Singapore’s Land Transport Authority (LTA) awarded the joint venture of Gammon Construction and Engineering – Bachy Soletanche Singapore a civil contract for the design and construction of Ang Mo Kio station and tunnels under the first phase of the Cross Island Line (CRL1).
SGD 644 million (USD 471.78 million) is the value of the contract that also covers the addition and alteration works to the existing Ang Mo Kio station along the North-South Line (NSL). When completed, Ang Mo Kio station will be an interchange between CRL and NSL.
The construction works for the CRL1 Ang Mo Kio station are expected to start in the fourth quarter of this year, with passenger service expected to be launched in 2030.
The Ang Mo Kio station is an underground station located adjacent to the busy junction of Ang Mo Kio Ave 3 and Ang Mo Kio Ave 8. As it will be located close to the NSL viaduct and surrounding structures, LTA and the contractor will closely monitor the project’s progress and ensure that all works are carried out safely, with minimal impact to existing structures.
Deep excavation works for the Ang Mo Kio station will be carried out under challenging ground conditions, as the rock is typically weaker at the transition point between the Old Alluvium to Bukit Timah Granite formation. This requires the use of specially-designed machinery to carry out the excavation works safely.
When completed, the station will have entrances that connect directly to different residential blocks, AMK Hub, Ang Mo Kio Integrated Transport Hub and Ang Mo Kio Town Garden East. Two of the new entrances will be connected to the station via underpasses. To ensure smooth traffic flow on the roads, these underpasses will be constructed using a “pipe-roofing and mining” method, where a box structure made of pipes will support the ground while mining works are carried out beneath the surface of the road. This method minimises disturbance to the surrounding roads, buildings and underground services, as compared to the more traditional method of open cut excavation from the ground surface.
This year, LTA has signed a USD 266.22 million contract for the construction of a 3.2 km tunnel between Aviation Park station and Loyang station and a USD 735.84 million contract for Pasir Ris interchange station on the CRL 1.
The first phase of Cross Island Line (CRL1), which is the 8th MRT Line, will provide transport services on a 29 km-long line with 12 stations from Aviation Park to Bright Hill. The CRL will have almost half of its stations as interchanges with other rail lines. It will serve the existing and future developments in the eastern, north-eastern and western corridors.