Ertech was contracted to expand the water storage dam to 6GL storage capacity to provide long term water security to mitigate the risk of running out of water. The project involved the construction of a water storage dam using locally sourced construction materials. The water will be pumped into the D6 Dam from the Hotham River Pump Station No 1 and 2.
The project involved the construction of a water storage dam using locally sourced construction materials. In constructing the dam, Ertech needed to minimise the impact to surrounding environment, in particular, to the Hotham River upstream and downstream of the dam. To achieve this outcome, it was necessary to install a diversion pipeline around the D6 dam footprint so as not to block off the water flow downstream of the gully.
The project was plant and labour intensive as construction materials were primarily sourced from site. Extensive site investigation and borrow test pitting was required to identify the best borrow pit locations prior to establishing and managing borrow pit and materials.
