 Both were horse-operated, with the help of manpower.The Emperor Gold Mine, at Vatukoula, in northern Viti Levu, used gauge tramways underground, with 21 battery-electric locomotives.Tramways were built for reclamation at Suva and Lautoka, airfield construction at Nadi (1941–1942), tunnelling for the Suva sewerage system and for the 1980s Monasavu hydroelectric scheme in the centre of Viti Levu.