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Following the construction of the Wimmera Mallee Pipeline, the channel system and the infrastructure GWMWater used along the Dunmunkle Creek to operate it, became redundant.

GWMWater is responsible for decommissioning the redundant structures between Glenorchy and Boolite to return the creek to as close to its natural state as practical.

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Dunmunkle Creek Asset Decommissioning Project Update - August 2020

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Project area


Project Steering Committee



Project Area

The project area starts at Glenorchy at the south end of the creek, to Boolite in the north.


Adobe PDF file icon 24x24 Dunmunkle Creek Project Map



GWMWater has inspected all assets and developed recommendations for each to either remove, partially remove or transfer the management of assets to other organisations or landholders.

This includes structures such as bridges, culverts, regulators and other structures.

The project also requires earthworks along the remaining channel banks to help slow and disperse water flow. 


Project Steering Committee

GWMWater has appointed a Project Steering Committee which works collaboratively to oversee the decommissioning or handing over of assets and includes representatives from GWMWater and:

  • Wimmera Catchment Management Authority
  • Northern Grampians Shire Council              
  • Yarriambiack Shire Council                             
  • Department of Environment, Land, Water and Planning
  • Regional Roads Victoria              
  • Landholder representatives: Howard Cooper of Glenorchy, Ian Taylor of Lubeck and Jason Mellings of Boolite.

Our landholder representatives will provide an important conduit between the community and the project team. If you would like to get in touch with any of the three landholders representatives, please call 1300 659 961 or This email address is being protected from spambots. You need JavaScript enabled to view it. to have your call or email re-directed.



We will work closely with the landholders to explain the proposed works and the terms of any removal or transfer of assets as well as the installation of breaks along the creek. We plan to contact landholders to start discussions about how the project may impact their property according to the below timeframe. Please note, we have experienced some delays the a revised timeline now applies:

Property location between

Discussion commencement not before

Wimmera River and Bryntirion Forest


Bryntirion Forest and Rupanyup


Rupanyup and Switchback Road

Not before 10 August 2020

Switchback Road and Lawler Road

Not before 24 August 2020


If this timeframe does not suit, or you haven’t heard from us within the month of June, please This email address is being protected from spambots. You need JavaScript enabled to view it..


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