Barmah Choke trade balance

Barmah Choke, Barmah National Park Victoria
Barmah Choke, Barmah National Park, Victoria. Photo by Denise Fowler

Trade from above the Barmah Choke to below the Choke is restricted to protect delivery of water downstream. This means people upstream of the Choke can sell water to buyers downstream of the Choke, but only if the same or greater volume of water has been transferred from downstream to upstream of the Choke first. We will continue to monitor the situation and will lift or adjust the restriction if conditions permit.

Consistent with normal operations, on July 1 2016 (at the start of the new water year), we cleared the balance available for trading from above to below the Choke. This annual adjustment took into account water savings transferred to the Snowy scheme, and resulted in an opening balance of around 26 GL. This was the initial volume available to be traded from above to below the Barmah Choke. More information on the opening balance was made publicly available on 17 June 2016.

More background information about the Snowy adjustment scheme can be found on the NSW Department of Primary Industries website.

From 1 July 2016, the balance will be:

  • increased by allocation trades from below to above the Choke
  • increased by any deliveries against tags established from below to above the Choke
  • decreased by allocation trades from above to below the Choke.

Further information about this legislative requirement can be found in the Murray-Darling Basin Agreement (Schedule D - Permissible Transfers between Trading Zones) Protocol 2010.

Through the millennium drought, the trade restriction was relaxed and trade occurred freely from above to below the Barmah Choke. On Tuesday, 28 October 2014, trade from above the Barmah Choke reverted to the default position and the restriction was actively applied. We issued a water announcement advising the restriction was in place.

Barmah Choke Balance

Barmah Choke trade

How much can I trade? 14018.6 ML*

*The balance shown is the volume of water permitted to be traded from above to below the Choke as of 06:32 am 24 Jun 2017. If the balance is negative, the capacity will be shown as zero opportunity to trade.

The balance is updated whenever the MDBA is consulted regarding a trade across the Choke. Trade applications should continue to be submitted to Basin states.

For more information regarding the Barmah Choke balance please email

Barmah Choke Graph

Recent Barmah Choke Trade Volumes

Date Down to Up (ML) Up to Down (ML) Adjustment (ML) Rejection (ML) Balance (ML)
25-May-2017 1,848.0 1,005.0     5,273.0
26-May-2017 0 200.0     5,073.0
27-May-2017         5,073.0
28-May-2017 300.0       5,373.0
29-May-2017 600.0 798.6     5,174.4
30-May-2017 2,796.2 51.0     7,919.6
31-May-2017 1,004.7 200.0     8,724.3
01-Jun-2017 2,588.4 1,206.1 0.7   10,107.3
02-Jun-2017 802.6 200.0     10,709.9
03-Jun-2017         10,709.9
04-Jun-2017         10,709.9
05-Jun-2017 36.2 54.1     10,692.0
06-Jun-2017 287.0 192.7     10,786.3
07-Jun-2017 148.0 373.9     10,560.4
08-Jun-2017 605.8 945.6     10,220.6
09-Jun-2017 567.6 347.4     10,440.8
10-Jun-2017         10,440.8
11-Jun-2017         10,440.8
12-Jun-2017         10,440.8
13-Jun-2017 692.2 209.4     10,923.6
14-Jun-2017 522.0 470.8     10,974.8
15-Jun-2017 1,014.0 373.0     11,615.8
16-Jun-2017 1,047.2 86.9     12,576.1
17-Jun-2017         12,576.1
18-Jun-2017         12,576.1
19-Jun-2017 784.0 269.0     13,091.1
20-Jun-2017 2,086.8 660.0     14,517.9
21-Jun-2017 645.4 189.0     14,974.3
22-Jun-2017 421.8 488.0     14,908.1
23-Jun-2017 408.6 1,298.1     14,018.6