Malaysia’s Gamuda Bhd, in a 60:40 joint venture with Singapore company Wai Fong Construction, has won the S$467m (US$348m) contract for the design and construction of Defu station and associated tunnels. China Communications Construction Co Ltd has been awarded the S$397m (US$295m) for Tampines North station and tunnels.

LTA says excavation works for the two contracts are expected to be challenging as the ground conditions comprise thick and soft layers of marine clay as well as a soil-like material comprising sandy and silty clay.

Construction works for Defu and Tampines North stations are expected to start in the second quarter of this year.

The CRL, which will be 29km long and feature 12 stations, is Singapore’s eighth mass rapid transport line. It will serve existing and future developments in the east, north-east and west, linking major hubs such as Jurong Lake District, Punggol Digital District and Changi region. The total cost is S$861m ($US640.51m) and passenger services are scheduled to begin in 2030.

Other civil contracts already awarded for CRL1 include:

Serangnoon North station and tunnels S$454m (US$338m): Hock Lian Seng Infrastructure

Tavistock station and tunnels S$407m (US$303m): Sato Kogyo

3.2km tunnel between Aviation Park station and Loyang station S$356m (US$265m): Taisei Corporation / China State Construction Engineering Corporation Ltd (Singapore) joint venture

Loyang station and tunnels S$748m (US$556m): Woh Hup Pte Ltd / Dongah Geological Engineering Co Ltd (Singapore) joint venture

Aviation Park station and tunnels S$320m (US$238m): Hock Lian Seng Infrastructure Pte Ltd

6km tunnels between Aviation Park station and Changi East Depot S$708m (US$580m): Shanghai Tunnel Engineering Co (Singapore) Pte Ltd / LT Sambo Co Ltd (Singapore) joint venture

Pasir Ris East station S$363m (US$270m): Singapore Engineering & Construction Pte Ltd / Sinohydro Corporation Ltd (Singapore) joint venture