Mikany Dam Upgrade

What's this project all about? 

Mikany Dam is located six kilometres south-east of Smithton in the state’s north west. It is referred to by local residents as Lake Mikany.

The dam was originally built in 1972 and has two main embankments, as well as a smaller embankment which provides access to an island in the centre of the lake. The dam is gravity-fed from Deep Creek and Muckeye Creek catchments and is the primary source of potable water for Smithton, Stanley and Irishtown. Water is supplied to these towns via Deep Creek to an off-take downstream, where it is pumped to a treatment plant at Smithton prior to distribution. 

TasWater identified a need for upgrades to meet improving Dam Safety standards and associated Australian National Committee on Large Dams (ANCOLD) guidelines. As a result, a substantial investment is required to reduce the risk the dam poses, while also providing a sustainable water supply for customers.

The major features of this upgrade include:

• Increasing the strength of both embankments by constructing filter and rock-fill berms
• A small increase in the height of the dam wall to provide protection in the event of an extreme significant flood
• The result of the upgrade will be a dam which meets modern standards, is safe, improves water security, and can provide flood protection for much larger floods.

Project updates

Mikany Dam

CDO Client Representative, Tim Cubit - Mikany

Circular Head Mayor – Daryl Quilliam and Circular Head Manager of Engineering and Projects - Mikany

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