Tidal river

A tidal river is a river whose flow and level are influenced by tides. A section of a larger river affected by the tides is a tidal reach, although it may sometimes be considered a tidal river if it has been given a separate name. The Brisbane River, which flows into the Pacific Ocean from the east coast of Australia, is also a tidal river.

Generally, tidal rivers are short rivers with relatively low discharge rates but high overall discharge; generally this implies a shallow river with a large coastal mouth. In some cases, high tides impound downstream flowing freshwater, reversing the flow and increasing the water level of the lower section of river, forming large estuaries. High tides can be noticed as far as 100 kilometres (62 mi) upstream. The Coquille River is one such stream where this effect can be noticed.

See also

Tidal river (disambiguation)

Tidal River may refer to:

Tidal River (Victoria)

The Tidal River is a perennial river of the West Gippsland catchment, located in the Wilsons Promontory region of the Australian state of Victoria. A permanent camping ground that takes its name from the river, which flows past the camping ground to the north, is also called Tidal River.

Location and features

The Tidal River rises below Mount Latrobe, part of the Wilson Range within the Wilsons Promontory National Park, and flows generally west by south before reaching its mouth within Norman Bay at the seasonal settlement of Tidal River, and emptying into Bass Strait. The river descends 367 metres (1,204 ft) over its 6-kilometre (3.7 mi) course.

The colour of the Tidal River ranges from a deep-yellow (in shallower areas) to a dark-purple and almost black (in its deeper depths). This discolouration is due to the large number of tea trees present in the area. The trees dye the river, making it appear like black tea (hence the name 'tea tree'). Even though the water is very clean and clear, it is impossible to see to the bottom in the deep areas. Few water creatures inhabit the river.