Cotter saddle dam

The Bulk Water Alliance (BWA) represented by a joint venture of Abi Group and John Holland contracted Menard Oceania to manage the gin grouting (crack injection) operations over the two new saddle dams of the Enlarged Cotter Dam project. The project consisted in the drilling of 70 primary holes, 70 secondary averaging a depth of 30 metres deep and 140 tertiary holes to an average depth of 18 metres deep.

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