Dam is spilling

Dam is spilling

On 21 July 2025, Seqwater reduced the Full Supply Level for Lake Macdonald Dam to 42% to facilitate construction works on the Lake Macdonald Dam Improvement Project. Additional lowering to 39.1% has since been approved to limit impacts from wet weather events and reduce cofferdam overtopping. This new level will remain in place until the completion of the Lake Macdonald Dam Improvement Project. 

Maroon Dam is an un-gated dam that operates differently from the other un-gated dams. Instead of flowing over the spillway and safely out of the dam when the dam reaches full supply level, we release water from Maroon Dam through cone valves. More information can be found here.

On 28 January 2025, Seqwater enacted a Reduced Full Supply Level for North Pine Dam. The new level equates to a storage percentage of approximately 54% capacity. This new level will remain in place until dam improvement work is completed on North Pine Dam.

On 21 January 2016, temporary full supply levels were enacted for Somerset Dam (80%) and Wivenhoe Dam (90%) as part of the Somerset Dam Improvement Project.

On 6 November 2020, the Department of Regional Development, Manufacturing and Water approved an application by Seqwater to amend our resource operations licences to reduced full supply levels at Somerset Dam and Wivenhoe Dam. These amended levels equate to storage percentages of approximately 80% for Somerset Dam and 90% for Wivenhoe Dam.  

The amended full supply levels will remain in place until current dam improvement works at Somerset Dam are completed. Seqwater will commence flood releases from Wivenhoe Dam and Somerset Dam if storage levels exceed the amended full supply levels as a result of rainfall in the dam catchments.

On 21 January 2016, temporary full supply levels were enacted for Somerset Dam (80%) and Wivenhoe Dam (90%) as part of the Somerset Dam Improvement Project.

On 6 November 2020, the Department of Regional Development, Manufacturing and Water approved an application by Seqwater to amend our resource operations licences to reduced full supply levels at Somerset Dam and Wivenhoe Dam. These amended levels equate to storage percentages of approximately 80% for Somerset Dam and 90% for Wivenhoe Dam.  

The amended full supply levels will remain in place until current dam improvement works at Somerset Dam are completed. Seqwater will commence flood releases from Wivenhoe Dam and Somerset Dam if storage levels exceed the amended full supply levels as a result of rainfall in the dam catchments.