Kathmandu. The construction of major structures including the underground powerhouse of the 140 MW Tanahun Hydropower Project under construction in Rishing Rural Municipality-1 of Tanahun has reached the final stage. Under the Package-2 of the project, the installation of the powerhouse, tunnel and related equipment has been completed by almost 80 percent.

The construction of Package-2 is being done through China’s Sinohydro Corporation. According to project chief Shyamji Bhandari, the excavation work required for the construction of underground structures has been completed and the civil construction of most of the structures has been completed.

The excavation and concreting work of major structures including underground powerhouse, tailrace tunnel, cable tunnel, surge shaft, intake and draft tube tunnel and backfill concreting of penstock has almost been completed. The concrete lining work of the main tunnel has reached the final stage, according to project chief Bhandari.

The work of installing the equipment required for power generation in the underground powerhouse has begun. He said that electromechanical equipment including generators, turbines, CCTVs, transformers and other electromechanical equipment are being installed and tested in the powerhouse.

Similarly, the construction of the powerhouse and dam operation building to be constructed for environmental flow is going on. According to the project, the installation and testing of the equipment has also been carried out simultaneously while the construction of the underground powerhouse and most of the civil structures of the tunnel is being completed.

After the completion of the construction of structures and equipments under Package 2, the required infrastructures will be prepared for operating the power generation system of the project.