Cascade River (Tasmania)

The Cascade River, part of the Ringarooma River catchment, is a perennial river located in the north-east region of Tasmania, Australia.

Cascade
Location of the Cascade River mouth
in Tasmania
Location
CountryAustralia
StateTasmania
RegionNorth-east
Physical characteristics
Source 
 • locationbelow Bells Hill
 • coordinates41°14′55″S 147°51′28″E
 • elevation515 m (1,690 ft)
MouthRingarooma River
 • location
Derby
 • coordinates
41°08′57″S 147°48′18″E
 • elevation
148 m (486 ft)
Length10 km (6.2 mi)
Basin features
River systemRingarooma River catchment
[1]

Location and features

The river rises below Bells Hill and flows generally north by west, through the Cascade Dam, and reaches its mouth near Derby where it merges with the Ringarooma River. The river descends 367 metres (1,204 ft) over its 10-kilometre (6.2 mi) course.[1]

The river flooded in April 1929, following unusually heavy rains in northern Tasmania.[2] After rainfall of 125 millimetres (4.9 in) in ninety minutes,[3] the Briseis Dam gave way upstream of Derby, causing a torrent of water to rush down the narrow gorge of the Cascade River. At the time, the flood was the worst in Tasmanian history, lasting several days. Thousands of buildings were damaged and the death toll is variously reported to be between 14 and 22.[4] After the 1929 Briseis Dam Disaster, a dam across the Cascade River was rebuilt in 1936 as the 49-hectare (120-acre) Cascade Dam.[5]

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See also

References
  1. "Map of Cascade River, TAS". Bonzle Digital Atlas of Australia. 2015. Retrieved 30 June 2015.
  2. Bureau of Meteorology. Northern Tasmania, April 1929
  3. Beswick, John (2006). "Briseis Dam Disaster". The Companion to Tasmian History. Centre for Tasmanian Historical Studies. Retrieved 22 February 2013.
  4. Stephens, Phil and Matt. "The Flood of 1929". Launceston Historical Society Inc. Retrieved 22 February 2013.
  5. Cole, Bruce (2006). "Dams". The Companion to Tasmanian History. Centre for Tasmanian Historical Studies. Retrieved 22 February 2013.


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