Taswater Notice: Mikany safety closure

Media Release Mikany Dam 23 January 2020

Media Release
Mikany Dam upgrade begins
Smithton, Stanley and Irishtown will soon have greater water surety into the future as TasWater commences its Mikany Dam upgrades.

The dam, built in 1972, is fed by the Deep and Muckeye Creeks catchment and is the main source of water for the communities connected to the TasWater network.

“At the time, the construction of the dam adhered to dam regulations but now an upgrade is needed to provide greater water security for the region,” TasWater Project Manager for the Capital Delivery Office Colm O’Sheehan said.

Northern Tasmanian construction company Gradco has been selected to undertake the Mikany Dam upgrade project, with site preparation set to commence in February.

“During the time of construction, the dam will be shut from the public for 18 months,” Colm said.

“Public access to the dam must be restricted as the dam transitions into a construction site.”

Water supply to the Circular Head township will not be affected, during and post construction. Once complete, the dam will not only guarantee supply into the future, but also improve its flood capacity.

“Currently, spillway at Mikany has the capacity of outflow during a one in one-hundred-year Annual Exceedance Probability (AEP) flood event. “

“Once complete, the Mikany Dam capacity will be improved to a one in ten-thousand-year flood event, complying to recent Australian national dam safety standards.”

“The inundation area of the lake will not be increased as part of the upgrade to protect the natural
environment surrounding the lake.”

Weather depending, the project is expected to be completed by the end of August 2021.

Residents who want more information about this project can contact TasWater on 13 6992 and ask for Nani Clark, Capital Delivery Office Stakeholder and Community Engagement Officer, or email enquiries@taswater.com.au

Alternatively, visit www.yoursay.taswater.com.au/taswater-capital-delivery-office-cdo

Further information: TasWater media contact: Elanor Watt 0436 924 882