Castlereigh Dam
The Castlereigh Dam is a gravity dam built across the Kehelgamu Oya, a major tributary to the Kelani River, approximately south-west of Hatton, in the Central Province of Sri Lanka. The dam is a popular location for both locals and tourists.
Reservoir and power station
The dam creates the iconic Castlereigh Reservoir, which is almost entirely maintained by the inflow of water from the Kehalgamu Oya. Water from the reservoir is diverted to the Wimalasurendra Power Station, located approximately downstream at, near Norton Bridge. The power station discharges the water into the Norton Reservoir, created by the Norton Dam, located at the same site.The power station consists of two 25-megawatt units, for the combined plant capacity of. Both units were commissioned in.