On 22 March 2013, UEM Builders Berhad accomplished another achievement with its Pahang-Selangor Raw Water Transfer (PSRWT) Tunnel project during the first Tunnel Boring Machine (TBM 3) breakthrough ceremony at the PSRWT project site in Hulu Langat Selangor. The breakthrough completed the excavation tunnel works of 39.4 km out of 44.6 km.

The guest of honour, YBhg Dato’ Sri Dr. Ali Hamsa, Chief Secretary of Jabatan Perdana Menteri pressed the ignition button of the TBM 3 machine as a symbolic gesture to break the tunnel wall. Other senior government officers attended the event were YBhg Dato’ Mohammed Khusrin Munawi, State Secretary of Selangor, YBhg Datuk Loo Took Gee, Secretary General of Ministry of Energy, Green Technology and Water (KeTTHA), YBhg Dato’ Ibrahim Muhamad, Secretary General of Ministry of Rural and Regional Development (KKLW) as well as Mohd Razin Ghazali, Managing Director of UEM Builders Berhad, representatives from the Ministry of Finance, Ministry Of Home Affairs, Ministry of International Trade and Industry, KeTTHA, KKLW, Ministry of Plantation Industries and Commodities, Japan International Cooperation Agency, Japanese Embassy, Consultants, Shimizu-Nishimatsu–UEMB-IJM Joint Venture employees, suppliers and subcontractors. More than 500 people attended the event.

The ceremony was followed by a recital of doa and “KIYOME”, a ritual purification session by the Japanese team to bless the breakthrough of tunnel excavation works.

The construction of the tunnel involves tunneling deep under the ground up to 1,200 meters below the Titiwangsa range using Tunnel Boring Method. It is interesting to know that the project has three tunnel boring machines each named KAMILA, an Arabic word which means ‘perfect’, SELPAH which are parts of the words Selangor and Pahang and TIARA MIDORI where ‘Tiara’ is a Malay word carries the meaning crown while ‘Midori’, a Japanese word means ‘green’.

There are more than 800 workers involved in the construction of the tunnel and to date the progress of construction works recorded an achievement 78% of work schedule.

The tunnel will have a capacity to convey 1.89 million liters of raw water daily from Pahang to Selangor to meet the anticipated water demand in both Selangor and Kuala Lumpur. Upon completion, the PSRWT tunnel is slated to be the 11th longest tunnel in the world and the biggest tunnel in Southeast Asia.