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Nadarivatu Dam

Nadarivatu Dam
Nadarivatu Dam is located in Fiji
Nadarivatu Dam
Location of Nadarivatu Dam in Fiji
Country Fiji
Location Nadarivatu District, Nadroga-Navosa Province
Coordinates 17°40′02.66″S 177°56′29.14″E / 17.6674056°S 177.9414278°E / -17.6674056; 177.9414278Coordinates: 17°40′02.66″S 177°56′29.14″E / 17.6674056°S 177.9414278°E / -17.6674056; 177.9414278
Purpose Power
Status Operational
Construction began 2009
Opening date 2012; 5 years ago (2012)
Construction cost US$150 million
Owner(s) Fiji Electricity Authority
Dam and spillways
Type of dam Gravity
Impounds Sigatoka River
Height (foundation) 40 m (130 ft)
Height (thalweg) 32 m (105 ft)
Length 75 m (246 ft)
Dam volume 36,000 m3 (47,000 cu yd)
Spillway type Controlled overflow, three radial gates
Reservoir
Total capacity 1,009,000 m3 (818 acre·ft)
Active capacity 244,000 m3 (198 acre·ft)
Power station
Name Nadarivatu Hydro Power Station
Coordinates 17°40′39.72″S 177°54′46.17″E / 17.6777000°S 177.9128250°E / -17.6777000; 177.9128250
Commission date 7 September 2012
Hydraulic head 335.7 m (1,101 ft)
Turbines 2 x 20.85 MW (27,960 hp) Pelton-type
Installed capacity 41.7 MW (55,900 hp)
Annual generation 101 GWh (360 TJ)

The Nadarivatu Dam, also known as the Korolevu Dam, is a concrete gravity dam on the upper reaches of the Sigatoka River in Nadarivatu District of Nadroga-Navosa Province, Fiji. The primary purpose of the dam is to generate hydroelectric power in a 41.7 megawatts (55,900 hp) run-of-the-river scheme. The Nadarivatu Hydropower Scheme was first identified in 1977 during a hydropower study. Details plans for the project were developed in 2002 and major construction began in 2009. The power station was commissioned on 7 September 2012 but an inauguration ceremony led by Prime Minister Frank Bainimarama was held a week later on 14 September. Funding and loans for the project was provided by several organizations to include the China Development Bank (US$70 Million), Fiji Electricity Authority bonds (US$50 million), ADZ Bank (US$30 million). The 40 m (130 ft) tall dam diverts water from the Sigatoka River through a 3,225 metres (10,581 ft) long headrace/ tunnel to a power station along the Ba River to the southwest. The power station contains two 20.85 megawatts (27,960 hp) Pelton turbine-generators. The drop in elevation between the reservoir and the power station affords a gross hydraulic head (water drop) of 335.7 metres (1,101 ft).


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