Goldfields Superpipe

Background

In October 2006 the Premier of Victoria announced a new pipeline would be constructed to connect Ballarat to Goulburn. The pipeline draws water from the Waranga West Channel, which is supplied by the Goulburn River system, and transfers it to Ballarat and District Water Supply System.

Leed Engineering and Construction was responsible for the construction between Bendigo and Ballarat.

Project scope

This environmentally sensitive project traversed numerous properties and watercourses and consisted of:

  • 50 km DN750 MSCL and DICL pipe from Sandhurst Reservoir in Bendigo to south of the Loddon River
  • 12 Bored Crossings under road, rail and waterways
  • 117 Air valves, 40 Scour valves and 18 Inline Isolation valves
  • 1 km of works within Bendigo National Park at Big Hill
  • Cultural heritage issues involving aboriginal native title and heritage management
  • Environmentally sensitive project traversing numerous properties and watercourses.
  • Topography—the use of DICL and MSCL pipe depends on topography. For steeper topography Leed chose MSCL as joints can be welded to prevent leaking and eliminate the need for thrust blocks.

    In addition, we were required to undertake benching and excavation in rock, and in some, more difficult areas, we were required to blast the rock.
  • Project logistics—the pipeline work was split into three pipelaying crews to allow the work to be programmed concurrently and to meet project milestones.
  • Rapid reinstatement—Rapid reinstatement (including respreading topsoil and seeding) commenced as pipelaying was progressively completed.

    If a landowner had specific requirements such as a seed common to their property, we accommodated this in our reinstatement works.

Key features

  • Topography—the use of DICL and MSCL pipe depends on topography. For steeper topography Leed chose MSCL as joints can be welded to prevent leaking and eliminate the need for thrust blocks.

    In addition, we were required to undertake benching and excavation in rock, and in some, more difficult areas, we were required to blast the rock.
  • Project logistics—the pipeline work was split into three pipelaying crews to allow the work to be programmed concurrently and to meet project milestones.
  • Rapid reinstatement—Rapid reinstatement (including respreading topsoil and seeding) commenced as pipelaying was progressively completed.

    If a landowner had specific requirements such as a seed common to their property, we accommodated this in our reinstatement works.

Outcomes

Construction commenced in July 2007 and was completed ahead of schedule in the first half of 2008. The Goldfields Superpipe provides water security for 50 years to the major regional centres of Ballarat and Bendigo.

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