The Land Transport Authority (LTA) of Singapore has awarded two civil contracts totalling SGD1.16bn ($865.2m) to construct the tunnel and commuter facilities, including pedestrian overhead bridges, bus stops, sheltered walkways, and cycling paths for two sections of the North-South Corridor (NSC).
The contracts are for the construction of these facilities between Toa Payoh Rise and Marymount Lane and between Kampong Java Road and Suffolk Walk.
Works on these contracts are expected to begin by the end of 2018.
The LTA has awarded a SGD602.6m ($450m) contract to Samsung C&T for the construction of a section of the NSC tunnel between Toa Payoh Rise and Marymount Lane.
Under the contract, Samsung C&T will design and construct a 1.37km section of the tunnel with one exit ramp.
Samsung C&T has completed several road and railway infrastructure projects in South Korea and overseas.
In Singapore, the company has completed several major projects, including a 1.75km stretch of the Marina Coastal Expressway, the North-South Line’s Marina South Pier Station as well as the Downtown Line 3’s Expo and Upper Changi Stations.
Recently, Samsung C&T was also awarded the first NSC civil contract for the NSC tunnel between Novena Rise and Toa Payoh Rise.
The company is also currently involved in the construction of Xilin Station and tunnels, which are part of the Downtown Line Extension, as well as the Caldecott and Marine Parade Stations, which are part of the Thomson-East Coast Line (TEL).
The LTA has awarded a SGD553.8m ($412.7m) tunnel and infrastructure contract to a joint venture between Yongnam Holdings of Singapore and Leighton Asia of Hong Kong for the design and construction of a section of the NSC tunnel between Kampong Java Road and Suffolk Walk.
The Leighton-Yongnam joint venture will design and construct a 0.64km section of tunnel with an entry ramp and an exit ramp between Kampong Java Road and Suffolk Walk.
The contract also includes the provision of commuter facilities and the widening of Rochor Canal.
The 21.5km NSC is expected to be completed by 2026.