30.5 MW Hydro Power Project – Moragolla

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30.5 MW Hydro Power Project

Asian Development Bank (ADB) is funding the project and Ceylon Electricity Board - CEB (CEB) is the owner of the project.
 N S Associates is the detail designer for ancillary facilities of the entire project under the Lot A2 contractor China Gezhouba Group Co., Ltd.

The project site is located on the upper reaches of the Mahaweli Ganga in the Central Highlands, approximately 22 km South of Kandy City close to the village of Ulapane in the Kandy district and about 130 km north-east of Colombo. The site is in a hill area with an altitude of EL. 470 m to El. 650 m. The dam site is on 7°06’ North latitude and 80°34’ East longitude, approximately 3.5 km downstream from the confluence of the Mahaweli Ganga with the Kotmale Oya.

The powerhouse site is approximately 3 km downstream from the dam site and approximately 0.5 km north-west of the tailrace outfall of the existing Kotmale hydropower station.

Lot A2 contract consists of Construction of 37m high dam with five spillway gates, intake, headrace tunnel, surge tank, penstock tunnel and shaft, surface type powerhouse with switchyard, relocation of irrigation facilities, and access roads.
The scope of NSA includes Grounding System and Lightning protection system, Measure the soil resistivity, Water supply and sanitary systems, Ventilation and air conditioning system, Lighting and Socket Outlet System, Fire detection / Alarm system and fire-fighting system, Elevator (Lift) of Power Station, Intake Dam site, Surge Tanks, Penstock, and Access door designs in Adit.


Moragolla, Kandy, Sri Lanka


May 2021 – on going


China Gezhouba Group Co. Ltd

Services of the Company

Design Work of Ancillary Facilities, Detail Architectural designs of buildings and Structural Design Detailing of the Lot A2 Scope


Eng. Nihal Sooriyarachchi
Building Services Engineer

Archt. K P J S de Silva
Chartered Architect

Archt. Praneeth Amarathunga
Chartered Architect

Eng. Santha De Silva
Senior Electrical Engineer

Eng. Pasan Jayasignhe
Electrical and ELV Design Engineer

Eng.  G A D L J Seneviratne
Senior Mechanical Engineer

Eng. Ishara Udayanga
Mechanical Engineer

Eng. Sameera Priyanath
Senior Structural Engineer

Eng. Dhanuka Lahiru
Structural Engineer

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