Dartmouth storage increased above the Full Supply Level (FSL) of 486 m AHD and water began flowing over the spillway on 23rd September 2022. The storage remains above FSL and flow over the spillway is near 5,500 ML/day. Tallandoon is currently below channel capacity (3.4m).
The Bureau of Meteorology (BoM) is currently forecasting widespread rain totals between 50- 100 mm for the Dartmouth catchment on the 8-day rainfall outlook. Inflows to Dartmouth Dam are expected to rise as a result of the forecast rain. As such, the flow over the spillway is also expected to rise over the coming days.
As spillway flows increase, flow at Tallandoon is likely to exceed channel capacity over the coming weekend.
Depending on actual rainfall and inflows, including inflows from tributaries downstream of the dam, it is possible that Tallandoon may rise to minor flood level (4.2 m) in the coming week.
The Bureau of Meteorology is responsible for flood forecasting. If flows approach minor flood level MDBA will no longer produce flow forecasts or flow advice and information should instead be accessed from the Bureau of Meteorology.
If you need assistance, please contact your local SES. Download the Vic Emergency App, and set your flood watch zone.
Summary information about the River Murray system is available in River Murray Weekly reports.
If you are observing bank erosion around key assets on your property, as a result of the higher river flows, please call the North-East Catchment Management Authority. They implement a riparian program in conjunction with the MDBA.
Subscribe to receive flow advice by email.
ENDS