Scheme Name:
Scottsdale Irrigation Scheme - Under Development
Volume:
8,600 ML
Irrigable Area:
17,366 ha
Communities:
Scottsdale, Bridport, Waterhouse
Status:
Construction
Progress:
  • Preferred Option
  • Business Case
  • Rn.2 Water Sales
  • Tenders
  • Construction
  • Mar 2013
  • Oct 2014
  • Sep 2015
  • Dec 2017
  • May 2018

SIS Construction Underway

On 2 May 2018 the Australian and Tasmanian Governments announced that work will begin immediately on the $57.3 million Scottsdale Irrigation Scheme, turbo-charging agricultural production in North-East Tasmania.

The Australian Government will commit $25.27 million, the State Government $20 million and farmers $12.03 million to the scheme; which will provide 8,600 megalitres to more than 80 farmers.

North-East Tasmania is one of our most productive agricultural regions and the Scottsdale scheme will add security of supply for farmers and incentivise further investment and jobs in regional Tasmania.

The Scottsdale Irrigation Scheme is the fifth and final Tranche 2 scheme delivered by Tasmanian Irrigation and is expected to create 60 jobs during construction and 45 in ongoing support and on-farm.

The Camden Rivulet dam will be designed and constructed by lead contractor: Hazell Bros Group; and the Pump Station, Power Station & Pipelines will be designed and constructed by lead Contractor: VEC Civil Engineering.  These lead contractors will be supported by more than a dozen Tasmanian based sub-contractors. Tasmanian Irrigation will also directly engage contractors Zezt (Wynyard) to supply HDPE pipe; and Bermad to supply valves and fittings.

Detailed engineering design of the scheme has commenced. Some preliminary works may commence in June; however, most construction work (e.g. laying of pipelines) is expected start around October 2018. On this timeline the first deliveries of water to irrigators is expected to flow in January 2020.

If you have any queries about the scheme, please feel free to contact one of the SIS Working Group members, who include: Michael Coote (Chair), Peter Sattler, Bob Bush, Robin Thompson, Cameron Moore and Victor Hall; or contact Project Manager (Andy Corbould) on 0417 341 141 or andy.corbould@tasirrigation.com.au

Scheme Background

The scheme will comprise a dam on Camden Rivulet, a tributary of the St Patrick's River, to store winter flows. Environmental flows will be released in winter; and all summer flows will be passed though the dam. In the summer, irrigation water will be released to the St Patricks River pump station via the 1km dam-fill pipeline; and then boosted via a 7km pipeline over the Sidling Range and then down by gravity through a mini-hydro station, into the existing Headquarters Road dam. Water allocated to this scheme will flow through an 84km underground pipeline around Scottsdale and on to the Waterhouse area. There will also be direct releases to boost flows in the Great Forester River, Hurst Creek and Brid River for direct take.

The proposed Scottsdale Irrigation Scheme comprises of the entire Great Forester and Brid River catchments, as well as parts of Boobyalla, Tomahawk and Little Forester River catchments. This 94,000ha area includes two distinct sub-regions. The drier northern sub-region, extending along the coastal plains and adjoining lowlands between Bridport and Waterhouse differs significantly from the wetter and more fertile southern sub-region, which extends along the inland hills and valleys from Springfield to Forester. Current irrigation is primarily applied to pastures, mainly dairy and some livestock finishing, with the remaining water used for cropping (potatoes, poppies and fresh vegetables). The potential irrigable area of this region is 17,366ha of which only 4,185 or 25% is currently under irrigation.

In completing the Business Case Tasmanian Irrigation has completed a number of feasibility studies including preliminary design and cost estimates, hydrology, ecology, geology and geotechnical assessments. TI also has briefed key stakeholders including Dorset and Launceston Councils, TasWater, dam site landowners, Inland Fisheries, Anglers Alliance the Tasmanian Conservation Trust.

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