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Client:

SA Water Corporation

Value:

$7.3m

Location:

Riverland, South Australia

Contract Period:

May 2016 - July 2017

Margaret Dowling and Bank J Regulator Structures

York Civil was awarded construction of new flow regulating infrastructure and road and pedestrian bridges at Margaret Dowling and Bank J in the Pike and Katfish Reach Floodplains.

At Margaret Dowling Creek, works comprised:

  • Regulator and fishway construction
  • Earthworks
  • Temporary works
  • Erosion protection
  • Construction of a new road bridge on Lock 5 Road over the Margaret Dowling Creek
  • Design and construction of a new pedestrian bridge over the creek
  • Supply and installation of floating barriers at the approaches to the pedestrian bridge, regulator and fishway structures
  • Remediation of disturbed areas
  • Demolition of the existing regulator and Lock 5 Road culvert

At Bank J, the works involved:

  • Regulator and fishway construction
  • Earthworks
  • Temporary works
  • Structural steel and flow regulating equipment
  • Erosion protection
  • Construction of an integrated bridge deck for maintenance and firefighting equipment.

Bank J also included the construction of a 1km access road and a culvert crossing for an ephemeral creek.

As the Margaret Dowling site is a prominent public amenity for the area, there was concern that the park would not be rehabilitated in time for the summer season, when it is used extensively by the local community. To mitigate this issue, York Civil worked with the local council and SA Water to coordinate a staggered release of the site for revegetation by the Council, and the park was successfully revegetated prior to the summer period.

York Civil also supported the client with commitments to preserve a pedestrian bridge that required removal. To facilitate this, the pedestrian bridge was removed intact and relocated by road to the local Paringa Museum. York Civil then worked with local counsellors and museum volunteers to re-install the bridge over a pond within the museum.

The Margaret Dowling project has received significant positive feedback from members of the community, the local council, and the Principal.

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