Corin Dam

The Corin Dam is an earth and rockfill embankment dam with an uncontrolled side channel spillway across the Cotter River, located within Namadgi National Park in the Australian Capital Territory, Australia. The impounded reservoir is called the Corin Reservoir which is a supply source of potable water for the city of Canberra and its environs. It is named after William Corin, a pioneer in hydroelectric development in Australia.

Location and features
Constructed by Thiess working from designs prepared by the Commonwealth Department of Works, the Corin Dam was completed and opened in 1968. The earthen dam wall built on a rock foundation is 74 m high and 282 m long with a volume of 1394 e3m3. The wall impounds 75500 ML of water held within the Corin Reservoir, forming a surface area of approximately 3.15 km2 drawn from a catchment area of 197 km2. The uncontrolled side channel spillway is capable of discharging 1190 m3/s from the reservoir, with a high water level approximately 955.54 m above sea level.

Water from the Corin, together with the Bendora (downstream) are transferred to the suburbs of Canberra via the Bendora Gravity Main.