Bushfire recovery support and resources now available for land managers affected by the Deep Creek and Nangkita fires.
Dam enlargement, construction and development
Are you planning construction or enlargement of a dam?
Before starting any work to construct, enlarge or modify a dam, you must have water affecting activity permit in place.
Carrying out works without the necessary permits can lead to compliance action and additional costs.
It is important to be aware that due to the high number of existing dams and the need to protect water-dependent ecosystems, most applications for new or enlarged dams within the Mount Lofty Ranges are currently not being approved.
Contact our water resources team early to discuss your plans and confirm what approvals are required for your location. This will help you avoid delays and ensure your project meets both legal and environmental requirements.
When do I need a permit?
Building, enlarging or modifying a dam without approval isn’t just risky - it’s illegal.
Get your Water Affecting Activity permit before any dam works begin. It’s the law and helps keep water use fair, sustainable and secure for everyone’s future.
Why is dam construction regulated?
Water is life for our farms, our communities and the environment around us. Every creek and river in the region supports plants, animals and people who rely on it every day. Changing how water flows can affect the health of these waterways, the wildlife that live there and the livelihoods of people downstream.
Building or enlarging a dam can impact both water users and the environment. Careful planning and clear rules help make sure we balance today’s needs with those of the future.
Rules around dam development help protect:
- the water available to people and farms downstream
- the flows that plants and animals in creeks rely on
- creek banks and riverbeds from erosion and silt build-up
- soils and waterways from rising salinity
This approach ensures water is shared fairly and that our rivers and creeks remain healthy for generations to come.
Current ban on dams in the Mount Lofty Ranges
Due to the high number of existing dams and the need to protect water-dependent ecosystems, most applications for new or enlarged dams in the Mount Lofty Ranges are currently not being approved.
The allocation of new water to allow for new or larger dam storages is reserved by the Minister until it is clear that environmental water needs can be met at a low level of risk. Before beginning your application speak to our water resources team to see if these restrictions apply to your location.
