway network and mapped floodplain vegetation - Figures 6.1 to 6.7 (08553AppendixE2.pdf, 593 KB)

• Flood volume distribution - Figures 8.1 to 8.3 - 1955, 1990, 2000 floods (08553MRFMPvoldist.pdf, 500 KB)