Flows in the River Murray system for February 2024

Flows in the River Murray system vary widely depending on a range of factors, including rainfall, inflows, evaporation, and demands for water from all users.

Published: 13 March 2024

At any given time, water flowing through the river is destined for various uses, including irrigation, industry, communities, the environment, and meeting South Australia’s flow entitlement.

The exact mix of these flow components is determined by a number of factors including demand and water availability.

Each month we provide an update showing flows in the River Murray system including the total volume of water flowing for consumptive use and to care for the environment. The update also outlines the intended environmental outcomes.

Information in the figure above is for the month of February 2024 and may not include recent rainfall or delivery of water for the environment in the River Murray system. Information in this figure is an average estimate over the past month and formal accounts from Basin state governments may vary. Water for the environment in the figure above represents water that is held by environmental water holders, through entitlements. Other water that flows through the river can also achieve environmental outcomes.

River flow information 

The February flow to South Australia included water for South Australia’s entitlement, traded volumes, unregulated flow and water for the environment. Water for the environment at the South Australian border throughout winter-spring comes primarily from return flows from upstream environmental water use. From mid-summer into autumn there is generally less water for the environment flowing through the River Murray system. 

For the latest information on water for the environment see the River Murray weekly report.

Intended environmental outcomes 

Water for the environment takes time to move through the system. Water from past watering events is still moving through the River Murray as return flows. Environmental water holders can also use water for the environment by extracting allocations directly from the river. These allocations are often used for small-scale watering events rather than having water delivered from a storage. 

Location Return flows used at site Intended environmental outcomes
Murrumbidgee N/A
  • Elevated baseflows to support native fish habitat
Edward/Kolety–Wakool River system No
  • Improve water quality after natural inundation of floodplain forest 
  • Maintain and improve large-bodied native fish populations (such as Murray cod)
Gunbower Creek No
  • Maintain habitat and food resources for native fish and support breeding and larval survival
Lower Broken Creek N/A
  • Maintain oxygen levels suitable for aquatic animals 
  • Provide native fish passage through fish ladders 
  • Reduce stagnation in weir pools 
  • Provide habitat for platypus, fish and turtles
Goulburn River N/A
  • Elevated baseflows to provide habitat for native fish, water bugs, platypus and turtles 
Loddon River N/A
  • Increase small and large bodied fish populations  
  • Maintain the condition of streamside and instream vegetation  
  • Maintain water quality to support aquatic animals 
Lower Murray Yes
  • Maintain a mixed water column through summer to minimise the risk of thermal stratification and algal blooms
Lower Darling No
  • Elevated baseflows to provide habitat for native fish and mitigate poor water quality 
Lower Lakes, Coorong and Murray Mouth Yes
  • Decrease water levels in the Lower Lakes to support aquatic vegetation growth and diversity
  • Provide barrage fishway flows to support movement of native fish 
  • Salt export via the Murray Mouth 
  • Improve water quality in the Coorong to support native fish, plants, invertebrates and waterbirds 
  • Recruitment of estuarine fish such as black bream