By rosebell
While the final civil contract for Cross Island Line (CRL)Phase 2 has been granted by Singapore’s Land Transport Authority (LTA), the design and construction of tunnels between Maju station (CR16) and Clementi station (CR17) will be up to Sinohydro Corporation Ltd (Singapore branch). Completing LTA’s appointment of contractors for the nine civil contracts for CRL2, this contract’s value is almost S$199m (£117.5m).
Considering that Sinohydro Corporation 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 the construction of CRL2 Clementi station via a joint venture, LTA says this company has a strong track record in both local and overseas infrastructure projects.
The location of twin bored tunnels, running 1.4km between CR16 and CR17, is due to be beneath key infrastructure such as the Sungei Ulu Pandan canal and due to a predominantly hard sedimentary rock, a slurry TBM will be used.
While the scheduled date for commencing construction works is the fourth quarter of this year, in 2032 passenger service for CRL Phase 2 will be start.
In order to advancing the design, supply, installation, testing, and commissioning of the power supply system for the CRL, a separate S$400m (£236m) contract, has been concluded to Siemens Mobility Pte Ltd and Concord Corporation Pte Ltd Consortium.
Considering that providing the operational requirement for the high-capacity CRL is necessary, besides the 66kV and 22kV AC systems, the traction power supply system will also be designed for 1500V DC.
As Singapore’s eighth MRT line, the CRL is going to 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 and about half of its stations will have interchanges with other rail lines.
Comprising of three phases, CRL’s Phase 1 with 29km length and 12 stations was announced in 2019, whereas its construction works have commenced and are slated to be completed by 2030. The 2022 was the date of announcing CRL Phase 2, that is approximately 15km and has six underground stations. Also Engineering studies for the CRL Phase 3 are ongoing.
