The Deduru Oya is the sixth-longest river 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 ...

. It measures approximately in length. It runs across four provinces and five districts.

Tributaries

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

catchment area In human geography, a catchment area 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