Over the last 20 or so years, the average flow into the Murray River from the major tributaries were:
Mitta Mitta River
The statistics change significantly if you include older records but these are likely less meaningful than the
recent trends. Note that these are from gauges close to the Murray River and do not reflect the contribution that
each river makes to the entire Murray Darling Basin (MDB) as a whole.
Swampy Plain River, NSW
Head: Lake CootapatambaElevation2,120 m Mouth: Bringenbrong BridgeElevation263 m Length65.2 kmDrop1,857 mSlope29.95‰
Feed from Snowy Mountains Scheme, much of the Summer and Autumn flows originate here.
Grade III run from Alpine Way Bridge to Waterfall Farm with one portage.
It is 14.4 km from the spillway at Khancoban to Bringenbrong Bridge
if you stay on the main flow and take Indi Backwater. Staying on Swampy Plain River
would be 1.1 km longer and harder if it is even flowing.
Tooma River, NSW
Head: Mt JagungalElevation1,615 m Mouth: TintaldraElevation238 m Length84.4 kmDrop1,377 mSlope18.61‰
Part of the Snowy Mountains Scheme, some water is redirected to the Tumut River
that feeds into the Murrumbidgee River. The source of both the Tumut and Tooma rivers
are both found in close proximity on the Toolong Ranges.
Mitta Mitta River, VIC
Aboriginal: Mida-modoenga (where reeds grow)
Head: Anglers RestElevation694 m Mouth: Mitta JunctionElevation180 m Length233.5 kmDrop514 mSlope2.52‰ Catchment: 10,062 sq km (~0.9% MDB)
The Mitta Mitta basin in the Victorian Alps makes up just 1% of the total MDB catchment area, yet
it supplies ~10% of the water flowing into the Murray Darling Basin (MDB).
Up to Grade IV with some ADF restricted sections.
Kiewa River, VIC
Aboriginal: Cy-a-nun-a wher-ra (sweet water)
Branch Confluence: Mt BeautyElevation323 m Mouth: AlburyElevation152 m Length116.7 kmDrop171 mSlope1.17‰ Total length: Length153.2 km(west branch) Catchment: 1,750 sq km (~0.2% MDB)
Small basin making up just 0.2% of the total MDB flow (689 GL) but important for a number endangered fish species and it also
has Victoria's largest hydroelectric scheme on the river.
The East Branch starts near Mt Bogong
and is Length16.2 km long with a Drop337 m drop.
The West Branch starts near Mt Jim
and is Length36.5 km long with a Drop990 m drop.
Ovens River, VIC
Head: HarrietvilleElevation497 m Mouth: BundalongElevation126 m Length217.7 kmDrop371 mSlope1.94‰ Catchment: 7,778 sq km (~0.7% MDB)
King River is a major tributary that joins at Wangaratta. Combined they contribute 6% of the MDB water (1,775 GL)
Both rivers split into two major branches each and Ovens East Branch is formed by the confluence of Baldy and Mt Smythe creeks.
Goulburn River, VIC
Head: Corn HillElevation1,067 m Mouth: EchucaElevation99 m Length563.9 kmDrop968 mSlope1.48‰ Catchment: 23,916 sq km (~2% MDB)
The longest river in Victoria that also has the highest discharge and flow of any river in Victoria.
Some Grade II runs in the Victorian Alps but big flat water near the Murray.
The Broken River is one of the significant tributaries of the Goulburn River.
Campaspe River, VIC
Head: BullengarookElevation722 m Mouth: EchucaElevation96 m Length262.0 kmDrop626 mSlope2.70‰ Catchment: 4,179 sq km (~4% MDB)
The smallest of the three rivers that make up the meeting of the waters (the literal translation of Echuca).
Loddon River, VIC
Head: TrenthamElevation779 m Mouth: Little Murray RiverElevation68 m Length444.5 kmDrop711 mSlope1.81‰ Catchment: 15,320 sq km (~2.3% MDB)
Flows into the Victorian Little Murray River Anabranch that merges with the Murray River at Swan Hill. Much
of the catchment ends up in the Avoca River (313.1 km) that likely doesn't make it to the Murray River.
Wakool River, NSW
Head: DeniliquinElevation87 m Mouth: Wakool JunctionElevation60 m Length392.8 kmDrop27 mSlope0.07‰
Much of the water will be from the Edward River anabranch that helps take water past the Barmah Choke.