Hope Valley Reservoir

The Hope Valley Reservoir is a 2840 ML service reservoir in Hope Valley, South Australia, a suburb of Adelaide, South Australia.

When completed in 1873 it was the second reservoir constructed in Adelaide; it is the oldest still in use in South Australia. It covers 52 ha and is retained behind a 950 m long clay-cored earth wall. Water is transferred from the River Torrens via a tunnel and aqueduct. The river is also used to transfer water from the Kangaroo Creek and Millbrook reservoirs.

In December 2020, the reservoir was opened to the public for the first time for activities including walking, running, cycling and picnicking.