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The following table lists most rivers of Sri Lanka. Since Sri Lanka is a trilingual country, some rivers may have a Sinhala name (i.e. Kalu Ganga), while other have an English name (i.e. Kelani River). There are two words meaning "river" in the Sinhala language, namely Ganga (ගඟ) and Oya (ඔය), of which the usage of both terms is arbitrary.
The earliest examples of irrigation works in Sri Lanka date from about 430 BCE, during the reign of King Pandukabhaya, and were under continuous development for the next thousand years. In addition to constructing underground canals , the Sinhalese were the first to build completely artificial reservoirs to store water , referred to as tanks ...
' Great River ') is a major watercourse in the Sabaragamuwa Province of Sri Lanka. It measures approximately 134 km (83 mi) in length. [1] It runs across four provinces and five districts. The Maha Oya has 14 water supply networks to serve the need of water and more than 1 million people live by the river. [2]
Maduru Oya National Park (Sinhala: මාදුරු ඔය ජාතික වනෝද්යානය, romanized: Māduru Oya Jātika Vanōdyānaya; Tamil: மாதுரு ஓயா தேசிய பூங்கா, romanized: Māturu Ōyā Tēciya Pūṅkā) is a national park of Sri Lanka, established under the Mahaweli development project and also acts as a catchment of the ...
Sri Lanka is pockmarked with many irrigation dams, with its water resource distributed across nearly the entirety of the island for agricultural purposes via artificial canals and streams. Utilization of hydro resources for agricultural production dates back to the pre-Colonial era , with the current crop production now largely dependent on ...
On the right bank of the river, at the edge of the Mutugalla villu, ruins of an ancient cave monastery with inscriptions dating back to between 2nd and 7th century BC have been found. [3] Flood Plains National Park which declared in 1984 is in the upper flood plains of Mahaweli River and Somawathiya National Park declared in 1986 is situated in ...
The Kotmale River [1] (Sinhala: කොත්මලේ ඔය) is the longest tributary of Mahaweli River. The river begins as the Agra Oya, in the Horton Plains. The Central Plains have an annual rainfall of between 125 and 200 inches a year. The river is approximately 70 km (43 mi) long and drains a basin of about 58,534 ha (226 square miles).
The tunnel begins at the dam site, and stretches north at a distance of approximately 7.4 km (4.6 mi) towards Pundaluoya, before stretching a further 5.5 km (3.4 mi) north-west towards Kumbaloluwa and ending up at its powerhouse at the Kotmale River near Niyamgamdora, at approximately , 2 km (1.2 mi) downstream of the confluence of Pundal River ...
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