Parakrama Samudra (or King Parakrama's sea or the Sea of King Parakrama) is a shallow

reservoir A reservoir (; ) is an enlarged lake behind a dam, usually built to water storage, store fresh water, often doubling for hydroelectric power generation. Reservoirs are created by controlling a watercourse that drains an existing body of wa ...

( wewa), consisting of five separate wewa (reservoirs) (thopa, dumbutulu, erabadu, bhu, kalahagala tanks) connected by narrow channels in

Polonnaruwa Poḷonnaruwa, (; ) also referred as Pulathisipura and Vijayarajapura in History of Sri Lanka, ancient times, is the main town of Polonnaruwa District in North Central Province, Sri Lanka. The modern town of Polonnaruwa is also known as New Town, ...

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 northernmost reservoir is the oldest and referred to as ''Topa wewa'' (Sinhalese wewa is almost equal to English word lake or reservoir, but used unique Sri Lankan technology) built around 386 AD. The middle section ''Eramudu wewa'' and the southernmost portion, at the highest elevation, is ''Dumbutula wewa'', both sections were added and the reservoir expanded during the reign of King Parâkramabâhu I.PARAKRAMA SAMUDRA (LAKE PARAKRAMA)
- International Lake Environment Committee This wewa (reservoir) was built under the quote "do not let even a drop of rainwater in this country to go to the sea without use". The wewa (reservoir) was so large it was called Samudhraya which means "the ocean".

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* Bodies of water of Polonnaruwa District Buildings and structures in North Central Province, Sri Lanka Reservoirs in Sri Lanka Lakes of Sri Lanka {{NorthCentralLK-geo-stub