Millbrook Reservoir, lake in Australia

Millbrook Reservoir is a large artificial body of water in the hills near Adelaide. The water is held back by a massive clay dam that is almost 1,000 feet long and has a storage capacity of 16 billion liters.

Construction of this reservoir began in 1914 during World War I and took about four years to complete. Its main purpose was to control water flow in the upper River Torrens and supply Adelaide and its eastern neighborhoods.

The reservoir takes its name from the small town of Millbrook, which was demolished and removed during construction, not flooded. In the 1970s the nearby town of Chain of Ponds was also removed to prevent pollution of the reservoir's water. The dam stands beside Chain of Ponds Creek, a tributary of the River Torrens.

Access to the reservoir itself is not permitted as it is an active water storage facility. Visitors can view and enjoy the surroundings from nearby walking paths, where quiet views of the water and surrounding landscape are available.

The dam and reservoir take their name from the small town of Millbrook, which was demolished and removed during construction, not submerged. In the 1970s the nearby town of Chain of Ponds was likewise removed to protect the reservoir's water from pollution.