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Track water storage, capacity and historical trends for major reservoirs in New South Wales, Victoria, Queensland and beyond.

57.7% National average
303 Dams tracked
87,729 GL Total capacity
04 Jun 2026 Last Updated
Mary Barrage Water Level

Mary Barrage Water Level

Queensland · Mary River
Reviewed by Water Resources Analyst
Hydrological Summary: Mary Barrage currently stores 100% of its total 12 GL capacity. Located in QLD and operated by SunWater, it is a critical water source for regional supply and irrigation.
Data officially sourced and updated from Queensland water authorities. Last dataset update: 2026-05-01 00:00:00
Current Storage Level 100%
Total Capacity
12 GL
Status
Normal / Safe
Operator
SunWater
Last Updated
01 May 2026
Live Weather
21°C Clear sky
Rain: 0mm | Hum: 41%

Water Level Analysis

Mary Barrage is currently operating near maximum storage limits. With current readings at 100%, the reservoir holds a robust 12 GL. Such elevated levels ensure uninterrupted supply for the surrounding catchments.

Catchment & Hydrological Impact

Fed primarily by the Mary River, this reservoir plays a critical role in the North East Coast drainage division. Hydrological health in this specific drainage basin is vital for downstream ecosystems. Catchment dynamics in the North East Coast are deeply influenced by the retention capacity of Mary Barrage.

Agricultural & Economic Significance

Agriculture in the surrounding areas of Queensland depends heavily on the water security provided by Mary Barrage. The local economy, heavily rooted in agriculture, fluctuates in tandem with the health of this reservoir. Sustainable water management here ensures that both crops and livestock can survive prolonged dry spells.

Ecological & Recreational Context

Ecologically, the reservoir and its immediate wetlands serve as a crucial habitat for native Australian wildlife. When capacity allows, Mary Barrage becomes a hub for regional tourism and water sports. Authorities must constantly balance the need for human water consumption with the ecological necessity of maintaining healthy river systems downstream.

Current Weather & Evaporation Impact

The weather around the catchment is currently recording 21°C. With 0mm of recent rainfall and clear sky skies, the catchment is relatively dry today.

Future Outlook & Monitoring

The Bureau of Meteorology's climate outlooks will play a pivotal role in predicting the future inflows for this catchment. Continuous telemetry and advanced hydrological modeling are employed to forecast storage changes. Resilience against extreme weather events remains the ultimate goal for the managers of this critical infrastructure.

Location Map

Frequently Asked Questions

What is the current water level of Mary Barrage?
As of the latest official reading, the water level at Mary Barrage is at 100% of its total capacity.
Is Mary Barrage currently full?
Yes, Mary Barrage is virtually full at 100%.
What is the maximum water capacity of Mary Barrage?
When completely full (100%), Mary Barrage can hold up to 12 Gigalitres (GL) of water.
Where is Mary Barrage located?
This reservoir is a critical water storage facility located in the state of Queensland, Australia.
How does the water level at Mary Barrage affect local agriculture?
Water levels dictate the irrigation allocations for surrounding farmlands. A healthy level of 100% ensures that local farmers have the necessary water security for their seasonal crops and livestock.
Who manages the data for Mary Barrage?
The data is sourced from official government authorities including the Bureau of Meteorology (BOM) and specific state water utilities.

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