Construction commences on Singapore’s Cross Island Line

23 January 2023

The start of construction of Singapore’s Cross Island Line (CRL) Phase 1 has been marked with a ground-breaking ceremony on the site of the future CRL Bright Hill station.

The 50km CRL will be Singapore’s eighth and longest fully-underground MRT line.

Various technologies have been adopted to enhance construction efficiency and safety during construction, including virtual reality and augmented reality tools to enhance capabilities and help co-ordination. Productivity will also be improved through platforms such as computer simulations of different operating scenarios at the Changi East Depot.

Large-diameter TBMs will be used to dig various stretches of tunnels between the CRL stations. The 12.6m diameter machines, the largest to be used on a Land Transport Authority (LTA) project, will make a single journey to bore the bi-directional tunnels.

At the CRL Teck Ghee station, a rectangular TBM will be used for the construction of the underground linkways. The trenchless method will be used to improve overall construction productivity and safely. LTA says it will explore other innovative construction methods to improve overall construction productivity and safety.

LTA is progressively calling tenders for CRL Phase 2, which comprises six stations from Turf City to Jurong Lake District, while engineering studies are under way for the third phase.