Shanghai Tunnel Engineering Co Ltd (STEC) has been awarded a contract to design and construct a station and tunnels on Phase 1 of the Downtown Line in Singapore.

The US$162.4M contract – C902 – involves construction of Promenade station and associated tunnel works, each 600m long. The new station will be built below the existing Circle Line station.

Work on site is due to commence in the last quarter of the year for completion in 2013. The tunnels are to be excavated using bored tunnelling from a launch shaft adjacent to Rochor Flyover.

Construction works on Phase 1 of Downtown Line started in February, and the prime tunnelling works on the 4.3km long line are on C905 which is being undertaken by Shimizu next to STEC’s newly awarded contract (T&TI, March, p6).

Separate to the Downtown Line, STEC has been involved in bored tunnelling work on Circle Line 1, 3, 4 and 5 projects.

Other tunnel works on Phase 1 of Downtown Line, to be finished by 2013, include: C906 to Sembawang Engineers & Constructors; C907 by Taisei; C908 by a JV of Samsung and Soletanche Bachy; and, C909 by Gammon Construction.

Stations are being built at Bayfront, Landmark, Cross Street and Chinatown.

Earlier this year the Government in Singapore spoke of a number of plans for further metro extensions, such as for the North-South and the East-West lines. There will also be two new lines totalling 48km in length – the Thomson (TSL) and Eastern Region (ERL) lines, to be constructed by 2018 and 2020, respectively.