Latest dam levels

21 Sep 2018
Storage Full Supply Capacity (ML)* Current Capacity (ML) % Full Latest Observation
Grid Twelve 2,197,086 1,682,790 76.6 21/09/2018 06:28AM


The Grid Twelve is made up of the 12 South East Queensland dams which contribute to the water supply system. These dams are Wivenhoe, Somerset, North Pine, Hinze, Baroon Pocket, Leslie Harrison, Ewen Maddock, Cooloolabin, Sideling Creek, Lake Macdonald, Little Nerang and Wappa.

The Grid Twelve % Full is calculated by dividing the combined current capacity of the dams in the group by the combined full supply capacity.

South East Queensland dam storage levels

The following table provides the latest available information about the region's dams.

Dam levels are updated regularly 24 hours a day. Please note, dam levels are based on automated data which has not been verified.

On 21 January 2016, temporary full supply levels were enacted for Somerset Dam and Wivenhoe Dam (part of the Somerset Dam Improvement Project). These equate to storage percentages of approximately 80% for Somerset Dam and 90% for Wivenhoe Dam. These temporary full supply levels will remain in place until current dam improvement works at Somerset Dam are completed. Seqwater will commence flood releases from Wivenhoe and Somerset dams if storage levels exceed the enacted temporary full supply levels as a result of rainfall in the dam catchments.

Click here for updates on gated dam operations and spilling un-gated dams, or sign up for our free Dam Release Notification service to receive alerts by email, SMS or recorded message to landline, as spilling or gated releases occur.

For information about flood levels, contact your local Council. For information about road impacts, contact Transport and Main Roads. For information about river levels, please see the Bureau of Meteorology website.

21 Sep 2018
Storage Full Supply Capacity (ML)* Current Capacity (ML) % Full Latest Observation Comment
Atkinson Dam 30,401 1,637 5.4 21/09/2018 06:00AM
Baroon Pocket Dam 61,000 57,200 93.8 21/09/2018 06:03AM
Bill Gunn Dam 6,947 264 3.8 21/09/2018 06:00AM
Borumba Dam 46,000 44,122 95.9 21/09/2018 06:00AM
Cedar Pocket Dam 735 579 78.9 21/09/2018 06:00AM
Cooloolabin Dam** 8,167 7,345 89.9 21/09/2018 06:00AM
Enoggera Dam 4,567 4,449 97.4 21/09/2018 06:00AM
Ewen Maddock Dam 16,587 14,668 88.4 21/09/2018 06:00AM
Gold Creek Dam 801 728 91.0 21/09/2018 06:28AM
Hinze Dam** 310,730 285,632 91.9 21/09/2018 06:00AM
Lake Clarendon Dam 24,276 46 0.2 21/09/2018 07:00AM
Lake Macdonald 8,018 7,798 97.3 21/09/2018 06:00AM
Lake Manchester Dam 26,217 25,317 96.6 21/09/2018 06:00AM
Leslie Harrison Dam** 13,206 11,674 88.4 21/09/2018 06:00AM
Little Nerang Dam 6,705 5,405 80.6 21/09/2018 06:07AM
Maroon Dam 44,319 41,003 92.5 21/09/2018 07:10AM
Moogerah Dam 83,765 65,721 78.5 21/09/2018 06:23AM
Nindooinbah Dam** 270 205 76.2 21/09/2018 07:16AM
North Pine Dam 214,302 170,460 79.5 21/09/2018 06:00AM
Poona Dam 655 533 81.4 21/09/2018 06:16AM
Sideling Creek Dam** 8,590 8,134 94.7 21/09/2018 06:28AM
Somerset Dam 379,849 291,025 76.6 21/09/2018 06:06AM
Wappa Dam 4,694 4,688 99.9 21/09/2018 06:22AM Dam is spilling
Wivenhoe Dam 1,165,238 818,761 70.3 21/09/2018 06:00AM
Wyaralong Dam 102,883 97,411 94.7 21/09/2018 06:01AM

*Full Supply Capacity does not include the flood mitigation storage capacity of Wivenhoe and Somerset dams.

** Please note:

- the capacity of Cooloolabin Dam decreased from 13,820 ML to 8,183 ML on Thursday 10 December 2015
- the capacity of the Hinze Dam increased from 161,073 ML to 310,730 ML on Friday 15 July 2011
- the capacity of Leslie Harrison Dam decreased from 24,868 ML to 13,206 ML on Friday 1 August 2014
- the capacity of Nindooinbah Dam decreased from 322 ML to 270 ML on Saturday 1 March 2014
- the capacity of Sideling Creek Dam decreased from 14,370 ML to 8,590 ML on 24 September 2015.

The current flood storage capacity:

Dam Total Flood Storage
Volume
Percentage of Flood Storage
Volume in Use
Percentage of Flood Storage
Volume Available
Somerset Dam 601,000 ML 0.0% 100.0%
Wivenhoe Dam 2,080,000 ML 0.0% 100.0%

Historical dam storage data

This graphs shows the full supply level of Seqwater dams including drinking water supply and flood water storage. To operate this graph choose up to 4 dams from the right, and then slide the date bars left and right to select dates of interest.