Management of Menindee Lakes 2011-2012 – Issue 8. 20 April 2012


The flood peak in the Darling River is currently entering the Menindee Lakes. Inflows of 64,000 megalitres per day (ML/d) have been recently calculated and inflows of over 50,000 ML/d day are expected to continue over the weekend before beginning to fall. Airspace in the lakes is being used to minimise the flood impact around the  Menindee township and downstream. Upstream at Wilcannia the river is falling slowly and no further rises are anticipated for this event.

This paper, and updates to follow, describes current flow conditions and operations, as well as information on what
can be expected through April and May as the flood waters pass through the Darling River system.
Residents and authorities are reminded to check with the NSW Office of Water in Buronga on the required
approvals before undertaking any earthworks to protect infrastructure or crops.

Management of Menindee Lakes 2011-2012 Issue 7 – 5 April 2012


The flood peak in the Darling River is now approaching Wilcannia. Upstream at Tilpa the river level is falling and no
further rises are anticipated in this event. Downstream at Menindee, high inflows to the lakes system are expected
throughout April and into May, however, maximum outflows will be limited to current levels. The NSW Office of
Water and State Water Corporation are continuing to manage operations at Menindee Lakes in anticipation of the
forecast inflows.
This information paper updates current flow conditions and operations, as well as provides information on what can
be expected through April and May as the flood waters pass through the Darling River system.
In short, residents along the Darling River, from downstream of Tilpa to Burtundy, can expect an extended period of
high flow and widespread rural inundation, similar to events of 1971, 1990 and 1998.
Residents and authorities are reminded to check with the NSW Office of Water in Buronga, approvals that
might be necessary before undertaking any earthworks to protect infrastructure or crops.

River Operations
Darling River Flows and Menindee Storage Volume
The flow in the Darling River main channel at Wilcannia is currently at 39,000 megalitres per day and the flow in the
Talyawalka Creek is over 50,000 megalitres per day. This combined flow is expected to approach a maximum of
about 100,000 megalitres per day over the next few days causing major flooding. This is slightly lower than the
early forecasts but comfortably within the range of planning expectations.
Downstream at Menindee, releases from the lakes system have been made in preparation of the anticipated
significant inflows. The lakes are currently 82 percent full and can hold a further 600,000 megalitres under
surcharge conditions. A large proportion of this available airspace will be used to manage forecast inflows of
between 60,000 and 70,000 megalitres per day during April.
The main weir gate has been re-positioned in the water to limit outflows (measured at Weir 32) to a maximum of
35,000 megalitres per day, making town flooding and conditions immediately downstream of Menindee no more
severe than what is currently being experienced. This will also cause lake levels to rise throughout April and May.
The NSW Office of Water will aim to begin reducing outflows from the lakes as soon as possible to allow water
levels to fall and alleviate flooding in the Menindee town area and downstream. However this is not expected until
May. Minimising outflows will also ensure that the lakes are full at the end of this flood event to provide maximum
resource availability into the future.
Lower Darling River Flows
Downstream flooding could be similar to that experienced during the 1998 flood which had a comparable peak flow
at Bourke of 230,000 megalitres per day (13.78m gauge height). Menindee releases to the Lower Darling in that
event reached 46,500 ML per day through Weir 32 (7.45m gauge height or 10.0m at the Menindee Town gauge).
The targeted peak flow for this 2012 event is 35,000 megalitres per day through Weir 32 and with flows from the
Talyawalka, combined flows in the Lower Darling immediately downstream of the Menindee Lakes will be as high
as 50,000 megalitres per day. Historically, flows of this size, generally flow evenly to the Lower Darling and the
Great Anabranch.
As far as possible the NSW Office of Water will reduce lake outflows at the time of peak Talyawalka inflows below
Weir 32 to minimise the influence of the Talyawalka on the Lower Darling. If that can be achieved then a flow pulse
of 22,000 - 24,000 megalitres per day in the Lower Darling will not be experienced but rather steady flow conditions
of around 18,000 to 20,000 megalitres per day produced by the Menindee outflows for the past few weeks, will be
Water levels in the Lower Darling River at Pooncarie and Burtundy are both rising very slowly. The NSW Office of
Water will aim to keep peak flow in the Lower Darling below that of the 1998 event, and no more than about 24,000
ML per day (7.7m gauge height) at Pooncarie and 22,000 ML per day (7.7m gauge height) at Burtundy.
Great Darling Anabranch Flows
Flow in the Lower Darling at the Great Anabranch effluent has been relatively steady throughout March at around
18,000 megalitres per day, commensurate with the steady flows through Weir 32. In the Anabranch at Wycot the
flow gradually rose through March to reach 13,000 megalitres per day and some 4.2 metres. At the peak of flow,
expected in late April/May, levels are not expected to exceed 5.2 metres. A few thousand megalitres per day is now
flowing in the lower reaches of the Anabranch and joining the Murray River. It is anticipated that this full
connectivity through the Anabranch system will last at least through May, with significant flow volumes expected to
reach the Murray River.
Combined Murray and Murrumbidgee River Flows
The flood peak in the Murrumbidgee River is current downstream of Hay where the river is now falling from 12.9
metres. Peak flow of around 40,000 megalitres per day is expected at Balranald next week. This water will then
enter the Murray River and produce flows at Euston Weir of up to 60,000 megalitres per day from mid April.
It is expected that the Murray peak flow will pass Wentworth in mid to late April with the Darling River contributing
steadily flows of around 18,000 to 22,000 megalitres per day during this period. Flows from the Great Darling
Anabranch will be much longer in arriving at the Murray and have minimal impact on peak flows.
It is expected that high flows to South Australia will persist from mid-late April to early

Daily Rainfall at Charleville Office June 2011 to January 2012

Daily Rainfall at Charleville Office June 2011 to January 2012
About the image
Structure tag: 
Rainfall and Water Flows

Storytelling Competition: Rack Off Rabbits!


For more information click here

Cluster fence expected to be completed by Christmas


In May 2015, Minister Joyce announced a proposed allocation of $10 million to add to the Queensland Government’s ongoing support for cluster fencing. The money was predominately for the sheep regions of south and central western Queensland and was warmly welcomed.
In June this year, the Minister agreed with a proposed model of distribution for the funds which was increased by $6 million from the Queensland State Government.
“South West NRM is proud of how quickly we have delivered the rollout of this project and put the money into fences” said South West NRM Chair, Mark O’Brien. He said this after inspecting the fencing works and seeing the efforts of the Wellwater Cluster, which has been funded by this money.
Cluster members, Scott Sargood and Allan Cann (pictured) joined Mark for the inspection and reported a significant portion of the fence is now up and the full job is expected to be completed by Christmas – this has been in spite of some very welcome rain in the area.
“A very speedy and positive outcome thanks to great collaboration between the cluster and Jon Grant, the South West NRM CAM Phase 2 manager”, said Mr. O’Brien.

Cluster picture.jpg

Cluster fence evaluation

Abstract or description: 

The Department of Agriculture and Fisheries (DAF) is evaluating the cost-benefits of cluster fences in order to advise future investment. Benefits are anticipated as producers get on top of their pest problems, pastures respond to reduced grazing by pests and livestock production/profitability improves due to less predation and greater carrying capacity. In November 2013, DAF commenced monitoring vegetation and wildlife population trends inside and outside the Morven cluster fence. Although the fence was not completely finished until early 2015, sections of the fence had been built or were under construction much earlier.

Structure tag: 
News & Events
NRM Topic: 
Pest Management
File Attachments

Mulga Graze Handouts - Wallal Field Day


Wallal Field day and Soil Health Workshop

Welcome to the Wallal Field day and Soil Health Workshop
Can I please remind you if you haven’t already to complete the registration form down the back.
Could I also please ask you to complete the evaluation form attached to this handout.
If you would be interested in collecting and sending some soil samples away to be test can you please complete the attached Expression of Interest form and return it. Please be aware that I am unsure of the total cost or the level of subsidy which SW NRM are able to offer. If you register you will receive more information as soon as it is available.
To get to Wallal you need to go down the Cunnamulla Road, it is 22km from the Charleville railway crossing to the Wallal Turn off. The turn off is on the WESTERN side of the road and has grid with white gates. If you get to the Angellala bridge turn around, you have gone too far.
The house is approximately 2km off the road, just follow the road in there are no turn offs

Media Contact: 

Wild Dog Bulletin: Can recreational shooters control broad scale wild dog populations?


Hello All,
Landholders in pastoral areas are often contacted by urban-based recreational shooters who are offering to control wild dogs on their properties.

Hello All,


Landholders in pastoral areas are often contacted by urban-based recreational shooters who are offering to control wild dogs on their properties.


So, leaving aside farm security, weed spread, etc - Does recreational hunting control wild dog populations?


The research and recommendations say 'No' - e.g.


This is not to say a number of dogs will not be eliminated by -


·         Professional macropod harvesters

·         Landholders opportunistically shooting dogs

·         Doggers targeting specific trap-shy dogs


However these actions still need to be reinforced by integrating other control tools such as baiting and/or trapping to effectively control numbers.






John Cuskelly

Biosecurity Officer

Biosecurity Queensland


Ph: 4669 0814  Mob: 0427 063 218


PO Box 993 Dalby Q 4405

New smartphone app for growers and producers

Abstract or description: 

Funded by groups like the GRDC and MLA and available for free, the 'CliMate' app shows graphs comparing rainfall from past years, and gives growers a probability of how much rain will fall in the future.

Structure tag: 
News & Events
External Link
NRM Topic: 
Climate and carbon
Grazing and Production

Upcoming workshops


Addressing the important issues of our region

Day workshops 10am - 3pm. Catering provided. FREE OF CHARGE.

Workshop locations


• Charleville - Wednesday 22 May 2013

AgForce Meeting Room

• Quilpie - Thursday 23 May 2013

Quilpie Club

• Bollon - Monday 27 May 2013
Bollon Tennis Club

• Cunnamulla - Tuesday 28 May 2013
Cunnamulla Bowls Club

• Eulo - Wednesday 29 May 2013

Eulo Hall

• Thargomindah - Thursday 30 May 2013

Bulloo Shire Supper Room

Workshops supported by Charleville Police District.

Water Resource Planning:
Review & Overview
This is a once in a decade opportunity to have your say on water issues that affect

The Department of Natural Resources and Mines is reviewing and updating the
Water Resource Plan for the Warrego, Paroo, Bulloo and Nebine catchments.

• Trading of water entitlements
• Sustainable diversion limits
• Landscape health
• Environmental and economic health
• Access to water
• Improving security of urban water supplies

Life Saving Emergency Services
With over 800 rural properties and 12 townships in the South West NRM
region, the time is ripe for developing an improved model of regional
emergency information management to enable early warning as well as
evacuation control and rescue strategies in cases of fire, flood or other
emergency events.

• Service providers are invited to share information and discuss their needs/thoughts
and technological applications that would assist with the provision of safer and more
efficient emergency services.
• Town and property residents - tell us what information you need in an emergency
situation, how that information should be delivered and what format suits your needs.

RSVP to South West NRM Ltd on (07) 4656 8500

Addressing the imporant
issues of our region - continued.

South West NRM: the next 5 years
Help South West NRM shape its next 5 years’ priorities, programmes
and services. How can we improve our performance? Are there better
ways we can protect our environment, our people, our livelihoods?

• Natural resource management is fundamentally about people. Successful
managenent of the broad spectrum of environmental assets is ultimately
determined by the level of community involvement and the adoption of
ecologically sustainable practices across the community.
• Discuss funding opportunities, programmes, government requirements.

Day workshops will run from 10am - 3pm. All workshops are free of charge.

For catering purposes please RSVP to South West NRM, Charleville on (07) 4656 8500 or to
your local South West NRM branch:

Bollon: (07) 4656 8542

Cunnamulla: (07) 4656 8540

Quilpie: (07) 4656 8541

Thargomindah: (07) 4656 8543

Limited spots available. RSVP to South West NRM Ltd on (07) 4656 8500