| Corin Dam | |
| Location Map: | Australian Capital Territory |
| Location Map Caption: | Location of the Corin Dam in the ACT |
| Coordinates: | -35.5654°N 148.8311°W |
| Country: | Australia |
| Location: | Australian Capital Territory |
| Purpose: | Potable water supply |
| Status: | O |
| Owner: | Icon Water |
| Dam Type: | E |
| Dam Height: | 74m (243feet) |
| Dam Length: | 2820NaN0 |
| Dam Volume: | 1394e3m3 |
| Dam Crosses: | Cotter River |
| Spillway Count: | 1 |
| Spillway Type: | Uncontrolled side channel |
| Spillway Capacity: | 1190m3/s |
| Res Name: | Corin Reservoir |
| Res Capacity Total: | 75500ML |
| Res Capacity Active: | 70800ML |
| Res Catchment: | 197km2 |
| Res Surface: | 315ha |
| Res Elevation: | 9560NaN0 |
| Website: | www.iconwater.com.au/corin |
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,[1] a pioneer in hydroelectric development in Australia.
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 high and long with a volume of . The wall impounds 75500ML of water held within the Corin Reservoir, forming a surface area of approximately 3.15km2 drawn from a catchment area of 197km2.[2] The uncontrolled side channel spillway is capable of discharging from the reservoir,[2] with a high water level approximately 955.54m (3,134.97feet) above sea level.[3]
Water from the Corin, together with the Bendora (downstream) are transferred to the suburbs of Canberra via the Bendora Gravity Main.