How would a temporary weir help secure South Australias water supply?
A temporary weir would create a physical barrier between the Murray River and the Lower Lakes, creating a weir pool and raising the water level around the SA Water pumps that supply South Australia’s water. It would also prevent saline and potentially acidic water in the Lower Lakes, caused by low water flows and the presence of acid sulfate soils, from flowing upstream towards the source of the state’s drinking water. Building a temporary weir is not the preferred option for the South Australian Government but there may be no other option available to secure South Australia’s water supply.
