The Deduru Oya is the sixth-longest river of

Sri Lanka Sri Lanka, officially the Democratic Socialist Republic of Sri Lanka, also known historically as Ceylon, is an island country in South Asia. It lies in the Indian Ocean, southwest of the Bay of Bengal, separated from the Indian subcontinent, ...

. The long river runs across four provinces and five districts.

Tributaries

* Kospothu Oya * Dik Oya * Ratwila Ela * Kimbulwana Oya * Hakwatuna Oya * Maguru Oya * Kolamunu Oya * Delvita Oya Its

catchment area A catchment area in human geography, is the area from which a location, such as a city, service or institution, attracts a population that uses its services and economic opportunities. Catchment areas may be defined based on from where people are ...

receives approximately 4,313 million cubic metres of rain per year, and approximately 27 percent of the water reaches the sea. It has a catchment area of 2,620 square kilometres.

References

{{SriLanka-river-stub Bodies of water of Kurunegala District Bodies of water of Puttalam District Rivers of Sri Lanka