Dam construction and development
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 than 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.
The development of a new dam can impact existing water users and the environment and must be managed in a way that balances existing and future needs. Regulating the development of dams means that we can manage and prevent:
- reduced flows to downstream users
- reduced flows or changes to the timing of flows to ecosystems that depend on a certain flow regime
- erosion and sedimentation, and
- increased salinity.
This approach is needed to ensure water is shared equitably between all users and the environment.
Permit requirements
Before constructing, modifying, repairing or removing a dam, you will need approval under either the Landscape South Australia Act 2019 via the Hills and Fleurieu Landscape Board or under the Planning, Development and Infrastructure Act 2016 via your local council.
The landscape boards and the Department for Environment and Water take compliance with water laws seriously. Action will be taken if dams are built or enlarged without the necessary permits.
A landholder can be compelled to rectify unauthorised activity at their own cost, and failure to comply can involve a penalty of up to $35,000 for an individual or $70,000 for a body corporate (under the Landscape South Australia Act 2019).
Want to know more about water affecting activity permits?
Learn what requires a permit, how to apply, and what you need to know to stay compliant here