Grahamstown Dam

Grahamstown Dam is a major off-stream earthfill Embankment dam with a controlled labyrinth spillway and baffle chute that stores water from the Williams River. The dam is located north of Newcastle and within the Port Stephens Council local government area in the Lower Hunter Region of New South Wales, Australia. The dam's main purpose is water supply; it provides about 40 per cent of the potable water for the Hunter region; and is the Hunter's largest drinking water supply dam. The impounded reservoir is called the Grahamstown Lake, the Grahamstown Swamp, or the Grahamstown Storage Reservoir. Location and featuresGrahamstown Dam is immediately adjacent to residential areas in the town of Raymond Terrace, less than 4km from the Raymond Terrace CBD. Commenced in 1955, completed in 1965, and commissioned in 1969, Grahamstown Dam is a major dam that receives its main inflow from the Williams River as well as its own catchment. Water flows into the Grahamstown Dam from the Williams River, upstream from the Weir, which limits the inflow of tidal seawater; via Balickera Canal and pumping station, which are used to transfer water from the Williams River to Grahamstown Dam. The Pumping Station; George Schroder Pumping Station and delivery mains are used to deliver water from the dam to the water treatment plant; and Grahamstown Water Treatment Plant.

Grahamstown Dam is a major off-stream earthfill Embankment dam with a controlled labyrinth spillway and baffle chute that stores water from the Williams River. The dam is located north of Newcastle and within the Port Stephens Council local government area in the Lower Hunter Region of New South Wales, Australia. The dam's main purpose is water supply; it provides about 40 per cent of the potable water for the Hunter region; and is the Hunter's largest drinking water supply dam. The impounded reservoir is called the Grahamstown Lake, the Grahamstown Swamp, or the Grahamstown Storage Reservoir. Location and featuresGrahamstown Dam is immediately adjacent to residential areas in the town of Raymond Terrace, less than 4km from the Raymond Terrace CBD. Commenced in 1955, completed in 1965, and commissioned in 1969, Grahamstown Dam is a major dam that receives its main inflow from the Williams River as well as its own catchment. Water flows into the Grahamstown Dam from the Williams River, upstream from the Weir, which limits the inflow of tidal seawater; via Balickera Canal and pumping station, which are used to transfer water from the Williams River to Grahamstown Dam. The Pumping Station; George Schroder Pumping Station and delivery mains are used to deliver water from the dam to the water treatment plant; and Grahamstown Water Treatment Plant.