Glenbawn Dam is a major ungated earth and rock fill with clay core embankment dam with concrete chute spillway plus fuse plugs across the Hunter River upstream of Aberdeen in the Hunter region of New South Wales, Australia. The dam's purpose includes flood mitigation, hydro-electric power, irrigation, water supply and conservation. The impounded reservoir is called Lake Glenbawn.Glenbawn Dam was created through enabling legislation enacted through the passage of the. The Act appropriated A£ as the estimated cost of construction of the dam.Location and featuresCommenced in late 1947 and completed in late 1957, the Glenbawn Dam is a major dam on the Hunter River and is the fourth largest earth-filled embankment dam in Australia by volume. The dam is located approximately east of the town of Scone on the upper reaches of the river. The dam was built by the New South Wales Water Conservation & Irrigation Commission to supply water for irrigation and flood mitigation.