Murrumbidgee Valley National Park – Yanga National Park Project

The Yanga National Park Project is part of Water Infrastructure NSW’s Sustainable Diversion Limit Adjustment Mechanism (SDLAM) program, which is part of the greater Murray-Darling Basin Plan. The SDLAM program puts measures in place to divert water using sustainable methods and infrastructure to ensure better environmental and community outcomes.

About the Yanga National Park Project

The Yanga National Park Project aims to improve the efficient delivery of environmental water using a range of infrastructure solutions, including modifying embankments and the upgrading of regulators that currently impact these flows. These improvements will allow for more efficient and effective use of water currently diverted from the Murrumbidgee River.

The project focusses on improving existing infrastructure and implementing new structures and diversion measures across the park to improve environmental water management.

Infrastructure works being considered include:

  • upgrading two primary regulators and a range of secondary regulators with either new structures, or new gate arrangements fitted to existing structures
  • upgrading road structures such as pipe or box culverts and sills, currently preventing water flow
  • reopening flood paths by modifying earthen embankments.

Project benefits

The project will deliver the following environmental and socio-economic benefits:

  • increased viability of native grasses, shrubs and trees such as lignum shrubland
  • improved movement of fish, and fish habitat and refuge
  • improved wetland condition, function and structure - meaning more favourable conditions for waterbirds and aquatic animals
  • improved conditions for native plant species by reducing over-watering and under-watering
  • the provision of drought refuge sites for native wetland fauna, sustaining and improving dispersal between riverine, wetland and floodplain habitat, maintaining ecological connectivity and increasing structural diversity of habitats
  • improved natural wetting and drying cycles to support aquatic flora and endangered native species such as the Australasian Bittern and the Southern Bell Frog.

Community engagement

We are committed to working together with stakeholders to design and deliver the best possible results for the region and its communities.

We have governance structures included in the project, such as advisory groups, representing stakeholders and helping to guide the project.

Additionally, at key points within the project pipeline we will engage with local communities and provide them opportunities for feedback.