Kangaroo Creek Dam upgrade progresses, adding height and widening spillway

30 March 2017

SA Government: SA Water is undertaking the second and third stages of work in a $94 million safety upgrade of Kangaroo Creek Dam in the Adelaide Hills.

The project will widen the spillway by an average of 33 metres and strengthen and increase the dam wall height by five metres.

This will help SA Water better manage any major floods and increase the damís ability to withstand earthquakes.

The reservoirís water level has been gradually lowered over the past few months to around 60 per cent to allow works on the dam outlet to resume following heavy rainfall mid-last year.

Minor blasting to remove rock from the hillside next to the spillway also commenced in August 2016 and will continue for the next several months.

Background

South Australian contractor Bardavcol began construction in early 2016, with work expected to be completed in 2019.

220 full-time workers are employed directly and indirectly for the life of the project.

During blasting events at the dam, traffic restrictions are in place to ensure the safety of motorists on Gorge Road and each blast is designed and monitored to ensure noise and vibration is appropriately controlled.

The lowering of the reservoir level has also been timed (where possible) to support initiatives such as amenity flows in the River Torrens to help with the control of blue green algae.

Included in the projectís cost is around $1 million for the revegetation of two other dam sites to offset the removal of vegetation at Kangaroo Creek during construction.

 

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Source:  South Australian Government - www.premier.sa.gov.au

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