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Completed projects

Completed projects
Phase 1A

The $32m Phase 1A project was jointly funded by $16m from the Victorian Government with a co-contribution of $16m from Southern Rural Water on behalf of the MID customers. The works, which began in 2013 and was completed in June 2017, included:

  • upgrade of regulators in the Nambrok-Denison supply system, most of the channels in the Eastern system and all of the Heyfield channels
  • construction of the Willang Yarn balancing storage in Denison
  • further expansion of the outlet rationalisation and modernisation program
  • detailed design of the $65m Southern Tinamba pipeline for funding in Phase 1B

Taken together, the works in Phase 1A have saved an estimated 12 gigalitres (12 GL). Some of the savings have already been offered to the irrigation market through allocation and permanent share auctions, along with a small distribution to MID customers in 2018 in proportion to their delivery share. 

Some of the other benefits include:

  • modernised systems for three supply zones
  • reduced times between orders and delivery in modernised areas along with less shifting of orders
  • on-farm benefits for modernised outlets including more consistent flow rates and higher flow rates
  • more efficient irrigation practices reduce farm run-off and drain outfall, which reduces nutrients heading down to the Gippsland Lakes
  • better asset conditions, investing in the district and supporting future food production
  • improved safety by removing manual handling of regulator drop bars

For more information on the completed work, case studies and benefits, click here.

Phase 1B

The $66m Phase 1B project was jointly funded from the Victorian and Federal Governments with a co-contribution from Southern Rural Water. The work to replace channels with pipeline and to rationalise and modernise outlets began in 2017 and was completed in late 2019.

For more information on the completed work, case studies and benefits, click here.

Willang Yarn Balancing Storage

The $6M Willang Yarn balancing storage, near Denison, is a key component of the MID2030 irrigation modernisation program, which is upgrading systems to secure more efficient use of water throughout the district and more flexibility for customers.

The storage was Southern Rural Water’s largest single capital sub-project on completion in 2017 and was a significant milestone in the $32m Macalister Irrigation District 2030 Phase 1A modernisation. The Phase 1A associated works were completed in June 2017.

Before the balancing storage construction, the Main Southern Channel did not allow for full channel automation to be implemented, due to legacy issues associated with the long distance from Lake Glenmaggie and Thomson River and the lack of control on the Cowwarr channel. The Eastern Irrigation Business identified the storage as a high priority to improve the service to customers in the western part of the MID.

During construction, SRW asked the Gunaikurnai Land and Waters Aboriginal Corporation (GLaWAC) to suggest a name for the storage. Willang Yarn means “rain water” and representatives from GLaWAC participated in the launch, providing a Welcome to Country and conducting a Smoking Ceremony.

Some key facts about Willang Yarn:

  • Footprint of 8.5 hectares
  • Total volume of 186 megalitres (160 megalitres usable)
  • Water can be sourced from from Lake Glenmaggie and the Thomson Dam or river
  • Entirely gravity-fed: no electricity or pumps
  • 1.8 metres usable head in the storage
  • One of Rubicon’s most complex integration projects to date: 96 scenarios have been programmed and tested

Willang Yarn balancing storage, Denison


Southern-Cowwarr Regulator Retrofit Program

Under the Southern-Cowwarr Regulator Retrofit Program Southern Rural Water modernised regulators in Zone 4 (Nambrok-Denison) in the MID. The works were completed over the 2014-15 winter maintenance periods.

The total capital cost of the proposed project is estimated at $11.2m. The projects produced water savings of 4 GL as well as improved levels of customer service.

Eastern Regulator Retrofit Program

Under the Eastern Regulator Retrofit Program, SRW  modernised regulators in Zone 5 (Eastern) in the MID. The works were completed over the 2014-15 winter maintenance periods.

The total capital cost of the proposed project is estimated at $6.05m. The project produced water savings of  3.8 GL as well as improved levels of customer service.

MID 2030 Leading Works Program

The Leading Works Program was a $5M investment in the modernisation of the MID, consisting of the following projects:

  • Nambrok-Denison Stage 1 and 2 Regulator Retrofit Programs
  • Eastern Stage 1 and 2 Regulator Retrofit Programs
  • Stage 1 and 2 of the Outlet Rationalisation Program
  • Heyfield Regulator Retrofit Program
  • Design and construction of the Southern-Cowwarr Balancing Storage
  • Southern-Tinamba Outlet Rationalisation Investigation
  • Southern-Tinamba Prototype Outlet Investigation
Southern Rural Water acknowledges and recognises Aboriginal people as the Traditional Owners and Custodians of the land and waters on which we work and live, and we respect their deep and ongoing connection to Country. For more about the First Nations peoples on whose Country we work, click here.