The work and the technique: Ulu Jelai Hydroelectric Project, Malaysia

One major challenge in building the dam in the Pahang state was coping with difficult weather, which forced the crew to work and excavate under almost daily tropical downpours.To avoid landslides, it was necessary to secure the surrounding land with sprayed concrete, ground nails and anchor bolts.

The project mainly involved constructing the Susu dam on the Bertram river, over 88 metres high, and entirely built using the advanced RCC (Roller Compacted Concrete) technique.

Besides the dam, the project also included the construction of an underground power plant that could house two Francis turbines, each with a capacity of 191 MW, and the construction of approximately 25 km of hydraulic tunnels, of which about 16 km were excavated using TBMs (tunnel boring machine).