The Mannum-Adelaide pipeline was the first major pipeline built from the River Murray to serve Adelaide. The pipeline project was started in 1949 and completed in March 1955. After suffering water restrictions every summer from 1949 to 1954, in the summer of 1957-1958 Adelaide was the only mainland capital not subject to restrictions.
The pipeline is 60 kilometres long, and goes from Mannum to Modbury. It also supplies various areas alongside its route. The pipeline supplies water through the Anstey Hill Water Filtration Plant to Warren Reservoir, thence to Mount Bold and Happy Valley reservoirs.