Tissa Wewa

Tissa Wewa is an ancient irrigation reservoir located in Sri Lanka, built around the 2nd century BCE. It was constructed to store and supply water for agriculture, especially rice farming, supporting local communities and enhancing food security. The tank's impressive engineering includes a large earth embankment, sluice gates, and a weir that regulate water flow. Today, Tissa Wewa continues to serve as a vital water source, a cultural landmark, and a popular spot for birdwatching and recreation, illustrating advanced ancient Sri Lankan hydraulic engineering and the region’s historical reliance on effective water management.