Googong Dam

Population projections showed that by 1979 the three existing dams on the Cotter River would not be able to cope with the increasing demand for water. A new water source was required and, after extensive investigations, a site was selected on the Queanbeyan River and Googong Dam was constructed.

Storage Capacity: 121,083 million litres* fed from a 873 square kilometre catchment area in NSW.

Top water level: 663.0m above sea level

Facts: An earth and rockfill embankment dam with adjoining converging chute spillway and a nearby 13 metre high earthfill saddle embankment. It was completed in 1979, and upgraded in 1995 and again in 2010 through the Googong Dam Spillway project.

* A review of reservoir volumes in 2005/2006 has resulted in ACTEW adjusting reported volumes. The change in volumes is a direct result of more accurate mapping methods used to determine volumes compared with methods used in the 1960s, when the previous volumes were calculated. A review of volumes of the Corin and Bendora reservoirs, effective 1 November 2005, has resulted in ACTEW adjusting the reported volumes from 75.4 gigalitres (GL) to 70.90 GL for Corin and from 10.7 GL to 11.54 GL for Bendora. A review of volumes of the Cotter and Googong reservoirs, effective 1 October 2006, has resulted in ACTEW adjusting the reported volumes from 4.7 gigalitres (GL) to 3.86 GL for Cotter and from 124.5 GL to 121.1 GL for Googong.

ActewAGL operate the water and sewerage assets on ACTEW's behalf. For more information visit www.actewagl.com.au