Lake Manchester Dam

The Lake Manchester Dam is a concrete gravity dam with an un-gated spillway across the Cabbage Tree Creek that is located in the South East region of Queensland, Australia. The main purpose of the dam is for potable water supply of Brisbane. The impounded reservoir is called Lake Manchester.Location and featuresThe dam is located in the area surrounding the suburb of the same name, approximately north of. The primary inflow of the reservoir is the Cabbage Tree Creek, not far above its confluence with the Brisbane River. Its original purpose was to supplement supplies when the flow of the Brisbane River was low. Today it is one of a number of dams connected to the South East Queensland Water Grid.The concrete dam structure is high and long. The 45e3m3 dam wall holds back the 26000ML reservoir when at full capacity. From a catchment area of that includes much of the western slopes of the D'Aguilar Range, the dam creates Lake Manchester, with a surface area of. The uncontrolled un-gated spillway has a discharge capacity of. Initially managed by the Metropolitan Water Supply and Sewerage Board, and then the Brisbane City Council, management of the dam was transferred to Seqwater in July 2008.