SINGAPORE’s Land Transport Authority (LTA) has awarded a joint venture of Nishimatsu Construction and the Singapore branch of Okumura Corporation a $S 242m ($US 178.9m) contract to design and build the 2.4km section of Cross Island Line Phase 2 (CRL2) from West Coast station to Jurong Lake District station.
The twin-bore tunnels will run beneath the Sungei Pandan canal and key infrastructure such as the West Coast Highway and Ayer Rajah Expressway at a depth of 40m. This compares with the usual 30m. Tunnelling work will be mainly through weathered soil and hard sedimentary rock.
LTA says that real-time monitoring will be implemented during construction, with the authority working with its contractors to ensure ground stability and safe construction while minimising the impact on stakeholders and neighbouring infrastructure.
Construction is expected to start in the fourth quarter of this year. CRL2 is due to open in 2032, running for 15km with six underground stations.
Work is also underway on the 29km Phase 1 of the CRL project, due for completion in 2030 and comprising 29km of new metro with 12 stations. Engineering studies for CRL Phase 3 are ongoing.
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