At a Glance

  • Open daily, sunrise to sunset. Closed on Good Friday, Christmas Day, Total Fire Ban Days and for operational activity (gates will be closed).
  • Car parking available
  • Fishing, permit required
  • Canoeing/kayaking, permit required
  • Picnicking
  • Fees apply for permits
  • No dogs

Activities and facilities

Before visiting, please check the conditions of access.

With a fishing permit, you can drop a line in the from the shoreline in the fishing zone or on the water from a kayak or canoe.

To fish from a kayak or canoe you’ll need a current fishing permit. There are two launch areas.

Please note, there are no lifesaving services or resources at Warren Reservoir.

There are three picnic areas for you to enjoy, one is fully accessible and one has toilet facilities. See the site map for details.

Dogs are not welcome at reservoir reserves as they can carry harmful organisms that can easily contaminate the water and they pose a threat to local native birds and wildlife. Assistance animals are accepted.

Blue-green algae

Algae occur naturally in reservoirs and occasionally algal blooms can occur. This is more likely in the warmer months of the year, and they are not always visible.

Regular testing is undertaken as part of SA Water’s routine water quality monitoring. During a blue-green algal bloom, water treatment is adjusted to ensure the continued supply of safe, clean drinking water for customers.

Some blue-green algae produce toxins which can be harmful to humans and animals. Contact with the untreated water in the reservoir when high levels of blue-green algae are present can be harmful to your health.

When blue-green algae levels are extreme, reservoirs are closed to all activities that involve contact with the water, including fishing and kayaking/canoeing.

Signage on site will be updated and specific access and closure details are available on each reservoir page on this site.

To find out more, read SA Health’s information about blue-green algae health impacts and how to avoid illness.

Click map below for a print-friendly version.

What sets Warren Reservoir apart

Capacity: 4.7 gigalitres (one gigalitre is one billion litres), that will fill about 2,300 Olympic swimming pools

Constructed: 1914-1916

Warren Reservoir was built during World War One with a number of workers given a leave of absence to join the armed forces.

It was built to ensure water supply to the local area. When the natural springs supplying Eudunda dried up every summer, Warren Reservoir was built to ensure a reliable water supply for the local area.

The construction project supervisor Edgar Bradley was given a new Model 'T' Ford, at a cost of $444, so he could drive between Warren and Millbrook, where he was also supervising dam works. Edgar learnt to drive so he could make the 30 km journey between the two reservoirs in just one hour. The trip by horse and buggy had taken more than two.

You can check current reservoir levels at SA Water’s website.

Warren Reservoir mystery

There is a time capsule cast into the door lintel of the valve house built in 1926 including  a bottle of wine, some coins and a newspaper. Sorry, not accessible to visitors.

Water Quality

Warren Reservoir is one of 16 across South Australia.

Treating drinking water before it’s supplied to people’s homes, businesses, schools, hospitals and more, is important to make sure it is clean and safe to drink straight from the tap. You can learn how SA Water treats water and maintains the quality its customers value and rely upon.

Warren Reservoir is not currently used to directly supply drinking water.