Six Mile Creek Dam Safety Upgrade project - draft impact assessment report

Closed 11 Mar 2019

Opened 11 Feb 2019


Queensland's Coordinator-General invites you to have your say on the draft impact assessment report (IAR) for the Six Mile Creek Dam Safety Upgrade project.

Prepared by the proponent, Seqwater (Queensland Bulk Water Supply Authority), the draft IAR describes the project and its potential direct and indirect environmental impacts, both positive and negative.

You are invited to make a submission on the draft IAR, including the project's potential environmental impacts and the effectiveness of measures proposed to manage those impacts.

The Coordinator-General will consider all submissions as part of the evaluation.

About the project

Seqwater (Queensland Bulk Water Supply Authority), proposes to replace the existing Six Mile Creek Dam infrastructure on the Sunshine Coast using modern safety standards to better endure a major flood event. The project is located at Lake Macdonald within the Noosa Shire Council local government area, approximately 4 kilometres north-east of Cooroy.

The Six Mile Creek Dam Safety Upgrade project is needed to improve dam safety, ensure the long-term local and regional water supply and ensure the ongoing recreational use of Lake Macdonald.

The project is expected to require capital expenditure of $100 million and provide a peak construction workforce of 110 jobs during the two-year construction phase. The capacity and inundation area of the new dam would remain the same as the existing dam.

The majority of the construction footprint would generally be located within Lot 118 MCH814 and Lot 1 RP800331 currently owned by Seqwater, with some activities encroaching onto the road reserves of Lake Macdonald Drive and Collwood Road.

How to make a submission

There are three different ways to make a submission on this draft IAR. You only need to lodge your submission using one of these methods. Replicated responses received through different methods will only be counted as one submission.   

  1. Click on the ‘Make a submission’ link below
  2. Email your submission to
  3. Post your submission to:

           Attention: The Coordinator-General
           c/ Project Manager – Six Mile Creek Dam Safety Upgrade project
           Coordinated Project Delivery
           Office of the Coordinator-General
           PO Box 15517
           City East Qld 4002 Australia

You can read the draft IAR online or by visiting one of the following display locations between 11 February 2019 and 11 March 2019 during the venues’ business hours:

  • Cooroy Library, 9 Maple Street, Cooroy
  • Noosaville Library, 7 Wallace Drive, Noosaville
  • State Library of Queensland, Cultural Centre, Stanley Place, South Bank, Brisbane (electronic only)
  • National Library of Australia, Parkes Place W, Canberra (electronic only)

Note: If you wish to attach anything (e.g. maps, images or supporting documents), please use the email option instead of the online form.

What happens next

The Coordinator-General will consider all submissions and the draft IAR provided by the proponent, before considering to accept as the final IAR.

The Coordinator-General will prepare a final evaluation report on the final IAR either approving or refusing the project.


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