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The tank cascade system (Sinhala: එල්ලංගාව, romanized: ellaṅgāva) is an ancient irrigation system spanning the island of Sri Lanka. It is a network of thousands of small irrigation tanks (Sinhala: වැව, romanized: wewa) draining to large reservoirs that store rainwater and surface runoff for later use. They make ...
Kala Wewa (Sinhala:කලා වැව), built by the King Datusena in 460 CE, is a reservoir complex consisting of two reservoirs, Kala Wewa and Balalu Wewa. It has the capacity to store 123 million cubic meters of water. This reservoir complex has facilitated with a stone made spillway and three main sluices. From the central major sluice, a ...
The first tank which can be identified with certainty was built by King Pandukabhaya, who reigned from 437 to 367 BC. It is said that he had three tanks built, namely Abhaya Wewa, Gamini Wewa, and Jaya Wewa. Of these, only one, Abhaya Wewa, can be identified with an extant tank, Basawakkulama Wewa.
Jetavanaramaya is the largest stupa constructed in any part of the world. It is over 120 metres (390 ft) in height and has a diameter of 367 feet (112 m). The foundation is 252 feet (77 m) deep. The deepest-known foundation of the ancient world. It needed bricks that could bear the load of 368 pounds (167 kg).
58.5 m (192 ft) Parakrama Samudra (or King Parakrama's sea or the Sea of King Parakrama) is a shallow reservoir (wewa), consisting of five separate wewa (reservoirs) (thopa, dumbutulu, erabadu, bhu, kalahagala tanks) connected by narrow channels in Polonnaruwa, Sri Lanka. The northernmost reservoir is the oldest and referred to as Topa wewa ...
Sorabora Wewa (Sinhalese: සොරබොර වැව) is an ancient reservoir in Mahiyangana, Badulla District Sri Lanka. It is thought to have been constructed during the reign of King Dutugemunu (161 BC – 137 BC) by a giant named Bulatha. [1] In the ancient past, this tank was known as the 'Sea of Bintenna'. [2]
In the northeast part of the North Central Province, Padaviya boasts two large ancient irrigation tanks – Padaviya Wewa and Vahalkada Wewa. Among these, Padaviya has garnered significant attention, believed by tradition to be the largest of the ancient tanks.
Minneriya tank[1] is a reservoir in Sri Lanka made by an old civilisation; the Anuradhapura Kingdom. King Mahasena ordered a dam build across the Minneriya River, which made the lake. The tank covered 4,670 acres (18.9 km 2). The Minneriya Tank was built by the great tank builder, King Mahasen (276–303) who ruled in Anuradhapura. [2]