Towamba River

The Towamba River is an open mature wave dominated barrier estuary[3] or perennial river,[1] located in the South Coast region of New South Wales, Australia.

Towamba River
Kiah River[1]
Location
CountryAustralia
StateNew South Wales
RegionSouth Eastern Highlands (IBRA), South Coast
MunicipalityBega Valley
Physical characteristics
SourceSouth Coast Range, Great Dividing Range
 • locationnear Coolangubra Mountain
 • elevation533 m (1,749 ft)
MouthTasman Sea, South Pacific Ocean
 • location
Nullica Bay, Twofold Bay
Length86 km (53 mi)
Basin size1,026 km2 (396 sq mi)
Depth 
 • average1.1 m (3 ft 7 in)
Basin features
Tributaries 
 • leftBack Creek (Bega Valley, New South Wales), New Station Creek, Mataganah Creek, Stony Creek (Towamba River), Jingo Creek
 • rightBasin Creek, Reedy Creek (Bega Valley, New South Wales), Wog Wog River, Pericoe Creek, Camping Ground Creek, Stanleys Creek, Shelleys Creek
[2][3][1]

Course and features

The Towamba River rises near Coolangubra Mountain, below Mount Marshall on the eastern slopes of the South Coast Range, part of the Great Dividing Range, approximately 9 kilometres (5.6 mi) north of Coolangubra Mountain. The river flows generally southeast and then northeast, joined by twelve tributaries including the Mataganah Creek and Wog Wog River, before reaching its mouth, emptying into Nullica Bay, within Twofold Bay, and spilling into the Tasman Sea of the South Pacific Ocean, east of Boydtown.[1] The river descends 533 metres (1,749 ft) over its 86 kilometres (53 mi) course.[2]

The catchment area of the river is 1,026 square kilometres (396 sq mi) with a volume of 2,050 megalitres (72×10^6 cu ft) over a surface area of 2.0 square kilometres (0.77 sq mi), at an average depth of 1.1 metres (3 ft 7 in).[4]

At the locality of Kiah, the Princes Highway crosses the Towamba River.

The river flows through extensive parts of the South East Forest National Park in its upper reaches. In its lower reaches, the river forms the northern boundary of Mount Imlay National Park.

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See also

References
  1. "Towamba River". Geographical Names Register (GNR) of NSW. Geographical Names Board of New South Wales. Retrieved 1 June 2013.
  2. "Map of Towamba River, NSW". Bonzle Digital Atlas of Australia. Retrieved 1 June 2013.
  3. Roy, P. S; Williams, R. J; Jones, A. R; Yassini, I; et al. (2001). "Structure and Function of South-east Australian Estuaries". Estuarine, Coastal and Shelf Science. 53: 351–384. doi:10.1006/ecss.2001.0796.
  4. "Towamba River". Coastal and floodplain management: Coastal zone management: Estuaries of NSW. NSW Environment and Heritage. 27 April 2012. Retrieved 1 June 2013.

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