Enlarged Cotter Dam
The Bulk Water Alliance included the delivery of the Murrumbidgee to Googong water transfer scheme, upgrade works to the existing Googong Dam Spillway and new pumping facilities at the Murrumbidgee River. The key deliverable for this Alliance however, was the construction of the Enlarged Cotter Dam.
The enlarged Cotter Dam expanded the storage capacity of the Cotter Reservoir from 4 Gigalitres (Gl) to approximately 78Gl – a twenty-fold increase – and is sited downstream of the existing dam. The new 80 metre high dam was constructed of roller compacted concrete (RCC), and is the highest dam of its type in Australia.
- Engineering Excellence Award - 2013 Engineers Australia Excellence Awards (Canberra Division);
- Highly Commended Award -2013 Awards for Excellence in Concrete.