When it’s full, Mount Bold holds more than 46 billion litres of water – that’s enough to fill Adelaide Oval 93 times! The reservoir was built in the 1930s following rapid population growth and years of low rainfall.

It was opened in November 1938 by South Australia’s then Governor, Major-General Sir Winston Joseph Dugan.

A dam on the Onkaparinga (forming Mount Bold Reservoir) had the added advantage of being able to transfer water along the Onkaparinga to Happy Valley Reservoir, saving the expense of laying large trunk mains.

From Mount Bold, water travels to the Clarendon Weir and then to Happy Valley Reservoir where it is treated before being supplied as safe, clean drinking water to about 500,000 homes and businesses across metropolitan Adelaide.

The dam wall is more than 200 meters long with the water in Mount Bold spread over an area of more than 300 hectares.

Neighboured by Kuitpo Forest about an hour’s drive south of Adelaide, you can take the public access road to the dam wall. Here you can take in the size of this majestic reservoir.