The Rantembe Dam ( si, රංටැබේ වේල්ල) is a
hydroelectric gravity
In physics, gravity () is a fundamental interaction which causes mutual attraction between all things with mass or energy. Gravity is, by far, the weakest of the four fundamental interactions, approximately 1038 times weaker than the str ...
dam
A dam is a barrier that stops or restricts the flow of surface water or underground streams. Reservoirs created by dams not only suppress floods but also provide water for activities such as irrigation, human consumption, industrial use, a ...
at Rantembe, in the
Central Province of
Sri Lanka
Sri Lanka (, ; si, ශ්රී ලංකා, Śrī Laṅkā, translit-std=ISO (); ta, இலங்கை, Ilaṅkai, translit-std=ISO ()), formerly known as Ceylon and officially the Democratic Socialist Republic of Sri Lanka, is an ...
. Construction of the dam began in January 1987, and was completed in April 1990 as scheduled. The dam was constructed by the German 'Joint Venture Randenigala'; a different German joint venture has built the
Randenigala Dam
The Randenigala Dam ( si, රන්දෙනිගල වේල්ල) is a large hydroelectricity, hydroelectric embankment dam, embankment dam at Rantembe, in the Central Province, Sri Lanka, Central Province of Sri Lanka. Construction of the da ...
, further upstream.
Construction of the dam cost approximately , of which 34.7% () was funded by the
Ceylon Electricity Board
The Ceylon Electricity Board - CEB ( si, ලංකා විදුලිබල මණ්ඩලය - ලංවිම, Lankā Vidulibala Mandalaya - Lanwima; ta, இலங்கை மின்சார சபை - இமிச), is the largest el ...
, with the majority of the remainder funded by
Germany
Germany, officially the Federal Republic of Germany (FRG),, is a country in Central Europe. It is the most populous member state of the European Union. Germany lies between the Baltic and North Sea to the north and the Alps to the sou ...
.
Dam, reservoir, and power station
The Rantembe Dam, located just downstream of the
Randenigala Dam
The Randenigala Dam ( si, රන්දෙනිගල වේල්ල) is a large hydroelectricity, hydroelectric embankment dam, embankment dam at Rantembe, in the Central Province, Sri Lanka, Central Province of Sri Lanka. Construction of the da ...
, measures in height, in length, and consists of 4
tainter gate
The Tainter gate is a type of radial arm floodgate used in dams and canal locks to control water flow. It is named for Wisconsin structural engineer Jeremiah Burnham Tainter.
A side view of a Tainter gate resembles a slice of pie with the ...
spillway
A spillway is a structure used to provide the controlled release of water downstream from a dam or levee, typically into the riverbed of the dammed river itself. In the United Kingdom, they may be known as overflow channels. Spillways ensure t ...
s with a combined discharge capacity of .
The dam creates the relatively small Rantembe Reservoir, which has a catchment area of , and a total capacity of .
Water from the reservoir is channelled through the dam through a steel
penstock
A penstock is a sluice or gate or intake structure that controls water flow, or an enclosed pipe that delivers water to hydro turbines and sewerage systems. The term is inherited from the earlier technology of mill ponds and watermills. ...
to power the two
turbines
A turbine ( or ) (from the Greek , ''tyrbē'', or Latin ''turbo'', meaning vortex) is a rotary mechanical device that extracts energy from a fluid flow and converts it into useful work. The work produced by a turbine can be used for generating e ...
. The power station's combined output of 52-megawatts generates annually.
See also
*
List of dams and reservoirs in Sri Lanka
The following page lists most dams in Sri Lanka. Most of these dams are governed by the Mahaweli Authority, while the Ceylon Electricity Board operates dams used for hydroelectric power generation. Hydroelectric dams, including small hydros ac ...
*
List of power stations in Sri Lanka
Sri Lanka's electricity demand is currently met by nine thermal power stations, fifteen large hydroelectric power stations, and fifteen wind farms, with a smaller share from small hydro facilities and other renewables such as solar. Most hydro ...
References
External links
*
{{Inland waters of Sri Lanka
Buildings and structures in Kandy District
Dams in Sri Lanka
Gravity dams
Hydroelectric power stations in Sri Lanka
Dams completed in 1990