Dams & Reservoirs in Sri Lanka
Water has shaped Sri Lanka for millennia, and its dams tell that story twice over. The ancient kings built a network of tanks and reservoirs to green the dry zone, and giants like the Parakrama Samudra at Polonnaruwa still shimmer beside the ruins that made them famous.
The modern highland dams are scenery in their own right. Victoria, the country's tallest, holds back a long reservoir ringed by hills, and the drive between Victoria, Randenigala and Rantembe strings several together on one scenic loop. These are working infrastructure, so viewing is usually from designated points rather than the dam itself.
Dams to visit in Sri Lanka
- Kotmale Reservoir — A large reservoir and dam set among terraced tea hills below Nuwara Eliya, with sweeping views and a hilltop temple built to replace villages lost to the water.
- Polgolla Dam — Polgolla Dam is a significant hydroelectric and irrigation project located near Kandy, Sri Lanka, built across the Mahaweli River. Officially known as the Polgolla Barrage, it plays an important role in managing water resources by diverting river water for irrigation, power generation, and regional development.
- Victoria Dam Viewpoint and Victoria Observation Room — A viewpoint over the graceful arch of the Victoria Dam and its vast reservoir, the largest in the country, set in the hills east of Kandy.
Frequently asked questions
- Which is the biggest dam in Sri Lanka?
- The Victoria Dam on the Mahaweli River is the tallest in the country. Its reservoir and the surrounding hill scenery make the viewpoints a popular stop near Kandy.
- Can you visit ancient reservoirs too?
- Yes. The Parakrama Samudra at Polonnaruwa is a vast ancient tank you can walk beside, best at sunset, and it pairs naturally with the nearby ruins.