The Malwathu Oya (Sinhala: මල්වතු ඔය Malwathu Oya, Tamil: அருவி ஆறு Aruvi Aru) is the second longest river in Sri Lanka. The river originates in the North Central Province of Sri Lanka and enters the sea on the northwest coast, into the Gulf of Mannar, near Vankalai.[1] It is a seasonal river that spans over 164 km (102 mi) through paddy and forest lands, which are used by the inhabitants to cultivate for their survival.[2][3]
The river basin covers an area of 3,284 km2 (1,268 sq mi) (with a length of 125 km (78 mi), a maximum width of 40 km (25 mi) at an average height of 85.5 m (281 ft) above sea level). The average annual rainfall in the basin area is 1,223 mm (48.1 in). The Ritigala mountain range, which comprises four main peaks (the highest of which is over 900 m (3,000 ft) high), in the upper reaches of the river, serves as the main catchment.
^Sykes, Jim (2018). The Musical Gift: Sonic Generosity in Post-War Sri Lanka. Oxford University Press. p. 74. ISBN 9780190912031.
^Perera, PA Chintaka T.; Sundarabarathy, Thenmoli V.; Sivananthawerl, Thavananthan; Kodithuwakku, Suranga P.; Edirisinghe, Udeni (1 December 2016). "Arsenic and Cadmium Contamination in Water, Sediments and Fish is a Consequence of Paddy Cultivation: Evidence of River Pollution in Sri Lanka". Achievements in the Life Sciences. 10 (2): 144–160. doi:10.1016/j.als.2016.11.002. ISSN 2078-1520.
^P.A.C.T. Perera, T.V. Sundarabarathy, T. Sivananthawerl, U. EdirisingheSeasonal variation of water quality parameters in different geomorphic channels of the upper Malwathu Oya in Anuradhapura, Sri LankaTrop. Agric. Res., 25 (2014), pp. 158-170
The MalwathuOya (Sinhala: මල්වතු ඔය MalwathuOya, Tamil: அருவி ஆறு Aruvi Aru) is the second longest river in Sri Lanka. The river originates in the North...
districts. Kospothu Oya Dik Oya Ratwila Ela Kimbulwana Oya Hakwatuna Oya Maguru Oya Kolamunu Oya Its catchment area receives approximately 4,313 million...
Rajasthan, India Maduru Oya River - Sri Lanka Mae Sai River -Myanmar (Tachileik) -Thailand (Mae Sai) Maha Oya River - Sri Lanka MalwathuOya River - Sri Lanka...
Colombo in the North Central Province, on the banks of the historic MalwathuOya. The city is now a World Heritage Site famous for its well-preserved...
is a trans-basin diversion canal transferring water from Kala Oya Basin to MalwathuOya Basin. It has a gradient of the order of 0.32 m (1.0 ft) drop...
The Maduru Oya is a major stream in the North Central Province of Sri Lanka. It is approximately 135 km (84 mi) in length. Its catchment area receives...
The Maha Oya (Sinhala: මහ ඔය, lit. 'Great River') is a major watercourse in the Sabaragamuwa Province of Sri Lanka. It measures approximately 134 km (83 mi)...
The Yan Oya is the fifth-longest river of Sri Lanka. The 142 km (88 mi) long river's catchment area receives approximately 2,371 million cubic metres...
The Kumbukkan Oya is the twelfth-longest river of Sri Lanka. The 116 km (72 mi) long river runs across two provinces and two districts. Its catchment...
Shanika (27 March 2015). "Uma Oya Project: More damages than benefits?". Daily FT. Retrieved 1 July 2017. "Lower MalwathuOya Project". Ministry of Irrigation...
The Mi Oya is a 108 km (67 mi) long river, in Sri Lanka. It is the fifteenth-longest river in the country. It begins in Saliyagama and flows northwest...
elephants. A biodiversity survey of just one tank cascade system in the MalwathuOya river watershed found that it supported approximately 400 plant and animal...
Archived from the original on 3 August 2016. Retrieved 16 May 2016. "Lower MalwathuOya project – A series of misconception errors". Daily FT. 12 September 2017...
rock with naga sketch evdcence and drain, ancient pond Stone Bridge, MalwathuOya Nuwaragam Palatha Central Sujatharama Vihara Puhulegama No. 134, Puhulewewa...
to welcome them. On the way to Puttalam he had to wade across the Deduru Oya but due to floods it could not be crossed on foot; and several parties of...
Dam (Sinhalese: ඉඟිණිමිටිය ජලාශය) is an embankment dam built across the Mi Oya, at Inginimitiya, Sri Lanka. Measuring 4,880 m (16,010 ft) wide and 18 m...
The Rambakan Oya Dam is an embankment dam in Maha Oya, Eastern Province, Sri Lanka. The reservoir was designed and constructed by the Sri Lanka Mahaveli...
influence of Kingdom of Kandy. The bridge was built across the Gallanda Oya, which linked Badulla and Kandy on an ancient route. The Bogoda bridge is...
originated closer to main rivers in Sri Lanka such as Mahaweli, Kelani, Malwathu and Gin Ganga. Rivers in Sri Lanka flow in a radial pattern, from central...
Following the construction of bridges over the Mahaweli Ganga and the Maha Oya the last rail tracks were laid on 15 April 1867. The next day, the first...
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