|Opening date||April 1969|
|Owner(s)||Ceylon Electricity Board|
|Dam and spillways|
|Type of dam||Gravity dam|
|Maximum length||300 m (980 ft)|
|Maximum width||130 m (430 ft)|
|Polpitiya Power Station|
|Turbines||2 × 37.50 MW|
|Installed capacity||75 MW|
Power station and reservoir
The dam creates the Laxapana Reservoir, which is sustained from water flowing in from the Kelani River, and discharged water from the Old Laxapana Hydroelectric Power Stations and New Laxapana Hydroelectric Power Stations. The Old Laxapana and New Laxapana hydroelectric power stations belongs to the Norton Dam and Canyon Dam respectively, delivered via penstocks.
The combined hydro resource of the Laxapana Reservoir is fed into another penstock to a further 7.8 km (4.8 mi) downstream for utilization of power generation at the Polpitiya Power Station, located at 37.50 MW each, both of which were commissioned in April 1969.. The power station, which is also called as the Samanala Hydroelectric Power Station, consists of two generation units rated at
- "CEB Hydropower Generation". Ceylon Electricity Board. Archived from the original on 18 January 2014. Retrieved 18 January 2014.
- "CEB Generation Details: Laxapana Complex". Ceylon Electricity Board. Archived from the original on 16 January 2014. Retrieved 18 January 2014.
- "Hydroelectric Power Plants in Sri Lanka". Industcards.com. Retrieved 19 January 2014.