Land Transport Authority (LTA) of Singapore awards the last civil contract for the Cross Island Line in a press release on August 15 2024

Final Civil Contract for Cross Island Line Phase 2 and Power Supply Contract for Cross Island Line Awarded

The Land Transport Authority (LTA) has awarded the final civil contract for the Cross Island Line (CRL) Phase 2, along with a separate contract for the CRL’s power supply system.

The civil contract for the design and construction of tunnels between Maju station (CR16) (working name) and Clementi station (CR17) was awarded to Sinohydro Corporation Limited (Singapore Branch). Valued at around S$199 million, this contract completes LTA’s appointment of contractors for the nine civil contracts under CRL Phase 2.

Sinohydro Corporation Limited has a strong track record in both local and overseas infrastructure projects. The company previously constructed Napier station on the Thomson-East Coast Line and is currently involved in the construction of CRL Phase 1 Pasir Ris East station, as well as in the construction of CRL Phase 2 Clementi station via a joint venture.

Engineering Highlights

The twin bored tunnels, each extending 1.4 kilometres between CR16 and CR17, will be constructed beneath key infrastructure such as the Sungei Ulu Pandan canal. The ground conditions in this area predominantly consist of hard sedimentary rock, for which a slurry tunnel boring machine will be used to construct the tunnels. Real-time monitoring and safety measures will be implemented during the tunnelling works.  LTA and the contractors will closely monitor the works and implement necessary mitigation measures to ensure ground stability as well as safe and timely completion, while minimising any impact on nearby stakeholders and infrastructure.

Construction works are expected to start in the fourth quarter of 2024 and passenger service for CRL Phase 2 is targeted to commence in 2032.

CRL’s Power Supply System

A separate contract, valued at around $400 million, has been awarded to Siemens Mobility Pte Ltd and Concord Corporation Pte Ltd Consortium for the design, supply, installation, testing, and commissioning of the power supply system for the CRL.

Besides the 66kV and 22kV AC systems, the traction power supply system will also be designed for 1500V DC to meet the operational requirement for the high-capacity CRL.

Siemens Mobility previously completed the power supply systems for the Downtown Line (DTL), and is currently implementing the power supply systems for the Downtown Line 3 Extension (DTL3e), Circle Line 6 (CCL6), North East Line Extension (NELe) and the Jurong Region Line (JRL). The company has also been awarded the contract for the CRL overhead conductor rail system, which supplies traction power to the trains. Concord Corporation is also the current consortium partner with Siemens Mobility for JRL’s power supply system. Concord was previously involved in the installation of power supply system for Circle Line and the power supply system replacement and upgrading works on the North-South and East-West Lines.

About the CRL

The CRL is Singapore’s eighth MRT line. It will serve existing and future developments in the eastern, north-eastern and western corridors, linking major hubs such as Jurong Lake District, Punggol Digital District and Changi region. The CRL will have almost half of its stations as interchanges with other rail lines, making it easier and more convenient for commuters to travel across the rail network.

The fully underground CRL will be constructed in three phases. Announced in 2019, CRL Phase 1 is 29 kilometres long, and comprises 12 stations. Construction works have commenced and are targeted to be completed by 2030. CRL Phase 2, announced in 2022, is approximately 15 kilometres and comprises six underground stations. Engineering studies for the CRL Phase 3 are ongoing and more details will be announced after these studies are completed.

source:LTA.