Tumut Doomut[1]
Tumut River, nearTumut,New South Wales
Location of the Tumut Rivermouth inNew South Wales
Etymology	Aboriginal: derived fromDoomut orDoomat; meaning camping by the river[2]
Native name	Doomut (Wiradjuri) Bewuck[1]
Location
Country	Australia
State	New South Wales
Region	Australian Alps (IBRA),South Eastern Highlands (IBRA),Snowy Mountains,South West Slopes
Municipalities	Tumut,Gundagai
Physical characteristics
Source	Toolong Range,Snowy Mountains
• location	west ofMount Jagungal
• coordinates	36°5′18″S148°23′5″E / 36.08833°S 148.38472°E /-36.08833; 148.38472
• elevation	1,430 m (4,690 ft)
Mouth	confluence with theMurrumbidgee River
• location	nearGundagai
• coordinates	35°1′18″S148°10′51″E / 35.02167°S 148.18083°E /-35.02167; 148.18083
• elevation	220 m (720 ft)
Length	182 km (113 mi)
Basin size	4,000 km2 (1,500 sq mi)
Basin features
River system	Murrumbidgee catchment, Murray–Darling basin
Tributaries
• left	Long Creek (Tumut), Buddong Creek, Gilmore Creek
• right	Bogong Creek,Doubtful Creek,Happy Jacks Creek, Jounama Creek, McGregors Creek, Blowering Creek,Goobarragandra River, Brungle Creek
Dams	Happy Jacks,Tumut Pond,Tumut Two,Talbingo,Jounama,Blowering
[3][4]

TheTumut River (/ˈtjuːmət/),^[5] aperennial stream^[1] that is part of theMurrumbidgee catchment within theMurray–Darling basin, is located in theSnowy Mountains andSouth West Slopes districts ofNew South Wales, Australia.

The Tumut River rises on the northern face ofMount Jagungal in theSnowy Mountains at 1,430 metres (4,690 ft) and flows generally north by west, joined by twelvetributaries including theDoubtful Creek,Happy Jacks Creek andGoobarragandra River before meeting itsconfluence with theMurrumbidgee River, atDarbalara near the town ofGundagai; descending 1,210 metres (3,970 ft) over its 182-kilometre (113 mi)course.^[3][6]

BetweenCabramurra andTumut, the natural course of the Tumut River has been altered as a result of the construction of theSnowy Mountains Scheme. A series of sixteen majordams and sevenhydro-electricpower stations were constructed between 1949 and 1974 to harness the flow of the Tumut andSnowy rivers. The Tumut River is impounded by six dams, located atHappy Jacks Dam,Tumut Pond Dam,Tumut Two Dam,Talbingo Dam,Jounama Dam, andBlowering Dam. Four hydro-power stations are located adjacent to the river flow. Although a relatively short river, the natural flow of the Tumut River is quite high,^{[citation needed]} as it drains the snowmelt and other runoff from a large proportion of the northern Snowy Mountains. The natural flow of the river is amplified by water transferred from theTooma River andLake Eucumbene by the Snowy Mountains Scheme.

The river is crossed by theheritage-listedJunction Bridge at Tumut.^[7]

The word Tumut is derived from theWiradjuri worddoomut ordoomat, meaning camping by the river.^[2][8]

The Tumut River has been subject to considerable debate and lobbying on environmental grounds. The Tumut River has been widely documented^[where?] as suffering from the effects of the un-natural flow regime resulting from the creation of the Snowy Mountain Scheme and the irrigation demand downstream of the Tumut River. Environmental damage attributed to the management of the Tumut River by theGovernment of New South Wales includes;

• Erosion of river banks – quoted as approximating 2 hectares (4.9 acres) of lost land per 1 kilometre (0.62 mi) of river frontage.^[9][10]
• Waterlogging (souring) of low-lying land along the river.
• Isolation of historicalanabranches of the river (e.g. Holt's anabranch which is now regularly cut off at low flows.) The historic village of Brungle has been the subject of considerable media coverage on both Prime and WIN TV regarding river flows and water quality.
• Thermal pollution (low water temperatures) resulting from the "bottom of the dam" outlet of Blowering Dam.^[11]
• Loss of flora and fauna (e.g.platypuses) from the extreme changes in water level from high irrigation flows to winter flows of less than 500 megalitres (18×10^⁶ cu ft) per day.^[12]
• Rock facing of river banks to attempt to control erosion caused by high irrigation flows.

The Tumut River has been a popular destination for a variety of sport and leisure activities including;

• Canoeing/Kayaking – there are many excellent opportunities for canoeing downstream of Blowering Dam. Canoeing activities are often limited to higher flows as winter low flows are very difficult to paddle. Paddling is very pleasant at discharges above 2,000 megalitres (71×10^⁶ cu ft) per day at Blowering Dam. The Tumut Valley Canoe Club are regular paddlers of the Tumut River. They meet at 5pm on Wednesday during Summer at their clubhouse which is next to the Riverglade caravan park Tumut.
• Fishing – Fishing on the Tumut River is now limited to cold water species e.g. introduced trout species. The low temperatures of the river due to the bottom of the dam releases from Blowering Dam have virtually eliminated native fish species.

• List of rivers of Australia
• List of rivers of New South Wales (L–Z)
• Rivers of New South Wales
• Round Mountain
• Tooma River

• "Murrumbidgee and Lake George catchments".Office of Environment and Heritage (map).Government of New South Wales.
• Bevitt, R.; Erskine, W.; Gillespie, G.; Harriss, J.; Lake, P.; Miners, B.; Varley, I. (May 2009).Expert panel environmental flow assessment of various rivers affected by the Snowy Mountains Scheme. NSW Department of Water and Energy.ISBN 978-0-7347-5656-5.

• Snowy Mountains Scheme
• Rivers of New South Wales
• Rivers in the Riverina
• Tributaries of the Murrumbidgee River

• Pages using gadget WikiMiniAtlas
• Geographic Names Register of NSW not in Wikidata
• CS1 errors: periodical ignored
• CS1 maint: others
• Articles with short description
• Short description matches Wikidata
• Use dmy dates from November 2021
• Use Australian English from January 2013
• All Wikipedia articles written in Australian English
• Articles containing Wiradjuri-language text
• Articles containing undetermined-language text
• Coordinates on Wikidata
• All articles with unsourced statements
• Articles with unsourced statements from January 2013
• Vague or ambiguous geographic scope from January 2013